diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-1.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-1.json
index 936c71a9fd2f8612286821e62ede5ce1ee37efd2..d61040be959a106ad4e03672be480fbbfc2cd40f 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-1.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::1",
-      "kavlan-11": "2001:660:4406:1a0:105:0::1",
-      "kavlan-12": "2001:660:4406:2a0:105:0::1",
-      "kavlan-13": "2001:660:4406:4a0:105:0::1",
-      "kavlan-14": "2001:660:4406:5a0:105:0::1",
-      "kavlan-16": "2001:660:4406:7a0:105:0::1",
-      "kavlan-18": "2001:660:4406:8a0:105:0::1",
-      "kavlan-2": "2001:660:4406:181:5:0::1",
-      "kavlan-20": "2001:660:4406:3a0:105:0::1",
-      "kavlan-21": "2001:660:4406:6a0:105:0::1",
-      "kavlan-3": "2001:660:4406:182:5:0::1",
-      "kavlan-4": "2001:660:4406:190:5:0::1",
-      "kavlan-5": "2001:660:4406:191:5:0::1",
-      "kavlan-6": "2001:660:4406:192:5:0::1",
-      "kavlan-7": "2001:660:4406:193:5:0::1",
-      "kavlan-8": "2001:660:4406:194:5:0::1",
-      "kavlan-9": "2001:660:4406:195:5:0::1"
+      "kavlan-1": "2001:660:4406:180:5::1",
+      "kavlan-11": "2001:660:4406:1a0:105::1",
+      "kavlan-12": "2001:660:4406:2a0:105::1",
+      "kavlan-13": "2001:660:4406:4a0:105::1",
+      "kavlan-14": "2001:660:4406:5a0:105::1",
+      "kavlan-16": "2001:660:4406:7a0:105::1",
+      "kavlan-18": "2001:660:4406:8a0:105::1",
+      "kavlan-2": "2001:660:4406:181:5::1",
+      "kavlan-20": "2001:660:4406:3a0:105::1",
+      "kavlan-21": "2001:660:4406:6a0:105::1",
+      "kavlan-3": "2001:660:4406:182:5::1",
+      "kavlan-4": "2001:660:4406:190:5::1",
+      "kavlan-5": "2001:660:4406:191:5::1",
+      "kavlan-6": "2001:660:4406:192:5::1",
+      "kavlan-7": "2001:660:4406:193:5::1",
+      "kavlan-8": "2001:660:4406:194:5::1",
+      "kavlan-9": "2001:660:4406:195:5::1"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.1",
-      "ip6": "2001:660:4406:100:5:0::1",
+      "ip6": "2001:660:4406:100:5::1",
       "kavlan": true,
       "mac": "3c:fd:fe:55:eb:a0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-10.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-10.json
index 02769a8c14d0e365ddc19fe3a04784c12f035166..55288e35f16d02bcb22bbdd4570ed06ccf8b715b 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-10.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::a",
-      "kavlan-11": "2001:660:4406:1a0:105:0::a",
-      "kavlan-12": "2001:660:4406:2a0:105:0::a",
-      "kavlan-13": "2001:660:4406:4a0:105:0::a",
-      "kavlan-14": "2001:660:4406:5a0:105:0::a",
-      "kavlan-16": "2001:660:4406:7a0:105:0::a",
-      "kavlan-18": "2001:660:4406:8a0:105:0::a",
-      "kavlan-2": "2001:660:4406:181:5:0::a",
-      "kavlan-20": "2001:660:4406:3a0:105:0::a",
-      "kavlan-21": "2001:660:4406:6a0:105:0::a",
-      "kavlan-3": "2001:660:4406:182:5:0::a",
-      "kavlan-4": "2001:660:4406:190:5:0::a",
-      "kavlan-5": "2001:660:4406:191:5:0::a",
-      "kavlan-6": "2001:660:4406:192:5:0::a",
-      "kavlan-7": "2001:660:4406:193:5:0::a",
-      "kavlan-8": "2001:660:4406:194:5:0::a",
-      "kavlan-9": "2001:660:4406:195:5:0::a"
+      "kavlan-1": "2001:660:4406:180:5::a",
+      "kavlan-11": "2001:660:4406:1a0:105::a",
+      "kavlan-12": "2001:660:4406:2a0:105::a",
+      "kavlan-13": "2001:660:4406:4a0:105::a",
+      "kavlan-14": "2001:660:4406:5a0:105::a",
+      "kavlan-16": "2001:660:4406:7a0:105::a",
+      "kavlan-18": "2001:660:4406:8a0:105::a",
+      "kavlan-2": "2001:660:4406:181:5::a",
+      "kavlan-20": "2001:660:4406:3a0:105::a",
+      "kavlan-21": "2001:660:4406:6a0:105::a",
+      "kavlan-3": "2001:660:4406:182:5::a",
+      "kavlan-4": "2001:660:4406:190:5::a",
+      "kavlan-5": "2001:660:4406:191:5::a",
+      "kavlan-6": "2001:660:4406:192:5::a",
+      "kavlan-7": "2001:660:4406:193:5::a",
+      "kavlan-8": "2001:660:4406:194:5::a",
+      "kavlan-9": "2001:660:4406:195:5::a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.10",
-      "ip6": "2001:660:4406:100:5:0::a",
+      "ip6": "2001:660:4406:100:5::a",
       "kavlan": true,
       "mac": "3c:fd:fe:55:ec:e0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-11.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-11.json
index fa7d7e77016abb9e67602120636e431a82c7b613..f032da639b5b5b995d7c82dcce24112da0728330 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-11.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::b",
-      "kavlan-11": "2001:660:4406:1a0:105:0::b",
-      "kavlan-12": "2001:660:4406:2a0:105:0::b",
-      "kavlan-13": "2001:660:4406:4a0:105:0::b",
-      "kavlan-14": "2001:660:4406:5a0:105:0::b",
-      "kavlan-16": "2001:660:4406:7a0:105:0::b",
-      "kavlan-18": "2001:660:4406:8a0:105:0::b",
-      "kavlan-2": "2001:660:4406:181:5:0::b",
-      "kavlan-20": "2001:660:4406:3a0:105:0::b",
-      "kavlan-21": "2001:660:4406:6a0:105:0::b",
-      "kavlan-3": "2001:660:4406:182:5:0::b",
-      "kavlan-4": "2001:660:4406:190:5:0::b",
-      "kavlan-5": "2001:660:4406:191:5:0::b",
-      "kavlan-6": "2001:660:4406:192:5:0::b",
-      "kavlan-7": "2001:660:4406:193:5:0::b",
-      "kavlan-8": "2001:660:4406:194:5:0::b",
-      "kavlan-9": "2001:660:4406:195:5:0::b"
+      "kavlan-1": "2001:660:4406:180:5::b",
+      "kavlan-11": "2001:660:4406:1a0:105::b",
+      "kavlan-12": "2001:660:4406:2a0:105::b",
+      "kavlan-13": "2001:660:4406:4a0:105::b",
+      "kavlan-14": "2001:660:4406:5a0:105::b",
+      "kavlan-16": "2001:660:4406:7a0:105::b",
+      "kavlan-18": "2001:660:4406:8a0:105::b",
+      "kavlan-2": "2001:660:4406:181:5::b",
+      "kavlan-20": "2001:660:4406:3a0:105::b",
+      "kavlan-21": "2001:660:4406:6a0:105::b",
+      "kavlan-3": "2001:660:4406:182:5::b",
+      "kavlan-4": "2001:660:4406:190:5::b",
+      "kavlan-5": "2001:660:4406:191:5::b",
+      "kavlan-6": "2001:660:4406:192:5::b",
+      "kavlan-7": "2001:660:4406:193:5::b",
+      "kavlan-8": "2001:660:4406:194:5::b",
+      "kavlan-9": "2001:660:4406:195:5::b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.11",
-      "ip6": "2001:660:4406:100:5:0::b",
+      "ip6": "2001:660:4406:100:5::b",
       "kavlan": true,
       "mac": "3c:fd:fe:55:e8:20",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-12.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-12.json
index 6b48da18619134d00652e1c6cc6f4d76797148c5..7f77f8beda2d2999613fabbd9252691fbb3368d3 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-12.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::c",
-      "kavlan-11": "2001:660:4406:1a0:105:0::c",
-      "kavlan-12": "2001:660:4406:2a0:105:0::c",
-      "kavlan-13": "2001:660:4406:4a0:105:0::c",
-      "kavlan-14": "2001:660:4406:5a0:105:0::c",
-      "kavlan-16": "2001:660:4406:7a0:105:0::c",
-      "kavlan-18": "2001:660:4406:8a0:105:0::c",
-      "kavlan-2": "2001:660:4406:181:5:0::c",
-      "kavlan-20": "2001:660:4406:3a0:105:0::c",
-      "kavlan-21": "2001:660:4406:6a0:105:0::c",
-      "kavlan-3": "2001:660:4406:182:5:0::c",
-      "kavlan-4": "2001:660:4406:190:5:0::c",
-      "kavlan-5": "2001:660:4406:191:5:0::c",
-      "kavlan-6": "2001:660:4406:192:5:0::c",
-      "kavlan-7": "2001:660:4406:193:5:0::c",
-      "kavlan-8": "2001:660:4406:194:5:0::c",
-      "kavlan-9": "2001:660:4406:195:5:0::c"
+      "kavlan-1": "2001:660:4406:180:5::c",
+      "kavlan-11": "2001:660:4406:1a0:105::c",
+      "kavlan-12": "2001:660:4406:2a0:105::c",
+      "kavlan-13": "2001:660:4406:4a0:105::c",
+      "kavlan-14": "2001:660:4406:5a0:105::c",
+      "kavlan-16": "2001:660:4406:7a0:105::c",
+      "kavlan-18": "2001:660:4406:8a0:105::c",
+      "kavlan-2": "2001:660:4406:181:5::c",
+      "kavlan-20": "2001:660:4406:3a0:105::c",
+      "kavlan-21": "2001:660:4406:6a0:105::c",
+      "kavlan-3": "2001:660:4406:182:5::c",
+      "kavlan-4": "2001:660:4406:190:5::c",
+      "kavlan-5": "2001:660:4406:191:5::c",
+      "kavlan-6": "2001:660:4406:192:5::c",
+      "kavlan-7": "2001:660:4406:193:5::c",
+      "kavlan-8": "2001:660:4406:194:5::c",
+      "kavlan-9": "2001:660:4406:195:5::c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.12",
-      "ip6": "2001:660:4406:100:5:0::c",
+      "ip6": "2001:660:4406:100:5::c",
       "kavlan": true,
       "mac": "3c:fd:fe:55:ef:e0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-13.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-13.json
index ae85af488566e50771da7f1dd14bfd997542ae14..49f8a1b55c3cde93de8122921dd5f53abf42ef8a 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-13.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::d",
-      "kavlan-11": "2001:660:4406:1a0:105:0::d",
-      "kavlan-12": "2001:660:4406:2a0:105:0::d",
-      "kavlan-13": "2001:660:4406:4a0:105:0::d",
-      "kavlan-14": "2001:660:4406:5a0:105:0::d",
-      "kavlan-16": "2001:660:4406:7a0:105:0::d",
-      "kavlan-18": "2001:660:4406:8a0:105:0::d",
-      "kavlan-2": "2001:660:4406:181:5:0::d",
-      "kavlan-20": "2001:660:4406:3a0:105:0::d",
-      "kavlan-21": "2001:660:4406:6a0:105:0::d",
-      "kavlan-3": "2001:660:4406:182:5:0::d",
-      "kavlan-4": "2001:660:4406:190:5:0::d",
-      "kavlan-5": "2001:660:4406:191:5:0::d",
-      "kavlan-6": "2001:660:4406:192:5:0::d",
-      "kavlan-7": "2001:660:4406:193:5:0::d",
-      "kavlan-8": "2001:660:4406:194:5:0::d",
-      "kavlan-9": "2001:660:4406:195:5:0::d"
+      "kavlan-1": "2001:660:4406:180:5::d",
+      "kavlan-11": "2001:660:4406:1a0:105::d",
+      "kavlan-12": "2001:660:4406:2a0:105::d",
+      "kavlan-13": "2001:660:4406:4a0:105::d",
+      "kavlan-14": "2001:660:4406:5a0:105::d",
+      "kavlan-16": "2001:660:4406:7a0:105::d",
+      "kavlan-18": "2001:660:4406:8a0:105::d",
+      "kavlan-2": "2001:660:4406:181:5::d",
+      "kavlan-20": "2001:660:4406:3a0:105::d",
+      "kavlan-21": "2001:660:4406:6a0:105::d",
+      "kavlan-3": "2001:660:4406:182:5::d",
+      "kavlan-4": "2001:660:4406:190:5::d",
+      "kavlan-5": "2001:660:4406:191:5::d",
+      "kavlan-6": "2001:660:4406:192:5::d",
+      "kavlan-7": "2001:660:4406:193:5::d",
+      "kavlan-8": "2001:660:4406:194:5::d",
+      "kavlan-9": "2001:660:4406:195:5::d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.13",
-      "ip6": "2001:660:4406:100:5:0::d",
+      "ip6": "2001:660:4406:100:5::d",
       "kavlan": true,
       "mac": "3c:fd:fe:55:e3:60",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-14.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-14.json
index a7e63aadde69893e4978fc0347047bb0a2fa949e..7e87a37ba14503cae4a16c11c3adc779953cd154 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-14.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::e",
-      "kavlan-11": "2001:660:4406:1a0:105:0::e",
-      "kavlan-12": "2001:660:4406:2a0:105:0::e",
-      "kavlan-13": "2001:660:4406:4a0:105:0::e",
-      "kavlan-14": "2001:660:4406:5a0:105:0::e",
-      "kavlan-16": "2001:660:4406:7a0:105:0::e",
-      "kavlan-18": "2001:660:4406:8a0:105:0::e",
-      "kavlan-2": "2001:660:4406:181:5:0::e",
-      "kavlan-20": "2001:660:4406:3a0:105:0::e",
-      "kavlan-21": "2001:660:4406:6a0:105:0::e",
-      "kavlan-3": "2001:660:4406:182:5:0::e",
-      "kavlan-4": "2001:660:4406:190:5:0::e",
-      "kavlan-5": "2001:660:4406:191:5:0::e",
-      "kavlan-6": "2001:660:4406:192:5:0::e",
-      "kavlan-7": "2001:660:4406:193:5:0::e",
-      "kavlan-8": "2001:660:4406:194:5:0::e",
-      "kavlan-9": "2001:660:4406:195:5:0::e"
+      "kavlan-1": "2001:660:4406:180:5::e",
+      "kavlan-11": "2001:660:4406:1a0:105::e",
+      "kavlan-12": "2001:660:4406:2a0:105::e",
+      "kavlan-13": "2001:660:4406:4a0:105::e",
+      "kavlan-14": "2001:660:4406:5a0:105::e",
+      "kavlan-16": "2001:660:4406:7a0:105::e",
+      "kavlan-18": "2001:660:4406:8a0:105::e",
+      "kavlan-2": "2001:660:4406:181:5::e",
+      "kavlan-20": "2001:660:4406:3a0:105::e",
+      "kavlan-21": "2001:660:4406:6a0:105::e",
+      "kavlan-3": "2001:660:4406:182:5::e",
+      "kavlan-4": "2001:660:4406:190:5::e",
+      "kavlan-5": "2001:660:4406:191:5::e",
+      "kavlan-6": "2001:660:4406:192:5::e",
+      "kavlan-7": "2001:660:4406:193:5::e",
+      "kavlan-8": "2001:660:4406:194:5::e",
+      "kavlan-9": "2001:660:4406:195:5::e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.14",
-      "ip6": "2001:660:4406:100:5:0::e",
+      "ip6": "2001:660:4406:100:5::e",
       "kavlan": true,
       "mac": "3c:fd:fe:52:60:8c",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-15.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-15.json
index 0aa0c80f85999efd7a0e06bdf113a9cb40a376d3..7f7d5b17d2a43e50b5da969805aaa79e474ce5f9 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-15.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::f",
-      "kavlan-11": "2001:660:4406:1a0:105:0::f",
-      "kavlan-12": "2001:660:4406:2a0:105:0::f",
-      "kavlan-13": "2001:660:4406:4a0:105:0::f",
-      "kavlan-14": "2001:660:4406:5a0:105:0::f",
-      "kavlan-16": "2001:660:4406:7a0:105:0::f",
-      "kavlan-18": "2001:660:4406:8a0:105:0::f",
-      "kavlan-2": "2001:660:4406:181:5:0::f",
-      "kavlan-20": "2001:660:4406:3a0:105:0::f",
-      "kavlan-21": "2001:660:4406:6a0:105:0::f",
-      "kavlan-3": "2001:660:4406:182:5:0::f",
-      "kavlan-4": "2001:660:4406:190:5:0::f",
-      "kavlan-5": "2001:660:4406:191:5:0::f",
-      "kavlan-6": "2001:660:4406:192:5:0::f",
-      "kavlan-7": "2001:660:4406:193:5:0::f",
-      "kavlan-8": "2001:660:4406:194:5:0::f",
-      "kavlan-9": "2001:660:4406:195:5:0::f"
+      "kavlan-1": "2001:660:4406:180:5::f",
+      "kavlan-11": "2001:660:4406:1a0:105::f",
+      "kavlan-12": "2001:660:4406:2a0:105::f",
+      "kavlan-13": "2001:660:4406:4a0:105::f",
+      "kavlan-14": "2001:660:4406:5a0:105::f",
+      "kavlan-16": "2001:660:4406:7a0:105::f",
+      "kavlan-18": "2001:660:4406:8a0:105::f",
+      "kavlan-2": "2001:660:4406:181:5::f",
+      "kavlan-20": "2001:660:4406:3a0:105::f",
+      "kavlan-21": "2001:660:4406:6a0:105::f",
+      "kavlan-3": "2001:660:4406:182:5::f",
+      "kavlan-4": "2001:660:4406:190:5::f",
+      "kavlan-5": "2001:660:4406:191:5::f",
+      "kavlan-6": "2001:660:4406:192:5::f",
+      "kavlan-7": "2001:660:4406:193:5::f",
+      "kavlan-8": "2001:660:4406:194:5::f",
+      "kavlan-9": "2001:660:4406:195:5::f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.15",
-      "ip6": "2001:660:4406:100:5:0::f",
+      "ip6": "2001:660:4406:100:5::f",
       "kavlan": true,
       "mac": "3c:fd:fe:55:ed:60",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-16.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-16.json
index 8fee7e6b2b339df4731140d933e0a5bc7b623497..723af7aec66828af1b2e3203f7173ddeaca717f2 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-16.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::10",
-      "kavlan-11": "2001:660:4406:1a0:105:0::10",
-      "kavlan-12": "2001:660:4406:2a0:105:0::10",
-      "kavlan-13": "2001:660:4406:4a0:105:0::10",
-      "kavlan-14": "2001:660:4406:5a0:105:0::10",
-      "kavlan-16": "2001:660:4406:7a0:105:0::10",
-      "kavlan-18": "2001:660:4406:8a0:105:0::10",
-      "kavlan-2": "2001:660:4406:181:5:0::10",
-      "kavlan-20": "2001:660:4406:3a0:105:0::10",
-      "kavlan-21": "2001:660:4406:6a0:105:0::10",
-      "kavlan-3": "2001:660:4406:182:5:0::10",
-      "kavlan-4": "2001:660:4406:190:5:0::10",
-      "kavlan-5": "2001:660:4406:191:5:0::10",
-      "kavlan-6": "2001:660:4406:192:5:0::10",
-      "kavlan-7": "2001:660:4406:193:5:0::10",
-      "kavlan-8": "2001:660:4406:194:5:0::10",
-      "kavlan-9": "2001:660:4406:195:5:0::10"
+      "kavlan-1": "2001:660:4406:180:5::10",
+      "kavlan-11": "2001:660:4406:1a0:105::10",
+      "kavlan-12": "2001:660:4406:2a0:105::10",
+      "kavlan-13": "2001:660:4406:4a0:105::10",
+      "kavlan-14": "2001:660:4406:5a0:105::10",
+      "kavlan-16": "2001:660:4406:7a0:105::10",
+      "kavlan-18": "2001:660:4406:8a0:105::10",
+      "kavlan-2": "2001:660:4406:181:5::10",
+      "kavlan-20": "2001:660:4406:3a0:105::10",
+      "kavlan-21": "2001:660:4406:6a0:105::10",
+      "kavlan-3": "2001:660:4406:182:5::10",
+      "kavlan-4": "2001:660:4406:190:5::10",
+      "kavlan-5": "2001:660:4406:191:5::10",
+      "kavlan-6": "2001:660:4406:192:5::10",
+      "kavlan-7": "2001:660:4406:193:5::10",
+      "kavlan-8": "2001:660:4406:194:5::10",
+      "kavlan-9": "2001:660:4406:195:5::10"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.16",
-      "ip6": "2001:660:4406:100:5:0::10",
+      "ip6": "2001:660:4406:100:5::10",
       "kavlan": true,
       "mac": "3c:fd:fe:55:eb:60",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-17.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-17.json
index f1f5c1ee81067742d5c98f4f67e3015349e9b410..7105ee69f777e3a9326868f4043615284b3cc48b 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-17.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-17.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::11",
-      "kavlan-11": "2001:660:4406:1a0:105:0::11",
-      "kavlan-12": "2001:660:4406:2a0:105:0::11",
-      "kavlan-13": "2001:660:4406:4a0:105:0::11",
-      "kavlan-14": "2001:660:4406:5a0:105:0::11",
-      "kavlan-16": "2001:660:4406:7a0:105:0::11",
-      "kavlan-18": "2001:660:4406:8a0:105:0::11",
-      "kavlan-2": "2001:660:4406:181:5:0::11",
-      "kavlan-20": "2001:660:4406:3a0:105:0::11",
-      "kavlan-21": "2001:660:4406:6a0:105:0::11",
-      "kavlan-3": "2001:660:4406:182:5:0::11",
-      "kavlan-4": "2001:660:4406:190:5:0::11",
-      "kavlan-5": "2001:660:4406:191:5:0::11",
-      "kavlan-6": "2001:660:4406:192:5:0::11",
-      "kavlan-7": "2001:660:4406:193:5:0::11",
-      "kavlan-8": "2001:660:4406:194:5:0::11",
-      "kavlan-9": "2001:660:4406:195:5:0::11"
+      "kavlan-1": "2001:660:4406:180:5::11",
+      "kavlan-11": "2001:660:4406:1a0:105::11",
+      "kavlan-12": "2001:660:4406:2a0:105::11",
+      "kavlan-13": "2001:660:4406:4a0:105::11",
+      "kavlan-14": "2001:660:4406:5a0:105::11",
+      "kavlan-16": "2001:660:4406:7a0:105::11",
+      "kavlan-18": "2001:660:4406:8a0:105::11",
+      "kavlan-2": "2001:660:4406:181:5::11",
+      "kavlan-20": "2001:660:4406:3a0:105::11",
+      "kavlan-21": "2001:660:4406:6a0:105::11",
+      "kavlan-3": "2001:660:4406:182:5::11",
+      "kavlan-4": "2001:660:4406:190:5::11",
+      "kavlan-5": "2001:660:4406:191:5::11",
+      "kavlan-6": "2001:660:4406:192:5::11",
+      "kavlan-7": "2001:660:4406:193:5::11",
+      "kavlan-8": "2001:660:4406:194:5::11",
+      "kavlan-9": "2001:660:4406:195:5::11"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.17",
-      "ip6": "2001:660:4406:100:5:0::11",
+      "ip6": "2001:660:4406:100:5::11",
       "kavlan": true,
       "mac": "3c:fd:fe:54:c1:f8",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-18.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-18.json
index 0d66433d6b1c420d419d43b3ace3a4ae4b32bda8..3e6959ce276231df364cc790804ba3b3b3b43dc8 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-18.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-18.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::12",
-      "kavlan-11": "2001:660:4406:1a0:105:0::12",
-      "kavlan-12": "2001:660:4406:2a0:105:0::12",
-      "kavlan-13": "2001:660:4406:4a0:105:0::12",
-      "kavlan-14": "2001:660:4406:5a0:105:0::12",
-      "kavlan-16": "2001:660:4406:7a0:105:0::12",
-      "kavlan-18": "2001:660:4406:8a0:105:0::12",
-      "kavlan-2": "2001:660:4406:181:5:0::12",
-      "kavlan-20": "2001:660:4406:3a0:105:0::12",
-      "kavlan-21": "2001:660:4406:6a0:105:0::12",
-      "kavlan-3": "2001:660:4406:182:5:0::12",
-      "kavlan-4": "2001:660:4406:190:5:0::12",
-      "kavlan-5": "2001:660:4406:191:5:0::12",
-      "kavlan-6": "2001:660:4406:192:5:0::12",
-      "kavlan-7": "2001:660:4406:193:5:0::12",
-      "kavlan-8": "2001:660:4406:194:5:0::12",
-      "kavlan-9": "2001:660:4406:195:5:0::12"
+      "kavlan-1": "2001:660:4406:180:5::12",
+      "kavlan-11": "2001:660:4406:1a0:105::12",
+      "kavlan-12": "2001:660:4406:2a0:105::12",
+      "kavlan-13": "2001:660:4406:4a0:105::12",
+      "kavlan-14": "2001:660:4406:5a0:105::12",
+      "kavlan-16": "2001:660:4406:7a0:105::12",
+      "kavlan-18": "2001:660:4406:8a0:105::12",
+      "kavlan-2": "2001:660:4406:181:5::12",
+      "kavlan-20": "2001:660:4406:3a0:105::12",
+      "kavlan-21": "2001:660:4406:6a0:105::12",
+      "kavlan-3": "2001:660:4406:182:5::12",
+      "kavlan-4": "2001:660:4406:190:5::12",
+      "kavlan-5": "2001:660:4406:191:5::12",
+      "kavlan-6": "2001:660:4406:192:5::12",
+      "kavlan-7": "2001:660:4406:193:5::12",
+      "kavlan-8": "2001:660:4406:194:5::12",
+      "kavlan-9": "2001:660:4406:195:5::12"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.18",
-      "ip6": "2001:660:4406:100:5:0::12",
+      "ip6": "2001:660:4406:100:5::12",
       "kavlan": true,
       "mac": "3c:fd:fe:54:ac:b8",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-19.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-19.json
index 0ce3ab6eb16c8701a166f192e1136e3165d911fa..9046e1b039558203aee6a8b2beb55c1ea6fda9c8 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-19.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-19.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::13",
-      "kavlan-11": "2001:660:4406:1a0:105:0::13",
-      "kavlan-12": "2001:660:4406:2a0:105:0::13",
-      "kavlan-13": "2001:660:4406:4a0:105:0::13",
-      "kavlan-14": "2001:660:4406:5a0:105:0::13",
-      "kavlan-16": "2001:660:4406:7a0:105:0::13",
-      "kavlan-18": "2001:660:4406:8a0:105:0::13",
-      "kavlan-2": "2001:660:4406:181:5:0::13",
-      "kavlan-20": "2001:660:4406:3a0:105:0::13",
-      "kavlan-21": "2001:660:4406:6a0:105:0::13",
-      "kavlan-3": "2001:660:4406:182:5:0::13",
-      "kavlan-4": "2001:660:4406:190:5:0::13",
-      "kavlan-5": "2001:660:4406:191:5:0::13",
-      "kavlan-6": "2001:660:4406:192:5:0::13",
-      "kavlan-7": "2001:660:4406:193:5:0::13",
-      "kavlan-8": "2001:660:4406:194:5:0::13",
-      "kavlan-9": "2001:660:4406:195:5:0::13"
+      "kavlan-1": "2001:660:4406:180:5::13",
+      "kavlan-11": "2001:660:4406:1a0:105::13",
+      "kavlan-12": "2001:660:4406:2a0:105::13",
+      "kavlan-13": "2001:660:4406:4a0:105::13",
+      "kavlan-14": "2001:660:4406:5a0:105::13",
+      "kavlan-16": "2001:660:4406:7a0:105::13",
+      "kavlan-18": "2001:660:4406:8a0:105::13",
+      "kavlan-2": "2001:660:4406:181:5::13",
+      "kavlan-20": "2001:660:4406:3a0:105::13",
+      "kavlan-21": "2001:660:4406:6a0:105::13",
+      "kavlan-3": "2001:660:4406:182:5::13",
+      "kavlan-4": "2001:660:4406:190:5::13",
+      "kavlan-5": "2001:660:4406:191:5::13",
+      "kavlan-6": "2001:660:4406:192:5::13",
+      "kavlan-7": "2001:660:4406:193:5::13",
+      "kavlan-8": "2001:660:4406:194:5::13",
+      "kavlan-9": "2001:660:4406:195:5::13"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.19",
-      "ip6": "2001:660:4406:100:5:0::13",
+      "ip6": "2001:660:4406:100:5::13",
       "kavlan": true,
       "mac": "3c:fd:fe:54:ac:18",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-2.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-2.json
index 6d61022ad774ecef21ad8a501b9101105f5db92f..d741507fa02cd48ef74066f83b9d43e797a87990 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-2.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::2",
-      "kavlan-11": "2001:660:4406:1a0:105:0::2",
-      "kavlan-12": "2001:660:4406:2a0:105:0::2",
-      "kavlan-13": "2001:660:4406:4a0:105:0::2",
-      "kavlan-14": "2001:660:4406:5a0:105:0::2",
-      "kavlan-16": "2001:660:4406:7a0:105:0::2",
-      "kavlan-18": "2001:660:4406:8a0:105:0::2",
-      "kavlan-2": "2001:660:4406:181:5:0::2",
-      "kavlan-20": "2001:660:4406:3a0:105:0::2",
-      "kavlan-21": "2001:660:4406:6a0:105:0::2",
-      "kavlan-3": "2001:660:4406:182:5:0::2",
-      "kavlan-4": "2001:660:4406:190:5:0::2",
-      "kavlan-5": "2001:660:4406:191:5:0::2",
-      "kavlan-6": "2001:660:4406:192:5:0::2",
-      "kavlan-7": "2001:660:4406:193:5:0::2",
-      "kavlan-8": "2001:660:4406:194:5:0::2",
-      "kavlan-9": "2001:660:4406:195:5:0::2"
+      "kavlan-1": "2001:660:4406:180:5::2",
+      "kavlan-11": "2001:660:4406:1a0:105::2",
+      "kavlan-12": "2001:660:4406:2a0:105::2",
+      "kavlan-13": "2001:660:4406:4a0:105::2",
+      "kavlan-14": "2001:660:4406:5a0:105::2",
+      "kavlan-16": "2001:660:4406:7a0:105::2",
+      "kavlan-18": "2001:660:4406:8a0:105::2",
+      "kavlan-2": "2001:660:4406:181:5::2",
+      "kavlan-20": "2001:660:4406:3a0:105::2",
+      "kavlan-21": "2001:660:4406:6a0:105::2",
+      "kavlan-3": "2001:660:4406:182:5::2",
+      "kavlan-4": "2001:660:4406:190:5::2",
+      "kavlan-5": "2001:660:4406:191:5::2",
+      "kavlan-6": "2001:660:4406:192:5::2",
+      "kavlan-7": "2001:660:4406:193:5::2",
+      "kavlan-8": "2001:660:4406:194:5::2",
+      "kavlan-9": "2001:660:4406:195:5::2"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.2",
-      "ip6": "2001:660:4406:100:5:0::2",
+      "ip6": "2001:660:4406:100:5::2",
       "kavlan": true,
       "mac": "3c:fd:fe:55:ee:00",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-20.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-20.json
index c354db43683316b3f0ea8e230b1243bc5f037a2e..6a300b806fdd720b2d6696537697ff8cb1e9744e 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-20.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-20.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::14",
-      "kavlan-11": "2001:660:4406:1a0:105:0::14",
-      "kavlan-12": "2001:660:4406:2a0:105:0::14",
-      "kavlan-13": "2001:660:4406:4a0:105:0::14",
-      "kavlan-14": "2001:660:4406:5a0:105:0::14",
-      "kavlan-16": "2001:660:4406:7a0:105:0::14",
-      "kavlan-18": "2001:660:4406:8a0:105:0::14",
-      "kavlan-2": "2001:660:4406:181:5:0::14",
-      "kavlan-20": "2001:660:4406:3a0:105:0::14",
-      "kavlan-21": "2001:660:4406:6a0:105:0::14",
-      "kavlan-3": "2001:660:4406:182:5:0::14",
-      "kavlan-4": "2001:660:4406:190:5:0::14",
-      "kavlan-5": "2001:660:4406:191:5:0::14",
-      "kavlan-6": "2001:660:4406:192:5:0::14",
-      "kavlan-7": "2001:660:4406:193:5:0::14",
-      "kavlan-8": "2001:660:4406:194:5:0::14",
-      "kavlan-9": "2001:660:4406:195:5:0::14"
+      "kavlan-1": "2001:660:4406:180:5::14",
+      "kavlan-11": "2001:660:4406:1a0:105::14",
+      "kavlan-12": "2001:660:4406:2a0:105::14",
+      "kavlan-13": "2001:660:4406:4a0:105::14",
+      "kavlan-14": "2001:660:4406:5a0:105::14",
+      "kavlan-16": "2001:660:4406:7a0:105::14",
+      "kavlan-18": "2001:660:4406:8a0:105::14",
+      "kavlan-2": "2001:660:4406:181:5::14",
+      "kavlan-20": "2001:660:4406:3a0:105::14",
+      "kavlan-21": "2001:660:4406:6a0:105::14",
+      "kavlan-3": "2001:660:4406:182:5::14",
+      "kavlan-4": "2001:660:4406:190:5::14",
+      "kavlan-5": "2001:660:4406:191:5::14",
+      "kavlan-6": "2001:660:4406:192:5::14",
+      "kavlan-7": "2001:660:4406:193:5::14",
+      "kavlan-8": "2001:660:4406:194:5::14",
+      "kavlan-9": "2001:660:4406:195:5::14"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.20",
-      "ip6": "2001:660:4406:100:5:0::14",
+      "ip6": "2001:660:4406:100:5::14",
       "kavlan": true,
       "mac": "3c:fd:fe:54:c8:38",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-21.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-21.json
index d0fa51b9df1f8792ce2a0035a24a3bcac94bd1c2..4433ba2d9c49718d909465c9783523952b22b764 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-21.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-21.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::15",
-      "kavlan-11": "2001:660:4406:1a0:105:0::15",
-      "kavlan-12": "2001:660:4406:2a0:105:0::15",
-      "kavlan-13": "2001:660:4406:4a0:105:0::15",
-      "kavlan-14": "2001:660:4406:5a0:105:0::15",
-      "kavlan-16": "2001:660:4406:7a0:105:0::15",
-      "kavlan-18": "2001:660:4406:8a0:105:0::15",
-      "kavlan-2": "2001:660:4406:181:5:0::15",
-      "kavlan-20": "2001:660:4406:3a0:105:0::15",
-      "kavlan-21": "2001:660:4406:6a0:105:0::15",
-      "kavlan-3": "2001:660:4406:182:5:0::15",
-      "kavlan-4": "2001:660:4406:190:5:0::15",
-      "kavlan-5": "2001:660:4406:191:5:0::15",
-      "kavlan-6": "2001:660:4406:192:5:0::15",
-      "kavlan-7": "2001:660:4406:193:5:0::15",
-      "kavlan-8": "2001:660:4406:194:5:0::15",
-      "kavlan-9": "2001:660:4406:195:5:0::15"
+      "kavlan-1": "2001:660:4406:180:5::15",
+      "kavlan-11": "2001:660:4406:1a0:105::15",
+      "kavlan-12": "2001:660:4406:2a0:105::15",
+      "kavlan-13": "2001:660:4406:4a0:105::15",
+      "kavlan-14": "2001:660:4406:5a0:105::15",
+      "kavlan-16": "2001:660:4406:7a0:105::15",
+      "kavlan-18": "2001:660:4406:8a0:105::15",
+      "kavlan-2": "2001:660:4406:181:5::15",
+      "kavlan-20": "2001:660:4406:3a0:105::15",
+      "kavlan-21": "2001:660:4406:6a0:105::15",
+      "kavlan-3": "2001:660:4406:182:5::15",
+      "kavlan-4": "2001:660:4406:190:5::15",
+      "kavlan-5": "2001:660:4406:191:5::15",
+      "kavlan-6": "2001:660:4406:192:5::15",
+      "kavlan-7": "2001:660:4406:193:5::15",
+      "kavlan-8": "2001:660:4406:194:5::15",
+      "kavlan-9": "2001:660:4406:195:5::15"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.21",
-      "ip6": "2001:660:4406:100:5:0::15",
+      "ip6": "2001:660:4406:100:5::15",
       "kavlan": true,
       "mac": "3c:fd:fe:55:ee:c0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-22.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-22.json
index bc144a8be856197f5a15228f8784e7c5ae360ca2..73fcb0028f10b281b89231b9b1b384c33a7446fe 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-22.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-22.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::16",
-      "kavlan-11": "2001:660:4406:1a0:105:0::16",
-      "kavlan-12": "2001:660:4406:2a0:105:0::16",
-      "kavlan-13": "2001:660:4406:4a0:105:0::16",
-      "kavlan-14": "2001:660:4406:5a0:105:0::16",
-      "kavlan-16": "2001:660:4406:7a0:105:0::16",
-      "kavlan-18": "2001:660:4406:8a0:105:0::16",
-      "kavlan-2": "2001:660:4406:181:5:0::16",
-      "kavlan-20": "2001:660:4406:3a0:105:0::16",
-      "kavlan-21": "2001:660:4406:6a0:105:0::16",
-      "kavlan-3": "2001:660:4406:182:5:0::16",
-      "kavlan-4": "2001:660:4406:190:5:0::16",
-      "kavlan-5": "2001:660:4406:191:5:0::16",
-      "kavlan-6": "2001:660:4406:192:5:0::16",
-      "kavlan-7": "2001:660:4406:193:5:0::16",
-      "kavlan-8": "2001:660:4406:194:5:0::16",
-      "kavlan-9": "2001:660:4406:195:5:0::16"
+      "kavlan-1": "2001:660:4406:180:5::16",
+      "kavlan-11": "2001:660:4406:1a0:105::16",
+      "kavlan-12": "2001:660:4406:2a0:105::16",
+      "kavlan-13": "2001:660:4406:4a0:105::16",
+      "kavlan-14": "2001:660:4406:5a0:105::16",
+      "kavlan-16": "2001:660:4406:7a0:105::16",
+      "kavlan-18": "2001:660:4406:8a0:105::16",
+      "kavlan-2": "2001:660:4406:181:5::16",
+      "kavlan-20": "2001:660:4406:3a0:105::16",
+      "kavlan-21": "2001:660:4406:6a0:105::16",
+      "kavlan-3": "2001:660:4406:182:5::16",
+      "kavlan-4": "2001:660:4406:190:5::16",
+      "kavlan-5": "2001:660:4406:191:5::16",
+      "kavlan-6": "2001:660:4406:192:5::16",
+      "kavlan-7": "2001:660:4406:193:5::16",
+      "kavlan-8": "2001:660:4406:194:5::16",
+      "kavlan-9": "2001:660:4406:195:5::16"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.22",
-      "ip6": "2001:660:4406:100:5:0::16",
+      "ip6": "2001:660:4406:100:5::16",
       "kavlan": true,
       "mac": "3c:fd:fe:55:e7:e0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-23.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-23.json
index 39c373b21e7ac6cd46de9e0d2fa2f67549bba20f..5a34c8265ce46e10f0a5b9a3a6f3c5aaba825271 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-23.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-23.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::17",
-      "kavlan-11": "2001:660:4406:1a0:105:0::17",
-      "kavlan-12": "2001:660:4406:2a0:105:0::17",
-      "kavlan-13": "2001:660:4406:4a0:105:0::17",
-      "kavlan-14": "2001:660:4406:5a0:105:0::17",
-      "kavlan-16": "2001:660:4406:7a0:105:0::17",
-      "kavlan-18": "2001:660:4406:8a0:105:0::17",
-      "kavlan-2": "2001:660:4406:181:5:0::17",
-      "kavlan-20": "2001:660:4406:3a0:105:0::17",
-      "kavlan-21": "2001:660:4406:6a0:105:0::17",
-      "kavlan-3": "2001:660:4406:182:5:0::17",
-      "kavlan-4": "2001:660:4406:190:5:0::17",
-      "kavlan-5": "2001:660:4406:191:5:0::17",
-      "kavlan-6": "2001:660:4406:192:5:0::17",
-      "kavlan-7": "2001:660:4406:193:5:0::17",
-      "kavlan-8": "2001:660:4406:194:5:0::17",
-      "kavlan-9": "2001:660:4406:195:5:0::17"
+      "kavlan-1": "2001:660:4406:180:5::17",
+      "kavlan-11": "2001:660:4406:1a0:105::17",
+      "kavlan-12": "2001:660:4406:2a0:105::17",
+      "kavlan-13": "2001:660:4406:4a0:105::17",
+      "kavlan-14": "2001:660:4406:5a0:105::17",
+      "kavlan-16": "2001:660:4406:7a0:105::17",
+      "kavlan-18": "2001:660:4406:8a0:105::17",
+      "kavlan-2": "2001:660:4406:181:5::17",
+      "kavlan-20": "2001:660:4406:3a0:105::17",
+      "kavlan-21": "2001:660:4406:6a0:105::17",
+      "kavlan-3": "2001:660:4406:182:5::17",
+      "kavlan-4": "2001:660:4406:190:5::17",
+      "kavlan-5": "2001:660:4406:191:5::17",
+      "kavlan-6": "2001:660:4406:192:5::17",
+      "kavlan-7": "2001:660:4406:193:5::17",
+      "kavlan-8": "2001:660:4406:194:5::17",
+      "kavlan-9": "2001:660:4406:195:5::17"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.23",
-      "ip6": "2001:660:4406:100:5:0::17",
+      "ip6": "2001:660:4406:100:5::17",
       "kavlan": true,
       "mac": "3c:fd:fe:55:eb:e0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-24.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-24.json
index ca1ee777a45c7a60d7940e779a8871a01bf9a967..f957412910b6941b54490fd5f74f4f7821a9b340 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-24.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-24.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::18",
-      "kavlan-11": "2001:660:4406:1a0:105:0::18",
-      "kavlan-12": "2001:660:4406:2a0:105:0::18",
-      "kavlan-13": "2001:660:4406:4a0:105:0::18",
-      "kavlan-14": "2001:660:4406:5a0:105:0::18",
-      "kavlan-16": "2001:660:4406:7a0:105:0::18",
-      "kavlan-18": "2001:660:4406:8a0:105:0::18",
-      "kavlan-2": "2001:660:4406:181:5:0::18",
-      "kavlan-20": "2001:660:4406:3a0:105:0::18",
-      "kavlan-21": "2001:660:4406:6a0:105:0::18",
-      "kavlan-3": "2001:660:4406:182:5:0::18",
-      "kavlan-4": "2001:660:4406:190:5:0::18",
-      "kavlan-5": "2001:660:4406:191:5:0::18",
-      "kavlan-6": "2001:660:4406:192:5:0::18",
-      "kavlan-7": "2001:660:4406:193:5:0::18",
-      "kavlan-8": "2001:660:4406:194:5:0::18",
-      "kavlan-9": "2001:660:4406:195:5:0::18"
+      "kavlan-1": "2001:660:4406:180:5::18",
+      "kavlan-11": "2001:660:4406:1a0:105::18",
+      "kavlan-12": "2001:660:4406:2a0:105::18",
+      "kavlan-13": "2001:660:4406:4a0:105::18",
+      "kavlan-14": "2001:660:4406:5a0:105::18",
+      "kavlan-16": "2001:660:4406:7a0:105::18",
+      "kavlan-18": "2001:660:4406:8a0:105::18",
+      "kavlan-2": "2001:660:4406:181:5::18",
+      "kavlan-20": "2001:660:4406:3a0:105::18",
+      "kavlan-21": "2001:660:4406:6a0:105::18",
+      "kavlan-3": "2001:660:4406:182:5::18",
+      "kavlan-4": "2001:660:4406:190:5::18",
+      "kavlan-5": "2001:660:4406:191:5::18",
+      "kavlan-6": "2001:660:4406:192:5::18",
+      "kavlan-7": "2001:660:4406:193:5::18",
+      "kavlan-8": "2001:660:4406:194:5::18",
+      "kavlan-9": "2001:660:4406:195:5::18"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.24",
-      "ip6": "2001:660:4406:100:5:0::18",
+      "ip6": "2001:660:4406:100:5::18",
       "kavlan": true,
       "mac": "3c:fd:fe:55:ec:40",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-25.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-25.json
index 9516bbdf606afb3eeec305b33274db129affe3f1..9699ecada7fcecd1d82f015078a37732f024c4c5 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-25.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-25.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::19",
-      "kavlan-11": "2001:660:4406:1a0:105:0::19",
-      "kavlan-12": "2001:660:4406:2a0:105:0::19",
-      "kavlan-13": "2001:660:4406:4a0:105:0::19",
-      "kavlan-14": "2001:660:4406:5a0:105:0::19",
-      "kavlan-16": "2001:660:4406:7a0:105:0::19",
-      "kavlan-18": "2001:660:4406:8a0:105:0::19",
-      "kavlan-2": "2001:660:4406:181:5:0::19",
-      "kavlan-20": "2001:660:4406:3a0:105:0::19",
-      "kavlan-21": "2001:660:4406:6a0:105:0::19",
-      "kavlan-3": "2001:660:4406:182:5:0::19",
-      "kavlan-4": "2001:660:4406:190:5:0::19",
-      "kavlan-5": "2001:660:4406:191:5:0::19",
-      "kavlan-6": "2001:660:4406:192:5:0::19",
-      "kavlan-7": "2001:660:4406:193:5:0::19",
-      "kavlan-8": "2001:660:4406:194:5:0::19",
-      "kavlan-9": "2001:660:4406:195:5:0::19"
+      "kavlan-1": "2001:660:4406:180:5::19",
+      "kavlan-11": "2001:660:4406:1a0:105::19",
+      "kavlan-12": "2001:660:4406:2a0:105::19",
+      "kavlan-13": "2001:660:4406:4a0:105::19",
+      "kavlan-14": "2001:660:4406:5a0:105::19",
+      "kavlan-16": "2001:660:4406:7a0:105::19",
+      "kavlan-18": "2001:660:4406:8a0:105::19",
+      "kavlan-2": "2001:660:4406:181:5::19",
+      "kavlan-20": "2001:660:4406:3a0:105::19",
+      "kavlan-21": "2001:660:4406:6a0:105::19",
+      "kavlan-3": "2001:660:4406:182:5::19",
+      "kavlan-4": "2001:660:4406:190:5::19",
+      "kavlan-5": "2001:660:4406:191:5::19",
+      "kavlan-6": "2001:660:4406:192:5::19",
+      "kavlan-7": "2001:660:4406:193:5::19",
+      "kavlan-8": "2001:660:4406:194:5::19",
+      "kavlan-9": "2001:660:4406:195:5::19"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.25",
-      "ip6": "2001:660:4406:100:5:0::19",
+      "ip6": "2001:660:4406:100:5::19",
       "kavlan": true,
       "mac": "3c:fd:fe:56:11:00",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-26.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-26.json
index bf0a95ba92fd97bafce3a17fabd073b3dc22d0c8..4a9103022141b1fe751c0ab42ad6f56ba2cec80a 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-26.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-26.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::1a",
-      "kavlan-11": "2001:660:4406:1a0:105:0::1a",
-      "kavlan-12": "2001:660:4406:2a0:105:0::1a",
-      "kavlan-13": "2001:660:4406:4a0:105:0::1a",
-      "kavlan-14": "2001:660:4406:5a0:105:0::1a",
-      "kavlan-16": "2001:660:4406:7a0:105:0::1a",
-      "kavlan-18": "2001:660:4406:8a0:105:0::1a",
-      "kavlan-2": "2001:660:4406:181:5:0::1a",
-      "kavlan-20": "2001:660:4406:3a0:105:0::1a",
-      "kavlan-21": "2001:660:4406:6a0:105:0::1a",
-      "kavlan-3": "2001:660:4406:182:5:0::1a",
-      "kavlan-4": "2001:660:4406:190:5:0::1a",
-      "kavlan-5": "2001:660:4406:191:5:0::1a",
-      "kavlan-6": "2001:660:4406:192:5:0::1a",
-      "kavlan-7": "2001:660:4406:193:5:0::1a",
-      "kavlan-8": "2001:660:4406:194:5:0::1a",
-      "kavlan-9": "2001:660:4406:195:5:0::1a"
+      "kavlan-1": "2001:660:4406:180:5::1a",
+      "kavlan-11": "2001:660:4406:1a0:105::1a",
+      "kavlan-12": "2001:660:4406:2a0:105::1a",
+      "kavlan-13": "2001:660:4406:4a0:105::1a",
+      "kavlan-14": "2001:660:4406:5a0:105::1a",
+      "kavlan-16": "2001:660:4406:7a0:105::1a",
+      "kavlan-18": "2001:660:4406:8a0:105::1a",
+      "kavlan-2": "2001:660:4406:181:5::1a",
+      "kavlan-20": "2001:660:4406:3a0:105::1a",
+      "kavlan-21": "2001:660:4406:6a0:105::1a",
+      "kavlan-3": "2001:660:4406:182:5::1a",
+      "kavlan-4": "2001:660:4406:190:5::1a",
+      "kavlan-5": "2001:660:4406:191:5::1a",
+      "kavlan-6": "2001:660:4406:192:5::1a",
+      "kavlan-7": "2001:660:4406:193:5::1a",
+      "kavlan-8": "2001:660:4406:194:5::1a",
+      "kavlan-9": "2001:660:4406:195:5::1a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.26",
-      "ip6": "2001:660:4406:100:5:0::1a",
+      "ip6": "2001:660:4406:100:5::1a",
       "kavlan": true,
       "mac": "3c:fd:fe:55:dd:40",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-27.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-27.json
index 6000022431134c68b310eedde7dc866b1b2bfef1..b7835459a83547bc69b388ed2d730e0cc534dd0b 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-27.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-27.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::1b",
-      "kavlan-11": "2001:660:4406:1a0:105:0::1b",
-      "kavlan-12": "2001:660:4406:2a0:105:0::1b",
-      "kavlan-13": "2001:660:4406:4a0:105:0::1b",
-      "kavlan-14": "2001:660:4406:5a0:105:0::1b",
-      "kavlan-16": "2001:660:4406:7a0:105:0::1b",
-      "kavlan-18": "2001:660:4406:8a0:105:0::1b",
-      "kavlan-2": "2001:660:4406:181:5:0::1b",
-      "kavlan-20": "2001:660:4406:3a0:105:0::1b",
-      "kavlan-21": "2001:660:4406:6a0:105:0::1b",
-      "kavlan-3": "2001:660:4406:182:5:0::1b",
-      "kavlan-4": "2001:660:4406:190:5:0::1b",
-      "kavlan-5": "2001:660:4406:191:5:0::1b",
-      "kavlan-6": "2001:660:4406:192:5:0::1b",
-      "kavlan-7": "2001:660:4406:193:5:0::1b",
-      "kavlan-8": "2001:660:4406:194:5:0::1b",
-      "kavlan-9": "2001:660:4406:195:5:0::1b"
+      "kavlan-1": "2001:660:4406:180:5::1b",
+      "kavlan-11": "2001:660:4406:1a0:105::1b",
+      "kavlan-12": "2001:660:4406:2a0:105::1b",
+      "kavlan-13": "2001:660:4406:4a0:105::1b",
+      "kavlan-14": "2001:660:4406:5a0:105::1b",
+      "kavlan-16": "2001:660:4406:7a0:105::1b",
+      "kavlan-18": "2001:660:4406:8a0:105::1b",
+      "kavlan-2": "2001:660:4406:181:5::1b",
+      "kavlan-20": "2001:660:4406:3a0:105::1b",
+      "kavlan-21": "2001:660:4406:6a0:105::1b",
+      "kavlan-3": "2001:660:4406:182:5::1b",
+      "kavlan-4": "2001:660:4406:190:5::1b",
+      "kavlan-5": "2001:660:4406:191:5::1b",
+      "kavlan-6": "2001:660:4406:192:5::1b",
+      "kavlan-7": "2001:660:4406:193:5::1b",
+      "kavlan-8": "2001:660:4406:194:5::1b",
+      "kavlan-9": "2001:660:4406:195:5::1b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.27",
-      "ip6": "2001:660:4406:100:5:0::1b",
+      "ip6": "2001:660:4406:100:5::1b",
       "kavlan": true,
       "mac": "3c:fd:fe:55:e5:e0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-28.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-28.json
index 4f3a9da014eaf3e5042a3da1ee038cfbb151ecb1..6e5ae36f2608b7ba01cc1a451269770013181010 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-28.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-28.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::1c",
-      "kavlan-11": "2001:660:4406:1a0:105:0::1c",
-      "kavlan-12": "2001:660:4406:2a0:105:0::1c",
-      "kavlan-13": "2001:660:4406:4a0:105:0::1c",
-      "kavlan-14": "2001:660:4406:5a0:105:0::1c",
-      "kavlan-16": "2001:660:4406:7a0:105:0::1c",
-      "kavlan-18": "2001:660:4406:8a0:105:0::1c",
-      "kavlan-2": "2001:660:4406:181:5:0::1c",
-      "kavlan-20": "2001:660:4406:3a0:105:0::1c",
-      "kavlan-21": "2001:660:4406:6a0:105:0::1c",
-      "kavlan-3": "2001:660:4406:182:5:0::1c",
-      "kavlan-4": "2001:660:4406:190:5:0::1c",
-      "kavlan-5": "2001:660:4406:191:5:0::1c",
-      "kavlan-6": "2001:660:4406:192:5:0::1c",
-      "kavlan-7": "2001:660:4406:193:5:0::1c",
-      "kavlan-8": "2001:660:4406:194:5:0::1c",
-      "kavlan-9": "2001:660:4406:195:5:0::1c"
+      "kavlan-1": "2001:660:4406:180:5::1c",
+      "kavlan-11": "2001:660:4406:1a0:105::1c",
+      "kavlan-12": "2001:660:4406:2a0:105::1c",
+      "kavlan-13": "2001:660:4406:4a0:105::1c",
+      "kavlan-14": "2001:660:4406:5a0:105::1c",
+      "kavlan-16": "2001:660:4406:7a0:105::1c",
+      "kavlan-18": "2001:660:4406:8a0:105::1c",
+      "kavlan-2": "2001:660:4406:181:5::1c",
+      "kavlan-20": "2001:660:4406:3a0:105::1c",
+      "kavlan-21": "2001:660:4406:6a0:105::1c",
+      "kavlan-3": "2001:660:4406:182:5::1c",
+      "kavlan-4": "2001:660:4406:190:5::1c",
+      "kavlan-5": "2001:660:4406:191:5::1c",
+      "kavlan-6": "2001:660:4406:192:5::1c",
+      "kavlan-7": "2001:660:4406:193:5::1c",
+      "kavlan-8": "2001:660:4406:194:5::1c",
+      "kavlan-9": "2001:660:4406:195:5::1c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.28",
-      "ip6": "2001:660:4406:100:5:0::1c",
+      "ip6": "2001:660:4406:100:5::1c",
       "kavlan": true,
       "mac": "3c:fd:fe:54:2a:e0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-29.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-29.json
index 4a96e1c2194499780583fcb5a8ba5616c8deeab5..e59ab3b5c3d1a481be52c016de259ea906ddef91 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-29.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-29.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::1d",
-      "kavlan-11": "2001:660:4406:1a0:105:0::1d",
-      "kavlan-12": "2001:660:4406:2a0:105:0::1d",
-      "kavlan-13": "2001:660:4406:4a0:105:0::1d",
-      "kavlan-14": "2001:660:4406:5a0:105:0::1d",
-      "kavlan-16": "2001:660:4406:7a0:105:0::1d",
-      "kavlan-18": "2001:660:4406:8a0:105:0::1d",
-      "kavlan-2": "2001:660:4406:181:5:0::1d",
-      "kavlan-20": "2001:660:4406:3a0:105:0::1d",
-      "kavlan-21": "2001:660:4406:6a0:105:0::1d",
-      "kavlan-3": "2001:660:4406:182:5:0::1d",
-      "kavlan-4": "2001:660:4406:190:5:0::1d",
-      "kavlan-5": "2001:660:4406:191:5:0::1d",
-      "kavlan-6": "2001:660:4406:192:5:0::1d",
-      "kavlan-7": "2001:660:4406:193:5:0::1d",
-      "kavlan-8": "2001:660:4406:194:5:0::1d",
-      "kavlan-9": "2001:660:4406:195:5:0::1d"
+      "kavlan-1": "2001:660:4406:180:5::1d",
+      "kavlan-11": "2001:660:4406:1a0:105::1d",
+      "kavlan-12": "2001:660:4406:2a0:105::1d",
+      "kavlan-13": "2001:660:4406:4a0:105::1d",
+      "kavlan-14": "2001:660:4406:5a0:105::1d",
+      "kavlan-16": "2001:660:4406:7a0:105::1d",
+      "kavlan-18": "2001:660:4406:8a0:105::1d",
+      "kavlan-2": "2001:660:4406:181:5::1d",
+      "kavlan-20": "2001:660:4406:3a0:105::1d",
+      "kavlan-21": "2001:660:4406:6a0:105::1d",
+      "kavlan-3": "2001:660:4406:182:5::1d",
+      "kavlan-4": "2001:660:4406:190:5::1d",
+      "kavlan-5": "2001:660:4406:191:5::1d",
+      "kavlan-6": "2001:660:4406:192:5::1d",
+      "kavlan-7": "2001:660:4406:193:5::1d",
+      "kavlan-8": "2001:660:4406:194:5::1d",
+      "kavlan-9": "2001:660:4406:195:5::1d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.29",
-      "ip6": "2001:660:4406:100:5:0::1d",
+      "ip6": "2001:660:4406:100:5::1d",
       "kavlan": true,
       "mac": "3c:fd:fe:55:dd:c0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-3.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-3.json
index bfdd1da42a752204538ff09cafb6a2ebd23cf3aa..93071e2dd732b5f73905ccf56bd12b27720d32ba 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-3.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::3",
-      "kavlan-11": "2001:660:4406:1a0:105:0::3",
-      "kavlan-12": "2001:660:4406:2a0:105:0::3",
-      "kavlan-13": "2001:660:4406:4a0:105:0::3",
-      "kavlan-14": "2001:660:4406:5a0:105:0::3",
-      "kavlan-16": "2001:660:4406:7a0:105:0::3",
-      "kavlan-18": "2001:660:4406:8a0:105:0::3",
-      "kavlan-2": "2001:660:4406:181:5:0::3",
-      "kavlan-20": "2001:660:4406:3a0:105:0::3",
-      "kavlan-21": "2001:660:4406:6a0:105:0::3",
-      "kavlan-3": "2001:660:4406:182:5:0::3",
-      "kavlan-4": "2001:660:4406:190:5:0::3",
-      "kavlan-5": "2001:660:4406:191:5:0::3",
-      "kavlan-6": "2001:660:4406:192:5:0::3",
-      "kavlan-7": "2001:660:4406:193:5:0::3",
-      "kavlan-8": "2001:660:4406:194:5:0::3",
-      "kavlan-9": "2001:660:4406:195:5:0::3"
+      "kavlan-1": "2001:660:4406:180:5::3",
+      "kavlan-11": "2001:660:4406:1a0:105::3",
+      "kavlan-12": "2001:660:4406:2a0:105::3",
+      "kavlan-13": "2001:660:4406:4a0:105::3",
+      "kavlan-14": "2001:660:4406:5a0:105::3",
+      "kavlan-16": "2001:660:4406:7a0:105::3",
+      "kavlan-18": "2001:660:4406:8a0:105::3",
+      "kavlan-2": "2001:660:4406:181:5::3",
+      "kavlan-20": "2001:660:4406:3a0:105::3",
+      "kavlan-21": "2001:660:4406:6a0:105::3",
+      "kavlan-3": "2001:660:4406:182:5::3",
+      "kavlan-4": "2001:660:4406:190:5::3",
+      "kavlan-5": "2001:660:4406:191:5::3",
+      "kavlan-6": "2001:660:4406:192:5::3",
+      "kavlan-7": "2001:660:4406:193:5::3",
+      "kavlan-8": "2001:660:4406:194:5::3",
+      "kavlan-9": "2001:660:4406:195:5::3"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.3",
-      "ip6": "2001:660:4406:100:5:0::3",
+      "ip6": "2001:660:4406:100:5::3",
       "kavlan": true,
       "mac": "3c:fd:fe:55:ee:e0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-30.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-30.json
index 4e2a15ab8aaaf3499694e9009658ef24f98acb29..9a55f6f5b42411d48d9077d7c4f693a14fdd9a8d 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-30.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-30.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::1e",
-      "kavlan-11": "2001:660:4406:1a0:105:0::1e",
-      "kavlan-12": "2001:660:4406:2a0:105:0::1e",
-      "kavlan-13": "2001:660:4406:4a0:105:0::1e",
-      "kavlan-14": "2001:660:4406:5a0:105:0::1e",
-      "kavlan-16": "2001:660:4406:7a0:105:0::1e",
-      "kavlan-18": "2001:660:4406:8a0:105:0::1e",
-      "kavlan-2": "2001:660:4406:181:5:0::1e",
-      "kavlan-20": "2001:660:4406:3a0:105:0::1e",
-      "kavlan-21": "2001:660:4406:6a0:105:0::1e",
-      "kavlan-3": "2001:660:4406:182:5:0::1e",
-      "kavlan-4": "2001:660:4406:190:5:0::1e",
-      "kavlan-5": "2001:660:4406:191:5:0::1e",
-      "kavlan-6": "2001:660:4406:192:5:0::1e",
-      "kavlan-7": "2001:660:4406:193:5:0::1e",
-      "kavlan-8": "2001:660:4406:194:5:0::1e",
-      "kavlan-9": "2001:660:4406:195:5:0::1e"
+      "kavlan-1": "2001:660:4406:180:5::1e",
+      "kavlan-11": "2001:660:4406:1a0:105::1e",
+      "kavlan-12": "2001:660:4406:2a0:105::1e",
+      "kavlan-13": "2001:660:4406:4a0:105::1e",
+      "kavlan-14": "2001:660:4406:5a0:105::1e",
+      "kavlan-16": "2001:660:4406:7a0:105::1e",
+      "kavlan-18": "2001:660:4406:8a0:105::1e",
+      "kavlan-2": "2001:660:4406:181:5::1e",
+      "kavlan-20": "2001:660:4406:3a0:105::1e",
+      "kavlan-21": "2001:660:4406:6a0:105::1e",
+      "kavlan-3": "2001:660:4406:182:5::1e",
+      "kavlan-4": "2001:660:4406:190:5::1e",
+      "kavlan-5": "2001:660:4406:191:5::1e",
+      "kavlan-6": "2001:660:4406:192:5::1e",
+      "kavlan-7": "2001:660:4406:193:5::1e",
+      "kavlan-8": "2001:660:4406:194:5::1e",
+      "kavlan-9": "2001:660:4406:195:5::1e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.30",
-      "ip6": "2001:660:4406:100:5:0::1e",
+      "ip6": "2001:660:4406:100:5::1e",
       "kavlan": true,
       "mac": "3c:fd:fe:55:e1:a0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-31.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-31.json
index fed8d4bf7f4c254151ab823666d4789e85583493..cfacabd7ab884fa7612de41a7c8b90207e066507 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-31.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-31.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::1f",
-      "kavlan-11": "2001:660:4406:1a0:105:0::1f",
-      "kavlan-12": "2001:660:4406:2a0:105:0::1f",
-      "kavlan-13": "2001:660:4406:4a0:105:0::1f",
-      "kavlan-14": "2001:660:4406:5a0:105:0::1f",
-      "kavlan-16": "2001:660:4406:7a0:105:0::1f",
-      "kavlan-18": "2001:660:4406:8a0:105:0::1f",
-      "kavlan-2": "2001:660:4406:181:5:0::1f",
-      "kavlan-20": "2001:660:4406:3a0:105:0::1f",
-      "kavlan-21": "2001:660:4406:6a0:105:0::1f",
-      "kavlan-3": "2001:660:4406:182:5:0::1f",
-      "kavlan-4": "2001:660:4406:190:5:0::1f",
-      "kavlan-5": "2001:660:4406:191:5:0::1f",
-      "kavlan-6": "2001:660:4406:192:5:0::1f",
-      "kavlan-7": "2001:660:4406:193:5:0::1f",
-      "kavlan-8": "2001:660:4406:194:5:0::1f",
-      "kavlan-9": "2001:660:4406:195:5:0::1f"
+      "kavlan-1": "2001:660:4406:180:5::1f",
+      "kavlan-11": "2001:660:4406:1a0:105::1f",
+      "kavlan-12": "2001:660:4406:2a0:105::1f",
+      "kavlan-13": "2001:660:4406:4a0:105::1f",
+      "kavlan-14": "2001:660:4406:5a0:105::1f",
+      "kavlan-16": "2001:660:4406:7a0:105::1f",
+      "kavlan-18": "2001:660:4406:8a0:105::1f",
+      "kavlan-2": "2001:660:4406:181:5::1f",
+      "kavlan-20": "2001:660:4406:3a0:105::1f",
+      "kavlan-21": "2001:660:4406:6a0:105::1f",
+      "kavlan-3": "2001:660:4406:182:5::1f",
+      "kavlan-4": "2001:660:4406:190:5::1f",
+      "kavlan-5": "2001:660:4406:191:5::1f",
+      "kavlan-6": "2001:660:4406:192:5::1f",
+      "kavlan-7": "2001:660:4406:193:5::1f",
+      "kavlan-8": "2001:660:4406:194:5::1f",
+      "kavlan-9": "2001:660:4406:195:5::1f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.31",
-      "ip6": "2001:660:4406:100:5:0::1f",
+      "ip6": "2001:660:4406:100:5::1f",
       "kavlan": true,
       "mac": "3c:fd:fe:54:c8:b8",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-32.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-32.json
index f21be14194e58698f10fa34081e633f5dc3d557e..ef80b5cacee3deb1c9f20bb5bb173fc5d9ff3f40 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-32.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-32.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::20",
-      "kavlan-11": "2001:660:4406:1a0:105:0::20",
-      "kavlan-12": "2001:660:4406:2a0:105:0::20",
-      "kavlan-13": "2001:660:4406:4a0:105:0::20",
-      "kavlan-14": "2001:660:4406:5a0:105:0::20",
-      "kavlan-16": "2001:660:4406:7a0:105:0::20",
-      "kavlan-18": "2001:660:4406:8a0:105:0::20",
-      "kavlan-2": "2001:660:4406:181:5:0::20",
-      "kavlan-20": "2001:660:4406:3a0:105:0::20",
-      "kavlan-21": "2001:660:4406:6a0:105:0::20",
-      "kavlan-3": "2001:660:4406:182:5:0::20",
-      "kavlan-4": "2001:660:4406:190:5:0::20",
-      "kavlan-5": "2001:660:4406:191:5:0::20",
-      "kavlan-6": "2001:660:4406:192:5:0::20",
-      "kavlan-7": "2001:660:4406:193:5:0::20",
-      "kavlan-8": "2001:660:4406:194:5:0::20",
-      "kavlan-9": "2001:660:4406:195:5:0::20"
+      "kavlan-1": "2001:660:4406:180:5::20",
+      "kavlan-11": "2001:660:4406:1a0:105::20",
+      "kavlan-12": "2001:660:4406:2a0:105::20",
+      "kavlan-13": "2001:660:4406:4a0:105::20",
+      "kavlan-14": "2001:660:4406:5a0:105::20",
+      "kavlan-16": "2001:660:4406:7a0:105::20",
+      "kavlan-18": "2001:660:4406:8a0:105::20",
+      "kavlan-2": "2001:660:4406:181:5::20",
+      "kavlan-20": "2001:660:4406:3a0:105::20",
+      "kavlan-21": "2001:660:4406:6a0:105::20",
+      "kavlan-3": "2001:660:4406:182:5::20",
+      "kavlan-4": "2001:660:4406:190:5::20",
+      "kavlan-5": "2001:660:4406:191:5::20",
+      "kavlan-6": "2001:660:4406:192:5::20",
+      "kavlan-7": "2001:660:4406:193:5::20",
+      "kavlan-8": "2001:660:4406:194:5::20",
+      "kavlan-9": "2001:660:4406:195:5::20"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.32",
-      "ip6": "2001:660:4406:100:5:0::20",
+      "ip6": "2001:660:4406:100:5::20",
       "kavlan": true,
       "mac": "3c:fd:fe:54:c3:d8",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-4.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-4.json
index 0079ea24790c8ee8659b0bd51a04a931a9abd95d..60da53485504c658dc08f2a8ea726c444d9958a2 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-4.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::4",
-      "kavlan-11": "2001:660:4406:1a0:105:0::4",
-      "kavlan-12": "2001:660:4406:2a0:105:0::4",
-      "kavlan-13": "2001:660:4406:4a0:105:0::4",
-      "kavlan-14": "2001:660:4406:5a0:105:0::4",
-      "kavlan-16": "2001:660:4406:7a0:105:0::4",
-      "kavlan-18": "2001:660:4406:8a0:105:0::4",
-      "kavlan-2": "2001:660:4406:181:5:0::4",
-      "kavlan-20": "2001:660:4406:3a0:105:0::4",
-      "kavlan-21": "2001:660:4406:6a0:105:0::4",
-      "kavlan-3": "2001:660:4406:182:5:0::4",
-      "kavlan-4": "2001:660:4406:190:5:0::4",
-      "kavlan-5": "2001:660:4406:191:5:0::4",
-      "kavlan-6": "2001:660:4406:192:5:0::4",
-      "kavlan-7": "2001:660:4406:193:5:0::4",
-      "kavlan-8": "2001:660:4406:194:5:0::4",
-      "kavlan-9": "2001:660:4406:195:5:0::4"
+      "kavlan-1": "2001:660:4406:180:5::4",
+      "kavlan-11": "2001:660:4406:1a0:105::4",
+      "kavlan-12": "2001:660:4406:2a0:105::4",
+      "kavlan-13": "2001:660:4406:4a0:105::4",
+      "kavlan-14": "2001:660:4406:5a0:105::4",
+      "kavlan-16": "2001:660:4406:7a0:105::4",
+      "kavlan-18": "2001:660:4406:8a0:105::4",
+      "kavlan-2": "2001:660:4406:181:5::4",
+      "kavlan-20": "2001:660:4406:3a0:105::4",
+      "kavlan-21": "2001:660:4406:6a0:105::4",
+      "kavlan-3": "2001:660:4406:182:5::4",
+      "kavlan-4": "2001:660:4406:190:5::4",
+      "kavlan-5": "2001:660:4406:191:5::4",
+      "kavlan-6": "2001:660:4406:192:5::4",
+      "kavlan-7": "2001:660:4406:193:5::4",
+      "kavlan-8": "2001:660:4406:194:5::4",
+      "kavlan-9": "2001:660:4406:195:5::4"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.4",
-      "ip6": "2001:660:4406:100:5:0::4",
+      "ip6": "2001:660:4406:100:5::4",
       "kavlan": true,
       "mac": "3c:fd:fe:55:ed:c0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-5.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-5.json
index 9b3f33da26ee94536707d487c9e4f81a33ab5261..e15de9d0c436135e23a33338c59c0b678236fa61 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-5.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::5",
-      "kavlan-11": "2001:660:4406:1a0:105:0::5",
-      "kavlan-12": "2001:660:4406:2a0:105:0::5",
-      "kavlan-13": "2001:660:4406:4a0:105:0::5",
-      "kavlan-14": "2001:660:4406:5a0:105:0::5",
-      "kavlan-16": "2001:660:4406:7a0:105:0::5",
-      "kavlan-18": "2001:660:4406:8a0:105:0::5",
-      "kavlan-2": "2001:660:4406:181:5:0::5",
-      "kavlan-20": "2001:660:4406:3a0:105:0::5",
-      "kavlan-21": "2001:660:4406:6a0:105:0::5",
-      "kavlan-3": "2001:660:4406:182:5:0::5",
-      "kavlan-4": "2001:660:4406:190:5:0::5",
-      "kavlan-5": "2001:660:4406:191:5:0::5",
-      "kavlan-6": "2001:660:4406:192:5:0::5",
-      "kavlan-7": "2001:660:4406:193:5:0::5",
-      "kavlan-8": "2001:660:4406:194:5:0::5",
-      "kavlan-9": "2001:660:4406:195:5:0::5"
+      "kavlan-1": "2001:660:4406:180:5::5",
+      "kavlan-11": "2001:660:4406:1a0:105::5",
+      "kavlan-12": "2001:660:4406:2a0:105::5",
+      "kavlan-13": "2001:660:4406:4a0:105::5",
+      "kavlan-14": "2001:660:4406:5a0:105::5",
+      "kavlan-16": "2001:660:4406:7a0:105::5",
+      "kavlan-18": "2001:660:4406:8a0:105::5",
+      "kavlan-2": "2001:660:4406:181:5::5",
+      "kavlan-20": "2001:660:4406:3a0:105::5",
+      "kavlan-21": "2001:660:4406:6a0:105::5",
+      "kavlan-3": "2001:660:4406:182:5::5",
+      "kavlan-4": "2001:660:4406:190:5::5",
+      "kavlan-5": "2001:660:4406:191:5::5",
+      "kavlan-6": "2001:660:4406:192:5::5",
+      "kavlan-7": "2001:660:4406:193:5::5",
+      "kavlan-8": "2001:660:4406:194:5::5",
+      "kavlan-9": "2001:660:4406:195:5::5"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.5",
-      "ip6": "2001:660:4406:100:5:0::5",
+      "ip6": "2001:660:4406:100:5::5",
       "kavlan": true,
       "mac": "3c:fd:fe:54:c8:58",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-6.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-6.json
index b550fb4993d91f7ef5e0316cd526e3511b01d003..97e6ecab7254357f12e0f3ca5cb263aa23c04274 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-6.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::6",
-      "kavlan-11": "2001:660:4406:1a0:105:0::6",
-      "kavlan-12": "2001:660:4406:2a0:105:0::6",
-      "kavlan-13": "2001:660:4406:4a0:105:0::6",
-      "kavlan-14": "2001:660:4406:5a0:105:0::6",
-      "kavlan-16": "2001:660:4406:7a0:105:0::6",
-      "kavlan-18": "2001:660:4406:8a0:105:0::6",
-      "kavlan-2": "2001:660:4406:181:5:0::6",
-      "kavlan-20": "2001:660:4406:3a0:105:0::6",
-      "kavlan-21": "2001:660:4406:6a0:105:0::6",
-      "kavlan-3": "2001:660:4406:182:5:0::6",
-      "kavlan-4": "2001:660:4406:190:5:0::6",
-      "kavlan-5": "2001:660:4406:191:5:0::6",
-      "kavlan-6": "2001:660:4406:192:5:0::6",
-      "kavlan-7": "2001:660:4406:193:5:0::6",
-      "kavlan-8": "2001:660:4406:194:5:0::6",
-      "kavlan-9": "2001:660:4406:195:5:0::6"
+      "kavlan-1": "2001:660:4406:180:5::6",
+      "kavlan-11": "2001:660:4406:1a0:105::6",
+      "kavlan-12": "2001:660:4406:2a0:105::6",
+      "kavlan-13": "2001:660:4406:4a0:105::6",
+      "kavlan-14": "2001:660:4406:5a0:105::6",
+      "kavlan-16": "2001:660:4406:7a0:105::6",
+      "kavlan-18": "2001:660:4406:8a0:105::6",
+      "kavlan-2": "2001:660:4406:181:5::6",
+      "kavlan-20": "2001:660:4406:3a0:105::6",
+      "kavlan-21": "2001:660:4406:6a0:105::6",
+      "kavlan-3": "2001:660:4406:182:5::6",
+      "kavlan-4": "2001:660:4406:190:5::6",
+      "kavlan-5": "2001:660:4406:191:5::6",
+      "kavlan-6": "2001:660:4406:192:5::6",
+      "kavlan-7": "2001:660:4406:193:5::6",
+      "kavlan-8": "2001:660:4406:194:5::6",
+      "kavlan-9": "2001:660:4406:195:5::6"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.6",
-      "ip6": "2001:660:4406:100:5:0::6",
+      "ip6": "2001:660:4406:100:5::6",
       "kavlan": true,
       "mac": "3c:fd:fe:54:ac:78",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-7.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-7.json
index 98c64ae30bbbee546fcd95c2ebb9e74f35916e77..045095d86cc3368bff660573d97c7bd8780ecbda 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-7.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::7",
-      "kavlan-11": "2001:660:4406:1a0:105:0::7",
-      "kavlan-12": "2001:660:4406:2a0:105:0::7",
-      "kavlan-13": "2001:660:4406:4a0:105:0::7",
-      "kavlan-14": "2001:660:4406:5a0:105:0::7",
-      "kavlan-16": "2001:660:4406:7a0:105:0::7",
-      "kavlan-18": "2001:660:4406:8a0:105:0::7",
-      "kavlan-2": "2001:660:4406:181:5:0::7",
-      "kavlan-20": "2001:660:4406:3a0:105:0::7",
-      "kavlan-21": "2001:660:4406:6a0:105:0::7",
-      "kavlan-3": "2001:660:4406:182:5:0::7",
-      "kavlan-4": "2001:660:4406:190:5:0::7",
-      "kavlan-5": "2001:660:4406:191:5:0::7",
-      "kavlan-6": "2001:660:4406:192:5:0::7",
-      "kavlan-7": "2001:660:4406:193:5:0::7",
-      "kavlan-8": "2001:660:4406:194:5:0::7",
-      "kavlan-9": "2001:660:4406:195:5:0::7"
+      "kavlan-1": "2001:660:4406:180:5::7",
+      "kavlan-11": "2001:660:4406:1a0:105::7",
+      "kavlan-12": "2001:660:4406:2a0:105::7",
+      "kavlan-13": "2001:660:4406:4a0:105::7",
+      "kavlan-14": "2001:660:4406:5a0:105::7",
+      "kavlan-16": "2001:660:4406:7a0:105::7",
+      "kavlan-18": "2001:660:4406:8a0:105::7",
+      "kavlan-2": "2001:660:4406:181:5::7",
+      "kavlan-20": "2001:660:4406:3a0:105::7",
+      "kavlan-21": "2001:660:4406:6a0:105::7",
+      "kavlan-3": "2001:660:4406:182:5::7",
+      "kavlan-4": "2001:660:4406:190:5::7",
+      "kavlan-5": "2001:660:4406:191:5::7",
+      "kavlan-6": "2001:660:4406:192:5::7",
+      "kavlan-7": "2001:660:4406:193:5::7",
+      "kavlan-8": "2001:660:4406:194:5::7",
+      "kavlan-9": "2001:660:4406:195:5::7"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.7",
-      "ip6": "2001:660:4406:100:5:0::7",
+      "ip6": "2001:660:4406:100:5::7",
       "kavlan": true,
       "mac": "3c:fd:fe:54:79:20",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-8.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-8.json
index ca41410e48ed1bb4f67b077d55dab5d64f477a16..cfd2e2c186812ecb2930d09d26357279c296edcb 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-8.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::8",
-      "kavlan-11": "2001:660:4406:1a0:105:0::8",
-      "kavlan-12": "2001:660:4406:2a0:105:0::8",
-      "kavlan-13": "2001:660:4406:4a0:105:0::8",
-      "kavlan-14": "2001:660:4406:5a0:105:0::8",
-      "kavlan-16": "2001:660:4406:7a0:105:0::8",
-      "kavlan-18": "2001:660:4406:8a0:105:0::8",
-      "kavlan-2": "2001:660:4406:181:5:0::8",
-      "kavlan-20": "2001:660:4406:3a0:105:0::8",
-      "kavlan-21": "2001:660:4406:6a0:105:0::8",
-      "kavlan-3": "2001:660:4406:182:5:0::8",
-      "kavlan-4": "2001:660:4406:190:5:0::8",
-      "kavlan-5": "2001:660:4406:191:5:0::8",
-      "kavlan-6": "2001:660:4406:192:5:0::8",
-      "kavlan-7": "2001:660:4406:193:5:0::8",
-      "kavlan-8": "2001:660:4406:194:5:0::8",
-      "kavlan-9": "2001:660:4406:195:5:0::8"
+      "kavlan-1": "2001:660:4406:180:5::8",
+      "kavlan-11": "2001:660:4406:1a0:105::8",
+      "kavlan-12": "2001:660:4406:2a0:105::8",
+      "kavlan-13": "2001:660:4406:4a0:105::8",
+      "kavlan-14": "2001:660:4406:5a0:105::8",
+      "kavlan-16": "2001:660:4406:7a0:105::8",
+      "kavlan-18": "2001:660:4406:8a0:105::8",
+      "kavlan-2": "2001:660:4406:181:5::8",
+      "kavlan-20": "2001:660:4406:3a0:105::8",
+      "kavlan-21": "2001:660:4406:6a0:105::8",
+      "kavlan-3": "2001:660:4406:182:5::8",
+      "kavlan-4": "2001:660:4406:190:5::8",
+      "kavlan-5": "2001:660:4406:191:5::8",
+      "kavlan-6": "2001:660:4406:192:5::8",
+      "kavlan-7": "2001:660:4406:193:5::8",
+      "kavlan-8": "2001:660:4406:194:5::8",
+      "kavlan-9": "2001:660:4406:195:5::8"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.8",
-      "ip6": "2001:660:4406:100:5:0::8",
+      "ip6": "2001:660:4406:100:5::8",
       "kavlan": true,
       "mac": "3c:fd:fe:54:a6:58",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-9.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-9.json
index 28fcf0251a5f8a416478ee25a6aae33484a9735b..b9bcfd8b4309e91c739bc7a0c6e0c4d812a7f7b8 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-9.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5:0::9",
-      "kavlan-11": "2001:660:4406:1a0:105:0::9",
-      "kavlan-12": "2001:660:4406:2a0:105:0::9",
-      "kavlan-13": "2001:660:4406:4a0:105:0::9",
-      "kavlan-14": "2001:660:4406:5a0:105:0::9",
-      "kavlan-16": "2001:660:4406:7a0:105:0::9",
-      "kavlan-18": "2001:660:4406:8a0:105:0::9",
-      "kavlan-2": "2001:660:4406:181:5:0::9",
-      "kavlan-20": "2001:660:4406:3a0:105:0::9",
-      "kavlan-21": "2001:660:4406:6a0:105:0::9",
-      "kavlan-3": "2001:660:4406:182:5:0::9",
-      "kavlan-4": "2001:660:4406:190:5:0::9",
-      "kavlan-5": "2001:660:4406:191:5:0::9",
-      "kavlan-6": "2001:660:4406:192:5:0::9",
-      "kavlan-7": "2001:660:4406:193:5:0::9",
-      "kavlan-8": "2001:660:4406:194:5:0::9",
-      "kavlan-9": "2001:660:4406:195:5:0::9"
+      "kavlan-1": "2001:660:4406:180:5::9",
+      "kavlan-11": "2001:660:4406:1a0:105::9",
+      "kavlan-12": "2001:660:4406:2a0:105::9",
+      "kavlan-13": "2001:660:4406:4a0:105::9",
+      "kavlan-14": "2001:660:4406:5a0:105::9",
+      "kavlan-16": "2001:660:4406:7a0:105::9",
+      "kavlan-18": "2001:660:4406:8a0:105::9",
+      "kavlan-2": "2001:660:4406:181:5::9",
+      "kavlan-20": "2001:660:4406:3a0:105::9",
+      "kavlan-21": "2001:660:4406:6a0:105::9",
+      "kavlan-3": "2001:660:4406:182:5::9",
+      "kavlan-4": "2001:660:4406:190:5::9",
+      "kavlan-5": "2001:660:4406:191:5::9",
+      "kavlan-6": "2001:660:4406:192:5::9",
+      "kavlan-7": "2001:660:4406:193:5::9",
+      "kavlan-8": "2001:660:4406:194:5::9",
+      "kavlan-9": "2001:660:4406:195:5::9"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.20.9",
-      "ip6": "2001:660:4406:100:5:0::9",
+      "ip6": "2001:660:4406:100:5::9",
       "kavlan": true,
       "mac": "3c:fd:fe:55:df:00",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-1.json b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-1.json
index 9e4da1d6621119898ca472de672c8ee5a04087d8..a361544db8e96447a8e56c2568f7f285dd3b59d3 100644
--- a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-1.json
+++ b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-1.json
@@ -78,23 +78,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:9:0::1",
-      "kavlan-11": "2001:660:4406:1a0:109:0::1",
-      "kavlan-12": "2001:660:4406:2a0:109:0::1",
-      "kavlan-13": "2001:660:4406:4a0:109:0::1",
-      "kavlan-14": "2001:660:4406:5a0:109:0::1",
-      "kavlan-16": "2001:660:4406:7a0:109:0::1",
-      "kavlan-18": "2001:660:4406:8a0:109:0::1",
-      "kavlan-2": "2001:660:4406:181:9:0::1",
-      "kavlan-20": "2001:660:4406:3a0:109:0::1",
-      "kavlan-21": "2001:660:4406:6a0:109:0::1",
-      "kavlan-3": "2001:660:4406:182:9:0::1",
-      "kavlan-4": "2001:660:4406:190:9:0::1",
-      "kavlan-5": "2001:660:4406:191:9:0::1",
-      "kavlan-6": "2001:660:4406:192:9:0::1",
-      "kavlan-7": "2001:660:4406:193:9:0::1",
-      "kavlan-8": "2001:660:4406:194:9:0::1",
-      "kavlan-9": "2001:660:4406:195:9:0::1"
+      "kavlan-1": "2001:660:4406:180:9::1",
+      "kavlan-11": "2001:660:4406:1a0:109::1",
+      "kavlan-12": "2001:660:4406:2a0:109::1",
+      "kavlan-13": "2001:660:4406:4a0:109::1",
+      "kavlan-14": "2001:660:4406:5a0:109::1",
+      "kavlan-16": "2001:660:4406:7a0:109::1",
+      "kavlan-18": "2001:660:4406:8a0:109::1",
+      "kavlan-2": "2001:660:4406:181:9::1",
+      "kavlan-20": "2001:660:4406:3a0:109::1",
+      "kavlan-21": "2001:660:4406:6a0:109::1",
+      "kavlan-3": "2001:660:4406:182:9::1",
+      "kavlan-4": "2001:660:4406:190:9::1",
+      "kavlan-5": "2001:660:4406:191:9::1",
+      "kavlan-6": "2001:660:4406:192:9::1",
+      "kavlan-7": "2001:660:4406:193:9::1",
+      "kavlan-8": "2001:660:4406:194:9::1",
+      "kavlan-9": "2001:660:4406:195:9::1"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "bc 7.10.4",
       "interface": "Ethernet",
       "ip": "172.16.24.1",
-      "ip6": "2001:660:4406:100:9:0::1",
+      "ip6": "2001:660:4406:100:9::1",
       "kavlan": true,
       "mac": "98:be:94:68:1e:54",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-10.json b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-10.json
index c9640851439b66be4c7371ad8b33ce08a2ebec4a..6754173d2d1508545a11607e0671c7b569826fd6 100644
--- a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-10.json
+++ b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-10.json
@@ -78,23 +78,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:9:0::a",
-      "kavlan-11": "2001:660:4406:1a0:109:0::a",
-      "kavlan-12": "2001:660:4406:2a0:109:0::a",
-      "kavlan-13": "2001:660:4406:4a0:109:0::a",
-      "kavlan-14": "2001:660:4406:5a0:109:0::a",
-      "kavlan-16": "2001:660:4406:7a0:109:0::a",
-      "kavlan-18": "2001:660:4406:8a0:109:0::a",
-      "kavlan-2": "2001:660:4406:181:9:0::a",
-      "kavlan-20": "2001:660:4406:3a0:109:0::a",
-      "kavlan-21": "2001:660:4406:6a0:109:0::a",
-      "kavlan-3": "2001:660:4406:182:9:0::a",
-      "kavlan-4": "2001:660:4406:190:9:0::a",
-      "kavlan-5": "2001:660:4406:191:9:0::a",
-      "kavlan-6": "2001:660:4406:192:9:0::a",
-      "kavlan-7": "2001:660:4406:193:9:0::a",
-      "kavlan-8": "2001:660:4406:194:9:0::a",
-      "kavlan-9": "2001:660:4406:195:9:0::a"
+      "kavlan-1": "2001:660:4406:180:9::a",
+      "kavlan-11": "2001:660:4406:1a0:109::a",
+      "kavlan-12": "2001:660:4406:2a0:109::a",
+      "kavlan-13": "2001:660:4406:4a0:109::a",
+      "kavlan-14": "2001:660:4406:5a0:109::a",
+      "kavlan-16": "2001:660:4406:7a0:109::a",
+      "kavlan-18": "2001:660:4406:8a0:109::a",
+      "kavlan-2": "2001:660:4406:181:9::a",
+      "kavlan-20": "2001:660:4406:3a0:109::a",
+      "kavlan-21": "2001:660:4406:6a0:109::a",
+      "kavlan-3": "2001:660:4406:182:9::a",
+      "kavlan-4": "2001:660:4406:190:9::a",
+      "kavlan-5": "2001:660:4406:191:9::a",
+      "kavlan-6": "2001:660:4406:192:9::a",
+      "kavlan-7": "2001:660:4406:193:9::a",
+      "kavlan-8": "2001:660:4406:194:9::a",
+      "kavlan-9": "2001:660:4406:195:9::a"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "bc 7.10.4",
       "interface": "Ethernet",
       "ip": "172.16.24.10",
-      "ip6": "2001:660:4406:100:9:0::a",
+      "ip6": "2001:660:4406:100:9::a",
       "kavlan": true,
       "mac": "98:be:94:68:7a:44",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-11.json b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-11.json
index 32fa2d123aa7b0c8715c5814824453506be7aed1..8cf32a5e1f05c8dde4d7ff71afd80f4d44238ea9 100644
--- a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-11.json
+++ b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-11.json
@@ -78,23 +78,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:9:0::b",
-      "kavlan-11": "2001:660:4406:1a0:109:0::b",
-      "kavlan-12": "2001:660:4406:2a0:109:0::b",
-      "kavlan-13": "2001:660:4406:4a0:109:0::b",
-      "kavlan-14": "2001:660:4406:5a0:109:0::b",
-      "kavlan-16": "2001:660:4406:7a0:109:0::b",
-      "kavlan-18": "2001:660:4406:8a0:109:0::b",
-      "kavlan-2": "2001:660:4406:181:9:0::b",
-      "kavlan-20": "2001:660:4406:3a0:109:0::b",
-      "kavlan-21": "2001:660:4406:6a0:109:0::b",
-      "kavlan-3": "2001:660:4406:182:9:0::b",
-      "kavlan-4": "2001:660:4406:190:9:0::b",
-      "kavlan-5": "2001:660:4406:191:9:0::b",
-      "kavlan-6": "2001:660:4406:192:9:0::b",
-      "kavlan-7": "2001:660:4406:193:9:0::b",
-      "kavlan-8": "2001:660:4406:194:9:0::b",
-      "kavlan-9": "2001:660:4406:195:9:0::b"
+      "kavlan-1": "2001:660:4406:180:9::b",
+      "kavlan-11": "2001:660:4406:1a0:109::b",
+      "kavlan-12": "2001:660:4406:2a0:109::b",
+      "kavlan-13": "2001:660:4406:4a0:109::b",
+      "kavlan-14": "2001:660:4406:5a0:109::b",
+      "kavlan-16": "2001:660:4406:7a0:109::b",
+      "kavlan-18": "2001:660:4406:8a0:109::b",
+      "kavlan-2": "2001:660:4406:181:9::b",
+      "kavlan-20": "2001:660:4406:3a0:109::b",
+      "kavlan-21": "2001:660:4406:6a0:109::b",
+      "kavlan-3": "2001:660:4406:182:9::b",
+      "kavlan-4": "2001:660:4406:190:9::b",
+      "kavlan-5": "2001:660:4406:191:9::b",
+      "kavlan-6": "2001:660:4406:192:9::b",
+      "kavlan-7": "2001:660:4406:193:9::b",
+      "kavlan-8": "2001:660:4406:194:9::b",
+      "kavlan-9": "2001:660:4406:195:9::b"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "bc 7.10.4",
       "interface": "Ethernet",
       "ip": "172.16.24.11",
-      "ip6": "2001:660:4406:100:9:0::b",
+      "ip6": "2001:660:4406:100:9::b",
       "kavlan": true,
       "mac": "98:be:94:68:46:54",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-12.json b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-12.json
index e1dfdf496bce13f48dd38f9bd12b9016598b76b5..af41fdd4dd929b4868e75af5cf44fdab58bda5cd 100644
--- a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-12.json
+++ b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-12.json
@@ -78,23 +78,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:9:0::c",
-      "kavlan-11": "2001:660:4406:1a0:109:0::c",
-      "kavlan-12": "2001:660:4406:2a0:109:0::c",
-      "kavlan-13": "2001:660:4406:4a0:109:0::c",
-      "kavlan-14": "2001:660:4406:5a0:109:0::c",
-      "kavlan-16": "2001:660:4406:7a0:109:0::c",
-      "kavlan-18": "2001:660:4406:8a0:109:0::c",
-      "kavlan-2": "2001:660:4406:181:9:0::c",
-      "kavlan-20": "2001:660:4406:3a0:109:0::c",
-      "kavlan-21": "2001:660:4406:6a0:109:0::c",
-      "kavlan-3": "2001:660:4406:182:9:0::c",
-      "kavlan-4": "2001:660:4406:190:9:0::c",
-      "kavlan-5": "2001:660:4406:191:9:0::c",
-      "kavlan-6": "2001:660:4406:192:9:0::c",
-      "kavlan-7": "2001:660:4406:193:9:0::c",
-      "kavlan-8": "2001:660:4406:194:9:0::c",
-      "kavlan-9": "2001:660:4406:195:9:0::c"
+      "kavlan-1": "2001:660:4406:180:9::c",
+      "kavlan-11": "2001:660:4406:1a0:109::c",
+      "kavlan-12": "2001:660:4406:2a0:109::c",
+      "kavlan-13": "2001:660:4406:4a0:109::c",
+      "kavlan-14": "2001:660:4406:5a0:109::c",
+      "kavlan-16": "2001:660:4406:7a0:109::c",
+      "kavlan-18": "2001:660:4406:8a0:109::c",
+      "kavlan-2": "2001:660:4406:181:9::c",
+      "kavlan-20": "2001:660:4406:3a0:109::c",
+      "kavlan-21": "2001:660:4406:6a0:109::c",
+      "kavlan-3": "2001:660:4406:182:9::c",
+      "kavlan-4": "2001:660:4406:190:9::c",
+      "kavlan-5": "2001:660:4406:191:9::c",
+      "kavlan-6": "2001:660:4406:192:9::c",
+      "kavlan-7": "2001:660:4406:193:9::c",
+      "kavlan-8": "2001:660:4406:194:9::c",
+      "kavlan-9": "2001:660:4406:195:9::c"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "bc 7.10.4",
       "interface": "Ethernet",
       "ip": "172.16.24.12",
-      "ip6": "2001:660:4406:100:9:0::c",
+      "ip6": "2001:660:4406:100:9::c",
       "kavlan": true,
       "mac": "98:be:94:68:7a:14",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-2.json b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-2.json
index be71933038b087c8531a17cc8395c3732c5b1bd6..1a2e384a5029fe1027f9a6222756f82b553d71fe 100644
--- a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-2.json
+++ b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-2.json
@@ -78,23 +78,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:9:0::2",
-      "kavlan-11": "2001:660:4406:1a0:109:0::2",
-      "kavlan-12": "2001:660:4406:2a0:109:0::2",
-      "kavlan-13": "2001:660:4406:4a0:109:0::2",
-      "kavlan-14": "2001:660:4406:5a0:109:0::2",
-      "kavlan-16": "2001:660:4406:7a0:109:0::2",
-      "kavlan-18": "2001:660:4406:8a0:109:0::2",
-      "kavlan-2": "2001:660:4406:181:9:0::2",
-      "kavlan-20": "2001:660:4406:3a0:109:0::2",
-      "kavlan-21": "2001:660:4406:6a0:109:0::2",
-      "kavlan-3": "2001:660:4406:182:9:0::2",
-      "kavlan-4": "2001:660:4406:190:9:0::2",
-      "kavlan-5": "2001:660:4406:191:9:0::2",
-      "kavlan-6": "2001:660:4406:192:9:0::2",
-      "kavlan-7": "2001:660:4406:193:9:0::2",
-      "kavlan-8": "2001:660:4406:194:9:0::2",
-      "kavlan-9": "2001:660:4406:195:9:0::2"
+      "kavlan-1": "2001:660:4406:180:9::2",
+      "kavlan-11": "2001:660:4406:1a0:109::2",
+      "kavlan-12": "2001:660:4406:2a0:109::2",
+      "kavlan-13": "2001:660:4406:4a0:109::2",
+      "kavlan-14": "2001:660:4406:5a0:109::2",
+      "kavlan-16": "2001:660:4406:7a0:109::2",
+      "kavlan-18": "2001:660:4406:8a0:109::2",
+      "kavlan-2": "2001:660:4406:181:9::2",
+      "kavlan-20": "2001:660:4406:3a0:109::2",
+      "kavlan-21": "2001:660:4406:6a0:109::2",
+      "kavlan-3": "2001:660:4406:182:9::2",
+      "kavlan-4": "2001:660:4406:190:9::2",
+      "kavlan-5": "2001:660:4406:191:9::2",
+      "kavlan-6": "2001:660:4406:192:9::2",
+      "kavlan-7": "2001:660:4406:193:9::2",
+      "kavlan-8": "2001:660:4406:194:9::2",
+      "kavlan-9": "2001:660:4406:195:9::2"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "bc 7.10.4",
       "interface": "Ethernet",
       "ip": "172.16.24.2",
-      "ip6": "2001:660:4406:100:9:0::2",
+      "ip6": "2001:660:4406:100:9::2",
       "kavlan": true,
       "mac": "98:be:94:68:72:34",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-3.json b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-3.json
index 9acccd1f203e8360b3008cce5c1afab8ef667b7f..5cfa4bd38042b08c2465bc7f4e77b1bf185da287 100644
--- a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-3.json
+++ b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-3.json
@@ -78,23 +78,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:9:0::3",
-      "kavlan-11": "2001:660:4406:1a0:109:0::3",
-      "kavlan-12": "2001:660:4406:2a0:109:0::3",
-      "kavlan-13": "2001:660:4406:4a0:109:0::3",
-      "kavlan-14": "2001:660:4406:5a0:109:0::3",
-      "kavlan-16": "2001:660:4406:7a0:109:0::3",
-      "kavlan-18": "2001:660:4406:8a0:109:0::3",
-      "kavlan-2": "2001:660:4406:181:9:0::3",
-      "kavlan-20": "2001:660:4406:3a0:109:0::3",
-      "kavlan-21": "2001:660:4406:6a0:109:0::3",
-      "kavlan-3": "2001:660:4406:182:9:0::3",
-      "kavlan-4": "2001:660:4406:190:9:0::3",
-      "kavlan-5": "2001:660:4406:191:9:0::3",
-      "kavlan-6": "2001:660:4406:192:9:0::3",
-      "kavlan-7": "2001:660:4406:193:9:0::3",
-      "kavlan-8": "2001:660:4406:194:9:0::3",
-      "kavlan-9": "2001:660:4406:195:9:0::3"
+      "kavlan-1": "2001:660:4406:180:9::3",
+      "kavlan-11": "2001:660:4406:1a0:109::3",
+      "kavlan-12": "2001:660:4406:2a0:109::3",
+      "kavlan-13": "2001:660:4406:4a0:109::3",
+      "kavlan-14": "2001:660:4406:5a0:109::3",
+      "kavlan-16": "2001:660:4406:7a0:109::3",
+      "kavlan-18": "2001:660:4406:8a0:109::3",
+      "kavlan-2": "2001:660:4406:181:9::3",
+      "kavlan-20": "2001:660:4406:3a0:109::3",
+      "kavlan-21": "2001:660:4406:6a0:109::3",
+      "kavlan-3": "2001:660:4406:182:9::3",
+      "kavlan-4": "2001:660:4406:190:9::3",
+      "kavlan-5": "2001:660:4406:191:9::3",
+      "kavlan-6": "2001:660:4406:192:9::3",
+      "kavlan-7": "2001:660:4406:193:9::3",
+      "kavlan-8": "2001:660:4406:194:9::3",
+      "kavlan-9": "2001:660:4406:195:9::3"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "bc 7.10.4",
       "interface": "Ethernet",
       "ip": "172.16.24.3",
-      "ip6": "2001:660:4406:100:9:0::3",
+      "ip6": "2001:660:4406:100:9::3",
       "kavlan": true,
       "mac": "98:be:94:68:72:64",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-4.json b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-4.json
index 43159731b102b304c5bf74f4b30fc6b87c308dc7..30b8fb5e6a476858d24d2f1026b07dc344eeb8bd 100644
--- a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-4.json
+++ b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-4.json
@@ -78,23 +78,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:9:0::4",
-      "kavlan-11": "2001:660:4406:1a0:109:0::4",
-      "kavlan-12": "2001:660:4406:2a0:109:0::4",
-      "kavlan-13": "2001:660:4406:4a0:109:0::4",
-      "kavlan-14": "2001:660:4406:5a0:109:0::4",
-      "kavlan-16": "2001:660:4406:7a0:109:0::4",
-      "kavlan-18": "2001:660:4406:8a0:109:0::4",
-      "kavlan-2": "2001:660:4406:181:9:0::4",
-      "kavlan-20": "2001:660:4406:3a0:109:0::4",
-      "kavlan-21": "2001:660:4406:6a0:109:0::4",
-      "kavlan-3": "2001:660:4406:182:9:0::4",
-      "kavlan-4": "2001:660:4406:190:9:0::4",
-      "kavlan-5": "2001:660:4406:191:9:0::4",
-      "kavlan-6": "2001:660:4406:192:9:0::4",
-      "kavlan-7": "2001:660:4406:193:9:0::4",
-      "kavlan-8": "2001:660:4406:194:9:0::4",
-      "kavlan-9": "2001:660:4406:195:9:0::4"
+      "kavlan-1": "2001:660:4406:180:9::4",
+      "kavlan-11": "2001:660:4406:1a0:109::4",
+      "kavlan-12": "2001:660:4406:2a0:109::4",
+      "kavlan-13": "2001:660:4406:4a0:109::4",
+      "kavlan-14": "2001:660:4406:5a0:109::4",
+      "kavlan-16": "2001:660:4406:7a0:109::4",
+      "kavlan-18": "2001:660:4406:8a0:109::4",
+      "kavlan-2": "2001:660:4406:181:9::4",
+      "kavlan-20": "2001:660:4406:3a0:109::4",
+      "kavlan-21": "2001:660:4406:6a0:109::4",
+      "kavlan-3": "2001:660:4406:182:9::4",
+      "kavlan-4": "2001:660:4406:190:9::4",
+      "kavlan-5": "2001:660:4406:191:9::4",
+      "kavlan-6": "2001:660:4406:192:9::4",
+      "kavlan-7": "2001:660:4406:193:9::4",
+      "kavlan-8": "2001:660:4406:194:9::4",
+      "kavlan-9": "2001:660:4406:195:9::4"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "bc 7.10.4",
       "interface": "Ethernet",
       "ip": "172.16.24.4",
-      "ip6": "2001:660:4406:100:9:0::4",
+      "ip6": "2001:660:4406:100:9::4",
       "kavlan": true,
       "mac": "98:be:94:68:72:54",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-5.json b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-5.json
index 291d85667d5f622b8d3f03f7ae43ddf411c9f933..d79d71aade2c83385e35e2e9a59cae6e34388aae 100644
--- a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-5.json
+++ b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-5.json
@@ -78,23 +78,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:9:0::5",
-      "kavlan-11": "2001:660:4406:1a0:109:0::5",
-      "kavlan-12": "2001:660:4406:2a0:109:0::5",
-      "kavlan-13": "2001:660:4406:4a0:109:0::5",
-      "kavlan-14": "2001:660:4406:5a0:109:0::5",
-      "kavlan-16": "2001:660:4406:7a0:109:0::5",
-      "kavlan-18": "2001:660:4406:8a0:109:0::5",
-      "kavlan-2": "2001:660:4406:181:9:0::5",
-      "kavlan-20": "2001:660:4406:3a0:109:0::5",
-      "kavlan-21": "2001:660:4406:6a0:109:0::5",
-      "kavlan-3": "2001:660:4406:182:9:0::5",
-      "kavlan-4": "2001:660:4406:190:9:0::5",
-      "kavlan-5": "2001:660:4406:191:9:0::5",
-      "kavlan-6": "2001:660:4406:192:9:0::5",
-      "kavlan-7": "2001:660:4406:193:9:0::5",
-      "kavlan-8": "2001:660:4406:194:9:0::5",
-      "kavlan-9": "2001:660:4406:195:9:0::5"
+      "kavlan-1": "2001:660:4406:180:9::5",
+      "kavlan-11": "2001:660:4406:1a0:109::5",
+      "kavlan-12": "2001:660:4406:2a0:109::5",
+      "kavlan-13": "2001:660:4406:4a0:109::5",
+      "kavlan-14": "2001:660:4406:5a0:109::5",
+      "kavlan-16": "2001:660:4406:7a0:109::5",
+      "kavlan-18": "2001:660:4406:8a0:109::5",
+      "kavlan-2": "2001:660:4406:181:9::5",
+      "kavlan-20": "2001:660:4406:3a0:109::5",
+      "kavlan-21": "2001:660:4406:6a0:109::5",
+      "kavlan-3": "2001:660:4406:182:9::5",
+      "kavlan-4": "2001:660:4406:190:9::5",
+      "kavlan-5": "2001:660:4406:191:9::5",
+      "kavlan-6": "2001:660:4406:192:9::5",
+      "kavlan-7": "2001:660:4406:193:9::5",
+      "kavlan-8": "2001:660:4406:194:9::5",
+      "kavlan-9": "2001:660:4406:195:9::5"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "bc 7.10.4",
       "interface": "Ethernet",
       "ip": "172.16.24.5",
-      "ip6": "2001:660:4406:100:9:0::5",
+      "ip6": "2001:660:4406:100:9::5",
       "kavlan": true,
       "mac": "98:be:94:68:48:cc",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-6.json b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-6.json
index cae414e0f19853198477c17ac5f8519aa6da8990..0287a294a1534c7c9b39523de8dacafce65fc023 100644
--- a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-6.json
+++ b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-6.json
@@ -78,23 +78,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:9:0::6",
-      "kavlan-11": "2001:660:4406:1a0:109:0::6",
-      "kavlan-12": "2001:660:4406:2a0:109:0::6",
-      "kavlan-13": "2001:660:4406:4a0:109:0::6",
-      "kavlan-14": "2001:660:4406:5a0:109:0::6",
-      "kavlan-16": "2001:660:4406:7a0:109:0::6",
-      "kavlan-18": "2001:660:4406:8a0:109:0::6",
-      "kavlan-2": "2001:660:4406:181:9:0::6",
-      "kavlan-20": "2001:660:4406:3a0:109:0::6",
-      "kavlan-21": "2001:660:4406:6a0:109:0::6",
-      "kavlan-3": "2001:660:4406:182:9:0::6",
-      "kavlan-4": "2001:660:4406:190:9:0::6",
-      "kavlan-5": "2001:660:4406:191:9:0::6",
-      "kavlan-6": "2001:660:4406:192:9:0::6",
-      "kavlan-7": "2001:660:4406:193:9:0::6",
-      "kavlan-8": "2001:660:4406:194:9:0::6",
-      "kavlan-9": "2001:660:4406:195:9:0::6"
+      "kavlan-1": "2001:660:4406:180:9::6",
+      "kavlan-11": "2001:660:4406:1a0:109::6",
+      "kavlan-12": "2001:660:4406:2a0:109::6",
+      "kavlan-13": "2001:660:4406:4a0:109::6",
+      "kavlan-14": "2001:660:4406:5a0:109::6",
+      "kavlan-16": "2001:660:4406:7a0:109::6",
+      "kavlan-18": "2001:660:4406:8a0:109::6",
+      "kavlan-2": "2001:660:4406:181:9::6",
+      "kavlan-20": "2001:660:4406:3a0:109::6",
+      "kavlan-21": "2001:660:4406:6a0:109::6",
+      "kavlan-3": "2001:660:4406:182:9::6",
+      "kavlan-4": "2001:660:4406:190:9::6",
+      "kavlan-5": "2001:660:4406:191:9::6",
+      "kavlan-6": "2001:660:4406:192:9::6",
+      "kavlan-7": "2001:660:4406:193:9::6",
+      "kavlan-8": "2001:660:4406:194:9::6",
+      "kavlan-9": "2001:660:4406:195:9::6"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "bc 7.10.4",
       "interface": "Ethernet",
       "ip": "172.16.24.6",
-      "ip6": "2001:660:4406:100:9:0::6",
+      "ip6": "2001:660:4406:100:9::6",
       "kavlan": true,
       "mac": "98:be:94:68:7a:50",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-7.json b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-7.json
index d01d404db724aee3a60a74d23fe0573ce9ef4f7c..5331ea0ebb9155cb9d785c63701e739fc65c8a99 100644
--- a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-7.json
+++ b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-7.json
@@ -78,23 +78,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:9:0::7",
-      "kavlan-11": "2001:660:4406:1a0:109:0::7",
-      "kavlan-12": "2001:660:4406:2a0:109:0::7",
-      "kavlan-13": "2001:660:4406:4a0:109:0::7",
-      "kavlan-14": "2001:660:4406:5a0:109:0::7",
-      "kavlan-16": "2001:660:4406:7a0:109:0::7",
-      "kavlan-18": "2001:660:4406:8a0:109:0::7",
-      "kavlan-2": "2001:660:4406:181:9:0::7",
-      "kavlan-20": "2001:660:4406:3a0:109:0::7",
-      "kavlan-21": "2001:660:4406:6a0:109:0::7",
-      "kavlan-3": "2001:660:4406:182:9:0::7",
-      "kavlan-4": "2001:660:4406:190:9:0::7",
-      "kavlan-5": "2001:660:4406:191:9:0::7",
-      "kavlan-6": "2001:660:4406:192:9:0::7",
-      "kavlan-7": "2001:660:4406:193:9:0::7",
-      "kavlan-8": "2001:660:4406:194:9:0::7",
-      "kavlan-9": "2001:660:4406:195:9:0::7"
+      "kavlan-1": "2001:660:4406:180:9::7",
+      "kavlan-11": "2001:660:4406:1a0:109::7",
+      "kavlan-12": "2001:660:4406:2a0:109::7",
+      "kavlan-13": "2001:660:4406:4a0:109::7",
+      "kavlan-14": "2001:660:4406:5a0:109::7",
+      "kavlan-16": "2001:660:4406:7a0:109::7",
+      "kavlan-18": "2001:660:4406:8a0:109::7",
+      "kavlan-2": "2001:660:4406:181:9::7",
+      "kavlan-20": "2001:660:4406:3a0:109::7",
+      "kavlan-21": "2001:660:4406:6a0:109::7",
+      "kavlan-3": "2001:660:4406:182:9::7",
+      "kavlan-4": "2001:660:4406:190:9::7",
+      "kavlan-5": "2001:660:4406:191:9::7",
+      "kavlan-6": "2001:660:4406:192:9::7",
+      "kavlan-7": "2001:660:4406:193:9::7",
+      "kavlan-8": "2001:660:4406:194:9::7",
+      "kavlan-9": "2001:660:4406:195:9::7"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "bc 7.10.4",
       "interface": "Ethernet",
       "ip": "172.16.24.7",
-      "ip6": "2001:660:4406:100:9:0::7",
+      "ip6": "2001:660:4406:100:9::7",
       "kavlan": true,
       "mac": "98:be:94:68:80:14",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-8.json b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-8.json
index fe2ee5a7a509fc29c2a17f7fb499ae60768b57c5..161db1f1eda3f72eab6e0e8922770576444ee17a 100644
--- a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-8.json
+++ b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-8.json
@@ -78,23 +78,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:9:0::8",
-      "kavlan-11": "2001:660:4406:1a0:109:0::8",
-      "kavlan-12": "2001:660:4406:2a0:109:0::8",
-      "kavlan-13": "2001:660:4406:4a0:109:0::8",
-      "kavlan-14": "2001:660:4406:5a0:109:0::8",
-      "kavlan-16": "2001:660:4406:7a0:109:0::8",
-      "kavlan-18": "2001:660:4406:8a0:109:0::8",
-      "kavlan-2": "2001:660:4406:181:9:0::8",
-      "kavlan-20": "2001:660:4406:3a0:109:0::8",
-      "kavlan-21": "2001:660:4406:6a0:109:0::8",
-      "kavlan-3": "2001:660:4406:182:9:0::8",
-      "kavlan-4": "2001:660:4406:190:9:0::8",
-      "kavlan-5": "2001:660:4406:191:9:0::8",
-      "kavlan-6": "2001:660:4406:192:9:0::8",
-      "kavlan-7": "2001:660:4406:193:9:0::8",
-      "kavlan-8": "2001:660:4406:194:9:0::8",
-      "kavlan-9": "2001:660:4406:195:9:0::8"
+      "kavlan-1": "2001:660:4406:180:9::8",
+      "kavlan-11": "2001:660:4406:1a0:109::8",
+      "kavlan-12": "2001:660:4406:2a0:109::8",
+      "kavlan-13": "2001:660:4406:4a0:109::8",
+      "kavlan-14": "2001:660:4406:5a0:109::8",
+      "kavlan-16": "2001:660:4406:7a0:109::8",
+      "kavlan-18": "2001:660:4406:8a0:109::8",
+      "kavlan-2": "2001:660:4406:181:9::8",
+      "kavlan-20": "2001:660:4406:3a0:109::8",
+      "kavlan-21": "2001:660:4406:6a0:109::8",
+      "kavlan-3": "2001:660:4406:182:9::8",
+      "kavlan-4": "2001:660:4406:190:9::8",
+      "kavlan-5": "2001:660:4406:191:9::8",
+      "kavlan-6": "2001:660:4406:192:9::8",
+      "kavlan-7": "2001:660:4406:193:9::8",
+      "kavlan-8": "2001:660:4406:194:9::8",
+      "kavlan-9": "2001:660:4406:195:9::8"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "bc 7.10.4",
       "interface": "Ethernet",
       "ip": "172.16.24.8",
-      "ip6": "2001:660:4406:100:9:0::8",
+      "ip6": "2001:660:4406:100:9::8",
       "kavlan": true,
       "mac": "98:be:94:68:7b:90",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-9.json b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-9.json
index 0aaaef605fd870eb33e7e5d9867321729a182270..094b9fc2a5d3188f8100e6611f0452281d714f50 100644
--- a/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-9.json
+++ b/data/grid5000/sites/grenoble/clusters/drac/nodes/drac-9.json
@@ -78,23 +78,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:9:0::9",
-      "kavlan-11": "2001:660:4406:1a0:109:0::9",
-      "kavlan-12": "2001:660:4406:2a0:109:0::9",
-      "kavlan-13": "2001:660:4406:4a0:109:0::9",
-      "kavlan-14": "2001:660:4406:5a0:109:0::9",
-      "kavlan-16": "2001:660:4406:7a0:109:0::9",
-      "kavlan-18": "2001:660:4406:8a0:109:0::9",
-      "kavlan-2": "2001:660:4406:181:9:0::9",
-      "kavlan-20": "2001:660:4406:3a0:109:0::9",
-      "kavlan-21": "2001:660:4406:6a0:109:0::9",
-      "kavlan-3": "2001:660:4406:182:9:0::9",
-      "kavlan-4": "2001:660:4406:190:9:0::9",
-      "kavlan-5": "2001:660:4406:191:9:0::9",
-      "kavlan-6": "2001:660:4406:192:9:0::9",
-      "kavlan-7": "2001:660:4406:193:9:0::9",
-      "kavlan-8": "2001:660:4406:194:9:0::9",
-      "kavlan-9": "2001:660:4406:195:9:0::9"
+      "kavlan-1": "2001:660:4406:180:9::9",
+      "kavlan-11": "2001:660:4406:1a0:109::9",
+      "kavlan-12": "2001:660:4406:2a0:109::9",
+      "kavlan-13": "2001:660:4406:4a0:109::9",
+      "kavlan-14": "2001:660:4406:5a0:109::9",
+      "kavlan-16": "2001:660:4406:7a0:109::9",
+      "kavlan-18": "2001:660:4406:8a0:109::9",
+      "kavlan-2": "2001:660:4406:181:9::9",
+      "kavlan-20": "2001:660:4406:3a0:109::9",
+      "kavlan-21": "2001:660:4406:6a0:109::9",
+      "kavlan-3": "2001:660:4406:182:9::9",
+      "kavlan-4": "2001:660:4406:190:9::9",
+      "kavlan-5": "2001:660:4406:191:9::9",
+      "kavlan-6": "2001:660:4406:192:9::9",
+      "kavlan-7": "2001:660:4406:193:9::9",
+      "kavlan-8": "2001:660:4406:194:9::9",
+      "kavlan-9": "2001:660:4406:195:9::9"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "bc 7.10.4",
       "interface": "Ethernet",
       "ip": "172.16.24.9",
-      "ip6": "2001:660:4406:100:9:0::9",
+      "ip6": "2001:660:4406:100:9::9",
       "kavlan": true,
       "mac": "98:be:94:68:75:c0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-1.json b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-1.json
index 3ae464f6e4863b4cd1536811951a73a1fa441926..d09692b061382f2f87bbdb21c0ae5def7540b262 100644
--- a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-1.json
+++ b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:7:0::1",
-      "kavlan-11": "2001:660:4406:1a0:107:0::1",
-      "kavlan-12": "2001:660:4406:2a0:107:0::1",
-      "kavlan-13": "2001:660:4406:4a0:107:0::1",
-      "kavlan-14": "2001:660:4406:5a0:107:0::1",
-      "kavlan-16": "2001:660:4406:7a0:107:0::1",
-      "kavlan-18": "2001:660:4406:8a0:107:0::1",
-      "kavlan-2": "2001:660:4406:181:7:0::1",
-      "kavlan-20": "2001:660:4406:3a0:107:0::1",
-      "kavlan-21": "2001:660:4406:6a0:107:0::1",
-      "kavlan-3": "2001:660:4406:182:7:0::1",
-      "kavlan-4": "2001:660:4406:190:7:0::1",
-      "kavlan-5": "2001:660:4406:191:7:0::1",
-      "kavlan-6": "2001:660:4406:192:7:0::1",
-      "kavlan-7": "2001:660:4406:193:7:0::1",
-      "kavlan-8": "2001:660:4406:194:7:0::1",
-      "kavlan-9": "2001:660:4406:195:7:0::1"
+      "kavlan-1": "2001:660:4406:180:7::1",
+      "kavlan-11": "2001:660:4406:1a0:107::1",
+      "kavlan-12": "2001:660:4406:2a0:107::1",
+      "kavlan-13": "2001:660:4406:4a0:107::1",
+      "kavlan-14": "2001:660:4406:5a0:107::1",
+      "kavlan-16": "2001:660:4406:7a0:107::1",
+      "kavlan-18": "2001:660:4406:8a0:107::1",
+      "kavlan-2": "2001:660:4406:181:7::1",
+      "kavlan-20": "2001:660:4406:3a0:107::1",
+      "kavlan-21": "2001:660:4406:6a0:107::1",
+      "kavlan-3": "2001:660:4406:182:7::1",
+      "kavlan-4": "2001:660:4406:190:7::1",
+      "kavlan-5": "2001:660:4406:191:7::1",
+      "kavlan-6": "2001:660:4406:192:7::1",
+      "kavlan-7": "2001:660:4406:193:7::1",
+      "kavlan-8": "2001:660:4406:194:7::1",
+      "kavlan-9": "2001:660:4406:195:7::1"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.22.1",
-      "ip6": "2001:660:4406:100:7:0::1",
+      "ip6": "2001:660:4406:100:7::1",
       "kavlan": true,
       "mac": "b8:59:9f:b0:87:00",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-2.json b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-2.json
index 0e4acf18c8272b14d8bfc88b069e9eebea7075a8..ab93a48532fe75ca91816816da3be7987aaa9752 100644
--- a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-2.json
+++ b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:7:0::2",
-      "kavlan-11": "2001:660:4406:1a0:107:0::2",
-      "kavlan-12": "2001:660:4406:2a0:107:0::2",
-      "kavlan-13": "2001:660:4406:4a0:107:0::2",
-      "kavlan-14": "2001:660:4406:5a0:107:0::2",
-      "kavlan-16": "2001:660:4406:7a0:107:0::2",
-      "kavlan-18": "2001:660:4406:8a0:107:0::2",
-      "kavlan-2": "2001:660:4406:181:7:0::2",
-      "kavlan-20": "2001:660:4406:3a0:107:0::2",
-      "kavlan-21": "2001:660:4406:6a0:107:0::2",
-      "kavlan-3": "2001:660:4406:182:7:0::2",
-      "kavlan-4": "2001:660:4406:190:7:0::2",
-      "kavlan-5": "2001:660:4406:191:7:0::2",
-      "kavlan-6": "2001:660:4406:192:7:0::2",
-      "kavlan-7": "2001:660:4406:193:7:0::2",
-      "kavlan-8": "2001:660:4406:194:7:0::2",
-      "kavlan-9": "2001:660:4406:195:7:0::2"
+      "kavlan-1": "2001:660:4406:180:7::2",
+      "kavlan-11": "2001:660:4406:1a0:107::2",
+      "kavlan-12": "2001:660:4406:2a0:107::2",
+      "kavlan-13": "2001:660:4406:4a0:107::2",
+      "kavlan-14": "2001:660:4406:5a0:107::2",
+      "kavlan-16": "2001:660:4406:7a0:107::2",
+      "kavlan-18": "2001:660:4406:8a0:107::2",
+      "kavlan-2": "2001:660:4406:181:7::2",
+      "kavlan-20": "2001:660:4406:3a0:107::2",
+      "kavlan-21": "2001:660:4406:6a0:107::2",
+      "kavlan-3": "2001:660:4406:182:7::2",
+      "kavlan-4": "2001:660:4406:190:7::2",
+      "kavlan-5": "2001:660:4406:191:7::2",
+      "kavlan-6": "2001:660:4406:192:7::2",
+      "kavlan-7": "2001:660:4406:193:7::2",
+      "kavlan-8": "2001:660:4406:194:7::2",
+      "kavlan-9": "2001:660:4406:195:7::2"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.22.2",
-      "ip6": "2001:660:4406:100:7:0::2",
+      "ip6": "2001:660:4406:100:7::2",
       "kavlan": true,
       "mac": "b8:59:9f:b0:87:08",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-3.json b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-3.json
index 2e1d5931ccbcd323b16a6321cb15f5f8561a2198..e0d8aeb142d84a95ed815f3057553811b6f052b8 100644
--- a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-3.json
+++ b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:7:0::3",
-      "kavlan-11": "2001:660:4406:1a0:107:0::3",
-      "kavlan-12": "2001:660:4406:2a0:107:0::3",
-      "kavlan-13": "2001:660:4406:4a0:107:0::3",
-      "kavlan-14": "2001:660:4406:5a0:107:0::3",
-      "kavlan-16": "2001:660:4406:7a0:107:0::3",
-      "kavlan-18": "2001:660:4406:8a0:107:0::3",
-      "kavlan-2": "2001:660:4406:181:7:0::3",
-      "kavlan-20": "2001:660:4406:3a0:107:0::3",
-      "kavlan-21": "2001:660:4406:6a0:107:0::3",
-      "kavlan-3": "2001:660:4406:182:7:0::3",
-      "kavlan-4": "2001:660:4406:190:7:0::3",
-      "kavlan-5": "2001:660:4406:191:7:0::3",
-      "kavlan-6": "2001:660:4406:192:7:0::3",
-      "kavlan-7": "2001:660:4406:193:7:0::3",
-      "kavlan-8": "2001:660:4406:194:7:0::3",
-      "kavlan-9": "2001:660:4406:195:7:0::3"
+      "kavlan-1": "2001:660:4406:180:7::3",
+      "kavlan-11": "2001:660:4406:1a0:107::3",
+      "kavlan-12": "2001:660:4406:2a0:107::3",
+      "kavlan-13": "2001:660:4406:4a0:107::3",
+      "kavlan-14": "2001:660:4406:5a0:107::3",
+      "kavlan-16": "2001:660:4406:7a0:107::3",
+      "kavlan-18": "2001:660:4406:8a0:107::3",
+      "kavlan-2": "2001:660:4406:181:7::3",
+      "kavlan-20": "2001:660:4406:3a0:107::3",
+      "kavlan-21": "2001:660:4406:6a0:107::3",
+      "kavlan-3": "2001:660:4406:182:7::3",
+      "kavlan-4": "2001:660:4406:190:7::3",
+      "kavlan-5": "2001:660:4406:191:7::3",
+      "kavlan-6": "2001:660:4406:192:7::3",
+      "kavlan-7": "2001:660:4406:193:7::3",
+      "kavlan-8": "2001:660:4406:194:7::3",
+      "kavlan-9": "2001:660:4406:195:7::3"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.22.3",
-      "ip6": "2001:660:4406:100:7:0::3",
+      "ip6": "2001:660:4406:100:7::3",
       "kavlan": true,
       "mac": "b8:59:9f:b0:86:e8",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-4.json b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-4.json
index 1ff45386a02f8dc5dc24d7540f9966451ffd8afb..b4545a10866d96c87a781df814bfa467fe3f342f 100644
--- a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-4.json
+++ b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:7:0::4",
-      "kavlan-11": "2001:660:4406:1a0:107:0::4",
-      "kavlan-12": "2001:660:4406:2a0:107:0::4",
-      "kavlan-13": "2001:660:4406:4a0:107:0::4",
-      "kavlan-14": "2001:660:4406:5a0:107:0::4",
-      "kavlan-16": "2001:660:4406:7a0:107:0::4",
-      "kavlan-18": "2001:660:4406:8a0:107:0::4",
-      "kavlan-2": "2001:660:4406:181:7:0::4",
-      "kavlan-20": "2001:660:4406:3a0:107:0::4",
-      "kavlan-21": "2001:660:4406:6a0:107:0::4",
-      "kavlan-3": "2001:660:4406:182:7:0::4",
-      "kavlan-4": "2001:660:4406:190:7:0::4",
-      "kavlan-5": "2001:660:4406:191:7:0::4",
-      "kavlan-6": "2001:660:4406:192:7:0::4",
-      "kavlan-7": "2001:660:4406:193:7:0::4",
-      "kavlan-8": "2001:660:4406:194:7:0::4",
-      "kavlan-9": "2001:660:4406:195:7:0::4"
+      "kavlan-1": "2001:660:4406:180:7::4",
+      "kavlan-11": "2001:660:4406:1a0:107::4",
+      "kavlan-12": "2001:660:4406:2a0:107::4",
+      "kavlan-13": "2001:660:4406:4a0:107::4",
+      "kavlan-14": "2001:660:4406:5a0:107::4",
+      "kavlan-16": "2001:660:4406:7a0:107::4",
+      "kavlan-18": "2001:660:4406:8a0:107::4",
+      "kavlan-2": "2001:660:4406:181:7::4",
+      "kavlan-20": "2001:660:4406:3a0:107::4",
+      "kavlan-21": "2001:660:4406:6a0:107::4",
+      "kavlan-3": "2001:660:4406:182:7::4",
+      "kavlan-4": "2001:660:4406:190:7::4",
+      "kavlan-5": "2001:660:4406:191:7::4",
+      "kavlan-6": "2001:660:4406:192:7::4",
+      "kavlan-7": "2001:660:4406:193:7::4",
+      "kavlan-8": "2001:660:4406:194:7::4",
+      "kavlan-9": "2001:660:4406:195:7::4"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.22.4",
-      "ip6": "2001:660:4406:100:7:0::4",
+      "ip6": "2001:660:4406:100:7::4",
       "kavlan": true,
       "mac": "b8:59:9f:b1:09:04",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-1.json b/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-1.json
index 71564f4d76542f23af989ab8101ba673e469404f..e308449f0182ff12703d3b1155639128b5d24460 100644
--- a/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-1.json
+++ b/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:4:0::1",
-      "kavlan-11": "2001:660:4406:1a0:104:0::1",
-      "kavlan-12": "2001:660:4406:2a0:104:0::1",
-      "kavlan-13": "2001:660:4406:4a0:104:0::1",
-      "kavlan-14": "2001:660:4406:5a0:104:0::1",
-      "kavlan-16": "2001:660:4406:7a0:104:0::1",
-      "kavlan-18": "2001:660:4406:8a0:104:0::1",
-      "kavlan-2": "2001:660:4406:181:4:0::1",
-      "kavlan-20": "2001:660:4406:3a0:104:0::1",
-      "kavlan-21": "2001:660:4406:6a0:104:0::1",
-      "kavlan-3": "2001:660:4406:182:4:0::1",
-      "kavlan-4": "2001:660:4406:190:4:0::1",
-      "kavlan-5": "2001:660:4406:191:4:0::1",
-      "kavlan-6": "2001:660:4406:192:4:0::1",
-      "kavlan-7": "2001:660:4406:193:4:0::1",
-      "kavlan-8": "2001:660:4406:194:4:0::1",
-      "kavlan-9": "2001:660:4406:195:4:0::1"
+      "kavlan-1": "2001:660:4406:180:4::1",
+      "kavlan-11": "2001:660:4406:1a0:104::1",
+      "kavlan-12": "2001:660:4406:2a0:104::1",
+      "kavlan-13": "2001:660:4406:4a0:104::1",
+      "kavlan-14": "2001:660:4406:5a0:104::1",
+      "kavlan-16": "2001:660:4406:7a0:104::1",
+      "kavlan-18": "2001:660:4406:8a0:104::1",
+      "kavlan-2": "2001:660:4406:181:4::1",
+      "kavlan-20": "2001:660:4406:3a0:104::1",
+      "kavlan-21": "2001:660:4406:6a0:104::1",
+      "kavlan-3": "2001:660:4406:182:4::1",
+      "kavlan-4": "2001:660:4406:190:4::1",
+      "kavlan-5": "2001:660:4406:191:4::1",
+      "kavlan-6": "2001:660:4406:192:4::1",
+      "kavlan-7": "2001:660:4406:193:4::1",
+      "kavlan-8": "2001:660:4406:194:4::1",
+      "kavlan-9": "2001:660:4406:195:4::1"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ab 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.19.1",
-      "ip6": "2001:660:4406:100:4:0::1",
+      "ip6": "2001:660:4406:100:4::1",
       "kavlan": true,
       "mac": "24:6e:96:91:1e:b0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-2.json b/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-2.json
index 98ef385e9601e4b1a65f82dabf03bdd09922994c..9a99d6c165fec4ce9318ecc1edc802ff533b129f 100644
--- a/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-2.json
+++ b/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:4:0::2",
-      "kavlan-11": "2001:660:4406:1a0:104:0::2",
-      "kavlan-12": "2001:660:4406:2a0:104:0::2",
-      "kavlan-13": "2001:660:4406:4a0:104:0::2",
-      "kavlan-14": "2001:660:4406:5a0:104:0::2",
-      "kavlan-16": "2001:660:4406:7a0:104:0::2",
-      "kavlan-18": "2001:660:4406:8a0:104:0::2",
-      "kavlan-2": "2001:660:4406:181:4:0::2",
-      "kavlan-20": "2001:660:4406:3a0:104:0::2",
-      "kavlan-21": "2001:660:4406:6a0:104:0::2",
-      "kavlan-3": "2001:660:4406:182:4:0::2",
-      "kavlan-4": "2001:660:4406:190:4:0::2",
-      "kavlan-5": "2001:660:4406:191:4:0::2",
-      "kavlan-6": "2001:660:4406:192:4:0::2",
-      "kavlan-7": "2001:660:4406:193:4:0::2",
-      "kavlan-8": "2001:660:4406:194:4:0::2",
-      "kavlan-9": "2001:660:4406:195:4:0::2"
+      "kavlan-1": "2001:660:4406:180:4::2",
+      "kavlan-11": "2001:660:4406:1a0:104::2",
+      "kavlan-12": "2001:660:4406:2a0:104::2",
+      "kavlan-13": "2001:660:4406:4a0:104::2",
+      "kavlan-14": "2001:660:4406:5a0:104::2",
+      "kavlan-16": "2001:660:4406:7a0:104::2",
+      "kavlan-18": "2001:660:4406:8a0:104::2",
+      "kavlan-2": "2001:660:4406:181:4::2",
+      "kavlan-20": "2001:660:4406:3a0:104::2",
+      "kavlan-21": "2001:660:4406:6a0:104::2",
+      "kavlan-3": "2001:660:4406:182:4::2",
+      "kavlan-4": "2001:660:4406:190:4::2",
+      "kavlan-5": "2001:660:4406:191:4::2",
+      "kavlan-6": "2001:660:4406:192:4::2",
+      "kavlan-7": "2001:660:4406:193:4::2",
+      "kavlan-8": "2001:660:4406:194:4::2",
+      "kavlan-9": "2001:660:4406:195:4::2"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ab 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.19.2",
-      "ip6": "2001:660:4406:100:4:0::2",
+      "ip6": "2001:660:4406:100:4::2",
       "kavlan": true,
       "mac": "24:6e:96:91:2b:50",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-3.json b/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-3.json
index 2947cf12ef3af81b06fb8e1e02f88917783708da..480228b957107f16f122ad2e58a9f46f905c09a2 100644
--- a/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-3.json
+++ b/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:4:0::3",
-      "kavlan-11": "2001:660:4406:1a0:104:0::3",
-      "kavlan-12": "2001:660:4406:2a0:104:0::3",
-      "kavlan-13": "2001:660:4406:4a0:104:0::3",
-      "kavlan-14": "2001:660:4406:5a0:104:0::3",
-      "kavlan-16": "2001:660:4406:7a0:104:0::3",
-      "kavlan-18": "2001:660:4406:8a0:104:0::3",
-      "kavlan-2": "2001:660:4406:181:4:0::3",
-      "kavlan-20": "2001:660:4406:3a0:104:0::3",
-      "kavlan-21": "2001:660:4406:6a0:104:0::3",
-      "kavlan-3": "2001:660:4406:182:4:0::3",
-      "kavlan-4": "2001:660:4406:190:4:0::3",
-      "kavlan-5": "2001:660:4406:191:4:0::3",
-      "kavlan-6": "2001:660:4406:192:4:0::3",
-      "kavlan-7": "2001:660:4406:193:4:0::3",
-      "kavlan-8": "2001:660:4406:194:4:0::3",
-      "kavlan-9": "2001:660:4406:195:4:0::3"
+      "kavlan-1": "2001:660:4406:180:4::3",
+      "kavlan-11": "2001:660:4406:1a0:104::3",
+      "kavlan-12": "2001:660:4406:2a0:104::3",
+      "kavlan-13": "2001:660:4406:4a0:104::3",
+      "kavlan-14": "2001:660:4406:5a0:104::3",
+      "kavlan-16": "2001:660:4406:7a0:104::3",
+      "kavlan-18": "2001:660:4406:8a0:104::3",
+      "kavlan-2": "2001:660:4406:181:4::3",
+      "kavlan-20": "2001:660:4406:3a0:104::3",
+      "kavlan-21": "2001:660:4406:6a0:104::3",
+      "kavlan-3": "2001:660:4406:182:4::3",
+      "kavlan-4": "2001:660:4406:190:4::3",
+      "kavlan-5": "2001:660:4406:191:4::3",
+      "kavlan-6": "2001:660:4406:192:4::3",
+      "kavlan-7": "2001:660:4406:193:4::3",
+      "kavlan-8": "2001:660:4406:194:4::3",
+      "kavlan-9": "2001:660:4406:195:4::3"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ab 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.19.3",
-      "ip6": "2001:660:4406:100:4:0::3",
+      "ip6": "2001:660:4406:100:4::3",
       "kavlan": true,
       "mac": "24:6e:96:91:4c:90",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-4.json b/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-4.json
index df5e20b0e2dd9b97faadb9f283c3c7def25c920e..aba726ac3e1a80fb431f81a0aa33d54fa25f0002 100644
--- a/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-4.json
+++ b/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:4:0::4",
-      "kavlan-11": "2001:660:4406:1a0:104:0::4",
-      "kavlan-12": "2001:660:4406:2a0:104:0::4",
-      "kavlan-13": "2001:660:4406:4a0:104:0::4",
-      "kavlan-14": "2001:660:4406:5a0:104:0::4",
-      "kavlan-16": "2001:660:4406:7a0:104:0::4",
-      "kavlan-18": "2001:660:4406:8a0:104:0::4",
-      "kavlan-2": "2001:660:4406:181:4:0::4",
-      "kavlan-20": "2001:660:4406:3a0:104:0::4",
-      "kavlan-21": "2001:660:4406:6a0:104:0::4",
-      "kavlan-3": "2001:660:4406:182:4:0::4",
-      "kavlan-4": "2001:660:4406:190:4:0::4",
-      "kavlan-5": "2001:660:4406:191:4:0::4",
-      "kavlan-6": "2001:660:4406:192:4:0::4",
-      "kavlan-7": "2001:660:4406:193:4:0::4",
-      "kavlan-8": "2001:660:4406:194:4:0::4",
-      "kavlan-9": "2001:660:4406:195:4:0::4"
+      "kavlan-1": "2001:660:4406:180:4::4",
+      "kavlan-11": "2001:660:4406:1a0:104::4",
+      "kavlan-12": "2001:660:4406:2a0:104::4",
+      "kavlan-13": "2001:660:4406:4a0:104::4",
+      "kavlan-14": "2001:660:4406:5a0:104::4",
+      "kavlan-16": "2001:660:4406:7a0:104::4",
+      "kavlan-18": "2001:660:4406:8a0:104::4",
+      "kavlan-2": "2001:660:4406:181:4::4",
+      "kavlan-20": "2001:660:4406:3a0:104::4",
+      "kavlan-21": "2001:660:4406:6a0:104::4",
+      "kavlan-3": "2001:660:4406:182:4::4",
+      "kavlan-4": "2001:660:4406:190:4::4",
+      "kavlan-5": "2001:660:4406:191:4::4",
+      "kavlan-6": "2001:660:4406:192:4::4",
+      "kavlan-7": "2001:660:4406:193:4::4",
+      "kavlan-8": "2001:660:4406:194:4::4",
+      "kavlan-9": "2001:660:4406:195:4::4"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ab 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.19.4",
-      "ip6": "2001:660:4406:100:4:0::4",
+      "ip6": "2001:660:4406:100:4::4",
       "kavlan": true,
       "mac": "24:6e:96:91:1d:b0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/grenoble.json b/data/grid5000/sites/grenoble/grenoble.json
index 0544387f964a318dd2b26d1ca2d60da322589224..bcc508515f6aa031803709d45c5049bda770059d 100644
--- a/data/grid5000/sites/grenoble/grenoble.json
+++ b/data/grid5000/sites/grenoble/grenoble.json
@@ -8,7 +8,7 @@
     "network": "10.132.0.0/14"
   },
   "ipv6": {
-    "prefix": "2001:660:4406:01",
+    "prefix": "2001:660:4406:100::/56",
     "site_global_kavlan": 11,
     "site_index": 1
   },
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-1.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-1.json
index 35ec76141f2f1fb95738f49209d0cd1be6a24e55..bf3fd127f0c703f3ac063c27f8b8294bead02cce 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-1.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-1.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6:0::1",
-      "kavlan-11": "2001:660:4406:1a0:206:0::1",
-      "kavlan-12": "2001:660:4406:2a0:206:0::1",
-      "kavlan-13": "2001:660:4406:4a0:206:0::1",
-      "kavlan-14": "2001:660:4406:5a0:206:0::1",
-      "kavlan-16": "2001:660:4406:7a0:206:0::1",
-      "kavlan-18": "2001:660:4406:8a0:206:0::1",
-      "kavlan-2": "2001:660:4406:281:6:0::1",
-      "kavlan-20": "2001:660:4406:3a0:206:0::1",
-      "kavlan-21": "2001:660:4406:6a0:206:0::1",
-      "kavlan-3": "2001:660:4406:282:6:0::1",
-      "kavlan-4": "2001:660:4406:290:6:0::1",
-      "kavlan-5": "2001:660:4406:291:6:0::1",
-      "kavlan-6": "2001:660:4406:292:6:0::1",
-      "kavlan-7": "2001:660:4406:293:6:0::1",
-      "kavlan-8": "2001:660:4406:294:6:0::1",
-      "kavlan-9": "2001:660:4406:295:6:0::1"
+      "kavlan-1": "2001:660:4406:280:6::1",
+      "kavlan-11": "2001:660:4406:1a0:206::1",
+      "kavlan-12": "2001:660:4406:2a0:206::1",
+      "kavlan-13": "2001:660:4406:4a0:206::1",
+      "kavlan-14": "2001:660:4406:5a0:206::1",
+      "kavlan-16": "2001:660:4406:7a0:206::1",
+      "kavlan-18": "2001:660:4406:8a0:206::1",
+      "kavlan-2": "2001:660:4406:281:6::1",
+      "kavlan-20": "2001:660:4406:3a0:206::1",
+      "kavlan-21": "2001:660:4406:6a0:206::1",
+      "kavlan-3": "2001:660:4406:282:6::1",
+      "kavlan-4": "2001:660:4406:290:6::1",
+      "kavlan-5": "2001:660:4406:291:6::1",
+      "kavlan-6": "2001:660:4406:292:6::1",
+      "kavlan-7": "2001:660:4406:293:6::1",
+      "kavlan-8": "2001:660:4406:294:6::1",
+      "kavlan-9": "2001:660:4406:295:6::1"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:6:1::1",
-      "kavlan-11": "2001:660:4406:1a0:206:1::1",
-      "kavlan-12": "2001:660:4406:2a0:206:1::1",
-      "kavlan-13": "2001:660:4406:4a0:206:1::1",
-      "kavlan-14": "2001:660:4406:5a0:206:1::1",
-      "kavlan-16": "2001:660:4406:7a0:206:1::1",
-      "kavlan-18": "2001:660:4406:8a0:206:1::1",
-      "kavlan-2": "2001:660:4406:281:6:1::1",
-      "kavlan-20": "2001:660:4406:3a0:206:1::1",
-      "kavlan-21": "2001:660:4406:6a0:206:1::1",
-      "kavlan-3": "2001:660:4406:282:6:1::1",
-      "kavlan-4": "2001:660:4406:290:6:1::1",
-      "kavlan-5": "2001:660:4406:291:6:1::1",
-      "kavlan-6": "2001:660:4406:292:6:1::1",
-      "kavlan-7": "2001:660:4406:293:6:1::1",
-      "kavlan-8": "2001:660:4406:294:6:1::1",
-      "kavlan-9": "2001:660:4406:295:6:1::1"
+      "kavlan-1": "2001:660:4406:280:6:1:0:1",
+      "kavlan-11": "2001:660:4406:1a0:206:1:0:1",
+      "kavlan-12": "2001:660:4406:2a0:206:1:0:1",
+      "kavlan-13": "2001:660:4406:4a0:206:1:0:1",
+      "kavlan-14": "2001:660:4406:5a0:206:1:0:1",
+      "kavlan-16": "2001:660:4406:7a0:206:1:0:1",
+      "kavlan-18": "2001:660:4406:8a0:206:1:0:1",
+      "kavlan-2": "2001:660:4406:281:6:1:0:1",
+      "kavlan-20": "2001:660:4406:3a0:206:1:0:1",
+      "kavlan-21": "2001:660:4406:6a0:206:1:0:1",
+      "kavlan-3": "2001:660:4406:282:6:1:0:1",
+      "kavlan-4": "2001:660:4406:290:6:1:0:1",
+      "kavlan-5": "2001:660:4406:291:6:1:0:1",
+      "kavlan-6": "2001:660:4406:292:6:1:0:1",
+      "kavlan-7": "2001:660:4406:293:6:1:0:1",
+      "kavlan-8": "2001:660:4406:294:6:1:0:1",
+      "kavlan-9": "2001:660:4406:295:6:1:0:1"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.1",
-      "ip6": "2001:660:4406:200:6:0::1",
+      "ip6": "2001:660:4406:200:6::1",
       "kavlan": true,
       "mac": "24:6e:96:2c:97:d0",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.101",
-      "ip6": "2001:660:4406:200:6:1::1",
+      "ip6": "2001:660:4406:200:6:1:0:1",
       "kavlan": true,
       "mac": "24:6e:96:2c:97:d2",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-10.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-10.json
index e50c3e6fc4708151dcab75c11800715cb4d7d5e2..8c4c181aaf1089f57fe82cb2c6ba8d49ddb07064 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-10.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-10.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6:0::a",
-      "kavlan-11": "2001:660:4406:1a0:206:0::a",
-      "kavlan-12": "2001:660:4406:2a0:206:0::a",
-      "kavlan-13": "2001:660:4406:4a0:206:0::a",
-      "kavlan-14": "2001:660:4406:5a0:206:0::a",
-      "kavlan-16": "2001:660:4406:7a0:206:0::a",
-      "kavlan-18": "2001:660:4406:8a0:206:0::a",
-      "kavlan-2": "2001:660:4406:281:6:0::a",
-      "kavlan-20": "2001:660:4406:3a0:206:0::a",
-      "kavlan-21": "2001:660:4406:6a0:206:0::a",
-      "kavlan-3": "2001:660:4406:282:6:0::a",
-      "kavlan-4": "2001:660:4406:290:6:0::a",
-      "kavlan-5": "2001:660:4406:291:6:0::a",
-      "kavlan-6": "2001:660:4406:292:6:0::a",
-      "kavlan-7": "2001:660:4406:293:6:0::a",
-      "kavlan-8": "2001:660:4406:294:6:0::a",
-      "kavlan-9": "2001:660:4406:295:6:0::a"
+      "kavlan-1": "2001:660:4406:280:6::a",
+      "kavlan-11": "2001:660:4406:1a0:206::a",
+      "kavlan-12": "2001:660:4406:2a0:206::a",
+      "kavlan-13": "2001:660:4406:4a0:206::a",
+      "kavlan-14": "2001:660:4406:5a0:206::a",
+      "kavlan-16": "2001:660:4406:7a0:206::a",
+      "kavlan-18": "2001:660:4406:8a0:206::a",
+      "kavlan-2": "2001:660:4406:281:6::a",
+      "kavlan-20": "2001:660:4406:3a0:206::a",
+      "kavlan-21": "2001:660:4406:6a0:206::a",
+      "kavlan-3": "2001:660:4406:282:6::a",
+      "kavlan-4": "2001:660:4406:290:6::a",
+      "kavlan-5": "2001:660:4406:291:6::a",
+      "kavlan-6": "2001:660:4406:292:6::a",
+      "kavlan-7": "2001:660:4406:293:6::a",
+      "kavlan-8": "2001:660:4406:294:6::a",
+      "kavlan-9": "2001:660:4406:295:6::a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:6:1::a",
-      "kavlan-11": "2001:660:4406:1a0:206:1::a",
-      "kavlan-12": "2001:660:4406:2a0:206:1::a",
-      "kavlan-13": "2001:660:4406:4a0:206:1::a",
-      "kavlan-14": "2001:660:4406:5a0:206:1::a",
-      "kavlan-16": "2001:660:4406:7a0:206:1::a",
-      "kavlan-18": "2001:660:4406:8a0:206:1::a",
-      "kavlan-2": "2001:660:4406:281:6:1::a",
-      "kavlan-20": "2001:660:4406:3a0:206:1::a",
-      "kavlan-21": "2001:660:4406:6a0:206:1::a",
-      "kavlan-3": "2001:660:4406:282:6:1::a",
-      "kavlan-4": "2001:660:4406:290:6:1::a",
-      "kavlan-5": "2001:660:4406:291:6:1::a",
-      "kavlan-6": "2001:660:4406:292:6:1::a",
-      "kavlan-7": "2001:660:4406:293:6:1::a",
-      "kavlan-8": "2001:660:4406:294:6:1::a",
-      "kavlan-9": "2001:660:4406:295:6:1::a"
+      "kavlan-1": "2001:660:4406:280:6:1:0:a",
+      "kavlan-11": "2001:660:4406:1a0:206:1:0:a",
+      "kavlan-12": "2001:660:4406:2a0:206:1:0:a",
+      "kavlan-13": "2001:660:4406:4a0:206:1:0:a",
+      "kavlan-14": "2001:660:4406:5a0:206:1:0:a",
+      "kavlan-16": "2001:660:4406:7a0:206:1:0:a",
+      "kavlan-18": "2001:660:4406:8a0:206:1:0:a",
+      "kavlan-2": "2001:660:4406:281:6:1:0:a",
+      "kavlan-20": "2001:660:4406:3a0:206:1:0:a",
+      "kavlan-21": "2001:660:4406:6a0:206:1:0:a",
+      "kavlan-3": "2001:660:4406:282:6:1:0:a",
+      "kavlan-4": "2001:660:4406:290:6:1:0:a",
+      "kavlan-5": "2001:660:4406:291:6:1:0:a",
+      "kavlan-6": "2001:660:4406:292:6:1:0:a",
+      "kavlan-7": "2001:660:4406:293:6:1:0:a",
+      "kavlan-8": "2001:660:4406:294:6:1:0:a",
+      "kavlan-9": "2001:660:4406:295:6:1:0:a"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.10",
-      "ip6": "2001:660:4406:200:6:0::a",
+      "ip6": "2001:660:4406:200:6::a",
       "kavlan": true,
       "mac": "24:6e:96:2c:9a:48",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.110",
-      "ip6": "2001:660:4406:200:6:1::a",
+      "ip6": "2001:660:4406:200:6:1:0:a",
       "kavlan": true,
       "mac": "24:6e:96:2c:9a:4a",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-11.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-11.json
index 3c043060490a7c5c650102ae1ea193ea781e2d20..1eb8056ca3fea2fae288d14031171aeaabc4fd48 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-11.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-11.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6:0::b",
-      "kavlan-11": "2001:660:4406:1a0:206:0::b",
-      "kavlan-12": "2001:660:4406:2a0:206:0::b",
-      "kavlan-13": "2001:660:4406:4a0:206:0::b",
-      "kavlan-14": "2001:660:4406:5a0:206:0::b",
-      "kavlan-16": "2001:660:4406:7a0:206:0::b",
-      "kavlan-18": "2001:660:4406:8a0:206:0::b",
-      "kavlan-2": "2001:660:4406:281:6:0::b",
-      "kavlan-20": "2001:660:4406:3a0:206:0::b",
-      "kavlan-21": "2001:660:4406:6a0:206:0::b",
-      "kavlan-3": "2001:660:4406:282:6:0::b",
-      "kavlan-4": "2001:660:4406:290:6:0::b",
-      "kavlan-5": "2001:660:4406:291:6:0::b",
-      "kavlan-6": "2001:660:4406:292:6:0::b",
-      "kavlan-7": "2001:660:4406:293:6:0::b",
-      "kavlan-8": "2001:660:4406:294:6:0::b",
-      "kavlan-9": "2001:660:4406:295:6:0::b"
+      "kavlan-1": "2001:660:4406:280:6::b",
+      "kavlan-11": "2001:660:4406:1a0:206::b",
+      "kavlan-12": "2001:660:4406:2a0:206::b",
+      "kavlan-13": "2001:660:4406:4a0:206::b",
+      "kavlan-14": "2001:660:4406:5a0:206::b",
+      "kavlan-16": "2001:660:4406:7a0:206::b",
+      "kavlan-18": "2001:660:4406:8a0:206::b",
+      "kavlan-2": "2001:660:4406:281:6::b",
+      "kavlan-20": "2001:660:4406:3a0:206::b",
+      "kavlan-21": "2001:660:4406:6a0:206::b",
+      "kavlan-3": "2001:660:4406:282:6::b",
+      "kavlan-4": "2001:660:4406:290:6::b",
+      "kavlan-5": "2001:660:4406:291:6::b",
+      "kavlan-6": "2001:660:4406:292:6::b",
+      "kavlan-7": "2001:660:4406:293:6::b",
+      "kavlan-8": "2001:660:4406:294:6::b",
+      "kavlan-9": "2001:660:4406:295:6::b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:6:1::b",
-      "kavlan-11": "2001:660:4406:1a0:206:1::b",
-      "kavlan-12": "2001:660:4406:2a0:206:1::b",
-      "kavlan-13": "2001:660:4406:4a0:206:1::b",
-      "kavlan-14": "2001:660:4406:5a0:206:1::b",
-      "kavlan-16": "2001:660:4406:7a0:206:1::b",
-      "kavlan-18": "2001:660:4406:8a0:206:1::b",
-      "kavlan-2": "2001:660:4406:281:6:1::b",
-      "kavlan-20": "2001:660:4406:3a0:206:1::b",
-      "kavlan-21": "2001:660:4406:6a0:206:1::b",
-      "kavlan-3": "2001:660:4406:282:6:1::b",
-      "kavlan-4": "2001:660:4406:290:6:1::b",
-      "kavlan-5": "2001:660:4406:291:6:1::b",
-      "kavlan-6": "2001:660:4406:292:6:1::b",
-      "kavlan-7": "2001:660:4406:293:6:1::b",
-      "kavlan-8": "2001:660:4406:294:6:1::b",
-      "kavlan-9": "2001:660:4406:295:6:1::b"
+      "kavlan-1": "2001:660:4406:280:6:1:0:b",
+      "kavlan-11": "2001:660:4406:1a0:206:1:0:b",
+      "kavlan-12": "2001:660:4406:2a0:206:1:0:b",
+      "kavlan-13": "2001:660:4406:4a0:206:1:0:b",
+      "kavlan-14": "2001:660:4406:5a0:206:1:0:b",
+      "kavlan-16": "2001:660:4406:7a0:206:1:0:b",
+      "kavlan-18": "2001:660:4406:8a0:206:1:0:b",
+      "kavlan-2": "2001:660:4406:281:6:1:0:b",
+      "kavlan-20": "2001:660:4406:3a0:206:1:0:b",
+      "kavlan-21": "2001:660:4406:6a0:206:1:0:b",
+      "kavlan-3": "2001:660:4406:282:6:1:0:b",
+      "kavlan-4": "2001:660:4406:290:6:1:0:b",
+      "kavlan-5": "2001:660:4406:291:6:1:0:b",
+      "kavlan-6": "2001:660:4406:292:6:1:0:b",
+      "kavlan-7": "2001:660:4406:293:6:1:0:b",
+      "kavlan-8": "2001:660:4406:294:6:1:0:b",
+      "kavlan-9": "2001:660:4406:295:6:1:0:b"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.11",
-      "ip6": "2001:660:4406:200:6:0::b",
+      "ip6": "2001:660:4406:200:6::b",
       "kavlan": true,
       "mac": "24:6e:96:2c:be:d8",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.111",
-      "ip6": "2001:660:4406:200:6:1::b",
+      "ip6": "2001:660:4406:200:6:1:0:b",
       "kavlan": true,
       "mac": "24:6e:96:2c:be:da",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-12.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-12.json
index 2d58aaa58adec7f079b1110b077957c67bc022ae..c5ba34ee9c75dc4262cb7357f57cb0ae1daa40da 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-12.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-12.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6:0::c",
-      "kavlan-11": "2001:660:4406:1a0:206:0::c",
-      "kavlan-12": "2001:660:4406:2a0:206:0::c",
-      "kavlan-13": "2001:660:4406:4a0:206:0::c",
-      "kavlan-14": "2001:660:4406:5a0:206:0::c",
-      "kavlan-16": "2001:660:4406:7a0:206:0::c",
-      "kavlan-18": "2001:660:4406:8a0:206:0::c",
-      "kavlan-2": "2001:660:4406:281:6:0::c",
-      "kavlan-20": "2001:660:4406:3a0:206:0::c",
-      "kavlan-21": "2001:660:4406:6a0:206:0::c",
-      "kavlan-3": "2001:660:4406:282:6:0::c",
-      "kavlan-4": "2001:660:4406:290:6:0::c",
-      "kavlan-5": "2001:660:4406:291:6:0::c",
-      "kavlan-6": "2001:660:4406:292:6:0::c",
-      "kavlan-7": "2001:660:4406:293:6:0::c",
-      "kavlan-8": "2001:660:4406:294:6:0::c",
-      "kavlan-9": "2001:660:4406:295:6:0::c"
+      "kavlan-1": "2001:660:4406:280:6::c",
+      "kavlan-11": "2001:660:4406:1a0:206::c",
+      "kavlan-12": "2001:660:4406:2a0:206::c",
+      "kavlan-13": "2001:660:4406:4a0:206::c",
+      "kavlan-14": "2001:660:4406:5a0:206::c",
+      "kavlan-16": "2001:660:4406:7a0:206::c",
+      "kavlan-18": "2001:660:4406:8a0:206::c",
+      "kavlan-2": "2001:660:4406:281:6::c",
+      "kavlan-20": "2001:660:4406:3a0:206::c",
+      "kavlan-21": "2001:660:4406:6a0:206::c",
+      "kavlan-3": "2001:660:4406:282:6::c",
+      "kavlan-4": "2001:660:4406:290:6::c",
+      "kavlan-5": "2001:660:4406:291:6::c",
+      "kavlan-6": "2001:660:4406:292:6::c",
+      "kavlan-7": "2001:660:4406:293:6::c",
+      "kavlan-8": "2001:660:4406:294:6::c",
+      "kavlan-9": "2001:660:4406:295:6::c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:6:1::c",
-      "kavlan-11": "2001:660:4406:1a0:206:1::c",
-      "kavlan-12": "2001:660:4406:2a0:206:1::c",
-      "kavlan-13": "2001:660:4406:4a0:206:1::c",
-      "kavlan-14": "2001:660:4406:5a0:206:1::c",
-      "kavlan-16": "2001:660:4406:7a0:206:1::c",
-      "kavlan-18": "2001:660:4406:8a0:206:1::c",
-      "kavlan-2": "2001:660:4406:281:6:1::c",
-      "kavlan-20": "2001:660:4406:3a0:206:1::c",
-      "kavlan-21": "2001:660:4406:6a0:206:1::c",
-      "kavlan-3": "2001:660:4406:282:6:1::c",
-      "kavlan-4": "2001:660:4406:290:6:1::c",
-      "kavlan-5": "2001:660:4406:291:6:1::c",
-      "kavlan-6": "2001:660:4406:292:6:1::c",
-      "kavlan-7": "2001:660:4406:293:6:1::c",
-      "kavlan-8": "2001:660:4406:294:6:1::c",
-      "kavlan-9": "2001:660:4406:295:6:1::c"
+      "kavlan-1": "2001:660:4406:280:6:1:0:c",
+      "kavlan-11": "2001:660:4406:1a0:206:1:0:c",
+      "kavlan-12": "2001:660:4406:2a0:206:1:0:c",
+      "kavlan-13": "2001:660:4406:4a0:206:1:0:c",
+      "kavlan-14": "2001:660:4406:5a0:206:1:0:c",
+      "kavlan-16": "2001:660:4406:7a0:206:1:0:c",
+      "kavlan-18": "2001:660:4406:8a0:206:1:0:c",
+      "kavlan-2": "2001:660:4406:281:6:1:0:c",
+      "kavlan-20": "2001:660:4406:3a0:206:1:0:c",
+      "kavlan-21": "2001:660:4406:6a0:206:1:0:c",
+      "kavlan-3": "2001:660:4406:282:6:1:0:c",
+      "kavlan-4": "2001:660:4406:290:6:1:0:c",
+      "kavlan-5": "2001:660:4406:291:6:1:0:c",
+      "kavlan-6": "2001:660:4406:292:6:1:0:c",
+      "kavlan-7": "2001:660:4406:293:6:1:0:c",
+      "kavlan-8": "2001:660:4406:294:6:1:0:c",
+      "kavlan-9": "2001:660:4406:295:6:1:0:c"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.12",
-      "ip6": "2001:660:4406:200:6:0::c",
+      "ip6": "2001:660:4406:200:6::c",
       "kavlan": true,
       "mac": "24:6e:96:2c:bc:b0",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.112",
-      "ip6": "2001:660:4406:200:6:1::c",
+      "ip6": "2001:660:4406:200:6:1:0:c",
       "kavlan": true,
       "mac": "24:6e:96:2c:bc:b2",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-13.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-13.json
index ab4889f797fe2ec5966a65b7c722be6bb7f86bff..bf38793867e8d76cf09cc02875de57ca15e058d0 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-13.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-13.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6:0::d",
-      "kavlan-11": "2001:660:4406:1a0:206:0::d",
-      "kavlan-12": "2001:660:4406:2a0:206:0::d",
-      "kavlan-13": "2001:660:4406:4a0:206:0::d",
-      "kavlan-14": "2001:660:4406:5a0:206:0::d",
-      "kavlan-16": "2001:660:4406:7a0:206:0::d",
-      "kavlan-18": "2001:660:4406:8a0:206:0::d",
-      "kavlan-2": "2001:660:4406:281:6:0::d",
-      "kavlan-20": "2001:660:4406:3a0:206:0::d",
-      "kavlan-21": "2001:660:4406:6a0:206:0::d",
-      "kavlan-3": "2001:660:4406:282:6:0::d",
-      "kavlan-4": "2001:660:4406:290:6:0::d",
-      "kavlan-5": "2001:660:4406:291:6:0::d",
-      "kavlan-6": "2001:660:4406:292:6:0::d",
-      "kavlan-7": "2001:660:4406:293:6:0::d",
-      "kavlan-8": "2001:660:4406:294:6:0::d",
-      "kavlan-9": "2001:660:4406:295:6:0::d"
+      "kavlan-1": "2001:660:4406:280:6::d",
+      "kavlan-11": "2001:660:4406:1a0:206::d",
+      "kavlan-12": "2001:660:4406:2a0:206::d",
+      "kavlan-13": "2001:660:4406:4a0:206::d",
+      "kavlan-14": "2001:660:4406:5a0:206::d",
+      "kavlan-16": "2001:660:4406:7a0:206::d",
+      "kavlan-18": "2001:660:4406:8a0:206::d",
+      "kavlan-2": "2001:660:4406:281:6::d",
+      "kavlan-20": "2001:660:4406:3a0:206::d",
+      "kavlan-21": "2001:660:4406:6a0:206::d",
+      "kavlan-3": "2001:660:4406:282:6::d",
+      "kavlan-4": "2001:660:4406:290:6::d",
+      "kavlan-5": "2001:660:4406:291:6::d",
+      "kavlan-6": "2001:660:4406:292:6::d",
+      "kavlan-7": "2001:660:4406:293:6::d",
+      "kavlan-8": "2001:660:4406:294:6::d",
+      "kavlan-9": "2001:660:4406:295:6::d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:6:1::d",
-      "kavlan-11": "2001:660:4406:1a0:206:1::d",
-      "kavlan-12": "2001:660:4406:2a0:206:1::d",
-      "kavlan-13": "2001:660:4406:4a0:206:1::d",
-      "kavlan-14": "2001:660:4406:5a0:206:1::d",
-      "kavlan-16": "2001:660:4406:7a0:206:1::d",
-      "kavlan-18": "2001:660:4406:8a0:206:1::d",
-      "kavlan-2": "2001:660:4406:281:6:1::d",
-      "kavlan-20": "2001:660:4406:3a0:206:1::d",
-      "kavlan-21": "2001:660:4406:6a0:206:1::d",
-      "kavlan-3": "2001:660:4406:282:6:1::d",
-      "kavlan-4": "2001:660:4406:290:6:1::d",
-      "kavlan-5": "2001:660:4406:291:6:1::d",
-      "kavlan-6": "2001:660:4406:292:6:1::d",
-      "kavlan-7": "2001:660:4406:293:6:1::d",
-      "kavlan-8": "2001:660:4406:294:6:1::d",
-      "kavlan-9": "2001:660:4406:295:6:1::d"
+      "kavlan-1": "2001:660:4406:280:6:1:0:d",
+      "kavlan-11": "2001:660:4406:1a0:206:1:0:d",
+      "kavlan-12": "2001:660:4406:2a0:206:1:0:d",
+      "kavlan-13": "2001:660:4406:4a0:206:1:0:d",
+      "kavlan-14": "2001:660:4406:5a0:206:1:0:d",
+      "kavlan-16": "2001:660:4406:7a0:206:1:0:d",
+      "kavlan-18": "2001:660:4406:8a0:206:1:0:d",
+      "kavlan-2": "2001:660:4406:281:6:1:0:d",
+      "kavlan-20": "2001:660:4406:3a0:206:1:0:d",
+      "kavlan-21": "2001:660:4406:6a0:206:1:0:d",
+      "kavlan-3": "2001:660:4406:282:6:1:0:d",
+      "kavlan-4": "2001:660:4406:290:6:1:0:d",
+      "kavlan-5": "2001:660:4406:291:6:1:0:d",
+      "kavlan-6": "2001:660:4406:292:6:1:0:d",
+      "kavlan-7": "2001:660:4406:293:6:1:0:d",
+      "kavlan-8": "2001:660:4406:294:6:1:0:d",
+      "kavlan-9": "2001:660:4406:295:6:1:0:d"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.13",
-      "ip6": "2001:660:4406:200:6:0::d",
+      "ip6": "2001:660:4406:200:6::d",
       "kavlan": true,
       "mac": "24:6e:96:2c:85:c8",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.113",
-      "ip6": "2001:660:4406:200:6:1::d",
+      "ip6": "2001:660:4406:200:6:1:0:d",
       "kavlan": true,
       "mac": "24:6e:96:2c:85:ca",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-14.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-14.json
index 3601931c3189f158d1cea70fa6c76b222e82c984..c0509af5150c8cad383c0720d8be426c918f0a2b 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-14.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-14.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6:0::e",
-      "kavlan-11": "2001:660:4406:1a0:206:0::e",
-      "kavlan-12": "2001:660:4406:2a0:206:0::e",
-      "kavlan-13": "2001:660:4406:4a0:206:0::e",
-      "kavlan-14": "2001:660:4406:5a0:206:0::e",
-      "kavlan-16": "2001:660:4406:7a0:206:0::e",
-      "kavlan-18": "2001:660:4406:8a0:206:0::e",
-      "kavlan-2": "2001:660:4406:281:6:0::e",
-      "kavlan-20": "2001:660:4406:3a0:206:0::e",
-      "kavlan-21": "2001:660:4406:6a0:206:0::e",
-      "kavlan-3": "2001:660:4406:282:6:0::e",
-      "kavlan-4": "2001:660:4406:290:6:0::e",
-      "kavlan-5": "2001:660:4406:291:6:0::e",
-      "kavlan-6": "2001:660:4406:292:6:0::e",
-      "kavlan-7": "2001:660:4406:293:6:0::e",
-      "kavlan-8": "2001:660:4406:294:6:0::e",
-      "kavlan-9": "2001:660:4406:295:6:0::e"
+      "kavlan-1": "2001:660:4406:280:6::e",
+      "kavlan-11": "2001:660:4406:1a0:206::e",
+      "kavlan-12": "2001:660:4406:2a0:206::e",
+      "kavlan-13": "2001:660:4406:4a0:206::e",
+      "kavlan-14": "2001:660:4406:5a0:206::e",
+      "kavlan-16": "2001:660:4406:7a0:206::e",
+      "kavlan-18": "2001:660:4406:8a0:206::e",
+      "kavlan-2": "2001:660:4406:281:6::e",
+      "kavlan-20": "2001:660:4406:3a0:206::e",
+      "kavlan-21": "2001:660:4406:6a0:206::e",
+      "kavlan-3": "2001:660:4406:282:6::e",
+      "kavlan-4": "2001:660:4406:290:6::e",
+      "kavlan-5": "2001:660:4406:291:6::e",
+      "kavlan-6": "2001:660:4406:292:6::e",
+      "kavlan-7": "2001:660:4406:293:6::e",
+      "kavlan-8": "2001:660:4406:294:6::e",
+      "kavlan-9": "2001:660:4406:295:6::e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:6:1::e",
-      "kavlan-11": "2001:660:4406:1a0:206:1::e",
-      "kavlan-12": "2001:660:4406:2a0:206:1::e",
-      "kavlan-13": "2001:660:4406:4a0:206:1::e",
-      "kavlan-14": "2001:660:4406:5a0:206:1::e",
-      "kavlan-16": "2001:660:4406:7a0:206:1::e",
-      "kavlan-18": "2001:660:4406:8a0:206:1::e",
-      "kavlan-2": "2001:660:4406:281:6:1::e",
-      "kavlan-20": "2001:660:4406:3a0:206:1::e",
-      "kavlan-21": "2001:660:4406:6a0:206:1::e",
-      "kavlan-3": "2001:660:4406:282:6:1::e",
-      "kavlan-4": "2001:660:4406:290:6:1::e",
-      "kavlan-5": "2001:660:4406:291:6:1::e",
-      "kavlan-6": "2001:660:4406:292:6:1::e",
-      "kavlan-7": "2001:660:4406:293:6:1::e",
-      "kavlan-8": "2001:660:4406:294:6:1::e",
-      "kavlan-9": "2001:660:4406:295:6:1::e"
+      "kavlan-1": "2001:660:4406:280:6:1:0:e",
+      "kavlan-11": "2001:660:4406:1a0:206:1:0:e",
+      "kavlan-12": "2001:660:4406:2a0:206:1:0:e",
+      "kavlan-13": "2001:660:4406:4a0:206:1:0:e",
+      "kavlan-14": "2001:660:4406:5a0:206:1:0:e",
+      "kavlan-16": "2001:660:4406:7a0:206:1:0:e",
+      "kavlan-18": "2001:660:4406:8a0:206:1:0:e",
+      "kavlan-2": "2001:660:4406:281:6:1:0:e",
+      "kavlan-20": "2001:660:4406:3a0:206:1:0:e",
+      "kavlan-21": "2001:660:4406:6a0:206:1:0:e",
+      "kavlan-3": "2001:660:4406:282:6:1:0:e",
+      "kavlan-4": "2001:660:4406:290:6:1:0:e",
+      "kavlan-5": "2001:660:4406:291:6:1:0:e",
+      "kavlan-6": "2001:660:4406:292:6:1:0:e",
+      "kavlan-7": "2001:660:4406:293:6:1:0:e",
+      "kavlan-8": "2001:660:4406:294:6:1:0:e",
+      "kavlan-9": "2001:660:4406:295:6:1:0:e"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.14",
-      "ip6": "2001:660:4406:200:6:0::e",
+      "ip6": "2001:660:4406:200:6::e",
       "kavlan": true,
       "mac": "24:6e:96:2c:be:88",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.114",
-      "ip6": "2001:660:4406:200:6:1::e",
+      "ip6": "2001:660:4406:200:6:1:0:e",
       "kavlan": true,
       "mac": "24:6e:96:2c:be:8a",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-15.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-15.json
index 052bd2371a51d57f024848878ae7cf20958416a7..bc87791513aa5cd516314ea9be2c8cef86c81375 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-15.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-15.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6:0::f",
-      "kavlan-11": "2001:660:4406:1a0:206:0::f",
-      "kavlan-12": "2001:660:4406:2a0:206:0::f",
-      "kavlan-13": "2001:660:4406:4a0:206:0::f",
-      "kavlan-14": "2001:660:4406:5a0:206:0::f",
-      "kavlan-16": "2001:660:4406:7a0:206:0::f",
-      "kavlan-18": "2001:660:4406:8a0:206:0::f",
-      "kavlan-2": "2001:660:4406:281:6:0::f",
-      "kavlan-20": "2001:660:4406:3a0:206:0::f",
-      "kavlan-21": "2001:660:4406:6a0:206:0::f",
-      "kavlan-3": "2001:660:4406:282:6:0::f",
-      "kavlan-4": "2001:660:4406:290:6:0::f",
-      "kavlan-5": "2001:660:4406:291:6:0::f",
-      "kavlan-6": "2001:660:4406:292:6:0::f",
-      "kavlan-7": "2001:660:4406:293:6:0::f",
-      "kavlan-8": "2001:660:4406:294:6:0::f",
-      "kavlan-9": "2001:660:4406:295:6:0::f"
+      "kavlan-1": "2001:660:4406:280:6::f",
+      "kavlan-11": "2001:660:4406:1a0:206::f",
+      "kavlan-12": "2001:660:4406:2a0:206::f",
+      "kavlan-13": "2001:660:4406:4a0:206::f",
+      "kavlan-14": "2001:660:4406:5a0:206::f",
+      "kavlan-16": "2001:660:4406:7a0:206::f",
+      "kavlan-18": "2001:660:4406:8a0:206::f",
+      "kavlan-2": "2001:660:4406:281:6::f",
+      "kavlan-20": "2001:660:4406:3a0:206::f",
+      "kavlan-21": "2001:660:4406:6a0:206::f",
+      "kavlan-3": "2001:660:4406:282:6::f",
+      "kavlan-4": "2001:660:4406:290:6::f",
+      "kavlan-5": "2001:660:4406:291:6::f",
+      "kavlan-6": "2001:660:4406:292:6::f",
+      "kavlan-7": "2001:660:4406:293:6::f",
+      "kavlan-8": "2001:660:4406:294:6::f",
+      "kavlan-9": "2001:660:4406:295:6::f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:6:1::f",
-      "kavlan-11": "2001:660:4406:1a0:206:1::f",
-      "kavlan-12": "2001:660:4406:2a0:206:1::f",
-      "kavlan-13": "2001:660:4406:4a0:206:1::f",
-      "kavlan-14": "2001:660:4406:5a0:206:1::f",
-      "kavlan-16": "2001:660:4406:7a0:206:1::f",
-      "kavlan-18": "2001:660:4406:8a0:206:1::f",
-      "kavlan-2": "2001:660:4406:281:6:1::f",
-      "kavlan-20": "2001:660:4406:3a0:206:1::f",
-      "kavlan-21": "2001:660:4406:6a0:206:1::f",
-      "kavlan-3": "2001:660:4406:282:6:1::f",
-      "kavlan-4": "2001:660:4406:290:6:1::f",
-      "kavlan-5": "2001:660:4406:291:6:1::f",
-      "kavlan-6": "2001:660:4406:292:6:1::f",
-      "kavlan-7": "2001:660:4406:293:6:1::f",
-      "kavlan-8": "2001:660:4406:294:6:1::f",
-      "kavlan-9": "2001:660:4406:295:6:1::f"
+      "kavlan-1": "2001:660:4406:280:6:1:0:f",
+      "kavlan-11": "2001:660:4406:1a0:206:1:0:f",
+      "kavlan-12": "2001:660:4406:2a0:206:1:0:f",
+      "kavlan-13": "2001:660:4406:4a0:206:1:0:f",
+      "kavlan-14": "2001:660:4406:5a0:206:1:0:f",
+      "kavlan-16": "2001:660:4406:7a0:206:1:0:f",
+      "kavlan-18": "2001:660:4406:8a0:206:1:0:f",
+      "kavlan-2": "2001:660:4406:281:6:1:0:f",
+      "kavlan-20": "2001:660:4406:3a0:206:1:0:f",
+      "kavlan-21": "2001:660:4406:6a0:206:1:0:f",
+      "kavlan-3": "2001:660:4406:282:6:1:0:f",
+      "kavlan-4": "2001:660:4406:290:6:1:0:f",
+      "kavlan-5": "2001:660:4406:291:6:1:0:f",
+      "kavlan-6": "2001:660:4406:292:6:1:0:f",
+      "kavlan-7": "2001:660:4406:293:6:1:0:f",
+      "kavlan-8": "2001:660:4406:294:6:1:0:f",
+      "kavlan-9": "2001:660:4406:295:6:1:0:f"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.15",
-      "ip6": "2001:660:4406:200:6:0::f",
+      "ip6": "2001:660:4406:200:6::f",
       "kavlan": true,
       "mac": "24:6e:96:2c:c0:50",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.115",
-      "ip6": "2001:660:4406:200:6:1::f",
+      "ip6": "2001:660:4406:200:6:1:0:f",
       "kavlan": true,
       "mac": "24:6e:96:2c:c0:52",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-2.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-2.json
index 7a8c6972e30413e9cf5ebb263f86131e9eda631a..4c1c3cebaf14806552f7768b84b53ec340c5836b 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-2.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-2.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6:0::2",
-      "kavlan-11": "2001:660:4406:1a0:206:0::2",
-      "kavlan-12": "2001:660:4406:2a0:206:0::2",
-      "kavlan-13": "2001:660:4406:4a0:206:0::2",
-      "kavlan-14": "2001:660:4406:5a0:206:0::2",
-      "kavlan-16": "2001:660:4406:7a0:206:0::2",
-      "kavlan-18": "2001:660:4406:8a0:206:0::2",
-      "kavlan-2": "2001:660:4406:281:6:0::2",
-      "kavlan-20": "2001:660:4406:3a0:206:0::2",
-      "kavlan-21": "2001:660:4406:6a0:206:0::2",
-      "kavlan-3": "2001:660:4406:282:6:0::2",
-      "kavlan-4": "2001:660:4406:290:6:0::2",
-      "kavlan-5": "2001:660:4406:291:6:0::2",
-      "kavlan-6": "2001:660:4406:292:6:0::2",
-      "kavlan-7": "2001:660:4406:293:6:0::2",
-      "kavlan-8": "2001:660:4406:294:6:0::2",
-      "kavlan-9": "2001:660:4406:295:6:0::2"
+      "kavlan-1": "2001:660:4406:280:6::2",
+      "kavlan-11": "2001:660:4406:1a0:206::2",
+      "kavlan-12": "2001:660:4406:2a0:206::2",
+      "kavlan-13": "2001:660:4406:4a0:206::2",
+      "kavlan-14": "2001:660:4406:5a0:206::2",
+      "kavlan-16": "2001:660:4406:7a0:206::2",
+      "kavlan-18": "2001:660:4406:8a0:206::2",
+      "kavlan-2": "2001:660:4406:281:6::2",
+      "kavlan-20": "2001:660:4406:3a0:206::2",
+      "kavlan-21": "2001:660:4406:6a0:206::2",
+      "kavlan-3": "2001:660:4406:282:6::2",
+      "kavlan-4": "2001:660:4406:290:6::2",
+      "kavlan-5": "2001:660:4406:291:6::2",
+      "kavlan-6": "2001:660:4406:292:6::2",
+      "kavlan-7": "2001:660:4406:293:6::2",
+      "kavlan-8": "2001:660:4406:294:6::2",
+      "kavlan-9": "2001:660:4406:295:6::2"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:6:1::2",
-      "kavlan-11": "2001:660:4406:1a0:206:1::2",
-      "kavlan-12": "2001:660:4406:2a0:206:1::2",
-      "kavlan-13": "2001:660:4406:4a0:206:1::2",
-      "kavlan-14": "2001:660:4406:5a0:206:1::2",
-      "kavlan-16": "2001:660:4406:7a0:206:1::2",
-      "kavlan-18": "2001:660:4406:8a0:206:1::2",
-      "kavlan-2": "2001:660:4406:281:6:1::2",
-      "kavlan-20": "2001:660:4406:3a0:206:1::2",
-      "kavlan-21": "2001:660:4406:6a0:206:1::2",
-      "kavlan-3": "2001:660:4406:282:6:1::2",
-      "kavlan-4": "2001:660:4406:290:6:1::2",
-      "kavlan-5": "2001:660:4406:291:6:1::2",
-      "kavlan-6": "2001:660:4406:292:6:1::2",
-      "kavlan-7": "2001:660:4406:293:6:1::2",
-      "kavlan-8": "2001:660:4406:294:6:1::2",
-      "kavlan-9": "2001:660:4406:295:6:1::2"
+      "kavlan-1": "2001:660:4406:280:6:1:0:2",
+      "kavlan-11": "2001:660:4406:1a0:206:1:0:2",
+      "kavlan-12": "2001:660:4406:2a0:206:1:0:2",
+      "kavlan-13": "2001:660:4406:4a0:206:1:0:2",
+      "kavlan-14": "2001:660:4406:5a0:206:1:0:2",
+      "kavlan-16": "2001:660:4406:7a0:206:1:0:2",
+      "kavlan-18": "2001:660:4406:8a0:206:1:0:2",
+      "kavlan-2": "2001:660:4406:281:6:1:0:2",
+      "kavlan-20": "2001:660:4406:3a0:206:1:0:2",
+      "kavlan-21": "2001:660:4406:6a0:206:1:0:2",
+      "kavlan-3": "2001:660:4406:282:6:1:0:2",
+      "kavlan-4": "2001:660:4406:290:6:1:0:2",
+      "kavlan-5": "2001:660:4406:291:6:1:0:2",
+      "kavlan-6": "2001:660:4406:292:6:1:0:2",
+      "kavlan-7": "2001:660:4406:293:6:1:0:2",
+      "kavlan-8": "2001:660:4406:294:6:1:0:2",
+      "kavlan-9": "2001:660:4406:295:6:1:0:2"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.2",
-      "ip6": "2001:660:4406:200:6:0::2",
+      "ip6": "2001:660:4406:200:6::2",
       "kavlan": true,
       "mac": "24:6e:96:2c:a5:80",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.102",
-      "ip6": "2001:660:4406:200:6:1::2",
+      "ip6": "2001:660:4406:200:6:1:0:2",
       "kavlan": true,
       "mac": "24:6e:96:2c:a5:82",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-3.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-3.json
index 1174037489cebc6a9d3b83bf59857256979a936d..5623409ecf157f97de2accaffe2685f93a9e651f 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-3.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-3.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6:0::3",
-      "kavlan-11": "2001:660:4406:1a0:206:0::3",
-      "kavlan-12": "2001:660:4406:2a0:206:0::3",
-      "kavlan-13": "2001:660:4406:4a0:206:0::3",
-      "kavlan-14": "2001:660:4406:5a0:206:0::3",
-      "kavlan-16": "2001:660:4406:7a0:206:0::3",
-      "kavlan-18": "2001:660:4406:8a0:206:0::3",
-      "kavlan-2": "2001:660:4406:281:6:0::3",
-      "kavlan-20": "2001:660:4406:3a0:206:0::3",
-      "kavlan-21": "2001:660:4406:6a0:206:0::3",
-      "kavlan-3": "2001:660:4406:282:6:0::3",
-      "kavlan-4": "2001:660:4406:290:6:0::3",
-      "kavlan-5": "2001:660:4406:291:6:0::3",
-      "kavlan-6": "2001:660:4406:292:6:0::3",
-      "kavlan-7": "2001:660:4406:293:6:0::3",
-      "kavlan-8": "2001:660:4406:294:6:0::3",
-      "kavlan-9": "2001:660:4406:295:6:0::3"
+      "kavlan-1": "2001:660:4406:280:6::3",
+      "kavlan-11": "2001:660:4406:1a0:206::3",
+      "kavlan-12": "2001:660:4406:2a0:206::3",
+      "kavlan-13": "2001:660:4406:4a0:206::3",
+      "kavlan-14": "2001:660:4406:5a0:206::3",
+      "kavlan-16": "2001:660:4406:7a0:206::3",
+      "kavlan-18": "2001:660:4406:8a0:206::3",
+      "kavlan-2": "2001:660:4406:281:6::3",
+      "kavlan-20": "2001:660:4406:3a0:206::3",
+      "kavlan-21": "2001:660:4406:6a0:206::3",
+      "kavlan-3": "2001:660:4406:282:6::3",
+      "kavlan-4": "2001:660:4406:290:6::3",
+      "kavlan-5": "2001:660:4406:291:6::3",
+      "kavlan-6": "2001:660:4406:292:6::3",
+      "kavlan-7": "2001:660:4406:293:6::3",
+      "kavlan-8": "2001:660:4406:294:6::3",
+      "kavlan-9": "2001:660:4406:295:6::3"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:6:1::3",
-      "kavlan-11": "2001:660:4406:1a0:206:1::3",
-      "kavlan-12": "2001:660:4406:2a0:206:1::3",
-      "kavlan-13": "2001:660:4406:4a0:206:1::3",
-      "kavlan-14": "2001:660:4406:5a0:206:1::3",
-      "kavlan-16": "2001:660:4406:7a0:206:1::3",
-      "kavlan-18": "2001:660:4406:8a0:206:1::3",
-      "kavlan-2": "2001:660:4406:281:6:1::3",
-      "kavlan-20": "2001:660:4406:3a0:206:1::3",
-      "kavlan-21": "2001:660:4406:6a0:206:1::3",
-      "kavlan-3": "2001:660:4406:282:6:1::3",
-      "kavlan-4": "2001:660:4406:290:6:1::3",
-      "kavlan-5": "2001:660:4406:291:6:1::3",
-      "kavlan-6": "2001:660:4406:292:6:1::3",
-      "kavlan-7": "2001:660:4406:293:6:1::3",
-      "kavlan-8": "2001:660:4406:294:6:1::3",
-      "kavlan-9": "2001:660:4406:295:6:1::3"
+      "kavlan-1": "2001:660:4406:280:6:1:0:3",
+      "kavlan-11": "2001:660:4406:1a0:206:1:0:3",
+      "kavlan-12": "2001:660:4406:2a0:206:1:0:3",
+      "kavlan-13": "2001:660:4406:4a0:206:1:0:3",
+      "kavlan-14": "2001:660:4406:5a0:206:1:0:3",
+      "kavlan-16": "2001:660:4406:7a0:206:1:0:3",
+      "kavlan-18": "2001:660:4406:8a0:206:1:0:3",
+      "kavlan-2": "2001:660:4406:281:6:1:0:3",
+      "kavlan-20": "2001:660:4406:3a0:206:1:0:3",
+      "kavlan-21": "2001:660:4406:6a0:206:1:0:3",
+      "kavlan-3": "2001:660:4406:282:6:1:0:3",
+      "kavlan-4": "2001:660:4406:290:6:1:0:3",
+      "kavlan-5": "2001:660:4406:291:6:1:0:3",
+      "kavlan-6": "2001:660:4406:292:6:1:0:3",
+      "kavlan-7": "2001:660:4406:293:6:1:0:3",
+      "kavlan-8": "2001:660:4406:294:6:1:0:3",
+      "kavlan-9": "2001:660:4406:295:6:1:0:3"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.3",
-      "ip6": "2001:660:4406:200:6:0::3",
+      "ip6": "2001:660:4406:200:6::3",
       "kavlan": true,
       "mac": "24:6e:96:2c:85:48",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.103",
-      "ip6": "2001:660:4406:200:6:1::3",
+      "ip6": "2001:660:4406:200:6:1:0:3",
       "kavlan": true,
       "mac": "24:6e:96:2c:85:4a",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-4.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-4.json
index 19349d81f4607b2d121ec6eb319fe4fe94bb45ec..1c8a1a84dbfcbcdef41875599ad89179a751b472 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-4.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-4.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6:0::4",
-      "kavlan-11": "2001:660:4406:1a0:206:0::4",
-      "kavlan-12": "2001:660:4406:2a0:206:0::4",
-      "kavlan-13": "2001:660:4406:4a0:206:0::4",
-      "kavlan-14": "2001:660:4406:5a0:206:0::4",
-      "kavlan-16": "2001:660:4406:7a0:206:0::4",
-      "kavlan-18": "2001:660:4406:8a0:206:0::4",
-      "kavlan-2": "2001:660:4406:281:6:0::4",
-      "kavlan-20": "2001:660:4406:3a0:206:0::4",
-      "kavlan-21": "2001:660:4406:6a0:206:0::4",
-      "kavlan-3": "2001:660:4406:282:6:0::4",
-      "kavlan-4": "2001:660:4406:290:6:0::4",
-      "kavlan-5": "2001:660:4406:291:6:0::4",
-      "kavlan-6": "2001:660:4406:292:6:0::4",
-      "kavlan-7": "2001:660:4406:293:6:0::4",
-      "kavlan-8": "2001:660:4406:294:6:0::4",
-      "kavlan-9": "2001:660:4406:295:6:0::4"
+      "kavlan-1": "2001:660:4406:280:6::4",
+      "kavlan-11": "2001:660:4406:1a0:206::4",
+      "kavlan-12": "2001:660:4406:2a0:206::4",
+      "kavlan-13": "2001:660:4406:4a0:206::4",
+      "kavlan-14": "2001:660:4406:5a0:206::4",
+      "kavlan-16": "2001:660:4406:7a0:206::4",
+      "kavlan-18": "2001:660:4406:8a0:206::4",
+      "kavlan-2": "2001:660:4406:281:6::4",
+      "kavlan-20": "2001:660:4406:3a0:206::4",
+      "kavlan-21": "2001:660:4406:6a0:206::4",
+      "kavlan-3": "2001:660:4406:282:6::4",
+      "kavlan-4": "2001:660:4406:290:6::4",
+      "kavlan-5": "2001:660:4406:291:6::4",
+      "kavlan-6": "2001:660:4406:292:6::4",
+      "kavlan-7": "2001:660:4406:293:6::4",
+      "kavlan-8": "2001:660:4406:294:6::4",
+      "kavlan-9": "2001:660:4406:295:6::4"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:6:1::4",
-      "kavlan-11": "2001:660:4406:1a0:206:1::4",
-      "kavlan-12": "2001:660:4406:2a0:206:1::4",
-      "kavlan-13": "2001:660:4406:4a0:206:1::4",
-      "kavlan-14": "2001:660:4406:5a0:206:1::4",
-      "kavlan-16": "2001:660:4406:7a0:206:1::4",
-      "kavlan-18": "2001:660:4406:8a0:206:1::4",
-      "kavlan-2": "2001:660:4406:281:6:1::4",
-      "kavlan-20": "2001:660:4406:3a0:206:1::4",
-      "kavlan-21": "2001:660:4406:6a0:206:1::4",
-      "kavlan-3": "2001:660:4406:282:6:1::4",
-      "kavlan-4": "2001:660:4406:290:6:1::4",
-      "kavlan-5": "2001:660:4406:291:6:1::4",
-      "kavlan-6": "2001:660:4406:292:6:1::4",
-      "kavlan-7": "2001:660:4406:293:6:1::4",
-      "kavlan-8": "2001:660:4406:294:6:1::4",
-      "kavlan-9": "2001:660:4406:295:6:1::4"
+      "kavlan-1": "2001:660:4406:280:6:1:0:4",
+      "kavlan-11": "2001:660:4406:1a0:206:1:0:4",
+      "kavlan-12": "2001:660:4406:2a0:206:1:0:4",
+      "kavlan-13": "2001:660:4406:4a0:206:1:0:4",
+      "kavlan-14": "2001:660:4406:5a0:206:1:0:4",
+      "kavlan-16": "2001:660:4406:7a0:206:1:0:4",
+      "kavlan-18": "2001:660:4406:8a0:206:1:0:4",
+      "kavlan-2": "2001:660:4406:281:6:1:0:4",
+      "kavlan-20": "2001:660:4406:3a0:206:1:0:4",
+      "kavlan-21": "2001:660:4406:6a0:206:1:0:4",
+      "kavlan-3": "2001:660:4406:282:6:1:0:4",
+      "kavlan-4": "2001:660:4406:290:6:1:0:4",
+      "kavlan-5": "2001:660:4406:291:6:1:0:4",
+      "kavlan-6": "2001:660:4406:292:6:1:0:4",
+      "kavlan-7": "2001:660:4406:293:6:1:0:4",
+      "kavlan-8": "2001:660:4406:294:6:1:0:4",
+      "kavlan-9": "2001:660:4406:295:6:1:0:4"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.4",
-      "ip6": "2001:660:4406:200:6:0::4",
+      "ip6": "2001:660:4406:200:6::4",
       "kavlan": true,
       "mac": "24:6e:96:2c:98:b0",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.104",
-      "ip6": "2001:660:4406:200:6:1::4",
+      "ip6": "2001:660:4406:200:6:1:0:4",
       "kavlan": true,
       "mac": "24:6e:96:2c:98:b2",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-5.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-5.json
index c0f071a7fa2bd37597c5f9d8bf5a857813805936..8ece5d16401a6c2cccf3d19b04569d030744c51a 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-5.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-5.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6:0::5",
-      "kavlan-11": "2001:660:4406:1a0:206:0::5",
-      "kavlan-12": "2001:660:4406:2a0:206:0::5",
-      "kavlan-13": "2001:660:4406:4a0:206:0::5",
-      "kavlan-14": "2001:660:4406:5a0:206:0::5",
-      "kavlan-16": "2001:660:4406:7a0:206:0::5",
-      "kavlan-18": "2001:660:4406:8a0:206:0::5",
-      "kavlan-2": "2001:660:4406:281:6:0::5",
-      "kavlan-20": "2001:660:4406:3a0:206:0::5",
-      "kavlan-21": "2001:660:4406:6a0:206:0::5",
-      "kavlan-3": "2001:660:4406:282:6:0::5",
-      "kavlan-4": "2001:660:4406:290:6:0::5",
-      "kavlan-5": "2001:660:4406:291:6:0::5",
-      "kavlan-6": "2001:660:4406:292:6:0::5",
-      "kavlan-7": "2001:660:4406:293:6:0::5",
-      "kavlan-8": "2001:660:4406:294:6:0::5",
-      "kavlan-9": "2001:660:4406:295:6:0::5"
+      "kavlan-1": "2001:660:4406:280:6::5",
+      "kavlan-11": "2001:660:4406:1a0:206::5",
+      "kavlan-12": "2001:660:4406:2a0:206::5",
+      "kavlan-13": "2001:660:4406:4a0:206::5",
+      "kavlan-14": "2001:660:4406:5a0:206::5",
+      "kavlan-16": "2001:660:4406:7a0:206::5",
+      "kavlan-18": "2001:660:4406:8a0:206::5",
+      "kavlan-2": "2001:660:4406:281:6::5",
+      "kavlan-20": "2001:660:4406:3a0:206::5",
+      "kavlan-21": "2001:660:4406:6a0:206::5",
+      "kavlan-3": "2001:660:4406:282:6::5",
+      "kavlan-4": "2001:660:4406:290:6::5",
+      "kavlan-5": "2001:660:4406:291:6::5",
+      "kavlan-6": "2001:660:4406:292:6::5",
+      "kavlan-7": "2001:660:4406:293:6::5",
+      "kavlan-8": "2001:660:4406:294:6::5",
+      "kavlan-9": "2001:660:4406:295:6::5"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:6:1::5",
-      "kavlan-11": "2001:660:4406:1a0:206:1::5",
-      "kavlan-12": "2001:660:4406:2a0:206:1::5",
-      "kavlan-13": "2001:660:4406:4a0:206:1::5",
-      "kavlan-14": "2001:660:4406:5a0:206:1::5",
-      "kavlan-16": "2001:660:4406:7a0:206:1::5",
-      "kavlan-18": "2001:660:4406:8a0:206:1::5",
-      "kavlan-2": "2001:660:4406:281:6:1::5",
-      "kavlan-20": "2001:660:4406:3a0:206:1::5",
-      "kavlan-21": "2001:660:4406:6a0:206:1::5",
-      "kavlan-3": "2001:660:4406:282:6:1::5",
-      "kavlan-4": "2001:660:4406:290:6:1::5",
-      "kavlan-5": "2001:660:4406:291:6:1::5",
-      "kavlan-6": "2001:660:4406:292:6:1::5",
-      "kavlan-7": "2001:660:4406:293:6:1::5",
-      "kavlan-8": "2001:660:4406:294:6:1::5",
-      "kavlan-9": "2001:660:4406:295:6:1::5"
+      "kavlan-1": "2001:660:4406:280:6:1:0:5",
+      "kavlan-11": "2001:660:4406:1a0:206:1:0:5",
+      "kavlan-12": "2001:660:4406:2a0:206:1:0:5",
+      "kavlan-13": "2001:660:4406:4a0:206:1:0:5",
+      "kavlan-14": "2001:660:4406:5a0:206:1:0:5",
+      "kavlan-16": "2001:660:4406:7a0:206:1:0:5",
+      "kavlan-18": "2001:660:4406:8a0:206:1:0:5",
+      "kavlan-2": "2001:660:4406:281:6:1:0:5",
+      "kavlan-20": "2001:660:4406:3a0:206:1:0:5",
+      "kavlan-21": "2001:660:4406:6a0:206:1:0:5",
+      "kavlan-3": "2001:660:4406:282:6:1:0:5",
+      "kavlan-4": "2001:660:4406:290:6:1:0:5",
+      "kavlan-5": "2001:660:4406:291:6:1:0:5",
+      "kavlan-6": "2001:660:4406:292:6:1:0:5",
+      "kavlan-7": "2001:660:4406:293:6:1:0:5",
+      "kavlan-8": "2001:660:4406:294:6:1:0:5",
+      "kavlan-9": "2001:660:4406:295:6:1:0:5"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.5",
-      "ip6": "2001:660:4406:200:6:0::5",
+      "ip6": "2001:660:4406:200:6::5",
       "kavlan": true,
       "mac": "24:6e:96:2c:b5:40",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.105",
-      "ip6": "2001:660:4406:200:6:1::5",
+      "ip6": "2001:660:4406:200:6:1:0:5",
       "kavlan": true,
       "mac": "24:6e:96:2c:b5:42",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-6.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-6.json
index 2c2cb1ff5f33a80ece83449c282769635c6e37d3..1744946cbe2c7df4cfb805f506855bc9dcfcc4b1 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-6.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-6.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6:0::6",
-      "kavlan-11": "2001:660:4406:1a0:206:0::6",
-      "kavlan-12": "2001:660:4406:2a0:206:0::6",
-      "kavlan-13": "2001:660:4406:4a0:206:0::6",
-      "kavlan-14": "2001:660:4406:5a0:206:0::6",
-      "kavlan-16": "2001:660:4406:7a0:206:0::6",
-      "kavlan-18": "2001:660:4406:8a0:206:0::6",
-      "kavlan-2": "2001:660:4406:281:6:0::6",
-      "kavlan-20": "2001:660:4406:3a0:206:0::6",
-      "kavlan-21": "2001:660:4406:6a0:206:0::6",
-      "kavlan-3": "2001:660:4406:282:6:0::6",
-      "kavlan-4": "2001:660:4406:290:6:0::6",
-      "kavlan-5": "2001:660:4406:291:6:0::6",
-      "kavlan-6": "2001:660:4406:292:6:0::6",
-      "kavlan-7": "2001:660:4406:293:6:0::6",
-      "kavlan-8": "2001:660:4406:294:6:0::6",
-      "kavlan-9": "2001:660:4406:295:6:0::6"
+      "kavlan-1": "2001:660:4406:280:6::6",
+      "kavlan-11": "2001:660:4406:1a0:206::6",
+      "kavlan-12": "2001:660:4406:2a0:206::6",
+      "kavlan-13": "2001:660:4406:4a0:206::6",
+      "kavlan-14": "2001:660:4406:5a0:206::6",
+      "kavlan-16": "2001:660:4406:7a0:206::6",
+      "kavlan-18": "2001:660:4406:8a0:206::6",
+      "kavlan-2": "2001:660:4406:281:6::6",
+      "kavlan-20": "2001:660:4406:3a0:206::6",
+      "kavlan-21": "2001:660:4406:6a0:206::6",
+      "kavlan-3": "2001:660:4406:282:6::6",
+      "kavlan-4": "2001:660:4406:290:6::6",
+      "kavlan-5": "2001:660:4406:291:6::6",
+      "kavlan-6": "2001:660:4406:292:6::6",
+      "kavlan-7": "2001:660:4406:293:6::6",
+      "kavlan-8": "2001:660:4406:294:6::6",
+      "kavlan-9": "2001:660:4406:295:6::6"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:6:1::6",
-      "kavlan-11": "2001:660:4406:1a0:206:1::6",
-      "kavlan-12": "2001:660:4406:2a0:206:1::6",
-      "kavlan-13": "2001:660:4406:4a0:206:1::6",
-      "kavlan-14": "2001:660:4406:5a0:206:1::6",
-      "kavlan-16": "2001:660:4406:7a0:206:1::6",
-      "kavlan-18": "2001:660:4406:8a0:206:1::6",
-      "kavlan-2": "2001:660:4406:281:6:1::6",
-      "kavlan-20": "2001:660:4406:3a0:206:1::6",
-      "kavlan-21": "2001:660:4406:6a0:206:1::6",
-      "kavlan-3": "2001:660:4406:282:6:1::6",
-      "kavlan-4": "2001:660:4406:290:6:1::6",
-      "kavlan-5": "2001:660:4406:291:6:1::6",
-      "kavlan-6": "2001:660:4406:292:6:1::6",
-      "kavlan-7": "2001:660:4406:293:6:1::6",
-      "kavlan-8": "2001:660:4406:294:6:1::6",
-      "kavlan-9": "2001:660:4406:295:6:1::6"
+      "kavlan-1": "2001:660:4406:280:6:1:0:6",
+      "kavlan-11": "2001:660:4406:1a0:206:1:0:6",
+      "kavlan-12": "2001:660:4406:2a0:206:1:0:6",
+      "kavlan-13": "2001:660:4406:4a0:206:1:0:6",
+      "kavlan-14": "2001:660:4406:5a0:206:1:0:6",
+      "kavlan-16": "2001:660:4406:7a0:206:1:0:6",
+      "kavlan-18": "2001:660:4406:8a0:206:1:0:6",
+      "kavlan-2": "2001:660:4406:281:6:1:0:6",
+      "kavlan-20": "2001:660:4406:3a0:206:1:0:6",
+      "kavlan-21": "2001:660:4406:6a0:206:1:0:6",
+      "kavlan-3": "2001:660:4406:282:6:1:0:6",
+      "kavlan-4": "2001:660:4406:290:6:1:0:6",
+      "kavlan-5": "2001:660:4406:291:6:1:0:6",
+      "kavlan-6": "2001:660:4406:292:6:1:0:6",
+      "kavlan-7": "2001:660:4406:293:6:1:0:6",
+      "kavlan-8": "2001:660:4406:294:6:1:0:6",
+      "kavlan-9": "2001:660:4406:295:6:1:0:6"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.6",
-      "ip6": "2001:660:4406:200:6:0::6",
+      "ip6": "2001:660:4406:200:6::6",
       "kavlan": true,
       "mac": "24:6e:96:2c:a6:10",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.106",
-      "ip6": "2001:660:4406:200:6:1::6",
+      "ip6": "2001:660:4406:200:6:1:0:6",
       "kavlan": true,
       "mac": "24:6e:96:2c:a6:12",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-7.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-7.json
index ade78f5f9984f39e581221736da4598e1fb5addb..6e7a6d05357c34ab9e28289923505505d4c14fc5 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-7.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-7.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6:0::7",
-      "kavlan-11": "2001:660:4406:1a0:206:0::7",
-      "kavlan-12": "2001:660:4406:2a0:206:0::7",
-      "kavlan-13": "2001:660:4406:4a0:206:0::7",
-      "kavlan-14": "2001:660:4406:5a0:206:0::7",
-      "kavlan-16": "2001:660:4406:7a0:206:0::7",
-      "kavlan-18": "2001:660:4406:8a0:206:0::7",
-      "kavlan-2": "2001:660:4406:281:6:0::7",
-      "kavlan-20": "2001:660:4406:3a0:206:0::7",
-      "kavlan-21": "2001:660:4406:6a0:206:0::7",
-      "kavlan-3": "2001:660:4406:282:6:0::7",
-      "kavlan-4": "2001:660:4406:290:6:0::7",
-      "kavlan-5": "2001:660:4406:291:6:0::7",
-      "kavlan-6": "2001:660:4406:292:6:0::7",
-      "kavlan-7": "2001:660:4406:293:6:0::7",
-      "kavlan-8": "2001:660:4406:294:6:0::7",
-      "kavlan-9": "2001:660:4406:295:6:0::7"
+      "kavlan-1": "2001:660:4406:280:6::7",
+      "kavlan-11": "2001:660:4406:1a0:206::7",
+      "kavlan-12": "2001:660:4406:2a0:206::7",
+      "kavlan-13": "2001:660:4406:4a0:206::7",
+      "kavlan-14": "2001:660:4406:5a0:206::7",
+      "kavlan-16": "2001:660:4406:7a0:206::7",
+      "kavlan-18": "2001:660:4406:8a0:206::7",
+      "kavlan-2": "2001:660:4406:281:6::7",
+      "kavlan-20": "2001:660:4406:3a0:206::7",
+      "kavlan-21": "2001:660:4406:6a0:206::7",
+      "kavlan-3": "2001:660:4406:282:6::7",
+      "kavlan-4": "2001:660:4406:290:6::7",
+      "kavlan-5": "2001:660:4406:291:6::7",
+      "kavlan-6": "2001:660:4406:292:6::7",
+      "kavlan-7": "2001:660:4406:293:6::7",
+      "kavlan-8": "2001:660:4406:294:6::7",
+      "kavlan-9": "2001:660:4406:295:6::7"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:6:1::7",
-      "kavlan-11": "2001:660:4406:1a0:206:1::7",
-      "kavlan-12": "2001:660:4406:2a0:206:1::7",
-      "kavlan-13": "2001:660:4406:4a0:206:1::7",
-      "kavlan-14": "2001:660:4406:5a0:206:1::7",
-      "kavlan-16": "2001:660:4406:7a0:206:1::7",
-      "kavlan-18": "2001:660:4406:8a0:206:1::7",
-      "kavlan-2": "2001:660:4406:281:6:1::7",
-      "kavlan-20": "2001:660:4406:3a0:206:1::7",
-      "kavlan-21": "2001:660:4406:6a0:206:1::7",
-      "kavlan-3": "2001:660:4406:282:6:1::7",
-      "kavlan-4": "2001:660:4406:290:6:1::7",
-      "kavlan-5": "2001:660:4406:291:6:1::7",
-      "kavlan-6": "2001:660:4406:292:6:1::7",
-      "kavlan-7": "2001:660:4406:293:6:1::7",
-      "kavlan-8": "2001:660:4406:294:6:1::7",
-      "kavlan-9": "2001:660:4406:295:6:1::7"
+      "kavlan-1": "2001:660:4406:280:6:1:0:7",
+      "kavlan-11": "2001:660:4406:1a0:206:1:0:7",
+      "kavlan-12": "2001:660:4406:2a0:206:1:0:7",
+      "kavlan-13": "2001:660:4406:4a0:206:1:0:7",
+      "kavlan-14": "2001:660:4406:5a0:206:1:0:7",
+      "kavlan-16": "2001:660:4406:7a0:206:1:0:7",
+      "kavlan-18": "2001:660:4406:8a0:206:1:0:7",
+      "kavlan-2": "2001:660:4406:281:6:1:0:7",
+      "kavlan-20": "2001:660:4406:3a0:206:1:0:7",
+      "kavlan-21": "2001:660:4406:6a0:206:1:0:7",
+      "kavlan-3": "2001:660:4406:282:6:1:0:7",
+      "kavlan-4": "2001:660:4406:290:6:1:0:7",
+      "kavlan-5": "2001:660:4406:291:6:1:0:7",
+      "kavlan-6": "2001:660:4406:292:6:1:0:7",
+      "kavlan-7": "2001:660:4406:293:6:1:0:7",
+      "kavlan-8": "2001:660:4406:294:6:1:0:7",
+      "kavlan-9": "2001:660:4406:295:6:1:0:7"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.7",
-      "ip6": "2001:660:4406:200:6:0::7",
+      "ip6": "2001:660:4406:200:6::7",
       "kavlan": true,
       "mac": "24:6e:96:2c:7b:50",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.107",
-      "ip6": "2001:660:4406:200:6:1::7",
+      "ip6": "2001:660:4406:200:6:1:0:7",
       "kavlan": true,
       "mac": "24:6e:96:2c:7b:52",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-8.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-8.json
index b9806fa60b798cc2bde39205174f988a75ed8434..cb06a5b5158a56acc0dbd70933b02bbda1920fa8 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-8.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-8.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6:0::8",
-      "kavlan-11": "2001:660:4406:1a0:206:0::8",
-      "kavlan-12": "2001:660:4406:2a0:206:0::8",
-      "kavlan-13": "2001:660:4406:4a0:206:0::8",
-      "kavlan-14": "2001:660:4406:5a0:206:0::8",
-      "kavlan-16": "2001:660:4406:7a0:206:0::8",
-      "kavlan-18": "2001:660:4406:8a0:206:0::8",
-      "kavlan-2": "2001:660:4406:281:6:0::8",
-      "kavlan-20": "2001:660:4406:3a0:206:0::8",
-      "kavlan-21": "2001:660:4406:6a0:206:0::8",
-      "kavlan-3": "2001:660:4406:282:6:0::8",
-      "kavlan-4": "2001:660:4406:290:6:0::8",
-      "kavlan-5": "2001:660:4406:291:6:0::8",
-      "kavlan-6": "2001:660:4406:292:6:0::8",
-      "kavlan-7": "2001:660:4406:293:6:0::8",
-      "kavlan-8": "2001:660:4406:294:6:0::8",
-      "kavlan-9": "2001:660:4406:295:6:0::8"
+      "kavlan-1": "2001:660:4406:280:6::8",
+      "kavlan-11": "2001:660:4406:1a0:206::8",
+      "kavlan-12": "2001:660:4406:2a0:206::8",
+      "kavlan-13": "2001:660:4406:4a0:206::8",
+      "kavlan-14": "2001:660:4406:5a0:206::8",
+      "kavlan-16": "2001:660:4406:7a0:206::8",
+      "kavlan-18": "2001:660:4406:8a0:206::8",
+      "kavlan-2": "2001:660:4406:281:6::8",
+      "kavlan-20": "2001:660:4406:3a0:206::8",
+      "kavlan-21": "2001:660:4406:6a0:206::8",
+      "kavlan-3": "2001:660:4406:282:6::8",
+      "kavlan-4": "2001:660:4406:290:6::8",
+      "kavlan-5": "2001:660:4406:291:6::8",
+      "kavlan-6": "2001:660:4406:292:6::8",
+      "kavlan-7": "2001:660:4406:293:6::8",
+      "kavlan-8": "2001:660:4406:294:6::8",
+      "kavlan-9": "2001:660:4406:295:6::8"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:6:1::8",
-      "kavlan-11": "2001:660:4406:1a0:206:1::8",
-      "kavlan-12": "2001:660:4406:2a0:206:1::8",
-      "kavlan-13": "2001:660:4406:4a0:206:1::8",
-      "kavlan-14": "2001:660:4406:5a0:206:1::8",
-      "kavlan-16": "2001:660:4406:7a0:206:1::8",
-      "kavlan-18": "2001:660:4406:8a0:206:1::8",
-      "kavlan-2": "2001:660:4406:281:6:1::8",
-      "kavlan-20": "2001:660:4406:3a0:206:1::8",
-      "kavlan-21": "2001:660:4406:6a0:206:1::8",
-      "kavlan-3": "2001:660:4406:282:6:1::8",
-      "kavlan-4": "2001:660:4406:290:6:1::8",
-      "kavlan-5": "2001:660:4406:291:6:1::8",
-      "kavlan-6": "2001:660:4406:292:6:1::8",
-      "kavlan-7": "2001:660:4406:293:6:1::8",
-      "kavlan-8": "2001:660:4406:294:6:1::8",
-      "kavlan-9": "2001:660:4406:295:6:1::8"
+      "kavlan-1": "2001:660:4406:280:6:1:0:8",
+      "kavlan-11": "2001:660:4406:1a0:206:1:0:8",
+      "kavlan-12": "2001:660:4406:2a0:206:1:0:8",
+      "kavlan-13": "2001:660:4406:4a0:206:1:0:8",
+      "kavlan-14": "2001:660:4406:5a0:206:1:0:8",
+      "kavlan-16": "2001:660:4406:7a0:206:1:0:8",
+      "kavlan-18": "2001:660:4406:8a0:206:1:0:8",
+      "kavlan-2": "2001:660:4406:281:6:1:0:8",
+      "kavlan-20": "2001:660:4406:3a0:206:1:0:8",
+      "kavlan-21": "2001:660:4406:6a0:206:1:0:8",
+      "kavlan-3": "2001:660:4406:282:6:1:0:8",
+      "kavlan-4": "2001:660:4406:290:6:1:0:8",
+      "kavlan-5": "2001:660:4406:291:6:1:0:8",
+      "kavlan-6": "2001:660:4406:292:6:1:0:8",
+      "kavlan-7": "2001:660:4406:293:6:1:0:8",
+      "kavlan-8": "2001:660:4406:294:6:1:0:8",
+      "kavlan-9": "2001:660:4406:295:6:1:0:8"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.8",
-      "ip6": "2001:660:4406:200:6:0::8",
+      "ip6": "2001:660:4406:200:6::8",
       "kavlan": true,
       "mac": "24:6e:96:2c:98:28",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.108",
-      "ip6": "2001:660:4406:200:6:1::8",
+      "ip6": "2001:660:4406:200:6:1:0:8",
       "kavlan": true,
       "mac": "24:6e:96:2c:98:2a",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-9.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-9.json
index 459fb7e02ae37f0a8b23ba3af995fb2b92f3850d..697b6188133673b533b268e588c3f3b218066486 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-9.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-9.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6:0::9",
-      "kavlan-11": "2001:660:4406:1a0:206:0::9",
-      "kavlan-12": "2001:660:4406:2a0:206:0::9",
-      "kavlan-13": "2001:660:4406:4a0:206:0::9",
-      "kavlan-14": "2001:660:4406:5a0:206:0::9",
-      "kavlan-16": "2001:660:4406:7a0:206:0::9",
-      "kavlan-18": "2001:660:4406:8a0:206:0::9",
-      "kavlan-2": "2001:660:4406:281:6:0::9",
-      "kavlan-20": "2001:660:4406:3a0:206:0::9",
-      "kavlan-21": "2001:660:4406:6a0:206:0::9",
-      "kavlan-3": "2001:660:4406:282:6:0::9",
-      "kavlan-4": "2001:660:4406:290:6:0::9",
-      "kavlan-5": "2001:660:4406:291:6:0::9",
-      "kavlan-6": "2001:660:4406:292:6:0::9",
-      "kavlan-7": "2001:660:4406:293:6:0::9",
-      "kavlan-8": "2001:660:4406:294:6:0::9",
-      "kavlan-9": "2001:660:4406:295:6:0::9"
+      "kavlan-1": "2001:660:4406:280:6::9",
+      "kavlan-11": "2001:660:4406:1a0:206::9",
+      "kavlan-12": "2001:660:4406:2a0:206::9",
+      "kavlan-13": "2001:660:4406:4a0:206::9",
+      "kavlan-14": "2001:660:4406:5a0:206::9",
+      "kavlan-16": "2001:660:4406:7a0:206::9",
+      "kavlan-18": "2001:660:4406:8a0:206::9",
+      "kavlan-2": "2001:660:4406:281:6::9",
+      "kavlan-20": "2001:660:4406:3a0:206::9",
+      "kavlan-21": "2001:660:4406:6a0:206::9",
+      "kavlan-3": "2001:660:4406:282:6::9",
+      "kavlan-4": "2001:660:4406:290:6::9",
+      "kavlan-5": "2001:660:4406:291:6::9",
+      "kavlan-6": "2001:660:4406:292:6::9",
+      "kavlan-7": "2001:660:4406:293:6::9",
+      "kavlan-8": "2001:660:4406:294:6::9",
+      "kavlan-9": "2001:660:4406:295:6::9"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:6:1::9",
-      "kavlan-11": "2001:660:4406:1a0:206:1::9",
-      "kavlan-12": "2001:660:4406:2a0:206:1::9",
-      "kavlan-13": "2001:660:4406:4a0:206:1::9",
-      "kavlan-14": "2001:660:4406:5a0:206:1::9",
-      "kavlan-16": "2001:660:4406:7a0:206:1::9",
-      "kavlan-18": "2001:660:4406:8a0:206:1::9",
-      "kavlan-2": "2001:660:4406:281:6:1::9",
-      "kavlan-20": "2001:660:4406:3a0:206:1::9",
-      "kavlan-21": "2001:660:4406:6a0:206:1::9",
-      "kavlan-3": "2001:660:4406:282:6:1::9",
-      "kavlan-4": "2001:660:4406:290:6:1::9",
-      "kavlan-5": "2001:660:4406:291:6:1::9",
-      "kavlan-6": "2001:660:4406:292:6:1::9",
-      "kavlan-7": "2001:660:4406:293:6:1::9",
-      "kavlan-8": "2001:660:4406:294:6:1::9",
-      "kavlan-9": "2001:660:4406:295:6:1::9"
+      "kavlan-1": "2001:660:4406:280:6:1:0:9",
+      "kavlan-11": "2001:660:4406:1a0:206:1:0:9",
+      "kavlan-12": "2001:660:4406:2a0:206:1:0:9",
+      "kavlan-13": "2001:660:4406:4a0:206:1:0:9",
+      "kavlan-14": "2001:660:4406:5a0:206:1:0:9",
+      "kavlan-16": "2001:660:4406:7a0:206:1:0:9",
+      "kavlan-18": "2001:660:4406:8a0:206:1:0:9",
+      "kavlan-2": "2001:660:4406:281:6:1:0:9",
+      "kavlan-20": "2001:660:4406:3a0:206:1:0:9",
+      "kavlan-21": "2001:660:4406:6a0:206:1:0:9",
+      "kavlan-3": "2001:660:4406:282:6:1:0:9",
+      "kavlan-4": "2001:660:4406:290:6:1:0:9",
+      "kavlan-5": "2001:660:4406:291:6:1:0:9",
+      "kavlan-6": "2001:660:4406:292:6:1:0:9",
+      "kavlan-7": "2001:660:4406:293:6:1:0:9",
+      "kavlan-8": "2001:660:4406:294:6:1:0:9",
+      "kavlan-9": "2001:660:4406:295:6:1:0:9"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.9",
-      "ip6": "2001:660:4406:200:6:0::9",
+      "ip6": "2001:660:4406:200:6::9",
       "kavlan": true,
       "mac": "24:6e:96:2c:a8:80",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.109",
-      "ip6": "2001:660:4406:200:6:1::9",
+      "ip6": "2001:660:4406:200:6:1:0:9",
       "kavlan": true,
       "mac": "24:6e:96:2c:a8:82",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-1.json b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-1.json
index e710d0e9c3a6ae285119306027a20bc338da9418..6274c3b1ca9dce34374b708427b1873b3b9bcca4 100644
--- a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-1.json
+++ b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-1.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:8:0::1",
-      "kavlan-11": "2001:660:4406:1a0:208:0::1",
-      "kavlan-12": "2001:660:4406:2a0:208:0::1",
-      "kavlan-13": "2001:660:4406:4a0:208:0::1",
-      "kavlan-14": "2001:660:4406:5a0:208:0::1",
-      "kavlan-16": "2001:660:4406:7a0:208:0::1",
-      "kavlan-18": "2001:660:4406:8a0:208:0::1",
-      "kavlan-2": "2001:660:4406:281:8:0::1",
-      "kavlan-20": "2001:660:4406:3a0:208:0::1",
-      "kavlan-21": "2001:660:4406:6a0:208:0::1",
-      "kavlan-3": "2001:660:4406:282:8:0::1",
-      "kavlan-4": "2001:660:4406:290:8:0::1",
-      "kavlan-5": "2001:660:4406:291:8:0::1",
-      "kavlan-6": "2001:660:4406:292:8:0::1",
-      "kavlan-7": "2001:660:4406:293:8:0::1",
-      "kavlan-8": "2001:660:4406:294:8:0::1",
-      "kavlan-9": "2001:660:4406:295:8:0::1"
+      "kavlan-1": "2001:660:4406:280:8::1",
+      "kavlan-11": "2001:660:4406:1a0:208::1",
+      "kavlan-12": "2001:660:4406:2a0:208::1",
+      "kavlan-13": "2001:660:4406:4a0:208::1",
+      "kavlan-14": "2001:660:4406:5a0:208::1",
+      "kavlan-16": "2001:660:4406:7a0:208::1",
+      "kavlan-18": "2001:660:4406:8a0:208::1",
+      "kavlan-2": "2001:660:4406:281:8::1",
+      "kavlan-20": "2001:660:4406:3a0:208::1",
+      "kavlan-21": "2001:660:4406:6a0:208::1",
+      "kavlan-3": "2001:660:4406:282:8::1",
+      "kavlan-4": "2001:660:4406:290:8::1",
+      "kavlan-5": "2001:660:4406:291:8::1",
+      "kavlan-6": "2001:660:4406:292:8::1",
+      "kavlan-7": "2001:660:4406:293:8::1",
+      "kavlan-8": "2001:660:4406:294:8::1",
+      "kavlan-9": "2001:660:4406:295:8::1"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:8:1::1",
-      "kavlan-11": "2001:660:4406:1a0:208:1::1",
-      "kavlan-12": "2001:660:4406:2a0:208:1::1",
-      "kavlan-13": "2001:660:4406:4a0:208:1::1",
-      "kavlan-14": "2001:660:4406:5a0:208:1::1",
-      "kavlan-16": "2001:660:4406:7a0:208:1::1",
-      "kavlan-18": "2001:660:4406:8a0:208:1::1",
-      "kavlan-2": "2001:660:4406:281:8:1::1",
-      "kavlan-20": "2001:660:4406:3a0:208:1::1",
-      "kavlan-21": "2001:660:4406:6a0:208:1::1",
-      "kavlan-3": "2001:660:4406:282:8:1::1",
-      "kavlan-4": "2001:660:4406:290:8:1::1",
-      "kavlan-5": "2001:660:4406:291:8:1::1",
-      "kavlan-6": "2001:660:4406:292:8:1::1",
-      "kavlan-7": "2001:660:4406:293:8:1::1",
-      "kavlan-8": "2001:660:4406:294:8:1::1",
-      "kavlan-9": "2001:660:4406:295:8:1::1"
+      "kavlan-1": "2001:660:4406:280:8:1:0:1",
+      "kavlan-11": "2001:660:4406:1a0:208:1:0:1",
+      "kavlan-12": "2001:660:4406:2a0:208:1:0:1",
+      "kavlan-13": "2001:660:4406:4a0:208:1:0:1",
+      "kavlan-14": "2001:660:4406:5a0:208:1:0:1",
+      "kavlan-16": "2001:660:4406:7a0:208:1:0:1",
+      "kavlan-18": "2001:660:4406:8a0:208:1:0:1",
+      "kavlan-2": "2001:660:4406:281:8:1:0:1",
+      "kavlan-20": "2001:660:4406:3a0:208:1:0:1",
+      "kavlan-21": "2001:660:4406:6a0:208:1:0:1",
+      "kavlan-3": "2001:660:4406:282:8:1:0:1",
+      "kavlan-4": "2001:660:4406:290:8:1:0:1",
+      "kavlan-5": "2001:660:4406:291:8:1:0:1",
+      "kavlan-6": "2001:660:4406:292:8:1:0:1",
+      "kavlan-7": "2001:660:4406:293:8:1:0:1",
+      "kavlan-8": "2001:660:4406:294:8:1:0:1",
+      "kavlan-9": "2001:660:4406:295:8:1:0:1"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.1",
-      "ip6": "2001:660:4406:200:8:0::1",
+      "ip6": "2001:660:4406:200:8::1",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:63:40",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.101",
-      "ip6": "2001:660:4406:200:8:1::1",
+      "ip6": "2001:660:4406:200:8:1:0:1",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:63:41",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-2.json b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-2.json
index f2a8efd433cc849b7b1a9d4e1442620eb212e08e..609bafd9f4bf94dc130ed8f7de098428248fc327 100644
--- a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-2.json
+++ b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-2.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:8:0::2",
-      "kavlan-11": "2001:660:4406:1a0:208:0::2",
-      "kavlan-12": "2001:660:4406:2a0:208:0::2",
-      "kavlan-13": "2001:660:4406:4a0:208:0::2",
-      "kavlan-14": "2001:660:4406:5a0:208:0::2",
-      "kavlan-16": "2001:660:4406:7a0:208:0::2",
-      "kavlan-18": "2001:660:4406:8a0:208:0::2",
-      "kavlan-2": "2001:660:4406:281:8:0::2",
-      "kavlan-20": "2001:660:4406:3a0:208:0::2",
-      "kavlan-21": "2001:660:4406:6a0:208:0::2",
-      "kavlan-3": "2001:660:4406:282:8:0::2",
-      "kavlan-4": "2001:660:4406:290:8:0::2",
-      "kavlan-5": "2001:660:4406:291:8:0::2",
-      "kavlan-6": "2001:660:4406:292:8:0::2",
-      "kavlan-7": "2001:660:4406:293:8:0::2",
-      "kavlan-8": "2001:660:4406:294:8:0::2",
-      "kavlan-9": "2001:660:4406:295:8:0::2"
+      "kavlan-1": "2001:660:4406:280:8::2",
+      "kavlan-11": "2001:660:4406:1a0:208::2",
+      "kavlan-12": "2001:660:4406:2a0:208::2",
+      "kavlan-13": "2001:660:4406:4a0:208::2",
+      "kavlan-14": "2001:660:4406:5a0:208::2",
+      "kavlan-16": "2001:660:4406:7a0:208::2",
+      "kavlan-18": "2001:660:4406:8a0:208::2",
+      "kavlan-2": "2001:660:4406:281:8::2",
+      "kavlan-20": "2001:660:4406:3a0:208::2",
+      "kavlan-21": "2001:660:4406:6a0:208::2",
+      "kavlan-3": "2001:660:4406:282:8::2",
+      "kavlan-4": "2001:660:4406:290:8::2",
+      "kavlan-5": "2001:660:4406:291:8::2",
+      "kavlan-6": "2001:660:4406:292:8::2",
+      "kavlan-7": "2001:660:4406:293:8::2",
+      "kavlan-8": "2001:660:4406:294:8::2",
+      "kavlan-9": "2001:660:4406:295:8::2"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:8:1::2",
-      "kavlan-11": "2001:660:4406:1a0:208:1::2",
-      "kavlan-12": "2001:660:4406:2a0:208:1::2",
-      "kavlan-13": "2001:660:4406:4a0:208:1::2",
-      "kavlan-14": "2001:660:4406:5a0:208:1::2",
-      "kavlan-16": "2001:660:4406:7a0:208:1::2",
-      "kavlan-18": "2001:660:4406:8a0:208:1::2",
-      "kavlan-2": "2001:660:4406:281:8:1::2",
-      "kavlan-20": "2001:660:4406:3a0:208:1::2",
-      "kavlan-21": "2001:660:4406:6a0:208:1::2",
-      "kavlan-3": "2001:660:4406:282:8:1::2",
-      "kavlan-4": "2001:660:4406:290:8:1::2",
-      "kavlan-5": "2001:660:4406:291:8:1::2",
-      "kavlan-6": "2001:660:4406:292:8:1::2",
-      "kavlan-7": "2001:660:4406:293:8:1::2",
-      "kavlan-8": "2001:660:4406:294:8:1::2",
-      "kavlan-9": "2001:660:4406:295:8:1::2"
+      "kavlan-1": "2001:660:4406:280:8:1:0:2",
+      "kavlan-11": "2001:660:4406:1a0:208:1:0:2",
+      "kavlan-12": "2001:660:4406:2a0:208:1:0:2",
+      "kavlan-13": "2001:660:4406:4a0:208:1:0:2",
+      "kavlan-14": "2001:660:4406:5a0:208:1:0:2",
+      "kavlan-16": "2001:660:4406:7a0:208:1:0:2",
+      "kavlan-18": "2001:660:4406:8a0:208:1:0:2",
+      "kavlan-2": "2001:660:4406:281:8:1:0:2",
+      "kavlan-20": "2001:660:4406:3a0:208:1:0:2",
+      "kavlan-21": "2001:660:4406:6a0:208:1:0:2",
+      "kavlan-3": "2001:660:4406:282:8:1:0:2",
+      "kavlan-4": "2001:660:4406:290:8:1:0:2",
+      "kavlan-5": "2001:660:4406:291:8:1:0:2",
+      "kavlan-6": "2001:660:4406:292:8:1:0:2",
+      "kavlan-7": "2001:660:4406:293:8:1:0:2",
+      "kavlan-8": "2001:660:4406:294:8:1:0:2",
+      "kavlan-9": "2001:660:4406:295:8:1:0:2"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.2",
-      "ip6": "2001:660:4406:200:8:0::2",
+      "ip6": "2001:660:4406:200:8::2",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:72:c0",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.102",
-      "ip6": "2001:660:4406:200:8:1::2",
+      "ip6": "2001:660:4406:200:8:1:0:2",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:72:c1",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-3.json b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-3.json
index 3a19e4875b252d7580febe48a9523fde8a926403..ba6b27fff116826e131bc965bb396cfb16e83bd0 100644
--- a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-3.json
+++ b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-3.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:8:0::3",
-      "kavlan-11": "2001:660:4406:1a0:208:0::3",
-      "kavlan-12": "2001:660:4406:2a0:208:0::3",
-      "kavlan-13": "2001:660:4406:4a0:208:0::3",
-      "kavlan-14": "2001:660:4406:5a0:208:0::3",
-      "kavlan-16": "2001:660:4406:7a0:208:0::3",
-      "kavlan-18": "2001:660:4406:8a0:208:0::3",
-      "kavlan-2": "2001:660:4406:281:8:0::3",
-      "kavlan-20": "2001:660:4406:3a0:208:0::3",
-      "kavlan-21": "2001:660:4406:6a0:208:0::3",
-      "kavlan-3": "2001:660:4406:282:8:0::3",
-      "kavlan-4": "2001:660:4406:290:8:0::3",
-      "kavlan-5": "2001:660:4406:291:8:0::3",
-      "kavlan-6": "2001:660:4406:292:8:0::3",
-      "kavlan-7": "2001:660:4406:293:8:0::3",
-      "kavlan-8": "2001:660:4406:294:8:0::3",
-      "kavlan-9": "2001:660:4406:295:8:0::3"
+      "kavlan-1": "2001:660:4406:280:8::3",
+      "kavlan-11": "2001:660:4406:1a0:208::3",
+      "kavlan-12": "2001:660:4406:2a0:208::3",
+      "kavlan-13": "2001:660:4406:4a0:208::3",
+      "kavlan-14": "2001:660:4406:5a0:208::3",
+      "kavlan-16": "2001:660:4406:7a0:208::3",
+      "kavlan-18": "2001:660:4406:8a0:208::3",
+      "kavlan-2": "2001:660:4406:281:8::3",
+      "kavlan-20": "2001:660:4406:3a0:208::3",
+      "kavlan-21": "2001:660:4406:6a0:208::3",
+      "kavlan-3": "2001:660:4406:282:8::3",
+      "kavlan-4": "2001:660:4406:290:8::3",
+      "kavlan-5": "2001:660:4406:291:8::3",
+      "kavlan-6": "2001:660:4406:292:8::3",
+      "kavlan-7": "2001:660:4406:293:8::3",
+      "kavlan-8": "2001:660:4406:294:8::3",
+      "kavlan-9": "2001:660:4406:295:8::3"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:8:1::3",
-      "kavlan-11": "2001:660:4406:1a0:208:1::3",
-      "kavlan-12": "2001:660:4406:2a0:208:1::3",
-      "kavlan-13": "2001:660:4406:4a0:208:1::3",
-      "kavlan-14": "2001:660:4406:5a0:208:1::3",
-      "kavlan-16": "2001:660:4406:7a0:208:1::3",
-      "kavlan-18": "2001:660:4406:8a0:208:1::3",
-      "kavlan-2": "2001:660:4406:281:8:1::3",
-      "kavlan-20": "2001:660:4406:3a0:208:1::3",
-      "kavlan-21": "2001:660:4406:6a0:208:1::3",
-      "kavlan-3": "2001:660:4406:282:8:1::3",
-      "kavlan-4": "2001:660:4406:290:8:1::3",
-      "kavlan-5": "2001:660:4406:291:8:1::3",
-      "kavlan-6": "2001:660:4406:292:8:1::3",
-      "kavlan-7": "2001:660:4406:293:8:1::3",
-      "kavlan-8": "2001:660:4406:294:8:1::3",
-      "kavlan-9": "2001:660:4406:295:8:1::3"
+      "kavlan-1": "2001:660:4406:280:8:1:0:3",
+      "kavlan-11": "2001:660:4406:1a0:208:1:0:3",
+      "kavlan-12": "2001:660:4406:2a0:208:1:0:3",
+      "kavlan-13": "2001:660:4406:4a0:208:1:0:3",
+      "kavlan-14": "2001:660:4406:5a0:208:1:0:3",
+      "kavlan-16": "2001:660:4406:7a0:208:1:0:3",
+      "kavlan-18": "2001:660:4406:8a0:208:1:0:3",
+      "kavlan-2": "2001:660:4406:281:8:1:0:3",
+      "kavlan-20": "2001:660:4406:3a0:208:1:0:3",
+      "kavlan-21": "2001:660:4406:6a0:208:1:0:3",
+      "kavlan-3": "2001:660:4406:282:8:1:0:3",
+      "kavlan-4": "2001:660:4406:290:8:1:0:3",
+      "kavlan-5": "2001:660:4406:291:8:1:0:3",
+      "kavlan-6": "2001:660:4406:292:8:1:0:3",
+      "kavlan-7": "2001:660:4406:293:8:1:0:3",
+      "kavlan-8": "2001:660:4406:294:8:1:0:3",
+      "kavlan-9": "2001:660:4406:295:8:1:0:3"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.3",
-      "ip6": "2001:660:4406:200:8:0::3",
+      "ip6": "2001:660:4406:200:8::3",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:75:d0",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.103",
-      "ip6": "2001:660:4406:200:8:1::3",
+      "ip6": "2001:660:4406:200:8:1:0:3",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:75:d1",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-4.json b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-4.json
index ff474c3cfb47c945b81bb2ce6fef0a838532eace..8b155fd0ad260d5e06dec52463fd8db6610f6deb 100644
--- a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-4.json
+++ b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-4.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:8:0::4",
-      "kavlan-11": "2001:660:4406:1a0:208:0::4",
-      "kavlan-12": "2001:660:4406:2a0:208:0::4",
-      "kavlan-13": "2001:660:4406:4a0:208:0::4",
-      "kavlan-14": "2001:660:4406:5a0:208:0::4",
-      "kavlan-16": "2001:660:4406:7a0:208:0::4",
-      "kavlan-18": "2001:660:4406:8a0:208:0::4",
-      "kavlan-2": "2001:660:4406:281:8:0::4",
-      "kavlan-20": "2001:660:4406:3a0:208:0::4",
-      "kavlan-21": "2001:660:4406:6a0:208:0::4",
-      "kavlan-3": "2001:660:4406:282:8:0::4",
-      "kavlan-4": "2001:660:4406:290:8:0::4",
-      "kavlan-5": "2001:660:4406:291:8:0::4",
-      "kavlan-6": "2001:660:4406:292:8:0::4",
-      "kavlan-7": "2001:660:4406:293:8:0::4",
-      "kavlan-8": "2001:660:4406:294:8:0::4",
-      "kavlan-9": "2001:660:4406:295:8:0::4"
+      "kavlan-1": "2001:660:4406:280:8::4",
+      "kavlan-11": "2001:660:4406:1a0:208::4",
+      "kavlan-12": "2001:660:4406:2a0:208::4",
+      "kavlan-13": "2001:660:4406:4a0:208::4",
+      "kavlan-14": "2001:660:4406:5a0:208::4",
+      "kavlan-16": "2001:660:4406:7a0:208::4",
+      "kavlan-18": "2001:660:4406:8a0:208::4",
+      "kavlan-2": "2001:660:4406:281:8::4",
+      "kavlan-20": "2001:660:4406:3a0:208::4",
+      "kavlan-21": "2001:660:4406:6a0:208::4",
+      "kavlan-3": "2001:660:4406:282:8::4",
+      "kavlan-4": "2001:660:4406:290:8::4",
+      "kavlan-5": "2001:660:4406:291:8::4",
+      "kavlan-6": "2001:660:4406:292:8::4",
+      "kavlan-7": "2001:660:4406:293:8::4",
+      "kavlan-8": "2001:660:4406:294:8::4",
+      "kavlan-9": "2001:660:4406:295:8::4"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:8:1::4",
-      "kavlan-11": "2001:660:4406:1a0:208:1::4",
-      "kavlan-12": "2001:660:4406:2a0:208:1::4",
-      "kavlan-13": "2001:660:4406:4a0:208:1::4",
-      "kavlan-14": "2001:660:4406:5a0:208:1::4",
-      "kavlan-16": "2001:660:4406:7a0:208:1::4",
-      "kavlan-18": "2001:660:4406:8a0:208:1::4",
-      "kavlan-2": "2001:660:4406:281:8:1::4",
-      "kavlan-20": "2001:660:4406:3a0:208:1::4",
-      "kavlan-21": "2001:660:4406:6a0:208:1::4",
-      "kavlan-3": "2001:660:4406:282:8:1::4",
-      "kavlan-4": "2001:660:4406:290:8:1::4",
-      "kavlan-5": "2001:660:4406:291:8:1::4",
-      "kavlan-6": "2001:660:4406:292:8:1::4",
-      "kavlan-7": "2001:660:4406:293:8:1::4",
-      "kavlan-8": "2001:660:4406:294:8:1::4",
-      "kavlan-9": "2001:660:4406:295:8:1::4"
+      "kavlan-1": "2001:660:4406:280:8:1:0:4",
+      "kavlan-11": "2001:660:4406:1a0:208:1:0:4",
+      "kavlan-12": "2001:660:4406:2a0:208:1:0:4",
+      "kavlan-13": "2001:660:4406:4a0:208:1:0:4",
+      "kavlan-14": "2001:660:4406:5a0:208:1:0:4",
+      "kavlan-16": "2001:660:4406:7a0:208:1:0:4",
+      "kavlan-18": "2001:660:4406:8a0:208:1:0:4",
+      "kavlan-2": "2001:660:4406:281:8:1:0:4",
+      "kavlan-20": "2001:660:4406:3a0:208:1:0:4",
+      "kavlan-21": "2001:660:4406:6a0:208:1:0:4",
+      "kavlan-3": "2001:660:4406:282:8:1:0:4",
+      "kavlan-4": "2001:660:4406:290:8:1:0:4",
+      "kavlan-5": "2001:660:4406:291:8:1:0:4",
+      "kavlan-6": "2001:660:4406:292:8:1:0:4",
+      "kavlan-7": "2001:660:4406:293:8:1:0:4",
+      "kavlan-8": "2001:660:4406:294:8:1:0:4",
+      "kavlan-9": "2001:660:4406:295:8:1:0:4"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.4",
-      "ip6": "2001:660:4406:200:8:0::4",
+      "ip6": "2001:660:4406:200:8::4",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:63:30",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.104",
-      "ip6": "2001:660:4406:200:8:1::4",
+      "ip6": "2001:660:4406:200:8:1:0:4",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:63:31",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-5.json b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-5.json
index 9c4d7133f84ae175a6971c54528dbb09e985c373..f0a56bfa49a9a051915d3d874d823d299da15c99 100644
--- a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-5.json
+++ b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-5.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:8:0::5",
-      "kavlan-11": "2001:660:4406:1a0:208:0::5",
-      "kavlan-12": "2001:660:4406:2a0:208:0::5",
-      "kavlan-13": "2001:660:4406:4a0:208:0::5",
-      "kavlan-14": "2001:660:4406:5a0:208:0::5",
-      "kavlan-16": "2001:660:4406:7a0:208:0::5",
-      "kavlan-18": "2001:660:4406:8a0:208:0::5",
-      "kavlan-2": "2001:660:4406:281:8:0::5",
-      "kavlan-20": "2001:660:4406:3a0:208:0::5",
-      "kavlan-21": "2001:660:4406:6a0:208:0::5",
-      "kavlan-3": "2001:660:4406:282:8:0::5",
-      "kavlan-4": "2001:660:4406:290:8:0::5",
-      "kavlan-5": "2001:660:4406:291:8:0::5",
-      "kavlan-6": "2001:660:4406:292:8:0::5",
-      "kavlan-7": "2001:660:4406:293:8:0::5",
-      "kavlan-8": "2001:660:4406:294:8:0::5",
-      "kavlan-9": "2001:660:4406:295:8:0::5"
+      "kavlan-1": "2001:660:4406:280:8::5",
+      "kavlan-11": "2001:660:4406:1a0:208::5",
+      "kavlan-12": "2001:660:4406:2a0:208::5",
+      "kavlan-13": "2001:660:4406:4a0:208::5",
+      "kavlan-14": "2001:660:4406:5a0:208::5",
+      "kavlan-16": "2001:660:4406:7a0:208::5",
+      "kavlan-18": "2001:660:4406:8a0:208::5",
+      "kavlan-2": "2001:660:4406:281:8::5",
+      "kavlan-20": "2001:660:4406:3a0:208::5",
+      "kavlan-21": "2001:660:4406:6a0:208::5",
+      "kavlan-3": "2001:660:4406:282:8::5",
+      "kavlan-4": "2001:660:4406:290:8::5",
+      "kavlan-5": "2001:660:4406:291:8::5",
+      "kavlan-6": "2001:660:4406:292:8::5",
+      "kavlan-7": "2001:660:4406:293:8::5",
+      "kavlan-8": "2001:660:4406:294:8::5",
+      "kavlan-9": "2001:660:4406:295:8::5"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:8:1::5",
-      "kavlan-11": "2001:660:4406:1a0:208:1::5",
-      "kavlan-12": "2001:660:4406:2a0:208:1::5",
-      "kavlan-13": "2001:660:4406:4a0:208:1::5",
-      "kavlan-14": "2001:660:4406:5a0:208:1::5",
-      "kavlan-16": "2001:660:4406:7a0:208:1::5",
-      "kavlan-18": "2001:660:4406:8a0:208:1::5",
-      "kavlan-2": "2001:660:4406:281:8:1::5",
-      "kavlan-20": "2001:660:4406:3a0:208:1::5",
-      "kavlan-21": "2001:660:4406:6a0:208:1::5",
-      "kavlan-3": "2001:660:4406:282:8:1::5",
-      "kavlan-4": "2001:660:4406:290:8:1::5",
-      "kavlan-5": "2001:660:4406:291:8:1::5",
-      "kavlan-6": "2001:660:4406:292:8:1::5",
-      "kavlan-7": "2001:660:4406:293:8:1::5",
-      "kavlan-8": "2001:660:4406:294:8:1::5",
-      "kavlan-9": "2001:660:4406:295:8:1::5"
+      "kavlan-1": "2001:660:4406:280:8:1:0:5",
+      "kavlan-11": "2001:660:4406:1a0:208:1:0:5",
+      "kavlan-12": "2001:660:4406:2a0:208:1:0:5",
+      "kavlan-13": "2001:660:4406:4a0:208:1:0:5",
+      "kavlan-14": "2001:660:4406:5a0:208:1:0:5",
+      "kavlan-16": "2001:660:4406:7a0:208:1:0:5",
+      "kavlan-18": "2001:660:4406:8a0:208:1:0:5",
+      "kavlan-2": "2001:660:4406:281:8:1:0:5",
+      "kavlan-20": "2001:660:4406:3a0:208:1:0:5",
+      "kavlan-21": "2001:660:4406:6a0:208:1:0:5",
+      "kavlan-3": "2001:660:4406:282:8:1:0:5",
+      "kavlan-4": "2001:660:4406:290:8:1:0:5",
+      "kavlan-5": "2001:660:4406:291:8:1:0:5",
+      "kavlan-6": "2001:660:4406:292:8:1:0:5",
+      "kavlan-7": "2001:660:4406:293:8:1:0:5",
+      "kavlan-8": "2001:660:4406:294:8:1:0:5",
+      "kavlan-9": "2001:660:4406:295:8:1:0:5"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.5",
-      "ip6": "2001:660:4406:200:8:0::5",
+      "ip6": "2001:660:4406:200:8::5",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:6f:e0",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.105",
-      "ip6": "2001:660:4406:200:8:1::5",
+      "ip6": "2001:660:4406:200:8:1:0:5",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:6f:e1",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-6.json b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-6.json
index 2cbb934920093c6810b3e7c0391e83f24072dcce..269719ce0c3914a33d201205c1e3c26e1a36ae7f 100644
--- a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-6.json
+++ b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-6.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:8:0::6",
-      "kavlan-11": "2001:660:4406:1a0:208:0::6",
-      "kavlan-12": "2001:660:4406:2a0:208:0::6",
-      "kavlan-13": "2001:660:4406:4a0:208:0::6",
-      "kavlan-14": "2001:660:4406:5a0:208:0::6",
-      "kavlan-16": "2001:660:4406:7a0:208:0::6",
-      "kavlan-18": "2001:660:4406:8a0:208:0::6",
-      "kavlan-2": "2001:660:4406:281:8:0::6",
-      "kavlan-20": "2001:660:4406:3a0:208:0::6",
-      "kavlan-21": "2001:660:4406:6a0:208:0::6",
-      "kavlan-3": "2001:660:4406:282:8:0::6",
-      "kavlan-4": "2001:660:4406:290:8:0::6",
-      "kavlan-5": "2001:660:4406:291:8:0::6",
-      "kavlan-6": "2001:660:4406:292:8:0::6",
-      "kavlan-7": "2001:660:4406:293:8:0::6",
-      "kavlan-8": "2001:660:4406:294:8:0::6",
-      "kavlan-9": "2001:660:4406:295:8:0::6"
+      "kavlan-1": "2001:660:4406:280:8::6",
+      "kavlan-11": "2001:660:4406:1a0:208::6",
+      "kavlan-12": "2001:660:4406:2a0:208::6",
+      "kavlan-13": "2001:660:4406:4a0:208::6",
+      "kavlan-14": "2001:660:4406:5a0:208::6",
+      "kavlan-16": "2001:660:4406:7a0:208::6",
+      "kavlan-18": "2001:660:4406:8a0:208::6",
+      "kavlan-2": "2001:660:4406:281:8::6",
+      "kavlan-20": "2001:660:4406:3a0:208::6",
+      "kavlan-21": "2001:660:4406:6a0:208::6",
+      "kavlan-3": "2001:660:4406:282:8::6",
+      "kavlan-4": "2001:660:4406:290:8::6",
+      "kavlan-5": "2001:660:4406:291:8::6",
+      "kavlan-6": "2001:660:4406:292:8::6",
+      "kavlan-7": "2001:660:4406:293:8::6",
+      "kavlan-8": "2001:660:4406:294:8::6",
+      "kavlan-9": "2001:660:4406:295:8::6"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:8:1::6",
-      "kavlan-11": "2001:660:4406:1a0:208:1::6",
-      "kavlan-12": "2001:660:4406:2a0:208:1::6",
-      "kavlan-13": "2001:660:4406:4a0:208:1::6",
-      "kavlan-14": "2001:660:4406:5a0:208:1::6",
-      "kavlan-16": "2001:660:4406:7a0:208:1::6",
-      "kavlan-18": "2001:660:4406:8a0:208:1::6",
-      "kavlan-2": "2001:660:4406:281:8:1::6",
-      "kavlan-20": "2001:660:4406:3a0:208:1::6",
-      "kavlan-21": "2001:660:4406:6a0:208:1::6",
-      "kavlan-3": "2001:660:4406:282:8:1::6",
-      "kavlan-4": "2001:660:4406:290:8:1::6",
-      "kavlan-5": "2001:660:4406:291:8:1::6",
-      "kavlan-6": "2001:660:4406:292:8:1::6",
-      "kavlan-7": "2001:660:4406:293:8:1::6",
-      "kavlan-8": "2001:660:4406:294:8:1::6",
-      "kavlan-9": "2001:660:4406:295:8:1::6"
+      "kavlan-1": "2001:660:4406:280:8:1:0:6",
+      "kavlan-11": "2001:660:4406:1a0:208:1:0:6",
+      "kavlan-12": "2001:660:4406:2a0:208:1:0:6",
+      "kavlan-13": "2001:660:4406:4a0:208:1:0:6",
+      "kavlan-14": "2001:660:4406:5a0:208:1:0:6",
+      "kavlan-16": "2001:660:4406:7a0:208:1:0:6",
+      "kavlan-18": "2001:660:4406:8a0:208:1:0:6",
+      "kavlan-2": "2001:660:4406:281:8:1:0:6",
+      "kavlan-20": "2001:660:4406:3a0:208:1:0:6",
+      "kavlan-21": "2001:660:4406:6a0:208:1:0:6",
+      "kavlan-3": "2001:660:4406:282:8:1:0:6",
+      "kavlan-4": "2001:660:4406:290:8:1:0:6",
+      "kavlan-5": "2001:660:4406:291:8:1:0:6",
+      "kavlan-6": "2001:660:4406:292:8:1:0:6",
+      "kavlan-7": "2001:660:4406:293:8:1:0:6",
+      "kavlan-8": "2001:660:4406:294:8:1:0:6",
+      "kavlan-9": "2001:660:4406:295:8:1:0:6"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.6",
-      "ip6": "2001:660:4406:200:8:0::6",
+      "ip6": "2001:660:4406:200:8::6",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:75:b0",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.106",
-      "ip6": "2001:660:4406:200:8:1::6",
+      "ip6": "2001:660:4406:200:8:1:0:6",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:75:b1",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-7.json b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-7.json
index b4f5f2ca3c4f811c2d4186dcce6ab4429d5c4ab8..371a7453452ec32ee63ae40fa2869632d72891f7 100644
--- a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-7.json
+++ b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-7.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:8:0::7",
-      "kavlan-11": "2001:660:4406:1a0:208:0::7",
-      "kavlan-12": "2001:660:4406:2a0:208:0::7",
-      "kavlan-13": "2001:660:4406:4a0:208:0::7",
-      "kavlan-14": "2001:660:4406:5a0:208:0::7",
-      "kavlan-16": "2001:660:4406:7a0:208:0::7",
-      "kavlan-18": "2001:660:4406:8a0:208:0::7",
-      "kavlan-2": "2001:660:4406:281:8:0::7",
-      "kavlan-20": "2001:660:4406:3a0:208:0::7",
-      "kavlan-21": "2001:660:4406:6a0:208:0::7",
-      "kavlan-3": "2001:660:4406:282:8:0::7",
-      "kavlan-4": "2001:660:4406:290:8:0::7",
-      "kavlan-5": "2001:660:4406:291:8:0::7",
-      "kavlan-6": "2001:660:4406:292:8:0::7",
-      "kavlan-7": "2001:660:4406:293:8:0::7",
-      "kavlan-8": "2001:660:4406:294:8:0::7",
-      "kavlan-9": "2001:660:4406:295:8:0::7"
+      "kavlan-1": "2001:660:4406:280:8::7",
+      "kavlan-11": "2001:660:4406:1a0:208::7",
+      "kavlan-12": "2001:660:4406:2a0:208::7",
+      "kavlan-13": "2001:660:4406:4a0:208::7",
+      "kavlan-14": "2001:660:4406:5a0:208::7",
+      "kavlan-16": "2001:660:4406:7a0:208::7",
+      "kavlan-18": "2001:660:4406:8a0:208::7",
+      "kavlan-2": "2001:660:4406:281:8::7",
+      "kavlan-20": "2001:660:4406:3a0:208::7",
+      "kavlan-21": "2001:660:4406:6a0:208::7",
+      "kavlan-3": "2001:660:4406:282:8::7",
+      "kavlan-4": "2001:660:4406:290:8::7",
+      "kavlan-5": "2001:660:4406:291:8::7",
+      "kavlan-6": "2001:660:4406:292:8::7",
+      "kavlan-7": "2001:660:4406:293:8::7",
+      "kavlan-8": "2001:660:4406:294:8::7",
+      "kavlan-9": "2001:660:4406:295:8::7"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:8:1::7",
-      "kavlan-11": "2001:660:4406:1a0:208:1::7",
-      "kavlan-12": "2001:660:4406:2a0:208:1::7",
-      "kavlan-13": "2001:660:4406:4a0:208:1::7",
-      "kavlan-14": "2001:660:4406:5a0:208:1::7",
-      "kavlan-16": "2001:660:4406:7a0:208:1::7",
-      "kavlan-18": "2001:660:4406:8a0:208:1::7",
-      "kavlan-2": "2001:660:4406:281:8:1::7",
-      "kavlan-20": "2001:660:4406:3a0:208:1::7",
-      "kavlan-21": "2001:660:4406:6a0:208:1::7",
-      "kavlan-3": "2001:660:4406:282:8:1::7",
-      "kavlan-4": "2001:660:4406:290:8:1::7",
-      "kavlan-5": "2001:660:4406:291:8:1::7",
-      "kavlan-6": "2001:660:4406:292:8:1::7",
-      "kavlan-7": "2001:660:4406:293:8:1::7",
-      "kavlan-8": "2001:660:4406:294:8:1::7",
-      "kavlan-9": "2001:660:4406:295:8:1::7"
+      "kavlan-1": "2001:660:4406:280:8:1:0:7",
+      "kavlan-11": "2001:660:4406:1a0:208:1:0:7",
+      "kavlan-12": "2001:660:4406:2a0:208:1:0:7",
+      "kavlan-13": "2001:660:4406:4a0:208:1:0:7",
+      "kavlan-14": "2001:660:4406:5a0:208:1:0:7",
+      "kavlan-16": "2001:660:4406:7a0:208:1:0:7",
+      "kavlan-18": "2001:660:4406:8a0:208:1:0:7",
+      "kavlan-2": "2001:660:4406:281:8:1:0:7",
+      "kavlan-20": "2001:660:4406:3a0:208:1:0:7",
+      "kavlan-21": "2001:660:4406:6a0:208:1:0:7",
+      "kavlan-3": "2001:660:4406:282:8:1:0:7",
+      "kavlan-4": "2001:660:4406:290:8:1:0:7",
+      "kavlan-5": "2001:660:4406:291:8:1:0:7",
+      "kavlan-6": "2001:660:4406:292:8:1:0:7",
+      "kavlan-7": "2001:660:4406:293:8:1:0:7",
+      "kavlan-8": "2001:660:4406:294:8:1:0:7",
+      "kavlan-9": "2001:660:4406:295:8:1:0:7"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.7",
-      "ip6": "2001:660:4406:200:8:0::7",
+      "ip6": "2001:660:4406:200:8::7",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:72:d0",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.107",
-      "ip6": "2001:660:4406:200:8:1::7",
+      "ip6": "2001:660:4406:200:8:1:0:7",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:72:d1",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-8.json b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-8.json
index eec2fb140711420d931d1ad726bf3a35660d3042..dd37e93b8cdb45277fd911c6253ad6e309587d7a 100644
--- a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-8.json
+++ b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-8.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:8:0::8",
-      "kavlan-11": "2001:660:4406:1a0:208:0::8",
-      "kavlan-12": "2001:660:4406:2a0:208:0::8",
-      "kavlan-13": "2001:660:4406:4a0:208:0::8",
-      "kavlan-14": "2001:660:4406:5a0:208:0::8",
-      "kavlan-16": "2001:660:4406:7a0:208:0::8",
-      "kavlan-18": "2001:660:4406:8a0:208:0::8",
-      "kavlan-2": "2001:660:4406:281:8:0::8",
-      "kavlan-20": "2001:660:4406:3a0:208:0::8",
-      "kavlan-21": "2001:660:4406:6a0:208:0::8",
-      "kavlan-3": "2001:660:4406:282:8:0::8",
-      "kavlan-4": "2001:660:4406:290:8:0::8",
-      "kavlan-5": "2001:660:4406:291:8:0::8",
-      "kavlan-6": "2001:660:4406:292:8:0::8",
-      "kavlan-7": "2001:660:4406:293:8:0::8",
-      "kavlan-8": "2001:660:4406:294:8:0::8",
-      "kavlan-9": "2001:660:4406:295:8:0::8"
+      "kavlan-1": "2001:660:4406:280:8::8",
+      "kavlan-11": "2001:660:4406:1a0:208::8",
+      "kavlan-12": "2001:660:4406:2a0:208::8",
+      "kavlan-13": "2001:660:4406:4a0:208::8",
+      "kavlan-14": "2001:660:4406:5a0:208::8",
+      "kavlan-16": "2001:660:4406:7a0:208::8",
+      "kavlan-18": "2001:660:4406:8a0:208::8",
+      "kavlan-2": "2001:660:4406:281:8::8",
+      "kavlan-20": "2001:660:4406:3a0:208::8",
+      "kavlan-21": "2001:660:4406:6a0:208::8",
+      "kavlan-3": "2001:660:4406:282:8::8",
+      "kavlan-4": "2001:660:4406:290:8::8",
+      "kavlan-5": "2001:660:4406:291:8::8",
+      "kavlan-6": "2001:660:4406:292:8::8",
+      "kavlan-7": "2001:660:4406:293:8::8",
+      "kavlan-8": "2001:660:4406:294:8::8",
+      "kavlan-9": "2001:660:4406:295:8::8"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:8:1::8",
-      "kavlan-11": "2001:660:4406:1a0:208:1::8",
-      "kavlan-12": "2001:660:4406:2a0:208:1::8",
-      "kavlan-13": "2001:660:4406:4a0:208:1::8",
-      "kavlan-14": "2001:660:4406:5a0:208:1::8",
-      "kavlan-16": "2001:660:4406:7a0:208:1::8",
-      "kavlan-18": "2001:660:4406:8a0:208:1::8",
-      "kavlan-2": "2001:660:4406:281:8:1::8",
-      "kavlan-20": "2001:660:4406:3a0:208:1::8",
-      "kavlan-21": "2001:660:4406:6a0:208:1::8",
-      "kavlan-3": "2001:660:4406:282:8:1::8",
-      "kavlan-4": "2001:660:4406:290:8:1::8",
-      "kavlan-5": "2001:660:4406:291:8:1::8",
-      "kavlan-6": "2001:660:4406:292:8:1::8",
-      "kavlan-7": "2001:660:4406:293:8:1::8",
-      "kavlan-8": "2001:660:4406:294:8:1::8",
-      "kavlan-9": "2001:660:4406:295:8:1::8"
+      "kavlan-1": "2001:660:4406:280:8:1:0:8",
+      "kavlan-11": "2001:660:4406:1a0:208:1:0:8",
+      "kavlan-12": "2001:660:4406:2a0:208:1:0:8",
+      "kavlan-13": "2001:660:4406:4a0:208:1:0:8",
+      "kavlan-14": "2001:660:4406:5a0:208:1:0:8",
+      "kavlan-16": "2001:660:4406:7a0:208:1:0:8",
+      "kavlan-18": "2001:660:4406:8a0:208:1:0:8",
+      "kavlan-2": "2001:660:4406:281:8:1:0:8",
+      "kavlan-20": "2001:660:4406:3a0:208:1:0:8",
+      "kavlan-21": "2001:660:4406:6a0:208:1:0:8",
+      "kavlan-3": "2001:660:4406:282:8:1:0:8",
+      "kavlan-4": "2001:660:4406:290:8:1:0:8",
+      "kavlan-5": "2001:660:4406:291:8:1:0:8",
+      "kavlan-6": "2001:660:4406:292:8:1:0:8",
+      "kavlan-7": "2001:660:4406:293:8:1:0:8",
+      "kavlan-8": "2001:660:4406:294:8:1:0:8",
+      "kavlan-9": "2001:660:4406:295:8:1:0:8"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.8",
-      "ip6": "2001:660:4406:200:8:0::8",
+      "ip6": "2001:660:4406:200:8::8",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:70:60",
       "management": false,
@@ -134,7 +134,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.108",
-      "ip6": "2001:660:4406:200:8:1::8",
+      "ip6": "2001:660:4406:200:8:1:0:8",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:70:61",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-1.json b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-1.json
index 29b65e83998fbb235b9841d872af7eacfc347204..ed3a682464c64114baee7b1b43ba93c9d0ae0600 100644
--- a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-1.json
+++ b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-1.json
@@ -80,42 +80,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:7:0::1",
-      "kavlan-11": "2001:660:4406:1a0:207:0::1",
-      "kavlan-12": "2001:660:4406:2a0:207:0::1",
-      "kavlan-13": "2001:660:4406:4a0:207:0::1",
-      "kavlan-14": "2001:660:4406:5a0:207:0::1",
-      "kavlan-16": "2001:660:4406:7a0:207:0::1",
-      "kavlan-18": "2001:660:4406:8a0:207:0::1",
-      "kavlan-2": "2001:660:4406:281:7:0::1",
-      "kavlan-20": "2001:660:4406:3a0:207:0::1",
-      "kavlan-21": "2001:660:4406:6a0:207:0::1",
-      "kavlan-3": "2001:660:4406:282:7:0::1",
-      "kavlan-4": "2001:660:4406:290:7:0::1",
-      "kavlan-5": "2001:660:4406:291:7:0::1",
-      "kavlan-6": "2001:660:4406:292:7:0::1",
-      "kavlan-7": "2001:660:4406:293:7:0::1",
-      "kavlan-8": "2001:660:4406:294:7:0::1",
-      "kavlan-9": "2001:660:4406:295:7:0::1"
+      "kavlan-1": "2001:660:4406:280:7::1",
+      "kavlan-11": "2001:660:4406:1a0:207::1",
+      "kavlan-12": "2001:660:4406:2a0:207::1",
+      "kavlan-13": "2001:660:4406:4a0:207::1",
+      "kavlan-14": "2001:660:4406:5a0:207::1",
+      "kavlan-16": "2001:660:4406:7a0:207::1",
+      "kavlan-18": "2001:660:4406:8a0:207::1",
+      "kavlan-2": "2001:660:4406:281:7::1",
+      "kavlan-20": "2001:660:4406:3a0:207::1",
+      "kavlan-21": "2001:660:4406:6a0:207::1",
+      "kavlan-3": "2001:660:4406:282:7::1",
+      "kavlan-4": "2001:660:4406:290:7::1",
+      "kavlan-5": "2001:660:4406:291:7::1",
+      "kavlan-6": "2001:660:4406:292:7::1",
+      "kavlan-7": "2001:660:4406:293:7::1",
+      "kavlan-8": "2001:660:4406:294:7::1",
+      "kavlan-9": "2001:660:4406:295:7::1"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:7:1::1",
-      "kavlan-11": "2001:660:4406:1a0:207:1::1",
-      "kavlan-12": "2001:660:4406:2a0:207:1::1",
-      "kavlan-13": "2001:660:4406:4a0:207:1::1",
-      "kavlan-14": "2001:660:4406:5a0:207:1::1",
-      "kavlan-16": "2001:660:4406:7a0:207:1::1",
-      "kavlan-18": "2001:660:4406:8a0:207:1::1",
-      "kavlan-2": "2001:660:4406:281:7:1::1",
-      "kavlan-20": "2001:660:4406:3a0:207:1::1",
-      "kavlan-21": "2001:660:4406:6a0:207:1::1",
-      "kavlan-3": "2001:660:4406:282:7:1::1",
-      "kavlan-4": "2001:660:4406:290:7:1::1",
-      "kavlan-5": "2001:660:4406:291:7:1::1",
-      "kavlan-6": "2001:660:4406:292:7:1::1",
-      "kavlan-7": "2001:660:4406:293:7:1::1",
-      "kavlan-8": "2001:660:4406:294:7:1::1",
-      "kavlan-9": "2001:660:4406:295:7:1::1"
+      "kavlan-1": "2001:660:4406:280:7:1:0:1",
+      "kavlan-11": "2001:660:4406:1a0:207:1:0:1",
+      "kavlan-12": "2001:660:4406:2a0:207:1:0:1",
+      "kavlan-13": "2001:660:4406:4a0:207:1:0:1",
+      "kavlan-14": "2001:660:4406:5a0:207:1:0:1",
+      "kavlan-16": "2001:660:4406:7a0:207:1:0:1",
+      "kavlan-18": "2001:660:4406:8a0:207:1:0:1",
+      "kavlan-2": "2001:660:4406:281:7:1:0:1",
+      "kavlan-20": "2001:660:4406:3a0:207:1:0:1",
+      "kavlan-21": "2001:660:4406:6a0:207:1:0:1",
+      "kavlan-3": "2001:660:4406:282:7:1:0:1",
+      "kavlan-4": "2001:660:4406:290:7:1:0:1",
+      "kavlan-5": "2001:660:4406:291:7:1:0:1",
+      "kavlan-6": "2001:660:4406:292:7:1:0:1",
+      "kavlan-7": "2001:660:4406:293:7:1:0:1",
+      "kavlan-8": "2001:660:4406:294:7:1:0:1",
+      "kavlan-9": "2001:660:4406:295:7:1:0:1"
     }
   },
   "main_memory": {
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.1",
-      "ip6": "2001:660:4406:200:7:0::1",
+      "ip6": "2001:660:4406:200:7::1",
       "kavlan": true,
       "mac": "24:6e:96:2c:be:e8",
       "management": false,
@@ -154,7 +154,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.101",
-      "ip6": "2001:660:4406:200:7:1::1",
+      "ip6": "2001:660:4406:200:7:1:0:1",
       "kavlan": true,
       "mac": "24:6e:96:2c:be:ea",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-2.json b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-2.json
index 46ea886470cd560295a27c23598d7ec096a98e4f..a5a2bc7493c98c52fb741eea330fe019451c412c 100644
--- a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-2.json
+++ b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-2.json
@@ -80,42 +80,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:7:0::2",
-      "kavlan-11": "2001:660:4406:1a0:207:0::2",
-      "kavlan-12": "2001:660:4406:2a0:207:0::2",
-      "kavlan-13": "2001:660:4406:4a0:207:0::2",
-      "kavlan-14": "2001:660:4406:5a0:207:0::2",
-      "kavlan-16": "2001:660:4406:7a0:207:0::2",
-      "kavlan-18": "2001:660:4406:8a0:207:0::2",
-      "kavlan-2": "2001:660:4406:281:7:0::2",
-      "kavlan-20": "2001:660:4406:3a0:207:0::2",
-      "kavlan-21": "2001:660:4406:6a0:207:0::2",
-      "kavlan-3": "2001:660:4406:282:7:0::2",
-      "kavlan-4": "2001:660:4406:290:7:0::2",
-      "kavlan-5": "2001:660:4406:291:7:0::2",
-      "kavlan-6": "2001:660:4406:292:7:0::2",
-      "kavlan-7": "2001:660:4406:293:7:0::2",
-      "kavlan-8": "2001:660:4406:294:7:0::2",
-      "kavlan-9": "2001:660:4406:295:7:0::2"
+      "kavlan-1": "2001:660:4406:280:7::2",
+      "kavlan-11": "2001:660:4406:1a0:207::2",
+      "kavlan-12": "2001:660:4406:2a0:207::2",
+      "kavlan-13": "2001:660:4406:4a0:207::2",
+      "kavlan-14": "2001:660:4406:5a0:207::2",
+      "kavlan-16": "2001:660:4406:7a0:207::2",
+      "kavlan-18": "2001:660:4406:8a0:207::2",
+      "kavlan-2": "2001:660:4406:281:7::2",
+      "kavlan-20": "2001:660:4406:3a0:207::2",
+      "kavlan-21": "2001:660:4406:6a0:207::2",
+      "kavlan-3": "2001:660:4406:282:7::2",
+      "kavlan-4": "2001:660:4406:290:7::2",
+      "kavlan-5": "2001:660:4406:291:7::2",
+      "kavlan-6": "2001:660:4406:292:7::2",
+      "kavlan-7": "2001:660:4406:293:7::2",
+      "kavlan-8": "2001:660:4406:294:7::2",
+      "kavlan-9": "2001:660:4406:295:7::2"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:7:1::2",
-      "kavlan-11": "2001:660:4406:1a0:207:1::2",
-      "kavlan-12": "2001:660:4406:2a0:207:1::2",
-      "kavlan-13": "2001:660:4406:4a0:207:1::2",
-      "kavlan-14": "2001:660:4406:5a0:207:1::2",
-      "kavlan-16": "2001:660:4406:7a0:207:1::2",
-      "kavlan-18": "2001:660:4406:8a0:207:1::2",
-      "kavlan-2": "2001:660:4406:281:7:1::2",
-      "kavlan-20": "2001:660:4406:3a0:207:1::2",
-      "kavlan-21": "2001:660:4406:6a0:207:1::2",
-      "kavlan-3": "2001:660:4406:282:7:1::2",
-      "kavlan-4": "2001:660:4406:290:7:1::2",
-      "kavlan-5": "2001:660:4406:291:7:1::2",
-      "kavlan-6": "2001:660:4406:292:7:1::2",
-      "kavlan-7": "2001:660:4406:293:7:1::2",
-      "kavlan-8": "2001:660:4406:294:7:1::2",
-      "kavlan-9": "2001:660:4406:295:7:1::2"
+      "kavlan-1": "2001:660:4406:280:7:1:0:2",
+      "kavlan-11": "2001:660:4406:1a0:207:1:0:2",
+      "kavlan-12": "2001:660:4406:2a0:207:1:0:2",
+      "kavlan-13": "2001:660:4406:4a0:207:1:0:2",
+      "kavlan-14": "2001:660:4406:5a0:207:1:0:2",
+      "kavlan-16": "2001:660:4406:7a0:207:1:0:2",
+      "kavlan-18": "2001:660:4406:8a0:207:1:0:2",
+      "kavlan-2": "2001:660:4406:281:7:1:0:2",
+      "kavlan-20": "2001:660:4406:3a0:207:1:0:2",
+      "kavlan-21": "2001:660:4406:6a0:207:1:0:2",
+      "kavlan-3": "2001:660:4406:282:7:1:0:2",
+      "kavlan-4": "2001:660:4406:290:7:1:0:2",
+      "kavlan-5": "2001:660:4406:291:7:1:0:2",
+      "kavlan-6": "2001:660:4406:292:7:1:0:2",
+      "kavlan-7": "2001:660:4406:293:7:1:0:2",
+      "kavlan-8": "2001:660:4406:294:7:1:0:2",
+      "kavlan-9": "2001:660:4406:295:7:1:0:2"
     }
   },
   "main_memory": {
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.2",
-      "ip6": "2001:660:4406:200:7:0::2",
+      "ip6": "2001:660:4406:200:7::2",
       "kavlan": true,
       "mac": "24:6e:96:2c:c0:c8",
       "management": false,
@@ -154,7 +154,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.102",
-      "ip6": "2001:660:4406:200:7:1::2",
+      "ip6": "2001:660:4406:200:7:1:0:2",
       "kavlan": true,
       "mac": "24:6e:96:2c:c0:ca",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-3.json b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-3.json
index a8debf1fc0500b3e136912dc7e9b04f77a0c78a1..e93e183777a68c3efa47d795008df86c89e416c2 100644
--- a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-3.json
+++ b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-3.json
@@ -80,42 +80,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:7:0::3",
-      "kavlan-11": "2001:660:4406:1a0:207:0::3",
-      "kavlan-12": "2001:660:4406:2a0:207:0::3",
-      "kavlan-13": "2001:660:4406:4a0:207:0::3",
-      "kavlan-14": "2001:660:4406:5a0:207:0::3",
-      "kavlan-16": "2001:660:4406:7a0:207:0::3",
-      "kavlan-18": "2001:660:4406:8a0:207:0::3",
-      "kavlan-2": "2001:660:4406:281:7:0::3",
-      "kavlan-20": "2001:660:4406:3a0:207:0::3",
-      "kavlan-21": "2001:660:4406:6a0:207:0::3",
-      "kavlan-3": "2001:660:4406:282:7:0::3",
-      "kavlan-4": "2001:660:4406:290:7:0::3",
-      "kavlan-5": "2001:660:4406:291:7:0::3",
-      "kavlan-6": "2001:660:4406:292:7:0::3",
-      "kavlan-7": "2001:660:4406:293:7:0::3",
-      "kavlan-8": "2001:660:4406:294:7:0::3",
-      "kavlan-9": "2001:660:4406:295:7:0::3"
+      "kavlan-1": "2001:660:4406:280:7::3",
+      "kavlan-11": "2001:660:4406:1a0:207::3",
+      "kavlan-12": "2001:660:4406:2a0:207::3",
+      "kavlan-13": "2001:660:4406:4a0:207::3",
+      "kavlan-14": "2001:660:4406:5a0:207::3",
+      "kavlan-16": "2001:660:4406:7a0:207::3",
+      "kavlan-18": "2001:660:4406:8a0:207::3",
+      "kavlan-2": "2001:660:4406:281:7::3",
+      "kavlan-20": "2001:660:4406:3a0:207::3",
+      "kavlan-21": "2001:660:4406:6a0:207::3",
+      "kavlan-3": "2001:660:4406:282:7::3",
+      "kavlan-4": "2001:660:4406:290:7::3",
+      "kavlan-5": "2001:660:4406:291:7::3",
+      "kavlan-6": "2001:660:4406:292:7::3",
+      "kavlan-7": "2001:660:4406:293:7::3",
+      "kavlan-8": "2001:660:4406:294:7::3",
+      "kavlan-9": "2001:660:4406:295:7::3"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:7:1::3",
-      "kavlan-11": "2001:660:4406:1a0:207:1::3",
-      "kavlan-12": "2001:660:4406:2a0:207:1::3",
-      "kavlan-13": "2001:660:4406:4a0:207:1::3",
-      "kavlan-14": "2001:660:4406:5a0:207:1::3",
-      "kavlan-16": "2001:660:4406:7a0:207:1::3",
-      "kavlan-18": "2001:660:4406:8a0:207:1::3",
-      "kavlan-2": "2001:660:4406:281:7:1::3",
-      "kavlan-20": "2001:660:4406:3a0:207:1::3",
-      "kavlan-21": "2001:660:4406:6a0:207:1::3",
-      "kavlan-3": "2001:660:4406:282:7:1::3",
-      "kavlan-4": "2001:660:4406:290:7:1::3",
-      "kavlan-5": "2001:660:4406:291:7:1::3",
-      "kavlan-6": "2001:660:4406:292:7:1::3",
-      "kavlan-7": "2001:660:4406:293:7:1::3",
-      "kavlan-8": "2001:660:4406:294:7:1::3",
-      "kavlan-9": "2001:660:4406:295:7:1::3"
+      "kavlan-1": "2001:660:4406:280:7:1:0:3",
+      "kavlan-11": "2001:660:4406:1a0:207:1:0:3",
+      "kavlan-12": "2001:660:4406:2a0:207:1:0:3",
+      "kavlan-13": "2001:660:4406:4a0:207:1:0:3",
+      "kavlan-14": "2001:660:4406:5a0:207:1:0:3",
+      "kavlan-16": "2001:660:4406:7a0:207:1:0:3",
+      "kavlan-18": "2001:660:4406:8a0:207:1:0:3",
+      "kavlan-2": "2001:660:4406:281:7:1:0:3",
+      "kavlan-20": "2001:660:4406:3a0:207:1:0:3",
+      "kavlan-21": "2001:660:4406:6a0:207:1:0:3",
+      "kavlan-3": "2001:660:4406:282:7:1:0:3",
+      "kavlan-4": "2001:660:4406:290:7:1:0:3",
+      "kavlan-5": "2001:660:4406:291:7:1:0:3",
+      "kavlan-6": "2001:660:4406:292:7:1:0:3",
+      "kavlan-7": "2001:660:4406:293:7:1:0:3",
+      "kavlan-8": "2001:660:4406:294:7:1:0:3",
+      "kavlan-9": "2001:660:4406:295:7:1:0:3"
     }
   },
   "main_memory": {
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.3",
-      "ip6": "2001:660:4406:200:7:0::3",
+      "ip6": "2001:660:4406:200:7::3",
       "kavlan": true,
       "mac": "24:6e:96:2c:bd:10",
       "management": false,
@@ -154,7 +154,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.103",
-      "ip6": "2001:660:4406:200:7:1::3",
+      "ip6": "2001:660:4406:200:7:1:0:3",
       "kavlan": true,
       "mac": "24:6e:96:2c:bd:12",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-4.json b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-4.json
index 6f5c6c54e5a1313b74669043c106780d76345203..5ef184f5663e69cb649995acd3190acd1f314db7 100644
--- a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-4.json
+++ b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-4.json
@@ -80,42 +80,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:7:0::4",
-      "kavlan-11": "2001:660:4406:1a0:207:0::4",
-      "kavlan-12": "2001:660:4406:2a0:207:0::4",
-      "kavlan-13": "2001:660:4406:4a0:207:0::4",
-      "kavlan-14": "2001:660:4406:5a0:207:0::4",
-      "kavlan-16": "2001:660:4406:7a0:207:0::4",
-      "kavlan-18": "2001:660:4406:8a0:207:0::4",
-      "kavlan-2": "2001:660:4406:281:7:0::4",
-      "kavlan-20": "2001:660:4406:3a0:207:0::4",
-      "kavlan-21": "2001:660:4406:6a0:207:0::4",
-      "kavlan-3": "2001:660:4406:282:7:0::4",
-      "kavlan-4": "2001:660:4406:290:7:0::4",
-      "kavlan-5": "2001:660:4406:291:7:0::4",
-      "kavlan-6": "2001:660:4406:292:7:0::4",
-      "kavlan-7": "2001:660:4406:293:7:0::4",
-      "kavlan-8": "2001:660:4406:294:7:0::4",
-      "kavlan-9": "2001:660:4406:295:7:0::4"
+      "kavlan-1": "2001:660:4406:280:7::4",
+      "kavlan-11": "2001:660:4406:1a0:207::4",
+      "kavlan-12": "2001:660:4406:2a0:207::4",
+      "kavlan-13": "2001:660:4406:4a0:207::4",
+      "kavlan-14": "2001:660:4406:5a0:207::4",
+      "kavlan-16": "2001:660:4406:7a0:207::4",
+      "kavlan-18": "2001:660:4406:8a0:207::4",
+      "kavlan-2": "2001:660:4406:281:7::4",
+      "kavlan-20": "2001:660:4406:3a0:207::4",
+      "kavlan-21": "2001:660:4406:6a0:207::4",
+      "kavlan-3": "2001:660:4406:282:7::4",
+      "kavlan-4": "2001:660:4406:290:7::4",
+      "kavlan-5": "2001:660:4406:291:7::4",
+      "kavlan-6": "2001:660:4406:292:7::4",
+      "kavlan-7": "2001:660:4406:293:7::4",
+      "kavlan-8": "2001:660:4406:294:7::4",
+      "kavlan-9": "2001:660:4406:295:7::4"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:7:1::4",
-      "kavlan-11": "2001:660:4406:1a0:207:1::4",
-      "kavlan-12": "2001:660:4406:2a0:207:1::4",
-      "kavlan-13": "2001:660:4406:4a0:207:1::4",
-      "kavlan-14": "2001:660:4406:5a0:207:1::4",
-      "kavlan-16": "2001:660:4406:7a0:207:1::4",
-      "kavlan-18": "2001:660:4406:8a0:207:1::4",
-      "kavlan-2": "2001:660:4406:281:7:1::4",
-      "kavlan-20": "2001:660:4406:3a0:207:1::4",
-      "kavlan-21": "2001:660:4406:6a0:207:1::4",
-      "kavlan-3": "2001:660:4406:282:7:1::4",
-      "kavlan-4": "2001:660:4406:290:7:1::4",
-      "kavlan-5": "2001:660:4406:291:7:1::4",
-      "kavlan-6": "2001:660:4406:292:7:1::4",
-      "kavlan-7": "2001:660:4406:293:7:1::4",
-      "kavlan-8": "2001:660:4406:294:7:1::4",
-      "kavlan-9": "2001:660:4406:295:7:1::4"
+      "kavlan-1": "2001:660:4406:280:7:1:0:4",
+      "kavlan-11": "2001:660:4406:1a0:207:1:0:4",
+      "kavlan-12": "2001:660:4406:2a0:207:1:0:4",
+      "kavlan-13": "2001:660:4406:4a0:207:1:0:4",
+      "kavlan-14": "2001:660:4406:5a0:207:1:0:4",
+      "kavlan-16": "2001:660:4406:7a0:207:1:0:4",
+      "kavlan-18": "2001:660:4406:8a0:207:1:0:4",
+      "kavlan-2": "2001:660:4406:281:7:1:0:4",
+      "kavlan-20": "2001:660:4406:3a0:207:1:0:4",
+      "kavlan-21": "2001:660:4406:6a0:207:1:0:4",
+      "kavlan-3": "2001:660:4406:282:7:1:0:4",
+      "kavlan-4": "2001:660:4406:290:7:1:0:4",
+      "kavlan-5": "2001:660:4406:291:7:1:0:4",
+      "kavlan-6": "2001:660:4406:292:7:1:0:4",
+      "kavlan-7": "2001:660:4406:293:7:1:0:4",
+      "kavlan-8": "2001:660:4406:294:7:1:0:4",
+      "kavlan-9": "2001:660:4406:295:7:1:0:4"
     }
   },
   "main_memory": {
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.4",
-      "ip6": "2001:660:4406:200:7:0::4",
+      "ip6": "2001:660:4406:200:7::4",
       "kavlan": true,
       "mac": "24:6e:96:2c:ba:c0",
       "management": false,
@@ -154,7 +154,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.104",
-      "ip6": "2001:660:4406:200:7:1::4",
+      "ip6": "2001:660:4406:200:7:1:0:4",
       "kavlan": true,
       "mac": "24:6e:96:2c:ba:c2",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-5.json b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-5.json
index 1386dc3d3d3625f060b8d552d27cf3d20d345f3e..58d8aedc88d4fe0e915d90660376d29d53d7a324 100644
--- a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-5.json
+++ b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-5.json
@@ -80,42 +80,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:7:0::5",
-      "kavlan-11": "2001:660:4406:1a0:207:0::5",
-      "kavlan-12": "2001:660:4406:2a0:207:0::5",
-      "kavlan-13": "2001:660:4406:4a0:207:0::5",
-      "kavlan-14": "2001:660:4406:5a0:207:0::5",
-      "kavlan-16": "2001:660:4406:7a0:207:0::5",
-      "kavlan-18": "2001:660:4406:8a0:207:0::5",
-      "kavlan-2": "2001:660:4406:281:7:0::5",
-      "kavlan-20": "2001:660:4406:3a0:207:0::5",
-      "kavlan-21": "2001:660:4406:6a0:207:0::5",
-      "kavlan-3": "2001:660:4406:282:7:0::5",
-      "kavlan-4": "2001:660:4406:290:7:0::5",
-      "kavlan-5": "2001:660:4406:291:7:0::5",
-      "kavlan-6": "2001:660:4406:292:7:0::5",
-      "kavlan-7": "2001:660:4406:293:7:0::5",
-      "kavlan-8": "2001:660:4406:294:7:0::5",
-      "kavlan-9": "2001:660:4406:295:7:0::5"
+      "kavlan-1": "2001:660:4406:280:7::5",
+      "kavlan-11": "2001:660:4406:1a0:207::5",
+      "kavlan-12": "2001:660:4406:2a0:207::5",
+      "kavlan-13": "2001:660:4406:4a0:207::5",
+      "kavlan-14": "2001:660:4406:5a0:207::5",
+      "kavlan-16": "2001:660:4406:7a0:207::5",
+      "kavlan-18": "2001:660:4406:8a0:207::5",
+      "kavlan-2": "2001:660:4406:281:7::5",
+      "kavlan-20": "2001:660:4406:3a0:207::5",
+      "kavlan-21": "2001:660:4406:6a0:207::5",
+      "kavlan-3": "2001:660:4406:282:7::5",
+      "kavlan-4": "2001:660:4406:290:7::5",
+      "kavlan-5": "2001:660:4406:291:7::5",
+      "kavlan-6": "2001:660:4406:292:7::5",
+      "kavlan-7": "2001:660:4406:293:7::5",
+      "kavlan-8": "2001:660:4406:294:7::5",
+      "kavlan-9": "2001:660:4406:295:7::5"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:7:1::5",
-      "kavlan-11": "2001:660:4406:1a0:207:1::5",
-      "kavlan-12": "2001:660:4406:2a0:207:1::5",
-      "kavlan-13": "2001:660:4406:4a0:207:1::5",
-      "kavlan-14": "2001:660:4406:5a0:207:1::5",
-      "kavlan-16": "2001:660:4406:7a0:207:1::5",
-      "kavlan-18": "2001:660:4406:8a0:207:1::5",
-      "kavlan-2": "2001:660:4406:281:7:1::5",
-      "kavlan-20": "2001:660:4406:3a0:207:1::5",
-      "kavlan-21": "2001:660:4406:6a0:207:1::5",
-      "kavlan-3": "2001:660:4406:282:7:1::5",
-      "kavlan-4": "2001:660:4406:290:7:1::5",
-      "kavlan-5": "2001:660:4406:291:7:1::5",
-      "kavlan-6": "2001:660:4406:292:7:1::5",
-      "kavlan-7": "2001:660:4406:293:7:1::5",
-      "kavlan-8": "2001:660:4406:294:7:1::5",
-      "kavlan-9": "2001:660:4406:295:7:1::5"
+      "kavlan-1": "2001:660:4406:280:7:1:0:5",
+      "kavlan-11": "2001:660:4406:1a0:207:1:0:5",
+      "kavlan-12": "2001:660:4406:2a0:207:1:0:5",
+      "kavlan-13": "2001:660:4406:4a0:207:1:0:5",
+      "kavlan-14": "2001:660:4406:5a0:207:1:0:5",
+      "kavlan-16": "2001:660:4406:7a0:207:1:0:5",
+      "kavlan-18": "2001:660:4406:8a0:207:1:0:5",
+      "kavlan-2": "2001:660:4406:281:7:1:0:5",
+      "kavlan-20": "2001:660:4406:3a0:207:1:0:5",
+      "kavlan-21": "2001:660:4406:6a0:207:1:0:5",
+      "kavlan-3": "2001:660:4406:282:7:1:0:5",
+      "kavlan-4": "2001:660:4406:290:7:1:0:5",
+      "kavlan-5": "2001:660:4406:291:7:1:0:5",
+      "kavlan-6": "2001:660:4406:292:7:1:0:5",
+      "kavlan-7": "2001:660:4406:293:7:1:0:5",
+      "kavlan-8": "2001:660:4406:294:7:1:0:5",
+      "kavlan-9": "2001:660:4406:295:7:1:0:5"
     }
   },
   "main_memory": {
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.5",
-      "ip6": "2001:660:4406:200:7:0::5",
+      "ip6": "2001:660:4406:200:7::5",
       "kavlan": true,
       "mac": "24:6e:96:2c:c1:58",
       "management": false,
@@ -154,7 +154,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.105",
-      "ip6": "2001:660:4406:200:7:1::5",
+      "ip6": "2001:660:4406:200:7:1:0:5",
       "kavlan": true,
       "mac": "24:6e:96:2c:c1:5a",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-6.json b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-6.json
index 6341a69a48b8fac20373680e75b0968591fa8440..9d874fe488918f51f3c1af38eaab9b1c426a8960 100644
--- a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-6.json
+++ b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-6.json
@@ -80,42 +80,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:7:0::6",
-      "kavlan-11": "2001:660:4406:1a0:207:0::6",
-      "kavlan-12": "2001:660:4406:2a0:207:0::6",
-      "kavlan-13": "2001:660:4406:4a0:207:0::6",
-      "kavlan-14": "2001:660:4406:5a0:207:0::6",
-      "kavlan-16": "2001:660:4406:7a0:207:0::6",
-      "kavlan-18": "2001:660:4406:8a0:207:0::6",
-      "kavlan-2": "2001:660:4406:281:7:0::6",
-      "kavlan-20": "2001:660:4406:3a0:207:0::6",
-      "kavlan-21": "2001:660:4406:6a0:207:0::6",
-      "kavlan-3": "2001:660:4406:282:7:0::6",
-      "kavlan-4": "2001:660:4406:290:7:0::6",
-      "kavlan-5": "2001:660:4406:291:7:0::6",
-      "kavlan-6": "2001:660:4406:292:7:0::6",
-      "kavlan-7": "2001:660:4406:293:7:0::6",
-      "kavlan-8": "2001:660:4406:294:7:0::6",
-      "kavlan-9": "2001:660:4406:295:7:0::6"
+      "kavlan-1": "2001:660:4406:280:7::6",
+      "kavlan-11": "2001:660:4406:1a0:207::6",
+      "kavlan-12": "2001:660:4406:2a0:207::6",
+      "kavlan-13": "2001:660:4406:4a0:207::6",
+      "kavlan-14": "2001:660:4406:5a0:207::6",
+      "kavlan-16": "2001:660:4406:7a0:207::6",
+      "kavlan-18": "2001:660:4406:8a0:207::6",
+      "kavlan-2": "2001:660:4406:281:7::6",
+      "kavlan-20": "2001:660:4406:3a0:207::6",
+      "kavlan-21": "2001:660:4406:6a0:207::6",
+      "kavlan-3": "2001:660:4406:282:7::6",
+      "kavlan-4": "2001:660:4406:290:7::6",
+      "kavlan-5": "2001:660:4406:291:7::6",
+      "kavlan-6": "2001:660:4406:292:7::6",
+      "kavlan-7": "2001:660:4406:293:7::6",
+      "kavlan-8": "2001:660:4406:294:7::6",
+      "kavlan-9": "2001:660:4406:295:7::6"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:7:1::6",
-      "kavlan-11": "2001:660:4406:1a0:207:1::6",
-      "kavlan-12": "2001:660:4406:2a0:207:1::6",
-      "kavlan-13": "2001:660:4406:4a0:207:1::6",
-      "kavlan-14": "2001:660:4406:5a0:207:1::6",
-      "kavlan-16": "2001:660:4406:7a0:207:1::6",
-      "kavlan-18": "2001:660:4406:8a0:207:1::6",
-      "kavlan-2": "2001:660:4406:281:7:1::6",
-      "kavlan-20": "2001:660:4406:3a0:207:1::6",
-      "kavlan-21": "2001:660:4406:6a0:207:1::6",
-      "kavlan-3": "2001:660:4406:282:7:1::6",
-      "kavlan-4": "2001:660:4406:290:7:1::6",
-      "kavlan-5": "2001:660:4406:291:7:1::6",
-      "kavlan-6": "2001:660:4406:292:7:1::6",
-      "kavlan-7": "2001:660:4406:293:7:1::6",
-      "kavlan-8": "2001:660:4406:294:7:1::6",
-      "kavlan-9": "2001:660:4406:295:7:1::6"
+      "kavlan-1": "2001:660:4406:280:7:1:0:6",
+      "kavlan-11": "2001:660:4406:1a0:207:1:0:6",
+      "kavlan-12": "2001:660:4406:2a0:207:1:0:6",
+      "kavlan-13": "2001:660:4406:4a0:207:1:0:6",
+      "kavlan-14": "2001:660:4406:5a0:207:1:0:6",
+      "kavlan-16": "2001:660:4406:7a0:207:1:0:6",
+      "kavlan-18": "2001:660:4406:8a0:207:1:0:6",
+      "kavlan-2": "2001:660:4406:281:7:1:0:6",
+      "kavlan-20": "2001:660:4406:3a0:207:1:0:6",
+      "kavlan-21": "2001:660:4406:6a0:207:1:0:6",
+      "kavlan-3": "2001:660:4406:282:7:1:0:6",
+      "kavlan-4": "2001:660:4406:290:7:1:0:6",
+      "kavlan-5": "2001:660:4406:291:7:1:0:6",
+      "kavlan-6": "2001:660:4406:292:7:1:0:6",
+      "kavlan-7": "2001:660:4406:293:7:1:0:6",
+      "kavlan-8": "2001:660:4406:294:7:1:0:6",
+      "kavlan-9": "2001:660:4406:295:7:1:0:6"
     }
   },
   "main_memory": {
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.6",
-      "ip6": "2001:660:4406:200:7:0::6",
+      "ip6": "2001:660:4406:200:7::6",
       "kavlan": true,
       "mac": "24:6e:96:2c:0b:e8",
       "management": false,
@@ -154,7 +154,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.106",
-      "ip6": "2001:660:4406:200:7:1::6",
+      "ip6": "2001:660:4406:200:7:1:0:6",
       "kavlan": true,
       "mac": "24:6e:96:2c:0b:ea",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-7.json b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-7.json
index 61ffc7988bda289bcc2dcfb02798f1c1dea3fe1b..5e60681329ceb8af580ac42c00aad39a77d4d116 100644
--- a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-7.json
+++ b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-7.json
@@ -80,42 +80,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:7:0::7",
-      "kavlan-11": "2001:660:4406:1a0:207:0::7",
-      "kavlan-12": "2001:660:4406:2a0:207:0::7",
-      "kavlan-13": "2001:660:4406:4a0:207:0::7",
-      "kavlan-14": "2001:660:4406:5a0:207:0::7",
-      "kavlan-16": "2001:660:4406:7a0:207:0::7",
-      "kavlan-18": "2001:660:4406:8a0:207:0::7",
-      "kavlan-2": "2001:660:4406:281:7:0::7",
-      "kavlan-20": "2001:660:4406:3a0:207:0::7",
-      "kavlan-21": "2001:660:4406:6a0:207:0::7",
-      "kavlan-3": "2001:660:4406:282:7:0::7",
-      "kavlan-4": "2001:660:4406:290:7:0::7",
-      "kavlan-5": "2001:660:4406:291:7:0::7",
-      "kavlan-6": "2001:660:4406:292:7:0::7",
-      "kavlan-7": "2001:660:4406:293:7:0::7",
-      "kavlan-8": "2001:660:4406:294:7:0::7",
-      "kavlan-9": "2001:660:4406:295:7:0::7"
+      "kavlan-1": "2001:660:4406:280:7::7",
+      "kavlan-11": "2001:660:4406:1a0:207::7",
+      "kavlan-12": "2001:660:4406:2a0:207::7",
+      "kavlan-13": "2001:660:4406:4a0:207::7",
+      "kavlan-14": "2001:660:4406:5a0:207::7",
+      "kavlan-16": "2001:660:4406:7a0:207::7",
+      "kavlan-18": "2001:660:4406:8a0:207::7",
+      "kavlan-2": "2001:660:4406:281:7::7",
+      "kavlan-20": "2001:660:4406:3a0:207::7",
+      "kavlan-21": "2001:660:4406:6a0:207::7",
+      "kavlan-3": "2001:660:4406:282:7::7",
+      "kavlan-4": "2001:660:4406:290:7::7",
+      "kavlan-5": "2001:660:4406:291:7::7",
+      "kavlan-6": "2001:660:4406:292:7::7",
+      "kavlan-7": "2001:660:4406:293:7::7",
+      "kavlan-8": "2001:660:4406:294:7::7",
+      "kavlan-9": "2001:660:4406:295:7::7"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:7:1::7",
-      "kavlan-11": "2001:660:4406:1a0:207:1::7",
-      "kavlan-12": "2001:660:4406:2a0:207:1::7",
-      "kavlan-13": "2001:660:4406:4a0:207:1::7",
-      "kavlan-14": "2001:660:4406:5a0:207:1::7",
-      "kavlan-16": "2001:660:4406:7a0:207:1::7",
-      "kavlan-18": "2001:660:4406:8a0:207:1::7",
-      "kavlan-2": "2001:660:4406:281:7:1::7",
-      "kavlan-20": "2001:660:4406:3a0:207:1::7",
-      "kavlan-21": "2001:660:4406:6a0:207:1::7",
-      "kavlan-3": "2001:660:4406:282:7:1::7",
-      "kavlan-4": "2001:660:4406:290:7:1::7",
-      "kavlan-5": "2001:660:4406:291:7:1::7",
-      "kavlan-6": "2001:660:4406:292:7:1::7",
-      "kavlan-7": "2001:660:4406:293:7:1::7",
-      "kavlan-8": "2001:660:4406:294:7:1::7",
-      "kavlan-9": "2001:660:4406:295:7:1::7"
+      "kavlan-1": "2001:660:4406:280:7:1:0:7",
+      "kavlan-11": "2001:660:4406:1a0:207:1:0:7",
+      "kavlan-12": "2001:660:4406:2a0:207:1:0:7",
+      "kavlan-13": "2001:660:4406:4a0:207:1:0:7",
+      "kavlan-14": "2001:660:4406:5a0:207:1:0:7",
+      "kavlan-16": "2001:660:4406:7a0:207:1:0:7",
+      "kavlan-18": "2001:660:4406:8a0:207:1:0:7",
+      "kavlan-2": "2001:660:4406:281:7:1:0:7",
+      "kavlan-20": "2001:660:4406:3a0:207:1:0:7",
+      "kavlan-21": "2001:660:4406:6a0:207:1:0:7",
+      "kavlan-3": "2001:660:4406:282:7:1:0:7",
+      "kavlan-4": "2001:660:4406:290:7:1:0:7",
+      "kavlan-5": "2001:660:4406:291:7:1:0:7",
+      "kavlan-6": "2001:660:4406:292:7:1:0:7",
+      "kavlan-7": "2001:660:4406:293:7:1:0:7",
+      "kavlan-8": "2001:660:4406:294:7:1:0:7",
+      "kavlan-9": "2001:660:4406:295:7:1:0:7"
     }
   },
   "main_memory": {
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.7",
-      "ip6": "2001:660:4406:200:7:0::7",
+      "ip6": "2001:660:4406:200:7::7",
       "kavlan": true,
       "mac": "24:6e:96:2c:ba:b8",
       "management": false,
@@ -154,7 +154,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.107",
-      "ip6": "2001:660:4406:200:7:1::7",
+      "ip6": "2001:660:4406:200:7:1:0:7",
       "kavlan": true,
       "mac": "24:6e:96:2c:ba:ba",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-8.json b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-8.json
index d0386d81bc8a10f1461a81d15d35beae05c41b2f..9919f17064639cdb194e69c7898274cd83d7cb40 100644
--- a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-8.json
+++ b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-8.json
@@ -80,42 +80,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:7:0::8",
-      "kavlan-11": "2001:660:4406:1a0:207:0::8",
-      "kavlan-12": "2001:660:4406:2a0:207:0::8",
-      "kavlan-13": "2001:660:4406:4a0:207:0::8",
-      "kavlan-14": "2001:660:4406:5a0:207:0::8",
-      "kavlan-16": "2001:660:4406:7a0:207:0::8",
-      "kavlan-18": "2001:660:4406:8a0:207:0::8",
-      "kavlan-2": "2001:660:4406:281:7:0::8",
-      "kavlan-20": "2001:660:4406:3a0:207:0::8",
-      "kavlan-21": "2001:660:4406:6a0:207:0::8",
-      "kavlan-3": "2001:660:4406:282:7:0::8",
-      "kavlan-4": "2001:660:4406:290:7:0::8",
-      "kavlan-5": "2001:660:4406:291:7:0::8",
-      "kavlan-6": "2001:660:4406:292:7:0::8",
-      "kavlan-7": "2001:660:4406:293:7:0::8",
-      "kavlan-8": "2001:660:4406:294:7:0::8",
-      "kavlan-9": "2001:660:4406:295:7:0::8"
+      "kavlan-1": "2001:660:4406:280:7::8",
+      "kavlan-11": "2001:660:4406:1a0:207::8",
+      "kavlan-12": "2001:660:4406:2a0:207::8",
+      "kavlan-13": "2001:660:4406:4a0:207::8",
+      "kavlan-14": "2001:660:4406:5a0:207::8",
+      "kavlan-16": "2001:660:4406:7a0:207::8",
+      "kavlan-18": "2001:660:4406:8a0:207::8",
+      "kavlan-2": "2001:660:4406:281:7::8",
+      "kavlan-20": "2001:660:4406:3a0:207::8",
+      "kavlan-21": "2001:660:4406:6a0:207::8",
+      "kavlan-3": "2001:660:4406:282:7::8",
+      "kavlan-4": "2001:660:4406:290:7::8",
+      "kavlan-5": "2001:660:4406:291:7::8",
+      "kavlan-6": "2001:660:4406:292:7::8",
+      "kavlan-7": "2001:660:4406:293:7::8",
+      "kavlan-8": "2001:660:4406:294:7::8",
+      "kavlan-9": "2001:660:4406:295:7::8"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:7:1::8",
-      "kavlan-11": "2001:660:4406:1a0:207:1::8",
-      "kavlan-12": "2001:660:4406:2a0:207:1::8",
-      "kavlan-13": "2001:660:4406:4a0:207:1::8",
-      "kavlan-14": "2001:660:4406:5a0:207:1::8",
-      "kavlan-16": "2001:660:4406:7a0:207:1::8",
-      "kavlan-18": "2001:660:4406:8a0:207:1::8",
-      "kavlan-2": "2001:660:4406:281:7:1::8",
-      "kavlan-20": "2001:660:4406:3a0:207:1::8",
-      "kavlan-21": "2001:660:4406:6a0:207:1::8",
-      "kavlan-3": "2001:660:4406:282:7:1::8",
-      "kavlan-4": "2001:660:4406:290:7:1::8",
-      "kavlan-5": "2001:660:4406:291:7:1::8",
-      "kavlan-6": "2001:660:4406:292:7:1::8",
-      "kavlan-7": "2001:660:4406:293:7:1::8",
-      "kavlan-8": "2001:660:4406:294:7:1::8",
-      "kavlan-9": "2001:660:4406:295:7:1::8"
+      "kavlan-1": "2001:660:4406:280:7:1:0:8",
+      "kavlan-11": "2001:660:4406:1a0:207:1:0:8",
+      "kavlan-12": "2001:660:4406:2a0:207:1:0:8",
+      "kavlan-13": "2001:660:4406:4a0:207:1:0:8",
+      "kavlan-14": "2001:660:4406:5a0:207:1:0:8",
+      "kavlan-16": "2001:660:4406:7a0:207:1:0:8",
+      "kavlan-18": "2001:660:4406:8a0:207:1:0:8",
+      "kavlan-2": "2001:660:4406:281:7:1:0:8",
+      "kavlan-20": "2001:660:4406:3a0:207:1:0:8",
+      "kavlan-21": "2001:660:4406:6a0:207:1:0:8",
+      "kavlan-3": "2001:660:4406:282:7:1:0:8",
+      "kavlan-4": "2001:660:4406:290:7:1:0:8",
+      "kavlan-5": "2001:660:4406:291:7:1:0:8",
+      "kavlan-6": "2001:660:4406:292:7:1:0:8",
+      "kavlan-7": "2001:660:4406:293:7:1:0:8",
+      "kavlan-8": "2001:660:4406:294:7:1:0:8",
+      "kavlan-9": "2001:660:4406:295:7:1:0:8"
     }
   },
   "main_memory": {
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.8",
-      "ip6": "2001:660:4406:200:7:0::8",
+      "ip6": "2001:660:4406:200:7::8",
       "kavlan": true,
       "mac": "24:6e:96:2c:bd:80",
       "management": false,
@@ -154,7 +154,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.108",
-      "ip6": "2001:660:4406:200:7:1::8",
+      "ip6": "2001:660:4406:200:7:1:0:8",
       "kavlan": true,
       "mac": "24:6e:96:2c:bd:82",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-1.json b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-1.json
index fa2313211ec51da10254050864ff683c2cb85a84..401bc109ce19f079b9649baa811698d2fe00d6d5 100644
--- a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-1.json
+++ b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-1.json
@@ -80,42 +80,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:5:0::1",
-      "kavlan-11": "2001:660:4406:1a0:205:0::1",
-      "kavlan-12": "2001:660:4406:2a0:205:0::1",
-      "kavlan-13": "2001:660:4406:4a0:205:0::1",
-      "kavlan-14": "2001:660:4406:5a0:205:0::1",
-      "kavlan-16": "2001:660:4406:7a0:205:0::1",
-      "kavlan-18": "2001:660:4406:8a0:205:0::1",
-      "kavlan-2": "2001:660:4406:281:5:0::1",
-      "kavlan-20": "2001:660:4406:3a0:205:0::1",
-      "kavlan-21": "2001:660:4406:6a0:205:0::1",
-      "kavlan-3": "2001:660:4406:282:5:0::1",
-      "kavlan-4": "2001:660:4406:290:5:0::1",
-      "kavlan-5": "2001:660:4406:291:5:0::1",
-      "kavlan-6": "2001:660:4406:292:5:0::1",
-      "kavlan-7": "2001:660:4406:293:5:0::1",
-      "kavlan-8": "2001:660:4406:294:5:0::1",
-      "kavlan-9": "2001:660:4406:295:5:0::1"
+      "kavlan-1": "2001:660:4406:280:5::1",
+      "kavlan-11": "2001:660:4406:1a0:205::1",
+      "kavlan-12": "2001:660:4406:2a0:205::1",
+      "kavlan-13": "2001:660:4406:4a0:205::1",
+      "kavlan-14": "2001:660:4406:5a0:205::1",
+      "kavlan-16": "2001:660:4406:7a0:205::1",
+      "kavlan-18": "2001:660:4406:8a0:205::1",
+      "kavlan-2": "2001:660:4406:281:5::1",
+      "kavlan-20": "2001:660:4406:3a0:205::1",
+      "kavlan-21": "2001:660:4406:6a0:205::1",
+      "kavlan-3": "2001:660:4406:282:5::1",
+      "kavlan-4": "2001:660:4406:290:5::1",
+      "kavlan-5": "2001:660:4406:291:5::1",
+      "kavlan-6": "2001:660:4406:292:5::1",
+      "kavlan-7": "2001:660:4406:293:5::1",
+      "kavlan-8": "2001:660:4406:294:5::1",
+      "kavlan-9": "2001:660:4406:295:5::1"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:5:1::1",
-      "kavlan-11": "2001:660:4406:1a0:205:1::1",
-      "kavlan-12": "2001:660:4406:2a0:205:1::1",
-      "kavlan-13": "2001:660:4406:4a0:205:1::1",
-      "kavlan-14": "2001:660:4406:5a0:205:1::1",
-      "kavlan-16": "2001:660:4406:7a0:205:1::1",
-      "kavlan-18": "2001:660:4406:8a0:205:1::1",
-      "kavlan-2": "2001:660:4406:281:5:1::1",
-      "kavlan-20": "2001:660:4406:3a0:205:1::1",
-      "kavlan-21": "2001:660:4406:6a0:205:1::1",
-      "kavlan-3": "2001:660:4406:282:5:1::1",
-      "kavlan-4": "2001:660:4406:290:5:1::1",
-      "kavlan-5": "2001:660:4406:291:5:1::1",
-      "kavlan-6": "2001:660:4406:292:5:1::1",
-      "kavlan-7": "2001:660:4406:293:5:1::1",
-      "kavlan-8": "2001:660:4406:294:5:1::1",
-      "kavlan-9": "2001:660:4406:295:5:1::1"
+      "kavlan-1": "2001:660:4406:280:5:1:0:1",
+      "kavlan-11": "2001:660:4406:1a0:205:1:0:1",
+      "kavlan-12": "2001:660:4406:2a0:205:1:0:1",
+      "kavlan-13": "2001:660:4406:4a0:205:1:0:1",
+      "kavlan-14": "2001:660:4406:5a0:205:1:0:1",
+      "kavlan-16": "2001:660:4406:7a0:205:1:0:1",
+      "kavlan-18": "2001:660:4406:8a0:205:1:0:1",
+      "kavlan-2": "2001:660:4406:281:5:1:0:1",
+      "kavlan-20": "2001:660:4406:3a0:205:1:0:1",
+      "kavlan-21": "2001:660:4406:6a0:205:1:0:1",
+      "kavlan-3": "2001:660:4406:282:5:1:0:1",
+      "kavlan-4": "2001:660:4406:290:5:1:0:1",
+      "kavlan-5": "2001:660:4406:291:5:1:0:1",
+      "kavlan-6": "2001:660:4406:292:5:1:0:1",
+      "kavlan-7": "2001:660:4406:293:5:1:0:1",
+      "kavlan-8": "2001:660:4406:294:5:1:0:1",
+      "kavlan-9": "2001:660:4406:295:5:1:0:1"
     }
   },
   "main_memory": {
@@ -133,7 +133,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.1",
-      "ip6": "2001:660:4406:200:5:0::1",
+      "ip6": "2001:660:4406:200:5::1",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:60:30",
       "management": false,
@@ -154,7 +154,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.101",
-      "ip6": "2001:660:4406:200:5:1::1",
+      "ip6": "2001:660:4406:200:5:1:0:1",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:60:31",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-2.json b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-2.json
index 9645eaf90364b382de1a76bdabfbd655622e4e04..31e06d008b4a7886cd38bcf907fd5974e8d0e389 100644
--- a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-2.json
+++ b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-2.json
@@ -80,42 +80,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:5:0::2",
-      "kavlan-11": "2001:660:4406:1a0:205:0::2",
-      "kavlan-12": "2001:660:4406:2a0:205:0::2",
-      "kavlan-13": "2001:660:4406:4a0:205:0::2",
-      "kavlan-14": "2001:660:4406:5a0:205:0::2",
-      "kavlan-16": "2001:660:4406:7a0:205:0::2",
-      "kavlan-18": "2001:660:4406:8a0:205:0::2",
-      "kavlan-2": "2001:660:4406:281:5:0::2",
-      "kavlan-20": "2001:660:4406:3a0:205:0::2",
-      "kavlan-21": "2001:660:4406:6a0:205:0::2",
-      "kavlan-3": "2001:660:4406:282:5:0::2",
-      "kavlan-4": "2001:660:4406:290:5:0::2",
-      "kavlan-5": "2001:660:4406:291:5:0::2",
-      "kavlan-6": "2001:660:4406:292:5:0::2",
-      "kavlan-7": "2001:660:4406:293:5:0::2",
-      "kavlan-8": "2001:660:4406:294:5:0::2",
-      "kavlan-9": "2001:660:4406:295:5:0::2"
+      "kavlan-1": "2001:660:4406:280:5::2",
+      "kavlan-11": "2001:660:4406:1a0:205::2",
+      "kavlan-12": "2001:660:4406:2a0:205::2",
+      "kavlan-13": "2001:660:4406:4a0:205::2",
+      "kavlan-14": "2001:660:4406:5a0:205::2",
+      "kavlan-16": "2001:660:4406:7a0:205::2",
+      "kavlan-18": "2001:660:4406:8a0:205::2",
+      "kavlan-2": "2001:660:4406:281:5::2",
+      "kavlan-20": "2001:660:4406:3a0:205::2",
+      "kavlan-21": "2001:660:4406:6a0:205::2",
+      "kavlan-3": "2001:660:4406:282:5::2",
+      "kavlan-4": "2001:660:4406:290:5::2",
+      "kavlan-5": "2001:660:4406:291:5::2",
+      "kavlan-6": "2001:660:4406:292:5::2",
+      "kavlan-7": "2001:660:4406:293:5::2",
+      "kavlan-8": "2001:660:4406:294:5::2",
+      "kavlan-9": "2001:660:4406:295:5::2"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:5:1::2",
-      "kavlan-11": "2001:660:4406:1a0:205:1::2",
-      "kavlan-12": "2001:660:4406:2a0:205:1::2",
-      "kavlan-13": "2001:660:4406:4a0:205:1::2",
-      "kavlan-14": "2001:660:4406:5a0:205:1::2",
-      "kavlan-16": "2001:660:4406:7a0:205:1::2",
-      "kavlan-18": "2001:660:4406:8a0:205:1::2",
-      "kavlan-2": "2001:660:4406:281:5:1::2",
-      "kavlan-20": "2001:660:4406:3a0:205:1::2",
-      "kavlan-21": "2001:660:4406:6a0:205:1::2",
-      "kavlan-3": "2001:660:4406:282:5:1::2",
-      "kavlan-4": "2001:660:4406:290:5:1::2",
-      "kavlan-5": "2001:660:4406:291:5:1::2",
-      "kavlan-6": "2001:660:4406:292:5:1::2",
-      "kavlan-7": "2001:660:4406:293:5:1::2",
-      "kavlan-8": "2001:660:4406:294:5:1::2",
-      "kavlan-9": "2001:660:4406:295:5:1::2"
+      "kavlan-1": "2001:660:4406:280:5:1:0:2",
+      "kavlan-11": "2001:660:4406:1a0:205:1:0:2",
+      "kavlan-12": "2001:660:4406:2a0:205:1:0:2",
+      "kavlan-13": "2001:660:4406:4a0:205:1:0:2",
+      "kavlan-14": "2001:660:4406:5a0:205:1:0:2",
+      "kavlan-16": "2001:660:4406:7a0:205:1:0:2",
+      "kavlan-18": "2001:660:4406:8a0:205:1:0:2",
+      "kavlan-2": "2001:660:4406:281:5:1:0:2",
+      "kavlan-20": "2001:660:4406:3a0:205:1:0:2",
+      "kavlan-21": "2001:660:4406:6a0:205:1:0:2",
+      "kavlan-3": "2001:660:4406:282:5:1:0:2",
+      "kavlan-4": "2001:660:4406:290:5:1:0:2",
+      "kavlan-5": "2001:660:4406:291:5:1:0:2",
+      "kavlan-6": "2001:660:4406:292:5:1:0:2",
+      "kavlan-7": "2001:660:4406:293:5:1:0:2",
+      "kavlan-8": "2001:660:4406:294:5:1:0:2",
+      "kavlan-9": "2001:660:4406:295:5:1:0:2"
     }
   },
   "main_memory": {
@@ -133,7 +133,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.2",
-      "ip6": "2001:660:4406:200:5:0::2",
+      "ip6": "2001:660:4406:200:5::2",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:69:d0",
       "management": false,
@@ -154,7 +154,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.102",
-      "ip6": "2001:660:4406:200:5:1::2",
+      "ip6": "2001:660:4406:200:5:1:0:2",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:69:d1",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-3.json b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-3.json
index 54f83e60a21b165b964cf74fa115a6c67a696c4e..db34d8eac1ba34025c9c5957ffc963dde99f5403 100644
--- a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-3.json
+++ b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-3.json
@@ -80,42 +80,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:5:0::3",
-      "kavlan-11": "2001:660:4406:1a0:205:0::3",
-      "kavlan-12": "2001:660:4406:2a0:205:0::3",
-      "kavlan-13": "2001:660:4406:4a0:205:0::3",
-      "kavlan-14": "2001:660:4406:5a0:205:0::3",
-      "kavlan-16": "2001:660:4406:7a0:205:0::3",
-      "kavlan-18": "2001:660:4406:8a0:205:0::3",
-      "kavlan-2": "2001:660:4406:281:5:0::3",
-      "kavlan-20": "2001:660:4406:3a0:205:0::3",
-      "kavlan-21": "2001:660:4406:6a0:205:0::3",
-      "kavlan-3": "2001:660:4406:282:5:0::3",
-      "kavlan-4": "2001:660:4406:290:5:0::3",
-      "kavlan-5": "2001:660:4406:291:5:0::3",
-      "kavlan-6": "2001:660:4406:292:5:0::3",
-      "kavlan-7": "2001:660:4406:293:5:0::3",
-      "kavlan-8": "2001:660:4406:294:5:0::3",
-      "kavlan-9": "2001:660:4406:295:5:0::3"
+      "kavlan-1": "2001:660:4406:280:5::3",
+      "kavlan-11": "2001:660:4406:1a0:205::3",
+      "kavlan-12": "2001:660:4406:2a0:205::3",
+      "kavlan-13": "2001:660:4406:4a0:205::3",
+      "kavlan-14": "2001:660:4406:5a0:205::3",
+      "kavlan-16": "2001:660:4406:7a0:205::3",
+      "kavlan-18": "2001:660:4406:8a0:205::3",
+      "kavlan-2": "2001:660:4406:281:5::3",
+      "kavlan-20": "2001:660:4406:3a0:205::3",
+      "kavlan-21": "2001:660:4406:6a0:205::3",
+      "kavlan-3": "2001:660:4406:282:5::3",
+      "kavlan-4": "2001:660:4406:290:5::3",
+      "kavlan-5": "2001:660:4406:291:5::3",
+      "kavlan-6": "2001:660:4406:292:5::3",
+      "kavlan-7": "2001:660:4406:293:5::3",
+      "kavlan-8": "2001:660:4406:294:5::3",
+      "kavlan-9": "2001:660:4406:295:5::3"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:5:1::3",
-      "kavlan-11": "2001:660:4406:1a0:205:1::3",
-      "kavlan-12": "2001:660:4406:2a0:205:1::3",
-      "kavlan-13": "2001:660:4406:4a0:205:1::3",
-      "kavlan-14": "2001:660:4406:5a0:205:1::3",
-      "kavlan-16": "2001:660:4406:7a0:205:1::3",
-      "kavlan-18": "2001:660:4406:8a0:205:1::3",
-      "kavlan-2": "2001:660:4406:281:5:1::3",
-      "kavlan-20": "2001:660:4406:3a0:205:1::3",
-      "kavlan-21": "2001:660:4406:6a0:205:1::3",
-      "kavlan-3": "2001:660:4406:282:5:1::3",
-      "kavlan-4": "2001:660:4406:290:5:1::3",
-      "kavlan-5": "2001:660:4406:291:5:1::3",
-      "kavlan-6": "2001:660:4406:292:5:1::3",
-      "kavlan-7": "2001:660:4406:293:5:1::3",
-      "kavlan-8": "2001:660:4406:294:5:1::3",
-      "kavlan-9": "2001:660:4406:295:5:1::3"
+      "kavlan-1": "2001:660:4406:280:5:1:0:3",
+      "kavlan-11": "2001:660:4406:1a0:205:1:0:3",
+      "kavlan-12": "2001:660:4406:2a0:205:1:0:3",
+      "kavlan-13": "2001:660:4406:4a0:205:1:0:3",
+      "kavlan-14": "2001:660:4406:5a0:205:1:0:3",
+      "kavlan-16": "2001:660:4406:7a0:205:1:0:3",
+      "kavlan-18": "2001:660:4406:8a0:205:1:0:3",
+      "kavlan-2": "2001:660:4406:281:5:1:0:3",
+      "kavlan-20": "2001:660:4406:3a0:205:1:0:3",
+      "kavlan-21": "2001:660:4406:6a0:205:1:0:3",
+      "kavlan-3": "2001:660:4406:282:5:1:0:3",
+      "kavlan-4": "2001:660:4406:290:5:1:0:3",
+      "kavlan-5": "2001:660:4406:291:5:1:0:3",
+      "kavlan-6": "2001:660:4406:292:5:1:0:3",
+      "kavlan-7": "2001:660:4406:293:5:1:0:3",
+      "kavlan-8": "2001:660:4406:294:5:1:0:3",
+      "kavlan-9": "2001:660:4406:295:5:1:0:3"
     }
   },
   "main_memory": {
@@ -133,7 +133,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.3",
-      "ip6": "2001:660:4406:200:5:0::3",
+      "ip6": "2001:660:4406:200:5::3",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:63:f0",
       "management": false,
@@ -154,7 +154,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.103",
-      "ip6": "2001:660:4406:200:5:1::3",
+      "ip6": "2001:660:4406:200:5:1:0:3",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:63:f1",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-4.json b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-4.json
index d06f3b9a641972412cc855fff37fbbc4f60d30d8..7e63dd977bcf36fecea9aed7b9b7c4c7c4908afa 100644
--- a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-4.json
+++ b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-4.json
@@ -80,42 +80,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:5:0::4",
-      "kavlan-11": "2001:660:4406:1a0:205:0::4",
-      "kavlan-12": "2001:660:4406:2a0:205:0::4",
-      "kavlan-13": "2001:660:4406:4a0:205:0::4",
-      "kavlan-14": "2001:660:4406:5a0:205:0::4",
-      "kavlan-16": "2001:660:4406:7a0:205:0::4",
-      "kavlan-18": "2001:660:4406:8a0:205:0::4",
-      "kavlan-2": "2001:660:4406:281:5:0::4",
-      "kavlan-20": "2001:660:4406:3a0:205:0::4",
-      "kavlan-21": "2001:660:4406:6a0:205:0::4",
-      "kavlan-3": "2001:660:4406:282:5:0::4",
-      "kavlan-4": "2001:660:4406:290:5:0::4",
-      "kavlan-5": "2001:660:4406:291:5:0::4",
-      "kavlan-6": "2001:660:4406:292:5:0::4",
-      "kavlan-7": "2001:660:4406:293:5:0::4",
-      "kavlan-8": "2001:660:4406:294:5:0::4",
-      "kavlan-9": "2001:660:4406:295:5:0::4"
+      "kavlan-1": "2001:660:4406:280:5::4",
+      "kavlan-11": "2001:660:4406:1a0:205::4",
+      "kavlan-12": "2001:660:4406:2a0:205::4",
+      "kavlan-13": "2001:660:4406:4a0:205::4",
+      "kavlan-14": "2001:660:4406:5a0:205::4",
+      "kavlan-16": "2001:660:4406:7a0:205::4",
+      "kavlan-18": "2001:660:4406:8a0:205::4",
+      "kavlan-2": "2001:660:4406:281:5::4",
+      "kavlan-20": "2001:660:4406:3a0:205::4",
+      "kavlan-21": "2001:660:4406:6a0:205::4",
+      "kavlan-3": "2001:660:4406:282:5::4",
+      "kavlan-4": "2001:660:4406:290:5::4",
+      "kavlan-5": "2001:660:4406:291:5::4",
+      "kavlan-6": "2001:660:4406:292:5::4",
+      "kavlan-7": "2001:660:4406:293:5::4",
+      "kavlan-8": "2001:660:4406:294:5::4",
+      "kavlan-9": "2001:660:4406:295:5::4"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:5:1::4",
-      "kavlan-11": "2001:660:4406:1a0:205:1::4",
-      "kavlan-12": "2001:660:4406:2a0:205:1::4",
-      "kavlan-13": "2001:660:4406:4a0:205:1::4",
-      "kavlan-14": "2001:660:4406:5a0:205:1::4",
-      "kavlan-16": "2001:660:4406:7a0:205:1::4",
-      "kavlan-18": "2001:660:4406:8a0:205:1::4",
-      "kavlan-2": "2001:660:4406:281:5:1::4",
-      "kavlan-20": "2001:660:4406:3a0:205:1::4",
-      "kavlan-21": "2001:660:4406:6a0:205:1::4",
-      "kavlan-3": "2001:660:4406:282:5:1::4",
-      "kavlan-4": "2001:660:4406:290:5:1::4",
-      "kavlan-5": "2001:660:4406:291:5:1::4",
-      "kavlan-6": "2001:660:4406:292:5:1::4",
-      "kavlan-7": "2001:660:4406:293:5:1::4",
-      "kavlan-8": "2001:660:4406:294:5:1::4",
-      "kavlan-9": "2001:660:4406:295:5:1::4"
+      "kavlan-1": "2001:660:4406:280:5:1:0:4",
+      "kavlan-11": "2001:660:4406:1a0:205:1:0:4",
+      "kavlan-12": "2001:660:4406:2a0:205:1:0:4",
+      "kavlan-13": "2001:660:4406:4a0:205:1:0:4",
+      "kavlan-14": "2001:660:4406:5a0:205:1:0:4",
+      "kavlan-16": "2001:660:4406:7a0:205:1:0:4",
+      "kavlan-18": "2001:660:4406:8a0:205:1:0:4",
+      "kavlan-2": "2001:660:4406:281:5:1:0:4",
+      "kavlan-20": "2001:660:4406:3a0:205:1:0:4",
+      "kavlan-21": "2001:660:4406:6a0:205:1:0:4",
+      "kavlan-3": "2001:660:4406:282:5:1:0:4",
+      "kavlan-4": "2001:660:4406:290:5:1:0:4",
+      "kavlan-5": "2001:660:4406:291:5:1:0:4",
+      "kavlan-6": "2001:660:4406:292:5:1:0:4",
+      "kavlan-7": "2001:660:4406:293:5:1:0:4",
+      "kavlan-8": "2001:660:4406:294:5:1:0:4",
+      "kavlan-9": "2001:660:4406:295:5:1:0:4"
     }
   },
   "main_memory": {
@@ -133,7 +133,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.4",
-      "ip6": "2001:660:4406:200:5:0::4",
+      "ip6": "2001:660:4406:200:5::4",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:60:10",
       "management": false,
@@ -154,7 +154,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.104",
-      "ip6": "2001:660:4406:200:5:1::4",
+      "ip6": "2001:660:4406:200:5:1:0:4",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:60:11",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-5.json b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-5.json
index e4a3016867535d5fe27f5c458d7879d333427e42..f53a528cee3a867a01f0f435784e9a4b9de38a66 100644
--- a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-5.json
+++ b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-5.json
@@ -80,42 +80,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:5:0::5",
-      "kavlan-11": "2001:660:4406:1a0:205:0::5",
-      "kavlan-12": "2001:660:4406:2a0:205:0::5",
-      "kavlan-13": "2001:660:4406:4a0:205:0::5",
-      "kavlan-14": "2001:660:4406:5a0:205:0::5",
-      "kavlan-16": "2001:660:4406:7a0:205:0::5",
-      "kavlan-18": "2001:660:4406:8a0:205:0::5",
-      "kavlan-2": "2001:660:4406:281:5:0::5",
-      "kavlan-20": "2001:660:4406:3a0:205:0::5",
-      "kavlan-21": "2001:660:4406:6a0:205:0::5",
-      "kavlan-3": "2001:660:4406:282:5:0::5",
-      "kavlan-4": "2001:660:4406:290:5:0::5",
-      "kavlan-5": "2001:660:4406:291:5:0::5",
-      "kavlan-6": "2001:660:4406:292:5:0::5",
-      "kavlan-7": "2001:660:4406:293:5:0::5",
-      "kavlan-8": "2001:660:4406:294:5:0::5",
-      "kavlan-9": "2001:660:4406:295:5:0::5"
+      "kavlan-1": "2001:660:4406:280:5::5",
+      "kavlan-11": "2001:660:4406:1a0:205::5",
+      "kavlan-12": "2001:660:4406:2a0:205::5",
+      "kavlan-13": "2001:660:4406:4a0:205::5",
+      "kavlan-14": "2001:660:4406:5a0:205::5",
+      "kavlan-16": "2001:660:4406:7a0:205::5",
+      "kavlan-18": "2001:660:4406:8a0:205::5",
+      "kavlan-2": "2001:660:4406:281:5::5",
+      "kavlan-20": "2001:660:4406:3a0:205::5",
+      "kavlan-21": "2001:660:4406:6a0:205::5",
+      "kavlan-3": "2001:660:4406:282:5::5",
+      "kavlan-4": "2001:660:4406:290:5::5",
+      "kavlan-5": "2001:660:4406:291:5::5",
+      "kavlan-6": "2001:660:4406:292:5::5",
+      "kavlan-7": "2001:660:4406:293:5::5",
+      "kavlan-8": "2001:660:4406:294:5::5",
+      "kavlan-9": "2001:660:4406:295:5::5"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:5:1::5",
-      "kavlan-11": "2001:660:4406:1a0:205:1::5",
-      "kavlan-12": "2001:660:4406:2a0:205:1::5",
-      "kavlan-13": "2001:660:4406:4a0:205:1::5",
-      "kavlan-14": "2001:660:4406:5a0:205:1::5",
-      "kavlan-16": "2001:660:4406:7a0:205:1::5",
-      "kavlan-18": "2001:660:4406:8a0:205:1::5",
-      "kavlan-2": "2001:660:4406:281:5:1::5",
-      "kavlan-20": "2001:660:4406:3a0:205:1::5",
-      "kavlan-21": "2001:660:4406:6a0:205:1::5",
-      "kavlan-3": "2001:660:4406:282:5:1::5",
-      "kavlan-4": "2001:660:4406:290:5:1::5",
-      "kavlan-5": "2001:660:4406:291:5:1::5",
-      "kavlan-6": "2001:660:4406:292:5:1::5",
-      "kavlan-7": "2001:660:4406:293:5:1::5",
-      "kavlan-8": "2001:660:4406:294:5:1::5",
-      "kavlan-9": "2001:660:4406:295:5:1::5"
+      "kavlan-1": "2001:660:4406:280:5:1:0:5",
+      "kavlan-11": "2001:660:4406:1a0:205:1:0:5",
+      "kavlan-12": "2001:660:4406:2a0:205:1:0:5",
+      "kavlan-13": "2001:660:4406:4a0:205:1:0:5",
+      "kavlan-14": "2001:660:4406:5a0:205:1:0:5",
+      "kavlan-16": "2001:660:4406:7a0:205:1:0:5",
+      "kavlan-18": "2001:660:4406:8a0:205:1:0:5",
+      "kavlan-2": "2001:660:4406:281:5:1:0:5",
+      "kavlan-20": "2001:660:4406:3a0:205:1:0:5",
+      "kavlan-21": "2001:660:4406:6a0:205:1:0:5",
+      "kavlan-3": "2001:660:4406:282:5:1:0:5",
+      "kavlan-4": "2001:660:4406:290:5:1:0:5",
+      "kavlan-5": "2001:660:4406:291:5:1:0:5",
+      "kavlan-6": "2001:660:4406:292:5:1:0:5",
+      "kavlan-7": "2001:660:4406:293:5:1:0:5",
+      "kavlan-8": "2001:660:4406:294:5:1:0:5",
+      "kavlan-9": "2001:660:4406:295:5:1:0:5"
     }
   },
   "main_memory": {
@@ -133,7 +133,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.5",
-      "ip6": "2001:660:4406:200:5:0::5",
+      "ip6": "2001:660:4406:200:5::5",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:5f:50",
       "management": false,
@@ -154,7 +154,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.105",
-      "ip6": "2001:660:4406:200:5:1::5",
+      "ip6": "2001:660:4406:200:5:1:0:5",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:5f:51",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-6.json b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-6.json
index cc2ab925da32281c0f01c3da8c7c76ab8723c4ae..d778d7d796b9e42245a605c30bd6ce8d5282d61d 100644
--- a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-6.json
+++ b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-6.json
@@ -80,42 +80,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:5:0::6",
-      "kavlan-11": "2001:660:4406:1a0:205:0::6",
-      "kavlan-12": "2001:660:4406:2a0:205:0::6",
-      "kavlan-13": "2001:660:4406:4a0:205:0::6",
-      "kavlan-14": "2001:660:4406:5a0:205:0::6",
-      "kavlan-16": "2001:660:4406:7a0:205:0::6",
-      "kavlan-18": "2001:660:4406:8a0:205:0::6",
-      "kavlan-2": "2001:660:4406:281:5:0::6",
-      "kavlan-20": "2001:660:4406:3a0:205:0::6",
-      "kavlan-21": "2001:660:4406:6a0:205:0::6",
-      "kavlan-3": "2001:660:4406:282:5:0::6",
-      "kavlan-4": "2001:660:4406:290:5:0::6",
-      "kavlan-5": "2001:660:4406:291:5:0::6",
-      "kavlan-6": "2001:660:4406:292:5:0::6",
-      "kavlan-7": "2001:660:4406:293:5:0::6",
-      "kavlan-8": "2001:660:4406:294:5:0::6",
-      "kavlan-9": "2001:660:4406:295:5:0::6"
+      "kavlan-1": "2001:660:4406:280:5::6",
+      "kavlan-11": "2001:660:4406:1a0:205::6",
+      "kavlan-12": "2001:660:4406:2a0:205::6",
+      "kavlan-13": "2001:660:4406:4a0:205::6",
+      "kavlan-14": "2001:660:4406:5a0:205::6",
+      "kavlan-16": "2001:660:4406:7a0:205::6",
+      "kavlan-18": "2001:660:4406:8a0:205::6",
+      "kavlan-2": "2001:660:4406:281:5::6",
+      "kavlan-20": "2001:660:4406:3a0:205::6",
+      "kavlan-21": "2001:660:4406:6a0:205::6",
+      "kavlan-3": "2001:660:4406:282:5::6",
+      "kavlan-4": "2001:660:4406:290:5::6",
+      "kavlan-5": "2001:660:4406:291:5::6",
+      "kavlan-6": "2001:660:4406:292:5::6",
+      "kavlan-7": "2001:660:4406:293:5::6",
+      "kavlan-8": "2001:660:4406:294:5::6",
+      "kavlan-9": "2001:660:4406:295:5::6"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:5:1::6",
-      "kavlan-11": "2001:660:4406:1a0:205:1::6",
-      "kavlan-12": "2001:660:4406:2a0:205:1::6",
-      "kavlan-13": "2001:660:4406:4a0:205:1::6",
-      "kavlan-14": "2001:660:4406:5a0:205:1::6",
-      "kavlan-16": "2001:660:4406:7a0:205:1::6",
-      "kavlan-18": "2001:660:4406:8a0:205:1::6",
-      "kavlan-2": "2001:660:4406:281:5:1::6",
-      "kavlan-20": "2001:660:4406:3a0:205:1::6",
-      "kavlan-21": "2001:660:4406:6a0:205:1::6",
-      "kavlan-3": "2001:660:4406:282:5:1::6",
-      "kavlan-4": "2001:660:4406:290:5:1::6",
-      "kavlan-5": "2001:660:4406:291:5:1::6",
-      "kavlan-6": "2001:660:4406:292:5:1::6",
-      "kavlan-7": "2001:660:4406:293:5:1::6",
-      "kavlan-8": "2001:660:4406:294:5:1::6",
-      "kavlan-9": "2001:660:4406:295:5:1::6"
+      "kavlan-1": "2001:660:4406:280:5:1:0:6",
+      "kavlan-11": "2001:660:4406:1a0:205:1:0:6",
+      "kavlan-12": "2001:660:4406:2a0:205:1:0:6",
+      "kavlan-13": "2001:660:4406:4a0:205:1:0:6",
+      "kavlan-14": "2001:660:4406:5a0:205:1:0:6",
+      "kavlan-16": "2001:660:4406:7a0:205:1:0:6",
+      "kavlan-18": "2001:660:4406:8a0:205:1:0:6",
+      "kavlan-2": "2001:660:4406:281:5:1:0:6",
+      "kavlan-20": "2001:660:4406:3a0:205:1:0:6",
+      "kavlan-21": "2001:660:4406:6a0:205:1:0:6",
+      "kavlan-3": "2001:660:4406:282:5:1:0:6",
+      "kavlan-4": "2001:660:4406:290:5:1:0:6",
+      "kavlan-5": "2001:660:4406:291:5:1:0:6",
+      "kavlan-6": "2001:660:4406:292:5:1:0:6",
+      "kavlan-7": "2001:660:4406:293:5:1:0:6",
+      "kavlan-8": "2001:660:4406:294:5:1:0:6",
+      "kavlan-9": "2001:660:4406:295:5:1:0:6"
     }
   },
   "main_memory": {
@@ -133,7 +133,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.6",
-      "ip6": "2001:660:4406:200:5:0::6",
+      "ip6": "2001:660:4406:200:5::6",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:65:a0",
       "management": false,
@@ -154,7 +154,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.106",
-      "ip6": "2001:660:4406:200:5:1::6",
+      "ip6": "2001:660:4406:200:5:1:0:6",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:65:a1",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-7.json b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-7.json
index 902521a6630f9c097baf70f7aab8d7011d3879d7..a2a3960566019ec7960527133fc13eedc8287097 100644
--- a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-7.json
+++ b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-7.json
@@ -80,42 +80,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:5:0::7",
-      "kavlan-11": "2001:660:4406:1a0:205:0::7",
-      "kavlan-12": "2001:660:4406:2a0:205:0::7",
-      "kavlan-13": "2001:660:4406:4a0:205:0::7",
-      "kavlan-14": "2001:660:4406:5a0:205:0::7",
-      "kavlan-16": "2001:660:4406:7a0:205:0::7",
-      "kavlan-18": "2001:660:4406:8a0:205:0::7",
-      "kavlan-2": "2001:660:4406:281:5:0::7",
-      "kavlan-20": "2001:660:4406:3a0:205:0::7",
-      "kavlan-21": "2001:660:4406:6a0:205:0::7",
-      "kavlan-3": "2001:660:4406:282:5:0::7",
-      "kavlan-4": "2001:660:4406:290:5:0::7",
-      "kavlan-5": "2001:660:4406:291:5:0::7",
-      "kavlan-6": "2001:660:4406:292:5:0::7",
-      "kavlan-7": "2001:660:4406:293:5:0::7",
-      "kavlan-8": "2001:660:4406:294:5:0::7",
-      "kavlan-9": "2001:660:4406:295:5:0::7"
+      "kavlan-1": "2001:660:4406:280:5::7",
+      "kavlan-11": "2001:660:4406:1a0:205::7",
+      "kavlan-12": "2001:660:4406:2a0:205::7",
+      "kavlan-13": "2001:660:4406:4a0:205::7",
+      "kavlan-14": "2001:660:4406:5a0:205::7",
+      "kavlan-16": "2001:660:4406:7a0:205::7",
+      "kavlan-18": "2001:660:4406:8a0:205::7",
+      "kavlan-2": "2001:660:4406:281:5::7",
+      "kavlan-20": "2001:660:4406:3a0:205::7",
+      "kavlan-21": "2001:660:4406:6a0:205::7",
+      "kavlan-3": "2001:660:4406:282:5::7",
+      "kavlan-4": "2001:660:4406:290:5::7",
+      "kavlan-5": "2001:660:4406:291:5::7",
+      "kavlan-6": "2001:660:4406:292:5::7",
+      "kavlan-7": "2001:660:4406:293:5::7",
+      "kavlan-8": "2001:660:4406:294:5::7",
+      "kavlan-9": "2001:660:4406:295:5::7"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:5:1::7",
-      "kavlan-11": "2001:660:4406:1a0:205:1::7",
-      "kavlan-12": "2001:660:4406:2a0:205:1::7",
-      "kavlan-13": "2001:660:4406:4a0:205:1::7",
-      "kavlan-14": "2001:660:4406:5a0:205:1::7",
-      "kavlan-16": "2001:660:4406:7a0:205:1::7",
-      "kavlan-18": "2001:660:4406:8a0:205:1::7",
-      "kavlan-2": "2001:660:4406:281:5:1::7",
-      "kavlan-20": "2001:660:4406:3a0:205:1::7",
-      "kavlan-21": "2001:660:4406:6a0:205:1::7",
-      "kavlan-3": "2001:660:4406:282:5:1::7",
-      "kavlan-4": "2001:660:4406:290:5:1::7",
-      "kavlan-5": "2001:660:4406:291:5:1::7",
-      "kavlan-6": "2001:660:4406:292:5:1::7",
-      "kavlan-7": "2001:660:4406:293:5:1::7",
-      "kavlan-8": "2001:660:4406:294:5:1::7",
-      "kavlan-9": "2001:660:4406:295:5:1::7"
+      "kavlan-1": "2001:660:4406:280:5:1:0:7",
+      "kavlan-11": "2001:660:4406:1a0:205:1:0:7",
+      "kavlan-12": "2001:660:4406:2a0:205:1:0:7",
+      "kavlan-13": "2001:660:4406:4a0:205:1:0:7",
+      "kavlan-14": "2001:660:4406:5a0:205:1:0:7",
+      "kavlan-16": "2001:660:4406:7a0:205:1:0:7",
+      "kavlan-18": "2001:660:4406:8a0:205:1:0:7",
+      "kavlan-2": "2001:660:4406:281:5:1:0:7",
+      "kavlan-20": "2001:660:4406:3a0:205:1:0:7",
+      "kavlan-21": "2001:660:4406:6a0:205:1:0:7",
+      "kavlan-3": "2001:660:4406:282:5:1:0:7",
+      "kavlan-4": "2001:660:4406:290:5:1:0:7",
+      "kavlan-5": "2001:660:4406:291:5:1:0:7",
+      "kavlan-6": "2001:660:4406:292:5:1:0:7",
+      "kavlan-7": "2001:660:4406:293:5:1:0:7",
+      "kavlan-8": "2001:660:4406:294:5:1:0:7",
+      "kavlan-9": "2001:660:4406:295:5:1:0:7"
     }
   },
   "main_memory": {
@@ -133,7 +133,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.7",
-      "ip6": "2001:660:4406:200:5:0::7",
+      "ip6": "2001:660:4406:200:5::7",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:70:90",
       "management": false,
@@ -154,7 +154,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.107",
-      "ip6": "2001:660:4406:200:5:1::7",
+      "ip6": "2001:660:4406:200:5:1:0:7",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:70:91",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-8.json b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-8.json
index 6b7b5e1bcc0e5940da2978b5f98c44fe1c60e536..eb006760cbddba49456c441b45a3e1b425fb7812 100644
--- a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-8.json
+++ b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-8.json
@@ -80,42 +80,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:5:0::8",
-      "kavlan-11": "2001:660:4406:1a0:205:0::8",
-      "kavlan-12": "2001:660:4406:2a0:205:0::8",
-      "kavlan-13": "2001:660:4406:4a0:205:0::8",
-      "kavlan-14": "2001:660:4406:5a0:205:0::8",
-      "kavlan-16": "2001:660:4406:7a0:205:0::8",
-      "kavlan-18": "2001:660:4406:8a0:205:0::8",
-      "kavlan-2": "2001:660:4406:281:5:0::8",
-      "kavlan-20": "2001:660:4406:3a0:205:0::8",
-      "kavlan-21": "2001:660:4406:6a0:205:0::8",
-      "kavlan-3": "2001:660:4406:282:5:0::8",
-      "kavlan-4": "2001:660:4406:290:5:0::8",
-      "kavlan-5": "2001:660:4406:291:5:0::8",
-      "kavlan-6": "2001:660:4406:292:5:0::8",
-      "kavlan-7": "2001:660:4406:293:5:0::8",
-      "kavlan-8": "2001:660:4406:294:5:0::8",
-      "kavlan-9": "2001:660:4406:295:5:0::8"
+      "kavlan-1": "2001:660:4406:280:5::8",
+      "kavlan-11": "2001:660:4406:1a0:205::8",
+      "kavlan-12": "2001:660:4406:2a0:205::8",
+      "kavlan-13": "2001:660:4406:4a0:205::8",
+      "kavlan-14": "2001:660:4406:5a0:205::8",
+      "kavlan-16": "2001:660:4406:7a0:205::8",
+      "kavlan-18": "2001:660:4406:8a0:205::8",
+      "kavlan-2": "2001:660:4406:281:5::8",
+      "kavlan-20": "2001:660:4406:3a0:205::8",
+      "kavlan-21": "2001:660:4406:6a0:205::8",
+      "kavlan-3": "2001:660:4406:282:5::8",
+      "kavlan-4": "2001:660:4406:290:5::8",
+      "kavlan-5": "2001:660:4406:291:5::8",
+      "kavlan-6": "2001:660:4406:292:5::8",
+      "kavlan-7": "2001:660:4406:293:5::8",
+      "kavlan-8": "2001:660:4406:294:5::8",
+      "kavlan-9": "2001:660:4406:295:5::8"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:280:5:1::8",
-      "kavlan-11": "2001:660:4406:1a0:205:1::8",
-      "kavlan-12": "2001:660:4406:2a0:205:1::8",
-      "kavlan-13": "2001:660:4406:4a0:205:1::8",
-      "kavlan-14": "2001:660:4406:5a0:205:1::8",
-      "kavlan-16": "2001:660:4406:7a0:205:1::8",
-      "kavlan-18": "2001:660:4406:8a0:205:1::8",
-      "kavlan-2": "2001:660:4406:281:5:1::8",
-      "kavlan-20": "2001:660:4406:3a0:205:1::8",
-      "kavlan-21": "2001:660:4406:6a0:205:1::8",
-      "kavlan-3": "2001:660:4406:282:5:1::8",
-      "kavlan-4": "2001:660:4406:290:5:1::8",
-      "kavlan-5": "2001:660:4406:291:5:1::8",
-      "kavlan-6": "2001:660:4406:292:5:1::8",
-      "kavlan-7": "2001:660:4406:293:5:1::8",
-      "kavlan-8": "2001:660:4406:294:5:1::8",
-      "kavlan-9": "2001:660:4406:295:5:1::8"
+      "kavlan-1": "2001:660:4406:280:5:1:0:8",
+      "kavlan-11": "2001:660:4406:1a0:205:1:0:8",
+      "kavlan-12": "2001:660:4406:2a0:205:1:0:8",
+      "kavlan-13": "2001:660:4406:4a0:205:1:0:8",
+      "kavlan-14": "2001:660:4406:5a0:205:1:0:8",
+      "kavlan-16": "2001:660:4406:7a0:205:1:0:8",
+      "kavlan-18": "2001:660:4406:8a0:205:1:0:8",
+      "kavlan-2": "2001:660:4406:281:5:1:0:8",
+      "kavlan-20": "2001:660:4406:3a0:205:1:0:8",
+      "kavlan-21": "2001:660:4406:6a0:205:1:0:8",
+      "kavlan-3": "2001:660:4406:282:5:1:0:8",
+      "kavlan-4": "2001:660:4406:290:5:1:0:8",
+      "kavlan-5": "2001:660:4406:291:5:1:0:8",
+      "kavlan-6": "2001:660:4406:292:5:1:0:8",
+      "kavlan-7": "2001:660:4406:293:5:1:0:8",
+      "kavlan-8": "2001:660:4406:294:5:1:0:8",
+      "kavlan-9": "2001:660:4406:295:5:1:0:8"
     }
   },
   "main_memory": {
@@ -133,7 +133,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.8",
-      "ip6": "2001:660:4406:200:5:0::8",
+      "ip6": "2001:660:4406:200:5::8",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:64:20",
       "management": false,
@@ -154,7 +154,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.108",
-      "ip6": "2001:660:4406:200:5:1::8",
+      "ip6": "2001:660:4406:200:5:1:0:8",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:64:21",
       "management": false,
diff --git a/data/grid5000/sites/lille/lille.json b/data/grid5000/sites/lille/lille.json
index ee944a4e9c75803ef77aab9ee3ec463f3dd485d1..1fb079c6628e603481056f539b6cfcfcf30a87f7 100644
--- a/data/grid5000/sites/lille/lille.json
+++ b/data/grid5000/sites/lille/lille.json
@@ -8,7 +8,7 @@
     "network": "10.136.0.0/14"
   },
   "ipv6": {
-    "prefix": "2001:660:4406:02",
+    "prefix": "2001:660:4406:200::/56",
     "site_global_kavlan": 12,
     "site_index": 2
   },
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-1.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-1.json
index 567850f10d79e330de88c6eda1ae65462e3bf7d5..bbe8bafa8c98604097bbc204fbab16ad6fc58de6 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-1.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-1.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2:0::1",
-      "kavlan-11": "2001:660:4406:1a0:302:0::1",
-      "kavlan-12": "2001:660:4406:2a0:302:0::1",
-      "kavlan-13": "2001:660:4406:4a0:302:0::1",
-      "kavlan-14": "2001:660:4406:5a0:302:0::1",
-      "kavlan-16": "2001:660:4406:7a0:302:0::1",
-      "kavlan-18": "2001:660:4406:8a0:302:0::1",
-      "kavlan-2": "2001:660:4406:381:2:0::1",
-      "kavlan-20": "2001:660:4406:3a0:302:0::1",
-      "kavlan-21": "2001:660:4406:6a0:302:0::1",
-      "kavlan-3": "2001:660:4406:382:2:0::1",
-      "kavlan-4": "2001:660:4406:390:2:0::1",
-      "kavlan-5": "2001:660:4406:391:2:0::1",
-      "kavlan-6": "2001:660:4406:392:2:0::1",
-      "kavlan-7": "2001:660:4406:393:2:0::1",
-      "kavlan-8": "2001:660:4406:394:2:0::1",
-      "kavlan-9": "2001:660:4406:395:2:0::1"
+      "kavlan-1": "2001:660:4406:380:2::1",
+      "kavlan-11": "2001:660:4406:1a0:302::1",
+      "kavlan-12": "2001:660:4406:2a0:302::1",
+      "kavlan-13": "2001:660:4406:4a0:302::1",
+      "kavlan-14": "2001:660:4406:5a0:302::1",
+      "kavlan-16": "2001:660:4406:7a0:302::1",
+      "kavlan-18": "2001:660:4406:8a0:302::1",
+      "kavlan-2": "2001:660:4406:381:2::1",
+      "kavlan-20": "2001:660:4406:3a0:302::1",
+      "kavlan-21": "2001:660:4406:6a0:302::1",
+      "kavlan-3": "2001:660:4406:382:2::1",
+      "kavlan-4": "2001:660:4406:390:2::1",
+      "kavlan-5": "2001:660:4406:391:2::1",
+      "kavlan-6": "2001:660:4406:392:2::1",
+      "kavlan-7": "2001:660:4406:393:2::1",
+      "kavlan-8": "2001:660:4406:394:2::1",
+      "kavlan-9": "2001:660:4406:395:2::1"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:380:2:1::1",
-      "kavlan-11": "2001:660:4406:1a0:302:1::1",
-      "kavlan-12": "2001:660:4406:2a0:302:1::1",
-      "kavlan-13": "2001:660:4406:4a0:302:1::1",
-      "kavlan-14": "2001:660:4406:5a0:302:1::1",
-      "kavlan-16": "2001:660:4406:7a0:302:1::1",
-      "kavlan-18": "2001:660:4406:8a0:302:1::1",
-      "kavlan-2": "2001:660:4406:381:2:1::1",
-      "kavlan-20": "2001:660:4406:3a0:302:1::1",
-      "kavlan-21": "2001:660:4406:6a0:302:1::1",
-      "kavlan-3": "2001:660:4406:382:2:1::1",
-      "kavlan-4": "2001:660:4406:390:2:1::1",
-      "kavlan-5": "2001:660:4406:391:2:1::1",
-      "kavlan-6": "2001:660:4406:392:2:1::1",
-      "kavlan-7": "2001:660:4406:393:2:1::1",
-      "kavlan-8": "2001:660:4406:394:2:1::1",
-      "kavlan-9": "2001:660:4406:395:2:1::1"
+      "kavlan-1": "2001:660:4406:380:2:1:0:1",
+      "kavlan-11": "2001:660:4406:1a0:302:1:0:1",
+      "kavlan-12": "2001:660:4406:2a0:302:1:0:1",
+      "kavlan-13": "2001:660:4406:4a0:302:1:0:1",
+      "kavlan-14": "2001:660:4406:5a0:302:1:0:1",
+      "kavlan-16": "2001:660:4406:7a0:302:1:0:1",
+      "kavlan-18": "2001:660:4406:8a0:302:1:0:1",
+      "kavlan-2": "2001:660:4406:381:2:1:0:1",
+      "kavlan-20": "2001:660:4406:3a0:302:1:0:1",
+      "kavlan-21": "2001:660:4406:6a0:302:1:0:1",
+      "kavlan-3": "2001:660:4406:382:2:1:0:1",
+      "kavlan-4": "2001:660:4406:390:2:1:0:1",
+      "kavlan-5": "2001:660:4406:391:2:1:0:1",
+      "kavlan-6": "2001:660:4406:392:2:1:0:1",
+      "kavlan-7": "2001:660:4406:393:2:1:0:1",
+      "kavlan-8": "2001:660:4406:394:2:1:0:1",
+      "kavlan-9": "2001:660:4406:395:2:1:0:1"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.1",
-      "ip6": "2001:660:4406:300:2:0::1",
+      "ip6": "2001:660:4406:300:2::1",
       "kavlan": true,
       "mac": "e0:db:55:09:67:b0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.101",
-      "ip6": "2001:660:4406:300:2:1::1",
+      "ip6": "2001:660:4406:300:2:1:0:1",
       "kavlan": true,
       "mac": "e0:db:55:09:67:b2",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-10.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-10.json
index bd1583c22a188593775121a1cab5b879a9e1289a..bbbaabb346cd846b9755566f728cd02fc51c2e05 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-10.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-10.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2:0::a",
-      "kavlan-11": "2001:660:4406:1a0:302:0::a",
-      "kavlan-12": "2001:660:4406:2a0:302:0::a",
-      "kavlan-13": "2001:660:4406:4a0:302:0::a",
-      "kavlan-14": "2001:660:4406:5a0:302:0::a",
-      "kavlan-16": "2001:660:4406:7a0:302:0::a",
-      "kavlan-18": "2001:660:4406:8a0:302:0::a",
-      "kavlan-2": "2001:660:4406:381:2:0::a",
-      "kavlan-20": "2001:660:4406:3a0:302:0::a",
-      "kavlan-21": "2001:660:4406:6a0:302:0::a",
-      "kavlan-3": "2001:660:4406:382:2:0::a",
-      "kavlan-4": "2001:660:4406:390:2:0::a",
-      "kavlan-5": "2001:660:4406:391:2:0::a",
-      "kavlan-6": "2001:660:4406:392:2:0::a",
-      "kavlan-7": "2001:660:4406:393:2:0::a",
-      "kavlan-8": "2001:660:4406:394:2:0::a",
-      "kavlan-9": "2001:660:4406:395:2:0::a"
+      "kavlan-1": "2001:660:4406:380:2::a",
+      "kavlan-11": "2001:660:4406:1a0:302::a",
+      "kavlan-12": "2001:660:4406:2a0:302::a",
+      "kavlan-13": "2001:660:4406:4a0:302::a",
+      "kavlan-14": "2001:660:4406:5a0:302::a",
+      "kavlan-16": "2001:660:4406:7a0:302::a",
+      "kavlan-18": "2001:660:4406:8a0:302::a",
+      "kavlan-2": "2001:660:4406:381:2::a",
+      "kavlan-20": "2001:660:4406:3a0:302::a",
+      "kavlan-21": "2001:660:4406:6a0:302::a",
+      "kavlan-3": "2001:660:4406:382:2::a",
+      "kavlan-4": "2001:660:4406:390:2::a",
+      "kavlan-5": "2001:660:4406:391:2::a",
+      "kavlan-6": "2001:660:4406:392:2::a",
+      "kavlan-7": "2001:660:4406:393:2::a",
+      "kavlan-8": "2001:660:4406:394:2::a",
+      "kavlan-9": "2001:660:4406:395:2::a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:380:2:1::a",
-      "kavlan-11": "2001:660:4406:1a0:302:1::a",
-      "kavlan-12": "2001:660:4406:2a0:302:1::a",
-      "kavlan-13": "2001:660:4406:4a0:302:1::a",
-      "kavlan-14": "2001:660:4406:5a0:302:1::a",
-      "kavlan-16": "2001:660:4406:7a0:302:1::a",
-      "kavlan-18": "2001:660:4406:8a0:302:1::a",
-      "kavlan-2": "2001:660:4406:381:2:1::a",
-      "kavlan-20": "2001:660:4406:3a0:302:1::a",
-      "kavlan-21": "2001:660:4406:6a0:302:1::a",
-      "kavlan-3": "2001:660:4406:382:2:1::a",
-      "kavlan-4": "2001:660:4406:390:2:1::a",
-      "kavlan-5": "2001:660:4406:391:2:1::a",
-      "kavlan-6": "2001:660:4406:392:2:1::a",
-      "kavlan-7": "2001:660:4406:393:2:1::a",
-      "kavlan-8": "2001:660:4406:394:2:1::a",
-      "kavlan-9": "2001:660:4406:395:2:1::a"
+      "kavlan-1": "2001:660:4406:380:2:1:0:a",
+      "kavlan-11": "2001:660:4406:1a0:302:1:0:a",
+      "kavlan-12": "2001:660:4406:2a0:302:1:0:a",
+      "kavlan-13": "2001:660:4406:4a0:302:1:0:a",
+      "kavlan-14": "2001:660:4406:5a0:302:1:0:a",
+      "kavlan-16": "2001:660:4406:7a0:302:1:0:a",
+      "kavlan-18": "2001:660:4406:8a0:302:1:0:a",
+      "kavlan-2": "2001:660:4406:381:2:1:0:a",
+      "kavlan-20": "2001:660:4406:3a0:302:1:0:a",
+      "kavlan-21": "2001:660:4406:6a0:302:1:0:a",
+      "kavlan-3": "2001:660:4406:382:2:1:0:a",
+      "kavlan-4": "2001:660:4406:390:2:1:0:a",
+      "kavlan-5": "2001:660:4406:391:2:1:0:a",
+      "kavlan-6": "2001:660:4406:392:2:1:0:a",
+      "kavlan-7": "2001:660:4406:393:2:1:0:a",
+      "kavlan-8": "2001:660:4406:394:2:1:0:a",
+      "kavlan-9": "2001:660:4406:395:2:1:0:a"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.10",
-      "ip6": "2001:660:4406:300:2:0::a",
+      "ip6": "2001:660:4406:300:2::a",
       "kavlan": true,
       "mac": "e0:db:55:09:ac:90",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.110",
-      "ip6": "2001:660:4406:300:2:1::a",
+      "ip6": "2001:660:4406:300:2:1:0:a",
       "kavlan": true,
       "mac": "e0:db:55:09:ac:92",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-11.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-11.json
index 6d599a7e5865140cef80d3838d1936529b26472c..5c54c02d9c4d4e3d7bd3627611d62adcb07f49fb 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-11.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-11.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2:0::b",
-      "kavlan-11": "2001:660:4406:1a0:302:0::b",
-      "kavlan-12": "2001:660:4406:2a0:302:0::b",
-      "kavlan-13": "2001:660:4406:4a0:302:0::b",
-      "kavlan-14": "2001:660:4406:5a0:302:0::b",
-      "kavlan-16": "2001:660:4406:7a0:302:0::b",
-      "kavlan-18": "2001:660:4406:8a0:302:0::b",
-      "kavlan-2": "2001:660:4406:381:2:0::b",
-      "kavlan-20": "2001:660:4406:3a0:302:0::b",
-      "kavlan-21": "2001:660:4406:6a0:302:0::b",
-      "kavlan-3": "2001:660:4406:382:2:0::b",
-      "kavlan-4": "2001:660:4406:390:2:0::b",
-      "kavlan-5": "2001:660:4406:391:2:0::b",
-      "kavlan-6": "2001:660:4406:392:2:0::b",
-      "kavlan-7": "2001:660:4406:393:2:0::b",
-      "kavlan-8": "2001:660:4406:394:2:0::b",
-      "kavlan-9": "2001:660:4406:395:2:0::b"
+      "kavlan-1": "2001:660:4406:380:2::b",
+      "kavlan-11": "2001:660:4406:1a0:302::b",
+      "kavlan-12": "2001:660:4406:2a0:302::b",
+      "kavlan-13": "2001:660:4406:4a0:302::b",
+      "kavlan-14": "2001:660:4406:5a0:302::b",
+      "kavlan-16": "2001:660:4406:7a0:302::b",
+      "kavlan-18": "2001:660:4406:8a0:302::b",
+      "kavlan-2": "2001:660:4406:381:2::b",
+      "kavlan-20": "2001:660:4406:3a0:302::b",
+      "kavlan-21": "2001:660:4406:6a0:302::b",
+      "kavlan-3": "2001:660:4406:382:2::b",
+      "kavlan-4": "2001:660:4406:390:2::b",
+      "kavlan-5": "2001:660:4406:391:2::b",
+      "kavlan-6": "2001:660:4406:392:2::b",
+      "kavlan-7": "2001:660:4406:393:2::b",
+      "kavlan-8": "2001:660:4406:394:2::b",
+      "kavlan-9": "2001:660:4406:395:2::b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:380:2:1::b",
-      "kavlan-11": "2001:660:4406:1a0:302:1::b",
-      "kavlan-12": "2001:660:4406:2a0:302:1::b",
-      "kavlan-13": "2001:660:4406:4a0:302:1::b",
-      "kavlan-14": "2001:660:4406:5a0:302:1::b",
-      "kavlan-16": "2001:660:4406:7a0:302:1::b",
-      "kavlan-18": "2001:660:4406:8a0:302:1::b",
-      "kavlan-2": "2001:660:4406:381:2:1::b",
-      "kavlan-20": "2001:660:4406:3a0:302:1::b",
-      "kavlan-21": "2001:660:4406:6a0:302:1::b",
-      "kavlan-3": "2001:660:4406:382:2:1::b",
-      "kavlan-4": "2001:660:4406:390:2:1::b",
-      "kavlan-5": "2001:660:4406:391:2:1::b",
-      "kavlan-6": "2001:660:4406:392:2:1::b",
-      "kavlan-7": "2001:660:4406:393:2:1::b",
-      "kavlan-8": "2001:660:4406:394:2:1::b",
-      "kavlan-9": "2001:660:4406:395:2:1::b"
+      "kavlan-1": "2001:660:4406:380:2:1:0:b",
+      "kavlan-11": "2001:660:4406:1a0:302:1:0:b",
+      "kavlan-12": "2001:660:4406:2a0:302:1:0:b",
+      "kavlan-13": "2001:660:4406:4a0:302:1:0:b",
+      "kavlan-14": "2001:660:4406:5a0:302:1:0:b",
+      "kavlan-16": "2001:660:4406:7a0:302:1:0:b",
+      "kavlan-18": "2001:660:4406:8a0:302:1:0:b",
+      "kavlan-2": "2001:660:4406:381:2:1:0:b",
+      "kavlan-20": "2001:660:4406:3a0:302:1:0:b",
+      "kavlan-21": "2001:660:4406:6a0:302:1:0:b",
+      "kavlan-3": "2001:660:4406:382:2:1:0:b",
+      "kavlan-4": "2001:660:4406:390:2:1:0:b",
+      "kavlan-5": "2001:660:4406:391:2:1:0:b",
+      "kavlan-6": "2001:660:4406:392:2:1:0:b",
+      "kavlan-7": "2001:660:4406:393:2:1:0:b",
+      "kavlan-8": "2001:660:4406:394:2:1:0:b",
+      "kavlan-9": "2001:660:4406:395:2:1:0:b"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.11",
-      "ip6": "2001:660:4406:300:2:0::b",
+      "ip6": "2001:660:4406:300:2::b",
       "kavlan": true,
       "mac": "e0:db:55:09:be:a0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.111",
-      "ip6": "2001:660:4406:300:2:1::b",
+      "ip6": "2001:660:4406:300:2:1:0:b",
       "kavlan": true,
       "mac": "e0:db:55:09:be:a2",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-13.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-13.json
index cc7d21ad075746be4c570561b7161649a4c9e0b5..5ae157ef66d190f71c6b05125320c4c83bf1b2c4 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-13.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-13.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2:0::d",
-      "kavlan-11": "2001:660:4406:1a0:302:0::d",
-      "kavlan-12": "2001:660:4406:2a0:302:0::d",
-      "kavlan-13": "2001:660:4406:4a0:302:0::d",
-      "kavlan-14": "2001:660:4406:5a0:302:0::d",
-      "kavlan-16": "2001:660:4406:7a0:302:0::d",
-      "kavlan-18": "2001:660:4406:8a0:302:0::d",
-      "kavlan-2": "2001:660:4406:381:2:0::d",
-      "kavlan-20": "2001:660:4406:3a0:302:0::d",
-      "kavlan-21": "2001:660:4406:6a0:302:0::d",
-      "kavlan-3": "2001:660:4406:382:2:0::d",
-      "kavlan-4": "2001:660:4406:390:2:0::d",
-      "kavlan-5": "2001:660:4406:391:2:0::d",
-      "kavlan-6": "2001:660:4406:392:2:0::d",
-      "kavlan-7": "2001:660:4406:393:2:0::d",
-      "kavlan-8": "2001:660:4406:394:2:0::d",
-      "kavlan-9": "2001:660:4406:395:2:0::d"
+      "kavlan-1": "2001:660:4406:380:2::d",
+      "kavlan-11": "2001:660:4406:1a0:302::d",
+      "kavlan-12": "2001:660:4406:2a0:302::d",
+      "kavlan-13": "2001:660:4406:4a0:302::d",
+      "kavlan-14": "2001:660:4406:5a0:302::d",
+      "kavlan-16": "2001:660:4406:7a0:302::d",
+      "kavlan-18": "2001:660:4406:8a0:302::d",
+      "kavlan-2": "2001:660:4406:381:2::d",
+      "kavlan-20": "2001:660:4406:3a0:302::d",
+      "kavlan-21": "2001:660:4406:6a0:302::d",
+      "kavlan-3": "2001:660:4406:382:2::d",
+      "kavlan-4": "2001:660:4406:390:2::d",
+      "kavlan-5": "2001:660:4406:391:2::d",
+      "kavlan-6": "2001:660:4406:392:2::d",
+      "kavlan-7": "2001:660:4406:393:2::d",
+      "kavlan-8": "2001:660:4406:394:2::d",
+      "kavlan-9": "2001:660:4406:395:2::d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:380:2:1::d",
-      "kavlan-11": "2001:660:4406:1a0:302:1::d",
-      "kavlan-12": "2001:660:4406:2a0:302:1::d",
-      "kavlan-13": "2001:660:4406:4a0:302:1::d",
-      "kavlan-14": "2001:660:4406:5a0:302:1::d",
-      "kavlan-16": "2001:660:4406:7a0:302:1::d",
-      "kavlan-18": "2001:660:4406:8a0:302:1::d",
-      "kavlan-2": "2001:660:4406:381:2:1::d",
-      "kavlan-20": "2001:660:4406:3a0:302:1::d",
-      "kavlan-21": "2001:660:4406:6a0:302:1::d",
-      "kavlan-3": "2001:660:4406:382:2:1::d",
-      "kavlan-4": "2001:660:4406:390:2:1::d",
-      "kavlan-5": "2001:660:4406:391:2:1::d",
-      "kavlan-6": "2001:660:4406:392:2:1::d",
-      "kavlan-7": "2001:660:4406:393:2:1::d",
-      "kavlan-8": "2001:660:4406:394:2:1::d",
-      "kavlan-9": "2001:660:4406:395:2:1::d"
+      "kavlan-1": "2001:660:4406:380:2:1:0:d",
+      "kavlan-11": "2001:660:4406:1a0:302:1:0:d",
+      "kavlan-12": "2001:660:4406:2a0:302:1:0:d",
+      "kavlan-13": "2001:660:4406:4a0:302:1:0:d",
+      "kavlan-14": "2001:660:4406:5a0:302:1:0:d",
+      "kavlan-16": "2001:660:4406:7a0:302:1:0:d",
+      "kavlan-18": "2001:660:4406:8a0:302:1:0:d",
+      "kavlan-2": "2001:660:4406:381:2:1:0:d",
+      "kavlan-20": "2001:660:4406:3a0:302:1:0:d",
+      "kavlan-21": "2001:660:4406:6a0:302:1:0:d",
+      "kavlan-3": "2001:660:4406:382:2:1:0:d",
+      "kavlan-4": "2001:660:4406:390:2:1:0:d",
+      "kavlan-5": "2001:660:4406:391:2:1:0:d",
+      "kavlan-6": "2001:660:4406:392:2:1:0:d",
+      "kavlan-7": "2001:660:4406:393:2:1:0:d",
+      "kavlan-8": "2001:660:4406:394:2:1:0:d",
+      "kavlan-9": "2001:660:4406:395:2:1:0:d"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.13",
-      "ip6": "2001:660:4406:300:2:0::d",
+      "ip6": "2001:660:4406:300:2::d",
       "kavlan": true,
       "mac": "e0:db:55:09:c3:b0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.113",
-      "ip6": "2001:660:4406:300:2:1::d",
+      "ip6": "2001:660:4406:300:2:1:0:d",
       "kavlan": true,
       "mac": "e0:db:55:09:c3:b2",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-14.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-14.json
index 01442d64db433fa4b351a24722d0380de42a31e8..06dd51f3d07639dd7641db5a4ded8a2110d66263 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-14.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-14.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2:0::e",
-      "kavlan-11": "2001:660:4406:1a0:302:0::e",
-      "kavlan-12": "2001:660:4406:2a0:302:0::e",
-      "kavlan-13": "2001:660:4406:4a0:302:0::e",
-      "kavlan-14": "2001:660:4406:5a0:302:0::e",
-      "kavlan-16": "2001:660:4406:7a0:302:0::e",
-      "kavlan-18": "2001:660:4406:8a0:302:0::e",
-      "kavlan-2": "2001:660:4406:381:2:0::e",
-      "kavlan-20": "2001:660:4406:3a0:302:0::e",
-      "kavlan-21": "2001:660:4406:6a0:302:0::e",
-      "kavlan-3": "2001:660:4406:382:2:0::e",
-      "kavlan-4": "2001:660:4406:390:2:0::e",
-      "kavlan-5": "2001:660:4406:391:2:0::e",
-      "kavlan-6": "2001:660:4406:392:2:0::e",
-      "kavlan-7": "2001:660:4406:393:2:0::e",
-      "kavlan-8": "2001:660:4406:394:2:0::e",
-      "kavlan-9": "2001:660:4406:395:2:0::e"
+      "kavlan-1": "2001:660:4406:380:2::e",
+      "kavlan-11": "2001:660:4406:1a0:302::e",
+      "kavlan-12": "2001:660:4406:2a0:302::e",
+      "kavlan-13": "2001:660:4406:4a0:302::e",
+      "kavlan-14": "2001:660:4406:5a0:302::e",
+      "kavlan-16": "2001:660:4406:7a0:302::e",
+      "kavlan-18": "2001:660:4406:8a0:302::e",
+      "kavlan-2": "2001:660:4406:381:2::e",
+      "kavlan-20": "2001:660:4406:3a0:302::e",
+      "kavlan-21": "2001:660:4406:6a0:302::e",
+      "kavlan-3": "2001:660:4406:382:2::e",
+      "kavlan-4": "2001:660:4406:390:2::e",
+      "kavlan-5": "2001:660:4406:391:2::e",
+      "kavlan-6": "2001:660:4406:392:2::e",
+      "kavlan-7": "2001:660:4406:393:2::e",
+      "kavlan-8": "2001:660:4406:394:2::e",
+      "kavlan-9": "2001:660:4406:395:2::e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:380:2:1::e",
-      "kavlan-11": "2001:660:4406:1a0:302:1::e",
-      "kavlan-12": "2001:660:4406:2a0:302:1::e",
-      "kavlan-13": "2001:660:4406:4a0:302:1::e",
-      "kavlan-14": "2001:660:4406:5a0:302:1::e",
-      "kavlan-16": "2001:660:4406:7a0:302:1::e",
-      "kavlan-18": "2001:660:4406:8a0:302:1::e",
-      "kavlan-2": "2001:660:4406:381:2:1::e",
-      "kavlan-20": "2001:660:4406:3a0:302:1::e",
-      "kavlan-21": "2001:660:4406:6a0:302:1::e",
-      "kavlan-3": "2001:660:4406:382:2:1::e",
-      "kavlan-4": "2001:660:4406:390:2:1::e",
-      "kavlan-5": "2001:660:4406:391:2:1::e",
-      "kavlan-6": "2001:660:4406:392:2:1::e",
-      "kavlan-7": "2001:660:4406:393:2:1::e",
-      "kavlan-8": "2001:660:4406:394:2:1::e",
-      "kavlan-9": "2001:660:4406:395:2:1::e"
+      "kavlan-1": "2001:660:4406:380:2:1:0:e",
+      "kavlan-11": "2001:660:4406:1a0:302:1:0:e",
+      "kavlan-12": "2001:660:4406:2a0:302:1:0:e",
+      "kavlan-13": "2001:660:4406:4a0:302:1:0:e",
+      "kavlan-14": "2001:660:4406:5a0:302:1:0:e",
+      "kavlan-16": "2001:660:4406:7a0:302:1:0:e",
+      "kavlan-18": "2001:660:4406:8a0:302:1:0:e",
+      "kavlan-2": "2001:660:4406:381:2:1:0:e",
+      "kavlan-20": "2001:660:4406:3a0:302:1:0:e",
+      "kavlan-21": "2001:660:4406:6a0:302:1:0:e",
+      "kavlan-3": "2001:660:4406:382:2:1:0:e",
+      "kavlan-4": "2001:660:4406:390:2:1:0:e",
+      "kavlan-5": "2001:660:4406:391:2:1:0:e",
+      "kavlan-6": "2001:660:4406:392:2:1:0:e",
+      "kavlan-7": "2001:660:4406:393:2:1:0:e",
+      "kavlan-8": "2001:660:4406:394:2:1:0:e",
+      "kavlan-9": "2001:660:4406:395:2:1:0:e"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.14",
-      "ip6": "2001:660:4406:300:2:0::e",
+      "ip6": "2001:660:4406:300:2::e",
       "kavlan": true,
       "mac": "e0:db:55:09:d1:20",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.114",
-      "ip6": "2001:660:4406:300:2:1::e",
+      "ip6": "2001:660:4406:300:2:1:0:e",
       "kavlan": true,
       "mac": "e0:db:55:09:d1:22",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-15.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-15.json
index 681b45b3b96c48a3a6ae81e23cb6e087f5800d1e..9c4bae7f6c156d63331cfdfc5f795a72dbf60e5e 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-15.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-15.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2:0::f",
-      "kavlan-11": "2001:660:4406:1a0:302:0::f",
-      "kavlan-12": "2001:660:4406:2a0:302:0::f",
-      "kavlan-13": "2001:660:4406:4a0:302:0::f",
-      "kavlan-14": "2001:660:4406:5a0:302:0::f",
-      "kavlan-16": "2001:660:4406:7a0:302:0::f",
-      "kavlan-18": "2001:660:4406:8a0:302:0::f",
-      "kavlan-2": "2001:660:4406:381:2:0::f",
-      "kavlan-20": "2001:660:4406:3a0:302:0::f",
-      "kavlan-21": "2001:660:4406:6a0:302:0::f",
-      "kavlan-3": "2001:660:4406:382:2:0::f",
-      "kavlan-4": "2001:660:4406:390:2:0::f",
-      "kavlan-5": "2001:660:4406:391:2:0::f",
-      "kavlan-6": "2001:660:4406:392:2:0::f",
-      "kavlan-7": "2001:660:4406:393:2:0::f",
-      "kavlan-8": "2001:660:4406:394:2:0::f",
-      "kavlan-9": "2001:660:4406:395:2:0::f"
+      "kavlan-1": "2001:660:4406:380:2::f",
+      "kavlan-11": "2001:660:4406:1a0:302::f",
+      "kavlan-12": "2001:660:4406:2a0:302::f",
+      "kavlan-13": "2001:660:4406:4a0:302::f",
+      "kavlan-14": "2001:660:4406:5a0:302::f",
+      "kavlan-16": "2001:660:4406:7a0:302::f",
+      "kavlan-18": "2001:660:4406:8a0:302::f",
+      "kavlan-2": "2001:660:4406:381:2::f",
+      "kavlan-20": "2001:660:4406:3a0:302::f",
+      "kavlan-21": "2001:660:4406:6a0:302::f",
+      "kavlan-3": "2001:660:4406:382:2::f",
+      "kavlan-4": "2001:660:4406:390:2::f",
+      "kavlan-5": "2001:660:4406:391:2::f",
+      "kavlan-6": "2001:660:4406:392:2::f",
+      "kavlan-7": "2001:660:4406:393:2::f",
+      "kavlan-8": "2001:660:4406:394:2::f",
+      "kavlan-9": "2001:660:4406:395:2::f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:380:2:1::f",
-      "kavlan-11": "2001:660:4406:1a0:302:1::f",
-      "kavlan-12": "2001:660:4406:2a0:302:1::f",
-      "kavlan-13": "2001:660:4406:4a0:302:1::f",
-      "kavlan-14": "2001:660:4406:5a0:302:1::f",
-      "kavlan-16": "2001:660:4406:7a0:302:1::f",
-      "kavlan-18": "2001:660:4406:8a0:302:1::f",
-      "kavlan-2": "2001:660:4406:381:2:1::f",
-      "kavlan-20": "2001:660:4406:3a0:302:1::f",
-      "kavlan-21": "2001:660:4406:6a0:302:1::f",
-      "kavlan-3": "2001:660:4406:382:2:1::f",
-      "kavlan-4": "2001:660:4406:390:2:1::f",
-      "kavlan-5": "2001:660:4406:391:2:1::f",
-      "kavlan-6": "2001:660:4406:392:2:1::f",
-      "kavlan-7": "2001:660:4406:393:2:1::f",
-      "kavlan-8": "2001:660:4406:394:2:1::f",
-      "kavlan-9": "2001:660:4406:395:2:1::f"
+      "kavlan-1": "2001:660:4406:380:2:1:0:f",
+      "kavlan-11": "2001:660:4406:1a0:302:1:0:f",
+      "kavlan-12": "2001:660:4406:2a0:302:1:0:f",
+      "kavlan-13": "2001:660:4406:4a0:302:1:0:f",
+      "kavlan-14": "2001:660:4406:5a0:302:1:0:f",
+      "kavlan-16": "2001:660:4406:7a0:302:1:0:f",
+      "kavlan-18": "2001:660:4406:8a0:302:1:0:f",
+      "kavlan-2": "2001:660:4406:381:2:1:0:f",
+      "kavlan-20": "2001:660:4406:3a0:302:1:0:f",
+      "kavlan-21": "2001:660:4406:6a0:302:1:0:f",
+      "kavlan-3": "2001:660:4406:382:2:1:0:f",
+      "kavlan-4": "2001:660:4406:390:2:1:0:f",
+      "kavlan-5": "2001:660:4406:391:2:1:0:f",
+      "kavlan-6": "2001:660:4406:392:2:1:0:f",
+      "kavlan-7": "2001:660:4406:393:2:1:0:f",
+      "kavlan-8": "2001:660:4406:394:2:1:0:f",
+      "kavlan-9": "2001:660:4406:395:2:1:0:f"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.15",
-      "ip6": "2001:660:4406:300:2:0::f",
+      "ip6": "2001:660:4406:300:2::f",
       "kavlan": true,
       "mac": "e0:db:55:09:85:d0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.115",
-      "ip6": "2001:660:4406:300:2:1::f",
+      "ip6": "2001:660:4406:300:2:1:0:f",
       "kavlan": true,
       "mac": "e0:db:55:09:85:d2",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-16.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-16.json
index 004b4ef65a61fe4937d2dc6d52ea1e317825c6a5..ca75ee72c9542a70bda074f9011f70d30bc8a920 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-16.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-16.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2:0::10",
-      "kavlan-11": "2001:660:4406:1a0:302:0::10",
-      "kavlan-12": "2001:660:4406:2a0:302:0::10",
-      "kavlan-13": "2001:660:4406:4a0:302:0::10",
-      "kavlan-14": "2001:660:4406:5a0:302:0::10",
-      "kavlan-16": "2001:660:4406:7a0:302:0::10",
-      "kavlan-18": "2001:660:4406:8a0:302:0::10",
-      "kavlan-2": "2001:660:4406:381:2:0::10",
-      "kavlan-20": "2001:660:4406:3a0:302:0::10",
-      "kavlan-21": "2001:660:4406:6a0:302:0::10",
-      "kavlan-3": "2001:660:4406:382:2:0::10",
-      "kavlan-4": "2001:660:4406:390:2:0::10",
-      "kavlan-5": "2001:660:4406:391:2:0::10",
-      "kavlan-6": "2001:660:4406:392:2:0::10",
-      "kavlan-7": "2001:660:4406:393:2:0::10",
-      "kavlan-8": "2001:660:4406:394:2:0::10",
-      "kavlan-9": "2001:660:4406:395:2:0::10"
+      "kavlan-1": "2001:660:4406:380:2::10",
+      "kavlan-11": "2001:660:4406:1a0:302::10",
+      "kavlan-12": "2001:660:4406:2a0:302::10",
+      "kavlan-13": "2001:660:4406:4a0:302::10",
+      "kavlan-14": "2001:660:4406:5a0:302::10",
+      "kavlan-16": "2001:660:4406:7a0:302::10",
+      "kavlan-18": "2001:660:4406:8a0:302::10",
+      "kavlan-2": "2001:660:4406:381:2::10",
+      "kavlan-20": "2001:660:4406:3a0:302::10",
+      "kavlan-21": "2001:660:4406:6a0:302::10",
+      "kavlan-3": "2001:660:4406:382:2::10",
+      "kavlan-4": "2001:660:4406:390:2::10",
+      "kavlan-5": "2001:660:4406:391:2::10",
+      "kavlan-6": "2001:660:4406:392:2::10",
+      "kavlan-7": "2001:660:4406:393:2::10",
+      "kavlan-8": "2001:660:4406:394:2::10",
+      "kavlan-9": "2001:660:4406:395:2::10"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:380:2:1::10",
-      "kavlan-11": "2001:660:4406:1a0:302:1::10",
-      "kavlan-12": "2001:660:4406:2a0:302:1::10",
-      "kavlan-13": "2001:660:4406:4a0:302:1::10",
-      "kavlan-14": "2001:660:4406:5a0:302:1::10",
-      "kavlan-16": "2001:660:4406:7a0:302:1::10",
-      "kavlan-18": "2001:660:4406:8a0:302:1::10",
-      "kavlan-2": "2001:660:4406:381:2:1::10",
-      "kavlan-20": "2001:660:4406:3a0:302:1::10",
-      "kavlan-21": "2001:660:4406:6a0:302:1::10",
-      "kavlan-3": "2001:660:4406:382:2:1::10",
-      "kavlan-4": "2001:660:4406:390:2:1::10",
-      "kavlan-5": "2001:660:4406:391:2:1::10",
-      "kavlan-6": "2001:660:4406:392:2:1::10",
-      "kavlan-7": "2001:660:4406:393:2:1::10",
-      "kavlan-8": "2001:660:4406:394:2:1::10",
-      "kavlan-9": "2001:660:4406:395:2:1::10"
+      "kavlan-1": "2001:660:4406:380:2:1:0:10",
+      "kavlan-11": "2001:660:4406:1a0:302:1:0:10",
+      "kavlan-12": "2001:660:4406:2a0:302:1:0:10",
+      "kavlan-13": "2001:660:4406:4a0:302:1:0:10",
+      "kavlan-14": "2001:660:4406:5a0:302:1:0:10",
+      "kavlan-16": "2001:660:4406:7a0:302:1:0:10",
+      "kavlan-18": "2001:660:4406:8a0:302:1:0:10",
+      "kavlan-2": "2001:660:4406:381:2:1:0:10",
+      "kavlan-20": "2001:660:4406:3a0:302:1:0:10",
+      "kavlan-21": "2001:660:4406:6a0:302:1:0:10",
+      "kavlan-3": "2001:660:4406:382:2:1:0:10",
+      "kavlan-4": "2001:660:4406:390:2:1:0:10",
+      "kavlan-5": "2001:660:4406:391:2:1:0:10",
+      "kavlan-6": "2001:660:4406:392:2:1:0:10",
+      "kavlan-7": "2001:660:4406:393:2:1:0:10",
+      "kavlan-8": "2001:660:4406:394:2:1:0:10",
+      "kavlan-9": "2001:660:4406:395:2:1:0:10"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.16",
-      "ip6": "2001:660:4406:300:2:0::10",
+      "ip6": "2001:660:4406:300:2::10",
       "kavlan": true,
       "mac": "e0:db:55:09:ef:a0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.116",
-      "ip6": "2001:660:4406:300:2:1::10",
+      "ip6": "2001:660:4406:300:2:1:0:10",
       "kavlan": true,
       "mac": "e0:db:55:09:ef:a2",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-2.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-2.json
index 6cc62d1789e35507771495c1a6dc3156259d54bd..676b5057a607f4d15b0455a0e895c578aca0d032 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-2.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-2.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2:0::2",
-      "kavlan-11": "2001:660:4406:1a0:302:0::2",
-      "kavlan-12": "2001:660:4406:2a0:302:0::2",
-      "kavlan-13": "2001:660:4406:4a0:302:0::2",
-      "kavlan-14": "2001:660:4406:5a0:302:0::2",
-      "kavlan-16": "2001:660:4406:7a0:302:0::2",
-      "kavlan-18": "2001:660:4406:8a0:302:0::2",
-      "kavlan-2": "2001:660:4406:381:2:0::2",
-      "kavlan-20": "2001:660:4406:3a0:302:0::2",
-      "kavlan-21": "2001:660:4406:6a0:302:0::2",
-      "kavlan-3": "2001:660:4406:382:2:0::2",
-      "kavlan-4": "2001:660:4406:390:2:0::2",
-      "kavlan-5": "2001:660:4406:391:2:0::2",
-      "kavlan-6": "2001:660:4406:392:2:0::2",
-      "kavlan-7": "2001:660:4406:393:2:0::2",
-      "kavlan-8": "2001:660:4406:394:2:0::2",
-      "kavlan-9": "2001:660:4406:395:2:0::2"
+      "kavlan-1": "2001:660:4406:380:2::2",
+      "kavlan-11": "2001:660:4406:1a0:302::2",
+      "kavlan-12": "2001:660:4406:2a0:302::2",
+      "kavlan-13": "2001:660:4406:4a0:302::2",
+      "kavlan-14": "2001:660:4406:5a0:302::2",
+      "kavlan-16": "2001:660:4406:7a0:302::2",
+      "kavlan-18": "2001:660:4406:8a0:302::2",
+      "kavlan-2": "2001:660:4406:381:2::2",
+      "kavlan-20": "2001:660:4406:3a0:302::2",
+      "kavlan-21": "2001:660:4406:6a0:302::2",
+      "kavlan-3": "2001:660:4406:382:2::2",
+      "kavlan-4": "2001:660:4406:390:2::2",
+      "kavlan-5": "2001:660:4406:391:2::2",
+      "kavlan-6": "2001:660:4406:392:2::2",
+      "kavlan-7": "2001:660:4406:393:2::2",
+      "kavlan-8": "2001:660:4406:394:2::2",
+      "kavlan-9": "2001:660:4406:395:2::2"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:380:2:1::2",
-      "kavlan-11": "2001:660:4406:1a0:302:1::2",
-      "kavlan-12": "2001:660:4406:2a0:302:1::2",
-      "kavlan-13": "2001:660:4406:4a0:302:1::2",
-      "kavlan-14": "2001:660:4406:5a0:302:1::2",
-      "kavlan-16": "2001:660:4406:7a0:302:1::2",
-      "kavlan-18": "2001:660:4406:8a0:302:1::2",
-      "kavlan-2": "2001:660:4406:381:2:1::2",
-      "kavlan-20": "2001:660:4406:3a0:302:1::2",
-      "kavlan-21": "2001:660:4406:6a0:302:1::2",
-      "kavlan-3": "2001:660:4406:382:2:1::2",
-      "kavlan-4": "2001:660:4406:390:2:1::2",
-      "kavlan-5": "2001:660:4406:391:2:1::2",
-      "kavlan-6": "2001:660:4406:392:2:1::2",
-      "kavlan-7": "2001:660:4406:393:2:1::2",
-      "kavlan-8": "2001:660:4406:394:2:1::2",
-      "kavlan-9": "2001:660:4406:395:2:1::2"
+      "kavlan-1": "2001:660:4406:380:2:1:0:2",
+      "kavlan-11": "2001:660:4406:1a0:302:1:0:2",
+      "kavlan-12": "2001:660:4406:2a0:302:1:0:2",
+      "kavlan-13": "2001:660:4406:4a0:302:1:0:2",
+      "kavlan-14": "2001:660:4406:5a0:302:1:0:2",
+      "kavlan-16": "2001:660:4406:7a0:302:1:0:2",
+      "kavlan-18": "2001:660:4406:8a0:302:1:0:2",
+      "kavlan-2": "2001:660:4406:381:2:1:0:2",
+      "kavlan-20": "2001:660:4406:3a0:302:1:0:2",
+      "kavlan-21": "2001:660:4406:6a0:302:1:0:2",
+      "kavlan-3": "2001:660:4406:382:2:1:0:2",
+      "kavlan-4": "2001:660:4406:390:2:1:0:2",
+      "kavlan-5": "2001:660:4406:391:2:1:0:2",
+      "kavlan-6": "2001:660:4406:392:2:1:0:2",
+      "kavlan-7": "2001:660:4406:393:2:1:0:2",
+      "kavlan-8": "2001:660:4406:394:2:1:0:2",
+      "kavlan-9": "2001:660:4406:395:2:1:0:2"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.2",
-      "ip6": "2001:660:4406:300:2:0::2",
+      "ip6": "2001:660:4406:300:2::2",
       "kavlan": true,
       "mac": "e0:db:55:09:87:90",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.102",
-      "ip6": "2001:660:4406:300:2:1::2",
+      "ip6": "2001:660:4406:300:2:1:0:2",
       "kavlan": true,
       "mac": "e0:db:55:09:87:92",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-3.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-3.json
index 85ec5fe932145e300d0f0e12dcc7707acf1743e7..998a7ee1a82996cf4e92540a4403c32183aef868 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-3.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-3.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2:0::3",
-      "kavlan-11": "2001:660:4406:1a0:302:0::3",
-      "kavlan-12": "2001:660:4406:2a0:302:0::3",
-      "kavlan-13": "2001:660:4406:4a0:302:0::3",
-      "kavlan-14": "2001:660:4406:5a0:302:0::3",
-      "kavlan-16": "2001:660:4406:7a0:302:0::3",
-      "kavlan-18": "2001:660:4406:8a0:302:0::3",
-      "kavlan-2": "2001:660:4406:381:2:0::3",
-      "kavlan-20": "2001:660:4406:3a0:302:0::3",
-      "kavlan-21": "2001:660:4406:6a0:302:0::3",
-      "kavlan-3": "2001:660:4406:382:2:0::3",
-      "kavlan-4": "2001:660:4406:390:2:0::3",
-      "kavlan-5": "2001:660:4406:391:2:0::3",
-      "kavlan-6": "2001:660:4406:392:2:0::3",
-      "kavlan-7": "2001:660:4406:393:2:0::3",
-      "kavlan-8": "2001:660:4406:394:2:0::3",
-      "kavlan-9": "2001:660:4406:395:2:0::3"
+      "kavlan-1": "2001:660:4406:380:2::3",
+      "kavlan-11": "2001:660:4406:1a0:302::3",
+      "kavlan-12": "2001:660:4406:2a0:302::3",
+      "kavlan-13": "2001:660:4406:4a0:302::3",
+      "kavlan-14": "2001:660:4406:5a0:302::3",
+      "kavlan-16": "2001:660:4406:7a0:302::3",
+      "kavlan-18": "2001:660:4406:8a0:302::3",
+      "kavlan-2": "2001:660:4406:381:2::3",
+      "kavlan-20": "2001:660:4406:3a0:302::3",
+      "kavlan-21": "2001:660:4406:6a0:302::3",
+      "kavlan-3": "2001:660:4406:382:2::3",
+      "kavlan-4": "2001:660:4406:390:2::3",
+      "kavlan-5": "2001:660:4406:391:2::3",
+      "kavlan-6": "2001:660:4406:392:2::3",
+      "kavlan-7": "2001:660:4406:393:2::3",
+      "kavlan-8": "2001:660:4406:394:2::3",
+      "kavlan-9": "2001:660:4406:395:2::3"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:380:2:1::3",
-      "kavlan-11": "2001:660:4406:1a0:302:1::3",
-      "kavlan-12": "2001:660:4406:2a0:302:1::3",
-      "kavlan-13": "2001:660:4406:4a0:302:1::3",
-      "kavlan-14": "2001:660:4406:5a0:302:1::3",
-      "kavlan-16": "2001:660:4406:7a0:302:1::3",
-      "kavlan-18": "2001:660:4406:8a0:302:1::3",
-      "kavlan-2": "2001:660:4406:381:2:1::3",
-      "kavlan-20": "2001:660:4406:3a0:302:1::3",
-      "kavlan-21": "2001:660:4406:6a0:302:1::3",
-      "kavlan-3": "2001:660:4406:382:2:1::3",
-      "kavlan-4": "2001:660:4406:390:2:1::3",
-      "kavlan-5": "2001:660:4406:391:2:1::3",
-      "kavlan-6": "2001:660:4406:392:2:1::3",
-      "kavlan-7": "2001:660:4406:393:2:1::3",
-      "kavlan-8": "2001:660:4406:394:2:1::3",
-      "kavlan-9": "2001:660:4406:395:2:1::3"
+      "kavlan-1": "2001:660:4406:380:2:1:0:3",
+      "kavlan-11": "2001:660:4406:1a0:302:1:0:3",
+      "kavlan-12": "2001:660:4406:2a0:302:1:0:3",
+      "kavlan-13": "2001:660:4406:4a0:302:1:0:3",
+      "kavlan-14": "2001:660:4406:5a0:302:1:0:3",
+      "kavlan-16": "2001:660:4406:7a0:302:1:0:3",
+      "kavlan-18": "2001:660:4406:8a0:302:1:0:3",
+      "kavlan-2": "2001:660:4406:381:2:1:0:3",
+      "kavlan-20": "2001:660:4406:3a0:302:1:0:3",
+      "kavlan-21": "2001:660:4406:6a0:302:1:0:3",
+      "kavlan-3": "2001:660:4406:382:2:1:0:3",
+      "kavlan-4": "2001:660:4406:390:2:1:0:3",
+      "kavlan-5": "2001:660:4406:391:2:1:0:3",
+      "kavlan-6": "2001:660:4406:392:2:1:0:3",
+      "kavlan-7": "2001:660:4406:393:2:1:0:3",
+      "kavlan-8": "2001:660:4406:394:2:1:0:3",
+      "kavlan-9": "2001:660:4406:395:2:1:0:3"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.3",
-      "ip6": "2001:660:4406:300:2:0::3",
+      "ip6": "2001:660:4406:300:2::3",
       "kavlan": true,
       "mac": "e0:db:55:09:65:70",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.103",
-      "ip6": "2001:660:4406:300:2:1::3",
+      "ip6": "2001:660:4406:300:2:1:0:3",
       "kavlan": true,
       "mac": "e0:db:55:09:65:72",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-4.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-4.json
index 80724353033911c1f825fdc7cd8837794ed73778..a3ac4ae93f56236fc90509c6885a834a1f2e4750 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-4.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-4.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2:0::4",
-      "kavlan-11": "2001:660:4406:1a0:302:0::4",
-      "kavlan-12": "2001:660:4406:2a0:302:0::4",
-      "kavlan-13": "2001:660:4406:4a0:302:0::4",
-      "kavlan-14": "2001:660:4406:5a0:302:0::4",
-      "kavlan-16": "2001:660:4406:7a0:302:0::4",
-      "kavlan-18": "2001:660:4406:8a0:302:0::4",
-      "kavlan-2": "2001:660:4406:381:2:0::4",
-      "kavlan-20": "2001:660:4406:3a0:302:0::4",
-      "kavlan-21": "2001:660:4406:6a0:302:0::4",
-      "kavlan-3": "2001:660:4406:382:2:0::4",
-      "kavlan-4": "2001:660:4406:390:2:0::4",
-      "kavlan-5": "2001:660:4406:391:2:0::4",
-      "kavlan-6": "2001:660:4406:392:2:0::4",
-      "kavlan-7": "2001:660:4406:393:2:0::4",
-      "kavlan-8": "2001:660:4406:394:2:0::4",
-      "kavlan-9": "2001:660:4406:395:2:0::4"
+      "kavlan-1": "2001:660:4406:380:2::4",
+      "kavlan-11": "2001:660:4406:1a0:302::4",
+      "kavlan-12": "2001:660:4406:2a0:302::4",
+      "kavlan-13": "2001:660:4406:4a0:302::4",
+      "kavlan-14": "2001:660:4406:5a0:302::4",
+      "kavlan-16": "2001:660:4406:7a0:302::4",
+      "kavlan-18": "2001:660:4406:8a0:302::4",
+      "kavlan-2": "2001:660:4406:381:2::4",
+      "kavlan-20": "2001:660:4406:3a0:302::4",
+      "kavlan-21": "2001:660:4406:6a0:302::4",
+      "kavlan-3": "2001:660:4406:382:2::4",
+      "kavlan-4": "2001:660:4406:390:2::4",
+      "kavlan-5": "2001:660:4406:391:2::4",
+      "kavlan-6": "2001:660:4406:392:2::4",
+      "kavlan-7": "2001:660:4406:393:2::4",
+      "kavlan-8": "2001:660:4406:394:2::4",
+      "kavlan-9": "2001:660:4406:395:2::4"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:380:2:1::4",
-      "kavlan-11": "2001:660:4406:1a0:302:1::4",
-      "kavlan-12": "2001:660:4406:2a0:302:1::4",
-      "kavlan-13": "2001:660:4406:4a0:302:1::4",
-      "kavlan-14": "2001:660:4406:5a0:302:1::4",
-      "kavlan-16": "2001:660:4406:7a0:302:1::4",
-      "kavlan-18": "2001:660:4406:8a0:302:1::4",
-      "kavlan-2": "2001:660:4406:381:2:1::4",
-      "kavlan-20": "2001:660:4406:3a0:302:1::4",
-      "kavlan-21": "2001:660:4406:6a0:302:1::4",
-      "kavlan-3": "2001:660:4406:382:2:1::4",
-      "kavlan-4": "2001:660:4406:390:2:1::4",
-      "kavlan-5": "2001:660:4406:391:2:1::4",
-      "kavlan-6": "2001:660:4406:392:2:1::4",
-      "kavlan-7": "2001:660:4406:393:2:1::4",
-      "kavlan-8": "2001:660:4406:394:2:1::4",
-      "kavlan-9": "2001:660:4406:395:2:1::4"
+      "kavlan-1": "2001:660:4406:380:2:1:0:4",
+      "kavlan-11": "2001:660:4406:1a0:302:1:0:4",
+      "kavlan-12": "2001:660:4406:2a0:302:1:0:4",
+      "kavlan-13": "2001:660:4406:4a0:302:1:0:4",
+      "kavlan-14": "2001:660:4406:5a0:302:1:0:4",
+      "kavlan-16": "2001:660:4406:7a0:302:1:0:4",
+      "kavlan-18": "2001:660:4406:8a0:302:1:0:4",
+      "kavlan-2": "2001:660:4406:381:2:1:0:4",
+      "kavlan-20": "2001:660:4406:3a0:302:1:0:4",
+      "kavlan-21": "2001:660:4406:6a0:302:1:0:4",
+      "kavlan-3": "2001:660:4406:382:2:1:0:4",
+      "kavlan-4": "2001:660:4406:390:2:1:0:4",
+      "kavlan-5": "2001:660:4406:391:2:1:0:4",
+      "kavlan-6": "2001:660:4406:392:2:1:0:4",
+      "kavlan-7": "2001:660:4406:393:2:1:0:4",
+      "kavlan-8": "2001:660:4406:394:2:1:0:4",
+      "kavlan-9": "2001:660:4406:395:2:1:0:4"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.4",
-      "ip6": "2001:660:4406:300:2:0::4",
+      "ip6": "2001:660:4406:300:2::4",
       "kavlan": true,
       "mac": "e0:db:55:09:71:90",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.104",
-      "ip6": "2001:660:4406:300:2:1::4",
+      "ip6": "2001:660:4406:300:2:1:0:4",
       "kavlan": true,
       "mac": "e0:db:55:09:71:92",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-5.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-5.json
index 8457c1bf519c899a59c1e05191d6fbef6ae43ea9..6baaa5e1271259dee76a2e9fd7542e9199188ebd 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-5.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-5.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2:0::5",
-      "kavlan-11": "2001:660:4406:1a0:302:0::5",
-      "kavlan-12": "2001:660:4406:2a0:302:0::5",
-      "kavlan-13": "2001:660:4406:4a0:302:0::5",
-      "kavlan-14": "2001:660:4406:5a0:302:0::5",
-      "kavlan-16": "2001:660:4406:7a0:302:0::5",
-      "kavlan-18": "2001:660:4406:8a0:302:0::5",
-      "kavlan-2": "2001:660:4406:381:2:0::5",
-      "kavlan-20": "2001:660:4406:3a0:302:0::5",
-      "kavlan-21": "2001:660:4406:6a0:302:0::5",
-      "kavlan-3": "2001:660:4406:382:2:0::5",
-      "kavlan-4": "2001:660:4406:390:2:0::5",
-      "kavlan-5": "2001:660:4406:391:2:0::5",
-      "kavlan-6": "2001:660:4406:392:2:0::5",
-      "kavlan-7": "2001:660:4406:393:2:0::5",
-      "kavlan-8": "2001:660:4406:394:2:0::5",
-      "kavlan-9": "2001:660:4406:395:2:0::5"
+      "kavlan-1": "2001:660:4406:380:2::5",
+      "kavlan-11": "2001:660:4406:1a0:302::5",
+      "kavlan-12": "2001:660:4406:2a0:302::5",
+      "kavlan-13": "2001:660:4406:4a0:302::5",
+      "kavlan-14": "2001:660:4406:5a0:302::5",
+      "kavlan-16": "2001:660:4406:7a0:302::5",
+      "kavlan-18": "2001:660:4406:8a0:302::5",
+      "kavlan-2": "2001:660:4406:381:2::5",
+      "kavlan-20": "2001:660:4406:3a0:302::5",
+      "kavlan-21": "2001:660:4406:6a0:302::5",
+      "kavlan-3": "2001:660:4406:382:2::5",
+      "kavlan-4": "2001:660:4406:390:2::5",
+      "kavlan-5": "2001:660:4406:391:2::5",
+      "kavlan-6": "2001:660:4406:392:2::5",
+      "kavlan-7": "2001:660:4406:393:2::5",
+      "kavlan-8": "2001:660:4406:394:2::5",
+      "kavlan-9": "2001:660:4406:395:2::5"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:380:2:1::5",
-      "kavlan-11": "2001:660:4406:1a0:302:1::5",
-      "kavlan-12": "2001:660:4406:2a0:302:1::5",
-      "kavlan-13": "2001:660:4406:4a0:302:1::5",
-      "kavlan-14": "2001:660:4406:5a0:302:1::5",
-      "kavlan-16": "2001:660:4406:7a0:302:1::5",
-      "kavlan-18": "2001:660:4406:8a0:302:1::5",
-      "kavlan-2": "2001:660:4406:381:2:1::5",
-      "kavlan-20": "2001:660:4406:3a0:302:1::5",
-      "kavlan-21": "2001:660:4406:6a0:302:1::5",
-      "kavlan-3": "2001:660:4406:382:2:1::5",
-      "kavlan-4": "2001:660:4406:390:2:1::5",
-      "kavlan-5": "2001:660:4406:391:2:1::5",
-      "kavlan-6": "2001:660:4406:392:2:1::5",
-      "kavlan-7": "2001:660:4406:393:2:1::5",
-      "kavlan-8": "2001:660:4406:394:2:1::5",
-      "kavlan-9": "2001:660:4406:395:2:1::5"
+      "kavlan-1": "2001:660:4406:380:2:1:0:5",
+      "kavlan-11": "2001:660:4406:1a0:302:1:0:5",
+      "kavlan-12": "2001:660:4406:2a0:302:1:0:5",
+      "kavlan-13": "2001:660:4406:4a0:302:1:0:5",
+      "kavlan-14": "2001:660:4406:5a0:302:1:0:5",
+      "kavlan-16": "2001:660:4406:7a0:302:1:0:5",
+      "kavlan-18": "2001:660:4406:8a0:302:1:0:5",
+      "kavlan-2": "2001:660:4406:381:2:1:0:5",
+      "kavlan-20": "2001:660:4406:3a0:302:1:0:5",
+      "kavlan-21": "2001:660:4406:6a0:302:1:0:5",
+      "kavlan-3": "2001:660:4406:382:2:1:0:5",
+      "kavlan-4": "2001:660:4406:390:2:1:0:5",
+      "kavlan-5": "2001:660:4406:391:2:1:0:5",
+      "kavlan-6": "2001:660:4406:392:2:1:0:5",
+      "kavlan-7": "2001:660:4406:393:2:1:0:5",
+      "kavlan-8": "2001:660:4406:394:2:1:0:5",
+      "kavlan-9": "2001:660:4406:395:2:1:0:5"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.5",
-      "ip6": "2001:660:4406:300:2:0::5",
+      "ip6": "2001:660:4406:300:2::5",
       "kavlan": true,
       "mac": "e0:db:55:09:d0:40",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.105",
-      "ip6": "2001:660:4406:300:2:1::5",
+      "ip6": "2001:660:4406:300:2:1:0:5",
       "kavlan": true,
       "mac": "e0:db:55:09:d0:42",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-6.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-6.json
index 8d6ea736812e7556ceac01b0620f90b6784132d9..8c5db92240540f4bdeed81103d80b0c9ceb74ee4 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-6.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-6.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2:0::6",
-      "kavlan-11": "2001:660:4406:1a0:302:0::6",
-      "kavlan-12": "2001:660:4406:2a0:302:0::6",
-      "kavlan-13": "2001:660:4406:4a0:302:0::6",
-      "kavlan-14": "2001:660:4406:5a0:302:0::6",
-      "kavlan-16": "2001:660:4406:7a0:302:0::6",
-      "kavlan-18": "2001:660:4406:8a0:302:0::6",
-      "kavlan-2": "2001:660:4406:381:2:0::6",
-      "kavlan-20": "2001:660:4406:3a0:302:0::6",
-      "kavlan-21": "2001:660:4406:6a0:302:0::6",
-      "kavlan-3": "2001:660:4406:382:2:0::6",
-      "kavlan-4": "2001:660:4406:390:2:0::6",
-      "kavlan-5": "2001:660:4406:391:2:0::6",
-      "kavlan-6": "2001:660:4406:392:2:0::6",
-      "kavlan-7": "2001:660:4406:393:2:0::6",
-      "kavlan-8": "2001:660:4406:394:2:0::6",
-      "kavlan-9": "2001:660:4406:395:2:0::6"
+      "kavlan-1": "2001:660:4406:380:2::6",
+      "kavlan-11": "2001:660:4406:1a0:302::6",
+      "kavlan-12": "2001:660:4406:2a0:302::6",
+      "kavlan-13": "2001:660:4406:4a0:302::6",
+      "kavlan-14": "2001:660:4406:5a0:302::6",
+      "kavlan-16": "2001:660:4406:7a0:302::6",
+      "kavlan-18": "2001:660:4406:8a0:302::6",
+      "kavlan-2": "2001:660:4406:381:2::6",
+      "kavlan-20": "2001:660:4406:3a0:302::6",
+      "kavlan-21": "2001:660:4406:6a0:302::6",
+      "kavlan-3": "2001:660:4406:382:2::6",
+      "kavlan-4": "2001:660:4406:390:2::6",
+      "kavlan-5": "2001:660:4406:391:2::6",
+      "kavlan-6": "2001:660:4406:392:2::6",
+      "kavlan-7": "2001:660:4406:393:2::6",
+      "kavlan-8": "2001:660:4406:394:2::6",
+      "kavlan-9": "2001:660:4406:395:2::6"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:380:2:1::6",
-      "kavlan-11": "2001:660:4406:1a0:302:1::6",
-      "kavlan-12": "2001:660:4406:2a0:302:1::6",
-      "kavlan-13": "2001:660:4406:4a0:302:1::6",
-      "kavlan-14": "2001:660:4406:5a0:302:1::6",
-      "kavlan-16": "2001:660:4406:7a0:302:1::6",
-      "kavlan-18": "2001:660:4406:8a0:302:1::6",
-      "kavlan-2": "2001:660:4406:381:2:1::6",
-      "kavlan-20": "2001:660:4406:3a0:302:1::6",
-      "kavlan-21": "2001:660:4406:6a0:302:1::6",
-      "kavlan-3": "2001:660:4406:382:2:1::6",
-      "kavlan-4": "2001:660:4406:390:2:1::6",
-      "kavlan-5": "2001:660:4406:391:2:1::6",
-      "kavlan-6": "2001:660:4406:392:2:1::6",
-      "kavlan-7": "2001:660:4406:393:2:1::6",
-      "kavlan-8": "2001:660:4406:394:2:1::6",
-      "kavlan-9": "2001:660:4406:395:2:1::6"
+      "kavlan-1": "2001:660:4406:380:2:1:0:6",
+      "kavlan-11": "2001:660:4406:1a0:302:1:0:6",
+      "kavlan-12": "2001:660:4406:2a0:302:1:0:6",
+      "kavlan-13": "2001:660:4406:4a0:302:1:0:6",
+      "kavlan-14": "2001:660:4406:5a0:302:1:0:6",
+      "kavlan-16": "2001:660:4406:7a0:302:1:0:6",
+      "kavlan-18": "2001:660:4406:8a0:302:1:0:6",
+      "kavlan-2": "2001:660:4406:381:2:1:0:6",
+      "kavlan-20": "2001:660:4406:3a0:302:1:0:6",
+      "kavlan-21": "2001:660:4406:6a0:302:1:0:6",
+      "kavlan-3": "2001:660:4406:382:2:1:0:6",
+      "kavlan-4": "2001:660:4406:390:2:1:0:6",
+      "kavlan-5": "2001:660:4406:391:2:1:0:6",
+      "kavlan-6": "2001:660:4406:392:2:1:0:6",
+      "kavlan-7": "2001:660:4406:393:2:1:0:6",
+      "kavlan-8": "2001:660:4406:394:2:1:0:6",
+      "kavlan-9": "2001:660:4406:395:2:1:0:6"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.6",
-      "ip6": "2001:660:4406:300:2:0::6",
+      "ip6": "2001:660:4406:300:2::6",
       "kavlan": true,
       "mac": "e0:db:55:09:7b:70",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.106",
-      "ip6": "2001:660:4406:300:2:1::6",
+      "ip6": "2001:660:4406:300:2:1:0:6",
       "kavlan": true,
       "mac": "e0:db:55:09:7b:72",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-7.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-7.json
index 04a1258304c74bbb9393f0c5fa0c3f157b326887..8875f2b10c642174b6c0abdbdc1ae550e3081744 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-7.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-7.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2:0::7",
-      "kavlan-11": "2001:660:4406:1a0:302:0::7",
-      "kavlan-12": "2001:660:4406:2a0:302:0::7",
-      "kavlan-13": "2001:660:4406:4a0:302:0::7",
-      "kavlan-14": "2001:660:4406:5a0:302:0::7",
-      "kavlan-16": "2001:660:4406:7a0:302:0::7",
-      "kavlan-18": "2001:660:4406:8a0:302:0::7",
-      "kavlan-2": "2001:660:4406:381:2:0::7",
-      "kavlan-20": "2001:660:4406:3a0:302:0::7",
-      "kavlan-21": "2001:660:4406:6a0:302:0::7",
-      "kavlan-3": "2001:660:4406:382:2:0::7",
-      "kavlan-4": "2001:660:4406:390:2:0::7",
-      "kavlan-5": "2001:660:4406:391:2:0::7",
-      "kavlan-6": "2001:660:4406:392:2:0::7",
-      "kavlan-7": "2001:660:4406:393:2:0::7",
-      "kavlan-8": "2001:660:4406:394:2:0::7",
-      "kavlan-9": "2001:660:4406:395:2:0::7"
+      "kavlan-1": "2001:660:4406:380:2::7",
+      "kavlan-11": "2001:660:4406:1a0:302::7",
+      "kavlan-12": "2001:660:4406:2a0:302::7",
+      "kavlan-13": "2001:660:4406:4a0:302::7",
+      "kavlan-14": "2001:660:4406:5a0:302::7",
+      "kavlan-16": "2001:660:4406:7a0:302::7",
+      "kavlan-18": "2001:660:4406:8a0:302::7",
+      "kavlan-2": "2001:660:4406:381:2::7",
+      "kavlan-20": "2001:660:4406:3a0:302::7",
+      "kavlan-21": "2001:660:4406:6a0:302::7",
+      "kavlan-3": "2001:660:4406:382:2::7",
+      "kavlan-4": "2001:660:4406:390:2::7",
+      "kavlan-5": "2001:660:4406:391:2::7",
+      "kavlan-6": "2001:660:4406:392:2::7",
+      "kavlan-7": "2001:660:4406:393:2::7",
+      "kavlan-8": "2001:660:4406:394:2::7",
+      "kavlan-9": "2001:660:4406:395:2::7"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:380:2:1::7",
-      "kavlan-11": "2001:660:4406:1a0:302:1::7",
-      "kavlan-12": "2001:660:4406:2a0:302:1::7",
-      "kavlan-13": "2001:660:4406:4a0:302:1::7",
-      "kavlan-14": "2001:660:4406:5a0:302:1::7",
-      "kavlan-16": "2001:660:4406:7a0:302:1::7",
-      "kavlan-18": "2001:660:4406:8a0:302:1::7",
-      "kavlan-2": "2001:660:4406:381:2:1::7",
-      "kavlan-20": "2001:660:4406:3a0:302:1::7",
-      "kavlan-21": "2001:660:4406:6a0:302:1::7",
-      "kavlan-3": "2001:660:4406:382:2:1::7",
-      "kavlan-4": "2001:660:4406:390:2:1::7",
-      "kavlan-5": "2001:660:4406:391:2:1::7",
-      "kavlan-6": "2001:660:4406:392:2:1::7",
-      "kavlan-7": "2001:660:4406:393:2:1::7",
-      "kavlan-8": "2001:660:4406:394:2:1::7",
-      "kavlan-9": "2001:660:4406:395:2:1::7"
+      "kavlan-1": "2001:660:4406:380:2:1:0:7",
+      "kavlan-11": "2001:660:4406:1a0:302:1:0:7",
+      "kavlan-12": "2001:660:4406:2a0:302:1:0:7",
+      "kavlan-13": "2001:660:4406:4a0:302:1:0:7",
+      "kavlan-14": "2001:660:4406:5a0:302:1:0:7",
+      "kavlan-16": "2001:660:4406:7a0:302:1:0:7",
+      "kavlan-18": "2001:660:4406:8a0:302:1:0:7",
+      "kavlan-2": "2001:660:4406:381:2:1:0:7",
+      "kavlan-20": "2001:660:4406:3a0:302:1:0:7",
+      "kavlan-21": "2001:660:4406:6a0:302:1:0:7",
+      "kavlan-3": "2001:660:4406:382:2:1:0:7",
+      "kavlan-4": "2001:660:4406:390:2:1:0:7",
+      "kavlan-5": "2001:660:4406:391:2:1:0:7",
+      "kavlan-6": "2001:660:4406:392:2:1:0:7",
+      "kavlan-7": "2001:660:4406:393:2:1:0:7",
+      "kavlan-8": "2001:660:4406:394:2:1:0:7",
+      "kavlan-9": "2001:660:4406:395:2:1:0:7"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.7",
-      "ip6": "2001:660:4406:300:2:0::7",
+      "ip6": "2001:660:4406:300:2::7",
       "kavlan": true,
       "mac": "e0:db:55:09:ac:80",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.107",
-      "ip6": "2001:660:4406:300:2:1::7",
+      "ip6": "2001:660:4406:300:2:1:0:7",
       "kavlan": true,
       "mac": "e0:db:55:09:ac:82",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-8.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-8.json
index 5235d9d274392eba3ee2b5da11638bc225672301..f4c02524fd795969a7d523316cbbf6a7bffa4ffc 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-8.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-8.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2:0::8",
-      "kavlan-11": "2001:660:4406:1a0:302:0::8",
-      "kavlan-12": "2001:660:4406:2a0:302:0::8",
-      "kavlan-13": "2001:660:4406:4a0:302:0::8",
-      "kavlan-14": "2001:660:4406:5a0:302:0::8",
-      "kavlan-16": "2001:660:4406:7a0:302:0::8",
-      "kavlan-18": "2001:660:4406:8a0:302:0::8",
-      "kavlan-2": "2001:660:4406:381:2:0::8",
-      "kavlan-20": "2001:660:4406:3a0:302:0::8",
-      "kavlan-21": "2001:660:4406:6a0:302:0::8",
-      "kavlan-3": "2001:660:4406:382:2:0::8",
-      "kavlan-4": "2001:660:4406:390:2:0::8",
-      "kavlan-5": "2001:660:4406:391:2:0::8",
-      "kavlan-6": "2001:660:4406:392:2:0::8",
-      "kavlan-7": "2001:660:4406:393:2:0::8",
-      "kavlan-8": "2001:660:4406:394:2:0::8",
-      "kavlan-9": "2001:660:4406:395:2:0::8"
+      "kavlan-1": "2001:660:4406:380:2::8",
+      "kavlan-11": "2001:660:4406:1a0:302::8",
+      "kavlan-12": "2001:660:4406:2a0:302::8",
+      "kavlan-13": "2001:660:4406:4a0:302::8",
+      "kavlan-14": "2001:660:4406:5a0:302::8",
+      "kavlan-16": "2001:660:4406:7a0:302::8",
+      "kavlan-18": "2001:660:4406:8a0:302::8",
+      "kavlan-2": "2001:660:4406:381:2::8",
+      "kavlan-20": "2001:660:4406:3a0:302::8",
+      "kavlan-21": "2001:660:4406:6a0:302::8",
+      "kavlan-3": "2001:660:4406:382:2::8",
+      "kavlan-4": "2001:660:4406:390:2::8",
+      "kavlan-5": "2001:660:4406:391:2::8",
+      "kavlan-6": "2001:660:4406:392:2::8",
+      "kavlan-7": "2001:660:4406:393:2::8",
+      "kavlan-8": "2001:660:4406:394:2::8",
+      "kavlan-9": "2001:660:4406:395:2::8"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:380:2:1::8",
-      "kavlan-11": "2001:660:4406:1a0:302:1::8",
-      "kavlan-12": "2001:660:4406:2a0:302:1::8",
-      "kavlan-13": "2001:660:4406:4a0:302:1::8",
-      "kavlan-14": "2001:660:4406:5a0:302:1::8",
-      "kavlan-16": "2001:660:4406:7a0:302:1::8",
-      "kavlan-18": "2001:660:4406:8a0:302:1::8",
-      "kavlan-2": "2001:660:4406:381:2:1::8",
-      "kavlan-20": "2001:660:4406:3a0:302:1::8",
-      "kavlan-21": "2001:660:4406:6a0:302:1::8",
-      "kavlan-3": "2001:660:4406:382:2:1::8",
-      "kavlan-4": "2001:660:4406:390:2:1::8",
-      "kavlan-5": "2001:660:4406:391:2:1::8",
-      "kavlan-6": "2001:660:4406:392:2:1::8",
-      "kavlan-7": "2001:660:4406:393:2:1::8",
-      "kavlan-8": "2001:660:4406:394:2:1::8",
-      "kavlan-9": "2001:660:4406:395:2:1::8"
+      "kavlan-1": "2001:660:4406:380:2:1:0:8",
+      "kavlan-11": "2001:660:4406:1a0:302:1:0:8",
+      "kavlan-12": "2001:660:4406:2a0:302:1:0:8",
+      "kavlan-13": "2001:660:4406:4a0:302:1:0:8",
+      "kavlan-14": "2001:660:4406:5a0:302:1:0:8",
+      "kavlan-16": "2001:660:4406:7a0:302:1:0:8",
+      "kavlan-18": "2001:660:4406:8a0:302:1:0:8",
+      "kavlan-2": "2001:660:4406:381:2:1:0:8",
+      "kavlan-20": "2001:660:4406:3a0:302:1:0:8",
+      "kavlan-21": "2001:660:4406:6a0:302:1:0:8",
+      "kavlan-3": "2001:660:4406:382:2:1:0:8",
+      "kavlan-4": "2001:660:4406:390:2:1:0:8",
+      "kavlan-5": "2001:660:4406:391:2:1:0:8",
+      "kavlan-6": "2001:660:4406:392:2:1:0:8",
+      "kavlan-7": "2001:660:4406:393:2:1:0:8",
+      "kavlan-8": "2001:660:4406:394:2:1:0:8",
+      "kavlan-9": "2001:660:4406:395:2:1:0:8"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.8",
-      "ip6": "2001:660:4406:300:2:0::8",
+      "ip6": "2001:660:4406:300:2::8",
       "kavlan": true,
       "mac": "e0:db:55:09:85:f0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.108",
-      "ip6": "2001:660:4406:300:2:1::8",
+      "ip6": "2001:660:4406:300:2:1:0:8",
       "kavlan": true,
       "mac": "e0:db:55:09:85:f2",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-9.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-9.json
index eaecc7ab8e4aec0cdb4e92c4a4fa7d17f8bb580b..e69dc445cb97bfb242dd88f9dbf33cfc22b121ba 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-9.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-9.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2:0::9",
-      "kavlan-11": "2001:660:4406:1a0:302:0::9",
-      "kavlan-12": "2001:660:4406:2a0:302:0::9",
-      "kavlan-13": "2001:660:4406:4a0:302:0::9",
-      "kavlan-14": "2001:660:4406:5a0:302:0::9",
-      "kavlan-16": "2001:660:4406:7a0:302:0::9",
-      "kavlan-18": "2001:660:4406:8a0:302:0::9",
-      "kavlan-2": "2001:660:4406:381:2:0::9",
-      "kavlan-20": "2001:660:4406:3a0:302:0::9",
-      "kavlan-21": "2001:660:4406:6a0:302:0::9",
-      "kavlan-3": "2001:660:4406:382:2:0::9",
-      "kavlan-4": "2001:660:4406:390:2:0::9",
-      "kavlan-5": "2001:660:4406:391:2:0::9",
-      "kavlan-6": "2001:660:4406:392:2:0::9",
-      "kavlan-7": "2001:660:4406:393:2:0::9",
-      "kavlan-8": "2001:660:4406:394:2:0::9",
-      "kavlan-9": "2001:660:4406:395:2:0::9"
+      "kavlan-1": "2001:660:4406:380:2::9",
+      "kavlan-11": "2001:660:4406:1a0:302::9",
+      "kavlan-12": "2001:660:4406:2a0:302::9",
+      "kavlan-13": "2001:660:4406:4a0:302::9",
+      "kavlan-14": "2001:660:4406:5a0:302::9",
+      "kavlan-16": "2001:660:4406:7a0:302::9",
+      "kavlan-18": "2001:660:4406:8a0:302::9",
+      "kavlan-2": "2001:660:4406:381:2::9",
+      "kavlan-20": "2001:660:4406:3a0:302::9",
+      "kavlan-21": "2001:660:4406:6a0:302::9",
+      "kavlan-3": "2001:660:4406:382:2::9",
+      "kavlan-4": "2001:660:4406:390:2::9",
+      "kavlan-5": "2001:660:4406:391:2::9",
+      "kavlan-6": "2001:660:4406:392:2::9",
+      "kavlan-7": "2001:660:4406:393:2::9",
+      "kavlan-8": "2001:660:4406:394:2::9",
+      "kavlan-9": "2001:660:4406:395:2::9"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:380:2:1::9",
-      "kavlan-11": "2001:660:4406:1a0:302:1::9",
-      "kavlan-12": "2001:660:4406:2a0:302:1::9",
-      "kavlan-13": "2001:660:4406:4a0:302:1::9",
-      "kavlan-14": "2001:660:4406:5a0:302:1::9",
-      "kavlan-16": "2001:660:4406:7a0:302:1::9",
-      "kavlan-18": "2001:660:4406:8a0:302:1::9",
-      "kavlan-2": "2001:660:4406:381:2:1::9",
-      "kavlan-20": "2001:660:4406:3a0:302:1::9",
-      "kavlan-21": "2001:660:4406:6a0:302:1::9",
-      "kavlan-3": "2001:660:4406:382:2:1::9",
-      "kavlan-4": "2001:660:4406:390:2:1::9",
-      "kavlan-5": "2001:660:4406:391:2:1::9",
-      "kavlan-6": "2001:660:4406:392:2:1::9",
-      "kavlan-7": "2001:660:4406:393:2:1::9",
-      "kavlan-8": "2001:660:4406:394:2:1::9",
-      "kavlan-9": "2001:660:4406:395:2:1::9"
+      "kavlan-1": "2001:660:4406:380:2:1:0:9",
+      "kavlan-11": "2001:660:4406:1a0:302:1:0:9",
+      "kavlan-12": "2001:660:4406:2a0:302:1:0:9",
+      "kavlan-13": "2001:660:4406:4a0:302:1:0:9",
+      "kavlan-14": "2001:660:4406:5a0:302:1:0:9",
+      "kavlan-16": "2001:660:4406:7a0:302:1:0:9",
+      "kavlan-18": "2001:660:4406:8a0:302:1:0:9",
+      "kavlan-2": "2001:660:4406:381:2:1:0:9",
+      "kavlan-20": "2001:660:4406:3a0:302:1:0:9",
+      "kavlan-21": "2001:660:4406:6a0:302:1:0:9",
+      "kavlan-3": "2001:660:4406:382:2:1:0:9",
+      "kavlan-4": "2001:660:4406:390:2:1:0:9",
+      "kavlan-5": "2001:660:4406:391:2:1:0:9",
+      "kavlan-6": "2001:660:4406:392:2:1:0:9",
+      "kavlan-7": "2001:660:4406:393:2:1:0:9",
+      "kavlan-8": "2001:660:4406:394:2:1:0:9",
+      "kavlan-9": "2001:660:4406:395:2:1:0:9"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.9",
-      "ip6": "2001:660:4406:300:2:0::9",
+      "ip6": "2001:660:4406:300:2::9",
       "kavlan": true,
       "mac": "e0:db:55:09:7d:30",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.109",
-      "ip6": "2001:660:4406:300:2:1::9",
+      "ip6": "2001:660:4406:300:2:1:0:9",
       "kavlan": true,
       "mac": "e0:db:55:09:7d:32",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/luxembourg.json b/data/grid5000/sites/luxembourg/luxembourg.json
index 852fd783024876e4ff36d0753b91a8686d82f768..b9cd61e4c52b1840c2b5767374b77e69a8068e40 100644
--- a/data/grid5000/sites/luxembourg/luxembourg.json
+++ b/data/grid5000/sites/luxembourg/luxembourg.json
@@ -8,7 +8,7 @@
     "network": "10.172.0.0/14"
   },
   "ipv6": {
-    "prefix": "2001:660:4406:03",
+    "prefix": "2001:660:4406:300::/56",
     "site_global_kavlan": 20,
     "site_index": 3
   },
diff --git a/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-1.json b/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-1.json
index 18defe941dc5354d3a82743fb85b4a4aa0ddddf4..50d856cd6306dd391767d1e3cd044ad3124ea0c8 100644
--- a/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-1.json
+++ b/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-1.json
@@ -115,23 +115,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:6:0::1",
-      "kavlan-11": "2001:660:4406:1a0:406:0::1",
-      "kavlan-12": "2001:660:4406:2a0:406:0::1",
-      "kavlan-13": "2001:660:4406:4a0:406:0::1",
-      "kavlan-14": "2001:660:4406:5a0:406:0::1",
-      "kavlan-16": "2001:660:4406:7a0:406:0::1",
-      "kavlan-18": "2001:660:4406:8a0:406:0::1",
-      "kavlan-2": "2001:660:4406:481:6:0::1",
-      "kavlan-20": "2001:660:4406:3a0:406:0::1",
-      "kavlan-21": "2001:660:4406:6a0:406:0::1",
-      "kavlan-3": "2001:660:4406:482:6:0::1",
-      "kavlan-4": "2001:660:4406:490:6:0::1",
-      "kavlan-5": "2001:660:4406:491:6:0::1",
-      "kavlan-6": "2001:660:4406:492:6:0::1",
-      "kavlan-7": "2001:660:4406:493:6:0::1",
-      "kavlan-8": "2001:660:4406:494:6:0::1",
-      "kavlan-9": "2001:660:4406:495:6:0::1"
+      "kavlan-1": "2001:660:4406:480:6::1",
+      "kavlan-11": "2001:660:4406:1a0:406::1",
+      "kavlan-12": "2001:660:4406:2a0:406::1",
+      "kavlan-13": "2001:660:4406:4a0:406::1",
+      "kavlan-14": "2001:660:4406:5a0:406::1",
+      "kavlan-16": "2001:660:4406:7a0:406::1",
+      "kavlan-18": "2001:660:4406:8a0:406::1",
+      "kavlan-2": "2001:660:4406:481:6::1",
+      "kavlan-20": "2001:660:4406:3a0:406::1",
+      "kavlan-21": "2001:660:4406:6a0:406::1",
+      "kavlan-3": "2001:660:4406:482:6::1",
+      "kavlan-4": "2001:660:4406:490:6::1",
+      "kavlan-5": "2001:660:4406:491:6::1",
+      "kavlan-6": "2001:660:4406:492:6::1",
+      "kavlan-7": "2001:660:4406:493:6::1",
+      "kavlan-8": "2001:660:4406:494:6::1",
+      "kavlan-9": "2001:660:4406:495:6::1"
     }
   },
   "main_memory": {
@@ -148,7 +148,7 @@
       "firmware_version": "0x800003e2, 1.1147.0",
       "interface": "Ethernet",
       "ip": "172.16.53.1",
-      "ip6": "2001:660:4406:400:6:0::1",
+      "ip6": "2001:660:4406:400:6::1",
       "kavlan": true,
       "mac": "d8:c4:97:b8:32:83",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-2.json b/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-2.json
index 4fb2beeab035ddc21ba2144de0d590913191827f..8277b8905d79ac1d2bd2ea0c8635c76a7272bb36 100644
--- a/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-2.json
+++ b/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-2.json
@@ -115,23 +115,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:6:0::2",
-      "kavlan-11": "2001:660:4406:1a0:406:0::2",
-      "kavlan-12": "2001:660:4406:2a0:406:0::2",
-      "kavlan-13": "2001:660:4406:4a0:406:0::2",
-      "kavlan-14": "2001:660:4406:5a0:406:0::2",
-      "kavlan-16": "2001:660:4406:7a0:406:0::2",
-      "kavlan-18": "2001:660:4406:8a0:406:0::2",
-      "kavlan-2": "2001:660:4406:481:6:0::2",
-      "kavlan-20": "2001:660:4406:3a0:406:0::2",
-      "kavlan-21": "2001:660:4406:6a0:406:0::2",
-      "kavlan-3": "2001:660:4406:482:6:0::2",
-      "kavlan-4": "2001:660:4406:490:6:0::2",
-      "kavlan-5": "2001:660:4406:491:6:0::2",
-      "kavlan-6": "2001:660:4406:492:6:0::2",
-      "kavlan-7": "2001:660:4406:493:6:0::2",
-      "kavlan-8": "2001:660:4406:494:6:0::2",
-      "kavlan-9": "2001:660:4406:495:6:0::2"
+      "kavlan-1": "2001:660:4406:480:6::2",
+      "kavlan-11": "2001:660:4406:1a0:406::2",
+      "kavlan-12": "2001:660:4406:2a0:406::2",
+      "kavlan-13": "2001:660:4406:4a0:406::2",
+      "kavlan-14": "2001:660:4406:5a0:406::2",
+      "kavlan-16": "2001:660:4406:7a0:406::2",
+      "kavlan-18": "2001:660:4406:8a0:406::2",
+      "kavlan-2": "2001:660:4406:481:6::2",
+      "kavlan-20": "2001:660:4406:3a0:406::2",
+      "kavlan-21": "2001:660:4406:6a0:406::2",
+      "kavlan-3": "2001:660:4406:482:6::2",
+      "kavlan-4": "2001:660:4406:490:6::2",
+      "kavlan-5": "2001:660:4406:491:6::2",
+      "kavlan-6": "2001:660:4406:492:6::2",
+      "kavlan-7": "2001:660:4406:493:6::2",
+      "kavlan-8": "2001:660:4406:494:6::2",
+      "kavlan-9": "2001:660:4406:495:6::2"
     }
   },
   "main_memory": {
@@ -148,7 +148,7 @@
       "firmware_version": "0x800003e2, 1.1147.0",
       "interface": "Ethernet",
       "ip": "172.16.53.2",
-      "ip6": "2001:660:4406:400:6:0::2",
+      "ip6": "2001:660:4406:400:6::2",
       "kavlan": true,
       "mac": "d8:c4:97:b8:32:fd",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-1.json b/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-1.json
index de1b9f27fe5ef72656cb977a236c075271de9e34..0ec6566ace8927be16ab24602c6331dcf022709a 100644
--- a/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-1.json
+++ b/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:4:0::1",
-      "kavlan-11": "2001:660:4406:1a0:404:0::1",
-      "kavlan-12": "2001:660:4406:2a0:404:0::1",
-      "kavlan-13": "2001:660:4406:4a0:404:0::1",
-      "kavlan-14": "2001:660:4406:5a0:404:0::1",
-      "kavlan-16": "2001:660:4406:7a0:404:0::1",
-      "kavlan-18": "2001:660:4406:8a0:404:0::1",
-      "kavlan-2": "2001:660:4406:481:4:0::1",
-      "kavlan-20": "2001:660:4406:3a0:404:0::1",
-      "kavlan-21": "2001:660:4406:6a0:404:0::1",
-      "kavlan-3": "2001:660:4406:482:4:0::1",
-      "kavlan-4": "2001:660:4406:490:4:0::1",
-      "kavlan-5": "2001:660:4406:491:4:0::1",
-      "kavlan-6": "2001:660:4406:492:4:0::1",
-      "kavlan-7": "2001:660:4406:493:4:0::1",
-      "kavlan-8": "2001:660:4406:494:4:0::1",
-      "kavlan-9": "2001:660:4406:495:4:0::1"
+      "kavlan-1": "2001:660:4406:480:4::1",
+      "kavlan-11": "2001:660:4406:1a0:404::1",
+      "kavlan-12": "2001:660:4406:2a0:404::1",
+      "kavlan-13": "2001:660:4406:4a0:404::1",
+      "kavlan-14": "2001:660:4406:5a0:404::1",
+      "kavlan-16": "2001:660:4406:7a0:404::1",
+      "kavlan-18": "2001:660:4406:8a0:404::1",
+      "kavlan-2": "2001:660:4406:481:4::1",
+      "kavlan-20": "2001:660:4406:3a0:404::1",
+      "kavlan-21": "2001:660:4406:6a0:404::1",
+      "kavlan-3": "2001:660:4406:482:4::1",
+      "kavlan-4": "2001:660:4406:490:4::1",
+      "kavlan-5": "2001:660:4406:491:4::1",
+      "kavlan-6": "2001:660:4406:492:4::1",
+      "kavlan-7": "2001:660:4406:493:4::1",
+      "kavlan-8": "2001:660:4406:494:4::1",
+      "kavlan-9": "2001:660:4406:495:4::1"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "0x00000000",
       "interface": "Ethernet",
       "ip": "172.16.51.1",
-      "ip6": "2001:660:4406:400:4:0::1",
+      "ip6": "2001:660:4406:400:4::1",
       "kavlan": true,
       "mac": "00:8c:fa:0b:b9:c3",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-2.json b/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-2.json
index d74c7099a90fbcdf06c78c9794093f9e227b0bfc..7424da729b39c2e59b225903b49128ea20b01117 100644
--- a/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-2.json
+++ b/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:4:0::2",
-      "kavlan-11": "2001:660:4406:1a0:404:0::2",
-      "kavlan-12": "2001:660:4406:2a0:404:0::2",
-      "kavlan-13": "2001:660:4406:4a0:404:0::2",
-      "kavlan-14": "2001:660:4406:5a0:404:0::2",
-      "kavlan-16": "2001:660:4406:7a0:404:0::2",
-      "kavlan-18": "2001:660:4406:8a0:404:0::2",
-      "kavlan-2": "2001:660:4406:481:4:0::2",
-      "kavlan-20": "2001:660:4406:3a0:404:0::2",
-      "kavlan-21": "2001:660:4406:6a0:404:0::2",
-      "kavlan-3": "2001:660:4406:482:4:0::2",
-      "kavlan-4": "2001:660:4406:490:4:0::2",
-      "kavlan-5": "2001:660:4406:491:4:0::2",
-      "kavlan-6": "2001:660:4406:492:4:0::2",
-      "kavlan-7": "2001:660:4406:493:4:0::2",
-      "kavlan-8": "2001:660:4406:494:4:0::2",
-      "kavlan-9": "2001:660:4406:495:4:0::2"
+      "kavlan-1": "2001:660:4406:480:4::2",
+      "kavlan-11": "2001:660:4406:1a0:404::2",
+      "kavlan-12": "2001:660:4406:2a0:404::2",
+      "kavlan-13": "2001:660:4406:4a0:404::2",
+      "kavlan-14": "2001:660:4406:5a0:404::2",
+      "kavlan-16": "2001:660:4406:7a0:404::2",
+      "kavlan-18": "2001:660:4406:8a0:404::2",
+      "kavlan-2": "2001:660:4406:481:4::2",
+      "kavlan-20": "2001:660:4406:3a0:404::2",
+      "kavlan-21": "2001:660:4406:6a0:404::2",
+      "kavlan-3": "2001:660:4406:482:4::2",
+      "kavlan-4": "2001:660:4406:490:4::2",
+      "kavlan-5": "2001:660:4406:491:4::2",
+      "kavlan-6": "2001:660:4406:492:4::2",
+      "kavlan-7": "2001:660:4406:493:4::2",
+      "kavlan-8": "2001:660:4406:494:4::2",
+      "kavlan-9": "2001:660:4406:495:4::2"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "0x00000000",
       "interface": "Ethernet",
       "ip": "172.16.51.2",
-      "ip6": "2001:660:4406:400:4:0::2",
+      "ip6": "2001:660:4406:400:4::2",
       "kavlan": true,
       "mac": "00:8c:fa:0b:b4:bd",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-3.json b/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-3.json
index 632657ed0124143684d323ba3b7e609220e2b839..580c292f77881585322982147d2f2990fac6f5cd 100644
--- a/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-3.json
+++ b/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:4:0::3",
-      "kavlan-11": "2001:660:4406:1a0:404:0::3",
-      "kavlan-12": "2001:660:4406:2a0:404:0::3",
-      "kavlan-13": "2001:660:4406:4a0:404:0::3",
-      "kavlan-14": "2001:660:4406:5a0:404:0::3",
-      "kavlan-16": "2001:660:4406:7a0:404:0::3",
-      "kavlan-18": "2001:660:4406:8a0:404:0::3",
-      "kavlan-2": "2001:660:4406:481:4:0::3",
-      "kavlan-20": "2001:660:4406:3a0:404:0::3",
-      "kavlan-21": "2001:660:4406:6a0:404:0::3",
-      "kavlan-3": "2001:660:4406:482:4:0::3",
-      "kavlan-4": "2001:660:4406:490:4:0::3",
-      "kavlan-5": "2001:660:4406:491:4:0::3",
-      "kavlan-6": "2001:660:4406:492:4:0::3",
-      "kavlan-7": "2001:660:4406:493:4:0::3",
-      "kavlan-8": "2001:660:4406:494:4:0::3",
-      "kavlan-9": "2001:660:4406:495:4:0::3"
+      "kavlan-1": "2001:660:4406:480:4::3",
+      "kavlan-11": "2001:660:4406:1a0:404::3",
+      "kavlan-12": "2001:660:4406:2a0:404::3",
+      "kavlan-13": "2001:660:4406:4a0:404::3",
+      "kavlan-14": "2001:660:4406:5a0:404::3",
+      "kavlan-16": "2001:660:4406:7a0:404::3",
+      "kavlan-18": "2001:660:4406:8a0:404::3",
+      "kavlan-2": "2001:660:4406:481:4::3",
+      "kavlan-20": "2001:660:4406:3a0:404::3",
+      "kavlan-21": "2001:660:4406:6a0:404::3",
+      "kavlan-3": "2001:660:4406:482:4::3",
+      "kavlan-4": "2001:660:4406:490:4::3",
+      "kavlan-5": "2001:660:4406:491:4::3",
+      "kavlan-6": "2001:660:4406:492:4::3",
+      "kavlan-7": "2001:660:4406:493:4::3",
+      "kavlan-8": "2001:660:4406:494:4::3",
+      "kavlan-9": "2001:660:4406:495:4::3"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "0x00000000",
       "interface": "Ethernet",
       "ip": "172.16.51.3",
-      "ip6": "2001:660:4406:400:4:0::3",
+      "ip6": "2001:660:4406:400:4::3",
       "kavlan": true,
       "mac": "00:8c:fa:0b:e1:79",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-4.json b/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-4.json
index 4b1c350392cbabbc44327bdb08ec2304096b545c..ba289b509c32b64e1098de70ee0f26d398e605bc 100644
--- a/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-4.json
+++ b/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:4:0::4",
-      "kavlan-11": "2001:660:4406:1a0:404:0::4",
-      "kavlan-12": "2001:660:4406:2a0:404:0::4",
-      "kavlan-13": "2001:660:4406:4a0:404:0::4",
-      "kavlan-14": "2001:660:4406:5a0:404:0::4",
-      "kavlan-16": "2001:660:4406:7a0:404:0::4",
-      "kavlan-18": "2001:660:4406:8a0:404:0::4",
-      "kavlan-2": "2001:660:4406:481:4:0::4",
-      "kavlan-20": "2001:660:4406:3a0:404:0::4",
-      "kavlan-21": "2001:660:4406:6a0:404:0::4",
-      "kavlan-3": "2001:660:4406:482:4:0::4",
-      "kavlan-4": "2001:660:4406:490:4:0::4",
-      "kavlan-5": "2001:660:4406:491:4:0::4",
-      "kavlan-6": "2001:660:4406:492:4:0::4",
-      "kavlan-7": "2001:660:4406:493:4:0::4",
-      "kavlan-8": "2001:660:4406:494:4:0::4",
-      "kavlan-9": "2001:660:4406:495:4:0::4"
+      "kavlan-1": "2001:660:4406:480:4::4",
+      "kavlan-11": "2001:660:4406:1a0:404::4",
+      "kavlan-12": "2001:660:4406:2a0:404::4",
+      "kavlan-13": "2001:660:4406:4a0:404::4",
+      "kavlan-14": "2001:660:4406:5a0:404::4",
+      "kavlan-16": "2001:660:4406:7a0:404::4",
+      "kavlan-18": "2001:660:4406:8a0:404::4",
+      "kavlan-2": "2001:660:4406:481:4::4",
+      "kavlan-20": "2001:660:4406:3a0:404::4",
+      "kavlan-21": "2001:660:4406:6a0:404::4",
+      "kavlan-3": "2001:660:4406:482:4::4",
+      "kavlan-4": "2001:660:4406:490:4::4",
+      "kavlan-5": "2001:660:4406:491:4::4",
+      "kavlan-6": "2001:660:4406:492:4::4",
+      "kavlan-7": "2001:660:4406:493:4::4",
+      "kavlan-8": "2001:660:4406:494:4::4",
+      "kavlan-9": "2001:660:4406:495:4::4"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "0x00000000",
       "interface": "Ethernet",
       "ip": "172.16.51.4",
-      "ip6": "2001:660:4406:400:4:0::4",
+      "ip6": "2001:660:4406:400:4::4",
       "kavlan": true,
       "mac": "00:8c:fa:0b:d8:53",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-1.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-1.json
index 90535d6ca31b70f0a7870119cdd4bd6db05b186e..a0f0f63d861a2c6c34ee12c62d4792466f9117ee 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-1.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::1",
-      "kavlan-11": "2001:660:4406:1a0:405:0::1",
-      "kavlan-12": "2001:660:4406:2a0:405:0::1",
-      "kavlan-13": "2001:660:4406:4a0:405:0::1",
-      "kavlan-14": "2001:660:4406:5a0:405:0::1",
-      "kavlan-16": "2001:660:4406:7a0:405:0::1",
-      "kavlan-18": "2001:660:4406:8a0:405:0::1",
-      "kavlan-2": "2001:660:4406:481:5:0::1",
-      "kavlan-20": "2001:660:4406:3a0:405:0::1",
-      "kavlan-21": "2001:660:4406:6a0:405:0::1",
-      "kavlan-3": "2001:660:4406:482:5:0::1",
-      "kavlan-4": "2001:660:4406:490:5:0::1",
-      "kavlan-5": "2001:660:4406:491:5:0::1",
-      "kavlan-6": "2001:660:4406:492:5:0::1",
-      "kavlan-7": "2001:660:4406:493:5:0::1",
-      "kavlan-8": "2001:660:4406:494:5:0::1",
-      "kavlan-9": "2001:660:4406:495:5:0::1"
+      "kavlan-1": "2001:660:4406:480:5::1",
+      "kavlan-11": "2001:660:4406:1a0:405::1",
+      "kavlan-12": "2001:660:4406:2a0:405::1",
+      "kavlan-13": "2001:660:4406:4a0:405::1",
+      "kavlan-14": "2001:660:4406:5a0:405::1",
+      "kavlan-16": "2001:660:4406:7a0:405::1",
+      "kavlan-18": "2001:660:4406:8a0:405::1",
+      "kavlan-2": "2001:660:4406:481:5::1",
+      "kavlan-20": "2001:660:4406:3a0:405::1",
+      "kavlan-21": "2001:660:4406:6a0:405::1",
+      "kavlan-3": "2001:660:4406:482:5::1",
+      "kavlan-4": "2001:660:4406:490:5::1",
+      "kavlan-5": "2001:660:4406:491:5::1",
+      "kavlan-6": "2001:660:4406:492:5::1",
+      "kavlan-7": "2001:660:4406:493:5::1",
+      "kavlan-8": "2001:660:4406:494:5::1",
+      "kavlan-9": "2001:660:4406:495:5::1"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.1",
-      "ip6": "2001:660:4406:400:5:0::1",
+      "ip6": "2001:660:4406:400:5::1",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c2:c4",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-10.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-10.json
index c9c59be8919827fbeff93d25ec62132281958a7a..dec100559e374ab752de45bd8197ad610f3423f2 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-10.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::a",
-      "kavlan-11": "2001:660:4406:1a0:405:0::a",
-      "kavlan-12": "2001:660:4406:2a0:405:0::a",
-      "kavlan-13": "2001:660:4406:4a0:405:0::a",
-      "kavlan-14": "2001:660:4406:5a0:405:0::a",
-      "kavlan-16": "2001:660:4406:7a0:405:0::a",
-      "kavlan-18": "2001:660:4406:8a0:405:0::a",
-      "kavlan-2": "2001:660:4406:481:5:0::a",
-      "kavlan-20": "2001:660:4406:3a0:405:0::a",
-      "kavlan-21": "2001:660:4406:6a0:405:0::a",
-      "kavlan-3": "2001:660:4406:482:5:0::a",
-      "kavlan-4": "2001:660:4406:490:5:0::a",
-      "kavlan-5": "2001:660:4406:491:5:0::a",
-      "kavlan-6": "2001:660:4406:492:5:0::a",
-      "kavlan-7": "2001:660:4406:493:5:0::a",
-      "kavlan-8": "2001:660:4406:494:5:0::a",
-      "kavlan-9": "2001:660:4406:495:5:0::a"
+      "kavlan-1": "2001:660:4406:480:5::a",
+      "kavlan-11": "2001:660:4406:1a0:405::a",
+      "kavlan-12": "2001:660:4406:2a0:405::a",
+      "kavlan-13": "2001:660:4406:4a0:405::a",
+      "kavlan-14": "2001:660:4406:5a0:405::a",
+      "kavlan-16": "2001:660:4406:7a0:405::a",
+      "kavlan-18": "2001:660:4406:8a0:405::a",
+      "kavlan-2": "2001:660:4406:481:5::a",
+      "kavlan-20": "2001:660:4406:3a0:405::a",
+      "kavlan-21": "2001:660:4406:6a0:405::a",
+      "kavlan-3": "2001:660:4406:482:5::a",
+      "kavlan-4": "2001:660:4406:490:5::a",
+      "kavlan-5": "2001:660:4406:491:5::a",
+      "kavlan-6": "2001:660:4406:492:5::a",
+      "kavlan-7": "2001:660:4406:493:5::a",
+      "kavlan-8": "2001:660:4406:494:5::a",
+      "kavlan-9": "2001:660:4406:495:5::a"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.10",
-      "ip6": "2001:660:4406:400:5:0::a",
+      "ip6": "2001:660:4406:400:5::a",
       "kavlan": true,
       "mac": "a0:36:9f:ce:e4:20",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-11.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-11.json
index c0821909f35ec7be50ee53ebd63b260cb2f154fc..baff1e8da87f235ebfdad6a7a258df01fb522e97 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-11.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::b",
-      "kavlan-11": "2001:660:4406:1a0:405:0::b",
-      "kavlan-12": "2001:660:4406:2a0:405:0::b",
-      "kavlan-13": "2001:660:4406:4a0:405:0::b",
-      "kavlan-14": "2001:660:4406:5a0:405:0::b",
-      "kavlan-16": "2001:660:4406:7a0:405:0::b",
-      "kavlan-18": "2001:660:4406:8a0:405:0::b",
-      "kavlan-2": "2001:660:4406:481:5:0::b",
-      "kavlan-20": "2001:660:4406:3a0:405:0::b",
-      "kavlan-21": "2001:660:4406:6a0:405:0::b",
-      "kavlan-3": "2001:660:4406:482:5:0::b",
-      "kavlan-4": "2001:660:4406:490:5:0::b",
-      "kavlan-5": "2001:660:4406:491:5:0::b",
-      "kavlan-6": "2001:660:4406:492:5:0::b",
-      "kavlan-7": "2001:660:4406:493:5:0::b",
-      "kavlan-8": "2001:660:4406:494:5:0::b",
-      "kavlan-9": "2001:660:4406:495:5:0::b"
+      "kavlan-1": "2001:660:4406:480:5::b",
+      "kavlan-11": "2001:660:4406:1a0:405::b",
+      "kavlan-12": "2001:660:4406:2a0:405::b",
+      "kavlan-13": "2001:660:4406:4a0:405::b",
+      "kavlan-14": "2001:660:4406:5a0:405::b",
+      "kavlan-16": "2001:660:4406:7a0:405::b",
+      "kavlan-18": "2001:660:4406:8a0:405::b",
+      "kavlan-2": "2001:660:4406:481:5::b",
+      "kavlan-20": "2001:660:4406:3a0:405::b",
+      "kavlan-21": "2001:660:4406:6a0:405::b",
+      "kavlan-3": "2001:660:4406:482:5::b",
+      "kavlan-4": "2001:660:4406:490:5::b",
+      "kavlan-5": "2001:660:4406:491:5::b",
+      "kavlan-6": "2001:660:4406:492:5::b",
+      "kavlan-7": "2001:660:4406:493:5::b",
+      "kavlan-8": "2001:660:4406:494:5::b",
+      "kavlan-9": "2001:660:4406:495:5::b"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.11",
-      "ip6": "2001:660:4406:400:5:0::b",
+      "ip6": "2001:660:4406:400:5::b",
       "kavlan": true,
       "mac": "a0:36:9f:ce:e4:50",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-12.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-12.json
index c51537de894e7407cb6eaad0a7a0708d5bfdd6d7..7ac6921aa8d2055d87149b010c81660d04800c03 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-12.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::c",
-      "kavlan-11": "2001:660:4406:1a0:405:0::c",
-      "kavlan-12": "2001:660:4406:2a0:405:0::c",
-      "kavlan-13": "2001:660:4406:4a0:405:0::c",
-      "kavlan-14": "2001:660:4406:5a0:405:0::c",
-      "kavlan-16": "2001:660:4406:7a0:405:0::c",
-      "kavlan-18": "2001:660:4406:8a0:405:0::c",
-      "kavlan-2": "2001:660:4406:481:5:0::c",
-      "kavlan-20": "2001:660:4406:3a0:405:0::c",
-      "kavlan-21": "2001:660:4406:6a0:405:0::c",
-      "kavlan-3": "2001:660:4406:482:5:0::c",
-      "kavlan-4": "2001:660:4406:490:5:0::c",
-      "kavlan-5": "2001:660:4406:491:5:0::c",
-      "kavlan-6": "2001:660:4406:492:5:0::c",
-      "kavlan-7": "2001:660:4406:493:5:0::c",
-      "kavlan-8": "2001:660:4406:494:5:0::c",
-      "kavlan-9": "2001:660:4406:495:5:0::c"
+      "kavlan-1": "2001:660:4406:480:5::c",
+      "kavlan-11": "2001:660:4406:1a0:405::c",
+      "kavlan-12": "2001:660:4406:2a0:405::c",
+      "kavlan-13": "2001:660:4406:4a0:405::c",
+      "kavlan-14": "2001:660:4406:5a0:405::c",
+      "kavlan-16": "2001:660:4406:7a0:405::c",
+      "kavlan-18": "2001:660:4406:8a0:405::c",
+      "kavlan-2": "2001:660:4406:481:5::c",
+      "kavlan-20": "2001:660:4406:3a0:405::c",
+      "kavlan-21": "2001:660:4406:6a0:405::c",
+      "kavlan-3": "2001:660:4406:482:5::c",
+      "kavlan-4": "2001:660:4406:490:5::c",
+      "kavlan-5": "2001:660:4406:491:5::c",
+      "kavlan-6": "2001:660:4406:492:5::c",
+      "kavlan-7": "2001:660:4406:493:5::c",
+      "kavlan-8": "2001:660:4406:494:5::c",
+      "kavlan-9": "2001:660:4406:495:5::c"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.12",
-      "ip6": "2001:660:4406:400:5:0::c",
+      "ip6": "2001:660:4406:400:5::c",
       "kavlan": true,
       "mac": "a0:36:9f:ce:e4:3c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-13.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-13.json
index b1866569abd74689fa06953d04646d2827e48302..a71154564ad12746af4594a4ff5c92b2d2441d4a 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-13.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::d",
-      "kavlan-11": "2001:660:4406:1a0:405:0::d",
-      "kavlan-12": "2001:660:4406:2a0:405:0::d",
-      "kavlan-13": "2001:660:4406:4a0:405:0::d",
-      "kavlan-14": "2001:660:4406:5a0:405:0::d",
-      "kavlan-16": "2001:660:4406:7a0:405:0::d",
-      "kavlan-18": "2001:660:4406:8a0:405:0::d",
-      "kavlan-2": "2001:660:4406:481:5:0::d",
-      "kavlan-20": "2001:660:4406:3a0:405:0::d",
-      "kavlan-21": "2001:660:4406:6a0:405:0::d",
-      "kavlan-3": "2001:660:4406:482:5:0::d",
-      "kavlan-4": "2001:660:4406:490:5:0::d",
-      "kavlan-5": "2001:660:4406:491:5:0::d",
-      "kavlan-6": "2001:660:4406:492:5:0::d",
-      "kavlan-7": "2001:660:4406:493:5:0::d",
-      "kavlan-8": "2001:660:4406:494:5:0::d",
-      "kavlan-9": "2001:660:4406:495:5:0::d"
+      "kavlan-1": "2001:660:4406:480:5::d",
+      "kavlan-11": "2001:660:4406:1a0:405::d",
+      "kavlan-12": "2001:660:4406:2a0:405::d",
+      "kavlan-13": "2001:660:4406:4a0:405::d",
+      "kavlan-14": "2001:660:4406:5a0:405::d",
+      "kavlan-16": "2001:660:4406:7a0:405::d",
+      "kavlan-18": "2001:660:4406:8a0:405::d",
+      "kavlan-2": "2001:660:4406:481:5::d",
+      "kavlan-20": "2001:660:4406:3a0:405::d",
+      "kavlan-21": "2001:660:4406:6a0:405::d",
+      "kavlan-3": "2001:660:4406:482:5::d",
+      "kavlan-4": "2001:660:4406:490:5::d",
+      "kavlan-5": "2001:660:4406:491:5::d",
+      "kavlan-6": "2001:660:4406:492:5::d",
+      "kavlan-7": "2001:660:4406:493:5::d",
+      "kavlan-8": "2001:660:4406:494:5::d",
+      "kavlan-9": "2001:660:4406:495:5::d"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.13",
-      "ip6": "2001:660:4406:400:5:0::d",
+      "ip6": "2001:660:4406:400:5::d",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c2:b0",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-14.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-14.json
index dddeb4a861a5fcd15a7da178077de6f9f4e9f492..5ba02a8196ab80263a460da09437213adf96afe6 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-14.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::e",
-      "kavlan-11": "2001:660:4406:1a0:405:0::e",
-      "kavlan-12": "2001:660:4406:2a0:405:0::e",
-      "kavlan-13": "2001:660:4406:4a0:405:0::e",
-      "kavlan-14": "2001:660:4406:5a0:405:0::e",
-      "kavlan-16": "2001:660:4406:7a0:405:0::e",
-      "kavlan-18": "2001:660:4406:8a0:405:0::e",
-      "kavlan-2": "2001:660:4406:481:5:0::e",
-      "kavlan-20": "2001:660:4406:3a0:405:0::e",
-      "kavlan-21": "2001:660:4406:6a0:405:0::e",
-      "kavlan-3": "2001:660:4406:482:5:0::e",
-      "kavlan-4": "2001:660:4406:490:5:0::e",
-      "kavlan-5": "2001:660:4406:491:5:0::e",
-      "kavlan-6": "2001:660:4406:492:5:0::e",
-      "kavlan-7": "2001:660:4406:493:5:0::e",
-      "kavlan-8": "2001:660:4406:494:5:0::e",
-      "kavlan-9": "2001:660:4406:495:5:0::e"
+      "kavlan-1": "2001:660:4406:480:5::e",
+      "kavlan-11": "2001:660:4406:1a0:405::e",
+      "kavlan-12": "2001:660:4406:2a0:405::e",
+      "kavlan-13": "2001:660:4406:4a0:405::e",
+      "kavlan-14": "2001:660:4406:5a0:405::e",
+      "kavlan-16": "2001:660:4406:7a0:405::e",
+      "kavlan-18": "2001:660:4406:8a0:405::e",
+      "kavlan-2": "2001:660:4406:481:5::e",
+      "kavlan-20": "2001:660:4406:3a0:405::e",
+      "kavlan-21": "2001:660:4406:6a0:405::e",
+      "kavlan-3": "2001:660:4406:482:5::e",
+      "kavlan-4": "2001:660:4406:490:5::e",
+      "kavlan-5": "2001:660:4406:491:5::e",
+      "kavlan-6": "2001:660:4406:492:5::e",
+      "kavlan-7": "2001:660:4406:493:5::e",
+      "kavlan-8": "2001:660:4406:494:5::e",
+      "kavlan-9": "2001:660:4406:495:5::e"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.14",
-      "ip6": "2001:660:4406:400:5:0::e",
+      "ip6": "2001:660:4406:400:5::e",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c6:54",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-15.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-15.json
index f635fe0c143cfde9375f11e584d84f2bf13532be..49f915ae8f001ed46b72b5d07d04d630f3bb78fe 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-15.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::f",
-      "kavlan-11": "2001:660:4406:1a0:405:0::f",
-      "kavlan-12": "2001:660:4406:2a0:405:0::f",
-      "kavlan-13": "2001:660:4406:4a0:405:0::f",
-      "kavlan-14": "2001:660:4406:5a0:405:0::f",
-      "kavlan-16": "2001:660:4406:7a0:405:0::f",
-      "kavlan-18": "2001:660:4406:8a0:405:0::f",
-      "kavlan-2": "2001:660:4406:481:5:0::f",
-      "kavlan-20": "2001:660:4406:3a0:405:0::f",
-      "kavlan-21": "2001:660:4406:6a0:405:0::f",
-      "kavlan-3": "2001:660:4406:482:5:0::f",
-      "kavlan-4": "2001:660:4406:490:5:0::f",
-      "kavlan-5": "2001:660:4406:491:5:0::f",
-      "kavlan-6": "2001:660:4406:492:5:0::f",
-      "kavlan-7": "2001:660:4406:493:5:0::f",
-      "kavlan-8": "2001:660:4406:494:5:0::f",
-      "kavlan-9": "2001:660:4406:495:5:0::f"
+      "kavlan-1": "2001:660:4406:480:5::f",
+      "kavlan-11": "2001:660:4406:1a0:405::f",
+      "kavlan-12": "2001:660:4406:2a0:405::f",
+      "kavlan-13": "2001:660:4406:4a0:405::f",
+      "kavlan-14": "2001:660:4406:5a0:405::f",
+      "kavlan-16": "2001:660:4406:7a0:405::f",
+      "kavlan-18": "2001:660:4406:8a0:405::f",
+      "kavlan-2": "2001:660:4406:481:5::f",
+      "kavlan-20": "2001:660:4406:3a0:405::f",
+      "kavlan-21": "2001:660:4406:6a0:405::f",
+      "kavlan-3": "2001:660:4406:482:5::f",
+      "kavlan-4": "2001:660:4406:490:5::f",
+      "kavlan-5": "2001:660:4406:491:5::f",
+      "kavlan-6": "2001:660:4406:492:5::f",
+      "kavlan-7": "2001:660:4406:493:5::f",
+      "kavlan-8": "2001:660:4406:494:5::f",
+      "kavlan-9": "2001:660:4406:495:5::f"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.15",
-      "ip6": "2001:660:4406:400:5:0::f",
+      "ip6": "2001:660:4406:400:5::f",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c2:5c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-16.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-16.json
index 622e508d8727a306dcd042a50f6b8fc37212edbd..fa69df4150cf77947358caf8e5f5d30ff0ae79be 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-16.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::10",
-      "kavlan-11": "2001:660:4406:1a0:405:0::10",
-      "kavlan-12": "2001:660:4406:2a0:405:0::10",
-      "kavlan-13": "2001:660:4406:4a0:405:0::10",
-      "kavlan-14": "2001:660:4406:5a0:405:0::10",
-      "kavlan-16": "2001:660:4406:7a0:405:0::10",
-      "kavlan-18": "2001:660:4406:8a0:405:0::10",
-      "kavlan-2": "2001:660:4406:481:5:0::10",
-      "kavlan-20": "2001:660:4406:3a0:405:0::10",
-      "kavlan-21": "2001:660:4406:6a0:405:0::10",
-      "kavlan-3": "2001:660:4406:482:5:0::10",
-      "kavlan-4": "2001:660:4406:490:5:0::10",
-      "kavlan-5": "2001:660:4406:491:5:0::10",
-      "kavlan-6": "2001:660:4406:492:5:0::10",
-      "kavlan-7": "2001:660:4406:493:5:0::10",
-      "kavlan-8": "2001:660:4406:494:5:0::10",
-      "kavlan-9": "2001:660:4406:495:5:0::10"
+      "kavlan-1": "2001:660:4406:480:5::10",
+      "kavlan-11": "2001:660:4406:1a0:405::10",
+      "kavlan-12": "2001:660:4406:2a0:405::10",
+      "kavlan-13": "2001:660:4406:4a0:405::10",
+      "kavlan-14": "2001:660:4406:5a0:405::10",
+      "kavlan-16": "2001:660:4406:7a0:405::10",
+      "kavlan-18": "2001:660:4406:8a0:405::10",
+      "kavlan-2": "2001:660:4406:481:5::10",
+      "kavlan-20": "2001:660:4406:3a0:405::10",
+      "kavlan-21": "2001:660:4406:6a0:405::10",
+      "kavlan-3": "2001:660:4406:482:5::10",
+      "kavlan-4": "2001:660:4406:490:5::10",
+      "kavlan-5": "2001:660:4406:491:5::10",
+      "kavlan-6": "2001:660:4406:492:5::10",
+      "kavlan-7": "2001:660:4406:493:5::10",
+      "kavlan-8": "2001:660:4406:494:5::10",
+      "kavlan-9": "2001:660:4406:495:5::10"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.16",
-      "ip6": "2001:660:4406:400:5:0::10",
+      "ip6": "2001:660:4406:400:5::10",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c6:60",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-17.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-17.json
index 6e418099361e6cda25740215f79ea71f80f90f2a..55e2c4f778a7c93b9b1b6602d0eba684d7777338 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-17.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-17.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::11",
-      "kavlan-11": "2001:660:4406:1a0:405:0::11",
-      "kavlan-12": "2001:660:4406:2a0:405:0::11",
-      "kavlan-13": "2001:660:4406:4a0:405:0::11",
-      "kavlan-14": "2001:660:4406:5a0:405:0::11",
-      "kavlan-16": "2001:660:4406:7a0:405:0::11",
-      "kavlan-18": "2001:660:4406:8a0:405:0::11",
-      "kavlan-2": "2001:660:4406:481:5:0::11",
-      "kavlan-20": "2001:660:4406:3a0:405:0::11",
-      "kavlan-21": "2001:660:4406:6a0:405:0::11",
-      "kavlan-3": "2001:660:4406:482:5:0::11",
-      "kavlan-4": "2001:660:4406:490:5:0::11",
-      "kavlan-5": "2001:660:4406:491:5:0::11",
-      "kavlan-6": "2001:660:4406:492:5:0::11",
-      "kavlan-7": "2001:660:4406:493:5:0::11",
-      "kavlan-8": "2001:660:4406:494:5:0::11",
-      "kavlan-9": "2001:660:4406:495:5:0::11"
+      "kavlan-1": "2001:660:4406:480:5::11",
+      "kavlan-11": "2001:660:4406:1a0:405::11",
+      "kavlan-12": "2001:660:4406:2a0:405::11",
+      "kavlan-13": "2001:660:4406:4a0:405::11",
+      "kavlan-14": "2001:660:4406:5a0:405::11",
+      "kavlan-16": "2001:660:4406:7a0:405::11",
+      "kavlan-18": "2001:660:4406:8a0:405::11",
+      "kavlan-2": "2001:660:4406:481:5::11",
+      "kavlan-20": "2001:660:4406:3a0:405::11",
+      "kavlan-21": "2001:660:4406:6a0:405::11",
+      "kavlan-3": "2001:660:4406:482:5::11",
+      "kavlan-4": "2001:660:4406:490:5::11",
+      "kavlan-5": "2001:660:4406:491:5::11",
+      "kavlan-6": "2001:660:4406:492:5::11",
+      "kavlan-7": "2001:660:4406:493:5::11",
+      "kavlan-8": "2001:660:4406:494:5::11",
+      "kavlan-9": "2001:660:4406:495:5::11"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.17",
-      "ip6": "2001:660:4406:400:5:0::11",
+      "ip6": "2001:660:4406:400:5::11",
       "kavlan": true,
       "mac": "a0:36:9f:d2:a2:5c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-18.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-18.json
index 48f3dd41aa657f0abd4b1753f1eb2645a1b2d41a..dbf8b4116960ae85a57a5618c7a8935691d987f9 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-18.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-18.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::12",
-      "kavlan-11": "2001:660:4406:1a0:405:0::12",
-      "kavlan-12": "2001:660:4406:2a0:405:0::12",
-      "kavlan-13": "2001:660:4406:4a0:405:0::12",
-      "kavlan-14": "2001:660:4406:5a0:405:0::12",
-      "kavlan-16": "2001:660:4406:7a0:405:0::12",
-      "kavlan-18": "2001:660:4406:8a0:405:0::12",
-      "kavlan-2": "2001:660:4406:481:5:0::12",
-      "kavlan-20": "2001:660:4406:3a0:405:0::12",
-      "kavlan-21": "2001:660:4406:6a0:405:0::12",
-      "kavlan-3": "2001:660:4406:482:5:0::12",
-      "kavlan-4": "2001:660:4406:490:5:0::12",
-      "kavlan-5": "2001:660:4406:491:5:0::12",
-      "kavlan-6": "2001:660:4406:492:5:0::12",
-      "kavlan-7": "2001:660:4406:493:5:0::12",
-      "kavlan-8": "2001:660:4406:494:5:0::12",
-      "kavlan-9": "2001:660:4406:495:5:0::12"
+      "kavlan-1": "2001:660:4406:480:5::12",
+      "kavlan-11": "2001:660:4406:1a0:405::12",
+      "kavlan-12": "2001:660:4406:2a0:405::12",
+      "kavlan-13": "2001:660:4406:4a0:405::12",
+      "kavlan-14": "2001:660:4406:5a0:405::12",
+      "kavlan-16": "2001:660:4406:7a0:405::12",
+      "kavlan-18": "2001:660:4406:8a0:405::12",
+      "kavlan-2": "2001:660:4406:481:5::12",
+      "kavlan-20": "2001:660:4406:3a0:405::12",
+      "kavlan-21": "2001:660:4406:6a0:405::12",
+      "kavlan-3": "2001:660:4406:482:5::12",
+      "kavlan-4": "2001:660:4406:490:5::12",
+      "kavlan-5": "2001:660:4406:491:5::12",
+      "kavlan-6": "2001:660:4406:492:5::12",
+      "kavlan-7": "2001:660:4406:493:5::12",
+      "kavlan-8": "2001:660:4406:494:5::12",
+      "kavlan-9": "2001:660:4406:495:5::12"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.18",
-      "ip6": "2001:660:4406:400:5:0::12",
+      "ip6": "2001:660:4406:400:5::12",
       "kavlan": true,
       "mac": "a0:36:9f:d2:a2:50",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-19.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-19.json
index de1e6ee02614e8bf7acaf23b21155f0873da3b19..51b64b83c67b64d301a0ff028d3414efb16863ce 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-19.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-19.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::13",
-      "kavlan-11": "2001:660:4406:1a0:405:0::13",
-      "kavlan-12": "2001:660:4406:2a0:405:0::13",
-      "kavlan-13": "2001:660:4406:4a0:405:0::13",
-      "kavlan-14": "2001:660:4406:5a0:405:0::13",
-      "kavlan-16": "2001:660:4406:7a0:405:0::13",
-      "kavlan-18": "2001:660:4406:8a0:405:0::13",
-      "kavlan-2": "2001:660:4406:481:5:0::13",
-      "kavlan-20": "2001:660:4406:3a0:405:0::13",
-      "kavlan-21": "2001:660:4406:6a0:405:0::13",
-      "kavlan-3": "2001:660:4406:482:5:0::13",
-      "kavlan-4": "2001:660:4406:490:5:0::13",
-      "kavlan-5": "2001:660:4406:491:5:0::13",
-      "kavlan-6": "2001:660:4406:492:5:0::13",
-      "kavlan-7": "2001:660:4406:493:5:0::13",
-      "kavlan-8": "2001:660:4406:494:5:0::13",
-      "kavlan-9": "2001:660:4406:495:5:0::13"
+      "kavlan-1": "2001:660:4406:480:5::13",
+      "kavlan-11": "2001:660:4406:1a0:405::13",
+      "kavlan-12": "2001:660:4406:2a0:405::13",
+      "kavlan-13": "2001:660:4406:4a0:405::13",
+      "kavlan-14": "2001:660:4406:5a0:405::13",
+      "kavlan-16": "2001:660:4406:7a0:405::13",
+      "kavlan-18": "2001:660:4406:8a0:405::13",
+      "kavlan-2": "2001:660:4406:481:5::13",
+      "kavlan-20": "2001:660:4406:3a0:405::13",
+      "kavlan-21": "2001:660:4406:6a0:405::13",
+      "kavlan-3": "2001:660:4406:482:5::13",
+      "kavlan-4": "2001:660:4406:490:5::13",
+      "kavlan-5": "2001:660:4406:491:5::13",
+      "kavlan-6": "2001:660:4406:492:5::13",
+      "kavlan-7": "2001:660:4406:493:5::13",
+      "kavlan-8": "2001:660:4406:494:5::13",
+      "kavlan-9": "2001:660:4406:495:5::13"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.19",
-      "ip6": "2001:660:4406:400:5:0::13",
+      "ip6": "2001:660:4406:400:5::13",
       "kavlan": true,
       "mac": "a0:36:9f:d2:ca:58",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-2.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-2.json
index 84f25feaa21fde827e4193bd3a9fbe1967b206ae..52f39440071c6eb99fd82a776ad0a26967624560 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-2.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::2",
-      "kavlan-11": "2001:660:4406:1a0:405:0::2",
-      "kavlan-12": "2001:660:4406:2a0:405:0::2",
-      "kavlan-13": "2001:660:4406:4a0:405:0::2",
-      "kavlan-14": "2001:660:4406:5a0:405:0::2",
-      "kavlan-16": "2001:660:4406:7a0:405:0::2",
-      "kavlan-18": "2001:660:4406:8a0:405:0::2",
-      "kavlan-2": "2001:660:4406:481:5:0::2",
-      "kavlan-20": "2001:660:4406:3a0:405:0::2",
-      "kavlan-21": "2001:660:4406:6a0:405:0::2",
-      "kavlan-3": "2001:660:4406:482:5:0::2",
-      "kavlan-4": "2001:660:4406:490:5:0::2",
-      "kavlan-5": "2001:660:4406:491:5:0::2",
-      "kavlan-6": "2001:660:4406:492:5:0::2",
-      "kavlan-7": "2001:660:4406:493:5:0::2",
-      "kavlan-8": "2001:660:4406:494:5:0::2",
-      "kavlan-9": "2001:660:4406:495:5:0::2"
+      "kavlan-1": "2001:660:4406:480:5::2",
+      "kavlan-11": "2001:660:4406:1a0:405::2",
+      "kavlan-12": "2001:660:4406:2a0:405::2",
+      "kavlan-13": "2001:660:4406:4a0:405::2",
+      "kavlan-14": "2001:660:4406:5a0:405::2",
+      "kavlan-16": "2001:660:4406:7a0:405::2",
+      "kavlan-18": "2001:660:4406:8a0:405::2",
+      "kavlan-2": "2001:660:4406:481:5::2",
+      "kavlan-20": "2001:660:4406:3a0:405::2",
+      "kavlan-21": "2001:660:4406:6a0:405::2",
+      "kavlan-3": "2001:660:4406:482:5::2",
+      "kavlan-4": "2001:660:4406:490:5::2",
+      "kavlan-5": "2001:660:4406:491:5::2",
+      "kavlan-6": "2001:660:4406:492:5::2",
+      "kavlan-7": "2001:660:4406:493:5::2",
+      "kavlan-8": "2001:660:4406:494:5::2",
+      "kavlan-9": "2001:660:4406:495:5::2"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.2",
-      "ip6": "2001:660:4406:400:5:0::2",
+      "ip6": "2001:660:4406:400:5::2",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c8:8c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-20.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-20.json
index 35e6fd6b54c67eb5d0d3ff3a503e0107bb91d5e6..24f6b9532c59e265d9b2f2eae332ecbd53926589 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-20.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-20.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::14",
-      "kavlan-11": "2001:660:4406:1a0:405:0::14",
-      "kavlan-12": "2001:660:4406:2a0:405:0::14",
-      "kavlan-13": "2001:660:4406:4a0:405:0::14",
-      "kavlan-14": "2001:660:4406:5a0:405:0::14",
-      "kavlan-16": "2001:660:4406:7a0:405:0::14",
-      "kavlan-18": "2001:660:4406:8a0:405:0::14",
-      "kavlan-2": "2001:660:4406:481:5:0::14",
-      "kavlan-20": "2001:660:4406:3a0:405:0::14",
-      "kavlan-21": "2001:660:4406:6a0:405:0::14",
-      "kavlan-3": "2001:660:4406:482:5:0::14",
-      "kavlan-4": "2001:660:4406:490:5:0::14",
-      "kavlan-5": "2001:660:4406:491:5:0::14",
-      "kavlan-6": "2001:660:4406:492:5:0::14",
-      "kavlan-7": "2001:660:4406:493:5:0::14",
-      "kavlan-8": "2001:660:4406:494:5:0::14",
-      "kavlan-9": "2001:660:4406:495:5:0::14"
+      "kavlan-1": "2001:660:4406:480:5::14",
+      "kavlan-11": "2001:660:4406:1a0:405::14",
+      "kavlan-12": "2001:660:4406:2a0:405::14",
+      "kavlan-13": "2001:660:4406:4a0:405::14",
+      "kavlan-14": "2001:660:4406:5a0:405::14",
+      "kavlan-16": "2001:660:4406:7a0:405::14",
+      "kavlan-18": "2001:660:4406:8a0:405::14",
+      "kavlan-2": "2001:660:4406:481:5::14",
+      "kavlan-20": "2001:660:4406:3a0:405::14",
+      "kavlan-21": "2001:660:4406:6a0:405::14",
+      "kavlan-3": "2001:660:4406:482:5::14",
+      "kavlan-4": "2001:660:4406:490:5::14",
+      "kavlan-5": "2001:660:4406:491:5::14",
+      "kavlan-6": "2001:660:4406:492:5::14",
+      "kavlan-7": "2001:660:4406:493:5::14",
+      "kavlan-8": "2001:660:4406:494:5::14",
+      "kavlan-9": "2001:660:4406:495:5::14"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.20",
-      "ip6": "2001:660:4406:400:5:0::14",
+      "ip6": "2001:660:4406:400:5::14",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c6:4c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-21.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-21.json
index c548f83cf1589931861986231b455df002a0d4ca..1d0f1a20287b787cb43c1a61f19a0c3eaf4a53a1 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-21.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-21.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::15",
-      "kavlan-11": "2001:660:4406:1a0:405:0::15",
-      "kavlan-12": "2001:660:4406:2a0:405:0::15",
-      "kavlan-13": "2001:660:4406:4a0:405:0::15",
-      "kavlan-14": "2001:660:4406:5a0:405:0::15",
-      "kavlan-16": "2001:660:4406:7a0:405:0::15",
-      "kavlan-18": "2001:660:4406:8a0:405:0::15",
-      "kavlan-2": "2001:660:4406:481:5:0::15",
-      "kavlan-20": "2001:660:4406:3a0:405:0::15",
-      "kavlan-21": "2001:660:4406:6a0:405:0::15",
-      "kavlan-3": "2001:660:4406:482:5:0::15",
-      "kavlan-4": "2001:660:4406:490:5:0::15",
-      "kavlan-5": "2001:660:4406:491:5:0::15",
-      "kavlan-6": "2001:660:4406:492:5:0::15",
-      "kavlan-7": "2001:660:4406:493:5:0::15",
-      "kavlan-8": "2001:660:4406:494:5:0::15",
-      "kavlan-9": "2001:660:4406:495:5:0::15"
+      "kavlan-1": "2001:660:4406:480:5::15",
+      "kavlan-11": "2001:660:4406:1a0:405::15",
+      "kavlan-12": "2001:660:4406:2a0:405::15",
+      "kavlan-13": "2001:660:4406:4a0:405::15",
+      "kavlan-14": "2001:660:4406:5a0:405::15",
+      "kavlan-16": "2001:660:4406:7a0:405::15",
+      "kavlan-18": "2001:660:4406:8a0:405::15",
+      "kavlan-2": "2001:660:4406:481:5::15",
+      "kavlan-20": "2001:660:4406:3a0:405::15",
+      "kavlan-21": "2001:660:4406:6a0:405::15",
+      "kavlan-3": "2001:660:4406:482:5::15",
+      "kavlan-4": "2001:660:4406:490:5::15",
+      "kavlan-5": "2001:660:4406:491:5::15",
+      "kavlan-6": "2001:660:4406:492:5::15",
+      "kavlan-7": "2001:660:4406:493:5::15",
+      "kavlan-8": "2001:660:4406:494:5::15",
+      "kavlan-9": "2001:660:4406:495:5::15"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.21",
-      "ip6": "2001:660:4406:400:5:0::15",
+      "ip6": "2001:660:4406:400:5::15",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c6:18",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-22.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-22.json
index 49cc0646738366264fbc1c7d0ecacaa1c71842a3..9c4b848b36c9b95d3c8ba0e1117806f0bb9fc228 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-22.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-22.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::16",
-      "kavlan-11": "2001:660:4406:1a0:405:0::16",
-      "kavlan-12": "2001:660:4406:2a0:405:0::16",
-      "kavlan-13": "2001:660:4406:4a0:405:0::16",
-      "kavlan-14": "2001:660:4406:5a0:405:0::16",
-      "kavlan-16": "2001:660:4406:7a0:405:0::16",
-      "kavlan-18": "2001:660:4406:8a0:405:0::16",
-      "kavlan-2": "2001:660:4406:481:5:0::16",
-      "kavlan-20": "2001:660:4406:3a0:405:0::16",
-      "kavlan-21": "2001:660:4406:6a0:405:0::16",
-      "kavlan-3": "2001:660:4406:482:5:0::16",
-      "kavlan-4": "2001:660:4406:490:5:0::16",
-      "kavlan-5": "2001:660:4406:491:5:0::16",
-      "kavlan-6": "2001:660:4406:492:5:0::16",
-      "kavlan-7": "2001:660:4406:493:5:0::16",
-      "kavlan-8": "2001:660:4406:494:5:0::16",
-      "kavlan-9": "2001:660:4406:495:5:0::16"
+      "kavlan-1": "2001:660:4406:480:5::16",
+      "kavlan-11": "2001:660:4406:1a0:405::16",
+      "kavlan-12": "2001:660:4406:2a0:405::16",
+      "kavlan-13": "2001:660:4406:4a0:405::16",
+      "kavlan-14": "2001:660:4406:5a0:405::16",
+      "kavlan-16": "2001:660:4406:7a0:405::16",
+      "kavlan-18": "2001:660:4406:8a0:405::16",
+      "kavlan-2": "2001:660:4406:481:5::16",
+      "kavlan-20": "2001:660:4406:3a0:405::16",
+      "kavlan-21": "2001:660:4406:6a0:405::16",
+      "kavlan-3": "2001:660:4406:482:5::16",
+      "kavlan-4": "2001:660:4406:490:5::16",
+      "kavlan-5": "2001:660:4406:491:5::16",
+      "kavlan-6": "2001:660:4406:492:5::16",
+      "kavlan-7": "2001:660:4406:493:5::16",
+      "kavlan-8": "2001:660:4406:494:5::16",
+      "kavlan-9": "2001:660:4406:495:5::16"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.22",
-      "ip6": "2001:660:4406:400:5:0::16",
+      "ip6": "2001:660:4406:400:5::16",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c6:48",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-23.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-23.json
index f2145ea70fb97ad1da729654fe099cd5bd1aa4f9..168fda14783d104d691a1bee9eb77940523393c2 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-23.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-23.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::17",
-      "kavlan-11": "2001:660:4406:1a0:405:0::17",
-      "kavlan-12": "2001:660:4406:2a0:405:0::17",
-      "kavlan-13": "2001:660:4406:4a0:405:0::17",
-      "kavlan-14": "2001:660:4406:5a0:405:0::17",
-      "kavlan-16": "2001:660:4406:7a0:405:0::17",
-      "kavlan-18": "2001:660:4406:8a0:405:0::17",
-      "kavlan-2": "2001:660:4406:481:5:0::17",
-      "kavlan-20": "2001:660:4406:3a0:405:0::17",
-      "kavlan-21": "2001:660:4406:6a0:405:0::17",
-      "kavlan-3": "2001:660:4406:482:5:0::17",
-      "kavlan-4": "2001:660:4406:490:5:0::17",
-      "kavlan-5": "2001:660:4406:491:5:0::17",
-      "kavlan-6": "2001:660:4406:492:5:0::17",
-      "kavlan-7": "2001:660:4406:493:5:0::17",
-      "kavlan-8": "2001:660:4406:494:5:0::17",
-      "kavlan-9": "2001:660:4406:495:5:0::17"
+      "kavlan-1": "2001:660:4406:480:5::17",
+      "kavlan-11": "2001:660:4406:1a0:405::17",
+      "kavlan-12": "2001:660:4406:2a0:405::17",
+      "kavlan-13": "2001:660:4406:4a0:405::17",
+      "kavlan-14": "2001:660:4406:5a0:405::17",
+      "kavlan-16": "2001:660:4406:7a0:405::17",
+      "kavlan-18": "2001:660:4406:8a0:405::17",
+      "kavlan-2": "2001:660:4406:481:5::17",
+      "kavlan-20": "2001:660:4406:3a0:405::17",
+      "kavlan-21": "2001:660:4406:6a0:405::17",
+      "kavlan-3": "2001:660:4406:482:5::17",
+      "kavlan-4": "2001:660:4406:490:5::17",
+      "kavlan-5": "2001:660:4406:491:5::17",
+      "kavlan-6": "2001:660:4406:492:5::17",
+      "kavlan-7": "2001:660:4406:493:5::17",
+      "kavlan-8": "2001:660:4406:494:5::17",
+      "kavlan-9": "2001:660:4406:495:5::17"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.23",
-      "ip6": "2001:660:4406:400:5:0::17",
+      "ip6": "2001:660:4406:400:5::17",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c2:44",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-3.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-3.json
index 66b9a13d9a90990061f4e24384a4b367eadf8fbb..f2ee3eab91bfc285d2933f6a6b79fcae569d38ed 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-3.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::3",
-      "kavlan-11": "2001:660:4406:1a0:405:0::3",
-      "kavlan-12": "2001:660:4406:2a0:405:0::3",
-      "kavlan-13": "2001:660:4406:4a0:405:0::3",
-      "kavlan-14": "2001:660:4406:5a0:405:0::3",
-      "kavlan-16": "2001:660:4406:7a0:405:0::3",
-      "kavlan-18": "2001:660:4406:8a0:405:0::3",
-      "kavlan-2": "2001:660:4406:481:5:0::3",
-      "kavlan-20": "2001:660:4406:3a0:405:0::3",
-      "kavlan-21": "2001:660:4406:6a0:405:0::3",
-      "kavlan-3": "2001:660:4406:482:5:0::3",
-      "kavlan-4": "2001:660:4406:490:5:0::3",
-      "kavlan-5": "2001:660:4406:491:5:0::3",
-      "kavlan-6": "2001:660:4406:492:5:0::3",
-      "kavlan-7": "2001:660:4406:493:5:0::3",
-      "kavlan-8": "2001:660:4406:494:5:0::3",
-      "kavlan-9": "2001:660:4406:495:5:0::3"
+      "kavlan-1": "2001:660:4406:480:5::3",
+      "kavlan-11": "2001:660:4406:1a0:405::3",
+      "kavlan-12": "2001:660:4406:2a0:405::3",
+      "kavlan-13": "2001:660:4406:4a0:405::3",
+      "kavlan-14": "2001:660:4406:5a0:405::3",
+      "kavlan-16": "2001:660:4406:7a0:405::3",
+      "kavlan-18": "2001:660:4406:8a0:405::3",
+      "kavlan-2": "2001:660:4406:481:5::3",
+      "kavlan-20": "2001:660:4406:3a0:405::3",
+      "kavlan-21": "2001:660:4406:6a0:405::3",
+      "kavlan-3": "2001:660:4406:482:5::3",
+      "kavlan-4": "2001:660:4406:490:5::3",
+      "kavlan-5": "2001:660:4406:491:5::3",
+      "kavlan-6": "2001:660:4406:492:5::3",
+      "kavlan-7": "2001:660:4406:493:5::3",
+      "kavlan-8": "2001:660:4406:494:5::3",
+      "kavlan-9": "2001:660:4406:495:5::3"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.3",
-      "ip6": "2001:660:4406:400:5:0::3",
+      "ip6": "2001:660:4406:400:5::3",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c6:94",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-4.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-4.json
index 7ee645d16c3c128643be65577ac25ee7f1cd1b10..7b498020327d2d6a7f8aab211f2933d0131e1770 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-4.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::4",
-      "kavlan-11": "2001:660:4406:1a0:405:0::4",
-      "kavlan-12": "2001:660:4406:2a0:405:0::4",
-      "kavlan-13": "2001:660:4406:4a0:405:0::4",
-      "kavlan-14": "2001:660:4406:5a0:405:0::4",
-      "kavlan-16": "2001:660:4406:7a0:405:0::4",
-      "kavlan-18": "2001:660:4406:8a0:405:0::4",
-      "kavlan-2": "2001:660:4406:481:5:0::4",
-      "kavlan-20": "2001:660:4406:3a0:405:0::4",
-      "kavlan-21": "2001:660:4406:6a0:405:0::4",
-      "kavlan-3": "2001:660:4406:482:5:0::4",
-      "kavlan-4": "2001:660:4406:490:5:0::4",
-      "kavlan-5": "2001:660:4406:491:5:0::4",
-      "kavlan-6": "2001:660:4406:492:5:0::4",
-      "kavlan-7": "2001:660:4406:493:5:0::4",
-      "kavlan-8": "2001:660:4406:494:5:0::4",
-      "kavlan-9": "2001:660:4406:495:5:0::4"
+      "kavlan-1": "2001:660:4406:480:5::4",
+      "kavlan-11": "2001:660:4406:1a0:405::4",
+      "kavlan-12": "2001:660:4406:2a0:405::4",
+      "kavlan-13": "2001:660:4406:4a0:405::4",
+      "kavlan-14": "2001:660:4406:5a0:405::4",
+      "kavlan-16": "2001:660:4406:7a0:405::4",
+      "kavlan-18": "2001:660:4406:8a0:405::4",
+      "kavlan-2": "2001:660:4406:481:5::4",
+      "kavlan-20": "2001:660:4406:3a0:405::4",
+      "kavlan-21": "2001:660:4406:6a0:405::4",
+      "kavlan-3": "2001:660:4406:482:5::4",
+      "kavlan-4": "2001:660:4406:490:5::4",
+      "kavlan-5": "2001:660:4406:491:5::4",
+      "kavlan-6": "2001:660:4406:492:5::4",
+      "kavlan-7": "2001:660:4406:493:5::4",
+      "kavlan-8": "2001:660:4406:494:5::4",
+      "kavlan-9": "2001:660:4406:495:5::4"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.4",
-      "ip6": "2001:660:4406:400:5:0::4",
+      "ip6": "2001:660:4406:400:5::4",
       "kavlan": true,
       "mac": "a0:36:9f:ce:e4:5c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-5.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-5.json
index c8c9a801dcd280b6a22fab6e76982daf522a26d3..5ed2543053e9a0d2a9e9d3260167af7ed637bd24 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-5.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::5",
-      "kavlan-11": "2001:660:4406:1a0:405:0::5",
-      "kavlan-12": "2001:660:4406:2a0:405:0::5",
-      "kavlan-13": "2001:660:4406:4a0:405:0::5",
-      "kavlan-14": "2001:660:4406:5a0:405:0::5",
-      "kavlan-16": "2001:660:4406:7a0:405:0::5",
-      "kavlan-18": "2001:660:4406:8a0:405:0::5",
-      "kavlan-2": "2001:660:4406:481:5:0::5",
-      "kavlan-20": "2001:660:4406:3a0:405:0::5",
-      "kavlan-21": "2001:660:4406:6a0:405:0::5",
-      "kavlan-3": "2001:660:4406:482:5:0::5",
-      "kavlan-4": "2001:660:4406:490:5:0::5",
-      "kavlan-5": "2001:660:4406:491:5:0::5",
-      "kavlan-6": "2001:660:4406:492:5:0::5",
-      "kavlan-7": "2001:660:4406:493:5:0::5",
-      "kavlan-8": "2001:660:4406:494:5:0::5",
-      "kavlan-9": "2001:660:4406:495:5:0::5"
+      "kavlan-1": "2001:660:4406:480:5::5",
+      "kavlan-11": "2001:660:4406:1a0:405::5",
+      "kavlan-12": "2001:660:4406:2a0:405::5",
+      "kavlan-13": "2001:660:4406:4a0:405::5",
+      "kavlan-14": "2001:660:4406:5a0:405::5",
+      "kavlan-16": "2001:660:4406:7a0:405::5",
+      "kavlan-18": "2001:660:4406:8a0:405::5",
+      "kavlan-2": "2001:660:4406:481:5::5",
+      "kavlan-20": "2001:660:4406:3a0:405::5",
+      "kavlan-21": "2001:660:4406:6a0:405::5",
+      "kavlan-3": "2001:660:4406:482:5::5",
+      "kavlan-4": "2001:660:4406:490:5::5",
+      "kavlan-5": "2001:660:4406:491:5::5",
+      "kavlan-6": "2001:660:4406:492:5::5",
+      "kavlan-7": "2001:660:4406:493:5::5",
+      "kavlan-8": "2001:660:4406:494:5::5",
+      "kavlan-9": "2001:660:4406:495:5::5"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.5",
-      "ip6": "2001:660:4406:400:5:0::5",
+      "ip6": "2001:660:4406:400:5::5",
       "kavlan": true,
       "mac": "a0:36:9f:ce:e4:38",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-6.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-6.json
index ee2fe58b703151f90ddf55e6074dfa518f42a603..e93819d639374ea0f55cd2092d2398deddf408de 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-6.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::6",
-      "kavlan-11": "2001:660:4406:1a0:405:0::6",
-      "kavlan-12": "2001:660:4406:2a0:405:0::6",
-      "kavlan-13": "2001:660:4406:4a0:405:0::6",
-      "kavlan-14": "2001:660:4406:5a0:405:0::6",
-      "kavlan-16": "2001:660:4406:7a0:405:0::6",
-      "kavlan-18": "2001:660:4406:8a0:405:0::6",
-      "kavlan-2": "2001:660:4406:481:5:0::6",
-      "kavlan-20": "2001:660:4406:3a0:405:0::6",
-      "kavlan-21": "2001:660:4406:6a0:405:0::6",
-      "kavlan-3": "2001:660:4406:482:5:0::6",
-      "kavlan-4": "2001:660:4406:490:5:0::6",
-      "kavlan-5": "2001:660:4406:491:5:0::6",
-      "kavlan-6": "2001:660:4406:492:5:0::6",
-      "kavlan-7": "2001:660:4406:493:5:0::6",
-      "kavlan-8": "2001:660:4406:494:5:0::6",
-      "kavlan-9": "2001:660:4406:495:5:0::6"
+      "kavlan-1": "2001:660:4406:480:5::6",
+      "kavlan-11": "2001:660:4406:1a0:405::6",
+      "kavlan-12": "2001:660:4406:2a0:405::6",
+      "kavlan-13": "2001:660:4406:4a0:405::6",
+      "kavlan-14": "2001:660:4406:5a0:405::6",
+      "kavlan-16": "2001:660:4406:7a0:405::6",
+      "kavlan-18": "2001:660:4406:8a0:405::6",
+      "kavlan-2": "2001:660:4406:481:5::6",
+      "kavlan-20": "2001:660:4406:3a0:405::6",
+      "kavlan-21": "2001:660:4406:6a0:405::6",
+      "kavlan-3": "2001:660:4406:482:5::6",
+      "kavlan-4": "2001:660:4406:490:5::6",
+      "kavlan-5": "2001:660:4406:491:5::6",
+      "kavlan-6": "2001:660:4406:492:5::6",
+      "kavlan-7": "2001:660:4406:493:5::6",
+      "kavlan-8": "2001:660:4406:494:5::6",
+      "kavlan-9": "2001:660:4406:495:5::6"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.6",
-      "ip6": "2001:660:4406:400:5:0::6",
+      "ip6": "2001:660:4406:400:5::6",
       "kavlan": true,
       "mac": "a0:36:9f:ce:e4:30",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-7.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-7.json
index d5d122c66d7da8707b7107060685fc1d35186bcb..acd09b3238dbca7e9c3346f8a0d8c1dfeae1f475 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-7.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::7",
-      "kavlan-11": "2001:660:4406:1a0:405:0::7",
-      "kavlan-12": "2001:660:4406:2a0:405:0::7",
-      "kavlan-13": "2001:660:4406:4a0:405:0::7",
-      "kavlan-14": "2001:660:4406:5a0:405:0::7",
-      "kavlan-16": "2001:660:4406:7a0:405:0::7",
-      "kavlan-18": "2001:660:4406:8a0:405:0::7",
-      "kavlan-2": "2001:660:4406:481:5:0::7",
-      "kavlan-20": "2001:660:4406:3a0:405:0::7",
-      "kavlan-21": "2001:660:4406:6a0:405:0::7",
-      "kavlan-3": "2001:660:4406:482:5:0::7",
-      "kavlan-4": "2001:660:4406:490:5:0::7",
-      "kavlan-5": "2001:660:4406:491:5:0::7",
-      "kavlan-6": "2001:660:4406:492:5:0::7",
-      "kavlan-7": "2001:660:4406:493:5:0::7",
-      "kavlan-8": "2001:660:4406:494:5:0::7",
-      "kavlan-9": "2001:660:4406:495:5:0::7"
+      "kavlan-1": "2001:660:4406:480:5::7",
+      "kavlan-11": "2001:660:4406:1a0:405::7",
+      "kavlan-12": "2001:660:4406:2a0:405::7",
+      "kavlan-13": "2001:660:4406:4a0:405::7",
+      "kavlan-14": "2001:660:4406:5a0:405::7",
+      "kavlan-16": "2001:660:4406:7a0:405::7",
+      "kavlan-18": "2001:660:4406:8a0:405::7",
+      "kavlan-2": "2001:660:4406:481:5::7",
+      "kavlan-20": "2001:660:4406:3a0:405::7",
+      "kavlan-21": "2001:660:4406:6a0:405::7",
+      "kavlan-3": "2001:660:4406:482:5::7",
+      "kavlan-4": "2001:660:4406:490:5::7",
+      "kavlan-5": "2001:660:4406:491:5::7",
+      "kavlan-6": "2001:660:4406:492:5::7",
+      "kavlan-7": "2001:660:4406:493:5::7",
+      "kavlan-8": "2001:660:4406:494:5::7",
+      "kavlan-9": "2001:660:4406:495:5::7"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.7",
-      "ip6": "2001:660:4406:400:5:0::7",
+      "ip6": "2001:660:4406:400:5::7",
       "kavlan": true,
       "mac": "a0:36:9f:d2:ca:60",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-8.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-8.json
index 3b9e9fda89269668d8d094b679a740245b23321e..9f58b7fc1efe71d65e5d0ffe5cea46f01fadb75f 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-8.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::8",
-      "kavlan-11": "2001:660:4406:1a0:405:0::8",
-      "kavlan-12": "2001:660:4406:2a0:405:0::8",
-      "kavlan-13": "2001:660:4406:4a0:405:0::8",
-      "kavlan-14": "2001:660:4406:5a0:405:0::8",
-      "kavlan-16": "2001:660:4406:7a0:405:0::8",
-      "kavlan-18": "2001:660:4406:8a0:405:0::8",
-      "kavlan-2": "2001:660:4406:481:5:0::8",
-      "kavlan-20": "2001:660:4406:3a0:405:0::8",
-      "kavlan-21": "2001:660:4406:6a0:405:0::8",
-      "kavlan-3": "2001:660:4406:482:5:0::8",
-      "kavlan-4": "2001:660:4406:490:5:0::8",
-      "kavlan-5": "2001:660:4406:491:5:0::8",
-      "kavlan-6": "2001:660:4406:492:5:0::8",
-      "kavlan-7": "2001:660:4406:493:5:0::8",
-      "kavlan-8": "2001:660:4406:494:5:0::8",
-      "kavlan-9": "2001:660:4406:495:5:0::8"
+      "kavlan-1": "2001:660:4406:480:5::8",
+      "kavlan-11": "2001:660:4406:1a0:405::8",
+      "kavlan-12": "2001:660:4406:2a0:405::8",
+      "kavlan-13": "2001:660:4406:4a0:405::8",
+      "kavlan-14": "2001:660:4406:5a0:405::8",
+      "kavlan-16": "2001:660:4406:7a0:405::8",
+      "kavlan-18": "2001:660:4406:8a0:405::8",
+      "kavlan-2": "2001:660:4406:481:5::8",
+      "kavlan-20": "2001:660:4406:3a0:405::8",
+      "kavlan-21": "2001:660:4406:6a0:405::8",
+      "kavlan-3": "2001:660:4406:482:5::8",
+      "kavlan-4": "2001:660:4406:490:5::8",
+      "kavlan-5": "2001:660:4406:491:5::8",
+      "kavlan-6": "2001:660:4406:492:5::8",
+      "kavlan-7": "2001:660:4406:493:5::8",
+      "kavlan-8": "2001:660:4406:494:5::8",
+      "kavlan-9": "2001:660:4406:495:5::8"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.8",
-      "ip6": "2001:660:4406:400:5:0::8",
+      "ip6": "2001:660:4406:400:5::8",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c2:b4",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-9.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-9.json
index 76c54b204aa8c790b2414efd31b55757e3659897..444ae332ad7d83b748ae3d34db8326fcdec32800 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-9.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5:0::9",
-      "kavlan-11": "2001:660:4406:1a0:405:0::9",
-      "kavlan-12": "2001:660:4406:2a0:405:0::9",
-      "kavlan-13": "2001:660:4406:4a0:405:0::9",
-      "kavlan-14": "2001:660:4406:5a0:405:0::9",
-      "kavlan-16": "2001:660:4406:7a0:405:0::9",
-      "kavlan-18": "2001:660:4406:8a0:405:0::9",
-      "kavlan-2": "2001:660:4406:481:5:0::9",
-      "kavlan-20": "2001:660:4406:3a0:405:0::9",
-      "kavlan-21": "2001:660:4406:6a0:405:0::9",
-      "kavlan-3": "2001:660:4406:482:5:0::9",
-      "kavlan-4": "2001:660:4406:490:5:0::9",
-      "kavlan-5": "2001:660:4406:491:5:0::9",
-      "kavlan-6": "2001:660:4406:492:5:0::9",
-      "kavlan-7": "2001:660:4406:493:5:0::9",
-      "kavlan-8": "2001:660:4406:494:5:0::9",
-      "kavlan-9": "2001:660:4406:495:5:0::9"
+      "kavlan-1": "2001:660:4406:480:5::9",
+      "kavlan-11": "2001:660:4406:1a0:405::9",
+      "kavlan-12": "2001:660:4406:2a0:405::9",
+      "kavlan-13": "2001:660:4406:4a0:405::9",
+      "kavlan-14": "2001:660:4406:5a0:405::9",
+      "kavlan-16": "2001:660:4406:7a0:405::9",
+      "kavlan-18": "2001:660:4406:8a0:405::9",
+      "kavlan-2": "2001:660:4406:481:5::9",
+      "kavlan-20": "2001:660:4406:3a0:405::9",
+      "kavlan-21": "2001:660:4406:6a0:405::9",
+      "kavlan-3": "2001:660:4406:482:5::9",
+      "kavlan-4": "2001:660:4406:490:5::9",
+      "kavlan-5": "2001:660:4406:491:5::9",
+      "kavlan-6": "2001:660:4406:492:5::9",
+      "kavlan-7": "2001:660:4406:493:5::9",
+      "kavlan-8": "2001:660:4406:494:5::9",
+      "kavlan-9": "2001:660:4406:495:5::9"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.9",
-      "ip6": "2001:660:4406:400:5:0::9",
+      "ip6": "2001:660:4406:400:5::9",
       "kavlan": true,
       "mac": "a0:36:9f:ce:e4:24",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/orion/nodes/orion-1.json b/data/grid5000/sites/lyon/clusters/orion/nodes/orion-1.json
index da2b749b70101f20fab8ed753d638155e2c906f8..216727df240968b4fb7a23a83a5d549f274c0edc 100644
--- a/data/grid5000/sites/lyon/clusters/orion/nodes/orion-1.json
+++ b/data/grid5000/sites/lyon/clusters/orion/nodes/orion-1.json
@@ -53,23 +53,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:3:0::1",
-      "kavlan-11": "2001:660:4406:1a0:403:0::1",
-      "kavlan-12": "2001:660:4406:2a0:403:0::1",
-      "kavlan-13": "2001:660:4406:4a0:403:0::1",
-      "kavlan-14": "2001:660:4406:5a0:403:0::1",
-      "kavlan-16": "2001:660:4406:7a0:403:0::1",
-      "kavlan-18": "2001:660:4406:8a0:403:0::1",
-      "kavlan-2": "2001:660:4406:481:3:0::1",
-      "kavlan-20": "2001:660:4406:3a0:403:0::1",
-      "kavlan-21": "2001:660:4406:6a0:403:0::1",
-      "kavlan-3": "2001:660:4406:482:3:0::1",
-      "kavlan-4": "2001:660:4406:490:3:0::1",
-      "kavlan-5": "2001:660:4406:491:3:0::1",
-      "kavlan-6": "2001:660:4406:492:3:0::1",
-      "kavlan-7": "2001:660:4406:493:3:0::1",
-      "kavlan-8": "2001:660:4406:494:3:0::1",
-      "kavlan-9": "2001:660:4406:495:3:0::1"
+      "kavlan-1": "2001:660:4406:480:3::1",
+      "kavlan-11": "2001:660:4406:1a0:403::1",
+      "kavlan-12": "2001:660:4406:2a0:403::1",
+      "kavlan-13": "2001:660:4406:4a0:403::1",
+      "kavlan-14": "2001:660:4406:5a0:403::1",
+      "kavlan-16": "2001:660:4406:7a0:403::1",
+      "kavlan-18": "2001:660:4406:8a0:403::1",
+      "kavlan-2": "2001:660:4406:481:3::1",
+      "kavlan-20": "2001:660:4406:3a0:403::1",
+      "kavlan-21": "2001:660:4406:6a0:403::1",
+      "kavlan-3": "2001:660:4406:482:3::1",
+      "kavlan-4": "2001:660:4406:490:3::1",
+      "kavlan-5": "2001:660:4406:491:3::1",
+      "kavlan-6": "2001:660:4406:492:3::1",
+      "kavlan-7": "2001:660:4406:493:3::1",
+      "kavlan-8": "2001:660:4406:494:3::1",
+      "kavlan-9": "2001:660:4406:495:3::1"
     }
   },
   "main_memory": {
@@ -87,7 +87,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.50.1",
-      "ip6": "2001:660:4406:400:3:0::1",
+      "ip6": "2001:660:4406:400:3::1",
       "kavlan": true,
       "mac": "a0:36:9f:08:fa:54",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/orion/nodes/orion-2.json b/data/grid5000/sites/lyon/clusters/orion/nodes/orion-2.json
index 9ae59e5b60e057ea2808da96753587f907759157..e72c36b2589cd6dd908804ed0bc56bad7aa040d7 100644
--- a/data/grid5000/sites/lyon/clusters/orion/nodes/orion-2.json
+++ b/data/grid5000/sites/lyon/clusters/orion/nodes/orion-2.json
@@ -53,23 +53,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:3:0::2",
-      "kavlan-11": "2001:660:4406:1a0:403:0::2",
-      "kavlan-12": "2001:660:4406:2a0:403:0::2",
-      "kavlan-13": "2001:660:4406:4a0:403:0::2",
-      "kavlan-14": "2001:660:4406:5a0:403:0::2",
-      "kavlan-16": "2001:660:4406:7a0:403:0::2",
-      "kavlan-18": "2001:660:4406:8a0:403:0::2",
-      "kavlan-2": "2001:660:4406:481:3:0::2",
-      "kavlan-20": "2001:660:4406:3a0:403:0::2",
-      "kavlan-21": "2001:660:4406:6a0:403:0::2",
-      "kavlan-3": "2001:660:4406:482:3:0::2",
-      "kavlan-4": "2001:660:4406:490:3:0::2",
-      "kavlan-5": "2001:660:4406:491:3:0::2",
-      "kavlan-6": "2001:660:4406:492:3:0::2",
-      "kavlan-7": "2001:660:4406:493:3:0::2",
-      "kavlan-8": "2001:660:4406:494:3:0::2",
-      "kavlan-9": "2001:660:4406:495:3:0::2"
+      "kavlan-1": "2001:660:4406:480:3::2",
+      "kavlan-11": "2001:660:4406:1a0:403::2",
+      "kavlan-12": "2001:660:4406:2a0:403::2",
+      "kavlan-13": "2001:660:4406:4a0:403::2",
+      "kavlan-14": "2001:660:4406:5a0:403::2",
+      "kavlan-16": "2001:660:4406:7a0:403::2",
+      "kavlan-18": "2001:660:4406:8a0:403::2",
+      "kavlan-2": "2001:660:4406:481:3::2",
+      "kavlan-20": "2001:660:4406:3a0:403::2",
+      "kavlan-21": "2001:660:4406:6a0:403::2",
+      "kavlan-3": "2001:660:4406:482:3::2",
+      "kavlan-4": "2001:660:4406:490:3::2",
+      "kavlan-5": "2001:660:4406:491:3::2",
+      "kavlan-6": "2001:660:4406:492:3::2",
+      "kavlan-7": "2001:660:4406:493:3::2",
+      "kavlan-8": "2001:660:4406:494:3::2",
+      "kavlan-9": "2001:660:4406:495:3::2"
     }
   },
   "main_memory": {
@@ -87,7 +87,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.50.2",
-      "ip6": "2001:660:4406:400:3:0::2",
+      "ip6": "2001:660:4406:400:3::2",
       "kavlan": true,
       "mac": "a0:36:9f:08:f6:b8",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/orion/nodes/orion-3.json b/data/grid5000/sites/lyon/clusters/orion/nodes/orion-3.json
index 91575b47587eb760f3bbe5e262e1ca67aa2c4338..79d6c083aaf1e0f1451358fb5e4162ddd8ad44b8 100644
--- a/data/grid5000/sites/lyon/clusters/orion/nodes/orion-3.json
+++ b/data/grid5000/sites/lyon/clusters/orion/nodes/orion-3.json
@@ -53,23 +53,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:3:0::3",
-      "kavlan-11": "2001:660:4406:1a0:403:0::3",
-      "kavlan-12": "2001:660:4406:2a0:403:0::3",
-      "kavlan-13": "2001:660:4406:4a0:403:0::3",
-      "kavlan-14": "2001:660:4406:5a0:403:0::3",
-      "kavlan-16": "2001:660:4406:7a0:403:0::3",
-      "kavlan-18": "2001:660:4406:8a0:403:0::3",
-      "kavlan-2": "2001:660:4406:481:3:0::3",
-      "kavlan-20": "2001:660:4406:3a0:403:0::3",
-      "kavlan-21": "2001:660:4406:6a0:403:0::3",
-      "kavlan-3": "2001:660:4406:482:3:0::3",
-      "kavlan-4": "2001:660:4406:490:3:0::3",
-      "kavlan-5": "2001:660:4406:491:3:0::3",
-      "kavlan-6": "2001:660:4406:492:3:0::3",
-      "kavlan-7": "2001:660:4406:493:3:0::3",
-      "kavlan-8": "2001:660:4406:494:3:0::3",
-      "kavlan-9": "2001:660:4406:495:3:0::3"
+      "kavlan-1": "2001:660:4406:480:3::3",
+      "kavlan-11": "2001:660:4406:1a0:403::3",
+      "kavlan-12": "2001:660:4406:2a0:403::3",
+      "kavlan-13": "2001:660:4406:4a0:403::3",
+      "kavlan-14": "2001:660:4406:5a0:403::3",
+      "kavlan-16": "2001:660:4406:7a0:403::3",
+      "kavlan-18": "2001:660:4406:8a0:403::3",
+      "kavlan-2": "2001:660:4406:481:3::3",
+      "kavlan-20": "2001:660:4406:3a0:403::3",
+      "kavlan-21": "2001:660:4406:6a0:403::3",
+      "kavlan-3": "2001:660:4406:482:3::3",
+      "kavlan-4": "2001:660:4406:490:3::3",
+      "kavlan-5": "2001:660:4406:491:3::3",
+      "kavlan-6": "2001:660:4406:492:3::3",
+      "kavlan-7": "2001:660:4406:493:3::3",
+      "kavlan-8": "2001:660:4406:494:3::3",
+      "kavlan-9": "2001:660:4406:495:3::3"
     }
   },
   "main_memory": {
@@ -87,7 +87,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.50.3",
-      "ip6": "2001:660:4406:400:3:0::3",
+      "ip6": "2001:660:4406:400:3::3",
       "kavlan": true,
       "mac": "a0:36:9f:08:fa:44",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/orion/nodes/orion-4.json b/data/grid5000/sites/lyon/clusters/orion/nodes/orion-4.json
index 344c8d3e9cdd4a5479994dff0a59e773052e0235..a253f5deda5ce0369be3c77ce558096d5265207c 100644
--- a/data/grid5000/sites/lyon/clusters/orion/nodes/orion-4.json
+++ b/data/grid5000/sites/lyon/clusters/orion/nodes/orion-4.json
@@ -53,23 +53,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:3:0::4",
-      "kavlan-11": "2001:660:4406:1a0:403:0::4",
-      "kavlan-12": "2001:660:4406:2a0:403:0::4",
-      "kavlan-13": "2001:660:4406:4a0:403:0::4",
-      "kavlan-14": "2001:660:4406:5a0:403:0::4",
-      "kavlan-16": "2001:660:4406:7a0:403:0::4",
-      "kavlan-18": "2001:660:4406:8a0:403:0::4",
-      "kavlan-2": "2001:660:4406:481:3:0::4",
-      "kavlan-20": "2001:660:4406:3a0:403:0::4",
-      "kavlan-21": "2001:660:4406:6a0:403:0::4",
-      "kavlan-3": "2001:660:4406:482:3:0::4",
-      "kavlan-4": "2001:660:4406:490:3:0::4",
-      "kavlan-5": "2001:660:4406:491:3:0::4",
-      "kavlan-6": "2001:660:4406:492:3:0::4",
-      "kavlan-7": "2001:660:4406:493:3:0::4",
-      "kavlan-8": "2001:660:4406:494:3:0::4",
-      "kavlan-9": "2001:660:4406:495:3:0::4"
+      "kavlan-1": "2001:660:4406:480:3::4",
+      "kavlan-11": "2001:660:4406:1a0:403::4",
+      "kavlan-12": "2001:660:4406:2a0:403::4",
+      "kavlan-13": "2001:660:4406:4a0:403::4",
+      "kavlan-14": "2001:660:4406:5a0:403::4",
+      "kavlan-16": "2001:660:4406:7a0:403::4",
+      "kavlan-18": "2001:660:4406:8a0:403::4",
+      "kavlan-2": "2001:660:4406:481:3::4",
+      "kavlan-20": "2001:660:4406:3a0:403::4",
+      "kavlan-21": "2001:660:4406:6a0:403::4",
+      "kavlan-3": "2001:660:4406:482:3::4",
+      "kavlan-4": "2001:660:4406:490:3::4",
+      "kavlan-5": "2001:660:4406:491:3::4",
+      "kavlan-6": "2001:660:4406:492:3::4",
+      "kavlan-7": "2001:660:4406:493:3::4",
+      "kavlan-8": "2001:660:4406:494:3::4",
+      "kavlan-9": "2001:660:4406:495:3::4"
     }
   },
   "main_memory": {
@@ -87,7 +87,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.50.4",
-      "ip6": "2001:660:4406:400:3:0::4",
+      "ip6": "2001:660:4406:400:3::4",
       "kavlan": true,
       "mac": "a0:36:9f:08:f8:c0",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-1.json b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-1.json
index 144eb1ada8f887ab05448df99e9fabe0847a77cf..ee2c40004c4169ba0c60cfa46c5512655cca5b4c 100644
--- a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-1.json
+++ b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:7:0::1",
-      "kavlan-11": "2001:660:4406:1a0:407:0::1",
-      "kavlan-12": "2001:660:4406:2a0:407:0::1",
-      "kavlan-13": "2001:660:4406:4a0:407:0::1",
-      "kavlan-14": "2001:660:4406:5a0:407:0::1",
-      "kavlan-16": "2001:660:4406:7a0:407:0::1",
-      "kavlan-18": "2001:660:4406:8a0:407:0::1",
-      "kavlan-2": "2001:660:4406:481:7:0::1",
-      "kavlan-20": "2001:660:4406:3a0:407:0::1",
-      "kavlan-21": "2001:660:4406:6a0:407:0::1",
-      "kavlan-3": "2001:660:4406:482:7:0::1",
-      "kavlan-4": "2001:660:4406:490:7:0::1",
-      "kavlan-5": "2001:660:4406:491:7:0::1",
-      "kavlan-6": "2001:660:4406:492:7:0::1",
-      "kavlan-7": "2001:660:4406:493:7:0::1",
-      "kavlan-8": "2001:660:4406:494:7:0::1",
-      "kavlan-9": "2001:660:4406:495:7:0::1"
+      "kavlan-1": "2001:660:4406:480:7::1",
+      "kavlan-11": "2001:660:4406:1a0:407::1",
+      "kavlan-12": "2001:660:4406:2a0:407::1",
+      "kavlan-13": "2001:660:4406:4a0:407::1",
+      "kavlan-14": "2001:660:4406:5a0:407::1",
+      "kavlan-16": "2001:660:4406:7a0:407::1",
+      "kavlan-18": "2001:660:4406:8a0:407::1",
+      "kavlan-2": "2001:660:4406:481:7::1",
+      "kavlan-20": "2001:660:4406:3a0:407::1",
+      "kavlan-21": "2001:660:4406:6a0:407::1",
+      "kavlan-3": "2001:660:4406:482:7::1",
+      "kavlan-4": "2001:660:4406:490:7::1",
+      "kavlan-5": "2001:660:4406:491:7::1",
+      "kavlan-6": "2001:660:4406:492:7::1",
+      "kavlan-7": "2001:660:4406:493:7::1",
+      "kavlan-8": "2001:660:4406:494:7::1",
+      "kavlan-9": "2001:660:4406:495:7::1"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "mfw 8.35.24.0 storm 8.37.2.0",
       "interface": "Ethernet",
       "ip": "172.16.54.1",
-      "ip6": "2001:660:4406:400:7:0::1",
+      "ip6": "2001:660:4406:400:7::1",
       "kavlan": true,
       "mac": "b4:2e:99:3d:1f:40",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-2.json b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-2.json
index 00f451afd202bce8914b9d5634bb4ab663a83a23..356b294d3cb3c5602c4d4ddaa51246f066bfb9ae 100644
--- a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-2.json
+++ b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:7:0::2",
-      "kavlan-11": "2001:660:4406:1a0:407:0::2",
-      "kavlan-12": "2001:660:4406:2a0:407:0::2",
-      "kavlan-13": "2001:660:4406:4a0:407:0::2",
-      "kavlan-14": "2001:660:4406:5a0:407:0::2",
-      "kavlan-16": "2001:660:4406:7a0:407:0::2",
-      "kavlan-18": "2001:660:4406:8a0:407:0::2",
-      "kavlan-2": "2001:660:4406:481:7:0::2",
-      "kavlan-20": "2001:660:4406:3a0:407:0::2",
-      "kavlan-21": "2001:660:4406:6a0:407:0::2",
-      "kavlan-3": "2001:660:4406:482:7:0::2",
-      "kavlan-4": "2001:660:4406:490:7:0::2",
-      "kavlan-5": "2001:660:4406:491:7:0::2",
-      "kavlan-6": "2001:660:4406:492:7:0::2",
-      "kavlan-7": "2001:660:4406:493:7:0::2",
-      "kavlan-8": "2001:660:4406:494:7:0::2",
-      "kavlan-9": "2001:660:4406:495:7:0::2"
+      "kavlan-1": "2001:660:4406:480:7::2",
+      "kavlan-11": "2001:660:4406:1a0:407::2",
+      "kavlan-12": "2001:660:4406:2a0:407::2",
+      "kavlan-13": "2001:660:4406:4a0:407::2",
+      "kavlan-14": "2001:660:4406:5a0:407::2",
+      "kavlan-16": "2001:660:4406:7a0:407::2",
+      "kavlan-18": "2001:660:4406:8a0:407::2",
+      "kavlan-2": "2001:660:4406:481:7::2",
+      "kavlan-20": "2001:660:4406:3a0:407::2",
+      "kavlan-21": "2001:660:4406:6a0:407::2",
+      "kavlan-3": "2001:660:4406:482:7::2",
+      "kavlan-4": "2001:660:4406:490:7::2",
+      "kavlan-5": "2001:660:4406:491:7::2",
+      "kavlan-6": "2001:660:4406:492:7::2",
+      "kavlan-7": "2001:660:4406:493:7::2",
+      "kavlan-8": "2001:660:4406:494:7::2",
+      "kavlan-9": "2001:660:4406:495:7::2"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "mfw 8.35.24.0 storm 8.37.2.0",
       "interface": "Ethernet",
       "ip": "172.16.54.2",
-      "ip6": "2001:660:4406:400:7:0::2",
+      "ip6": "2001:660:4406:400:7::2",
       "kavlan": true,
       "mac": "b4:2e:99:3d:1f:3c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-3.json b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-3.json
index 4d9ee12c66a74f6d1b6d1197a07c5193cca0f405..0c50c5021d8515399cec37cd2c4915f818e7767f 100644
--- a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-3.json
+++ b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:7:0::3",
-      "kavlan-11": "2001:660:4406:1a0:407:0::3",
-      "kavlan-12": "2001:660:4406:2a0:407:0::3",
-      "kavlan-13": "2001:660:4406:4a0:407:0::3",
-      "kavlan-14": "2001:660:4406:5a0:407:0::3",
-      "kavlan-16": "2001:660:4406:7a0:407:0::3",
-      "kavlan-18": "2001:660:4406:8a0:407:0::3",
-      "kavlan-2": "2001:660:4406:481:7:0::3",
-      "kavlan-20": "2001:660:4406:3a0:407:0::3",
-      "kavlan-21": "2001:660:4406:6a0:407:0::3",
-      "kavlan-3": "2001:660:4406:482:7:0::3",
-      "kavlan-4": "2001:660:4406:490:7:0::3",
-      "kavlan-5": "2001:660:4406:491:7:0::3",
-      "kavlan-6": "2001:660:4406:492:7:0::3",
-      "kavlan-7": "2001:660:4406:493:7:0::3",
-      "kavlan-8": "2001:660:4406:494:7:0::3",
-      "kavlan-9": "2001:660:4406:495:7:0::3"
+      "kavlan-1": "2001:660:4406:480:7::3",
+      "kavlan-11": "2001:660:4406:1a0:407::3",
+      "kavlan-12": "2001:660:4406:2a0:407::3",
+      "kavlan-13": "2001:660:4406:4a0:407::3",
+      "kavlan-14": "2001:660:4406:5a0:407::3",
+      "kavlan-16": "2001:660:4406:7a0:407::3",
+      "kavlan-18": "2001:660:4406:8a0:407::3",
+      "kavlan-2": "2001:660:4406:481:7::3",
+      "kavlan-20": "2001:660:4406:3a0:407::3",
+      "kavlan-21": "2001:660:4406:6a0:407::3",
+      "kavlan-3": "2001:660:4406:482:7::3",
+      "kavlan-4": "2001:660:4406:490:7::3",
+      "kavlan-5": "2001:660:4406:491:7::3",
+      "kavlan-6": "2001:660:4406:492:7::3",
+      "kavlan-7": "2001:660:4406:493:7::3",
+      "kavlan-8": "2001:660:4406:494:7::3",
+      "kavlan-9": "2001:660:4406:495:7::3"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "mfw 8.35.24.0 storm 8.37.2.0",
       "interface": "Ethernet",
       "ip": "172.16.54.3",
-      "ip6": "2001:660:4406:400:7:0::3",
+      "ip6": "2001:660:4406:400:7::3",
       "kavlan": true,
       "mac": "b4:2e:99:3d:1e:d0",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-4.json b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-4.json
index 5a0604b94ce3e2a9b4a8927f985ac5d8a7a5324f..ad1fd1fc82c18cf4b5322777cc543e5fc3039d3e 100644
--- a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-4.json
+++ b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:7:0::4",
-      "kavlan-11": "2001:660:4406:1a0:407:0::4",
-      "kavlan-12": "2001:660:4406:2a0:407:0::4",
-      "kavlan-13": "2001:660:4406:4a0:407:0::4",
-      "kavlan-14": "2001:660:4406:5a0:407:0::4",
-      "kavlan-16": "2001:660:4406:7a0:407:0::4",
-      "kavlan-18": "2001:660:4406:8a0:407:0::4",
-      "kavlan-2": "2001:660:4406:481:7:0::4",
-      "kavlan-20": "2001:660:4406:3a0:407:0::4",
-      "kavlan-21": "2001:660:4406:6a0:407:0::4",
-      "kavlan-3": "2001:660:4406:482:7:0::4",
-      "kavlan-4": "2001:660:4406:490:7:0::4",
-      "kavlan-5": "2001:660:4406:491:7:0::4",
-      "kavlan-6": "2001:660:4406:492:7:0::4",
-      "kavlan-7": "2001:660:4406:493:7:0::4",
-      "kavlan-8": "2001:660:4406:494:7:0::4",
-      "kavlan-9": "2001:660:4406:495:7:0::4"
+      "kavlan-1": "2001:660:4406:480:7::4",
+      "kavlan-11": "2001:660:4406:1a0:407::4",
+      "kavlan-12": "2001:660:4406:2a0:407::4",
+      "kavlan-13": "2001:660:4406:4a0:407::4",
+      "kavlan-14": "2001:660:4406:5a0:407::4",
+      "kavlan-16": "2001:660:4406:7a0:407::4",
+      "kavlan-18": "2001:660:4406:8a0:407::4",
+      "kavlan-2": "2001:660:4406:481:7::4",
+      "kavlan-20": "2001:660:4406:3a0:407::4",
+      "kavlan-21": "2001:660:4406:6a0:407::4",
+      "kavlan-3": "2001:660:4406:482:7::4",
+      "kavlan-4": "2001:660:4406:490:7::4",
+      "kavlan-5": "2001:660:4406:491:7::4",
+      "kavlan-6": "2001:660:4406:492:7::4",
+      "kavlan-7": "2001:660:4406:493:7::4",
+      "kavlan-8": "2001:660:4406:494:7::4",
+      "kavlan-9": "2001:660:4406:495:7::4"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "mfw 8.35.24.0 storm 8.37.2.0",
       "interface": "Ethernet",
       "ip": "172.16.54.4",
-      "ip6": "2001:660:4406:400:7:0::4",
+      "ip6": "2001:660:4406:400:7::4",
       "kavlan": true,
       "mac": "b4:2e:99:3d:1e:dc",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-11.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-11.json
index a046f30ba3cf3f0d3c00309588704bf8726f442e..48aaf37f9aabcac8aaef4136962f6dce043ef4bd 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-11.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::b",
-      "kavlan-11": "2001:660:4406:1a0:402:0::b",
-      "kavlan-12": "2001:660:4406:2a0:402:0::b",
-      "kavlan-13": "2001:660:4406:4a0:402:0::b",
-      "kavlan-14": "2001:660:4406:5a0:402:0::b",
-      "kavlan-16": "2001:660:4406:7a0:402:0::b",
-      "kavlan-18": "2001:660:4406:8a0:402:0::b",
-      "kavlan-2": "2001:660:4406:481:2:0::b",
-      "kavlan-20": "2001:660:4406:3a0:402:0::b",
-      "kavlan-21": "2001:660:4406:6a0:402:0::b",
-      "kavlan-3": "2001:660:4406:482:2:0::b",
-      "kavlan-4": "2001:660:4406:490:2:0::b",
-      "kavlan-5": "2001:660:4406:491:2:0::b",
-      "kavlan-6": "2001:660:4406:492:2:0::b",
-      "kavlan-7": "2001:660:4406:493:2:0::b",
-      "kavlan-8": "2001:660:4406:494:2:0::b",
-      "kavlan-9": "2001:660:4406:495:2:0::b"
+      "kavlan-1": "2001:660:4406:480:2::b",
+      "kavlan-11": "2001:660:4406:1a0:402::b",
+      "kavlan-12": "2001:660:4406:2a0:402::b",
+      "kavlan-13": "2001:660:4406:4a0:402::b",
+      "kavlan-14": "2001:660:4406:5a0:402::b",
+      "kavlan-16": "2001:660:4406:7a0:402::b",
+      "kavlan-18": "2001:660:4406:8a0:402::b",
+      "kavlan-2": "2001:660:4406:481:2::b",
+      "kavlan-20": "2001:660:4406:3a0:402::b",
+      "kavlan-21": "2001:660:4406:6a0:402::b",
+      "kavlan-3": "2001:660:4406:482:2::b",
+      "kavlan-4": "2001:660:4406:490:2::b",
+      "kavlan-5": "2001:660:4406:491:2::b",
+      "kavlan-6": "2001:660:4406:492:2::b",
+      "kavlan-7": "2001:660:4406:493:2::b",
+      "kavlan-8": "2001:660:4406:494:2::b",
+      "kavlan-9": "2001:660:4406:495:2::b"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.11",
-      "ip6": "2001:660:4406:400:2:0::b",
+      "ip6": "2001:660:4406:400:2::b",
       "kavlan": true,
       "mac": "00:09:3d:12:9e:07",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-12.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-12.json
index 4e86e9c21e0bb6858461cd93ce789cacc12168bb..0bd500b8f740be9f94514ab4ee14f13943a50bc4 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-12.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::c",
-      "kavlan-11": "2001:660:4406:1a0:402:0::c",
-      "kavlan-12": "2001:660:4406:2a0:402:0::c",
-      "kavlan-13": "2001:660:4406:4a0:402:0::c",
-      "kavlan-14": "2001:660:4406:5a0:402:0::c",
-      "kavlan-16": "2001:660:4406:7a0:402:0::c",
-      "kavlan-18": "2001:660:4406:8a0:402:0::c",
-      "kavlan-2": "2001:660:4406:481:2:0::c",
-      "kavlan-20": "2001:660:4406:3a0:402:0::c",
-      "kavlan-21": "2001:660:4406:6a0:402:0::c",
-      "kavlan-3": "2001:660:4406:482:2:0::c",
-      "kavlan-4": "2001:660:4406:490:2:0::c",
-      "kavlan-5": "2001:660:4406:491:2:0::c",
-      "kavlan-6": "2001:660:4406:492:2:0::c",
-      "kavlan-7": "2001:660:4406:493:2:0::c",
-      "kavlan-8": "2001:660:4406:494:2:0::c",
-      "kavlan-9": "2001:660:4406:495:2:0::c"
+      "kavlan-1": "2001:660:4406:480:2::c",
+      "kavlan-11": "2001:660:4406:1a0:402::c",
+      "kavlan-12": "2001:660:4406:2a0:402::c",
+      "kavlan-13": "2001:660:4406:4a0:402::c",
+      "kavlan-14": "2001:660:4406:5a0:402::c",
+      "kavlan-16": "2001:660:4406:7a0:402::c",
+      "kavlan-18": "2001:660:4406:8a0:402::c",
+      "kavlan-2": "2001:660:4406:481:2::c",
+      "kavlan-20": "2001:660:4406:3a0:402::c",
+      "kavlan-21": "2001:660:4406:6a0:402::c",
+      "kavlan-3": "2001:660:4406:482:2::c",
+      "kavlan-4": "2001:660:4406:490:2::c",
+      "kavlan-5": "2001:660:4406:491:2::c",
+      "kavlan-6": "2001:660:4406:492:2::c",
+      "kavlan-7": "2001:660:4406:493:2::c",
+      "kavlan-8": "2001:660:4406:494:2::c",
+      "kavlan-9": "2001:660:4406:495:2::c"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.12",
-      "ip6": "2001:660:4406:400:2:0::c",
+      "ip6": "2001:660:4406:400:2::c",
       "kavlan": true,
       "mac": "00:09:3d:12:3c:2c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-13.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-13.json
index f11f2b1098600d2b0f48813bb891aa522f0181b4..087da51888c6713c379514d39b41e30866a36453 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-13.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::d",
-      "kavlan-11": "2001:660:4406:1a0:402:0::d",
-      "kavlan-12": "2001:660:4406:2a0:402:0::d",
-      "kavlan-13": "2001:660:4406:4a0:402:0::d",
-      "kavlan-14": "2001:660:4406:5a0:402:0::d",
-      "kavlan-16": "2001:660:4406:7a0:402:0::d",
-      "kavlan-18": "2001:660:4406:8a0:402:0::d",
-      "kavlan-2": "2001:660:4406:481:2:0::d",
-      "kavlan-20": "2001:660:4406:3a0:402:0::d",
-      "kavlan-21": "2001:660:4406:6a0:402:0::d",
-      "kavlan-3": "2001:660:4406:482:2:0::d",
-      "kavlan-4": "2001:660:4406:490:2:0::d",
-      "kavlan-5": "2001:660:4406:491:2:0::d",
-      "kavlan-6": "2001:660:4406:492:2:0::d",
-      "kavlan-7": "2001:660:4406:493:2:0::d",
-      "kavlan-8": "2001:660:4406:494:2:0::d",
-      "kavlan-9": "2001:660:4406:495:2:0::d"
+      "kavlan-1": "2001:660:4406:480:2::d",
+      "kavlan-11": "2001:660:4406:1a0:402::d",
+      "kavlan-12": "2001:660:4406:2a0:402::d",
+      "kavlan-13": "2001:660:4406:4a0:402::d",
+      "kavlan-14": "2001:660:4406:5a0:402::d",
+      "kavlan-16": "2001:660:4406:7a0:402::d",
+      "kavlan-18": "2001:660:4406:8a0:402::d",
+      "kavlan-2": "2001:660:4406:481:2::d",
+      "kavlan-20": "2001:660:4406:3a0:402::d",
+      "kavlan-21": "2001:660:4406:6a0:402::d",
+      "kavlan-3": "2001:660:4406:482:2::d",
+      "kavlan-4": "2001:660:4406:490:2::d",
+      "kavlan-5": "2001:660:4406:491:2::d",
+      "kavlan-6": "2001:660:4406:492:2::d",
+      "kavlan-7": "2001:660:4406:493:2::d",
+      "kavlan-8": "2001:660:4406:494:2::d",
+      "kavlan-9": "2001:660:4406:495:2::d"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.13",
-      "ip6": "2001:660:4406:400:2:0::d",
+      "ip6": "2001:660:4406:400:2::d",
       "kavlan": true,
       "mac": "00:09:3d:12:91:61",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-14.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-14.json
index 528785399769749ddbbb518f2e578fbca95c6241..377c4733738da28eae899aa4c18ba3fea510161c 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-14.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::e",
-      "kavlan-11": "2001:660:4406:1a0:402:0::e",
-      "kavlan-12": "2001:660:4406:2a0:402:0::e",
-      "kavlan-13": "2001:660:4406:4a0:402:0::e",
-      "kavlan-14": "2001:660:4406:5a0:402:0::e",
-      "kavlan-16": "2001:660:4406:7a0:402:0::e",
-      "kavlan-18": "2001:660:4406:8a0:402:0::e",
-      "kavlan-2": "2001:660:4406:481:2:0::e",
-      "kavlan-20": "2001:660:4406:3a0:402:0::e",
-      "kavlan-21": "2001:660:4406:6a0:402:0::e",
-      "kavlan-3": "2001:660:4406:482:2:0::e",
-      "kavlan-4": "2001:660:4406:490:2:0::e",
-      "kavlan-5": "2001:660:4406:491:2:0::e",
-      "kavlan-6": "2001:660:4406:492:2:0::e",
-      "kavlan-7": "2001:660:4406:493:2:0::e",
-      "kavlan-8": "2001:660:4406:494:2:0::e",
-      "kavlan-9": "2001:660:4406:495:2:0::e"
+      "kavlan-1": "2001:660:4406:480:2::e",
+      "kavlan-11": "2001:660:4406:1a0:402::e",
+      "kavlan-12": "2001:660:4406:2a0:402::e",
+      "kavlan-13": "2001:660:4406:4a0:402::e",
+      "kavlan-14": "2001:660:4406:5a0:402::e",
+      "kavlan-16": "2001:660:4406:7a0:402::e",
+      "kavlan-18": "2001:660:4406:8a0:402::e",
+      "kavlan-2": "2001:660:4406:481:2::e",
+      "kavlan-20": "2001:660:4406:3a0:402::e",
+      "kavlan-21": "2001:660:4406:6a0:402::e",
+      "kavlan-3": "2001:660:4406:482:2::e",
+      "kavlan-4": "2001:660:4406:490:2::e",
+      "kavlan-5": "2001:660:4406:491:2::e",
+      "kavlan-6": "2001:660:4406:492:2::e",
+      "kavlan-7": "2001:660:4406:493:2::e",
+      "kavlan-8": "2001:660:4406:494:2::e",
+      "kavlan-9": "2001:660:4406:495:2::e"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.14",
-      "ip6": "2001:660:4406:400:2:0::e",
+      "ip6": "2001:660:4406:400:2::e",
       "kavlan": true,
       "mac": "00:09:3d:12:7a:bd",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-15.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-15.json
index 1efe012d8a1394176229506bc2cbc59765cdfb84..bc55bd56432d786ecc5c99ba441e0ef18d28d129 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-15.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::f",
-      "kavlan-11": "2001:660:4406:1a0:402:0::f",
-      "kavlan-12": "2001:660:4406:2a0:402:0::f",
-      "kavlan-13": "2001:660:4406:4a0:402:0::f",
-      "kavlan-14": "2001:660:4406:5a0:402:0::f",
-      "kavlan-16": "2001:660:4406:7a0:402:0::f",
-      "kavlan-18": "2001:660:4406:8a0:402:0::f",
-      "kavlan-2": "2001:660:4406:481:2:0::f",
-      "kavlan-20": "2001:660:4406:3a0:402:0::f",
-      "kavlan-21": "2001:660:4406:6a0:402:0::f",
-      "kavlan-3": "2001:660:4406:482:2:0::f",
-      "kavlan-4": "2001:660:4406:490:2:0::f",
-      "kavlan-5": "2001:660:4406:491:2:0::f",
-      "kavlan-6": "2001:660:4406:492:2:0::f",
-      "kavlan-7": "2001:660:4406:493:2:0::f",
-      "kavlan-8": "2001:660:4406:494:2:0::f",
-      "kavlan-9": "2001:660:4406:495:2:0::f"
+      "kavlan-1": "2001:660:4406:480:2::f",
+      "kavlan-11": "2001:660:4406:1a0:402::f",
+      "kavlan-12": "2001:660:4406:2a0:402::f",
+      "kavlan-13": "2001:660:4406:4a0:402::f",
+      "kavlan-14": "2001:660:4406:5a0:402::f",
+      "kavlan-16": "2001:660:4406:7a0:402::f",
+      "kavlan-18": "2001:660:4406:8a0:402::f",
+      "kavlan-2": "2001:660:4406:481:2::f",
+      "kavlan-20": "2001:660:4406:3a0:402::f",
+      "kavlan-21": "2001:660:4406:6a0:402::f",
+      "kavlan-3": "2001:660:4406:482:2::f",
+      "kavlan-4": "2001:660:4406:490:2::f",
+      "kavlan-5": "2001:660:4406:491:2::f",
+      "kavlan-6": "2001:660:4406:492:2::f",
+      "kavlan-7": "2001:660:4406:493:2::f",
+      "kavlan-8": "2001:660:4406:494:2::f",
+      "kavlan-9": "2001:660:4406:495:2::f"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.15",
-      "ip6": "2001:660:4406:400:2:0::f",
+      "ip6": "2001:660:4406:400:2::f",
       "kavlan": true,
       "mac": "00:09:3d:12:28:71",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-16.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-16.json
index bd52477568cc3c994a9eab8dbfc24cc0aec80069..0e4720250d06413ce0e6a1a809e5e689f6b91665 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-16.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::10",
-      "kavlan-11": "2001:660:4406:1a0:402:0::10",
-      "kavlan-12": "2001:660:4406:2a0:402:0::10",
-      "kavlan-13": "2001:660:4406:4a0:402:0::10",
-      "kavlan-14": "2001:660:4406:5a0:402:0::10",
-      "kavlan-16": "2001:660:4406:7a0:402:0::10",
-      "kavlan-18": "2001:660:4406:8a0:402:0::10",
-      "kavlan-2": "2001:660:4406:481:2:0::10",
-      "kavlan-20": "2001:660:4406:3a0:402:0::10",
-      "kavlan-21": "2001:660:4406:6a0:402:0::10",
-      "kavlan-3": "2001:660:4406:482:2:0::10",
-      "kavlan-4": "2001:660:4406:490:2:0::10",
-      "kavlan-5": "2001:660:4406:491:2:0::10",
-      "kavlan-6": "2001:660:4406:492:2:0::10",
-      "kavlan-7": "2001:660:4406:493:2:0::10",
-      "kavlan-8": "2001:660:4406:494:2:0::10",
-      "kavlan-9": "2001:660:4406:495:2:0::10"
+      "kavlan-1": "2001:660:4406:480:2::10",
+      "kavlan-11": "2001:660:4406:1a0:402::10",
+      "kavlan-12": "2001:660:4406:2a0:402::10",
+      "kavlan-13": "2001:660:4406:4a0:402::10",
+      "kavlan-14": "2001:660:4406:5a0:402::10",
+      "kavlan-16": "2001:660:4406:7a0:402::10",
+      "kavlan-18": "2001:660:4406:8a0:402::10",
+      "kavlan-2": "2001:660:4406:481:2::10",
+      "kavlan-20": "2001:660:4406:3a0:402::10",
+      "kavlan-21": "2001:660:4406:6a0:402::10",
+      "kavlan-3": "2001:660:4406:482:2::10",
+      "kavlan-4": "2001:660:4406:490:2::10",
+      "kavlan-5": "2001:660:4406:491:2::10",
+      "kavlan-6": "2001:660:4406:492:2::10",
+      "kavlan-7": "2001:660:4406:493:2::10",
+      "kavlan-8": "2001:660:4406:494:2::10",
+      "kavlan-9": "2001:660:4406:495:2::10"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.16",
-      "ip6": "2001:660:4406:400:2:0::10",
+      "ip6": "2001:660:4406:400:2::10",
       "kavlan": true,
       "mac": "00:09:3d:12:7d:07",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-17.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-17.json
index f6f083dccd8ed8db625590c8c8fcfd412441d82a..a32507cc7283dfc78ef458a778d71dc78160a003 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-17.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-17.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::11",
-      "kavlan-11": "2001:660:4406:1a0:402:0::11",
-      "kavlan-12": "2001:660:4406:2a0:402:0::11",
-      "kavlan-13": "2001:660:4406:4a0:402:0::11",
-      "kavlan-14": "2001:660:4406:5a0:402:0::11",
-      "kavlan-16": "2001:660:4406:7a0:402:0::11",
-      "kavlan-18": "2001:660:4406:8a0:402:0::11",
-      "kavlan-2": "2001:660:4406:481:2:0::11",
-      "kavlan-20": "2001:660:4406:3a0:402:0::11",
-      "kavlan-21": "2001:660:4406:6a0:402:0::11",
-      "kavlan-3": "2001:660:4406:482:2:0::11",
-      "kavlan-4": "2001:660:4406:490:2:0::11",
-      "kavlan-5": "2001:660:4406:491:2:0::11",
-      "kavlan-6": "2001:660:4406:492:2:0::11",
-      "kavlan-7": "2001:660:4406:493:2:0::11",
-      "kavlan-8": "2001:660:4406:494:2:0::11",
-      "kavlan-9": "2001:660:4406:495:2:0::11"
+      "kavlan-1": "2001:660:4406:480:2::11",
+      "kavlan-11": "2001:660:4406:1a0:402::11",
+      "kavlan-12": "2001:660:4406:2a0:402::11",
+      "kavlan-13": "2001:660:4406:4a0:402::11",
+      "kavlan-14": "2001:660:4406:5a0:402::11",
+      "kavlan-16": "2001:660:4406:7a0:402::11",
+      "kavlan-18": "2001:660:4406:8a0:402::11",
+      "kavlan-2": "2001:660:4406:481:2::11",
+      "kavlan-20": "2001:660:4406:3a0:402::11",
+      "kavlan-21": "2001:660:4406:6a0:402::11",
+      "kavlan-3": "2001:660:4406:482:2::11",
+      "kavlan-4": "2001:660:4406:490:2::11",
+      "kavlan-5": "2001:660:4406:491:2::11",
+      "kavlan-6": "2001:660:4406:492:2::11",
+      "kavlan-7": "2001:660:4406:493:2::11",
+      "kavlan-8": "2001:660:4406:494:2::11",
+      "kavlan-9": "2001:660:4406:495:2::11"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.17",
-      "ip6": "2001:660:4406:400:2:0::11",
+      "ip6": "2001:660:4406:400:2::11",
       "kavlan": true,
       "mac": "00:09:3d:11:e7:63",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-18.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-18.json
index c0a5074cdacaa44b88c4b53855475e88f2858289..3e0401454587591ee746af03bbbe0074769789b5 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-18.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-18.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::12",
-      "kavlan-11": "2001:660:4406:1a0:402:0::12",
-      "kavlan-12": "2001:660:4406:2a0:402:0::12",
-      "kavlan-13": "2001:660:4406:4a0:402:0::12",
-      "kavlan-14": "2001:660:4406:5a0:402:0::12",
-      "kavlan-16": "2001:660:4406:7a0:402:0::12",
-      "kavlan-18": "2001:660:4406:8a0:402:0::12",
-      "kavlan-2": "2001:660:4406:481:2:0::12",
-      "kavlan-20": "2001:660:4406:3a0:402:0::12",
-      "kavlan-21": "2001:660:4406:6a0:402:0::12",
-      "kavlan-3": "2001:660:4406:482:2:0::12",
-      "kavlan-4": "2001:660:4406:490:2:0::12",
-      "kavlan-5": "2001:660:4406:491:2:0::12",
-      "kavlan-6": "2001:660:4406:492:2:0::12",
-      "kavlan-7": "2001:660:4406:493:2:0::12",
-      "kavlan-8": "2001:660:4406:494:2:0::12",
-      "kavlan-9": "2001:660:4406:495:2:0::12"
+      "kavlan-1": "2001:660:4406:480:2::12",
+      "kavlan-11": "2001:660:4406:1a0:402::12",
+      "kavlan-12": "2001:660:4406:2a0:402::12",
+      "kavlan-13": "2001:660:4406:4a0:402::12",
+      "kavlan-14": "2001:660:4406:5a0:402::12",
+      "kavlan-16": "2001:660:4406:7a0:402::12",
+      "kavlan-18": "2001:660:4406:8a0:402::12",
+      "kavlan-2": "2001:660:4406:481:2::12",
+      "kavlan-20": "2001:660:4406:3a0:402::12",
+      "kavlan-21": "2001:660:4406:6a0:402::12",
+      "kavlan-3": "2001:660:4406:482:2::12",
+      "kavlan-4": "2001:660:4406:490:2::12",
+      "kavlan-5": "2001:660:4406:491:2::12",
+      "kavlan-6": "2001:660:4406:492:2::12",
+      "kavlan-7": "2001:660:4406:493:2::12",
+      "kavlan-8": "2001:660:4406:494:2::12",
+      "kavlan-9": "2001:660:4406:495:2::12"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.18",
-      "ip6": "2001:660:4406:400:2:0::12",
+      "ip6": "2001:660:4406:400:2::12",
       "kavlan": true,
       "mac": "00:09:3d:12:7e:f2",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-2.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-2.json
index 60bf22455094f6c60394835c4e4f6b38a4634cfb..9831cc852c2d7fcda8c5074cd7a707d8b9ee19c4 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-2.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::2",
-      "kavlan-11": "2001:660:4406:1a0:402:0::2",
-      "kavlan-12": "2001:660:4406:2a0:402:0::2",
-      "kavlan-13": "2001:660:4406:4a0:402:0::2",
-      "kavlan-14": "2001:660:4406:5a0:402:0::2",
-      "kavlan-16": "2001:660:4406:7a0:402:0::2",
-      "kavlan-18": "2001:660:4406:8a0:402:0::2",
-      "kavlan-2": "2001:660:4406:481:2:0::2",
-      "kavlan-20": "2001:660:4406:3a0:402:0::2",
-      "kavlan-21": "2001:660:4406:6a0:402:0::2",
-      "kavlan-3": "2001:660:4406:482:2:0::2",
-      "kavlan-4": "2001:660:4406:490:2:0::2",
-      "kavlan-5": "2001:660:4406:491:2:0::2",
-      "kavlan-6": "2001:660:4406:492:2:0::2",
-      "kavlan-7": "2001:660:4406:493:2:0::2",
-      "kavlan-8": "2001:660:4406:494:2:0::2",
-      "kavlan-9": "2001:660:4406:495:2:0::2"
+      "kavlan-1": "2001:660:4406:480:2::2",
+      "kavlan-11": "2001:660:4406:1a0:402::2",
+      "kavlan-12": "2001:660:4406:2a0:402::2",
+      "kavlan-13": "2001:660:4406:4a0:402::2",
+      "kavlan-14": "2001:660:4406:5a0:402::2",
+      "kavlan-16": "2001:660:4406:7a0:402::2",
+      "kavlan-18": "2001:660:4406:8a0:402::2",
+      "kavlan-2": "2001:660:4406:481:2::2",
+      "kavlan-20": "2001:660:4406:3a0:402::2",
+      "kavlan-21": "2001:660:4406:6a0:402::2",
+      "kavlan-3": "2001:660:4406:482:2::2",
+      "kavlan-4": "2001:660:4406:490:2::2",
+      "kavlan-5": "2001:660:4406:491:2::2",
+      "kavlan-6": "2001:660:4406:492:2::2",
+      "kavlan-7": "2001:660:4406:493:2::2",
+      "kavlan-8": "2001:660:4406:494:2::2",
+      "kavlan-9": "2001:660:4406:495:2::2"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.2",
-      "ip6": "2001:660:4406:400:2:0::2",
+      "ip6": "2001:660:4406:400:2::2",
       "kavlan": true,
       "mac": "00:09:3d:12:65:7d",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-20.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-20.json
index 304007a65a03e7efc7046ecfefdf048f28f6b2f4..b7125ffb8904d5683015486be7a8f42273c7ea99 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-20.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-20.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::14",
-      "kavlan-11": "2001:660:4406:1a0:402:0::14",
-      "kavlan-12": "2001:660:4406:2a0:402:0::14",
-      "kavlan-13": "2001:660:4406:4a0:402:0::14",
-      "kavlan-14": "2001:660:4406:5a0:402:0::14",
-      "kavlan-16": "2001:660:4406:7a0:402:0::14",
-      "kavlan-18": "2001:660:4406:8a0:402:0::14",
-      "kavlan-2": "2001:660:4406:481:2:0::14",
-      "kavlan-20": "2001:660:4406:3a0:402:0::14",
-      "kavlan-21": "2001:660:4406:6a0:402:0::14",
-      "kavlan-3": "2001:660:4406:482:2:0::14",
-      "kavlan-4": "2001:660:4406:490:2:0::14",
-      "kavlan-5": "2001:660:4406:491:2:0::14",
-      "kavlan-6": "2001:660:4406:492:2:0::14",
-      "kavlan-7": "2001:660:4406:493:2:0::14",
-      "kavlan-8": "2001:660:4406:494:2:0::14",
-      "kavlan-9": "2001:660:4406:495:2:0::14"
+      "kavlan-1": "2001:660:4406:480:2::14",
+      "kavlan-11": "2001:660:4406:1a0:402::14",
+      "kavlan-12": "2001:660:4406:2a0:402::14",
+      "kavlan-13": "2001:660:4406:4a0:402::14",
+      "kavlan-14": "2001:660:4406:5a0:402::14",
+      "kavlan-16": "2001:660:4406:7a0:402::14",
+      "kavlan-18": "2001:660:4406:8a0:402::14",
+      "kavlan-2": "2001:660:4406:481:2::14",
+      "kavlan-20": "2001:660:4406:3a0:402::14",
+      "kavlan-21": "2001:660:4406:6a0:402::14",
+      "kavlan-3": "2001:660:4406:482:2::14",
+      "kavlan-4": "2001:660:4406:490:2::14",
+      "kavlan-5": "2001:660:4406:491:2::14",
+      "kavlan-6": "2001:660:4406:492:2::14",
+      "kavlan-7": "2001:660:4406:493:2::14",
+      "kavlan-8": "2001:660:4406:494:2::14",
+      "kavlan-9": "2001:660:4406:495:2::14"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.20",
-      "ip6": "2001:660:4406:400:2:0::14",
+      "ip6": "2001:660:4406:400:2::14",
       "kavlan": true,
       "mac": "00:09:3d:12:90:84",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-24.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-24.json
index a0a1fd6b9529473a46d644e2f5f3e79d94612c07..f4a3eb3568332bdcb3e015e9db4f6d0c6f3d579d 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-24.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-24.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::18",
-      "kavlan-11": "2001:660:4406:1a0:402:0::18",
-      "kavlan-12": "2001:660:4406:2a0:402:0::18",
-      "kavlan-13": "2001:660:4406:4a0:402:0::18",
-      "kavlan-14": "2001:660:4406:5a0:402:0::18",
-      "kavlan-16": "2001:660:4406:7a0:402:0::18",
-      "kavlan-18": "2001:660:4406:8a0:402:0::18",
-      "kavlan-2": "2001:660:4406:481:2:0::18",
-      "kavlan-20": "2001:660:4406:3a0:402:0::18",
-      "kavlan-21": "2001:660:4406:6a0:402:0::18",
-      "kavlan-3": "2001:660:4406:482:2:0::18",
-      "kavlan-4": "2001:660:4406:490:2:0::18",
-      "kavlan-5": "2001:660:4406:491:2:0::18",
-      "kavlan-6": "2001:660:4406:492:2:0::18",
-      "kavlan-7": "2001:660:4406:493:2:0::18",
-      "kavlan-8": "2001:660:4406:494:2:0::18",
-      "kavlan-9": "2001:660:4406:495:2:0::18"
+      "kavlan-1": "2001:660:4406:480:2::18",
+      "kavlan-11": "2001:660:4406:1a0:402::18",
+      "kavlan-12": "2001:660:4406:2a0:402::18",
+      "kavlan-13": "2001:660:4406:4a0:402::18",
+      "kavlan-14": "2001:660:4406:5a0:402::18",
+      "kavlan-16": "2001:660:4406:7a0:402::18",
+      "kavlan-18": "2001:660:4406:8a0:402::18",
+      "kavlan-2": "2001:660:4406:481:2::18",
+      "kavlan-20": "2001:660:4406:3a0:402::18",
+      "kavlan-21": "2001:660:4406:6a0:402::18",
+      "kavlan-3": "2001:660:4406:482:2::18",
+      "kavlan-4": "2001:660:4406:490:2::18",
+      "kavlan-5": "2001:660:4406:491:2::18",
+      "kavlan-6": "2001:660:4406:492:2::18",
+      "kavlan-7": "2001:660:4406:493:2::18",
+      "kavlan-8": "2001:660:4406:494:2::18",
+      "kavlan-9": "2001:660:4406:495:2::18"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.24",
-      "ip6": "2001:660:4406:400:2:0::18",
+      "ip6": "2001:660:4406:400:2::18",
       "kavlan": true,
       "mac": "00:09:3d:12:50:86",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-27.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-27.json
index 75a9192a8f841c140e3d3eb9dd737a681ca9ab96..28f79826ddefc0a9246984b2225f0d71c72062e4 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-27.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-27.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::1b",
-      "kavlan-11": "2001:660:4406:1a0:402:0::1b",
-      "kavlan-12": "2001:660:4406:2a0:402:0::1b",
-      "kavlan-13": "2001:660:4406:4a0:402:0::1b",
-      "kavlan-14": "2001:660:4406:5a0:402:0::1b",
-      "kavlan-16": "2001:660:4406:7a0:402:0::1b",
-      "kavlan-18": "2001:660:4406:8a0:402:0::1b",
-      "kavlan-2": "2001:660:4406:481:2:0::1b",
-      "kavlan-20": "2001:660:4406:3a0:402:0::1b",
-      "kavlan-21": "2001:660:4406:6a0:402:0::1b",
-      "kavlan-3": "2001:660:4406:482:2:0::1b",
-      "kavlan-4": "2001:660:4406:490:2:0::1b",
-      "kavlan-5": "2001:660:4406:491:2:0::1b",
-      "kavlan-6": "2001:660:4406:492:2:0::1b",
-      "kavlan-7": "2001:660:4406:493:2:0::1b",
-      "kavlan-8": "2001:660:4406:494:2:0::1b",
-      "kavlan-9": "2001:660:4406:495:2:0::1b"
+      "kavlan-1": "2001:660:4406:480:2::1b",
+      "kavlan-11": "2001:660:4406:1a0:402::1b",
+      "kavlan-12": "2001:660:4406:2a0:402::1b",
+      "kavlan-13": "2001:660:4406:4a0:402::1b",
+      "kavlan-14": "2001:660:4406:5a0:402::1b",
+      "kavlan-16": "2001:660:4406:7a0:402::1b",
+      "kavlan-18": "2001:660:4406:8a0:402::1b",
+      "kavlan-2": "2001:660:4406:481:2::1b",
+      "kavlan-20": "2001:660:4406:3a0:402::1b",
+      "kavlan-21": "2001:660:4406:6a0:402::1b",
+      "kavlan-3": "2001:660:4406:482:2::1b",
+      "kavlan-4": "2001:660:4406:490:2::1b",
+      "kavlan-5": "2001:660:4406:491:2::1b",
+      "kavlan-6": "2001:660:4406:492:2::1b",
+      "kavlan-7": "2001:660:4406:493:2::1b",
+      "kavlan-8": "2001:660:4406:494:2::1b",
+      "kavlan-9": "2001:660:4406:495:2::1b"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.27",
-      "ip6": "2001:660:4406:400:2:0::1b",
+      "ip6": "2001:660:4406:400:2::1b",
       "kavlan": true,
       "mac": "00:09:3d:12:6a:f1",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-29.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-29.json
index 9e9476a5d15fed6710dfe821ad2b71c6a228fafe..9f47760925051611215c376ad087c75dd21235d5 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-29.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-29.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::1d",
-      "kavlan-11": "2001:660:4406:1a0:402:0::1d",
-      "kavlan-12": "2001:660:4406:2a0:402:0::1d",
-      "kavlan-13": "2001:660:4406:4a0:402:0::1d",
-      "kavlan-14": "2001:660:4406:5a0:402:0::1d",
-      "kavlan-16": "2001:660:4406:7a0:402:0::1d",
-      "kavlan-18": "2001:660:4406:8a0:402:0::1d",
-      "kavlan-2": "2001:660:4406:481:2:0::1d",
-      "kavlan-20": "2001:660:4406:3a0:402:0::1d",
-      "kavlan-21": "2001:660:4406:6a0:402:0::1d",
-      "kavlan-3": "2001:660:4406:482:2:0::1d",
-      "kavlan-4": "2001:660:4406:490:2:0::1d",
-      "kavlan-5": "2001:660:4406:491:2:0::1d",
-      "kavlan-6": "2001:660:4406:492:2:0::1d",
-      "kavlan-7": "2001:660:4406:493:2:0::1d",
-      "kavlan-8": "2001:660:4406:494:2:0::1d",
-      "kavlan-9": "2001:660:4406:495:2:0::1d"
+      "kavlan-1": "2001:660:4406:480:2::1d",
+      "kavlan-11": "2001:660:4406:1a0:402::1d",
+      "kavlan-12": "2001:660:4406:2a0:402::1d",
+      "kavlan-13": "2001:660:4406:4a0:402::1d",
+      "kavlan-14": "2001:660:4406:5a0:402::1d",
+      "kavlan-16": "2001:660:4406:7a0:402::1d",
+      "kavlan-18": "2001:660:4406:8a0:402::1d",
+      "kavlan-2": "2001:660:4406:481:2::1d",
+      "kavlan-20": "2001:660:4406:3a0:402::1d",
+      "kavlan-21": "2001:660:4406:6a0:402::1d",
+      "kavlan-3": "2001:660:4406:482:2::1d",
+      "kavlan-4": "2001:660:4406:490:2::1d",
+      "kavlan-5": "2001:660:4406:491:2::1d",
+      "kavlan-6": "2001:660:4406:492:2::1d",
+      "kavlan-7": "2001:660:4406:493:2::1d",
+      "kavlan-8": "2001:660:4406:494:2::1d",
+      "kavlan-9": "2001:660:4406:495:2::1d"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.29",
-      "ip6": "2001:660:4406:400:2:0::1d",
+      "ip6": "2001:660:4406:400:2::1d",
       "kavlan": true,
       "mac": "00:09:3d:11:e9:ff",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-3.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-3.json
index 3d3dc4041f146bbd8d14d8c02687dc59db32ba26..0c91b69a15003b14f3b1ba298f99358ede98cf1d 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-3.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::3",
-      "kavlan-11": "2001:660:4406:1a0:402:0::3",
-      "kavlan-12": "2001:660:4406:2a0:402:0::3",
-      "kavlan-13": "2001:660:4406:4a0:402:0::3",
-      "kavlan-14": "2001:660:4406:5a0:402:0::3",
-      "kavlan-16": "2001:660:4406:7a0:402:0::3",
-      "kavlan-18": "2001:660:4406:8a0:402:0::3",
-      "kavlan-2": "2001:660:4406:481:2:0::3",
-      "kavlan-20": "2001:660:4406:3a0:402:0::3",
-      "kavlan-21": "2001:660:4406:6a0:402:0::3",
-      "kavlan-3": "2001:660:4406:482:2:0::3",
-      "kavlan-4": "2001:660:4406:490:2:0::3",
-      "kavlan-5": "2001:660:4406:491:2:0::3",
-      "kavlan-6": "2001:660:4406:492:2:0::3",
-      "kavlan-7": "2001:660:4406:493:2:0::3",
-      "kavlan-8": "2001:660:4406:494:2:0::3",
-      "kavlan-9": "2001:660:4406:495:2:0::3"
+      "kavlan-1": "2001:660:4406:480:2::3",
+      "kavlan-11": "2001:660:4406:1a0:402::3",
+      "kavlan-12": "2001:660:4406:2a0:402::3",
+      "kavlan-13": "2001:660:4406:4a0:402::3",
+      "kavlan-14": "2001:660:4406:5a0:402::3",
+      "kavlan-16": "2001:660:4406:7a0:402::3",
+      "kavlan-18": "2001:660:4406:8a0:402::3",
+      "kavlan-2": "2001:660:4406:481:2::3",
+      "kavlan-20": "2001:660:4406:3a0:402::3",
+      "kavlan-21": "2001:660:4406:6a0:402::3",
+      "kavlan-3": "2001:660:4406:482:2::3",
+      "kavlan-4": "2001:660:4406:490:2::3",
+      "kavlan-5": "2001:660:4406:491:2::3",
+      "kavlan-6": "2001:660:4406:492:2::3",
+      "kavlan-7": "2001:660:4406:493:2::3",
+      "kavlan-8": "2001:660:4406:494:2::3",
+      "kavlan-9": "2001:660:4406:495:2::3"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.3",
-      "ip6": "2001:660:4406:400:2:0::3",
+      "ip6": "2001:660:4406:400:2::3",
       "kavlan": true,
       "mac": "00:09:3d:12:91:67",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-30.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-30.json
index 013cf9ee431ca8e3b8c00fbe4322577966597de6..4a38b786e9b7a0321cb7a87f8e3308bb16b4077a 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-30.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-30.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::1e",
-      "kavlan-11": "2001:660:4406:1a0:402:0::1e",
-      "kavlan-12": "2001:660:4406:2a0:402:0::1e",
-      "kavlan-13": "2001:660:4406:4a0:402:0::1e",
-      "kavlan-14": "2001:660:4406:5a0:402:0::1e",
-      "kavlan-16": "2001:660:4406:7a0:402:0::1e",
-      "kavlan-18": "2001:660:4406:8a0:402:0::1e",
-      "kavlan-2": "2001:660:4406:481:2:0::1e",
-      "kavlan-20": "2001:660:4406:3a0:402:0::1e",
-      "kavlan-21": "2001:660:4406:6a0:402:0::1e",
-      "kavlan-3": "2001:660:4406:482:2:0::1e",
-      "kavlan-4": "2001:660:4406:490:2:0::1e",
-      "kavlan-5": "2001:660:4406:491:2:0::1e",
-      "kavlan-6": "2001:660:4406:492:2:0::1e",
-      "kavlan-7": "2001:660:4406:493:2:0::1e",
-      "kavlan-8": "2001:660:4406:494:2:0::1e",
-      "kavlan-9": "2001:660:4406:495:2:0::1e"
+      "kavlan-1": "2001:660:4406:480:2::1e",
+      "kavlan-11": "2001:660:4406:1a0:402::1e",
+      "kavlan-12": "2001:660:4406:2a0:402::1e",
+      "kavlan-13": "2001:660:4406:4a0:402::1e",
+      "kavlan-14": "2001:660:4406:5a0:402::1e",
+      "kavlan-16": "2001:660:4406:7a0:402::1e",
+      "kavlan-18": "2001:660:4406:8a0:402::1e",
+      "kavlan-2": "2001:660:4406:481:2::1e",
+      "kavlan-20": "2001:660:4406:3a0:402::1e",
+      "kavlan-21": "2001:660:4406:6a0:402::1e",
+      "kavlan-3": "2001:660:4406:482:2::1e",
+      "kavlan-4": "2001:660:4406:490:2::1e",
+      "kavlan-5": "2001:660:4406:491:2::1e",
+      "kavlan-6": "2001:660:4406:492:2::1e",
+      "kavlan-7": "2001:660:4406:493:2::1e",
+      "kavlan-8": "2001:660:4406:494:2::1e",
+      "kavlan-9": "2001:660:4406:495:2::1e"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.30",
-      "ip6": "2001:660:4406:400:2:0::1e",
+      "ip6": "2001:660:4406:400:2::1e",
       "kavlan": true,
       "mac": "00:09:3d:12:7c:94",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-4.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-4.json
index 949683fdf0e64c2ba7568d16ae9c57d98fbeee83..6cadca8d6df9235d9ed851d2b80b645afa8d060f 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-4.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::4",
-      "kavlan-11": "2001:660:4406:1a0:402:0::4",
-      "kavlan-12": "2001:660:4406:2a0:402:0::4",
-      "kavlan-13": "2001:660:4406:4a0:402:0::4",
-      "kavlan-14": "2001:660:4406:5a0:402:0::4",
-      "kavlan-16": "2001:660:4406:7a0:402:0::4",
-      "kavlan-18": "2001:660:4406:8a0:402:0::4",
-      "kavlan-2": "2001:660:4406:481:2:0::4",
-      "kavlan-20": "2001:660:4406:3a0:402:0::4",
-      "kavlan-21": "2001:660:4406:6a0:402:0::4",
-      "kavlan-3": "2001:660:4406:482:2:0::4",
-      "kavlan-4": "2001:660:4406:490:2:0::4",
-      "kavlan-5": "2001:660:4406:491:2:0::4",
-      "kavlan-6": "2001:660:4406:492:2:0::4",
-      "kavlan-7": "2001:660:4406:493:2:0::4",
-      "kavlan-8": "2001:660:4406:494:2:0::4",
-      "kavlan-9": "2001:660:4406:495:2:0::4"
+      "kavlan-1": "2001:660:4406:480:2::4",
+      "kavlan-11": "2001:660:4406:1a0:402::4",
+      "kavlan-12": "2001:660:4406:2a0:402::4",
+      "kavlan-13": "2001:660:4406:4a0:402::4",
+      "kavlan-14": "2001:660:4406:5a0:402::4",
+      "kavlan-16": "2001:660:4406:7a0:402::4",
+      "kavlan-18": "2001:660:4406:8a0:402::4",
+      "kavlan-2": "2001:660:4406:481:2::4",
+      "kavlan-20": "2001:660:4406:3a0:402::4",
+      "kavlan-21": "2001:660:4406:6a0:402::4",
+      "kavlan-3": "2001:660:4406:482:2::4",
+      "kavlan-4": "2001:660:4406:490:2::4",
+      "kavlan-5": "2001:660:4406:491:2::4",
+      "kavlan-6": "2001:660:4406:492:2::4",
+      "kavlan-7": "2001:660:4406:493:2::4",
+      "kavlan-8": "2001:660:4406:494:2::4",
+      "kavlan-9": "2001:660:4406:495:2::4"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.4",
-      "ip6": "2001:660:4406:400:2:0::4",
+      "ip6": "2001:660:4406:400:2::4",
       "kavlan": true,
       "mac": "00:09:3d:12:7e:bc",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-5.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-5.json
index 963bb82db1470858505f05ed202184d969425956..b8b85db1238b61dc7ebf2780331f674405ece834 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-5.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::5",
-      "kavlan-11": "2001:660:4406:1a0:402:0::5",
-      "kavlan-12": "2001:660:4406:2a0:402:0::5",
-      "kavlan-13": "2001:660:4406:4a0:402:0::5",
-      "kavlan-14": "2001:660:4406:5a0:402:0::5",
-      "kavlan-16": "2001:660:4406:7a0:402:0::5",
-      "kavlan-18": "2001:660:4406:8a0:402:0::5",
-      "kavlan-2": "2001:660:4406:481:2:0::5",
-      "kavlan-20": "2001:660:4406:3a0:402:0::5",
-      "kavlan-21": "2001:660:4406:6a0:402:0::5",
-      "kavlan-3": "2001:660:4406:482:2:0::5",
-      "kavlan-4": "2001:660:4406:490:2:0::5",
-      "kavlan-5": "2001:660:4406:491:2:0::5",
-      "kavlan-6": "2001:660:4406:492:2:0::5",
-      "kavlan-7": "2001:660:4406:493:2:0::5",
-      "kavlan-8": "2001:660:4406:494:2:0::5",
-      "kavlan-9": "2001:660:4406:495:2:0::5"
+      "kavlan-1": "2001:660:4406:480:2::5",
+      "kavlan-11": "2001:660:4406:1a0:402::5",
+      "kavlan-12": "2001:660:4406:2a0:402::5",
+      "kavlan-13": "2001:660:4406:4a0:402::5",
+      "kavlan-14": "2001:660:4406:5a0:402::5",
+      "kavlan-16": "2001:660:4406:7a0:402::5",
+      "kavlan-18": "2001:660:4406:8a0:402::5",
+      "kavlan-2": "2001:660:4406:481:2::5",
+      "kavlan-20": "2001:660:4406:3a0:402::5",
+      "kavlan-21": "2001:660:4406:6a0:402::5",
+      "kavlan-3": "2001:660:4406:482:2::5",
+      "kavlan-4": "2001:660:4406:490:2::5",
+      "kavlan-5": "2001:660:4406:491:2::5",
+      "kavlan-6": "2001:660:4406:492:2::5",
+      "kavlan-7": "2001:660:4406:493:2::5",
+      "kavlan-8": "2001:660:4406:494:2::5",
+      "kavlan-9": "2001:660:4406:495:2::5"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.5",
-      "ip6": "2001:660:4406:400:2:0::5",
+      "ip6": "2001:660:4406:400:2::5",
       "kavlan": true,
       "mac": "00:09:3d:12:3b:7a",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-6.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-6.json
index 4424c5550287401bdffc9e3f43b667df44e5dc9d..a320e8cd82984b2fb50ecf1d14e8c4dccfd292cf 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-6.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2:0::6",
-      "kavlan-11": "2001:660:4406:1a0:402:0::6",
-      "kavlan-12": "2001:660:4406:2a0:402:0::6",
-      "kavlan-13": "2001:660:4406:4a0:402:0::6",
-      "kavlan-14": "2001:660:4406:5a0:402:0::6",
-      "kavlan-16": "2001:660:4406:7a0:402:0::6",
-      "kavlan-18": "2001:660:4406:8a0:402:0::6",
-      "kavlan-2": "2001:660:4406:481:2:0::6",
-      "kavlan-20": "2001:660:4406:3a0:402:0::6",
-      "kavlan-21": "2001:660:4406:6a0:402:0::6",
-      "kavlan-3": "2001:660:4406:482:2:0::6",
-      "kavlan-4": "2001:660:4406:490:2:0::6",
-      "kavlan-5": "2001:660:4406:491:2:0::6",
-      "kavlan-6": "2001:660:4406:492:2:0::6",
-      "kavlan-7": "2001:660:4406:493:2:0::6",
-      "kavlan-8": "2001:660:4406:494:2:0::6",
-      "kavlan-9": "2001:660:4406:495:2:0::6"
+      "kavlan-1": "2001:660:4406:480:2::6",
+      "kavlan-11": "2001:660:4406:1a0:402::6",
+      "kavlan-12": "2001:660:4406:2a0:402::6",
+      "kavlan-13": "2001:660:4406:4a0:402::6",
+      "kavlan-14": "2001:660:4406:5a0:402::6",
+      "kavlan-16": "2001:660:4406:7a0:402::6",
+      "kavlan-18": "2001:660:4406:8a0:402::6",
+      "kavlan-2": "2001:660:4406:481:2::6",
+      "kavlan-20": "2001:660:4406:3a0:402::6",
+      "kavlan-21": "2001:660:4406:6a0:402::6",
+      "kavlan-3": "2001:660:4406:482:2::6",
+      "kavlan-4": "2001:660:4406:490:2::6",
+      "kavlan-5": "2001:660:4406:491:2::6",
+      "kavlan-6": "2001:660:4406:492:2::6",
+      "kavlan-7": "2001:660:4406:493:2::6",
+      "kavlan-8": "2001:660:4406:494:2::6",
+      "kavlan-9": "2001:660:4406:495:2::6"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.6",
-      "ip6": "2001:660:4406:400:2:0::6",
+      "ip6": "2001:660:4406:400:2::6",
       "kavlan": true,
       "mac": "00:09:3d:12:3e:eb",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-1.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-1.json
index 7e7ab7fa6933702b5640d4438faae0e4e5cf48af..60ecd0b4c94014e6f06175ed9f4733ce32ed26f8 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-1.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1:0::1",
-      "kavlan-11": "2001:660:4406:1a0:401:0::1",
-      "kavlan-12": "2001:660:4406:2a0:401:0::1",
-      "kavlan-13": "2001:660:4406:4a0:401:0::1",
-      "kavlan-14": "2001:660:4406:5a0:401:0::1",
-      "kavlan-16": "2001:660:4406:7a0:401:0::1",
-      "kavlan-18": "2001:660:4406:8a0:401:0::1",
-      "kavlan-2": "2001:660:4406:481:1:0::1",
-      "kavlan-20": "2001:660:4406:3a0:401:0::1",
-      "kavlan-21": "2001:660:4406:6a0:401:0::1",
-      "kavlan-3": "2001:660:4406:482:1:0::1",
-      "kavlan-4": "2001:660:4406:490:1:0::1",
-      "kavlan-5": "2001:660:4406:491:1:0::1",
-      "kavlan-6": "2001:660:4406:492:1:0::1",
-      "kavlan-7": "2001:660:4406:493:1:0::1",
-      "kavlan-8": "2001:660:4406:494:1:0::1",
-      "kavlan-9": "2001:660:4406:495:1:0::1"
+      "kavlan-1": "2001:660:4406:480:1::1",
+      "kavlan-11": "2001:660:4406:1a0:401::1",
+      "kavlan-12": "2001:660:4406:2a0:401::1",
+      "kavlan-13": "2001:660:4406:4a0:401::1",
+      "kavlan-14": "2001:660:4406:5a0:401::1",
+      "kavlan-16": "2001:660:4406:7a0:401::1",
+      "kavlan-18": "2001:660:4406:8a0:401::1",
+      "kavlan-2": "2001:660:4406:481:1::1",
+      "kavlan-20": "2001:660:4406:3a0:401::1",
+      "kavlan-21": "2001:660:4406:6a0:401::1",
+      "kavlan-3": "2001:660:4406:482:1::1",
+      "kavlan-4": "2001:660:4406:490:1::1",
+      "kavlan-5": "2001:660:4406:491:1::1",
+      "kavlan-6": "2001:660:4406:492:1::1",
+      "kavlan-7": "2001:660:4406:493:1::1",
+      "kavlan-8": "2001:660:4406:494:1::1",
+      "kavlan-9": "2001:660:4406:495:1::1"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.1",
-      "ip6": "2001:660:4406:400:1:0::1",
+      "ip6": "2001:660:4406:400:1::1",
       "kavlan": true,
       "mac": "a0:36:9f:09:c2:44",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-10.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-10.json
index cc5d306ac6dcce71c7072a82e2eb4c283dc5f407..16cea68d2f471bfdaedb23ad82ae0fc73f58f380 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-10.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1:0::a",
-      "kavlan-11": "2001:660:4406:1a0:401:0::a",
-      "kavlan-12": "2001:660:4406:2a0:401:0::a",
-      "kavlan-13": "2001:660:4406:4a0:401:0::a",
-      "kavlan-14": "2001:660:4406:5a0:401:0::a",
-      "kavlan-16": "2001:660:4406:7a0:401:0::a",
-      "kavlan-18": "2001:660:4406:8a0:401:0::a",
-      "kavlan-2": "2001:660:4406:481:1:0::a",
-      "kavlan-20": "2001:660:4406:3a0:401:0::a",
-      "kavlan-21": "2001:660:4406:6a0:401:0::a",
-      "kavlan-3": "2001:660:4406:482:1:0::a",
-      "kavlan-4": "2001:660:4406:490:1:0::a",
-      "kavlan-5": "2001:660:4406:491:1:0::a",
-      "kavlan-6": "2001:660:4406:492:1:0::a",
-      "kavlan-7": "2001:660:4406:493:1:0::a",
-      "kavlan-8": "2001:660:4406:494:1:0::a",
-      "kavlan-9": "2001:660:4406:495:1:0::a"
+      "kavlan-1": "2001:660:4406:480:1::a",
+      "kavlan-11": "2001:660:4406:1a0:401::a",
+      "kavlan-12": "2001:660:4406:2a0:401::a",
+      "kavlan-13": "2001:660:4406:4a0:401::a",
+      "kavlan-14": "2001:660:4406:5a0:401::a",
+      "kavlan-16": "2001:660:4406:7a0:401::a",
+      "kavlan-18": "2001:660:4406:8a0:401::a",
+      "kavlan-2": "2001:660:4406:481:1::a",
+      "kavlan-20": "2001:660:4406:3a0:401::a",
+      "kavlan-21": "2001:660:4406:6a0:401::a",
+      "kavlan-3": "2001:660:4406:482:1::a",
+      "kavlan-4": "2001:660:4406:490:1::a",
+      "kavlan-5": "2001:660:4406:491:1::a",
+      "kavlan-6": "2001:660:4406:492:1::a",
+      "kavlan-7": "2001:660:4406:493:1::a",
+      "kavlan-8": "2001:660:4406:494:1::a",
+      "kavlan-9": "2001:660:4406:495:1::a"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.10",
-      "ip6": "2001:660:4406:400:1:0::a",
+      "ip6": "2001:660:4406:400:1::a",
       "kavlan": true,
       "mac": "a0:36:9f:09:c2:f0",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-11.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-11.json
index 9f2bb607c3eef127ec5e1db8027360ba9f7e9b26..d1736d2d495f75d57e2cb2235e4b0e4e6e4540b3 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-11.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1:0::b",
-      "kavlan-11": "2001:660:4406:1a0:401:0::b",
-      "kavlan-12": "2001:660:4406:2a0:401:0::b",
-      "kavlan-13": "2001:660:4406:4a0:401:0::b",
-      "kavlan-14": "2001:660:4406:5a0:401:0::b",
-      "kavlan-16": "2001:660:4406:7a0:401:0::b",
-      "kavlan-18": "2001:660:4406:8a0:401:0::b",
-      "kavlan-2": "2001:660:4406:481:1:0::b",
-      "kavlan-20": "2001:660:4406:3a0:401:0::b",
-      "kavlan-21": "2001:660:4406:6a0:401:0::b",
-      "kavlan-3": "2001:660:4406:482:1:0::b",
-      "kavlan-4": "2001:660:4406:490:1:0::b",
-      "kavlan-5": "2001:660:4406:491:1:0::b",
-      "kavlan-6": "2001:660:4406:492:1:0::b",
-      "kavlan-7": "2001:660:4406:493:1:0::b",
-      "kavlan-8": "2001:660:4406:494:1:0::b",
-      "kavlan-9": "2001:660:4406:495:1:0::b"
+      "kavlan-1": "2001:660:4406:480:1::b",
+      "kavlan-11": "2001:660:4406:1a0:401::b",
+      "kavlan-12": "2001:660:4406:2a0:401::b",
+      "kavlan-13": "2001:660:4406:4a0:401::b",
+      "kavlan-14": "2001:660:4406:5a0:401::b",
+      "kavlan-16": "2001:660:4406:7a0:401::b",
+      "kavlan-18": "2001:660:4406:8a0:401::b",
+      "kavlan-2": "2001:660:4406:481:1::b",
+      "kavlan-20": "2001:660:4406:3a0:401::b",
+      "kavlan-21": "2001:660:4406:6a0:401::b",
+      "kavlan-3": "2001:660:4406:482:1::b",
+      "kavlan-4": "2001:660:4406:490:1::b",
+      "kavlan-5": "2001:660:4406:491:1::b",
+      "kavlan-6": "2001:660:4406:492:1::b",
+      "kavlan-7": "2001:660:4406:493:1::b",
+      "kavlan-8": "2001:660:4406:494:1::b",
+      "kavlan-9": "2001:660:4406:495:1::b"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.11",
-      "ip6": "2001:660:4406:400:1:0::b",
+      "ip6": "2001:660:4406:400:1::b",
       "kavlan": true,
       "mac": "a0:36:9f:09:c2:30",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-12.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-12.json
index 335ecbceef3dad15106b403db8f58620c239e3c6..9803af8857570813de7cc7222a625e9b5dd64ecf 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-12.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1:0::c",
-      "kavlan-11": "2001:660:4406:1a0:401:0::c",
-      "kavlan-12": "2001:660:4406:2a0:401:0::c",
-      "kavlan-13": "2001:660:4406:4a0:401:0::c",
-      "kavlan-14": "2001:660:4406:5a0:401:0::c",
-      "kavlan-16": "2001:660:4406:7a0:401:0::c",
-      "kavlan-18": "2001:660:4406:8a0:401:0::c",
-      "kavlan-2": "2001:660:4406:481:1:0::c",
-      "kavlan-20": "2001:660:4406:3a0:401:0::c",
-      "kavlan-21": "2001:660:4406:6a0:401:0::c",
-      "kavlan-3": "2001:660:4406:482:1:0::c",
-      "kavlan-4": "2001:660:4406:490:1:0::c",
-      "kavlan-5": "2001:660:4406:491:1:0::c",
-      "kavlan-6": "2001:660:4406:492:1:0::c",
-      "kavlan-7": "2001:660:4406:493:1:0::c",
-      "kavlan-8": "2001:660:4406:494:1:0::c",
-      "kavlan-9": "2001:660:4406:495:1:0::c"
+      "kavlan-1": "2001:660:4406:480:1::c",
+      "kavlan-11": "2001:660:4406:1a0:401::c",
+      "kavlan-12": "2001:660:4406:2a0:401::c",
+      "kavlan-13": "2001:660:4406:4a0:401::c",
+      "kavlan-14": "2001:660:4406:5a0:401::c",
+      "kavlan-16": "2001:660:4406:7a0:401::c",
+      "kavlan-18": "2001:660:4406:8a0:401::c",
+      "kavlan-2": "2001:660:4406:481:1::c",
+      "kavlan-20": "2001:660:4406:3a0:401::c",
+      "kavlan-21": "2001:660:4406:6a0:401::c",
+      "kavlan-3": "2001:660:4406:482:1::c",
+      "kavlan-4": "2001:660:4406:490:1::c",
+      "kavlan-5": "2001:660:4406:491:1::c",
+      "kavlan-6": "2001:660:4406:492:1::c",
+      "kavlan-7": "2001:660:4406:493:1::c",
+      "kavlan-8": "2001:660:4406:494:1::c",
+      "kavlan-9": "2001:660:4406:495:1::c"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.12",
-      "ip6": "2001:660:4406:400:1:0::c",
+      "ip6": "2001:660:4406:400:1::c",
       "kavlan": true,
       "mac": "a0:36:9f:08:f8:f4",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-13.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-13.json
index d721223f09ea5dd55995dd919a908a29d41183af..957b99b021a2ee7e953dc990bdf3e6791315cf10 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-13.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1:0::d",
-      "kavlan-11": "2001:660:4406:1a0:401:0::d",
-      "kavlan-12": "2001:660:4406:2a0:401:0::d",
-      "kavlan-13": "2001:660:4406:4a0:401:0::d",
-      "kavlan-14": "2001:660:4406:5a0:401:0::d",
-      "kavlan-16": "2001:660:4406:7a0:401:0::d",
-      "kavlan-18": "2001:660:4406:8a0:401:0::d",
-      "kavlan-2": "2001:660:4406:481:1:0::d",
-      "kavlan-20": "2001:660:4406:3a0:401:0::d",
-      "kavlan-21": "2001:660:4406:6a0:401:0::d",
-      "kavlan-3": "2001:660:4406:482:1:0::d",
-      "kavlan-4": "2001:660:4406:490:1:0::d",
-      "kavlan-5": "2001:660:4406:491:1:0::d",
-      "kavlan-6": "2001:660:4406:492:1:0::d",
-      "kavlan-7": "2001:660:4406:493:1:0::d",
-      "kavlan-8": "2001:660:4406:494:1:0::d",
-      "kavlan-9": "2001:660:4406:495:1:0::d"
+      "kavlan-1": "2001:660:4406:480:1::d",
+      "kavlan-11": "2001:660:4406:1a0:401::d",
+      "kavlan-12": "2001:660:4406:2a0:401::d",
+      "kavlan-13": "2001:660:4406:4a0:401::d",
+      "kavlan-14": "2001:660:4406:5a0:401::d",
+      "kavlan-16": "2001:660:4406:7a0:401::d",
+      "kavlan-18": "2001:660:4406:8a0:401::d",
+      "kavlan-2": "2001:660:4406:481:1::d",
+      "kavlan-20": "2001:660:4406:3a0:401::d",
+      "kavlan-21": "2001:660:4406:6a0:401::d",
+      "kavlan-3": "2001:660:4406:482:1::d",
+      "kavlan-4": "2001:660:4406:490:1::d",
+      "kavlan-5": "2001:660:4406:491:1::d",
+      "kavlan-6": "2001:660:4406:492:1::d",
+      "kavlan-7": "2001:660:4406:493:1::d",
+      "kavlan-8": "2001:660:4406:494:1::d",
+      "kavlan-9": "2001:660:4406:495:1::d"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.13",
-      "ip6": "2001:660:4406:400:1:0::d",
+      "ip6": "2001:660:4406:400:1::d",
       "kavlan": true,
       "mac": "a0:36:9f:08:f9:24",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-15.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-15.json
index 7e7f659a2188ea766e69b5a25b3b7b6ca92b3142..2b07e4a41d899b034cbe6a934dc00528808dbe96 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-15.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1:0::f",
-      "kavlan-11": "2001:660:4406:1a0:401:0::f",
-      "kavlan-12": "2001:660:4406:2a0:401:0::f",
-      "kavlan-13": "2001:660:4406:4a0:401:0::f",
-      "kavlan-14": "2001:660:4406:5a0:401:0::f",
-      "kavlan-16": "2001:660:4406:7a0:401:0::f",
-      "kavlan-18": "2001:660:4406:8a0:401:0::f",
-      "kavlan-2": "2001:660:4406:481:1:0::f",
-      "kavlan-20": "2001:660:4406:3a0:401:0::f",
-      "kavlan-21": "2001:660:4406:6a0:401:0::f",
-      "kavlan-3": "2001:660:4406:482:1:0::f",
-      "kavlan-4": "2001:660:4406:490:1:0::f",
-      "kavlan-5": "2001:660:4406:491:1:0::f",
-      "kavlan-6": "2001:660:4406:492:1:0::f",
-      "kavlan-7": "2001:660:4406:493:1:0::f",
-      "kavlan-8": "2001:660:4406:494:1:0::f",
-      "kavlan-9": "2001:660:4406:495:1:0::f"
+      "kavlan-1": "2001:660:4406:480:1::f",
+      "kavlan-11": "2001:660:4406:1a0:401::f",
+      "kavlan-12": "2001:660:4406:2a0:401::f",
+      "kavlan-13": "2001:660:4406:4a0:401::f",
+      "kavlan-14": "2001:660:4406:5a0:401::f",
+      "kavlan-16": "2001:660:4406:7a0:401::f",
+      "kavlan-18": "2001:660:4406:8a0:401::f",
+      "kavlan-2": "2001:660:4406:481:1::f",
+      "kavlan-20": "2001:660:4406:3a0:401::f",
+      "kavlan-21": "2001:660:4406:6a0:401::f",
+      "kavlan-3": "2001:660:4406:482:1::f",
+      "kavlan-4": "2001:660:4406:490:1::f",
+      "kavlan-5": "2001:660:4406:491:1::f",
+      "kavlan-6": "2001:660:4406:492:1::f",
+      "kavlan-7": "2001:660:4406:493:1::f",
+      "kavlan-8": "2001:660:4406:494:1::f",
+      "kavlan-9": "2001:660:4406:495:1::f"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.15",
-      "ip6": "2001:660:4406:400:1:0::f",
+      "ip6": "2001:660:4406:400:1::f",
       "kavlan": true,
       "mac": "a0:36:9f:09:c1:58",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-3.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-3.json
index fd05ddead96a6989b1c453367c7a2280e10c0886..f78df4d7ddbb0b20320d7d7b689e28d68a381b9d 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-3.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1:0::3",
-      "kavlan-11": "2001:660:4406:1a0:401:0::3",
-      "kavlan-12": "2001:660:4406:2a0:401:0::3",
-      "kavlan-13": "2001:660:4406:4a0:401:0::3",
-      "kavlan-14": "2001:660:4406:5a0:401:0::3",
-      "kavlan-16": "2001:660:4406:7a0:401:0::3",
-      "kavlan-18": "2001:660:4406:8a0:401:0::3",
-      "kavlan-2": "2001:660:4406:481:1:0::3",
-      "kavlan-20": "2001:660:4406:3a0:401:0::3",
-      "kavlan-21": "2001:660:4406:6a0:401:0::3",
-      "kavlan-3": "2001:660:4406:482:1:0::3",
-      "kavlan-4": "2001:660:4406:490:1:0::3",
-      "kavlan-5": "2001:660:4406:491:1:0::3",
-      "kavlan-6": "2001:660:4406:492:1:0::3",
-      "kavlan-7": "2001:660:4406:493:1:0::3",
-      "kavlan-8": "2001:660:4406:494:1:0::3",
-      "kavlan-9": "2001:660:4406:495:1:0::3"
+      "kavlan-1": "2001:660:4406:480:1::3",
+      "kavlan-11": "2001:660:4406:1a0:401::3",
+      "kavlan-12": "2001:660:4406:2a0:401::3",
+      "kavlan-13": "2001:660:4406:4a0:401::3",
+      "kavlan-14": "2001:660:4406:5a0:401::3",
+      "kavlan-16": "2001:660:4406:7a0:401::3",
+      "kavlan-18": "2001:660:4406:8a0:401::3",
+      "kavlan-2": "2001:660:4406:481:1::3",
+      "kavlan-20": "2001:660:4406:3a0:401::3",
+      "kavlan-21": "2001:660:4406:6a0:401::3",
+      "kavlan-3": "2001:660:4406:482:1::3",
+      "kavlan-4": "2001:660:4406:490:1::3",
+      "kavlan-5": "2001:660:4406:491:1::3",
+      "kavlan-6": "2001:660:4406:492:1::3",
+      "kavlan-7": "2001:660:4406:493:1::3",
+      "kavlan-8": "2001:660:4406:494:1::3",
+      "kavlan-9": "2001:660:4406:495:1::3"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.3",
-      "ip6": "2001:660:4406:400:1:0::3",
+      "ip6": "2001:660:4406:400:1::3",
       "kavlan": true,
       "mac": "a0:36:9f:09:c3:f8",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-4.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-4.json
index 15f2a6fa16f440ea74e2d1a7bf253b8e18b71bde..0f94609db7d57fa017f5a852e95fa12062e1edde 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-4.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1:0::4",
-      "kavlan-11": "2001:660:4406:1a0:401:0::4",
-      "kavlan-12": "2001:660:4406:2a0:401:0::4",
-      "kavlan-13": "2001:660:4406:4a0:401:0::4",
-      "kavlan-14": "2001:660:4406:5a0:401:0::4",
-      "kavlan-16": "2001:660:4406:7a0:401:0::4",
-      "kavlan-18": "2001:660:4406:8a0:401:0::4",
-      "kavlan-2": "2001:660:4406:481:1:0::4",
-      "kavlan-20": "2001:660:4406:3a0:401:0::4",
-      "kavlan-21": "2001:660:4406:6a0:401:0::4",
-      "kavlan-3": "2001:660:4406:482:1:0::4",
-      "kavlan-4": "2001:660:4406:490:1:0::4",
-      "kavlan-5": "2001:660:4406:491:1:0::4",
-      "kavlan-6": "2001:660:4406:492:1:0::4",
-      "kavlan-7": "2001:660:4406:493:1:0::4",
-      "kavlan-8": "2001:660:4406:494:1:0::4",
-      "kavlan-9": "2001:660:4406:495:1:0::4"
+      "kavlan-1": "2001:660:4406:480:1::4",
+      "kavlan-11": "2001:660:4406:1a0:401::4",
+      "kavlan-12": "2001:660:4406:2a0:401::4",
+      "kavlan-13": "2001:660:4406:4a0:401::4",
+      "kavlan-14": "2001:660:4406:5a0:401::4",
+      "kavlan-16": "2001:660:4406:7a0:401::4",
+      "kavlan-18": "2001:660:4406:8a0:401::4",
+      "kavlan-2": "2001:660:4406:481:1::4",
+      "kavlan-20": "2001:660:4406:3a0:401::4",
+      "kavlan-21": "2001:660:4406:6a0:401::4",
+      "kavlan-3": "2001:660:4406:482:1::4",
+      "kavlan-4": "2001:660:4406:490:1::4",
+      "kavlan-5": "2001:660:4406:491:1::4",
+      "kavlan-6": "2001:660:4406:492:1::4",
+      "kavlan-7": "2001:660:4406:493:1::4",
+      "kavlan-8": "2001:660:4406:494:1::4",
+      "kavlan-9": "2001:660:4406:495:1::4"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.4",
-      "ip6": "2001:660:4406:400:1:0::4",
+      "ip6": "2001:660:4406:400:1::4",
       "kavlan": true,
       "mac": "a0:36:9f:08:f8:6c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-5.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-5.json
index 174d73804e82b62f966afeb3c504dbf7ab203304..43a16d97283bcc405a26ffcb42ea4254bfb1238e 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-5.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1:0::5",
-      "kavlan-11": "2001:660:4406:1a0:401:0::5",
-      "kavlan-12": "2001:660:4406:2a0:401:0::5",
-      "kavlan-13": "2001:660:4406:4a0:401:0::5",
-      "kavlan-14": "2001:660:4406:5a0:401:0::5",
-      "kavlan-16": "2001:660:4406:7a0:401:0::5",
-      "kavlan-18": "2001:660:4406:8a0:401:0::5",
-      "kavlan-2": "2001:660:4406:481:1:0::5",
-      "kavlan-20": "2001:660:4406:3a0:401:0::5",
-      "kavlan-21": "2001:660:4406:6a0:401:0::5",
-      "kavlan-3": "2001:660:4406:482:1:0::5",
-      "kavlan-4": "2001:660:4406:490:1:0::5",
-      "kavlan-5": "2001:660:4406:491:1:0::5",
-      "kavlan-6": "2001:660:4406:492:1:0::5",
-      "kavlan-7": "2001:660:4406:493:1:0::5",
-      "kavlan-8": "2001:660:4406:494:1:0::5",
-      "kavlan-9": "2001:660:4406:495:1:0::5"
+      "kavlan-1": "2001:660:4406:480:1::5",
+      "kavlan-11": "2001:660:4406:1a0:401::5",
+      "kavlan-12": "2001:660:4406:2a0:401::5",
+      "kavlan-13": "2001:660:4406:4a0:401::5",
+      "kavlan-14": "2001:660:4406:5a0:401::5",
+      "kavlan-16": "2001:660:4406:7a0:401::5",
+      "kavlan-18": "2001:660:4406:8a0:401::5",
+      "kavlan-2": "2001:660:4406:481:1::5",
+      "kavlan-20": "2001:660:4406:3a0:401::5",
+      "kavlan-21": "2001:660:4406:6a0:401::5",
+      "kavlan-3": "2001:660:4406:482:1::5",
+      "kavlan-4": "2001:660:4406:490:1::5",
+      "kavlan-5": "2001:660:4406:491:1::5",
+      "kavlan-6": "2001:660:4406:492:1::5",
+      "kavlan-7": "2001:660:4406:493:1::5",
+      "kavlan-8": "2001:660:4406:494:1::5",
+      "kavlan-9": "2001:660:4406:495:1::5"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.5",
-      "ip6": "2001:660:4406:400:1:0::5",
+      "ip6": "2001:660:4406:400:1::5",
       "kavlan": true,
       "mac": "a0:36:9f:09:c3:24",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-6.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-6.json
index 932f633d606fabc9fdc619f82a1e527f6a126c7d..410e9021246463110005833e552511deec818457 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-6.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1:0::6",
-      "kavlan-11": "2001:660:4406:1a0:401:0::6",
-      "kavlan-12": "2001:660:4406:2a0:401:0::6",
-      "kavlan-13": "2001:660:4406:4a0:401:0::6",
-      "kavlan-14": "2001:660:4406:5a0:401:0::6",
-      "kavlan-16": "2001:660:4406:7a0:401:0::6",
-      "kavlan-18": "2001:660:4406:8a0:401:0::6",
-      "kavlan-2": "2001:660:4406:481:1:0::6",
-      "kavlan-20": "2001:660:4406:3a0:401:0::6",
-      "kavlan-21": "2001:660:4406:6a0:401:0::6",
-      "kavlan-3": "2001:660:4406:482:1:0::6",
-      "kavlan-4": "2001:660:4406:490:1:0::6",
-      "kavlan-5": "2001:660:4406:491:1:0::6",
-      "kavlan-6": "2001:660:4406:492:1:0::6",
-      "kavlan-7": "2001:660:4406:493:1:0::6",
-      "kavlan-8": "2001:660:4406:494:1:0::6",
-      "kavlan-9": "2001:660:4406:495:1:0::6"
+      "kavlan-1": "2001:660:4406:480:1::6",
+      "kavlan-11": "2001:660:4406:1a0:401::6",
+      "kavlan-12": "2001:660:4406:2a0:401::6",
+      "kavlan-13": "2001:660:4406:4a0:401::6",
+      "kavlan-14": "2001:660:4406:5a0:401::6",
+      "kavlan-16": "2001:660:4406:7a0:401::6",
+      "kavlan-18": "2001:660:4406:8a0:401::6",
+      "kavlan-2": "2001:660:4406:481:1::6",
+      "kavlan-20": "2001:660:4406:3a0:401::6",
+      "kavlan-21": "2001:660:4406:6a0:401::6",
+      "kavlan-3": "2001:660:4406:482:1::6",
+      "kavlan-4": "2001:660:4406:490:1::6",
+      "kavlan-5": "2001:660:4406:491:1::6",
+      "kavlan-6": "2001:660:4406:492:1::6",
+      "kavlan-7": "2001:660:4406:493:1::6",
+      "kavlan-8": "2001:660:4406:494:1::6",
+      "kavlan-9": "2001:660:4406:495:1::6"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.6",
-      "ip6": "2001:660:4406:400:1:0::6",
+      "ip6": "2001:660:4406:400:1::6",
       "kavlan": true,
       "mac": "a0:36:9f:08:fb:08",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-7.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-7.json
index c7f289b550ee2d97a8aac5cc62e32c0837944d72..381bf32ea1396bccde1eb29b0e6a10c420b54583 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-7.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1:0::7",
-      "kavlan-11": "2001:660:4406:1a0:401:0::7",
-      "kavlan-12": "2001:660:4406:2a0:401:0::7",
-      "kavlan-13": "2001:660:4406:4a0:401:0::7",
-      "kavlan-14": "2001:660:4406:5a0:401:0::7",
-      "kavlan-16": "2001:660:4406:7a0:401:0::7",
-      "kavlan-18": "2001:660:4406:8a0:401:0::7",
-      "kavlan-2": "2001:660:4406:481:1:0::7",
-      "kavlan-20": "2001:660:4406:3a0:401:0::7",
-      "kavlan-21": "2001:660:4406:6a0:401:0::7",
-      "kavlan-3": "2001:660:4406:482:1:0::7",
-      "kavlan-4": "2001:660:4406:490:1:0::7",
-      "kavlan-5": "2001:660:4406:491:1:0::7",
-      "kavlan-6": "2001:660:4406:492:1:0::7",
-      "kavlan-7": "2001:660:4406:493:1:0::7",
-      "kavlan-8": "2001:660:4406:494:1:0::7",
-      "kavlan-9": "2001:660:4406:495:1:0::7"
+      "kavlan-1": "2001:660:4406:480:1::7",
+      "kavlan-11": "2001:660:4406:1a0:401::7",
+      "kavlan-12": "2001:660:4406:2a0:401::7",
+      "kavlan-13": "2001:660:4406:4a0:401::7",
+      "kavlan-14": "2001:660:4406:5a0:401::7",
+      "kavlan-16": "2001:660:4406:7a0:401::7",
+      "kavlan-18": "2001:660:4406:8a0:401::7",
+      "kavlan-2": "2001:660:4406:481:1::7",
+      "kavlan-20": "2001:660:4406:3a0:401::7",
+      "kavlan-21": "2001:660:4406:6a0:401::7",
+      "kavlan-3": "2001:660:4406:482:1::7",
+      "kavlan-4": "2001:660:4406:490:1::7",
+      "kavlan-5": "2001:660:4406:491:1::7",
+      "kavlan-6": "2001:660:4406:492:1::7",
+      "kavlan-7": "2001:660:4406:493:1::7",
+      "kavlan-8": "2001:660:4406:494:1::7",
+      "kavlan-9": "2001:660:4406:495:1::7"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.7",
-      "ip6": "2001:660:4406:400:1:0::7",
+      "ip6": "2001:660:4406:400:1::7",
       "kavlan": true,
       "mac": "a0:36:9f:09:c2:f8",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-8.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-8.json
index efbbc9f9329a77216163f9c23a884c2861daff39..c2469660052b2d13a1d000cdac29101c846e6241 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-8.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1:0::8",
-      "kavlan-11": "2001:660:4406:1a0:401:0::8",
-      "kavlan-12": "2001:660:4406:2a0:401:0::8",
-      "kavlan-13": "2001:660:4406:4a0:401:0::8",
-      "kavlan-14": "2001:660:4406:5a0:401:0::8",
-      "kavlan-16": "2001:660:4406:7a0:401:0::8",
-      "kavlan-18": "2001:660:4406:8a0:401:0::8",
-      "kavlan-2": "2001:660:4406:481:1:0::8",
-      "kavlan-20": "2001:660:4406:3a0:401:0::8",
-      "kavlan-21": "2001:660:4406:6a0:401:0::8",
-      "kavlan-3": "2001:660:4406:482:1:0::8",
-      "kavlan-4": "2001:660:4406:490:1:0::8",
-      "kavlan-5": "2001:660:4406:491:1:0::8",
-      "kavlan-6": "2001:660:4406:492:1:0::8",
-      "kavlan-7": "2001:660:4406:493:1:0::8",
-      "kavlan-8": "2001:660:4406:494:1:0::8",
-      "kavlan-9": "2001:660:4406:495:1:0::8"
+      "kavlan-1": "2001:660:4406:480:1::8",
+      "kavlan-11": "2001:660:4406:1a0:401::8",
+      "kavlan-12": "2001:660:4406:2a0:401::8",
+      "kavlan-13": "2001:660:4406:4a0:401::8",
+      "kavlan-14": "2001:660:4406:5a0:401::8",
+      "kavlan-16": "2001:660:4406:7a0:401::8",
+      "kavlan-18": "2001:660:4406:8a0:401::8",
+      "kavlan-2": "2001:660:4406:481:1::8",
+      "kavlan-20": "2001:660:4406:3a0:401::8",
+      "kavlan-21": "2001:660:4406:6a0:401::8",
+      "kavlan-3": "2001:660:4406:482:1::8",
+      "kavlan-4": "2001:660:4406:490:1::8",
+      "kavlan-5": "2001:660:4406:491:1::8",
+      "kavlan-6": "2001:660:4406:492:1::8",
+      "kavlan-7": "2001:660:4406:493:1::8",
+      "kavlan-8": "2001:660:4406:494:1::8",
+      "kavlan-9": "2001:660:4406:495:1::8"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.8",
-      "ip6": "2001:660:4406:400:1:0::8",
+      "ip6": "2001:660:4406:400:1::8",
       "kavlan": true,
       "mac": "a0:36:9f:09:c0:14",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-9.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-9.json
index 8714117c05db6d972baf425656ed90e41369b36a..170b12301b64fc1d32040ed6921dc20c7251ab9b 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-9.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1:0::9",
-      "kavlan-11": "2001:660:4406:1a0:401:0::9",
-      "kavlan-12": "2001:660:4406:2a0:401:0::9",
-      "kavlan-13": "2001:660:4406:4a0:401:0::9",
-      "kavlan-14": "2001:660:4406:5a0:401:0::9",
-      "kavlan-16": "2001:660:4406:7a0:401:0::9",
-      "kavlan-18": "2001:660:4406:8a0:401:0::9",
-      "kavlan-2": "2001:660:4406:481:1:0::9",
-      "kavlan-20": "2001:660:4406:3a0:401:0::9",
-      "kavlan-21": "2001:660:4406:6a0:401:0::9",
-      "kavlan-3": "2001:660:4406:482:1:0::9",
-      "kavlan-4": "2001:660:4406:490:1:0::9",
-      "kavlan-5": "2001:660:4406:491:1:0::9",
-      "kavlan-6": "2001:660:4406:492:1:0::9",
-      "kavlan-7": "2001:660:4406:493:1:0::9",
-      "kavlan-8": "2001:660:4406:494:1:0::9",
-      "kavlan-9": "2001:660:4406:495:1:0::9"
+      "kavlan-1": "2001:660:4406:480:1::9",
+      "kavlan-11": "2001:660:4406:1a0:401::9",
+      "kavlan-12": "2001:660:4406:2a0:401::9",
+      "kavlan-13": "2001:660:4406:4a0:401::9",
+      "kavlan-14": "2001:660:4406:5a0:401::9",
+      "kavlan-16": "2001:660:4406:7a0:401::9",
+      "kavlan-18": "2001:660:4406:8a0:401::9",
+      "kavlan-2": "2001:660:4406:481:1::9",
+      "kavlan-20": "2001:660:4406:3a0:401::9",
+      "kavlan-21": "2001:660:4406:6a0:401::9",
+      "kavlan-3": "2001:660:4406:482:1::9",
+      "kavlan-4": "2001:660:4406:490:1::9",
+      "kavlan-5": "2001:660:4406:491:1::9",
+      "kavlan-6": "2001:660:4406:492:1::9",
+      "kavlan-7": "2001:660:4406:493:1::9",
+      "kavlan-8": "2001:660:4406:494:1::9",
+      "kavlan-9": "2001:660:4406:495:1::9"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.9",
-      "ip6": "2001:660:4406:400:1:0::9",
+      "ip6": "2001:660:4406:400:1::9",
       "kavlan": true,
       "mac": "a0:36:9f:08:f8:48",
       "management": false,
diff --git a/data/grid5000/sites/lyon/lyon.json b/data/grid5000/sites/lyon/lyon.json
index 043c307f10c006de42539f62645698085a269f69..fa1af2d2a4f011c0dba976924f951cd52185a418 100644
--- a/data/grid5000/sites/lyon/lyon.json
+++ b/data/grid5000/sites/lyon/lyon.json
@@ -8,7 +8,7 @@
     "network": "10.140.0.0/14"
   },
   "ipv6": {
-    "prefix": "2001:660:4406:04",
+    "prefix": "2001:660:4406:400::/56",
     "site_global_kavlan": 13,
     "site_index": 4
   },
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-1.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-1.json
index 70f328886831129b767c3be54fe9b3ea6b598c7f..7d28db35b389e3d108a5a569a49d69ffacec838f 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-1.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-1.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1:0::1",
-      "kavlan-11": "2001:660:4406:1a0:501:0::1",
-      "kavlan-12": "2001:660:4406:2a0:501:0::1",
-      "kavlan-13": "2001:660:4406:4a0:501:0::1",
-      "kavlan-14": "2001:660:4406:5a0:501:0::1",
-      "kavlan-16": "2001:660:4406:7a0:501:0::1",
-      "kavlan-18": "2001:660:4406:8a0:501:0::1",
-      "kavlan-2": "2001:660:4406:581:1:0::1",
-      "kavlan-20": "2001:660:4406:3a0:501:0::1",
-      "kavlan-21": "2001:660:4406:6a0:501:0::1",
-      "kavlan-3": "2001:660:4406:582:1:0::1",
-      "kavlan-4": "2001:660:4406:590:1:0::1",
-      "kavlan-5": "2001:660:4406:591:1:0::1",
-      "kavlan-6": "2001:660:4406:592:1:0::1",
-      "kavlan-7": "2001:660:4406:593:1:0::1",
-      "kavlan-8": "2001:660:4406:594:1:0::1",
-      "kavlan-9": "2001:660:4406:595:1:0::1"
+      "kavlan-1": "2001:660:4406:580:1::1",
+      "kavlan-11": "2001:660:4406:1a0:501::1",
+      "kavlan-12": "2001:660:4406:2a0:501::1",
+      "kavlan-13": "2001:660:4406:4a0:501::1",
+      "kavlan-14": "2001:660:4406:5a0:501::1",
+      "kavlan-16": "2001:660:4406:7a0:501::1",
+      "kavlan-18": "2001:660:4406:8a0:501::1",
+      "kavlan-2": "2001:660:4406:581:1::1",
+      "kavlan-20": "2001:660:4406:3a0:501::1",
+      "kavlan-21": "2001:660:4406:6a0:501::1",
+      "kavlan-3": "2001:660:4406:582:1::1",
+      "kavlan-4": "2001:660:4406:590:1::1",
+      "kavlan-5": "2001:660:4406:591:1::1",
+      "kavlan-6": "2001:660:4406:592:1::1",
+      "kavlan-7": "2001:660:4406:593:1::1",
+      "kavlan-8": "2001:660:4406:594:1::1",
+      "kavlan-9": "2001:660:4406:595:1::1"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.1",
-      "ip6": "2001:660:4406:500:1:0::1",
+      "ip6": "2001:660:4406:500:1::1",
       "kavlan": true,
       "mac": "f8:f2:1e:60:41:20",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-10.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-10.json
index 2366334d99759bbfa6d947f9bf8ef575c285e91a..bbed08823ada57cdf4772bc21434d7b361701a8e 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-10.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-10.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1:0::a",
-      "kavlan-11": "2001:660:4406:1a0:501:0::a",
-      "kavlan-12": "2001:660:4406:2a0:501:0::a",
-      "kavlan-13": "2001:660:4406:4a0:501:0::a",
-      "kavlan-14": "2001:660:4406:5a0:501:0::a",
-      "kavlan-16": "2001:660:4406:7a0:501:0::a",
-      "kavlan-18": "2001:660:4406:8a0:501:0::a",
-      "kavlan-2": "2001:660:4406:581:1:0::a",
-      "kavlan-20": "2001:660:4406:3a0:501:0::a",
-      "kavlan-21": "2001:660:4406:6a0:501:0::a",
-      "kavlan-3": "2001:660:4406:582:1:0::a",
-      "kavlan-4": "2001:660:4406:590:1:0::a",
-      "kavlan-5": "2001:660:4406:591:1:0::a",
-      "kavlan-6": "2001:660:4406:592:1:0::a",
-      "kavlan-7": "2001:660:4406:593:1:0::a",
-      "kavlan-8": "2001:660:4406:594:1:0::a",
-      "kavlan-9": "2001:660:4406:595:1:0::a"
+      "kavlan-1": "2001:660:4406:580:1::a",
+      "kavlan-11": "2001:660:4406:1a0:501::a",
+      "kavlan-12": "2001:660:4406:2a0:501::a",
+      "kavlan-13": "2001:660:4406:4a0:501::a",
+      "kavlan-14": "2001:660:4406:5a0:501::a",
+      "kavlan-16": "2001:660:4406:7a0:501::a",
+      "kavlan-18": "2001:660:4406:8a0:501::a",
+      "kavlan-2": "2001:660:4406:581:1::a",
+      "kavlan-20": "2001:660:4406:3a0:501::a",
+      "kavlan-21": "2001:660:4406:6a0:501::a",
+      "kavlan-3": "2001:660:4406:582:1::a",
+      "kavlan-4": "2001:660:4406:590:1::a",
+      "kavlan-5": "2001:660:4406:591:1::a",
+      "kavlan-6": "2001:660:4406:592:1::a",
+      "kavlan-7": "2001:660:4406:593:1::a",
+      "kavlan-8": "2001:660:4406:594:1::a",
+      "kavlan-9": "2001:660:4406:595:1::a"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.10",
-      "ip6": "2001:660:4406:500:1:0::a",
+      "ip6": "2001:660:4406:500:1::a",
       "kavlan": true,
       "mac": "f8:f2:1e:60:2b:c0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-11.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-11.json
index a4b2aa22cd05856195529e4ecc61eb885f4993ce..a4f7203b46fa95c79b27aeea8a76ad5dc7e887ea 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-11.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-11.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1:0::b",
-      "kavlan-11": "2001:660:4406:1a0:501:0::b",
-      "kavlan-12": "2001:660:4406:2a0:501:0::b",
-      "kavlan-13": "2001:660:4406:4a0:501:0::b",
-      "kavlan-14": "2001:660:4406:5a0:501:0::b",
-      "kavlan-16": "2001:660:4406:7a0:501:0::b",
-      "kavlan-18": "2001:660:4406:8a0:501:0::b",
-      "kavlan-2": "2001:660:4406:581:1:0::b",
-      "kavlan-20": "2001:660:4406:3a0:501:0::b",
-      "kavlan-21": "2001:660:4406:6a0:501:0::b",
-      "kavlan-3": "2001:660:4406:582:1:0::b",
-      "kavlan-4": "2001:660:4406:590:1:0::b",
-      "kavlan-5": "2001:660:4406:591:1:0::b",
-      "kavlan-6": "2001:660:4406:592:1:0::b",
-      "kavlan-7": "2001:660:4406:593:1:0::b",
-      "kavlan-8": "2001:660:4406:594:1:0::b",
-      "kavlan-9": "2001:660:4406:595:1:0::b"
+      "kavlan-1": "2001:660:4406:580:1::b",
+      "kavlan-11": "2001:660:4406:1a0:501::b",
+      "kavlan-12": "2001:660:4406:2a0:501::b",
+      "kavlan-13": "2001:660:4406:4a0:501::b",
+      "kavlan-14": "2001:660:4406:5a0:501::b",
+      "kavlan-16": "2001:660:4406:7a0:501::b",
+      "kavlan-18": "2001:660:4406:8a0:501::b",
+      "kavlan-2": "2001:660:4406:581:1::b",
+      "kavlan-20": "2001:660:4406:3a0:501::b",
+      "kavlan-21": "2001:660:4406:6a0:501::b",
+      "kavlan-3": "2001:660:4406:582:1::b",
+      "kavlan-4": "2001:660:4406:590:1::b",
+      "kavlan-5": "2001:660:4406:591:1::b",
+      "kavlan-6": "2001:660:4406:592:1::b",
+      "kavlan-7": "2001:660:4406:593:1::b",
+      "kavlan-8": "2001:660:4406:594:1::b",
+      "kavlan-9": "2001:660:4406:595:1::b"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.11",
-      "ip6": "2001:660:4406:500:1:0::b",
+      "ip6": "2001:660:4406:500:1::b",
       "kavlan": true,
       "mac": "f8:f2:1e:60:3f:90",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-12.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-12.json
index 272eebef60e32122452a46d7ec26d5e95104713f..e76e4e82393f15c4603be777dc235e7a4ef18c08 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-12.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-12.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1:0::c",
-      "kavlan-11": "2001:660:4406:1a0:501:0::c",
-      "kavlan-12": "2001:660:4406:2a0:501:0::c",
-      "kavlan-13": "2001:660:4406:4a0:501:0::c",
-      "kavlan-14": "2001:660:4406:5a0:501:0::c",
-      "kavlan-16": "2001:660:4406:7a0:501:0::c",
-      "kavlan-18": "2001:660:4406:8a0:501:0::c",
-      "kavlan-2": "2001:660:4406:581:1:0::c",
-      "kavlan-20": "2001:660:4406:3a0:501:0::c",
-      "kavlan-21": "2001:660:4406:6a0:501:0::c",
-      "kavlan-3": "2001:660:4406:582:1:0::c",
-      "kavlan-4": "2001:660:4406:590:1:0::c",
-      "kavlan-5": "2001:660:4406:591:1:0::c",
-      "kavlan-6": "2001:660:4406:592:1:0::c",
-      "kavlan-7": "2001:660:4406:593:1:0::c",
-      "kavlan-8": "2001:660:4406:594:1:0::c",
-      "kavlan-9": "2001:660:4406:595:1:0::c"
+      "kavlan-1": "2001:660:4406:580:1::c",
+      "kavlan-11": "2001:660:4406:1a0:501::c",
+      "kavlan-12": "2001:660:4406:2a0:501::c",
+      "kavlan-13": "2001:660:4406:4a0:501::c",
+      "kavlan-14": "2001:660:4406:5a0:501::c",
+      "kavlan-16": "2001:660:4406:7a0:501::c",
+      "kavlan-18": "2001:660:4406:8a0:501::c",
+      "kavlan-2": "2001:660:4406:581:1::c",
+      "kavlan-20": "2001:660:4406:3a0:501::c",
+      "kavlan-21": "2001:660:4406:6a0:501::c",
+      "kavlan-3": "2001:660:4406:582:1::c",
+      "kavlan-4": "2001:660:4406:590:1::c",
+      "kavlan-5": "2001:660:4406:591:1::c",
+      "kavlan-6": "2001:660:4406:592:1::c",
+      "kavlan-7": "2001:660:4406:593:1::c",
+      "kavlan-8": "2001:660:4406:594:1::c",
+      "kavlan-9": "2001:660:4406:595:1::c"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.12",
-      "ip6": "2001:660:4406:500:1:0::c",
+      "ip6": "2001:660:4406:500:1::c",
       "kavlan": true,
       "mac": "f8:f2:1e:60:32:00",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-13.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-13.json
index b5f46e85f667a80dd3bea2f9a11bbc1a1bfc8202..7a3a219b3ebf6ba44ec731cd3d806a36ce928d48 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-13.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-13.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1:0::d",
-      "kavlan-11": "2001:660:4406:1a0:501:0::d",
-      "kavlan-12": "2001:660:4406:2a0:501:0::d",
-      "kavlan-13": "2001:660:4406:4a0:501:0::d",
-      "kavlan-14": "2001:660:4406:5a0:501:0::d",
-      "kavlan-16": "2001:660:4406:7a0:501:0::d",
-      "kavlan-18": "2001:660:4406:8a0:501:0::d",
-      "kavlan-2": "2001:660:4406:581:1:0::d",
-      "kavlan-20": "2001:660:4406:3a0:501:0::d",
-      "kavlan-21": "2001:660:4406:6a0:501:0::d",
-      "kavlan-3": "2001:660:4406:582:1:0::d",
-      "kavlan-4": "2001:660:4406:590:1:0::d",
-      "kavlan-5": "2001:660:4406:591:1:0::d",
-      "kavlan-6": "2001:660:4406:592:1:0::d",
-      "kavlan-7": "2001:660:4406:593:1:0::d",
-      "kavlan-8": "2001:660:4406:594:1:0::d",
-      "kavlan-9": "2001:660:4406:595:1:0::d"
+      "kavlan-1": "2001:660:4406:580:1::d",
+      "kavlan-11": "2001:660:4406:1a0:501::d",
+      "kavlan-12": "2001:660:4406:2a0:501::d",
+      "kavlan-13": "2001:660:4406:4a0:501::d",
+      "kavlan-14": "2001:660:4406:5a0:501::d",
+      "kavlan-16": "2001:660:4406:7a0:501::d",
+      "kavlan-18": "2001:660:4406:8a0:501::d",
+      "kavlan-2": "2001:660:4406:581:1::d",
+      "kavlan-20": "2001:660:4406:3a0:501::d",
+      "kavlan-21": "2001:660:4406:6a0:501::d",
+      "kavlan-3": "2001:660:4406:582:1::d",
+      "kavlan-4": "2001:660:4406:590:1::d",
+      "kavlan-5": "2001:660:4406:591:1::d",
+      "kavlan-6": "2001:660:4406:592:1::d",
+      "kavlan-7": "2001:660:4406:593:1::d",
+      "kavlan-8": "2001:660:4406:594:1::d",
+      "kavlan-9": "2001:660:4406:595:1::d"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.13",
-      "ip6": "2001:660:4406:500:1:0::d",
+      "ip6": "2001:660:4406:500:1::d",
       "kavlan": true,
       "mac": "f8:f2:1e:60:57:60",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-2.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-2.json
index 24769141ad37e023e0381690c5ea776fa5151417..746a7b95179c32140b9a4d7947ca0113cb3f7ff4 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-2.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-2.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1:0::2",
-      "kavlan-11": "2001:660:4406:1a0:501:0::2",
-      "kavlan-12": "2001:660:4406:2a0:501:0::2",
-      "kavlan-13": "2001:660:4406:4a0:501:0::2",
-      "kavlan-14": "2001:660:4406:5a0:501:0::2",
-      "kavlan-16": "2001:660:4406:7a0:501:0::2",
-      "kavlan-18": "2001:660:4406:8a0:501:0::2",
-      "kavlan-2": "2001:660:4406:581:1:0::2",
-      "kavlan-20": "2001:660:4406:3a0:501:0::2",
-      "kavlan-21": "2001:660:4406:6a0:501:0::2",
-      "kavlan-3": "2001:660:4406:582:1:0::2",
-      "kavlan-4": "2001:660:4406:590:1:0::2",
-      "kavlan-5": "2001:660:4406:591:1:0::2",
-      "kavlan-6": "2001:660:4406:592:1:0::2",
-      "kavlan-7": "2001:660:4406:593:1:0::2",
-      "kavlan-8": "2001:660:4406:594:1:0::2",
-      "kavlan-9": "2001:660:4406:595:1:0::2"
+      "kavlan-1": "2001:660:4406:580:1::2",
+      "kavlan-11": "2001:660:4406:1a0:501::2",
+      "kavlan-12": "2001:660:4406:2a0:501::2",
+      "kavlan-13": "2001:660:4406:4a0:501::2",
+      "kavlan-14": "2001:660:4406:5a0:501::2",
+      "kavlan-16": "2001:660:4406:7a0:501::2",
+      "kavlan-18": "2001:660:4406:8a0:501::2",
+      "kavlan-2": "2001:660:4406:581:1::2",
+      "kavlan-20": "2001:660:4406:3a0:501::2",
+      "kavlan-21": "2001:660:4406:6a0:501::2",
+      "kavlan-3": "2001:660:4406:582:1::2",
+      "kavlan-4": "2001:660:4406:590:1::2",
+      "kavlan-5": "2001:660:4406:591:1::2",
+      "kavlan-6": "2001:660:4406:592:1::2",
+      "kavlan-7": "2001:660:4406:593:1::2",
+      "kavlan-8": "2001:660:4406:594:1::2",
+      "kavlan-9": "2001:660:4406:595:1::2"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.2",
-      "ip6": "2001:660:4406:500:1:0::2",
+      "ip6": "2001:660:4406:500:1::2",
       "kavlan": true,
       "mac": "f8:f2:1e:60:3f:a0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-3.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-3.json
index b3dd469230fceba6aee1d518b34a231354bb59e1..6d2182765c1a6e94110bd4c2b4b1f8a6d5990b6f 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-3.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-3.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1:0::3",
-      "kavlan-11": "2001:660:4406:1a0:501:0::3",
-      "kavlan-12": "2001:660:4406:2a0:501:0::3",
-      "kavlan-13": "2001:660:4406:4a0:501:0::3",
-      "kavlan-14": "2001:660:4406:5a0:501:0::3",
-      "kavlan-16": "2001:660:4406:7a0:501:0::3",
-      "kavlan-18": "2001:660:4406:8a0:501:0::3",
-      "kavlan-2": "2001:660:4406:581:1:0::3",
-      "kavlan-20": "2001:660:4406:3a0:501:0::3",
-      "kavlan-21": "2001:660:4406:6a0:501:0::3",
-      "kavlan-3": "2001:660:4406:582:1:0::3",
-      "kavlan-4": "2001:660:4406:590:1:0::3",
-      "kavlan-5": "2001:660:4406:591:1:0::3",
-      "kavlan-6": "2001:660:4406:592:1:0::3",
-      "kavlan-7": "2001:660:4406:593:1:0::3",
-      "kavlan-8": "2001:660:4406:594:1:0::3",
-      "kavlan-9": "2001:660:4406:595:1:0::3"
+      "kavlan-1": "2001:660:4406:580:1::3",
+      "kavlan-11": "2001:660:4406:1a0:501::3",
+      "kavlan-12": "2001:660:4406:2a0:501::3",
+      "kavlan-13": "2001:660:4406:4a0:501::3",
+      "kavlan-14": "2001:660:4406:5a0:501::3",
+      "kavlan-16": "2001:660:4406:7a0:501::3",
+      "kavlan-18": "2001:660:4406:8a0:501::3",
+      "kavlan-2": "2001:660:4406:581:1::3",
+      "kavlan-20": "2001:660:4406:3a0:501::3",
+      "kavlan-21": "2001:660:4406:6a0:501::3",
+      "kavlan-3": "2001:660:4406:582:1::3",
+      "kavlan-4": "2001:660:4406:590:1::3",
+      "kavlan-5": "2001:660:4406:591:1::3",
+      "kavlan-6": "2001:660:4406:592:1::3",
+      "kavlan-7": "2001:660:4406:593:1::3",
+      "kavlan-8": "2001:660:4406:594:1::3",
+      "kavlan-9": "2001:660:4406:595:1::3"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.3",
-      "ip6": "2001:660:4406:500:1:0::3",
+      "ip6": "2001:660:4406:500:1::3",
       "kavlan": true,
       "mac": "f8:f2:1e:60:41:90",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-4.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-4.json
index a02af8e06720f5e329e9a76cf1f8b57fb9e24c3b..040715f3dec0913c35609691f2c193525850edde 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-4.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-4.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1:0::4",
-      "kavlan-11": "2001:660:4406:1a0:501:0::4",
-      "kavlan-12": "2001:660:4406:2a0:501:0::4",
-      "kavlan-13": "2001:660:4406:4a0:501:0::4",
-      "kavlan-14": "2001:660:4406:5a0:501:0::4",
-      "kavlan-16": "2001:660:4406:7a0:501:0::4",
-      "kavlan-18": "2001:660:4406:8a0:501:0::4",
-      "kavlan-2": "2001:660:4406:581:1:0::4",
-      "kavlan-20": "2001:660:4406:3a0:501:0::4",
-      "kavlan-21": "2001:660:4406:6a0:501:0::4",
-      "kavlan-3": "2001:660:4406:582:1:0::4",
-      "kavlan-4": "2001:660:4406:590:1:0::4",
-      "kavlan-5": "2001:660:4406:591:1:0::4",
-      "kavlan-6": "2001:660:4406:592:1:0::4",
-      "kavlan-7": "2001:660:4406:593:1:0::4",
-      "kavlan-8": "2001:660:4406:594:1:0::4",
-      "kavlan-9": "2001:660:4406:595:1:0::4"
+      "kavlan-1": "2001:660:4406:580:1::4",
+      "kavlan-11": "2001:660:4406:1a0:501::4",
+      "kavlan-12": "2001:660:4406:2a0:501::4",
+      "kavlan-13": "2001:660:4406:4a0:501::4",
+      "kavlan-14": "2001:660:4406:5a0:501::4",
+      "kavlan-16": "2001:660:4406:7a0:501::4",
+      "kavlan-18": "2001:660:4406:8a0:501::4",
+      "kavlan-2": "2001:660:4406:581:1::4",
+      "kavlan-20": "2001:660:4406:3a0:501::4",
+      "kavlan-21": "2001:660:4406:6a0:501::4",
+      "kavlan-3": "2001:660:4406:582:1::4",
+      "kavlan-4": "2001:660:4406:590:1::4",
+      "kavlan-5": "2001:660:4406:591:1::4",
+      "kavlan-6": "2001:660:4406:592:1::4",
+      "kavlan-7": "2001:660:4406:593:1::4",
+      "kavlan-8": "2001:660:4406:594:1::4",
+      "kavlan-9": "2001:660:4406:595:1::4"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.4",
-      "ip6": "2001:660:4406:500:1:0::4",
+      "ip6": "2001:660:4406:500:1::4",
       "kavlan": true,
       "mac": "f8:f2:1e:60:28:40",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-5.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-5.json
index c545a5de8f33c953ff4f61f5ab3aa1933cda7eec..bbab7a49ed062c4a5122305d074e746073ac743b 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-5.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-5.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1:0::5",
-      "kavlan-11": "2001:660:4406:1a0:501:0::5",
-      "kavlan-12": "2001:660:4406:2a0:501:0::5",
-      "kavlan-13": "2001:660:4406:4a0:501:0::5",
-      "kavlan-14": "2001:660:4406:5a0:501:0::5",
-      "kavlan-16": "2001:660:4406:7a0:501:0::5",
-      "kavlan-18": "2001:660:4406:8a0:501:0::5",
-      "kavlan-2": "2001:660:4406:581:1:0::5",
-      "kavlan-20": "2001:660:4406:3a0:501:0::5",
-      "kavlan-21": "2001:660:4406:6a0:501:0::5",
-      "kavlan-3": "2001:660:4406:582:1:0::5",
-      "kavlan-4": "2001:660:4406:590:1:0::5",
-      "kavlan-5": "2001:660:4406:591:1:0::5",
-      "kavlan-6": "2001:660:4406:592:1:0::5",
-      "kavlan-7": "2001:660:4406:593:1:0::5",
-      "kavlan-8": "2001:660:4406:594:1:0::5",
-      "kavlan-9": "2001:660:4406:595:1:0::5"
+      "kavlan-1": "2001:660:4406:580:1::5",
+      "kavlan-11": "2001:660:4406:1a0:501::5",
+      "kavlan-12": "2001:660:4406:2a0:501::5",
+      "kavlan-13": "2001:660:4406:4a0:501::5",
+      "kavlan-14": "2001:660:4406:5a0:501::5",
+      "kavlan-16": "2001:660:4406:7a0:501::5",
+      "kavlan-18": "2001:660:4406:8a0:501::5",
+      "kavlan-2": "2001:660:4406:581:1::5",
+      "kavlan-20": "2001:660:4406:3a0:501::5",
+      "kavlan-21": "2001:660:4406:6a0:501::5",
+      "kavlan-3": "2001:660:4406:582:1::5",
+      "kavlan-4": "2001:660:4406:590:1::5",
+      "kavlan-5": "2001:660:4406:591:1::5",
+      "kavlan-6": "2001:660:4406:592:1::5",
+      "kavlan-7": "2001:660:4406:593:1::5",
+      "kavlan-8": "2001:660:4406:594:1::5",
+      "kavlan-9": "2001:660:4406:595:1::5"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.5",
-      "ip6": "2001:660:4406:500:1:0::5",
+      "ip6": "2001:660:4406:500:1::5",
       "kavlan": true,
       "mac": "f8:f2:1e:60:28:20",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-6.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-6.json
index 01a7697cb6d40b4f71e23e1cffe358d7384c14c0..7c9a0d4b8c34e248178d79090d5439c42db0c81f 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-6.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-6.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1:0::6",
-      "kavlan-11": "2001:660:4406:1a0:501:0::6",
-      "kavlan-12": "2001:660:4406:2a0:501:0::6",
-      "kavlan-13": "2001:660:4406:4a0:501:0::6",
-      "kavlan-14": "2001:660:4406:5a0:501:0::6",
-      "kavlan-16": "2001:660:4406:7a0:501:0::6",
-      "kavlan-18": "2001:660:4406:8a0:501:0::6",
-      "kavlan-2": "2001:660:4406:581:1:0::6",
-      "kavlan-20": "2001:660:4406:3a0:501:0::6",
-      "kavlan-21": "2001:660:4406:6a0:501:0::6",
-      "kavlan-3": "2001:660:4406:582:1:0::6",
-      "kavlan-4": "2001:660:4406:590:1:0::6",
-      "kavlan-5": "2001:660:4406:591:1:0::6",
-      "kavlan-6": "2001:660:4406:592:1:0::6",
-      "kavlan-7": "2001:660:4406:593:1:0::6",
-      "kavlan-8": "2001:660:4406:594:1:0::6",
-      "kavlan-9": "2001:660:4406:595:1:0::6"
+      "kavlan-1": "2001:660:4406:580:1::6",
+      "kavlan-11": "2001:660:4406:1a0:501::6",
+      "kavlan-12": "2001:660:4406:2a0:501::6",
+      "kavlan-13": "2001:660:4406:4a0:501::6",
+      "kavlan-14": "2001:660:4406:5a0:501::6",
+      "kavlan-16": "2001:660:4406:7a0:501::6",
+      "kavlan-18": "2001:660:4406:8a0:501::6",
+      "kavlan-2": "2001:660:4406:581:1::6",
+      "kavlan-20": "2001:660:4406:3a0:501::6",
+      "kavlan-21": "2001:660:4406:6a0:501::6",
+      "kavlan-3": "2001:660:4406:582:1::6",
+      "kavlan-4": "2001:660:4406:590:1::6",
+      "kavlan-5": "2001:660:4406:591:1::6",
+      "kavlan-6": "2001:660:4406:592:1::6",
+      "kavlan-7": "2001:660:4406:593:1::6",
+      "kavlan-8": "2001:660:4406:594:1::6",
+      "kavlan-9": "2001:660:4406:595:1::6"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.6",
-      "ip6": "2001:660:4406:500:1:0::6",
+      "ip6": "2001:660:4406:500:1::6",
       "kavlan": true,
       "mac": "f8:f2:1e:60:57:70",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-7.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-7.json
index 0227d39750c61aaa7a65c444c1c1353e6368ec99..0342e4c376e29afcd6aad4c75ac410ed2dcbf597 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-7.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-7.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1:0::7",
-      "kavlan-11": "2001:660:4406:1a0:501:0::7",
-      "kavlan-12": "2001:660:4406:2a0:501:0::7",
-      "kavlan-13": "2001:660:4406:4a0:501:0::7",
-      "kavlan-14": "2001:660:4406:5a0:501:0::7",
-      "kavlan-16": "2001:660:4406:7a0:501:0::7",
-      "kavlan-18": "2001:660:4406:8a0:501:0::7",
-      "kavlan-2": "2001:660:4406:581:1:0::7",
-      "kavlan-20": "2001:660:4406:3a0:501:0::7",
-      "kavlan-21": "2001:660:4406:6a0:501:0::7",
-      "kavlan-3": "2001:660:4406:582:1:0::7",
-      "kavlan-4": "2001:660:4406:590:1:0::7",
-      "kavlan-5": "2001:660:4406:591:1:0::7",
-      "kavlan-6": "2001:660:4406:592:1:0::7",
-      "kavlan-7": "2001:660:4406:593:1:0::7",
-      "kavlan-8": "2001:660:4406:594:1:0::7",
-      "kavlan-9": "2001:660:4406:595:1:0::7"
+      "kavlan-1": "2001:660:4406:580:1::7",
+      "kavlan-11": "2001:660:4406:1a0:501::7",
+      "kavlan-12": "2001:660:4406:2a0:501::7",
+      "kavlan-13": "2001:660:4406:4a0:501::7",
+      "kavlan-14": "2001:660:4406:5a0:501::7",
+      "kavlan-16": "2001:660:4406:7a0:501::7",
+      "kavlan-18": "2001:660:4406:8a0:501::7",
+      "kavlan-2": "2001:660:4406:581:1::7",
+      "kavlan-20": "2001:660:4406:3a0:501::7",
+      "kavlan-21": "2001:660:4406:6a0:501::7",
+      "kavlan-3": "2001:660:4406:582:1::7",
+      "kavlan-4": "2001:660:4406:590:1::7",
+      "kavlan-5": "2001:660:4406:591:1::7",
+      "kavlan-6": "2001:660:4406:592:1::7",
+      "kavlan-7": "2001:660:4406:593:1::7",
+      "kavlan-8": "2001:660:4406:594:1::7",
+      "kavlan-9": "2001:660:4406:595:1::7"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.7",
-      "ip6": "2001:660:4406:500:1:0::7",
+      "ip6": "2001:660:4406:500:1::7",
       "kavlan": true,
       "mac": "f8:f2:1e:60:26:80",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-8.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-8.json
index 0b7381dc0ae029d38dec2fa860d82ecf7be33781..49bb1a893beda24e05ea326fcd120a66a5be0406 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-8.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-8.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1:0::8",
-      "kavlan-11": "2001:660:4406:1a0:501:0::8",
-      "kavlan-12": "2001:660:4406:2a0:501:0::8",
-      "kavlan-13": "2001:660:4406:4a0:501:0::8",
-      "kavlan-14": "2001:660:4406:5a0:501:0::8",
-      "kavlan-16": "2001:660:4406:7a0:501:0::8",
-      "kavlan-18": "2001:660:4406:8a0:501:0::8",
-      "kavlan-2": "2001:660:4406:581:1:0::8",
-      "kavlan-20": "2001:660:4406:3a0:501:0::8",
-      "kavlan-21": "2001:660:4406:6a0:501:0::8",
-      "kavlan-3": "2001:660:4406:582:1:0::8",
-      "kavlan-4": "2001:660:4406:590:1:0::8",
-      "kavlan-5": "2001:660:4406:591:1:0::8",
-      "kavlan-6": "2001:660:4406:592:1:0::8",
-      "kavlan-7": "2001:660:4406:593:1:0::8",
-      "kavlan-8": "2001:660:4406:594:1:0::8",
-      "kavlan-9": "2001:660:4406:595:1:0::8"
+      "kavlan-1": "2001:660:4406:580:1::8",
+      "kavlan-11": "2001:660:4406:1a0:501::8",
+      "kavlan-12": "2001:660:4406:2a0:501::8",
+      "kavlan-13": "2001:660:4406:4a0:501::8",
+      "kavlan-14": "2001:660:4406:5a0:501::8",
+      "kavlan-16": "2001:660:4406:7a0:501::8",
+      "kavlan-18": "2001:660:4406:8a0:501::8",
+      "kavlan-2": "2001:660:4406:581:1::8",
+      "kavlan-20": "2001:660:4406:3a0:501::8",
+      "kavlan-21": "2001:660:4406:6a0:501::8",
+      "kavlan-3": "2001:660:4406:582:1::8",
+      "kavlan-4": "2001:660:4406:590:1::8",
+      "kavlan-5": "2001:660:4406:591:1::8",
+      "kavlan-6": "2001:660:4406:592:1::8",
+      "kavlan-7": "2001:660:4406:593:1::8",
+      "kavlan-8": "2001:660:4406:594:1::8",
+      "kavlan-9": "2001:660:4406:595:1::8"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.8",
-      "ip6": "2001:660:4406:500:1:0::8",
+      "ip6": "2001:660:4406:500:1::8",
       "kavlan": true,
       "mac": "f8:f2:1e:60:35:30",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-9.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-9.json
index 48b11b073fd09834ccaa040bd5a089ec6b9f5025..b4f9e7b392716a59a33eea077f9c2a3fe47d1ce6 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-9.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-9.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1:0::9",
-      "kavlan-11": "2001:660:4406:1a0:501:0::9",
-      "kavlan-12": "2001:660:4406:2a0:501:0::9",
-      "kavlan-13": "2001:660:4406:4a0:501:0::9",
-      "kavlan-14": "2001:660:4406:5a0:501:0::9",
-      "kavlan-16": "2001:660:4406:7a0:501:0::9",
-      "kavlan-18": "2001:660:4406:8a0:501:0::9",
-      "kavlan-2": "2001:660:4406:581:1:0::9",
-      "kavlan-20": "2001:660:4406:3a0:501:0::9",
-      "kavlan-21": "2001:660:4406:6a0:501:0::9",
-      "kavlan-3": "2001:660:4406:582:1:0::9",
-      "kavlan-4": "2001:660:4406:590:1:0::9",
-      "kavlan-5": "2001:660:4406:591:1:0::9",
-      "kavlan-6": "2001:660:4406:592:1:0::9",
-      "kavlan-7": "2001:660:4406:593:1:0::9",
-      "kavlan-8": "2001:660:4406:594:1:0::9",
-      "kavlan-9": "2001:660:4406:595:1:0::9"
+      "kavlan-1": "2001:660:4406:580:1::9",
+      "kavlan-11": "2001:660:4406:1a0:501::9",
+      "kavlan-12": "2001:660:4406:2a0:501::9",
+      "kavlan-13": "2001:660:4406:4a0:501::9",
+      "kavlan-14": "2001:660:4406:5a0:501::9",
+      "kavlan-16": "2001:660:4406:7a0:501::9",
+      "kavlan-18": "2001:660:4406:8a0:501::9",
+      "kavlan-2": "2001:660:4406:581:1::9",
+      "kavlan-20": "2001:660:4406:3a0:501::9",
+      "kavlan-21": "2001:660:4406:6a0:501::9",
+      "kavlan-3": "2001:660:4406:582:1::9",
+      "kavlan-4": "2001:660:4406:590:1::9",
+      "kavlan-5": "2001:660:4406:591:1::9",
+      "kavlan-6": "2001:660:4406:592:1::9",
+      "kavlan-7": "2001:660:4406:593:1::9",
+      "kavlan-8": "2001:660:4406:594:1::9",
+      "kavlan-9": "2001:660:4406:595:1::9"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.9",
-      "ip6": "2001:660:4406:500:1:0::9",
+      "ip6": "2001:660:4406:500:1::9",
       "kavlan": true,
       "mac": "f8:f2:1e:60:21:80",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-1.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-1.json
index 49dd57f0643ec0df3e4a051107ad5338073de927..46bc5bcd31633a3078b2c9fbd6823c0bac70545d 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-1.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7:0::1",
-      "kavlan-11": "2001:660:4406:1a0:507:0::1",
-      "kavlan-12": "2001:660:4406:2a0:507:0::1",
-      "kavlan-13": "2001:660:4406:4a0:507:0::1",
-      "kavlan-14": "2001:660:4406:5a0:507:0::1",
-      "kavlan-16": "2001:660:4406:7a0:507:0::1",
-      "kavlan-18": "2001:660:4406:8a0:507:0::1",
-      "kavlan-2": "2001:660:4406:581:7:0::1",
-      "kavlan-20": "2001:660:4406:3a0:507:0::1",
-      "kavlan-21": "2001:660:4406:6a0:507:0::1",
-      "kavlan-3": "2001:660:4406:582:7:0::1",
-      "kavlan-4": "2001:660:4406:590:7:0::1",
-      "kavlan-5": "2001:660:4406:591:7:0::1",
-      "kavlan-6": "2001:660:4406:592:7:0::1",
-      "kavlan-7": "2001:660:4406:593:7:0::1",
-      "kavlan-8": "2001:660:4406:594:7:0::1",
-      "kavlan-9": "2001:660:4406:595:7:0::1"
+      "kavlan-1": "2001:660:4406:580:7::1",
+      "kavlan-11": "2001:660:4406:1a0:507::1",
+      "kavlan-12": "2001:660:4406:2a0:507::1",
+      "kavlan-13": "2001:660:4406:4a0:507::1",
+      "kavlan-14": "2001:660:4406:5a0:507::1",
+      "kavlan-16": "2001:660:4406:7a0:507::1",
+      "kavlan-18": "2001:660:4406:8a0:507::1",
+      "kavlan-2": "2001:660:4406:581:7::1",
+      "kavlan-20": "2001:660:4406:3a0:507::1",
+      "kavlan-21": "2001:660:4406:6a0:507::1",
+      "kavlan-3": "2001:660:4406:582:7::1",
+      "kavlan-4": "2001:660:4406:590:7::1",
+      "kavlan-5": "2001:660:4406:591:7::1",
+      "kavlan-6": "2001:660:4406:592:7::1",
+      "kavlan-7": "2001:660:4406:593:7::1",
+      "kavlan-8": "2001:660:4406:594:7::1",
+      "kavlan-9": "2001:660:4406:595:7::1"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.1",
-      "ip6": "2001:660:4406:500:7:0::1",
+      "ip6": "2001:660:4406:500:7::1",
       "kavlan": true,
       "mac": "24:6e:96:03:0d:08",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-10.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-10.json
index 674cebed2aaf068797574362fb4f6731708965c3..0ce23d51665008e74e88ff77f552f7de5e573d69 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-10.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7:0::a",
-      "kavlan-11": "2001:660:4406:1a0:507:0::a",
-      "kavlan-12": "2001:660:4406:2a0:507:0::a",
-      "kavlan-13": "2001:660:4406:4a0:507:0::a",
-      "kavlan-14": "2001:660:4406:5a0:507:0::a",
-      "kavlan-16": "2001:660:4406:7a0:507:0::a",
-      "kavlan-18": "2001:660:4406:8a0:507:0::a",
-      "kavlan-2": "2001:660:4406:581:7:0::a",
-      "kavlan-20": "2001:660:4406:3a0:507:0::a",
-      "kavlan-21": "2001:660:4406:6a0:507:0::a",
-      "kavlan-3": "2001:660:4406:582:7:0::a",
-      "kavlan-4": "2001:660:4406:590:7:0::a",
-      "kavlan-5": "2001:660:4406:591:7:0::a",
-      "kavlan-6": "2001:660:4406:592:7:0::a",
-      "kavlan-7": "2001:660:4406:593:7:0::a",
-      "kavlan-8": "2001:660:4406:594:7:0::a",
-      "kavlan-9": "2001:660:4406:595:7:0::a"
+      "kavlan-1": "2001:660:4406:580:7::a",
+      "kavlan-11": "2001:660:4406:1a0:507::a",
+      "kavlan-12": "2001:660:4406:2a0:507::a",
+      "kavlan-13": "2001:660:4406:4a0:507::a",
+      "kavlan-14": "2001:660:4406:5a0:507::a",
+      "kavlan-16": "2001:660:4406:7a0:507::a",
+      "kavlan-18": "2001:660:4406:8a0:507::a",
+      "kavlan-2": "2001:660:4406:581:7::a",
+      "kavlan-20": "2001:660:4406:3a0:507::a",
+      "kavlan-21": "2001:660:4406:6a0:507::a",
+      "kavlan-3": "2001:660:4406:582:7::a",
+      "kavlan-4": "2001:660:4406:590:7::a",
+      "kavlan-5": "2001:660:4406:591:7::a",
+      "kavlan-6": "2001:660:4406:592:7::a",
+      "kavlan-7": "2001:660:4406:593:7::a",
+      "kavlan-8": "2001:660:4406:594:7::a",
+      "kavlan-9": "2001:660:4406:595:7::a"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.10",
-      "ip6": "2001:660:4406:500:7:0::a",
+      "ip6": "2001:660:4406:500:7::a",
       "kavlan": true,
       "mac": "24:6e:96:03:0d:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-11.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-11.json
index f0f561824fa8a59ca7a0a11b9192306e467d7f51..0d12862489eeeaaf093f8db960729e6a22545388 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-11.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7:0::b",
-      "kavlan-11": "2001:660:4406:1a0:507:0::b",
-      "kavlan-12": "2001:660:4406:2a0:507:0::b",
-      "kavlan-13": "2001:660:4406:4a0:507:0::b",
-      "kavlan-14": "2001:660:4406:5a0:507:0::b",
-      "kavlan-16": "2001:660:4406:7a0:507:0::b",
-      "kavlan-18": "2001:660:4406:8a0:507:0::b",
-      "kavlan-2": "2001:660:4406:581:7:0::b",
-      "kavlan-20": "2001:660:4406:3a0:507:0::b",
-      "kavlan-21": "2001:660:4406:6a0:507:0::b",
-      "kavlan-3": "2001:660:4406:582:7:0::b",
-      "kavlan-4": "2001:660:4406:590:7:0::b",
-      "kavlan-5": "2001:660:4406:591:7:0::b",
-      "kavlan-6": "2001:660:4406:592:7:0::b",
-      "kavlan-7": "2001:660:4406:593:7:0::b",
-      "kavlan-8": "2001:660:4406:594:7:0::b",
-      "kavlan-9": "2001:660:4406:595:7:0::b"
+      "kavlan-1": "2001:660:4406:580:7::b",
+      "kavlan-11": "2001:660:4406:1a0:507::b",
+      "kavlan-12": "2001:660:4406:2a0:507::b",
+      "kavlan-13": "2001:660:4406:4a0:507::b",
+      "kavlan-14": "2001:660:4406:5a0:507::b",
+      "kavlan-16": "2001:660:4406:7a0:507::b",
+      "kavlan-18": "2001:660:4406:8a0:507::b",
+      "kavlan-2": "2001:660:4406:581:7::b",
+      "kavlan-20": "2001:660:4406:3a0:507::b",
+      "kavlan-21": "2001:660:4406:6a0:507::b",
+      "kavlan-3": "2001:660:4406:582:7::b",
+      "kavlan-4": "2001:660:4406:590:7::b",
+      "kavlan-5": "2001:660:4406:591:7::b",
+      "kavlan-6": "2001:660:4406:592:7::b",
+      "kavlan-7": "2001:660:4406:593:7::b",
+      "kavlan-8": "2001:660:4406:594:7::b",
+      "kavlan-9": "2001:660:4406:595:7::b"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.11",
-      "ip6": "2001:660:4406:500:7:0::b",
+      "ip6": "2001:660:4406:500:7::b",
       "kavlan": true,
       "mac": "24:6e:96:03:1f:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-12.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-12.json
index 1c81f5f14a733655c3e3cb5cd9aed94832ef3c53..f50d2a05d0b4d1a52ccb3e6a80dd413d47ca89fb 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-12.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7:0::c",
-      "kavlan-11": "2001:660:4406:1a0:507:0::c",
-      "kavlan-12": "2001:660:4406:2a0:507:0::c",
-      "kavlan-13": "2001:660:4406:4a0:507:0::c",
-      "kavlan-14": "2001:660:4406:5a0:507:0::c",
-      "kavlan-16": "2001:660:4406:7a0:507:0::c",
-      "kavlan-18": "2001:660:4406:8a0:507:0::c",
-      "kavlan-2": "2001:660:4406:581:7:0::c",
-      "kavlan-20": "2001:660:4406:3a0:507:0::c",
-      "kavlan-21": "2001:660:4406:6a0:507:0::c",
-      "kavlan-3": "2001:660:4406:582:7:0::c",
-      "kavlan-4": "2001:660:4406:590:7:0::c",
-      "kavlan-5": "2001:660:4406:591:7:0::c",
-      "kavlan-6": "2001:660:4406:592:7:0::c",
-      "kavlan-7": "2001:660:4406:593:7:0::c",
-      "kavlan-8": "2001:660:4406:594:7:0::c",
-      "kavlan-9": "2001:660:4406:595:7:0::c"
+      "kavlan-1": "2001:660:4406:580:7::c",
+      "kavlan-11": "2001:660:4406:1a0:507::c",
+      "kavlan-12": "2001:660:4406:2a0:507::c",
+      "kavlan-13": "2001:660:4406:4a0:507::c",
+      "kavlan-14": "2001:660:4406:5a0:507::c",
+      "kavlan-16": "2001:660:4406:7a0:507::c",
+      "kavlan-18": "2001:660:4406:8a0:507::c",
+      "kavlan-2": "2001:660:4406:581:7::c",
+      "kavlan-20": "2001:660:4406:3a0:507::c",
+      "kavlan-21": "2001:660:4406:6a0:507::c",
+      "kavlan-3": "2001:660:4406:582:7::c",
+      "kavlan-4": "2001:660:4406:590:7::c",
+      "kavlan-5": "2001:660:4406:591:7::c",
+      "kavlan-6": "2001:660:4406:592:7::c",
+      "kavlan-7": "2001:660:4406:593:7::c",
+      "kavlan-8": "2001:660:4406:594:7::c",
+      "kavlan-9": "2001:660:4406:595:7::c"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.12",
-      "ip6": "2001:660:4406:500:7:0::c",
+      "ip6": "2001:660:4406:500:7::c",
       "kavlan": true,
       "mac": "24:6e:96:03:09:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-13.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-13.json
index 7adf849aa9024b8414258bc866535c638cd5c9e7..11af1cd2239a992fdd9051e5a1605b0e4c7c8747 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-13.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7:0::d",
-      "kavlan-11": "2001:660:4406:1a0:507:0::d",
-      "kavlan-12": "2001:660:4406:2a0:507:0::d",
-      "kavlan-13": "2001:660:4406:4a0:507:0::d",
-      "kavlan-14": "2001:660:4406:5a0:507:0::d",
-      "kavlan-16": "2001:660:4406:7a0:507:0::d",
-      "kavlan-18": "2001:660:4406:8a0:507:0::d",
-      "kavlan-2": "2001:660:4406:581:7:0::d",
-      "kavlan-20": "2001:660:4406:3a0:507:0::d",
-      "kavlan-21": "2001:660:4406:6a0:507:0::d",
-      "kavlan-3": "2001:660:4406:582:7:0::d",
-      "kavlan-4": "2001:660:4406:590:7:0::d",
-      "kavlan-5": "2001:660:4406:591:7:0::d",
-      "kavlan-6": "2001:660:4406:592:7:0::d",
-      "kavlan-7": "2001:660:4406:593:7:0::d",
-      "kavlan-8": "2001:660:4406:594:7:0::d",
-      "kavlan-9": "2001:660:4406:595:7:0::d"
+      "kavlan-1": "2001:660:4406:580:7::d",
+      "kavlan-11": "2001:660:4406:1a0:507::d",
+      "kavlan-12": "2001:660:4406:2a0:507::d",
+      "kavlan-13": "2001:660:4406:4a0:507::d",
+      "kavlan-14": "2001:660:4406:5a0:507::d",
+      "kavlan-16": "2001:660:4406:7a0:507::d",
+      "kavlan-18": "2001:660:4406:8a0:507::d",
+      "kavlan-2": "2001:660:4406:581:7::d",
+      "kavlan-20": "2001:660:4406:3a0:507::d",
+      "kavlan-21": "2001:660:4406:6a0:507::d",
+      "kavlan-3": "2001:660:4406:582:7::d",
+      "kavlan-4": "2001:660:4406:590:7::d",
+      "kavlan-5": "2001:660:4406:591:7::d",
+      "kavlan-6": "2001:660:4406:592:7::d",
+      "kavlan-7": "2001:660:4406:593:7::d",
+      "kavlan-8": "2001:660:4406:594:7::d",
+      "kavlan-9": "2001:660:4406:595:7::d"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.13",
-      "ip6": "2001:660:4406:500:7:0::d",
+      "ip6": "2001:660:4406:500:7::d",
       "kavlan": true,
       "mac": "24:6e:96:03:24:08",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-14.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-14.json
index 761249bdfae8c2caf055b7e321eec2a363296a71..47d640da4a9ab433172b5f434a9a2bda074f4c5a 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-14.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7:0::e",
-      "kavlan-11": "2001:660:4406:1a0:507:0::e",
-      "kavlan-12": "2001:660:4406:2a0:507:0::e",
-      "kavlan-13": "2001:660:4406:4a0:507:0::e",
-      "kavlan-14": "2001:660:4406:5a0:507:0::e",
-      "kavlan-16": "2001:660:4406:7a0:507:0::e",
-      "kavlan-18": "2001:660:4406:8a0:507:0::e",
-      "kavlan-2": "2001:660:4406:581:7:0::e",
-      "kavlan-20": "2001:660:4406:3a0:507:0::e",
-      "kavlan-21": "2001:660:4406:6a0:507:0::e",
-      "kavlan-3": "2001:660:4406:582:7:0::e",
-      "kavlan-4": "2001:660:4406:590:7:0::e",
-      "kavlan-5": "2001:660:4406:591:7:0::e",
-      "kavlan-6": "2001:660:4406:592:7:0::e",
-      "kavlan-7": "2001:660:4406:593:7:0::e",
-      "kavlan-8": "2001:660:4406:594:7:0::e",
-      "kavlan-9": "2001:660:4406:595:7:0::e"
+      "kavlan-1": "2001:660:4406:580:7::e",
+      "kavlan-11": "2001:660:4406:1a0:507::e",
+      "kavlan-12": "2001:660:4406:2a0:507::e",
+      "kavlan-13": "2001:660:4406:4a0:507::e",
+      "kavlan-14": "2001:660:4406:5a0:507::e",
+      "kavlan-16": "2001:660:4406:7a0:507::e",
+      "kavlan-18": "2001:660:4406:8a0:507::e",
+      "kavlan-2": "2001:660:4406:581:7::e",
+      "kavlan-20": "2001:660:4406:3a0:507::e",
+      "kavlan-21": "2001:660:4406:6a0:507::e",
+      "kavlan-3": "2001:660:4406:582:7::e",
+      "kavlan-4": "2001:660:4406:590:7::e",
+      "kavlan-5": "2001:660:4406:591:7::e",
+      "kavlan-6": "2001:660:4406:592:7::e",
+      "kavlan-7": "2001:660:4406:593:7::e",
+      "kavlan-8": "2001:660:4406:594:7::e",
+      "kavlan-9": "2001:660:4406:595:7::e"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.14",
-      "ip6": "2001:660:4406:500:7:0::e",
+      "ip6": "2001:660:4406:500:7::e",
       "kavlan": true,
       "mac": "24:6e:96:03:12:d8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-15.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-15.json
index 36b58b5bf93d09deea4ec40498cf3ec3d3d94981..a68b68a08c26a968cfe23c2ddedd8f9c102bc333 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-15.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7:0::f",
-      "kavlan-11": "2001:660:4406:1a0:507:0::f",
-      "kavlan-12": "2001:660:4406:2a0:507:0::f",
-      "kavlan-13": "2001:660:4406:4a0:507:0::f",
-      "kavlan-14": "2001:660:4406:5a0:507:0::f",
-      "kavlan-16": "2001:660:4406:7a0:507:0::f",
-      "kavlan-18": "2001:660:4406:8a0:507:0::f",
-      "kavlan-2": "2001:660:4406:581:7:0::f",
-      "kavlan-20": "2001:660:4406:3a0:507:0::f",
-      "kavlan-21": "2001:660:4406:6a0:507:0::f",
-      "kavlan-3": "2001:660:4406:582:7:0::f",
-      "kavlan-4": "2001:660:4406:590:7:0::f",
-      "kavlan-5": "2001:660:4406:591:7:0::f",
-      "kavlan-6": "2001:660:4406:592:7:0::f",
-      "kavlan-7": "2001:660:4406:593:7:0::f",
-      "kavlan-8": "2001:660:4406:594:7:0::f",
-      "kavlan-9": "2001:660:4406:595:7:0::f"
+      "kavlan-1": "2001:660:4406:580:7::f",
+      "kavlan-11": "2001:660:4406:1a0:507::f",
+      "kavlan-12": "2001:660:4406:2a0:507::f",
+      "kavlan-13": "2001:660:4406:4a0:507::f",
+      "kavlan-14": "2001:660:4406:5a0:507::f",
+      "kavlan-16": "2001:660:4406:7a0:507::f",
+      "kavlan-18": "2001:660:4406:8a0:507::f",
+      "kavlan-2": "2001:660:4406:581:7::f",
+      "kavlan-20": "2001:660:4406:3a0:507::f",
+      "kavlan-21": "2001:660:4406:6a0:507::f",
+      "kavlan-3": "2001:660:4406:582:7::f",
+      "kavlan-4": "2001:660:4406:590:7::f",
+      "kavlan-5": "2001:660:4406:591:7::f",
+      "kavlan-6": "2001:660:4406:592:7::f",
+      "kavlan-7": "2001:660:4406:593:7::f",
+      "kavlan-8": "2001:660:4406:594:7::f",
+      "kavlan-9": "2001:660:4406:595:7::f"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.15",
-      "ip6": "2001:660:4406:500:7:0::f",
+      "ip6": "2001:660:4406:500:7::f",
       "kavlan": true,
       "mac": "24:6e:96:03:09:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-16.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-16.json
index 7120f7ff564d6cf090e2b868d114f00473e5c0fb..b5a8e2095f3134f0e862afe1a45416d3d60c239f 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-16.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7:0::10",
-      "kavlan-11": "2001:660:4406:1a0:507:0::10",
-      "kavlan-12": "2001:660:4406:2a0:507:0::10",
-      "kavlan-13": "2001:660:4406:4a0:507:0::10",
-      "kavlan-14": "2001:660:4406:5a0:507:0::10",
-      "kavlan-16": "2001:660:4406:7a0:507:0::10",
-      "kavlan-18": "2001:660:4406:8a0:507:0::10",
-      "kavlan-2": "2001:660:4406:581:7:0::10",
-      "kavlan-20": "2001:660:4406:3a0:507:0::10",
-      "kavlan-21": "2001:660:4406:6a0:507:0::10",
-      "kavlan-3": "2001:660:4406:582:7:0::10",
-      "kavlan-4": "2001:660:4406:590:7:0::10",
-      "kavlan-5": "2001:660:4406:591:7:0::10",
-      "kavlan-6": "2001:660:4406:592:7:0::10",
-      "kavlan-7": "2001:660:4406:593:7:0::10",
-      "kavlan-8": "2001:660:4406:594:7:0::10",
-      "kavlan-9": "2001:660:4406:595:7:0::10"
+      "kavlan-1": "2001:660:4406:580:7::10",
+      "kavlan-11": "2001:660:4406:1a0:507::10",
+      "kavlan-12": "2001:660:4406:2a0:507::10",
+      "kavlan-13": "2001:660:4406:4a0:507::10",
+      "kavlan-14": "2001:660:4406:5a0:507::10",
+      "kavlan-16": "2001:660:4406:7a0:507::10",
+      "kavlan-18": "2001:660:4406:8a0:507::10",
+      "kavlan-2": "2001:660:4406:581:7::10",
+      "kavlan-20": "2001:660:4406:3a0:507::10",
+      "kavlan-21": "2001:660:4406:6a0:507::10",
+      "kavlan-3": "2001:660:4406:582:7::10",
+      "kavlan-4": "2001:660:4406:590:7::10",
+      "kavlan-5": "2001:660:4406:591:7::10",
+      "kavlan-6": "2001:660:4406:592:7::10",
+      "kavlan-7": "2001:660:4406:593:7::10",
+      "kavlan-8": "2001:660:4406:594:7::10",
+      "kavlan-9": "2001:660:4406:595:7::10"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.16",
-      "ip6": "2001:660:4406:500:7:0::10",
+      "ip6": "2001:660:4406:500:7::10",
       "kavlan": true,
       "mac": "24:6e:96:03:0f:50",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-2.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-2.json
index 0a33ac0aba4db77df4e24d9eae22b508b972f737..8a8390dcb8cc479fb5f065004217f80a67d1dc05 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-2.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7:0::2",
-      "kavlan-11": "2001:660:4406:1a0:507:0::2",
-      "kavlan-12": "2001:660:4406:2a0:507:0::2",
-      "kavlan-13": "2001:660:4406:4a0:507:0::2",
-      "kavlan-14": "2001:660:4406:5a0:507:0::2",
-      "kavlan-16": "2001:660:4406:7a0:507:0::2",
-      "kavlan-18": "2001:660:4406:8a0:507:0::2",
-      "kavlan-2": "2001:660:4406:581:7:0::2",
-      "kavlan-20": "2001:660:4406:3a0:507:0::2",
-      "kavlan-21": "2001:660:4406:6a0:507:0::2",
-      "kavlan-3": "2001:660:4406:582:7:0::2",
-      "kavlan-4": "2001:660:4406:590:7:0::2",
-      "kavlan-5": "2001:660:4406:591:7:0::2",
-      "kavlan-6": "2001:660:4406:592:7:0::2",
-      "kavlan-7": "2001:660:4406:593:7:0::2",
-      "kavlan-8": "2001:660:4406:594:7:0::2",
-      "kavlan-9": "2001:660:4406:595:7:0::2"
+      "kavlan-1": "2001:660:4406:580:7::2",
+      "kavlan-11": "2001:660:4406:1a0:507::2",
+      "kavlan-12": "2001:660:4406:2a0:507::2",
+      "kavlan-13": "2001:660:4406:4a0:507::2",
+      "kavlan-14": "2001:660:4406:5a0:507::2",
+      "kavlan-16": "2001:660:4406:7a0:507::2",
+      "kavlan-18": "2001:660:4406:8a0:507::2",
+      "kavlan-2": "2001:660:4406:581:7::2",
+      "kavlan-20": "2001:660:4406:3a0:507::2",
+      "kavlan-21": "2001:660:4406:6a0:507::2",
+      "kavlan-3": "2001:660:4406:582:7::2",
+      "kavlan-4": "2001:660:4406:590:7::2",
+      "kavlan-5": "2001:660:4406:591:7::2",
+      "kavlan-6": "2001:660:4406:592:7::2",
+      "kavlan-7": "2001:660:4406:593:7::2",
+      "kavlan-8": "2001:660:4406:594:7::2",
+      "kavlan-9": "2001:660:4406:595:7::2"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.2",
-      "ip6": "2001:660:4406:500:7:0::2",
+      "ip6": "2001:660:4406:500:7::2",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:28",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-3.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-3.json
index 52fb26b54fd7af4b6763948895b8baf97418271c..f6e50b489802b70f58f67f9bb732a70361bc5951 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-3.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7:0::3",
-      "kavlan-11": "2001:660:4406:1a0:507:0::3",
-      "kavlan-12": "2001:660:4406:2a0:507:0::3",
-      "kavlan-13": "2001:660:4406:4a0:507:0::3",
-      "kavlan-14": "2001:660:4406:5a0:507:0::3",
-      "kavlan-16": "2001:660:4406:7a0:507:0::3",
-      "kavlan-18": "2001:660:4406:8a0:507:0::3",
-      "kavlan-2": "2001:660:4406:581:7:0::3",
-      "kavlan-20": "2001:660:4406:3a0:507:0::3",
-      "kavlan-21": "2001:660:4406:6a0:507:0::3",
-      "kavlan-3": "2001:660:4406:582:7:0::3",
-      "kavlan-4": "2001:660:4406:590:7:0::3",
-      "kavlan-5": "2001:660:4406:591:7:0::3",
-      "kavlan-6": "2001:660:4406:592:7:0::3",
-      "kavlan-7": "2001:660:4406:593:7:0::3",
-      "kavlan-8": "2001:660:4406:594:7:0::3",
-      "kavlan-9": "2001:660:4406:595:7:0::3"
+      "kavlan-1": "2001:660:4406:580:7::3",
+      "kavlan-11": "2001:660:4406:1a0:507::3",
+      "kavlan-12": "2001:660:4406:2a0:507::3",
+      "kavlan-13": "2001:660:4406:4a0:507::3",
+      "kavlan-14": "2001:660:4406:5a0:507::3",
+      "kavlan-16": "2001:660:4406:7a0:507::3",
+      "kavlan-18": "2001:660:4406:8a0:507::3",
+      "kavlan-2": "2001:660:4406:581:7::3",
+      "kavlan-20": "2001:660:4406:3a0:507::3",
+      "kavlan-21": "2001:660:4406:6a0:507::3",
+      "kavlan-3": "2001:660:4406:582:7::3",
+      "kavlan-4": "2001:660:4406:590:7::3",
+      "kavlan-5": "2001:660:4406:591:7::3",
+      "kavlan-6": "2001:660:4406:592:7::3",
+      "kavlan-7": "2001:660:4406:593:7::3",
+      "kavlan-8": "2001:660:4406:594:7::3",
+      "kavlan-9": "2001:660:4406:595:7::3"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.3",
-      "ip6": "2001:660:4406:500:7:0::3",
+      "ip6": "2001:660:4406:500:7::3",
       "kavlan": true,
       "mac": "24:6e:96:03:11:08",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-4.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-4.json
index 8bb9a71a087eed25454ecd1ae801aed39863310e..2e41803ca8058857ab47f165f7d1b1ceb9523dc7 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-4.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7:0::4",
-      "kavlan-11": "2001:660:4406:1a0:507:0::4",
-      "kavlan-12": "2001:660:4406:2a0:507:0::4",
-      "kavlan-13": "2001:660:4406:4a0:507:0::4",
-      "kavlan-14": "2001:660:4406:5a0:507:0::4",
-      "kavlan-16": "2001:660:4406:7a0:507:0::4",
-      "kavlan-18": "2001:660:4406:8a0:507:0::4",
-      "kavlan-2": "2001:660:4406:581:7:0::4",
-      "kavlan-20": "2001:660:4406:3a0:507:0::4",
-      "kavlan-21": "2001:660:4406:6a0:507:0::4",
-      "kavlan-3": "2001:660:4406:582:7:0::4",
-      "kavlan-4": "2001:660:4406:590:7:0::4",
-      "kavlan-5": "2001:660:4406:591:7:0::4",
-      "kavlan-6": "2001:660:4406:592:7:0::4",
-      "kavlan-7": "2001:660:4406:593:7:0::4",
-      "kavlan-8": "2001:660:4406:594:7:0::4",
-      "kavlan-9": "2001:660:4406:595:7:0::4"
+      "kavlan-1": "2001:660:4406:580:7::4",
+      "kavlan-11": "2001:660:4406:1a0:507::4",
+      "kavlan-12": "2001:660:4406:2a0:507::4",
+      "kavlan-13": "2001:660:4406:4a0:507::4",
+      "kavlan-14": "2001:660:4406:5a0:507::4",
+      "kavlan-16": "2001:660:4406:7a0:507::4",
+      "kavlan-18": "2001:660:4406:8a0:507::4",
+      "kavlan-2": "2001:660:4406:581:7::4",
+      "kavlan-20": "2001:660:4406:3a0:507::4",
+      "kavlan-21": "2001:660:4406:6a0:507::4",
+      "kavlan-3": "2001:660:4406:582:7::4",
+      "kavlan-4": "2001:660:4406:590:7::4",
+      "kavlan-5": "2001:660:4406:591:7::4",
+      "kavlan-6": "2001:660:4406:592:7::4",
+      "kavlan-7": "2001:660:4406:593:7::4",
+      "kavlan-8": "2001:660:4406:594:7::4",
+      "kavlan-9": "2001:660:4406:595:7::4"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.4",
-      "ip6": "2001:660:4406:500:7:0::4",
+      "ip6": "2001:660:4406:500:7::4",
       "kavlan": true,
       "mac": "24:6e:96:03:0e:58",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-5.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-5.json
index 51ffc9c6a609532d6c159d67ad26edcf4bba48be..1917fe762e8e6de7e8700362c9b291749f977f41 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-5.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7:0::5",
-      "kavlan-11": "2001:660:4406:1a0:507:0::5",
-      "kavlan-12": "2001:660:4406:2a0:507:0::5",
-      "kavlan-13": "2001:660:4406:4a0:507:0::5",
-      "kavlan-14": "2001:660:4406:5a0:507:0::5",
-      "kavlan-16": "2001:660:4406:7a0:507:0::5",
-      "kavlan-18": "2001:660:4406:8a0:507:0::5",
-      "kavlan-2": "2001:660:4406:581:7:0::5",
-      "kavlan-20": "2001:660:4406:3a0:507:0::5",
-      "kavlan-21": "2001:660:4406:6a0:507:0::5",
-      "kavlan-3": "2001:660:4406:582:7:0::5",
-      "kavlan-4": "2001:660:4406:590:7:0::5",
-      "kavlan-5": "2001:660:4406:591:7:0::5",
-      "kavlan-6": "2001:660:4406:592:7:0::5",
-      "kavlan-7": "2001:660:4406:593:7:0::5",
-      "kavlan-8": "2001:660:4406:594:7:0::5",
-      "kavlan-9": "2001:660:4406:595:7:0::5"
+      "kavlan-1": "2001:660:4406:580:7::5",
+      "kavlan-11": "2001:660:4406:1a0:507::5",
+      "kavlan-12": "2001:660:4406:2a0:507::5",
+      "kavlan-13": "2001:660:4406:4a0:507::5",
+      "kavlan-14": "2001:660:4406:5a0:507::5",
+      "kavlan-16": "2001:660:4406:7a0:507::5",
+      "kavlan-18": "2001:660:4406:8a0:507::5",
+      "kavlan-2": "2001:660:4406:581:7::5",
+      "kavlan-20": "2001:660:4406:3a0:507::5",
+      "kavlan-21": "2001:660:4406:6a0:507::5",
+      "kavlan-3": "2001:660:4406:582:7::5",
+      "kavlan-4": "2001:660:4406:590:7::5",
+      "kavlan-5": "2001:660:4406:591:7::5",
+      "kavlan-6": "2001:660:4406:592:7::5",
+      "kavlan-7": "2001:660:4406:593:7::5",
+      "kavlan-8": "2001:660:4406:594:7::5",
+      "kavlan-9": "2001:660:4406:595:7::5"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.5",
-      "ip6": "2001:660:4406:500:7:0::5",
+      "ip6": "2001:660:4406:500:7::5",
       "kavlan": true,
       "mac": "24:6e:96:03:1f:90",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-6.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-6.json
index 4ae5f1935d45fd914ebcc99f6516efa33b5c666d..651acbd0c460b8858156178848e5ab1baadb3cc0 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-6.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7:0::6",
-      "kavlan-11": "2001:660:4406:1a0:507:0::6",
-      "kavlan-12": "2001:660:4406:2a0:507:0::6",
-      "kavlan-13": "2001:660:4406:4a0:507:0::6",
-      "kavlan-14": "2001:660:4406:5a0:507:0::6",
-      "kavlan-16": "2001:660:4406:7a0:507:0::6",
-      "kavlan-18": "2001:660:4406:8a0:507:0::6",
-      "kavlan-2": "2001:660:4406:581:7:0::6",
-      "kavlan-20": "2001:660:4406:3a0:507:0::6",
-      "kavlan-21": "2001:660:4406:6a0:507:0::6",
-      "kavlan-3": "2001:660:4406:582:7:0::6",
-      "kavlan-4": "2001:660:4406:590:7:0::6",
-      "kavlan-5": "2001:660:4406:591:7:0::6",
-      "kavlan-6": "2001:660:4406:592:7:0::6",
-      "kavlan-7": "2001:660:4406:593:7:0::6",
-      "kavlan-8": "2001:660:4406:594:7:0::6",
-      "kavlan-9": "2001:660:4406:595:7:0::6"
+      "kavlan-1": "2001:660:4406:580:7::6",
+      "kavlan-11": "2001:660:4406:1a0:507::6",
+      "kavlan-12": "2001:660:4406:2a0:507::6",
+      "kavlan-13": "2001:660:4406:4a0:507::6",
+      "kavlan-14": "2001:660:4406:5a0:507::6",
+      "kavlan-16": "2001:660:4406:7a0:507::6",
+      "kavlan-18": "2001:660:4406:8a0:507::6",
+      "kavlan-2": "2001:660:4406:581:7::6",
+      "kavlan-20": "2001:660:4406:3a0:507::6",
+      "kavlan-21": "2001:660:4406:6a0:507::6",
+      "kavlan-3": "2001:660:4406:582:7::6",
+      "kavlan-4": "2001:660:4406:590:7::6",
+      "kavlan-5": "2001:660:4406:591:7::6",
+      "kavlan-6": "2001:660:4406:592:7::6",
+      "kavlan-7": "2001:660:4406:593:7::6",
+      "kavlan-8": "2001:660:4406:594:7::6",
+      "kavlan-9": "2001:660:4406:595:7::6"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.6",
-      "ip6": "2001:660:4406:500:7:0::6",
+      "ip6": "2001:660:4406:500:7::6",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:20",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-7.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-7.json
index 975ae1a67da756d93672669fee1109ce1f5b2561..8031f1642f05d5210118ea9b0cb13f6fc57cc6a0 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-7.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7:0::7",
-      "kavlan-11": "2001:660:4406:1a0:507:0::7",
-      "kavlan-12": "2001:660:4406:2a0:507:0::7",
-      "kavlan-13": "2001:660:4406:4a0:507:0::7",
-      "kavlan-14": "2001:660:4406:5a0:507:0::7",
-      "kavlan-16": "2001:660:4406:7a0:507:0::7",
-      "kavlan-18": "2001:660:4406:8a0:507:0::7",
-      "kavlan-2": "2001:660:4406:581:7:0::7",
-      "kavlan-20": "2001:660:4406:3a0:507:0::7",
-      "kavlan-21": "2001:660:4406:6a0:507:0::7",
-      "kavlan-3": "2001:660:4406:582:7:0::7",
-      "kavlan-4": "2001:660:4406:590:7:0::7",
-      "kavlan-5": "2001:660:4406:591:7:0::7",
-      "kavlan-6": "2001:660:4406:592:7:0::7",
-      "kavlan-7": "2001:660:4406:593:7:0::7",
-      "kavlan-8": "2001:660:4406:594:7:0::7",
-      "kavlan-9": "2001:660:4406:595:7:0::7"
+      "kavlan-1": "2001:660:4406:580:7::7",
+      "kavlan-11": "2001:660:4406:1a0:507::7",
+      "kavlan-12": "2001:660:4406:2a0:507::7",
+      "kavlan-13": "2001:660:4406:4a0:507::7",
+      "kavlan-14": "2001:660:4406:5a0:507::7",
+      "kavlan-16": "2001:660:4406:7a0:507::7",
+      "kavlan-18": "2001:660:4406:8a0:507::7",
+      "kavlan-2": "2001:660:4406:581:7::7",
+      "kavlan-20": "2001:660:4406:3a0:507::7",
+      "kavlan-21": "2001:660:4406:6a0:507::7",
+      "kavlan-3": "2001:660:4406:582:7::7",
+      "kavlan-4": "2001:660:4406:590:7::7",
+      "kavlan-5": "2001:660:4406:591:7::7",
+      "kavlan-6": "2001:660:4406:592:7::7",
+      "kavlan-7": "2001:660:4406:593:7::7",
+      "kavlan-8": "2001:660:4406:594:7::7",
+      "kavlan-9": "2001:660:4406:595:7::7"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.7",
-      "ip6": "2001:660:4406:500:7:0::7",
+      "ip6": "2001:660:4406:500:7::7",
       "kavlan": true,
       "mac": "24:6e:96:03:1e:08",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-8.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-8.json
index 4ada4521a7b616f5abb23c4a8a3a3a6e81051aac..0122d4f38444c9950f4c7c092d0543e823ddb1cf 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-8.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7:0::8",
-      "kavlan-11": "2001:660:4406:1a0:507:0::8",
-      "kavlan-12": "2001:660:4406:2a0:507:0::8",
-      "kavlan-13": "2001:660:4406:4a0:507:0::8",
-      "kavlan-14": "2001:660:4406:5a0:507:0::8",
-      "kavlan-16": "2001:660:4406:7a0:507:0::8",
-      "kavlan-18": "2001:660:4406:8a0:507:0::8",
-      "kavlan-2": "2001:660:4406:581:7:0::8",
-      "kavlan-20": "2001:660:4406:3a0:507:0::8",
-      "kavlan-21": "2001:660:4406:6a0:507:0::8",
-      "kavlan-3": "2001:660:4406:582:7:0::8",
-      "kavlan-4": "2001:660:4406:590:7:0::8",
-      "kavlan-5": "2001:660:4406:591:7:0::8",
-      "kavlan-6": "2001:660:4406:592:7:0::8",
-      "kavlan-7": "2001:660:4406:593:7:0::8",
-      "kavlan-8": "2001:660:4406:594:7:0::8",
-      "kavlan-9": "2001:660:4406:595:7:0::8"
+      "kavlan-1": "2001:660:4406:580:7::8",
+      "kavlan-11": "2001:660:4406:1a0:507::8",
+      "kavlan-12": "2001:660:4406:2a0:507::8",
+      "kavlan-13": "2001:660:4406:4a0:507::8",
+      "kavlan-14": "2001:660:4406:5a0:507::8",
+      "kavlan-16": "2001:660:4406:7a0:507::8",
+      "kavlan-18": "2001:660:4406:8a0:507::8",
+      "kavlan-2": "2001:660:4406:581:7::8",
+      "kavlan-20": "2001:660:4406:3a0:507::8",
+      "kavlan-21": "2001:660:4406:6a0:507::8",
+      "kavlan-3": "2001:660:4406:582:7::8",
+      "kavlan-4": "2001:660:4406:590:7::8",
+      "kavlan-5": "2001:660:4406:591:7::8",
+      "kavlan-6": "2001:660:4406:592:7::8",
+      "kavlan-7": "2001:660:4406:593:7::8",
+      "kavlan-8": "2001:660:4406:594:7::8",
+      "kavlan-9": "2001:660:4406:595:7::8"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.8",
-      "ip6": "2001:660:4406:500:7:0::8",
+      "ip6": "2001:660:4406:500:7::8",
       "kavlan": true,
       "mac": "24:6e:96:03:12:70",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-9.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-9.json
index 0d9c7d8148bbccf31a24ec9d94e799667bad1aa5..f3788087c144b9759d5f0b985d11c40fcb544e1e 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-9.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7:0::9",
-      "kavlan-11": "2001:660:4406:1a0:507:0::9",
-      "kavlan-12": "2001:660:4406:2a0:507:0::9",
-      "kavlan-13": "2001:660:4406:4a0:507:0::9",
-      "kavlan-14": "2001:660:4406:5a0:507:0::9",
-      "kavlan-16": "2001:660:4406:7a0:507:0::9",
-      "kavlan-18": "2001:660:4406:8a0:507:0::9",
-      "kavlan-2": "2001:660:4406:581:7:0::9",
-      "kavlan-20": "2001:660:4406:3a0:507:0::9",
-      "kavlan-21": "2001:660:4406:6a0:507:0::9",
-      "kavlan-3": "2001:660:4406:582:7:0::9",
-      "kavlan-4": "2001:660:4406:590:7:0::9",
-      "kavlan-5": "2001:660:4406:591:7:0::9",
-      "kavlan-6": "2001:660:4406:592:7:0::9",
-      "kavlan-7": "2001:660:4406:593:7:0::9",
-      "kavlan-8": "2001:660:4406:594:7:0::9",
-      "kavlan-9": "2001:660:4406:595:7:0::9"
+      "kavlan-1": "2001:660:4406:580:7::9",
+      "kavlan-11": "2001:660:4406:1a0:507::9",
+      "kavlan-12": "2001:660:4406:2a0:507::9",
+      "kavlan-13": "2001:660:4406:4a0:507::9",
+      "kavlan-14": "2001:660:4406:5a0:507::9",
+      "kavlan-16": "2001:660:4406:7a0:507::9",
+      "kavlan-18": "2001:660:4406:8a0:507::9",
+      "kavlan-2": "2001:660:4406:581:7::9",
+      "kavlan-20": "2001:660:4406:3a0:507::9",
+      "kavlan-21": "2001:660:4406:6a0:507::9",
+      "kavlan-3": "2001:660:4406:582:7::9",
+      "kavlan-4": "2001:660:4406:590:7::9",
+      "kavlan-5": "2001:660:4406:591:7::9",
+      "kavlan-6": "2001:660:4406:592:7::9",
+      "kavlan-7": "2001:660:4406:593:7::9",
+      "kavlan-8": "2001:660:4406:594:7::9",
+      "kavlan-9": "2001:660:4406:595:7::9"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.9",
-      "ip6": "2001:660:4406:500:7:0::9",
+      "ip6": "2001:660:4406:500:7::9",
       "kavlan": true,
       "mac": "24:6e:96:03:1e:d0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-1.json b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-1.json
index d8d3f469bd16415e46760ed0655408ac746590d2..fc2d60c26f10c6c6c895c4d8d4ec50bc66db0d1e 100644
--- a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-1.json
+++ b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-1.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:4:0::1",
-      "kavlan-11": "2001:660:4406:1a0:504:0::1",
-      "kavlan-12": "2001:660:4406:2a0:504:0::1",
-      "kavlan-13": "2001:660:4406:4a0:504:0::1",
-      "kavlan-14": "2001:660:4406:5a0:504:0::1",
-      "kavlan-16": "2001:660:4406:7a0:504:0::1",
-      "kavlan-18": "2001:660:4406:8a0:504:0::1",
-      "kavlan-2": "2001:660:4406:581:4:0::1",
-      "kavlan-20": "2001:660:4406:3a0:504:0::1",
-      "kavlan-21": "2001:660:4406:6a0:504:0::1",
-      "kavlan-3": "2001:660:4406:582:4:0::1",
-      "kavlan-4": "2001:660:4406:590:4:0::1",
-      "kavlan-5": "2001:660:4406:591:4:0::1",
-      "kavlan-6": "2001:660:4406:592:4:0::1",
-      "kavlan-7": "2001:660:4406:593:4:0::1",
-      "kavlan-8": "2001:660:4406:594:4:0::1",
-      "kavlan-9": "2001:660:4406:595:4:0::1"
+      "kavlan-1": "2001:660:4406:580:4::1",
+      "kavlan-11": "2001:660:4406:1a0:504::1",
+      "kavlan-12": "2001:660:4406:2a0:504::1",
+      "kavlan-13": "2001:660:4406:4a0:504::1",
+      "kavlan-14": "2001:660:4406:5a0:504::1",
+      "kavlan-16": "2001:660:4406:7a0:504::1",
+      "kavlan-18": "2001:660:4406:8a0:504::1",
+      "kavlan-2": "2001:660:4406:581:4::1",
+      "kavlan-20": "2001:660:4406:3a0:504::1",
+      "kavlan-21": "2001:660:4406:6a0:504::1",
+      "kavlan-3": "2001:660:4406:582:4::1",
+      "kavlan-4": "2001:660:4406:590:4::1",
+      "kavlan-5": "2001:660:4406:591:4::1",
+      "kavlan-6": "2001:660:4406:592:4::1",
+      "kavlan-7": "2001:660:4406:593:4::1",
+      "kavlan-8": "2001:660:4406:594:4::1",
+      "kavlan-9": "2001:660:4406:595:4::1"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "FFV15.05.12 bc 7.14.16",
       "interface": "Ethernet",
       "ip": "172.16.67.1",
-      "ip6": "2001:660:4406:500:4:0::1",
+      "ip6": "2001:660:4406:500:4::1",
       "kavlan": true,
       "mac": "b0:83:fe:e5:c0:54",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-2.json b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-2.json
index 140c75341bfd66d3536e504b1a03247748c71830..9ce94ecdc3ad76eacc7d01edf155538c473e7eba 100644
--- a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-2.json
+++ b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-2.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:4:0::2",
-      "kavlan-11": "2001:660:4406:1a0:504:0::2",
-      "kavlan-12": "2001:660:4406:2a0:504:0::2",
-      "kavlan-13": "2001:660:4406:4a0:504:0::2",
-      "kavlan-14": "2001:660:4406:5a0:504:0::2",
-      "kavlan-16": "2001:660:4406:7a0:504:0::2",
-      "kavlan-18": "2001:660:4406:8a0:504:0::2",
-      "kavlan-2": "2001:660:4406:581:4:0::2",
-      "kavlan-20": "2001:660:4406:3a0:504:0::2",
-      "kavlan-21": "2001:660:4406:6a0:504:0::2",
-      "kavlan-3": "2001:660:4406:582:4:0::2",
-      "kavlan-4": "2001:660:4406:590:4:0::2",
-      "kavlan-5": "2001:660:4406:591:4:0::2",
-      "kavlan-6": "2001:660:4406:592:4:0::2",
-      "kavlan-7": "2001:660:4406:593:4:0::2",
-      "kavlan-8": "2001:660:4406:594:4:0::2",
-      "kavlan-9": "2001:660:4406:595:4:0::2"
+      "kavlan-1": "2001:660:4406:580:4::2",
+      "kavlan-11": "2001:660:4406:1a0:504::2",
+      "kavlan-12": "2001:660:4406:2a0:504::2",
+      "kavlan-13": "2001:660:4406:4a0:504::2",
+      "kavlan-14": "2001:660:4406:5a0:504::2",
+      "kavlan-16": "2001:660:4406:7a0:504::2",
+      "kavlan-18": "2001:660:4406:8a0:504::2",
+      "kavlan-2": "2001:660:4406:581:4::2",
+      "kavlan-20": "2001:660:4406:3a0:504::2",
+      "kavlan-21": "2001:660:4406:6a0:504::2",
+      "kavlan-3": "2001:660:4406:582:4::2",
+      "kavlan-4": "2001:660:4406:590:4::2",
+      "kavlan-5": "2001:660:4406:591:4::2",
+      "kavlan-6": "2001:660:4406:592:4::2",
+      "kavlan-7": "2001:660:4406:593:4::2",
+      "kavlan-8": "2001:660:4406:594:4::2",
+      "kavlan-9": "2001:660:4406:595:4::2"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "FFV15.05.12 bc 7.14.16",
       "interface": "Ethernet",
       "ip": "172.16.67.2",
-      "ip6": "2001:660:4406:500:4:0::2",
+      "ip6": "2001:660:4406:500:4::2",
       "kavlan": true,
       "mac": "d0:94:66:63:62:32",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-3.json b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-3.json
index 90e5ad8af791b74d1199a029300a31d3ada39afa..757668e9414837b67ecf2480b8c924ce4f362b01 100644
--- a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-3.json
+++ b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-3.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:4:0::3",
-      "kavlan-11": "2001:660:4406:1a0:504:0::3",
-      "kavlan-12": "2001:660:4406:2a0:504:0::3",
-      "kavlan-13": "2001:660:4406:4a0:504:0::3",
-      "kavlan-14": "2001:660:4406:5a0:504:0::3",
-      "kavlan-16": "2001:660:4406:7a0:504:0::3",
-      "kavlan-18": "2001:660:4406:8a0:504:0::3",
-      "kavlan-2": "2001:660:4406:581:4:0::3",
-      "kavlan-20": "2001:660:4406:3a0:504:0::3",
-      "kavlan-21": "2001:660:4406:6a0:504:0::3",
-      "kavlan-3": "2001:660:4406:582:4:0::3",
-      "kavlan-4": "2001:660:4406:590:4:0::3",
-      "kavlan-5": "2001:660:4406:591:4:0::3",
-      "kavlan-6": "2001:660:4406:592:4:0::3",
-      "kavlan-7": "2001:660:4406:593:4:0::3",
-      "kavlan-8": "2001:660:4406:594:4:0::3",
-      "kavlan-9": "2001:660:4406:595:4:0::3"
+      "kavlan-1": "2001:660:4406:580:4::3",
+      "kavlan-11": "2001:660:4406:1a0:504::3",
+      "kavlan-12": "2001:660:4406:2a0:504::3",
+      "kavlan-13": "2001:660:4406:4a0:504::3",
+      "kavlan-14": "2001:660:4406:5a0:504::3",
+      "kavlan-16": "2001:660:4406:7a0:504::3",
+      "kavlan-18": "2001:660:4406:8a0:504::3",
+      "kavlan-2": "2001:660:4406:581:4::3",
+      "kavlan-20": "2001:660:4406:3a0:504::3",
+      "kavlan-21": "2001:660:4406:6a0:504::3",
+      "kavlan-3": "2001:660:4406:582:4::3",
+      "kavlan-4": "2001:660:4406:590:4::3",
+      "kavlan-5": "2001:660:4406:591:4::3",
+      "kavlan-6": "2001:660:4406:592:4::3",
+      "kavlan-7": "2001:660:4406:593:4::3",
+      "kavlan-8": "2001:660:4406:594:4::3",
+      "kavlan-9": "2001:660:4406:595:4::3"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "FFV15.05.12 bc 7.14.16",
       "interface": "Ethernet",
       "ip": "172.16.67.3",
-      "ip6": "2001:660:4406:500:4:0::3",
+      "ip6": "2001:660:4406:500:4::3",
       "kavlan": true,
       "mac": "44:a8:42:0a:33:3d",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-4.json b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-4.json
index 443c72dc79e6d25c925d607b3dd31e2dd412fff7..20cd838345b52066936814efc4e303840a563882 100644
--- a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-4.json
+++ b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-4.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:4:0::4",
-      "kavlan-11": "2001:660:4406:1a0:504:0::4",
-      "kavlan-12": "2001:660:4406:2a0:504:0::4",
-      "kavlan-13": "2001:660:4406:4a0:504:0::4",
-      "kavlan-14": "2001:660:4406:5a0:504:0::4",
-      "kavlan-16": "2001:660:4406:7a0:504:0::4",
-      "kavlan-18": "2001:660:4406:8a0:504:0::4",
-      "kavlan-2": "2001:660:4406:581:4:0::4",
-      "kavlan-20": "2001:660:4406:3a0:504:0::4",
-      "kavlan-21": "2001:660:4406:6a0:504:0::4",
-      "kavlan-3": "2001:660:4406:582:4:0::4",
-      "kavlan-4": "2001:660:4406:590:4:0::4",
-      "kavlan-5": "2001:660:4406:591:4:0::4",
-      "kavlan-6": "2001:660:4406:592:4:0::4",
-      "kavlan-7": "2001:660:4406:593:4:0::4",
-      "kavlan-8": "2001:660:4406:594:4:0::4",
-      "kavlan-9": "2001:660:4406:595:4:0::4"
+      "kavlan-1": "2001:660:4406:580:4::4",
+      "kavlan-11": "2001:660:4406:1a0:504::4",
+      "kavlan-12": "2001:660:4406:2a0:504::4",
+      "kavlan-13": "2001:660:4406:4a0:504::4",
+      "kavlan-14": "2001:660:4406:5a0:504::4",
+      "kavlan-16": "2001:660:4406:7a0:504::4",
+      "kavlan-18": "2001:660:4406:8a0:504::4",
+      "kavlan-2": "2001:660:4406:581:4::4",
+      "kavlan-20": "2001:660:4406:3a0:504::4",
+      "kavlan-21": "2001:660:4406:6a0:504::4",
+      "kavlan-3": "2001:660:4406:582:4::4",
+      "kavlan-4": "2001:660:4406:590:4::4",
+      "kavlan-5": "2001:660:4406:591:4::4",
+      "kavlan-6": "2001:660:4406:592:4::4",
+      "kavlan-7": "2001:660:4406:593:4::4",
+      "kavlan-8": "2001:660:4406:594:4::4",
+      "kavlan-9": "2001:660:4406:595:4::4"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "FFV15.05.12 bc 7.14.16",
       "interface": "Ethernet",
       "ip": "172.16.67.4",
-      "ip6": "2001:660:4406:500:4:0::4",
+      "ip6": "2001:660:4406:500:4::4",
       "kavlan": true,
       "mac": "44:a8:42:0a:8d:0d",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-5.json b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-5.json
index 827f12358ebb97b8b2c8d0667cb9ae1c9a7e98da..8402062bacd7d370f43d90a8ddb6fd85183dec2f 100644
--- a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-5.json
+++ b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-5.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:4:0::5",
-      "kavlan-11": "2001:660:4406:1a0:504:0::5",
-      "kavlan-12": "2001:660:4406:2a0:504:0::5",
-      "kavlan-13": "2001:660:4406:4a0:504:0::5",
-      "kavlan-14": "2001:660:4406:5a0:504:0::5",
-      "kavlan-16": "2001:660:4406:7a0:504:0::5",
-      "kavlan-18": "2001:660:4406:8a0:504:0::5",
-      "kavlan-2": "2001:660:4406:581:4:0::5",
-      "kavlan-20": "2001:660:4406:3a0:504:0::5",
-      "kavlan-21": "2001:660:4406:6a0:504:0::5",
-      "kavlan-3": "2001:660:4406:582:4:0::5",
-      "kavlan-4": "2001:660:4406:590:4:0::5",
-      "kavlan-5": "2001:660:4406:591:4:0::5",
-      "kavlan-6": "2001:660:4406:592:4:0::5",
-      "kavlan-7": "2001:660:4406:593:4:0::5",
-      "kavlan-8": "2001:660:4406:594:4:0::5",
-      "kavlan-9": "2001:660:4406:595:4:0::5"
+      "kavlan-1": "2001:660:4406:580:4::5",
+      "kavlan-11": "2001:660:4406:1a0:504::5",
+      "kavlan-12": "2001:660:4406:2a0:504::5",
+      "kavlan-13": "2001:660:4406:4a0:504::5",
+      "kavlan-14": "2001:660:4406:5a0:504::5",
+      "kavlan-16": "2001:660:4406:7a0:504::5",
+      "kavlan-18": "2001:660:4406:8a0:504::5",
+      "kavlan-2": "2001:660:4406:581:4::5",
+      "kavlan-20": "2001:660:4406:3a0:504::5",
+      "kavlan-21": "2001:660:4406:6a0:504::5",
+      "kavlan-3": "2001:660:4406:582:4::5",
+      "kavlan-4": "2001:660:4406:590:4::5",
+      "kavlan-5": "2001:660:4406:591:4::5",
+      "kavlan-6": "2001:660:4406:592:4::5",
+      "kavlan-7": "2001:660:4406:593:4::5",
+      "kavlan-8": "2001:660:4406:594:4::5",
+      "kavlan-9": "2001:660:4406:595:4::5"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "FFV15.05.12 bc 7.14.16",
       "interface": "Ethernet",
       "ip": "172.16.67.5",
-      "ip6": "2001:660:4406:500:4:0::5",
+      "ip6": "2001:660:4406:500:4::5",
       "kavlan": true,
       "mac": "44:a8:42:0a:4b:9b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-6.json b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-6.json
index 8156b56a3c85709920ee9ace50df610cf443ec63..0ed38614f60547d96d90015b492cbc9969742fed 100644
--- a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-6.json
+++ b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-6.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:4:0::6",
-      "kavlan-11": "2001:660:4406:1a0:504:0::6",
-      "kavlan-12": "2001:660:4406:2a0:504:0::6",
-      "kavlan-13": "2001:660:4406:4a0:504:0::6",
-      "kavlan-14": "2001:660:4406:5a0:504:0::6",
-      "kavlan-16": "2001:660:4406:7a0:504:0::6",
-      "kavlan-18": "2001:660:4406:8a0:504:0::6",
-      "kavlan-2": "2001:660:4406:581:4:0::6",
-      "kavlan-20": "2001:660:4406:3a0:504:0::6",
-      "kavlan-21": "2001:660:4406:6a0:504:0::6",
-      "kavlan-3": "2001:660:4406:582:4:0::6",
-      "kavlan-4": "2001:660:4406:590:4:0::6",
-      "kavlan-5": "2001:660:4406:591:4:0::6",
-      "kavlan-6": "2001:660:4406:592:4:0::6",
-      "kavlan-7": "2001:660:4406:593:4:0::6",
-      "kavlan-8": "2001:660:4406:594:4:0::6",
-      "kavlan-9": "2001:660:4406:595:4:0::6"
+      "kavlan-1": "2001:660:4406:580:4::6",
+      "kavlan-11": "2001:660:4406:1a0:504::6",
+      "kavlan-12": "2001:660:4406:2a0:504::6",
+      "kavlan-13": "2001:660:4406:4a0:504::6",
+      "kavlan-14": "2001:660:4406:5a0:504::6",
+      "kavlan-16": "2001:660:4406:7a0:504::6",
+      "kavlan-18": "2001:660:4406:8a0:504::6",
+      "kavlan-2": "2001:660:4406:581:4::6",
+      "kavlan-20": "2001:660:4406:3a0:504::6",
+      "kavlan-21": "2001:660:4406:6a0:504::6",
+      "kavlan-3": "2001:660:4406:582:4::6",
+      "kavlan-4": "2001:660:4406:590:4::6",
+      "kavlan-5": "2001:660:4406:591:4::6",
+      "kavlan-6": "2001:660:4406:592:4::6",
+      "kavlan-7": "2001:660:4406:593:4::6",
+      "kavlan-8": "2001:660:4406:594:4::6",
+      "kavlan-9": "2001:660:4406:595:4::6"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "FFV15.05.12 bc 7.14.16",
       "interface": "Ethernet",
       "ip": "172.16.67.6",
-      "ip6": "2001:660:4406:500:4:0::6",
+      "ip6": "2001:660:4406:500:4::6",
       "kavlan": true,
       "mac": "44:a8:42:15:cd:e6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-1.json b/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-1.json
index fe71d780684ec91fe3cc74b1235b37c25bd9b1e9..a40cf775ac24be3f4709de8f3965cbf2da8b8f30 100644
--- a/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-1.json
+++ b/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:5:0::1",
-      "kavlan-11": "2001:660:4406:1a0:505:0::1",
-      "kavlan-12": "2001:660:4406:2a0:505:0::1",
-      "kavlan-13": "2001:660:4406:4a0:505:0::1",
-      "kavlan-14": "2001:660:4406:5a0:505:0::1",
-      "kavlan-16": "2001:660:4406:7a0:505:0::1",
-      "kavlan-18": "2001:660:4406:8a0:505:0::1",
-      "kavlan-2": "2001:660:4406:581:5:0::1",
-      "kavlan-20": "2001:660:4406:3a0:505:0::1",
-      "kavlan-21": "2001:660:4406:6a0:505:0::1",
-      "kavlan-3": "2001:660:4406:582:5:0::1",
-      "kavlan-4": "2001:660:4406:590:5:0::1",
-      "kavlan-5": "2001:660:4406:591:5:0::1",
-      "kavlan-6": "2001:660:4406:592:5:0::1",
-      "kavlan-7": "2001:660:4406:593:5:0::1",
-      "kavlan-8": "2001:660:4406:594:5:0::1",
-      "kavlan-9": "2001:660:4406:595:5:0::1"
+      "kavlan-1": "2001:660:4406:580:5::1",
+      "kavlan-11": "2001:660:4406:1a0:505::1",
+      "kavlan-12": "2001:660:4406:2a0:505::1",
+      "kavlan-13": "2001:660:4406:4a0:505::1",
+      "kavlan-14": "2001:660:4406:5a0:505::1",
+      "kavlan-16": "2001:660:4406:7a0:505::1",
+      "kavlan-18": "2001:660:4406:8a0:505::1",
+      "kavlan-2": "2001:660:4406:581:5::1",
+      "kavlan-20": "2001:660:4406:3a0:505::1",
+      "kavlan-21": "2001:660:4406:6a0:505::1",
+      "kavlan-3": "2001:660:4406:582:5::1",
+      "kavlan-4": "2001:660:4406:590:5::1",
+      "kavlan-5": "2001:660:4406:591:5::1",
+      "kavlan-6": "2001:660:4406:592:5::1",
+      "kavlan-7": "2001:660:4406:593:5::1",
+      "kavlan-8": "2001:660:4406:594:5::1",
+      "kavlan-9": "2001:660:4406:595:5::1"
     }
   },
   "main_memory": {
@@ -84,7 +84,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.68.1",
-      "ip6": "2001:660:4406:500:5:0::1",
+      "ip6": "2001:660:4406:500:5::1",
       "kavlan": true,
       "mac": "b8:ca:3a:69:12:68",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-2.json b/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-2.json
index c617c51e8352a7a7926facd93b81df1182c95300..e94b6c02d8b250e0b8155f69f521c43d444623bf 100644
--- a/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-2.json
+++ b/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:5:0::2",
-      "kavlan-11": "2001:660:4406:1a0:505:0::2",
-      "kavlan-12": "2001:660:4406:2a0:505:0::2",
-      "kavlan-13": "2001:660:4406:4a0:505:0::2",
-      "kavlan-14": "2001:660:4406:5a0:505:0::2",
-      "kavlan-16": "2001:660:4406:7a0:505:0::2",
-      "kavlan-18": "2001:660:4406:8a0:505:0::2",
-      "kavlan-2": "2001:660:4406:581:5:0::2",
-      "kavlan-20": "2001:660:4406:3a0:505:0::2",
-      "kavlan-21": "2001:660:4406:6a0:505:0::2",
-      "kavlan-3": "2001:660:4406:582:5:0::2",
-      "kavlan-4": "2001:660:4406:590:5:0::2",
-      "kavlan-5": "2001:660:4406:591:5:0::2",
-      "kavlan-6": "2001:660:4406:592:5:0::2",
-      "kavlan-7": "2001:660:4406:593:5:0::2",
-      "kavlan-8": "2001:660:4406:594:5:0::2",
-      "kavlan-9": "2001:660:4406:595:5:0::2"
+      "kavlan-1": "2001:660:4406:580:5::2",
+      "kavlan-11": "2001:660:4406:1a0:505::2",
+      "kavlan-12": "2001:660:4406:2a0:505::2",
+      "kavlan-13": "2001:660:4406:4a0:505::2",
+      "kavlan-14": "2001:660:4406:5a0:505::2",
+      "kavlan-16": "2001:660:4406:7a0:505::2",
+      "kavlan-18": "2001:660:4406:8a0:505::2",
+      "kavlan-2": "2001:660:4406:581:5::2",
+      "kavlan-20": "2001:660:4406:3a0:505::2",
+      "kavlan-21": "2001:660:4406:6a0:505::2",
+      "kavlan-3": "2001:660:4406:582:5::2",
+      "kavlan-4": "2001:660:4406:590:5::2",
+      "kavlan-5": "2001:660:4406:591:5::2",
+      "kavlan-6": "2001:660:4406:592:5::2",
+      "kavlan-7": "2001:660:4406:593:5::2",
+      "kavlan-8": "2001:660:4406:594:5::2",
+      "kavlan-9": "2001:660:4406:595:5::2"
     }
   },
   "main_memory": {
@@ -84,7 +84,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.68.2",
-      "ip6": "2001:660:4406:500:5:0::2",
+      "ip6": "2001:660:4406:500:5::2",
       "kavlan": true,
       "mac": "b8:ca:3a:69:1e:88",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-3.json b/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-3.json
index 352c8ea6debda0da6a80c3040ee79681bbcc4f54..7f57996c545254bf9bb84d636603fa38355899f3 100644
--- a/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-3.json
+++ b/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:5:0::3",
-      "kavlan-11": "2001:660:4406:1a0:505:0::3",
-      "kavlan-12": "2001:660:4406:2a0:505:0::3",
-      "kavlan-13": "2001:660:4406:4a0:505:0::3",
-      "kavlan-14": "2001:660:4406:5a0:505:0::3",
-      "kavlan-16": "2001:660:4406:7a0:505:0::3",
-      "kavlan-18": "2001:660:4406:8a0:505:0::3",
-      "kavlan-2": "2001:660:4406:581:5:0::3",
-      "kavlan-20": "2001:660:4406:3a0:505:0::3",
-      "kavlan-21": "2001:660:4406:6a0:505:0::3",
-      "kavlan-3": "2001:660:4406:582:5:0::3",
-      "kavlan-4": "2001:660:4406:590:5:0::3",
-      "kavlan-5": "2001:660:4406:591:5:0::3",
-      "kavlan-6": "2001:660:4406:592:5:0::3",
-      "kavlan-7": "2001:660:4406:593:5:0::3",
-      "kavlan-8": "2001:660:4406:594:5:0::3",
-      "kavlan-9": "2001:660:4406:595:5:0::3"
+      "kavlan-1": "2001:660:4406:580:5::3",
+      "kavlan-11": "2001:660:4406:1a0:505::3",
+      "kavlan-12": "2001:660:4406:2a0:505::3",
+      "kavlan-13": "2001:660:4406:4a0:505::3",
+      "kavlan-14": "2001:660:4406:5a0:505::3",
+      "kavlan-16": "2001:660:4406:7a0:505::3",
+      "kavlan-18": "2001:660:4406:8a0:505::3",
+      "kavlan-2": "2001:660:4406:581:5::3",
+      "kavlan-20": "2001:660:4406:3a0:505::3",
+      "kavlan-21": "2001:660:4406:6a0:505::3",
+      "kavlan-3": "2001:660:4406:582:5::3",
+      "kavlan-4": "2001:660:4406:590:5::3",
+      "kavlan-5": "2001:660:4406:591:5::3",
+      "kavlan-6": "2001:660:4406:592:5::3",
+      "kavlan-7": "2001:660:4406:593:5::3",
+      "kavlan-8": "2001:660:4406:594:5::3",
+      "kavlan-9": "2001:660:4406:595:5::3"
     }
   },
   "main_memory": {
@@ -84,7 +84,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.68.3",
-      "ip6": "2001:660:4406:500:5:0::3",
+      "ip6": "2001:660:4406:500:5::3",
       "kavlan": true,
       "mac": "b8:ca:3a:69:11:d8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-4.json b/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-4.json
index d39f24a32c616a82484077845dd8c851d6dc0062..af037646432e96c5a2a62966ea6ad8a161e84901 100644
--- a/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-4.json
+++ b/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:5:0::4",
-      "kavlan-11": "2001:660:4406:1a0:505:0::4",
-      "kavlan-12": "2001:660:4406:2a0:505:0::4",
-      "kavlan-13": "2001:660:4406:4a0:505:0::4",
-      "kavlan-14": "2001:660:4406:5a0:505:0::4",
-      "kavlan-16": "2001:660:4406:7a0:505:0::4",
-      "kavlan-18": "2001:660:4406:8a0:505:0::4",
-      "kavlan-2": "2001:660:4406:581:5:0::4",
-      "kavlan-20": "2001:660:4406:3a0:505:0::4",
-      "kavlan-21": "2001:660:4406:6a0:505:0::4",
-      "kavlan-3": "2001:660:4406:582:5:0::4",
-      "kavlan-4": "2001:660:4406:590:5:0::4",
-      "kavlan-5": "2001:660:4406:591:5:0::4",
-      "kavlan-6": "2001:660:4406:592:5:0::4",
-      "kavlan-7": "2001:660:4406:593:5:0::4",
-      "kavlan-8": "2001:660:4406:594:5:0::4",
-      "kavlan-9": "2001:660:4406:595:5:0::4"
+      "kavlan-1": "2001:660:4406:580:5::4",
+      "kavlan-11": "2001:660:4406:1a0:505::4",
+      "kavlan-12": "2001:660:4406:2a0:505::4",
+      "kavlan-13": "2001:660:4406:4a0:505::4",
+      "kavlan-14": "2001:660:4406:5a0:505::4",
+      "kavlan-16": "2001:660:4406:7a0:505::4",
+      "kavlan-18": "2001:660:4406:8a0:505::4",
+      "kavlan-2": "2001:660:4406:581:5::4",
+      "kavlan-20": "2001:660:4406:3a0:505::4",
+      "kavlan-21": "2001:660:4406:6a0:505::4",
+      "kavlan-3": "2001:660:4406:582:5::4",
+      "kavlan-4": "2001:660:4406:590:5::4",
+      "kavlan-5": "2001:660:4406:591:5::4",
+      "kavlan-6": "2001:660:4406:592:5::4",
+      "kavlan-7": "2001:660:4406:593:5::4",
+      "kavlan-8": "2001:660:4406:594:5::4",
+      "kavlan-9": "2001:660:4406:595:5::4"
     }
   },
   "main_memory": {
@@ -84,7 +84,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.68.4",
-      "ip6": "2001:660:4406:500:5:0::4",
+      "ip6": "2001:660:4406:500:5::4",
       "kavlan": true,
       "mac": "b8:ca:3a:69:12:40",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-1.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-1.json
index 425c5d8be0636cbd018d82054a332975f18b83d2..9d4aac24f5e57e9ccf9aa1085c3562d2bd5de989 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-1.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f:0::1",
-      "kavlan-11": "2001:660:4406:1a0:50f:0::1",
-      "kavlan-12": "2001:660:4406:2a0:50f:0::1",
-      "kavlan-13": "2001:660:4406:4a0:50f:0::1",
-      "kavlan-14": "2001:660:4406:5a0:50f:0::1",
-      "kavlan-16": "2001:660:4406:7a0:50f:0::1",
-      "kavlan-18": "2001:660:4406:8a0:50f:0::1",
-      "kavlan-2": "2001:660:4406:581:f:0::1",
-      "kavlan-20": "2001:660:4406:3a0:50f:0::1",
-      "kavlan-21": "2001:660:4406:6a0:50f:0::1",
-      "kavlan-3": "2001:660:4406:582:f:0::1",
-      "kavlan-4": "2001:660:4406:590:f:0::1",
-      "kavlan-5": "2001:660:4406:591:f:0::1",
-      "kavlan-6": "2001:660:4406:592:f:0::1",
-      "kavlan-7": "2001:660:4406:593:f:0::1",
-      "kavlan-8": "2001:660:4406:594:f:0::1",
-      "kavlan-9": "2001:660:4406:595:f:0::1"
+      "kavlan-1": "2001:660:4406:580:f::1",
+      "kavlan-11": "2001:660:4406:1a0:50f::1",
+      "kavlan-12": "2001:660:4406:2a0:50f::1",
+      "kavlan-13": "2001:660:4406:4a0:50f::1",
+      "kavlan-14": "2001:660:4406:5a0:50f::1",
+      "kavlan-16": "2001:660:4406:7a0:50f::1",
+      "kavlan-18": "2001:660:4406:8a0:50f::1",
+      "kavlan-2": "2001:660:4406:581:f::1",
+      "kavlan-20": "2001:660:4406:3a0:50f::1",
+      "kavlan-21": "2001:660:4406:6a0:50f::1",
+      "kavlan-3": "2001:660:4406:582:f::1",
+      "kavlan-4": "2001:660:4406:590:f::1",
+      "kavlan-5": "2001:660:4406:591:f::1",
+      "kavlan-6": "2001:660:4406:592:f::1",
+      "kavlan-7": "2001:660:4406:593:f::1",
+      "kavlan-8": "2001:660:4406:594:f::1",
+      "kavlan-9": "2001:660:4406:595:f::1"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.1",
-      "ip6": "2001:660:4406:500:f:0::1",
+      "ip6": "2001:660:4406:500:f::1",
       "kavlan": true,
       "mac": "40:a6:b7:1b:64:80",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-10.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-10.json
index ad7cdeb1cd5b02146a5928da2642d847c721de39..3e1a7c921023b327d5c466376375fac9fb362c51 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-10.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f:0::a",
-      "kavlan-11": "2001:660:4406:1a0:50f:0::a",
-      "kavlan-12": "2001:660:4406:2a0:50f:0::a",
-      "kavlan-13": "2001:660:4406:4a0:50f:0::a",
-      "kavlan-14": "2001:660:4406:5a0:50f:0::a",
-      "kavlan-16": "2001:660:4406:7a0:50f:0::a",
-      "kavlan-18": "2001:660:4406:8a0:50f:0::a",
-      "kavlan-2": "2001:660:4406:581:f:0::a",
-      "kavlan-20": "2001:660:4406:3a0:50f:0::a",
-      "kavlan-21": "2001:660:4406:6a0:50f:0::a",
-      "kavlan-3": "2001:660:4406:582:f:0::a",
-      "kavlan-4": "2001:660:4406:590:f:0::a",
-      "kavlan-5": "2001:660:4406:591:f:0::a",
-      "kavlan-6": "2001:660:4406:592:f:0::a",
-      "kavlan-7": "2001:660:4406:593:f:0::a",
-      "kavlan-8": "2001:660:4406:594:f:0::a",
-      "kavlan-9": "2001:660:4406:595:f:0::a"
+      "kavlan-1": "2001:660:4406:580:f::a",
+      "kavlan-11": "2001:660:4406:1a0:50f::a",
+      "kavlan-12": "2001:660:4406:2a0:50f::a",
+      "kavlan-13": "2001:660:4406:4a0:50f::a",
+      "kavlan-14": "2001:660:4406:5a0:50f::a",
+      "kavlan-16": "2001:660:4406:7a0:50f::a",
+      "kavlan-18": "2001:660:4406:8a0:50f::a",
+      "kavlan-2": "2001:660:4406:581:f::a",
+      "kavlan-20": "2001:660:4406:3a0:50f::a",
+      "kavlan-21": "2001:660:4406:6a0:50f::a",
+      "kavlan-3": "2001:660:4406:582:f::a",
+      "kavlan-4": "2001:660:4406:590:f::a",
+      "kavlan-5": "2001:660:4406:591:f::a",
+      "kavlan-6": "2001:660:4406:592:f::a",
+      "kavlan-7": "2001:660:4406:593:f::a",
+      "kavlan-8": "2001:660:4406:594:f::a",
+      "kavlan-9": "2001:660:4406:595:f::a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.10",
-      "ip6": "2001:660:4406:500:f:0::a",
+      "ip6": "2001:660:4406:500:f::a",
       "kavlan": true,
       "mac": "40:a6:b7:1b:68:c0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-11.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-11.json
index d818f6a523fbbccfba6d8818880b88c35bf15fe7..ca5286d8571c4374e56938346199ea692f6cae0c 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-11.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f:0::b",
-      "kavlan-11": "2001:660:4406:1a0:50f:0::b",
-      "kavlan-12": "2001:660:4406:2a0:50f:0::b",
-      "kavlan-13": "2001:660:4406:4a0:50f:0::b",
-      "kavlan-14": "2001:660:4406:5a0:50f:0::b",
-      "kavlan-16": "2001:660:4406:7a0:50f:0::b",
-      "kavlan-18": "2001:660:4406:8a0:50f:0::b",
-      "kavlan-2": "2001:660:4406:581:f:0::b",
-      "kavlan-20": "2001:660:4406:3a0:50f:0::b",
-      "kavlan-21": "2001:660:4406:6a0:50f:0::b",
-      "kavlan-3": "2001:660:4406:582:f:0::b",
-      "kavlan-4": "2001:660:4406:590:f:0::b",
-      "kavlan-5": "2001:660:4406:591:f:0::b",
-      "kavlan-6": "2001:660:4406:592:f:0::b",
-      "kavlan-7": "2001:660:4406:593:f:0::b",
-      "kavlan-8": "2001:660:4406:594:f:0::b",
-      "kavlan-9": "2001:660:4406:595:f:0::b"
+      "kavlan-1": "2001:660:4406:580:f::b",
+      "kavlan-11": "2001:660:4406:1a0:50f::b",
+      "kavlan-12": "2001:660:4406:2a0:50f::b",
+      "kavlan-13": "2001:660:4406:4a0:50f::b",
+      "kavlan-14": "2001:660:4406:5a0:50f::b",
+      "kavlan-16": "2001:660:4406:7a0:50f::b",
+      "kavlan-18": "2001:660:4406:8a0:50f::b",
+      "kavlan-2": "2001:660:4406:581:f::b",
+      "kavlan-20": "2001:660:4406:3a0:50f::b",
+      "kavlan-21": "2001:660:4406:6a0:50f::b",
+      "kavlan-3": "2001:660:4406:582:f::b",
+      "kavlan-4": "2001:660:4406:590:f::b",
+      "kavlan-5": "2001:660:4406:591:f::b",
+      "kavlan-6": "2001:660:4406:592:f::b",
+      "kavlan-7": "2001:660:4406:593:f::b",
+      "kavlan-8": "2001:660:4406:594:f::b",
+      "kavlan-9": "2001:660:4406:595:f::b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.11",
-      "ip6": "2001:660:4406:500:f:0::b",
+      "ip6": "2001:660:4406:500:f::b",
       "kavlan": true,
       "mac": "40:a6:b7:1b:6b:e0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-12.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-12.json
index e906e99ec6107972a34005e3d989602ec891f4dd..3e0bf6f53b29fc0ea151fc3e822de12c88cf2103 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-12.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f:0::c",
-      "kavlan-11": "2001:660:4406:1a0:50f:0::c",
-      "kavlan-12": "2001:660:4406:2a0:50f:0::c",
-      "kavlan-13": "2001:660:4406:4a0:50f:0::c",
-      "kavlan-14": "2001:660:4406:5a0:50f:0::c",
-      "kavlan-16": "2001:660:4406:7a0:50f:0::c",
-      "kavlan-18": "2001:660:4406:8a0:50f:0::c",
-      "kavlan-2": "2001:660:4406:581:f:0::c",
-      "kavlan-20": "2001:660:4406:3a0:50f:0::c",
-      "kavlan-21": "2001:660:4406:6a0:50f:0::c",
-      "kavlan-3": "2001:660:4406:582:f:0::c",
-      "kavlan-4": "2001:660:4406:590:f:0::c",
-      "kavlan-5": "2001:660:4406:591:f:0::c",
-      "kavlan-6": "2001:660:4406:592:f:0::c",
-      "kavlan-7": "2001:660:4406:593:f:0::c",
-      "kavlan-8": "2001:660:4406:594:f:0::c",
-      "kavlan-9": "2001:660:4406:595:f:0::c"
+      "kavlan-1": "2001:660:4406:580:f::c",
+      "kavlan-11": "2001:660:4406:1a0:50f::c",
+      "kavlan-12": "2001:660:4406:2a0:50f::c",
+      "kavlan-13": "2001:660:4406:4a0:50f::c",
+      "kavlan-14": "2001:660:4406:5a0:50f::c",
+      "kavlan-16": "2001:660:4406:7a0:50f::c",
+      "kavlan-18": "2001:660:4406:8a0:50f::c",
+      "kavlan-2": "2001:660:4406:581:f::c",
+      "kavlan-20": "2001:660:4406:3a0:50f::c",
+      "kavlan-21": "2001:660:4406:6a0:50f::c",
+      "kavlan-3": "2001:660:4406:582:f::c",
+      "kavlan-4": "2001:660:4406:590:f::c",
+      "kavlan-5": "2001:660:4406:591:f::c",
+      "kavlan-6": "2001:660:4406:592:f::c",
+      "kavlan-7": "2001:660:4406:593:f::c",
+      "kavlan-8": "2001:660:4406:594:f::c",
+      "kavlan-9": "2001:660:4406:595:f::c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.12",
-      "ip6": "2001:660:4406:500:f:0::c",
+      "ip6": "2001:660:4406:500:f::c",
       "kavlan": true,
       "mac": "40:a6:b7:1b:6b:b0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-13.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-13.json
index f1a0f5fa1515fc6b2735dcd7897f39011ce7f047..fe847d30c0ea1c13ffacf98b5190a27acc121563 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-13.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f:0::d",
-      "kavlan-11": "2001:660:4406:1a0:50f:0::d",
-      "kavlan-12": "2001:660:4406:2a0:50f:0::d",
-      "kavlan-13": "2001:660:4406:4a0:50f:0::d",
-      "kavlan-14": "2001:660:4406:5a0:50f:0::d",
-      "kavlan-16": "2001:660:4406:7a0:50f:0::d",
-      "kavlan-18": "2001:660:4406:8a0:50f:0::d",
-      "kavlan-2": "2001:660:4406:581:f:0::d",
-      "kavlan-20": "2001:660:4406:3a0:50f:0::d",
-      "kavlan-21": "2001:660:4406:6a0:50f:0::d",
-      "kavlan-3": "2001:660:4406:582:f:0::d",
-      "kavlan-4": "2001:660:4406:590:f:0::d",
-      "kavlan-5": "2001:660:4406:591:f:0::d",
-      "kavlan-6": "2001:660:4406:592:f:0::d",
-      "kavlan-7": "2001:660:4406:593:f:0::d",
-      "kavlan-8": "2001:660:4406:594:f:0::d",
-      "kavlan-9": "2001:660:4406:595:f:0::d"
+      "kavlan-1": "2001:660:4406:580:f::d",
+      "kavlan-11": "2001:660:4406:1a0:50f::d",
+      "kavlan-12": "2001:660:4406:2a0:50f::d",
+      "kavlan-13": "2001:660:4406:4a0:50f::d",
+      "kavlan-14": "2001:660:4406:5a0:50f::d",
+      "kavlan-16": "2001:660:4406:7a0:50f::d",
+      "kavlan-18": "2001:660:4406:8a0:50f::d",
+      "kavlan-2": "2001:660:4406:581:f::d",
+      "kavlan-20": "2001:660:4406:3a0:50f::d",
+      "kavlan-21": "2001:660:4406:6a0:50f::d",
+      "kavlan-3": "2001:660:4406:582:f::d",
+      "kavlan-4": "2001:660:4406:590:f::d",
+      "kavlan-5": "2001:660:4406:591:f::d",
+      "kavlan-6": "2001:660:4406:592:f::d",
+      "kavlan-7": "2001:660:4406:593:f::d",
+      "kavlan-8": "2001:660:4406:594:f::d",
+      "kavlan-9": "2001:660:4406:595:f::d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.13",
-      "ip6": "2001:660:4406:500:f:0::d",
+      "ip6": "2001:660:4406:500:f::d",
       "kavlan": true,
       "mac": "40:a6:b7:1b:69:10",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-14.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-14.json
index 5b312dea1dc4692cf46e8baa3a3b3724cdf6c745..32b7c7a4edf4d1fc8762fe2a63bb552d7ec5341b 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-14.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f:0::e",
-      "kavlan-11": "2001:660:4406:1a0:50f:0::e",
-      "kavlan-12": "2001:660:4406:2a0:50f:0::e",
-      "kavlan-13": "2001:660:4406:4a0:50f:0::e",
-      "kavlan-14": "2001:660:4406:5a0:50f:0::e",
-      "kavlan-16": "2001:660:4406:7a0:50f:0::e",
-      "kavlan-18": "2001:660:4406:8a0:50f:0::e",
-      "kavlan-2": "2001:660:4406:581:f:0::e",
-      "kavlan-20": "2001:660:4406:3a0:50f:0::e",
-      "kavlan-21": "2001:660:4406:6a0:50f:0::e",
-      "kavlan-3": "2001:660:4406:582:f:0::e",
-      "kavlan-4": "2001:660:4406:590:f:0::e",
-      "kavlan-5": "2001:660:4406:591:f:0::e",
-      "kavlan-6": "2001:660:4406:592:f:0::e",
-      "kavlan-7": "2001:660:4406:593:f:0::e",
-      "kavlan-8": "2001:660:4406:594:f:0::e",
-      "kavlan-9": "2001:660:4406:595:f:0::e"
+      "kavlan-1": "2001:660:4406:580:f::e",
+      "kavlan-11": "2001:660:4406:1a0:50f::e",
+      "kavlan-12": "2001:660:4406:2a0:50f::e",
+      "kavlan-13": "2001:660:4406:4a0:50f::e",
+      "kavlan-14": "2001:660:4406:5a0:50f::e",
+      "kavlan-16": "2001:660:4406:7a0:50f::e",
+      "kavlan-18": "2001:660:4406:8a0:50f::e",
+      "kavlan-2": "2001:660:4406:581:f::e",
+      "kavlan-20": "2001:660:4406:3a0:50f::e",
+      "kavlan-21": "2001:660:4406:6a0:50f::e",
+      "kavlan-3": "2001:660:4406:582:f::e",
+      "kavlan-4": "2001:660:4406:590:f::e",
+      "kavlan-5": "2001:660:4406:591:f::e",
+      "kavlan-6": "2001:660:4406:592:f::e",
+      "kavlan-7": "2001:660:4406:593:f::e",
+      "kavlan-8": "2001:660:4406:594:f::e",
+      "kavlan-9": "2001:660:4406:595:f::e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.14",
-      "ip6": "2001:660:4406:500:f:0::e",
+      "ip6": "2001:660:4406:500:f::e",
       "kavlan": true,
       "mac": "40:a6:b7:1b:6b:10",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-15.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-15.json
index 10040bb525b1ebc2eb336ed3dd86308c3624bed6..a60d427a7c5286aa4b7c35c3ce673eebec661b0a 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-15.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f:0::f",
-      "kavlan-11": "2001:660:4406:1a0:50f:0::f",
-      "kavlan-12": "2001:660:4406:2a0:50f:0::f",
-      "kavlan-13": "2001:660:4406:4a0:50f:0::f",
-      "kavlan-14": "2001:660:4406:5a0:50f:0::f",
-      "kavlan-16": "2001:660:4406:7a0:50f:0::f",
-      "kavlan-18": "2001:660:4406:8a0:50f:0::f",
-      "kavlan-2": "2001:660:4406:581:f:0::f",
-      "kavlan-20": "2001:660:4406:3a0:50f:0::f",
-      "kavlan-21": "2001:660:4406:6a0:50f:0::f",
-      "kavlan-3": "2001:660:4406:582:f:0::f",
-      "kavlan-4": "2001:660:4406:590:f:0::f",
-      "kavlan-5": "2001:660:4406:591:f:0::f",
-      "kavlan-6": "2001:660:4406:592:f:0::f",
-      "kavlan-7": "2001:660:4406:593:f:0::f",
-      "kavlan-8": "2001:660:4406:594:f:0::f",
-      "kavlan-9": "2001:660:4406:595:f:0::f"
+      "kavlan-1": "2001:660:4406:580:f::f",
+      "kavlan-11": "2001:660:4406:1a0:50f::f",
+      "kavlan-12": "2001:660:4406:2a0:50f::f",
+      "kavlan-13": "2001:660:4406:4a0:50f::f",
+      "kavlan-14": "2001:660:4406:5a0:50f::f",
+      "kavlan-16": "2001:660:4406:7a0:50f::f",
+      "kavlan-18": "2001:660:4406:8a0:50f::f",
+      "kavlan-2": "2001:660:4406:581:f::f",
+      "kavlan-20": "2001:660:4406:3a0:50f::f",
+      "kavlan-21": "2001:660:4406:6a0:50f::f",
+      "kavlan-3": "2001:660:4406:582:f::f",
+      "kavlan-4": "2001:660:4406:590:f::f",
+      "kavlan-5": "2001:660:4406:591:f::f",
+      "kavlan-6": "2001:660:4406:592:f::f",
+      "kavlan-7": "2001:660:4406:593:f::f",
+      "kavlan-8": "2001:660:4406:594:f::f",
+      "kavlan-9": "2001:660:4406:595:f::f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.15",
-      "ip6": "2001:660:4406:500:f:0::f",
+      "ip6": "2001:660:4406:500:f::f",
       "kavlan": true,
       "mac": "40:a6:b7:1b:69:00",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-16.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-16.json
index da4ce0a91e0dc32b149b5d71873e67fec98408b8..ca60759865d9786d534da3912566250a60313e00 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-16.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f:0::10",
-      "kavlan-11": "2001:660:4406:1a0:50f:0::10",
-      "kavlan-12": "2001:660:4406:2a0:50f:0::10",
-      "kavlan-13": "2001:660:4406:4a0:50f:0::10",
-      "kavlan-14": "2001:660:4406:5a0:50f:0::10",
-      "kavlan-16": "2001:660:4406:7a0:50f:0::10",
-      "kavlan-18": "2001:660:4406:8a0:50f:0::10",
-      "kavlan-2": "2001:660:4406:581:f:0::10",
-      "kavlan-20": "2001:660:4406:3a0:50f:0::10",
-      "kavlan-21": "2001:660:4406:6a0:50f:0::10",
-      "kavlan-3": "2001:660:4406:582:f:0::10",
-      "kavlan-4": "2001:660:4406:590:f:0::10",
-      "kavlan-5": "2001:660:4406:591:f:0::10",
-      "kavlan-6": "2001:660:4406:592:f:0::10",
-      "kavlan-7": "2001:660:4406:593:f:0::10",
-      "kavlan-8": "2001:660:4406:594:f:0::10",
-      "kavlan-9": "2001:660:4406:595:f:0::10"
+      "kavlan-1": "2001:660:4406:580:f::10",
+      "kavlan-11": "2001:660:4406:1a0:50f::10",
+      "kavlan-12": "2001:660:4406:2a0:50f::10",
+      "kavlan-13": "2001:660:4406:4a0:50f::10",
+      "kavlan-14": "2001:660:4406:5a0:50f::10",
+      "kavlan-16": "2001:660:4406:7a0:50f::10",
+      "kavlan-18": "2001:660:4406:8a0:50f::10",
+      "kavlan-2": "2001:660:4406:581:f::10",
+      "kavlan-20": "2001:660:4406:3a0:50f::10",
+      "kavlan-21": "2001:660:4406:6a0:50f::10",
+      "kavlan-3": "2001:660:4406:582:f::10",
+      "kavlan-4": "2001:660:4406:590:f::10",
+      "kavlan-5": "2001:660:4406:591:f::10",
+      "kavlan-6": "2001:660:4406:592:f::10",
+      "kavlan-7": "2001:660:4406:593:f::10",
+      "kavlan-8": "2001:660:4406:594:f::10",
+      "kavlan-9": "2001:660:4406:595:f::10"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.16",
-      "ip6": "2001:660:4406:500:f:0::10",
+      "ip6": "2001:660:4406:500:f::10",
       "kavlan": true,
       "mac": "40:a6:b7:1b:68:70",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-2.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-2.json
index 7eed968a1364e752f64a38edcef2d2599e93ee3c..0c7ad4d1a05ae06fe75ede3aae71e8631f68f66e 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-2.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f:0::2",
-      "kavlan-11": "2001:660:4406:1a0:50f:0::2",
-      "kavlan-12": "2001:660:4406:2a0:50f:0::2",
-      "kavlan-13": "2001:660:4406:4a0:50f:0::2",
-      "kavlan-14": "2001:660:4406:5a0:50f:0::2",
-      "kavlan-16": "2001:660:4406:7a0:50f:0::2",
-      "kavlan-18": "2001:660:4406:8a0:50f:0::2",
-      "kavlan-2": "2001:660:4406:581:f:0::2",
-      "kavlan-20": "2001:660:4406:3a0:50f:0::2",
-      "kavlan-21": "2001:660:4406:6a0:50f:0::2",
-      "kavlan-3": "2001:660:4406:582:f:0::2",
-      "kavlan-4": "2001:660:4406:590:f:0::2",
-      "kavlan-5": "2001:660:4406:591:f:0::2",
-      "kavlan-6": "2001:660:4406:592:f:0::2",
-      "kavlan-7": "2001:660:4406:593:f:0::2",
-      "kavlan-8": "2001:660:4406:594:f:0::2",
-      "kavlan-9": "2001:660:4406:595:f:0::2"
+      "kavlan-1": "2001:660:4406:580:f::2",
+      "kavlan-11": "2001:660:4406:1a0:50f::2",
+      "kavlan-12": "2001:660:4406:2a0:50f::2",
+      "kavlan-13": "2001:660:4406:4a0:50f::2",
+      "kavlan-14": "2001:660:4406:5a0:50f::2",
+      "kavlan-16": "2001:660:4406:7a0:50f::2",
+      "kavlan-18": "2001:660:4406:8a0:50f::2",
+      "kavlan-2": "2001:660:4406:581:f::2",
+      "kavlan-20": "2001:660:4406:3a0:50f::2",
+      "kavlan-21": "2001:660:4406:6a0:50f::2",
+      "kavlan-3": "2001:660:4406:582:f::2",
+      "kavlan-4": "2001:660:4406:590:f::2",
+      "kavlan-5": "2001:660:4406:591:f::2",
+      "kavlan-6": "2001:660:4406:592:f::2",
+      "kavlan-7": "2001:660:4406:593:f::2",
+      "kavlan-8": "2001:660:4406:594:f::2",
+      "kavlan-9": "2001:660:4406:595:f::2"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.2",
-      "ip6": "2001:660:4406:500:f:0::2",
+      "ip6": "2001:660:4406:500:f::2",
       "kavlan": true,
       "mac": "40:a6:b7:1b:a9:d0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-3.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-3.json
index 1633a7382b1c046f5e95a695ee0018dbc247ab87..7b0d0017eccd881337c41c5e33d674890c1b0194 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-3.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f:0::3",
-      "kavlan-11": "2001:660:4406:1a0:50f:0::3",
-      "kavlan-12": "2001:660:4406:2a0:50f:0::3",
-      "kavlan-13": "2001:660:4406:4a0:50f:0::3",
-      "kavlan-14": "2001:660:4406:5a0:50f:0::3",
-      "kavlan-16": "2001:660:4406:7a0:50f:0::3",
-      "kavlan-18": "2001:660:4406:8a0:50f:0::3",
-      "kavlan-2": "2001:660:4406:581:f:0::3",
-      "kavlan-20": "2001:660:4406:3a0:50f:0::3",
-      "kavlan-21": "2001:660:4406:6a0:50f:0::3",
-      "kavlan-3": "2001:660:4406:582:f:0::3",
-      "kavlan-4": "2001:660:4406:590:f:0::3",
-      "kavlan-5": "2001:660:4406:591:f:0::3",
-      "kavlan-6": "2001:660:4406:592:f:0::3",
-      "kavlan-7": "2001:660:4406:593:f:0::3",
-      "kavlan-8": "2001:660:4406:594:f:0::3",
-      "kavlan-9": "2001:660:4406:595:f:0::3"
+      "kavlan-1": "2001:660:4406:580:f::3",
+      "kavlan-11": "2001:660:4406:1a0:50f::3",
+      "kavlan-12": "2001:660:4406:2a0:50f::3",
+      "kavlan-13": "2001:660:4406:4a0:50f::3",
+      "kavlan-14": "2001:660:4406:5a0:50f::3",
+      "kavlan-16": "2001:660:4406:7a0:50f::3",
+      "kavlan-18": "2001:660:4406:8a0:50f::3",
+      "kavlan-2": "2001:660:4406:581:f::3",
+      "kavlan-20": "2001:660:4406:3a0:50f::3",
+      "kavlan-21": "2001:660:4406:6a0:50f::3",
+      "kavlan-3": "2001:660:4406:582:f::3",
+      "kavlan-4": "2001:660:4406:590:f::3",
+      "kavlan-5": "2001:660:4406:591:f::3",
+      "kavlan-6": "2001:660:4406:592:f::3",
+      "kavlan-7": "2001:660:4406:593:f::3",
+      "kavlan-8": "2001:660:4406:594:f::3",
+      "kavlan-9": "2001:660:4406:595:f::3"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.3",
-      "ip6": "2001:660:4406:500:f:0::3",
+      "ip6": "2001:660:4406:500:f::3",
       "kavlan": true,
       "mac": "40:a6:b7:1b:ab:50",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-4.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-4.json
index 9dff91f99a941b10b9303de8cc01ae0173c51ba7..1844961dc6df47737cb860900ed31b7779055618 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-4.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f:0::4",
-      "kavlan-11": "2001:660:4406:1a0:50f:0::4",
-      "kavlan-12": "2001:660:4406:2a0:50f:0::4",
-      "kavlan-13": "2001:660:4406:4a0:50f:0::4",
-      "kavlan-14": "2001:660:4406:5a0:50f:0::4",
-      "kavlan-16": "2001:660:4406:7a0:50f:0::4",
-      "kavlan-18": "2001:660:4406:8a0:50f:0::4",
-      "kavlan-2": "2001:660:4406:581:f:0::4",
-      "kavlan-20": "2001:660:4406:3a0:50f:0::4",
-      "kavlan-21": "2001:660:4406:6a0:50f:0::4",
-      "kavlan-3": "2001:660:4406:582:f:0::4",
-      "kavlan-4": "2001:660:4406:590:f:0::4",
-      "kavlan-5": "2001:660:4406:591:f:0::4",
-      "kavlan-6": "2001:660:4406:592:f:0::4",
-      "kavlan-7": "2001:660:4406:593:f:0::4",
-      "kavlan-8": "2001:660:4406:594:f:0::4",
-      "kavlan-9": "2001:660:4406:595:f:0::4"
+      "kavlan-1": "2001:660:4406:580:f::4",
+      "kavlan-11": "2001:660:4406:1a0:50f::4",
+      "kavlan-12": "2001:660:4406:2a0:50f::4",
+      "kavlan-13": "2001:660:4406:4a0:50f::4",
+      "kavlan-14": "2001:660:4406:5a0:50f::4",
+      "kavlan-16": "2001:660:4406:7a0:50f::4",
+      "kavlan-18": "2001:660:4406:8a0:50f::4",
+      "kavlan-2": "2001:660:4406:581:f::4",
+      "kavlan-20": "2001:660:4406:3a0:50f::4",
+      "kavlan-21": "2001:660:4406:6a0:50f::4",
+      "kavlan-3": "2001:660:4406:582:f::4",
+      "kavlan-4": "2001:660:4406:590:f::4",
+      "kavlan-5": "2001:660:4406:591:f::4",
+      "kavlan-6": "2001:660:4406:592:f::4",
+      "kavlan-7": "2001:660:4406:593:f::4",
+      "kavlan-8": "2001:660:4406:594:f::4",
+      "kavlan-9": "2001:660:4406:595:f::4"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.4",
-      "ip6": "2001:660:4406:500:f:0::4",
+      "ip6": "2001:660:4406:500:f::4",
       "kavlan": true,
       "mac": "40:a6:b7:1b:b4:f0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-5.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-5.json
index 3f886de7347a59a57a846c009c7bc2408f74adc5..a43f22c0e7658abdd9e8e992db20514ec54dc362 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-5.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f:0::5",
-      "kavlan-11": "2001:660:4406:1a0:50f:0::5",
-      "kavlan-12": "2001:660:4406:2a0:50f:0::5",
-      "kavlan-13": "2001:660:4406:4a0:50f:0::5",
-      "kavlan-14": "2001:660:4406:5a0:50f:0::5",
-      "kavlan-16": "2001:660:4406:7a0:50f:0::5",
-      "kavlan-18": "2001:660:4406:8a0:50f:0::5",
-      "kavlan-2": "2001:660:4406:581:f:0::5",
-      "kavlan-20": "2001:660:4406:3a0:50f:0::5",
-      "kavlan-21": "2001:660:4406:6a0:50f:0::5",
-      "kavlan-3": "2001:660:4406:582:f:0::5",
-      "kavlan-4": "2001:660:4406:590:f:0::5",
-      "kavlan-5": "2001:660:4406:591:f:0::5",
-      "kavlan-6": "2001:660:4406:592:f:0::5",
-      "kavlan-7": "2001:660:4406:593:f:0::5",
-      "kavlan-8": "2001:660:4406:594:f:0::5",
-      "kavlan-9": "2001:660:4406:595:f:0::5"
+      "kavlan-1": "2001:660:4406:580:f::5",
+      "kavlan-11": "2001:660:4406:1a0:50f::5",
+      "kavlan-12": "2001:660:4406:2a0:50f::5",
+      "kavlan-13": "2001:660:4406:4a0:50f::5",
+      "kavlan-14": "2001:660:4406:5a0:50f::5",
+      "kavlan-16": "2001:660:4406:7a0:50f::5",
+      "kavlan-18": "2001:660:4406:8a0:50f::5",
+      "kavlan-2": "2001:660:4406:581:f::5",
+      "kavlan-20": "2001:660:4406:3a0:50f::5",
+      "kavlan-21": "2001:660:4406:6a0:50f::5",
+      "kavlan-3": "2001:660:4406:582:f::5",
+      "kavlan-4": "2001:660:4406:590:f::5",
+      "kavlan-5": "2001:660:4406:591:f::5",
+      "kavlan-6": "2001:660:4406:592:f::5",
+      "kavlan-7": "2001:660:4406:593:f::5",
+      "kavlan-8": "2001:660:4406:594:f::5",
+      "kavlan-9": "2001:660:4406:595:f::5"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.5",
-      "ip6": "2001:660:4406:500:f:0::5",
+      "ip6": "2001:660:4406:500:f::5",
       "kavlan": true,
       "mac": "40:a6:b7:1b:b9:c0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-6.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-6.json
index f8a19e636efdfa4b3df81444412bc2fc3c8aceab..1d9931f41ee7a17291cc03444eda6f27379d522a 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-6.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f:0::6",
-      "kavlan-11": "2001:660:4406:1a0:50f:0::6",
-      "kavlan-12": "2001:660:4406:2a0:50f:0::6",
-      "kavlan-13": "2001:660:4406:4a0:50f:0::6",
-      "kavlan-14": "2001:660:4406:5a0:50f:0::6",
-      "kavlan-16": "2001:660:4406:7a0:50f:0::6",
-      "kavlan-18": "2001:660:4406:8a0:50f:0::6",
-      "kavlan-2": "2001:660:4406:581:f:0::6",
-      "kavlan-20": "2001:660:4406:3a0:50f:0::6",
-      "kavlan-21": "2001:660:4406:6a0:50f:0::6",
-      "kavlan-3": "2001:660:4406:582:f:0::6",
-      "kavlan-4": "2001:660:4406:590:f:0::6",
-      "kavlan-5": "2001:660:4406:591:f:0::6",
-      "kavlan-6": "2001:660:4406:592:f:0::6",
-      "kavlan-7": "2001:660:4406:593:f:0::6",
-      "kavlan-8": "2001:660:4406:594:f:0::6",
-      "kavlan-9": "2001:660:4406:595:f:0::6"
+      "kavlan-1": "2001:660:4406:580:f::6",
+      "kavlan-11": "2001:660:4406:1a0:50f::6",
+      "kavlan-12": "2001:660:4406:2a0:50f::6",
+      "kavlan-13": "2001:660:4406:4a0:50f::6",
+      "kavlan-14": "2001:660:4406:5a0:50f::6",
+      "kavlan-16": "2001:660:4406:7a0:50f::6",
+      "kavlan-18": "2001:660:4406:8a0:50f::6",
+      "kavlan-2": "2001:660:4406:581:f::6",
+      "kavlan-20": "2001:660:4406:3a0:50f::6",
+      "kavlan-21": "2001:660:4406:6a0:50f::6",
+      "kavlan-3": "2001:660:4406:582:f::6",
+      "kavlan-4": "2001:660:4406:590:f::6",
+      "kavlan-5": "2001:660:4406:591:f::6",
+      "kavlan-6": "2001:660:4406:592:f::6",
+      "kavlan-7": "2001:660:4406:593:f::6",
+      "kavlan-8": "2001:660:4406:594:f::6",
+      "kavlan-9": "2001:660:4406:595:f::6"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.6",
-      "ip6": "2001:660:4406:500:f:0::6",
+      "ip6": "2001:660:4406:500:f::6",
       "kavlan": true,
       "mac": "40:a6:b7:1b:64:a0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-7.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-7.json
index 31ee9b2f18038fbf788e36d183ea780a2a52688f..1d62b344dce979b227131cc4c41d856c496c1880 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-7.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f:0::7",
-      "kavlan-11": "2001:660:4406:1a0:50f:0::7",
-      "kavlan-12": "2001:660:4406:2a0:50f:0::7",
-      "kavlan-13": "2001:660:4406:4a0:50f:0::7",
-      "kavlan-14": "2001:660:4406:5a0:50f:0::7",
-      "kavlan-16": "2001:660:4406:7a0:50f:0::7",
-      "kavlan-18": "2001:660:4406:8a0:50f:0::7",
-      "kavlan-2": "2001:660:4406:581:f:0::7",
-      "kavlan-20": "2001:660:4406:3a0:50f:0::7",
-      "kavlan-21": "2001:660:4406:6a0:50f:0::7",
-      "kavlan-3": "2001:660:4406:582:f:0::7",
-      "kavlan-4": "2001:660:4406:590:f:0::7",
-      "kavlan-5": "2001:660:4406:591:f:0::7",
-      "kavlan-6": "2001:660:4406:592:f:0::7",
-      "kavlan-7": "2001:660:4406:593:f:0::7",
-      "kavlan-8": "2001:660:4406:594:f:0::7",
-      "kavlan-9": "2001:660:4406:595:f:0::7"
+      "kavlan-1": "2001:660:4406:580:f::7",
+      "kavlan-11": "2001:660:4406:1a0:50f::7",
+      "kavlan-12": "2001:660:4406:2a0:50f::7",
+      "kavlan-13": "2001:660:4406:4a0:50f::7",
+      "kavlan-14": "2001:660:4406:5a0:50f::7",
+      "kavlan-16": "2001:660:4406:7a0:50f::7",
+      "kavlan-18": "2001:660:4406:8a0:50f::7",
+      "kavlan-2": "2001:660:4406:581:f::7",
+      "kavlan-20": "2001:660:4406:3a0:50f::7",
+      "kavlan-21": "2001:660:4406:6a0:50f::7",
+      "kavlan-3": "2001:660:4406:582:f::7",
+      "kavlan-4": "2001:660:4406:590:f::7",
+      "kavlan-5": "2001:660:4406:591:f::7",
+      "kavlan-6": "2001:660:4406:592:f::7",
+      "kavlan-7": "2001:660:4406:593:f::7",
+      "kavlan-8": "2001:660:4406:594:f::7",
+      "kavlan-9": "2001:660:4406:595:f::7"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.7",
-      "ip6": "2001:660:4406:500:f:0::7",
+      "ip6": "2001:660:4406:500:f::7",
       "kavlan": true,
       "mac": "40:a6:b7:1b:6a:b0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-8.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-8.json
index 2f01f8b3713fe43c82494cbf7cb25b318596a551..8a4ef01aac514d1676342a6c57ba7d70f7c750df 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-8.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f:0::8",
-      "kavlan-11": "2001:660:4406:1a0:50f:0::8",
-      "kavlan-12": "2001:660:4406:2a0:50f:0::8",
-      "kavlan-13": "2001:660:4406:4a0:50f:0::8",
-      "kavlan-14": "2001:660:4406:5a0:50f:0::8",
-      "kavlan-16": "2001:660:4406:7a0:50f:0::8",
-      "kavlan-18": "2001:660:4406:8a0:50f:0::8",
-      "kavlan-2": "2001:660:4406:581:f:0::8",
-      "kavlan-20": "2001:660:4406:3a0:50f:0::8",
-      "kavlan-21": "2001:660:4406:6a0:50f:0::8",
-      "kavlan-3": "2001:660:4406:582:f:0::8",
-      "kavlan-4": "2001:660:4406:590:f:0::8",
-      "kavlan-5": "2001:660:4406:591:f:0::8",
-      "kavlan-6": "2001:660:4406:592:f:0::8",
-      "kavlan-7": "2001:660:4406:593:f:0::8",
-      "kavlan-8": "2001:660:4406:594:f:0::8",
-      "kavlan-9": "2001:660:4406:595:f:0::8"
+      "kavlan-1": "2001:660:4406:580:f::8",
+      "kavlan-11": "2001:660:4406:1a0:50f::8",
+      "kavlan-12": "2001:660:4406:2a0:50f::8",
+      "kavlan-13": "2001:660:4406:4a0:50f::8",
+      "kavlan-14": "2001:660:4406:5a0:50f::8",
+      "kavlan-16": "2001:660:4406:7a0:50f::8",
+      "kavlan-18": "2001:660:4406:8a0:50f::8",
+      "kavlan-2": "2001:660:4406:581:f::8",
+      "kavlan-20": "2001:660:4406:3a0:50f::8",
+      "kavlan-21": "2001:660:4406:6a0:50f::8",
+      "kavlan-3": "2001:660:4406:582:f::8",
+      "kavlan-4": "2001:660:4406:590:f::8",
+      "kavlan-5": "2001:660:4406:591:f::8",
+      "kavlan-6": "2001:660:4406:592:f::8",
+      "kavlan-7": "2001:660:4406:593:f::8",
+      "kavlan-8": "2001:660:4406:594:f::8",
+      "kavlan-9": "2001:660:4406:595:f::8"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.8",
-      "ip6": "2001:660:4406:500:f:0::8",
+      "ip6": "2001:660:4406:500:f::8",
       "kavlan": true,
       "mac": "40:a6:b7:1b:ac:40",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-9.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-9.json
index 53276b95b1b0f8061730cade7b5fc7cbc7eb9d5a..eb63771dc849796c3f7fdeba0f4c254f2d9c28fd 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-9.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f:0::9",
-      "kavlan-11": "2001:660:4406:1a0:50f:0::9",
-      "kavlan-12": "2001:660:4406:2a0:50f:0::9",
-      "kavlan-13": "2001:660:4406:4a0:50f:0::9",
-      "kavlan-14": "2001:660:4406:5a0:50f:0::9",
-      "kavlan-16": "2001:660:4406:7a0:50f:0::9",
-      "kavlan-18": "2001:660:4406:8a0:50f:0::9",
-      "kavlan-2": "2001:660:4406:581:f:0::9",
-      "kavlan-20": "2001:660:4406:3a0:50f:0::9",
-      "kavlan-21": "2001:660:4406:6a0:50f:0::9",
-      "kavlan-3": "2001:660:4406:582:f:0::9",
-      "kavlan-4": "2001:660:4406:590:f:0::9",
-      "kavlan-5": "2001:660:4406:591:f:0::9",
-      "kavlan-6": "2001:660:4406:592:f:0::9",
-      "kavlan-7": "2001:660:4406:593:f:0::9",
-      "kavlan-8": "2001:660:4406:594:f:0::9",
-      "kavlan-9": "2001:660:4406:595:f:0::9"
+      "kavlan-1": "2001:660:4406:580:f::9",
+      "kavlan-11": "2001:660:4406:1a0:50f::9",
+      "kavlan-12": "2001:660:4406:2a0:50f::9",
+      "kavlan-13": "2001:660:4406:4a0:50f::9",
+      "kavlan-14": "2001:660:4406:5a0:50f::9",
+      "kavlan-16": "2001:660:4406:7a0:50f::9",
+      "kavlan-18": "2001:660:4406:8a0:50f::9",
+      "kavlan-2": "2001:660:4406:581:f::9",
+      "kavlan-20": "2001:660:4406:3a0:50f::9",
+      "kavlan-21": "2001:660:4406:6a0:50f::9",
+      "kavlan-3": "2001:660:4406:582:f::9",
+      "kavlan-4": "2001:660:4406:590:f::9",
+      "kavlan-5": "2001:660:4406:591:f::9",
+      "kavlan-6": "2001:660:4406:592:f::9",
+      "kavlan-7": "2001:660:4406:593:f::9",
+      "kavlan-8": "2001:660:4406:594:f::9",
+      "kavlan-9": "2001:660:4406:595:f::9"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.9",
-      "ip6": "2001:660:4406:500:f:0::9",
+      "ip6": "2001:660:4406:500:f::9",
       "kavlan": true,
       "mac": "40:a6:b7:1b:6d:80",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-1.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-1.json
index d01dceb335b1fac24bb4a4dcd626319e698bc259..1d35497ef9d0d14fed7c6ea6e133607d434f1f8a 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-1.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::1",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::1",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::1",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::1",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::1",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::1",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::1",
-      "kavlan-2": "2001:660:4406:581:c:0::1",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::1",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::1",
-      "kavlan-3": "2001:660:4406:582:c:0::1",
-      "kavlan-4": "2001:660:4406:590:c:0::1",
-      "kavlan-5": "2001:660:4406:591:c:0::1",
-      "kavlan-6": "2001:660:4406:592:c:0::1",
-      "kavlan-7": "2001:660:4406:593:c:0::1",
-      "kavlan-8": "2001:660:4406:594:c:0::1",
-      "kavlan-9": "2001:660:4406:595:c:0::1"
+      "kavlan-1": "2001:660:4406:580:c::1",
+      "kavlan-11": "2001:660:4406:1a0:50c::1",
+      "kavlan-12": "2001:660:4406:2a0:50c::1",
+      "kavlan-13": "2001:660:4406:4a0:50c::1",
+      "kavlan-14": "2001:660:4406:5a0:50c::1",
+      "kavlan-16": "2001:660:4406:7a0:50c::1",
+      "kavlan-18": "2001:660:4406:8a0:50c::1",
+      "kavlan-2": "2001:660:4406:581:c::1",
+      "kavlan-20": "2001:660:4406:3a0:50c::1",
+      "kavlan-21": "2001:660:4406:6a0:50c::1",
+      "kavlan-3": "2001:660:4406:582:c::1",
+      "kavlan-4": "2001:660:4406:590:c::1",
+      "kavlan-5": "2001:660:4406:591:c::1",
+      "kavlan-6": "2001:660:4406:592:c::1",
+      "kavlan-7": "2001:660:4406:593:c::1",
+      "kavlan-8": "2001:660:4406:594:c::1",
+      "kavlan-9": "2001:660:4406:595:c::1"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.1",
-      "ip6": "2001:660:4406:500:c:0::1",
+      "ip6": "2001:660:4406:500:c::1",
       "kavlan": true,
       "mac": "84:8f:69:fd:0b:ea",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-10.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-10.json
index 2ee8bf6563583662be06d899b9acca08d627eb27..d48107555f0e9643f9e340660a35aa26595a97d5 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-10.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::a",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::a",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::a",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::a",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::a",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::a",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::a",
-      "kavlan-2": "2001:660:4406:581:c:0::a",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::a",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::a",
-      "kavlan-3": "2001:660:4406:582:c:0::a",
-      "kavlan-4": "2001:660:4406:590:c:0::a",
-      "kavlan-5": "2001:660:4406:591:c:0::a",
-      "kavlan-6": "2001:660:4406:592:c:0::a",
-      "kavlan-7": "2001:660:4406:593:c:0::a",
-      "kavlan-8": "2001:660:4406:594:c:0::a",
-      "kavlan-9": "2001:660:4406:595:c:0::a"
+      "kavlan-1": "2001:660:4406:580:c::a",
+      "kavlan-11": "2001:660:4406:1a0:50c::a",
+      "kavlan-12": "2001:660:4406:2a0:50c::a",
+      "kavlan-13": "2001:660:4406:4a0:50c::a",
+      "kavlan-14": "2001:660:4406:5a0:50c::a",
+      "kavlan-16": "2001:660:4406:7a0:50c::a",
+      "kavlan-18": "2001:660:4406:8a0:50c::a",
+      "kavlan-2": "2001:660:4406:581:c::a",
+      "kavlan-20": "2001:660:4406:3a0:50c::a",
+      "kavlan-21": "2001:660:4406:6a0:50c::a",
+      "kavlan-3": "2001:660:4406:582:c::a",
+      "kavlan-4": "2001:660:4406:590:c::a",
+      "kavlan-5": "2001:660:4406:591:c::a",
+      "kavlan-6": "2001:660:4406:592:c::a",
+      "kavlan-7": "2001:660:4406:593:c::a",
+      "kavlan-8": "2001:660:4406:594:c::a",
+      "kavlan-9": "2001:660:4406:595:c::a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.10",
-      "ip6": "2001:660:4406:500:c:0::a",
+      "ip6": "2001:660:4406:500:c::a",
       "kavlan": true,
       "mac": "84:8f:69:fd:0b:c9",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-11.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-11.json
index 033d2ec82f365ba8d6e68d1189d1f8d76703ecac..184e4dfc1f6f9afdf54895dd2ee02f8f9971b864 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-11.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::b",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::b",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::b",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::b",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::b",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::b",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::b",
-      "kavlan-2": "2001:660:4406:581:c:0::b",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::b",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::b",
-      "kavlan-3": "2001:660:4406:582:c:0::b",
-      "kavlan-4": "2001:660:4406:590:c:0::b",
-      "kavlan-5": "2001:660:4406:591:c:0::b",
-      "kavlan-6": "2001:660:4406:592:c:0::b",
-      "kavlan-7": "2001:660:4406:593:c:0::b",
-      "kavlan-8": "2001:660:4406:594:c:0::b",
-      "kavlan-9": "2001:660:4406:595:c:0::b"
+      "kavlan-1": "2001:660:4406:580:c::b",
+      "kavlan-11": "2001:660:4406:1a0:50c::b",
+      "kavlan-12": "2001:660:4406:2a0:50c::b",
+      "kavlan-13": "2001:660:4406:4a0:50c::b",
+      "kavlan-14": "2001:660:4406:5a0:50c::b",
+      "kavlan-16": "2001:660:4406:7a0:50c::b",
+      "kavlan-18": "2001:660:4406:8a0:50c::b",
+      "kavlan-2": "2001:660:4406:581:c::b",
+      "kavlan-20": "2001:660:4406:3a0:50c::b",
+      "kavlan-21": "2001:660:4406:6a0:50c::b",
+      "kavlan-3": "2001:660:4406:582:c::b",
+      "kavlan-4": "2001:660:4406:590:c::b",
+      "kavlan-5": "2001:660:4406:591:c::b",
+      "kavlan-6": "2001:660:4406:592:c::b",
+      "kavlan-7": "2001:660:4406:593:c::b",
+      "kavlan-8": "2001:660:4406:594:c::b",
+      "kavlan-9": "2001:660:4406:595:c::b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.11",
-      "ip6": "2001:660:4406:500:c:0::b",
+      "ip6": "2001:660:4406:500:c::b",
       "kavlan": true,
       "mac": "84:8f:69:fd:43:37",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-12.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-12.json
index e1bee5ab62f77aa747d2d3b36eae11d9d1991e13..c9e33a08c85ea2c06470e34dea90cbf50298346f 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-12.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::c",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::c",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::c",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::c",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::c",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::c",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::c",
-      "kavlan-2": "2001:660:4406:581:c:0::c",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::c",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::c",
-      "kavlan-3": "2001:660:4406:582:c:0::c",
-      "kavlan-4": "2001:660:4406:590:c:0::c",
-      "kavlan-5": "2001:660:4406:591:c:0::c",
-      "kavlan-6": "2001:660:4406:592:c:0::c",
-      "kavlan-7": "2001:660:4406:593:c:0::c",
-      "kavlan-8": "2001:660:4406:594:c:0::c",
-      "kavlan-9": "2001:660:4406:595:c:0::c"
+      "kavlan-1": "2001:660:4406:580:c::c",
+      "kavlan-11": "2001:660:4406:1a0:50c::c",
+      "kavlan-12": "2001:660:4406:2a0:50c::c",
+      "kavlan-13": "2001:660:4406:4a0:50c::c",
+      "kavlan-14": "2001:660:4406:5a0:50c::c",
+      "kavlan-16": "2001:660:4406:7a0:50c::c",
+      "kavlan-18": "2001:660:4406:8a0:50c::c",
+      "kavlan-2": "2001:660:4406:581:c::c",
+      "kavlan-20": "2001:660:4406:3a0:50c::c",
+      "kavlan-21": "2001:660:4406:6a0:50c::c",
+      "kavlan-3": "2001:660:4406:582:c::c",
+      "kavlan-4": "2001:660:4406:590:c::c",
+      "kavlan-5": "2001:660:4406:591:c::c",
+      "kavlan-6": "2001:660:4406:592:c::c",
+      "kavlan-7": "2001:660:4406:593:c::c",
+      "kavlan-8": "2001:660:4406:594:c::c",
+      "kavlan-9": "2001:660:4406:595:c::c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.12",
-      "ip6": "2001:660:4406:500:c:0::c",
+      "ip6": "2001:660:4406:500:c::c",
       "kavlan": true,
       "mac": "84:8f:69:fd:2b:bf",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-13.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-13.json
index 8987eb4e32a159ed05925b8a0369d79f6f8c312d..256bd1e8dc263d147e783875ae4779a5a70bb334 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-13.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::d",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::d",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::d",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::d",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::d",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::d",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::d",
-      "kavlan-2": "2001:660:4406:581:c:0::d",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::d",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::d",
-      "kavlan-3": "2001:660:4406:582:c:0::d",
-      "kavlan-4": "2001:660:4406:590:c:0::d",
-      "kavlan-5": "2001:660:4406:591:c:0::d",
-      "kavlan-6": "2001:660:4406:592:c:0::d",
-      "kavlan-7": "2001:660:4406:593:c:0::d",
-      "kavlan-8": "2001:660:4406:594:c:0::d",
-      "kavlan-9": "2001:660:4406:595:c:0::d"
+      "kavlan-1": "2001:660:4406:580:c::d",
+      "kavlan-11": "2001:660:4406:1a0:50c::d",
+      "kavlan-12": "2001:660:4406:2a0:50c::d",
+      "kavlan-13": "2001:660:4406:4a0:50c::d",
+      "kavlan-14": "2001:660:4406:5a0:50c::d",
+      "kavlan-16": "2001:660:4406:7a0:50c::d",
+      "kavlan-18": "2001:660:4406:8a0:50c::d",
+      "kavlan-2": "2001:660:4406:581:c::d",
+      "kavlan-20": "2001:660:4406:3a0:50c::d",
+      "kavlan-21": "2001:660:4406:6a0:50c::d",
+      "kavlan-3": "2001:660:4406:582:c::d",
+      "kavlan-4": "2001:660:4406:590:c::d",
+      "kavlan-5": "2001:660:4406:591:c::d",
+      "kavlan-6": "2001:660:4406:592:c::d",
+      "kavlan-7": "2001:660:4406:593:c::d",
+      "kavlan-8": "2001:660:4406:594:c::d",
+      "kavlan-9": "2001:660:4406:595:c::d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.13",
-      "ip6": "2001:660:4406:500:c:0::d",
+      "ip6": "2001:660:4406:500:c::d",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:a6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-14.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-14.json
index d2946a2af76a9a24f92ed1bb9edede38726548b0..b54de28532b333665c0ce1058503e5c025223f19 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-14.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::e",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::e",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::e",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::e",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::e",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::e",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::e",
-      "kavlan-2": "2001:660:4406:581:c:0::e",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::e",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::e",
-      "kavlan-3": "2001:660:4406:582:c:0::e",
-      "kavlan-4": "2001:660:4406:590:c:0::e",
-      "kavlan-5": "2001:660:4406:591:c:0::e",
-      "kavlan-6": "2001:660:4406:592:c:0::e",
-      "kavlan-7": "2001:660:4406:593:c:0::e",
-      "kavlan-8": "2001:660:4406:594:c:0::e",
-      "kavlan-9": "2001:660:4406:595:c:0::e"
+      "kavlan-1": "2001:660:4406:580:c::e",
+      "kavlan-11": "2001:660:4406:1a0:50c::e",
+      "kavlan-12": "2001:660:4406:2a0:50c::e",
+      "kavlan-13": "2001:660:4406:4a0:50c::e",
+      "kavlan-14": "2001:660:4406:5a0:50c::e",
+      "kavlan-16": "2001:660:4406:7a0:50c::e",
+      "kavlan-18": "2001:660:4406:8a0:50c::e",
+      "kavlan-2": "2001:660:4406:581:c::e",
+      "kavlan-20": "2001:660:4406:3a0:50c::e",
+      "kavlan-21": "2001:660:4406:6a0:50c::e",
+      "kavlan-3": "2001:660:4406:582:c::e",
+      "kavlan-4": "2001:660:4406:590:c::e",
+      "kavlan-5": "2001:660:4406:591:c::e",
+      "kavlan-6": "2001:660:4406:592:c::e",
+      "kavlan-7": "2001:660:4406:593:c::e",
+      "kavlan-8": "2001:660:4406:594:c::e",
+      "kavlan-9": "2001:660:4406:595:c::e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.14",
-      "ip6": "2001:660:4406:500:c:0::e",
+      "ip6": "2001:660:4406:500:c::e",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:ca",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-15.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-15.json
index 388f372e422ae8c52843479605f4758642a56c33..f2ac62eb5a343c1e23ca6d54b37916dbaafed5ab 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-15.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::f",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::f",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::f",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::f",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::f",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::f",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::f",
-      "kavlan-2": "2001:660:4406:581:c:0::f",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::f",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::f",
-      "kavlan-3": "2001:660:4406:582:c:0::f",
-      "kavlan-4": "2001:660:4406:590:c:0::f",
-      "kavlan-5": "2001:660:4406:591:c:0::f",
-      "kavlan-6": "2001:660:4406:592:c:0::f",
-      "kavlan-7": "2001:660:4406:593:c:0::f",
-      "kavlan-8": "2001:660:4406:594:c:0::f",
-      "kavlan-9": "2001:660:4406:595:c:0::f"
+      "kavlan-1": "2001:660:4406:580:c::f",
+      "kavlan-11": "2001:660:4406:1a0:50c::f",
+      "kavlan-12": "2001:660:4406:2a0:50c::f",
+      "kavlan-13": "2001:660:4406:4a0:50c::f",
+      "kavlan-14": "2001:660:4406:5a0:50c::f",
+      "kavlan-16": "2001:660:4406:7a0:50c::f",
+      "kavlan-18": "2001:660:4406:8a0:50c::f",
+      "kavlan-2": "2001:660:4406:581:c::f",
+      "kavlan-20": "2001:660:4406:3a0:50c::f",
+      "kavlan-21": "2001:660:4406:6a0:50c::f",
+      "kavlan-3": "2001:660:4406:582:c::f",
+      "kavlan-4": "2001:660:4406:590:c::f",
+      "kavlan-5": "2001:660:4406:591:c::f",
+      "kavlan-6": "2001:660:4406:592:c::f",
+      "kavlan-7": "2001:660:4406:593:c::f",
+      "kavlan-8": "2001:660:4406:594:c::f",
+      "kavlan-9": "2001:660:4406:595:c::f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.15",
-      "ip6": "2001:660:4406:500:c:0::f",
+      "ip6": "2001:660:4406:500:c::f",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:af",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-16.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-16.json
index b63733db7a631e265acb02e3392d0a1a6ded9f66..92814d5c30bdd35eba7e3d21c16c97d09f0d2262 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-16.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::10",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::10",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::10",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::10",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::10",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::10",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::10",
-      "kavlan-2": "2001:660:4406:581:c:0::10",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::10",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::10",
-      "kavlan-3": "2001:660:4406:582:c:0::10",
-      "kavlan-4": "2001:660:4406:590:c:0::10",
-      "kavlan-5": "2001:660:4406:591:c:0::10",
-      "kavlan-6": "2001:660:4406:592:c:0::10",
-      "kavlan-7": "2001:660:4406:593:c:0::10",
-      "kavlan-8": "2001:660:4406:594:c:0::10",
-      "kavlan-9": "2001:660:4406:595:c:0::10"
+      "kavlan-1": "2001:660:4406:580:c::10",
+      "kavlan-11": "2001:660:4406:1a0:50c::10",
+      "kavlan-12": "2001:660:4406:2a0:50c::10",
+      "kavlan-13": "2001:660:4406:4a0:50c::10",
+      "kavlan-14": "2001:660:4406:5a0:50c::10",
+      "kavlan-16": "2001:660:4406:7a0:50c::10",
+      "kavlan-18": "2001:660:4406:8a0:50c::10",
+      "kavlan-2": "2001:660:4406:581:c::10",
+      "kavlan-20": "2001:660:4406:3a0:50c::10",
+      "kavlan-21": "2001:660:4406:6a0:50c::10",
+      "kavlan-3": "2001:660:4406:582:c::10",
+      "kavlan-4": "2001:660:4406:590:c::10",
+      "kavlan-5": "2001:660:4406:591:c::10",
+      "kavlan-6": "2001:660:4406:592:c::10",
+      "kavlan-7": "2001:660:4406:593:c::10",
+      "kavlan-8": "2001:660:4406:594:c::10",
+      "kavlan-9": "2001:660:4406:595:c::10"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.16",
-      "ip6": "2001:660:4406:500:c:0::10",
+      "ip6": "2001:660:4406:500:c::10",
       "kavlan": true,
       "mac": "78:45:c4:fc:3b:2d",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-17.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-17.json
index 19156cff8b371a3279bc53b39e4bb0307aab1280..d363011ca8babba86f5307ed21b4168039794795 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-17.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-17.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::11",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::11",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::11",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::11",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::11",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::11",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::11",
-      "kavlan-2": "2001:660:4406:581:c:0::11",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::11",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::11",
-      "kavlan-3": "2001:660:4406:582:c:0::11",
-      "kavlan-4": "2001:660:4406:590:c:0::11",
-      "kavlan-5": "2001:660:4406:591:c:0::11",
-      "kavlan-6": "2001:660:4406:592:c:0::11",
-      "kavlan-7": "2001:660:4406:593:c:0::11",
-      "kavlan-8": "2001:660:4406:594:c:0::11",
-      "kavlan-9": "2001:660:4406:595:c:0::11"
+      "kavlan-1": "2001:660:4406:580:c::11",
+      "kavlan-11": "2001:660:4406:1a0:50c::11",
+      "kavlan-12": "2001:660:4406:2a0:50c::11",
+      "kavlan-13": "2001:660:4406:4a0:50c::11",
+      "kavlan-14": "2001:660:4406:5a0:50c::11",
+      "kavlan-16": "2001:660:4406:7a0:50c::11",
+      "kavlan-18": "2001:660:4406:8a0:50c::11",
+      "kavlan-2": "2001:660:4406:581:c::11",
+      "kavlan-20": "2001:660:4406:3a0:50c::11",
+      "kavlan-21": "2001:660:4406:6a0:50c::11",
+      "kavlan-3": "2001:660:4406:582:c::11",
+      "kavlan-4": "2001:660:4406:590:c::11",
+      "kavlan-5": "2001:660:4406:591:c::11",
+      "kavlan-6": "2001:660:4406:592:c::11",
+      "kavlan-7": "2001:660:4406:593:c::11",
+      "kavlan-8": "2001:660:4406:594:c::11",
+      "kavlan-9": "2001:660:4406:595:c::11"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.17",
-      "ip6": "2001:660:4406:500:c:0::11",
+      "ip6": "2001:660:4406:500:c::11",
       "kavlan": true,
       "mac": "78:45:c4:fc:39:59",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-18.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-18.json
index 040e21d846ba5387bdf924ed615a4a5364cf532f..12033101edfe65493ca3a4d92dfc8bd96ee46412 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-18.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-18.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::12",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::12",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::12",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::12",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::12",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::12",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::12",
-      "kavlan-2": "2001:660:4406:581:c:0::12",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::12",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::12",
-      "kavlan-3": "2001:660:4406:582:c:0::12",
-      "kavlan-4": "2001:660:4406:590:c:0::12",
-      "kavlan-5": "2001:660:4406:591:c:0::12",
-      "kavlan-6": "2001:660:4406:592:c:0::12",
-      "kavlan-7": "2001:660:4406:593:c:0::12",
-      "kavlan-8": "2001:660:4406:594:c:0::12",
-      "kavlan-9": "2001:660:4406:595:c:0::12"
+      "kavlan-1": "2001:660:4406:580:c::12",
+      "kavlan-11": "2001:660:4406:1a0:50c::12",
+      "kavlan-12": "2001:660:4406:2a0:50c::12",
+      "kavlan-13": "2001:660:4406:4a0:50c::12",
+      "kavlan-14": "2001:660:4406:5a0:50c::12",
+      "kavlan-16": "2001:660:4406:7a0:50c::12",
+      "kavlan-18": "2001:660:4406:8a0:50c::12",
+      "kavlan-2": "2001:660:4406:581:c::12",
+      "kavlan-20": "2001:660:4406:3a0:50c::12",
+      "kavlan-21": "2001:660:4406:6a0:50c::12",
+      "kavlan-3": "2001:660:4406:582:c::12",
+      "kavlan-4": "2001:660:4406:590:c::12",
+      "kavlan-5": "2001:660:4406:591:c::12",
+      "kavlan-6": "2001:660:4406:592:c::12",
+      "kavlan-7": "2001:660:4406:593:c::12",
+      "kavlan-8": "2001:660:4406:594:c::12",
+      "kavlan-9": "2001:660:4406:595:c::12"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.18",
-      "ip6": "2001:660:4406:500:c:0::12",
+      "ip6": "2001:660:4406:500:c::12",
       "kavlan": true,
       "mac": "78:45:c4:fc:3b:06",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-19.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-19.json
index 3c501295123a1a5f33d9fcb244340016269ae206..59cbd8c9c70c6964dec0f0a42fa852f831652c6c 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-19.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-19.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::13",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::13",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::13",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::13",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::13",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::13",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::13",
-      "kavlan-2": "2001:660:4406:581:c:0::13",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::13",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::13",
-      "kavlan-3": "2001:660:4406:582:c:0::13",
-      "kavlan-4": "2001:660:4406:590:c:0::13",
-      "kavlan-5": "2001:660:4406:591:c:0::13",
-      "kavlan-6": "2001:660:4406:592:c:0::13",
-      "kavlan-7": "2001:660:4406:593:c:0::13",
-      "kavlan-8": "2001:660:4406:594:c:0::13",
-      "kavlan-9": "2001:660:4406:595:c:0::13"
+      "kavlan-1": "2001:660:4406:580:c::13",
+      "kavlan-11": "2001:660:4406:1a0:50c::13",
+      "kavlan-12": "2001:660:4406:2a0:50c::13",
+      "kavlan-13": "2001:660:4406:4a0:50c::13",
+      "kavlan-14": "2001:660:4406:5a0:50c::13",
+      "kavlan-16": "2001:660:4406:7a0:50c::13",
+      "kavlan-18": "2001:660:4406:8a0:50c::13",
+      "kavlan-2": "2001:660:4406:581:c::13",
+      "kavlan-20": "2001:660:4406:3a0:50c::13",
+      "kavlan-21": "2001:660:4406:6a0:50c::13",
+      "kavlan-3": "2001:660:4406:582:c::13",
+      "kavlan-4": "2001:660:4406:590:c::13",
+      "kavlan-5": "2001:660:4406:591:c::13",
+      "kavlan-6": "2001:660:4406:592:c::13",
+      "kavlan-7": "2001:660:4406:593:c::13",
+      "kavlan-8": "2001:660:4406:594:c::13",
+      "kavlan-9": "2001:660:4406:595:c::13"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.19",
-      "ip6": "2001:660:4406:500:c:0::13",
+      "ip6": "2001:660:4406:500:c::13",
       "kavlan": true,
       "mac": "78:45:c4:fc:39:e9",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-2.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-2.json
index 8dd723f756744ac868ffb9dd046be1e7bb464486..f115640b9110bc06e3898cd7c82438afc70511ea 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-2.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::2",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::2",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::2",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::2",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::2",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::2",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::2",
-      "kavlan-2": "2001:660:4406:581:c:0::2",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::2",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::2",
-      "kavlan-3": "2001:660:4406:582:c:0::2",
-      "kavlan-4": "2001:660:4406:590:c:0::2",
-      "kavlan-5": "2001:660:4406:591:c:0::2",
-      "kavlan-6": "2001:660:4406:592:c:0::2",
-      "kavlan-7": "2001:660:4406:593:c:0::2",
-      "kavlan-8": "2001:660:4406:594:c:0::2",
-      "kavlan-9": "2001:660:4406:595:c:0::2"
+      "kavlan-1": "2001:660:4406:580:c::2",
+      "kavlan-11": "2001:660:4406:1a0:50c::2",
+      "kavlan-12": "2001:660:4406:2a0:50c::2",
+      "kavlan-13": "2001:660:4406:4a0:50c::2",
+      "kavlan-14": "2001:660:4406:5a0:50c::2",
+      "kavlan-16": "2001:660:4406:7a0:50c::2",
+      "kavlan-18": "2001:660:4406:8a0:50c::2",
+      "kavlan-2": "2001:660:4406:581:c::2",
+      "kavlan-20": "2001:660:4406:3a0:50c::2",
+      "kavlan-21": "2001:660:4406:6a0:50c::2",
+      "kavlan-3": "2001:660:4406:582:c::2",
+      "kavlan-4": "2001:660:4406:590:c::2",
+      "kavlan-5": "2001:660:4406:591:c::2",
+      "kavlan-6": "2001:660:4406:592:c::2",
+      "kavlan-7": "2001:660:4406:593:c::2",
+      "kavlan-8": "2001:660:4406:594:c::2",
+      "kavlan-9": "2001:660:4406:595:c::2"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.2",
-      "ip6": "2001:660:4406:500:c:0::2",
+      "ip6": "2001:660:4406:500:c::2",
       "kavlan": true,
       "mac": "84:8f:69:fd:12:6e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-20.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-20.json
index 78dcba3adc76a1de645c78ffc977326c7f209fd2..eed09ef53ab68e2ca381cab345cd526902abbd2e 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-20.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-20.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::14",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::14",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::14",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::14",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::14",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::14",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::14",
-      "kavlan-2": "2001:660:4406:581:c:0::14",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::14",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::14",
-      "kavlan-3": "2001:660:4406:582:c:0::14",
-      "kavlan-4": "2001:660:4406:590:c:0::14",
-      "kavlan-5": "2001:660:4406:591:c:0::14",
-      "kavlan-6": "2001:660:4406:592:c:0::14",
-      "kavlan-7": "2001:660:4406:593:c:0::14",
-      "kavlan-8": "2001:660:4406:594:c:0::14",
-      "kavlan-9": "2001:660:4406:595:c:0::14"
+      "kavlan-1": "2001:660:4406:580:c::14",
+      "kavlan-11": "2001:660:4406:1a0:50c::14",
+      "kavlan-12": "2001:660:4406:2a0:50c::14",
+      "kavlan-13": "2001:660:4406:4a0:50c::14",
+      "kavlan-14": "2001:660:4406:5a0:50c::14",
+      "kavlan-16": "2001:660:4406:7a0:50c::14",
+      "kavlan-18": "2001:660:4406:8a0:50c::14",
+      "kavlan-2": "2001:660:4406:581:c::14",
+      "kavlan-20": "2001:660:4406:3a0:50c::14",
+      "kavlan-21": "2001:660:4406:6a0:50c::14",
+      "kavlan-3": "2001:660:4406:582:c::14",
+      "kavlan-4": "2001:660:4406:590:c::14",
+      "kavlan-5": "2001:660:4406:591:c::14",
+      "kavlan-6": "2001:660:4406:592:c::14",
+      "kavlan-7": "2001:660:4406:593:c::14",
+      "kavlan-8": "2001:660:4406:594:c::14",
+      "kavlan-9": "2001:660:4406:595:c::14"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.20",
-      "ip6": "2001:660:4406:500:c:0::14",
+      "ip6": "2001:660:4406:500:c::14",
       "kavlan": true,
       "mac": "78:45:c4:fc:39:fe",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-21.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-21.json
index 0268b5b83785ef44259167ce2d9149393d0d6d1b..faec5531c1691e8459bf028f32fda104ab2d3a07 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-21.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-21.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::15",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::15",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::15",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::15",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::15",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::15",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::15",
-      "kavlan-2": "2001:660:4406:581:c:0::15",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::15",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::15",
-      "kavlan-3": "2001:660:4406:582:c:0::15",
-      "kavlan-4": "2001:660:4406:590:c:0::15",
-      "kavlan-5": "2001:660:4406:591:c:0::15",
-      "kavlan-6": "2001:660:4406:592:c:0::15",
-      "kavlan-7": "2001:660:4406:593:c:0::15",
-      "kavlan-8": "2001:660:4406:594:c:0::15",
-      "kavlan-9": "2001:660:4406:595:c:0::15"
+      "kavlan-1": "2001:660:4406:580:c::15",
+      "kavlan-11": "2001:660:4406:1a0:50c::15",
+      "kavlan-12": "2001:660:4406:2a0:50c::15",
+      "kavlan-13": "2001:660:4406:4a0:50c::15",
+      "kavlan-14": "2001:660:4406:5a0:50c::15",
+      "kavlan-16": "2001:660:4406:7a0:50c::15",
+      "kavlan-18": "2001:660:4406:8a0:50c::15",
+      "kavlan-2": "2001:660:4406:581:c::15",
+      "kavlan-20": "2001:660:4406:3a0:50c::15",
+      "kavlan-21": "2001:660:4406:6a0:50c::15",
+      "kavlan-3": "2001:660:4406:582:c::15",
+      "kavlan-4": "2001:660:4406:590:c::15",
+      "kavlan-5": "2001:660:4406:591:c::15",
+      "kavlan-6": "2001:660:4406:592:c::15",
+      "kavlan-7": "2001:660:4406:593:c::15",
+      "kavlan-8": "2001:660:4406:594:c::15",
+      "kavlan-9": "2001:660:4406:595:c::15"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.21",
-      "ip6": "2001:660:4406:500:c:0::15",
+      "ip6": "2001:660:4406:500:c::15",
       "kavlan": true,
       "mac": "18:03:73:ff:cc:71",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-22.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-22.json
index 903c7c557fcd14b9ae063533b3dca5008ad135b1..54e8542e94ee1745b3093afc8d4251914c5cb6cb 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-22.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-22.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::16",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::16",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::16",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::16",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::16",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::16",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::16",
-      "kavlan-2": "2001:660:4406:581:c:0::16",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::16",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::16",
-      "kavlan-3": "2001:660:4406:582:c:0::16",
-      "kavlan-4": "2001:660:4406:590:c:0::16",
-      "kavlan-5": "2001:660:4406:591:c:0::16",
-      "kavlan-6": "2001:660:4406:592:c:0::16",
-      "kavlan-7": "2001:660:4406:593:c:0::16",
-      "kavlan-8": "2001:660:4406:594:c:0::16",
-      "kavlan-9": "2001:660:4406:595:c:0::16"
+      "kavlan-1": "2001:660:4406:580:c::16",
+      "kavlan-11": "2001:660:4406:1a0:50c::16",
+      "kavlan-12": "2001:660:4406:2a0:50c::16",
+      "kavlan-13": "2001:660:4406:4a0:50c::16",
+      "kavlan-14": "2001:660:4406:5a0:50c::16",
+      "kavlan-16": "2001:660:4406:7a0:50c::16",
+      "kavlan-18": "2001:660:4406:8a0:50c::16",
+      "kavlan-2": "2001:660:4406:581:c::16",
+      "kavlan-20": "2001:660:4406:3a0:50c::16",
+      "kavlan-21": "2001:660:4406:6a0:50c::16",
+      "kavlan-3": "2001:660:4406:582:c::16",
+      "kavlan-4": "2001:660:4406:590:c::16",
+      "kavlan-5": "2001:660:4406:591:c::16",
+      "kavlan-6": "2001:660:4406:592:c::16",
+      "kavlan-7": "2001:660:4406:593:c::16",
+      "kavlan-8": "2001:660:4406:594:c::16",
+      "kavlan-9": "2001:660:4406:595:c::16"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.22",
-      "ip6": "2001:660:4406:500:c:0::16",
+      "ip6": "2001:660:4406:500:c::16",
       "kavlan": true,
       "mac": "18:03:73:ff:ca:bb",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-23.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-23.json
index 81a40a088347100a2bc9a73c4268fae804e11bdf..dd4c13dc2a83bb306ca34bbdad9020118c00b240 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-23.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-23.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::17",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::17",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::17",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::17",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::17",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::17",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::17",
-      "kavlan-2": "2001:660:4406:581:c:0::17",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::17",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::17",
-      "kavlan-3": "2001:660:4406:582:c:0::17",
-      "kavlan-4": "2001:660:4406:590:c:0::17",
-      "kavlan-5": "2001:660:4406:591:c:0::17",
-      "kavlan-6": "2001:660:4406:592:c:0::17",
-      "kavlan-7": "2001:660:4406:593:c:0::17",
-      "kavlan-8": "2001:660:4406:594:c:0::17",
-      "kavlan-9": "2001:660:4406:595:c:0::17"
+      "kavlan-1": "2001:660:4406:580:c::17",
+      "kavlan-11": "2001:660:4406:1a0:50c::17",
+      "kavlan-12": "2001:660:4406:2a0:50c::17",
+      "kavlan-13": "2001:660:4406:4a0:50c::17",
+      "kavlan-14": "2001:660:4406:5a0:50c::17",
+      "kavlan-16": "2001:660:4406:7a0:50c::17",
+      "kavlan-18": "2001:660:4406:8a0:50c::17",
+      "kavlan-2": "2001:660:4406:581:c::17",
+      "kavlan-20": "2001:660:4406:3a0:50c::17",
+      "kavlan-21": "2001:660:4406:6a0:50c::17",
+      "kavlan-3": "2001:660:4406:582:c::17",
+      "kavlan-4": "2001:660:4406:590:c::17",
+      "kavlan-5": "2001:660:4406:591:c::17",
+      "kavlan-6": "2001:660:4406:592:c::17",
+      "kavlan-7": "2001:660:4406:593:c::17",
+      "kavlan-8": "2001:660:4406:594:c::17",
+      "kavlan-9": "2001:660:4406:595:c::17"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.23",
-      "ip6": "2001:660:4406:500:c:0::17",
+      "ip6": "2001:660:4406:500:c::17",
       "kavlan": true,
       "mac": "84:8f:69:fd:0b:6c",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-24.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-24.json
index b7c776f69cbce5192b77704fa822e4b3a9a6efa1..44661b8021f94407362a83664b4b85fdf756eb7b 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-24.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-24.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::18",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::18",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::18",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::18",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::18",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::18",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::18",
-      "kavlan-2": "2001:660:4406:581:c:0::18",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::18",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::18",
-      "kavlan-3": "2001:660:4406:582:c:0::18",
-      "kavlan-4": "2001:660:4406:590:c:0::18",
-      "kavlan-5": "2001:660:4406:591:c:0::18",
-      "kavlan-6": "2001:660:4406:592:c:0::18",
-      "kavlan-7": "2001:660:4406:593:c:0::18",
-      "kavlan-8": "2001:660:4406:594:c:0::18",
-      "kavlan-9": "2001:660:4406:595:c:0::18"
+      "kavlan-1": "2001:660:4406:580:c::18",
+      "kavlan-11": "2001:660:4406:1a0:50c::18",
+      "kavlan-12": "2001:660:4406:2a0:50c::18",
+      "kavlan-13": "2001:660:4406:4a0:50c::18",
+      "kavlan-14": "2001:660:4406:5a0:50c::18",
+      "kavlan-16": "2001:660:4406:7a0:50c::18",
+      "kavlan-18": "2001:660:4406:8a0:50c::18",
+      "kavlan-2": "2001:660:4406:581:c::18",
+      "kavlan-20": "2001:660:4406:3a0:50c::18",
+      "kavlan-21": "2001:660:4406:6a0:50c::18",
+      "kavlan-3": "2001:660:4406:582:c::18",
+      "kavlan-4": "2001:660:4406:590:c::18",
+      "kavlan-5": "2001:660:4406:591:c::18",
+      "kavlan-6": "2001:660:4406:592:c::18",
+      "kavlan-7": "2001:660:4406:593:c::18",
+      "kavlan-8": "2001:660:4406:594:c::18",
+      "kavlan-9": "2001:660:4406:595:c::18"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.24",
-      "ip6": "2001:660:4406:500:c:0::18",
+      "ip6": "2001:660:4406:500:c::18",
       "kavlan": true,
       "mac": "84:8f:69:fd:25:65",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-25.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-25.json
index 654e3887037b07c3bf44fbe0d6c9359e1cd08c35..9cf0304d28f4ed204e352f6e65e7a0a1eb34bad0 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-25.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-25.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::19",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::19",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::19",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::19",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::19",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::19",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::19",
-      "kavlan-2": "2001:660:4406:581:c:0::19",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::19",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::19",
-      "kavlan-3": "2001:660:4406:582:c:0::19",
-      "kavlan-4": "2001:660:4406:590:c:0::19",
-      "kavlan-5": "2001:660:4406:591:c:0::19",
-      "kavlan-6": "2001:660:4406:592:c:0::19",
-      "kavlan-7": "2001:660:4406:593:c:0::19",
-      "kavlan-8": "2001:660:4406:594:c:0::19",
-      "kavlan-9": "2001:660:4406:595:c:0::19"
+      "kavlan-1": "2001:660:4406:580:c::19",
+      "kavlan-11": "2001:660:4406:1a0:50c::19",
+      "kavlan-12": "2001:660:4406:2a0:50c::19",
+      "kavlan-13": "2001:660:4406:4a0:50c::19",
+      "kavlan-14": "2001:660:4406:5a0:50c::19",
+      "kavlan-16": "2001:660:4406:7a0:50c::19",
+      "kavlan-18": "2001:660:4406:8a0:50c::19",
+      "kavlan-2": "2001:660:4406:581:c::19",
+      "kavlan-20": "2001:660:4406:3a0:50c::19",
+      "kavlan-21": "2001:660:4406:6a0:50c::19",
+      "kavlan-3": "2001:660:4406:582:c::19",
+      "kavlan-4": "2001:660:4406:590:c::19",
+      "kavlan-5": "2001:660:4406:591:c::19",
+      "kavlan-6": "2001:660:4406:592:c::19",
+      "kavlan-7": "2001:660:4406:593:c::19",
+      "kavlan-8": "2001:660:4406:594:c::19",
+      "kavlan-9": "2001:660:4406:595:c::19"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.25",
-      "ip6": "2001:660:4406:500:c:0::19",
+      "ip6": "2001:660:4406:500:c::19",
       "kavlan": true,
       "mac": "18:03:73:ff:c6:d4",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-26.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-26.json
index 66d54ad4a66ed9fd31bdc5ab2ddb10f57f58b40a..a53cba437c71d067f0ae01d087ec97a2109c4b38 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-26.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-26.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::1a",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::1a",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::1a",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::1a",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::1a",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::1a",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::1a",
-      "kavlan-2": "2001:660:4406:581:c:0::1a",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::1a",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::1a",
-      "kavlan-3": "2001:660:4406:582:c:0::1a",
-      "kavlan-4": "2001:660:4406:590:c:0::1a",
-      "kavlan-5": "2001:660:4406:591:c:0::1a",
-      "kavlan-6": "2001:660:4406:592:c:0::1a",
-      "kavlan-7": "2001:660:4406:593:c:0::1a",
-      "kavlan-8": "2001:660:4406:594:c:0::1a",
-      "kavlan-9": "2001:660:4406:595:c:0::1a"
+      "kavlan-1": "2001:660:4406:580:c::1a",
+      "kavlan-11": "2001:660:4406:1a0:50c::1a",
+      "kavlan-12": "2001:660:4406:2a0:50c::1a",
+      "kavlan-13": "2001:660:4406:4a0:50c::1a",
+      "kavlan-14": "2001:660:4406:5a0:50c::1a",
+      "kavlan-16": "2001:660:4406:7a0:50c::1a",
+      "kavlan-18": "2001:660:4406:8a0:50c::1a",
+      "kavlan-2": "2001:660:4406:581:c::1a",
+      "kavlan-20": "2001:660:4406:3a0:50c::1a",
+      "kavlan-21": "2001:660:4406:6a0:50c::1a",
+      "kavlan-3": "2001:660:4406:582:c::1a",
+      "kavlan-4": "2001:660:4406:590:c::1a",
+      "kavlan-5": "2001:660:4406:591:c::1a",
+      "kavlan-6": "2001:660:4406:592:c::1a",
+      "kavlan-7": "2001:660:4406:593:c::1a",
+      "kavlan-8": "2001:660:4406:594:c::1a",
+      "kavlan-9": "2001:660:4406:595:c::1a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.26",
-      "ip6": "2001:660:4406:500:c:0::1a",
+      "ip6": "2001:660:4406:500:c::1a",
       "kavlan": true,
       "mac": "84:8f:69:fd:0d:3d",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-27.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-27.json
index 31bc7c3970790b54974c08fc3853e2f0135efdcf..2df6d39f791f9d01fbf530f439fb7cd875fbfe7b 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-27.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-27.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::1b",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::1b",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::1b",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::1b",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::1b",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::1b",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::1b",
-      "kavlan-2": "2001:660:4406:581:c:0::1b",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::1b",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::1b",
-      "kavlan-3": "2001:660:4406:582:c:0::1b",
-      "kavlan-4": "2001:660:4406:590:c:0::1b",
-      "kavlan-5": "2001:660:4406:591:c:0::1b",
-      "kavlan-6": "2001:660:4406:592:c:0::1b",
-      "kavlan-7": "2001:660:4406:593:c:0::1b",
-      "kavlan-8": "2001:660:4406:594:c:0::1b",
-      "kavlan-9": "2001:660:4406:595:c:0::1b"
+      "kavlan-1": "2001:660:4406:580:c::1b",
+      "kavlan-11": "2001:660:4406:1a0:50c::1b",
+      "kavlan-12": "2001:660:4406:2a0:50c::1b",
+      "kavlan-13": "2001:660:4406:4a0:50c::1b",
+      "kavlan-14": "2001:660:4406:5a0:50c::1b",
+      "kavlan-16": "2001:660:4406:7a0:50c::1b",
+      "kavlan-18": "2001:660:4406:8a0:50c::1b",
+      "kavlan-2": "2001:660:4406:581:c::1b",
+      "kavlan-20": "2001:660:4406:3a0:50c::1b",
+      "kavlan-21": "2001:660:4406:6a0:50c::1b",
+      "kavlan-3": "2001:660:4406:582:c::1b",
+      "kavlan-4": "2001:660:4406:590:c::1b",
+      "kavlan-5": "2001:660:4406:591:c::1b",
+      "kavlan-6": "2001:660:4406:592:c::1b",
+      "kavlan-7": "2001:660:4406:593:c::1b",
+      "kavlan-8": "2001:660:4406:594:c::1b",
+      "kavlan-9": "2001:660:4406:595:c::1b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.27",
-      "ip6": "2001:660:4406:500:c:0::1b",
+      "ip6": "2001:660:4406:500:c::1b",
       "kavlan": true,
       "mac": "84:8f:69:fd:2c:d3",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-28.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-28.json
index 18a6be1534d27cbb8a32994751871306f4d4af85..fdbe325aa518f45b02cceda65b29511adb56a6d4 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-28.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-28.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::1c",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::1c",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::1c",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::1c",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::1c",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::1c",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::1c",
-      "kavlan-2": "2001:660:4406:581:c:0::1c",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::1c",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::1c",
-      "kavlan-3": "2001:660:4406:582:c:0::1c",
-      "kavlan-4": "2001:660:4406:590:c:0::1c",
-      "kavlan-5": "2001:660:4406:591:c:0::1c",
-      "kavlan-6": "2001:660:4406:592:c:0::1c",
-      "kavlan-7": "2001:660:4406:593:c:0::1c",
-      "kavlan-8": "2001:660:4406:594:c:0::1c",
-      "kavlan-9": "2001:660:4406:595:c:0::1c"
+      "kavlan-1": "2001:660:4406:580:c::1c",
+      "kavlan-11": "2001:660:4406:1a0:50c::1c",
+      "kavlan-12": "2001:660:4406:2a0:50c::1c",
+      "kavlan-13": "2001:660:4406:4a0:50c::1c",
+      "kavlan-14": "2001:660:4406:5a0:50c::1c",
+      "kavlan-16": "2001:660:4406:7a0:50c::1c",
+      "kavlan-18": "2001:660:4406:8a0:50c::1c",
+      "kavlan-2": "2001:660:4406:581:c::1c",
+      "kavlan-20": "2001:660:4406:3a0:50c::1c",
+      "kavlan-21": "2001:660:4406:6a0:50c::1c",
+      "kavlan-3": "2001:660:4406:582:c::1c",
+      "kavlan-4": "2001:660:4406:590:c::1c",
+      "kavlan-5": "2001:660:4406:591:c::1c",
+      "kavlan-6": "2001:660:4406:592:c::1c",
+      "kavlan-7": "2001:660:4406:593:c::1c",
+      "kavlan-8": "2001:660:4406:594:c::1c",
+      "kavlan-9": "2001:660:4406:595:c::1c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.28",
-      "ip6": "2001:660:4406:500:c:0::1c",
+      "ip6": "2001:660:4406:500:c::1c",
       "kavlan": true,
       "mac": "84:8f:69:fd:0f:20",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-29.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-29.json
index 81a4a8ba08dacf86c9aef46b1a6d89420add417c..b9d0e01d1510654dafa6dc80010bf085440ec26e 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-29.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-29.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::1d",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::1d",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::1d",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::1d",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::1d",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::1d",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::1d",
-      "kavlan-2": "2001:660:4406:581:c:0::1d",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::1d",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::1d",
-      "kavlan-3": "2001:660:4406:582:c:0::1d",
-      "kavlan-4": "2001:660:4406:590:c:0::1d",
-      "kavlan-5": "2001:660:4406:591:c:0::1d",
-      "kavlan-6": "2001:660:4406:592:c:0::1d",
-      "kavlan-7": "2001:660:4406:593:c:0::1d",
-      "kavlan-8": "2001:660:4406:594:c:0::1d",
-      "kavlan-9": "2001:660:4406:595:c:0::1d"
+      "kavlan-1": "2001:660:4406:580:c::1d",
+      "kavlan-11": "2001:660:4406:1a0:50c::1d",
+      "kavlan-12": "2001:660:4406:2a0:50c::1d",
+      "kavlan-13": "2001:660:4406:4a0:50c::1d",
+      "kavlan-14": "2001:660:4406:5a0:50c::1d",
+      "kavlan-16": "2001:660:4406:7a0:50c::1d",
+      "kavlan-18": "2001:660:4406:8a0:50c::1d",
+      "kavlan-2": "2001:660:4406:581:c::1d",
+      "kavlan-20": "2001:660:4406:3a0:50c::1d",
+      "kavlan-21": "2001:660:4406:6a0:50c::1d",
+      "kavlan-3": "2001:660:4406:582:c::1d",
+      "kavlan-4": "2001:660:4406:590:c::1d",
+      "kavlan-5": "2001:660:4406:591:c::1d",
+      "kavlan-6": "2001:660:4406:592:c::1d",
+      "kavlan-7": "2001:660:4406:593:c::1d",
+      "kavlan-8": "2001:660:4406:594:c::1d",
+      "kavlan-9": "2001:660:4406:595:c::1d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.29",
-      "ip6": "2001:660:4406:500:c:0::1d",
+      "ip6": "2001:660:4406:500:c::1d",
       "kavlan": true,
       "mac": "84:8f:69:fd:2e:cb",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-3.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-3.json
index 26e3d6025e903cb5745228652e7ff0423acfabeb..fff1e1e51a86d24194ecb9234c6172bab522c4b5 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-3.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::3",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::3",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::3",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::3",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::3",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::3",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::3",
-      "kavlan-2": "2001:660:4406:581:c:0::3",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::3",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::3",
-      "kavlan-3": "2001:660:4406:582:c:0::3",
-      "kavlan-4": "2001:660:4406:590:c:0::3",
-      "kavlan-5": "2001:660:4406:591:c:0::3",
-      "kavlan-6": "2001:660:4406:592:c:0::3",
-      "kavlan-7": "2001:660:4406:593:c:0::3",
-      "kavlan-8": "2001:660:4406:594:c:0::3",
-      "kavlan-9": "2001:660:4406:595:c:0::3"
+      "kavlan-1": "2001:660:4406:580:c::3",
+      "kavlan-11": "2001:660:4406:1a0:50c::3",
+      "kavlan-12": "2001:660:4406:2a0:50c::3",
+      "kavlan-13": "2001:660:4406:4a0:50c::3",
+      "kavlan-14": "2001:660:4406:5a0:50c::3",
+      "kavlan-16": "2001:660:4406:7a0:50c::3",
+      "kavlan-18": "2001:660:4406:8a0:50c::3",
+      "kavlan-2": "2001:660:4406:581:c::3",
+      "kavlan-20": "2001:660:4406:3a0:50c::3",
+      "kavlan-21": "2001:660:4406:6a0:50c::3",
+      "kavlan-3": "2001:660:4406:582:c::3",
+      "kavlan-4": "2001:660:4406:590:c::3",
+      "kavlan-5": "2001:660:4406:591:c::3",
+      "kavlan-6": "2001:660:4406:592:c::3",
+      "kavlan-7": "2001:660:4406:593:c::3",
+      "kavlan-8": "2001:660:4406:594:c::3",
+      "kavlan-9": "2001:660:4406:595:c::3"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.3",
-      "ip6": "2001:660:4406:500:c:0::3",
+      "ip6": "2001:660:4406:500:c::3",
       "kavlan": true,
       "mac": "84:8f:69:fd:12:7a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-30.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-30.json
index 6634e73dfe46a9d64ea487b0a941c8239b48f988..104221dc0286c86efd60ed3d3e4dc23a6cd9d50d 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-30.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-30.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::1e",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::1e",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::1e",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::1e",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::1e",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::1e",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::1e",
-      "kavlan-2": "2001:660:4406:581:c:0::1e",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::1e",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::1e",
-      "kavlan-3": "2001:660:4406:582:c:0::1e",
-      "kavlan-4": "2001:660:4406:590:c:0::1e",
-      "kavlan-5": "2001:660:4406:591:c:0::1e",
-      "kavlan-6": "2001:660:4406:592:c:0::1e",
-      "kavlan-7": "2001:660:4406:593:c:0::1e",
-      "kavlan-8": "2001:660:4406:594:c:0::1e",
-      "kavlan-9": "2001:660:4406:595:c:0::1e"
+      "kavlan-1": "2001:660:4406:580:c::1e",
+      "kavlan-11": "2001:660:4406:1a0:50c::1e",
+      "kavlan-12": "2001:660:4406:2a0:50c::1e",
+      "kavlan-13": "2001:660:4406:4a0:50c::1e",
+      "kavlan-14": "2001:660:4406:5a0:50c::1e",
+      "kavlan-16": "2001:660:4406:7a0:50c::1e",
+      "kavlan-18": "2001:660:4406:8a0:50c::1e",
+      "kavlan-2": "2001:660:4406:581:c::1e",
+      "kavlan-20": "2001:660:4406:3a0:50c::1e",
+      "kavlan-21": "2001:660:4406:6a0:50c::1e",
+      "kavlan-3": "2001:660:4406:582:c::1e",
+      "kavlan-4": "2001:660:4406:590:c::1e",
+      "kavlan-5": "2001:660:4406:591:c::1e",
+      "kavlan-6": "2001:660:4406:592:c::1e",
+      "kavlan-7": "2001:660:4406:593:c::1e",
+      "kavlan-8": "2001:660:4406:594:c::1e",
+      "kavlan-9": "2001:660:4406:595:c::1e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.30",
-      "ip6": "2001:660:4406:500:c:0::1e",
+      "ip6": "2001:660:4406:500:c::1e",
       "kavlan": true,
       "mac": "84:8f:69:fd:2b:f5",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-31.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-31.json
index c105c90a5e17d5bbc5f41836aa8dc3aa1c5a64a8..9d0a30abd5b8ec5c86ff5a5a40a1b7df2e62ad7d 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-31.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-31.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::1f",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::1f",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::1f",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::1f",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::1f",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::1f",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::1f",
-      "kavlan-2": "2001:660:4406:581:c:0::1f",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::1f",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::1f",
-      "kavlan-3": "2001:660:4406:582:c:0::1f",
-      "kavlan-4": "2001:660:4406:590:c:0::1f",
-      "kavlan-5": "2001:660:4406:591:c:0::1f",
-      "kavlan-6": "2001:660:4406:592:c:0::1f",
-      "kavlan-7": "2001:660:4406:593:c:0::1f",
-      "kavlan-8": "2001:660:4406:594:c:0::1f",
-      "kavlan-9": "2001:660:4406:595:c:0::1f"
+      "kavlan-1": "2001:660:4406:580:c::1f",
+      "kavlan-11": "2001:660:4406:1a0:50c::1f",
+      "kavlan-12": "2001:660:4406:2a0:50c::1f",
+      "kavlan-13": "2001:660:4406:4a0:50c::1f",
+      "kavlan-14": "2001:660:4406:5a0:50c::1f",
+      "kavlan-16": "2001:660:4406:7a0:50c::1f",
+      "kavlan-18": "2001:660:4406:8a0:50c::1f",
+      "kavlan-2": "2001:660:4406:581:c::1f",
+      "kavlan-20": "2001:660:4406:3a0:50c::1f",
+      "kavlan-21": "2001:660:4406:6a0:50c::1f",
+      "kavlan-3": "2001:660:4406:582:c::1f",
+      "kavlan-4": "2001:660:4406:590:c::1f",
+      "kavlan-5": "2001:660:4406:591:c::1f",
+      "kavlan-6": "2001:660:4406:592:c::1f",
+      "kavlan-7": "2001:660:4406:593:c::1f",
+      "kavlan-8": "2001:660:4406:594:c::1f",
+      "kavlan-9": "2001:660:4406:595:c::1f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.31",
-      "ip6": "2001:660:4406:500:c:0::1f",
+      "ip6": "2001:660:4406:500:c::1f",
       "kavlan": true,
       "mac": "84:8f:69:fd:27:2d",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-32.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-32.json
index 50720b769631805cfae38db4e40c73371aa62ca5..77ad975c21b6b763d4bd3ed9b9a88847155381cb 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-32.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-32.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::20",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::20",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::20",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::20",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::20",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::20",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::20",
-      "kavlan-2": "2001:660:4406:581:c:0::20",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::20",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::20",
-      "kavlan-3": "2001:660:4406:582:c:0::20",
-      "kavlan-4": "2001:660:4406:590:c:0::20",
-      "kavlan-5": "2001:660:4406:591:c:0::20",
-      "kavlan-6": "2001:660:4406:592:c:0::20",
-      "kavlan-7": "2001:660:4406:593:c:0::20",
-      "kavlan-8": "2001:660:4406:594:c:0::20",
-      "kavlan-9": "2001:660:4406:595:c:0::20"
+      "kavlan-1": "2001:660:4406:580:c::20",
+      "kavlan-11": "2001:660:4406:1a0:50c::20",
+      "kavlan-12": "2001:660:4406:2a0:50c::20",
+      "kavlan-13": "2001:660:4406:4a0:50c::20",
+      "kavlan-14": "2001:660:4406:5a0:50c::20",
+      "kavlan-16": "2001:660:4406:7a0:50c::20",
+      "kavlan-18": "2001:660:4406:8a0:50c::20",
+      "kavlan-2": "2001:660:4406:581:c::20",
+      "kavlan-20": "2001:660:4406:3a0:50c::20",
+      "kavlan-21": "2001:660:4406:6a0:50c::20",
+      "kavlan-3": "2001:660:4406:582:c::20",
+      "kavlan-4": "2001:660:4406:590:c::20",
+      "kavlan-5": "2001:660:4406:591:c::20",
+      "kavlan-6": "2001:660:4406:592:c::20",
+      "kavlan-7": "2001:660:4406:593:c::20",
+      "kavlan-8": "2001:660:4406:594:c::20",
+      "kavlan-9": "2001:660:4406:595:c::20"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.32",
-      "ip6": "2001:660:4406:500:c:0::20",
+      "ip6": "2001:660:4406:500:c::20",
       "kavlan": true,
       "mac": "18:03:73:ff:c6:86",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-33.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-33.json
index b5a57c0b5819e070329f74af0d3e224a24c77afa..e9b38f505ff568ec7695108433443382d5a46d58 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-33.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-33.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::21",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::21",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::21",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::21",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::21",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::21",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::21",
-      "kavlan-2": "2001:660:4406:581:c:0::21",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::21",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::21",
-      "kavlan-3": "2001:660:4406:582:c:0::21",
-      "kavlan-4": "2001:660:4406:590:c:0::21",
-      "kavlan-5": "2001:660:4406:591:c:0::21",
-      "kavlan-6": "2001:660:4406:592:c:0::21",
-      "kavlan-7": "2001:660:4406:593:c:0::21",
-      "kavlan-8": "2001:660:4406:594:c:0::21",
-      "kavlan-9": "2001:660:4406:595:c:0::21"
+      "kavlan-1": "2001:660:4406:580:c::21",
+      "kavlan-11": "2001:660:4406:1a0:50c::21",
+      "kavlan-12": "2001:660:4406:2a0:50c::21",
+      "kavlan-13": "2001:660:4406:4a0:50c::21",
+      "kavlan-14": "2001:660:4406:5a0:50c::21",
+      "kavlan-16": "2001:660:4406:7a0:50c::21",
+      "kavlan-18": "2001:660:4406:8a0:50c::21",
+      "kavlan-2": "2001:660:4406:581:c::21",
+      "kavlan-20": "2001:660:4406:3a0:50c::21",
+      "kavlan-21": "2001:660:4406:6a0:50c::21",
+      "kavlan-3": "2001:660:4406:582:c::21",
+      "kavlan-4": "2001:660:4406:590:c::21",
+      "kavlan-5": "2001:660:4406:591:c::21",
+      "kavlan-6": "2001:660:4406:592:c::21",
+      "kavlan-7": "2001:660:4406:593:c::21",
+      "kavlan-8": "2001:660:4406:594:c::21",
+      "kavlan-9": "2001:660:4406:595:c::21"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.33",
-      "ip6": "2001:660:4406:500:c:0::21",
+      "ip6": "2001:660:4406:500:c::21",
       "kavlan": true,
       "mac": "78:45:c4:fc:3b:21",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-34.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-34.json
index 33024b1873f831977002373a8e805a1fd47785e8..b7137c5862d1d81783e8ece94cb6ce25871fe505 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-34.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-34.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::22",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::22",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::22",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::22",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::22",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::22",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::22",
-      "kavlan-2": "2001:660:4406:581:c:0::22",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::22",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::22",
-      "kavlan-3": "2001:660:4406:582:c:0::22",
-      "kavlan-4": "2001:660:4406:590:c:0::22",
-      "kavlan-5": "2001:660:4406:591:c:0::22",
-      "kavlan-6": "2001:660:4406:592:c:0::22",
-      "kavlan-7": "2001:660:4406:593:c:0::22",
-      "kavlan-8": "2001:660:4406:594:c:0::22",
-      "kavlan-9": "2001:660:4406:595:c:0::22"
+      "kavlan-1": "2001:660:4406:580:c::22",
+      "kavlan-11": "2001:660:4406:1a0:50c::22",
+      "kavlan-12": "2001:660:4406:2a0:50c::22",
+      "kavlan-13": "2001:660:4406:4a0:50c::22",
+      "kavlan-14": "2001:660:4406:5a0:50c::22",
+      "kavlan-16": "2001:660:4406:7a0:50c::22",
+      "kavlan-18": "2001:660:4406:8a0:50c::22",
+      "kavlan-2": "2001:660:4406:581:c::22",
+      "kavlan-20": "2001:660:4406:3a0:50c::22",
+      "kavlan-21": "2001:660:4406:6a0:50c::22",
+      "kavlan-3": "2001:660:4406:582:c::22",
+      "kavlan-4": "2001:660:4406:590:c::22",
+      "kavlan-5": "2001:660:4406:591:c::22",
+      "kavlan-6": "2001:660:4406:592:c::22",
+      "kavlan-7": "2001:660:4406:593:c::22",
+      "kavlan-8": "2001:660:4406:594:c::22",
+      "kavlan-9": "2001:660:4406:595:c::22"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.34",
-      "ip6": "2001:660:4406:500:c:0::22",
+      "ip6": "2001:660:4406:500:c::22",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:dc",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-35.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-35.json
index 0967f455d1180e37dfb7bc82627384fb98cdd06d..c1aff0b06971c1ae8588492ff69f684ff57674e4 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-35.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-35.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::23",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::23",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::23",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::23",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::23",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::23",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::23",
-      "kavlan-2": "2001:660:4406:581:c:0::23",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::23",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::23",
-      "kavlan-3": "2001:660:4406:582:c:0::23",
-      "kavlan-4": "2001:660:4406:590:c:0::23",
-      "kavlan-5": "2001:660:4406:591:c:0::23",
-      "kavlan-6": "2001:660:4406:592:c:0::23",
-      "kavlan-7": "2001:660:4406:593:c:0::23",
-      "kavlan-8": "2001:660:4406:594:c:0::23",
-      "kavlan-9": "2001:660:4406:595:c:0::23"
+      "kavlan-1": "2001:660:4406:580:c::23",
+      "kavlan-11": "2001:660:4406:1a0:50c::23",
+      "kavlan-12": "2001:660:4406:2a0:50c::23",
+      "kavlan-13": "2001:660:4406:4a0:50c::23",
+      "kavlan-14": "2001:660:4406:5a0:50c::23",
+      "kavlan-16": "2001:660:4406:7a0:50c::23",
+      "kavlan-18": "2001:660:4406:8a0:50c::23",
+      "kavlan-2": "2001:660:4406:581:c::23",
+      "kavlan-20": "2001:660:4406:3a0:50c::23",
+      "kavlan-21": "2001:660:4406:6a0:50c::23",
+      "kavlan-3": "2001:660:4406:582:c::23",
+      "kavlan-4": "2001:660:4406:590:c::23",
+      "kavlan-5": "2001:660:4406:591:c::23",
+      "kavlan-6": "2001:660:4406:592:c::23",
+      "kavlan-7": "2001:660:4406:593:c::23",
+      "kavlan-8": "2001:660:4406:594:c::23",
+      "kavlan-9": "2001:660:4406:595:c::23"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.35",
-      "ip6": "2001:660:4406:500:c:0::23",
+      "ip6": "2001:660:4406:500:c::23",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:be",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-36.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-36.json
index e613ad4f6168109e86edd40c51e7c00e49235585..e32b3df1e105402fb1bbc416d71a892b7949411d 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-36.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-36.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::24",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::24",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::24",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::24",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::24",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::24",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::24",
-      "kavlan-2": "2001:660:4406:581:c:0::24",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::24",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::24",
-      "kavlan-3": "2001:660:4406:582:c:0::24",
-      "kavlan-4": "2001:660:4406:590:c:0::24",
-      "kavlan-5": "2001:660:4406:591:c:0::24",
-      "kavlan-6": "2001:660:4406:592:c:0::24",
-      "kavlan-7": "2001:660:4406:593:c:0::24",
-      "kavlan-8": "2001:660:4406:594:c:0::24",
-      "kavlan-9": "2001:660:4406:595:c:0::24"
+      "kavlan-1": "2001:660:4406:580:c::24",
+      "kavlan-11": "2001:660:4406:1a0:50c::24",
+      "kavlan-12": "2001:660:4406:2a0:50c::24",
+      "kavlan-13": "2001:660:4406:4a0:50c::24",
+      "kavlan-14": "2001:660:4406:5a0:50c::24",
+      "kavlan-16": "2001:660:4406:7a0:50c::24",
+      "kavlan-18": "2001:660:4406:8a0:50c::24",
+      "kavlan-2": "2001:660:4406:581:c::24",
+      "kavlan-20": "2001:660:4406:3a0:50c::24",
+      "kavlan-21": "2001:660:4406:6a0:50c::24",
+      "kavlan-3": "2001:660:4406:582:c::24",
+      "kavlan-4": "2001:660:4406:590:c::24",
+      "kavlan-5": "2001:660:4406:591:c::24",
+      "kavlan-6": "2001:660:4406:592:c::24",
+      "kavlan-7": "2001:660:4406:593:c::24",
+      "kavlan-8": "2001:660:4406:594:c::24",
+      "kavlan-9": "2001:660:4406:595:c::24"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.36",
-      "ip6": "2001:660:4406:500:c:0::24",
+      "ip6": "2001:660:4406:500:c::24",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:6d",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-37.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-37.json
index d9db3f6dae389b97bdd4c18121167987bea73fdb..fa60a05fecdc13f4df23f3d5fc5f087bb781059c 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-37.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-37.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::25",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::25",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::25",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::25",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::25",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::25",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::25",
-      "kavlan-2": "2001:660:4406:581:c:0::25",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::25",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::25",
-      "kavlan-3": "2001:660:4406:582:c:0::25",
-      "kavlan-4": "2001:660:4406:590:c:0::25",
-      "kavlan-5": "2001:660:4406:591:c:0::25",
-      "kavlan-6": "2001:660:4406:592:c:0::25",
-      "kavlan-7": "2001:660:4406:593:c:0::25",
-      "kavlan-8": "2001:660:4406:594:c:0::25",
-      "kavlan-9": "2001:660:4406:595:c:0::25"
+      "kavlan-1": "2001:660:4406:580:c::25",
+      "kavlan-11": "2001:660:4406:1a0:50c::25",
+      "kavlan-12": "2001:660:4406:2a0:50c::25",
+      "kavlan-13": "2001:660:4406:4a0:50c::25",
+      "kavlan-14": "2001:660:4406:5a0:50c::25",
+      "kavlan-16": "2001:660:4406:7a0:50c::25",
+      "kavlan-18": "2001:660:4406:8a0:50c::25",
+      "kavlan-2": "2001:660:4406:581:c::25",
+      "kavlan-20": "2001:660:4406:3a0:50c::25",
+      "kavlan-21": "2001:660:4406:6a0:50c::25",
+      "kavlan-3": "2001:660:4406:582:c::25",
+      "kavlan-4": "2001:660:4406:590:c::25",
+      "kavlan-5": "2001:660:4406:591:c::25",
+      "kavlan-6": "2001:660:4406:592:c::25",
+      "kavlan-7": "2001:660:4406:593:c::25",
+      "kavlan-8": "2001:660:4406:594:c::25",
+      "kavlan-9": "2001:660:4406:595:c::25"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.37",
-      "ip6": "2001:660:4406:500:c:0::25",
+      "ip6": "2001:660:4406:500:c::25",
       "kavlan": true,
       "mac": "84:8f:69:fd:3e:bd",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-38.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-38.json
index ec935eaceb55ddbeca24d8f9a2059eb6892c97b7..5c88ae707c3b8e604b9005163f011e477b3d65be 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-38.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-38.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::26",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::26",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::26",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::26",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::26",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::26",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::26",
-      "kavlan-2": "2001:660:4406:581:c:0::26",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::26",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::26",
-      "kavlan-3": "2001:660:4406:582:c:0::26",
-      "kavlan-4": "2001:660:4406:590:c:0::26",
-      "kavlan-5": "2001:660:4406:591:c:0::26",
-      "kavlan-6": "2001:660:4406:592:c:0::26",
-      "kavlan-7": "2001:660:4406:593:c:0::26",
-      "kavlan-8": "2001:660:4406:594:c:0::26",
-      "kavlan-9": "2001:660:4406:595:c:0::26"
+      "kavlan-1": "2001:660:4406:580:c::26",
+      "kavlan-11": "2001:660:4406:1a0:50c::26",
+      "kavlan-12": "2001:660:4406:2a0:50c::26",
+      "kavlan-13": "2001:660:4406:4a0:50c::26",
+      "kavlan-14": "2001:660:4406:5a0:50c::26",
+      "kavlan-16": "2001:660:4406:7a0:50c::26",
+      "kavlan-18": "2001:660:4406:8a0:50c::26",
+      "kavlan-2": "2001:660:4406:581:c::26",
+      "kavlan-20": "2001:660:4406:3a0:50c::26",
+      "kavlan-21": "2001:660:4406:6a0:50c::26",
+      "kavlan-3": "2001:660:4406:582:c::26",
+      "kavlan-4": "2001:660:4406:590:c::26",
+      "kavlan-5": "2001:660:4406:591:c::26",
+      "kavlan-6": "2001:660:4406:592:c::26",
+      "kavlan-7": "2001:660:4406:593:c::26",
+      "kavlan-8": "2001:660:4406:594:c::26",
+      "kavlan-9": "2001:660:4406:595:c::26"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.38",
-      "ip6": "2001:660:4406:500:c:0::26",
+      "ip6": "2001:660:4406:500:c::26",
       "kavlan": true,
       "mac": "84:8f:69:fd:0b:15",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-39.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-39.json
index 102b6a00997bd858302aab89205fc7fcd66c3924..8bcc758ce397539e27bc8fecffbee38f99f34d75 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-39.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-39.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::27",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::27",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::27",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::27",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::27",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::27",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::27",
-      "kavlan-2": "2001:660:4406:581:c:0::27",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::27",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::27",
-      "kavlan-3": "2001:660:4406:582:c:0::27",
-      "kavlan-4": "2001:660:4406:590:c:0::27",
-      "kavlan-5": "2001:660:4406:591:c:0::27",
-      "kavlan-6": "2001:660:4406:592:c:0::27",
-      "kavlan-7": "2001:660:4406:593:c:0::27",
-      "kavlan-8": "2001:660:4406:594:c:0::27",
-      "kavlan-9": "2001:660:4406:595:c:0::27"
+      "kavlan-1": "2001:660:4406:580:c::27",
+      "kavlan-11": "2001:660:4406:1a0:50c::27",
+      "kavlan-12": "2001:660:4406:2a0:50c::27",
+      "kavlan-13": "2001:660:4406:4a0:50c::27",
+      "kavlan-14": "2001:660:4406:5a0:50c::27",
+      "kavlan-16": "2001:660:4406:7a0:50c::27",
+      "kavlan-18": "2001:660:4406:8a0:50c::27",
+      "kavlan-2": "2001:660:4406:581:c::27",
+      "kavlan-20": "2001:660:4406:3a0:50c::27",
+      "kavlan-21": "2001:660:4406:6a0:50c::27",
+      "kavlan-3": "2001:660:4406:582:c::27",
+      "kavlan-4": "2001:660:4406:590:c::27",
+      "kavlan-5": "2001:660:4406:591:c::27",
+      "kavlan-6": "2001:660:4406:592:c::27",
+      "kavlan-7": "2001:660:4406:593:c::27",
+      "kavlan-8": "2001:660:4406:594:c::27",
+      "kavlan-9": "2001:660:4406:595:c::27"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.39",
-      "ip6": "2001:660:4406:500:c:0::27",
+      "ip6": "2001:660:4406:500:c::27",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:a0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-4.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-4.json
index 9c6e60258167abc511ed359a1de4c08ce45036cc..d2d14aaca552e3e110bf9e84756cfd0319ded734 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-4.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::4",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::4",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::4",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::4",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::4",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::4",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::4",
-      "kavlan-2": "2001:660:4406:581:c:0::4",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::4",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::4",
-      "kavlan-3": "2001:660:4406:582:c:0::4",
-      "kavlan-4": "2001:660:4406:590:c:0::4",
-      "kavlan-5": "2001:660:4406:591:c:0::4",
-      "kavlan-6": "2001:660:4406:592:c:0::4",
-      "kavlan-7": "2001:660:4406:593:c:0::4",
-      "kavlan-8": "2001:660:4406:594:c:0::4",
-      "kavlan-9": "2001:660:4406:595:c:0::4"
+      "kavlan-1": "2001:660:4406:580:c::4",
+      "kavlan-11": "2001:660:4406:1a0:50c::4",
+      "kavlan-12": "2001:660:4406:2a0:50c::4",
+      "kavlan-13": "2001:660:4406:4a0:50c::4",
+      "kavlan-14": "2001:660:4406:5a0:50c::4",
+      "kavlan-16": "2001:660:4406:7a0:50c::4",
+      "kavlan-18": "2001:660:4406:8a0:50c::4",
+      "kavlan-2": "2001:660:4406:581:c::4",
+      "kavlan-20": "2001:660:4406:3a0:50c::4",
+      "kavlan-21": "2001:660:4406:6a0:50c::4",
+      "kavlan-3": "2001:660:4406:582:c::4",
+      "kavlan-4": "2001:660:4406:590:c::4",
+      "kavlan-5": "2001:660:4406:591:c::4",
+      "kavlan-6": "2001:660:4406:592:c::4",
+      "kavlan-7": "2001:660:4406:593:c::4",
+      "kavlan-8": "2001:660:4406:594:c::4",
+      "kavlan-9": "2001:660:4406:595:c::4"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.4",
-      "ip6": "2001:660:4406:500:c:0::4",
+      "ip6": "2001:660:4406:500:c::4",
       "kavlan": true,
       "mac": "18:03:73:ff:ce:4b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-40.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-40.json
index 916aece4040e0ac0440edf2af6b012f798685671..25c9c6566a78b06cf29748c527e5fc06911dfce2 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-40.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-40.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::28",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::28",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::28",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::28",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::28",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::28",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::28",
-      "kavlan-2": "2001:660:4406:581:c:0::28",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::28",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::28",
-      "kavlan-3": "2001:660:4406:582:c:0::28",
-      "kavlan-4": "2001:660:4406:590:c:0::28",
-      "kavlan-5": "2001:660:4406:591:c:0::28",
-      "kavlan-6": "2001:660:4406:592:c:0::28",
-      "kavlan-7": "2001:660:4406:593:c:0::28",
-      "kavlan-8": "2001:660:4406:594:c:0::28",
-      "kavlan-9": "2001:660:4406:595:c:0::28"
+      "kavlan-1": "2001:660:4406:580:c::28",
+      "kavlan-11": "2001:660:4406:1a0:50c::28",
+      "kavlan-12": "2001:660:4406:2a0:50c::28",
+      "kavlan-13": "2001:660:4406:4a0:50c::28",
+      "kavlan-14": "2001:660:4406:5a0:50c::28",
+      "kavlan-16": "2001:660:4406:7a0:50c::28",
+      "kavlan-18": "2001:660:4406:8a0:50c::28",
+      "kavlan-2": "2001:660:4406:581:c::28",
+      "kavlan-20": "2001:660:4406:3a0:50c::28",
+      "kavlan-21": "2001:660:4406:6a0:50c::28",
+      "kavlan-3": "2001:660:4406:582:c::28",
+      "kavlan-4": "2001:660:4406:590:c::28",
+      "kavlan-5": "2001:660:4406:591:c::28",
+      "kavlan-6": "2001:660:4406:592:c::28",
+      "kavlan-7": "2001:660:4406:593:c::28",
+      "kavlan-8": "2001:660:4406:594:c::28",
+      "kavlan-9": "2001:660:4406:595:c::28"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.40",
-      "ip6": "2001:660:4406:500:c:0::28",
+      "ip6": "2001:660:4406:500:c::28",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:d0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-41.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-41.json
index 10f3190fde2733918ba551e8bbecbeef03d8996b..04fa3cc9450d491e7ad40a8dee5ba5b3c3d49882 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-41.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-41.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::29",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::29",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::29",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::29",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::29",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::29",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::29",
-      "kavlan-2": "2001:660:4406:581:c:0::29",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::29",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::29",
-      "kavlan-3": "2001:660:4406:582:c:0::29",
-      "kavlan-4": "2001:660:4406:590:c:0::29",
-      "kavlan-5": "2001:660:4406:591:c:0::29",
-      "kavlan-6": "2001:660:4406:592:c:0::29",
-      "kavlan-7": "2001:660:4406:593:c:0::29",
-      "kavlan-8": "2001:660:4406:594:c:0::29",
-      "kavlan-9": "2001:660:4406:595:c:0::29"
+      "kavlan-1": "2001:660:4406:580:c::29",
+      "kavlan-11": "2001:660:4406:1a0:50c::29",
+      "kavlan-12": "2001:660:4406:2a0:50c::29",
+      "kavlan-13": "2001:660:4406:4a0:50c::29",
+      "kavlan-14": "2001:660:4406:5a0:50c::29",
+      "kavlan-16": "2001:660:4406:7a0:50c::29",
+      "kavlan-18": "2001:660:4406:8a0:50c::29",
+      "kavlan-2": "2001:660:4406:581:c::29",
+      "kavlan-20": "2001:660:4406:3a0:50c::29",
+      "kavlan-21": "2001:660:4406:6a0:50c::29",
+      "kavlan-3": "2001:660:4406:582:c::29",
+      "kavlan-4": "2001:660:4406:590:c::29",
+      "kavlan-5": "2001:660:4406:591:c::29",
+      "kavlan-6": "2001:660:4406:592:c::29",
+      "kavlan-7": "2001:660:4406:593:c::29",
+      "kavlan-8": "2001:660:4406:594:c::29",
+      "kavlan-9": "2001:660:4406:595:c::29"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.41",
-      "ip6": "2001:660:4406:500:c:0::29",
+      "ip6": "2001:660:4406:500:c::29",
       "kavlan": true,
       "mac": "78:45:c4:fc:3b:09",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-42.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-42.json
index 0ac998bfea30b49f3670b4a8523de603de5634fa..831b41c382e6c848959dce3190e255c37fc226bd 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-42.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-42.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::2a",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::2a",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::2a",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::2a",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::2a",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::2a",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::2a",
-      "kavlan-2": "2001:660:4406:581:c:0::2a",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::2a",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::2a",
-      "kavlan-3": "2001:660:4406:582:c:0::2a",
-      "kavlan-4": "2001:660:4406:590:c:0::2a",
-      "kavlan-5": "2001:660:4406:591:c:0::2a",
-      "kavlan-6": "2001:660:4406:592:c:0::2a",
-      "kavlan-7": "2001:660:4406:593:c:0::2a",
-      "kavlan-8": "2001:660:4406:594:c:0::2a",
-      "kavlan-9": "2001:660:4406:595:c:0::2a"
+      "kavlan-1": "2001:660:4406:580:c::2a",
+      "kavlan-11": "2001:660:4406:1a0:50c::2a",
+      "kavlan-12": "2001:660:4406:2a0:50c::2a",
+      "kavlan-13": "2001:660:4406:4a0:50c::2a",
+      "kavlan-14": "2001:660:4406:5a0:50c::2a",
+      "kavlan-16": "2001:660:4406:7a0:50c::2a",
+      "kavlan-18": "2001:660:4406:8a0:50c::2a",
+      "kavlan-2": "2001:660:4406:581:c::2a",
+      "kavlan-20": "2001:660:4406:3a0:50c::2a",
+      "kavlan-21": "2001:660:4406:6a0:50c::2a",
+      "kavlan-3": "2001:660:4406:582:c::2a",
+      "kavlan-4": "2001:660:4406:590:c::2a",
+      "kavlan-5": "2001:660:4406:591:c::2a",
+      "kavlan-6": "2001:660:4406:592:c::2a",
+      "kavlan-7": "2001:660:4406:593:c::2a",
+      "kavlan-8": "2001:660:4406:594:c::2a",
+      "kavlan-9": "2001:660:4406:595:c::2a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.42",
-      "ip6": "2001:660:4406:500:c:0::2a",
+      "ip6": "2001:660:4406:500:c::2a",
       "kavlan": true,
       "mac": "78:45:c4:fc:3b:03",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-43.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-43.json
index 95d069a4f0279d6c1261bdc1770154ec91a1cac6..7871a27dde7e4f231a9614b7e6b223f52f24dfe8 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-43.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-43.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::2b",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::2b",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::2b",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::2b",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::2b",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::2b",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::2b",
-      "kavlan-2": "2001:660:4406:581:c:0::2b",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::2b",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::2b",
-      "kavlan-3": "2001:660:4406:582:c:0::2b",
-      "kavlan-4": "2001:660:4406:590:c:0::2b",
-      "kavlan-5": "2001:660:4406:591:c:0::2b",
-      "kavlan-6": "2001:660:4406:592:c:0::2b",
-      "kavlan-7": "2001:660:4406:593:c:0::2b",
-      "kavlan-8": "2001:660:4406:594:c:0::2b",
-      "kavlan-9": "2001:660:4406:595:c:0::2b"
+      "kavlan-1": "2001:660:4406:580:c::2b",
+      "kavlan-11": "2001:660:4406:1a0:50c::2b",
+      "kavlan-12": "2001:660:4406:2a0:50c::2b",
+      "kavlan-13": "2001:660:4406:4a0:50c::2b",
+      "kavlan-14": "2001:660:4406:5a0:50c::2b",
+      "kavlan-16": "2001:660:4406:7a0:50c::2b",
+      "kavlan-18": "2001:660:4406:8a0:50c::2b",
+      "kavlan-2": "2001:660:4406:581:c::2b",
+      "kavlan-20": "2001:660:4406:3a0:50c::2b",
+      "kavlan-21": "2001:660:4406:6a0:50c::2b",
+      "kavlan-3": "2001:660:4406:582:c::2b",
+      "kavlan-4": "2001:660:4406:590:c::2b",
+      "kavlan-5": "2001:660:4406:591:c::2b",
+      "kavlan-6": "2001:660:4406:592:c::2b",
+      "kavlan-7": "2001:660:4406:593:c::2b",
+      "kavlan-8": "2001:660:4406:594:c::2b",
+      "kavlan-9": "2001:660:4406:595:c::2b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.43",
-      "ip6": "2001:660:4406:500:c:0::2b",
+      "ip6": "2001:660:4406:500:c::2b",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:c7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-44.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-44.json
index 86555be0219c28bcc63e23d6b156f4aaad980ec0..dc8ba16a96a3f6788c4130221209a59051769de0 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-44.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-44.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::2c",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::2c",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::2c",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::2c",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::2c",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::2c",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::2c",
-      "kavlan-2": "2001:660:4406:581:c:0::2c",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::2c",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::2c",
-      "kavlan-3": "2001:660:4406:582:c:0::2c",
-      "kavlan-4": "2001:660:4406:590:c:0::2c",
-      "kavlan-5": "2001:660:4406:591:c:0::2c",
-      "kavlan-6": "2001:660:4406:592:c:0::2c",
-      "kavlan-7": "2001:660:4406:593:c:0::2c",
-      "kavlan-8": "2001:660:4406:594:c:0::2c",
-      "kavlan-9": "2001:660:4406:595:c:0::2c"
+      "kavlan-1": "2001:660:4406:580:c::2c",
+      "kavlan-11": "2001:660:4406:1a0:50c::2c",
+      "kavlan-12": "2001:660:4406:2a0:50c::2c",
+      "kavlan-13": "2001:660:4406:4a0:50c::2c",
+      "kavlan-14": "2001:660:4406:5a0:50c::2c",
+      "kavlan-16": "2001:660:4406:7a0:50c::2c",
+      "kavlan-18": "2001:660:4406:8a0:50c::2c",
+      "kavlan-2": "2001:660:4406:581:c::2c",
+      "kavlan-20": "2001:660:4406:3a0:50c::2c",
+      "kavlan-21": "2001:660:4406:6a0:50c::2c",
+      "kavlan-3": "2001:660:4406:582:c::2c",
+      "kavlan-4": "2001:660:4406:590:c::2c",
+      "kavlan-5": "2001:660:4406:591:c::2c",
+      "kavlan-6": "2001:660:4406:592:c::2c",
+      "kavlan-7": "2001:660:4406:593:c::2c",
+      "kavlan-8": "2001:660:4406:594:c::2c",
+      "kavlan-9": "2001:660:4406:595:c::2c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.44",
-      "ip6": "2001:660:4406:500:c:0::2c",
+      "ip6": "2001:660:4406:500:c::2c",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:e2",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-45.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-45.json
index 53e957e962098cb77ee2c5ad62c4072de3838712..eb254fdcf94f9f9f525de593e82cb29548d0de32 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-45.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-45.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::2d",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::2d",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::2d",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::2d",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::2d",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::2d",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::2d",
-      "kavlan-2": "2001:660:4406:581:c:0::2d",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::2d",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::2d",
-      "kavlan-3": "2001:660:4406:582:c:0::2d",
-      "kavlan-4": "2001:660:4406:590:c:0::2d",
-      "kavlan-5": "2001:660:4406:591:c:0::2d",
-      "kavlan-6": "2001:660:4406:592:c:0::2d",
-      "kavlan-7": "2001:660:4406:593:c:0::2d",
-      "kavlan-8": "2001:660:4406:594:c:0::2d",
-      "kavlan-9": "2001:660:4406:595:c:0::2d"
+      "kavlan-1": "2001:660:4406:580:c::2d",
+      "kavlan-11": "2001:660:4406:1a0:50c::2d",
+      "kavlan-12": "2001:660:4406:2a0:50c::2d",
+      "kavlan-13": "2001:660:4406:4a0:50c::2d",
+      "kavlan-14": "2001:660:4406:5a0:50c::2d",
+      "kavlan-16": "2001:660:4406:7a0:50c::2d",
+      "kavlan-18": "2001:660:4406:8a0:50c::2d",
+      "kavlan-2": "2001:660:4406:581:c::2d",
+      "kavlan-20": "2001:660:4406:3a0:50c::2d",
+      "kavlan-21": "2001:660:4406:6a0:50c::2d",
+      "kavlan-3": "2001:660:4406:582:c::2d",
+      "kavlan-4": "2001:660:4406:590:c::2d",
+      "kavlan-5": "2001:660:4406:591:c::2d",
+      "kavlan-6": "2001:660:4406:592:c::2d",
+      "kavlan-7": "2001:660:4406:593:c::2d",
+      "kavlan-8": "2001:660:4406:594:c::2d",
+      "kavlan-9": "2001:660:4406:595:c::2d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.45",
-      "ip6": "2001:660:4406:500:c:0::2d",
+      "ip6": "2001:660:4406:500:c::2d",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:6a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-46.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-46.json
index 5636c7ded81f4dd2367fef76dc4c761c821cd4a9..4bdaf6a0bf8494d53684a016e712ec3eaa95a1bc 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-46.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-46.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::2e",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::2e",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::2e",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::2e",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::2e",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::2e",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::2e",
-      "kavlan-2": "2001:660:4406:581:c:0::2e",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::2e",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::2e",
-      "kavlan-3": "2001:660:4406:582:c:0::2e",
-      "kavlan-4": "2001:660:4406:590:c:0::2e",
-      "kavlan-5": "2001:660:4406:591:c:0::2e",
-      "kavlan-6": "2001:660:4406:592:c:0::2e",
-      "kavlan-7": "2001:660:4406:593:c:0::2e",
-      "kavlan-8": "2001:660:4406:594:c:0::2e",
-      "kavlan-9": "2001:660:4406:595:c:0::2e"
+      "kavlan-1": "2001:660:4406:580:c::2e",
+      "kavlan-11": "2001:660:4406:1a0:50c::2e",
+      "kavlan-12": "2001:660:4406:2a0:50c::2e",
+      "kavlan-13": "2001:660:4406:4a0:50c::2e",
+      "kavlan-14": "2001:660:4406:5a0:50c::2e",
+      "kavlan-16": "2001:660:4406:7a0:50c::2e",
+      "kavlan-18": "2001:660:4406:8a0:50c::2e",
+      "kavlan-2": "2001:660:4406:581:c::2e",
+      "kavlan-20": "2001:660:4406:3a0:50c::2e",
+      "kavlan-21": "2001:660:4406:6a0:50c::2e",
+      "kavlan-3": "2001:660:4406:582:c::2e",
+      "kavlan-4": "2001:660:4406:590:c::2e",
+      "kavlan-5": "2001:660:4406:591:c::2e",
+      "kavlan-6": "2001:660:4406:592:c::2e",
+      "kavlan-7": "2001:660:4406:593:c::2e",
+      "kavlan-8": "2001:660:4406:594:c::2e",
+      "kavlan-9": "2001:660:4406:595:c::2e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.46",
-      "ip6": "2001:660:4406:500:c:0::2e",
+      "ip6": "2001:660:4406:500:c::2e",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:49",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-47.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-47.json
index c8b1ab81868986b9fde782c9d2eb678d859ed24a..85c2a11710baff4b360320b612d7fe2adcf859f9 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-47.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-47.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::2f",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::2f",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::2f",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::2f",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::2f",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::2f",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::2f",
-      "kavlan-2": "2001:660:4406:581:c:0::2f",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::2f",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::2f",
-      "kavlan-3": "2001:660:4406:582:c:0::2f",
-      "kavlan-4": "2001:660:4406:590:c:0::2f",
-      "kavlan-5": "2001:660:4406:591:c:0::2f",
-      "kavlan-6": "2001:660:4406:592:c:0::2f",
-      "kavlan-7": "2001:660:4406:593:c:0::2f",
-      "kavlan-8": "2001:660:4406:594:c:0::2f",
-      "kavlan-9": "2001:660:4406:595:c:0::2f"
+      "kavlan-1": "2001:660:4406:580:c::2f",
+      "kavlan-11": "2001:660:4406:1a0:50c::2f",
+      "kavlan-12": "2001:660:4406:2a0:50c::2f",
+      "kavlan-13": "2001:660:4406:4a0:50c::2f",
+      "kavlan-14": "2001:660:4406:5a0:50c::2f",
+      "kavlan-16": "2001:660:4406:7a0:50c::2f",
+      "kavlan-18": "2001:660:4406:8a0:50c::2f",
+      "kavlan-2": "2001:660:4406:581:c::2f",
+      "kavlan-20": "2001:660:4406:3a0:50c::2f",
+      "kavlan-21": "2001:660:4406:6a0:50c::2f",
+      "kavlan-3": "2001:660:4406:582:c::2f",
+      "kavlan-4": "2001:660:4406:590:c::2f",
+      "kavlan-5": "2001:660:4406:591:c::2f",
+      "kavlan-6": "2001:660:4406:592:c::2f",
+      "kavlan-7": "2001:660:4406:593:c::2f",
+      "kavlan-8": "2001:660:4406:594:c::2f",
+      "kavlan-9": "2001:660:4406:595:c::2f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.47",
-      "ip6": "2001:660:4406:500:c:0::2f",
+      "ip6": "2001:660:4406:500:c::2f",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:34",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-5.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-5.json
index 4a78334df4ea59f7430de577c396d6ede58fcbfa..3cd09d5bd347ec9f60e3969e5452ae54afa232f4 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-5.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::5",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::5",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::5",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::5",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::5",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::5",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::5",
-      "kavlan-2": "2001:660:4406:581:c:0::5",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::5",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::5",
-      "kavlan-3": "2001:660:4406:582:c:0::5",
-      "kavlan-4": "2001:660:4406:590:c:0::5",
-      "kavlan-5": "2001:660:4406:591:c:0::5",
-      "kavlan-6": "2001:660:4406:592:c:0::5",
-      "kavlan-7": "2001:660:4406:593:c:0::5",
-      "kavlan-8": "2001:660:4406:594:c:0::5",
-      "kavlan-9": "2001:660:4406:595:c:0::5"
+      "kavlan-1": "2001:660:4406:580:c::5",
+      "kavlan-11": "2001:660:4406:1a0:50c::5",
+      "kavlan-12": "2001:660:4406:2a0:50c::5",
+      "kavlan-13": "2001:660:4406:4a0:50c::5",
+      "kavlan-14": "2001:660:4406:5a0:50c::5",
+      "kavlan-16": "2001:660:4406:7a0:50c::5",
+      "kavlan-18": "2001:660:4406:8a0:50c::5",
+      "kavlan-2": "2001:660:4406:581:c::5",
+      "kavlan-20": "2001:660:4406:3a0:50c::5",
+      "kavlan-21": "2001:660:4406:6a0:50c::5",
+      "kavlan-3": "2001:660:4406:582:c::5",
+      "kavlan-4": "2001:660:4406:590:c::5",
+      "kavlan-5": "2001:660:4406:591:c::5",
+      "kavlan-6": "2001:660:4406:592:c::5",
+      "kavlan-7": "2001:660:4406:593:c::5",
+      "kavlan-8": "2001:660:4406:594:c::5",
+      "kavlan-9": "2001:660:4406:595:c::5"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.5",
-      "ip6": "2001:660:4406:500:c:0::5",
+      "ip6": "2001:660:4406:500:c::5",
       "kavlan": true,
       "mac": "78:45:c4:fc:39:53",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-6.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-6.json
index f6458f45e6c2985bc4694d930aa5f20fc24a6ac9..8cbb0cc83ada76b1bdb4084dbbd96c83ea46b8ae 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-6.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::6",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::6",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::6",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::6",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::6",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::6",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::6",
-      "kavlan-2": "2001:660:4406:581:c:0::6",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::6",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::6",
-      "kavlan-3": "2001:660:4406:582:c:0::6",
-      "kavlan-4": "2001:660:4406:590:c:0::6",
-      "kavlan-5": "2001:660:4406:591:c:0::6",
-      "kavlan-6": "2001:660:4406:592:c:0::6",
-      "kavlan-7": "2001:660:4406:593:c:0::6",
-      "kavlan-8": "2001:660:4406:594:c:0::6",
-      "kavlan-9": "2001:660:4406:595:c:0::6"
+      "kavlan-1": "2001:660:4406:580:c::6",
+      "kavlan-11": "2001:660:4406:1a0:50c::6",
+      "kavlan-12": "2001:660:4406:2a0:50c::6",
+      "kavlan-13": "2001:660:4406:4a0:50c::6",
+      "kavlan-14": "2001:660:4406:5a0:50c::6",
+      "kavlan-16": "2001:660:4406:7a0:50c::6",
+      "kavlan-18": "2001:660:4406:8a0:50c::6",
+      "kavlan-2": "2001:660:4406:581:c::6",
+      "kavlan-20": "2001:660:4406:3a0:50c::6",
+      "kavlan-21": "2001:660:4406:6a0:50c::6",
+      "kavlan-3": "2001:660:4406:582:c::6",
+      "kavlan-4": "2001:660:4406:590:c::6",
+      "kavlan-5": "2001:660:4406:591:c::6",
+      "kavlan-6": "2001:660:4406:592:c::6",
+      "kavlan-7": "2001:660:4406:593:c::6",
+      "kavlan-8": "2001:660:4406:594:c::6",
+      "kavlan-9": "2001:660:4406:595:c::6"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.6",
-      "ip6": "2001:660:4406:500:c:0::6",
+      "ip6": "2001:660:4406:500:c::6",
       "kavlan": true,
       "mac": "78:45:c4:fc:39:e6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-7.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-7.json
index 99c97a0dd7370b37db883b39b9ff7ed24539cd74..82e0a7da89901c257e061d97a20aef8e378cfa98 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-7.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::7",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::7",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::7",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::7",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::7",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::7",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::7",
-      "kavlan-2": "2001:660:4406:581:c:0::7",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::7",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::7",
-      "kavlan-3": "2001:660:4406:582:c:0::7",
-      "kavlan-4": "2001:660:4406:590:c:0::7",
-      "kavlan-5": "2001:660:4406:591:c:0::7",
-      "kavlan-6": "2001:660:4406:592:c:0::7",
-      "kavlan-7": "2001:660:4406:593:c:0::7",
-      "kavlan-8": "2001:660:4406:594:c:0::7",
-      "kavlan-9": "2001:660:4406:595:c:0::7"
+      "kavlan-1": "2001:660:4406:580:c::7",
+      "kavlan-11": "2001:660:4406:1a0:50c::7",
+      "kavlan-12": "2001:660:4406:2a0:50c::7",
+      "kavlan-13": "2001:660:4406:4a0:50c::7",
+      "kavlan-14": "2001:660:4406:5a0:50c::7",
+      "kavlan-16": "2001:660:4406:7a0:50c::7",
+      "kavlan-18": "2001:660:4406:8a0:50c::7",
+      "kavlan-2": "2001:660:4406:581:c::7",
+      "kavlan-20": "2001:660:4406:3a0:50c::7",
+      "kavlan-21": "2001:660:4406:6a0:50c::7",
+      "kavlan-3": "2001:660:4406:582:c::7",
+      "kavlan-4": "2001:660:4406:590:c::7",
+      "kavlan-5": "2001:660:4406:591:c::7",
+      "kavlan-6": "2001:660:4406:592:c::7",
+      "kavlan-7": "2001:660:4406:593:c::7",
+      "kavlan-8": "2001:660:4406:594:c::7",
+      "kavlan-9": "2001:660:4406:595:c::7"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.7",
-      "ip6": "2001:660:4406:500:c:0::7",
+      "ip6": "2001:660:4406:500:c::7",
       "kavlan": true,
       "mac": "78:45:c4:fc:39:ce",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-8.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-8.json
index 4ebdb49ba15589ba7d9ff067ac35cd8fdcb90e5f..79b7c4ce6be35f5b8a8b16c5c16f22181ed0b75e 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-8.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::8",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::8",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::8",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::8",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::8",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::8",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::8",
-      "kavlan-2": "2001:660:4406:581:c:0::8",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::8",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::8",
-      "kavlan-3": "2001:660:4406:582:c:0::8",
-      "kavlan-4": "2001:660:4406:590:c:0::8",
-      "kavlan-5": "2001:660:4406:591:c:0::8",
-      "kavlan-6": "2001:660:4406:592:c:0::8",
-      "kavlan-7": "2001:660:4406:593:c:0::8",
-      "kavlan-8": "2001:660:4406:594:c:0::8",
-      "kavlan-9": "2001:660:4406:595:c:0::8"
+      "kavlan-1": "2001:660:4406:580:c::8",
+      "kavlan-11": "2001:660:4406:1a0:50c::8",
+      "kavlan-12": "2001:660:4406:2a0:50c::8",
+      "kavlan-13": "2001:660:4406:4a0:50c::8",
+      "kavlan-14": "2001:660:4406:5a0:50c::8",
+      "kavlan-16": "2001:660:4406:7a0:50c::8",
+      "kavlan-18": "2001:660:4406:8a0:50c::8",
+      "kavlan-2": "2001:660:4406:581:c::8",
+      "kavlan-20": "2001:660:4406:3a0:50c::8",
+      "kavlan-21": "2001:660:4406:6a0:50c::8",
+      "kavlan-3": "2001:660:4406:582:c::8",
+      "kavlan-4": "2001:660:4406:590:c::8",
+      "kavlan-5": "2001:660:4406:591:c::8",
+      "kavlan-6": "2001:660:4406:592:c::8",
+      "kavlan-7": "2001:660:4406:593:c::8",
+      "kavlan-8": "2001:660:4406:594:c::8",
+      "kavlan-9": "2001:660:4406:595:c::8"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.8",
-      "ip6": "2001:660:4406:500:c:0::8",
+      "ip6": "2001:660:4406:500:c::8",
       "kavlan": true,
       "mac": "78:45:c4:fc:39:4a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-9.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-9.json
index e8bf63b35923cf1b3f74c13a4b54eb7da9842cf4..dc671241159f364be0071aa0c240a4ab0cb174de 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-9.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c:0::9",
-      "kavlan-11": "2001:660:4406:1a0:50c:0::9",
-      "kavlan-12": "2001:660:4406:2a0:50c:0::9",
-      "kavlan-13": "2001:660:4406:4a0:50c:0::9",
-      "kavlan-14": "2001:660:4406:5a0:50c:0::9",
-      "kavlan-16": "2001:660:4406:7a0:50c:0::9",
-      "kavlan-18": "2001:660:4406:8a0:50c:0::9",
-      "kavlan-2": "2001:660:4406:581:c:0::9",
-      "kavlan-20": "2001:660:4406:3a0:50c:0::9",
-      "kavlan-21": "2001:660:4406:6a0:50c:0::9",
-      "kavlan-3": "2001:660:4406:582:c:0::9",
-      "kavlan-4": "2001:660:4406:590:c:0::9",
-      "kavlan-5": "2001:660:4406:591:c:0::9",
-      "kavlan-6": "2001:660:4406:592:c:0::9",
-      "kavlan-7": "2001:660:4406:593:c:0::9",
-      "kavlan-8": "2001:660:4406:594:c:0::9",
-      "kavlan-9": "2001:660:4406:595:c:0::9"
+      "kavlan-1": "2001:660:4406:580:c::9",
+      "kavlan-11": "2001:660:4406:1a0:50c::9",
+      "kavlan-12": "2001:660:4406:2a0:50c::9",
+      "kavlan-13": "2001:660:4406:4a0:50c::9",
+      "kavlan-14": "2001:660:4406:5a0:50c::9",
+      "kavlan-16": "2001:660:4406:7a0:50c::9",
+      "kavlan-18": "2001:660:4406:8a0:50c::9",
+      "kavlan-2": "2001:660:4406:581:c::9",
+      "kavlan-20": "2001:660:4406:3a0:50c::9",
+      "kavlan-21": "2001:660:4406:6a0:50c::9",
+      "kavlan-3": "2001:660:4406:582:c::9",
+      "kavlan-4": "2001:660:4406:590:c::9",
+      "kavlan-5": "2001:660:4406:591:c::9",
+      "kavlan-6": "2001:660:4406:592:c::9",
+      "kavlan-7": "2001:660:4406:593:c::9",
+      "kavlan-8": "2001:660:4406:594:c::9",
+      "kavlan-9": "2001:660:4406:595:c::9"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.9",
-      "ip6": "2001:660:4406:500:c:0::9",
+      "ip6": "2001:660:4406:500:c::9",
       "kavlan": true,
       "mac": "84:8f:69:fd:27:09",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-1.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-1.json
index 0e0b294f53b2d7597966bf63b766f2cb796f8823..c8c55e70c378715c6a9d9c8671d123fb473e5011 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-1.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-1.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b:0::1",
-      "kavlan-11": "2001:660:4406:1a0:50b:0::1",
-      "kavlan-12": "2001:660:4406:2a0:50b:0::1",
-      "kavlan-13": "2001:660:4406:4a0:50b:0::1",
-      "kavlan-14": "2001:660:4406:5a0:50b:0::1",
-      "kavlan-16": "2001:660:4406:7a0:50b:0::1",
-      "kavlan-18": "2001:660:4406:8a0:50b:0::1",
-      "kavlan-2": "2001:660:4406:581:b:0::1",
-      "kavlan-20": "2001:660:4406:3a0:50b:0::1",
-      "kavlan-21": "2001:660:4406:6a0:50b:0::1",
-      "kavlan-3": "2001:660:4406:582:b:0::1",
-      "kavlan-4": "2001:660:4406:590:b:0::1",
-      "kavlan-5": "2001:660:4406:591:b:0::1",
-      "kavlan-6": "2001:660:4406:592:b:0::1",
-      "kavlan-7": "2001:660:4406:593:b:0::1",
-      "kavlan-8": "2001:660:4406:594:b:0::1",
-      "kavlan-9": "2001:660:4406:595:b:0::1"
+      "kavlan-1": "2001:660:4406:580:b::1",
+      "kavlan-11": "2001:660:4406:1a0:50b::1",
+      "kavlan-12": "2001:660:4406:2a0:50b::1",
+      "kavlan-13": "2001:660:4406:4a0:50b::1",
+      "kavlan-14": "2001:660:4406:5a0:50b::1",
+      "kavlan-16": "2001:660:4406:7a0:50b::1",
+      "kavlan-18": "2001:660:4406:8a0:50b::1",
+      "kavlan-2": "2001:660:4406:581:b::1",
+      "kavlan-20": "2001:660:4406:3a0:50b::1",
+      "kavlan-21": "2001:660:4406:6a0:50b::1",
+      "kavlan-3": "2001:660:4406:582:b::1",
+      "kavlan-4": "2001:660:4406:590:b::1",
+      "kavlan-5": "2001:660:4406:591:b::1",
+      "kavlan-6": "2001:660:4406:592:b::1",
+      "kavlan-7": "2001:660:4406:593:b::1",
+      "kavlan-8": "2001:660:4406:594:b::1",
+      "kavlan-9": "2001:660:4406:595:b::1"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.1",
-      "ip6": "2001:660:4406:500:b:0::1",
+      "ip6": "2001:660:4406:500:b::1",
       "kavlan": true,
       "mac": "24:6e:96:63:d7:40",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-10.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-10.json
index fd92a90ccefe19c118545d2467043cec571e826a..d4cc3198a31687feabae55bb5a3480e5290e5c54 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-10.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-10.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b:0::a",
-      "kavlan-11": "2001:660:4406:1a0:50b:0::a",
-      "kavlan-12": "2001:660:4406:2a0:50b:0::a",
-      "kavlan-13": "2001:660:4406:4a0:50b:0::a",
-      "kavlan-14": "2001:660:4406:5a0:50b:0::a",
-      "kavlan-16": "2001:660:4406:7a0:50b:0::a",
-      "kavlan-18": "2001:660:4406:8a0:50b:0::a",
-      "kavlan-2": "2001:660:4406:581:b:0::a",
-      "kavlan-20": "2001:660:4406:3a0:50b:0::a",
-      "kavlan-21": "2001:660:4406:6a0:50b:0::a",
-      "kavlan-3": "2001:660:4406:582:b:0::a",
-      "kavlan-4": "2001:660:4406:590:b:0::a",
-      "kavlan-5": "2001:660:4406:591:b:0::a",
-      "kavlan-6": "2001:660:4406:592:b:0::a",
-      "kavlan-7": "2001:660:4406:593:b:0::a",
-      "kavlan-8": "2001:660:4406:594:b:0::a",
-      "kavlan-9": "2001:660:4406:595:b:0::a"
+      "kavlan-1": "2001:660:4406:580:b::a",
+      "kavlan-11": "2001:660:4406:1a0:50b::a",
+      "kavlan-12": "2001:660:4406:2a0:50b::a",
+      "kavlan-13": "2001:660:4406:4a0:50b::a",
+      "kavlan-14": "2001:660:4406:5a0:50b::a",
+      "kavlan-16": "2001:660:4406:7a0:50b::a",
+      "kavlan-18": "2001:660:4406:8a0:50b::a",
+      "kavlan-2": "2001:660:4406:581:b::a",
+      "kavlan-20": "2001:660:4406:3a0:50b::a",
+      "kavlan-21": "2001:660:4406:6a0:50b::a",
+      "kavlan-3": "2001:660:4406:582:b::a",
+      "kavlan-4": "2001:660:4406:590:b::a",
+      "kavlan-5": "2001:660:4406:591:b::a",
+      "kavlan-6": "2001:660:4406:592:b::a",
+      "kavlan-7": "2001:660:4406:593:b::a",
+      "kavlan-8": "2001:660:4406:594:b::a",
+      "kavlan-9": "2001:660:4406:595:b::a"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.10",
-      "ip6": "2001:660:4406:500:b:0::a",
+      "ip6": "2001:660:4406:500:b::a",
       "kavlan": true,
       "mac": "24:6e:96:63:e2:10",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-11.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-11.json
index 3da0bf151a8133818b9b9754783c7d758541fe63..29371f1bd9c0470eb077477c0bbe61c4e92f834b 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-11.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-11.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b:0::b",
-      "kavlan-11": "2001:660:4406:1a0:50b:0::b",
-      "kavlan-12": "2001:660:4406:2a0:50b:0::b",
-      "kavlan-13": "2001:660:4406:4a0:50b:0::b",
-      "kavlan-14": "2001:660:4406:5a0:50b:0::b",
-      "kavlan-16": "2001:660:4406:7a0:50b:0::b",
-      "kavlan-18": "2001:660:4406:8a0:50b:0::b",
-      "kavlan-2": "2001:660:4406:581:b:0::b",
-      "kavlan-20": "2001:660:4406:3a0:50b:0::b",
-      "kavlan-21": "2001:660:4406:6a0:50b:0::b",
-      "kavlan-3": "2001:660:4406:582:b:0::b",
-      "kavlan-4": "2001:660:4406:590:b:0::b",
-      "kavlan-5": "2001:660:4406:591:b:0::b",
-      "kavlan-6": "2001:660:4406:592:b:0::b",
-      "kavlan-7": "2001:660:4406:593:b:0::b",
-      "kavlan-8": "2001:660:4406:594:b:0::b",
-      "kavlan-9": "2001:660:4406:595:b:0::b"
+      "kavlan-1": "2001:660:4406:580:b::b",
+      "kavlan-11": "2001:660:4406:1a0:50b::b",
+      "kavlan-12": "2001:660:4406:2a0:50b::b",
+      "kavlan-13": "2001:660:4406:4a0:50b::b",
+      "kavlan-14": "2001:660:4406:5a0:50b::b",
+      "kavlan-16": "2001:660:4406:7a0:50b::b",
+      "kavlan-18": "2001:660:4406:8a0:50b::b",
+      "kavlan-2": "2001:660:4406:581:b::b",
+      "kavlan-20": "2001:660:4406:3a0:50b::b",
+      "kavlan-21": "2001:660:4406:6a0:50b::b",
+      "kavlan-3": "2001:660:4406:582:b::b",
+      "kavlan-4": "2001:660:4406:590:b::b",
+      "kavlan-5": "2001:660:4406:591:b::b",
+      "kavlan-6": "2001:660:4406:592:b::b",
+      "kavlan-7": "2001:660:4406:593:b::b",
+      "kavlan-8": "2001:660:4406:594:b::b",
+      "kavlan-9": "2001:660:4406:595:b::b"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.11",
-      "ip6": "2001:660:4406:500:b:0::b",
+      "ip6": "2001:660:4406:500:b::b",
       "kavlan": true,
       "mac": "24:6e:96:63:73:70",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-12.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-12.json
index 7e4c4e39fbf4de33452943863a424a215909c970..fe261c59a2ed969e2bcca58642064ded98d3a287 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-12.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-12.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b:0::c",
-      "kavlan-11": "2001:660:4406:1a0:50b:0::c",
-      "kavlan-12": "2001:660:4406:2a0:50b:0::c",
-      "kavlan-13": "2001:660:4406:4a0:50b:0::c",
-      "kavlan-14": "2001:660:4406:5a0:50b:0::c",
-      "kavlan-16": "2001:660:4406:7a0:50b:0::c",
-      "kavlan-18": "2001:660:4406:8a0:50b:0::c",
-      "kavlan-2": "2001:660:4406:581:b:0::c",
-      "kavlan-20": "2001:660:4406:3a0:50b:0::c",
-      "kavlan-21": "2001:660:4406:6a0:50b:0::c",
-      "kavlan-3": "2001:660:4406:582:b:0::c",
-      "kavlan-4": "2001:660:4406:590:b:0::c",
-      "kavlan-5": "2001:660:4406:591:b:0::c",
-      "kavlan-6": "2001:660:4406:592:b:0::c",
-      "kavlan-7": "2001:660:4406:593:b:0::c",
-      "kavlan-8": "2001:660:4406:594:b:0::c",
-      "kavlan-9": "2001:660:4406:595:b:0::c"
+      "kavlan-1": "2001:660:4406:580:b::c",
+      "kavlan-11": "2001:660:4406:1a0:50b::c",
+      "kavlan-12": "2001:660:4406:2a0:50b::c",
+      "kavlan-13": "2001:660:4406:4a0:50b::c",
+      "kavlan-14": "2001:660:4406:5a0:50b::c",
+      "kavlan-16": "2001:660:4406:7a0:50b::c",
+      "kavlan-18": "2001:660:4406:8a0:50b::c",
+      "kavlan-2": "2001:660:4406:581:b::c",
+      "kavlan-20": "2001:660:4406:3a0:50b::c",
+      "kavlan-21": "2001:660:4406:6a0:50b::c",
+      "kavlan-3": "2001:660:4406:582:b::c",
+      "kavlan-4": "2001:660:4406:590:b::c",
+      "kavlan-5": "2001:660:4406:591:b::c",
+      "kavlan-6": "2001:660:4406:592:b::c",
+      "kavlan-7": "2001:660:4406:593:b::c",
+      "kavlan-8": "2001:660:4406:594:b::c",
+      "kavlan-9": "2001:660:4406:595:b::c"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.12",
-      "ip6": "2001:660:4406:500:b:0::c",
+      "ip6": "2001:660:4406:500:b::c",
       "kavlan": true,
       "mac": "24:6e:96:63:d7:58",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-13.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-13.json
index 62a612030b93693d82e75b3188d82592eca36f28..22f58004deaaa6cde0af1033fd009e7e67a1d29b 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-13.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-13.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b:0::d",
-      "kavlan-11": "2001:660:4406:1a0:50b:0::d",
-      "kavlan-12": "2001:660:4406:2a0:50b:0::d",
-      "kavlan-13": "2001:660:4406:4a0:50b:0::d",
-      "kavlan-14": "2001:660:4406:5a0:50b:0::d",
-      "kavlan-16": "2001:660:4406:7a0:50b:0::d",
-      "kavlan-18": "2001:660:4406:8a0:50b:0::d",
-      "kavlan-2": "2001:660:4406:581:b:0::d",
-      "kavlan-20": "2001:660:4406:3a0:50b:0::d",
-      "kavlan-21": "2001:660:4406:6a0:50b:0::d",
-      "kavlan-3": "2001:660:4406:582:b:0::d",
-      "kavlan-4": "2001:660:4406:590:b:0::d",
-      "kavlan-5": "2001:660:4406:591:b:0::d",
-      "kavlan-6": "2001:660:4406:592:b:0::d",
-      "kavlan-7": "2001:660:4406:593:b:0::d",
-      "kavlan-8": "2001:660:4406:594:b:0::d",
-      "kavlan-9": "2001:660:4406:595:b:0::d"
+      "kavlan-1": "2001:660:4406:580:b::d",
+      "kavlan-11": "2001:660:4406:1a0:50b::d",
+      "kavlan-12": "2001:660:4406:2a0:50b::d",
+      "kavlan-13": "2001:660:4406:4a0:50b::d",
+      "kavlan-14": "2001:660:4406:5a0:50b::d",
+      "kavlan-16": "2001:660:4406:7a0:50b::d",
+      "kavlan-18": "2001:660:4406:8a0:50b::d",
+      "kavlan-2": "2001:660:4406:581:b::d",
+      "kavlan-20": "2001:660:4406:3a0:50b::d",
+      "kavlan-21": "2001:660:4406:6a0:50b::d",
+      "kavlan-3": "2001:660:4406:582:b::d",
+      "kavlan-4": "2001:660:4406:590:b::d",
+      "kavlan-5": "2001:660:4406:591:b::d",
+      "kavlan-6": "2001:660:4406:592:b::d",
+      "kavlan-7": "2001:660:4406:593:b::d",
+      "kavlan-8": "2001:660:4406:594:b::d",
+      "kavlan-9": "2001:660:4406:595:b::d"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.13",
-      "ip6": "2001:660:4406:500:b:0::d",
+      "ip6": "2001:660:4406:500:b::d",
       "kavlan": true,
       "mac": "24:6e:96:63:de:b0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-14.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-14.json
index 05725715a194cfbba13f1eaebbbf7c5ec6a39a40..1365a7ca61e55b3dcac65f9c93fca770ecfb8609 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-14.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-14.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b:0::e",
-      "kavlan-11": "2001:660:4406:1a0:50b:0::e",
-      "kavlan-12": "2001:660:4406:2a0:50b:0::e",
-      "kavlan-13": "2001:660:4406:4a0:50b:0::e",
-      "kavlan-14": "2001:660:4406:5a0:50b:0::e",
-      "kavlan-16": "2001:660:4406:7a0:50b:0::e",
-      "kavlan-18": "2001:660:4406:8a0:50b:0::e",
-      "kavlan-2": "2001:660:4406:581:b:0::e",
-      "kavlan-20": "2001:660:4406:3a0:50b:0::e",
-      "kavlan-21": "2001:660:4406:6a0:50b:0::e",
-      "kavlan-3": "2001:660:4406:582:b:0::e",
-      "kavlan-4": "2001:660:4406:590:b:0::e",
-      "kavlan-5": "2001:660:4406:591:b:0::e",
-      "kavlan-6": "2001:660:4406:592:b:0::e",
-      "kavlan-7": "2001:660:4406:593:b:0::e",
-      "kavlan-8": "2001:660:4406:594:b:0::e",
-      "kavlan-9": "2001:660:4406:595:b:0::e"
+      "kavlan-1": "2001:660:4406:580:b::e",
+      "kavlan-11": "2001:660:4406:1a0:50b::e",
+      "kavlan-12": "2001:660:4406:2a0:50b::e",
+      "kavlan-13": "2001:660:4406:4a0:50b::e",
+      "kavlan-14": "2001:660:4406:5a0:50b::e",
+      "kavlan-16": "2001:660:4406:7a0:50b::e",
+      "kavlan-18": "2001:660:4406:8a0:50b::e",
+      "kavlan-2": "2001:660:4406:581:b::e",
+      "kavlan-20": "2001:660:4406:3a0:50b::e",
+      "kavlan-21": "2001:660:4406:6a0:50b::e",
+      "kavlan-3": "2001:660:4406:582:b::e",
+      "kavlan-4": "2001:660:4406:590:b::e",
+      "kavlan-5": "2001:660:4406:591:b::e",
+      "kavlan-6": "2001:660:4406:592:b::e",
+      "kavlan-7": "2001:660:4406:593:b::e",
+      "kavlan-8": "2001:660:4406:594:b::e",
+      "kavlan-9": "2001:660:4406:595:b::e"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.14",
-      "ip6": "2001:660:4406:500:b:0::e",
+      "ip6": "2001:660:4406:500:b::e",
       "kavlan": true,
       "mac": "24:6e:96:63:dd:f0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-2.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-2.json
index da3235f707408810eaf13b865f9b09de3d39b722..57e341994906c112f233d29b807ea2d5b8ee0ccd 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-2.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-2.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b:0::2",
-      "kavlan-11": "2001:660:4406:1a0:50b:0::2",
-      "kavlan-12": "2001:660:4406:2a0:50b:0::2",
-      "kavlan-13": "2001:660:4406:4a0:50b:0::2",
-      "kavlan-14": "2001:660:4406:5a0:50b:0::2",
-      "kavlan-16": "2001:660:4406:7a0:50b:0::2",
-      "kavlan-18": "2001:660:4406:8a0:50b:0::2",
-      "kavlan-2": "2001:660:4406:581:b:0::2",
-      "kavlan-20": "2001:660:4406:3a0:50b:0::2",
-      "kavlan-21": "2001:660:4406:6a0:50b:0::2",
-      "kavlan-3": "2001:660:4406:582:b:0::2",
-      "kavlan-4": "2001:660:4406:590:b:0::2",
-      "kavlan-5": "2001:660:4406:591:b:0::2",
-      "kavlan-6": "2001:660:4406:592:b:0::2",
-      "kavlan-7": "2001:660:4406:593:b:0::2",
-      "kavlan-8": "2001:660:4406:594:b:0::2",
-      "kavlan-9": "2001:660:4406:595:b:0::2"
+      "kavlan-1": "2001:660:4406:580:b::2",
+      "kavlan-11": "2001:660:4406:1a0:50b::2",
+      "kavlan-12": "2001:660:4406:2a0:50b::2",
+      "kavlan-13": "2001:660:4406:4a0:50b::2",
+      "kavlan-14": "2001:660:4406:5a0:50b::2",
+      "kavlan-16": "2001:660:4406:7a0:50b::2",
+      "kavlan-18": "2001:660:4406:8a0:50b::2",
+      "kavlan-2": "2001:660:4406:581:b::2",
+      "kavlan-20": "2001:660:4406:3a0:50b::2",
+      "kavlan-21": "2001:660:4406:6a0:50b::2",
+      "kavlan-3": "2001:660:4406:582:b::2",
+      "kavlan-4": "2001:660:4406:590:b::2",
+      "kavlan-5": "2001:660:4406:591:b::2",
+      "kavlan-6": "2001:660:4406:592:b::2",
+      "kavlan-7": "2001:660:4406:593:b::2",
+      "kavlan-8": "2001:660:4406:594:b::2",
+      "kavlan-9": "2001:660:4406:595:b::2"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.2",
-      "ip6": "2001:660:4406:500:b:0::2",
+      "ip6": "2001:660:4406:500:b::2",
       "kavlan": true,
       "mac": "24:6e:96:63:f1:40",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-3.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-3.json
index 9da2803cb59eecf6b4808eb5a6f5c284269a8922..843b581b262a86131306db540e3e365cb54b8c91 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-3.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-3.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b:0::3",
-      "kavlan-11": "2001:660:4406:1a0:50b:0::3",
-      "kavlan-12": "2001:660:4406:2a0:50b:0::3",
-      "kavlan-13": "2001:660:4406:4a0:50b:0::3",
-      "kavlan-14": "2001:660:4406:5a0:50b:0::3",
-      "kavlan-16": "2001:660:4406:7a0:50b:0::3",
-      "kavlan-18": "2001:660:4406:8a0:50b:0::3",
-      "kavlan-2": "2001:660:4406:581:b:0::3",
-      "kavlan-20": "2001:660:4406:3a0:50b:0::3",
-      "kavlan-21": "2001:660:4406:6a0:50b:0::3",
-      "kavlan-3": "2001:660:4406:582:b:0::3",
-      "kavlan-4": "2001:660:4406:590:b:0::3",
-      "kavlan-5": "2001:660:4406:591:b:0::3",
-      "kavlan-6": "2001:660:4406:592:b:0::3",
-      "kavlan-7": "2001:660:4406:593:b:0::3",
-      "kavlan-8": "2001:660:4406:594:b:0::3",
-      "kavlan-9": "2001:660:4406:595:b:0::3"
+      "kavlan-1": "2001:660:4406:580:b::3",
+      "kavlan-11": "2001:660:4406:1a0:50b::3",
+      "kavlan-12": "2001:660:4406:2a0:50b::3",
+      "kavlan-13": "2001:660:4406:4a0:50b::3",
+      "kavlan-14": "2001:660:4406:5a0:50b::3",
+      "kavlan-16": "2001:660:4406:7a0:50b::3",
+      "kavlan-18": "2001:660:4406:8a0:50b::3",
+      "kavlan-2": "2001:660:4406:581:b::3",
+      "kavlan-20": "2001:660:4406:3a0:50b::3",
+      "kavlan-21": "2001:660:4406:6a0:50b::3",
+      "kavlan-3": "2001:660:4406:582:b::3",
+      "kavlan-4": "2001:660:4406:590:b::3",
+      "kavlan-5": "2001:660:4406:591:b::3",
+      "kavlan-6": "2001:660:4406:592:b::3",
+      "kavlan-7": "2001:660:4406:593:b::3",
+      "kavlan-8": "2001:660:4406:594:b::3",
+      "kavlan-9": "2001:660:4406:595:b::3"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.3",
-      "ip6": "2001:660:4406:500:b:0::3",
+      "ip6": "2001:660:4406:500:b::3",
       "kavlan": true,
       "mac": "24:6e:96:63:de:d8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-4.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-4.json
index a9f1ed5e9bf8b9f96364589b24a5e377e32020ec..8d2fc01b5dcbe8ca7eb5d828d69ea143a41bd108 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-4.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-4.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b:0::4",
-      "kavlan-11": "2001:660:4406:1a0:50b:0::4",
-      "kavlan-12": "2001:660:4406:2a0:50b:0::4",
-      "kavlan-13": "2001:660:4406:4a0:50b:0::4",
-      "kavlan-14": "2001:660:4406:5a0:50b:0::4",
-      "kavlan-16": "2001:660:4406:7a0:50b:0::4",
-      "kavlan-18": "2001:660:4406:8a0:50b:0::4",
-      "kavlan-2": "2001:660:4406:581:b:0::4",
-      "kavlan-20": "2001:660:4406:3a0:50b:0::4",
-      "kavlan-21": "2001:660:4406:6a0:50b:0::4",
-      "kavlan-3": "2001:660:4406:582:b:0::4",
-      "kavlan-4": "2001:660:4406:590:b:0::4",
-      "kavlan-5": "2001:660:4406:591:b:0::4",
-      "kavlan-6": "2001:660:4406:592:b:0::4",
-      "kavlan-7": "2001:660:4406:593:b:0::4",
-      "kavlan-8": "2001:660:4406:594:b:0::4",
-      "kavlan-9": "2001:660:4406:595:b:0::4"
+      "kavlan-1": "2001:660:4406:580:b::4",
+      "kavlan-11": "2001:660:4406:1a0:50b::4",
+      "kavlan-12": "2001:660:4406:2a0:50b::4",
+      "kavlan-13": "2001:660:4406:4a0:50b::4",
+      "kavlan-14": "2001:660:4406:5a0:50b::4",
+      "kavlan-16": "2001:660:4406:7a0:50b::4",
+      "kavlan-18": "2001:660:4406:8a0:50b::4",
+      "kavlan-2": "2001:660:4406:581:b::4",
+      "kavlan-20": "2001:660:4406:3a0:50b::4",
+      "kavlan-21": "2001:660:4406:6a0:50b::4",
+      "kavlan-3": "2001:660:4406:582:b::4",
+      "kavlan-4": "2001:660:4406:590:b::4",
+      "kavlan-5": "2001:660:4406:591:b::4",
+      "kavlan-6": "2001:660:4406:592:b::4",
+      "kavlan-7": "2001:660:4406:593:b::4",
+      "kavlan-8": "2001:660:4406:594:b::4",
+      "kavlan-9": "2001:660:4406:595:b::4"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.4",
-      "ip6": "2001:660:4406:500:b:0::4",
+      "ip6": "2001:660:4406:500:b::4",
       "kavlan": true,
       "mac": "24:6e:96:63:70:c0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-5.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-5.json
index a9310d5847e68c52bf98ab9e52b4b051c97ff221..8593ad98a1743963399c7d186e02dad5279416c9 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-5.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-5.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b:0::5",
-      "kavlan-11": "2001:660:4406:1a0:50b:0::5",
-      "kavlan-12": "2001:660:4406:2a0:50b:0::5",
-      "kavlan-13": "2001:660:4406:4a0:50b:0::5",
-      "kavlan-14": "2001:660:4406:5a0:50b:0::5",
-      "kavlan-16": "2001:660:4406:7a0:50b:0::5",
-      "kavlan-18": "2001:660:4406:8a0:50b:0::5",
-      "kavlan-2": "2001:660:4406:581:b:0::5",
-      "kavlan-20": "2001:660:4406:3a0:50b:0::5",
-      "kavlan-21": "2001:660:4406:6a0:50b:0::5",
-      "kavlan-3": "2001:660:4406:582:b:0::5",
-      "kavlan-4": "2001:660:4406:590:b:0::5",
-      "kavlan-5": "2001:660:4406:591:b:0::5",
-      "kavlan-6": "2001:660:4406:592:b:0::5",
-      "kavlan-7": "2001:660:4406:593:b:0::5",
-      "kavlan-8": "2001:660:4406:594:b:0::5",
-      "kavlan-9": "2001:660:4406:595:b:0::5"
+      "kavlan-1": "2001:660:4406:580:b::5",
+      "kavlan-11": "2001:660:4406:1a0:50b::5",
+      "kavlan-12": "2001:660:4406:2a0:50b::5",
+      "kavlan-13": "2001:660:4406:4a0:50b::5",
+      "kavlan-14": "2001:660:4406:5a0:50b::5",
+      "kavlan-16": "2001:660:4406:7a0:50b::5",
+      "kavlan-18": "2001:660:4406:8a0:50b::5",
+      "kavlan-2": "2001:660:4406:581:b::5",
+      "kavlan-20": "2001:660:4406:3a0:50b::5",
+      "kavlan-21": "2001:660:4406:6a0:50b::5",
+      "kavlan-3": "2001:660:4406:582:b::5",
+      "kavlan-4": "2001:660:4406:590:b::5",
+      "kavlan-5": "2001:660:4406:591:b::5",
+      "kavlan-6": "2001:660:4406:592:b::5",
+      "kavlan-7": "2001:660:4406:593:b::5",
+      "kavlan-8": "2001:660:4406:594:b::5",
+      "kavlan-9": "2001:660:4406:595:b::5"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.5",
-      "ip6": "2001:660:4406:500:b:0::5",
+      "ip6": "2001:660:4406:500:b::5",
       "kavlan": true,
       "mac": "24:6e:96:63:e1:00",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-6.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-6.json
index bb4a50b806a84765d84605ccd312919229e8bf41..427219d4e5c84604f512fc6aaf28d85d734471aa 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-6.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-6.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b:0::6",
-      "kavlan-11": "2001:660:4406:1a0:50b:0::6",
-      "kavlan-12": "2001:660:4406:2a0:50b:0::6",
-      "kavlan-13": "2001:660:4406:4a0:50b:0::6",
-      "kavlan-14": "2001:660:4406:5a0:50b:0::6",
-      "kavlan-16": "2001:660:4406:7a0:50b:0::6",
-      "kavlan-18": "2001:660:4406:8a0:50b:0::6",
-      "kavlan-2": "2001:660:4406:581:b:0::6",
-      "kavlan-20": "2001:660:4406:3a0:50b:0::6",
-      "kavlan-21": "2001:660:4406:6a0:50b:0::6",
-      "kavlan-3": "2001:660:4406:582:b:0::6",
-      "kavlan-4": "2001:660:4406:590:b:0::6",
-      "kavlan-5": "2001:660:4406:591:b:0::6",
-      "kavlan-6": "2001:660:4406:592:b:0::6",
-      "kavlan-7": "2001:660:4406:593:b:0::6",
-      "kavlan-8": "2001:660:4406:594:b:0::6",
-      "kavlan-9": "2001:660:4406:595:b:0::6"
+      "kavlan-1": "2001:660:4406:580:b::6",
+      "kavlan-11": "2001:660:4406:1a0:50b::6",
+      "kavlan-12": "2001:660:4406:2a0:50b::6",
+      "kavlan-13": "2001:660:4406:4a0:50b::6",
+      "kavlan-14": "2001:660:4406:5a0:50b::6",
+      "kavlan-16": "2001:660:4406:7a0:50b::6",
+      "kavlan-18": "2001:660:4406:8a0:50b::6",
+      "kavlan-2": "2001:660:4406:581:b::6",
+      "kavlan-20": "2001:660:4406:3a0:50b::6",
+      "kavlan-21": "2001:660:4406:6a0:50b::6",
+      "kavlan-3": "2001:660:4406:582:b::6",
+      "kavlan-4": "2001:660:4406:590:b::6",
+      "kavlan-5": "2001:660:4406:591:b::6",
+      "kavlan-6": "2001:660:4406:592:b::6",
+      "kavlan-7": "2001:660:4406:593:b::6",
+      "kavlan-8": "2001:660:4406:594:b::6",
+      "kavlan-9": "2001:660:4406:595:b::6"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.6",
-      "ip6": "2001:660:4406:500:b:0::6",
+      "ip6": "2001:660:4406:500:b::6",
       "kavlan": true,
       "mac": "24:6e:96:63:d8:a0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-7.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-7.json
index 598362933c69c16d5c2689cf86ba786f0101cf98..3d1256f1ebac5f87cf3d6661a61371ad0c1594c0 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-7.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-7.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b:0::7",
-      "kavlan-11": "2001:660:4406:1a0:50b:0::7",
-      "kavlan-12": "2001:660:4406:2a0:50b:0::7",
-      "kavlan-13": "2001:660:4406:4a0:50b:0::7",
-      "kavlan-14": "2001:660:4406:5a0:50b:0::7",
-      "kavlan-16": "2001:660:4406:7a0:50b:0::7",
-      "kavlan-18": "2001:660:4406:8a0:50b:0::7",
-      "kavlan-2": "2001:660:4406:581:b:0::7",
-      "kavlan-20": "2001:660:4406:3a0:50b:0::7",
-      "kavlan-21": "2001:660:4406:6a0:50b:0::7",
-      "kavlan-3": "2001:660:4406:582:b:0::7",
-      "kavlan-4": "2001:660:4406:590:b:0::7",
-      "kavlan-5": "2001:660:4406:591:b:0::7",
-      "kavlan-6": "2001:660:4406:592:b:0::7",
-      "kavlan-7": "2001:660:4406:593:b:0::7",
-      "kavlan-8": "2001:660:4406:594:b:0::7",
-      "kavlan-9": "2001:660:4406:595:b:0::7"
+      "kavlan-1": "2001:660:4406:580:b::7",
+      "kavlan-11": "2001:660:4406:1a0:50b::7",
+      "kavlan-12": "2001:660:4406:2a0:50b::7",
+      "kavlan-13": "2001:660:4406:4a0:50b::7",
+      "kavlan-14": "2001:660:4406:5a0:50b::7",
+      "kavlan-16": "2001:660:4406:7a0:50b::7",
+      "kavlan-18": "2001:660:4406:8a0:50b::7",
+      "kavlan-2": "2001:660:4406:581:b::7",
+      "kavlan-20": "2001:660:4406:3a0:50b::7",
+      "kavlan-21": "2001:660:4406:6a0:50b::7",
+      "kavlan-3": "2001:660:4406:582:b::7",
+      "kavlan-4": "2001:660:4406:590:b::7",
+      "kavlan-5": "2001:660:4406:591:b::7",
+      "kavlan-6": "2001:660:4406:592:b::7",
+      "kavlan-7": "2001:660:4406:593:b::7",
+      "kavlan-8": "2001:660:4406:594:b::7",
+      "kavlan-9": "2001:660:4406:595:b::7"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.7",
-      "ip6": "2001:660:4406:500:b:0::7",
+      "ip6": "2001:660:4406:500:b::7",
       "kavlan": true,
       "mac": "24:6e:96:63:ec:00",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-8.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-8.json
index d6d59792b47bf8b9590f3ea0af48726369daddce..8aeeeef25af85768a3ee3d51077563fba2cc57ac 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-8.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-8.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b:0::8",
-      "kavlan-11": "2001:660:4406:1a0:50b:0::8",
-      "kavlan-12": "2001:660:4406:2a0:50b:0::8",
-      "kavlan-13": "2001:660:4406:4a0:50b:0::8",
-      "kavlan-14": "2001:660:4406:5a0:50b:0::8",
-      "kavlan-16": "2001:660:4406:7a0:50b:0::8",
-      "kavlan-18": "2001:660:4406:8a0:50b:0::8",
-      "kavlan-2": "2001:660:4406:581:b:0::8",
-      "kavlan-20": "2001:660:4406:3a0:50b:0::8",
-      "kavlan-21": "2001:660:4406:6a0:50b:0::8",
-      "kavlan-3": "2001:660:4406:582:b:0::8",
-      "kavlan-4": "2001:660:4406:590:b:0::8",
-      "kavlan-5": "2001:660:4406:591:b:0::8",
-      "kavlan-6": "2001:660:4406:592:b:0::8",
-      "kavlan-7": "2001:660:4406:593:b:0::8",
-      "kavlan-8": "2001:660:4406:594:b:0::8",
-      "kavlan-9": "2001:660:4406:595:b:0::8"
+      "kavlan-1": "2001:660:4406:580:b::8",
+      "kavlan-11": "2001:660:4406:1a0:50b::8",
+      "kavlan-12": "2001:660:4406:2a0:50b::8",
+      "kavlan-13": "2001:660:4406:4a0:50b::8",
+      "kavlan-14": "2001:660:4406:5a0:50b::8",
+      "kavlan-16": "2001:660:4406:7a0:50b::8",
+      "kavlan-18": "2001:660:4406:8a0:50b::8",
+      "kavlan-2": "2001:660:4406:581:b::8",
+      "kavlan-20": "2001:660:4406:3a0:50b::8",
+      "kavlan-21": "2001:660:4406:6a0:50b::8",
+      "kavlan-3": "2001:660:4406:582:b::8",
+      "kavlan-4": "2001:660:4406:590:b::8",
+      "kavlan-5": "2001:660:4406:591:b::8",
+      "kavlan-6": "2001:660:4406:592:b::8",
+      "kavlan-7": "2001:660:4406:593:b::8",
+      "kavlan-8": "2001:660:4406:594:b::8",
+      "kavlan-9": "2001:660:4406:595:b::8"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.8",
-      "ip6": "2001:660:4406:500:b:0::8",
+      "ip6": "2001:660:4406:500:b::8",
       "kavlan": true,
       "mac": "24:6e:96:63:d7:10",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-9.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-9.json
index b9318e95f3b40ebe66173a09cf3f1dfbc9b0b5ff..625db7bcbb803853dbf4b8dc1abc9b96848fed5a 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-9.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-9.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b:0::9",
-      "kavlan-11": "2001:660:4406:1a0:50b:0::9",
-      "kavlan-12": "2001:660:4406:2a0:50b:0::9",
-      "kavlan-13": "2001:660:4406:4a0:50b:0::9",
-      "kavlan-14": "2001:660:4406:5a0:50b:0::9",
-      "kavlan-16": "2001:660:4406:7a0:50b:0::9",
-      "kavlan-18": "2001:660:4406:8a0:50b:0::9",
-      "kavlan-2": "2001:660:4406:581:b:0::9",
-      "kavlan-20": "2001:660:4406:3a0:50b:0::9",
-      "kavlan-21": "2001:660:4406:6a0:50b:0::9",
-      "kavlan-3": "2001:660:4406:582:b:0::9",
-      "kavlan-4": "2001:660:4406:590:b:0::9",
-      "kavlan-5": "2001:660:4406:591:b:0::9",
-      "kavlan-6": "2001:660:4406:592:b:0::9",
-      "kavlan-7": "2001:660:4406:593:b:0::9",
-      "kavlan-8": "2001:660:4406:594:b:0::9",
-      "kavlan-9": "2001:660:4406:595:b:0::9"
+      "kavlan-1": "2001:660:4406:580:b::9",
+      "kavlan-11": "2001:660:4406:1a0:50b::9",
+      "kavlan-12": "2001:660:4406:2a0:50b::9",
+      "kavlan-13": "2001:660:4406:4a0:50b::9",
+      "kavlan-14": "2001:660:4406:5a0:50b::9",
+      "kavlan-16": "2001:660:4406:7a0:50b::9",
+      "kavlan-18": "2001:660:4406:8a0:50b::9",
+      "kavlan-2": "2001:660:4406:581:b::9",
+      "kavlan-20": "2001:660:4406:3a0:50b::9",
+      "kavlan-21": "2001:660:4406:6a0:50b::9",
+      "kavlan-3": "2001:660:4406:582:b::9",
+      "kavlan-4": "2001:660:4406:590:b::9",
+      "kavlan-5": "2001:660:4406:591:b::9",
+      "kavlan-6": "2001:660:4406:592:b::9",
+      "kavlan-7": "2001:660:4406:593:b::9",
+      "kavlan-8": "2001:660:4406:594:b::9",
+      "kavlan-9": "2001:660:4406:595:b::9"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.9",
-      "ip6": "2001:660:4406:500:b:0::9",
+      "ip6": "2001:660:4406:500:b::9",
       "kavlan": true,
       "mac": "24:6e:96:63:d7:48",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-1.json b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-1.json
index 7b9bd7cdfd6d176491f308a8b4a3b4b777295f35..a9fb76c2f87217fc4a7fb7b7752cce44ec9ae161 100644
--- a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-1.json
+++ b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-1.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:a:0::1",
-      "kavlan-11": "2001:660:4406:1a0:50a:0::1",
-      "kavlan-12": "2001:660:4406:2a0:50a:0::1",
-      "kavlan-13": "2001:660:4406:4a0:50a:0::1",
-      "kavlan-14": "2001:660:4406:5a0:50a:0::1",
-      "kavlan-16": "2001:660:4406:7a0:50a:0::1",
-      "kavlan-18": "2001:660:4406:8a0:50a:0::1",
-      "kavlan-2": "2001:660:4406:581:a:0::1",
-      "kavlan-20": "2001:660:4406:3a0:50a:0::1",
-      "kavlan-21": "2001:660:4406:6a0:50a:0::1",
-      "kavlan-3": "2001:660:4406:582:a:0::1",
-      "kavlan-4": "2001:660:4406:590:a:0::1",
-      "kavlan-5": "2001:660:4406:591:a:0::1",
-      "kavlan-6": "2001:660:4406:592:a:0::1",
-      "kavlan-7": "2001:660:4406:593:a:0::1",
-      "kavlan-8": "2001:660:4406:594:a:0::1",
-      "kavlan-9": "2001:660:4406:595:a:0::1"
+      "kavlan-1": "2001:660:4406:580:a::1",
+      "kavlan-11": "2001:660:4406:1a0:50a::1",
+      "kavlan-12": "2001:660:4406:2a0:50a::1",
+      "kavlan-13": "2001:660:4406:4a0:50a::1",
+      "kavlan-14": "2001:660:4406:5a0:50a::1",
+      "kavlan-16": "2001:660:4406:7a0:50a::1",
+      "kavlan-18": "2001:660:4406:8a0:50a::1",
+      "kavlan-2": "2001:660:4406:581:a::1",
+      "kavlan-20": "2001:660:4406:3a0:50a::1",
+      "kavlan-21": "2001:660:4406:6a0:50a::1",
+      "kavlan-3": "2001:660:4406:582:a::1",
+      "kavlan-4": "2001:660:4406:590:a::1",
+      "kavlan-5": "2001:660:4406:591:a::1",
+      "kavlan-6": "2001:660:4406:592:a::1",
+      "kavlan-7": "2001:660:4406:593:a::1",
+      "kavlan-8": "2001:660:4406:594:a::1",
+      "kavlan-9": "2001:660:4406:595:a::1"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.1",
-      "ip6": "2001:660:4406:500:a:0::1",
+      "ip6": "2001:660:4406:500:a::1",
       "kavlan": true,
       "mac": "24:6e:96:16:65:60",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-2.json b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-2.json
index 3399337f15ae330673f5dbfdea3efd6cbce8587b..695008b719af39798364cb76aebf7a9e2abc89f4 100644
--- a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-2.json
+++ b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-2.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:a:0::2",
-      "kavlan-11": "2001:660:4406:1a0:50a:0::2",
-      "kavlan-12": "2001:660:4406:2a0:50a:0::2",
-      "kavlan-13": "2001:660:4406:4a0:50a:0::2",
-      "kavlan-14": "2001:660:4406:5a0:50a:0::2",
-      "kavlan-16": "2001:660:4406:7a0:50a:0::2",
-      "kavlan-18": "2001:660:4406:8a0:50a:0::2",
-      "kavlan-2": "2001:660:4406:581:a:0::2",
-      "kavlan-20": "2001:660:4406:3a0:50a:0::2",
-      "kavlan-21": "2001:660:4406:6a0:50a:0::2",
-      "kavlan-3": "2001:660:4406:582:a:0::2",
-      "kavlan-4": "2001:660:4406:590:a:0::2",
-      "kavlan-5": "2001:660:4406:591:a:0::2",
-      "kavlan-6": "2001:660:4406:592:a:0::2",
-      "kavlan-7": "2001:660:4406:593:a:0::2",
-      "kavlan-8": "2001:660:4406:594:a:0::2",
-      "kavlan-9": "2001:660:4406:595:a:0::2"
+      "kavlan-1": "2001:660:4406:580:a::2",
+      "kavlan-11": "2001:660:4406:1a0:50a::2",
+      "kavlan-12": "2001:660:4406:2a0:50a::2",
+      "kavlan-13": "2001:660:4406:4a0:50a::2",
+      "kavlan-14": "2001:660:4406:5a0:50a::2",
+      "kavlan-16": "2001:660:4406:7a0:50a::2",
+      "kavlan-18": "2001:660:4406:8a0:50a::2",
+      "kavlan-2": "2001:660:4406:581:a::2",
+      "kavlan-20": "2001:660:4406:3a0:50a::2",
+      "kavlan-21": "2001:660:4406:6a0:50a::2",
+      "kavlan-3": "2001:660:4406:582:a::2",
+      "kavlan-4": "2001:660:4406:590:a::2",
+      "kavlan-5": "2001:660:4406:591:a::2",
+      "kavlan-6": "2001:660:4406:592:a::2",
+      "kavlan-7": "2001:660:4406:593:a::2",
+      "kavlan-8": "2001:660:4406:594:a::2",
+      "kavlan-9": "2001:660:4406:595:a::2"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.2",
-      "ip6": "2001:660:4406:500:a:0::2",
+      "ip6": "2001:660:4406:500:a::2",
       "kavlan": true,
       "mac": "24:6e:96:15:46:e8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-3.json b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-3.json
index 7bb308ca8db4ee4e087633f67587b5b35a5cf62e..4927d15e6f24bd4826bb1c56cf6dea2799cfad52 100644
--- a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-3.json
+++ b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-3.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:a:0::3",
-      "kavlan-11": "2001:660:4406:1a0:50a:0::3",
-      "kavlan-12": "2001:660:4406:2a0:50a:0::3",
-      "kavlan-13": "2001:660:4406:4a0:50a:0::3",
-      "kavlan-14": "2001:660:4406:5a0:50a:0::3",
-      "kavlan-16": "2001:660:4406:7a0:50a:0::3",
-      "kavlan-18": "2001:660:4406:8a0:50a:0::3",
-      "kavlan-2": "2001:660:4406:581:a:0::3",
-      "kavlan-20": "2001:660:4406:3a0:50a:0::3",
-      "kavlan-21": "2001:660:4406:6a0:50a:0::3",
-      "kavlan-3": "2001:660:4406:582:a:0::3",
-      "kavlan-4": "2001:660:4406:590:a:0::3",
-      "kavlan-5": "2001:660:4406:591:a:0::3",
-      "kavlan-6": "2001:660:4406:592:a:0::3",
-      "kavlan-7": "2001:660:4406:593:a:0::3",
-      "kavlan-8": "2001:660:4406:594:a:0::3",
-      "kavlan-9": "2001:660:4406:595:a:0::3"
+      "kavlan-1": "2001:660:4406:580:a::3",
+      "kavlan-11": "2001:660:4406:1a0:50a::3",
+      "kavlan-12": "2001:660:4406:2a0:50a::3",
+      "kavlan-13": "2001:660:4406:4a0:50a::3",
+      "kavlan-14": "2001:660:4406:5a0:50a::3",
+      "kavlan-16": "2001:660:4406:7a0:50a::3",
+      "kavlan-18": "2001:660:4406:8a0:50a::3",
+      "kavlan-2": "2001:660:4406:581:a::3",
+      "kavlan-20": "2001:660:4406:3a0:50a::3",
+      "kavlan-21": "2001:660:4406:6a0:50a::3",
+      "kavlan-3": "2001:660:4406:582:a::3",
+      "kavlan-4": "2001:660:4406:590:a::3",
+      "kavlan-5": "2001:660:4406:591:a::3",
+      "kavlan-6": "2001:660:4406:592:a::3",
+      "kavlan-7": "2001:660:4406:593:a::3",
+      "kavlan-8": "2001:660:4406:594:a::3",
+      "kavlan-9": "2001:660:4406:595:a::3"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.3",
-      "ip6": "2001:660:4406:500:a:0::3",
+      "ip6": "2001:660:4406:500:a::3",
       "kavlan": true,
       "mac": "24:6e:96:15:46:88",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-4.json b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-4.json
index a4e44007c8eb4c249fad14d9eb70128872c3ac27..a8052a893c38275c3feea8ca2e90e04f64b9d645 100644
--- a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-4.json
+++ b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-4.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:a:0::4",
-      "kavlan-11": "2001:660:4406:1a0:50a:0::4",
-      "kavlan-12": "2001:660:4406:2a0:50a:0::4",
-      "kavlan-13": "2001:660:4406:4a0:50a:0::4",
-      "kavlan-14": "2001:660:4406:5a0:50a:0::4",
-      "kavlan-16": "2001:660:4406:7a0:50a:0::4",
-      "kavlan-18": "2001:660:4406:8a0:50a:0::4",
-      "kavlan-2": "2001:660:4406:581:a:0::4",
-      "kavlan-20": "2001:660:4406:3a0:50a:0::4",
-      "kavlan-21": "2001:660:4406:6a0:50a:0::4",
-      "kavlan-3": "2001:660:4406:582:a:0::4",
-      "kavlan-4": "2001:660:4406:590:a:0::4",
-      "kavlan-5": "2001:660:4406:591:a:0::4",
-      "kavlan-6": "2001:660:4406:592:a:0::4",
-      "kavlan-7": "2001:660:4406:593:a:0::4",
-      "kavlan-8": "2001:660:4406:594:a:0::4",
-      "kavlan-9": "2001:660:4406:595:a:0::4"
+      "kavlan-1": "2001:660:4406:580:a::4",
+      "kavlan-11": "2001:660:4406:1a0:50a::4",
+      "kavlan-12": "2001:660:4406:2a0:50a::4",
+      "kavlan-13": "2001:660:4406:4a0:50a::4",
+      "kavlan-14": "2001:660:4406:5a0:50a::4",
+      "kavlan-16": "2001:660:4406:7a0:50a::4",
+      "kavlan-18": "2001:660:4406:8a0:50a::4",
+      "kavlan-2": "2001:660:4406:581:a::4",
+      "kavlan-20": "2001:660:4406:3a0:50a::4",
+      "kavlan-21": "2001:660:4406:6a0:50a::4",
+      "kavlan-3": "2001:660:4406:582:a::4",
+      "kavlan-4": "2001:660:4406:590:a::4",
+      "kavlan-5": "2001:660:4406:591:a::4",
+      "kavlan-6": "2001:660:4406:592:a::4",
+      "kavlan-7": "2001:660:4406:593:a::4",
+      "kavlan-8": "2001:660:4406:594:a::4",
+      "kavlan-9": "2001:660:4406:595:a::4"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.4",
-      "ip6": "2001:660:4406:500:a:0::4",
+      "ip6": "2001:660:4406:500:a::4",
       "kavlan": true,
       "mac": "24:6e:96:16:41:68",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-5.json b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-5.json
index 5f4eb538e9692677996d98930201c16bd51fa2c3..e3ac773271735cd4138226975b31ae741938429e 100644
--- a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-5.json
+++ b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-5.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:a:0::5",
-      "kavlan-11": "2001:660:4406:1a0:50a:0::5",
-      "kavlan-12": "2001:660:4406:2a0:50a:0::5",
-      "kavlan-13": "2001:660:4406:4a0:50a:0::5",
-      "kavlan-14": "2001:660:4406:5a0:50a:0::5",
-      "kavlan-16": "2001:660:4406:7a0:50a:0::5",
-      "kavlan-18": "2001:660:4406:8a0:50a:0::5",
-      "kavlan-2": "2001:660:4406:581:a:0::5",
-      "kavlan-20": "2001:660:4406:3a0:50a:0::5",
-      "kavlan-21": "2001:660:4406:6a0:50a:0::5",
-      "kavlan-3": "2001:660:4406:582:a:0::5",
-      "kavlan-4": "2001:660:4406:590:a:0::5",
-      "kavlan-5": "2001:660:4406:591:a:0::5",
-      "kavlan-6": "2001:660:4406:592:a:0::5",
-      "kavlan-7": "2001:660:4406:593:a:0::5",
-      "kavlan-8": "2001:660:4406:594:a:0::5",
-      "kavlan-9": "2001:660:4406:595:a:0::5"
+      "kavlan-1": "2001:660:4406:580:a::5",
+      "kavlan-11": "2001:660:4406:1a0:50a::5",
+      "kavlan-12": "2001:660:4406:2a0:50a::5",
+      "kavlan-13": "2001:660:4406:4a0:50a::5",
+      "kavlan-14": "2001:660:4406:5a0:50a::5",
+      "kavlan-16": "2001:660:4406:7a0:50a::5",
+      "kavlan-18": "2001:660:4406:8a0:50a::5",
+      "kavlan-2": "2001:660:4406:581:a::5",
+      "kavlan-20": "2001:660:4406:3a0:50a::5",
+      "kavlan-21": "2001:660:4406:6a0:50a::5",
+      "kavlan-3": "2001:660:4406:582:a::5",
+      "kavlan-4": "2001:660:4406:590:a::5",
+      "kavlan-5": "2001:660:4406:591:a::5",
+      "kavlan-6": "2001:660:4406:592:a::5",
+      "kavlan-7": "2001:660:4406:593:a::5",
+      "kavlan-8": "2001:660:4406:594:a::5",
+      "kavlan-9": "2001:660:4406:595:a::5"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.5",
-      "ip6": "2001:660:4406:500:a:0::5",
+      "ip6": "2001:660:4406:500:a::5",
       "kavlan": true,
       "mac": "24:6e:96:16:5c:e8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-6.json b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-6.json
index f4e0343b344cdf52a0de283a91bf59555c3168b2..a167f1dd2b204e71caa2898d514fa8a2a7de26d7 100644
--- a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-6.json
+++ b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-6.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:a:0::6",
-      "kavlan-11": "2001:660:4406:1a0:50a:0::6",
-      "kavlan-12": "2001:660:4406:2a0:50a:0::6",
-      "kavlan-13": "2001:660:4406:4a0:50a:0::6",
-      "kavlan-14": "2001:660:4406:5a0:50a:0::6",
-      "kavlan-16": "2001:660:4406:7a0:50a:0::6",
-      "kavlan-18": "2001:660:4406:8a0:50a:0::6",
-      "kavlan-2": "2001:660:4406:581:a:0::6",
-      "kavlan-20": "2001:660:4406:3a0:50a:0::6",
-      "kavlan-21": "2001:660:4406:6a0:50a:0::6",
-      "kavlan-3": "2001:660:4406:582:a:0::6",
-      "kavlan-4": "2001:660:4406:590:a:0::6",
-      "kavlan-5": "2001:660:4406:591:a:0::6",
-      "kavlan-6": "2001:660:4406:592:a:0::6",
-      "kavlan-7": "2001:660:4406:593:a:0::6",
-      "kavlan-8": "2001:660:4406:594:a:0::6",
-      "kavlan-9": "2001:660:4406:595:a:0::6"
+      "kavlan-1": "2001:660:4406:580:a::6",
+      "kavlan-11": "2001:660:4406:1a0:50a::6",
+      "kavlan-12": "2001:660:4406:2a0:50a::6",
+      "kavlan-13": "2001:660:4406:4a0:50a::6",
+      "kavlan-14": "2001:660:4406:5a0:50a::6",
+      "kavlan-16": "2001:660:4406:7a0:50a::6",
+      "kavlan-18": "2001:660:4406:8a0:50a::6",
+      "kavlan-2": "2001:660:4406:581:a::6",
+      "kavlan-20": "2001:660:4406:3a0:50a::6",
+      "kavlan-21": "2001:660:4406:6a0:50a::6",
+      "kavlan-3": "2001:660:4406:582:a::6",
+      "kavlan-4": "2001:660:4406:590:a::6",
+      "kavlan-5": "2001:660:4406:591:a::6",
+      "kavlan-6": "2001:660:4406:592:a::6",
+      "kavlan-7": "2001:660:4406:593:a::6",
+      "kavlan-8": "2001:660:4406:594:a::6",
+      "kavlan-9": "2001:660:4406:595:a::6"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.6",
-      "ip6": "2001:660:4406:500:a:0::6",
+      "ip6": "2001:660:4406:500:a::6",
       "kavlan": true,
       "mac": "24:6e:96:16:5c:30",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-1.json b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-1.json
index f2db791413050d4650e4f012259f3bce91663d43..f22578b1c3e9d91c601b7a7348636b3f0f31294e 100644
--- a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-1.json
+++ b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-1.json
@@ -98,80 +98,80 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:8:0::1",
-      "kavlan-11": "2001:660:4406:1a0:508:0::1",
-      "kavlan-12": "2001:660:4406:2a0:508:0::1",
-      "kavlan-13": "2001:660:4406:4a0:508:0::1",
-      "kavlan-14": "2001:660:4406:5a0:508:0::1",
-      "kavlan-16": "2001:660:4406:7a0:508:0::1",
-      "kavlan-18": "2001:660:4406:8a0:508:0::1",
-      "kavlan-2": "2001:660:4406:581:8:0::1",
-      "kavlan-20": "2001:660:4406:3a0:508:0::1",
-      "kavlan-21": "2001:660:4406:6a0:508:0::1",
-      "kavlan-3": "2001:660:4406:582:8:0::1",
-      "kavlan-4": "2001:660:4406:590:8:0::1",
-      "kavlan-5": "2001:660:4406:591:8:0::1",
-      "kavlan-6": "2001:660:4406:592:8:0::1",
-      "kavlan-7": "2001:660:4406:593:8:0::1",
-      "kavlan-8": "2001:660:4406:594:8:0::1",
-      "kavlan-9": "2001:660:4406:595:8:0::1"
+      "kavlan-1": "2001:660:4406:580:8::1",
+      "kavlan-11": "2001:660:4406:1a0:508::1",
+      "kavlan-12": "2001:660:4406:2a0:508::1",
+      "kavlan-13": "2001:660:4406:4a0:508::1",
+      "kavlan-14": "2001:660:4406:5a0:508::1",
+      "kavlan-16": "2001:660:4406:7a0:508::1",
+      "kavlan-18": "2001:660:4406:8a0:508::1",
+      "kavlan-2": "2001:660:4406:581:8::1",
+      "kavlan-20": "2001:660:4406:3a0:508::1",
+      "kavlan-21": "2001:660:4406:6a0:508::1",
+      "kavlan-3": "2001:660:4406:582:8::1",
+      "kavlan-4": "2001:660:4406:590:8::1",
+      "kavlan-5": "2001:660:4406:591:8::1",
+      "kavlan-6": "2001:660:4406:592:8::1",
+      "kavlan-7": "2001:660:4406:593:8::1",
+      "kavlan-8": "2001:660:4406:594:8::1",
+      "kavlan-9": "2001:660:4406:595:8::1"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:8:1::1",
-      "kavlan-11": "2001:660:4406:1a0:508:1::1",
-      "kavlan-12": "2001:660:4406:2a0:508:1::1",
-      "kavlan-13": "2001:660:4406:4a0:508:1::1",
-      "kavlan-14": "2001:660:4406:5a0:508:1::1",
-      "kavlan-16": "2001:660:4406:7a0:508:1::1",
-      "kavlan-18": "2001:660:4406:8a0:508:1::1",
-      "kavlan-2": "2001:660:4406:581:8:1::1",
-      "kavlan-20": "2001:660:4406:3a0:508:1::1",
-      "kavlan-21": "2001:660:4406:6a0:508:1::1",
-      "kavlan-3": "2001:660:4406:582:8:1::1",
-      "kavlan-4": "2001:660:4406:590:8:1::1",
-      "kavlan-5": "2001:660:4406:591:8:1::1",
-      "kavlan-6": "2001:660:4406:592:8:1::1",
-      "kavlan-7": "2001:660:4406:593:8:1::1",
-      "kavlan-8": "2001:660:4406:594:8:1::1",
-      "kavlan-9": "2001:660:4406:595:8:1::1"
+      "kavlan-1": "2001:660:4406:580:8:1:0:1",
+      "kavlan-11": "2001:660:4406:1a0:508:1:0:1",
+      "kavlan-12": "2001:660:4406:2a0:508:1:0:1",
+      "kavlan-13": "2001:660:4406:4a0:508:1:0:1",
+      "kavlan-14": "2001:660:4406:5a0:508:1:0:1",
+      "kavlan-16": "2001:660:4406:7a0:508:1:0:1",
+      "kavlan-18": "2001:660:4406:8a0:508:1:0:1",
+      "kavlan-2": "2001:660:4406:581:8:1:0:1",
+      "kavlan-20": "2001:660:4406:3a0:508:1:0:1",
+      "kavlan-21": "2001:660:4406:6a0:508:1:0:1",
+      "kavlan-3": "2001:660:4406:582:8:1:0:1",
+      "kavlan-4": "2001:660:4406:590:8:1:0:1",
+      "kavlan-5": "2001:660:4406:591:8:1:0:1",
+      "kavlan-6": "2001:660:4406:592:8:1:0:1",
+      "kavlan-7": "2001:660:4406:593:8:1:0:1",
+      "kavlan-8": "2001:660:4406:594:8:1:0:1",
+      "kavlan-9": "2001:660:4406:595:8:1:0:1"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:8:2::1",
-      "kavlan-11": "2001:660:4406:1a0:508:2::1",
-      "kavlan-12": "2001:660:4406:2a0:508:2::1",
-      "kavlan-13": "2001:660:4406:4a0:508:2::1",
-      "kavlan-14": "2001:660:4406:5a0:508:2::1",
-      "kavlan-16": "2001:660:4406:7a0:508:2::1",
-      "kavlan-18": "2001:660:4406:8a0:508:2::1",
-      "kavlan-2": "2001:660:4406:581:8:2::1",
-      "kavlan-20": "2001:660:4406:3a0:508:2::1",
-      "kavlan-21": "2001:660:4406:6a0:508:2::1",
-      "kavlan-3": "2001:660:4406:582:8:2::1",
-      "kavlan-4": "2001:660:4406:590:8:2::1",
-      "kavlan-5": "2001:660:4406:591:8:2::1",
-      "kavlan-6": "2001:660:4406:592:8:2::1",
-      "kavlan-7": "2001:660:4406:593:8:2::1",
-      "kavlan-8": "2001:660:4406:594:8:2::1",
-      "kavlan-9": "2001:660:4406:595:8:2::1"
+      "kavlan-1": "2001:660:4406:580:8:2:0:1",
+      "kavlan-11": "2001:660:4406:1a0:508:2:0:1",
+      "kavlan-12": "2001:660:4406:2a0:508:2:0:1",
+      "kavlan-13": "2001:660:4406:4a0:508:2:0:1",
+      "kavlan-14": "2001:660:4406:5a0:508:2:0:1",
+      "kavlan-16": "2001:660:4406:7a0:508:2:0:1",
+      "kavlan-18": "2001:660:4406:8a0:508:2:0:1",
+      "kavlan-2": "2001:660:4406:581:8:2:0:1",
+      "kavlan-20": "2001:660:4406:3a0:508:2:0:1",
+      "kavlan-21": "2001:660:4406:6a0:508:2:0:1",
+      "kavlan-3": "2001:660:4406:582:8:2:0:1",
+      "kavlan-4": "2001:660:4406:590:8:2:0:1",
+      "kavlan-5": "2001:660:4406:591:8:2:0:1",
+      "kavlan-6": "2001:660:4406:592:8:2:0:1",
+      "kavlan-7": "2001:660:4406:593:8:2:0:1",
+      "kavlan-8": "2001:660:4406:594:8:2:0:1",
+      "kavlan-9": "2001:660:4406:595:8:2:0:1"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:8:3::1",
-      "kavlan-11": "2001:660:4406:1a0:508:3::1",
-      "kavlan-12": "2001:660:4406:2a0:508:3::1",
-      "kavlan-13": "2001:660:4406:4a0:508:3::1",
-      "kavlan-14": "2001:660:4406:5a0:508:3::1",
-      "kavlan-16": "2001:660:4406:7a0:508:3::1",
-      "kavlan-18": "2001:660:4406:8a0:508:3::1",
-      "kavlan-2": "2001:660:4406:581:8:3::1",
-      "kavlan-20": "2001:660:4406:3a0:508:3::1",
-      "kavlan-21": "2001:660:4406:6a0:508:3::1",
-      "kavlan-3": "2001:660:4406:582:8:3::1",
-      "kavlan-4": "2001:660:4406:590:8:3::1",
-      "kavlan-5": "2001:660:4406:591:8:3::1",
-      "kavlan-6": "2001:660:4406:592:8:3::1",
-      "kavlan-7": "2001:660:4406:593:8:3::1",
-      "kavlan-8": "2001:660:4406:594:8:3::1",
-      "kavlan-9": "2001:660:4406:595:8:3::1"
+      "kavlan-1": "2001:660:4406:580:8:3:0:1",
+      "kavlan-11": "2001:660:4406:1a0:508:3:0:1",
+      "kavlan-12": "2001:660:4406:2a0:508:3:0:1",
+      "kavlan-13": "2001:660:4406:4a0:508:3:0:1",
+      "kavlan-14": "2001:660:4406:5a0:508:3:0:1",
+      "kavlan-16": "2001:660:4406:7a0:508:3:0:1",
+      "kavlan-18": "2001:660:4406:8a0:508:3:0:1",
+      "kavlan-2": "2001:660:4406:581:8:3:0:1",
+      "kavlan-20": "2001:660:4406:3a0:508:3:0:1",
+      "kavlan-21": "2001:660:4406:6a0:508:3:0:1",
+      "kavlan-3": "2001:660:4406:582:8:3:0:1",
+      "kavlan-4": "2001:660:4406:590:8:3:0:1",
+      "kavlan-5": "2001:660:4406:591:8:3:0:1",
+      "kavlan-6": "2001:660:4406:592:8:3:0:1",
+      "kavlan-7": "2001:660:4406:593:8:3:0:1",
+      "kavlan-8": "2001:660:4406:594:8:3:0:1",
+      "kavlan-9": "2001:660:4406:595:8:3:0:1"
     }
   },
   "main_memory": {
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.1",
-      "ip6": "2001:660:4406:500:8:0::1",
+      "ip6": "2001:660:4406:500:8::1",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:c8",
       "management": false,
@@ -211,7 +211,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.51",
-      "ip6": "2001:660:4406:500:8:1::1",
+      "ip6": "2001:660:4406:500:8:1:0:1",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:ca",
       "management": false,
@@ -233,7 +233,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.101",
-      "ip6": "2001:660:4406:500:8:2::1",
+      "ip6": "2001:660:4406:500:8:2:0:1",
       "kavlan": true,
       "mac": "a0:36:9f:7f:35:b8",
       "management": false,
@@ -255,7 +255,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.151",
-      "ip6": "2001:660:4406:500:8:3::1",
+      "ip6": "2001:660:4406:500:8:3:0:1",
       "kavlan": true,
       "mac": "a0:36:9f:7f:35:ba",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-2.json b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-2.json
index 1979d071b2ab0d82275e649dfd6512122d6129af..21f3ee1cef05101e983c9dffc8e929a6cead5593 100644
--- a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-2.json
+++ b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-2.json
@@ -98,80 +98,80 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:8:0::2",
-      "kavlan-11": "2001:660:4406:1a0:508:0::2",
-      "kavlan-12": "2001:660:4406:2a0:508:0::2",
-      "kavlan-13": "2001:660:4406:4a0:508:0::2",
-      "kavlan-14": "2001:660:4406:5a0:508:0::2",
-      "kavlan-16": "2001:660:4406:7a0:508:0::2",
-      "kavlan-18": "2001:660:4406:8a0:508:0::2",
-      "kavlan-2": "2001:660:4406:581:8:0::2",
-      "kavlan-20": "2001:660:4406:3a0:508:0::2",
-      "kavlan-21": "2001:660:4406:6a0:508:0::2",
-      "kavlan-3": "2001:660:4406:582:8:0::2",
-      "kavlan-4": "2001:660:4406:590:8:0::2",
-      "kavlan-5": "2001:660:4406:591:8:0::2",
-      "kavlan-6": "2001:660:4406:592:8:0::2",
-      "kavlan-7": "2001:660:4406:593:8:0::2",
-      "kavlan-8": "2001:660:4406:594:8:0::2",
-      "kavlan-9": "2001:660:4406:595:8:0::2"
+      "kavlan-1": "2001:660:4406:580:8::2",
+      "kavlan-11": "2001:660:4406:1a0:508::2",
+      "kavlan-12": "2001:660:4406:2a0:508::2",
+      "kavlan-13": "2001:660:4406:4a0:508::2",
+      "kavlan-14": "2001:660:4406:5a0:508::2",
+      "kavlan-16": "2001:660:4406:7a0:508::2",
+      "kavlan-18": "2001:660:4406:8a0:508::2",
+      "kavlan-2": "2001:660:4406:581:8::2",
+      "kavlan-20": "2001:660:4406:3a0:508::2",
+      "kavlan-21": "2001:660:4406:6a0:508::2",
+      "kavlan-3": "2001:660:4406:582:8::2",
+      "kavlan-4": "2001:660:4406:590:8::2",
+      "kavlan-5": "2001:660:4406:591:8::2",
+      "kavlan-6": "2001:660:4406:592:8::2",
+      "kavlan-7": "2001:660:4406:593:8::2",
+      "kavlan-8": "2001:660:4406:594:8::2",
+      "kavlan-9": "2001:660:4406:595:8::2"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:8:1::2",
-      "kavlan-11": "2001:660:4406:1a0:508:1::2",
-      "kavlan-12": "2001:660:4406:2a0:508:1::2",
-      "kavlan-13": "2001:660:4406:4a0:508:1::2",
-      "kavlan-14": "2001:660:4406:5a0:508:1::2",
-      "kavlan-16": "2001:660:4406:7a0:508:1::2",
-      "kavlan-18": "2001:660:4406:8a0:508:1::2",
-      "kavlan-2": "2001:660:4406:581:8:1::2",
-      "kavlan-20": "2001:660:4406:3a0:508:1::2",
-      "kavlan-21": "2001:660:4406:6a0:508:1::2",
-      "kavlan-3": "2001:660:4406:582:8:1::2",
-      "kavlan-4": "2001:660:4406:590:8:1::2",
-      "kavlan-5": "2001:660:4406:591:8:1::2",
-      "kavlan-6": "2001:660:4406:592:8:1::2",
-      "kavlan-7": "2001:660:4406:593:8:1::2",
-      "kavlan-8": "2001:660:4406:594:8:1::2",
-      "kavlan-9": "2001:660:4406:595:8:1::2"
+      "kavlan-1": "2001:660:4406:580:8:1:0:2",
+      "kavlan-11": "2001:660:4406:1a0:508:1:0:2",
+      "kavlan-12": "2001:660:4406:2a0:508:1:0:2",
+      "kavlan-13": "2001:660:4406:4a0:508:1:0:2",
+      "kavlan-14": "2001:660:4406:5a0:508:1:0:2",
+      "kavlan-16": "2001:660:4406:7a0:508:1:0:2",
+      "kavlan-18": "2001:660:4406:8a0:508:1:0:2",
+      "kavlan-2": "2001:660:4406:581:8:1:0:2",
+      "kavlan-20": "2001:660:4406:3a0:508:1:0:2",
+      "kavlan-21": "2001:660:4406:6a0:508:1:0:2",
+      "kavlan-3": "2001:660:4406:582:8:1:0:2",
+      "kavlan-4": "2001:660:4406:590:8:1:0:2",
+      "kavlan-5": "2001:660:4406:591:8:1:0:2",
+      "kavlan-6": "2001:660:4406:592:8:1:0:2",
+      "kavlan-7": "2001:660:4406:593:8:1:0:2",
+      "kavlan-8": "2001:660:4406:594:8:1:0:2",
+      "kavlan-9": "2001:660:4406:595:8:1:0:2"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:8:2::2",
-      "kavlan-11": "2001:660:4406:1a0:508:2::2",
-      "kavlan-12": "2001:660:4406:2a0:508:2::2",
-      "kavlan-13": "2001:660:4406:4a0:508:2::2",
-      "kavlan-14": "2001:660:4406:5a0:508:2::2",
-      "kavlan-16": "2001:660:4406:7a0:508:2::2",
-      "kavlan-18": "2001:660:4406:8a0:508:2::2",
-      "kavlan-2": "2001:660:4406:581:8:2::2",
-      "kavlan-20": "2001:660:4406:3a0:508:2::2",
-      "kavlan-21": "2001:660:4406:6a0:508:2::2",
-      "kavlan-3": "2001:660:4406:582:8:2::2",
-      "kavlan-4": "2001:660:4406:590:8:2::2",
-      "kavlan-5": "2001:660:4406:591:8:2::2",
-      "kavlan-6": "2001:660:4406:592:8:2::2",
-      "kavlan-7": "2001:660:4406:593:8:2::2",
-      "kavlan-8": "2001:660:4406:594:8:2::2",
-      "kavlan-9": "2001:660:4406:595:8:2::2"
+      "kavlan-1": "2001:660:4406:580:8:2:0:2",
+      "kavlan-11": "2001:660:4406:1a0:508:2:0:2",
+      "kavlan-12": "2001:660:4406:2a0:508:2:0:2",
+      "kavlan-13": "2001:660:4406:4a0:508:2:0:2",
+      "kavlan-14": "2001:660:4406:5a0:508:2:0:2",
+      "kavlan-16": "2001:660:4406:7a0:508:2:0:2",
+      "kavlan-18": "2001:660:4406:8a0:508:2:0:2",
+      "kavlan-2": "2001:660:4406:581:8:2:0:2",
+      "kavlan-20": "2001:660:4406:3a0:508:2:0:2",
+      "kavlan-21": "2001:660:4406:6a0:508:2:0:2",
+      "kavlan-3": "2001:660:4406:582:8:2:0:2",
+      "kavlan-4": "2001:660:4406:590:8:2:0:2",
+      "kavlan-5": "2001:660:4406:591:8:2:0:2",
+      "kavlan-6": "2001:660:4406:592:8:2:0:2",
+      "kavlan-7": "2001:660:4406:593:8:2:0:2",
+      "kavlan-8": "2001:660:4406:594:8:2:0:2",
+      "kavlan-9": "2001:660:4406:595:8:2:0:2"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:8:3::2",
-      "kavlan-11": "2001:660:4406:1a0:508:3::2",
-      "kavlan-12": "2001:660:4406:2a0:508:3::2",
-      "kavlan-13": "2001:660:4406:4a0:508:3::2",
-      "kavlan-14": "2001:660:4406:5a0:508:3::2",
-      "kavlan-16": "2001:660:4406:7a0:508:3::2",
-      "kavlan-18": "2001:660:4406:8a0:508:3::2",
-      "kavlan-2": "2001:660:4406:581:8:3::2",
-      "kavlan-20": "2001:660:4406:3a0:508:3::2",
-      "kavlan-21": "2001:660:4406:6a0:508:3::2",
-      "kavlan-3": "2001:660:4406:582:8:3::2",
-      "kavlan-4": "2001:660:4406:590:8:3::2",
-      "kavlan-5": "2001:660:4406:591:8:3::2",
-      "kavlan-6": "2001:660:4406:592:8:3::2",
-      "kavlan-7": "2001:660:4406:593:8:3::2",
-      "kavlan-8": "2001:660:4406:594:8:3::2",
-      "kavlan-9": "2001:660:4406:595:8:3::2"
+      "kavlan-1": "2001:660:4406:580:8:3:0:2",
+      "kavlan-11": "2001:660:4406:1a0:508:3:0:2",
+      "kavlan-12": "2001:660:4406:2a0:508:3:0:2",
+      "kavlan-13": "2001:660:4406:4a0:508:3:0:2",
+      "kavlan-14": "2001:660:4406:5a0:508:3:0:2",
+      "kavlan-16": "2001:660:4406:7a0:508:3:0:2",
+      "kavlan-18": "2001:660:4406:8a0:508:3:0:2",
+      "kavlan-2": "2001:660:4406:581:8:3:0:2",
+      "kavlan-20": "2001:660:4406:3a0:508:3:0:2",
+      "kavlan-21": "2001:660:4406:6a0:508:3:0:2",
+      "kavlan-3": "2001:660:4406:582:8:3:0:2",
+      "kavlan-4": "2001:660:4406:590:8:3:0:2",
+      "kavlan-5": "2001:660:4406:591:8:3:0:2",
+      "kavlan-6": "2001:660:4406:592:8:3:0:2",
+      "kavlan-7": "2001:660:4406:593:8:3:0:2",
+      "kavlan-8": "2001:660:4406:594:8:3:0:2",
+      "kavlan-9": "2001:660:4406:595:8:3:0:2"
     }
   },
   "main_memory": {
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.2",
-      "ip6": "2001:660:4406:500:8:0::2",
+      "ip6": "2001:660:4406:500:8::2",
       "kavlan": true,
       "mac": "24:6e:96:03:24:78",
       "management": false,
@@ -211,7 +211,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.52",
-      "ip6": "2001:660:4406:500:8:1::2",
+      "ip6": "2001:660:4406:500:8:1:0:2",
       "kavlan": true,
       "mac": "24:6e:96:03:24:7a",
       "management": false,
@@ -233,7 +233,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.102",
-      "ip6": "2001:660:4406:500:8:2::2",
+      "ip6": "2001:660:4406:500:8:2:0:2",
       "kavlan": true,
       "mac": "a0:36:9f:7f:34:c4",
       "management": false,
@@ -255,7 +255,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.152",
-      "ip6": "2001:660:4406:500:8:3::2",
+      "ip6": "2001:660:4406:500:8:3:0:2",
       "kavlan": true,
       "mac": "a0:36:9f:7f:34:c6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-3.json b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-3.json
index 4fae38d04bb753aaa7fb8879a180451328cb900b..1d3b91783988a75bbd7fd6cbb02cc79da3ed5fcf 100644
--- a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-3.json
+++ b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-3.json
@@ -98,80 +98,80 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:8:0::3",
-      "kavlan-11": "2001:660:4406:1a0:508:0::3",
-      "kavlan-12": "2001:660:4406:2a0:508:0::3",
-      "kavlan-13": "2001:660:4406:4a0:508:0::3",
-      "kavlan-14": "2001:660:4406:5a0:508:0::3",
-      "kavlan-16": "2001:660:4406:7a0:508:0::3",
-      "kavlan-18": "2001:660:4406:8a0:508:0::3",
-      "kavlan-2": "2001:660:4406:581:8:0::3",
-      "kavlan-20": "2001:660:4406:3a0:508:0::3",
-      "kavlan-21": "2001:660:4406:6a0:508:0::3",
-      "kavlan-3": "2001:660:4406:582:8:0::3",
-      "kavlan-4": "2001:660:4406:590:8:0::3",
-      "kavlan-5": "2001:660:4406:591:8:0::3",
-      "kavlan-6": "2001:660:4406:592:8:0::3",
-      "kavlan-7": "2001:660:4406:593:8:0::3",
-      "kavlan-8": "2001:660:4406:594:8:0::3",
-      "kavlan-9": "2001:660:4406:595:8:0::3"
+      "kavlan-1": "2001:660:4406:580:8::3",
+      "kavlan-11": "2001:660:4406:1a0:508::3",
+      "kavlan-12": "2001:660:4406:2a0:508::3",
+      "kavlan-13": "2001:660:4406:4a0:508::3",
+      "kavlan-14": "2001:660:4406:5a0:508::3",
+      "kavlan-16": "2001:660:4406:7a0:508::3",
+      "kavlan-18": "2001:660:4406:8a0:508::3",
+      "kavlan-2": "2001:660:4406:581:8::3",
+      "kavlan-20": "2001:660:4406:3a0:508::3",
+      "kavlan-21": "2001:660:4406:6a0:508::3",
+      "kavlan-3": "2001:660:4406:582:8::3",
+      "kavlan-4": "2001:660:4406:590:8::3",
+      "kavlan-5": "2001:660:4406:591:8::3",
+      "kavlan-6": "2001:660:4406:592:8::3",
+      "kavlan-7": "2001:660:4406:593:8::3",
+      "kavlan-8": "2001:660:4406:594:8::3",
+      "kavlan-9": "2001:660:4406:595:8::3"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:8:1::3",
-      "kavlan-11": "2001:660:4406:1a0:508:1::3",
-      "kavlan-12": "2001:660:4406:2a0:508:1::3",
-      "kavlan-13": "2001:660:4406:4a0:508:1::3",
-      "kavlan-14": "2001:660:4406:5a0:508:1::3",
-      "kavlan-16": "2001:660:4406:7a0:508:1::3",
-      "kavlan-18": "2001:660:4406:8a0:508:1::3",
-      "kavlan-2": "2001:660:4406:581:8:1::3",
-      "kavlan-20": "2001:660:4406:3a0:508:1::3",
-      "kavlan-21": "2001:660:4406:6a0:508:1::3",
-      "kavlan-3": "2001:660:4406:582:8:1::3",
-      "kavlan-4": "2001:660:4406:590:8:1::3",
-      "kavlan-5": "2001:660:4406:591:8:1::3",
-      "kavlan-6": "2001:660:4406:592:8:1::3",
-      "kavlan-7": "2001:660:4406:593:8:1::3",
-      "kavlan-8": "2001:660:4406:594:8:1::3",
-      "kavlan-9": "2001:660:4406:595:8:1::3"
+      "kavlan-1": "2001:660:4406:580:8:1:0:3",
+      "kavlan-11": "2001:660:4406:1a0:508:1:0:3",
+      "kavlan-12": "2001:660:4406:2a0:508:1:0:3",
+      "kavlan-13": "2001:660:4406:4a0:508:1:0:3",
+      "kavlan-14": "2001:660:4406:5a0:508:1:0:3",
+      "kavlan-16": "2001:660:4406:7a0:508:1:0:3",
+      "kavlan-18": "2001:660:4406:8a0:508:1:0:3",
+      "kavlan-2": "2001:660:4406:581:8:1:0:3",
+      "kavlan-20": "2001:660:4406:3a0:508:1:0:3",
+      "kavlan-21": "2001:660:4406:6a0:508:1:0:3",
+      "kavlan-3": "2001:660:4406:582:8:1:0:3",
+      "kavlan-4": "2001:660:4406:590:8:1:0:3",
+      "kavlan-5": "2001:660:4406:591:8:1:0:3",
+      "kavlan-6": "2001:660:4406:592:8:1:0:3",
+      "kavlan-7": "2001:660:4406:593:8:1:0:3",
+      "kavlan-8": "2001:660:4406:594:8:1:0:3",
+      "kavlan-9": "2001:660:4406:595:8:1:0:3"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:8:2::3",
-      "kavlan-11": "2001:660:4406:1a0:508:2::3",
-      "kavlan-12": "2001:660:4406:2a0:508:2::3",
-      "kavlan-13": "2001:660:4406:4a0:508:2::3",
-      "kavlan-14": "2001:660:4406:5a0:508:2::3",
-      "kavlan-16": "2001:660:4406:7a0:508:2::3",
-      "kavlan-18": "2001:660:4406:8a0:508:2::3",
-      "kavlan-2": "2001:660:4406:581:8:2::3",
-      "kavlan-20": "2001:660:4406:3a0:508:2::3",
-      "kavlan-21": "2001:660:4406:6a0:508:2::3",
-      "kavlan-3": "2001:660:4406:582:8:2::3",
-      "kavlan-4": "2001:660:4406:590:8:2::3",
-      "kavlan-5": "2001:660:4406:591:8:2::3",
-      "kavlan-6": "2001:660:4406:592:8:2::3",
-      "kavlan-7": "2001:660:4406:593:8:2::3",
-      "kavlan-8": "2001:660:4406:594:8:2::3",
-      "kavlan-9": "2001:660:4406:595:8:2::3"
+      "kavlan-1": "2001:660:4406:580:8:2:0:3",
+      "kavlan-11": "2001:660:4406:1a0:508:2:0:3",
+      "kavlan-12": "2001:660:4406:2a0:508:2:0:3",
+      "kavlan-13": "2001:660:4406:4a0:508:2:0:3",
+      "kavlan-14": "2001:660:4406:5a0:508:2:0:3",
+      "kavlan-16": "2001:660:4406:7a0:508:2:0:3",
+      "kavlan-18": "2001:660:4406:8a0:508:2:0:3",
+      "kavlan-2": "2001:660:4406:581:8:2:0:3",
+      "kavlan-20": "2001:660:4406:3a0:508:2:0:3",
+      "kavlan-21": "2001:660:4406:6a0:508:2:0:3",
+      "kavlan-3": "2001:660:4406:582:8:2:0:3",
+      "kavlan-4": "2001:660:4406:590:8:2:0:3",
+      "kavlan-5": "2001:660:4406:591:8:2:0:3",
+      "kavlan-6": "2001:660:4406:592:8:2:0:3",
+      "kavlan-7": "2001:660:4406:593:8:2:0:3",
+      "kavlan-8": "2001:660:4406:594:8:2:0:3",
+      "kavlan-9": "2001:660:4406:595:8:2:0:3"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:8:3::3",
-      "kavlan-11": "2001:660:4406:1a0:508:3::3",
-      "kavlan-12": "2001:660:4406:2a0:508:3::3",
-      "kavlan-13": "2001:660:4406:4a0:508:3::3",
-      "kavlan-14": "2001:660:4406:5a0:508:3::3",
-      "kavlan-16": "2001:660:4406:7a0:508:3::3",
-      "kavlan-18": "2001:660:4406:8a0:508:3::3",
-      "kavlan-2": "2001:660:4406:581:8:3::3",
-      "kavlan-20": "2001:660:4406:3a0:508:3::3",
-      "kavlan-21": "2001:660:4406:6a0:508:3::3",
-      "kavlan-3": "2001:660:4406:582:8:3::3",
-      "kavlan-4": "2001:660:4406:590:8:3::3",
-      "kavlan-5": "2001:660:4406:591:8:3::3",
-      "kavlan-6": "2001:660:4406:592:8:3::3",
-      "kavlan-7": "2001:660:4406:593:8:3::3",
-      "kavlan-8": "2001:660:4406:594:8:3::3",
-      "kavlan-9": "2001:660:4406:595:8:3::3"
+      "kavlan-1": "2001:660:4406:580:8:3:0:3",
+      "kavlan-11": "2001:660:4406:1a0:508:3:0:3",
+      "kavlan-12": "2001:660:4406:2a0:508:3:0:3",
+      "kavlan-13": "2001:660:4406:4a0:508:3:0:3",
+      "kavlan-14": "2001:660:4406:5a0:508:3:0:3",
+      "kavlan-16": "2001:660:4406:7a0:508:3:0:3",
+      "kavlan-18": "2001:660:4406:8a0:508:3:0:3",
+      "kavlan-2": "2001:660:4406:581:8:3:0:3",
+      "kavlan-20": "2001:660:4406:3a0:508:3:0:3",
+      "kavlan-21": "2001:660:4406:6a0:508:3:0:3",
+      "kavlan-3": "2001:660:4406:582:8:3:0:3",
+      "kavlan-4": "2001:660:4406:590:8:3:0:3",
+      "kavlan-5": "2001:660:4406:591:8:3:0:3",
+      "kavlan-6": "2001:660:4406:592:8:3:0:3",
+      "kavlan-7": "2001:660:4406:593:8:3:0:3",
+      "kavlan-8": "2001:660:4406:594:8:3:0:3",
+      "kavlan-9": "2001:660:4406:595:8:3:0:3"
     }
   },
   "main_memory": {
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.3",
-      "ip6": "2001:660:4406:500:8:0::3",
+      "ip6": "2001:660:4406:500:8::3",
       "kavlan": true,
       "mac": "24:6e:96:03:20:f0",
       "management": false,
@@ -211,7 +211,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.53",
-      "ip6": "2001:660:4406:500:8:1::3",
+      "ip6": "2001:660:4406:500:8:1:0:3",
       "kavlan": true,
       "mac": "24:6e:96:03:20:f2",
       "management": false,
@@ -233,7 +233,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.103",
-      "ip6": "2001:660:4406:500:8:2::3",
+      "ip6": "2001:660:4406:500:8:2:0:3",
       "kavlan": true,
       "mac": "a0:36:9f:7f:38:b4",
       "management": false,
@@ -255,7 +255,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.153",
-      "ip6": "2001:660:4406:500:8:3::3",
+      "ip6": "2001:660:4406:500:8:3:0:3",
       "kavlan": true,
       "mac": "a0:36:9f:7f:38:b6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-4.json b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-4.json
index e288a08856e57d0f5b1872083c6322dc8267e76a..c93137aa4d2149593fb13d5ea125953f4731e970 100644
--- a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-4.json
+++ b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-4.json
@@ -98,80 +98,80 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:8:0::4",
-      "kavlan-11": "2001:660:4406:1a0:508:0::4",
-      "kavlan-12": "2001:660:4406:2a0:508:0::4",
-      "kavlan-13": "2001:660:4406:4a0:508:0::4",
-      "kavlan-14": "2001:660:4406:5a0:508:0::4",
-      "kavlan-16": "2001:660:4406:7a0:508:0::4",
-      "kavlan-18": "2001:660:4406:8a0:508:0::4",
-      "kavlan-2": "2001:660:4406:581:8:0::4",
-      "kavlan-20": "2001:660:4406:3a0:508:0::4",
-      "kavlan-21": "2001:660:4406:6a0:508:0::4",
-      "kavlan-3": "2001:660:4406:582:8:0::4",
-      "kavlan-4": "2001:660:4406:590:8:0::4",
-      "kavlan-5": "2001:660:4406:591:8:0::4",
-      "kavlan-6": "2001:660:4406:592:8:0::4",
-      "kavlan-7": "2001:660:4406:593:8:0::4",
-      "kavlan-8": "2001:660:4406:594:8:0::4",
-      "kavlan-9": "2001:660:4406:595:8:0::4"
+      "kavlan-1": "2001:660:4406:580:8::4",
+      "kavlan-11": "2001:660:4406:1a0:508::4",
+      "kavlan-12": "2001:660:4406:2a0:508::4",
+      "kavlan-13": "2001:660:4406:4a0:508::4",
+      "kavlan-14": "2001:660:4406:5a0:508::4",
+      "kavlan-16": "2001:660:4406:7a0:508::4",
+      "kavlan-18": "2001:660:4406:8a0:508::4",
+      "kavlan-2": "2001:660:4406:581:8::4",
+      "kavlan-20": "2001:660:4406:3a0:508::4",
+      "kavlan-21": "2001:660:4406:6a0:508::4",
+      "kavlan-3": "2001:660:4406:582:8::4",
+      "kavlan-4": "2001:660:4406:590:8::4",
+      "kavlan-5": "2001:660:4406:591:8::4",
+      "kavlan-6": "2001:660:4406:592:8::4",
+      "kavlan-7": "2001:660:4406:593:8::4",
+      "kavlan-8": "2001:660:4406:594:8::4",
+      "kavlan-9": "2001:660:4406:595:8::4"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:8:1::4",
-      "kavlan-11": "2001:660:4406:1a0:508:1::4",
-      "kavlan-12": "2001:660:4406:2a0:508:1::4",
-      "kavlan-13": "2001:660:4406:4a0:508:1::4",
-      "kavlan-14": "2001:660:4406:5a0:508:1::4",
-      "kavlan-16": "2001:660:4406:7a0:508:1::4",
-      "kavlan-18": "2001:660:4406:8a0:508:1::4",
-      "kavlan-2": "2001:660:4406:581:8:1::4",
-      "kavlan-20": "2001:660:4406:3a0:508:1::4",
-      "kavlan-21": "2001:660:4406:6a0:508:1::4",
-      "kavlan-3": "2001:660:4406:582:8:1::4",
-      "kavlan-4": "2001:660:4406:590:8:1::4",
-      "kavlan-5": "2001:660:4406:591:8:1::4",
-      "kavlan-6": "2001:660:4406:592:8:1::4",
-      "kavlan-7": "2001:660:4406:593:8:1::4",
-      "kavlan-8": "2001:660:4406:594:8:1::4",
-      "kavlan-9": "2001:660:4406:595:8:1::4"
+      "kavlan-1": "2001:660:4406:580:8:1:0:4",
+      "kavlan-11": "2001:660:4406:1a0:508:1:0:4",
+      "kavlan-12": "2001:660:4406:2a0:508:1:0:4",
+      "kavlan-13": "2001:660:4406:4a0:508:1:0:4",
+      "kavlan-14": "2001:660:4406:5a0:508:1:0:4",
+      "kavlan-16": "2001:660:4406:7a0:508:1:0:4",
+      "kavlan-18": "2001:660:4406:8a0:508:1:0:4",
+      "kavlan-2": "2001:660:4406:581:8:1:0:4",
+      "kavlan-20": "2001:660:4406:3a0:508:1:0:4",
+      "kavlan-21": "2001:660:4406:6a0:508:1:0:4",
+      "kavlan-3": "2001:660:4406:582:8:1:0:4",
+      "kavlan-4": "2001:660:4406:590:8:1:0:4",
+      "kavlan-5": "2001:660:4406:591:8:1:0:4",
+      "kavlan-6": "2001:660:4406:592:8:1:0:4",
+      "kavlan-7": "2001:660:4406:593:8:1:0:4",
+      "kavlan-8": "2001:660:4406:594:8:1:0:4",
+      "kavlan-9": "2001:660:4406:595:8:1:0:4"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:8:2::4",
-      "kavlan-11": "2001:660:4406:1a0:508:2::4",
-      "kavlan-12": "2001:660:4406:2a0:508:2::4",
-      "kavlan-13": "2001:660:4406:4a0:508:2::4",
-      "kavlan-14": "2001:660:4406:5a0:508:2::4",
-      "kavlan-16": "2001:660:4406:7a0:508:2::4",
-      "kavlan-18": "2001:660:4406:8a0:508:2::4",
-      "kavlan-2": "2001:660:4406:581:8:2::4",
-      "kavlan-20": "2001:660:4406:3a0:508:2::4",
-      "kavlan-21": "2001:660:4406:6a0:508:2::4",
-      "kavlan-3": "2001:660:4406:582:8:2::4",
-      "kavlan-4": "2001:660:4406:590:8:2::4",
-      "kavlan-5": "2001:660:4406:591:8:2::4",
-      "kavlan-6": "2001:660:4406:592:8:2::4",
-      "kavlan-7": "2001:660:4406:593:8:2::4",
-      "kavlan-8": "2001:660:4406:594:8:2::4",
-      "kavlan-9": "2001:660:4406:595:8:2::4"
+      "kavlan-1": "2001:660:4406:580:8:2:0:4",
+      "kavlan-11": "2001:660:4406:1a0:508:2:0:4",
+      "kavlan-12": "2001:660:4406:2a0:508:2:0:4",
+      "kavlan-13": "2001:660:4406:4a0:508:2:0:4",
+      "kavlan-14": "2001:660:4406:5a0:508:2:0:4",
+      "kavlan-16": "2001:660:4406:7a0:508:2:0:4",
+      "kavlan-18": "2001:660:4406:8a0:508:2:0:4",
+      "kavlan-2": "2001:660:4406:581:8:2:0:4",
+      "kavlan-20": "2001:660:4406:3a0:508:2:0:4",
+      "kavlan-21": "2001:660:4406:6a0:508:2:0:4",
+      "kavlan-3": "2001:660:4406:582:8:2:0:4",
+      "kavlan-4": "2001:660:4406:590:8:2:0:4",
+      "kavlan-5": "2001:660:4406:591:8:2:0:4",
+      "kavlan-6": "2001:660:4406:592:8:2:0:4",
+      "kavlan-7": "2001:660:4406:593:8:2:0:4",
+      "kavlan-8": "2001:660:4406:594:8:2:0:4",
+      "kavlan-9": "2001:660:4406:595:8:2:0:4"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:8:3::4",
-      "kavlan-11": "2001:660:4406:1a0:508:3::4",
-      "kavlan-12": "2001:660:4406:2a0:508:3::4",
-      "kavlan-13": "2001:660:4406:4a0:508:3::4",
-      "kavlan-14": "2001:660:4406:5a0:508:3::4",
-      "kavlan-16": "2001:660:4406:7a0:508:3::4",
-      "kavlan-18": "2001:660:4406:8a0:508:3::4",
-      "kavlan-2": "2001:660:4406:581:8:3::4",
-      "kavlan-20": "2001:660:4406:3a0:508:3::4",
-      "kavlan-21": "2001:660:4406:6a0:508:3::4",
-      "kavlan-3": "2001:660:4406:582:8:3::4",
-      "kavlan-4": "2001:660:4406:590:8:3::4",
-      "kavlan-5": "2001:660:4406:591:8:3::4",
-      "kavlan-6": "2001:660:4406:592:8:3::4",
-      "kavlan-7": "2001:660:4406:593:8:3::4",
-      "kavlan-8": "2001:660:4406:594:8:3::4",
-      "kavlan-9": "2001:660:4406:595:8:3::4"
+      "kavlan-1": "2001:660:4406:580:8:3:0:4",
+      "kavlan-11": "2001:660:4406:1a0:508:3:0:4",
+      "kavlan-12": "2001:660:4406:2a0:508:3:0:4",
+      "kavlan-13": "2001:660:4406:4a0:508:3:0:4",
+      "kavlan-14": "2001:660:4406:5a0:508:3:0:4",
+      "kavlan-16": "2001:660:4406:7a0:508:3:0:4",
+      "kavlan-18": "2001:660:4406:8a0:508:3:0:4",
+      "kavlan-2": "2001:660:4406:581:8:3:0:4",
+      "kavlan-20": "2001:660:4406:3a0:508:3:0:4",
+      "kavlan-21": "2001:660:4406:6a0:508:3:0:4",
+      "kavlan-3": "2001:660:4406:582:8:3:0:4",
+      "kavlan-4": "2001:660:4406:590:8:3:0:4",
+      "kavlan-5": "2001:660:4406:591:8:3:0:4",
+      "kavlan-6": "2001:660:4406:592:8:3:0:4",
+      "kavlan-7": "2001:660:4406:593:8:3:0:4",
+      "kavlan-8": "2001:660:4406:594:8:3:0:4",
+      "kavlan-9": "2001:660:4406:595:8:3:0:4"
     }
   },
   "main_memory": {
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.4",
-      "ip6": "2001:660:4406:500:8:0::4",
+      "ip6": "2001:660:4406:500:8::4",
       "kavlan": true,
       "mac": "24:6e:96:02:a7:c8",
       "management": false,
@@ -211,7 +211,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.54",
-      "ip6": "2001:660:4406:500:8:1::4",
+      "ip6": "2001:660:4406:500:8:1:0:4",
       "kavlan": true,
       "mac": "24:6e:96:02:a7:ca",
       "management": false,
@@ -233,7 +233,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.104",
-      "ip6": "2001:660:4406:500:8:2::4",
+      "ip6": "2001:660:4406:500:8:2:0:4",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:a8",
       "management": false,
@@ -255,7 +255,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.154",
-      "ip6": "2001:660:4406:500:8:3::4",
+      "ip6": "2001:660:4406:500:8:3:0:4",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:aa",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-5.json b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-5.json
index f328e5471d6e2a02d451e55fc9f0c05caaee1dd8..5c86464795e50945908bb92c9f7bdd287652227b 100644
--- a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-5.json
+++ b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-5.json
@@ -98,80 +98,80 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:8:0::5",
-      "kavlan-11": "2001:660:4406:1a0:508:0::5",
-      "kavlan-12": "2001:660:4406:2a0:508:0::5",
-      "kavlan-13": "2001:660:4406:4a0:508:0::5",
-      "kavlan-14": "2001:660:4406:5a0:508:0::5",
-      "kavlan-16": "2001:660:4406:7a0:508:0::5",
-      "kavlan-18": "2001:660:4406:8a0:508:0::5",
-      "kavlan-2": "2001:660:4406:581:8:0::5",
-      "kavlan-20": "2001:660:4406:3a0:508:0::5",
-      "kavlan-21": "2001:660:4406:6a0:508:0::5",
-      "kavlan-3": "2001:660:4406:582:8:0::5",
-      "kavlan-4": "2001:660:4406:590:8:0::5",
-      "kavlan-5": "2001:660:4406:591:8:0::5",
-      "kavlan-6": "2001:660:4406:592:8:0::5",
-      "kavlan-7": "2001:660:4406:593:8:0::5",
-      "kavlan-8": "2001:660:4406:594:8:0::5",
-      "kavlan-9": "2001:660:4406:595:8:0::5"
+      "kavlan-1": "2001:660:4406:580:8::5",
+      "kavlan-11": "2001:660:4406:1a0:508::5",
+      "kavlan-12": "2001:660:4406:2a0:508::5",
+      "kavlan-13": "2001:660:4406:4a0:508::5",
+      "kavlan-14": "2001:660:4406:5a0:508::5",
+      "kavlan-16": "2001:660:4406:7a0:508::5",
+      "kavlan-18": "2001:660:4406:8a0:508::5",
+      "kavlan-2": "2001:660:4406:581:8::5",
+      "kavlan-20": "2001:660:4406:3a0:508::5",
+      "kavlan-21": "2001:660:4406:6a0:508::5",
+      "kavlan-3": "2001:660:4406:582:8::5",
+      "kavlan-4": "2001:660:4406:590:8::5",
+      "kavlan-5": "2001:660:4406:591:8::5",
+      "kavlan-6": "2001:660:4406:592:8::5",
+      "kavlan-7": "2001:660:4406:593:8::5",
+      "kavlan-8": "2001:660:4406:594:8::5",
+      "kavlan-9": "2001:660:4406:595:8::5"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:8:1::5",
-      "kavlan-11": "2001:660:4406:1a0:508:1::5",
-      "kavlan-12": "2001:660:4406:2a0:508:1::5",
-      "kavlan-13": "2001:660:4406:4a0:508:1::5",
-      "kavlan-14": "2001:660:4406:5a0:508:1::5",
-      "kavlan-16": "2001:660:4406:7a0:508:1::5",
-      "kavlan-18": "2001:660:4406:8a0:508:1::5",
-      "kavlan-2": "2001:660:4406:581:8:1::5",
-      "kavlan-20": "2001:660:4406:3a0:508:1::5",
-      "kavlan-21": "2001:660:4406:6a0:508:1::5",
-      "kavlan-3": "2001:660:4406:582:8:1::5",
-      "kavlan-4": "2001:660:4406:590:8:1::5",
-      "kavlan-5": "2001:660:4406:591:8:1::5",
-      "kavlan-6": "2001:660:4406:592:8:1::5",
-      "kavlan-7": "2001:660:4406:593:8:1::5",
-      "kavlan-8": "2001:660:4406:594:8:1::5",
-      "kavlan-9": "2001:660:4406:595:8:1::5"
+      "kavlan-1": "2001:660:4406:580:8:1:0:5",
+      "kavlan-11": "2001:660:4406:1a0:508:1:0:5",
+      "kavlan-12": "2001:660:4406:2a0:508:1:0:5",
+      "kavlan-13": "2001:660:4406:4a0:508:1:0:5",
+      "kavlan-14": "2001:660:4406:5a0:508:1:0:5",
+      "kavlan-16": "2001:660:4406:7a0:508:1:0:5",
+      "kavlan-18": "2001:660:4406:8a0:508:1:0:5",
+      "kavlan-2": "2001:660:4406:581:8:1:0:5",
+      "kavlan-20": "2001:660:4406:3a0:508:1:0:5",
+      "kavlan-21": "2001:660:4406:6a0:508:1:0:5",
+      "kavlan-3": "2001:660:4406:582:8:1:0:5",
+      "kavlan-4": "2001:660:4406:590:8:1:0:5",
+      "kavlan-5": "2001:660:4406:591:8:1:0:5",
+      "kavlan-6": "2001:660:4406:592:8:1:0:5",
+      "kavlan-7": "2001:660:4406:593:8:1:0:5",
+      "kavlan-8": "2001:660:4406:594:8:1:0:5",
+      "kavlan-9": "2001:660:4406:595:8:1:0:5"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:8:2::5",
-      "kavlan-11": "2001:660:4406:1a0:508:2::5",
-      "kavlan-12": "2001:660:4406:2a0:508:2::5",
-      "kavlan-13": "2001:660:4406:4a0:508:2::5",
-      "kavlan-14": "2001:660:4406:5a0:508:2::5",
-      "kavlan-16": "2001:660:4406:7a0:508:2::5",
-      "kavlan-18": "2001:660:4406:8a0:508:2::5",
-      "kavlan-2": "2001:660:4406:581:8:2::5",
-      "kavlan-20": "2001:660:4406:3a0:508:2::5",
-      "kavlan-21": "2001:660:4406:6a0:508:2::5",
-      "kavlan-3": "2001:660:4406:582:8:2::5",
-      "kavlan-4": "2001:660:4406:590:8:2::5",
-      "kavlan-5": "2001:660:4406:591:8:2::5",
-      "kavlan-6": "2001:660:4406:592:8:2::5",
-      "kavlan-7": "2001:660:4406:593:8:2::5",
-      "kavlan-8": "2001:660:4406:594:8:2::5",
-      "kavlan-9": "2001:660:4406:595:8:2::5"
+      "kavlan-1": "2001:660:4406:580:8:2:0:5",
+      "kavlan-11": "2001:660:4406:1a0:508:2:0:5",
+      "kavlan-12": "2001:660:4406:2a0:508:2:0:5",
+      "kavlan-13": "2001:660:4406:4a0:508:2:0:5",
+      "kavlan-14": "2001:660:4406:5a0:508:2:0:5",
+      "kavlan-16": "2001:660:4406:7a0:508:2:0:5",
+      "kavlan-18": "2001:660:4406:8a0:508:2:0:5",
+      "kavlan-2": "2001:660:4406:581:8:2:0:5",
+      "kavlan-20": "2001:660:4406:3a0:508:2:0:5",
+      "kavlan-21": "2001:660:4406:6a0:508:2:0:5",
+      "kavlan-3": "2001:660:4406:582:8:2:0:5",
+      "kavlan-4": "2001:660:4406:590:8:2:0:5",
+      "kavlan-5": "2001:660:4406:591:8:2:0:5",
+      "kavlan-6": "2001:660:4406:592:8:2:0:5",
+      "kavlan-7": "2001:660:4406:593:8:2:0:5",
+      "kavlan-8": "2001:660:4406:594:8:2:0:5",
+      "kavlan-9": "2001:660:4406:595:8:2:0:5"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:8:3::5",
-      "kavlan-11": "2001:660:4406:1a0:508:3::5",
-      "kavlan-12": "2001:660:4406:2a0:508:3::5",
-      "kavlan-13": "2001:660:4406:4a0:508:3::5",
-      "kavlan-14": "2001:660:4406:5a0:508:3::5",
-      "kavlan-16": "2001:660:4406:7a0:508:3::5",
-      "kavlan-18": "2001:660:4406:8a0:508:3::5",
-      "kavlan-2": "2001:660:4406:581:8:3::5",
-      "kavlan-20": "2001:660:4406:3a0:508:3::5",
-      "kavlan-21": "2001:660:4406:6a0:508:3::5",
-      "kavlan-3": "2001:660:4406:582:8:3::5",
-      "kavlan-4": "2001:660:4406:590:8:3::5",
-      "kavlan-5": "2001:660:4406:591:8:3::5",
-      "kavlan-6": "2001:660:4406:592:8:3::5",
-      "kavlan-7": "2001:660:4406:593:8:3::5",
-      "kavlan-8": "2001:660:4406:594:8:3::5",
-      "kavlan-9": "2001:660:4406:595:8:3::5"
+      "kavlan-1": "2001:660:4406:580:8:3:0:5",
+      "kavlan-11": "2001:660:4406:1a0:508:3:0:5",
+      "kavlan-12": "2001:660:4406:2a0:508:3:0:5",
+      "kavlan-13": "2001:660:4406:4a0:508:3:0:5",
+      "kavlan-14": "2001:660:4406:5a0:508:3:0:5",
+      "kavlan-16": "2001:660:4406:7a0:508:3:0:5",
+      "kavlan-18": "2001:660:4406:8a0:508:3:0:5",
+      "kavlan-2": "2001:660:4406:581:8:3:0:5",
+      "kavlan-20": "2001:660:4406:3a0:508:3:0:5",
+      "kavlan-21": "2001:660:4406:6a0:508:3:0:5",
+      "kavlan-3": "2001:660:4406:582:8:3:0:5",
+      "kavlan-4": "2001:660:4406:590:8:3:0:5",
+      "kavlan-5": "2001:660:4406:591:8:3:0:5",
+      "kavlan-6": "2001:660:4406:592:8:3:0:5",
+      "kavlan-7": "2001:660:4406:593:8:3:0:5",
+      "kavlan-8": "2001:660:4406:594:8:3:0:5",
+      "kavlan-9": "2001:660:4406:595:8:3:0:5"
     }
   },
   "main_memory": {
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.5",
-      "ip6": "2001:660:4406:500:8:0::5",
+      "ip6": "2001:660:4406:500:8::5",
       "kavlan": true,
       "mac": "24:6e:96:02:96:90",
       "management": false,
@@ -211,7 +211,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.55",
-      "ip6": "2001:660:4406:500:8:1::5",
+      "ip6": "2001:660:4406:500:8:1:0:5",
       "kavlan": true,
       "mac": "24:6e:96:02:96:92",
       "management": false,
@@ -233,7 +233,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.105",
-      "ip6": "2001:660:4406:500:8:2::5",
+      "ip6": "2001:660:4406:500:8:2:0:5",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:ac",
       "management": false,
@@ -255,7 +255,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.155",
-      "ip6": "2001:660:4406:500:8:3::5",
+      "ip6": "2001:660:4406:500:8:3:0:5",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:ae",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-6.json b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-6.json
index 01838e39d77280f982b8b3f96f1c59fa1b4ca1ec..efce3106aed5a5349d2a321e0ec17fe56443442d 100644
--- a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-6.json
+++ b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-6.json
@@ -98,80 +98,80 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:8:0::6",
-      "kavlan-11": "2001:660:4406:1a0:508:0::6",
-      "kavlan-12": "2001:660:4406:2a0:508:0::6",
-      "kavlan-13": "2001:660:4406:4a0:508:0::6",
-      "kavlan-14": "2001:660:4406:5a0:508:0::6",
-      "kavlan-16": "2001:660:4406:7a0:508:0::6",
-      "kavlan-18": "2001:660:4406:8a0:508:0::6",
-      "kavlan-2": "2001:660:4406:581:8:0::6",
-      "kavlan-20": "2001:660:4406:3a0:508:0::6",
-      "kavlan-21": "2001:660:4406:6a0:508:0::6",
-      "kavlan-3": "2001:660:4406:582:8:0::6",
-      "kavlan-4": "2001:660:4406:590:8:0::6",
-      "kavlan-5": "2001:660:4406:591:8:0::6",
-      "kavlan-6": "2001:660:4406:592:8:0::6",
-      "kavlan-7": "2001:660:4406:593:8:0::6",
-      "kavlan-8": "2001:660:4406:594:8:0::6",
-      "kavlan-9": "2001:660:4406:595:8:0::6"
+      "kavlan-1": "2001:660:4406:580:8::6",
+      "kavlan-11": "2001:660:4406:1a0:508::6",
+      "kavlan-12": "2001:660:4406:2a0:508::6",
+      "kavlan-13": "2001:660:4406:4a0:508::6",
+      "kavlan-14": "2001:660:4406:5a0:508::6",
+      "kavlan-16": "2001:660:4406:7a0:508::6",
+      "kavlan-18": "2001:660:4406:8a0:508::6",
+      "kavlan-2": "2001:660:4406:581:8::6",
+      "kavlan-20": "2001:660:4406:3a0:508::6",
+      "kavlan-21": "2001:660:4406:6a0:508::6",
+      "kavlan-3": "2001:660:4406:582:8::6",
+      "kavlan-4": "2001:660:4406:590:8::6",
+      "kavlan-5": "2001:660:4406:591:8::6",
+      "kavlan-6": "2001:660:4406:592:8::6",
+      "kavlan-7": "2001:660:4406:593:8::6",
+      "kavlan-8": "2001:660:4406:594:8::6",
+      "kavlan-9": "2001:660:4406:595:8::6"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:8:1::6",
-      "kavlan-11": "2001:660:4406:1a0:508:1::6",
-      "kavlan-12": "2001:660:4406:2a0:508:1::6",
-      "kavlan-13": "2001:660:4406:4a0:508:1::6",
-      "kavlan-14": "2001:660:4406:5a0:508:1::6",
-      "kavlan-16": "2001:660:4406:7a0:508:1::6",
-      "kavlan-18": "2001:660:4406:8a0:508:1::6",
-      "kavlan-2": "2001:660:4406:581:8:1::6",
-      "kavlan-20": "2001:660:4406:3a0:508:1::6",
-      "kavlan-21": "2001:660:4406:6a0:508:1::6",
-      "kavlan-3": "2001:660:4406:582:8:1::6",
-      "kavlan-4": "2001:660:4406:590:8:1::6",
-      "kavlan-5": "2001:660:4406:591:8:1::6",
-      "kavlan-6": "2001:660:4406:592:8:1::6",
-      "kavlan-7": "2001:660:4406:593:8:1::6",
-      "kavlan-8": "2001:660:4406:594:8:1::6",
-      "kavlan-9": "2001:660:4406:595:8:1::6"
+      "kavlan-1": "2001:660:4406:580:8:1:0:6",
+      "kavlan-11": "2001:660:4406:1a0:508:1:0:6",
+      "kavlan-12": "2001:660:4406:2a0:508:1:0:6",
+      "kavlan-13": "2001:660:4406:4a0:508:1:0:6",
+      "kavlan-14": "2001:660:4406:5a0:508:1:0:6",
+      "kavlan-16": "2001:660:4406:7a0:508:1:0:6",
+      "kavlan-18": "2001:660:4406:8a0:508:1:0:6",
+      "kavlan-2": "2001:660:4406:581:8:1:0:6",
+      "kavlan-20": "2001:660:4406:3a0:508:1:0:6",
+      "kavlan-21": "2001:660:4406:6a0:508:1:0:6",
+      "kavlan-3": "2001:660:4406:582:8:1:0:6",
+      "kavlan-4": "2001:660:4406:590:8:1:0:6",
+      "kavlan-5": "2001:660:4406:591:8:1:0:6",
+      "kavlan-6": "2001:660:4406:592:8:1:0:6",
+      "kavlan-7": "2001:660:4406:593:8:1:0:6",
+      "kavlan-8": "2001:660:4406:594:8:1:0:6",
+      "kavlan-9": "2001:660:4406:595:8:1:0:6"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:8:2::6",
-      "kavlan-11": "2001:660:4406:1a0:508:2::6",
-      "kavlan-12": "2001:660:4406:2a0:508:2::6",
-      "kavlan-13": "2001:660:4406:4a0:508:2::6",
-      "kavlan-14": "2001:660:4406:5a0:508:2::6",
-      "kavlan-16": "2001:660:4406:7a0:508:2::6",
-      "kavlan-18": "2001:660:4406:8a0:508:2::6",
-      "kavlan-2": "2001:660:4406:581:8:2::6",
-      "kavlan-20": "2001:660:4406:3a0:508:2::6",
-      "kavlan-21": "2001:660:4406:6a0:508:2::6",
-      "kavlan-3": "2001:660:4406:582:8:2::6",
-      "kavlan-4": "2001:660:4406:590:8:2::6",
-      "kavlan-5": "2001:660:4406:591:8:2::6",
-      "kavlan-6": "2001:660:4406:592:8:2::6",
-      "kavlan-7": "2001:660:4406:593:8:2::6",
-      "kavlan-8": "2001:660:4406:594:8:2::6",
-      "kavlan-9": "2001:660:4406:595:8:2::6"
+      "kavlan-1": "2001:660:4406:580:8:2:0:6",
+      "kavlan-11": "2001:660:4406:1a0:508:2:0:6",
+      "kavlan-12": "2001:660:4406:2a0:508:2:0:6",
+      "kavlan-13": "2001:660:4406:4a0:508:2:0:6",
+      "kavlan-14": "2001:660:4406:5a0:508:2:0:6",
+      "kavlan-16": "2001:660:4406:7a0:508:2:0:6",
+      "kavlan-18": "2001:660:4406:8a0:508:2:0:6",
+      "kavlan-2": "2001:660:4406:581:8:2:0:6",
+      "kavlan-20": "2001:660:4406:3a0:508:2:0:6",
+      "kavlan-21": "2001:660:4406:6a0:508:2:0:6",
+      "kavlan-3": "2001:660:4406:582:8:2:0:6",
+      "kavlan-4": "2001:660:4406:590:8:2:0:6",
+      "kavlan-5": "2001:660:4406:591:8:2:0:6",
+      "kavlan-6": "2001:660:4406:592:8:2:0:6",
+      "kavlan-7": "2001:660:4406:593:8:2:0:6",
+      "kavlan-8": "2001:660:4406:594:8:2:0:6",
+      "kavlan-9": "2001:660:4406:595:8:2:0:6"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:8:3::6",
-      "kavlan-11": "2001:660:4406:1a0:508:3::6",
-      "kavlan-12": "2001:660:4406:2a0:508:3::6",
-      "kavlan-13": "2001:660:4406:4a0:508:3::6",
-      "kavlan-14": "2001:660:4406:5a0:508:3::6",
-      "kavlan-16": "2001:660:4406:7a0:508:3::6",
-      "kavlan-18": "2001:660:4406:8a0:508:3::6",
-      "kavlan-2": "2001:660:4406:581:8:3::6",
-      "kavlan-20": "2001:660:4406:3a0:508:3::6",
-      "kavlan-21": "2001:660:4406:6a0:508:3::6",
-      "kavlan-3": "2001:660:4406:582:8:3::6",
-      "kavlan-4": "2001:660:4406:590:8:3::6",
-      "kavlan-5": "2001:660:4406:591:8:3::6",
-      "kavlan-6": "2001:660:4406:592:8:3::6",
-      "kavlan-7": "2001:660:4406:593:8:3::6",
-      "kavlan-8": "2001:660:4406:594:8:3::6",
-      "kavlan-9": "2001:660:4406:595:8:3::6"
+      "kavlan-1": "2001:660:4406:580:8:3:0:6",
+      "kavlan-11": "2001:660:4406:1a0:508:3:0:6",
+      "kavlan-12": "2001:660:4406:2a0:508:3:0:6",
+      "kavlan-13": "2001:660:4406:4a0:508:3:0:6",
+      "kavlan-14": "2001:660:4406:5a0:508:3:0:6",
+      "kavlan-16": "2001:660:4406:7a0:508:3:0:6",
+      "kavlan-18": "2001:660:4406:8a0:508:3:0:6",
+      "kavlan-2": "2001:660:4406:581:8:3:0:6",
+      "kavlan-20": "2001:660:4406:3a0:508:3:0:6",
+      "kavlan-21": "2001:660:4406:6a0:508:3:0:6",
+      "kavlan-3": "2001:660:4406:582:8:3:0:6",
+      "kavlan-4": "2001:660:4406:590:8:3:0:6",
+      "kavlan-5": "2001:660:4406:591:8:3:0:6",
+      "kavlan-6": "2001:660:4406:592:8:3:0:6",
+      "kavlan-7": "2001:660:4406:593:8:3:0:6",
+      "kavlan-8": "2001:660:4406:594:8:3:0:6",
+      "kavlan-9": "2001:660:4406:595:8:3:0:6"
     }
   },
   "main_memory": {
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.6",
-      "ip6": "2001:660:4406:500:8:0::6",
+      "ip6": "2001:660:4406:500:8::6",
       "kavlan": true,
       "mac": "24:6e:96:02:a3:88",
       "management": false,
@@ -211,7 +211,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.56",
-      "ip6": "2001:660:4406:500:8:1::6",
+      "ip6": "2001:660:4406:500:8:1:0:6",
       "kavlan": true,
       "mac": "24:6e:96:02:a3:8a",
       "management": false,
@@ -233,7 +233,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.106",
-      "ip6": "2001:660:4406:500:8:2::6",
+      "ip6": "2001:660:4406:500:8:2:0:6",
       "kavlan": true,
       "mac": "a0:36:9f:7e:47:5c",
       "management": false,
@@ -255,7 +255,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.156",
-      "ip6": "2001:660:4406:500:8:3::6",
+      "ip6": "2001:660:4406:500:8:3:0:6",
       "kavlan": true,
       "mac": "a0:36:9f:7e:47:5e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-7.json b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-7.json
index 487aa7f26b45f352e4980edfedcb226dd811a35e..576aff16c7c15c8bdbb487c311428c7b0d6b3343 100644
--- a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-7.json
+++ b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-7.json
@@ -98,80 +98,80 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:8:0::7",
-      "kavlan-11": "2001:660:4406:1a0:508:0::7",
-      "kavlan-12": "2001:660:4406:2a0:508:0::7",
-      "kavlan-13": "2001:660:4406:4a0:508:0::7",
-      "kavlan-14": "2001:660:4406:5a0:508:0::7",
-      "kavlan-16": "2001:660:4406:7a0:508:0::7",
-      "kavlan-18": "2001:660:4406:8a0:508:0::7",
-      "kavlan-2": "2001:660:4406:581:8:0::7",
-      "kavlan-20": "2001:660:4406:3a0:508:0::7",
-      "kavlan-21": "2001:660:4406:6a0:508:0::7",
-      "kavlan-3": "2001:660:4406:582:8:0::7",
-      "kavlan-4": "2001:660:4406:590:8:0::7",
-      "kavlan-5": "2001:660:4406:591:8:0::7",
-      "kavlan-6": "2001:660:4406:592:8:0::7",
-      "kavlan-7": "2001:660:4406:593:8:0::7",
-      "kavlan-8": "2001:660:4406:594:8:0::7",
-      "kavlan-9": "2001:660:4406:595:8:0::7"
+      "kavlan-1": "2001:660:4406:580:8::7",
+      "kavlan-11": "2001:660:4406:1a0:508::7",
+      "kavlan-12": "2001:660:4406:2a0:508::7",
+      "kavlan-13": "2001:660:4406:4a0:508::7",
+      "kavlan-14": "2001:660:4406:5a0:508::7",
+      "kavlan-16": "2001:660:4406:7a0:508::7",
+      "kavlan-18": "2001:660:4406:8a0:508::7",
+      "kavlan-2": "2001:660:4406:581:8::7",
+      "kavlan-20": "2001:660:4406:3a0:508::7",
+      "kavlan-21": "2001:660:4406:6a0:508::7",
+      "kavlan-3": "2001:660:4406:582:8::7",
+      "kavlan-4": "2001:660:4406:590:8::7",
+      "kavlan-5": "2001:660:4406:591:8::7",
+      "kavlan-6": "2001:660:4406:592:8::7",
+      "kavlan-7": "2001:660:4406:593:8::7",
+      "kavlan-8": "2001:660:4406:594:8::7",
+      "kavlan-9": "2001:660:4406:595:8::7"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:8:1::7",
-      "kavlan-11": "2001:660:4406:1a0:508:1::7",
-      "kavlan-12": "2001:660:4406:2a0:508:1::7",
-      "kavlan-13": "2001:660:4406:4a0:508:1::7",
-      "kavlan-14": "2001:660:4406:5a0:508:1::7",
-      "kavlan-16": "2001:660:4406:7a0:508:1::7",
-      "kavlan-18": "2001:660:4406:8a0:508:1::7",
-      "kavlan-2": "2001:660:4406:581:8:1::7",
-      "kavlan-20": "2001:660:4406:3a0:508:1::7",
-      "kavlan-21": "2001:660:4406:6a0:508:1::7",
-      "kavlan-3": "2001:660:4406:582:8:1::7",
-      "kavlan-4": "2001:660:4406:590:8:1::7",
-      "kavlan-5": "2001:660:4406:591:8:1::7",
-      "kavlan-6": "2001:660:4406:592:8:1::7",
-      "kavlan-7": "2001:660:4406:593:8:1::7",
-      "kavlan-8": "2001:660:4406:594:8:1::7",
-      "kavlan-9": "2001:660:4406:595:8:1::7"
+      "kavlan-1": "2001:660:4406:580:8:1:0:7",
+      "kavlan-11": "2001:660:4406:1a0:508:1:0:7",
+      "kavlan-12": "2001:660:4406:2a0:508:1:0:7",
+      "kavlan-13": "2001:660:4406:4a0:508:1:0:7",
+      "kavlan-14": "2001:660:4406:5a0:508:1:0:7",
+      "kavlan-16": "2001:660:4406:7a0:508:1:0:7",
+      "kavlan-18": "2001:660:4406:8a0:508:1:0:7",
+      "kavlan-2": "2001:660:4406:581:8:1:0:7",
+      "kavlan-20": "2001:660:4406:3a0:508:1:0:7",
+      "kavlan-21": "2001:660:4406:6a0:508:1:0:7",
+      "kavlan-3": "2001:660:4406:582:8:1:0:7",
+      "kavlan-4": "2001:660:4406:590:8:1:0:7",
+      "kavlan-5": "2001:660:4406:591:8:1:0:7",
+      "kavlan-6": "2001:660:4406:592:8:1:0:7",
+      "kavlan-7": "2001:660:4406:593:8:1:0:7",
+      "kavlan-8": "2001:660:4406:594:8:1:0:7",
+      "kavlan-9": "2001:660:4406:595:8:1:0:7"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:8:2::7",
-      "kavlan-11": "2001:660:4406:1a0:508:2::7",
-      "kavlan-12": "2001:660:4406:2a0:508:2::7",
-      "kavlan-13": "2001:660:4406:4a0:508:2::7",
-      "kavlan-14": "2001:660:4406:5a0:508:2::7",
-      "kavlan-16": "2001:660:4406:7a0:508:2::7",
-      "kavlan-18": "2001:660:4406:8a0:508:2::7",
-      "kavlan-2": "2001:660:4406:581:8:2::7",
-      "kavlan-20": "2001:660:4406:3a0:508:2::7",
-      "kavlan-21": "2001:660:4406:6a0:508:2::7",
-      "kavlan-3": "2001:660:4406:582:8:2::7",
-      "kavlan-4": "2001:660:4406:590:8:2::7",
-      "kavlan-5": "2001:660:4406:591:8:2::7",
-      "kavlan-6": "2001:660:4406:592:8:2::7",
-      "kavlan-7": "2001:660:4406:593:8:2::7",
-      "kavlan-8": "2001:660:4406:594:8:2::7",
-      "kavlan-9": "2001:660:4406:595:8:2::7"
+      "kavlan-1": "2001:660:4406:580:8:2:0:7",
+      "kavlan-11": "2001:660:4406:1a0:508:2:0:7",
+      "kavlan-12": "2001:660:4406:2a0:508:2:0:7",
+      "kavlan-13": "2001:660:4406:4a0:508:2:0:7",
+      "kavlan-14": "2001:660:4406:5a0:508:2:0:7",
+      "kavlan-16": "2001:660:4406:7a0:508:2:0:7",
+      "kavlan-18": "2001:660:4406:8a0:508:2:0:7",
+      "kavlan-2": "2001:660:4406:581:8:2:0:7",
+      "kavlan-20": "2001:660:4406:3a0:508:2:0:7",
+      "kavlan-21": "2001:660:4406:6a0:508:2:0:7",
+      "kavlan-3": "2001:660:4406:582:8:2:0:7",
+      "kavlan-4": "2001:660:4406:590:8:2:0:7",
+      "kavlan-5": "2001:660:4406:591:8:2:0:7",
+      "kavlan-6": "2001:660:4406:592:8:2:0:7",
+      "kavlan-7": "2001:660:4406:593:8:2:0:7",
+      "kavlan-8": "2001:660:4406:594:8:2:0:7",
+      "kavlan-9": "2001:660:4406:595:8:2:0:7"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:8:3::7",
-      "kavlan-11": "2001:660:4406:1a0:508:3::7",
-      "kavlan-12": "2001:660:4406:2a0:508:3::7",
-      "kavlan-13": "2001:660:4406:4a0:508:3::7",
-      "kavlan-14": "2001:660:4406:5a0:508:3::7",
-      "kavlan-16": "2001:660:4406:7a0:508:3::7",
-      "kavlan-18": "2001:660:4406:8a0:508:3::7",
-      "kavlan-2": "2001:660:4406:581:8:3::7",
-      "kavlan-20": "2001:660:4406:3a0:508:3::7",
-      "kavlan-21": "2001:660:4406:6a0:508:3::7",
-      "kavlan-3": "2001:660:4406:582:8:3::7",
-      "kavlan-4": "2001:660:4406:590:8:3::7",
-      "kavlan-5": "2001:660:4406:591:8:3::7",
-      "kavlan-6": "2001:660:4406:592:8:3::7",
-      "kavlan-7": "2001:660:4406:593:8:3::7",
-      "kavlan-8": "2001:660:4406:594:8:3::7",
-      "kavlan-9": "2001:660:4406:595:8:3::7"
+      "kavlan-1": "2001:660:4406:580:8:3:0:7",
+      "kavlan-11": "2001:660:4406:1a0:508:3:0:7",
+      "kavlan-12": "2001:660:4406:2a0:508:3:0:7",
+      "kavlan-13": "2001:660:4406:4a0:508:3:0:7",
+      "kavlan-14": "2001:660:4406:5a0:508:3:0:7",
+      "kavlan-16": "2001:660:4406:7a0:508:3:0:7",
+      "kavlan-18": "2001:660:4406:8a0:508:3:0:7",
+      "kavlan-2": "2001:660:4406:581:8:3:0:7",
+      "kavlan-20": "2001:660:4406:3a0:508:3:0:7",
+      "kavlan-21": "2001:660:4406:6a0:508:3:0:7",
+      "kavlan-3": "2001:660:4406:582:8:3:0:7",
+      "kavlan-4": "2001:660:4406:590:8:3:0:7",
+      "kavlan-5": "2001:660:4406:591:8:3:0:7",
+      "kavlan-6": "2001:660:4406:592:8:3:0:7",
+      "kavlan-7": "2001:660:4406:593:8:3:0:7",
+      "kavlan-8": "2001:660:4406:594:8:3:0:7",
+      "kavlan-9": "2001:660:4406:595:8:3:0:7"
     }
   },
   "main_memory": {
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.7",
-      "ip6": "2001:660:4406:500:8:0::7",
+      "ip6": "2001:660:4406:500:8::7",
       "kavlan": true,
       "mac": "24:6e:96:02:a9:78",
       "management": false,
@@ -211,7 +211,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.57",
-      "ip6": "2001:660:4406:500:8:1::7",
+      "ip6": "2001:660:4406:500:8:1:0:7",
       "kavlan": true,
       "mac": "24:6e:96:02:a9:7a",
       "management": false,
@@ -233,7 +233,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.107",
-      "ip6": "2001:660:4406:500:8:2::7",
+      "ip6": "2001:660:4406:500:8:2:0:7",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:a4",
       "management": false,
@@ -255,7 +255,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.157",
-      "ip6": "2001:660:4406:500:8:3::7",
+      "ip6": "2001:660:4406:500:8:3:0:7",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:a6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-8.json b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-8.json
index b2901343bee12466e555b168941bf2e3435203f6..00e8f6403067f2d0fe6c9868ef6ef18579f29400 100644
--- a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-8.json
+++ b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-8.json
@@ -98,80 +98,80 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:8:0::8",
-      "kavlan-11": "2001:660:4406:1a0:508:0::8",
-      "kavlan-12": "2001:660:4406:2a0:508:0::8",
-      "kavlan-13": "2001:660:4406:4a0:508:0::8",
-      "kavlan-14": "2001:660:4406:5a0:508:0::8",
-      "kavlan-16": "2001:660:4406:7a0:508:0::8",
-      "kavlan-18": "2001:660:4406:8a0:508:0::8",
-      "kavlan-2": "2001:660:4406:581:8:0::8",
-      "kavlan-20": "2001:660:4406:3a0:508:0::8",
-      "kavlan-21": "2001:660:4406:6a0:508:0::8",
-      "kavlan-3": "2001:660:4406:582:8:0::8",
-      "kavlan-4": "2001:660:4406:590:8:0::8",
-      "kavlan-5": "2001:660:4406:591:8:0::8",
-      "kavlan-6": "2001:660:4406:592:8:0::8",
-      "kavlan-7": "2001:660:4406:593:8:0::8",
-      "kavlan-8": "2001:660:4406:594:8:0::8",
-      "kavlan-9": "2001:660:4406:595:8:0::8"
+      "kavlan-1": "2001:660:4406:580:8::8",
+      "kavlan-11": "2001:660:4406:1a0:508::8",
+      "kavlan-12": "2001:660:4406:2a0:508::8",
+      "kavlan-13": "2001:660:4406:4a0:508::8",
+      "kavlan-14": "2001:660:4406:5a0:508::8",
+      "kavlan-16": "2001:660:4406:7a0:508::8",
+      "kavlan-18": "2001:660:4406:8a0:508::8",
+      "kavlan-2": "2001:660:4406:581:8::8",
+      "kavlan-20": "2001:660:4406:3a0:508::8",
+      "kavlan-21": "2001:660:4406:6a0:508::8",
+      "kavlan-3": "2001:660:4406:582:8::8",
+      "kavlan-4": "2001:660:4406:590:8::8",
+      "kavlan-5": "2001:660:4406:591:8::8",
+      "kavlan-6": "2001:660:4406:592:8::8",
+      "kavlan-7": "2001:660:4406:593:8::8",
+      "kavlan-8": "2001:660:4406:594:8::8",
+      "kavlan-9": "2001:660:4406:595:8::8"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:8:1::8",
-      "kavlan-11": "2001:660:4406:1a0:508:1::8",
-      "kavlan-12": "2001:660:4406:2a0:508:1::8",
-      "kavlan-13": "2001:660:4406:4a0:508:1::8",
-      "kavlan-14": "2001:660:4406:5a0:508:1::8",
-      "kavlan-16": "2001:660:4406:7a0:508:1::8",
-      "kavlan-18": "2001:660:4406:8a0:508:1::8",
-      "kavlan-2": "2001:660:4406:581:8:1::8",
-      "kavlan-20": "2001:660:4406:3a0:508:1::8",
-      "kavlan-21": "2001:660:4406:6a0:508:1::8",
-      "kavlan-3": "2001:660:4406:582:8:1::8",
-      "kavlan-4": "2001:660:4406:590:8:1::8",
-      "kavlan-5": "2001:660:4406:591:8:1::8",
-      "kavlan-6": "2001:660:4406:592:8:1::8",
-      "kavlan-7": "2001:660:4406:593:8:1::8",
-      "kavlan-8": "2001:660:4406:594:8:1::8",
-      "kavlan-9": "2001:660:4406:595:8:1::8"
+      "kavlan-1": "2001:660:4406:580:8:1:0:8",
+      "kavlan-11": "2001:660:4406:1a0:508:1:0:8",
+      "kavlan-12": "2001:660:4406:2a0:508:1:0:8",
+      "kavlan-13": "2001:660:4406:4a0:508:1:0:8",
+      "kavlan-14": "2001:660:4406:5a0:508:1:0:8",
+      "kavlan-16": "2001:660:4406:7a0:508:1:0:8",
+      "kavlan-18": "2001:660:4406:8a0:508:1:0:8",
+      "kavlan-2": "2001:660:4406:581:8:1:0:8",
+      "kavlan-20": "2001:660:4406:3a0:508:1:0:8",
+      "kavlan-21": "2001:660:4406:6a0:508:1:0:8",
+      "kavlan-3": "2001:660:4406:582:8:1:0:8",
+      "kavlan-4": "2001:660:4406:590:8:1:0:8",
+      "kavlan-5": "2001:660:4406:591:8:1:0:8",
+      "kavlan-6": "2001:660:4406:592:8:1:0:8",
+      "kavlan-7": "2001:660:4406:593:8:1:0:8",
+      "kavlan-8": "2001:660:4406:594:8:1:0:8",
+      "kavlan-9": "2001:660:4406:595:8:1:0:8"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:8:2::8",
-      "kavlan-11": "2001:660:4406:1a0:508:2::8",
-      "kavlan-12": "2001:660:4406:2a0:508:2::8",
-      "kavlan-13": "2001:660:4406:4a0:508:2::8",
-      "kavlan-14": "2001:660:4406:5a0:508:2::8",
-      "kavlan-16": "2001:660:4406:7a0:508:2::8",
-      "kavlan-18": "2001:660:4406:8a0:508:2::8",
-      "kavlan-2": "2001:660:4406:581:8:2::8",
-      "kavlan-20": "2001:660:4406:3a0:508:2::8",
-      "kavlan-21": "2001:660:4406:6a0:508:2::8",
-      "kavlan-3": "2001:660:4406:582:8:2::8",
-      "kavlan-4": "2001:660:4406:590:8:2::8",
-      "kavlan-5": "2001:660:4406:591:8:2::8",
-      "kavlan-6": "2001:660:4406:592:8:2::8",
-      "kavlan-7": "2001:660:4406:593:8:2::8",
-      "kavlan-8": "2001:660:4406:594:8:2::8",
-      "kavlan-9": "2001:660:4406:595:8:2::8"
+      "kavlan-1": "2001:660:4406:580:8:2:0:8",
+      "kavlan-11": "2001:660:4406:1a0:508:2:0:8",
+      "kavlan-12": "2001:660:4406:2a0:508:2:0:8",
+      "kavlan-13": "2001:660:4406:4a0:508:2:0:8",
+      "kavlan-14": "2001:660:4406:5a0:508:2:0:8",
+      "kavlan-16": "2001:660:4406:7a0:508:2:0:8",
+      "kavlan-18": "2001:660:4406:8a0:508:2:0:8",
+      "kavlan-2": "2001:660:4406:581:8:2:0:8",
+      "kavlan-20": "2001:660:4406:3a0:508:2:0:8",
+      "kavlan-21": "2001:660:4406:6a0:508:2:0:8",
+      "kavlan-3": "2001:660:4406:582:8:2:0:8",
+      "kavlan-4": "2001:660:4406:590:8:2:0:8",
+      "kavlan-5": "2001:660:4406:591:8:2:0:8",
+      "kavlan-6": "2001:660:4406:592:8:2:0:8",
+      "kavlan-7": "2001:660:4406:593:8:2:0:8",
+      "kavlan-8": "2001:660:4406:594:8:2:0:8",
+      "kavlan-9": "2001:660:4406:595:8:2:0:8"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:8:3::8",
-      "kavlan-11": "2001:660:4406:1a0:508:3::8",
-      "kavlan-12": "2001:660:4406:2a0:508:3::8",
-      "kavlan-13": "2001:660:4406:4a0:508:3::8",
-      "kavlan-14": "2001:660:4406:5a0:508:3::8",
-      "kavlan-16": "2001:660:4406:7a0:508:3::8",
-      "kavlan-18": "2001:660:4406:8a0:508:3::8",
-      "kavlan-2": "2001:660:4406:581:8:3::8",
-      "kavlan-20": "2001:660:4406:3a0:508:3::8",
-      "kavlan-21": "2001:660:4406:6a0:508:3::8",
-      "kavlan-3": "2001:660:4406:582:8:3::8",
-      "kavlan-4": "2001:660:4406:590:8:3::8",
-      "kavlan-5": "2001:660:4406:591:8:3::8",
-      "kavlan-6": "2001:660:4406:592:8:3::8",
-      "kavlan-7": "2001:660:4406:593:8:3::8",
-      "kavlan-8": "2001:660:4406:594:8:3::8",
-      "kavlan-9": "2001:660:4406:595:8:3::8"
+      "kavlan-1": "2001:660:4406:580:8:3:0:8",
+      "kavlan-11": "2001:660:4406:1a0:508:3:0:8",
+      "kavlan-12": "2001:660:4406:2a0:508:3:0:8",
+      "kavlan-13": "2001:660:4406:4a0:508:3:0:8",
+      "kavlan-14": "2001:660:4406:5a0:508:3:0:8",
+      "kavlan-16": "2001:660:4406:7a0:508:3:0:8",
+      "kavlan-18": "2001:660:4406:8a0:508:3:0:8",
+      "kavlan-2": "2001:660:4406:581:8:3:0:8",
+      "kavlan-20": "2001:660:4406:3a0:508:3:0:8",
+      "kavlan-21": "2001:660:4406:6a0:508:3:0:8",
+      "kavlan-3": "2001:660:4406:582:8:3:0:8",
+      "kavlan-4": "2001:660:4406:590:8:3:0:8",
+      "kavlan-5": "2001:660:4406:591:8:3:0:8",
+      "kavlan-6": "2001:660:4406:592:8:3:0:8",
+      "kavlan-7": "2001:660:4406:593:8:3:0:8",
+      "kavlan-8": "2001:660:4406:594:8:3:0:8",
+      "kavlan-9": "2001:660:4406:595:8:3:0:8"
     }
   },
   "main_memory": {
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.8",
-      "ip6": "2001:660:4406:500:8:0::8",
+      "ip6": "2001:660:4406:500:8::8",
       "kavlan": true,
       "mac": "24:6e:96:02:a0:88",
       "management": false,
@@ -211,7 +211,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.58",
-      "ip6": "2001:660:4406:500:8:1::8",
+      "ip6": "2001:660:4406:500:8:1:0:8",
       "kavlan": true,
       "mac": "24:6e:96:02:a0:8a",
       "management": false,
@@ -233,7 +233,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.108",
-      "ip6": "2001:660:4406:500:8:2::8",
+      "ip6": "2001:660:4406:500:8:2:0:8",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4a:54",
       "management": false,
@@ -255,7 +255,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.158",
-      "ip6": "2001:660:4406:500:8:3::8",
+      "ip6": "2001:660:4406:500:8:3:0:8",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4a:56",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-1.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-1.json
index 75f43f21049be0302c64875e624e48c3ad3efa5c..62db69cf0c3a025399dd91bb43657bd2567b3044 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-1.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-1.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::1",
-      "kavlan-11": "2001:660:4406:1a0:509:0::1",
-      "kavlan-12": "2001:660:4406:2a0:509:0::1",
-      "kavlan-13": "2001:660:4406:4a0:509:0::1",
-      "kavlan-14": "2001:660:4406:5a0:509:0::1",
-      "kavlan-16": "2001:660:4406:7a0:509:0::1",
-      "kavlan-18": "2001:660:4406:8a0:509:0::1",
-      "kavlan-2": "2001:660:4406:581:9:0::1",
-      "kavlan-20": "2001:660:4406:3a0:509:0::1",
-      "kavlan-21": "2001:660:4406:6a0:509:0::1",
-      "kavlan-3": "2001:660:4406:582:9:0::1",
-      "kavlan-4": "2001:660:4406:590:9:0::1",
-      "kavlan-5": "2001:660:4406:591:9:0::1",
-      "kavlan-6": "2001:660:4406:592:9:0::1",
-      "kavlan-7": "2001:660:4406:593:9:0::1",
-      "kavlan-8": "2001:660:4406:594:9:0::1",
-      "kavlan-9": "2001:660:4406:595:9:0::1"
+      "kavlan-1": "2001:660:4406:580:9::1",
+      "kavlan-11": "2001:660:4406:1a0:509::1",
+      "kavlan-12": "2001:660:4406:2a0:509::1",
+      "kavlan-13": "2001:660:4406:4a0:509::1",
+      "kavlan-14": "2001:660:4406:5a0:509::1",
+      "kavlan-16": "2001:660:4406:7a0:509::1",
+      "kavlan-18": "2001:660:4406:8a0:509::1",
+      "kavlan-2": "2001:660:4406:581:9::1",
+      "kavlan-20": "2001:660:4406:3a0:509::1",
+      "kavlan-21": "2001:660:4406:6a0:509::1",
+      "kavlan-3": "2001:660:4406:582:9::1",
+      "kavlan-4": "2001:660:4406:590:9::1",
+      "kavlan-5": "2001:660:4406:591:9::1",
+      "kavlan-6": "2001:660:4406:592:9::1",
+      "kavlan-7": "2001:660:4406:593:9::1",
+      "kavlan-8": "2001:660:4406:594:9::1",
+      "kavlan-9": "2001:660:4406:595:9::1"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::1",
-      "kavlan-11": "2001:660:4406:1a0:509:1::1",
-      "kavlan-12": "2001:660:4406:2a0:509:1::1",
-      "kavlan-13": "2001:660:4406:4a0:509:1::1",
-      "kavlan-14": "2001:660:4406:5a0:509:1::1",
-      "kavlan-16": "2001:660:4406:7a0:509:1::1",
-      "kavlan-18": "2001:660:4406:8a0:509:1::1",
-      "kavlan-2": "2001:660:4406:581:9:1::1",
-      "kavlan-20": "2001:660:4406:3a0:509:1::1",
-      "kavlan-21": "2001:660:4406:6a0:509:1::1",
-      "kavlan-3": "2001:660:4406:582:9:1::1",
-      "kavlan-4": "2001:660:4406:590:9:1::1",
-      "kavlan-5": "2001:660:4406:591:9:1::1",
-      "kavlan-6": "2001:660:4406:592:9:1::1",
-      "kavlan-7": "2001:660:4406:593:9:1::1",
-      "kavlan-8": "2001:660:4406:594:9:1::1",
-      "kavlan-9": "2001:660:4406:595:9:1::1"
+      "kavlan-1": "2001:660:4406:580:9:1:0:1",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:1",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:1",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:1",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:1",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:1",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:1",
+      "kavlan-2": "2001:660:4406:581:9:1:0:1",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:1",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:1",
+      "kavlan-3": "2001:660:4406:582:9:1:0:1",
+      "kavlan-4": "2001:660:4406:590:9:1:0:1",
+      "kavlan-5": "2001:660:4406:591:9:1:0:1",
+      "kavlan-6": "2001:660:4406:592:9:1:0:1",
+      "kavlan-7": "2001:660:4406:593:9:1:0:1",
+      "kavlan-8": "2001:660:4406:594:9:1:0:1",
+      "kavlan-9": "2001:660:4406:595:9:1:0:1"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::1",
-      "kavlan-11": "2001:660:4406:1a0:509:2::1",
-      "kavlan-12": "2001:660:4406:2a0:509:2::1",
-      "kavlan-13": "2001:660:4406:4a0:509:2::1",
-      "kavlan-14": "2001:660:4406:5a0:509:2::1",
-      "kavlan-16": "2001:660:4406:7a0:509:2::1",
-      "kavlan-18": "2001:660:4406:8a0:509:2::1",
-      "kavlan-2": "2001:660:4406:581:9:2::1",
-      "kavlan-20": "2001:660:4406:3a0:509:2::1",
-      "kavlan-21": "2001:660:4406:6a0:509:2::1",
-      "kavlan-3": "2001:660:4406:582:9:2::1",
-      "kavlan-4": "2001:660:4406:590:9:2::1",
-      "kavlan-5": "2001:660:4406:591:9:2::1",
-      "kavlan-6": "2001:660:4406:592:9:2::1",
-      "kavlan-7": "2001:660:4406:593:9:2::1",
-      "kavlan-8": "2001:660:4406:594:9:2::1",
-      "kavlan-9": "2001:660:4406:595:9:2::1"
+      "kavlan-1": "2001:660:4406:580:9:2:0:1",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:1",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:1",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:1",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:1",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:1",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:1",
+      "kavlan-2": "2001:660:4406:581:9:2:0:1",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:1",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:1",
+      "kavlan-3": "2001:660:4406:582:9:2:0:1",
+      "kavlan-4": "2001:660:4406:590:9:2:0:1",
+      "kavlan-5": "2001:660:4406:591:9:2:0:1",
+      "kavlan-6": "2001:660:4406:592:9:2:0:1",
+      "kavlan-7": "2001:660:4406:593:9:2:0:1",
+      "kavlan-8": "2001:660:4406:594:9:2:0:1",
+      "kavlan-9": "2001:660:4406:595:9:2:0:1"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::1",
-      "kavlan-11": "2001:660:4406:1a0:509:3::1",
-      "kavlan-12": "2001:660:4406:2a0:509:3::1",
-      "kavlan-13": "2001:660:4406:4a0:509:3::1",
-      "kavlan-14": "2001:660:4406:5a0:509:3::1",
-      "kavlan-16": "2001:660:4406:7a0:509:3::1",
-      "kavlan-18": "2001:660:4406:8a0:509:3::1",
-      "kavlan-2": "2001:660:4406:581:9:3::1",
-      "kavlan-20": "2001:660:4406:3a0:509:3::1",
-      "kavlan-21": "2001:660:4406:6a0:509:3::1",
-      "kavlan-3": "2001:660:4406:582:9:3::1",
-      "kavlan-4": "2001:660:4406:590:9:3::1",
-      "kavlan-5": "2001:660:4406:591:9:3::1",
-      "kavlan-6": "2001:660:4406:592:9:3::1",
-      "kavlan-7": "2001:660:4406:593:9:3::1",
-      "kavlan-8": "2001:660:4406:594:9:3::1",
-      "kavlan-9": "2001:660:4406:595:9:3::1"
+      "kavlan-1": "2001:660:4406:580:9:3:0:1",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:1",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:1",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:1",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:1",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:1",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:1",
+      "kavlan-2": "2001:660:4406:581:9:3:0:1",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:1",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:1",
+      "kavlan-3": "2001:660:4406:582:9:3:0:1",
+      "kavlan-4": "2001:660:4406:590:9:3:0:1",
+      "kavlan-5": "2001:660:4406:591:9:3:0:1",
+      "kavlan-6": "2001:660:4406:592:9:3:0:1",
+      "kavlan-7": "2001:660:4406:593:9:3:0:1",
+      "kavlan-8": "2001:660:4406:594:9:3:0:1",
+      "kavlan-9": "2001:660:4406:595:9:3:0:1"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::1",
-      "kavlan-11": "2001:660:4406:1a0:509:4::1",
-      "kavlan-12": "2001:660:4406:2a0:509:4::1",
-      "kavlan-13": "2001:660:4406:4a0:509:4::1",
-      "kavlan-14": "2001:660:4406:5a0:509:4::1",
-      "kavlan-16": "2001:660:4406:7a0:509:4::1",
-      "kavlan-18": "2001:660:4406:8a0:509:4::1",
-      "kavlan-2": "2001:660:4406:581:9:4::1",
-      "kavlan-20": "2001:660:4406:3a0:509:4::1",
-      "kavlan-21": "2001:660:4406:6a0:509:4::1",
-      "kavlan-3": "2001:660:4406:582:9:4::1",
-      "kavlan-4": "2001:660:4406:590:9:4::1",
-      "kavlan-5": "2001:660:4406:591:9:4::1",
-      "kavlan-6": "2001:660:4406:592:9:4::1",
-      "kavlan-7": "2001:660:4406:593:9:4::1",
-      "kavlan-8": "2001:660:4406:594:9:4::1",
-      "kavlan-9": "2001:660:4406:595:9:4::1"
+      "kavlan-1": "2001:660:4406:580:9:4:0:1",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:1",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:1",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:1",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:1",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:1",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:1",
+      "kavlan-2": "2001:660:4406:581:9:4:0:1",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:1",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:1",
+      "kavlan-3": "2001:660:4406:582:9:4:0:1",
+      "kavlan-4": "2001:660:4406:590:9:4:0:1",
+      "kavlan-5": "2001:660:4406:591:9:4:0:1",
+      "kavlan-6": "2001:660:4406:592:9:4:0:1",
+      "kavlan-7": "2001:660:4406:593:9:4:0:1",
+      "kavlan-8": "2001:660:4406:594:9:4:0:1",
+      "kavlan-9": "2001:660:4406:595:9:4:0:1"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.1",
-      "ip6": "2001:660:4406:500:9:0::1",
+      "ip6": "2001:660:4406:500:9::1",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:60",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.101",
-      "ip6": "2001:660:4406:500:9:1::1",
+      "ip6": "2001:660:4406:500:9:1:0:1",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:62",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.201",
-      "ip6": "2001:660:4406:500:9:2::1",
+      "ip6": "2001:660:4406:500:9:2:0:1",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:64",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.101",
-      "ip6": "2001:660:4406:500:9:3::1",
+      "ip6": "2001:660:4406:500:9:3:0:1",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:66",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.201",
-      "ip6": "2001:660:4406:500:9:4::1",
+      "ip6": "2001:660:4406:500:9:4:0:1",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:64",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-10.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-10.json
index bd1ae30c5155d04d7014a4aee2cbe779a9dfe135..295771686cbc528e2952e3b59aebb13dd1b77bbe 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-10.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-10.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::a",
-      "kavlan-11": "2001:660:4406:1a0:509:0::a",
-      "kavlan-12": "2001:660:4406:2a0:509:0::a",
-      "kavlan-13": "2001:660:4406:4a0:509:0::a",
-      "kavlan-14": "2001:660:4406:5a0:509:0::a",
-      "kavlan-16": "2001:660:4406:7a0:509:0::a",
-      "kavlan-18": "2001:660:4406:8a0:509:0::a",
-      "kavlan-2": "2001:660:4406:581:9:0::a",
-      "kavlan-20": "2001:660:4406:3a0:509:0::a",
-      "kavlan-21": "2001:660:4406:6a0:509:0::a",
-      "kavlan-3": "2001:660:4406:582:9:0::a",
-      "kavlan-4": "2001:660:4406:590:9:0::a",
-      "kavlan-5": "2001:660:4406:591:9:0::a",
-      "kavlan-6": "2001:660:4406:592:9:0::a",
-      "kavlan-7": "2001:660:4406:593:9:0::a",
-      "kavlan-8": "2001:660:4406:594:9:0::a",
-      "kavlan-9": "2001:660:4406:595:9:0::a"
+      "kavlan-1": "2001:660:4406:580:9::a",
+      "kavlan-11": "2001:660:4406:1a0:509::a",
+      "kavlan-12": "2001:660:4406:2a0:509::a",
+      "kavlan-13": "2001:660:4406:4a0:509::a",
+      "kavlan-14": "2001:660:4406:5a0:509::a",
+      "kavlan-16": "2001:660:4406:7a0:509::a",
+      "kavlan-18": "2001:660:4406:8a0:509::a",
+      "kavlan-2": "2001:660:4406:581:9::a",
+      "kavlan-20": "2001:660:4406:3a0:509::a",
+      "kavlan-21": "2001:660:4406:6a0:509::a",
+      "kavlan-3": "2001:660:4406:582:9::a",
+      "kavlan-4": "2001:660:4406:590:9::a",
+      "kavlan-5": "2001:660:4406:591:9::a",
+      "kavlan-6": "2001:660:4406:592:9::a",
+      "kavlan-7": "2001:660:4406:593:9::a",
+      "kavlan-8": "2001:660:4406:594:9::a",
+      "kavlan-9": "2001:660:4406:595:9::a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::a",
-      "kavlan-11": "2001:660:4406:1a0:509:1::a",
-      "kavlan-12": "2001:660:4406:2a0:509:1::a",
-      "kavlan-13": "2001:660:4406:4a0:509:1::a",
-      "kavlan-14": "2001:660:4406:5a0:509:1::a",
-      "kavlan-16": "2001:660:4406:7a0:509:1::a",
-      "kavlan-18": "2001:660:4406:8a0:509:1::a",
-      "kavlan-2": "2001:660:4406:581:9:1::a",
-      "kavlan-20": "2001:660:4406:3a0:509:1::a",
-      "kavlan-21": "2001:660:4406:6a0:509:1::a",
-      "kavlan-3": "2001:660:4406:582:9:1::a",
-      "kavlan-4": "2001:660:4406:590:9:1::a",
-      "kavlan-5": "2001:660:4406:591:9:1::a",
-      "kavlan-6": "2001:660:4406:592:9:1::a",
-      "kavlan-7": "2001:660:4406:593:9:1::a",
-      "kavlan-8": "2001:660:4406:594:9:1::a",
-      "kavlan-9": "2001:660:4406:595:9:1::a"
+      "kavlan-1": "2001:660:4406:580:9:1:0:a",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:a",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:a",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:a",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:a",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:a",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:a",
+      "kavlan-2": "2001:660:4406:581:9:1:0:a",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:a",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:a",
+      "kavlan-3": "2001:660:4406:582:9:1:0:a",
+      "kavlan-4": "2001:660:4406:590:9:1:0:a",
+      "kavlan-5": "2001:660:4406:591:9:1:0:a",
+      "kavlan-6": "2001:660:4406:592:9:1:0:a",
+      "kavlan-7": "2001:660:4406:593:9:1:0:a",
+      "kavlan-8": "2001:660:4406:594:9:1:0:a",
+      "kavlan-9": "2001:660:4406:595:9:1:0:a"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::a",
-      "kavlan-11": "2001:660:4406:1a0:509:2::a",
-      "kavlan-12": "2001:660:4406:2a0:509:2::a",
-      "kavlan-13": "2001:660:4406:4a0:509:2::a",
-      "kavlan-14": "2001:660:4406:5a0:509:2::a",
-      "kavlan-16": "2001:660:4406:7a0:509:2::a",
-      "kavlan-18": "2001:660:4406:8a0:509:2::a",
-      "kavlan-2": "2001:660:4406:581:9:2::a",
-      "kavlan-20": "2001:660:4406:3a0:509:2::a",
-      "kavlan-21": "2001:660:4406:6a0:509:2::a",
-      "kavlan-3": "2001:660:4406:582:9:2::a",
-      "kavlan-4": "2001:660:4406:590:9:2::a",
-      "kavlan-5": "2001:660:4406:591:9:2::a",
-      "kavlan-6": "2001:660:4406:592:9:2::a",
-      "kavlan-7": "2001:660:4406:593:9:2::a",
-      "kavlan-8": "2001:660:4406:594:9:2::a",
-      "kavlan-9": "2001:660:4406:595:9:2::a"
+      "kavlan-1": "2001:660:4406:580:9:2:0:a",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:a",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:a",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:a",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:a",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:a",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:a",
+      "kavlan-2": "2001:660:4406:581:9:2:0:a",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:a",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:a",
+      "kavlan-3": "2001:660:4406:582:9:2:0:a",
+      "kavlan-4": "2001:660:4406:590:9:2:0:a",
+      "kavlan-5": "2001:660:4406:591:9:2:0:a",
+      "kavlan-6": "2001:660:4406:592:9:2:0:a",
+      "kavlan-7": "2001:660:4406:593:9:2:0:a",
+      "kavlan-8": "2001:660:4406:594:9:2:0:a",
+      "kavlan-9": "2001:660:4406:595:9:2:0:a"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::a",
-      "kavlan-11": "2001:660:4406:1a0:509:3::a",
-      "kavlan-12": "2001:660:4406:2a0:509:3::a",
-      "kavlan-13": "2001:660:4406:4a0:509:3::a",
-      "kavlan-14": "2001:660:4406:5a0:509:3::a",
-      "kavlan-16": "2001:660:4406:7a0:509:3::a",
-      "kavlan-18": "2001:660:4406:8a0:509:3::a",
-      "kavlan-2": "2001:660:4406:581:9:3::a",
-      "kavlan-20": "2001:660:4406:3a0:509:3::a",
-      "kavlan-21": "2001:660:4406:6a0:509:3::a",
-      "kavlan-3": "2001:660:4406:582:9:3::a",
-      "kavlan-4": "2001:660:4406:590:9:3::a",
-      "kavlan-5": "2001:660:4406:591:9:3::a",
-      "kavlan-6": "2001:660:4406:592:9:3::a",
-      "kavlan-7": "2001:660:4406:593:9:3::a",
-      "kavlan-8": "2001:660:4406:594:9:3::a",
-      "kavlan-9": "2001:660:4406:595:9:3::a"
+      "kavlan-1": "2001:660:4406:580:9:3:0:a",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:a",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:a",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:a",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:a",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:a",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:a",
+      "kavlan-2": "2001:660:4406:581:9:3:0:a",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:a",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:a",
+      "kavlan-3": "2001:660:4406:582:9:3:0:a",
+      "kavlan-4": "2001:660:4406:590:9:3:0:a",
+      "kavlan-5": "2001:660:4406:591:9:3:0:a",
+      "kavlan-6": "2001:660:4406:592:9:3:0:a",
+      "kavlan-7": "2001:660:4406:593:9:3:0:a",
+      "kavlan-8": "2001:660:4406:594:9:3:0:a",
+      "kavlan-9": "2001:660:4406:595:9:3:0:a"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::a",
-      "kavlan-11": "2001:660:4406:1a0:509:4::a",
-      "kavlan-12": "2001:660:4406:2a0:509:4::a",
-      "kavlan-13": "2001:660:4406:4a0:509:4::a",
-      "kavlan-14": "2001:660:4406:5a0:509:4::a",
-      "kavlan-16": "2001:660:4406:7a0:509:4::a",
-      "kavlan-18": "2001:660:4406:8a0:509:4::a",
-      "kavlan-2": "2001:660:4406:581:9:4::a",
-      "kavlan-20": "2001:660:4406:3a0:509:4::a",
-      "kavlan-21": "2001:660:4406:6a0:509:4::a",
-      "kavlan-3": "2001:660:4406:582:9:4::a",
-      "kavlan-4": "2001:660:4406:590:9:4::a",
-      "kavlan-5": "2001:660:4406:591:9:4::a",
-      "kavlan-6": "2001:660:4406:592:9:4::a",
-      "kavlan-7": "2001:660:4406:593:9:4::a",
-      "kavlan-8": "2001:660:4406:594:9:4::a",
-      "kavlan-9": "2001:660:4406:595:9:4::a"
+      "kavlan-1": "2001:660:4406:580:9:4:0:a",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:a",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:a",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:a",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:a",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:a",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:a",
+      "kavlan-2": "2001:660:4406:581:9:4:0:a",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:a",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:a",
+      "kavlan-3": "2001:660:4406:582:9:4:0:a",
+      "kavlan-4": "2001:660:4406:590:9:4:0:a",
+      "kavlan-5": "2001:660:4406:591:9:4:0:a",
+      "kavlan-6": "2001:660:4406:592:9:4:0:a",
+      "kavlan-7": "2001:660:4406:593:9:4:0:a",
+      "kavlan-8": "2001:660:4406:594:9:4:0:a",
+      "kavlan-9": "2001:660:4406:595:9:4:0:a"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.10",
-      "ip6": "2001:660:4406:500:9:0::a",
+      "ip6": "2001:660:4406:500:9::a",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:38",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.110",
-      "ip6": "2001:660:4406:500:9:1::a",
+      "ip6": "2001:660:4406:500:9:1:0:a",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:3a",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.210",
-      "ip6": "2001:660:4406:500:9:2::a",
+      "ip6": "2001:660:4406:500:9:2:0:a",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:e8",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.110",
-      "ip6": "2001:660:4406:500:9:3::a",
+      "ip6": "2001:660:4406:500:9:3:0:a",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:ea",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.210",
-      "ip6": "2001:660:4406:500:9:4::a",
+      "ip6": "2001:660:4406:500:9:4:0:a",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:3c",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-11.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-11.json
index 9c9ccab355c023cd2b63c6b60826913f95b51b81..114d5b151b597e38d6edc3e4e287f9840fb99293 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-11.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-11.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::b",
-      "kavlan-11": "2001:660:4406:1a0:509:0::b",
-      "kavlan-12": "2001:660:4406:2a0:509:0::b",
-      "kavlan-13": "2001:660:4406:4a0:509:0::b",
-      "kavlan-14": "2001:660:4406:5a0:509:0::b",
-      "kavlan-16": "2001:660:4406:7a0:509:0::b",
-      "kavlan-18": "2001:660:4406:8a0:509:0::b",
-      "kavlan-2": "2001:660:4406:581:9:0::b",
-      "kavlan-20": "2001:660:4406:3a0:509:0::b",
-      "kavlan-21": "2001:660:4406:6a0:509:0::b",
-      "kavlan-3": "2001:660:4406:582:9:0::b",
-      "kavlan-4": "2001:660:4406:590:9:0::b",
-      "kavlan-5": "2001:660:4406:591:9:0::b",
-      "kavlan-6": "2001:660:4406:592:9:0::b",
-      "kavlan-7": "2001:660:4406:593:9:0::b",
-      "kavlan-8": "2001:660:4406:594:9:0::b",
-      "kavlan-9": "2001:660:4406:595:9:0::b"
+      "kavlan-1": "2001:660:4406:580:9::b",
+      "kavlan-11": "2001:660:4406:1a0:509::b",
+      "kavlan-12": "2001:660:4406:2a0:509::b",
+      "kavlan-13": "2001:660:4406:4a0:509::b",
+      "kavlan-14": "2001:660:4406:5a0:509::b",
+      "kavlan-16": "2001:660:4406:7a0:509::b",
+      "kavlan-18": "2001:660:4406:8a0:509::b",
+      "kavlan-2": "2001:660:4406:581:9::b",
+      "kavlan-20": "2001:660:4406:3a0:509::b",
+      "kavlan-21": "2001:660:4406:6a0:509::b",
+      "kavlan-3": "2001:660:4406:582:9::b",
+      "kavlan-4": "2001:660:4406:590:9::b",
+      "kavlan-5": "2001:660:4406:591:9::b",
+      "kavlan-6": "2001:660:4406:592:9::b",
+      "kavlan-7": "2001:660:4406:593:9::b",
+      "kavlan-8": "2001:660:4406:594:9::b",
+      "kavlan-9": "2001:660:4406:595:9::b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::b",
-      "kavlan-11": "2001:660:4406:1a0:509:1::b",
-      "kavlan-12": "2001:660:4406:2a0:509:1::b",
-      "kavlan-13": "2001:660:4406:4a0:509:1::b",
-      "kavlan-14": "2001:660:4406:5a0:509:1::b",
-      "kavlan-16": "2001:660:4406:7a0:509:1::b",
-      "kavlan-18": "2001:660:4406:8a0:509:1::b",
-      "kavlan-2": "2001:660:4406:581:9:1::b",
-      "kavlan-20": "2001:660:4406:3a0:509:1::b",
-      "kavlan-21": "2001:660:4406:6a0:509:1::b",
-      "kavlan-3": "2001:660:4406:582:9:1::b",
-      "kavlan-4": "2001:660:4406:590:9:1::b",
-      "kavlan-5": "2001:660:4406:591:9:1::b",
-      "kavlan-6": "2001:660:4406:592:9:1::b",
-      "kavlan-7": "2001:660:4406:593:9:1::b",
-      "kavlan-8": "2001:660:4406:594:9:1::b",
-      "kavlan-9": "2001:660:4406:595:9:1::b"
+      "kavlan-1": "2001:660:4406:580:9:1:0:b",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:b",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:b",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:b",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:b",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:b",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:b",
+      "kavlan-2": "2001:660:4406:581:9:1:0:b",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:b",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:b",
+      "kavlan-3": "2001:660:4406:582:9:1:0:b",
+      "kavlan-4": "2001:660:4406:590:9:1:0:b",
+      "kavlan-5": "2001:660:4406:591:9:1:0:b",
+      "kavlan-6": "2001:660:4406:592:9:1:0:b",
+      "kavlan-7": "2001:660:4406:593:9:1:0:b",
+      "kavlan-8": "2001:660:4406:594:9:1:0:b",
+      "kavlan-9": "2001:660:4406:595:9:1:0:b"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::b",
-      "kavlan-11": "2001:660:4406:1a0:509:2::b",
-      "kavlan-12": "2001:660:4406:2a0:509:2::b",
-      "kavlan-13": "2001:660:4406:4a0:509:2::b",
-      "kavlan-14": "2001:660:4406:5a0:509:2::b",
-      "kavlan-16": "2001:660:4406:7a0:509:2::b",
-      "kavlan-18": "2001:660:4406:8a0:509:2::b",
-      "kavlan-2": "2001:660:4406:581:9:2::b",
-      "kavlan-20": "2001:660:4406:3a0:509:2::b",
-      "kavlan-21": "2001:660:4406:6a0:509:2::b",
-      "kavlan-3": "2001:660:4406:582:9:2::b",
-      "kavlan-4": "2001:660:4406:590:9:2::b",
-      "kavlan-5": "2001:660:4406:591:9:2::b",
-      "kavlan-6": "2001:660:4406:592:9:2::b",
-      "kavlan-7": "2001:660:4406:593:9:2::b",
-      "kavlan-8": "2001:660:4406:594:9:2::b",
-      "kavlan-9": "2001:660:4406:595:9:2::b"
+      "kavlan-1": "2001:660:4406:580:9:2:0:b",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:b",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:b",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:b",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:b",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:b",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:b",
+      "kavlan-2": "2001:660:4406:581:9:2:0:b",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:b",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:b",
+      "kavlan-3": "2001:660:4406:582:9:2:0:b",
+      "kavlan-4": "2001:660:4406:590:9:2:0:b",
+      "kavlan-5": "2001:660:4406:591:9:2:0:b",
+      "kavlan-6": "2001:660:4406:592:9:2:0:b",
+      "kavlan-7": "2001:660:4406:593:9:2:0:b",
+      "kavlan-8": "2001:660:4406:594:9:2:0:b",
+      "kavlan-9": "2001:660:4406:595:9:2:0:b"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::b",
-      "kavlan-11": "2001:660:4406:1a0:509:3::b",
-      "kavlan-12": "2001:660:4406:2a0:509:3::b",
-      "kavlan-13": "2001:660:4406:4a0:509:3::b",
-      "kavlan-14": "2001:660:4406:5a0:509:3::b",
-      "kavlan-16": "2001:660:4406:7a0:509:3::b",
-      "kavlan-18": "2001:660:4406:8a0:509:3::b",
-      "kavlan-2": "2001:660:4406:581:9:3::b",
-      "kavlan-20": "2001:660:4406:3a0:509:3::b",
-      "kavlan-21": "2001:660:4406:6a0:509:3::b",
-      "kavlan-3": "2001:660:4406:582:9:3::b",
-      "kavlan-4": "2001:660:4406:590:9:3::b",
-      "kavlan-5": "2001:660:4406:591:9:3::b",
-      "kavlan-6": "2001:660:4406:592:9:3::b",
-      "kavlan-7": "2001:660:4406:593:9:3::b",
-      "kavlan-8": "2001:660:4406:594:9:3::b",
-      "kavlan-9": "2001:660:4406:595:9:3::b"
+      "kavlan-1": "2001:660:4406:580:9:3:0:b",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:b",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:b",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:b",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:b",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:b",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:b",
+      "kavlan-2": "2001:660:4406:581:9:3:0:b",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:b",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:b",
+      "kavlan-3": "2001:660:4406:582:9:3:0:b",
+      "kavlan-4": "2001:660:4406:590:9:3:0:b",
+      "kavlan-5": "2001:660:4406:591:9:3:0:b",
+      "kavlan-6": "2001:660:4406:592:9:3:0:b",
+      "kavlan-7": "2001:660:4406:593:9:3:0:b",
+      "kavlan-8": "2001:660:4406:594:9:3:0:b",
+      "kavlan-9": "2001:660:4406:595:9:3:0:b"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::b",
-      "kavlan-11": "2001:660:4406:1a0:509:4::b",
-      "kavlan-12": "2001:660:4406:2a0:509:4::b",
-      "kavlan-13": "2001:660:4406:4a0:509:4::b",
-      "kavlan-14": "2001:660:4406:5a0:509:4::b",
-      "kavlan-16": "2001:660:4406:7a0:509:4::b",
-      "kavlan-18": "2001:660:4406:8a0:509:4::b",
-      "kavlan-2": "2001:660:4406:581:9:4::b",
-      "kavlan-20": "2001:660:4406:3a0:509:4::b",
-      "kavlan-21": "2001:660:4406:6a0:509:4::b",
-      "kavlan-3": "2001:660:4406:582:9:4::b",
-      "kavlan-4": "2001:660:4406:590:9:4::b",
-      "kavlan-5": "2001:660:4406:591:9:4::b",
-      "kavlan-6": "2001:660:4406:592:9:4::b",
-      "kavlan-7": "2001:660:4406:593:9:4::b",
-      "kavlan-8": "2001:660:4406:594:9:4::b",
-      "kavlan-9": "2001:660:4406:595:9:4::b"
+      "kavlan-1": "2001:660:4406:580:9:4:0:b",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:b",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:b",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:b",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:b",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:b",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:b",
+      "kavlan-2": "2001:660:4406:581:9:4:0:b",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:b",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:b",
+      "kavlan-3": "2001:660:4406:582:9:4:0:b",
+      "kavlan-4": "2001:660:4406:590:9:4:0:b",
+      "kavlan-5": "2001:660:4406:591:9:4:0:b",
+      "kavlan-6": "2001:660:4406:592:9:4:0:b",
+      "kavlan-7": "2001:660:4406:593:9:4:0:b",
+      "kavlan-8": "2001:660:4406:594:9:4:0:b",
+      "kavlan-9": "2001:660:4406:595:9:4:0:b"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.11",
-      "ip6": "2001:660:4406:500:9:0::b",
+      "ip6": "2001:660:4406:500:9::b",
       "kavlan": true,
       "mac": "24:6e:96:03:0e:b8",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.111",
-      "ip6": "2001:660:4406:500:9:1::b",
+      "ip6": "2001:660:4406:500:9:1:0:b",
       "kavlan": true,
       "mac": "24:6e:96:03:0e:ba",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.211",
-      "ip6": "2001:660:4406:500:9:2::b",
+      "ip6": "2001:660:4406:500:9:2:0:b",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:48",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.111",
-      "ip6": "2001:660:4406:500:9:3::b",
+      "ip6": "2001:660:4406:500:9:3:0:b",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:4a",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.211",
-      "ip6": "2001:660:4406:500:9:4::b",
+      "ip6": "2001:660:4406:500:9:4:0:b",
       "kavlan": true,
       "mac": "24:6e:96:03:0e:bc",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-12.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-12.json
index f99b8834675e29bd79b7cfde4b3b60b41fa69533..bdce419f9968bcc5ac331fae4efb9747ecce3f77 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-12.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-12.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::c",
-      "kavlan-11": "2001:660:4406:1a0:509:0::c",
-      "kavlan-12": "2001:660:4406:2a0:509:0::c",
-      "kavlan-13": "2001:660:4406:4a0:509:0::c",
-      "kavlan-14": "2001:660:4406:5a0:509:0::c",
-      "kavlan-16": "2001:660:4406:7a0:509:0::c",
-      "kavlan-18": "2001:660:4406:8a0:509:0::c",
-      "kavlan-2": "2001:660:4406:581:9:0::c",
-      "kavlan-20": "2001:660:4406:3a0:509:0::c",
-      "kavlan-21": "2001:660:4406:6a0:509:0::c",
-      "kavlan-3": "2001:660:4406:582:9:0::c",
-      "kavlan-4": "2001:660:4406:590:9:0::c",
-      "kavlan-5": "2001:660:4406:591:9:0::c",
-      "kavlan-6": "2001:660:4406:592:9:0::c",
-      "kavlan-7": "2001:660:4406:593:9:0::c",
-      "kavlan-8": "2001:660:4406:594:9:0::c",
-      "kavlan-9": "2001:660:4406:595:9:0::c"
+      "kavlan-1": "2001:660:4406:580:9::c",
+      "kavlan-11": "2001:660:4406:1a0:509::c",
+      "kavlan-12": "2001:660:4406:2a0:509::c",
+      "kavlan-13": "2001:660:4406:4a0:509::c",
+      "kavlan-14": "2001:660:4406:5a0:509::c",
+      "kavlan-16": "2001:660:4406:7a0:509::c",
+      "kavlan-18": "2001:660:4406:8a0:509::c",
+      "kavlan-2": "2001:660:4406:581:9::c",
+      "kavlan-20": "2001:660:4406:3a0:509::c",
+      "kavlan-21": "2001:660:4406:6a0:509::c",
+      "kavlan-3": "2001:660:4406:582:9::c",
+      "kavlan-4": "2001:660:4406:590:9::c",
+      "kavlan-5": "2001:660:4406:591:9::c",
+      "kavlan-6": "2001:660:4406:592:9::c",
+      "kavlan-7": "2001:660:4406:593:9::c",
+      "kavlan-8": "2001:660:4406:594:9::c",
+      "kavlan-9": "2001:660:4406:595:9::c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::c",
-      "kavlan-11": "2001:660:4406:1a0:509:1::c",
-      "kavlan-12": "2001:660:4406:2a0:509:1::c",
-      "kavlan-13": "2001:660:4406:4a0:509:1::c",
-      "kavlan-14": "2001:660:4406:5a0:509:1::c",
-      "kavlan-16": "2001:660:4406:7a0:509:1::c",
-      "kavlan-18": "2001:660:4406:8a0:509:1::c",
-      "kavlan-2": "2001:660:4406:581:9:1::c",
-      "kavlan-20": "2001:660:4406:3a0:509:1::c",
-      "kavlan-21": "2001:660:4406:6a0:509:1::c",
-      "kavlan-3": "2001:660:4406:582:9:1::c",
-      "kavlan-4": "2001:660:4406:590:9:1::c",
-      "kavlan-5": "2001:660:4406:591:9:1::c",
-      "kavlan-6": "2001:660:4406:592:9:1::c",
-      "kavlan-7": "2001:660:4406:593:9:1::c",
-      "kavlan-8": "2001:660:4406:594:9:1::c",
-      "kavlan-9": "2001:660:4406:595:9:1::c"
+      "kavlan-1": "2001:660:4406:580:9:1:0:c",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:c",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:c",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:c",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:c",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:c",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:c",
+      "kavlan-2": "2001:660:4406:581:9:1:0:c",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:c",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:c",
+      "kavlan-3": "2001:660:4406:582:9:1:0:c",
+      "kavlan-4": "2001:660:4406:590:9:1:0:c",
+      "kavlan-5": "2001:660:4406:591:9:1:0:c",
+      "kavlan-6": "2001:660:4406:592:9:1:0:c",
+      "kavlan-7": "2001:660:4406:593:9:1:0:c",
+      "kavlan-8": "2001:660:4406:594:9:1:0:c",
+      "kavlan-9": "2001:660:4406:595:9:1:0:c"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::c",
-      "kavlan-11": "2001:660:4406:1a0:509:2::c",
-      "kavlan-12": "2001:660:4406:2a0:509:2::c",
-      "kavlan-13": "2001:660:4406:4a0:509:2::c",
-      "kavlan-14": "2001:660:4406:5a0:509:2::c",
-      "kavlan-16": "2001:660:4406:7a0:509:2::c",
-      "kavlan-18": "2001:660:4406:8a0:509:2::c",
-      "kavlan-2": "2001:660:4406:581:9:2::c",
-      "kavlan-20": "2001:660:4406:3a0:509:2::c",
-      "kavlan-21": "2001:660:4406:6a0:509:2::c",
-      "kavlan-3": "2001:660:4406:582:9:2::c",
-      "kavlan-4": "2001:660:4406:590:9:2::c",
-      "kavlan-5": "2001:660:4406:591:9:2::c",
-      "kavlan-6": "2001:660:4406:592:9:2::c",
-      "kavlan-7": "2001:660:4406:593:9:2::c",
-      "kavlan-8": "2001:660:4406:594:9:2::c",
-      "kavlan-9": "2001:660:4406:595:9:2::c"
+      "kavlan-1": "2001:660:4406:580:9:2:0:c",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:c",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:c",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:c",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:c",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:c",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:c",
+      "kavlan-2": "2001:660:4406:581:9:2:0:c",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:c",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:c",
+      "kavlan-3": "2001:660:4406:582:9:2:0:c",
+      "kavlan-4": "2001:660:4406:590:9:2:0:c",
+      "kavlan-5": "2001:660:4406:591:9:2:0:c",
+      "kavlan-6": "2001:660:4406:592:9:2:0:c",
+      "kavlan-7": "2001:660:4406:593:9:2:0:c",
+      "kavlan-8": "2001:660:4406:594:9:2:0:c",
+      "kavlan-9": "2001:660:4406:595:9:2:0:c"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::c",
-      "kavlan-11": "2001:660:4406:1a0:509:3::c",
-      "kavlan-12": "2001:660:4406:2a0:509:3::c",
-      "kavlan-13": "2001:660:4406:4a0:509:3::c",
-      "kavlan-14": "2001:660:4406:5a0:509:3::c",
-      "kavlan-16": "2001:660:4406:7a0:509:3::c",
-      "kavlan-18": "2001:660:4406:8a0:509:3::c",
-      "kavlan-2": "2001:660:4406:581:9:3::c",
-      "kavlan-20": "2001:660:4406:3a0:509:3::c",
-      "kavlan-21": "2001:660:4406:6a0:509:3::c",
-      "kavlan-3": "2001:660:4406:582:9:3::c",
-      "kavlan-4": "2001:660:4406:590:9:3::c",
-      "kavlan-5": "2001:660:4406:591:9:3::c",
-      "kavlan-6": "2001:660:4406:592:9:3::c",
-      "kavlan-7": "2001:660:4406:593:9:3::c",
-      "kavlan-8": "2001:660:4406:594:9:3::c",
-      "kavlan-9": "2001:660:4406:595:9:3::c"
+      "kavlan-1": "2001:660:4406:580:9:3:0:c",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:c",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:c",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:c",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:c",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:c",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:c",
+      "kavlan-2": "2001:660:4406:581:9:3:0:c",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:c",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:c",
+      "kavlan-3": "2001:660:4406:582:9:3:0:c",
+      "kavlan-4": "2001:660:4406:590:9:3:0:c",
+      "kavlan-5": "2001:660:4406:591:9:3:0:c",
+      "kavlan-6": "2001:660:4406:592:9:3:0:c",
+      "kavlan-7": "2001:660:4406:593:9:3:0:c",
+      "kavlan-8": "2001:660:4406:594:9:3:0:c",
+      "kavlan-9": "2001:660:4406:595:9:3:0:c"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::c",
-      "kavlan-11": "2001:660:4406:1a0:509:4::c",
-      "kavlan-12": "2001:660:4406:2a0:509:4::c",
-      "kavlan-13": "2001:660:4406:4a0:509:4::c",
-      "kavlan-14": "2001:660:4406:5a0:509:4::c",
-      "kavlan-16": "2001:660:4406:7a0:509:4::c",
-      "kavlan-18": "2001:660:4406:8a0:509:4::c",
-      "kavlan-2": "2001:660:4406:581:9:4::c",
-      "kavlan-20": "2001:660:4406:3a0:509:4::c",
-      "kavlan-21": "2001:660:4406:6a0:509:4::c",
-      "kavlan-3": "2001:660:4406:582:9:4::c",
-      "kavlan-4": "2001:660:4406:590:9:4::c",
-      "kavlan-5": "2001:660:4406:591:9:4::c",
-      "kavlan-6": "2001:660:4406:592:9:4::c",
-      "kavlan-7": "2001:660:4406:593:9:4::c",
-      "kavlan-8": "2001:660:4406:594:9:4::c",
-      "kavlan-9": "2001:660:4406:595:9:4::c"
+      "kavlan-1": "2001:660:4406:580:9:4:0:c",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:c",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:c",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:c",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:c",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:c",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:c",
+      "kavlan-2": "2001:660:4406:581:9:4:0:c",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:c",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:c",
+      "kavlan-3": "2001:660:4406:582:9:4:0:c",
+      "kavlan-4": "2001:660:4406:590:9:4:0:c",
+      "kavlan-5": "2001:660:4406:591:9:4:0:c",
+      "kavlan-6": "2001:660:4406:592:9:4:0:c",
+      "kavlan-7": "2001:660:4406:593:9:4:0:c",
+      "kavlan-8": "2001:660:4406:594:9:4:0:c",
+      "kavlan-9": "2001:660:4406:595:9:4:0:c"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.12",
-      "ip6": "2001:660:4406:500:9:0::c",
+      "ip6": "2001:660:4406:500:9::c",
       "kavlan": true,
       "mac": "24:6e:96:bd:52:b8",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.112",
-      "ip6": "2001:660:4406:500:9:1::c",
+      "ip6": "2001:660:4406:500:9:1:0:c",
       "kavlan": true,
       "mac": "24:6e:96:bd:52:ba",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.212",
-      "ip6": "2001:660:4406:500:9:2::c",
+      "ip6": "2001:660:4406:500:9:2:0:c",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:f0",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.112",
-      "ip6": "2001:660:4406:500:9:3::c",
+      "ip6": "2001:660:4406:500:9:3:0:c",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:f2",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.212",
-      "ip6": "2001:660:4406:500:9:4::c",
+      "ip6": "2001:660:4406:500:9:4:0:c",
       "kavlan": true,
       "mac": "24:6e:96:bd:52:bc",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-13.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-13.json
index 4221b6db9b7ae8adeb45709bd37748cbc96ea8d7..72573d4e9a88d8aa4a9dc6e3932e840f7faaeacc 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-13.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-13.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::d",
-      "kavlan-11": "2001:660:4406:1a0:509:0::d",
-      "kavlan-12": "2001:660:4406:2a0:509:0::d",
-      "kavlan-13": "2001:660:4406:4a0:509:0::d",
-      "kavlan-14": "2001:660:4406:5a0:509:0::d",
-      "kavlan-16": "2001:660:4406:7a0:509:0::d",
-      "kavlan-18": "2001:660:4406:8a0:509:0::d",
-      "kavlan-2": "2001:660:4406:581:9:0::d",
-      "kavlan-20": "2001:660:4406:3a0:509:0::d",
-      "kavlan-21": "2001:660:4406:6a0:509:0::d",
-      "kavlan-3": "2001:660:4406:582:9:0::d",
-      "kavlan-4": "2001:660:4406:590:9:0::d",
-      "kavlan-5": "2001:660:4406:591:9:0::d",
-      "kavlan-6": "2001:660:4406:592:9:0::d",
-      "kavlan-7": "2001:660:4406:593:9:0::d",
-      "kavlan-8": "2001:660:4406:594:9:0::d",
-      "kavlan-9": "2001:660:4406:595:9:0::d"
+      "kavlan-1": "2001:660:4406:580:9::d",
+      "kavlan-11": "2001:660:4406:1a0:509::d",
+      "kavlan-12": "2001:660:4406:2a0:509::d",
+      "kavlan-13": "2001:660:4406:4a0:509::d",
+      "kavlan-14": "2001:660:4406:5a0:509::d",
+      "kavlan-16": "2001:660:4406:7a0:509::d",
+      "kavlan-18": "2001:660:4406:8a0:509::d",
+      "kavlan-2": "2001:660:4406:581:9::d",
+      "kavlan-20": "2001:660:4406:3a0:509::d",
+      "kavlan-21": "2001:660:4406:6a0:509::d",
+      "kavlan-3": "2001:660:4406:582:9::d",
+      "kavlan-4": "2001:660:4406:590:9::d",
+      "kavlan-5": "2001:660:4406:591:9::d",
+      "kavlan-6": "2001:660:4406:592:9::d",
+      "kavlan-7": "2001:660:4406:593:9::d",
+      "kavlan-8": "2001:660:4406:594:9::d",
+      "kavlan-9": "2001:660:4406:595:9::d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::d",
-      "kavlan-11": "2001:660:4406:1a0:509:1::d",
-      "kavlan-12": "2001:660:4406:2a0:509:1::d",
-      "kavlan-13": "2001:660:4406:4a0:509:1::d",
-      "kavlan-14": "2001:660:4406:5a0:509:1::d",
-      "kavlan-16": "2001:660:4406:7a0:509:1::d",
-      "kavlan-18": "2001:660:4406:8a0:509:1::d",
-      "kavlan-2": "2001:660:4406:581:9:1::d",
-      "kavlan-20": "2001:660:4406:3a0:509:1::d",
-      "kavlan-21": "2001:660:4406:6a0:509:1::d",
-      "kavlan-3": "2001:660:4406:582:9:1::d",
-      "kavlan-4": "2001:660:4406:590:9:1::d",
-      "kavlan-5": "2001:660:4406:591:9:1::d",
-      "kavlan-6": "2001:660:4406:592:9:1::d",
-      "kavlan-7": "2001:660:4406:593:9:1::d",
-      "kavlan-8": "2001:660:4406:594:9:1::d",
-      "kavlan-9": "2001:660:4406:595:9:1::d"
+      "kavlan-1": "2001:660:4406:580:9:1:0:d",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:d",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:d",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:d",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:d",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:d",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:d",
+      "kavlan-2": "2001:660:4406:581:9:1:0:d",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:d",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:d",
+      "kavlan-3": "2001:660:4406:582:9:1:0:d",
+      "kavlan-4": "2001:660:4406:590:9:1:0:d",
+      "kavlan-5": "2001:660:4406:591:9:1:0:d",
+      "kavlan-6": "2001:660:4406:592:9:1:0:d",
+      "kavlan-7": "2001:660:4406:593:9:1:0:d",
+      "kavlan-8": "2001:660:4406:594:9:1:0:d",
+      "kavlan-9": "2001:660:4406:595:9:1:0:d"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::d",
-      "kavlan-11": "2001:660:4406:1a0:509:2::d",
-      "kavlan-12": "2001:660:4406:2a0:509:2::d",
-      "kavlan-13": "2001:660:4406:4a0:509:2::d",
-      "kavlan-14": "2001:660:4406:5a0:509:2::d",
-      "kavlan-16": "2001:660:4406:7a0:509:2::d",
-      "kavlan-18": "2001:660:4406:8a0:509:2::d",
-      "kavlan-2": "2001:660:4406:581:9:2::d",
-      "kavlan-20": "2001:660:4406:3a0:509:2::d",
-      "kavlan-21": "2001:660:4406:6a0:509:2::d",
-      "kavlan-3": "2001:660:4406:582:9:2::d",
-      "kavlan-4": "2001:660:4406:590:9:2::d",
-      "kavlan-5": "2001:660:4406:591:9:2::d",
-      "kavlan-6": "2001:660:4406:592:9:2::d",
-      "kavlan-7": "2001:660:4406:593:9:2::d",
-      "kavlan-8": "2001:660:4406:594:9:2::d",
-      "kavlan-9": "2001:660:4406:595:9:2::d"
+      "kavlan-1": "2001:660:4406:580:9:2:0:d",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:d",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:d",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:d",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:d",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:d",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:d",
+      "kavlan-2": "2001:660:4406:581:9:2:0:d",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:d",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:d",
+      "kavlan-3": "2001:660:4406:582:9:2:0:d",
+      "kavlan-4": "2001:660:4406:590:9:2:0:d",
+      "kavlan-5": "2001:660:4406:591:9:2:0:d",
+      "kavlan-6": "2001:660:4406:592:9:2:0:d",
+      "kavlan-7": "2001:660:4406:593:9:2:0:d",
+      "kavlan-8": "2001:660:4406:594:9:2:0:d",
+      "kavlan-9": "2001:660:4406:595:9:2:0:d"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::d",
-      "kavlan-11": "2001:660:4406:1a0:509:3::d",
-      "kavlan-12": "2001:660:4406:2a0:509:3::d",
-      "kavlan-13": "2001:660:4406:4a0:509:3::d",
-      "kavlan-14": "2001:660:4406:5a0:509:3::d",
-      "kavlan-16": "2001:660:4406:7a0:509:3::d",
-      "kavlan-18": "2001:660:4406:8a0:509:3::d",
-      "kavlan-2": "2001:660:4406:581:9:3::d",
-      "kavlan-20": "2001:660:4406:3a0:509:3::d",
-      "kavlan-21": "2001:660:4406:6a0:509:3::d",
-      "kavlan-3": "2001:660:4406:582:9:3::d",
-      "kavlan-4": "2001:660:4406:590:9:3::d",
-      "kavlan-5": "2001:660:4406:591:9:3::d",
-      "kavlan-6": "2001:660:4406:592:9:3::d",
-      "kavlan-7": "2001:660:4406:593:9:3::d",
-      "kavlan-8": "2001:660:4406:594:9:3::d",
-      "kavlan-9": "2001:660:4406:595:9:3::d"
+      "kavlan-1": "2001:660:4406:580:9:3:0:d",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:d",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:d",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:d",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:d",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:d",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:d",
+      "kavlan-2": "2001:660:4406:581:9:3:0:d",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:d",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:d",
+      "kavlan-3": "2001:660:4406:582:9:3:0:d",
+      "kavlan-4": "2001:660:4406:590:9:3:0:d",
+      "kavlan-5": "2001:660:4406:591:9:3:0:d",
+      "kavlan-6": "2001:660:4406:592:9:3:0:d",
+      "kavlan-7": "2001:660:4406:593:9:3:0:d",
+      "kavlan-8": "2001:660:4406:594:9:3:0:d",
+      "kavlan-9": "2001:660:4406:595:9:3:0:d"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::d",
-      "kavlan-11": "2001:660:4406:1a0:509:4::d",
-      "kavlan-12": "2001:660:4406:2a0:509:4::d",
-      "kavlan-13": "2001:660:4406:4a0:509:4::d",
-      "kavlan-14": "2001:660:4406:5a0:509:4::d",
-      "kavlan-16": "2001:660:4406:7a0:509:4::d",
-      "kavlan-18": "2001:660:4406:8a0:509:4::d",
-      "kavlan-2": "2001:660:4406:581:9:4::d",
-      "kavlan-20": "2001:660:4406:3a0:509:4::d",
-      "kavlan-21": "2001:660:4406:6a0:509:4::d",
-      "kavlan-3": "2001:660:4406:582:9:4::d",
-      "kavlan-4": "2001:660:4406:590:9:4::d",
-      "kavlan-5": "2001:660:4406:591:9:4::d",
-      "kavlan-6": "2001:660:4406:592:9:4::d",
-      "kavlan-7": "2001:660:4406:593:9:4::d",
-      "kavlan-8": "2001:660:4406:594:9:4::d",
-      "kavlan-9": "2001:660:4406:595:9:4::d"
+      "kavlan-1": "2001:660:4406:580:9:4:0:d",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:d",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:d",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:d",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:d",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:d",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:d",
+      "kavlan-2": "2001:660:4406:581:9:4:0:d",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:d",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:d",
+      "kavlan-3": "2001:660:4406:582:9:4:0:d",
+      "kavlan-4": "2001:660:4406:590:9:4:0:d",
+      "kavlan-5": "2001:660:4406:591:9:4:0:d",
+      "kavlan-6": "2001:660:4406:592:9:4:0:d",
+      "kavlan-7": "2001:660:4406:593:9:4:0:d",
+      "kavlan-8": "2001:660:4406:594:9:4:0:d",
+      "kavlan-9": "2001:660:4406:595:9:4:0:d"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.13",
-      "ip6": "2001:660:4406:500:9:0::d",
+      "ip6": "2001:660:4406:500:9::d",
       "kavlan": true,
       "mac": "24:6e:96:03:11:90",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.113",
-      "ip6": "2001:660:4406:500:9:1::d",
+      "ip6": "2001:660:4406:500:9:1:0:d",
       "kavlan": true,
       "mac": "24:6e:96:03:11:92",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.213",
-      "ip6": "2001:660:4406:500:9:2::d",
+      "ip6": "2001:660:4406:500:9:2:0:d",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:f8",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.113",
-      "ip6": "2001:660:4406:500:9:3::d",
+      "ip6": "2001:660:4406:500:9:3:0:d",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:fa",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.213",
-      "ip6": "2001:660:4406:500:9:4::d",
+      "ip6": "2001:660:4406:500:9:4:0:d",
       "kavlan": true,
       "mac": "24:6e:96:03:11:94",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-14.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-14.json
index 7024fc6f11a65a3b38fd72d2caad1a8bee0a2619..89b1766e9b706c0e7e53f9e2ad850898279aefb0 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-14.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-14.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::e",
-      "kavlan-11": "2001:660:4406:1a0:509:0::e",
-      "kavlan-12": "2001:660:4406:2a0:509:0::e",
-      "kavlan-13": "2001:660:4406:4a0:509:0::e",
-      "kavlan-14": "2001:660:4406:5a0:509:0::e",
-      "kavlan-16": "2001:660:4406:7a0:509:0::e",
-      "kavlan-18": "2001:660:4406:8a0:509:0::e",
-      "kavlan-2": "2001:660:4406:581:9:0::e",
-      "kavlan-20": "2001:660:4406:3a0:509:0::e",
-      "kavlan-21": "2001:660:4406:6a0:509:0::e",
-      "kavlan-3": "2001:660:4406:582:9:0::e",
-      "kavlan-4": "2001:660:4406:590:9:0::e",
-      "kavlan-5": "2001:660:4406:591:9:0::e",
-      "kavlan-6": "2001:660:4406:592:9:0::e",
-      "kavlan-7": "2001:660:4406:593:9:0::e",
-      "kavlan-8": "2001:660:4406:594:9:0::e",
-      "kavlan-9": "2001:660:4406:595:9:0::e"
+      "kavlan-1": "2001:660:4406:580:9::e",
+      "kavlan-11": "2001:660:4406:1a0:509::e",
+      "kavlan-12": "2001:660:4406:2a0:509::e",
+      "kavlan-13": "2001:660:4406:4a0:509::e",
+      "kavlan-14": "2001:660:4406:5a0:509::e",
+      "kavlan-16": "2001:660:4406:7a0:509::e",
+      "kavlan-18": "2001:660:4406:8a0:509::e",
+      "kavlan-2": "2001:660:4406:581:9::e",
+      "kavlan-20": "2001:660:4406:3a0:509::e",
+      "kavlan-21": "2001:660:4406:6a0:509::e",
+      "kavlan-3": "2001:660:4406:582:9::e",
+      "kavlan-4": "2001:660:4406:590:9::e",
+      "kavlan-5": "2001:660:4406:591:9::e",
+      "kavlan-6": "2001:660:4406:592:9::e",
+      "kavlan-7": "2001:660:4406:593:9::e",
+      "kavlan-8": "2001:660:4406:594:9::e",
+      "kavlan-9": "2001:660:4406:595:9::e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::e",
-      "kavlan-11": "2001:660:4406:1a0:509:1::e",
-      "kavlan-12": "2001:660:4406:2a0:509:1::e",
-      "kavlan-13": "2001:660:4406:4a0:509:1::e",
-      "kavlan-14": "2001:660:4406:5a0:509:1::e",
-      "kavlan-16": "2001:660:4406:7a0:509:1::e",
-      "kavlan-18": "2001:660:4406:8a0:509:1::e",
-      "kavlan-2": "2001:660:4406:581:9:1::e",
-      "kavlan-20": "2001:660:4406:3a0:509:1::e",
-      "kavlan-21": "2001:660:4406:6a0:509:1::e",
-      "kavlan-3": "2001:660:4406:582:9:1::e",
-      "kavlan-4": "2001:660:4406:590:9:1::e",
-      "kavlan-5": "2001:660:4406:591:9:1::e",
-      "kavlan-6": "2001:660:4406:592:9:1::e",
-      "kavlan-7": "2001:660:4406:593:9:1::e",
-      "kavlan-8": "2001:660:4406:594:9:1::e",
-      "kavlan-9": "2001:660:4406:595:9:1::e"
+      "kavlan-1": "2001:660:4406:580:9:1:0:e",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:e",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:e",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:e",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:e",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:e",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:e",
+      "kavlan-2": "2001:660:4406:581:9:1:0:e",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:e",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:e",
+      "kavlan-3": "2001:660:4406:582:9:1:0:e",
+      "kavlan-4": "2001:660:4406:590:9:1:0:e",
+      "kavlan-5": "2001:660:4406:591:9:1:0:e",
+      "kavlan-6": "2001:660:4406:592:9:1:0:e",
+      "kavlan-7": "2001:660:4406:593:9:1:0:e",
+      "kavlan-8": "2001:660:4406:594:9:1:0:e",
+      "kavlan-9": "2001:660:4406:595:9:1:0:e"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::e",
-      "kavlan-11": "2001:660:4406:1a0:509:2::e",
-      "kavlan-12": "2001:660:4406:2a0:509:2::e",
-      "kavlan-13": "2001:660:4406:4a0:509:2::e",
-      "kavlan-14": "2001:660:4406:5a0:509:2::e",
-      "kavlan-16": "2001:660:4406:7a0:509:2::e",
-      "kavlan-18": "2001:660:4406:8a0:509:2::e",
-      "kavlan-2": "2001:660:4406:581:9:2::e",
-      "kavlan-20": "2001:660:4406:3a0:509:2::e",
-      "kavlan-21": "2001:660:4406:6a0:509:2::e",
-      "kavlan-3": "2001:660:4406:582:9:2::e",
-      "kavlan-4": "2001:660:4406:590:9:2::e",
-      "kavlan-5": "2001:660:4406:591:9:2::e",
-      "kavlan-6": "2001:660:4406:592:9:2::e",
-      "kavlan-7": "2001:660:4406:593:9:2::e",
-      "kavlan-8": "2001:660:4406:594:9:2::e",
-      "kavlan-9": "2001:660:4406:595:9:2::e"
+      "kavlan-1": "2001:660:4406:580:9:2:0:e",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:e",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:e",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:e",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:e",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:e",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:e",
+      "kavlan-2": "2001:660:4406:581:9:2:0:e",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:e",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:e",
+      "kavlan-3": "2001:660:4406:582:9:2:0:e",
+      "kavlan-4": "2001:660:4406:590:9:2:0:e",
+      "kavlan-5": "2001:660:4406:591:9:2:0:e",
+      "kavlan-6": "2001:660:4406:592:9:2:0:e",
+      "kavlan-7": "2001:660:4406:593:9:2:0:e",
+      "kavlan-8": "2001:660:4406:594:9:2:0:e",
+      "kavlan-9": "2001:660:4406:595:9:2:0:e"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::e",
-      "kavlan-11": "2001:660:4406:1a0:509:3::e",
-      "kavlan-12": "2001:660:4406:2a0:509:3::e",
-      "kavlan-13": "2001:660:4406:4a0:509:3::e",
-      "kavlan-14": "2001:660:4406:5a0:509:3::e",
-      "kavlan-16": "2001:660:4406:7a0:509:3::e",
-      "kavlan-18": "2001:660:4406:8a0:509:3::e",
-      "kavlan-2": "2001:660:4406:581:9:3::e",
-      "kavlan-20": "2001:660:4406:3a0:509:3::e",
-      "kavlan-21": "2001:660:4406:6a0:509:3::e",
-      "kavlan-3": "2001:660:4406:582:9:3::e",
-      "kavlan-4": "2001:660:4406:590:9:3::e",
-      "kavlan-5": "2001:660:4406:591:9:3::e",
-      "kavlan-6": "2001:660:4406:592:9:3::e",
-      "kavlan-7": "2001:660:4406:593:9:3::e",
-      "kavlan-8": "2001:660:4406:594:9:3::e",
-      "kavlan-9": "2001:660:4406:595:9:3::e"
+      "kavlan-1": "2001:660:4406:580:9:3:0:e",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:e",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:e",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:e",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:e",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:e",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:e",
+      "kavlan-2": "2001:660:4406:581:9:3:0:e",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:e",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:e",
+      "kavlan-3": "2001:660:4406:582:9:3:0:e",
+      "kavlan-4": "2001:660:4406:590:9:3:0:e",
+      "kavlan-5": "2001:660:4406:591:9:3:0:e",
+      "kavlan-6": "2001:660:4406:592:9:3:0:e",
+      "kavlan-7": "2001:660:4406:593:9:3:0:e",
+      "kavlan-8": "2001:660:4406:594:9:3:0:e",
+      "kavlan-9": "2001:660:4406:595:9:3:0:e"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::e",
-      "kavlan-11": "2001:660:4406:1a0:509:4::e",
-      "kavlan-12": "2001:660:4406:2a0:509:4::e",
-      "kavlan-13": "2001:660:4406:4a0:509:4::e",
-      "kavlan-14": "2001:660:4406:5a0:509:4::e",
-      "kavlan-16": "2001:660:4406:7a0:509:4::e",
-      "kavlan-18": "2001:660:4406:8a0:509:4::e",
-      "kavlan-2": "2001:660:4406:581:9:4::e",
-      "kavlan-20": "2001:660:4406:3a0:509:4::e",
-      "kavlan-21": "2001:660:4406:6a0:509:4::e",
-      "kavlan-3": "2001:660:4406:582:9:4::e",
-      "kavlan-4": "2001:660:4406:590:9:4::e",
-      "kavlan-5": "2001:660:4406:591:9:4::e",
-      "kavlan-6": "2001:660:4406:592:9:4::e",
-      "kavlan-7": "2001:660:4406:593:9:4::e",
-      "kavlan-8": "2001:660:4406:594:9:4::e",
-      "kavlan-9": "2001:660:4406:595:9:4::e"
+      "kavlan-1": "2001:660:4406:580:9:4:0:e",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:e",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:e",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:e",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:e",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:e",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:e",
+      "kavlan-2": "2001:660:4406:581:9:4:0:e",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:e",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:e",
+      "kavlan-3": "2001:660:4406:582:9:4:0:e",
+      "kavlan-4": "2001:660:4406:590:9:4:0:e",
+      "kavlan-5": "2001:660:4406:591:9:4:0:e",
+      "kavlan-6": "2001:660:4406:592:9:4:0:e",
+      "kavlan-7": "2001:660:4406:593:9:4:0:e",
+      "kavlan-8": "2001:660:4406:594:9:4:0:e",
+      "kavlan-9": "2001:660:4406:595:9:4:0:e"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.14",
-      "ip6": "2001:660:4406:500:9:0::e",
+      "ip6": "2001:660:4406:500:9::e",
       "kavlan": true,
       "mac": "24:6e:96:02:a3:e0",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.114",
-      "ip6": "2001:660:4406:500:9:1::e",
+      "ip6": "2001:660:4406:500:9:1:0:e",
       "kavlan": true,
       "mac": "24:6e:96:02:a3:e2",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.214",
-      "ip6": "2001:660:4406:500:9:2::e",
+      "ip6": "2001:660:4406:500:9:2:0:e",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:b4",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.114",
-      "ip6": "2001:660:4406:500:9:3::e",
+      "ip6": "2001:660:4406:500:9:3:0:e",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:b6",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.214",
-      "ip6": "2001:660:4406:500:9:4::e",
+      "ip6": "2001:660:4406:500:9:4:0:e",
       "kavlan": true,
       "mac": "24:6e:96:02:a3:e4",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-15.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-15.json
index 621dc090033eaf4709adf66298d89d122f4f8476..8e478b5075782e8ec0a86b126cf069cb26adc5bd 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-15.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-15.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::f",
-      "kavlan-11": "2001:660:4406:1a0:509:0::f",
-      "kavlan-12": "2001:660:4406:2a0:509:0::f",
-      "kavlan-13": "2001:660:4406:4a0:509:0::f",
-      "kavlan-14": "2001:660:4406:5a0:509:0::f",
-      "kavlan-16": "2001:660:4406:7a0:509:0::f",
-      "kavlan-18": "2001:660:4406:8a0:509:0::f",
-      "kavlan-2": "2001:660:4406:581:9:0::f",
-      "kavlan-20": "2001:660:4406:3a0:509:0::f",
-      "kavlan-21": "2001:660:4406:6a0:509:0::f",
-      "kavlan-3": "2001:660:4406:582:9:0::f",
-      "kavlan-4": "2001:660:4406:590:9:0::f",
-      "kavlan-5": "2001:660:4406:591:9:0::f",
-      "kavlan-6": "2001:660:4406:592:9:0::f",
-      "kavlan-7": "2001:660:4406:593:9:0::f",
-      "kavlan-8": "2001:660:4406:594:9:0::f",
-      "kavlan-9": "2001:660:4406:595:9:0::f"
+      "kavlan-1": "2001:660:4406:580:9::f",
+      "kavlan-11": "2001:660:4406:1a0:509::f",
+      "kavlan-12": "2001:660:4406:2a0:509::f",
+      "kavlan-13": "2001:660:4406:4a0:509::f",
+      "kavlan-14": "2001:660:4406:5a0:509::f",
+      "kavlan-16": "2001:660:4406:7a0:509::f",
+      "kavlan-18": "2001:660:4406:8a0:509::f",
+      "kavlan-2": "2001:660:4406:581:9::f",
+      "kavlan-20": "2001:660:4406:3a0:509::f",
+      "kavlan-21": "2001:660:4406:6a0:509::f",
+      "kavlan-3": "2001:660:4406:582:9::f",
+      "kavlan-4": "2001:660:4406:590:9::f",
+      "kavlan-5": "2001:660:4406:591:9::f",
+      "kavlan-6": "2001:660:4406:592:9::f",
+      "kavlan-7": "2001:660:4406:593:9::f",
+      "kavlan-8": "2001:660:4406:594:9::f",
+      "kavlan-9": "2001:660:4406:595:9::f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::f",
-      "kavlan-11": "2001:660:4406:1a0:509:1::f",
-      "kavlan-12": "2001:660:4406:2a0:509:1::f",
-      "kavlan-13": "2001:660:4406:4a0:509:1::f",
-      "kavlan-14": "2001:660:4406:5a0:509:1::f",
-      "kavlan-16": "2001:660:4406:7a0:509:1::f",
-      "kavlan-18": "2001:660:4406:8a0:509:1::f",
-      "kavlan-2": "2001:660:4406:581:9:1::f",
-      "kavlan-20": "2001:660:4406:3a0:509:1::f",
-      "kavlan-21": "2001:660:4406:6a0:509:1::f",
-      "kavlan-3": "2001:660:4406:582:9:1::f",
-      "kavlan-4": "2001:660:4406:590:9:1::f",
-      "kavlan-5": "2001:660:4406:591:9:1::f",
-      "kavlan-6": "2001:660:4406:592:9:1::f",
-      "kavlan-7": "2001:660:4406:593:9:1::f",
-      "kavlan-8": "2001:660:4406:594:9:1::f",
-      "kavlan-9": "2001:660:4406:595:9:1::f"
+      "kavlan-1": "2001:660:4406:580:9:1:0:f",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:f",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:f",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:f",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:f",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:f",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:f",
+      "kavlan-2": "2001:660:4406:581:9:1:0:f",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:f",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:f",
+      "kavlan-3": "2001:660:4406:582:9:1:0:f",
+      "kavlan-4": "2001:660:4406:590:9:1:0:f",
+      "kavlan-5": "2001:660:4406:591:9:1:0:f",
+      "kavlan-6": "2001:660:4406:592:9:1:0:f",
+      "kavlan-7": "2001:660:4406:593:9:1:0:f",
+      "kavlan-8": "2001:660:4406:594:9:1:0:f",
+      "kavlan-9": "2001:660:4406:595:9:1:0:f"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::f",
-      "kavlan-11": "2001:660:4406:1a0:509:2::f",
-      "kavlan-12": "2001:660:4406:2a0:509:2::f",
-      "kavlan-13": "2001:660:4406:4a0:509:2::f",
-      "kavlan-14": "2001:660:4406:5a0:509:2::f",
-      "kavlan-16": "2001:660:4406:7a0:509:2::f",
-      "kavlan-18": "2001:660:4406:8a0:509:2::f",
-      "kavlan-2": "2001:660:4406:581:9:2::f",
-      "kavlan-20": "2001:660:4406:3a0:509:2::f",
-      "kavlan-21": "2001:660:4406:6a0:509:2::f",
-      "kavlan-3": "2001:660:4406:582:9:2::f",
-      "kavlan-4": "2001:660:4406:590:9:2::f",
-      "kavlan-5": "2001:660:4406:591:9:2::f",
-      "kavlan-6": "2001:660:4406:592:9:2::f",
-      "kavlan-7": "2001:660:4406:593:9:2::f",
-      "kavlan-8": "2001:660:4406:594:9:2::f",
-      "kavlan-9": "2001:660:4406:595:9:2::f"
+      "kavlan-1": "2001:660:4406:580:9:2:0:f",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:f",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:f",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:f",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:f",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:f",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:f",
+      "kavlan-2": "2001:660:4406:581:9:2:0:f",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:f",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:f",
+      "kavlan-3": "2001:660:4406:582:9:2:0:f",
+      "kavlan-4": "2001:660:4406:590:9:2:0:f",
+      "kavlan-5": "2001:660:4406:591:9:2:0:f",
+      "kavlan-6": "2001:660:4406:592:9:2:0:f",
+      "kavlan-7": "2001:660:4406:593:9:2:0:f",
+      "kavlan-8": "2001:660:4406:594:9:2:0:f",
+      "kavlan-9": "2001:660:4406:595:9:2:0:f"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::f",
-      "kavlan-11": "2001:660:4406:1a0:509:3::f",
-      "kavlan-12": "2001:660:4406:2a0:509:3::f",
-      "kavlan-13": "2001:660:4406:4a0:509:3::f",
-      "kavlan-14": "2001:660:4406:5a0:509:3::f",
-      "kavlan-16": "2001:660:4406:7a0:509:3::f",
-      "kavlan-18": "2001:660:4406:8a0:509:3::f",
-      "kavlan-2": "2001:660:4406:581:9:3::f",
-      "kavlan-20": "2001:660:4406:3a0:509:3::f",
-      "kavlan-21": "2001:660:4406:6a0:509:3::f",
-      "kavlan-3": "2001:660:4406:582:9:3::f",
-      "kavlan-4": "2001:660:4406:590:9:3::f",
-      "kavlan-5": "2001:660:4406:591:9:3::f",
-      "kavlan-6": "2001:660:4406:592:9:3::f",
-      "kavlan-7": "2001:660:4406:593:9:3::f",
-      "kavlan-8": "2001:660:4406:594:9:3::f",
-      "kavlan-9": "2001:660:4406:595:9:3::f"
+      "kavlan-1": "2001:660:4406:580:9:3:0:f",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:f",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:f",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:f",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:f",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:f",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:f",
+      "kavlan-2": "2001:660:4406:581:9:3:0:f",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:f",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:f",
+      "kavlan-3": "2001:660:4406:582:9:3:0:f",
+      "kavlan-4": "2001:660:4406:590:9:3:0:f",
+      "kavlan-5": "2001:660:4406:591:9:3:0:f",
+      "kavlan-6": "2001:660:4406:592:9:3:0:f",
+      "kavlan-7": "2001:660:4406:593:9:3:0:f",
+      "kavlan-8": "2001:660:4406:594:9:3:0:f",
+      "kavlan-9": "2001:660:4406:595:9:3:0:f"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::f",
-      "kavlan-11": "2001:660:4406:1a0:509:4::f",
-      "kavlan-12": "2001:660:4406:2a0:509:4::f",
-      "kavlan-13": "2001:660:4406:4a0:509:4::f",
-      "kavlan-14": "2001:660:4406:5a0:509:4::f",
-      "kavlan-16": "2001:660:4406:7a0:509:4::f",
-      "kavlan-18": "2001:660:4406:8a0:509:4::f",
-      "kavlan-2": "2001:660:4406:581:9:4::f",
-      "kavlan-20": "2001:660:4406:3a0:509:4::f",
-      "kavlan-21": "2001:660:4406:6a0:509:4::f",
-      "kavlan-3": "2001:660:4406:582:9:4::f",
-      "kavlan-4": "2001:660:4406:590:9:4::f",
-      "kavlan-5": "2001:660:4406:591:9:4::f",
-      "kavlan-6": "2001:660:4406:592:9:4::f",
-      "kavlan-7": "2001:660:4406:593:9:4::f",
-      "kavlan-8": "2001:660:4406:594:9:4::f",
-      "kavlan-9": "2001:660:4406:595:9:4::f"
+      "kavlan-1": "2001:660:4406:580:9:4:0:f",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:f",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:f",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:f",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:f",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:f",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:f",
+      "kavlan-2": "2001:660:4406:581:9:4:0:f",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:f",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:f",
+      "kavlan-3": "2001:660:4406:582:9:4:0:f",
+      "kavlan-4": "2001:660:4406:590:9:4:0:f",
+      "kavlan-5": "2001:660:4406:591:9:4:0:f",
+      "kavlan-6": "2001:660:4406:592:9:4:0:f",
+      "kavlan-7": "2001:660:4406:593:9:4:0:f",
+      "kavlan-8": "2001:660:4406:594:9:4:0:f",
+      "kavlan-9": "2001:660:4406:595:9:4:0:f"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.15",
-      "ip6": "2001:660:4406:500:9:0::f",
+      "ip6": "2001:660:4406:500:9::f",
       "kavlan": true,
       "mac": "24:6e:96:02:9f:08",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.115",
-      "ip6": "2001:660:4406:500:9:1::f",
+      "ip6": "2001:660:4406:500:9:1:0:f",
       "kavlan": true,
       "mac": "24:6e:96:02:9f:0a",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.215",
-      "ip6": "2001:660:4406:500:9:2::f",
+      "ip6": "2001:660:4406:500:9:2:0:f",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:78",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.115",
-      "ip6": "2001:660:4406:500:9:3::f",
+      "ip6": "2001:660:4406:500:9:3:0:f",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:7a",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.215",
-      "ip6": "2001:660:4406:500:9:4::f",
+      "ip6": "2001:660:4406:500:9:4:0:f",
       "kavlan": true,
       "mac": "24:6e:96:02:9f:0c",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-16.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-16.json
index a524fefa35dc0c4fd71737855f785071e4af829f..d01d3ca44fbf2a8d59add6bae2d6e072547bb896 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-16.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-16.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::10",
-      "kavlan-11": "2001:660:4406:1a0:509:0::10",
-      "kavlan-12": "2001:660:4406:2a0:509:0::10",
-      "kavlan-13": "2001:660:4406:4a0:509:0::10",
-      "kavlan-14": "2001:660:4406:5a0:509:0::10",
-      "kavlan-16": "2001:660:4406:7a0:509:0::10",
-      "kavlan-18": "2001:660:4406:8a0:509:0::10",
-      "kavlan-2": "2001:660:4406:581:9:0::10",
-      "kavlan-20": "2001:660:4406:3a0:509:0::10",
-      "kavlan-21": "2001:660:4406:6a0:509:0::10",
-      "kavlan-3": "2001:660:4406:582:9:0::10",
-      "kavlan-4": "2001:660:4406:590:9:0::10",
-      "kavlan-5": "2001:660:4406:591:9:0::10",
-      "kavlan-6": "2001:660:4406:592:9:0::10",
-      "kavlan-7": "2001:660:4406:593:9:0::10",
-      "kavlan-8": "2001:660:4406:594:9:0::10",
-      "kavlan-9": "2001:660:4406:595:9:0::10"
+      "kavlan-1": "2001:660:4406:580:9::10",
+      "kavlan-11": "2001:660:4406:1a0:509::10",
+      "kavlan-12": "2001:660:4406:2a0:509::10",
+      "kavlan-13": "2001:660:4406:4a0:509::10",
+      "kavlan-14": "2001:660:4406:5a0:509::10",
+      "kavlan-16": "2001:660:4406:7a0:509::10",
+      "kavlan-18": "2001:660:4406:8a0:509::10",
+      "kavlan-2": "2001:660:4406:581:9::10",
+      "kavlan-20": "2001:660:4406:3a0:509::10",
+      "kavlan-21": "2001:660:4406:6a0:509::10",
+      "kavlan-3": "2001:660:4406:582:9::10",
+      "kavlan-4": "2001:660:4406:590:9::10",
+      "kavlan-5": "2001:660:4406:591:9::10",
+      "kavlan-6": "2001:660:4406:592:9::10",
+      "kavlan-7": "2001:660:4406:593:9::10",
+      "kavlan-8": "2001:660:4406:594:9::10",
+      "kavlan-9": "2001:660:4406:595:9::10"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::10",
-      "kavlan-11": "2001:660:4406:1a0:509:1::10",
-      "kavlan-12": "2001:660:4406:2a0:509:1::10",
-      "kavlan-13": "2001:660:4406:4a0:509:1::10",
-      "kavlan-14": "2001:660:4406:5a0:509:1::10",
-      "kavlan-16": "2001:660:4406:7a0:509:1::10",
-      "kavlan-18": "2001:660:4406:8a0:509:1::10",
-      "kavlan-2": "2001:660:4406:581:9:1::10",
-      "kavlan-20": "2001:660:4406:3a0:509:1::10",
-      "kavlan-21": "2001:660:4406:6a0:509:1::10",
-      "kavlan-3": "2001:660:4406:582:9:1::10",
-      "kavlan-4": "2001:660:4406:590:9:1::10",
-      "kavlan-5": "2001:660:4406:591:9:1::10",
-      "kavlan-6": "2001:660:4406:592:9:1::10",
-      "kavlan-7": "2001:660:4406:593:9:1::10",
-      "kavlan-8": "2001:660:4406:594:9:1::10",
-      "kavlan-9": "2001:660:4406:595:9:1::10"
+      "kavlan-1": "2001:660:4406:580:9:1:0:10",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:10",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:10",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:10",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:10",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:10",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:10",
+      "kavlan-2": "2001:660:4406:581:9:1:0:10",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:10",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:10",
+      "kavlan-3": "2001:660:4406:582:9:1:0:10",
+      "kavlan-4": "2001:660:4406:590:9:1:0:10",
+      "kavlan-5": "2001:660:4406:591:9:1:0:10",
+      "kavlan-6": "2001:660:4406:592:9:1:0:10",
+      "kavlan-7": "2001:660:4406:593:9:1:0:10",
+      "kavlan-8": "2001:660:4406:594:9:1:0:10",
+      "kavlan-9": "2001:660:4406:595:9:1:0:10"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::10",
-      "kavlan-11": "2001:660:4406:1a0:509:2::10",
-      "kavlan-12": "2001:660:4406:2a0:509:2::10",
-      "kavlan-13": "2001:660:4406:4a0:509:2::10",
-      "kavlan-14": "2001:660:4406:5a0:509:2::10",
-      "kavlan-16": "2001:660:4406:7a0:509:2::10",
-      "kavlan-18": "2001:660:4406:8a0:509:2::10",
-      "kavlan-2": "2001:660:4406:581:9:2::10",
-      "kavlan-20": "2001:660:4406:3a0:509:2::10",
-      "kavlan-21": "2001:660:4406:6a0:509:2::10",
-      "kavlan-3": "2001:660:4406:582:9:2::10",
-      "kavlan-4": "2001:660:4406:590:9:2::10",
-      "kavlan-5": "2001:660:4406:591:9:2::10",
-      "kavlan-6": "2001:660:4406:592:9:2::10",
-      "kavlan-7": "2001:660:4406:593:9:2::10",
-      "kavlan-8": "2001:660:4406:594:9:2::10",
-      "kavlan-9": "2001:660:4406:595:9:2::10"
+      "kavlan-1": "2001:660:4406:580:9:2:0:10",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:10",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:10",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:10",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:10",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:10",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:10",
+      "kavlan-2": "2001:660:4406:581:9:2:0:10",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:10",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:10",
+      "kavlan-3": "2001:660:4406:582:9:2:0:10",
+      "kavlan-4": "2001:660:4406:590:9:2:0:10",
+      "kavlan-5": "2001:660:4406:591:9:2:0:10",
+      "kavlan-6": "2001:660:4406:592:9:2:0:10",
+      "kavlan-7": "2001:660:4406:593:9:2:0:10",
+      "kavlan-8": "2001:660:4406:594:9:2:0:10",
+      "kavlan-9": "2001:660:4406:595:9:2:0:10"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::10",
-      "kavlan-11": "2001:660:4406:1a0:509:3::10",
-      "kavlan-12": "2001:660:4406:2a0:509:3::10",
-      "kavlan-13": "2001:660:4406:4a0:509:3::10",
-      "kavlan-14": "2001:660:4406:5a0:509:3::10",
-      "kavlan-16": "2001:660:4406:7a0:509:3::10",
-      "kavlan-18": "2001:660:4406:8a0:509:3::10",
-      "kavlan-2": "2001:660:4406:581:9:3::10",
-      "kavlan-20": "2001:660:4406:3a0:509:3::10",
-      "kavlan-21": "2001:660:4406:6a0:509:3::10",
-      "kavlan-3": "2001:660:4406:582:9:3::10",
-      "kavlan-4": "2001:660:4406:590:9:3::10",
-      "kavlan-5": "2001:660:4406:591:9:3::10",
-      "kavlan-6": "2001:660:4406:592:9:3::10",
-      "kavlan-7": "2001:660:4406:593:9:3::10",
-      "kavlan-8": "2001:660:4406:594:9:3::10",
-      "kavlan-9": "2001:660:4406:595:9:3::10"
+      "kavlan-1": "2001:660:4406:580:9:3:0:10",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:10",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:10",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:10",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:10",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:10",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:10",
+      "kavlan-2": "2001:660:4406:581:9:3:0:10",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:10",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:10",
+      "kavlan-3": "2001:660:4406:582:9:3:0:10",
+      "kavlan-4": "2001:660:4406:590:9:3:0:10",
+      "kavlan-5": "2001:660:4406:591:9:3:0:10",
+      "kavlan-6": "2001:660:4406:592:9:3:0:10",
+      "kavlan-7": "2001:660:4406:593:9:3:0:10",
+      "kavlan-8": "2001:660:4406:594:9:3:0:10",
+      "kavlan-9": "2001:660:4406:595:9:3:0:10"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::10",
-      "kavlan-11": "2001:660:4406:1a0:509:4::10",
-      "kavlan-12": "2001:660:4406:2a0:509:4::10",
-      "kavlan-13": "2001:660:4406:4a0:509:4::10",
-      "kavlan-14": "2001:660:4406:5a0:509:4::10",
-      "kavlan-16": "2001:660:4406:7a0:509:4::10",
-      "kavlan-18": "2001:660:4406:8a0:509:4::10",
-      "kavlan-2": "2001:660:4406:581:9:4::10",
-      "kavlan-20": "2001:660:4406:3a0:509:4::10",
-      "kavlan-21": "2001:660:4406:6a0:509:4::10",
-      "kavlan-3": "2001:660:4406:582:9:4::10",
-      "kavlan-4": "2001:660:4406:590:9:4::10",
-      "kavlan-5": "2001:660:4406:591:9:4::10",
-      "kavlan-6": "2001:660:4406:592:9:4::10",
-      "kavlan-7": "2001:660:4406:593:9:4::10",
-      "kavlan-8": "2001:660:4406:594:9:4::10",
-      "kavlan-9": "2001:660:4406:595:9:4::10"
+      "kavlan-1": "2001:660:4406:580:9:4:0:10",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:10",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:10",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:10",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:10",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:10",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:10",
+      "kavlan-2": "2001:660:4406:581:9:4:0:10",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:10",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:10",
+      "kavlan-3": "2001:660:4406:582:9:4:0:10",
+      "kavlan-4": "2001:660:4406:590:9:4:0:10",
+      "kavlan-5": "2001:660:4406:591:9:4:0:10",
+      "kavlan-6": "2001:660:4406:592:9:4:0:10",
+      "kavlan-7": "2001:660:4406:593:9:4:0:10",
+      "kavlan-8": "2001:660:4406:594:9:4:0:10",
+      "kavlan-9": "2001:660:4406:595:9:4:0:10"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.16",
-      "ip6": "2001:660:4406:500:9:0::10",
+      "ip6": "2001:660:4406:500:9::10",
       "kavlan": true,
       "mac": "e4:43:4b:5a:e6:38",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.116",
-      "ip6": "2001:660:4406:500:9:1::10",
+      "ip6": "2001:660:4406:500:9:1:0:10",
       "kavlan": true,
       "mac": "e4:43:4b:5a:e6:3a",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.216",
-      "ip6": "2001:660:4406:500:9:2::10",
+      "ip6": "2001:660:4406:500:9:2:0:10",
       "kavlan": true,
       "mac": "b4:96:91:57:34:a4",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.116",
-      "ip6": "2001:660:4406:500:9:3::10",
+      "ip6": "2001:660:4406:500:9:3:0:10",
       "kavlan": true,
       "mac": "b4:96:91:57:34:a6",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.216",
-      "ip6": "2001:660:4406:500:9:4::10",
+      "ip6": "2001:660:4406:500:9:4:0:10",
       "kavlan": true,
       "mac": "e4:43:4b:5a:e6:3c",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-17.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-17.json
index c6ec5efa3ea3be3bbd2acaa5dd8212b0ca21ab0f..8c5c66aba4c299d1de7b83e024bc8c888eaaa2da 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-17.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-17.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::11",
-      "kavlan-11": "2001:660:4406:1a0:509:0::11",
-      "kavlan-12": "2001:660:4406:2a0:509:0::11",
-      "kavlan-13": "2001:660:4406:4a0:509:0::11",
-      "kavlan-14": "2001:660:4406:5a0:509:0::11",
-      "kavlan-16": "2001:660:4406:7a0:509:0::11",
-      "kavlan-18": "2001:660:4406:8a0:509:0::11",
-      "kavlan-2": "2001:660:4406:581:9:0::11",
-      "kavlan-20": "2001:660:4406:3a0:509:0::11",
-      "kavlan-21": "2001:660:4406:6a0:509:0::11",
-      "kavlan-3": "2001:660:4406:582:9:0::11",
-      "kavlan-4": "2001:660:4406:590:9:0::11",
-      "kavlan-5": "2001:660:4406:591:9:0::11",
-      "kavlan-6": "2001:660:4406:592:9:0::11",
-      "kavlan-7": "2001:660:4406:593:9:0::11",
-      "kavlan-8": "2001:660:4406:594:9:0::11",
-      "kavlan-9": "2001:660:4406:595:9:0::11"
+      "kavlan-1": "2001:660:4406:580:9::11",
+      "kavlan-11": "2001:660:4406:1a0:509::11",
+      "kavlan-12": "2001:660:4406:2a0:509::11",
+      "kavlan-13": "2001:660:4406:4a0:509::11",
+      "kavlan-14": "2001:660:4406:5a0:509::11",
+      "kavlan-16": "2001:660:4406:7a0:509::11",
+      "kavlan-18": "2001:660:4406:8a0:509::11",
+      "kavlan-2": "2001:660:4406:581:9::11",
+      "kavlan-20": "2001:660:4406:3a0:509::11",
+      "kavlan-21": "2001:660:4406:6a0:509::11",
+      "kavlan-3": "2001:660:4406:582:9::11",
+      "kavlan-4": "2001:660:4406:590:9::11",
+      "kavlan-5": "2001:660:4406:591:9::11",
+      "kavlan-6": "2001:660:4406:592:9::11",
+      "kavlan-7": "2001:660:4406:593:9::11",
+      "kavlan-8": "2001:660:4406:594:9::11",
+      "kavlan-9": "2001:660:4406:595:9::11"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::11",
-      "kavlan-11": "2001:660:4406:1a0:509:1::11",
-      "kavlan-12": "2001:660:4406:2a0:509:1::11",
-      "kavlan-13": "2001:660:4406:4a0:509:1::11",
-      "kavlan-14": "2001:660:4406:5a0:509:1::11",
-      "kavlan-16": "2001:660:4406:7a0:509:1::11",
-      "kavlan-18": "2001:660:4406:8a0:509:1::11",
-      "kavlan-2": "2001:660:4406:581:9:1::11",
-      "kavlan-20": "2001:660:4406:3a0:509:1::11",
-      "kavlan-21": "2001:660:4406:6a0:509:1::11",
-      "kavlan-3": "2001:660:4406:582:9:1::11",
-      "kavlan-4": "2001:660:4406:590:9:1::11",
-      "kavlan-5": "2001:660:4406:591:9:1::11",
-      "kavlan-6": "2001:660:4406:592:9:1::11",
-      "kavlan-7": "2001:660:4406:593:9:1::11",
-      "kavlan-8": "2001:660:4406:594:9:1::11",
-      "kavlan-9": "2001:660:4406:595:9:1::11"
+      "kavlan-1": "2001:660:4406:580:9:1:0:11",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:11",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:11",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:11",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:11",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:11",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:11",
+      "kavlan-2": "2001:660:4406:581:9:1:0:11",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:11",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:11",
+      "kavlan-3": "2001:660:4406:582:9:1:0:11",
+      "kavlan-4": "2001:660:4406:590:9:1:0:11",
+      "kavlan-5": "2001:660:4406:591:9:1:0:11",
+      "kavlan-6": "2001:660:4406:592:9:1:0:11",
+      "kavlan-7": "2001:660:4406:593:9:1:0:11",
+      "kavlan-8": "2001:660:4406:594:9:1:0:11",
+      "kavlan-9": "2001:660:4406:595:9:1:0:11"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::11",
-      "kavlan-11": "2001:660:4406:1a0:509:2::11",
-      "kavlan-12": "2001:660:4406:2a0:509:2::11",
-      "kavlan-13": "2001:660:4406:4a0:509:2::11",
-      "kavlan-14": "2001:660:4406:5a0:509:2::11",
-      "kavlan-16": "2001:660:4406:7a0:509:2::11",
-      "kavlan-18": "2001:660:4406:8a0:509:2::11",
-      "kavlan-2": "2001:660:4406:581:9:2::11",
-      "kavlan-20": "2001:660:4406:3a0:509:2::11",
-      "kavlan-21": "2001:660:4406:6a0:509:2::11",
-      "kavlan-3": "2001:660:4406:582:9:2::11",
-      "kavlan-4": "2001:660:4406:590:9:2::11",
-      "kavlan-5": "2001:660:4406:591:9:2::11",
-      "kavlan-6": "2001:660:4406:592:9:2::11",
-      "kavlan-7": "2001:660:4406:593:9:2::11",
-      "kavlan-8": "2001:660:4406:594:9:2::11",
-      "kavlan-9": "2001:660:4406:595:9:2::11"
+      "kavlan-1": "2001:660:4406:580:9:2:0:11",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:11",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:11",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:11",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:11",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:11",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:11",
+      "kavlan-2": "2001:660:4406:581:9:2:0:11",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:11",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:11",
+      "kavlan-3": "2001:660:4406:582:9:2:0:11",
+      "kavlan-4": "2001:660:4406:590:9:2:0:11",
+      "kavlan-5": "2001:660:4406:591:9:2:0:11",
+      "kavlan-6": "2001:660:4406:592:9:2:0:11",
+      "kavlan-7": "2001:660:4406:593:9:2:0:11",
+      "kavlan-8": "2001:660:4406:594:9:2:0:11",
+      "kavlan-9": "2001:660:4406:595:9:2:0:11"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::11",
-      "kavlan-11": "2001:660:4406:1a0:509:3::11",
-      "kavlan-12": "2001:660:4406:2a0:509:3::11",
-      "kavlan-13": "2001:660:4406:4a0:509:3::11",
-      "kavlan-14": "2001:660:4406:5a0:509:3::11",
-      "kavlan-16": "2001:660:4406:7a0:509:3::11",
-      "kavlan-18": "2001:660:4406:8a0:509:3::11",
-      "kavlan-2": "2001:660:4406:581:9:3::11",
-      "kavlan-20": "2001:660:4406:3a0:509:3::11",
-      "kavlan-21": "2001:660:4406:6a0:509:3::11",
-      "kavlan-3": "2001:660:4406:582:9:3::11",
-      "kavlan-4": "2001:660:4406:590:9:3::11",
-      "kavlan-5": "2001:660:4406:591:9:3::11",
-      "kavlan-6": "2001:660:4406:592:9:3::11",
-      "kavlan-7": "2001:660:4406:593:9:3::11",
-      "kavlan-8": "2001:660:4406:594:9:3::11",
-      "kavlan-9": "2001:660:4406:595:9:3::11"
+      "kavlan-1": "2001:660:4406:580:9:3:0:11",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:11",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:11",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:11",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:11",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:11",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:11",
+      "kavlan-2": "2001:660:4406:581:9:3:0:11",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:11",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:11",
+      "kavlan-3": "2001:660:4406:582:9:3:0:11",
+      "kavlan-4": "2001:660:4406:590:9:3:0:11",
+      "kavlan-5": "2001:660:4406:591:9:3:0:11",
+      "kavlan-6": "2001:660:4406:592:9:3:0:11",
+      "kavlan-7": "2001:660:4406:593:9:3:0:11",
+      "kavlan-8": "2001:660:4406:594:9:3:0:11",
+      "kavlan-9": "2001:660:4406:595:9:3:0:11"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::11",
-      "kavlan-11": "2001:660:4406:1a0:509:4::11",
-      "kavlan-12": "2001:660:4406:2a0:509:4::11",
-      "kavlan-13": "2001:660:4406:4a0:509:4::11",
-      "kavlan-14": "2001:660:4406:5a0:509:4::11",
-      "kavlan-16": "2001:660:4406:7a0:509:4::11",
-      "kavlan-18": "2001:660:4406:8a0:509:4::11",
-      "kavlan-2": "2001:660:4406:581:9:4::11",
-      "kavlan-20": "2001:660:4406:3a0:509:4::11",
-      "kavlan-21": "2001:660:4406:6a0:509:4::11",
-      "kavlan-3": "2001:660:4406:582:9:4::11",
-      "kavlan-4": "2001:660:4406:590:9:4::11",
-      "kavlan-5": "2001:660:4406:591:9:4::11",
-      "kavlan-6": "2001:660:4406:592:9:4::11",
-      "kavlan-7": "2001:660:4406:593:9:4::11",
-      "kavlan-8": "2001:660:4406:594:9:4::11",
-      "kavlan-9": "2001:660:4406:595:9:4::11"
+      "kavlan-1": "2001:660:4406:580:9:4:0:11",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:11",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:11",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:11",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:11",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:11",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:11",
+      "kavlan-2": "2001:660:4406:581:9:4:0:11",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:11",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:11",
+      "kavlan-3": "2001:660:4406:582:9:4:0:11",
+      "kavlan-4": "2001:660:4406:590:9:4:0:11",
+      "kavlan-5": "2001:660:4406:591:9:4:0:11",
+      "kavlan-6": "2001:660:4406:592:9:4:0:11",
+      "kavlan-7": "2001:660:4406:593:9:4:0:11",
+      "kavlan-8": "2001:660:4406:594:9:4:0:11",
+      "kavlan-9": "2001:660:4406:595:9:4:0:11"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.17",
-      "ip6": "2001:660:4406:500:9:0::11",
+      "ip6": "2001:660:4406:500:9::11",
       "kavlan": true,
       "mac": "24:6e:96:02:a1:50",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.117",
-      "ip6": "2001:660:4406:500:9:1::11",
+      "ip6": "2001:660:4406:500:9:1:0:11",
       "kavlan": true,
       "mac": "24:6e:96:02:a1:52",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.217",
-      "ip6": "2001:660:4406:500:9:2::11",
+      "ip6": "2001:660:4406:500:9:2:0:11",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:c8",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.117",
-      "ip6": "2001:660:4406:500:9:3::11",
+      "ip6": "2001:660:4406:500:9:3:0:11",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:ca",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.217",
-      "ip6": "2001:660:4406:500:9:4::11",
+      "ip6": "2001:660:4406:500:9:4:0:11",
       "kavlan": true,
       "mac": "24:6e:96:02:a1:54",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-18.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-18.json
index 0971e3289edf787171cff4f93dbe9368b57a484c..91fbc39209c60e31c10eb39f39450d1be93cfe6a 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-18.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-18.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::12",
-      "kavlan-11": "2001:660:4406:1a0:509:0::12",
-      "kavlan-12": "2001:660:4406:2a0:509:0::12",
-      "kavlan-13": "2001:660:4406:4a0:509:0::12",
-      "kavlan-14": "2001:660:4406:5a0:509:0::12",
-      "kavlan-16": "2001:660:4406:7a0:509:0::12",
-      "kavlan-18": "2001:660:4406:8a0:509:0::12",
-      "kavlan-2": "2001:660:4406:581:9:0::12",
-      "kavlan-20": "2001:660:4406:3a0:509:0::12",
-      "kavlan-21": "2001:660:4406:6a0:509:0::12",
-      "kavlan-3": "2001:660:4406:582:9:0::12",
-      "kavlan-4": "2001:660:4406:590:9:0::12",
-      "kavlan-5": "2001:660:4406:591:9:0::12",
-      "kavlan-6": "2001:660:4406:592:9:0::12",
-      "kavlan-7": "2001:660:4406:593:9:0::12",
-      "kavlan-8": "2001:660:4406:594:9:0::12",
-      "kavlan-9": "2001:660:4406:595:9:0::12"
+      "kavlan-1": "2001:660:4406:580:9::12",
+      "kavlan-11": "2001:660:4406:1a0:509::12",
+      "kavlan-12": "2001:660:4406:2a0:509::12",
+      "kavlan-13": "2001:660:4406:4a0:509::12",
+      "kavlan-14": "2001:660:4406:5a0:509::12",
+      "kavlan-16": "2001:660:4406:7a0:509::12",
+      "kavlan-18": "2001:660:4406:8a0:509::12",
+      "kavlan-2": "2001:660:4406:581:9::12",
+      "kavlan-20": "2001:660:4406:3a0:509::12",
+      "kavlan-21": "2001:660:4406:6a0:509::12",
+      "kavlan-3": "2001:660:4406:582:9::12",
+      "kavlan-4": "2001:660:4406:590:9::12",
+      "kavlan-5": "2001:660:4406:591:9::12",
+      "kavlan-6": "2001:660:4406:592:9::12",
+      "kavlan-7": "2001:660:4406:593:9::12",
+      "kavlan-8": "2001:660:4406:594:9::12",
+      "kavlan-9": "2001:660:4406:595:9::12"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::12",
-      "kavlan-11": "2001:660:4406:1a0:509:1::12",
-      "kavlan-12": "2001:660:4406:2a0:509:1::12",
-      "kavlan-13": "2001:660:4406:4a0:509:1::12",
-      "kavlan-14": "2001:660:4406:5a0:509:1::12",
-      "kavlan-16": "2001:660:4406:7a0:509:1::12",
-      "kavlan-18": "2001:660:4406:8a0:509:1::12",
-      "kavlan-2": "2001:660:4406:581:9:1::12",
-      "kavlan-20": "2001:660:4406:3a0:509:1::12",
-      "kavlan-21": "2001:660:4406:6a0:509:1::12",
-      "kavlan-3": "2001:660:4406:582:9:1::12",
-      "kavlan-4": "2001:660:4406:590:9:1::12",
-      "kavlan-5": "2001:660:4406:591:9:1::12",
-      "kavlan-6": "2001:660:4406:592:9:1::12",
-      "kavlan-7": "2001:660:4406:593:9:1::12",
-      "kavlan-8": "2001:660:4406:594:9:1::12",
-      "kavlan-9": "2001:660:4406:595:9:1::12"
+      "kavlan-1": "2001:660:4406:580:9:1:0:12",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:12",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:12",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:12",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:12",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:12",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:12",
+      "kavlan-2": "2001:660:4406:581:9:1:0:12",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:12",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:12",
+      "kavlan-3": "2001:660:4406:582:9:1:0:12",
+      "kavlan-4": "2001:660:4406:590:9:1:0:12",
+      "kavlan-5": "2001:660:4406:591:9:1:0:12",
+      "kavlan-6": "2001:660:4406:592:9:1:0:12",
+      "kavlan-7": "2001:660:4406:593:9:1:0:12",
+      "kavlan-8": "2001:660:4406:594:9:1:0:12",
+      "kavlan-9": "2001:660:4406:595:9:1:0:12"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::12",
-      "kavlan-11": "2001:660:4406:1a0:509:2::12",
-      "kavlan-12": "2001:660:4406:2a0:509:2::12",
-      "kavlan-13": "2001:660:4406:4a0:509:2::12",
-      "kavlan-14": "2001:660:4406:5a0:509:2::12",
-      "kavlan-16": "2001:660:4406:7a0:509:2::12",
-      "kavlan-18": "2001:660:4406:8a0:509:2::12",
-      "kavlan-2": "2001:660:4406:581:9:2::12",
-      "kavlan-20": "2001:660:4406:3a0:509:2::12",
-      "kavlan-21": "2001:660:4406:6a0:509:2::12",
-      "kavlan-3": "2001:660:4406:582:9:2::12",
-      "kavlan-4": "2001:660:4406:590:9:2::12",
-      "kavlan-5": "2001:660:4406:591:9:2::12",
-      "kavlan-6": "2001:660:4406:592:9:2::12",
-      "kavlan-7": "2001:660:4406:593:9:2::12",
-      "kavlan-8": "2001:660:4406:594:9:2::12",
-      "kavlan-9": "2001:660:4406:595:9:2::12"
+      "kavlan-1": "2001:660:4406:580:9:2:0:12",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:12",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:12",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:12",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:12",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:12",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:12",
+      "kavlan-2": "2001:660:4406:581:9:2:0:12",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:12",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:12",
+      "kavlan-3": "2001:660:4406:582:9:2:0:12",
+      "kavlan-4": "2001:660:4406:590:9:2:0:12",
+      "kavlan-5": "2001:660:4406:591:9:2:0:12",
+      "kavlan-6": "2001:660:4406:592:9:2:0:12",
+      "kavlan-7": "2001:660:4406:593:9:2:0:12",
+      "kavlan-8": "2001:660:4406:594:9:2:0:12",
+      "kavlan-9": "2001:660:4406:595:9:2:0:12"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::12",
-      "kavlan-11": "2001:660:4406:1a0:509:3::12",
-      "kavlan-12": "2001:660:4406:2a0:509:3::12",
-      "kavlan-13": "2001:660:4406:4a0:509:3::12",
-      "kavlan-14": "2001:660:4406:5a0:509:3::12",
-      "kavlan-16": "2001:660:4406:7a0:509:3::12",
-      "kavlan-18": "2001:660:4406:8a0:509:3::12",
-      "kavlan-2": "2001:660:4406:581:9:3::12",
-      "kavlan-20": "2001:660:4406:3a0:509:3::12",
-      "kavlan-21": "2001:660:4406:6a0:509:3::12",
-      "kavlan-3": "2001:660:4406:582:9:3::12",
-      "kavlan-4": "2001:660:4406:590:9:3::12",
-      "kavlan-5": "2001:660:4406:591:9:3::12",
-      "kavlan-6": "2001:660:4406:592:9:3::12",
-      "kavlan-7": "2001:660:4406:593:9:3::12",
-      "kavlan-8": "2001:660:4406:594:9:3::12",
-      "kavlan-9": "2001:660:4406:595:9:3::12"
+      "kavlan-1": "2001:660:4406:580:9:3:0:12",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:12",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:12",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:12",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:12",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:12",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:12",
+      "kavlan-2": "2001:660:4406:581:9:3:0:12",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:12",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:12",
+      "kavlan-3": "2001:660:4406:582:9:3:0:12",
+      "kavlan-4": "2001:660:4406:590:9:3:0:12",
+      "kavlan-5": "2001:660:4406:591:9:3:0:12",
+      "kavlan-6": "2001:660:4406:592:9:3:0:12",
+      "kavlan-7": "2001:660:4406:593:9:3:0:12",
+      "kavlan-8": "2001:660:4406:594:9:3:0:12",
+      "kavlan-9": "2001:660:4406:595:9:3:0:12"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::12",
-      "kavlan-11": "2001:660:4406:1a0:509:4::12",
-      "kavlan-12": "2001:660:4406:2a0:509:4::12",
-      "kavlan-13": "2001:660:4406:4a0:509:4::12",
-      "kavlan-14": "2001:660:4406:5a0:509:4::12",
-      "kavlan-16": "2001:660:4406:7a0:509:4::12",
-      "kavlan-18": "2001:660:4406:8a0:509:4::12",
-      "kavlan-2": "2001:660:4406:581:9:4::12",
-      "kavlan-20": "2001:660:4406:3a0:509:4::12",
-      "kavlan-21": "2001:660:4406:6a0:509:4::12",
-      "kavlan-3": "2001:660:4406:582:9:4::12",
-      "kavlan-4": "2001:660:4406:590:9:4::12",
-      "kavlan-5": "2001:660:4406:591:9:4::12",
-      "kavlan-6": "2001:660:4406:592:9:4::12",
-      "kavlan-7": "2001:660:4406:593:9:4::12",
-      "kavlan-8": "2001:660:4406:594:9:4::12",
-      "kavlan-9": "2001:660:4406:595:9:4::12"
+      "kavlan-1": "2001:660:4406:580:9:4:0:12",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:12",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:12",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:12",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:12",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:12",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:12",
+      "kavlan-2": "2001:660:4406:581:9:4:0:12",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:12",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:12",
+      "kavlan-3": "2001:660:4406:582:9:4:0:12",
+      "kavlan-4": "2001:660:4406:590:9:4:0:12",
+      "kavlan-5": "2001:660:4406:591:9:4:0:12",
+      "kavlan-6": "2001:660:4406:592:9:4:0:12",
+      "kavlan-7": "2001:660:4406:593:9:4:0:12",
+      "kavlan-8": "2001:660:4406:594:9:4:0:12",
+      "kavlan-9": "2001:660:4406:595:9:4:0:12"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.18",
-      "ip6": "2001:660:4406:500:9:0::12",
+      "ip6": "2001:660:4406:500:9::12",
       "kavlan": true,
       "mac": "24:6e:96:03:0e:90",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.118",
-      "ip6": "2001:660:4406:500:9:1::12",
+      "ip6": "2001:660:4406:500:9:1:0:12",
       "kavlan": true,
       "mac": "24:6e:96:03:0e:92",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.218",
-      "ip6": "2001:660:4406:500:9:2::12",
+      "ip6": "2001:660:4406:500:9:2:0:12",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:40",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.118",
-      "ip6": "2001:660:4406:500:9:3::12",
+      "ip6": "2001:660:4406:500:9:3:0:12",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:42",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.218",
-      "ip6": "2001:660:4406:500:9:4::12",
+      "ip6": "2001:660:4406:500:9:4:0:12",
       "kavlan": true,
       "mac": "24:6e:96:03:0e:94",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-19.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-19.json
index 620242513f8f8ffb9661a5d3a613b078b04884da..fbccc0be9e61d46932b086fad2eb784da3a64eef 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-19.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-19.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::13",
-      "kavlan-11": "2001:660:4406:1a0:509:0::13",
-      "kavlan-12": "2001:660:4406:2a0:509:0::13",
-      "kavlan-13": "2001:660:4406:4a0:509:0::13",
-      "kavlan-14": "2001:660:4406:5a0:509:0::13",
-      "kavlan-16": "2001:660:4406:7a0:509:0::13",
-      "kavlan-18": "2001:660:4406:8a0:509:0::13",
-      "kavlan-2": "2001:660:4406:581:9:0::13",
-      "kavlan-20": "2001:660:4406:3a0:509:0::13",
-      "kavlan-21": "2001:660:4406:6a0:509:0::13",
-      "kavlan-3": "2001:660:4406:582:9:0::13",
-      "kavlan-4": "2001:660:4406:590:9:0::13",
-      "kavlan-5": "2001:660:4406:591:9:0::13",
-      "kavlan-6": "2001:660:4406:592:9:0::13",
-      "kavlan-7": "2001:660:4406:593:9:0::13",
-      "kavlan-8": "2001:660:4406:594:9:0::13",
-      "kavlan-9": "2001:660:4406:595:9:0::13"
+      "kavlan-1": "2001:660:4406:580:9::13",
+      "kavlan-11": "2001:660:4406:1a0:509::13",
+      "kavlan-12": "2001:660:4406:2a0:509::13",
+      "kavlan-13": "2001:660:4406:4a0:509::13",
+      "kavlan-14": "2001:660:4406:5a0:509::13",
+      "kavlan-16": "2001:660:4406:7a0:509::13",
+      "kavlan-18": "2001:660:4406:8a0:509::13",
+      "kavlan-2": "2001:660:4406:581:9::13",
+      "kavlan-20": "2001:660:4406:3a0:509::13",
+      "kavlan-21": "2001:660:4406:6a0:509::13",
+      "kavlan-3": "2001:660:4406:582:9::13",
+      "kavlan-4": "2001:660:4406:590:9::13",
+      "kavlan-5": "2001:660:4406:591:9::13",
+      "kavlan-6": "2001:660:4406:592:9::13",
+      "kavlan-7": "2001:660:4406:593:9::13",
+      "kavlan-8": "2001:660:4406:594:9::13",
+      "kavlan-9": "2001:660:4406:595:9::13"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::13",
-      "kavlan-11": "2001:660:4406:1a0:509:1::13",
-      "kavlan-12": "2001:660:4406:2a0:509:1::13",
-      "kavlan-13": "2001:660:4406:4a0:509:1::13",
-      "kavlan-14": "2001:660:4406:5a0:509:1::13",
-      "kavlan-16": "2001:660:4406:7a0:509:1::13",
-      "kavlan-18": "2001:660:4406:8a0:509:1::13",
-      "kavlan-2": "2001:660:4406:581:9:1::13",
-      "kavlan-20": "2001:660:4406:3a0:509:1::13",
-      "kavlan-21": "2001:660:4406:6a0:509:1::13",
-      "kavlan-3": "2001:660:4406:582:9:1::13",
-      "kavlan-4": "2001:660:4406:590:9:1::13",
-      "kavlan-5": "2001:660:4406:591:9:1::13",
-      "kavlan-6": "2001:660:4406:592:9:1::13",
-      "kavlan-7": "2001:660:4406:593:9:1::13",
-      "kavlan-8": "2001:660:4406:594:9:1::13",
-      "kavlan-9": "2001:660:4406:595:9:1::13"
+      "kavlan-1": "2001:660:4406:580:9:1:0:13",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:13",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:13",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:13",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:13",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:13",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:13",
+      "kavlan-2": "2001:660:4406:581:9:1:0:13",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:13",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:13",
+      "kavlan-3": "2001:660:4406:582:9:1:0:13",
+      "kavlan-4": "2001:660:4406:590:9:1:0:13",
+      "kavlan-5": "2001:660:4406:591:9:1:0:13",
+      "kavlan-6": "2001:660:4406:592:9:1:0:13",
+      "kavlan-7": "2001:660:4406:593:9:1:0:13",
+      "kavlan-8": "2001:660:4406:594:9:1:0:13",
+      "kavlan-9": "2001:660:4406:595:9:1:0:13"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::13",
-      "kavlan-11": "2001:660:4406:1a0:509:2::13",
-      "kavlan-12": "2001:660:4406:2a0:509:2::13",
-      "kavlan-13": "2001:660:4406:4a0:509:2::13",
-      "kavlan-14": "2001:660:4406:5a0:509:2::13",
-      "kavlan-16": "2001:660:4406:7a0:509:2::13",
-      "kavlan-18": "2001:660:4406:8a0:509:2::13",
-      "kavlan-2": "2001:660:4406:581:9:2::13",
-      "kavlan-20": "2001:660:4406:3a0:509:2::13",
-      "kavlan-21": "2001:660:4406:6a0:509:2::13",
-      "kavlan-3": "2001:660:4406:582:9:2::13",
-      "kavlan-4": "2001:660:4406:590:9:2::13",
-      "kavlan-5": "2001:660:4406:591:9:2::13",
-      "kavlan-6": "2001:660:4406:592:9:2::13",
-      "kavlan-7": "2001:660:4406:593:9:2::13",
-      "kavlan-8": "2001:660:4406:594:9:2::13",
-      "kavlan-9": "2001:660:4406:595:9:2::13"
+      "kavlan-1": "2001:660:4406:580:9:2:0:13",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:13",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:13",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:13",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:13",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:13",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:13",
+      "kavlan-2": "2001:660:4406:581:9:2:0:13",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:13",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:13",
+      "kavlan-3": "2001:660:4406:582:9:2:0:13",
+      "kavlan-4": "2001:660:4406:590:9:2:0:13",
+      "kavlan-5": "2001:660:4406:591:9:2:0:13",
+      "kavlan-6": "2001:660:4406:592:9:2:0:13",
+      "kavlan-7": "2001:660:4406:593:9:2:0:13",
+      "kavlan-8": "2001:660:4406:594:9:2:0:13",
+      "kavlan-9": "2001:660:4406:595:9:2:0:13"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::13",
-      "kavlan-11": "2001:660:4406:1a0:509:3::13",
-      "kavlan-12": "2001:660:4406:2a0:509:3::13",
-      "kavlan-13": "2001:660:4406:4a0:509:3::13",
-      "kavlan-14": "2001:660:4406:5a0:509:3::13",
-      "kavlan-16": "2001:660:4406:7a0:509:3::13",
-      "kavlan-18": "2001:660:4406:8a0:509:3::13",
-      "kavlan-2": "2001:660:4406:581:9:3::13",
-      "kavlan-20": "2001:660:4406:3a0:509:3::13",
-      "kavlan-21": "2001:660:4406:6a0:509:3::13",
-      "kavlan-3": "2001:660:4406:582:9:3::13",
-      "kavlan-4": "2001:660:4406:590:9:3::13",
-      "kavlan-5": "2001:660:4406:591:9:3::13",
-      "kavlan-6": "2001:660:4406:592:9:3::13",
-      "kavlan-7": "2001:660:4406:593:9:3::13",
-      "kavlan-8": "2001:660:4406:594:9:3::13",
-      "kavlan-9": "2001:660:4406:595:9:3::13"
+      "kavlan-1": "2001:660:4406:580:9:3:0:13",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:13",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:13",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:13",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:13",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:13",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:13",
+      "kavlan-2": "2001:660:4406:581:9:3:0:13",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:13",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:13",
+      "kavlan-3": "2001:660:4406:582:9:3:0:13",
+      "kavlan-4": "2001:660:4406:590:9:3:0:13",
+      "kavlan-5": "2001:660:4406:591:9:3:0:13",
+      "kavlan-6": "2001:660:4406:592:9:3:0:13",
+      "kavlan-7": "2001:660:4406:593:9:3:0:13",
+      "kavlan-8": "2001:660:4406:594:9:3:0:13",
+      "kavlan-9": "2001:660:4406:595:9:3:0:13"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::13",
-      "kavlan-11": "2001:660:4406:1a0:509:4::13",
-      "kavlan-12": "2001:660:4406:2a0:509:4::13",
-      "kavlan-13": "2001:660:4406:4a0:509:4::13",
-      "kavlan-14": "2001:660:4406:5a0:509:4::13",
-      "kavlan-16": "2001:660:4406:7a0:509:4::13",
-      "kavlan-18": "2001:660:4406:8a0:509:4::13",
-      "kavlan-2": "2001:660:4406:581:9:4::13",
-      "kavlan-20": "2001:660:4406:3a0:509:4::13",
-      "kavlan-21": "2001:660:4406:6a0:509:4::13",
-      "kavlan-3": "2001:660:4406:582:9:4::13",
-      "kavlan-4": "2001:660:4406:590:9:4::13",
-      "kavlan-5": "2001:660:4406:591:9:4::13",
-      "kavlan-6": "2001:660:4406:592:9:4::13",
-      "kavlan-7": "2001:660:4406:593:9:4::13",
-      "kavlan-8": "2001:660:4406:594:9:4::13",
-      "kavlan-9": "2001:660:4406:595:9:4::13"
+      "kavlan-1": "2001:660:4406:580:9:4:0:13",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:13",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:13",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:13",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:13",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:13",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:13",
+      "kavlan-2": "2001:660:4406:581:9:4:0:13",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:13",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:13",
+      "kavlan-3": "2001:660:4406:582:9:4:0:13",
+      "kavlan-4": "2001:660:4406:590:9:4:0:13",
+      "kavlan-5": "2001:660:4406:591:9:4:0:13",
+      "kavlan-6": "2001:660:4406:592:9:4:0:13",
+      "kavlan-7": "2001:660:4406:593:9:4:0:13",
+      "kavlan-8": "2001:660:4406:594:9:4:0:13",
+      "kavlan-9": "2001:660:4406:595:9:4:0:13"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.19",
-      "ip6": "2001:660:4406:500:9:0::13",
+      "ip6": "2001:660:4406:500:9::13",
       "kavlan": true,
       "mac": "24:6e:96:03:0f:a0",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.119",
-      "ip6": "2001:660:4406:500:9:1::13",
+      "ip6": "2001:660:4406:500:9:1:0:13",
       "kavlan": true,
       "mac": "24:6e:96:03:0f:a2",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.219",
-      "ip6": "2001:660:4406:500:9:2::13",
+      "ip6": "2001:660:4406:500:9:2:0:13",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:f4",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.119",
-      "ip6": "2001:660:4406:500:9:3::13",
+      "ip6": "2001:660:4406:500:9:3:0:13",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:f6",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.219",
-      "ip6": "2001:660:4406:500:9:4::13",
+      "ip6": "2001:660:4406:500:9:4:0:13",
       "kavlan": true,
       "mac": "24:6e:96:03:0f:a4",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-2.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-2.json
index 269e07b4c8c39e99a6ccaa8b9aff157d8eb1ec8f..c3a22d8cebdc0cdda267e62e9ad2ead258a8e2ae 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-2.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-2.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::2",
-      "kavlan-11": "2001:660:4406:1a0:509:0::2",
-      "kavlan-12": "2001:660:4406:2a0:509:0::2",
-      "kavlan-13": "2001:660:4406:4a0:509:0::2",
-      "kavlan-14": "2001:660:4406:5a0:509:0::2",
-      "kavlan-16": "2001:660:4406:7a0:509:0::2",
-      "kavlan-18": "2001:660:4406:8a0:509:0::2",
-      "kavlan-2": "2001:660:4406:581:9:0::2",
-      "kavlan-20": "2001:660:4406:3a0:509:0::2",
-      "kavlan-21": "2001:660:4406:6a0:509:0::2",
-      "kavlan-3": "2001:660:4406:582:9:0::2",
-      "kavlan-4": "2001:660:4406:590:9:0::2",
-      "kavlan-5": "2001:660:4406:591:9:0::2",
-      "kavlan-6": "2001:660:4406:592:9:0::2",
-      "kavlan-7": "2001:660:4406:593:9:0::2",
-      "kavlan-8": "2001:660:4406:594:9:0::2",
-      "kavlan-9": "2001:660:4406:595:9:0::2"
+      "kavlan-1": "2001:660:4406:580:9::2",
+      "kavlan-11": "2001:660:4406:1a0:509::2",
+      "kavlan-12": "2001:660:4406:2a0:509::2",
+      "kavlan-13": "2001:660:4406:4a0:509::2",
+      "kavlan-14": "2001:660:4406:5a0:509::2",
+      "kavlan-16": "2001:660:4406:7a0:509::2",
+      "kavlan-18": "2001:660:4406:8a0:509::2",
+      "kavlan-2": "2001:660:4406:581:9::2",
+      "kavlan-20": "2001:660:4406:3a0:509::2",
+      "kavlan-21": "2001:660:4406:6a0:509::2",
+      "kavlan-3": "2001:660:4406:582:9::2",
+      "kavlan-4": "2001:660:4406:590:9::2",
+      "kavlan-5": "2001:660:4406:591:9::2",
+      "kavlan-6": "2001:660:4406:592:9::2",
+      "kavlan-7": "2001:660:4406:593:9::2",
+      "kavlan-8": "2001:660:4406:594:9::2",
+      "kavlan-9": "2001:660:4406:595:9::2"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::2",
-      "kavlan-11": "2001:660:4406:1a0:509:1::2",
-      "kavlan-12": "2001:660:4406:2a0:509:1::2",
-      "kavlan-13": "2001:660:4406:4a0:509:1::2",
-      "kavlan-14": "2001:660:4406:5a0:509:1::2",
-      "kavlan-16": "2001:660:4406:7a0:509:1::2",
-      "kavlan-18": "2001:660:4406:8a0:509:1::2",
-      "kavlan-2": "2001:660:4406:581:9:1::2",
-      "kavlan-20": "2001:660:4406:3a0:509:1::2",
-      "kavlan-21": "2001:660:4406:6a0:509:1::2",
-      "kavlan-3": "2001:660:4406:582:9:1::2",
-      "kavlan-4": "2001:660:4406:590:9:1::2",
-      "kavlan-5": "2001:660:4406:591:9:1::2",
-      "kavlan-6": "2001:660:4406:592:9:1::2",
-      "kavlan-7": "2001:660:4406:593:9:1::2",
-      "kavlan-8": "2001:660:4406:594:9:1::2",
-      "kavlan-9": "2001:660:4406:595:9:1::2"
+      "kavlan-1": "2001:660:4406:580:9:1:0:2",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:2",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:2",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:2",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:2",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:2",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:2",
+      "kavlan-2": "2001:660:4406:581:9:1:0:2",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:2",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:2",
+      "kavlan-3": "2001:660:4406:582:9:1:0:2",
+      "kavlan-4": "2001:660:4406:590:9:1:0:2",
+      "kavlan-5": "2001:660:4406:591:9:1:0:2",
+      "kavlan-6": "2001:660:4406:592:9:1:0:2",
+      "kavlan-7": "2001:660:4406:593:9:1:0:2",
+      "kavlan-8": "2001:660:4406:594:9:1:0:2",
+      "kavlan-9": "2001:660:4406:595:9:1:0:2"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::2",
-      "kavlan-11": "2001:660:4406:1a0:509:2::2",
-      "kavlan-12": "2001:660:4406:2a0:509:2::2",
-      "kavlan-13": "2001:660:4406:4a0:509:2::2",
-      "kavlan-14": "2001:660:4406:5a0:509:2::2",
-      "kavlan-16": "2001:660:4406:7a0:509:2::2",
-      "kavlan-18": "2001:660:4406:8a0:509:2::2",
-      "kavlan-2": "2001:660:4406:581:9:2::2",
-      "kavlan-20": "2001:660:4406:3a0:509:2::2",
-      "kavlan-21": "2001:660:4406:6a0:509:2::2",
-      "kavlan-3": "2001:660:4406:582:9:2::2",
-      "kavlan-4": "2001:660:4406:590:9:2::2",
-      "kavlan-5": "2001:660:4406:591:9:2::2",
-      "kavlan-6": "2001:660:4406:592:9:2::2",
-      "kavlan-7": "2001:660:4406:593:9:2::2",
-      "kavlan-8": "2001:660:4406:594:9:2::2",
-      "kavlan-9": "2001:660:4406:595:9:2::2"
+      "kavlan-1": "2001:660:4406:580:9:2:0:2",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:2",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:2",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:2",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:2",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:2",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:2",
+      "kavlan-2": "2001:660:4406:581:9:2:0:2",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:2",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:2",
+      "kavlan-3": "2001:660:4406:582:9:2:0:2",
+      "kavlan-4": "2001:660:4406:590:9:2:0:2",
+      "kavlan-5": "2001:660:4406:591:9:2:0:2",
+      "kavlan-6": "2001:660:4406:592:9:2:0:2",
+      "kavlan-7": "2001:660:4406:593:9:2:0:2",
+      "kavlan-8": "2001:660:4406:594:9:2:0:2",
+      "kavlan-9": "2001:660:4406:595:9:2:0:2"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::2",
-      "kavlan-11": "2001:660:4406:1a0:509:3::2",
-      "kavlan-12": "2001:660:4406:2a0:509:3::2",
-      "kavlan-13": "2001:660:4406:4a0:509:3::2",
-      "kavlan-14": "2001:660:4406:5a0:509:3::2",
-      "kavlan-16": "2001:660:4406:7a0:509:3::2",
-      "kavlan-18": "2001:660:4406:8a0:509:3::2",
-      "kavlan-2": "2001:660:4406:581:9:3::2",
-      "kavlan-20": "2001:660:4406:3a0:509:3::2",
-      "kavlan-21": "2001:660:4406:6a0:509:3::2",
-      "kavlan-3": "2001:660:4406:582:9:3::2",
-      "kavlan-4": "2001:660:4406:590:9:3::2",
-      "kavlan-5": "2001:660:4406:591:9:3::2",
-      "kavlan-6": "2001:660:4406:592:9:3::2",
-      "kavlan-7": "2001:660:4406:593:9:3::2",
-      "kavlan-8": "2001:660:4406:594:9:3::2",
-      "kavlan-9": "2001:660:4406:595:9:3::2"
+      "kavlan-1": "2001:660:4406:580:9:3:0:2",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:2",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:2",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:2",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:2",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:2",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:2",
+      "kavlan-2": "2001:660:4406:581:9:3:0:2",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:2",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:2",
+      "kavlan-3": "2001:660:4406:582:9:3:0:2",
+      "kavlan-4": "2001:660:4406:590:9:3:0:2",
+      "kavlan-5": "2001:660:4406:591:9:3:0:2",
+      "kavlan-6": "2001:660:4406:592:9:3:0:2",
+      "kavlan-7": "2001:660:4406:593:9:3:0:2",
+      "kavlan-8": "2001:660:4406:594:9:3:0:2",
+      "kavlan-9": "2001:660:4406:595:9:3:0:2"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::2",
-      "kavlan-11": "2001:660:4406:1a0:509:4::2",
-      "kavlan-12": "2001:660:4406:2a0:509:4::2",
-      "kavlan-13": "2001:660:4406:4a0:509:4::2",
-      "kavlan-14": "2001:660:4406:5a0:509:4::2",
-      "kavlan-16": "2001:660:4406:7a0:509:4::2",
-      "kavlan-18": "2001:660:4406:8a0:509:4::2",
-      "kavlan-2": "2001:660:4406:581:9:4::2",
-      "kavlan-20": "2001:660:4406:3a0:509:4::2",
-      "kavlan-21": "2001:660:4406:6a0:509:4::2",
-      "kavlan-3": "2001:660:4406:582:9:4::2",
-      "kavlan-4": "2001:660:4406:590:9:4::2",
-      "kavlan-5": "2001:660:4406:591:9:4::2",
-      "kavlan-6": "2001:660:4406:592:9:4::2",
-      "kavlan-7": "2001:660:4406:593:9:4::2",
-      "kavlan-8": "2001:660:4406:594:9:4::2",
-      "kavlan-9": "2001:660:4406:595:9:4::2"
+      "kavlan-1": "2001:660:4406:580:9:4:0:2",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:2",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:2",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:2",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:2",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:2",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:2",
+      "kavlan-2": "2001:660:4406:581:9:4:0:2",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:2",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:2",
+      "kavlan-3": "2001:660:4406:582:9:4:0:2",
+      "kavlan-4": "2001:660:4406:590:9:4:0:2",
+      "kavlan-5": "2001:660:4406:591:9:4:0:2",
+      "kavlan-6": "2001:660:4406:592:9:4:0:2",
+      "kavlan-7": "2001:660:4406:593:9:4:0:2",
+      "kavlan-8": "2001:660:4406:594:9:4:0:2",
+      "kavlan-9": "2001:660:4406:595:9:4:0:2"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.2",
-      "ip6": "2001:660:4406:500:9:0::2",
+      "ip6": "2001:660:4406:500:9::2",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:98",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.102",
-      "ip6": "2001:660:4406:500:9:1::2",
+      "ip6": "2001:660:4406:500:9:1:0:2",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:9a",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.202",
-      "ip6": "2001:660:4406:500:9:2::2",
+      "ip6": "2001:660:4406:500:9:2:0:2",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:54",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.102",
-      "ip6": "2001:660:4406:500:9:3::2",
+      "ip6": "2001:660:4406:500:9:3:0:2",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:56",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.202",
-      "ip6": "2001:660:4406:500:9:4::2",
+      "ip6": "2001:660:4406:500:9:4:0:2",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:9c",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-20.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-20.json
index bd08aca9d0ea8ddea5622af95bc900038e22986a..d1a1f093f0d981724fa5354f815fc0195f6caa44 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-20.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-20.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::14",
-      "kavlan-11": "2001:660:4406:1a0:509:0::14",
-      "kavlan-12": "2001:660:4406:2a0:509:0::14",
-      "kavlan-13": "2001:660:4406:4a0:509:0::14",
-      "kavlan-14": "2001:660:4406:5a0:509:0::14",
-      "kavlan-16": "2001:660:4406:7a0:509:0::14",
-      "kavlan-18": "2001:660:4406:8a0:509:0::14",
-      "kavlan-2": "2001:660:4406:581:9:0::14",
-      "kavlan-20": "2001:660:4406:3a0:509:0::14",
-      "kavlan-21": "2001:660:4406:6a0:509:0::14",
-      "kavlan-3": "2001:660:4406:582:9:0::14",
-      "kavlan-4": "2001:660:4406:590:9:0::14",
-      "kavlan-5": "2001:660:4406:591:9:0::14",
-      "kavlan-6": "2001:660:4406:592:9:0::14",
-      "kavlan-7": "2001:660:4406:593:9:0::14",
-      "kavlan-8": "2001:660:4406:594:9:0::14",
-      "kavlan-9": "2001:660:4406:595:9:0::14"
+      "kavlan-1": "2001:660:4406:580:9::14",
+      "kavlan-11": "2001:660:4406:1a0:509::14",
+      "kavlan-12": "2001:660:4406:2a0:509::14",
+      "kavlan-13": "2001:660:4406:4a0:509::14",
+      "kavlan-14": "2001:660:4406:5a0:509::14",
+      "kavlan-16": "2001:660:4406:7a0:509::14",
+      "kavlan-18": "2001:660:4406:8a0:509::14",
+      "kavlan-2": "2001:660:4406:581:9::14",
+      "kavlan-20": "2001:660:4406:3a0:509::14",
+      "kavlan-21": "2001:660:4406:6a0:509::14",
+      "kavlan-3": "2001:660:4406:582:9::14",
+      "kavlan-4": "2001:660:4406:590:9::14",
+      "kavlan-5": "2001:660:4406:591:9::14",
+      "kavlan-6": "2001:660:4406:592:9::14",
+      "kavlan-7": "2001:660:4406:593:9::14",
+      "kavlan-8": "2001:660:4406:594:9::14",
+      "kavlan-9": "2001:660:4406:595:9::14"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::14",
-      "kavlan-11": "2001:660:4406:1a0:509:1::14",
-      "kavlan-12": "2001:660:4406:2a0:509:1::14",
-      "kavlan-13": "2001:660:4406:4a0:509:1::14",
-      "kavlan-14": "2001:660:4406:5a0:509:1::14",
-      "kavlan-16": "2001:660:4406:7a0:509:1::14",
-      "kavlan-18": "2001:660:4406:8a0:509:1::14",
-      "kavlan-2": "2001:660:4406:581:9:1::14",
-      "kavlan-20": "2001:660:4406:3a0:509:1::14",
-      "kavlan-21": "2001:660:4406:6a0:509:1::14",
-      "kavlan-3": "2001:660:4406:582:9:1::14",
-      "kavlan-4": "2001:660:4406:590:9:1::14",
-      "kavlan-5": "2001:660:4406:591:9:1::14",
-      "kavlan-6": "2001:660:4406:592:9:1::14",
-      "kavlan-7": "2001:660:4406:593:9:1::14",
-      "kavlan-8": "2001:660:4406:594:9:1::14",
-      "kavlan-9": "2001:660:4406:595:9:1::14"
+      "kavlan-1": "2001:660:4406:580:9:1:0:14",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:14",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:14",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:14",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:14",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:14",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:14",
+      "kavlan-2": "2001:660:4406:581:9:1:0:14",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:14",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:14",
+      "kavlan-3": "2001:660:4406:582:9:1:0:14",
+      "kavlan-4": "2001:660:4406:590:9:1:0:14",
+      "kavlan-5": "2001:660:4406:591:9:1:0:14",
+      "kavlan-6": "2001:660:4406:592:9:1:0:14",
+      "kavlan-7": "2001:660:4406:593:9:1:0:14",
+      "kavlan-8": "2001:660:4406:594:9:1:0:14",
+      "kavlan-9": "2001:660:4406:595:9:1:0:14"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::14",
-      "kavlan-11": "2001:660:4406:1a0:509:2::14",
-      "kavlan-12": "2001:660:4406:2a0:509:2::14",
-      "kavlan-13": "2001:660:4406:4a0:509:2::14",
-      "kavlan-14": "2001:660:4406:5a0:509:2::14",
-      "kavlan-16": "2001:660:4406:7a0:509:2::14",
-      "kavlan-18": "2001:660:4406:8a0:509:2::14",
-      "kavlan-2": "2001:660:4406:581:9:2::14",
-      "kavlan-20": "2001:660:4406:3a0:509:2::14",
-      "kavlan-21": "2001:660:4406:6a0:509:2::14",
-      "kavlan-3": "2001:660:4406:582:9:2::14",
-      "kavlan-4": "2001:660:4406:590:9:2::14",
-      "kavlan-5": "2001:660:4406:591:9:2::14",
-      "kavlan-6": "2001:660:4406:592:9:2::14",
-      "kavlan-7": "2001:660:4406:593:9:2::14",
-      "kavlan-8": "2001:660:4406:594:9:2::14",
-      "kavlan-9": "2001:660:4406:595:9:2::14"
+      "kavlan-1": "2001:660:4406:580:9:2:0:14",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:14",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:14",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:14",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:14",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:14",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:14",
+      "kavlan-2": "2001:660:4406:581:9:2:0:14",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:14",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:14",
+      "kavlan-3": "2001:660:4406:582:9:2:0:14",
+      "kavlan-4": "2001:660:4406:590:9:2:0:14",
+      "kavlan-5": "2001:660:4406:591:9:2:0:14",
+      "kavlan-6": "2001:660:4406:592:9:2:0:14",
+      "kavlan-7": "2001:660:4406:593:9:2:0:14",
+      "kavlan-8": "2001:660:4406:594:9:2:0:14",
+      "kavlan-9": "2001:660:4406:595:9:2:0:14"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::14",
-      "kavlan-11": "2001:660:4406:1a0:509:3::14",
-      "kavlan-12": "2001:660:4406:2a0:509:3::14",
-      "kavlan-13": "2001:660:4406:4a0:509:3::14",
-      "kavlan-14": "2001:660:4406:5a0:509:3::14",
-      "kavlan-16": "2001:660:4406:7a0:509:3::14",
-      "kavlan-18": "2001:660:4406:8a0:509:3::14",
-      "kavlan-2": "2001:660:4406:581:9:3::14",
-      "kavlan-20": "2001:660:4406:3a0:509:3::14",
-      "kavlan-21": "2001:660:4406:6a0:509:3::14",
-      "kavlan-3": "2001:660:4406:582:9:3::14",
-      "kavlan-4": "2001:660:4406:590:9:3::14",
-      "kavlan-5": "2001:660:4406:591:9:3::14",
-      "kavlan-6": "2001:660:4406:592:9:3::14",
-      "kavlan-7": "2001:660:4406:593:9:3::14",
-      "kavlan-8": "2001:660:4406:594:9:3::14",
-      "kavlan-9": "2001:660:4406:595:9:3::14"
+      "kavlan-1": "2001:660:4406:580:9:3:0:14",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:14",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:14",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:14",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:14",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:14",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:14",
+      "kavlan-2": "2001:660:4406:581:9:3:0:14",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:14",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:14",
+      "kavlan-3": "2001:660:4406:582:9:3:0:14",
+      "kavlan-4": "2001:660:4406:590:9:3:0:14",
+      "kavlan-5": "2001:660:4406:591:9:3:0:14",
+      "kavlan-6": "2001:660:4406:592:9:3:0:14",
+      "kavlan-7": "2001:660:4406:593:9:3:0:14",
+      "kavlan-8": "2001:660:4406:594:9:3:0:14",
+      "kavlan-9": "2001:660:4406:595:9:3:0:14"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::14",
-      "kavlan-11": "2001:660:4406:1a0:509:4::14",
-      "kavlan-12": "2001:660:4406:2a0:509:4::14",
-      "kavlan-13": "2001:660:4406:4a0:509:4::14",
-      "kavlan-14": "2001:660:4406:5a0:509:4::14",
-      "kavlan-16": "2001:660:4406:7a0:509:4::14",
-      "kavlan-18": "2001:660:4406:8a0:509:4::14",
-      "kavlan-2": "2001:660:4406:581:9:4::14",
-      "kavlan-20": "2001:660:4406:3a0:509:4::14",
-      "kavlan-21": "2001:660:4406:6a0:509:4::14",
-      "kavlan-3": "2001:660:4406:582:9:4::14",
-      "kavlan-4": "2001:660:4406:590:9:4::14",
-      "kavlan-5": "2001:660:4406:591:9:4::14",
-      "kavlan-6": "2001:660:4406:592:9:4::14",
-      "kavlan-7": "2001:660:4406:593:9:4::14",
-      "kavlan-8": "2001:660:4406:594:9:4::14",
-      "kavlan-9": "2001:660:4406:595:9:4::14"
+      "kavlan-1": "2001:660:4406:580:9:4:0:14",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:14",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:14",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:14",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:14",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:14",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:14",
+      "kavlan-2": "2001:660:4406:581:9:4:0:14",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:14",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:14",
+      "kavlan-3": "2001:660:4406:582:9:4:0:14",
+      "kavlan-4": "2001:660:4406:590:9:4:0:14",
+      "kavlan-5": "2001:660:4406:591:9:4:0:14",
+      "kavlan-6": "2001:660:4406:592:9:4:0:14",
+      "kavlan-7": "2001:660:4406:593:9:4:0:14",
+      "kavlan-8": "2001:660:4406:594:9:4:0:14",
+      "kavlan-9": "2001:660:4406:595:9:4:0:14"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.20",
-      "ip6": "2001:660:4406:500:9:0::14",
+      "ip6": "2001:660:4406:500:9::14",
       "kavlan": true,
       "mac": "24:6e:96:03:09:d8",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.120",
-      "ip6": "2001:660:4406:500:9:1::14",
+      "ip6": "2001:660:4406:500:9:1:0:14",
       "kavlan": true,
       "mac": "24:6e:96:03:09:da",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.220",
-      "ip6": "2001:660:4406:500:9:2::14",
+      "ip6": "2001:660:4406:500:9:2:0:14",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:ec",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.120",
-      "ip6": "2001:660:4406:500:9:3::14",
+      "ip6": "2001:660:4406:500:9:3:0:14",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:ee",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.220",
-      "ip6": "2001:660:4406:500:9:4::14",
+      "ip6": "2001:660:4406:500:9:4:0:14",
       "kavlan": true,
       "mac": "24:6e:96:03:09:dc",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-21.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-21.json
index 9df02c8d8d545598b7922721f83b4853333af8df..ad7192db340b02eb62bb610814e707788093fb98 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-21.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-21.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::15",
-      "kavlan-11": "2001:660:4406:1a0:509:0::15",
-      "kavlan-12": "2001:660:4406:2a0:509:0::15",
-      "kavlan-13": "2001:660:4406:4a0:509:0::15",
-      "kavlan-14": "2001:660:4406:5a0:509:0::15",
-      "kavlan-16": "2001:660:4406:7a0:509:0::15",
-      "kavlan-18": "2001:660:4406:8a0:509:0::15",
-      "kavlan-2": "2001:660:4406:581:9:0::15",
-      "kavlan-20": "2001:660:4406:3a0:509:0::15",
-      "kavlan-21": "2001:660:4406:6a0:509:0::15",
-      "kavlan-3": "2001:660:4406:582:9:0::15",
-      "kavlan-4": "2001:660:4406:590:9:0::15",
-      "kavlan-5": "2001:660:4406:591:9:0::15",
-      "kavlan-6": "2001:660:4406:592:9:0::15",
-      "kavlan-7": "2001:660:4406:593:9:0::15",
-      "kavlan-8": "2001:660:4406:594:9:0::15",
-      "kavlan-9": "2001:660:4406:595:9:0::15"
+      "kavlan-1": "2001:660:4406:580:9::15",
+      "kavlan-11": "2001:660:4406:1a0:509::15",
+      "kavlan-12": "2001:660:4406:2a0:509::15",
+      "kavlan-13": "2001:660:4406:4a0:509::15",
+      "kavlan-14": "2001:660:4406:5a0:509::15",
+      "kavlan-16": "2001:660:4406:7a0:509::15",
+      "kavlan-18": "2001:660:4406:8a0:509::15",
+      "kavlan-2": "2001:660:4406:581:9::15",
+      "kavlan-20": "2001:660:4406:3a0:509::15",
+      "kavlan-21": "2001:660:4406:6a0:509::15",
+      "kavlan-3": "2001:660:4406:582:9::15",
+      "kavlan-4": "2001:660:4406:590:9::15",
+      "kavlan-5": "2001:660:4406:591:9::15",
+      "kavlan-6": "2001:660:4406:592:9::15",
+      "kavlan-7": "2001:660:4406:593:9::15",
+      "kavlan-8": "2001:660:4406:594:9::15",
+      "kavlan-9": "2001:660:4406:595:9::15"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::15",
-      "kavlan-11": "2001:660:4406:1a0:509:1::15",
-      "kavlan-12": "2001:660:4406:2a0:509:1::15",
-      "kavlan-13": "2001:660:4406:4a0:509:1::15",
-      "kavlan-14": "2001:660:4406:5a0:509:1::15",
-      "kavlan-16": "2001:660:4406:7a0:509:1::15",
-      "kavlan-18": "2001:660:4406:8a0:509:1::15",
-      "kavlan-2": "2001:660:4406:581:9:1::15",
-      "kavlan-20": "2001:660:4406:3a0:509:1::15",
-      "kavlan-21": "2001:660:4406:6a0:509:1::15",
-      "kavlan-3": "2001:660:4406:582:9:1::15",
-      "kavlan-4": "2001:660:4406:590:9:1::15",
-      "kavlan-5": "2001:660:4406:591:9:1::15",
-      "kavlan-6": "2001:660:4406:592:9:1::15",
-      "kavlan-7": "2001:660:4406:593:9:1::15",
-      "kavlan-8": "2001:660:4406:594:9:1::15",
-      "kavlan-9": "2001:660:4406:595:9:1::15"
+      "kavlan-1": "2001:660:4406:580:9:1:0:15",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:15",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:15",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:15",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:15",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:15",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:15",
+      "kavlan-2": "2001:660:4406:581:9:1:0:15",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:15",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:15",
+      "kavlan-3": "2001:660:4406:582:9:1:0:15",
+      "kavlan-4": "2001:660:4406:590:9:1:0:15",
+      "kavlan-5": "2001:660:4406:591:9:1:0:15",
+      "kavlan-6": "2001:660:4406:592:9:1:0:15",
+      "kavlan-7": "2001:660:4406:593:9:1:0:15",
+      "kavlan-8": "2001:660:4406:594:9:1:0:15",
+      "kavlan-9": "2001:660:4406:595:9:1:0:15"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::15",
-      "kavlan-11": "2001:660:4406:1a0:509:2::15",
-      "kavlan-12": "2001:660:4406:2a0:509:2::15",
-      "kavlan-13": "2001:660:4406:4a0:509:2::15",
-      "kavlan-14": "2001:660:4406:5a0:509:2::15",
-      "kavlan-16": "2001:660:4406:7a0:509:2::15",
-      "kavlan-18": "2001:660:4406:8a0:509:2::15",
-      "kavlan-2": "2001:660:4406:581:9:2::15",
-      "kavlan-20": "2001:660:4406:3a0:509:2::15",
-      "kavlan-21": "2001:660:4406:6a0:509:2::15",
-      "kavlan-3": "2001:660:4406:582:9:2::15",
-      "kavlan-4": "2001:660:4406:590:9:2::15",
-      "kavlan-5": "2001:660:4406:591:9:2::15",
-      "kavlan-6": "2001:660:4406:592:9:2::15",
-      "kavlan-7": "2001:660:4406:593:9:2::15",
-      "kavlan-8": "2001:660:4406:594:9:2::15",
-      "kavlan-9": "2001:660:4406:595:9:2::15"
+      "kavlan-1": "2001:660:4406:580:9:2:0:15",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:15",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:15",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:15",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:15",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:15",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:15",
+      "kavlan-2": "2001:660:4406:581:9:2:0:15",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:15",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:15",
+      "kavlan-3": "2001:660:4406:582:9:2:0:15",
+      "kavlan-4": "2001:660:4406:590:9:2:0:15",
+      "kavlan-5": "2001:660:4406:591:9:2:0:15",
+      "kavlan-6": "2001:660:4406:592:9:2:0:15",
+      "kavlan-7": "2001:660:4406:593:9:2:0:15",
+      "kavlan-8": "2001:660:4406:594:9:2:0:15",
+      "kavlan-9": "2001:660:4406:595:9:2:0:15"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::15",
-      "kavlan-11": "2001:660:4406:1a0:509:3::15",
-      "kavlan-12": "2001:660:4406:2a0:509:3::15",
-      "kavlan-13": "2001:660:4406:4a0:509:3::15",
-      "kavlan-14": "2001:660:4406:5a0:509:3::15",
-      "kavlan-16": "2001:660:4406:7a0:509:3::15",
-      "kavlan-18": "2001:660:4406:8a0:509:3::15",
-      "kavlan-2": "2001:660:4406:581:9:3::15",
-      "kavlan-20": "2001:660:4406:3a0:509:3::15",
-      "kavlan-21": "2001:660:4406:6a0:509:3::15",
-      "kavlan-3": "2001:660:4406:582:9:3::15",
-      "kavlan-4": "2001:660:4406:590:9:3::15",
-      "kavlan-5": "2001:660:4406:591:9:3::15",
-      "kavlan-6": "2001:660:4406:592:9:3::15",
-      "kavlan-7": "2001:660:4406:593:9:3::15",
-      "kavlan-8": "2001:660:4406:594:9:3::15",
-      "kavlan-9": "2001:660:4406:595:9:3::15"
+      "kavlan-1": "2001:660:4406:580:9:3:0:15",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:15",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:15",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:15",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:15",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:15",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:15",
+      "kavlan-2": "2001:660:4406:581:9:3:0:15",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:15",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:15",
+      "kavlan-3": "2001:660:4406:582:9:3:0:15",
+      "kavlan-4": "2001:660:4406:590:9:3:0:15",
+      "kavlan-5": "2001:660:4406:591:9:3:0:15",
+      "kavlan-6": "2001:660:4406:592:9:3:0:15",
+      "kavlan-7": "2001:660:4406:593:9:3:0:15",
+      "kavlan-8": "2001:660:4406:594:9:3:0:15",
+      "kavlan-9": "2001:660:4406:595:9:3:0:15"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::15",
-      "kavlan-11": "2001:660:4406:1a0:509:4::15",
-      "kavlan-12": "2001:660:4406:2a0:509:4::15",
-      "kavlan-13": "2001:660:4406:4a0:509:4::15",
-      "kavlan-14": "2001:660:4406:5a0:509:4::15",
-      "kavlan-16": "2001:660:4406:7a0:509:4::15",
-      "kavlan-18": "2001:660:4406:8a0:509:4::15",
-      "kavlan-2": "2001:660:4406:581:9:4::15",
-      "kavlan-20": "2001:660:4406:3a0:509:4::15",
-      "kavlan-21": "2001:660:4406:6a0:509:4::15",
-      "kavlan-3": "2001:660:4406:582:9:4::15",
-      "kavlan-4": "2001:660:4406:590:9:4::15",
-      "kavlan-5": "2001:660:4406:591:9:4::15",
-      "kavlan-6": "2001:660:4406:592:9:4::15",
-      "kavlan-7": "2001:660:4406:593:9:4::15",
-      "kavlan-8": "2001:660:4406:594:9:4::15",
-      "kavlan-9": "2001:660:4406:595:9:4::15"
+      "kavlan-1": "2001:660:4406:580:9:4:0:15",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:15",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:15",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:15",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:15",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:15",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:15",
+      "kavlan-2": "2001:660:4406:581:9:4:0:15",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:15",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:15",
+      "kavlan-3": "2001:660:4406:582:9:4:0:15",
+      "kavlan-4": "2001:660:4406:590:9:4:0:15",
+      "kavlan-5": "2001:660:4406:591:9:4:0:15",
+      "kavlan-6": "2001:660:4406:592:9:4:0:15",
+      "kavlan-7": "2001:660:4406:593:9:4:0:15",
+      "kavlan-8": "2001:660:4406:594:9:4:0:15",
+      "kavlan-9": "2001:660:4406:595:9:4:0:15"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.21",
-      "ip6": "2001:660:4406:500:9:0::15",
+      "ip6": "2001:660:4406:500:9::15",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:10",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.121",
-      "ip6": "2001:660:4406:500:9:1::15",
+      "ip6": "2001:660:4406:500:9:1:0:15",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:12",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.221",
-      "ip6": "2001:660:4406:500:9:2::15",
+      "ip6": "2001:660:4406:500:9:2:0:15",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:fc",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.121",
-      "ip6": "2001:660:4406:500:9:3::15",
+      "ip6": "2001:660:4406:500:9:3:0:15",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:fe",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.221",
-      "ip6": "2001:660:4406:500:9:4::15",
+      "ip6": "2001:660:4406:500:9:4:0:15",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:14",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-22.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-22.json
index c94ec624d4375920f0ddce02494cdff4f89ba58f..b396191773b3487c8282ac016f08d7ef9dd15263 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-22.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-22.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::16",
-      "kavlan-11": "2001:660:4406:1a0:509:0::16",
-      "kavlan-12": "2001:660:4406:2a0:509:0::16",
-      "kavlan-13": "2001:660:4406:4a0:509:0::16",
-      "kavlan-14": "2001:660:4406:5a0:509:0::16",
-      "kavlan-16": "2001:660:4406:7a0:509:0::16",
-      "kavlan-18": "2001:660:4406:8a0:509:0::16",
-      "kavlan-2": "2001:660:4406:581:9:0::16",
-      "kavlan-20": "2001:660:4406:3a0:509:0::16",
-      "kavlan-21": "2001:660:4406:6a0:509:0::16",
-      "kavlan-3": "2001:660:4406:582:9:0::16",
-      "kavlan-4": "2001:660:4406:590:9:0::16",
-      "kavlan-5": "2001:660:4406:591:9:0::16",
-      "kavlan-6": "2001:660:4406:592:9:0::16",
-      "kavlan-7": "2001:660:4406:593:9:0::16",
-      "kavlan-8": "2001:660:4406:594:9:0::16",
-      "kavlan-9": "2001:660:4406:595:9:0::16"
+      "kavlan-1": "2001:660:4406:580:9::16",
+      "kavlan-11": "2001:660:4406:1a0:509::16",
+      "kavlan-12": "2001:660:4406:2a0:509::16",
+      "kavlan-13": "2001:660:4406:4a0:509::16",
+      "kavlan-14": "2001:660:4406:5a0:509::16",
+      "kavlan-16": "2001:660:4406:7a0:509::16",
+      "kavlan-18": "2001:660:4406:8a0:509::16",
+      "kavlan-2": "2001:660:4406:581:9::16",
+      "kavlan-20": "2001:660:4406:3a0:509::16",
+      "kavlan-21": "2001:660:4406:6a0:509::16",
+      "kavlan-3": "2001:660:4406:582:9::16",
+      "kavlan-4": "2001:660:4406:590:9::16",
+      "kavlan-5": "2001:660:4406:591:9::16",
+      "kavlan-6": "2001:660:4406:592:9::16",
+      "kavlan-7": "2001:660:4406:593:9::16",
+      "kavlan-8": "2001:660:4406:594:9::16",
+      "kavlan-9": "2001:660:4406:595:9::16"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::16",
-      "kavlan-11": "2001:660:4406:1a0:509:1::16",
-      "kavlan-12": "2001:660:4406:2a0:509:1::16",
-      "kavlan-13": "2001:660:4406:4a0:509:1::16",
-      "kavlan-14": "2001:660:4406:5a0:509:1::16",
-      "kavlan-16": "2001:660:4406:7a0:509:1::16",
-      "kavlan-18": "2001:660:4406:8a0:509:1::16",
-      "kavlan-2": "2001:660:4406:581:9:1::16",
-      "kavlan-20": "2001:660:4406:3a0:509:1::16",
-      "kavlan-21": "2001:660:4406:6a0:509:1::16",
-      "kavlan-3": "2001:660:4406:582:9:1::16",
-      "kavlan-4": "2001:660:4406:590:9:1::16",
-      "kavlan-5": "2001:660:4406:591:9:1::16",
-      "kavlan-6": "2001:660:4406:592:9:1::16",
-      "kavlan-7": "2001:660:4406:593:9:1::16",
-      "kavlan-8": "2001:660:4406:594:9:1::16",
-      "kavlan-9": "2001:660:4406:595:9:1::16"
+      "kavlan-1": "2001:660:4406:580:9:1:0:16",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:16",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:16",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:16",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:16",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:16",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:16",
+      "kavlan-2": "2001:660:4406:581:9:1:0:16",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:16",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:16",
+      "kavlan-3": "2001:660:4406:582:9:1:0:16",
+      "kavlan-4": "2001:660:4406:590:9:1:0:16",
+      "kavlan-5": "2001:660:4406:591:9:1:0:16",
+      "kavlan-6": "2001:660:4406:592:9:1:0:16",
+      "kavlan-7": "2001:660:4406:593:9:1:0:16",
+      "kavlan-8": "2001:660:4406:594:9:1:0:16",
+      "kavlan-9": "2001:660:4406:595:9:1:0:16"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::16",
-      "kavlan-11": "2001:660:4406:1a0:509:2::16",
-      "kavlan-12": "2001:660:4406:2a0:509:2::16",
-      "kavlan-13": "2001:660:4406:4a0:509:2::16",
-      "kavlan-14": "2001:660:4406:5a0:509:2::16",
-      "kavlan-16": "2001:660:4406:7a0:509:2::16",
-      "kavlan-18": "2001:660:4406:8a0:509:2::16",
-      "kavlan-2": "2001:660:4406:581:9:2::16",
-      "kavlan-20": "2001:660:4406:3a0:509:2::16",
-      "kavlan-21": "2001:660:4406:6a0:509:2::16",
-      "kavlan-3": "2001:660:4406:582:9:2::16",
-      "kavlan-4": "2001:660:4406:590:9:2::16",
-      "kavlan-5": "2001:660:4406:591:9:2::16",
-      "kavlan-6": "2001:660:4406:592:9:2::16",
-      "kavlan-7": "2001:660:4406:593:9:2::16",
-      "kavlan-8": "2001:660:4406:594:9:2::16",
-      "kavlan-9": "2001:660:4406:595:9:2::16"
+      "kavlan-1": "2001:660:4406:580:9:2:0:16",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:16",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:16",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:16",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:16",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:16",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:16",
+      "kavlan-2": "2001:660:4406:581:9:2:0:16",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:16",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:16",
+      "kavlan-3": "2001:660:4406:582:9:2:0:16",
+      "kavlan-4": "2001:660:4406:590:9:2:0:16",
+      "kavlan-5": "2001:660:4406:591:9:2:0:16",
+      "kavlan-6": "2001:660:4406:592:9:2:0:16",
+      "kavlan-7": "2001:660:4406:593:9:2:0:16",
+      "kavlan-8": "2001:660:4406:594:9:2:0:16",
+      "kavlan-9": "2001:660:4406:595:9:2:0:16"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::16",
-      "kavlan-11": "2001:660:4406:1a0:509:3::16",
-      "kavlan-12": "2001:660:4406:2a0:509:3::16",
-      "kavlan-13": "2001:660:4406:4a0:509:3::16",
-      "kavlan-14": "2001:660:4406:5a0:509:3::16",
-      "kavlan-16": "2001:660:4406:7a0:509:3::16",
-      "kavlan-18": "2001:660:4406:8a0:509:3::16",
-      "kavlan-2": "2001:660:4406:581:9:3::16",
-      "kavlan-20": "2001:660:4406:3a0:509:3::16",
-      "kavlan-21": "2001:660:4406:6a0:509:3::16",
-      "kavlan-3": "2001:660:4406:582:9:3::16",
-      "kavlan-4": "2001:660:4406:590:9:3::16",
-      "kavlan-5": "2001:660:4406:591:9:3::16",
-      "kavlan-6": "2001:660:4406:592:9:3::16",
-      "kavlan-7": "2001:660:4406:593:9:3::16",
-      "kavlan-8": "2001:660:4406:594:9:3::16",
-      "kavlan-9": "2001:660:4406:595:9:3::16"
+      "kavlan-1": "2001:660:4406:580:9:3:0:16",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:16",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:16",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:16",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:16",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:16",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:16",
+      "kavlan-2": "2001:660:4406:581:9:3:0:16",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:16",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:16",
+      "kavlan-3": "2001:660:4406:582:9:3:0:16",
+      "kavlan-4": "2001:660:4406:590:9:3:0:16",
+      "kavlan-5": "2001:660:4406:591:9:3:0:16",
+      "kavlan-6": "2001:660:4406:592:9:3:0:16",
+      "kavlan-7": "2001:660:4406:593:9:3:0:16",
+      "kavlan-8": "2001:660:4406:594:9:3:0:16",
+      "kavlan-9": "2001:660:4406:595:9:3:0:16"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::16",
-      "kavlan-11": "2001:660:4406:1a0:509:4::16",
-      "kavlan-12": "2001:660:4406:2a0:509:4::16",
-      "kavlan-13": "2001:660:4406:4a0:509:4::16",
-      "kavlan-14": "2001:660:4406:5a0:509:4::16",
-      "kavlan-16": "2001:660:4406:7a0:509:4::16",
-      "kavlan-18": "2001:660:4406:8a0:509:4::16",
-      "kavlan-2": "2001:660:4406:581:9:4::16",
-      "kavlan-20": "2001:660:4406:3a0:509:4::16",
-      "kavlan-21": "2001:660:4406:6a0:509:4::16",
-      "kavlan-3": "2001:660:4406:582:9:4::16",
-      "kavlan-4": "2001:660:4406:590:9:4::16",
-      "kavlan-5": "2001:660:4406:591:9:4::16",
-      "kavlan-6": "2001:660:4406:592:9:4::16",
-      "kavlan-7": "2001:660:4406:593:9:4::16",
-      "kavlan-8": "2001:660:4406:594:9:4::16",
-      "kavlan-9": "2001:660:4406:595:9:4::16"
+      "kavlan-1": "2001:660:4406:580:9:4:0:16",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:16",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:16",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:16",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:16",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:16",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:16",
+      "kavlan-2": "2001:660:4406:581:9:4:0:16",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:16",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:16",
+      "kavlan-3": "2001:660:4406:582:9:4:0:16",
+      "kavlan-4": "2001:660:4406:590:9:4:0:16",
+      "kavlan-5": "2001:660:4406:591:9:4:0:16",
+      "kavlan-6": "2001:660:4406:592:9:4:0:16",
+      "kavlan-7": "2001:660:4406:593:9:4:0:16",
+      "kavlan-8": "2001:660:4406:594:9:4:0:16",
+      "kavlan-9": "2001:660:4406:595:9:4:0:16"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.22",
-      "ip6": "2001:660:4406:500:9:0::16",
+      "ip6": "2001:660:4406:500:9::16",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:68",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.122",
-      "ip6": "2001:660:4406:500:9:1::16",
+      "ip6": "2001:660:4406:500:9:1:0:16",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:6a",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.222",
-      "ip6": "2001:660:4406:500:9:2::16",
+      "ip6": "2001:660:4406:500:9:2:0:16",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4d:e8",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.122",
-      "ip6": "2001:660:4406:500:9:3::16",
+      "ip6": "2001:660:4406:500:9:3:0:16",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4d:ea",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.222",
-      "ip6": "2001:660:4406:500:9:4::16",
+      "ip6": "2001:660:4406:500:9:4:0:16",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:6c",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-23.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-23.json
index 2891a807160b9484b5113e599eb3b6a9f017966c..bc0e5d51b8d7db57cb7a395f2ae8d7a99d87879b 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-23.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-23.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::17",
-      "kavlan-11": "2001:660:4406:1a0:509:0::17",
-      "kavlan-12": "2001:660:4406:2a0:509:0::17",
-      "kavlan-13": "2001:660:4406:4a0:509:0::17",
-      "kavlan-14": "2001:660:4406:5a0:509:0::17",
-      "kavlan-16": "2001:660:4406:7a0:509:0::17",
-      "kavlan-18": "2001:660:4406:8a0:509:0::17",
-      "kavlan-2": "2001:660:4406:581:9:0::17",
-      "kavlan-20": "2001:660:4406:3a0:509:0::17",
-      "kavlan-21": "2001:660:4406:6a0:509:0::17",
-      "kavlan-3": "2001:660:4406:582:9:0::17",
-      "kavlan-4": "2001:660:4406:590:9:0::17",
-      "kavlan-5": "2001:660:4406:591:9:0::17",
-      "kavlan-6": "2001:660:4406:592:9:0::17",
-      "kavlan-7": "2001:660:4406:593:9:0::17",
-      "kavlan-8": "2001:660:4406:594:9:0::17",
-      "kavlan-9": "2001:660:4406:595:9:0::17"
+      "kavlan-1": "2001:660:4406:580:9::17",
+      "kavlan-11": "2001:660:4406:1a0:509::17",
+      "kavlan-12": "2001:660:4406:2a0:509::17",
+      "kavlan-13": "2001:660:4406:4a0:509::17",
+      "kavlan-14": "2001:660:4406:5a0:509::17",
+      "kavlan-16": "2001:660:4406:7a0:509::17",
+      "kavlan-18": "2001:660:4406:8a0:509::17",
+      "kavlan-2": "2001:660:4406:581:9::17",
+      "kavlan-20": "2001:660:4406:3a0:509::17",
+      "kavlan-21": "2001:660:4406:6a0:509::17",
+      "kavlan-3": "2001:660:4406:582:9::17",
+      "kavlan-4": "2001:660:4406:590:9::17",
+      "kavlan-5": "2001:660:4406:591:9::17",
+      "kavlan-6": "2001:660:4406:592:9::17",
+      "kavlan-7": "2001:660:4406:593:9::17",
+      "kavlan-8": "2001:660:4406:594:9::17",
+      "kavlan-9": "2001:660:4406:595:9::17"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::17",
-      "kavlan-11": "2001:660:4406:1a0:509:1::17",
-      "kavlan-12": "2001:660:4406:2a0:509:1::17",
-      "kavlan-13": "2001:660:4406:4a0:509:1::17",
-      "kavlan-14": "2001:660:4406:5a0:509:1::17",
-      "kavlan-16": "2001:660:4406:7a0:509:1::17",
-      "kavlan-18": "2001:660:4406:8a0:509:1::17",
-      "kavlan-2": "2001:660:4406:581:9:1::17",
-      "kavlan-20": "2001:660:4406:3a0:509:1::17",
-      "kavlan-21": "2001:660:4406:6a0:509:1::17",
-      "kavlan-3": "2001:660:4406:582:9:1::17",
-      "kavlan-4": "2001:660:4406:590:9:1::17",
-      "kavlan-5": "2001:660:4406:591:9:1::17",
-      "kavlan-6": "2001:660:4406:592:9:1::17",
-      "kavlan-7": "2001:660:4406:593:9:1::17",
-      "kavlan-8": "2001:660:4406:594:9:1::17",
-      "kavlan-9": "2001:660:4406:595:9:1::17"
+      "kavlan-1": "2001:660:4406:580:9:1:0:17",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:17",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:17",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:17",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:17",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:17",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:17",
+      "kavlan-2": "2001:660:4406:581:9:1:0:17",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:17",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:17",
+      "kavlan-3": "2001:660:4406:582:9:1:0:17",
+      "kavlan-4": "2001:660:4406:590:9:1:0:17",
+      "kavlan-5": "2001:660:4406:591:9:1:0:17",
+      "kavlan-6": "2001:660:4406:592:9:1:0:17",
+      "kavlan-7": "2001:660:4406:593:9:1:0:17",
+      "kavlan-8": "2001:660:4406:594:9:1:0:17",
+      "kavlan-9": "2001:660:4406:595:9:1:0:17"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::17",
-      "kavlan-11": "2001:660:4406:1a0:509:2::17",
-      "kavlan-12": "2001:660:4406:2a0:509:2::17",
-      "kavlan-13": "2001:660:4406:4a0:509:2::17",
-      "kavlan-14": "2001:660:4406:5a0:509:2::17",
-      "kavlan-16": "2001:660:4406:7a0:509:2::17",
-      "kavlan-18": "2001:660:4406:8a0:509:2::17",
-      "kavlan-2": "2001:660:4406:581:9:2::17",
-      "kavlan-20": "2001:660:4406:3a0:509:2::17",
-      "kavlan-21": "2001:660:4406:6a0:509:2::17",
-      "kavlan-3": "2001:660:4406:582:9:2::17",
-      "kavlan-4": "2001:660:4406:590:9:2::17",
-      "kavlan-5": "2001:660:4406:591:9:2::17",
-      "kavlan-6": "2001:660:4406:592:9:2::17",
-      "kavlan-7": "2001:660:4406:593:9:2::17",
-      "kavlan-8": "2001:660:4406:594:9:2::17",
-      "kavlan-9": "2001:660:4406:595:9:2::17"
+      "kavlan-1": "2001:660:4406:580:9:2:0:17",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:17",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:17",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:17",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:17",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:17",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:17",
+      "kavlan-2": "2001:660:4406:581:9:2:0:17",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:17",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:17",
+      "kavlan-3": "2001:660:4406:582:9:2:0:17",
+      "kavlan-4": "2001:660:4406:590:9:2:0:17",
+      "kavlan-5": "2001:660:4406:591:9:2:0:17",
+      "kavlan-6": "2001:660:4406:592:9:2:0:17",
+      "kavlan-7": "2001:660:4406:593:9:2:0:17",
+      "kavlan-8": "2001:660:4406:594:9:2:0:17",
+      "kavlan-9": "2001:660:4406:595:9:2:0:17"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::17",
-      "kavlan-11": "2001:660:4406:1a0:509:3::17",
-      "kavlan-12": "2001:660:4406:2a0:509:3::17",
-      "kavlan-13": "2001:660:4406:4a0:509:3::17",
-      "kavlan-14": "2001:660:4406:5a0:509:3::17",
-      "kavlan-16": "2001:660:4406:7a0:509:3::17",
-      "kavlan-18": "2001:660:4406:8a0:509:3::17",
-      "kavlan-2": "2001:660:4406:581:9:3::17",
-      "kavlan-20": "2001:660:4406:3a0:509:3::17",
-      "kavlan-21": "2001:660:4406:6a0:509:3::17",
-      "kavlan-3": "2001:660:4406:582:9:3::17",
-      "kavlan-4": "2001:660:4406:590:9:3::17",
-      "kavlan-5": "2001:660:4406:591:9:3::17",
-      "kavlan-6": "2001:660:4406:592:9:3::17",
-      "kavlan-7": "2001:660:4406:593:9:3::17",
-      "kavlan-8": "2001:660:4406:594:9:3::17",
-      "kavlan-9": "2001:660:4406:595:9:3::17"
+      "kavlan-1": "2001:660:4406:580:9:3:0:17",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:17",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:17",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:17",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:17",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:17",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:17",
+      "kavlan-2": "2001:660:4406:581:9:3:0:17",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:17",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:17",
+      "kavlan-3": "2001:660:4406:582:9:3:0:17",
+      "kavlan-4": "2001:660:4406:590:9:3:0:17",
+      "kavlan-5": "2001:660:4406:591:9:3:0:17",
+      "kavlan-6": "2001:660:4406:592:9:3:0:17",
+      "kavlan-7": "2001:660:4406:593:9:3:0:17",
+      "kavlan-8": "2001:660:4406:594:9:3:0:17",
+      "kavlan-9": "2001:660:4406:595:9:3:0:17"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::17",
-      "kavlan-11": "2001:660:4406:1a0:509:4::17",
-      "kavlan-12": "2001:660:4406:2a0:509:4::17",
-      "kavlan-13": "2001:660:4406:4a0:509:4::17",
-      "kavlan-14": "2001:660:4406:5a0:509:4::17",
-      "kavlan-16": "2001:660:4406:7a0:509:4::17",
-      "kavlan-18": "2001:660:4406:8a0:509:4::17",
-      "kavlan-2": "2001:660:4406:581:9:4::17",
-      "kavlan-20": "2001:660:4406:3a0:509:4::17",
-      "kavlan-21": "2001:660:4406:6a0:509:4::17",
-      "kavlan-3": "2001:660:4406:582:9:4::17",
-      "kavlan-4": "2001:660:4406:590:9:4::17",
-      "kavlan-5": "2001:660:4406:591:9:4::17",
-      "kavlan-6": "2001:660:4406:592:9:4::17",
-      "kavlan-7": "2001:660:4406:593:9:4::17",
-      "kavlan-8": "2001:660:4406:594:9:4::17",
-      "kavlan-9": "2001:660:4406:595:9:4::17"
+      "kavlan-1": "2001:660:4406:580:9:4:0:17",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:17",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:17",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:17",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:17",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:17",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:17",
+      "kavlan-2": "2001:660:4406:581:9:4:0:17",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:17",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:17",
+      "kavlan-3": "2001:660:4406:582:9:4:0:17",
+      "kavlan-4": "2001:660:4406:590:9:4:0:17",
+      "kavlan-5": "2001:660:4406:591:9:4:0:17",
+      "kavlan-6": "2001:660:4406:592:9:4:0:17",
+      "kavlan-7": "2001:660:4406:593:9:4:0:17",
+      "kavlan-8": "2001:660:4406:594:9:4:0:17",
+      "kavlan-9": "2001:660:4406:595:9:4:0:17"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.23",
-      "ip6": "2001:660:4406:500:9:0::17",
+      "ip6": "2001:660:4406:500:9::17",
       "kavlan": true,
       "mac": "24:6e:96:02:a1:38",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.123",
-      "ip6": "2001:660:4406:500:9:1::17",
+      "ip6": "2001:660:4406:500:9:1:0:17",
       "kavlan": true,
       "mac": "24:6e:96:02:a1:3a",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.223",
-      "ip6": "2001:660:4406:500:9:2::17",
+      "ip6": "2001:660:4406:500:9:2:0:17",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:a0",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.123",
-      "ip6": "2001:660:4406:500:9:3::17",
+      "ip6": "2001:660:4406:500:9:3:0:17",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:a2",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.223",
-      "ip6": "2001:660:4406:500:9:4::17",
+      "ip6": "2001:660:4406:500:9:4:0:17",
       "kavlan": true,
       "mac": "24:6e:96:02:a1:3c",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-24.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-24.json
index 7fe762c2539a1794ad333031063a654e30115c10..2d9cfdbdebc9a12de30c7602963b3c3ac9dded43 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-24.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-24.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::18",
-      "kavlan-11": "2001:660:4406:1a0:509:0::18",
-      "kavlan-12": "2001:660:4406:2a0:509:0::18",
-      "kavlan-13": "2001:660:4406:4a0:509:0::18",
-      "kavlan-14": "2001:660:4406:5a0:509:0::18",
-      "kavlan-16": "2001:660:4406:7a0:509:0::18",
-      "kavlan-18": "2001:660:4406:8a0:509:0::18",
-      "kavlan-2": "2001:660:4406:581:9:0::18",
-      "kavlan-20": "2001:660:4406:3a0:509:0::18",
-      "kavlan-21": "2001:660:4406:6a0:509:0::18",
-      "kavlan-3": "2001:660:4406:582:9:0::18",
-      "kavlan-4": "2001:660:4406:590:9:0::18",
-      "kavlan-5": "2001:660:4406:591:9:0::18",
-      "kavlan-6": "2001:660:4406:592:9:0::18",
-      "kavlan-7": "2001:660:4406:593:9:0::18",
-      "kavlan-8": "2001:660:4406:594:9:0::18",
-      "kavlan-9": "2001:660:4406:595:9:0::18"
+      "kavlan-1": "2001:660:4406:580:9::18",
+      "kavlan-11": "2001:660:4406:1a0:509::18",
+      "kavlan-12": "2001:660:4406:2a0:509::18",
+      "kavlan-13": "2001:660:4406:4a0:509::18",
+      "kavlan-14": "2001:660:4406:5a0:509::18",
+      "kavlan-16": "2001:660:4406:7a0:509::18",
+      "kavlan-18": "2001:660:4406:8a0:509::18",
+      "kavlan-2": "2001:660:4406:581:9::18",
+      "kavlan-20": "2001:660:4406:3a0:509::18",
+      "kavlan-21": "2001:660:4406:6a0:509::18",
+      "kavlan-3": "2001:660:4406:582:9::18",
+      "kavlan-4": "2001:660:4406:590:9::18",
+      "kavlan-5": "2001:660:4406:591:9::18",
+      "kavlan-6": "2001:660:4406:592:9::18",
+      "kavlan-7": "2001:660:4406:593:9::18",
+      "kavlan-8": "2001:660:4406:594:9::18",
+      "kavlan-9": "2001:660:4406:595:9::18"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::18",
-      "kavlan-11": "2001:660:4406:1a0:509:1::18",
-      "kavlan-12": "2001:660:4406:2a0:509:1::18",
-      "kavlan-13": "2001:660:4406:4a0:509:1::18",
-      "kavlan-14": "2001:660:4406:5a0:509:1::18",
-      "kavlan-16": "2001:660:4406:7a0:509:1::18",
-      "kavlan-18": "2001:660:4406:8a0:509:1::18",
-      "kavlan-2": "2001:660:4406:581:9:1::18",
-      "kavlan-20": "2001:660:4406:3a0:509:1::18",
-      "kavlan-21": "2001:660:4406:6a0:509:1::18",
-      "kavlan-3": "2001:660:4406:582:9:1::18",
-      "kavlan-4": "2001:660:4406:590:9:1::18",
-      "kavlan-5": "2001:660:4406:591:9:1::18",
-      "kavlan-6": "2001:660:4406:592:9:1::18",
-      "kavlan-7": "2001:660:4406:593:9:1::18",
-      "kavlan-8": "2001:660:4406:594:9:1::18",
-      "kavlan-9": "2001:660:4406:595:9:1::18"
+      "kavlan-1": "2001:660:4406:580:9:1:0:18",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:18",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:18",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:18",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:18",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:18",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:18",
+      "kavlan-2": "2001:660:4406:581:9:1:0:18",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:18",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:18",
+      "kavlan-3": "2001:660:4406:582:9:1:0:18",
+      "kavlan-4": "2001:660:4406:590:9:1:0:18",
+      "kavlan-5": "2001:660:4406:591:9:1:0:18",
+      "kavlan-6": "2001:660:4406:592:9:1:0:18",
+      "kavlan-7": "2001:660:4406:593:9:1:0:18",
+      "kavlan-8": "2001:660:4406:594:9:1:0:18",
+      "kavlan-9": "2001:660:4406:595:9:1:0:18"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::18",
-      "kavlan-11": "2001:660:4406:1a0:509:2::18",
-      "kavlan-12": "2001:660:4406:2a0:509:2::18",
-      "kavlan-13": "2001:660:4406:4a0:509:2::18",
-      "kavlan-14": "2001:660:4406:5a0:509:2::18",
-      "kavlan-16": "2001:660:4406:7a0:509:2::18",
-      "kavlan-18": "2001:660:4406:8a0:509:2::18",
-      "kavlan-2": "2001:660:4406:581:9:2::18",
-      "kavlan-20": "2001:660:4406:3a0:509:2::18",
-      "kavlan-21": "2001:660:4406:6a0:509:2::18",
-      "kavlan-3": "2001:660:4406:582:9:2::18",
-      "kavlan-4": "2001:660:4406:590:9:2::18",
-      "kavlan-5": "2001:660:4406:591:9:2::18",
-      "kavlan-6": "2001:660:4406:592:9:2::18",
-      "kavlan-7": "2001:660:4406:593:9:2::18",
-      "kavlan-8": "2001:660:4406:594:9:2::18",
-      "kavlan-9": "2001:660:4406:595:9:2::18"
+      "kavlan-1": "2001:660:4406:580:9:2:0:18",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:18",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:18",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:18",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:18",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:18",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:18",
+      "kavlan-2": "2001:660:4406:581:9:2:0:18",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:18",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:18",
+      "kavlan-3": "2001:660:4406:582:9:2:0:18",
+      "kavlan-4": "2001:660:4406:590:9:2:0:18",
+      "kavlan-5": "2001:660:4406:591:9:2:0:18",
+      "kavlan-6": "2001:660:4406:592:9:2:0:18",
+      "kavlan-7": "2001:660:4406:593:9:2:0:18",
+      "kavlan-8": "2001:660:4406:594:9:2:0:18",
+      "kavlan-9": "2001:660:4406:595:9:2:0:18"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::18",
-      "kavlan-11": "2001:660:4406:1a0:509:3::18",
-      "kavlan-12": "2001:660:4406:2a0:509:3::18",
-      "kavlan-13": "2001:660:4406:4a0:509:3::18",
-      "kavlan-14": "2001:660:4406:5a0:509:3::18",
-      "kavlan-16": "2001:660:4406:7a0:509:3::18",
-      "kavlan-18": "2001:660:4406:8a0:509:3::18",
-      "kavlan-2": "2001:660:4406:581:9:3::18",
-      "kavlan-20": "2001:660:4406:3a0:509:3::18",
-      "kavlan-21": "2001:660:4406:6a0:509:3::18",
-      "kavlan-3": "2001:660:4406:582:9:3::18",
-      "kavlan-4": "2001:660:4406:590:9:3::18",
-      "kavlan-5": "2001:660:4406:591:9:3::18",
-      "kavlan-6": "2001:660:4406:592:9:3::18",
-      "kavlan-7": "2001:660:4406:593:9:3::18",
-      "kavlan-8": "2001:660:4406:594:9:3::18",
-      "kavlan-9": "2001:660:4406:595:9:3::18"
+      "kavlan-1": "2001:660:4406:580:9:3:0:18",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:18",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:18",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:18",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:18",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:18",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:18",
+      "kavlan-2": "2001:660:4406:581:9:3:0:18",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:18",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:18",
+      "kavlan-3": "2001:660:4406:582:9:3:0:18",
+      "kavlan-4": "2001:660:4406:590:9:3:0:18",
+      "kavlan-5": "2001:660:4406:591:9:3:0:18",
+      "kavlan-6": "2001:660:4406:592:9:3:0:18",
+      "kavlan-7": "2001:660:4406:593:9:3:0:18",
+      "kavlan-8": "2001:660:4406:594:9:3:0:18",
+      "kavlan-9": "2001:660:4406:595:9:3:0:18"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::18",
-      "kavlan-11": "2001:660:4406:1a0:509:4::18",
-      "kavlan-12": "2001:660:4406:2a0:509:4::18",
-      "kavlan-13": "2001:660:4406:4a0:509:4::18",
-      "kavlan-14": "2001:660:4406:5a0:509:4::18",
-      "kavlan-16": "2001:660:4406:7a0:509:4::18",
-      "kavlan-18": "2001:660:4406:8a0:509:4::18",
-      "kavlan-2": "2001:660:4406:581:9:4::18",
-      "kavlan-20": "2001:660:4406:3a0:509:4::18",
-      "kavlan-21": "2001:660:4406:6a0:509:4::18",
-      "kavlan-3": "2001:660:4406:582:9:4::18",
-      "kavlan-4": "2001:660:4406:590:9:4::18",
-      "kavlan-5": "2001:660:4406:591:9:4::18",
-      "kavlan-6": "2001:660:4406:592:9:4::18",
-      "kavlan-7": "2001:660:4406:593:9:4::18",
-      "kavlan-8": "2001:660:4406:594:9:4::18",
-      "kavlan-9": "2001:660:4406:595:9:4::18"
+      "kavlan-1": "2001:660:4406:580:9:4:0:18",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:18",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:18",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:18",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:18",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:18",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:18",
+      "kavlan-2": "2001:660:4406:581:9:4:0:18",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:18",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:18",
+      "kavlan-3": "2001:660:4406:582:9:4:0:18",
+      "kavlan-4": "2001:660:4406:590:9:4:0:18",
+      "kavlan-5": "2001:660:4406:591:9:4:0:18",
+      "kavlan-6": "2001:660:4406:592:9:4:0:18",
+      "kavlan-7": "2001:660:4406:593:9:4:0:18",
+      "kavlan-8": "2001:660:4406:594:9:4:0:18",
+      "kavlan-9": "2001:660:4406:595:9:4:0:18"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.24",
-      "ip6": "2001:660:4406:500:9:0::18",
+      "ip6": "2001:660:4406:500:9::18",
       "kavlan": true,
       "mac": "24:6e:96:02:a9:80",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.124",
-      "ip6": "2001:660:4406:500:9:1::18",
+      "ip6": "2001:660:4406:500:9:1:0:18",
       "kavlan": true,
       "mac": "24:6e:96:02:a9:82",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.224",
-      "ip6": "2001:660:4406:500:9:2::18",
+      "ip6": "2001:660:4406:500:9:2:0:18",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:38",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.124",
-      "ip6": "2001:660:4406:500:9:3::18",
+      "ip6": "2001:660:4406:500:9:3:0:18",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:3a",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.224",
-      "ip6": "2001:660:4406:500:9:4::18",
+      "ip6": "2001:660:4406:500:9:4:0:18",
       "kavlan": true,
       "mac": "24:6e:96:02:a9:84",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-25.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-25.json
index 6b1150bc239e48d9619396ddd83e2d9e5eac1078..47ec13160de75ac0001519ad112a53b44a94647e 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-25.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-25.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::19",
-      "kavlan-11": "2001:660:4406:1a0:509:0::19",
-      "kavlan-12": "2001:660:4406:2a0:509:0::19",
-      "kavlan-13": "2001:660:4406:4a0:509:0::19",
-      "kavlan-14": "2001:660:4406:5a0:509:0::19",
-      "kavlan-16": "2001:660:4406:7a0:509:0::19",
-      "kavlan-18": "2001:660:4406:8a0:509:0::19",
-      "kavlan-2": "2001:660:4406:581:9:0::19",
-      "kavlan-20": "2001:660:4406:3a0:509:0::19",
-      "kavlan-21": "2001:660:4406:6a0:509:0::19",
-      "kavlan-3": "2001:660:4406:582:9:0::19",
-      "kavlan-4": "2001:660:4406:590:9:0::19",
-      "kavlan-5": "2001:660:4406:591:9:0::19",
-      "kavlan-6": "2001:660:4406:592:9:0::19",
-      "kavlan-7": "2001:660:4406:593:9:0::19",
-      "kavlan-8": "2001:660:4406:594:9:0::19",
-      "kavlan-9": "2001:660:4406:595:9:0::19"
+      "kavlan-1": "2001:660:4406:580:9::19",
+      "kavlan-11": "2001:660:4406:1a0:509::19",
+      "kavlan-12": "2001:660:4406:2a0:509::19",
+      "kavlan-13": "2001:660:4406:4a0:509::19",
+      "kavlan-14": "2001:660:4406:5a0:509::19",
+      "kavlan-16": "2001:660:4406:7a0:509::19",
+      "kavlan-18": "2001:660:4406:8a0:509::19",
+      "kavlan-2": "2001:660:4406:581:9::19",
+      "kavlan-20": "2001:660:4406:3a0:509::19",
+      "kavlan-21": "2001:660:4406:6a0:509::19",
+      "kavlan-3": "2001:660:4406:582:9::19",
+      "kavlan-4": "2001:660:4406:590:9::19",
+      "kavlan-5": "2001:660:4406:591:9::19",
+      "kavlan-6": "2001:660:4406:592:9::19",
+      "kavlan-7": "2001:660:4406:593:9::19",
+      "kavlan-8": "2001:660:4406:594:9::19",
+      "kavlan-9": "2001:660:4406:595:9::19"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::19",
-      "kavlan-11": "2001:660:4406:1a0:509:1::19",
-      "kavlan-12": "2001:660:4406:2a0:509:1::19",
-      "kavlan-13": "2001:660:4406:4a0:509:1::19",
-      "kavlan-14": "2001:660:4406:5a0:509:1::19",
-      "kavlan-16": "2001:660:4406:7a0:509:1::19",
-      "kavlan-18": "2001:660:4406:8a0:509:1::19",
-      "kavlan-2": "2001:660:4406:581:9:1::19",
-      "kavlan-20": "2001:660:4406:3a0:509:1::19",
-      "kavlan-21": "2001:660:4406:6a0:509:1::19",
-      "kavlan-3": "2001:660:4406:582:9:1::19",
-      "kavlan-4": "2001:660:4406:590:9:1::19",
-      "kavlan-5": "2001:660:4406:591:9:1::19",
-      "kavlan-6": "2001:660:4406:592:9:1::19",
-      "kavlan-7": "2001:660:4406:593:9:1::19",
-      "kavlan-8": "2001:660:4406:594:9:1::19",
-      "kavlan-9": "2001:660:4406:595:9:1::19"
+      "kavlan-1": "2001:660:4406:580:9:1:0:19",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:19",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:19",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:19",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:19",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:19",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:19",
+      "kavlan-2": "2001:660:4406:581:9:1:0:19",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:19",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:19",
+      "kavlan-3": "2001:660:4406:582:9:1:0:19",
+      "kavlan-4": "2001:660:4406:590:9:1:0:19",
+      "kavlan-5": "2001:660:4406:591:9:1:0:19",
+      "kavlan-6": "2001:660:4406:592:9:1:0:19",
+      "kavlan-7": "2001:660:4406:593:9:1:0:19",
+      "kavlan-8": "2001:660:4406:594:9:1:0:19",
+      "kavlan-9": "2001:660:4406:595:9:1:0:19"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::19",
-      "kavlan-11": "2001:660:4406:1a0:509:2::19",
-      "kavlan-12": "2001:660:4406:2a0:509:2::19",
-      "kavlan-13": "2001:660:4406:4a0:509:2::19",
-      "kavlan-14": "2001:660:4406:5a0:509:2::19",
-      "kavlan-16": "2001:660:4406:7a0:509:2::19",
-      "kavlan-18": "2001:660:4406:8a0:509:2::19",
-      "kavlan-2": "2001:660:4406:581:9:2::19",
-      "kavlan-20": "2001:660:4406:3a0:509:2::19",
-      "kavlan-21": "2001:660:4406:6a0:509:2::19",
-      "kavlan-3": "2001:660:4406:582:9:2::19",
-      "kavlan-4": "2001:660:4406:590:9:2::19",
-      "kavlan-5": "2001:660:4406:591:9:2::19",
-      "kavlan-6": "2001:660:4406:592:9:2::19",
-      "kavlan-7": "2001:660:4406:593:9:2::19",
-      "kavlan-8": "2001:660:4406:594:9:2::19",
-      "kavlan-9": "2001:660:4406:595:9:2::19"
+      "kavlan-1": "2001:660:4406:580:9:2:0:19",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:19",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:19",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:19",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:19",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:19",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:19",
+      "kavlan-2": "2001:660:4406:581:9:2:0:19",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:19",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:19",
+      "kavlan-3": "2001:660:4406:582:9:2:0:19",
+      "kavlan-4": "2001:660:4406:590:9:2:0:19",
+      "kavlan-5": "2001:660:4406:591:9:2:0:19",
+      "kavlan-6": "2001:660:4406:592:9:2:0:19",
+      "kavlan-7": "2001:660:4406:593:9:2:0:19",
+      "kavlan-8": "2001:660:4406:594:9:2:0:19",
+      "kavlan-9": "2001:660:4406:595:9:2:0:19"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::19",
-      "kavlan-11": "2001:660:4406:1a0:509:3::19",
-      "kavlan-12": "2001:660:4406:2a0:509:3::19",
-      "kavlan-13": "2001:660:4406:4a0:509:3::19",
-      "kavlan-14": "2001:660:4406:5a0:509:3::19",
-      "kavlan-16": "2001:660:4406:7a0:509:3::19",
-      "kavlan-18": "2001:660:4406:8a0:509:3::19",
-      "kavlan-2": "2001:660:4406:581:9:3::19",
-      "kavlan-20": "2001:660:4406:3a0:509:3::19",
-      "kavlan-21": "2001:660:4406:6a0:509:3::19",
-      "kavlan-3": "2001:660:4406:582:9:3::19",
-      "kavlan-4": "2001:660:4406:590:9:3::19",
-      "kavlan-5": "2001:660:4406:591:9:3::19",
-      "kavlan-6": "2001:660:4406:592:9:3::19",
-      "kavlan-7": "2001:660:4406:593:9:3::19",
-      "kavlan-8": "2001:660:4406:594:9:3::19",
-      "kavlan-9": "2001:660:4406:595:9:3::19"
+      "kavlan-1": "2001:660:4406:580:9:3:0:19",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:19",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:19",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:19",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:19",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:19",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:19",
+      "kavlan-2": "2001:660:4406:581:9:3:0:19",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:19",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:19",
+      "kavlan-3": "2001:660:4406:582:9:3:0:19",
+      "kavlan-4": "2001:660:4406:590:9:3:0:19",
+      "kavlan-5": "2001:660:4406:591:9:3:0:19",
+      "kavlan-6": "2001:660:4406:592:9:3:0:19",
+      "kavlan-7": "2001:660:4406:593:9:3:0:19",
+      "kavlan-8": "2001:660:4406:594:9:3:0:19",
+      "kavlan-9": "2001:660:4406:595:9:3:0:19"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::19",
-      "kavlan-11": "2001:660:4406:1a0:509:4::19",
-      "kavlan-12": "2001:660:4406:2a0:509:4::19",
-      "kavlan-13": "2001:660:4406:4a0:509:4::19",
-      "kavlan-14": "2001:660:4406:5a0:509:4::19",
-      "kavlan-16": "2001:660:4406:7a0:509:4::19",
-      "kavlan-18": "2001:660:4406:8a0:509:4::19",
-      "kavlan-2": "2001:660:4406:581:9:4::19",
-      "kavlan-20": "2001:660:4406:3a0:509:4::19",
-      "kavlan-21": "2001:660:4406:6a0:509:4::19",
-      "kavlan-3": "2001:660:4406:582:9:4::19",
-      "kavlan-4": "2001:660:4406:590:9:4::19",
-      "kavlan-5": "2001:660:4406:591:9:4::19",
-      "kavlan-6": "2001:660:4406:592:9:4::19",
-      "kavlan-7": "2001:660:4406:593:9:4::19",
-      "kavlan-8": "2001:660:4406:594:9:4::19",
-      "kavlan-9": "2001:660:4406:595:9:4::19"
+      "kavlan-1": "2001:660:4406:580:9:4:0:19",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:19",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:19",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:19",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:19",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:19",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:19",
+      "kavlan-2": "2001:660:4406:581:9:4:0:19",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:19",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:19",
+      "kavlan-3": "2001:660:4406:582:9:4:0:19",
+      "kavlan-4": "2001:660:4406:590:9:4:0:19",
+      "kavlan-5": "2001:660:4406:591:9:4:0:19",
+      "kavlan-6": "2001:660:4406:592:9:4:0:19",
+      "kavlan-7": "2001:660:4406:593:9:4:0:19",
+      "kavlan-8": "2001:660:4406:594:9:4:0:19",
+      "kavlan-9": "2001:660:4406:595:9:4:0:19"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.25",
-      "ip6": "2001:660:4406:500:9:0::19",
+      "ip6": "2001:660:4406:500:9::19",
       "kavlan": true,
       "mac": "24:6e:96:02:a7:d0",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.125",
-      "ip6": "2001:660:4406:500:9:1::19",
+      "ip6": "2001:660:4406:500:9:1:0:19",
       "kavlan": true,
       "mac": "24:6e:96:02:a7:d2",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.225",
-      "ip6": "2001:660:4406:500:9:2::19",
+      "ip6": "2001:660:4406:500:9:2:0:19",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4d:f4",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.125",
-      "ip6": "2001:660:4406:500:9:3::19",
+      "ip6": "2001:660:4406:500:9:3:0:19",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4d:f6",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.225",
-      "ip6": "2001:660:4406:500:9:4::19",
+      "ip6": "2001:660:4406:500:9:4:0:19",
       "kavlan": true,
       "mac": "24:6e:96:02:a7:d4",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-26.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-26.json
index cdd88d71314f6f509593e4d8887c074a51f08cff..8c19fe6c4ddb0ed463aa431860b1312fa25f3041 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-26.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-26.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::1a",
-      "kavlan-11": "2001:660:4406:1a0:509:0::1a",
-      "kavlan-12": "2001:660:4406:2a0:509:0::1a",
-      "kavlan-13": "2001:660:4406:4a0:509:0::1a",
-      "kavlan-14": "2001:660:4406:5a0:509:0::1a",
-      "kavlan-16": "2001:660:4406:7a0:509:0::1a",
-      "kavlan-18": "2001:660:4406:8a0:509:0::1a",
-      "kavlan-2": "2001:660:4406:581:9:0::1a",
-      "kavlan-20": "2001:660:4406:3a0:509:0::1a",
-      "kavlan-21": "2001:660:4406:6a0:509:0::1a",
-      "kavlan-3": "2001:660:4406:582:9:0::1a",
-      "kavlan-4": "2001:660:4406:590:9:0::1a",
-      "kavlan-5": "2001:660:4406:591:9:0::1a",
-      "kavlan-6": "2001:660:4406:592:9:0::1a",
-      "kavlan-7": "2001:660:4406:593:9:0::1a",
-      "kavlan-8": "2001:660:4406:594:9:0::1a",
-      "kavlan-9": "2001:660:4406:595:9:0::1a"
+      "kavlan-1": "2001:660:4406:580:9::1a",
+      "kavlan-11": "2001:660:4406:1a0:509::1a",
+      "kavlan-12": "2001:660:4406:2a0:509::1a",
+      "kavlan-13": "2001:660:4406:4a0:509::1a",
+      "kavlan-14": "2001:660:4406:5a0:509::1a",
+      "kavlan-16": "2001:660:4406:7a0:509::1a",
+      "kavlan-18": "2001:660:4406:8a0:509::1a",
+      "kavlan-2": "2001:660:4406:581:9::1a",
+      "kavlan-20": "2001:660:4406:3a0:509::1a",
+      "kavlan-21": "2001:660:4406:6a0:509::1a",
+      "kavlan-3": "2001:660:4406:582:9::1a",
+      "kavlan-4": "2001:660:4406:590:9::1a",
+      "kavlan-5": "2001:660:4406:591:9::1a",
+      "kavlan-6": "2001:660:4406:592:9::1a",
+      "kavlan-7": "2001:660:4406:593:9::1a",
+      "kavlan-8": "2001:660:4406:594:9::1a",
+      "kavlan-9": "2001:660:4406:595:9::1a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::1a",
-      "kavlan-11": "2001:660:4406:1a0:509:1::1a",
-      "kavlan-12": "2001:660:4406:2a0:509:1::1a",
-      "kavlan-13": "2001:660:4406:4a0:509:1::1a",
-      "kavlan-14": "2001:660:4406:5a0:509:1::1a",
-      "kavlan-16": "2001:660:4406:7a0:509:1::1a",
-      "kavlan-18": "2001:660:4406:8a0:509:1::1a",
-      "kavlan-2": "2001:660:4406:581:9:1::1a",
-      "kavlan-20": "2001:660:4406:3a0:509:1::1a",
-      "kavlan-21": "2001:660:4406:6a0:509:1::1a",
-      "kavlan-3": "2001:660:4406:582:9:1::1a",
-      "kavlan-4": "2001:660:4406:590:9:1::1a",
-      "kavlan-5": "2001:660:4406:591:9:1::1a",
-      "kavlan-6": "2001:660:4406:592:9:1::1a",
-      "kavlan-7": "2001:660:4406:593:9:1::1a",
-      "kavlan-8": "2001:660:4406:594:9:1::1a",
-      "kavlan-9": "2001:660:4406:595:9:1::1a"
+      "kavlan-1": "2001:660:4406:580:9:1:0:1a",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:1a",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:1a",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:1a",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:1a",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:1a",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:1a",
+      "kavlan-2": "2001:660:4406:581:9:1:0:1a",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:1a",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:1a",
+      "kavlan-3": "2001:660:4406:582:9:1:0:1a",
+      "kavlan-4": "2001:660:4406:590:9:1:0:1a",
+      "kavlan-5": "2001:660:4406:591:9:1:0:1a",
+      "kavlan-6": "2001:660:4406:592:9:1:0:1a",
+      "kavlan-7": "2001:660:4406:593:9:1:0:1a",
+      "kavlan-8": "2001:660:4406:594:9:1:0:1a",
+      "kavlan-9": "2001:660:4406:595:9:1:0:1a"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::1a",
-      "kavlan-11": "2001:660:4406:1a0:509:2::1a",
-      "kavlan-12": "2001:660:4406:2a0:509:2::1a",
-      "kavlan-13": "2001:660:4406:4a0:509:2::1a",
-      "kavlan-14": "2001:660:4406:5a0:509:2::1a",
-      "kavlan-16": "2001:660:4406:7a0:509:2::1a",
-      "kavlan-18": "2001:660:4406:8a0:509:2::1a",
-      "kavlan-2": "2001:660:4406:581:9:2::1a",
-      "kavlan-20": "2001:660:4406:3a0:509:2::1a",
-      "kavlan-21": "2001:660:4406:6a0:509:2::1a",
-      "kavlan-3": "2001:660:4406:582:9:2::1a",
-      "kavlan-4": "2001:660:4406:590:9:2::1a",
-      "kavlan-5": "2001:660:4406:591:9:2::1a",
-      "kavlan-6": "2001:660:4406:592:9:2::1a",
-      "kavlan-7": "2001:660:4406:593:9:2::1a",
-      "kavlan-8": "2001:660:4406:594:9:2::1a",
-      "kavlan-9": "2001:660:4406:595:9:2::1a"
+      "kavlan-1": "2001:660:4406:580:9:2:0:1a",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:1a",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:1a",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:1a",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:1a",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:1a",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:1a",
+      "kavlan-2": "2001:660:4406:581:9:2:0:1a",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:1a",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:1a",
+      "kavlan-3": "2001:660:4406:582:9:2:0:1a",
+      "kavlan-4": "2001:660:4406:590:9:2:0:1a",
+      "kavlan-5": "2001:660:4406:591:9:2:0:1a",
+      "kavlan-6": "2001:660:4406:592:9:2:0:1a",
+      "kavlan-7": "2001:660:4406:593:9:2:0:1a",
+      "kavlan-8": "2001:660:4406:594:9:2:0:1a",
+      "kavlan-9": "2001:660:4406:595:9:2:0:1a"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::1a",
-      "kavlan-11": "2001:660:4406:1a0:509:3::1a",
-      "kavlan-12": "2001:660:4406:2a0:509:3::1a",
-      "kavlan-13": "2001:660:4406:4a0:509:3::1a",
-      "kavlan-14": "2001:660:4406:5a0:509:3::1a",
-      "kavlan-16": "2001:660:4406:7a0:509:3::1a",
-      "kavlan-18": "2001:660:4406:8a0:509:3::1a",
-      "kavlan-2": "2001:660:4406:581:9:3::1a",
-      "kavlan-20": "2001:660:4406:3a0:509:3::1a",
-      "kavlan-21": "2001:660:4406:6a0:509:3::1a",
-      "kavlan-3": "2001:660:4406:582:9:3::1a",
-      "kavlan-4": "2001:660:4406:590:9:3::1a",
-      "kavlan-5": "2001:660:4406:591:9:3::1a",
-      "kavlan-6": "2001:660:4406:592:9:3::1a",
-      "kavlan-7": "2001:660:4406:593:9:3::1a",
-      "kavlan-8": "2001:660:4406:594:9:3::1a",
-      "kavlan-9": "2001:660:4406:595:9:3::1a"
+      "kavlan-1": "2001:660:4406:580:9:3:0:1a",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:1a",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:1a",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:1a",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:1a",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:1a",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:1a",
+      "kavlan-2": "2001:660:4406:581:9:3:0:1a",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:1a",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:1a",
+      "kavlan-3": "2001:660:4406:582:9:3:0:1a",
+      "kavlan-4": "2001:660:4406:590:9:3:0:1a",
+      "kavlan-5": "2001:660:4406:591:9:3:0:1a",
+      "kavlan-6": "2001:660:4406:592:9:3:0:1a",
+      "kavlan-7": "2001:660:4406:593:9:3:0:1a",
+      "kavlan-8": "2001:660:4406:594:9:3:0:1a",
+      "kavlan-9": "2001:660:4406:595:9:3:0:1a"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::1a",
-      "kavlan-11": "2001:660:4406:1a0:509:4::1a",
-      "kavlan-12": "2001:660:4406:2a0:509:4::1a",
-      "kavlan-13": "2001:660:4406:4a0:509:4::1a",
-      "kavlan-14": "2001:660:4406:5a0:509:4::1a",
-      "kavlan-16": "2001:660:4406:7a0:509:4::1a",
-      "kavlan-18": "2001:660:4406:8a0:509:4::1a",
-      "kavlan-2": "2001:660:4406:581:9:4::1a",
-      "kavlan-20": "2001:660:4406:3a0:509:4::1a",
-      "kavlan-21": "2001:660:4406:6a0:509:4::1a",
-      "kavlan-3": "2001:660:4406:582:9:4::1a",
-      "kavlan-4": "2001:660:4406:590:9:4::1a",
-      "kavlan-5": "2001:660:4406:591:9:4::1a",
-      "kavlan-6": "2001:660:4406:592:9:4::1a",
-      "kavlan-7": "2001:660:4406:593:9:4::1a",
-      "kavlan-8": "2001:660:4406:594:9:4::1a",
-      "kavlan-9": "2001:660:4406:595:9:4::1a"
+      "kavlan-1": "2001:660:4406:580:9:4:0:1a",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:1a",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:1a",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:1a",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:1a",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:1a",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:1a",
+      "kavlan-2": "2001:660:4406:581:9:4:0:1a",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:1a",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:1a",
+      "kavlan-3": "2001:660:4406:582:9:4:0:1a",
+      "kavlan-4": "2001:660:4406:590:9:4:0:1a",
+      "kavlan-5": "2001:660:4406:591:9:4:0:1a",
+      "kavlan-6": "2001:660:4406:592:9:4:0:1a",
+      "kavlan-7": "2001:660:4406:593:9:4:0:1a",
+      "kavlan-8": "2001:660:4406:594:9:4:0:1a",
+      "kavlan-9": "2001:660:4406:595:9:4:0:1a"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.26",
-      "ip6": "2001:660:4406:500:9:0::1a",
+      "ip6": "2001:660:4406:500:9::1a",
       "kavlan": true,
       "mac": "24:6e:96:02:a1:98",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.126",
-      "ip6": "2001:660:4406:500:9:1::1a",
+      "ip6": "2001:660:4406:500:9:1:0:1a",
       "kavlan": true,
       "mac": "24:6e:96:02:a1:9a",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.226",
-      "ip6": "2001:660:4406:500:9:2::1a",
+      "ip6": "2001:660:4406:500:9:2:0:1a",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:34",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.126",
-      "ip6": "2001:660:4406:500:9:3::1a",
+      "ip6": "2001:660:4406:500:9:3:0:1a",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:36",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.226",
-      "ip6": "2001:660:4406:500:9:4::1a",
+      "ip6": "2001:660:4406:500:9:4:0:1a",
       "kavlan": true,
       "mac": "24:6e:96:02:a1:9c",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-27.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-27.json
index 282d67952f2cbe9cf71f0a19f23be4bd1d426011..b62704d414e1a7a0781d92754fa23c5347b45ae9 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-27.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-27.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::1b",
-      "kavlan-11": "2001:660:4406:1a0:509:0::1b",
-      "kavlan-12": "2001:660:4406:2a0:509:0::1b",
-      "kavlan-13": "2001:660:4406:4a0:509:0::1b",
-      "kavlan-14": "2001:660:4406:5a0:509:0::1b",
-      "kavlan-16": "2001:660:4406:7a0:509:0::1b",
-      "kavlan-18": "2001:660:4406:8a0:509:0::1b",
-      "kavlan-2": "2001:660:4406:581:9:0::1b",
-      "kavlan-20": "2001:660:4406:3a0:509:0::1b",
-      "kavlan-21": "2001:660:4406:6a0:509:0::1b",
-      "kavlan-3": "2001:660:4406:582:9:0::1b",
-      "kavlan-4": "2001:660:4406:590:9:0::1b",
-      "kavlan-5": "2001:660:4406:591:9:0::1b",
-      "kavlan-6": "2001:660:4406:592:9:0::1b",
-      "kavlan-7": "2001:660:4406:593:9:0::1b",
-      "kavlan-8": "2001:660:4406:594:9:0::1b",
-      "kavlan-9": "2001:660:4406:595:9:0::1b"
+      "kavlan-1": "2001:660:4406:580:9::1b",
+      "kavlan-11": "2001:660:4406:1a0:509::1b",
+      "kavlan-12": "2001:660:4406:2a0:509::1b",
+      "kavlan-13": "2001:660:4406:4a0:509::1b",
+      "kavlan-14": "2001:660:4406:5a0:509::1b",
+      "kavlan-16": "2001:660:4406:7a0:509::1b",
+      "kavlan-18": "2001:660:4406:8a0:509::1b",
+      "kavlan-2": "2001:660:4406:581:9::1b",
+      "kavlan-20": "2001:660:4406:3a0:509::1b",
+      "kavlan-21": "2001:660:4406:6a0:509::1b",
+      "kavlan-3": "2001:660:4406:582:9::1b",
+      "kavlan-4": "2001:660:4406:590:9::1b",
+      "kavlan-5": "2001:660:4406:591:9::1b",
+      "kavlan-6": "2001:660:4406:592:9::1b",
+      "kavlan-7": "2001:660:4406:593:9::1b",
+      "kavlan-8": "2001:660:4406:594:9::1b",
+      "kavlan-9": "2001:660:4406:595:9::1b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::1b",
-      "kavlan-11": "2001:660:4406:1a0:509:1::1b",
-      "kavlan-12": "2001:660:4406:2a0:509:1::1b",
-      "kavlan-13": "2001:660:4406:4a0:509:1::1b",
-      "kavlan-14": "2001:660:4406:5a0:509:1::1b",
-      "kavlan-16": "2001:660:4406:7a0:509:1::1b",
-      "kavlan-18": "2001:660:4406:8a0:509:1::1b",
-      "kavlan-2": "2001:660:4406:581:9:1::1b",
-      "kavlan-20": "2001:660:4406:3a0:509:1::1b",
-      "kavlan-21": "2001:660:4406:6a0:509:1::1b",
-      "kavlan-3": "2001:660:4406:582:9:1::1b",
-      "kavlan-4": "2001:660:4406:590:9:1::1b",
-      "kavlan-5": "2001:660:4406:591:9:1::1b",
-      "kavlan-6": "2001:660:4406:592:9:1::1b",
-      "kavlan-7": "2001:660:4406:593:9:1::1b",
-      "kavlan-8": "2001:660:4406:594:9:1::1b",
-      "kavlan-9": "2001:660:4406:595:9:1::1b"
+      "kavlan-1": "2001:660:4406:580:9:1:0:1b",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:1b",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:1b",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:1b",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:1b",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:1b",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:1b",
+      "kavlan-2": "2001:660:4406:581:9:1:0:1b",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:1b",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:1b",
+      "kavlan-3": "2001:660:4406:582:9:1:0:1b",
+      "kavlan-4": "2001:660:4406:590:9:1:0:1b",
+      "kavlan-5": "2001:660:4406:591:9:1:0:1b",
+      "kavlan-6": "2001:660:4406:592:9:1:0:1b",
+      "kavlan-7": "2001:660:4406:593:9:1:0:1b",
+      "kavlan-8": "2001:660:4406:594:9:1:0:1b",
+      "kavlan-9": "2001:660:4406:595:9:1:0:1b"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::1b",
-      "kavlan-11": "2001:660:4406:1a0:509:2::1b",
-      "kavlan-12": "2001:660:4406:2a0:509:2::1b",
-      "kavlan-13": "2001:660:4406:4a0:509:2::1b",
-      "kavlan-14": "2001:660:4406:5a0:509:2::1b",
-      "kavlan-16": "2001:660:4406:7a0:509:2::1b",
-      "kavlan-18": "2001:660:4406:8a0:509:2::1b",
-      "kavlan-2": "2001:660:4406:581:9:2::1b",
-      "kavlan-20": "2001:660:4406:3a0:509:2::1b",
-      "kavlan-21": "2001:660:4406:6a0:509:2::1b",
-      "kavlan-3": "2001:660:4406:582:9:2::1b",
-      "kavlan-4": "2001:660:4406:590:9:2::1b",
-      "kavlan-5": "2001:660:4406:591:9:2::1b",
-      "kavlan-6": "2001:660:4406:592:9:2::1b",
-      "kavlan-7": "2001:660:4406:593:9:2::1b",
-      "kavlan-8": "2001:660:4406:594:9:2::1b",
-      "kavlan-9": "2001:660:4406:595:9:2::1b"
+      "kavlan-1": "2001:660:4406:580:9:2:0:1b",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:1b",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:1b",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:1b",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:1b",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:1b",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:1b",
+      "kavlan-2": "2001:660:4406:581:9:2:0:1b",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:1b",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:1b",
+      "kavlan-3": "2001:660:4406:582:9:2:0:1b",
+      "kavlan-4": "2001:660:4406:590:9:2:0:1b",
+      "kavlan-5": "2001:660:4406:591:9:2:0:1b",
+      "kavlan-6": "2001:660:4406:592:9:2:0:1b",
+      "kavlan-7": "2001:660:4406:593:9:2:0:1b",
+      "kavlan-8": "2001:660:4406:594:9:2:0:1b",
+      "kavlan-9": "2001:660:4406:595:9:2:0:1b"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::1b",
-      "kavlan-11": "2001:660:4406:1a0:509:3::1b",
-      "kavlan-12": "2001:660:4406:2a0:509:3::1b",
-      "kavlan-13": "2001:660:4406:4a0:509:3::1b",
-      "kavlan-14": "2001:660:4406:5a0:509:3::1b",
-      "kavlan-16": "2001:660:4406:7a0:509:3::1b",
-      "kavlan-18": "2001:660:4406:8a0:509:3::1b",
-      "kavlan-2": "2001:660:4406:581:9:3::1b",
-      "kavlan-20": "2001:660:4406:3a0:509:3::1b",
-      "kavlan-21": "2001:660:4406:6a0:509:3::1b",
-      "kavlan-3": "2001:660:4406:582:9:3::1b",
-      "kavlan-4": "2001:660:4406:590:9:3::1b",
-      "kavlan-5": "2001:660:4406:591:9:3::1b",
-      "kavlan-6": "2001:660:4406:592:9:3::1b",
-      "kavlan-7": "2001:660:4406:593:9:3::1b",
-      "kavlan-8": "2001:660:4406:594:9:3::1b",
-      "kavlan-9": "2001:660:4406:595:9:3::1b"
+      "kavlan-1": "2001:660:4406:580:9:3:0:1b",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:1b",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:1b",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:1b",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:1b",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:1b",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:1b",
+      "kavlan-2": "2001:660:4406:581:9:3:0:1b",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:1b",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:1b",
+      "kavlan-3": "2001:660:4406:582:9:3:0:1b",
+      "kavlan-4": "2001:660:4406:590:9:3:0:1b",
+      "kavlan-5": "2001:660:4406:591:9:3:0:1b",
+      "kavlan-6": "2001:660:4406:592:9:3:0:1b",
+      "kavlan-7": "2001:660:4406:593:9:3:0:1b",
+      "kavlan-8": "2001:660:4406:594:9:3:0:1b",
+      "kavlan-9": "2001:660:4406:595:9:3:0:1b"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::1b",
-      "kavlan-11": "2001:660:4406:1a0:509:4::1b",
-      "kavlan-12": "2001:660:4406:2a0:509:4::1b",
-      "kavlan-13": "2001:660:4406:4a0:509:4::1b",
-      "kavlan-14": "2001:660:4406:5a0:509:4::1b",
-      "kavlan-16": "2001:660:4406:7a0:509:4::1b",
-      "kavlan-18": "2001:660:4406:8a0:509:4::1b",
-      "kavlan-2": "2001:660:4406:581:9:4::1b",
-      "kavlan-20": "2001:660:4406:3a0:509:4::1b",
-      "kavlan-21": "2001:660:4406:6a0:509:4::1b",
-      "kavlan-3": "2001:660:4406:582:9:4::1b",
-      "kavlan-4": "2001:660:4406:590:9:4::1b",
-      "kavlan-5": "2001:660:4406:591:9:4::1b",
-      "kavlan-6": "2001:660:4406:592:9:4::1b",
-      "kavlan-7": "2001:660:4406:593:9:4::1b",
-      "kavlan-8": "2001:660:4406:594:9:4::1b",
-      "kavlan-9": "2001:660:4406:595:9:4::1b"
+      "kavlan-1": "2001:660:4406:580:9:4:0:1b",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:1b",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:1b",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:1b",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:1b",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:1b",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:1b",
+      "kavlan-2": "2001:660:4406:581:9:4:0:1b",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:1b",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:1b",
+      "kavlan-3": "2001:660:4406:582:9:4:0:1b",
+      "kavlan-4": "2001:660:4406:590:9:4:0:1b",
+      "kavlan-5": "2001:660:4406:591:9:4:0:1b",
+      "kavlan-6": "2001:660:4406:592:9:4:0:1b",
+      "kavlan-7": "2001:660:4406:593:9:4:0:1b",
+      "kavlan-8": "2001:660:4406:594:9:4:0:1b",
+      "kavlan-9": "2001:660:4406:595:9:4:0:1b"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.27",
-      "ip6": "2001:660:4406:500:9:0::1b",
+      "ip6": "2001:660:4406:500:9::1b",
       "kavlan": true,
       "mac": "24:6e:96:02:a4:70",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.127",
-      "ip6": "2001:660:4406:500:9:1::1b",
+      "ip6": "2001:660:4406:500:9:1:0:1b",
       "kavlan": true,
       "mac": "24:6e:96:02:a4:72",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.227",
-      "ip6": "2001:660:4406:500:9:2::1b",
+      "ip6": "2001:660:4406:500:9:2:0:1b",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4a:c8",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.127",
-      "ip6": "2001:660:4406:500:9:3::1b",
+      "ip6": "2001:660:4406:500:9:3:0:1b",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4a:ca",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.227",
-      "ip6": "2001:660:4406:500:9:4::1b",
+      "ip6": "2001:660:4406:500:9:4:0:1b",
       "kavlan": true,
       "mac": "24:6e:96:02:a4:74",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-28.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-28.json
index 3d3a509eaf0cbb5342c230edb8a6958cb1960daf..f4e3dc7c90779a958147c469c19c21e9191a0832 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-28.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-28.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::1c",
-      "kavlan-11": "2001:660:4406:1a0:509:0::1c",
-      "kavlan-12": "2001:660:4406:2a0:509:0::1c",
-      "kavlan-13": "2001:660:4406:4a0:509:0::1c",
-      "kavlan-14": "2001:660:4406:5a0:509:0::1c",
-      "kavlan-16": "2001:660:4406:7a0:509:0::1c",
-      "kavlan-18": "2001:660:4406:8a0:509:0::1c",
-      "kavlan-2": "2001:660:4406:581:9:0::1c",
-      "kavlan-20": "2001:660:4406:3a0:509:0::1c",
-      "kavlan-21": "2001:660:4406:6a0:509:0::1c",
-      "kavlan-3": "2001:660:4406:582:9:0::1c",
-      "kavlan-4": "2001:660:4406:590:9:0::1c",
-      "kavlan-5": "2001:660:4406:591:9:0::1c",
-      "kavlan-6": "2001:660:4406:592:9:0::1c",
-      "kavlan-7": "2001:660:4406:593:9:0::1c",
-      "kavlan-8": "2001:660:4406:594:9:0::1c",
-      "kavlan-9": "2001:660:4406:595:9:0::1c"
+      "kavlan-1": "2001:660:4406:580:9::1c",
+      "kavlan-11": "2001:660:4406:1a0:509::1c",
+      "kavlan-12": "2001:660:4406:2a0:509::1c",
+      "kavlan-13": "2001:660:4406:4a0:509::1c",
+      "kavlan-14": "2001:660:4406:5a0:509::1c",
+      "kavlan-16": "2001:660:4406:7a0:509::1c",
+      "kavlan-18": "2001:660:4406:8a0:509::1c",
+      "kavlan-2": "2001:660:4406:581:9::1c",
+      "kavlan-20": "2001:660:4406:3a0:509::1c",
+      "kavlan-21": "2001:660:4406:6a0:509::1c",
+      "kavlan-3": "2001:660:4406:582:9::1c",
+      "kavlan-4": "2001:660:4406:590:9::1c",
+      "kavlan-5": "2001:660:4406:591:9::1c",
+      "kavlan-6": "2001:660:4406:592:9::1c",
+      "kavlan-7": "2001:660:4406:593:9::1c",
+      "kavlan-8": "2001:660:4406:594:9::1c",
+      "kavlan-9": "2001:660:4406:595:9::1c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::1c",
-      "kavlan-11": "2001:660:4406:1a0:509:1::1c",
-      "kavlan-12": "2001:660:4406:2a0:509:1::1c",
-      "kavlan-13": "2001:660:4406:4a0:509:1::1c",
-      "kavlan-14": "2001:660:4406:5a0:509:1::1c",
-      "kavlan-16": "2001:660:4406:7a0:509:1::1c",
-      "kavlan-18": "2001:660:4406:8a0:509:1::1c",
-      "kavlan-2": "2001:660:4406:581:9:1::1c",
-      "kavlan-20": "2001:660:4406:3a0:509:1::1c",
-      "kavlan-21": "2001:660:4406:6a0:509:1::1c",
-      "kavlan-3": "2001:660:4406:582:9:1::1c",
-      "kavlan-4": "2001:660:4406:590:9:1::1c",
-      "kavlan-5": "2001:660:4406:591:9:1::1c",
-      "kavlan-6": "2001:660:4406:592:9:1::1c",
-      "kavlan-7": "2001:660:4406:593:9:1::1c",
-      "kavlan-8": "2001:660:4406:594:9:1::1c",
-      "kavlan-9": "2001:660:4406:595:9:1::1c"
+      "kavlan-1": "2001:660:4406:580:9:1:0:1c",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:1c",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:1c",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:1c",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:1c",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:1c",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:1c",
+      "kavlan-2": "2001:660:4406:581:9:1:0:1c",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:1c",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:1c",
+      "kavlan-3": "2001:660:4406:582:9:1:0:1c",
+      "kavlan-4": "2001:660:4406:590:9:1:0:1c",
+      "kavlan-5": "2001:660:4406:591:9:1:0:1c",
+      "kavlan-6": "2001:660:4406:592:9:1:0:1c",
+      "kavlan-7": "2001:660:4406:593:9:1:0:1c",
+      "kavlan-8": "2001:660:4406:594:9:1:0:1c",
+      "kavlan-9": "2001:660:4406:595:9:1:0:1c"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::1c",
-      "kavlan-11": "2001:660:4406:1a0:509:2::1c",
-      "kavlan-12": "2001:660:4406:2a0:509:2::1c",
-      "kavlan-13": "2001:660:4406:4a0:509:2::1c",
-      "kavlan-14": "2001:660:4406:5a0:509:2::1c",
-      "kavlan-16": "2001:660:4406:7a0:509:2::1c",
-      "kavlan-18": "2001:660:4406:8a0:509:2::1c",
-      "kavlan-2": "2001:660:4406:581:9:2::1c",
-      "kavlan-20": "2001:660:4406:3a0:509:2::1c",
-      "kavlan-21": "2001:660:4406:6a0:509:2::1c",
-      "kavlan-3": "2001:660:4406:582:9:2::1c",
-      "kavlan-4": "2001:660:4406:590:9:2::1c",
-      "kavlan-5": "2001:660:4406:591:9:2::1c",
-      "kavlan-6": "2001:660:4406:592:9:2::1c",
-      "kavlan-7": "2001:660:4406:593:9:2::1c",
-      "kavlan-8": "2001:660:4406:594:9:2::1c",
-      "kavlan-9": "2001:660:4406:595:9:2::1c"
+      "kavlan-1": "2001:660:4406:580:9:2:0:1c",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:1c",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:1c",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:1c",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:1c",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:1c",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:1c",
+      "kavlan-2": "2001:660:4406:581:9:2:0:1c",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:1c",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:1c",
+      "kavlan-3": "2001:660:4406:582:9:2:0:1c",
+      "kavlan-4": "2001:660:4406:590:9:2:0:1c",
+      "kavlan-5": "2001:660:4406:591:9:2:0:1c",
+      "kavlan-6": "2001:660:4406:592:9:2:0:1c",
+      "kavlan-7": "2001:660:4406:593:9:2:0:1c",
+      "kavlan-8": "2001:660:4406:594:9:2:0:1c",
+      "kavlan-9": "2001:660:4406:595:9:2:0:1c"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::1c",
-      "kavlan-11": "2001:660:4406:1a0:509:3::1c",
-      "kavlan-12": "2001:660:4406:2a0:509:3::1c",
-      "kavlan-13": "2001:660:4406:4a0:509:3::1c",
-      "kavlan-14": "2001:660:4406:5a0:509:3::1c",
-      "kavlan-16": "2001:660:4406:7a0:509:3::1c",
-      "kavlan-18": "2001:660:4406:8a0:509:3::1c",
-      "kavlan-2": "2001:660:4406:581:9:3::1c",
-      "kavlan-20": "2001:660:4406:3a0:509:3::1c",
-      "kavlan-21": "2001:660:4406:6a0:509:3::1c",
-      "kavlan-3": "2001:660:4406:582:9:3::1c",
-      "kavlan-4": "2001:660:4406:590:9:3::1c",
-      "kavlan-5": "2001:660:4406:591:9:3::1c",
-      "kavlan-6": "2001:660:4406:592:9:3::1c",
-      "kavlan-7": "2001:660:4406:593:9:3::1c",
-      "kavlan-8": "2001:660:4406:594:9:3::1c",
-      "kavlan-9": "2001:660:4406:595:9:3::1c"
+      "kavlan-1": "2001:660:4406:580:9:3:0:1c",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:1c",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:1c",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:1c",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:1c",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:1c",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:1c",
+      "kavlan-2": "2001:660:4406:581:9:3:0:1c",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:1c",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:1c",
+      "kavlan-3": "2001:660:4406:582:9:3:0:1c",
+      "kavlan-4": "2001:660:4406:590:9:3:0:1c",
+      "kavlan-5": "2001:660:4406:591:9:3:0:1c",
+      "kavlan-6": "2001:660:4406:592:9:3:0:1c",
+      "kavlan-7": "2001:660:4406:593:9:3:0:1c",
+      "kavlan-8": "2001:660:4406:594:9:3:0:1c",
+      "kavlan-9": "2001:660:4406:595:9:3:0:1c"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::1c",
-      "kavlan-11": "2001:660:4406:1a0:509:4::1c",
-      "kavlan-12": "2001:660:4406:2a0:509:4::1c",
-      "kavlan-13": "2001:660:4406:4a0:509:4::1c",
-      "kavlan-14": "2001:660:4406:5a0:509:4::1c",
-      "kavlan-16": "2001:660:4406:7a0:509:4::1c",
-      "kavlan-18": "2001:660:4406:8a0:509:4::1c",
-      "kavlan-2": "2001:660:4406:581:9:4::1c",
-      "kavlan-20": "2001:660:4406:3a0:509:4::1c",
-      "kavlan-21": "2001:660:4406:6a0:509:4::1c",
-      "kavlan-3": "2001:660:4406:582:9:4::1c",
-      "kavlan-4": "2001:660:4406:590:9:4::1c",
-      "kavlan-5": "2001:660:4406:591:9:4::1c",
-      "kavlan-6": "2001:660:4406:592:9:4::1c",
-      "kavlan-7": "2001:660:4406:593:9:4::1c",
-      "kavlan-8": "2001:660:4406:594:9:4::1c",
-      "kavlan-9": "2001:660:4406:595:9:4::1c"
+      "kavlan-1": "2001:660:4406:580:9:4:0:1c",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:1c",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:1c",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:1c",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:1c",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:1c",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:1c",
+      "kavlan-2": "2001:660:4406:581:9:4:0:1c",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:1c",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:1c",
+      "kavlan-3": "2001:660:4406:582:9:4:0:1c",
+      "kavlan-4": "2001:660:4406:590:9:4:0:1c",
+      "kavlan-5": "2001:660:4406:591:9:4:0:1c",
+      "kavlan-6": "2001:660:4406:592:9:4:0:1c",
+      "kavlan-7": "2001:660:4406:593:9:4:0:1c",
+      "kavlan-8": "2001:660:4406:594:9:4:0:1c",
+      "kavlan-9": "2001:660:4406:595:9:4:0:1c"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.28",
-      "ip6": "2001:660:4406:500:9:0::1c",
+      "ip6": "2001:660:4406:500:9::1c",
       "kavlan": true,
       "mac": "e4:43:4b:21:59:48",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.128",
-      "ip6": "2001:660:4406:500:9:1::1c",
+      "ip6": "2001:660:4406:500:9:1:0:1c",
       "kavlan": true,
       "mac": "e4:43:4b:21:59:4a",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.228",
-      "ip6": "2001:660:4406:500:9:2::1c",
+      "ip6": "2001:660:4406:500:9:2:0:1c",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:c0",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.128",
-      "ip6": "2001:660:4406:500:9:3::1c",
+      "ip6": "2001:660:4406:500:9:3:0:1c",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:c2",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.228",
-      "ip6": "2001:660:4406:500:9:4::1c",
+      "ip6": "2001:660:4406:500:9:4:0:1c",
       "kavlan": true,
       "mac": "e4:43:4b:21:59:4c",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-29.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-29.json
index 069e8a2de2538aeb5548b95cd76d564437119520..cb753796094c3517f0200759e7e3599dd9b0cd12 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-29.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-29.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::1d",
-      "kavlan-11": "2001:660:4406:1a0:509:0::1d",
-      "kavlan-12": "2001:660:4406:2a0:509:0::1d",
-      "kavlan-13": "2001:660:4406:4a0:509:0::1d",
-      "kavlan-14": "2001:660:4406:5a0:509:0::1d",
-      "kavlan-16": "2001:660:4406:7a0:509:0::1d",
-      "kavlan-18": "2001:660:4406:8a0:509:0::1d",
-      "kavlan-2": "2001:660:4406:581:9:0::1d",
-      "kavlan-20": "2001:660:4406:3a0:509:0::1d",
-      "kavlan-21": "2001:660:4406:6a0:509:0::1d",
-      "kavlan-3": "2001:660:4406:582:9:0::1d",
-      "kavlan-4": "2001:660:4406:590:9:0::1d",
-      "kavlan-5": "2001:660:4406:591:9:0::1d",
-      "kavlan-6": "2001:660:4406:592:9:0::1d",
-      "kavlan-7": "2001:660:4406:593:9:0::1d",
-      "kavlan-8": "2001:660:4406:594:9:0::1d",
-      "kavlan-9": "2001:660:4406:595:9:0::1d"
+      "kavlan-1": "2001:660:4406:580:9::1d",
+      "kavlan-11": "2001:660:4406:1a0:509::1d",
+      "kavlan-12": "2001:660:4406:2a0:509::1d",
+      "kavlan-13": "2001:660:4406:4a0:509::1d",
+      "kavlan-14": "2001:660:4406:5a0:509::1d",
+      "kavlan-16": "2001:660:4406:7a0:509::1d",
+      "kavlan-18": "2001:660:4406:8a0:509::1d",
+      "kavlan-2": "2001:660:4406:581:9::1d",
+      "kavlan-20": "2001:660:4406:3a0:509::1d",
+      "kavlan-21": "2001:660:4406:6a0:509::1d",
+      "kavlan-3": "2001:660:4406:582:9::1d",
+      "kavlan-4": "2001:660:4406:590:9::1d",
+      "kavlan-5": "2001:660:4406:591:9::1d",
+      "kavlan-6": "2001:660:4406:592:9::1d",
+      "kavlan-7": "2001:660:4406:593:9::1d",
+      "kavlan-8": "2001:660:4406:594:9::1d",
+      "kavlan-9": "2001:660:4406:595:9::1d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::1d",
-      "kavlan-11": "2001:660:4406:1a0:509:1::1d",
-      "kavlan-12": "2001:660:4406:2a0:509:1::1d",
-      "kavlan-13": "2001:660:4406:4a0:509:1::1d",
-      "kavlan-14": "2001:660:4406:5a0:509:1::1d",
-      "kavlan-16": "2001:660:4406:7a0:509:1::1d",
-      "kavlan-18": "2001:660:4406:8a0:509:1::1d",
-      "kavlan-2": "2001:660:4406:581:9:1::1d",
-      "kavlan-20": "2001:660:4406:3a0:509:1::1d",
-      "kavlan-21": "2001:660:4406:6a0:509:1::1d",
-      "kavlan-3": "2001:660:4406:582:9:1::1d",
-      "kavlan-4": "2001:660:4406:590:9:1::1d",
-      "kavlan-5": "2001:660:4406:591:9:1::1d",
-      "kavlan-6": "2001:660:4406:592:9:1::1d",
-      "kavlan-7": "2001:660:4406:593:9:1::1d",
-      "kavlan-8": "2001:660:4406:594:9:1::1d",
-      "kavlan-9": "2001:660:4406:595:9:1::1d"
+      "kavlan-1": "2001:660:4406:580:9:1:0:1d",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:1d",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:1d",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:1d",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:1d",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:1d",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:1d",
+      "kavlan-2": "2001:660:4406:581:9:1:0:1d",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:1d",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:1d",
+      "kavlan-3": "2001:660:4406:582:9:1:0:1d",
+      "kavlan-4": "2001:660:4406:590:9:1:0:1d",
+      "kavlan-5": "2001:660:4406:591:9:1:0:1d",
+      "kavlan-6": "2001:660:4406:592:9:1:0:1d",
+      "kavlan-7": "2001:660:4406:593:9:1:0:1d",
+      "kavlan-8": "2001:660:4406:594:9:1:0:1d",
+      "kavlan-9": "2001:660:4406:595:9:1:0:1d"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::1d",
-      "kavlan-11": "2001:660:4406:1a0:509:2::1d",
-      "kavlan-12": "2001:660:4406:2a0:509:2::1d",
-      "kavlan-13": "2001:660:4406:4a0:509:2::1d",
-      "kavlan-14": "2001:660:4406:5a0:509:2::1d",
-      "kavlan-16": "2001:660:4406:7a0:509:2::1d",
-      "kavlan-18": "2001:660:4406:8a0:509:2::1d",
-      "kavlan-2": "2001:660:4406:581:9:2::1d",
-      "kavlan-20": "2001:660:4406:3a0:509:2::1d",
-      "kavlan-21": "2001:660:4406:6a0:509:2::1d",
-      "kavlan-3": "2001:660:4406:582:9:2::1d",
-      "kavlan-4": "2001:660:4406:590:9:2::1d",
-      "kavlan-5": "2001:660:4406:591:9:2::1d",
-      "kavlan-6": "2001:660:4406:592:9:2::1d",
-      "kavlan-7": "2001:660:4406:593:9:2::1d",
-      "kavlan-8": "2001:660:4406:594:9:2::1d",
-      "kavlan-9": "2001:660:4406:595:9:2::1d"
+      "kavlan-1": "2001:660:4406:580:9:2:0:1d",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:1d",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:1d",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:1d",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:1d",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:1d",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:1d",
+      "kavlan-2": "2001:660:4406:581:9:2:0:1d",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:1d",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:1d",
+      "kavlan-3": "2001:660:4406:582:9:2:0:1d",
+      "kavlan-4": "2001:660:4406:590:9:2:0:1d",
+      "kavlan-5": "2001:660:4406:591:9:2:0:1d",
+      "kavlan-6": "2001:660:4406:592:9:2:0:1d",
+      "kavlan-7": "2001:660:4406:593:9:2:0:1d",
+      "kavlan-8": "2001:660:4406:594:9:2:0:1d",
+      "kavlan-9": "2001:660:4406:595:9:2:0:1d"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::1d",
-      "kavlan-11": "2001:660:4406:1a0:509:3::1d",
-      "kavlan-12": "2001:660:4406:2a0:509:3::1d",
-      "kavlan-13": "2001:660:4406:4a0:509:3::1d",
-      "kavlan-14": "2001:660:4406:5a0:509:3::1d",
-      "kavlan-16": "2001:660:4406:7a0:509:3::1d",
-      "kavlan-18": "2001:660:4406:8a0:509:3::1d",
-      "kavlan-2": "2001:660:4406:581:9:3::1d",
-      "kavlan-20": "2001:660:4406:3a0:509:3::1d",
-      "kavlan-21": "2001:660:4406:6a0:509:3::1d",
-      "kavlan-3": "2001:660:4406:582:9:3::1d",
-      "kavlan-4": "2001:660:4406:590:9:3::1d",
-      "kavlan-5": "2001:660:4406:591:9:3::1d",
-      "kavlan-6": "2001:660:4406:592:9:3::1d",
-      "kavlan-7": "2001:660:4406:593:9:3::1d",
-      "kavlan-8": "2001:660:4406:594:9:3::1d",
-      "kavlan-9": "2001:660:4406:595:9:3::1d"
+      "kavlan-1": "2001:660:4406:580:9:3:0:1d",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:1d",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:1d",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:1d",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:1d",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:1d",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:1d",
+      "kavlan-2": "2001:660:4406:581:9:3:0:1d",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:1d",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:1d",
+      "kavlan-3": "2001:660:4406:582:9:3:0:1d",
+      "kavlan-4": "2001:660:4406:590:9:3:0:1d",
+      "kavlan-5": "2001:660:4406:591:9:3:0:1d",
+      "kavlan-6": "2001:660:4406:592:9:3:0:1d",
+      "kavlan-7": "2001:660:4406:593:9:3:0:1d",
+      "kavlan-8": "2001:660:4406:594:9:3:0:1d",
+      "kavlan-9": "2001:660:4406:595:9:3:0:1d"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::1d",
-      "kavlan-11": "2001:660:4406:1a0:509:4::1d",
-      "kavlan-12": "2001:660:4406:2a0:509:4::1d",
-      "kavlan-13": "2001:660:4406:4a0:509:4::1d",
-      "kavlan-14": "2001:660:4406:5a0:509:4::1d",
-      "kavlan-16": "2001:660:4406:7a0:509:4::1d",
-      "kavlan-18": "2001:660:4406:8a0:509:4::1d",
-      "kavlan-2": "2001:660:4406:581:9:4::1d",
-      "kavlan-20": "2001:660:4406:3a0:509:4::1d",
-      "kavlan-21": "2001:660:4406:6a0:509:4::1d",
-      "kavlan-3": "2001:660:4406:582:9:4::1d",
-      "kavlan-4": "2001:660:4406:590:9:4::1d",
-      "kavlan-5": "2001:660:4406:591:9:4::1d",
-      "kavlan-6": "2001:660:4406:592:9:4::1d",
-      "kavlan-7": "2001:660:4406:593:9:4::1d",
-      "kavlan-8": "2001:660:4406:594:9:4::1d",
-      "kavlan-9": "2001:660:4406:595:9:4::1d"
+      "kavlan-1": "2001:660:4406:580:9:4:0:1d",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:1d",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:1d",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:1d",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:1d",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:1d",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:1d",
+      "kavlan-2": "2001:660:4406:581:9:4:0:1d",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:1d",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:1d",
+      "kavlan-3": "2001:660:4406:582:9:4:0:1d",
+      "kavlan-4": "2001:660:4406:590:9:4:0:1d",
+      "kavlan-5": "2001:660:4406:591:9:4:0:1d",
+      "kavlan-6": "2001:660:4406:592:9:4:0:1d",
+      "kavlan-7": "2001:660:4406:593:9:4:0:1d",
+      "kavlan-8": "2001:660:4406:594:9:4:0:1d",
+      "kavlan-9": "2001:660:4406:595:9:4:0:1d"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.29",
-      "ip6": "2001:660:4406:500:9:0::1d",
+      "ip6": "2001:660:4406:500:9::1d",
       "kavlan": true,
       "mac": "24:6e:96:02:a9:88",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.129",
-      "ip6": "2001:660:4406:500:9:1::1d",
+      "ip6": "2001:660:4406:500:9:1:0:1d",
       "kavlan": true,
       "mac": "24:6e:96:02:a9:8a",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.229",
-      "ip6": "2001:660:4406:500:9:2::1d",
+      "ip6": "2001:660:4406:500:9:2:0:1d",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:90",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.129",
-      "ip6": "2001:660:4406:500:9:3::1d",
+      "ip6": "2001:660:4406:500:9:3:0:1d",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:92",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.229",
-      "ip6": "2001:660:4406:500:9:4::1d",
+      "ip6": "2001:660:4406:500:9:4:0:1d",
       "kavlan": true,
       "mac": "24:6e:96:02:a9:8c",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-3.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-3.json
index fb31bd5b4d31e17ac344d201fbc10afcc3aeb72e..6d82e83a3e1cac0d9017155205eb71aa9b23b44b 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-3.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-3.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::3",
-      "kavlan-11": "2001:660:4406:1a0:509:0::3",
-      "kavlan-12": "2001:660:4406:2a0:509:0::3",
-      "kavlan-13": "2001:660:4406:4a0:509:0::3",
-      "kavlan-14": "2001:660:4406:5a0:509:0::3",
-      "kavlan-16": "2001:660:4406:7a0:509:0::3",
-      "kavlan-18": "2001:660:4406:8a0:509:0::3",
-      "kavlan-2": "2001:660:4406:581:9:0::3",
-      "kavlan-20": "2001:660:4406:3a0:509:0::3",
-      "kavlan-21": "2001:660:4406:6a0:509:0::3",
-      "kavlan-3": "2001:660:4406:582:9:0::3",
-      "kavlan-4": "2001:660:4406:590:9:0::3",
-      "kavlan-5": "2001:660:4406:591:9:0::3",
-      "kavlan-6": "2001:660:4406:592:9:0::3",
-      "kavlan-7": "2001:660:4406:593:9:0::3",
-      "kavlan-8": "2001:660:4406:594:9:0::3",
-      "kavlan-9": "2001:660:4406:595:9:0::3"
+      "kavlan-1": "2001:660:4406:580:9::3",
+      "kavlan-11": "2001:660:4406:1a0:509::3",
+      "kavlan-12": "2001:660:4406:2a0:509::3",
+      "kavlan-13": "2001:660:4406:4a0:509::3",
+      "kavlan-14": "2001:660:4406:5a0:509::3",
+      "kavlan-16": "2001:660:4406:7a0:509::3",
+      "kavlan-18": "2001:660:4406:8a0:509::3",
+      "kavlan-2": "2001:660:4406:581:9::3",
+      "kavlan-20": "2001:660:4406:3a0:509::3",
+      "kavlan-21": "2001:660:4406:6a0:509::3",
+      "kavlan-3": "2001:660:4406:582:9::3",
+      "kavlan-4": "2001:660:4406:590:9::3",
+      "kavlan-5": "2001:660:4406:591:9::3",
+      "kavlan-6": "2001:660:4406:592:9::3",
+      "kavlan-7": "2001:660:4406:593:9::3",
+      "kavlan-8": "2001:660:4406:594:9::3",
+      "kavlan-9": "2001:660:4406:595:9::3"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::3",
-      "kavlan-11": "2001:660:4406:1a0:509:1::3",
-      "kavlan-12": "2001:660:4406:2a0:509:1::3",
-      "kavlan-13": "2001:660:4406:4a0:509:1::3",
-      "kavlan-14": "2001:660:4406:5a0:509:1::3",
-      "kavlan-16": "2001:660:4406:7a0:509:1::3",
-      "kavlan-18": "2001:660:4406:8a0:509:1::3",
-      "kavlan-2": "2001:660:4406:581:9:1::3",
-      "kavlan-20": "2001:660:4406:3a0:509:1::3",
-      "kavlan-21": "2001:660:4406:6a0:509:1::3",
-      "kavlan-3": "2001:660:4406:582:9:1::3",
-      "kavlan-4": "2001:660:4406:590:9:1::3",
-      "kavlan-5": "2001:660:4406:591:9:1::3",
-      "kavlan-6": "2001:660:4406:592:9:1::3",
-      "kavlan-7": "2001:660:4406:593:9:1::3",
-      "kavlan-8": "2001:660:4406:594:9:1::3",
-      "kavlan-9": "2001:660:4406:595:9:1::3"
+      "kavlan-1": "2001:660:4406:580:9:1:0:3",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:3",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:3",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:3",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:3",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:3",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:3",
+      "kavlan-2": "2001:660:4406:581:9:1:0:3",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:3",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:3",
+      "kavlan-3": "2001:660:4406:582:9:1:0:3",
+      "kavlan-4": "2001:660:4406:590:9:1:0:3",
+      "kavlan-5": "2001:660:4406:591:9:1:0:3",
+      "kavlan-6": "2001:660:4406:592:9:1:0:3",
+      "kavlan-7": "2001:660:4406:593:9:1:0:3",
+      "kavlan-8": "2001:660:4406:594:9:1:0:3",
+      "kavlan-9": "2001:660:4406:595:9:1:0:3"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::3",
-      "kavlan-11": "2001:660:4406:1a0:509:2::3",
-      "kavlan-12": "2001:660:4406:2a0:509:2::3",
-      "kavlan-13": "2001:660:4406:4a0:509:2::3",
-      "kavlan-14": "2001:660:4406:5a0:509:2::3",
-      "kavlan-16": "2001:660:4406:7a0:509:2::3",
-      "kavlan-18": "2001:660:4406:8a0:509:2::3",
-      "kavlan-2": "2001:660:4406:581:9:2::3",
-      "kavlan-20": "2001:660:4406:3a0:509:2::3",
-      "kavlan-21": "2001:660:4406:6a0:509:2::3",
-      "kavlan-3": "2001:660:4406:582:9:2::3",
-      "kavlan-4": "2001:660:4406:590:9:2::3",
-      "kavlan-5": "2001:660:4406:591:9:2::3",
-      "kavlan-6": "2001:660:4406:592:9:2::3",
-      "kavlan-7": "2001:660:4406:593:9:2::3",
-      "kavlan-8": "2001:660:4406:594:9:2::3",
-      "kavlan-9": "2001:660:4406:595:9:2::3"
+      "kavlan-1": "2001:660:4406:580:9:2:0:3",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:3",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:3",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:3",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:3",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:3",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:3",
+      "kavlan-2": "2001:660:4406:581:9:2:0:3",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:3",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:3",
+      "kavlan-3": "2001:660:4406:582:9:2:0:3",
+      "kavlan-4": "2001:660:4406:590:9:2:0:3",
+      "kavlan-5": "2001:660:4406:591:9:2:0:3",
+      "kavlan-6": "2001:660:4406:592:9:2:0:3",
+      "kavlan-7": "2001:660:4406:593:9:2:0:3",
+      "kavlan-8": "2001:660:4406:594:9:2:0:3",
+      "kavlan-9": "2001:660:4406:595:9:2:0:3"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::3",
-      "kavlan-11": "2001:660:4406:1a0:509:3::3",
-      "kavlan-12": "2001:660:4406:2a0:509:3::3",
-      "kavlan-13": "2001:660:4406:4a0:509:3::3",
-      "kavlan-14": "2001:660:4406:5a0:509:3::3",
-      "kavlan-16": "2001:660:4406:7a0:509:3::3",
-      "kavlan-18": "2001:660:4406:8a0:509:3::3",
-      "kavlan-2": "2001:660:4406:581:9:3::3",
-      "kavlan-20": "2001:660:4406:3a0:509:3::3",
-      "kavlan-21": "2001:660:4406:6a0:509:3::3",
-      "kavlan-3": "2001:660:4406:582:9:3::3",
-      "kavlan-4": "2001:660:4406:590:9:3::3",
-      "kavlan-5": "2001:660:4406:591:9:3::3",
-      "kavlan-6": "2001:660:4406:592:9:3::3",
-      "kavlan-7": "2001:660:4406:593:9:3::3",
-      "kavlan-8": "2001:660:4406:594:9:3::3",
-      "kavlan-9": "2001:660:4406:595:9:3::3"
+      "kavlan-1": "2001:660:4406:580:9:3:0:3",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:3",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:3",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:3",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:3",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:3",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:3",
+      "kavlan-2": "2001:660:4406:581:9:3:0:3",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:3",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:3",
+      "kavlan-3": "2001:660:4406:582:9:3:0:3",
+      "kavlan-4": "2001:660:4406:590:9:3:0:3",
+      "kavlan-5": "2001:660:4406:591:9:3:0:3",
+      "kavlan-6": "2001:660:4406:592:9:3:0:3",
+      "kavlan-7": "2001:660:4406:593:9:3:0:3",
+      "kavlan-8": "2001:660:4406:594:9:3:0:3",
+      "kavlan-9": "2001:660:4406:595:9:3:0:3"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::3",
-      "kavlan-11": "2001:660:4406:1a0:509:4::3",
-      "kavlan-12": "2001:660:4406:2a0:509:4::3",
-      "kavlan-13": "2001:660:4406:4a0:509:4::3",
-      "kavlan-14": "2001:660:4406:5a0:509:4::3",
-      "kavlan-16": "2001:660:4406:7a0:509:4::3",
-      "kavlan-18": "2001:660:4406:8a0:509:4::3",
-      "kavlan-2": "2001:660:4406:581:9:4::3",
-      "kavlan-20": "2001:660:4406:3a0:509:4::3",
-      "kavlan-21": "2001:660:4406:6a0:509:4::3",
-      "kavlan-3": "2001:660:4406:582:9:4::3",
-      "kavlan-4": "2001:660:4406:590:9:4::3",
-      "kavlan-5": "2001:660:4406:591:9:4::3",
-      "kavlan-6": "2001:660:4406:592:9:4::3",
-      "kavlan-7": "2001:660:4406:593:9:4::3",
-      "kavlan-8": "2001:660:4406:594:9:4::3",
-      "kavlan-9": "2001:660:4406:595:9:4::3"
+      "kavlan-1": "2001:660:4406:580:9:4:0:3",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:3",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:3",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:3",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:3",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:3",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:3",
+      "kavlan-2": "2001:660:4406:581:9:4:0:3",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:3",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:3",
+      "kavlan-3": "2001:660:4406:582:9:4:0:3",
+      "kavlan-4": "2001:660:4406:590:9:4:0:3",
+      "kavlan-5": "2001:660:4406:591:9:4:0:3",
+      "kavlan-6": "2001:660:4406:592:9:4:0:3",
+      "kavlan-7": "2001:660:4406:593:9:4:0:3",
+      "kavlan-8": "2001:660:4406:594:9:4:0:3",
+      "kavlan-9": "2001:660:4406:595:9:4:0:3"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.3",
-      "ip6": "2001:660:4406:500:9:0::3",
+      "ip6": "2001:660:4406:500:9::3",
       "kavlan": true,
       "mac": "24:6e:96:03:0b:f8",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.103",
-      "ip6": "2001:660:4406:500:9:1::3",
+      "ip6": "2001:660:4406:500:9:1:0:3",
       "kavlan": true,
       "mac": "24:6e:96:03:0b:fa",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.203",
-      "ip6": "2001:660:4406:500:9:2::3",
+      "ip6": "2001:660:4406:500:9:2:0:3",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:88",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.103",
-      "ip6": "2001:660:4406:500:9:3::3",
+      "ip6": "2001:660:4406:500:9:3:0:3",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:8a",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.203",
-      "ip6": "2001:660:4406:500:9:4::3",
+      "ip6": "2001:660:4406:500:9:4:0:3",
       "kavlan": true,
       "mac": "24:6e:96:03:0b:fc",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-30.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-30.json
index a6e4f38ad5c8609c389e1c994a97809e141db879..7e1a4ce633732a2ec5907ccb5a6aa432ddc3e837 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-30.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-30.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::1e",
-      "kavlan-11": "2001:660:4406:1a0:509:0::1e",
-      "kavlan-12": "2001:660:4406:2a0:509:0::1e",
-      "kavlan-13": "2001:660:4406:4a0:509:0::1e",
-      "kavlan-14": "2001:660:4406:5a0:509:0::1e",
-      "kavlan-16": "2001:660:4406:7a0:509:0::1e",
-      "kavlan-18": "2001:660:4406:8a0:509:0::1e",
-      "kavlan-2": "2001:660:4406:581:9:0::1e",
-      "kavlan-20": "2001:660:4406:3a0:509:0::1e",
-      "kavlan-21": "2001:660:4406:6a0:509:0::1e",
-      "kavlan-3": "2001:660:4406:582:9:0::1e",
-      "kavlan-4": "2001:660:4406:590:9:0::1e",
-      "kavlan-5": "2001:660:4406:591:9:0::1e",
-      "kavlan-6": "2001:660:4406:592:9:0::1e",
-      "kavlan-7": "2001:660:4406:593:9:0::1e",
-      "kavlan-8": "2001:660:4406:594:9:0::1e",
-      "kavlan-9": "2001:660:4406:595:9:0::1e"
+      "kavlan-1": "2001:660:4406:580:9::1e",
+      "kavlan-11": "2001:660:4406:1a0:509::1e",
+      "kavlan-12": "2001:660:4406:2a0:509::1e",
+      "kavlan-13": "2001:660:4406:4a0:509::1e",
+      "kavlan-14": "2001:660:4406:5a0:509::1e",
+      "kavlan-16": "2001:660:4406:7a0:509::1e",
+      "kavlan-18": "2001:660:4406:8a0:509::1e",
+      "kavlan-2": "2001:660:4406:581:9::1e",
+      "kavlan-20": "2001:660:4406:3a0:509::1e",
+      "kavlan-21": "2001:660:4406:6a0:509::1e",
+      "kavlan-3": "2001:660:4406:582:9::1e",
+      "kavlan-4": "2001:660:4406:590:9::1e",
+      "kavlan-5": "2001:660:4406:591:9::1e",
+      "kavlan-6": "2001:660:4406:592:9::1e",
+      "kavlan-7": "2001:660:4406:593:9::1e",
+      "kavlan-8": "2001:660:4406:594:9::1e",
+      "kavlan-9": "2001:660:4406:595:9::1e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::1e",
-      "kavlan-11": "2001:660:4406:1a0:509:1::1e",
-      "kavlan-12": "2001:660:4406:2a0:509:1::1e",
-      "kavlan-13": "2001:660:4406:4a0:509:1::1e",
-      "kavlan-14": "2001:660:4406:5a0:509:1::1e",
-      "kavlan-16": "2001:660:4406:7a0:509:1::1e",
-      "kavlan-18": "2001:660:4406:8a0:509:1::1e",
-      "kavlan-2": "2001:660:4406:581:9:1::1e",
-      "kavlan-20": "2001:660:4406:3a0:509:1::1e",
-      "kavlan-21": "2001:660:4406:6a0:509:1::1e",
-      "kavlan-3": "2001:660:4406:582:9:1::1e",
-      "kavlan-4": "2001:660:4406:590:9:1::1e",
-      "kavlan-5": "2001:660:4406:591:9:1::1e",
-      "kavlan-6": "2001:660:4406:592:9:1::1e",
-      "kavlan-7": "2001:660:4406:593:9:1::1e",
-      "kavlan-8": "2001:660:4406:594:9:1::1e",
-      "kavlan-9": "2001:660:4406:595:9:1::1e"
+      "kavlan-1": "2001:660:4406:580:9:1:0:1e",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:1e",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:1e",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:1e",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:1e",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:1e",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:1e",
+      "kavlan-2": "2001:660:4406:581:9:1:0:1e",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:1e",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:1e",
+      "kavlan-3": "2001:660:4406:582:9:1:0:1e",
+      "kavlan-4": "2001:660:4406:590:9:1:0:1e",
+      "kavlan-5": "2001:660:4406:591:9:1:0:1e",
+      "kavlan-6": "2001:660:4406:592:9:1:0:1e",
+      "kavlan-7": "2001:660:4406:593:9:1:0:1e",
+      "kavlan-8": "2001:660:4406:594:9:1:0:1e",
+      "kavlan-9": "2001:660:4406:595:9:1:0:1e"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::1e",
-      "kavlan-11": "2001:660:4406:1a0:509:2::1e",
-      "kavlan-12": "2001:660:4406:2a0:509:2::1e",
-      "kavlan-13": "2001:660:4406:4a0:509:2::1e",
-      "kavlan-14": "2001:660:4406:5a0:509:2::1e",
-      "kavlan-16": "2001:660:4406:7a0:509:2::1e",
-      "kavlan-18": "2001:660:4406:8a0:509:2::1e",
-      "kavlan-2": "2001:660:4406:581:9:2::1e",
-      "kavlan-20": "2001:660:4406:3a0:509:2::1e",
-      "kavlan-21": "2001:660:4406:6a0:509:2::1e",
-      "kavlan-3": "2001:660:4406:582:9:2::1e",
-      "kavlan-4": "2001:660:4406:590:9:2::1e",
-      "kavlan-5": "2001:660:4406:591:9:2::1e",
-      "kavlan-6": "2001:660:4406:592:9:2::1e",
-      "kavlan-7": "2001:660:4406:593:9:2::1e",
-      "kavlan-8": "2001:660:4406:594:9:2::1e",
-      "kavlan-9": "2001:660:4406:595:9:2::1e"
+      "kavlan-1": "2001:660:4406:580:9:2:0:1e",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:1e",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:1e",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:1e",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:1e",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:1e",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:1e",
+      "kavlan-2": "2001:660:4406:581:9:2:0:1e",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:1e",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:1e",
+      "kavlan-3": "2001:660:4406:582:9:2:0:1e",
+      "kavlan-4": "2001:660:4406:590:9:2:0:1e",
+      "kavlan-5": "2001:660:4406:591:9:2:0:1e",
+      "kavlan-6": "2001:660:4406:592:9:2:0:1e",
+      "kavlan-7": "2001:660:4406:593:9:2:0:1e",
+      "kavlan-8": "2001:660:4406:594:9:2:0:1e",
+      "kavlan-9": "2001:660:4406:595:9:2:0:1e"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::1e",
-      "kavlan-11": "2001:660:4406:1a0:509:3::1e",
-      "kavlan-12": "2001:660:4406:2a0:509:3::1e",
-      "kavlan-13": "2001:660:4406:4a0:509:3::1e",
-      "kavlan-14": "2001:660:4406:5a0:509:3::1e",
-      "kavlan-16": "2001:660:4406:7a0:509:3::1e",
-      "kavlan-18": "2001:660:4406:8a0:509:3::1e",
-      "kavlan-2": "2001:660:4406:581:9:3::1e",
-      "kavlan-20": "2001:660:4406:3a0:509:3::1e",
-      "kavlan-21": "2001:660:4406:6a0:509:3::1e",
-      "kavlan-3": "2001:660:4406:582:9:3::1e",
-      "kavlan-4": "2001:660:4406:590:9:3::1e",
-      "kavlan-5": "2001:660:4406:591:9:3::1e",
-      "kavlan-6": "2001:660:4406:592:9:3::1e",
-      "kavlan-7": "2001:660:4406:593:9:3::1e",
-      "kavlan-8": "2001:660:4406:594:9:3::1e",
-      "kavlan-9": "2001:660:4406:595:9:3::1e"
+      "kavlan-1": "2001:660:4406:580:9:3:0:1e",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:1e",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:1e",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:1e",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:1e",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:1e",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:1e",
+      "kavlan-2": "2001:660:4406:581:9:3:0:1e",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:1e",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:1e",
+      "kavlan-3": "2001:660:4406:582:9:3:0:1e",
+      "kavlan-4": "2001:660:4406:590:9:3:0:1e",
+      "kavlan-5": "2001:660:4406:591:9:3:0:1e",
+      "kavlan-6": "2001:660:4406:592:9:3:0:1e",
+      "kavlan-7": "2001:660:4406:593:9:3:0:1e",
+      "kavlan-8": "2001:660:4406:594:9:3:0:1e",
+      "kavlan-9": "2001:660:4406:595:9:3:0:1e"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::1e",
-      "kavlan-11": "2001:660:4406:1a0:509:4::1e",
-      "kavlan-12": "2001:660:4406:2a0:509:4::1e",
-      "kavlan-13": "2001:660:4406:4a0:509:4::1e",
-      "kavlan-14": "2001:660:4406:5a0:509:4::1e",
-      "kavlan-16": "2001:660:4406:7a0:509:4::1e",
-      "kavlan-18": "2001:660:4406:8a0:509:4::1e",
-      "kavlan-2": "2001:660:4406:581:9:4::1e",
-      "kavlan-20": "2001:660:4406:3a0:509:4::1e",
-      "kavlan-21": "2001:660:4406:6a0:509:4::1e",
-      "kavlan-3": "2001:660:4406:582:9:4::1e",
-      "kavlan-4": "2001:660:4406:590:9:4::1e",
-      "kavlan-5": "2001:660:4406:591:9:4::1e",
-      "kavlan-6": "2001:660:4406:592:9:4::1e",
-      "kavlan-7": "2001:660:4406:593:9:4::1e",
-      "kavlan-8": "2001:660:4406:594:9:4::1e",
-      "kavlan-9": "2001:660:4406:595:9:4::1e"
+      "kavlan-1": "2001:660:4406:580:9:4:0:1e",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:1e",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:1e",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:1e",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:1e",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:1e",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:1e",
+      "kavlan-2": "2001:660:4406:581:9:4:0:1e",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:1e",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:1e",
+      "kavlan-3": "2001:660:4406:582:9:4:0:1e",
+      "kavlan-4": "2001:660:4406:590:9:4:0:1e",
+      "kavlan-5": "2001:660:4406:591:9:4:0:1e",
+      "kavlan-6": "2001:660:4406:592:9:4:0:1e",
+      "kavlan-7": "2001:660:4406:593:9:4:0:1e",
+      "kavlan-8": "2001:660:4406:594:9:4:0:1e",
+      "kavlan-9": "2001:660:4406:595:9:4:0:1e"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.30",
-      "ip6": "2001:660:4406:500:9:0::1e",
+      "ip6": "2001:660:4406:500:9::1e",
       "kavlan": true,
       "mac": "24:6e:96:02:a4:30",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.130",
-      "ip6": "2001:660:4406:500:9:1::1e",
+      "ip6": "2001:660:4406:500:9:1:0:1e",
       "kavlan": true,
       "mac": "24:6e:96:02:a4:32",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.230",
-      "ip6": "2001:660:4406:500:9:2::1e",
+      "ip6": "2001:660:4406:500:9:2:0:1e",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:44",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.130",
-      "ip6": "2001:660:4406:500:9:3::1e",
+      "ip6": "2001:660:4406:500:9:3:0:1e",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:46",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.230",
-      "ip6": "2001:660:4406:500:9:4::1e",
+      "ip6": "2001:660:4406:500:9:4:0:1e",
       "kavlan": true,
       "mac": "24:6e:96:02:a4:34",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-31.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-31.json
index 738b682cfac6b1862b5dacbaf253350606236e7c..edb14a45fbe3fbbb88f327aaf0a0f56d72eabfec 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-31.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-31.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::1f",
-      "kavlan-11": "2001:660:4406:1a0:509:0::1f",
-      "kavlan-12": "2001:660:4406:2a0:509:0::1f",
-      "kavlan-13": "2001:660:4406:4a0:509:0::1f",
-      "kavlan-14": "2001:660:4406:5a0:509:0::1f",
-      "kavlan-16": "2001:660:4406:7a0:509:0::1f",
-      "kavlan-18": "2001:660:4406:8a0:509:0::1f",
-      "kavlan-2": "2001:660:4406:581:9:0::1f",
-      "kavlan-20": "2001:660:4406:3a0:509:0::1f",
-      "kavlan-21": "2001:660:4406:6a0:509:0::1f",
-      "kavlan-3": "2001:660:4406:582:9:0::1f",
-      "kavlan-4": "2001:660:4406:590:9:0::1f",
-      "kavlan-5": "2001:660:4406:591:9:0::1f",
-      "kavlan-6": "2001:660:4406:592:9:0::1f",
-      "kavlan-7": "2001:660:4406:593:9:0::1f",
-      "kavlan-8": "2001:660:4406:594:9:0::1f",
-      "kavlan-9": "2001:660:4406:595:9:0::1f"
+      "kavlan-1": "2001:660:4406:580:9::1f",
+      "kavlan-11": "2001:660:4406:1a0:509::1f",
+      "kavlan-12": "2001:660:4406:2a0:509::1f",
+      "kavlan-13": "2001:660:4406:4a0:509::1f",
+      "kavlan-14": "2001:660:4406:5a0:509::1f",
+      "kavlan-16": "2001:660:4406:7a0:509::1f",
+      "kavlan-18": "2001:660:4406:8a0:509::1f",
+      "kavlan-2": "2001:660:4406:581:9::1f",
+      "kavlan-20": "2001:660:4406:3a0:509::1f",
+      "kavlan-21": "2001:660:4406:6a0:509::1f",
+      "kavlan-3": "2001:660:4406:582:9::1f",
+      "kavlan-4": "2001:660:4406:590:9::1f",
+      "kavlan-5": "2001:660:4406:591:9::1f",
+      "kavlan-6": "2001:660:4406:592:9::1f",
+      "kavlan-7": "2001:660:4406:593:9::1f",
+      "kavlan-8": "2001:660:4406:594:9::1f",
+      "kavlan-9": "2001:660:4406:595:9::1f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::1f",
-      "kavlan-11": "2001:660:4406:1a0:509:1::1f",
-      "kavlan-12": "2001:660:4406:2a0:509:1::1f",
-      "kavlan-13": "2001:660:4406:4a0:509:1::1f",
-      "kavlan-14": "2001:660:4406:5a0:509:1::1f",
-      "kavlan-16": "2001:660:4406:7a0:509:1::1f",
-      "kavlan-18": "2001:660:4406:8a0:509:1::1f",
-      "kavlan-2": "2001:660:4406:581:9:1::1f",
-      "kavlan-20": "2001:660:4406:3a0:509:1::1f",
-      "kavlan-21": "2001:660:4406:6a0:509:1::1f",
-      "kavlan-3": "2001:660:4406:582:9:1::1f",
-      "kavlan-4": "2001:660:4406:590:9:1::1f",
-      "kavlan-5": "2001:660:4406:591:9:1::1f",
-      "kavlan-6": "2001:660:4406:592:9:1::1f",
-      "kavlan-7": "2001:660:4406:593:9:1::1f",
-      "kavlan-8": "2001:660:4406:594:9:1::1f",
-      "kavlan-9": "2001:660:4406:595:9:1::1f"
+      "kavlan-1": "2001:660:4406:580:9:1:0:1f",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:1f",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:1f",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:1f",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:1f",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:1f",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:1f",
+      "kavlan-2": "2001:660:4406:581:9:1:0:1f",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:1f",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:1f",
+      "kavlan-3": "2001:660:4406:582:9:1:0:1f",
+      "kavlan-4": "2001:660:4406:590:9:1:0:1f",
+      "kavlan-5": "2001:660:4406:591:9:1:0:1f",
+      "kavlan-6": "2001:660:4406:592:9:1:0:1f",
+      "kavlan-7": "2001:660:4406:593:9:1:0:1f",
+      "kavlan-8": "2001:660:4406:594:9:1:0:1f",
+      "kavlan-9": "2001:660:4406:595:9:1:0:1f"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::1f",
-      "kavlan-11": "2001:660:4406:1a0:509:2::1f",
-      "kavlan-12": "2001:660:4406:2a0:509:2::1f",
-      "kavlan-13": "2001:660:4406:4a0:509:2::1f",
-      "kavlan-14": "2001:660:4406:5a0:509:2::1f",
-      "kavlan-16": "2001:660:4406:7a0:509:2::1f",
-      "kavlan-18": "2001:660:4406:8a0:509:2::1f",
-      "kavlan-2": "2001:660:4406:581:9:2::1f",
-      "kavlan-20": "2001:660:4406:3a0:509:2::1f",
-      "kavlan-21": "2001:660:4406:6a0:509:2::1f",
-      "kavlan-3": "2001:660:4406:582:9:2::1f",
-      "kavlan-4": "2001:660:4406:590:9:2::1f",
-      "kavlan-5": "2001:660:4406:591:9:2::1f",
-      "kavlan-6": "2001:660:4406:592:9:2::1f",
-      "kavlan-7": "2001:660:4406:593:9:2::1f",
-      "kavlan-8": "2001:660:4406:594:9:2::1f",
-      "kavlan-9": "2001:660:4406:595:9:2::1f"
+      "kavlan-1": "2001:660:4406:580:9:2:0:1f",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:1f",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:1f",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:1f",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:1f",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:1f",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:1f",
+      "kavlan-2": "2001:660:4406:581:9:2:0:1f",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:1f",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:1f",
+      "kavlan-3": "2001:660:4406:582:9:2:0:1f",
+      "kavlan-4": "2001:660:4406:590:9:2:0:1f",
+      "kavlan-5": "2001:660:4406:591:9:2:0:1f",
+      "kavlan-6": "2001:660:4406:592:9:2:0:1f",
+      "kavlan-7": "2001:660:4406:593:9:2:0:1f",
+      "kavlan-8": "2001:660:4406:594:9:2:0:1f",
+      "kavlan-9": "2001:660:4406:595:9:2:0:1f"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::1f",
-      "kavlan-11": "2001:660:4406:1a0:509:3::1f",
-      "kavlan-12": "2001:660:4406:2a0:509:3::1f",
-      "kavlan-13": "2001:660:4406:4a0:509:3::1f",
-      "kavlan-14": "2001:660:4406:5a0:509:3::1f",
-      "kavlan-16": "2001:660:4406:7a0:509:3::1f",
-      "kavlan-18": "2001:660:4406:8a0:509:3::1f",
-      "kavlan-2": "2001:660:4406:581:9:3::1f",
-      "kavlan-20": "2001:660:4406:3a0:509:3::1f",
-      "kavlan-21": "2001:660:4406:6a0:509:3::1f",
-      "kavlan-3": "2001:660:4406:582:9:3::1f",
-      "kavlan-4": "2001:660:4406:590:9:3::1f",
-      "kavlan-5": "2001:660:4406:591:9:3::1f",
-      "kavlan-6": "2001:660:4406:592:9:3::1f",
-      "kavlan-7": "2001:660:4406:593:9:3::1f",
-      "kavlan-8": "2001:660:4406:594:9:3::1f",
-      "kavlan-9": "2001:660:4406:595:9:3::1f"
+      "kavlan-1": "2001:660:4406:580:9:3:0:1f",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:1f",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:1f",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:1f",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:1f",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:1f",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:1f",
+      "kavlan-2": "2001:660:4406:581:9:3:0:1f",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:1f",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:1f",
+      "kavlan-3": "2001:660:4406:582:9:3:0:1f",
+      "kavlan-4": "2001:660:4406:590:9:3:0:1f",
+      "kavlan-5": "2001:660:4406:591:9:3:0:1f",
+      "kavlan-6": "2001:660:4406:592:9:3:0:1f",
+      "kavlan-7": "2001:660:4406:593:9:3:0:1f",
+      "kavlan-8": "2001:660:4406:594:9:3:0:1f",
+      "kavlan-9": "2001:660:4406:595:9:3:0:1f"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::1f",
-      "kavlan-11": "2001:660:4406:1a0:509:4::1f",
-      "kavlan-12": "2001:660:4406:2a0:509:4::1f",
-      "kavlan-13": "2001:660:4406:4a0:509:4::1f",
-      "kavlan-14": "2001:660:4406:5a0:509:4::1f",
-      "kavlan-16": "2001:660:4406:7a0:509:4::1f",
-      "kavlan-18": "2001:660:4406:8a0:509:4::1f",
-      "kavlan-2": "2001:660:4406:581:9:4::1f",
-      "kavlan-20": "2001:660:4406:3a0:509:4::1f",
-      "kavlan-21": "2001:660:4406:6a0:509:4::1f",
-      "kavlan-3": "2001:660:4406:582:9:4::1f",
-      "kavlan-4": "2001:660:4406:590:9:4::1f",
-      "kavlan-5": "2001:660:4406:591:9:4::1f",
-      "kavlan-6": "2001:660:4406:592:9:4::1f",
-      "kavlan-7": "2001:660:4406:593:9:4::1f",
-      "kavlan-8": "2001:660:4406:594:9:4::1f",
-      "kavlan-9": "2001:660:4406:595:9:4::1f"
+      "kavlan-1": "2001:660:4406:580:9:4:0:1f",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:1f",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:1f",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:1f",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:1f",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:1f",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:1f",
+      "kavlan-2": "2001:660:4406:581:9:4:0:1f",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:1f",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:1f",
+      "kavlan-3": "2001:660:4406:582:9:4:0:1f",
+      "kavlan-4": "2001:660:4406:590:9:4:0:1f",
+      "kavlan-5": "2001:660:4406:591:9:4:0:1f",
+      "kavlan-6": "2001:660:4406:592:9:4:0:1f",
+      "kavlan-7": "2001:660:4406:593:9:4:0:1f",
+      "kavlan-8": "2001:660:4406:594:9:4:0:1f",
+      "kavlan-9": "2001:660:4406:595:9:4:0:1f"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.31",
-      "ip6": "2001:660:4406:500:9:0::1f",
+      "ip6": "2001:660:4406:500:9::1f",
       "kavlan": true,
       "mac": "24:6e:96:03:10:f8",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.131",
-      "ip6": "2001:660:4406:500:9:1::1f",
+      "ip6": "2001:660:4406:500:9:1:0:1f",
       "kavlan": true,
       "mac": "24:6e:96:03:10:fa",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.231",
-      "ip6": "2001:660:4406:500:9:2::1f",
+      "ip6": "2001:660:4406:500:9:2:0:1f",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:dc",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.131",
-      "ip6": "2001:660:4406:500:9:3::1f",
+      "ip6": "2001:660:4406:500:9:3:0:1f",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:de",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.231",
-      "ip6": "2001:660:4406:500:9:4::1f",
+      "ip6": "2001:660:4406:500:9:4:0:1f",
       "kavlan": true,
       "mac": "24:6e:96:03:10:fc",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-32.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-32.json
index 86c4b1792b7f99730fa3f8704390f531dc23839e..7eac7a5382c5681f78b1d6f10f489b201107488b 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-32.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-32.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::20",
-      "kavlan-11": "2001:660:4406:1a0:509:0::20",
-      "kavlan-12": "2001:660:4406:2a0:509:0::20",
-      "kavlan-13": "2001:660:4406:4a0:509:0::20",
-      "kavlan-14": "2001:660:4406:5a0:509:0::20",
-      "kavlan-16": "2001:660:4406:7a0:509:0::20",
-      "kavlan-18": "2001:660:4406:8a0:509:0::20",
-      "kavlan-2": "2001:660:4406:581:9:0::20",
-      "kavlan-20": "2001:660:4406:3a0:509:0::20",
-      "kavlan-21": "2001:660:4406:6a0:509:0::20",
-      "kavlan-3": "2001:660:4406:582:9:0::20",
-      "kavlan-4": "2001:660:4406:590:9:0::20",
-      "kavlan-5": "2001:660:4406:591:9:0::20",
-      "kavlan-6": "2001:660:4406:592:9:0::20",
-      "kavlan-7": "2001:660:4406:593:9:0::20",
-      "kavlan-8": "2001:660:4406:594:9:0::20",
-      "kavlan-9": "2001:660:4406:595:9:0::20"
+      "kavlan-1": "2001:660:4406:580:9::20",
+      "kavlan-11": "2001:660:4406:1a0:509::20",
+      "kavlan-12": "2001:660:4406:2a0:509::20",
+      "kavlan-13": "2001:660:4406:4a0:509::20",
+      "kavlan-14": "2001:660:4406:5a0:509::20",
+      "kavlan-16": "2001:660:4406:7a0:509::20",
+      "kavlan-18": "2001:660:4406:8a0:509::20",
+      "kavlan-2": "2001:660:4406:581:9::20",
+      "kavlan-20": "2001:660:4406:3a0:509::20",
+      "kavlan-21": "2001:660:4406:6a0:509::20",
+      "kavlan-3": "2001:660:4406:582:9::20",
+      "kavlan-4": "2001:660:4406:590:9::20",
+      "kavlan-5": "2001:660:4406:591:9::20",
+      "kavlan-6": "2001:660:4406:592:9::20",
+      "kavlan-7": "2001:660:4406:593:9::20",
+      "kavlan-8": "2001:660:4406:594:9::20",
+      "kavlan-9": "2001:660:4406:595:9::20"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::20",
-      "kavlan-11": "2001:660:4406:1a0:509:1::20",
-      "kavlan-12": "2001:660:4406:2a0:509:1::20",
-      "kavlan-13": "2001:660:4406:4a0:509:1::20",
-      "kavlan-14": "2001:660:4406:5a0:509:1::20",
-      "kavlan-16": "2001:660:4406:7a0:509:1::20",
-      "kavlan-18": "2001:660:4406:8a0:509:1::20",
-      "kavlan-2": "2001:660:4406:581:9:1::20",
-      "kavlan-20": "2001:660:4406:3a0:509:1::20",
-      "kavlan-21": "2001:660:4406:6a0:509:1::20",
-      "kavlan-3": "2001:660:4406:582:9:1::20",
-      "kavlan-4": "2001:660:4406:590:9:1::20",
-      "kavlan-5": "2001:660:4406:591:9:1::20",
-      "kavlan-6": "2001:660:4406:592:9:1::20",
-      "kavlan-7": "2001:660:4406:593:9:1::20",
-      "kavlan-8": "2001:660:4406:594:9:1::20",
-      "kavlan-9": "2001:660:4406:595:9:1::20"
+      "kavlan-1": "2001:660:4406:580:9:1:0:20",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:20",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:20",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:20",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:20",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:20",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:20",
+      "kavlan-2": "2001:660:4406:581:9:1:0:20",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:20",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:20",
+      "kavlan-3": "2001:660:4406:582:9:1:0:20",
+      "kavlan-4": "2001:660:4406:590:9:1:0:20",
+      "kavlan-5": "2001:660:4406:591:9:1:0:20",
+      "kavlan-6": "2001:660:4406:592:9:1:0:20",
+      "kavlan-7": "2001:660:4406:593:9:1:0:20",
+      "kavlan-8": "2001:660:4406:594:9:1:0:20",
+      "kavlan-9": "2001:660:4406:595:9:1:0:20"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::20",
-      "kavlan-11": "2001:660:4406:1a0:509:2::20",
-      "kavlan-12": "2001:660:4406:2a0:509:2::20",
-      "kavlan-13": "2001:660:4406:4a0:509:2::20",
-      "kavlan-14": "2001:660:4406:5a0:509:2::20",
-      "kavlan-16": "2001:660:4406:7a0:509:2::20",
-      "kavlan-18": "2001:660:4406:8a0:509:2::20",
-      "kavlan-2": "2001:660:4406:581:9:2::20",
-      "kavlan-20": "2001:660:4406:3a0:509:2::20",
-      "kavlan-21": "2001:660:4406:6a0:509:2::20",
-      "kavlan-3": "2001:660:4406:582:9:2::20",
-      "kavlan-4": "2001:660:4406:590:9:2::20",
-      "kavlan-5": "2001:660:4406:591:9:2::20",
-      "kavlan-6": "2001:660:4406:592:9:2::20",
-      "kavlan-7": "2001:660:4406:593:9:2::20",
-      "kavlan-8": "2001:660:4406:594:9:2::20",
-      "kavlan-9": "2001:660:4406:595:9:2::20"
+      "kavlan-1": "2001:660:4406:580:9:2:0:20",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:20",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:20",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:20",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:20",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:20",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:20",
+      "kavlan-2": "2001:660:4406:581:9:2:0:20",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:20",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:20",
+      "kavlan-3": "2001:660:4406:582:9:2:0:20",
+      "kavlan-4": "2001:660:4406:590:9:2:0:20",
+      "kavlan-5": "2001:660:4406:591:9:2:0:20",
+      "kavlan-6": "2001:660:4406:592:9:2:0:20",
+      "kavlan-7": "2001:660:4406:593:9:2:0:20",
+      "kavlan-8": "2001:660:4406:594:9:2:0:20",
+      "kavlan-9": "2001:660:4406:595:9:2:0:20"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::20",
-      "kavlan-11": "2001:660:4406:1a0:509:3::20",
-      "kavlan-12": "2001:660:4406:2a0:509:3::20",
-      "kavlan-13": "2001:660:4406:4a0:509:3::20",
-      "kavlan-14": "2001:660:4406:5a0:509:3::20",
-      "kavlan-16": "2001:660:4406:7a0:509:3::20",
-      "kavlan-18": "2001:660:4406:8a0:509:3::20",
-      "kavlan-2": "2001:660:4406:581:9:3::20",
-      "kavlan-20": "2001:660:4406:3a0:509:3::20",
-      "kavlan-21": "2001:660:4406:6a0:509:3::20",
-      "kavlan-3": "2001:660:4406:582:9:3::20",
-      "kavlan-4": "2001:660:4406:590:9:3::20",
-      "kavlan-5": "2001:660:4406:591:9:3::20",
-      "kavlan-6": "2001:660:4406:592:9:3::20",
-      "kavlan-7": "2001:660:4406:593:9:3::20",
-      "kavlan-8": "2001:660:4406:594:9:3::20",
-      "kavlan-9": "2001:660:4406:595:9:3::20"
+      "kavlan-1": "2001:660:4406:580:9:3:0:20",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:20",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:20",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:20",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:20",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:20",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:20",
+      "kavlan-2": "2001:660:4406:581:9:3:0:20",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:20",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:20",
+      "kavlan-3": "2001:660:4406:582:9:3:0:20",
+      "kavlan-4": "2001:660:4406:590:9:3:0:20",
+      "kavlan-5": "2001:660:4406:591:9:3:0:20",
+      "kavlan-6": "2001:660:4406:592:9:3:0:20",
+      "kavlan-7": "2001:660:4406:593:9:3:0:20",
+      "kavlan-8": "2001:660:4406:594:9:3:0:20",
+      "kavlan-9": "2001:660:4406:595:9:3:0:20"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::20",
-      "kavlan-11": "2001:660:4406:1a0:509:4::20",
-      "kavlan-12": "2001:660:4406:2a0:509:4::20",
-      "kavlan-13": "2001:660:4406:4a0:509:4::20",
-      "kavlan-14": "2001:660:4406:5a0:509:4::20",
-      "kavlan-16": "2001:660:4406:7a0:509:4::20",
-      "kavlan-18": "2001:660:4406:8a0:509:4::20",
-      "kavlan-2": "2001:660:4406:581:9:4::20",
-      "kavlan-20": "2001:660:4406:3a0:509:4::20",
-      "kavlan-21": "2001:660:4406:6a0:509:4::20",
-      "kavlan-3": "2001:660:4406:582:9:4::20",
-      "kavlan-4": "2001:660:4406:590:9:4::20",
-      "kavlan-5": "2001:660:4406:591:9:4::20",
-      "kavlan-6": "2001:660:4406:592:9:4::20",
-      "kavlan-7": "2001:660:4406:593:9:4::20",
-      "kavlan-8": "2001:660:4406:594:9:4::20",
-      "kavlan-9": "2001:660:4406:595:9:4::20"
+      "kavlan-1": "2001:660:4406:580:9:4:0:20",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:20",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:20",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:20",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:20",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:20",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:20",
+      "kavlan-2": "2001:660:4406:581:9:4:0:20",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:20",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:20",
+      "kavlan-3": "2001:660:4406:582:9:4:0:20",
+      "kavlan-4": "2001:660:4406:590:9:4:0:20",
+      "kavlan-5": "2001:660:4406:591:9:4:0:20",
+      "kavlan-6": "2001:660:4406:592:9:4:0:20",
+      "kavlan-7": "2001:660:4406:593:9:4:0:20",
+      "kavlan-8": "2001:660:4406:594:9:4:0:20",
+      "kavlan-9": "2001:660:4406:595:9:4:0:20"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.32",
-      "ip6": "2001:660:4406:500:9:0::20",
+      "ip6": "2001:660:4406:500:9::20",
       "kavlan": true,
       "mac": "24:6e:96:03:11:d0",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.132",
-      "ip6": "2001:660:4406:500:9:1::20",
+      "ip6": "2001:660:4406:500:9:1:0:20",
       "kavlan": true,
       "mac": "24:6e:96:03:11:d2",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.232",
-      "ip6": "2001:660:4406:500:9:2::20",
+      "ip6": "2001:660:4406:500:9:2:0:20",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:2c",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.132",
-      "ip6": "2001:660:4406:500:9:3::20",
+      "ip6": "2001:660:4406:500:9:3:0:20",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:2e",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.232",
-      "ip6": "2001:660:4406:500:9:4::20",
+      "ip6": "2001:660:4406:500:9:4:0:20",
       "kavlan": true,
       "mac": "24:6e:96:03:11:d4",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-33.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-33.json
index 727e7e7b348a93615952f65be01d01022a70b646..c840ae37c3f6b3351974c1c2fc86eca538716a38 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-33.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-33.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::21",
-      "kavlan-11": "2001:660:4406:1a0:509:0::21",
-      "kavlan-12": "2001:660:4406:2a0:509:0::21",
-      "kavlan-13": "2001:660:4406:4a0:509:0::21",
-      "kavlan-14": "2001:660:4406:5a0:509:0::21",
-      "kavlan-16": "2001:660:4406:7a0:509:0::21",
-      "kavlan-18": "2001:660:4406:8a0:509:0::21",
-      "kavlan-2": "2001:660:4406:581:9:0::21",
-      "kavlan-20": "2001:660:4406:3a0:509:0::21",
-      "kavlan-21": "2001:660:4406:6a0:509:0::21",
-      "kavlan-3": "2001:660:4406:582:9:0::21",
-      "kavlan-4": "2001:660:4406:590:9:0::21",
-      "kavlan-5": "2001:660:4406:591:9:0::21",
-      "kavlan-6": "2001:660:4406:592:9:0::21",
-      "kavlan-7": "2001:660:4406:593:9:0::21",
-      "kavlan-8": "2001:660:4406:594:9:0::21",
-      "kavlan-9": "2001:660:4406:595:9:0::21"
+      "kavlan-1": "2001:660:4406:580:9::21",
+      "kavlan-11": "2001:660:4406:1a0:509::21",
+      "kavlan-12": "2001:660:4406:2a0:509::21",
+      "kavlan-13": "2001:660:4406:4a0:509::21",
+      "kavlan-14": "2001:660:4406:5a0:509::21",
+      "kavlan-16": "2001:660:4406:7a0:509::21",
+      "kavlan-18": "2001:660:4406:8a0:509::21",
+      "kavlan-2": "2001:660:4406:581:9::21",
+      "kavlan-20": "2001:660:4406:3a0:509::21",
+      "kavlan-21": "2001:660:4406:6a0:509::21",
+      "kavlan-3": "2001:660:4406:582:9::21",
+      "kavlan-4": "2001:660:4406:590:9::21",
+      "kavlan-5": "2001:660:4406:591:9::21",
+      "kavlan-6": "2001:660:4406:592:9::21",
+      "kavlan-7": "2001:660:4406:593:9::21",
+      "kavlan-8": "2001:660:4406:594:9::21",
+      "kavlan-9": "2001:660:4406:595:9::21"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::21",
-      "kavlan-11": "2001:660:4406:1a0:509:1::21",
-      "kavlan-12": "2001:660:4406:2a0:509:1::21",
-      "kavlan-13": "2001:660:4406:4a0:509:1::21",
-      "kavlan-14": "2001:660:4406:5a0:509:1::21",
-      "kavlan-16": "2001:660:4406:7a0:509:1::21",
-      "kavlan-18": "2001:660:4406:8a0:509:1::21",
-      "kavlan-2": "2001:660:4406:581:9:1::21",
-      "kavlan-20": "2001:660:4406:3a0:509:1::21",
-      "kavlan-21": "2001:660:4406:6a0:509:1::21",
-      "kavlan-3": "2001:660:4406:582:9:1::21",
-      "kavlan-4": "2001:660:4406:590:9:1::21",
-      "kavlan-5": "2001:660:4406:591:9:1::21",
-      "kavlan-6": "2001:660:4406:592:9:1::21",
-      "kavlan-7": "2001:660:4406:593:9:1::21",
-      "kavlan-8": "2001:660:4406:594:9:1::21",
-      "kavlan-9": "2001:660:4406:595:9:1::21"
+      "kavlan-1": "2001:660:4406:580:9:1:0:21",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:21",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:21",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:21",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:21",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:21",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:21",
+      "kavlan-2": "2001:660:4406:581:9:1:0:21",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:21",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:21",
+      "kavlan-3": "2001:660:4406:582:9:1:0:21",
+      "kavlan-4": "2001:660:4406:590:9:1:0:21",
+      "kavlan-5": "2001:660:4406:591:9:1:0:21",
+      "kavlan-6": "2001:660:4406:592:9:1:0:21",
+      "kavlan-7": "2001:660:4406:593:9:1:0:21",
+      "kavlan-8": "2001:660:4406:594:9:1:0:21",
+      "kavlan-9": "2001:660:4406:595:9:1:0:21"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::21",
-      "kavlan-11": "2001:660:4406:1a0:509:2::21",
-      "kavlan-12": "2001:660:4406:2a0:509:2::21",
-      "kavlan-13": "2001:660:4406:4a0:509:2::21",
-      "kavlan-14": "2001:660:4406:5a0:509:2::21",
-      "kavlan-16": "2001:660:4406:7a0:509:2::21",
-      "kavlan-18": "2001:660:4406:8a0:509:2::21",
-      "kavlan-2": "2001:660:4406:581:9:2::21",
-      "kavlan-20": "2001:660:4406:3a0:509:2::21",
-      "kavlan-21": "2001:660:4406:6a0:509:2::21",
-      "kavlan-3": "2001:660:4406:582:9:2::21",
-      "kavlan-4": "2001:660:4406:590:9:2::21",
-      "kavlan-5": "2001:660:4406:591:9:2::21",
-      "kavlan-6": "2001:660:4406:592:9:2::21",
-      "kavlan-7": "2001:660:4406:593:9:2::21",
-      "kavlan-8": "2001:660:4406:594:9:2::21",
-      "kavlan-9": "2001:660:4406:595:9:2::21"
+      "kavlan-1": "2001:660:4406:580:9:2:0:21",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:21",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:21",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:21",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:21",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:21",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:21",
+      "kavlan-2": "2001:660:4406:581:9:2:0:21",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:21",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:21",
+      "kavlan-3": "2001:660:4406:582:9:2:0:21",
+      "kavlan-4": "2001:660:4406:590:9:2:0:21",
+      "kavlan-5": "2001:660:4406:591:9:2:0:21",
+      "kavlan-6": "2001:660:4406:592:9:2:0:21",
+      "kavlan-7": "2001:660:4406:593:9:2:0:21",
+      "kavlan-8": "2001:660:4406:594:9:2:0:21",
+      "kavlan-9": "2001:660:4406:595:9:2:0:21"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::21",
-      "kavlan-11": "2001:660:4406:1a0:509:3::21",
-      "kavlan-12": "2001:660:4406:2a0:509:3::21",
-      "kavlan-13": "2001:660:4406:4a0:509:3::21",
-      "kavlan-14": "2001:660:4406:5a0:509:3::21",
-      "kavlan-16": "2001:660:4406:7a0:509:3::21",
-      "kavlan-18": "2001:660:4406:8a0:509:3::21",
-      "kavlan-2": "2001:660:4406:581:9:3::21",
-      "kavlan-20": "2001:660:4406:3a0:509:3::21",
-      "kavlan-21": "2001:660:4406:6a0:509:3::21",
-      "kavlan-3": "2001:660:4406:582:9:3::21",
-      "kavlan-4": "2001:660:4406:590:9:3::21",
-      "kavlan-5": "2001:660:4406:591:9:3::21",
-      "kavlan-6": "2001:660:4406:592:9:3::21",
-      "kavlan-7": "2001:660:4406:593:9:3::21",
-      "kavlan-8": "2001:660:4406:594:9:3::21",
-      "kavlan-9": "2001:660:4406:595:9:3::21"
+      "kavlan-1": "2001:660:4406:580:9:3:0:21",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:21",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:21",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:21",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:21",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:21",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:21",
+      "kavlan-2": "2001:660:4406:581:9:3:0:21",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:21",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:21",
+      "kavlan-3": "2001:660:4406:582:9:3:0:21",
+      "kavlan-4": "2001:660:4406:590:9:3:0:21",
+      "kavlan-5": "2001:660:4406:591:9:3:0:21",
+      "kavlan-6": "2001:660:4406:592:9:3:0:21",
+      "kavlan-7": "2001:660:4406:593:9:3:0:21",
+      "kavlan-8": "2001:660:4406:594:9:3:0:21",
+      "kavlan-9": "2001:660:4406:595:9:3:0:21"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::21",
-      "kavlan-11": "2001:660:4406:1a0:509:4::21",
-      "kavlan-12": "2001:660:4406:2a0:509:4::21",
-      "kavlan-13": "2001:660:4406:4a0:509:4::21",
-      "kavlan-14": "2001:660:4406:5a0:509:4::21",
-      "kavlan-16": "2001:660:4406:7a0:509:4::21",
-      "kavlan-18": "2001:660:4406:8a0:509:4::21",
-      "kavlan-2": "2001:660:4406:581:9:4::21",
-      "kavlan-20": "2001:660:4406:3a0:509:4::21",
-      "kavlan-21": "2001:660:4406:6a0:509:4::21",
-      "kavlan-3": "2001:660:4406:582:9:4::21",
-      "kavlan-4": "2001:660:4406:590:9:4::21",
-      "kavlan-5": "2001:660:4406:591:9:4::21",
-      "kavlan-6": "2001:660:4406:592:9:4::21",
-      "kavlan-7": "2001:660:4406:593:9:4::21",
-      "kavlan-8": "2001:660:4406:594:9:4::21",
-      "kavlan-9": "2001:660:4406:595:9:4::21"
+      "kavlan-1": "2001:660:4406:580:9:4:0:21",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:21",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:21",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:21",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:21",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:21",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:21",
+      "kavlan-2": "2001:660:4406:581:9:4:0:21",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:21",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:21",
+      "kavlan-3": "2001:660:4406:582:9:4:0:21",
+      "kavlan-4": "2001:660:4406:590:9:4:0:21",
+      "kavlan-5": "2001:660:4406:591:9:4:0:21",
+      "kavlan-6": "2001:660:4406:592:9:4:0:21",
+      "kavlan-7": "2001:660:4406:593:9:4:0:21",
+      "kavlan-8": "2001:660:4406:594:9:4:0:21",
+      "kavlan-9": "2001:660:4406:595:9:4:0:21"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.33",
-      "ip6": "2001:660:4406:500:9:0::21",
+      "ip6": "2001:660:4406:500:9::21",
       "kavlan": true,
       "mac": "24:6e:96:03:09:b0",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.133",
-      "ip6": "2001:660:4406:500:9:1::21",
+      "ip6": "2001:660:4406:500:9:1:0:21",
       "kavlan": true,
       "mac": "24:6e:96:03:09:b2",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.233",
-      "ip6": "2001:660:4406:500:9:2::21",
+      "ip6": "2001:660:4406:500:9:2:0:21",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:e4",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.133",
-      "ip6": "2001:660:4406:500:9:3::21",
+      "ip6": "2001:660:4406:500:9:3:0:21",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:e6",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.233",
-      "ip6": "2001:660:4406:500:9:4::21",
+      "ip6": "2001:660:4406:500:9:4:0:21",
       "kavlan": true,
       "mac": "24:6e:96:03:09:b4",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-34.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-34.json
index 62c88d33d5eef5d5976486f809ae136e02da05bd..e744dbb3f6f3a11236a03c907de6c2b0d5317c6c 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-34.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-34.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::22",
-      "kavlan-11": "2001:660:4406:1a0:509:0::22",
-      "kavlan-12": "2001:660:4406:2a0:509:0::22",
-      "kavlan-13": "2001:660:4406:4a0:509:0::22",
-      "kavlan-14": "2001:660:4406:5a0:509:0::22",
-      "kavlan-16": "2001:660:4406:7a0:509:0::22",
-      "kavlan-18": "2001:660:4406:8a0:509:0::22",
-      "kavlan-2": "2001:660:4406:581:9:0::22",
-      "kavlan-20": "2001:660:4406:3a0:509:0::22",
-      "kavlan-21": "2001:660:4406:6a0:509:0::22",
-      "kavlan-3": "2001:660:4406:582:9:0::22",
-      "kavlan-4": "2001:660:4406:590:9:0::22",
-      "kavlan-5": "2001:660:4406:591:9:0::22",
-      "kavlan-6": "2001:660:4406:592:9:0::22",
-      "kavlan-7": "2001:660:4406:593:9:0::22",
-      "kavlan-8": "2001:660:4406:594:9:0::22",
-      "kavlan-9": "2001:660:4406:595:9:0::22"
+      "kavlan-1": "2001:660:4406:580:9::22",
+      "kavlan-11": "2001:660:4406:1a0:509::22",
+      "kavlan-12": "2001:660:4406:2a0:509::22",
+      "kavlan-13": "2001:660:4406:4a0:509::22",
+      "kavlan-14": "2001:660:4406:5a0:509::22",
+      "kavlan-16": "2001:660:4406:7a0:509::22",
+      "kavlan-18": "2001:660:4406:8a0:509::22",
+      "kavlan-2": "2001:660:4406:581:9::22",
+      "kavlan-20": "2001:660:4406:3a0:509::22",
+      "kavlan-21": "2001:660:4406:6a0:509::22",
+      "kavlan-3": "2001:660:4406:582:9::22",
+      "kavlan-4": "2001:660:4406:590:9::22",
+      "kavlan-5": "2001:660:4406:591:9::22",
+      "kavlan-6": "2001:660:4406:592:9::22",
+      "kavlan-7": "2001:660:4406:593:9::22",
+      "kavlan-8": "2001:660:4406:594:9::22",
+      "kavlan-9": "2001:660:4406:595:9::22"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::22",
-      "kavlan-11": "2001:660:4406:1a0:509:1::22",
-      "kavlan-12": "2001:660:4406:2a0:509:1::22",
-      "kavlan-13": "2001:660:4406:4a0:509:1::22",
-      "kavlan-14": "2001:660:4406:5a0:509:1::22",
-      "kavlan-16": "2001:660:4406:7a0:509:1::22",
-      "kavlan-18": "2001:660:4406:8a0:509:1::22",
-      "kavlan-2": "2001:660:4406:581:9:1::22",
-      "kavlan-20": "2001:660:4406:3a0:509:1::22",
-      "kavlan-21": "2001:660:4406:6a0:509:1::22",
-      "kavlan-3": "2001:660:4406:582:9:1::22",
-      "kavlan-4": "2001:660:4406:590:9:1::22",
-      "kavlan-5": "2001:660:4406:591:9:1::22",
-      "kavlan-6": "2001:660:4406:592:9:1::22",
-      "kavlan-7": "2001:660:4406:593:9:1::22",
-      "kavlan-8": "2001:660:4406:594:9:1::22",
-      "kavlan-9": "2001:660:4406:595:9:1::22"
+      "kavlan-1": "2001:660:4406:580:9:1:0:22",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:22",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:22",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:22",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:22",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:22",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:22",
+      "kavlan-2": "2001:660:4406:581:9:1:0:22",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:22",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:22",
+      "kavlan-3": "2001:660:4406:582:9:1:0:22",
+      "kavlan-4": "2001:660:4406:590:9:1:0:22",
+      "kavlan-5": "2001:660:4406:591:9:1:0:22",
+      "kavlan-6": "2001:660:4406:592:9:1:0:22",
+      "kavlan-7": "2001:660:4406:593:9:1:0:22",
+      "kavlan-8": "2001:660:4406:594:9:1:0:22",
+      "kavlan-9": "2001:660:4406:595:9:1:0:22"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::22",
-      "kavlan-11": "2001:660:4406:1a0:509:2::22",
-      "kavlan-12": "2001:660:4406:2a0:509:2::22",
-      "kavlan-13": "2001:660:4406:4a0:509:2::22",
-      "kavlan-14": "2001:660:4406:5a0:509:2::22",
-      "kavlan-16": "2001:660:4406:7a0:509:2::22",
-      "kavlan-18": "2001:660:4406:8a0:509:2::22",
-      "kavlan-2": "2001:660:4406:581:9:2::22",
-      "kavlan-20": "2001:660:4406:3a0:509:2::22",
-      "kavlan-21": "2001:660:4406:6a0:509:2::22",
-      "kavlan-3": "2001:660:4406:582:9:2::22",
-      "kavlan-4": "2001:660:4406:590:9:2::22",
-      "kavlan-5": "2001:660:4406:591:9:2::22",
-      "kavlan-6": "2001:660:4406:592:9:2::22",
-      "kavlan-7": "2001:660:4406:593:9:2::22",
-      "kavlan-8": "2001:660:4406:594:9:2::22",
-      "kavlan-9": "2001:660:4406:595:9:2::22"
+      "kavlan-1": "2001:660:4406:580:9:2:0:22",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:22",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:22",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:22",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:22",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:22",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:22",
+      "kavlan-2": "2001:660:4406:581:9:2:0:22",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:22",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:22",
+      "kavlan-3": "2001:660:4406:582:9:2:0:22",
+      "kavlan-4": "2001:660:4406:590:9:2:0:22",
+      "kavlan-5": "2001:660:4406:591:9:2:0:22",
+      "kavlan-6": "2001:660:4406:592:9:2:0:22",
+      "kavlan-7": "2001:660:4406:593:9:2:0:22",
+      "kavlan-8": "2001:660:4406:594:9:2:0:22",
+      "kavlan-9": "2001:660:4406:595:9:2:0:22"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::22",
-      "kavlan-11": "2001:660:4406:1a0:509:3::22",
-      "kavlan-12": "2001:660:4406:2a0:509:3::22",
-      "kavlan-13": "2001:660:4406:4a0:509:3::22",
-      "kavlan-14": "2001:660:4406:5a0:509:3::22",
-      "kavlan-16": "2001:660:4406:7a0:509:3::22",
-      "kavlan-18": "2001:660:4406:8a0:509:3::22",
-      "kavlan-2": "2001:660:4406:581:9:3::22",
-      "kavlan-20": "2001:660:4406:3a0:509:3::22",
-      "kavlan-21": "2001:660:4406:6a0:509:3::22",
-      "kavlan-3": "2001:660:4406:582:9:3::22",
-      "kavlan-4": "2001:660:4406:590:9:3::22",
-      "kavlan-5": "2001:660:4406:591:9:3::22",
-      "kavlan-6": "2001:660:4406:592:9:3::22",
-      "kavlan-7": "2001:660:4406:593:9:3::22",
-      "kavlan-8": "2001:660:4406:594:9:3::22",
-      "kavlan-9": "2001:660:4406:595:9:3::22"
+      "kavlan-1": "2001:660:4406:580:9:3:0:22",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:22",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:22",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:22",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:22",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:22",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:22",
+      "kavlan-2": "2001:660:4406:581:9:3:0:22",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:22",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:22",
+      "kavlan-3": "2001:660:4406:582:9:3:0:22",
+      "kavlan-4": "2001:660:4406:590:9:3:0:22",
+      "kavlan-5": "2001:660:4406:591:9:3:0:22",
+      "kavlan-6": "2001:660:4406:592:9:3:0:22",
+      "kavlan-7": "2001:660:4406:593:9:3:0:22",
+      "kavlan-8": "2001:660:4406:594:9:3:0:22",
+      "kavlan-9": "2001:660:4406:595:9:3:0:22"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::22",
-      "kavlan-11": "2001:660:4406:1a0:509:4::22",
-      "kavlan-12": "2001:660:4406:2a0:509:4::22",
-      "kavlan-13": "2001:660:4406:4a0:509:4::22",
-      "kavlan-14": "2001:660:4406:5a0:509:4::22",
-      "kavlan-16": "2001:660:4406:7a0:509:4::22",
-      "kavlan-18": "2001:660:4406:8a0:509:4::22",
-      "kavlan-2": "2001:660:4406:581:9:4::22",
-      "kavlan-20": "2001:660:4406:3a0:509:4::22",
-      "kavlan-21": "2001:660:4406:6a0:509:4::22",
-      "kavlan-3": "2001:660:4406:582:9:4::22",
-      "kavlan-4": "2001:660:4406:590:9:4::22",
-      "kavlan-5": "2001:660:4406:591:9:4::22",
-      "kavlan-6": "2001:660:4406:592:9:4::22",
-      "kavlan-7": "2001:660:4406:593:9:4::22",
-      "kavlan-8": "2001:660:4406:594:9:4::22",
-      "kavlan-9": "2001:660:4406:595:9:4::22"
+      "kavlan-1": "2001:660:4406:580:9:4:0:22",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:22",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:22",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:22",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:22",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:22",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:22",
+      "kavlan-2": "2001:660:4406:581:9:4:0:22",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:22",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:22",
+      "kavlan-3": "2001:660:4406:582:9:4:0:22",
+      "kavlan-4": "2001:660:4406:590:9:4:0:22",
+      "kavlan-5": "2001:660:4406:591:9:4:0:22",
+      "kavlan-6": "2001:660:4406:592:9:4:0:22",
+      "kavlan-7": "2001:660:4406:593:9:4:0:22",
+      "kavlan-8": "2001:660:4406:594:9:4:0:22",
+      "kavlan-9": "2001:660:4406:595:9:4:0:22"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.34",
-      "ip6": "2001:660:4406:500:9:0::22",
+      "ip6": "2001:660:4406:500:9::22",
       "kavlan": true,
       "mac": "24:6e:96:03:1f:c8",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.134",
-      "ip6": "2001:660:4406:500:9:1::22",
+      "ip6": "2001:660:4406:500:9:1:0:22",
       "kavlan": true,
       "mac": "24:6e:96:03:1f:ca",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.234",
-      "ip6": "2001:660:4406:500:9:2::22",
+      "ip6": "2001:660:4406:500:9:2:0:22",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4d:fc",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.134",
-      "ip6": "2001:660:4406:500:9:3::22",
+      "ip6": "2001:660:4406:500:9:3:0:22",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4d:fe",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.234",
-      "ip6": "2001:660:4406:500:9:4::22",
+      "ip6": "2001:660:4406:500:9:4:0:22",
       "kavlan": true,
       "mac": "24:6e:96:03:1f:cc",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-35.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-35.json
index b7f4f22d70e8ba991cd5da79f0699194e6dc9b7d..a6d9734eb1c218889de2c5c09c8fd0687772d68f 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-35.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-35.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::23",
-      "kavlan-11": "2001:660:4406:1a0:509:0::23",
-      "kavlan-12": "2001:660:4406:2a0:509:0::23",
-      "kavlan-13": "2001:660:4406:4a0:509:0::23",
-      "kavlan-14": "2001:660:4406:5a0:509:0::23",
-      "kavlan-16": "2001:660:4406:7a0:509:0::23",
-      "kavlan-18": "2001:660:4406:8a0:509:0::23",
-      "kavlan-2": "2001:660:4406:581:9:0::23",
-      "kavlan-20": "2001:660:4406:3a0:509:0::23",
-      "kavlan-21": "2001:660:4406:6a0:509:0::23",
-      "kavlan-3": "2001:660:4406:582:9:0::23",
-      "kavlan-4": "2001:660:4406:590:9:0::23",
-      "kavlan-5": "2001:660:4406:591:9:0::23",
-      "kavlan-6": "2001:660:4406:592:9:0::23",
-      "kavlan-7": "2001:660:4406:593:9:0::23",
-      "kavlan-8": "2001:660:4406:594:9:0::23",
-      "kavlan-9": "2001:660:4406:595:9:0::23"
+      "kavlan-1": "2001:660:4406:580:9::23",
+      "kavlan-11": "2001:660:4406:1a0:509::23",
+      "kavlan-12": "2001:660:4406:2a0:509::23",
+      "kavlan-13": "2001:660:4406:4a0:509::23",
+      "kavlan-14": "2001:660:4406:5a0:509::23",
+      "kavlan-16": "2001:660:4406:7a0:509::23",
+      "kavlan-18": "2001:660:4406:8a0:509::23",
+      "kavlan-2": "2001:660:4406:581:9::23",
+      "kavlan-20": "2001:660:4406:3a0:509::23",
+      "kavlan-21": "2001:660:4406:6a0:509::23",
+      "kavlan-3": "2001:660:4406:582:9::23",
+      "kavlan-4": "2001:660:4406:590:9::23",
+      "kavlan-5": "2001:660:4406:591:9::23",
+      "kavlan-6": "2001:660:4406:592:9::23",
+      "kavlan-7": "2001:660:4406:593:9::23",
+      "kavlan-8": "2001:660:4406:594:9::23",
+      "kavlan-9": "2001:660:4406:595:9::23"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::23",
-      "kavlan-11": "2001:660:4406:1a0:509:1::23",
-      "kavlan-12": "2001:660:4406:2a0:509:1::23",
-      "kavlan-13": "2001:660:4406:4a0:509:1::23",
-      "kavlan-14": "2001:660:4406:5a0:509:1::23",
-      "kavlan-16": "2001:660:4406:7a0:509:1::23",
-      "kavlan-18": "2001:660:4406:8a0:509:1::23",
-      "kavlan-2": "2001:660:4406:581:9:1::23",
-      "kavlan-20": "2001:660:4406:3a0:509:1::23",
-      "kavlan-21": "2001:660:4406:6a0:509:1::23",
-      "kavlan-3": "2001:660:4406:582:9:1::23",
-      "kavlan-4": "2001:660:4406:590:9:1::23",
-      "kavlan-5": "2001:660:4406:591:9:1::23",
-      "kavlan-6": "2001:660:4406:592:9:1::23",
-      "kavlan-7": "2001:660:4406:593:9:1::23",
-      "kavlan-8": "2001:660:4406:594:9:1::23",
-      "kavlan-9": "2001:660:4406:595:9:1::23"
+      "kavlan-1": "2001:660:4406:580:9:1:0:23",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:23",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:23",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:23",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:23",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:23",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:23",
+      "kavlan-2": "2001:660:4406:581:9:1:0:23",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:23",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:23",
+      "kavlan-3": "2001:660:4406:582:9:1:0:23",
+      "kavlan-4": "2001:660:4406:590:9:1:0:23",
+      "kavlan-5": "2001:660:4406:591:9:1:0:23",
+      "kavlan-6": "2001:660:4406:592:9:1:0:23",
+      "kavlan-7": "2001:660:4406:593:9:1:0:23",
+      "kavlan-8": "2001:660:4406:594:9:1:0:23",
+      "kavlan-9": "2001:660:4406:595:9:1:0:23"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::23",
-      "kavlan-11": "2001:660:4406:1a0:509:2::23",
-      "kavlan-12": "2001:660:4406:2a0:509:2::23",
-      "kavlan-13": "2001:660:4406:4a0:509:2::23",
-      "kavlan-14": "2001:660:4406:5a0:509:2::23",
-      "kavlan-16": "2001:660:4406:7a0:509:2::23",
-      "kavlan-18": "2001:660:4406:8a0:509:2::23",
-      "kavlan-2": "2001:660:4406:581:9:2::23",
-      "kavlan-20": "2001:660:4406:3a0:509:2::23",
-      "kavlan-21": "2001:660:4406:6a0:509:2::23",
-      "kavlan-3": "2001:660:4406:582:9:2::23",
-      "kavlan-4": "2001:660:4406:590:9:2::23",
-      "kavlan-5": "2001:660:4406:591:9:2::23",
-      "kavlan-6": "2001:660:4406:592:9:2::23",
-      "kavlan-7": "2001:660:4406:593:9:2::23",
-      "kavlan-8": "2001:660:4406:594:9:2::23",
-      "kavlan-9": "2001:660:4406:595:9:2::23"
+      "kavlan-1": "2001:660:4406:580:9:2:0:23",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:23",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:23",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:23",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:23",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:23",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:23",
+      "kavlan-2": "2001:660:4406:581:9:2:0:23",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:23",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:23",
+      "kavlan-3": "2001:660:4406:582:9:2:0:23",
+      "kavlan-4": "2001:660:4406:590:9:2:0:23",
+      "kavlan-5": "2001:660:4406:591:9:2:0:23",
+      "kavlan-6": "2001:660:4406:592:9:2:0:23",
+      "kavlan-7": "2001:660:4406:593:9:2:0:23",
+      "kavlan-8": "2001:660:4406:594:9:2:0:23",
+      "kavlan-9": "2001:660:4406:595:9:2:0:23"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::23",
-      "kavlan-11": "2001:660:4406:1a0:509:3::23",
-      "kavlan-12": "2001:660:4406:2a0:509:3::23",
-      "kavlan-13": "2001:660:4406:4a0:509:3::23",
-      "kavlan-14": "2001:660:4406:5a0:509:3::23",
-      "kavlan-16": "2001:660:4406:7a0:509:3::23",
-      "kavlan-18": "2001:660:4406:8a0:509:3::23",
-      "kavlan-2": "2001:660:4406:581:9:3::23",
-      "kavlan-20": "2001:660:4406:3a0:509:3::23",
-      "kavlan-21": "2001:660:4406:6a0:509:3::23",
-      "kavlan-3": "2001:660:4406:582:9:3::23",
-      "kavlan-4": "2001:660:4406:590:9:3::23",
-      "kavlan-5": "2001:660:4406:591:9:3::23",
-      "kavlan-6": "2001:660:4406:592:9:3::23",
-      "kavlan-7": "2001:660:4406:593:9:3::23",
-      "kavlan-8": "2001:660:4406:594:9:3::23",
-      "kavlan-9": "2001:660:4406:595:9:3::23"
+      "kavlan-1": "2001:660:4406:580:9:3:0:23",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:23",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:23",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:23",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:23",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:23",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:23",
+      "kavlan-2": "2001:660:4406:581:9:3:0:23",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:23",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:23",
+      "kavlan-3": "2001:660:4406:582:9:3:0:23",
+      "kavlan-4": "2001:660:4406:590:9:3:0:23",
+      "kavlan-5": "2001:660:4406:591:9:3:0:23",
+      "kavlan-6": "2001:660:4406:592:9:3:0:23",
+      "kavlan-7": "2001:660:4406:593:9:3:0:23",
+      "kavlan-8": "2001:660:4406:594:9:3:0:23",
+      "kavlan-9": "2001:660:4406:595:9:3:0:23"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::23",
-      "kavlan-11": "2001:660:4406:1a0:509:4::23",
-      "kavlan-12": "2001:660:4406:2a0:509:4::23",
-      "kavlan-13": "2001:660:4406:4a0:509:4::23",
-      "kavlan-14": "2001:660:4406:5a0:509:4::23",
-      "kavlan-16": "2001:660:4406:7a0:509:4::23",
-      "kavlan-18": "2001:660:4406:8a0:509:4::23",
-      "kavlan-2": "2001:660:4406:581:9:4::23",
-      "kavlan-20": "2001:660:4406:3a0:509:4::23",
-      "kavlan-21": "2001:660:4406:6a0:509:4::23",
-      "kavlan-3": "2001:660:4406:582:9:4::23",
-      "kavlan-4": "2001:660:4406:590:9:4::23",
-      "kavlan-5": "2001:660:4406:591:9:4::23",
-      "kavlan-6": "2001:660:4406:592:9:4::23",
-      "kavlan-7": "2001:660:4406:593:9:4::23",
-      "kavlan-8": "2001:660:4406:594:9:4::23",
-      "kavlan-9": "2001:660:4406:595:9:4::23"
+      "kavlan-1": "2001:660:4406:580:9:4:0:23",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:23",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:23",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:23",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:23",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:23",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:23",
+      "kavlan-2": "2001:660:4406:581:9:4:0:23",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:23",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:23",
+      "kavlan-3": "2001:660:4406:582:9:4:0:23",
+      "kavlan-4": "2001:660:4406:590:9:4:0:23",
+      "kavlan-5": "2001:660:4406:591:9:4:0:23",
+      "kavlan-6": "2001:660:4406:592:9:4:0:23",
+      "kavlan-7": "2001:660:4406:593:9:4:0:23",
+      "kavlan-8": "2001:660:4406:594:9:4:0:23",
+      "kavlan-9": "2001:660:4406:595:9:4:0:23"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.35",
-      "ip6": "2001:660:4406:500:9:0::23",
+      "ip6": "2001:660:4406:500:9::23",
       "kavlan": true,
       "mac": "24:6e:96:03:11:60",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.135",
-      "ip6": "2001:660:4406:500:9:1::23",
+      "ip6": "2001:660:4406:500:9:1:0:23",
       "kavlan": true,
       "mac": "24:6e:96:03:11:62",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.235",
-      "ip6": "2001:660:4406:500:9:2::23",
+      "ip6": "2001:660:4406:500:9:2:0:23",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4a:d0",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.135",
-      "ip6": "2001:660:4406:500:9:3::23",
+      "ip6": "2001:660:4406:500:9:3:0:23",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4a:d2",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.235",
-      "ip6": "2001:660:4406:500:9:4::23",
+      "ip6": "2001:660:4406:500:9:4:0:23",
       "kavlan": true,
       "mac": "24:6e:96:03:11:64",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-36.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-36.json
index 94dbac70413fca323c9350f6a925c77257bd1c20..3989f259183f0c29822b39796c607bdeb7e7d283 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-36.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-36.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::24",
-      "kavlan-11": "2001:660:4406:1a0:509:0::24",
-      "kavlan-12": "2001:660:4406:2a0:509:0::24",
-      "kavlan-13": "2001:660:4406:4a0:509:0::24",
-      "kavlan-14": "2001:660:4406:5a0:509:0::24",
-      "kavlan-16": "2001:660:4406:7a0:509:0::24",
-      "kavlan-18": "2001:660:4406:8a0:509:0::24",
-      "kavlan-2": "2001:660:4406:581:9:0::24",
-      "kavlan-20": "2001:660:4406:3a0:509:0::24",
-      "kavlan-21": "2001:660:4406:6a0:509:0::24",
-      "kavlan-3": "2001:660:4406:582:9:0::24",
-      "kavlan-4": "2001:660:4406:590:9:0::24",
-      "kavlan-5": "2001:660:4406:591:9:0::24",
-      "kavlan-6": "2001:660:4406:592:9:0::24",
-      "kavlan-7": "2001:660:4406:593:9:0::24",
-      "kavlan-8": "2001:660:4406:594:9:0::24",
-      "kavlan-9": "2001:660:4406:595:9:0::24"
+      "kavlan-1": "2001:660:4406:580:9::24",
+      "kavlan-11": "2001:660:4406:1a0:509::24",
+      "kavlan-12": "2001:660:4406:2a0:509::24",
+      "kavlan-13": "2001:660:4406:4a0:509::24",
+      "kavlan-14": "2001:660:4406:5a0:509::24",
+      "kavlan-16": "2001:660:4406:7a0:509::24",
+      "kavlan-18": "2001:660:4406:8a0:509::24",
+      "kavlan-2": "2001:660:4406:581:9::24",
+      "kavlan-20": "2001:660:4406:3a0:509::24",
+      "kavlan-21": "2001:660:4406:6a0:509::24",
+      "kavlan-3": "2001:660:4406:582:9::24",
+      "kavlan-4": "2001:660:4406:590:9::24",
+      "kavlan-5": "2001:660:4406:591:9::24",
+      "kavlan-6": "2001:660:4406:592:9::24",
+      "kavlan-7": "2001:660:4406:593:9::24",
+      "kavlan-8": "2001:660:4406:594:9::24",
+      "kavlan-9": "2001:660:4406:595:9::24"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::24",
-      "kavlan-11": "2001:660:4406:1a0:509:1::24",
-      "kavlan-12": "2001:660:4406:2a0:509:1::24",
-      "kavlan-13": "2001:660:4406:4a0:509:1::24",
-      "kavlan-14": "2001:660:4406:5a0:509:1::24",
-      "kavlan-16": "2001:660:4406:7a0:509:1::24",
-      "kavlan-18": "2001:660:4406:8a0:509:1::24",
-      "kavlan-2": "2001:660:4406:581:9:1::24",
-      "kavlan-20": "2001:660:4406:3a0:509:1::24",
-      "kavlan-21": "2001:660:4406:6a0:509:1::24",
-      "kavlan-3": "2001:660:4406:582:9:1::24",
-      "kavlan-4": "2001:660:4406:590:9:1::24",
-      "kavlan-5": "2001:660:4406:591:9:1::24",
-      "kavlan-6": "2001:660:4406:592:9:1::24",
-      "kavlan-7": "2001:660:4406:593:9:1::24",
-      "kavlan-8": "2001:660:4406:594:9:1::24",
-      "kavlan-9": "2001:660:4406:595:9:1::24"
+      "kavlan-1": "2001:660:4406:580:9:1:0:24",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:24",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:24",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:24",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:24",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:24",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:24",
+      "kavlan-2": "2001:660:4406:581:9:1:0:24",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:24",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:24",
+      "kavlan-3": "2001:660:4406:582:9:1:0:24",
+      "kavlan-4": "2001:660:4406:590:9:1:0:24",
+      "kavlan-5": "2001:660:4406:591:9:1:0:24",
+      "kavlan-6": "2001:660:4406:592:9:1:0:24",
+      "kavlan-7": "2001:660:4406:593:9:1:0:24",
+      "kavlan-8": "2001:660:4406:594:9:1:0:24",
+      "kavlan-9": "2001:660:4406:595:9:1:0:24"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::24",
-      "kavlan-11": "2001:660:4406:1a0:509:2::24",
-      "kavlan-12": "2001:660:4406:2a0:509:2::24",
-      "kavlan-13": "2001:660:4406:4a0:509:2::24",
-      "kavlan-14": "2001:660:4406:5a0:509:2::24",
-      "kavlan-16": "2001:660:4406:7a0:509:2::24",
-      "kavlan-18": "2001:660:4406:8a0:509:2::24",
-      "kavlan-2": "2001:660:4406:581:9:2::24",
-      "kavlan-20": "2001:660:4406:3a0:509:2::24",
-      "kavlan-21": "2001:660:4406:6a0:509:2::24",
-      "kavlan-3": "2001:660:4406:582:9:2::24",
-      "kavlan-4": "2001:660:4406:590:9:2::24",
-      "kavlan-5": "2001:660:4406:591:9:2::24",
-      "kavlan-6": "2001:660:4406:592:9:2::24",
-      "kavlan-7": "2001:660:4406:593:9:2::24",
-      "kavlan-8": "2001:660:4406:594:9:2::24",
-      "kavlan-9": "2001:660:4406:595:9:2::24"
+      "kavlan-1": "2001:660:4406:580:9:2:0:24",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:24",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:24",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:24",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:24",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:24",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:24",
+      "kavlan-2": "2001:660:4406:581:9:2:0:24",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:24",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:24",
+      "kavlan-3": "2001:660:4406:582:9:2:0:24",
+      "kavlan-4": "2001:660:4406:590:9:2:0:24",
+      "kavlan-5": "2001:660:4406:591:9:2:0:24",
+      "kavlan-6": "2001:660:4406:592:9:2:0:24",
+      "kavlan-7": "2001:660:4406:593:9:2:0:24",
+      "kavlan-8": "2001:660:4406:594:9:2:0:24",
+      "kavlan-9": "2001:660:4406:595:9:2:0:24"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::24",
-      "kavlan-11": "2001:660:4406:1a0:509:3::24",
-      "kavlan-12": "2001:660:4406:2a0:509:3::24",
-      "kavlan-13": "2001:660:4406:4a0:509:3::24",
-      "kavlan-14": "2001:660:4406:5a0:509:3::24",
-      "kavlan-16": "2001:660:4406:7a0:509:3::24",
-      "kavlan-18": "2001:660:4406:8a0:509:3::24",
-      "kavlan-2": "2001:660:4406:581:9:3::24",
-      "kavlan-20": "2001:660:4406:3a0:509:3::24",
-      "kavlan-21": "2001:660:4406:6a0:509:3::24",
-      "kavlan-3": "2001:660:4406:582:9:3::24",
-      "kavlan-4": "2001:660:4406:590:9:3::24",
-      "kavlan-5": "2001:660:4406:591:9:3::24",
-      "kavlan-6": "2001:660:4406:592:9:3::24",
-      "kavlan-7": "2001:660:4406:593:9:3::24",
-      "kavlan-8": "2001:660:4406:594:9:3::24",
-      "kavlan-9": "2001:660:4406:595:9:3::24"
+      "kavlan-1": "2001:660:4406:580:9:3:0:24",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:24",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:24",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:24",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:24",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:24",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:24",
+      "kavlan-2": "2001:660:4406:581:9:3:0:24",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:24",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:24",
+      "kavlan-3": "2001:660:4406:582:9:3:0:24",
+      "kavlan-4": "2001:660:4406:590:9:3:0:24",
+      "kavlan-5": "2001:660:4406:591:9:3:0:24",
+      "kavlan-6": "2001:660:4406:592:9:3:0:24",
+      "kavlan-7": "2001:660:4406:593:9:3:0:24",
+      "kavlan-8": "2001:660:4406:594:9:3:0:24",
+      "kavlan-9": "2001:660:4406:595:9:3:0:24"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::24",
-      "kavlan-11": "2001:660:4406:1a0:509:4::24",
-      "kavlan-12": "2001:660:4406:2a0:509:4::24",
-      "kavlan-13": "2001:660:4406:4a0:509:4::24",
-      "kavlan-14": "2001:660:4406:5a0:509:4::24",
-      "kavlan-16": "2001:660:4406:7a0:509:4::24",
-      "kavlan-18": "2001:660:4406:8a0:509:4::24",
-      "kavlan-2": "2001:660:4406:581:9:4::24",
-      "kavlan-20": "2001:660:4406:3a0:509:4::24",
-      "kavlan-21": "2001:660:4406:6a0:509:4::24",
-      "kavlan-3": "2001:660:4406:582:9:4::24",
-      "kavlan-4": "2001:660:4406:590:9:4::24",
-      "kavlan-5": "2001:660:4406:591:9:4::24",
-      "kavlan-6": "2001:660:4406:592:9:4::24",
-      "kavlan-7": "2001:660:4406:593:9:4::24",
-      "kavlan-8": "2001:660:4406:594:9:4::24",
-      "kavlan-9": "2001:660:4406:595:9:4::24"
+      "kavlan-1": "2001:660:4406:580:9:4:0:24",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:24",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:24",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:24",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:24",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:24",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:24",
+      "kavlan-2": "2001:660:4406:581:9:4:0:24",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:24",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:24",
+      "kavlan-3": "2001:660:4406:582:9:4:0:24",
+      "kavlan-4": "2001:660:4406:590:9:4:0:24",
+      "kavlan-5": "2001:660:4406:591:9:4:0:24",
+      "kavlan-6": "2001:660:4406:592:9:4:0:24",
+      "kavlan-7": "2001:660:4406:593:9:4:0:24",
+      "kavlan-8": "2001:660:4406:594:9:4:0:24",
+      "kavlan-9": "2001:660:4406:595:9:4:0:24"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.36",
-      "ip6": "2001:660:4406:500:9:0::24",
+      "ip6": "2001:660:4406:500:9::24",
       "kavlan": true,
       "mac": "24:6e:96:03:11:70",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.136",
-      "ip6": "2001:660:4406:500:9:1::24",
+      "ip6": "2001:660:4406:500:9:1:0:24",
       "kavlan": true,
       "mac": "24:6e:96:03:11:72",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.236",
-      "ip6": "2001:660:4406:500:9:2::24",
+      "ip6": "2001:660:4406:500:9:2:0:24",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:c0",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.136",
-      "ip6": "2001:660:4406:500:9:3::24",
+      "ip6": "2001:660:4406:500:9:3:0:24",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:c2",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.236",
-      "ip6": "2001:660:4406:500:9:4::24",
+      "ip6": "2001:660:4406:500:9:4:0:24",
       "kavlan": true,
       "mac": "24:6e:96:03:11:74",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-37.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-37.json
index e6961f882607874a6181f8a154abd7901ceacb38..b5968cc9770a4af4bc2667df87da0db67bd3632c 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-37.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-37.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::25",
-      "kavlan-11": "2001:660:4406:1a0:509:0::25",
-      "kavlan-12": "2001:660:4406:2a0:509:0::25",
-      "kavlan-13": "2001:660:4406:4a0:509:0::25",
-      "kavlan-14": "2001:660:4406:5a0:509:0::25",
-      "kavlan-16": "2001:660:4406:7a0:509:0::25",
-      "kavlan-18": "2001:660:4406:8a0:509:0::25",
-      "kavlan-2": "2001:660:4406:581:9:0::25",
-      "kavlan-20": "2001:660:4406:3a0:509:0::25",
-      "kavlan-21": "2001:660:4406:6a0:509:0::25",
-      "kavlan-3": "2001:660:4406:582:9:0::25",
-      "kavlan-4": "2001:660:4406:590:9:0::25",
-      "kavlan-5": "2001:660:4406:591:9:0::25",
-      "kavlan-6": "2001:660:4406:592:9:0::25",
-      "kavlan-7": "2001:660:4406:593:9:0::25",
-      "kavlan-8": "2001:660:4406:594:9:0::25",
-      "kavlan-9": "2001:660:4406:595:9:0::25"
+      "kavlan-1": "2001:660:4406:580:9::25",
+      "kavlan-11": "2001:660:4406:1a0:509::25",
+      "kavlan-12": "2001:660:4406:2a0:509::25",
+      "kavlan-13": "2001:660:4406:4a0:509::25",
+      "kavlan-14": "2001:660:4406:5a0:509::25",
+      "kavlan-16": "2001:660:4406:7a0:509::25",
+      "kavlan-18": "2001:660:4406:8a0:509::25",
+      "kavlan-2": "2001:660:4406:581:9::25",
+      "kavlan-20": "2001:660:4406:3a0:509::25",
+      "kavlan-21": "2001:660:4406:6a0:509::25",
+      "kavlan-3": "2001:660:4406:582:9::25",
+      "kavlan-4": "2001:660:4406:590:9::25",
+      "kavlan-5": "2001:660:4406:591:9::25",
+      "kavlan-6": "2001:660:4406:592:9::25",
+      "kavlan-7": "2001:660:4406:593:9::25",
+      "kavlan-8": "2001:660:4406:594:9::25",
+      "kavlan-9": "2001:660:4406:595:9::25"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::25",
-      "kavlan-11": "2001:660:4406:1a0:509:1::25",
-      "kavlan-12": "2001:660:4406:2a0:509:1::25",
-      "kavlan-13": "2001:660:4406:4a0:509:1::25",
-      "kavlan-14": "2001:660:4406:5a0:509:1::25",
-      "kavlan-16": "2001:660:4406:7a0:509:1::25",
-      "kavlan-18": "2001:660:4406:8a0:509:1::25",
-      "kavlan-2": "2001:660:4406:581:9:1::25",
-      "kavlan-20": "2001:660:4406:3a0:509:1::25",
-      "kavlan-21": "2001:660:4406:6a0:509:1::25",
-      "kavlan-3": "2001:660:4406:582:9:1::25",
-      "kavlan-4": "2001:660:4406:590:9:1::25",
-      "kavlan-5": "2001:660:4406:591:9:1::25",
-      "kavlan-6": "2001:660:4406:592:9:1::25",
-      "kavlan-7": "2001:660:4406:593:9:1::25",
-      "kavlan-8": "2001:660:4406:594:9:1::25",
-      "kavlan-9": "2001:660:4406:595:9:1::25"
+      "kavlan-1": "2001:660:4406:580:9:1:0:25",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:25",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:25",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:25",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:25",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:25",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:25",
+      "kavlan-2": "2001:660:4406:581:9:1:0:25",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:25",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:25",
+      "kavlan-3": "2001:660:4406:582:9:1:0:25",
+      "kavlan-4": "2001:660:4406:590:9:1:0:25",
+      "kavlan-5": "2001:660:4406:591:9:1:0:25",
+      "kavlan-6": "2001:660:4406:592:9:1:0:25",
+      "kavlan-7": "2001:660:4406:593:9:1:0:25",
+      "kavlan-8": "2001:660:4406:594:9:1:0:25",
+      "kavlan-9": "2001:660:4406:595:9:1:0:25"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::25",
-      "kavlan-11": "2001:660:4406:1a0:509:2::25",
-      "kavlan-12": "2001:660:4406:2a0:509:2::25",
-      "kavlan-13": "2001:660:4406:4a0:509:2::25",
-      "kavlan-14": "2001:660:4406:5a0:509:2::25",
-      "kavlan-16": "2001:660:4406:7a0:509:2::25",
-      "kavlan-18": "2001:660:4406:8a0:509:2::25",
-      "kavlan-2": "2001:660:4406:581:9:2::25",
-      "kavlan-20": "2001:660:4406:3a0:509:2::25",
-      "kavlan-21": "2001:660:4406:6a0:509:2::25",
-      "kavlan-3": "2001:660:4406:582:9:2::25",
-      "kavlan-4": "2001:660:4406:590:9:2::25",
-      "kavlan-5": "2001:660:4406:591:9:2::25",
-      "kavlan-6": "2001:660:4406:592:9:2::25",
-      "kavlan-7": "2001:660:4406:593:9:2::25",
-      "kavlan-8": "2001:660:4406:594:9:2::25",
-      "kavlan-9": "2001:660:4406:595:9:2::25"
+      "kavlan-1": "2001:660:4406:580:9:2:0:25",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:25",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:25",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:25",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:25",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:25",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:25",
+      "kavlan-2": "2001:660:4406:581:9:2:0:25",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:25",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:25",
+      "kavlan-3": "2001:660:4406:582:9:2:0:25",
+      "kavlan-4": "2001:660:4406:590:9:2:0:25",
+      "kavlan-5": "2001:660:4406:591:9:2:0:25",
+      "kavlan-6": "2001:660:4406:592:9:2:0:25",
+      "kavlan-7": "2001:660:4406:593:9:2:0:25",
+      "kavlan-8": "2001:660:4406:594:9:2:0:25",
+      "kavlan-9": "2001:660:4406:595:9:2:0:25"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::25",
-      "kavlan-11": "2001:660:4406:1a0:509:3::25",
-      "kavlan-12": "2001:660:4406:2a0:509:3::25",
-      "kavlan-13": "2001:660:4406:4a0:509:3::25",
-      "kavlan-14": "2001:660:4406:5a0:509:3::25",
-      "kavlan-16": "2001:660:4406:7a0:509:3::25",
-      "kavlan-18": "2001:660:4406:8a0:509:3::25",
-      "kavlan-2": "2001:660:4406:581:9:3::25",
-      "kavlan-20": "2001:660:4406:3a0:509:3::25",
-      "kavlan-21": "2001:660:4406:6a0:509:3::25",
-      "kavlan-3": "2001:660:4406:582:9:3::25",
-      "kavlan-4": "2001:660:4406:590:9:3::25",
-      "kavlan-5": "2001:660:4406:591:9:3::25",
-      "kavlan-6": "2001:660:4406:592:9:3::25",
-      "kavlan-7": "2001:660:4406:593:9:3::25",
-      "kavlan-8": "2001:660:4406:594:9:3::25",
-      "kavlan-9": "2001:660:4406:595:9:3::25"
+      "kavlan-1": "2001:660:4406:580:9:3:0:25",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:25",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:25",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:25",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:25",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:25",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:25",
+      "kavlan-2": "2001:660:4406:581:9:3:0:25",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:25",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:25",
+      "kavlan-3": "2001:660:4406:582:9:3:0:25",
+      "kavlan-4": "2001:660:4406:590:9:3:0:25",
+      "kavlan-5": "2001:660:4406:591:9:3:0:25",
+      "kavlan-6": "2001:660:4406:592:9:3:0:25",
+      "kavlan-7": "2001:660:4406:593:9:3:0:25",
+      "kavlan-8": "2001:660:4406:594:9:3:0:25",
+      "kavlan-9": "2001:660:4406:595:9:3:0:25"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::25",
-      "kavlan-11": "2001:660:4406:1a0:509:4::25",
-      "kavlan-12": "2001:660:4406:2a0:509:4::25",
-      "kavlan-13": "2001:660:4406:4a0:509:4::25",
-      "kavlan-14": "2001:660:4406:5a0:509:4::25",
-      "kavlan-16": "2001:660:4406:7a0:509:4::25",
-      "kavlan-18": "2001:660:4406:8a0:509:4::25",
-      "kavlan-2": "2001:660:4406:581:9:4::25",
-      "kavlan-20": "2001:660:4406:3a0:509:4::25",
-      "kavlan-21": "2001:660:4406:6a0:509:4::25",
-      "kavlan-3": "2001:660:4406:582:9:4::25",
-      "kavlan-4": "2001:660:4406:590:9:4::25",
-      "kavlan-5": "2001:660:4406:591:9:4::25",
-      "kavlan-6": "2001:660:4406:592:9:4::25",
-      "kavlan-7": "2001:660:4406:593:9:4::25",
-      "kavlan-8": "2001:660:4406:594:9:4::25",
-      "kavlan-9": "2001:660:4406:595:9:4::25"
+      "kavlan-1": "2001:660:4406:580:9:4:0:25",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:25",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:25",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:25",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:25",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:25",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:25",
+      "kavlan-2": "2001:660:4406:581:9:4:0:25",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:25",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:25",
+      "kavlan-3": "2001:660:4406:582:9:4:0:25",
+      "kavlan-4": "2001:660:4406:590:9:4:0:25",
+      "kavlan-5": "2001:660:4406:591:9:4:0:25",
+      "kavlan-6": "2001:660:4406:592:9:4:0:25",
+      "kavlan-7": "2001:660:4406:593:9:4:0:25",
+      "kavlan-8": "2001:660:4406:594:9:4:0:25",
+      "kavlan-9": "2001:660:4406:595:9:4:0:25"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.37",
-      "ip6": "2001:660:4406:500:9:0::25",
+      "ip6": "2001:660:4406:500:9::25",
       "kavlan": true,
       "mac": "24:6e:96:03:23:28",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.137",
-      "ip6": "2001:660:4406:500:9:1::25",
+      "ip6": "2001:660:4406:500:9:1:0:25",
       "kavlan": true,
       "mac": "24:6e:96:03:23:2a",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.237",
-      "ip6": "2001:660:4406:500:9:2::25",
+      "ip6": "2001:660:4406:500:9:2:0:25",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:60",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.137",
-      "ip6": "2001:660:4406:500:9:3::25",
+      "ip6": "2001:660:4406:500:9:3:0:25",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:62",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.237",
-      "ip6": "2001:660:4406:500:9:4::25",
+      "ip6": "2001:660:4406:500:9:4:0:25",
       "kavlan": true,
       "mac": "24:6e:96:03:23:2c",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-38.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-38.json
index 416a0cd0369d762205ec61d36a85c412755ce853..6013ded00ccb3b2c97f03441dfcda92985919138 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-38.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-38.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::26",
-      "kavlan-11": "2001:660:4406:1a0:509:0::26",
-      "kavlan-12": "2001:660:4406:2a0:509:0::26",
-      "kavlan-13": "2001:660:4406:4a0:509:0::26",
-      "kavlan-14": "2001:660:4406:5a0:509:0::26",
-      "kavlan-16": "2001:660:4406:7a0:509:0::26",
-      "kavlan-18": "2001:660:4406:8a0:509:0::26",
-      "kavlan-2": "2001:660:4406:581:9:0::26",
-      "kavlan-20": "2001:660:4406:3a0:509:0::26",
-      "kavlan-21": "2001:660:4406:6a0:509:0::26",
-      "kavlan-3": "2001:660:4406:582:9:0::26",
-      "kavlan-4": "2001:660:4406:590:9:0::26",
-      "kavlan-5": "2001:660:4406:591:9:0::26",
-      "kavlan-6": "2001:660:4406:592:9:0::26",
-      "kavlan-7": "2001:660:4406:593:9:0::26",
-      "kavlan-8": "2001:660:4406:594:9:0::26",
-      "kavlan-9": "2001:660:4406:595:9:0::26"
+      "kavlan-1": "2001:660:4406:580:9::26",
+      "kavlan-11": "2001:660:4406:1a0:509::26",
+      "kavlan-12": "2001:660:4406:2a0:509::26",
+      "kavlan-13": "2001:660:4406:4a0:509::26",
+      "kavlan-14": "2001:660:4406:5a0:509::26",
+      "kavlan-16": "2001:660:4406:7a0:509::26",
+      "kavlan-18": "2001:660:4406:8a0:509::26",
+      "kavlan-2": "2001:660:4406:581:9::26",
+      "kavlan-20": "2001:660:4406:3a0:509::26",
+      "kavlan-21": "2001:660:4406:6a0:509::26",
+      "kavlan-3": "2001:660:4406:582:9::26",
+      "kavlan-4": "2001:660:4406:590:9::26",
+      "kavlan-5": "2001:660:4406:591:9::26",
+      "kavlan-6": "2001:660:4406:592:9::26",
+      "kavlan-7": "2001:660:4406:593:9::26",
+      "kavlan-8": "2001:660:4406:594:9::26",
+      "kavlan-9": "2001:660:4406:595:9::26"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::26",
-      "kavlan-11": "2001:660:4406:1a0:509:1::26",
-      "kavlan-12": "2001:660:4406:2a0:509:1::26",
-      "kavlan-13": "2001:660:4406:4a0:509:1::26",
-      "kavlan-14": "2001:660:4406:5a0:509:1::26",
-      "kavlan-16": "2001:660:4406:7a0:509:1::26",
-      "kavlan-18": "2001:660:4406:8a0:509:1::26",
-      "kavlan-2": "2001:660:4406:581:9:1::26",
-      "kavlan-20": "2001:660:4406:3a0:509:1::26",
-      "kavlan-21": "2001:660:4406:6a0:509:1::26",
-      "kavlan-3": "2001:660:4406:582:9:1::26",
-      "kavlan-4": "2001:660:4406:590:9:1::26",
-      "kavlan-5": "2001:660:4406:591:9:1::26",
-      "kavlan-6": "2001:660:4406:592:9:1::26",
-      "kavlan-7": "2001:660:4406:593:9:1::26",
-      "kavlan-8": "2001:660:4406:594:9:1::26",
-      "kavlan-9": "2001:660:4406:595:9:1::26"
+      "kavlan-1": "2001:660:4406:580:9:1:0:26",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:26",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:26",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:26",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:26",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:26",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:26",
+      "kavlan-2": "2001:660:4406:581:9:1:0:26",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:26",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:26",
+      "kavlan-3": "2001:660:4406:582:9:1:0:26",
+      "kavlan-4": "2001:660:4406:590:9:1:0:26",
+      "kavlan-5": "2001:660:4406:591:9:1:0:26",
+      "kavlan-6": "2001:660:4406:592:9:1:0:26",
+      "kavlan-7": "2001:660:4406:593:9:1:0:26",
+      "kavlan-8": "2001:660:4406:594:9:1:0:26",
+      "kavlan-9": "2001:660:4406:595:9:1:0:26"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::26",
-      "kavlan-11": "2001:660:4406:1a0:509:2::26",
-      "kavlan-12": "2001:660:4406:2a0:509:2::26",
-      "kavlan-13": "2001:660:4406:4a0:509:2::26",
-      "kavlan-14": "2001:660:4406:5a0:509:2::26",
-      "kavlan-16": "2001:660:4406:7a0:509:2::26",
-      "kavlan-18": "2001:660:4406:8a0:509:2::26",
-      "kavlan-2": "2001:660:4406:581:9:2::26",
-      "kavlan-20": "2001:660:4406:3a0:509:2::26",
-      "kavlan-21": "2001:660:4406:6a0:509:2::26",
-      "kavlan-3": "2001:660:4406:582:9:2::26",
-      "kavlan-4": "2001:660:4406:590:9:2::26",
-      "kavlan-5": "2001:660:4406:591:9:2::26",
-      "kavlan-6": "2001:660:4406:592:9:2::26",
-      "kavlan-7": "2001:660:4406:593:9:2::26",
-      "kavlan-8": "2001:660:4406:594:9:2::26",
-      "kavlan-9": "2001:660:4406:595:9:2::26"
+      "kavlan-1": "2001:660:4406:580:9:2:0:26",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:26",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:26",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:26",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:26",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:26",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:26",
+      "kavlan-2": "2001:660:4406:581:9:2:0:26",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:26",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:26",
+      "kavlan-3": "2001:660:4406:582:9:2:0:26",
+      "kavlan-4": "2001:660:4406:590:9:2:0:26",
+      "kavlan-5": "2001:660:4406:591:9:2:0:26",
+      "kavlan-6": "2001:660:4406:592:9:2:0:26",
+      "kavlan-7": "2001:660:4406:593:9:2:0:26",
+      "kavlan-8": "2001:660:4406:594:9:2:0:26",
+      "kavlan-9": "2001:660:4406:595:9:2:0:26"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::26",
-      "kavlan-11": "2001:660:4406:1a0:509:3::26",
-      "kavlan-12": "2001:660:4406:2a0:509:3::26",
-      "kavlan-13": "2001:660:4406:4a0:509:3::26",
-      "kavlan-14": "2001:660:4406:5a0:509:3::26",
-      "kavlan-16": "2001:660:4406:7a0:509:3::26",
-      "kavlan-18": "2001:660:4406:8a0:509:3::26",
-      "kavlan-2": "2001:660:4406:581:9:3::26",
-      "kavlan-20": "2001:660:4406:3a0:509:3::26",
-      "kavlan-21": "2001:660:4406:6a0:509:3::26",
-      "kavlan-3": "2001:660:4406:582:9:3::26",
-      "kavlan-4": "2001:660:4406:590:9:3::26",
-      "kavlan-5": "2001:660:4406:591:9:3::26",
-      "kavlan-6": "2001:660:4406:592:9:3::26",
-      "kavlan-7": "2001:660:4406:593:9:3::26",
-      "kavlan-8": "2001:660:4406:594:9:3::26",
-      "kavlan-9": "2001:660:4406:595:9:3::26"
+      "kavlan-1": "2001:660:4406:580:9:3:0:26",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:26",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:26",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:26",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:26",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:26",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:26",
+      "kavlan-2": "2001:660:4406:581:9:3:0:26",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:26",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:26",
+      "kavlan-3": "2001:660:4406:582:9:3:0:26",
+      "kavlan-4": "2001:660:4406:590:9:3:0:26",
+      "kavlan-5": "2001:660:4406:591:9:3:0:26",
+      "kavlan-6": "2001:660:4406:592:9:3:0:26",
+      "kavlan-7": "2001:660:4406:593:9:3:0:26",
+      "kavlan-8": "2001:660:4406:594:9:3:0:26",
+      "kavlan-9": "2001:660:4406:595:9:3:0:26"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::26",
-      "kavlan-11": "2001:660:4406:1a0:509:4::26",
-      "kavlan-12": "2001:660:4406:2a0:509:4::26",
-      "kavlan-13": "2001:660:4406:4a0:509:4::26",
-      "kavlan-14": "2001:660:4406:5a0:509:4::26",
-      "kavlan-16": "2001:660:4406:7a0:509:4::26",
-      "kavlan-18": "2001:660:4406:8a0:509:4::26",
-      "kavlan-2": "2001:660:4406:581:9:4::26",
-      "kavlan-20": "2001:660:4406:3a0:509:4::26",
-      "kavlan-21": "2001:660:4406:6a0:509:4::26",
-      "kavlan-3": "2001:660:4406:582:9:4::26",
-      "kavlan-4": "2001:660:4406:590:9:4::26",
-      "kavlan-5": "2001:660:4406:591:9:4::26",
-      "kavlan-6": "2001:660:4406:592:9:4::26",
-      "kavlan-7": "2001:660:4406:593:9:4::26",
-      "kavlan-8": "2001:660:4406:594:9:4::26",
-      "kavlan-9": "2001:660:4406:595:9:4::26"
+      "kavlan-1": "2001:660:4406:580:9:4:0:26",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:26",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:26",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:26",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:26",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:26",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:26",
+      "kavlan-2": "2001:660:4406:581:9:4:0:26",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:26",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:26",
+      "kavlan-3": "2001:660:4406:582:9:4:0:26",
+      "kavlan-4": "2001:660:4406:590:9:4:0:26",
+      "kavlan-5": "2001:660:4406:591:9:4:0:26",
+      "kavlan-6": "2001:660:4406:592:9:4:0:26",
+      "kavlan-7": "2001:660:4406:593:9:4:0:26",
+      "kavlan-8": "2001:660:4406:594:9:4:0:26",
+      "kavlan-9": "2001:660:4406:595:9:4:0:26"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.38",
-      "ip6": "2001:660:4406:500:9:0::26",
+      "ip6": "2001:660:4406:500:9::26",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:00",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.138",
-      "ip6": "2001:660:4406:500:9:1::26",
+      "ip6": "2001:660:4406:500:9:1:0:26",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:02",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.238",
-      "ip6": "2001:660:4406:500:9:2::26",
+      "ip6": "2001:660:4406:500:9:2:0:26",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:74",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.138",
-      "ip6": "2001:660:4406:500:9:3::26",
+      "ip6": "2001:660:4406:500:9:3:0:26",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:76",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.238",
-      "ip6": "2001:660:4406:500:9:4::26",
+      "ip6": "2001:660:4406:500:9:4:0:26",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:04",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-39.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-39.json
index 17e7f55c96bceaeb3ac910768cdcd1ebb2c65677..38d8d34f2a2f9a2e1a120e057c1b7a77f9ecbe23 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-39.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-39.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::27",
-      "kavlan-11": "2001:660:4406:1a0:509:0::27",
-      "kavlan-12": "2001:660:4406:2a0:509:0::27",
-      "kavlan-13": "2001:660:4406:4a0:509:0::27",
-      "kavlan-14": "2001:660:4406:5a0:509:0::27",
-      "kavlan-16": "2001:660:4406:7a0:509:0::27",
-      "kavlan-18": "2001:660:4406:8a0:509:0::27",
-      "kavlan-2": "2001:660:4406:581:9:0::27",
-      "kavlan-20": "2001:660:4406:3a0:509:0::27",
-      "kavlan-21": "2001:660:4406:6a0:509:0::27",
-      "kavlan-3": "2001:660:4406:582:9:0::27",
-      "kavlan-4": "2001:660:4406:590:9:0::27",
-      "kavlan-5": "2001:660:4406:591:9:0::27",
-      "kavlan-6": "2001:660:4406:592:9:0::27",
-      "kavlan-7": "2001:660:4406:593:9:0::27",
-      "kavlan-8": "2001:660:4406:594:9:0::27",
-      "kavlan-9": "2001:660:4406:595:9:0::27"
+      "kavlan-1": "2001:660:4406:580:9::27",
+      "kavlan-11": "2001:660:4406:1a0:509::27",
+      "kavlan-12": "2001:660:4406:2a0:509::27",
+      "kavlan-13": "2001:660:4406:4a0:509::27",
+      "kavlan-14": "2001:660:4406:5a0:509::27",
+      "kavlan-16": "2001:660:4406:7a0:509::27",
+      "kavlan-18": "2001:660:4406:8a0:509::27",
+      "kavlan-2": "2001:660:4406:581:9::27",
+      "kavlan-20": "2001:660:4406:3a0:509::27",
+      "kavlan-21": "2001:660:4406:6a0:509::27",
+      "kavlan-3": "2001:660:4406:582:9::27",
+      "kavlan-4": "2001:660:4406:590:9::27",
+      "kavlan-5": "2001:660:4406:591:9::27",
+      "kavlan-6": "2001:660:4406:592:9::27",
+      "kavlan-7": "2001:660:4406:593:9::27",
+      "kavlan-8": "2001:660:4406:594:9::27",
+      "kavlan-9": "2001:660:4406:595:9::27"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::27",
-      "kavlan-11": "2001:660:4406:1a0:509:1::27",
-      "kavlan-12": "2001:660:4406:2a0:509:1::27",
-      "kavlan-13": "2001:660:4406:4a0:509:1::27",
-      "kavlan-14": "2001:660:4406:5a0:509:1::27",
-      "kavlan-16": "2001:660:4406:7a0:509:1::27",
-      "kavlan-18": "2001:660:4406:8a0:509:1::27",
-      "kavlan-2": "2001:660:4406:581:9:1::27",
-      "kavlan-20": "2001:660:4406:3a0:509:1::27",
-      "kavlan-21": "2001:660:4406:6a0:509:1::27",
-      "kavlan-3": "2001:660:4406:582:9:1::27",
-      "kavlan-4": "2001:660:4406:590:9:1::27",
-      "kavlan-5": "2001:660:4406:591:9:1::27",
-      "kavlan-6": "2001:660:4406:592:9:1::27",
-      "kavlan-7": "2001:660:4406:593:9:1::27",
-      "kavlan-8": "2001:660:4406:594:9:1::27",
-      "kavlan-9": "2001:660:4406:595:9:1::27"
+      "kavlan-1": "2001:660:4406:580:9:1:0:27",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:27",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:27",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:27",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:27",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:27",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:27",
+      "kavlan-2": "2001:660:4406:581:9:1:0:27",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:27",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:27",
+      "kavlan-3": "2001:660:4406:582:9:1:0:27",
+      "kavlan-4": "2001:660:4406:590:9:1:0:27",
+      "kavlan-5": "2001:660:4406:591:9:1:0:27",
+      "kavlan-6": "2001:660:4406:592:9:1:0:27",
+      "kavlan-7": "2001:660:4406:593:9:1:0:27",
+      "kavlan-8": "2001:660:4406:594:9:1:0:27",
+      "kavlan-9": "2001:660:4406:595:9:1:0:27"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::27",
-      "kavlan-11": "2001:660:4406:1a0:509:2::27",
-      "kavlan-12": "2001:660:4406:2a0:509:2::27",
-      "kavlan-13": "2001:660:4406:4a0:509:2::27",
-      "kavlan-14": "2001:660:4406:5a0:509:2::27",
-      "kavlan-16": "2001:660:4406:7a0:509:2::27",
-      "kavlan-18": "2001:660:4406:8a0:509:2::27",
-      "kavlan-2": "2001:660:4406:581:9:2::27",
-      "kavlan-20": "2001:660:4406:3a0:509:2::27",
-      "kavlan-21": "2001:660:4406:6a0:509:2::27",
-      "kavlan-3": "2001:660:4406:582:9:2::27",
-      "kavlan-4": "2001:660:4406:590:9:2::27",
-      "kavlan-5": "2001:660:4406:591:9:2::27",
-      "kavlan-6": "2001:660:4406:592:9:2::27",
-      "kavlan-7": "2001:660:4406:593:9:2::27",
-      "kavlan-8": "2001:660:4406:594:9:2::27",
-      "kavlan-9": "2001:660:4406:595:9:2::27"
+      "kavlan-1": "2001:660:4406:580:9:2:0:27",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:27",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:27",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:27",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:27",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:27",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:27",
+      "kavlan-2": "2001:660:4406:581:9:2:0:27",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:27",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:27",
+      "kavlan-3": "2001:660:4406:582:9:2:0:27",
+      "kavlan-4": "2001:660:4406:590:9:2:0:27",
+      "kavlan-5": "2001:660:4406:591:9:2:0:27",
+      "kavlan-6": "2001:660:4406:592:9:2:0:27",
+      "kavlan-7": "2001:660:4406:593:9:2:0:27",
+      "kavlan-8": "2001:660:4406:594:9:2:0:27",
+      "kavlan-9": "2001:660:4406:595:9:2:0:27"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::27",
-      "kavlan-11": "2001:660:4406:1a0:509:3::27",
-      "kavlan-12": "2001:660:4406:2a0:509:3::27",
-      "kavlan-13": "2001:660:4406:4a0:509:3::27",
-      "kavlan-14": "2001:660:4406:5a0:509:3::27",
-      "kavlan-16": "2001:660:4406:7a0:509:3::27",
-      "kavlan-18": "2001:660:4406:8a0:509:3::27",
-      "kavlan-2": "2001:660:4406:581:9:3::27",
-      "kavlan-20": "2001:660:4406:3a0:509:3::27",
-      "kavlan-21": "2001:660:4406:6a0:509:3::27",
-      "kavlan-3": "2001:660:4406:582:9:3::27",
-      "kavlan-4": "2001:660:4406:590:9:3::27",
-      "kavlan-5": "2001:660:4406:591:9:3::27",
-      "kavlan-6": "2001:660:4406:592:9:3::27",
-      "kavlan-7": "2001:660:4406:593:9:3::27",
-      "kavlan-8": "2001:660:4406:594:9:3::27",
-      "kavlan-9": "2001:660:4406:595:9:3::27"
+      "kavlan-1": "2001:660:4406:580:9:3:0:27",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:27",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:27",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:27",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:27",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:27",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:27",
+      "kavlan-2": "2001:660:4406:581:9:3:0:27",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:27",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:27",
+      "kavlan-3": "2001:660:4406:582:9:3:0:27",
+      "kavlan-4": "2001:660:4406:590:9:3:0:27",
+      "kavlan-5": "2001:660:4406:591:9:3:0:27",
+      "kavlan-6": "2001:660:4406:592:9:3:0:27",
+      "kavlan-7": "2001:660:4406:593:9:3:0:27",
+      "kavlan-8": "2001:660:4406:594:9:3:0:27",
+      "kavlan-9": "2001:660:4406:595:9:3:0:27"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::27",
-      "kavlan-11": "2001:660:4406:1a0:509:4::27",
-      "kavlan-12": "2001:660:4406:2a0:509:4::27",
-      "kavlan-13": "2001:660:4406:4a0:509:4::27",
-      "kavlan-14": "2001:660:4406:5a0:509:4::27",
-      "kavlan-16": "2001:660:4406:7a0:509:4::27",
-      "kavlan-18": "2001:660:4406:8a0:509:4::27",
-      "kavlan-2": "2001:660:4406:581:9:4::27",
-      "kavlan-20": "2001:660:4406:3a0:509:4::27",
-      "kavlan-21": "2001:660:4406:6a0:509:4::27",
-      "kavlan-3": "2001:660:4406:582:9:4::27",
-      "kavlan-4": "2001:660:4406:590:9:4::27",
-      "kavlan-5": "2001:660:4406:591:9:4::27",
-      "kavlan-6": "2001:660:4406:592:9:4::27",
-      "kavlan-7": "2001:660:4406:593:9:4::27",
-      "kavlan-8": "2001:660:4406:594:9:4::27",
-      "kavlan-9": "2001:660:4406:595:9:4::27"
+      "kavlan-1": "2001:660:4406:580:9:4:0:27",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:27",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:27",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:27",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:27",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:27",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:27",
+      "kavlan-2": "2001:660:4406:581:9:4:0:27",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:27",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:27",
+      "kavlan-3": "2001:660:4406:582:9:4:0:27",
+      "kavlan-4": "2001:660:4406:590:9:4:0:27",
+      "kavlan-5": "2001:660:4406:591:9:4:0:27",
+      "kavlan-6": "2001:660:4406:592:9:4:0:27",
+      "kavlan-7": "2001:660:4406:593:9:4:0:27",
+      "kavlan-8": "2001:660:4406:594:9:4:0:27",
+      "kavlan-9": "2001:660:4406:595:9:4:0:27"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.39",
-      "ip6": "2001:660:4406:500:9:0::27",
+      "ip6": "2001:660:4406:500:9::27",
       "kavlan": true,
       "mac": "24:6e:96:03:09:c0",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.139",
-      "ip6": "2001:660:4406:500:9:1::27",
+      "ip6": "2001:660:4406:500:9:1:0:27",
       "kavlan": true,
       "mac": "24:6e:96:03:09:c2",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.239",
-      "ip6": "2001:660:4406:500:9:2::27",
+      "ip6": "2001:660:4406:500:9:2:0:27",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:08",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.139",
-      "ip6": "2001:660:4406:500:9:3::27",
+      "ip6": "2001:660:4406:500:9:3:0:27",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:0a",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.239",
-      "ip6": "2001:660:4406:500:9:4::27",
+      "ip6": "2001:660:4406:500:9:4:0:27",
       "kavlan": true,
       "mac": "24:6e:96:03:09:c4",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-4.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-4.json
index 74480cecc4e269afe180d7d7682b1d0f42d48d00..c2ec3b1790d99c1bf38a1dfb30fd809ff5d6026e 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-4.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-4.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::4",
-      "kavlan-11": "2001:660:4406:1a0:509:0::4",
-      "kavlan-12": "2001:660:4406:2a0:509:0::4",
-      "kavlan-13": "2001:660:4406:4a0:509:0::4",
-      "kavlan-14": "2001:660:4406:5a0:509:0::4",
-      "kavlan-16": "2001:660:4406:7a0:509:0::4",
-      "kavlan-18": "2001:660:4406:8a0:509:0::4",
-      "kavlan-2": "2001:660:4406:581:9:0::4",
-      "kavlan-20": "2001:660:4406:3a0:509:0::4",
-      "kavlan-21": "2001:660:4406:6a0:509:0::4",
-      "kavlan-3": "2001:660:4406:582:9:0::4",
-      "kavlan-4": "2001:660:4406:590:9:0::4",
-      "kavlan-5": "2001:660:4406:591:9:0::4",
-      "kavlan-6": "2001:660:4406:592:9:0::4",
-      "kavlan-7": "2001:660:4406:593:9:0::4",
-      "kavlan-8": "2001:660:4406:594:9:0::4",
-      "kavlan-9": "2001:660:4406:595:9:0::4"
+      "kavlan-1": "2001:660:4406:580:9::4",
+      "kavlan-11": "2001:660:4406:1a0:509::4",
+      "kavlan-12": "2001:660:4406:2a0:509::4",
+      "kavlan-13": "2001:660:4406:4a0:509::4",
+      "kavlan-14": "2001:660:4406:5a0:509::4",
+      "kavlan-16": "2001:660:4406:7a0:509::4",
+      "kavlan-18": "2001:660:4406:8a0:509::4",
+      "kavlan-2": "2001:660:4406:581:9::4",
+      "kavlan-20": "2001:660:4406:3a0:509::4",
+      "kavlan-21": "2001:660:4406:6a0:509::4",
+      "kavlan-3": "2001:660:4406:582:9::4",
+      "kavlan-4": "2001:660:4406:590:9::4",
+      "kavlan-5": "2001:660:4406:591:9::4",
+      "kavlan-6": "2001:660:4406:592:9::4",
+      "kavlan-7": "2001:660:4406:593:9::4",
+      "kavlan-8": "2001:660:4406:594:9::4",
+      "kavlan-9": "2001:660:4406:595:9::4"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::4",
-      "kavlan-11": "2001:660:4406:1a0:509:1::4",
-      "kavlan-12": "2001:660:4406:2a0:509:1::4",
-      "kavlan-13": "2001:660:4406:4a0:509:1::4",
-      "kavlan-14": "2001:660:4406:5a0:509:1::4",
-      "kavlan-16": "2001:660:4406:7a0:509:1::4",
-      "kavlan-18": "2001:660:4406:8a0:509:1::4",
-      "kavlan-2": "2001:660:4406:581:9:1::4",
-      "kavlan-20": "2001:660:4406:3a0:509:1::4",
-      "kavlan-21": "2001:660:4406:6a0:509:1::4",
-      "kavlan-3": "2001:660:4406:582:9:1::4",
-      "kavlan-4": "2001:660:4406:590:9:1::4",
-      "kavlan-5": "2001:660:4406:591:9:1::4",
-      "kavlan-6": "2001:660:4406:592:9:1::4",
-      "kavlan-7": "2001:660:4406:593:9:1::4",
-      "kavlan-8": "2001:660:4406:594:9:1::4",
-      "kavlan-9": "2001:660:4406:595:9:1::4"
+      "kavlan-1": "2001:660:4406:580:9:1:0:4",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:4",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:4",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:4",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:4",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:4",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:4",
+      "kavlan-2": "2001:660:4406:581:9:1:0:4",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:4",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:4",
+      "kavlan-3": "2001:660:4406:582:9:1:0:4",
+      "kavlan-4": "2001:660:4406:590:9:1:0:4",
+      "kavlan-5": "2001:660:4406:591:9:1:0:4",
+      "kavlan-6": "2001:660:4406:592:9:1:0:4",
+      "kavlan-7": "2001:660:4406:593:9:1:0:4",
+      "kavlan-8": "2001:660:4406:594:9:1:0:4",
+      "kavlan-9": "2001:660:4406:595:9:1:0:4"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::4",
-      "kavlan-11": "2001:660:4406:1a0:509:2::4",
-      "kavlan-12": "2001:660:4406:2a0:509:2::4",
-      "kavlan-13": "2001:660:4406:4a0:509:2::4",
-      "kavlan-14": "2001:660:4406:5a0:509:2::4",
-      "kavlan-16": "2001:660:4406:7a0:509:2::4",
-      "kavlan-18": "2001:660:4406:8a0:509:2::4",
-      "kavlan-2": "2001:660:4406:581:9:2::4",
-      "kavlan-20": "2001:660:4406:3a0:509:2::4",
-      "kavlan-21": "2001:660:4406:6a0:509:2::4",
-      "kavlan-3": "2001:660:4406:582:9:2::4",
-      "kavlan-4": "2001:660:4406:590:9:2::4",
-      "kavlan-5": "2001:660:4406:591:9:2::4",
-      "kavlan-6": "2001:660:4406:592:9:2::4",
-      "kavlan-7": "2001:660:4406:593:9:2::4",
-      "kavlan-8": "2001:660:4406:594:9:2::4",
-      "kavlan-9": "2001:660:4406:595:9:2::4"
+      "kavlan-1": "2001:660:4406:580:9:2:0:4",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:4",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:4",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:4",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:4",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:4",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:4",
+      "kavlan-2": "2001:660:4406:581:9:2:0:4",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:4",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:4",
+      "kavlan-3": "2001:660:4406:582:9:2:0:4",
+      "kavlan-4": "2001:660:4406:590:9:2:0:4",
+      "kavlan-5": "2001:660:4406:591:9:2:0:4",
+      "kavlan-6": "2001:660:4406:592:9:2:0:4",
+      "kavlan-7": "2001:660:4406:593:9:2:0:4",
+      "kavlan-8": "2001:660:4406:594:9:2:0:4",
+      "kavlan-9": "2001:660:4406:595:9:2:0:4"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::4",
-      "kavlan-11": "2001:660:4406:1a0:509:3::4",
-      "kavlan-12": "2001:660:4406:2a0:509:3::4",
-      "kavlan-13": "2001:660:4406:4a0:509:3::4",
-      "kavlan-14": "2001:660:4406:5a0:509:3::4",
-      "kavlan-16": "2001:660:4406:7a0:509:3::4",
-      "kavlan-18": "2001:660:4406:8a0:509:3::4",
-      "kavlan-2": "2001:660:4406:581:9:3::4",
-      "kavlan-20": "2001:660:4406:3a0:509:3::4",
-      "kavlan-21": "2001:660:4406:6a0:509:3::4",
-      "kavlan-3": "2001:660:4406:582:9:3::4",
-      "kavlan-4": "2001:660:4406:590:9:3::4",
-      "kavlan-5": "2001:660:4406:591:9:3::4",
-      "kavlan-6": "2001:660:4406:592:9:3::4",
-      "kavlan-7": "2001:660:4406:593:9:3::4",
-      "kavlan-8": "2001:660:4406:594:9:3::4",
-      "kavlan-9": "2001:660:4406:595:9:3::4"
+      "kavlan-1": "2001:660:4406:580:9:3:0:4",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:4",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:4",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:4",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:4",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:4",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:4",
+      "kavlan-2": "2001:660:4406:581:9:3:0:4",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:4",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:4",
+      "kavlan-3": "2001:660:4406:582:9:3:0:4",
+      "kavlan-4": "2001:660:4406:590:9:3:0:4",
+      "kavlan-5": "2001:660:4406:591:9:3:0:4",
+      "kavlan-6": "2001:660:4406:592:9:3:0:4",
+      "kavlan-7": "2001:660:4406:593:9:3:0:4",
+      "kavlan-8": "2001:660:4406:594:9:3:0:4",
+      "kavlan-9": "2001:660:4406:595:9:3:0:4"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::4",
-      "kavlan-11": "2001:660:4406:1a0:509:4::4",
-      "kavlan-12": "2001:660:4406:2a0:509:4::4",
-      "kavlan-13": "2001:660:4406:4a0:509:4::4",
-      "kavlan-14": "2001:660:4406:5a0:509:4::4",
-      "kavlan-16": "2001:660:4406:7a0:509:4::4",
-      "kavlan-18": "2001:660:4406:8a0:509:4::4",
-      "kavlan-2": "2001:660:4406:581:9:4::4",
-      "kavlan-20": "2001:660:4406:3a0:509:4::4",
-      "kavlan-21": "2001:660:4406:6a0:509:4::4",
-      "kavlan-3": "2001:660:4406:582:9:4::4",
-      "kavlan-4": "2001:660:4406:590:9:4::4",
-      "kavlan-5": "2001:660:4406:591:9:4::4",
-      "kavlan-6": "2001:660:4406:592:9:4::4",
-      "kavlan-7": "2001:660:4406:593:9:4::4",
-      "kavlan-8": "2001:660:4406:594:9:4::4",
-      "kavlan-9": "2001:660:4406:595:9:4::4"
+      "kavlan-1": "2001:660:4406:580:9:4:0:4",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:4",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:4",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:4",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:4",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:4",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:4",
+      "kavlan-2": "2001:660:4406:581:9:4:0:4",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:4",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:4",
+      "kavlan-3": "2001:660:4406:582:9:4:0:4",
+      "kavlan-4": "2001:660:4406:590:9:4:0:4",
+      "kavlan-5": "2001:660:4406:591:9:4:0:4",
+      "kavlan-6": "2001:660:4406:592:9:4:0:4",
+      "kavlan-7": "2001:660:4406:593:9:4:0:4",
+      "kavlan-8": "2001:660:4406:594:9:4:0:4",
+      "kavlan-9": "2001:660:4406:595:9:4:0:4"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.4",
-      "ip6": "2001:660:4406:500:9:0::4",
+      "ip6": "2001:660:4406:500:9::4",
       "kavlan": true,
       "mac": "24:6e:96:03:0d:40",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.104",
-      "ip6": "2001:660:4406:500:9:1::4",
+      "ip6": "2001:660:4406:500:9:1:0:4",
       "kavlan": true,
       "mac": "24:6e:96:03:0d:42",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.204",
-      "ip6": "2001:660:4406:500:9:2::4",
+      "ip6": "2001:660:4406:500:9:2:0:4",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:bc",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.104",
-      "ip6": "2001:660:4406:500:9:3::4",
+      "ip6": "2001:660:4406:500:9:3:0:4",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:be",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.204",
-      "ip6": "2001:660:4406:500:9:4::4",
+      "ip6": "2001:660:4406:500:9:4:0:4",
       "kavlan": true,
       "mac": "24:6e:96:03:0d:44",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-40.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-40.json
index 3c8979d1d4555f8333fda8c129171176f09ffcc9..7188ece957447a362599168bc151f1bb1a649306 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-40.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-40.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::28",
-      "kavlan-11": "2001:660:4406:1a0:509:0::28",
-      "kavlan-12": "2001:660:4406:2a0:509:0::28",
-      "kavlan-13": "2001:660:4406:4a0:509:0::28",
-      "kavlan-14": "2001:660:4406:5a0:509:0::28",
-      "kavlan-16": "2001:660:4406:7a0:509:0::28",
-      "kavlan-18": "2001:660:4406:8a0:509:0::28",
-      "kavlan-2": "2001:660:4406:581:9:0::28",
-      "kavlan-20": "2001:660:4406:3a0:509:0::28",
-      "kavlan-21": "2001:660:4406:6a0:509:0::28",
-      "kavlan-3": "2001:660:4406:582:9:0::28",
-      "kavlan-4": "2001:660:4406:590:9:0::28",
-      "kavlan-5": "2001:660:4406:591:9:0::28",
-      "kavlan-6": "2001:660:4406:592:9:0::28",
-      "kavlan-7": "2001:660:4406:593:9:0::28",
-      "kavlan-8": "2001:660:4406:594:9:0::28",
-      "kavlan-9": "2001:660:4406:595:9:0::28"
+      "kavlan-1": "2001:660:4406:580:9::28",
+      "kavlan-11": "2001:660:4406:1a0:509::28",
+      "kavlan-12": "2001:660:4406:2a0:509::28",
+      "kavlan-13": "2001:660:4406:4a0:509::28",
+      "kavlan-14": "2001:660:4406:5a0:509::28",
+      "kavlan-16": "2001:660:4406:7a0:509::28",
+      "kavlan-18": "2001:660:4406:8a0:509::28",
+      "kavlan-2": "2001:660:4406:581:9::28",
+      "kavlan-20": "2001:660:4406:3a0:509::28",
+      "kavlan-21": "2001:660:4406:6a0:509::28",
+      "kavlan-3": "2001:660:4406:582:9::28",
+      "kavlan-4": "2001:660:4406:590:9::28",
+      "kavlan-5": "2001:660:4406:591:9::28",
+      "kavlan-6": "2001:660:4406:592:9::28",
+      "kavlan-7": "2001:660:4406:593:9::28",
+      "kavlan-8": "2001:660:4406:594:9::28",
+      "kavlan-9": "2001:660:4406:595:9::28"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::28",
-      "kavlan-11": "2001:660:4406:1a0:509:1::28",
-      "kavlan-12": "2001:660:4406:2a0:509:1::28",
-      "kavlan-13": "2001:660:4406:4a0:509:1::28",
-      "kavlan-14": "2001:660:4406:5a0:509:1::28",
-      "kavlan-16": "2001:660:4406:7a0:509:1::28",
-      "kavlan-18": "2001:660:4406:8a0:509:1::28",
-      "kavlan-2": "2001:660:4406:581:9:1::28",
-      "kavlan-20": "2001:660:4406:3a0:509:1::28",
-      "kavlan-21": "2001:660:4406:6a0:509:1::28",
-      "kavlan-3": "2001:660:4406:582:9:1::28",
-      "kavlan-4": "2001:660:4406:590:9:1::28",
-      "kavlan-5": "2001:660:4406:591:9:1::28",
-      "kavlan-6": "2001:660:4406:592:9:1::28",
-      "kavlan-7": "2001:660:4406:593:9:1::28",
-      "kavlan-8": "2001:660:4406:594:9:1::28",
-      "kavlan-9": "2001:660:4406:595:9:1::28"
+      "kavlan-1": "2001:660:4406:580:9:1:0:28",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:28",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:28",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:28",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:28",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:28",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:28",
+      "kavlan-2": "2001:660:4406:581:9:1:0:28",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:28",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:28",
+      "kavlan-3": "2001:660:4406:582:9:1:0:28",
+      "kavlan-4": "2001:660:4406:590:9:1:0:28",
+      "kavlan-5": "2001:660:4406:591:9:1:0:28",
+      "kavlan-6": "2001:660:4406:592:9:1:0:28",
+      "kavlan-7": "2001:660:4406:593:9:1:0:28",
+      "kavlan-8": "2001:660:4406:594:9:1:0:28",
+      "kavlan-9": "2001:660:4406:595:9:1:0:28"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::28",
-      "kavlan-11": "2001:660:4406:1a0:509:2::28",
-      "kavlan-12": "2001:660:4406:2a0:509:2::28",
-      "kavlan-13": "2001:660:4406:4a0:509:2::28",
-      "kavlan-14": "2001:660:4406:5a0:509:2::28",
-      "kavlan-16": "2001:660:4406:7a0:509:2::28",
-      "kavlan-18": "2001:660:4406:8a0:509:2::28",
-      "kavlan-2": "2001:660:4406:581:9:2::28",
-      "kavlan-20": "2001:660:4406:3a0:509:2::28",
-      "kavlan-21": "2001:660:4406:6a0:509:2::28",
-      "kavlan-3": "2001:660:4406:582:9:2::28",
-      "kavlan-4": "2001:660:4406:590:9:2::28",
-      "kavlan-5": "2001:660:4406:591:9:2::28",
-      "kavlan-6": "2001:660:4406:592:9:2::28",
-      "kavlan-7": "2001:660:4406:593:9:2::28",
-      "kavlan-8": "2001:660:4406:594:9:2::28",
-      "kavlan-9": "2001:660:4406:595:9:2::28"
+      "kavlan-1": "2001:660:4406:580:9:2:0:28",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:28",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:28",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:28",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:28",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:28",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:28",
+      "kavlan-2": "2001:660:4406:581:9:2:0:28",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:28",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:28",
+      "kavlan-3": "2001:660:4406:582:9:2:0:28",
+      "kavlan-4": "2001:660:4406:590:9:2:0:28",
+      "kavlan-5": "2001:660:4406:591:9:2:0:28",
+      "kavlan-6": "2001:660:4406:592:9:2:0:28",
+      "kavlan-7": "2001:660:4406:593:9:2:0:28",
+      "kavlan-8": "2001:660:4406:594:9:2:0:28",
+      "kavlan-9": "2001:660:4406:595:9:2:0:28"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::28",
-      "kavlan-11": "2001:660:4406:1a0:509:3::28",
-      "kavlan-12": "2001:660:4406:2a0:509:3::28",
-      "kavlan-13": "2001:660:4406:4a0:509:3::28",
-      "kavlan-14": "2001:660:4406:5a0:509:3::28",
-      "kavlan-16": "2001:660:4406:7a0:509:3::28",
-      "kavlan-18": "2001:660:4406:8a0:509:3::28",
-      "kavlan-2": "2001:660:4406:581:9:3::28",
-      "kavlan-20": "2001:660:4406:3a0:509:3::28",
-      "kavlan-21": "2001:660:4406:6a0:509:3::28",
-      "kavlan-3": "2001:660:4406:582:9:3::28",
-      "kavlan-4": "2001:660:4406:590:9:3::28",
-      "kavlan-5": "2001:660:4406:591:9:3::28",
-      "kavlan-6": "2001:660:4406:592:9:3::28",
-      "kavlan-7": "2001:660:4406:593:9:3::28",
-      "kavlan-8": "2001:660:4406:594:9:3::28",
-      "kavlan-9": "2001:660:4406:595:9:3::28"
+      "kavlan-1": "2001:660:4406:580:9:3:0:28",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:28",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:28",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:28",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:28",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:28",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:28",
+      "kavlan-2": "2001:660:4406:581:9:3:0:28",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:28",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:28",
+      "kavlan-3": "2001:660:4406:582:9:3:0:28",
+      "kavlan-4": "2001:660:4406:590:9:3:0:28",
+      "kavlan-5": "2001:660:4406:591:9:3:0:28",
+      "kavlan-6": "2001:660:4406:592:9:3:0:28",
+      "kavlan-7": "2001:660:4406:593:9:3:0:28",
+      "kavlan-8": "2001:660:4406:594:9:3:0:28",
+      "kavlan-9": "2001:660:4406:595:9:3:0:28"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::28",
-      "kavlan-11": "2001:660:4406:1a0:509:4::28",
-      "kavlan-12": "2001:660:4406:2a0:509:4::28",
-      "kavlan-13": "2001:660:4406:4a0:509:4::28",
-      "kavlan-14": "2001:660:4406:5a0:509:4::28",
-      "kavlan-16": "2001:660:4406:7a0:509:4::28",
-      "kavlan-18": "2001:660:4406:8a0:509:4::28",
-      "kavlan-2": "2001:660:4406:581:9:4::28",
-      "kavlan-20": "2001:660:4406:3a0:509:4::28",
-      "kavlan-21": "2001:660:4406:6a0:509:4::28",
-      "kavlan-3": "2001:660:4406:582:9:4::28",
-      "kavlan-4": "2001:660:4406:590:9:4::28",
-      "kavlan-5": "2001:660:4406:591:9:4::28",
-      "kavlan-6": "2001:660:4406:592:9:4::28",
-      "kavlan-7": "2001:660:4406:593:9:4::28",
-      "kavlan-8": "2001:660:4406:594:9:4::28",
-      "kavlan-9": "2001:660:4406:595:9:4::28"
+      "kavlan-1": "2001:660:4406:580:9:4:0:28",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:28",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:28",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:28",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:28",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:28",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:28",
+      "kavlan-2": "2001:660:4406:581:9:4:0:28",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:28",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:28",
+      "kavlan-3": "2001:660:4406:582:9:4:0:28",
+      "kavlan-4": "2001:660:4406:590:9:4:0:28",
+      "kavlan-5": "2001:660:4406:591:9:4:0:28",
+      "kavlan-6": "2001:660:4406:592:9:4:0:28",
+      "kavlan-7": "2001:660:4406:593:9:4:0:28",
+      "kavlan-8": "2001:660:4406:594:9:4:0:28",
+      "kavlan-9": "2001:660:4406:595:9:4:0:28"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.40",
-      "ip6": "2001:660:4406:500:9:0::28",
+      "ip6": "2001:660:4406:500:9::28",
       "kavlan": true,
       "mac": "24:6e:96:03:21:58",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.140",
-      "ip6": "2001:660:4406:500:9:1::28",
+      "ip6": "2001:660:4406:500:9:1:0:28",
       "kavlan": true,
       "mac": "24:6e:96:03:21:5a",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.240",
-      "ip6": "2001:660:4406:500:9:2::28",
+      "ip6": "2001:660:4406:500:9:2:0:28",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4a:fc",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.140",
-      "ip6": "2001:660:4406:500:9:3::28",
+      "ip6": "2001:660:4406:500:9:3:0:28",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4a:fe",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.240",
-      "ip6": "2001:660:4406:500:9:4::28",
+      "ip6": "2001:660:4406:500:9:4:0:28",
       "kavlan": true,
       "mac": "24:6e:96:03:21:5c",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-41.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-41.json
index d2b0d189cb23be782f72455fda0f48561aa69f91..cc134e726a4744a61147e4bc58a7f4e9346504cd 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-41.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-41.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::29",
-      "kavlan-11": "2001:660:4406:1a0:509:0::29",
-      "kavlan-12": "2001:660:4406:2a0:509:0::29",
-      "kavlan-13": "2001:660:4406:4a0:509:0::29",
-      "kavlan-14": "2001:660:4406:5a0:509:0::29",
-      "kavlan-16": "2001:660:4406:7a0:509:0::29",
-      "kavlan-18": "2001:660:4406:8a0:509:0::29",
-      "kavlan-2": "2001:660:4406:581:9:0::29",
-      "kavlan-20": "2001:660:4406:3a0:509:0::29",
-      "kavlan-21": "2001:660:4406:6a0:509:0::29",
-      "kavlan-3": "2001:660:4406:582:9:0::29",
-      "kavlan-4": "2001:660:4406:590:9:0::29",
-      "kavlan-5": "2001:660:4406:591:9:0::29",
-      "kavlan-6": "2001:660:4406:592:9:0::29",
-      "kavlan-7": "2001:660:4406:593:9:0::29",
-      "kavlan-8": "2001:660:4406:594:9:0::29",
-      "kavlan-9": "2001:660:4406:595:9:0::29"
+      "kavlan-1": "2001:660:4406:580:9::29",
+      "kavlan-11": "2001:660:4406:1a0:509::29",
+      "kavlan-12": "2001:660:4406:2a0:509::29",
+      "kavlan-13": "2001:660:4406:4a0:509::29",
+      "kavlan-14": "2001:660:4406:5a0:509::29",
+      "kavlan-16": "2001:660:4406:7a0:509::29",
+      "kavlan-18": "2001:660:4406:8a0:509::29",
+      "kavlan-2": "2001:660:4406:581:9::29",
+      "kavlan-20": "2001:660:4406:3a0:509::29",
+      "kavlan-21": "2001:660:4406:6a0:509::29",
+      "kavlan-3": "2001:660:4406:582:9::29",
+      "kavlan-4": "2001:660:4406:590:9::29",
+      "kavlan-5": "2001:660:4406:591:9::29",
+      "kavlan-6": "2001:660:4406:592:9::29",
+      "kavlan-7": "2001:660:4406:593:9::29",
+      "kavlan-8": "2001:660:4406:594:9::29",
+      "kavlan-9": "2001:660:4406:595:9::29"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::29",
-      "kavlan-11": "2001:660:4406:1a0:509:1::29",
-      "kavlan-12": "2001:660:4406:2a0:509:1::29",
-      "kavlan-13": "2001:660:4406:4a0:509:1::29",
-      "kavlan-14": "2001:660:4406:5a0:509:1::29",
-      "kavlan-16": "2001:660:4406:7a0:509:1::29",
-      "kavlan-18": "2001:660:4406:8a0:509:1::29",
-      "kavlan-2": "2001:660:4406:581:9:1::29",
-      "kavlan-20": "2001:660:4406:3a0:509:1::29",
-      "kavlan-21": "2001:660:4406:6a0:509:1::29",
-      "kavlan-3": "2001:660:4406:582:9:1::29",
-      "kavlan-4": "2001:660:4406:590:9:1::29",
-      "kavlan-5": "2001:660:4406:591:9:1::29",
-      "kavlan-6": "2001:660:4406:592:9:1::29",
-      "kavlan-7": "2001:660:4406:593:9:1::29",
-      "kavlan-8": "2001:660:4406:594:9:1::29",
-      "kavlan-9": "2001:660:4406:595:9:1::29"
+      "kavlan-1": "2001:660:4406:580:9:1:0:29",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:29",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:29",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:29",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:29",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:29",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:29",
+      "kavlan-2": "2001:660:4406:581:9:1:0:29",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:29",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:29",
+      "kavlan-3": "2001:660:4406:582:9:1:0:29",
+      "kavlan-4": "2001:660:4406:590:9:1:0:29",
+      "kavlan-5": "2001:660:4406:591:9:1:0:29",
+      "kavlan-6": "2001:660:4406:592:9:1:0:29",
+      "kavlan-7": "2001:660:4406:593:9:1:0:29",
+      "kavlan-8": "2001:660:4406:594:9:1:0:29",
+      "kavlan-9": "2001:660:4406:595:9:1:0:29"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::29",
-      "kavlan-11": "2001:660:4406:1a0:509:2::29",
-      "kavlan-12": "2001:660:4406:2a0:509:2::29",
-      "kavlan-13": "2001:660:4406:4a0:509:2::29",
-      "kavlan-14": "2001:660:4406:5a0:509:2::29",
-      "kavlan-16": "2001:660:4406:7a0:509:2::29",
-      "kavlan-18": "2001:660:4406:8a0:509:2::29",
-      "kavlan-2": "2001:660:4406:581:9:2::29",
-      "kavlan-20": "2001:660:4406:3a0:509:2::29",
-      "kavlan-21": "2001:660:4406:6a0:509:2::29",
-      "kavlan-3": "2001:660:4406:582:9:2::29",
-      "kavlan-4": "2001:660:4406:590:9:2::29",
-      "kavlan-5": "2001:660:4406:591:9:2::29",
-      "kavlan-6": "2001:660:4406:592:9:2::29",
-      "kavlan-7": "2001:660:4406:593:9:2::29",
-      "kavlan-8": "2001:660:4406:594:9:2::29",
-      "kavlan-9": "2001:660:4406:595:9:2::29"
+      "kavlan-1": "2001:660:4406:580:9:2:0:29",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:29",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:29",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:29",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:29",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:29",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:29",
+      "kavlan-2": "2001:660:4406:581:9:2:0:29",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:29",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:29",
+      "kavlan-3": "2001:660:4406:582:9:2:0:29",
+      "kavlan-4": "2001:660:4406:590:9:2:0:29",
+      "kavlan-5": "2001:660:4406:591:9:2:0:29",
+      "kavlan-6": "2001:660:4406:592:9:2:0:29",
+      "kavlan-7": "2001:660:4406:593:9:2:0:29",
+      "kavlan-8": "2001:660:4406:594:9:2:0:29",
+      "kavlan-9": "2001:660:4406:595:9:2:0:29"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::29",
-      "kavlan-11": "2001:660:4406:1a0:509:3::29",
-      "kavlan-12": "2001:660:4406:2a0:509:3::29",
-      "kavlan-13": "2001:660:4406:4a0:509:3::29",
-      "kavlan-14": "2001:660:4406:5a0:509:3::29",
-      "kavlan-16": "2001:660:4406:7a0:509:3::29",
-      "kavlan-18": "2001:660:4406:8a0:509:3::29",
-      "kavlan-2": "2001:660:4406:581:9:3::29",
-      "kavlan-20": "2001:660:4406:3a0:509:3::29",
-      "kavlan-21": "2001:660:4406:6a0:509:3::29",
-      "kavlan-3": "2001:660:4406:582:9:3::29",
-      "kavlan-4": "2001:660:4406:590:9:3::29",
-      "kavlan-5": "2001:660:4406:591:9:3::29",
-      "kavlan-6": "2001:660:4406:592:9:3::29",
-      "kavlan-7": "2001:660:4406:593:9:3::29",
-      "kavlan-8": "2001:660:4406:594:9:3::29",
-      "kavlan-9": "2001:660:4406:595:9:3::29"
+      "kavlan-1": "2001:660:4406:580:9:3:0:29",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:29",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:29",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:29",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:29",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:29",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:29",
+      "kavlan-2": "2001:660:4406:581:9:3:0:29",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:29",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:29",
+      "kavlan-3": "2001:660:4406:582:9:3:0:29",
+      "kavlan-4": "2001:660:4406:590:9:3:0:29",
+      "kavlan-5": "2001:660:4406:591:9:3:0:29",
+      "kavlan-6": "2001:660:4406:592:9:3:0:29",
+      "kavlan-7": "2001:660:4406:593:9:3:0:29",
+      "kavlan-8": "2001:660:4406:594:9:3:0:29",
+      "kavlan-9": "2001:660:4406:595:9:3:0:29"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::29",
-      "kavlan-11": "2001:660:4406:1a0:509:4::29",
-      "kavlan-12": "2001:660:4406:2a0:509:4::29",
-      "kavlan-13": "2001:660:4406:4a0:509:4::29",
-      "kavlan-14": "2001:660:4406:5a0:509:4::29",
-      "kavlan-16": "2001:660:4406:7a0:509:4::29",
-      "kavlan-18": "2001:660:4406:8a0:509:4::29",
-      "kavlan-2": "2001:660:4406:581:9:4::29",
-      "kavlan-20": "2001:660:4406:3a0:509:4::29",
-      "kavlan-21": "2001:660:4406:6a0:509:4::29",
-      "kavlan-3": "2001:660:4406:582:9:4::29",
-      "kavlan-4": "2001:660:4406:590:9:4::29",
-      "kavlan-5": "2001:660:4406:591:9:4::29",
-      "kavlan-6": "2001:660:4406:592:9:4::29",
-      "kavlan-7": "2001:660:4406:593:9:4::29",
-      "kavlan-8": "2001:660:4406:594:9:4::29",
-      "kavlan-9": "2001:660:4406:595:9:4::29"
+      "kavlan-1": "2001:660:4406:580:9:4:0:29",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:29",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:29",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:29",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:29",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:29",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:29",
+      "kavlan-2": "2001:660:4406:581:9:4:0:29",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:29",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:29",
+      "kavlan-3": "2001:660:4406:582:9:4:0:29",
+      "kavlan-4": "2001:660:4406:590:9:4:0:29",
+      "kavlan-5": "2001:660:4406:591:9:4:0:29",
+      "kavlan-6": "2001:660:4406:592:9:4:0:29",
+      "kavlan-7": "2001:660:4406:593:9:4:0:29",
+      "kavlan-8": "2001:660:4406:594:9:4:0:29",
+      "kavlan-9": "2001:660:4406:595:9:4:0:29"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.41",
-      "ip6": "2001:660:4406:500:9:0::29",
+      "ip6": "2001:660:4406:500:9::29",
       "kavlan": true,
       "mac": "24:6e:96:03:11:f8",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.141",
-      "ip6": "2001:660:4406:500:9:1::29",
+      "ip6": "2001:660:4406:500:9:1:0:29",
       "kavlan": true,
       "mac": "24:6e:96:03:11:fa",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.241",
-      "ip6": "2001:660:4406:500:9:2::29",
+      "ip6": "2001:660:4406:500:9:2:0:29",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:7c",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.141",
-      "ip6": "2001:660:4406:500:9:3::29",
+      "ip6": "2001:660:4406:500:9:3:0:29",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:7e",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.241",
-      "ip6": "2001:660:4406:500:9:4::29",
+      "ip6": "2001:660:4406:500:9:4:0:29",
       "kavlan": true,
       "mac": "24:6e:96:03:11:fc",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-42.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-42.json
index cc76143d2014f8bf25319f40cdf7c5005d2e56be..db021e2a778872666404483fe31c29144b9bfdd9 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-42.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-42.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::2a",
-      "kavlan-11": "2001:660:4406:1a0:509:0::2a",
-      "kavlan-12": "2001:660:4406:2a0:509:0::2a",
-      "kavlan-13": "2001:660:4406:4a0:509:0::2a",
-      "kavlan-14": "2001:660:4406:5a0:509:0::2a",
-      "kavlan-16": "2001:660:4406:7a0:509:0::2a",
-      "kavlan-18": "2001:660:4406:8a0:509:0::2a",
-      "kavlan-2": "2001:660:4406:581:9:0::2a",
-      "kavlan-20": "2001:660:4406:3a0:509:0::2a",
-      "kavlan-21": "2001:660:4406:6a0:509:0::2a",
-      "kavlan-3": "2001:660:4406:582:9:0::2a",
-      "kavlan-4": "2001:660:4406:590:9:0::2a",
-      "kavlan-5": "2001:660:4406:591:9:0::2a",
-      "kavlan-6": "2001:660:4406:592:9:0::2a",
-      "kavlan-7": "2001:660:4406:593:9:0::2a",
-      "kavlan-8": "2001:660:4406:594:9:0::2a",
-      "kavlan-9": "2001:660:4406:595:9:0::2a"
+      "kavlan-1": "2001:660:4406:580:9::2a",
+      "kavlan-11": "2001:660:4406:1a0:509::2a",
+      "kavlan-12": "2001:660:4406:2a0:509::2a",
+      "kavlan-13": "2001:660:4406:4a0:509::2a",
+      "kavlan-14": "2001:660:4406:5a0:509::2a",
+      "kavlan-16": "2001:660:4406:7a0:509::2a",
+      "kavlan-18": "2001:660:4406:8a0:509::2a",
+      "kavlan-2": "2001:660:4406:581:9::2a",
+      "kavlan-20": "2001:660:4406:3a0:509::2a",
+      "kavlan-21": "2001:660:4406:6a0:509::2a",
+      "kavlan-3": "2001:660:4406:582:9::2a",
+      "kavlan-4": "2001:660:4406:590:9::2a",
+      "kavlan-5": "2001:660:4406:591:9::2a",
+      "kavlan-6": "2001:660:4406:592:9::2a",
+      "kavlan-7": "2001:660:4406:593:9::2a",
+      "kavlan-8": "2001:660:4406:594:9::2a",
+      "kavlan-9": "2001:660:4406:595:9::2a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::2a",
-      "kavlan-11": "2001:660:4406:1a0:509:1::2a",
-      "kavlan-12": "2001:660:4406:2a0:509:1::2a",
-      "kavlan-13": "2001:660:4406:4a0:509:1::2a",
-      "kavlan-14": "2001:660:4406:5a0:509:1::2a",
-      "kavlan-16": "2001:660:4406:7a0:509:1::2a",
-      "kavlan-18": "2001:660:4406:8a0:509:1::2a",
-      "kavlan-2": "2001:660:4406:581:9:1::2a",
-      "kavlan-20": "2001:660:4406:3a0:509:1::2a",
-      "kavlan-21": "2001:660:4406:6a0:509:1::2a",
-      "kavlan-3": "2001:660:4406:582:9:1::2a",
-      "kavlan-4": "2001:660:4406:590:9:1::2a",
-      "kavlan-5": "2001:660:4406:591:9:1::2a",
-      "kavlan-6": "2001:660:4406:592:9:1::2a",
-      "kavlan-7": "2001:660:4406:593:9:1::2a",
-      "kavlan-8": "2001:660:4406:594:9:1::2a",
-      "kavlan-9": "2001:660:4406:595:9:1::2a"
+      "kavlan-1": "2001:660:4406:580:9:1:0:2a",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:2a",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:2a",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:2a",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:2a",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:2a",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:2a",
+      "kavlan-2": "2001:660:4406:581:9:1:0:2a",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:2a",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:2a",
+      "kavlan-3": "2001:660:4406:582:9:1:0:2a",
+      "kavlan-4": "2001:660:4406:590:9:1:0:2a",
+      "kavlan-5": "2001:660:4406:591:9:1:0:2a",
+      "kavlan-6": "2001:660:4406:592:9:1:0:2a",
+      "kavlan-7": "2001:660:4406:593:9:1:0:2a",
+      "kavlan-8": "2001:660:4406:594:9:1:0:2a",
+      "kavlan-9": "2001:660:4406:595:9:1:0:2a"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::2a",
-      "kavlan-11": "2001:660:4406:1a0:509:2::2a",
-      "kavlan-12": "2001:660:4406:2a0:509:2::2a",
-      "kavlan-13": "2001:660:4406:4a0:509:2::2a",
-      "kavlan-14": "2001:660:4406:5a0:509:2::2a",
-      "kavlan-16": "2001:660:4406:7a0:509:2::2a",
-      "kavlan-18": "2001:660:4406:8a0:509:2::2a",
-      "kavlan-2": "2001:660:4406:581:9:2::2a",
-      "kavlan-20": "2001:660:4406:3a0:509:2::2a",
-      "kavlan-21": "2001:660:4406:6a0:509:2::2a",
-      "kavlan-3": "2001:660:4406:582:9:2::2a",
-      "kavlan-4": "2001:660:4406:590:9:2::2a",
-      "kavlan-5": "2001:660:4406:591:9:2::2a",
-      "kavlan-6": "2001:660:4406:592:9:2::2a",
-      "kavlan-7": "2001:660:4406:593:9:2::2a",
-      "kavlan-8": "2001:660:4406:594:9:2::2a",
-      "kavlan-9": "2001:660:4406:595:9:2::2a"
+      "kavlan-1": "2001:660:4406:580:9:2:0:2a",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:2a",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:2a",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:2a",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:2a",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:2a",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:2a",
+      "kavlan-2": "2001:660:4406:581:9:2:0:2a",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:2a",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:2a",
+      "kavlan-3": "2001:660:4406:582:9:2:0:2a",
+      "kavlan-4": "2001:660:4406:590:9:2:0:2a",
+      "kavlan-5": "2001:660:4406:591:9:2:0:2a",
+      "kavlan-6": "2001:660:4406:592:9:2:0:2a",
+      "kavlan-7": "2001:660:4406:593:9:2:0:2a",
+      "kavlan-8": "2001:660:4406:594:9:2:0:2a",
+      "kavlan-9": "2001:660:4406:595:9:2:0:2a"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::2a",
-      "kavlan-11": "2001:660:4406:1a0:509:3::2a",
-      "kavlan-12": "2001:660:4406:2a0:509:3::2a",
-      "kavlan-13": "2001:660:4406:4a0:509:3::2a",
-      "kavlan-14": "2001:660:4406:5a0:509:3::2a",
-      "kavlan-16": "2001:660:4406:7a0:509:3::2a",
-      "kavlan-18": "2001:660:4406:8a0:509:3::2a",
-      "kavlan-2": "2001:660:4406:581:9:3::2a",
-      "kavlan-20": "2001:660:4406:3a0:509:3::2a",
-      "kavlan-21": "2001:660:4406:6a0:509:3::2a",
-      "kavlan-3": "2001:660:4406:582:9:3::2a",
-      "kavlan-4": "2001:660:4406:590:9:3::2a",
-      "kavlan-5": "2001:660:4406:591:9:3::2a",
-      "kavlan-6": "2001:660:4406:592:9:3::2a",
-      "kavlan-7": "2001:660:4406:593:9:3::2a",
-      "kavlan-8": "2001:660:4406:594:9:3::2a",
-      "kavlan-9": "2001:660:4406:595:9:3::2a"
+      "kavlan-1": "2001:660:4406:580:9:3:0:2a",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:2a",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:2a",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:2a",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:2a",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:2a",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:2a",
+      "kavlan-2": "2001:660:4406:581:9:3:0:2a",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:2a",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:2a",
+      "kavlan-3": "2001:660:4406:582:9:3:0:2a",
+      "kavlan-4": "2001:660:4406:590:9:3:0:2a",
+      "kavlan-5": "2001:660:4406:591:9:3:0:2a",
+      "kavlan-6": "2001:660:4406:592:9:3:0:2a",
+      "kavlan-7": "2001:660:4406:593:9:3:0:2a",
+      "kavlan-8": "2001:660:4406:594:9:3:0:2a",
+      "kavlan-9": "2001:660:4406:595:9:3:0:2a"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::2a",
-      "kavlan-11": "2001:660:4406:1a0:509:4::2a",
-      "kavlan-12": "2001:660:4406:2a0:509:4::2a",
-      "kavlan-13": "2001:660:4406:4a0:509:4::2a",
-      "kavlan-14": "2001:660:4406:5a0:509:4::2a",
-      "kavlan-16": "2001:660:4406:7a0:509:4::2a",
-      "kavlan-18": "2001:660:4406:8a0:509:4::2a",
-      "kavlan-2": "2001:660:4406:581:9:4::2a",
-      "kavlan-20": "2001:660:4406:3a0:509:4::2a",
-      "kavlan-21": "2001:660:4406:6a0:509:4::2a",
-      "kavlan-3": "2001:660:4406:582:9:4::2a",
-      "kavlan-4": "2001:660:4406:590:9:4::2a",
-      "kavlan-5": "2001:660:4406:591:9:4::2a",
-      "kavlan-6": "2001:660:4406:592:9:4::2a",
-      "kavlan-7": "2001:660:4406:593:9:4::2a",
-      "kavlan-8": "2001:660:4406:594:9:4::2a",
-      "kavlan-9": "2001:660:4406:595:9:4::2a"
+      "kavlan-1": "2001:660:4406:580:9:4:0:2a",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:2a",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:2a",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:2a",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:2a",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:2a",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:2a",
+      "kavlan-2": "2001:660:4406:581:9:4:0:2a",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:2a",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:2a",
+      "kavlan-3": "2001:660:4406:582:9:4:0:2a",
+      "kavlan-4": "2001:660:4406:590:9:4:0:2a",
+      "kavlan-5": "2001:660:4406:591:9:4:0:2a",
+      "kavlan-6": "2001:660:4406:592:9:4:0:2a",
+      "kavlan-7": "2001:660:4406:593:9:4:0:2a",
+      "kavlan-8": "2001:660:4406:594:9:4:0:2a",
+      "kavlan-9": "2001:660:4406:595:9:4:0:2a"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.42",
-      "ip6": "2001:660:4406:500:9:0::2a",
+      "ip6": "2001:660:4406:500:9::2a",
       "kavlan": true,
       "mac": "e4:43:4b:1f:c2:f8",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.142",
-      "ip6": "2001:660:4406:500:9:1::2a",
+      "ip6": "2001:660:4406:500:9:1:0:2a",
       "kavlan": true,
       "mac": "e4:43:4b:1f:c2:fa",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.242",
-      "ip6": "2001:660:4406:500:9:2::2a",
+      "ip6": "2001:660:4406:500:9:2:0:2a",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:4c",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.142",
-      "ip6": "2001:660:4406:500:9:3::2a",
+      "ip6": "2001:660:4406:500:9:3:0:2a",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:4e",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.242",
-      "ip6": "2001:660:4406:500:9:4::2a",
+      "ip6": "2001:660:4406:500:9:4:0:2a",
       "kavlan": true,
       "mac": "e4:43:4b:1f:c2:fc",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-43.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-43.json
index 91439b877b68129eef7358e5312a0ee63fbddfa9..f6fad13d5213aca3076e61ebd4485361cbe1033d 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-43.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-43.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::2b",
-      "kavlan-11": "2001:660:4406:1a0:509:0::2b",
-      "kavlan-12": "2001:660:4406:2a0:509:0::2b",
-      "kavlan-13": "2001:660:4406:4a0:509:0::2b",
-      "kavlan-14": "2001:660:4406:5a0:509:0::2b",
-      "kavlan-16": "2001:660:4406:7a0:509:0::2b",
-      "kavlan-18": "2001:660:4406:8a0:509:0::2b",
-      "kavlan-2": "2001:660:4406:581:9:0::2b",
-      "kavlan-20": "2001:660:4406:3a0:509:0::2b",
-      "kavlan-21": "2001:660:4406:6a0:509:0::2b",
-      "kavlan-3": "2001:660:4406:582:9:0::2b",
-      "kavlan-4": "2001:660:4406:590:9:0::2b",
-      "kavlan-5": "2001:660:4406:591:9:0::2b",
-      "kavlan-6": "2001:660:4406:592:9:0::2b",
-      "kavlan-7": "2001:660:4406:593:9:0::2b",
-      "kavlan-8": "2001:660:4406:594:9:0::2b",
-      "kavlan-9": "2001:660:4406:595:9:0::2b"
+      "kavlan-1": "2001:660:4406:580:9::2b",
+      "kavlan-11": "2001:660:4406:1a0:509::2b",
+      "kavlan-12": "2001:660:4406:2a0:509::2b",
+      "kavlan-13": "2001:660:4406:4a0:509::2b",
+      "kavlan-14": "2001:660:4406:5a0:509::2b",
+      "kavlan-16": "2001:660:4406:7a0:509::2b",
+      "kavlan-18": "2001:660:4406:8a0:509::2b",
+      "kavlan-2": "2001:660:4406:581:9::2b",
+      "kavlan-20": "2001:660:4406:3a0:509::2b",
+      "kavlan-21": "2001:660:4406:6a0:509::2b",
+      "kavlan-3": "2001:660:4406:582:9::2b",
+      "kavlan-4": "2001:660:4406:590:9::2b",
+      "kavlan-5": "2001:660:4406:591:9::2b",
+      "kavlan-6": "2001:660:4406:592:9::2b",
+      "kavlan-7": "2001:660:4406:593:9::2b",
+      "kavlan-8": "2001:660:4406:594:9::2b",
+      "kavlan-9": "2001:660:4406:595:9::2b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::2b",
-      "kavlan-11": "2001:660:4406:1a0:509:1::2b",
-      "kavlan-12": "2001:660:4406:2a0:509:1::2b",
-      "kavlan-13": "2001:660:4406:4a0:509:1::2b",
-      "kavlan-14": "2001:660:4406:5a0:509:1::2b",
-      "kavlan-16": "2001:660:4406:7a0:509:1::2b",
-      "kavlan-18": "2001:660:4406:8a0:509:1::2b",
-      "kavlan-2": "2001:660:4406:581:9:1::2b",
-      "kavlan-20": "2001:660:4406:3a0:509:1::2b",
-      "kavlan-21": "2001:660:4406:6a0:509:1::2b",
-      "kavlan-3": "2001:660:4406:582:9:1::2b",
-      "kavlan-4": "2001:660:4406:590:9:1::2b",
-      "kavlan-5": "2001:660:4406:591:9:1::2b",
-      "kavlan-6": "2001:660:4406:592:9:1::2b",
-      "kavlan-7": "2001:660:4406:593:9:1::2b",
-      "kavlan-8": "2001:660:4406:594:9:1::2b",
-      "kavlan-9": "2001:660:4406:595:9:1::2b"
+      "kavlan-1": "2001:660:4406:580:9:1:0:2b",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:2b",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:2b",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:2b",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:2b",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:2b",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:2b",
+      "kavlan-2": "2001:660:4406:581:9:1:0:2b",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:2b",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:2b",
+      "kavlan-3": "2001:660:4406:582:9:1:0:2b",
+      "kavlan-4": "2001:660:4406:590:9:1:0:2b",
+      "kavlan-5": "2001:660:4406:591:9:1:0:2b",
+      "kavlan-6": "2001:660:4406:592:9:1:0:2b",
+      "kavlan-7": "2001:660:4406:593:9:1:0:2b",
+      "kavlan-8": "2001:660:4406:594:9:1:0:2b",
+      "kavlan-9": "2001:660:4406:595:9:1:0:2b"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::2b",
-      "kavlan-11": "2001:660:4406:1a0:509:2::2b",
-      "kavlan-12": "2001:660:4406:2a0:509:2::2b",
-      "kavlan-13": "2001:660:4406:4a0:509:2::2b",
-      "kavlan-14": "2001:660:4406:5a0:509:2::2b",
-      "kavlan-16": "2001:660:4406:7a0:509:2::2b",
-      "kavlan-18": "2001:660:4406:8a0:509:2::2b",
-      "kavlan-2": "2001:660:4406:581:9:2::2b",
-      "kavlan-20": "2001:660:4406:3a0:509:2::2b",
-      "kavlan-21": "2001:660:4406:6a0:509:2::2b",
-      "kavlan-3": "2001:660:4406:582:9:2::2b",
-      "kavlan-4": "2001:660:4406:590:9:2::2b",
-      "kavlan-5": "2001:660:4406:591:9:2::2b",
-      "kavlan-6": "2001:660:4406:592:9:2::2b",
-      "kavlan-7": "2001:660:4406:593:9:2::2b",
-      "kavlan-8": "2001:660:4406:594:9:2::2b",
-      "kavlan-9": "2001:660:4406:595:9:2::2b"
+      "kavlan-1": "2001:660:4406:580:9:2:0:2b",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:2b",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:2b",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:2b",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:2b",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:2b",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:2b",
+      "kavlan-2": "2001:660:4406:581:9:2:0:2b",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:2b",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:2b",
+      "kavlan-3": "2001:660:4406:582:9:2:0:2b",
+      "kavlan-4": "2001:660:4406:590:9:2:0:2b",
+      "kavlan-5": "2001:660:4406:591:9:2:0:2b",
+      "kavlan-6": "2001:660:4406:592:9:2:0:2b",
+      "kavlan-7": "2001:660:4406:593:9:2:0:2b",
+      "kavlan-8": "2001:660:4406:594:9:2:0:2b",
+      "kavlan-9": "2001:660:4406:595:9:2:0:2b"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::2b",
-      "kavlan-11": "2001:660:4406:1a0:509:3::2b",
-      "kavlan-12": "2001:660:4406:2a0:509:3::2b",
-      "kavlan-13": "2001:660:4406:4a0:509:3::2b",
-      "kavlan-14": "2001:660:4406:5a0:509:3::2b",
-      "kavlan-16": "2001:660:4406:7a0:509:3::2b",
-      "kavlan-18": "2001:660:4406:8a0:509:3::2b",
-      "kavlan-2": "2001:660:4406:581:9:3::2b",
-      "kavlan-20": "2001:660:4406:3a0:509:3::2b",
-      "kavlan-21": "2001:660:4406:6a0:509:3::2b",
-      "kavlan-3": "2001:660:4406:582:9:3::2b",
-      "kavlan-4": "2001:660:4406:590:9:3::2b",
-      "kavlan-5": "2001:660:4406:591:9:3::2b",
-      "kavlan-6": "2001:660:4406:592:9:3::2b",
-      "kavlan-7": "2001:660:4406:593:9:3::2b",
-      "kavlan-8": "2001:660:4406:594:9:3::2b",
-      "kavlan-9": "2001:660:4406:595:9:3::2b"
+      "kavlan-1": "2001:660:4406:580:9:3:0:2b",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:2b",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:2b",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:2b",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:2b",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:2b",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:2b",
+      "kavlan-2": "2001:660:4406:581:9:3:0:2b",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:2b",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:2b",
+      "kavlan-3": "2001:660:4406:582:9:3:0:2b",
+      "kavlan-4": "2001:660:4406:590:9:3:0:2b",
+      "kavlan-5": "2001:660:4406:591:9:3:0:2b",
+      "kavlan-6": "2001:660:4406:592:9:3:0:2b",
+      "kavlan-7": "2001:660:4406:593:9:3:0:2b",
+      "kavlan-8": "2001:660:4406:594:9:3:0:2b",
+      "kavlan-9": "2001:660:4406:595:9:3:0:2b"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::2b",
-      "kavlan-11": "2001:660:4406:1a0:509:4::2b",
-      "kavlan-12": "2001:660:4406:2a0:509:4::2b",
-      "kavlan-13": "2001:660:4406:4a0:509:4::2b",
-      "kavlan-14": "2001:660:4406:5a0:509:4::2b",
-      "kavlan-16": "2001:660:4406:7a0:509:4::2b",
-      "kavlan-18": "2001:660:4406:8a0:509:4::2b",
-      "kavlan-2": "2001:660:4406:581:9:4::2b",
-      "kavlan-20": "2001:660:4406:3a0:509:4::2b",
-      "kavlan-21": "2001:660:4406:6a0:509:4::2b",
-      "kavlan-3": "2001:660:4406:582:9:4::2b",
-      "kavlan-4": "2001:660:4406:590:9:4::2b",
-      "kavlan-5": "2001:660:4406:591:9:4::2b",
-      "kavlan-6": "2001:660:4406:592:9:4::2b",
-      "kavlan-7": "2001:660:4406:593:9:4::2b",
-      "kavlan-8": "2001:660:4406:594:9:4::2b",
-      "kavlan-9": "2001:660:4406:595:9:4::2b"
+      "kavlan-1": "2001:660:4406:580:9:4:0:2b",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:2b",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:2b",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:2b",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:2b",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:2b",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:2b",
+      "kavlan-2": "2001:660:4406:581:9:4:0:2b",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:2b",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:2b",
+      "kavlan-3": "2001:660:4406:582:9:4:0:2b",
+      "kavlan-4": "2001:660:4406:590:9:4:0:2b",
+      "kavlan-5": "2001:660:4406:591:9:4:0:2b",
+      "kavlan-6": "2001:660:4406:592:9:4:0:2b",
+      "kavlan-7": "2001:660:4406:593:9:4:0:2b",
+      "kavlan-8": "2001:660:4406:594:9:4:0:2b",
+      "kavlan-9": "2001:660:4406:595:9:4:0:2b"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.43",
-      "ip6": "2001:660:4406:500:9:0::2b",
+      "ip6": "2001:660:4406:500:9::2b",
       "kavlan": true,
       "mac": "24:6e:96:03:09:e0",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.143",
-      "ip6": "2001:660:4406:500:9:1::2b",
+      "ip6": "2001:660:4406:500:9:1:0:2b",
       "kavlan": true,
       "mac": "24:6e:96:03:09:e2",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.243",
-      "ip6": "2001:660:4406:500:9:2::2b",
+      "ip6": "2001:660:4406:500:9:2:0:2b",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:98",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.143",
-      "ip6": "2001:660:4406:500:9:3::2b",
+      "ip6": "2001:660:4406:500:9:3:0:2b",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:9a",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.243",
-      "ip6": "2001:660:4406:500:9:4::2b",
+      "ip6": "2001:660:4406:500:9:4:0:2b",
       "kavlan": true,
       "mac": "24:6e:96:03:09:e4",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-44.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-44.json
index 6f0c86e1bca48fefa1f546c080ae3bc0e4cf8378..6ec33abebb6a45ba6767c9ec2d74cf2d23e29577 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-44.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-44.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::2c",
-      "kavlan-11": "2001:660:4406:1a0:509:0::2c",
-      "kavlan-12": "2001:660:4406:2a0:509:0::2c",
-      "kavlan-13": "2001:660:4406:4a0:509:0::2c",
-      "kavlan-14": "2001:660:4406:5a0:509:0::2c",
-      "kavlan-16": "2001:660:4406:7a0:509:0::2c",
-      "kavlan-18": "2001:660:4406:8a0:509:0::2c",
-      "kavlan-2": "2001:660:4406:581:9:0::2c",
-      "kavlan-20": "2001:660:4406:3a0:509:0::2c",
-      "kavlan-21": "2001:660:4406:6a0:509:0::2c",
-      "kavlan-3": "2001:660:4406:582:9:0::2c",
-      "kavlan-4": "2001:660:4406:590:9:0::2c",
-      "kavlan-5": "2001:660:4406:591:9:0::2c",
-      "kavlan-6": "2001:660:4406:592:9:0::2c",
-      "kavlan-7": "2001:660:4406:593:9:0::2c",
-      "kavlan-8": "2001:660:4406:594:9:0::2c",
-      "kavlan-9": "2001:660:4406:595:9:0::2c"
+      "kavlan-1": "2001:660:4406:580:9::2c",
+      "kavlan-11": "2001:660:4406:1a0:509::2c",
+      "kavlan-12": "2001:660:4406:2a0:509::2c",
+      "kavlan-13": "2001:660:4406:4a0:509::2c",
+      "kavlan-14": "2001:660:4406:5a0:509::2c",
+      "kavlan-16": "2001:660:4406:7a0:509::2c",
+      "kavlan-18": "2001:660:4406:8a0:509::2c",
+      "kavlan-2": "2001:660:4406:581:9::2c",
+      "kavlan-20": "2001:660:4406:3a0:509::2c",
+      "kavlan-21": "2001:660:4406:6a0:509::2c",
+      "kavlan-3": "2001:660:4406:582:9::2c",
+      "kavlan-4": "2001:660:4406:590:9::2c",
+      "kavlan-5": "2001:660:4406:591:9::2c",
+      "kavlan-6": "2001:660:4406:592:9::2c",
+      "kavlan-7": "2001:660:4406:593:9::2c",
+      "kavlan-8": "2001:660:4406:594:9::2c",
+      "kavlan-9": "2001:660:4406:595:9::2c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::2c",
-      "kavlan-11": "2001:660:4406:1a0:509:1::2c",
-      "kavlan-12": "2001:660:4406:2a0:509:1::2c",
-      "kavlan-13": "2001:660:4406:4a0:509:1::2c",
-      "kavlan-14": "2001:660:4406:5a0:509:1::2c",
-      "kavlan-16": "2001:660:4406:7a0:509:1::2c",
-      "kavlan-18": "2001:660:4406:8a0:509:1::2c",
-      "kavlan-2": "2001:660:4406:581:9:1::2c",
-      "kavlan-20": "2001:660:4406:3a0:509:1::2c",
-      "kavlan-21": "2001:660:4406:6a0:509:1::2c",
-      "kavlan-3": "2001:660:4406:582:9:1::2c",
-      "kavlan-4": "2001:660:4406:590:9:1::2c",
-      "kavlan-5": "2001:660:4406:591:9:1::2c",
-      "kavlan-6": "2001:660:4406:592:9:1::2c",
-      "kavlan-7": "2001:660:4406:593:9:1::2c",
-      "kavlan-8": "2001:660:4406:594:9:1::2c",
-      "kavlan-9": "2001:660:4406:595:9:1::2c"
+      "kavlan-1": "2001:660:4406:580:9:1:0:2c",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:2c",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:2c",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:2c",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:2c",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:2c",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:2c",
+      "kavlan-2": "2001:660:4406:581:9:1:0:2c",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:2c",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:2c",
+      "kavlan-3": "2001:660:4406:582:9:1:0:2c",
+      "kavlan-4": "2001:660:4406:590:9:1:0:2c",
+      "kavlan-5": "2001:660:4406:591:9:1:0:2c",
+      "kavlan-6": "2001:660:4406:592:9:1:0:2c",
+      "kavlan-7": "2001:660:4406:593:9:1:0:2c",
+      "kavlan-8": "2001:660:4406:594:9:1:0:2c",
+      "kavlan-9": "2001:660:4406:595:9:1:0:2c"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::2c",
-      "kavlan-11": "2001:660:4406:1a0:509:2::2c",
-      "kavlan-12": "2001:660:4406:2a0:509:2::2c",
-      "kavlan-13": "2001:660:4406:4a0:509:2::2c",
-      "kavlan-14": "2001:660:4406:5a0:509:2::2c",
-      "kavlan-16": "2001:660:4406:7a0:509:2::2c",
-      "kavlan-18": "2001:660:4406:8a0:509:2::2c",
-      "kavlan-2": "2001:660:4406:581:9:2::2c",
-      "kavlan-20": "2001:660:4406:3a0:509:2::2c",
-      "kavlan-21": "2001:660:4406:6a0:509:2::2c",
-      "kavlan-3": "2001:660:4406:582:9:2::2c",
-      "kavlan-4": "2001:660:4406:590:9:2::2c",
-      "kavlan-5": "2001:660:4406:591:9:2::2c",
-      "kavlan-6": "2001:660:4406:592:9:2::2c",
-      "kavlan-7": "2001:660:4406:593:9:2::2c",
-      "kavlan-8": "2001:660:4406:594:9:2::2c",
-      "kavlan-9": "2001:660:4406:595:9:2::2c"
+      "kavlan-1": "2001:660:4406:580:9:2:0:2c",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:2c",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:2c",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:2c",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:2c",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:2c",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:2c",
+      "kavlan-2": "2001:660:4406:581:9:2:0:2c",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:2c",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:2c",
+      "kavlan-3": "2001:660:4406:582:9:2:0:2c",
+      "kavlan-4": "2001:660:4406:590:9:2:0:2c",
+      "kavlan-5": "2001:660:4406:591:9:2:0:2c",
+      "kavlan-6": "2001:660:4406:592:9:2:0:2c",
+      "kavlan-7": "2001:660:4406:593:9:2:0:2c",
+      "kavlan-8": "2001:660:4406:594:9:2:0:2c",
+      "kavlan-9": "2001:660:4406:595:9:2:0:2c"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::2c",
-      "kavlan-11": "2001:660:4406:1a0:509:3::2c",
-      "kavlan-12": "2001:660:4406:2a0:509:3::2c",
-      "kavlan-13": "2001:660:4406:4a0:509:3::2c",
-      "kavlan-14": "2001:660:4406:5a0:509:3::2c",
-      "kavlan-16": "2001:660:4406:7a0:509:3::2c",
-      "kavlan-18": "2001:660:4406:8a0:509:3::2c",
-      "kavlan-2": "2001:660:4406:581:9:3::2c",
-      "kavlan-20": "2001:660:4406:3a0:509:3::2c",
-      "kavlan-21": "2001:660:4406:6a0:509:3::2c",
-      "kavlan-3": "2001:660:4406:582:9:3::2c",
-      "kavlan-4": "2001:660:4406:590:9:3::2c",
-      "kavlan-5": "2001:660:4406:591:9:3::2c",
-      "kavlan-6": "2001:660:4406:592:9:3::2c",
-      "kavlan-7": "2001:660:4406:593:9:3::2c",
-      "kavlan-8": "2001:660:4406:594:9:3::2c",
-      "kavlan-9": "2001:660:4406:595:9:3::2c"
+      "kavlan-1": "2001:660:4406:580:9:3:0:2c",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:2c",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:2c",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:2c",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:2c",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:2c",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:2c",
+      "kavlan-2": "2001:660:4406:581:9:3:0:2c",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:2c",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:2c",
+      "kavlan-3": "2001:660:4406:582:9:3:0:2c",
+      "kavlan-4": "2001:660:4406:590:9:3:0:2c",
+      "kavlan-5": "2001:660:4406:591:9:3:0:2c",
+      "kavlan-6": "2001:660:4406:592:9:3:0:2c",
+      "kavlan-7": "2001:660:4406:593:9:3:0:2c",
+      "kavlan-8": "2001:660:4406:594:9:3:0:2c",
+      "kavlan-9": "2001:660:4406:595:9:3:0:2c"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::2c",
-      "kavlan-11": "2001:660:4406:1a0:509:4::2c",
-      "kavlan-12": "2001:660:4406:2a0:509:4::2c",
-      "kavlan-13": "2001:660:4406:4a0:509:4::2c",
-      "kavlan-14": "2001:660:4406:5a0:509:4::2c",
-      "kavlan-16": "2001:660:4406:7a0:509:4::2c",
-      "kavlan-18": "2001:660:4406:8a0:509:4::2c",
-      "kavlan-2": "2001:660:4406:581:9:4::2c",
-      "kavlan-20": "2001:660:4406:3a0:509:4::2c",
-      "kavlan-21": "2001:660:4406:6a0:509:4::2c",
-      "kavlan-3": "2001:660:4406:582:9:4::2c",
-      "kavlan-4": "2001:660:4406:590:9:4::2c",
-      "kavlan-5": "2001:660:4406:591:9:4::2c",
-      "kavlan-6": "2001:660:4406:592:9:4::2c",
-      "kavlan-7": "2001:660:4406:593:9:4::2c",
-      "kavlan-8": "2001:660:4406:594:9:4::2c",
-      "kavlan-9": "2001:660:4406:595:9:4::2c"
+      "kavlan-1": "2001:660:4406:580:9:4:0:2c",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:2c",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:2c",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:2c",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:2c",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:2c",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:2c",
+      "kavlan-2": "2001:660:4406:581:9:4:0:2c",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:2c",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:2c",
+      "kavlan-3": "2001:660:4406:582:9:4:0:2c",
+      "kavlan-4": "2001:660:4406:590:9:4:0:2c",
+      "kavlan-5": "2001:660:4406:591:9:4:0:2c",
+      "kavlan-6": "2001:660:4406:592:9:4:0:2c",
+      "kavlan-7": "2001:660:4406:593:9:4:0:2c",
+      "kavlan-8": "2001:660:4406:594:9:4:0:2c",
+      "kavlan-9": "2001:660:4406:595:9:4:0:2c"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.44",
-      "ip6": "2001:660:4406:500:9:0::2c",
+      "ip6": "2001:660:4406:500:9::2c",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:10",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.144",
-      "ip6": "2001:660:4406:500:9:1::2c",
+      "ip6": "2001:660:4406:500:9:1:0:2c",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:12",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.244",
-      "ip6": "2001:660:4406:500:9:2::2c",
+      "ip6": "2001:660:4406:500:9:2:0:2c",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:d8",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.144",
-      "ip6": "2001:660:4406:500:9:3::2c",
+      "ip6": "2001:660:4406:500:9:3:0:2c",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:da",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.244",
-      "ip6": "2001:660:4406:500:9:4::2c",
+      "ip6": "2001:660:4406:500:9:4:0:2c",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:14",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-45.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-45.json
index 66153eb94636c52ccd625bdd55c729b9c958ff23..8eeb1e576f8eeec4999550bfe98da813d9aa6026 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-45.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-45.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::2d",
-      "kavlan-11": "2001:660:4406:1a0:509:0::2d",
-      "kavlan-12": "2001:660:4406:2a0:509:0::2d",
-      "kavlan-13": "2001:660:4406:4a0:509:0::2d",
-      "kavlan-14": "2001:660:4406:5a0:509:0::2d",
-      "kavlan-16": "2001:660:4406:7a0:509:0::2d",
-      "kavlan-18": "2001:660:4406:8a0:509:0::2d",
-      "kavlan-2": "2001:660:4406:581:9:0::2d",
-      "kavlan-20": "2001:660:4406:3a0:509:0::2d",
-      "kavlan-21": "2001:660:4406:6a0:509:0::2d",
-      "kavlan-3": "2001:660:4406:582:9:0::2d",
-      "kavlan-4": "2001:660:4406:590:9:0::2d",
-      "kavlan-5": "2001:660:4406:591:9:0::2d",
-      "kavlan-6": "2001:660:4406:592:9:0::2d",
-      "kavlan-7": "2001:660:4406:593:9:0::2d",
-      "kavlan-8": "2001:660:4406:594:9:0::2d",
-      "kavlan-9": "2001:660:4406:595:9:0::2d"
+      "kavlan-1": "2001:660:4406:580:9::2d",
+      "kavlan-11": "2001:660:4406:1a0:509::2d",
+      "kavlan-12": "2001:660:4406:2a0:509::2d",
+      "kavlan-13": "2001:660:4406:4a0:509::2d",
+      "kavlan-14": "2001:660:4406:5a0:509::2d",
+      "kavlan-16": "2001:660:4406:7a0:509::2d",
+      "kavlan-18": "2001:660:4406:8a0:509::2d",
+      "kavlan-2": "2001:660:4406:581:9::2d",
+      "kavlan-20": "2001:660:4406:3a0:509::2d",
+      "kavlan-21": "2001:660:4406:6a0:509::2d",
+      "kavlan-3": "2001:660:4406:582:9::2d",
+      "kavlan-4": "2001:660:4406:590:9::2d",
+      "kavlan-5": "2001:660:4406:591:9::2d",
+      "kavlan-6": "2001:660:4406:592:9::2d",
+      "kavlan-7": "2001:660:4406:593:9::2d",
+      "kavlan-8": "2001:660:4406:594:9::2d",
+      "kavlan-9": "2001:660:4406:595:9::2d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::2d",
-      "kavlan-11": "2001:660:4406:1a0:509:1::2d",
-      "kavlan-12": "2001:660:4406:2a0:509:1::2d",
-      "kavlan-13": "2001:660:4406:4a0:509:1::2d",
-      "kavlan-14": "2001:660:4406:5a0:509:1::2d",
-      "kavlan-16": "2001:660:4406:7a0:509:1::2d",
-      "kavlan-18": "2001:660:4406:8a0:509:1::2d",
-      "kavlan-2": "2001:660:4406:581:9:1::2d",
-      "kavlan-20": "2001:660:4406:3a0:509:1::2d",
-      "kavlan-21": "2001:660:4406:6a0:509:1::2d",
-      "kavlan-3": "2001:660:4406:582:9:1::2d",
-      "kavlan-4": "2001:660:4406:590:9:1::2d",
-      "kavlan-5": "2001:660:4406:591:9:1::2d",
-      "kavlan-6": "2001:660:4406:592:9:1::2d",
-      "kavlan-7": "2001:660:4406:593:9:1::2d",
-      "kavlan-8": "2001:660:4406:594:9:1::2d",
-      "kavlan-9": "2001:660:4406:595:9:1::2d"
+      "kavlan-1": "2001:660:4406:580:9:1:0:2d",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:2d",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:2d",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:2d",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:2d",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:2d",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:2d",
+      "kavlan-2": "2001:660:4406:581:9:1:0:2d",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:2d",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:2d",
+      "kavlan-3": "2001:660:4406:582:9:1:0:2d",
+      "kavlan-4": "2001:660:4406:590:9:1:0:2d",
+      "kavlan-5": "2001:660:4406:591:9:1:0:2d",
+      "kavlan-6": "2001:660:4406:592:9:1:0:2d",
+      "kavlan-7": "2001:660:4406:593:9:1:0:2d",
+      "kavlan-8": "2001:660:4406:594:9:1:0:2d",
+      "kavlan-9": "2001:660:4406:595:9:1:0:2d"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::2d",
-      "kavlan-11": "2001:660:4406:1a0:509:2::2d",
-      "kavlan-12": "2001:660:4406:2a0:509:2::2d",
-      "kavlan-13": "2001:660:4406:4a0:509:2::2d",
-      "kavlan-14": "2001:660:4406:5a0:509:2::2d",
-      "kavlan-16": "2001:660:4406:7a0:509:2::2d",
-      "kavlan-18": "2001:660:4406:8a0:509:2::2d",
-      "kavlan-2": "2001:660:4406:581:9:2::2d",
-      "kavlan-20": "2001:660:4406:3a0:509:2::2d",
-      "kavlan-21": "2001:660:4406:6a0:509:2::2d",
-      "kavlan-3": "2001:660:4406:582:9:2::2d",
-      "kavlan-4": "2001:660:4406:590:9:2::2d",
-      "kavlan-5": "2001:660:4406:591:9:2::2d",
-      "kavlan-6": "2001:660:4406:592:9:2::2d",
-      "kavlan-7": "2001:660:4406:593:9:2::2d",
-      "kavlan-8": "2001:660:4406:594:9:2::2d",
-      "kavlan-9": "2001:660:4406:595:9:2::2d"
+      "kavlan-1": "2001:660:4406:580:9:2:0:2d",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:2d",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:2d",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:2d",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:2d",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:2d",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:2d",
+      "kavlan-2": "2001:660:4406:581:9:2:0:2d",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:2d",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:2d",
+      "kavlan-3": "2001:660:4406:582:9:2:0:2d",
+      "kavlan-4": "2001:660:4406:590:9:2:0:2d",
+      "kavlan-5": "2001:660:4406:591:9:2:0:2d",
+      "kavlan-6": "2001:660:4406:592:9:2:0:2d",
+      "kavlan-7": "2001:660:4406:593:9:2:0:2d",
+      "kavlan-8": "2001:660:4406:594:9:2:0:2d",
+      "kavlan-9": "2001:660:4406:595:9:2:0:2d"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::2d",
-      "kavlan-11": "2001:660:4406:1a0:509:3::2d",
-      "kavlan-12": "2001:660:4406:2a0:509:3::2d",
-      "kavlan-13": "2001:660:4406:4a0:509:3::2d",
-      "kavlan-14": "2001:660:4406:5a0:509:3::2d",
-      "kavlan-16": "2001:660:4406:7a0:509:3::2d",
-      "kavlan-18": "2001:660:4406:8a0:509:3::2d",
-      "kavlan-2": "2001:660:4406:581:9:3::2d",
-      "kavlan-20": "2001:660:4406:3a0:509:3::2d",
-      "kavlan-21": "2001:660:4406:6a0:509:3::2d",
-      "kavlan-3": "2001:660:4406:582:9:3::2d",
-      "kavlan-4": "2001:660:4406:590:9:3::2d",
-      "kavlan-5": "2001:660:4406:591:9:3::2d",
-      "kavlan-6": "2001:660:4406:592:9:3::2d",
-      "kavlan-7": "2001:660:4406:593:9:3::2d",
-      "kavlan-8": "2001:660:4406:594:9:3::2d",
-      "kavlan-9": "2001:660:4406:595:9:3::2d"
+      "kavlan-1": "2001:660:4406:580:9:3:0:2d",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:2d",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:2d",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:2d",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:2d",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:2d",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:2d",
+      "kavlan-2": "2001:660:4406:581:9:3:0:2d",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:2d",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:2d",
+      "kavlan-3": "2001:660:4406:582:9:3:0:2d",
+      "kavlan-4": "2001:660:4406:590:9:3:0:2d",
+      "kavlan-5": "2001:660:4406:591:9:3:0:2d",
+      "kavlan-6": "2001:660:4406:592:9:3:0:2d",
+      "kavlan-7": "2001:660:4406:593:9:3:0:2d",
+      "kavlan-8": "2001:660:4406:594:9:3:0:2d",
+      "kavlan-9": "2001:660:4406:595:9:3:0:2d"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::2d",
-      "kavlan-11": "2001:660:4406:1a0:509:4::2d",
-      "kavlan-12": "2001:660:4406:2a0:509:4::2d",
-      "kavlan-13": "2001:660:4406:4a0:509:4::2d",
-      "kavlan-14": "2001:660:4406:5a0:509:4::2d",
-      "kavlan-16": "2001:660:4406:7a0:509:4::2d",
-      "kavlan-18": "2001:660:4406:8a0:509:4::2d",
-      "kavlan-2": "2001:660:4406:581:9:4::2d",
-      "kavlan-20": "2001:660:4406:3a0:509:4::2d",
-      "kavlan-21": "2001:660:4406:6a0:509:4::2d",
-      "kavlan-3": "2001:660:4406:582:9:4::2d",
-      "kavlan-4": "2001:660:4406:590:9:4::2d",
-      "kavlan-5": "2001:660:4406:591:9:4::2d",
-      "kavlan-6": "2001:660:4406:592:9:4::2d",
-      "kavlan-7": "2001:660:4406:593:9:4::2d",
-      "kavlan-8": "2001:660:4406:594:9:4::2d",
-      "kavlan-9": "2001:660:4406:595:9:4::2d"
+      "kavlan-1": "2001:660:4406:580:9:4:0:2d",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:2d",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:2d",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:2d",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:2d",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:2d",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:2d",
+      "kavlan-2": "2001:660:4406:581:9:4:0:2d",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:2d",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:2d",
+      "kavlan-3": "2001:660:4406:582:9:4:0:2d",
+      "kavlan-4": "2001:660:4406:590:9:4:0:2d",
+      "kavlan-5": "2001:660:4406:591:9:4:0:2d",
+      "kavlan-6": "2001:660:4406:592:9:4:0:2d",
+      "kavlan-7": "2001:660:4406:593:9:4:0:2d",
+      "kavlan-8": "2001:660:4406:594:9:4:0:2d",
+      "kavlan-9": "2001:660:4406:595:9:4:0:2d"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.45",
-      "ip6": "2001:660:4406:500:9:0::2d",
+      "ip6": "2001:660:4406:500:9::2d",
       "kavlan": true,
       "mac": "24:6e:96:03:0d:68",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.145",
-      "ip6": "2001:660:4406:500:9:1::2d",
+      "ip6": "2001:660:4406:500:9:1:0:2d",
       "kavlan": true,
       "mac": "24:6e:96:03:0d:6a",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.245",
-      "ip6": "2001:660:4406:500:9:2::2d",
+      "ip6": "2001:660:4406:500:9:2:0:2d",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:e4",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.145",
-      "ip6": "2001:660:4406:500:9:3::2d",
+      "ip6": "2001:660:4406:500:9:3:0:2d",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4e:e6",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.245",
-      "ip6": "2001:660:4406:500:9:4::2d",
+      "ip6": "2001:660:4406:500:9:4:0:2d",
       "kavlan": true,
       "mac": "24:6e:96:03:0d:6c",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-46.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-46.json
index 8466bf2084e7aba3cd9470abd80bbbba0096c321..6060eef9ef9198e0b944ecfc5053c2311350e534 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-46.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-46.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::2e",
-      "kavlan-11": "2001:660:4406:1a0:509:0::2e",
-      "kavlan-12": "2001:660:4406:2a0:509:0::2e",
-      "kavlan-13": "2001:660:4406:4a0:509:0::2e",
-      "kavlan-14": "2001:660:4406:5a0:509:0::2e",
-      "kavlan-16": "2001:660:4406:7a0:509:0::2e",
-      "kavlan-18": "2001:660:4406:8a0:509:0::2e",
-      "kavlan-2": "2001:660:4406:581:9:0::2e",
-      "kavlan-20": "2001:660:4406:3a0:509:0::2e",
-      "kavlan-21": "2001:660:4406:6a0:509:0::2e",
-      "kavlan-3": "2001:660:4406:582:9:0::2e",
-      "kavlan-4": "2001:660:4406:590:9:0::2e",
-      "kavlan-5": "2001:660:4406:591:9:0::2e",
-      "kavlan-6": "2001:660:4406:592:9:0::2e",
-      "kavlan-7": "2001:660:4406:593:9:0::2e",
-      "kavlan-8": "2001:660:4406:594:9:0::2e",
-      "kavlan-9": "2001:660:4406:595:9:0::2e"
+      "kavlan-1": "2001:660:4406:580:9::2e",
+      "kavlan-11": "2001:660:4406:1a0:509::2e",
+      "kavlan-12": "2001:660:4406:2a0:509::2e",
+      "kavlan-13": "2001:660:4406:4a0:509::2e",
+      "kavlan-14": "2001:660:4406:5a0:509::2e",
+      "kavlan-16": "2001:660:4406:7a0:509::2e",
+      "kavlan-18": "2001:660:4406:8a0:509::2e",
+      "kavlan-2": "2001:660:4406:581:9::2e",
+      "kavlan-20": "2001:660:4406:3a0:509::2e",
+      "kavlan-21": "2001:660:4406:6a0:509::2e",
+      "kavlan-3": "2001:660:4406:582:9::2e",
+      "kavlan-4": "2001:660:4406:590:9::2e",
+      "kavlan-5": "2001:660:4406:591:9::2e",
+      "kavlan-6": "2001:660:4406:592:9::2e",
+      "kavlan-7": "2001:660:4406:593:9::2e",
+      "kavlan-8": "2001:660:4406:594:9::2e",
+      "kavlan-9": "2001:660:4406:595:9::2e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::2e",
-      "kavlan-11": "2001:660:4406:1a0:509:1::2e",
-      "kavlan-12": "2001:660:4406:2a0:509:1::2e",
-      "kavlan-13": "2001:660:4406:4a0:509:1::2e",
-      "kavlan-14": "2001:660:4406:5a0:509:1::2e",
-      "kavlan-16": "2001:660:4406:7a0:509:1::2e",
-      "kavlan-18": "2001:660:4406:8a0:509:1::2e",
-      "kavlan-2": "2001:660:4406:581:9:1::2e",
-      "kavlan-20": "2001:660:4406:3a0:509:1::2e",
-      "kavlan-21": "2001:660:4406:6a0:509:1::2e",
-      "kavlan-3": "2001:660:4406:582:9:1::2e",
-      "kavlan-4": "2001:660:4406:590:9:1::2e",
-      "kavlan-5": "2001:660:4406:591:9:1::2e",
-      "kavlan-6": "2001:660:4406:592:9:1::2e",
-      "kavlan-7": "2001:660:4406:593:9:1::2e",
-      "kavlan-8": "2001:660:4406:594:9:1::2e",
-      "kavlan-9": "2001:660:4406:595:9:1::2e"
+      "kavlan-1": "2001:660:4406:580:9:1:0:2e",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:2e",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:2e",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:2e",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:2e",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:2e",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:2e",
+      "kavlan-2": "2001:660:4406:581:9:1:0:2e",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:2e",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:2e",
+      "kavlan-3": "2001:660:4406:582:9:1:0:2e",
+      "kavlan-4": "2001:660:4406:590:9:1:0:2e",
+      "kavlan-5": "2001:660:4406:591:9:1:0:2e",
+      "kavlan-6": "2001:660:4406:592:9:1:0:2e",
+      "kavlan-7": "2001:660:4406:593:9:1:0:2e",
+      "kavlan-8": "2001:660:4406:594:9:1:0:2e",
+      "kavlan-9": "2001:660:4406:595:9:1:0:2e"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::2e",
-      "kavlan-11": "2001:660:4406:1a0:509:2::2e",
-      "kavlan-12": "2001:660:4406:2a0:509:2::2e",
-      "kavlan-13": "2001:660:4406:4a0:509:2::2e",
-      "kavlan-14": "2001:660:4406:5a0:509:2::2e",
-      "kavlan-16": "2001:660:4406:7a0:509:2::2e",
-      "kavlan-18": "2001:660:4406:8a0:509:2::2e",
-      "kavlan-2": "2001:660:4406:581:9:2::2e",
-      "kavlan-20": "2001:660:4406:3a0:509:2::2e",
-      "kavlan-21": "2001:660:4406:6a0:509:2::2e",
-      "kavlan-3": "2001:660:4406:582:9:2::2e",
-      "kavlan-4": "2001:660:4406:590:9:2::2e",
-      "kavlan-5": "2001:660:4406:591:9:2::2e",
-      "kavlan-6": "2001:660:4406:592:9:2::2e",
-      "kavlan-7": "2001:660:4406:593:9:2::2e",
-      "kavlan-8": "2001:660:4406:594:9:2::2e",
-      "kavlan-9": "2001:660:4406:595:9:2::2e"
+      "kavlan-1": "2001:660:4406:580:9:2:0:2e",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:2e",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:2e",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:2e",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:2e",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:2e",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:2e",
+      "kavlan-2": "2001:660:4406:581:9:2:0:2e",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:2e",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:2e",
+      "kavlan-3": "2001:660:4406:582:9:2:0:2e",
+      "kavlan-4": "2001:660:4406:590:9:2:0:2e",
+      "kavlan-5": "2001:660:4406:591:9:2:0:2e",
+      "kavlan-6": "2001:660:4406:592:9:2:0:2e",
+      "kavlan-7": "2001:660:4406:593:9:2:0:2e",
+      "kavlan-8": "2001:660:4406:594:9:2:0:2e",
+      "kavlan-9": "2001:660:4406:595:9:2:0:2e"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::2e",
-      "kavlan-11": "2001:660:4406:1a0:509:3::2e",
-      "kavlan-12": "2001:660:4406:2a0:509:3::2e",
-      "kavlan-13": "2001:660:4406:4a0:509:3::2e",
-      "kavlan-14": "2001:660:4406:5a0:509:3::2e",
-      "kavlan-16": "2001:660:4406:7a0:509:3::2e",
-      "kavlan-18": "2001:660:4406:8a0:509:3::2e",
-      "kavlan-2": "2001:660:4406:581:9:3::2e",
-      "kavlan-20": "2001:660:4406:3a0:509:3::2e",
-      "kavlan-21": "2001:660:4406:6a0:509:3::2e",
-      "kavlan-3": "2001:660:4406:582:9:3::2e",
-      "kavlan-4": "2001:660:4406:590:9:3::2e",
-      "kavlan-5": "2001:660:4406:591:9:3::2e",
-      "kavlan-6": "2001:660:4406:592:9:3::2e",
-      "kavlan-7": "2001:660:4406:593:9:3::2e",
-      "kavlan-8": "2001:660:4406:594:9:3::2e",
-      "kavlan-9": "2001:660:4406:595:9:3::2e"
+      "kavlan-1": "2001:660:4406:580:9:3:0:2e",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:2e",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:2e",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:2e",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:2e",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:2e",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:2e",
+      "kavlan-2": "2001:660:4406:581:9:3:0:2e",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:2e",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:2e",
+      "kavlan-3": "2001:660:4406:582:9:3:0:2e",
+      "kavlan-4": "2001:660:4406:590:9:3:0:2e",
+      "kavlan-5": "2001:660:4406:591:9:3:0:2e",
+      "kavlan-6": "2001:660:4406:592:9:3:0:2e",
+      "kavlan-7": "2001:660:4406:593:9:3:0:2e",
+      "kavlan-8": "2001:660:4406:594:9:3:0:2e",
+      "kavlan-9": "2001:660:4406:595:9:3:0:2e"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::2e",
-      "kavlan-11": "2001:660:4406:1a0:509:4::2e",
-      "kavlan-12": "2001:660:4406:2a0:509:4::2e",
-      "kavlan-13": "2001:660:4406:4a0:509:4::2e",
-      "kavlan-14": "2001:660:4406:5a0:509:4::2e",
-      "kavlan-16": "2001:660:4406:7a0:509:4::2e",
-      "kavlan-18": "2001:660:4406:8a0:509:4::2e",
-      "kavlan-2": "2001:660:4406:581:9:4::2e",
-      "kavlan-20": "2001:660:4406:3a0:509:4::2e",
-      "kavlan-21": "2001:660:4406:6a0:509:4::2e",
-      "kavlan-3": "2001:660:4406:582:9:4::2e",
-      "kavlan-4": "2001:660:4406:590:9:4::2e",
-      "kavlan-5": "2001:660:4406:591:9:4::2e",
-      "kavlan-6": "2001:660:4406:592:9:4::2e",
-      "kavlan-7": "2001:660:4406:593:9:4::2e",
-      "kavlan-8": "2001:660:4406:594:9:4::2e",
-      "kavlan-9": "2001:660:4406:595:9:4::2e"
+      "kavlan-1": "2001:660:4406:580:9:4:0:2e",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:2e",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:2e",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:2e",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:2e",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:2e",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:2e",
+      "kavlan-2": "2001:660:4406:581:9:4:0:2e",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:2e",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:2e",
+      "kavlan-3": "2001:660:4406:582:9:4:0:2e",
+      "kavlan-4": "2001:660:4406:590:9:4:0:2e",
+      "kavlan-5": "2001:660:4406:591:9:4:0:2e",
+      "kavlan-6": "2001:660:4406:592:9:4:0:2e",
+      "kavlan-7": "2001:660:4406:593:9:4:0:2e",
+      "kavlan-8": "2001:660:4406:594:9:4:0:2e",
+      "kavlan-9": "2001:660:4406:595:9:4:0:2e"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.46",
-      "ip6": "2001:660:4406:500:9:0::2e",
+      "ip6": "2001:660:4406:500:9::2e",
       "kavlan": true,
       "mac": "24:6e:96:03:10:18",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.146",
-      "ip6": "2001:660:4406:500:9:1::2e",
+      "ip6": "2001:660:4406:500:9:1:0:2e",
       "kavlan": true,
       "mac": "24:6e:96:03:10:1a",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.246",
-      "ip6": "2001:660:4406:500:9:2::2e",
+      "ip6": "2001:660:4406:500:9:2:0:2e",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4d:e0",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.146",
-      "ip6": "2001:660:4406:500:9:3::2e",
+      "ip6": "2001:660:4406:500:9:3:0:2e",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4d:e2",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.246",
-      "ip6": "2001:660:4406:500:9:4::2e",
+      "ip6": "2001:660:4406:500:9:4:0:2e",
       "kavlan": true,
       "mac": "24:6e:96:03:10:1c",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-47.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-47.json
index 980f4f0e1344ad77a3da2e1ac1330c03402afa0c..80459e6d478435a7ca65a9c27f17292bad2f9ab9 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-47.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-47.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::2f",
-      "kavlan-11": "2001:660:4406:1a0:509:0::2f",
-      "kavlan-12": "2001:660:4406:2a0:509:0::2f",
-      "kavlan-13": "2001:660:4406:4a0:509:0::2f",
-      "kavlan-14": "2001:660:4406:5a0:509:0::2f",
-      "kavlan-16": "2001:660:4406:7a0:509:0::2f",
-      "kavlan-18": "2001:660:4406:8a0:509:0::2f",
-      "kavlan-2": "2001:660:4406:581:9:0::2f",
-      "kavlan-20": "2001:660:4406:3a0:509:0::2f",
-      "kavlan-21": "2001:660:4406:6a0:509:0::2f",
-      "kavlan-3": "2001:660:4406:582:9:0::2f",
-      "kavlan-4": "2001:660:4406:590:9:0::2f",
-      "kavlan-5": "2001:660:4406:591:9:0::2f",
-      "kavlan-6": "2001:660:4406:592:9:0::2f",
-      "kavlan-7": "2001:660:4406:593:9:0::2f",
-      "kavlan-8": "2001:660:4406:594:9:0::2f",
-      "kavlan-9": "2001:660:4406:595:9:0::2f"
+      "kavlan-1": "2001:660:4406:580:9::2f",
+      "kavlan-11": "2001:660:4406:1a0:509::2f",
+      "kavlan-12": "2001:660:4406:2a0:509::2f",
+      "kavlan-13": "2001:660:4406:4a0:509::2f",
+      "kavlan-14": "2001:660:4406:5a0:509::2f",
+      "kavlan-16": "2001:660:4406:7a0:509::2f",
+      "kavlan-18": "2001:660:4406:8a0:509::2f",
+      "kavlan-2": "2001:660:4406:581:9::2f",
+      "kavlan-20": "2001:660:4406:3a0:509::2f",
+      "kavlan-21": "2001:660:4406:6a0:509::2f",
+      "kavlan-3": "2001:660:4406:582:9::2f",
+      "kavlan-4": "2001:660:4406:590:9::2f",
+      "kavlan-5": "2001:660:4406:591:9::2f",
+      "kavlan-6": "2001:660:4406:592:9::2f",
+      "kavlan-7": "2001:660:4406:593:9::2f",
+      "kavlan-8": "2001:660:4406:594:9::2f",
+      "kavlan-9": "2001:660:4406:595:9::2f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::2f",
-      "kavlan-11": "2001:660:4406:1a0:509:1::2f",
-      "kavlan-12": "2001:660:4406:2a0:509:1::2f",
-      "kavlan-13": "2001:660:4406:4a0:509:1::2f",
-      "kavlan-14": "2001:660:4406:5a0:509:1::2f",
-      "kavlan-16": "2001:660:4406:7a0:509:1::2f",
-      "kavlan-18": "2001:660:4406:8a0:509:1::2f",
-      "kavlan-2": "2001:660:4406:581:9:1::2f",
-      "kavlan-20": "2001:660:4406:3a0:509:1::2f",
-      "kavlan-21": "2001:660:4406:6a0:509:1::2f",
-      "kavlan-3": "2001:660:4406:582:9:1::2f",
-      "kavlan-4": "2001:660:4406:590:9:1::2f",
-      "kavlan-5": "2001:660:4406:591:9:1::2f",
-      "kavlan-6": "2001:660:4406:592:9:1::2f",
-      "kavlan-7": "2001:660:4406:593:9:1::2f",
-      "kavlan-8": "2001:660:4406:594:9:1::2f",
-      "kavlan-9": "2001:660:4406:595:9:1::2f"
+      "kavlan-1": "2001:660:4406:580:9:1:0:2f",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:2f",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:2f",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:2f",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:2f",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:2f",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:2f",
+      "kavlan-2": "2001:660:4406:581:9:1:0:2f",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:2f",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:2f",
+      "kavlan-3": "2001:660:4406:582:9:1:0:2f",
+      "kavlan-4": "2001:660:4406:590:9:1:0:2f",
+      "kavlan-5": "2001:660:4406:591:9:1:0:2f",
+      "kavlan-6": "2001:660:4406:592:9:1:0:2f",
+      "kavlan-7": "2001:660:4406:593:9:1:0:2f",
+      "kavlan-8": "2001:660:4406:594:9:1:0:2f",
+      "kavlan-9": "2001:660:4406:595:9:1:0:2f"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::2f",
-      "kavlan-11": "2001:660:4406:1a0:509:2::2f",
-      "kavlan-12": "2001:660:4406:2a0:509:2::2f",
-      "kavlan-13": "2001:660:4406:4a0:509:2::2f",
-      "kavlan-14": "2001:660:4406:5a0:509:2::2f",
-      "kavlan-16": "2001:660:4406:7a0:509:2::2f",
-      "kavlan-18": "2001:660:4406:8a0:509:2::2f",
-      "kavlan-2": "2001:660:4406:581:9:2::2f",
-      "kavlan-20": "2001:660:4406:3a0:509:2::2f",
-      "kavlan-21": "2001:660:4406:6a0:509:2::2f",
-      "kavlan-3": "2001:660:4406:582:9:2::2f",
-      "kavlan-4": "2001:660:4406:590:9:2::2f",
-      "kavlan-5": "2001:660:4406:591:9:2::2f",
-      "kavlan-6": "2001:660:4406:592:9:2::2f",
-      "kavlan-7": "2001:660:4406:593:9:2::2f",
-      "kavlan-8": "2001:660:4406:594:9:2::2f",
-      "kavlan-9": "2001:660:4406:595:9:2::2f"
+      "kavlan-1": "2001:660:4406:580:9:2:0:2f",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:2f",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:2f",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:2f",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:2f",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:2f",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:2f",
+      "kavlan-2": "2001:660:4406:581:9:2:0:2f",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:2f",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:2f",
+      "kavlan-3": "2001:660:4406:582:9:2:0:2f",
+      "kavlan-4": "2001:660:4406:590:9:2:0:2f",
+      "kavlan-5": "2001:660:4406:591:9:2:0:2f",
+      "kavlan-6": "2001:660:4406:592:9:2:0:2f",
+      "kavlan-7": "2001:660:4406:593:9:2:0:2f",
+      "kavlan-8": "2001:660:4406:594:9:2:0:2f",
+      "kavlan-9": "2001:660:4406:595:9:2:0:2f"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::2f",
-      "kavlan-11": "2001:660:4406:1a0:509:3::2f",
-      "kavlan-12": "2001:660:4406:2a0:509:3::2f",
-      "kavlan-13": "2001:660:4406:4a0:509:3::2f",
-      "kavlan-14": "2001:660:4406:5a0:509:3::2f",
-      "kavlan-16": "2001:660:4406:7a0:509:3::2f",
-      "kavlan-18": "2001:660:4406:8a0:509:3::2f",
-      "kavlan-2": "2001:660:4406:581:9:3::2f",
-      "kavlan-20": "2001:660:4406:3a0:509:3::2f",
-      "kavlan-21": "2001:660:4406:6a0:509:3::2f",
-      "kavlan-3": "2001:660:4406:582:9:3::2f",
-      "kavlan-4": "2001:660:4406:590:9:3::2f",
-      "kavlan-5": "2001:660:4406:591:9:3::2f",
-      "kavlan-6": "2001:660:4406:592:9:3::2f",
-      "kavlan-7": "2001:660:4406:593:9:3::2f",
-      "kavlan-8": "2001:660:4406:594:9:3::2f",
-      "kavlan-9": "2001:660:4406:595:9:3::2f"
+      "kavlan-1": "2001:660:4406:580:9:3:0:2f",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:2f",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:2f",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:2f",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:2f",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:2f",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:2f",
+      "kavlan-2": "2001:660:4406:581:9:3:0:2f",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:2f",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:2f",
+      "kavlan-3": "2001:660:4406:582:9:3:0:2f",
+      "kavlan-4": "2001:660:4406:590:9:3:0:2f",
+      "kavlan-5": "2001:660:4406:591:9:3:0:2f",
+      "kavlan-6": "2001:660:4406:592:9:3:0:2f",
+      "kavlan-7": "2001:660:4406:593:9:3:0:2f",
+      "kavlan-8": "2001:660:4406:594:9:3:0:2f",
+      "kavlan-9": "2001:660:4406:595:9:3:0:2f"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::2f",
-      "kavlan-11": "2001:660:4406:1a0:509:4::2f",
-      "kavlan-12": "2001:660:4406:2a0:509:4::2f",
-      "kavlan-13": "2001:660:4406:4a0:509:4::2f",
-      "kavlan-14": "2001:660:4406:5a0:509:4::2f",
-      "kavlan-16": "2001:660:4406:7a0:509:4::2f",
-      "kavlan-18": "2001:660:4406:8a0:509:4::2f",
-      "kavlan-2": "2001:660:4406:581:9:4::2f",
-      "kavlan-20": "2001:660:4406:3a0:509:4::2f",
-      "kavlan-21": "2001:660:4406:6a0:509:4::2f",
-      "kavlan-3": "2001:660:4406:582:9:4::2f",
-      "kavlan-4": "2001:660:4406:590:9:4::2f",
-      "kavlan-5": "2001:660:4406:591:9:4::2f",
-      "kavlan-6": "2001:660:4406:592:9:4::2f",
-      "kavlan-7": "2001:660:4406:593:9:4::2f",
-      "kavlan-8": "2001:660:4406:594:9:4::2f",
-      "kavlan-9": "2001:660:4406:595:9:4::2f"
+      "kavlan-1": "2001:660:4406:580:9:4:0:2f",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:2f",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:2f",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:2f",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:2f",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:2f",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:2f",
+      "kavlan-2": "2001:660:4406:581:9:4:0:2f",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:2f",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:2f",
+      "kavlan-3": "2001:660:4406:582:9:4:0:2f",
+      "kavlan-4": "2001:660:4406:590:9:4:0:2f",
+      "kavlan-5": "2001:660:4406:591:9:4:0:2f",
+      "kavlan-6": "2001:660:4406:592:9:4:0:2f",
+      "kavlan-7": "2001:660:4406:593:9:4:0:2f",
+      "kavlan-8": "2001:660:4406:594:9:4:0:2f",
+      "kavlan-9": "2001:660:4406:595:9:4:0:2f"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.47",
-      "ip6": "2001:660:4406:500:9:0::2f",
+      "ip6": "2001:660:4406:500:9::2f",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:40",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.147",
-      "ip6": "2001:660:4406:500:9:1::2f",
+      "ip6": "2001:660:4406:500:9:1:0:2f",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:42",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.247",
-      "ip6": "2001:660:4406:500:9:2::2f",
+      "ip6": "2001:660:4406:500:9:2:0:2f",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4a:48",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.147",
-      "ip6": "2001:660:4406:500:9:3::2f",
+      "ip6": "2001:660:4406:500:9:3:0:2f",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4a:4a",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.247",
-      "ip6": "2001:660:4406:500:9:4::2f",
+      "ip6": "2001:660:4406:500:9:4:0:2f",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:44",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-48.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-48.json
index 8aa4a162b97cdb649ad27a3b303a5e6d529052ce..01505e6b1cd934e96652eeca89e0a9ff2efe60b3 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-48.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-48.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::30",
-      "kavlan-11": "2001:660:4406:1a0:509:0::30",
-      "kavlan-12": "2001:660:4406:2a0:509:0::30",
-      "kavlan-13": "2001:660:4406:4a0:509:0::30",
-      "kavlan-14": "2001:660:4406:5a0:509:0::30",
-      "kavlan-16": "2001:660:4406:7a0:509:0::30",
-      "kavlan-18": "2001:660:4406:8a0:509:0::30",
-      "kavlan-2": "2001:660:4406:581:9:0::30",
-      "kavlan-20": "2001:660:4406:3a0:509:0::30",
-      "kavlan-21": "2001:660:4406:6a0:509:0::30",
-      "kavlan-3": "2001:660:4406:582:9:0::30",
-      "kavlan-4": "2001:660:4406:590:9:0::30",
-      "kavlan-5": "2001:660:4406:591:9:0::30",
-      "kavlan-6": "2001:660:4406:592:9:0::30",
-      "kavlan-7": "2001:660:4406:593:9:0::30",
-      "kavlan-8": "2001:660:4406:594:9:0::30",
-      "kavlan-9": "2001:660:4406:595:9:0::30"
+      "kavlan-1": "2001:660:4406:580:9::30",
+      "kavlan-11": "2001:660:4406:1a0:509::30",
+      "kavlan-12": "2001:660:4406:2a0:509::30",
+      "kavlan-13": "2001:660:4406:4a0:509::30",
+      "kavlan-14": "2001:660:4406:5a0:509::30",
+      "kavlan-16": "2001:660:4406:7a0:509::30",
+      "kavlan-18": "2001:660:4406:8a0:509::30",
+      "kavlan-2": "2001:660:4406:581:9::30",
+      "kavlan-20": "2001:660:4406:3a0:509::30",
+      "kavlan-21": "2001:660:4406:6a0:509::30",
+      "kavlan-3": "2001:660:4406:582:9::30",
+      "kavlan-4": "2001:660:4406:590:9::30",
+      "kavlan-5": "2001:660:4406:591:9::30",
+      "kavlan-6": "2001:660:4406:592:9::30",
+      "kavlan-7": "2001:660:4406:593:9::30",
+      "kavlan-8": "2001:660:4406:594:9::30",
+      "kavlan-9": "2001:660:4406:595:9::30"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::30",
-      "kavlan-11": "2001:660:4406:1a0:509:1::30",
-      "kavlan-12": "2001:660:4406:2a0:509:1::30",
-      "kavlan-13": "2001:660:4406:4a0:509:1::30",
-      "kavlan-14": "2001:660:4406:5a0:509:1::30",
-      "kavlan-16": "2001:660:4406:7a0:509:1::30",
-      "kavlan-18": "2001:660:4406:8a0:509:1::30",
-      "kavlan-2": "2001:660:4406:581:9:1::30",
-      "kavlan-20": "2001:660:4406:3a0:509:1::30",
-      "kavlan-21": "2001:660:4406:6a0:509:1::30",
-      "kavlan-3": "2001:660:4406:582:9:1::30",
-      "kavlan-4": "2001:660:4406:590:9:1::30",
-      "kavlan-5": "2001:660:4406:591:9:1::30",
-      "kavlan-6": "2001:660:4406:592:9:1::30",
-      "kavlan-7": "2001:660:4406:593:9:1::30",
-      "kavlan-8": "2001:660:4406:594:9:1::30",
-      "kavlan-9": "2001:660:4406:595:9:1::30"
+      "kavlan-1": "2001:660:4406:580:9:1:0:30",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:30",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:30",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:30",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:30",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:30",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:30",
+      "kavlan-2": "2001:660:4406:581:9:1:0:30",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:30",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:30",
+      "kavlan-3": "2001:660:4406:582:9:1:0:30",
+      "kavlan-4": "2001:660:4406:590:9:1:0:30",
+      "kavlan-5": "2001:660:4406:591:9:1:0:30",
+      "kavlan-6": "2001:660:4406:592:9:1:0:30",
+      "kavlan-7": "2001:660:4406:593:9:1:0:30",
+      "kavlan-8": "2001:660:4406:594:9:1:0:30",
+      "kavlan-9": "2001:660:4406:595:9:1:0:30"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::30",
-      "kavlan-11": "2001:660:4406:1a0:509:2::30",
-      "kavlan-12": "2001:660:4406:2a0:509:2::30",
-      "kavlan-13": "2001:660:4406:4a0:509:2::30",
-      "kavlan-14": "2001:660:4406:5a0:509:2::30",
-      "kavlan-16": "2001:660:4406:7a0:509:2::30",
-      "kavlan-18": "2001:660:4406:8a0:509:2::30",
-      "kavlan-2": "2001:660:4406:581:9:2::30",
-      "kavlan-20": "2001:660:4406:3a0:509:2::30",
-      "kavlan-21": "2001:660:4406:6a0:509:2::30",
-      "kavlan-3": "2001:660:4406:582:9:2::30",
-      "kavlan-4": "2001:660:4406:590:9:2::30",
-      "kavlan-5": "2001:660:4406:591:9:2::30",
-      "kavlan-6": "2001:660:4406:592:9:2::30",
-      "kavlan-7": "2001:660:4406:593:9:2::30",
-      "kavlan-8": "2001:660:4406:594:9:2::30",
-      "kavlan-9": "2001:660:4406:595:9:2::30"
+      "kavlan-1": "2001:660:4406:580:9:2:0:30",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:30",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:30",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:30",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:30",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:30",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:30",
+      "kavlan-2": "2001:660:4406:581:9:2:0:30",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:30",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:30",
+      "kavlan-3": "2001:660:4406:582:9:2:0:30",
+      "kavlan-4": "2001:660:4406:590:9:2:0:30",
+      "kavlan-5": "2001:660:4406:591:9:2:0:30",
+      "kavlan-6": "2001:660:4406:592:9:2:0:30",
+      "kavlan-7": "2001:660:4406:593:9:2:0:30",
+      "kavlan-8": "2001:660:4406:594:9:2:0:30",
+      "kavlan-9": "2001:660:4406:595:9:2:0:30"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::30",
-      "kavlan-11": "2001:660:4406:1a0:509:3::30",
-      "kavlan-12": "2001:660:4406:2a0:509:3::30",
-      "kavlan-13": "2001:660:4406:4a0:509:3::30",
-      "kavlan-14": "2001:660:4406:5a0:509:3::30",
-      "kavlan-16": "2001:660:4406:7a0:509:3::30",
-      "kavlan-18": "2001:660:4406:8a0:509:3::30",
-      "kavlan-2": "2001:660:4406:581:9:3::30",
-      "kavlan-20": "2001:660:4406:3a0:509:3::30",
-      "kavlan-21": "2001:660:4406:6a0:509:3::30",
-      "kavlan-3": "2001:660:4406:582:9:3::30",
-      "kavlan-4": "2001:660:4406:590:9:3::30",
-      "kavlan-5": "2001:660:4406:591:9:3::30",
-      "kavlan-6": "2001:660:4406:592:9:3::30",
-      "kavlan-7": "2001:660:4406:593:9:3::30",
-      "kavlan-8": "2001:660:4406:594:9:3::30",
-      "kavlan-9": "2001:660:4406:595:9:3::30"
+      "kavlan-1": "2001:660:4406:580:9:3:0:30",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:30",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:30",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:30",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:30",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:30",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:30",
+      "kavlan-2": "2001:660:4406:581:9:3:0:30",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:30",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:30",
+      "kavlan-3": "2001:660:4406:582:9:3:0:30",
+      "kavlan-4": "2001:660:4406:590:9:3:0:30",
+      "kavlan-5": "2001:660:4406:591:9:3:0:30",
+      "kavlan-6": "2001:660:4406:592:9:3:0:30",
+      "kavlan-7": "2001:660:4406:593:9:3:0:30",
+      "kavlan-8": "2001:660:4406:594:9:3:0:30",
+      "kavlan-9": "2001:660:4406:595:9:3:0:30"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::30",
-      "kavlan-11": "2001:660:4406:1a0:509:4::30",
-      "kavlan-12": "2001:660:4406:2a0:509:4::30",
-      "kavlan-13": "2001:660:4406:4a0:509:4::30",
-      "kavlan-14": "2001:660:4406:5a0:509:4::30",
-      "kavlan-16": "2001:660:4406:7a0:509:4::30",
-      "kavlan-18": "2001:660:4406:8a0:509:4::30",
-      "kavlan-2": "2001:660:4406:581:9:4::30",
-      "kavlan-20": "2001:660:4406:3a0:509:4::30",
-      "kavlan-21": "2001:660:4406:6a0:509:4::30",
-      "kavlan-3": "2001:660:4406:582:9:4::30",
-      "kavlan-4": "2001:660:4406:590:9:4::30",
-      "kavlan-5": "2001:660:4406:591:9:4::30",
-      "kavlan-6": "2001:660:4406:592:9:4::30",
-      "kavlan-7": "2001:660:4406:593:9:4::30",
-      "kavlan-8": "2001:660:4406:594:9:4::30",
-      "kavlan-9": "2001:660:4406:595:9:4::30"
+      "kavlan-1": "2001:660:4406:580:9:4:0:30",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:30",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:30",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:30",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:30",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:30",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:30",
+      "kavlan-2": "2001:660:4406:581:9:4:0:30",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:30",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:30",
+      "kavlan-3": "2001:660:4406:582:9:4:0:30",
+      "kavlan-4": "2001:660:4406:590:9:4:0:30",
+      "kavlan-5": "2001:660:4406:591:9:4:0:30",
+      "kavlan-6": "2001:660:4406:592:9:4:0:30",
+      "kavlan-7": "2001:660:4406:593:9:4:0:30",
+      "kavlan-8": "2001:660:4406:594:9:4:0:30",
+      "kavlan-9": "2001:660:4406:595:9:4:0:30"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.48",
-      "ip6": "2001:660:4406:500:9:0::30",
+      "ip6": "2001:660:4406:500:9::30",
       "kavlan": true,
       "mac": "24:6e:96:03:0d:50",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.148",
-      "ip6": "2001:660:4406:500:9:1::30",
+      "ip6": "2001:660:4406:500:9:1:0:30",
       "kavlan": true,
       "mac": "24:6e:96:03:0d:52",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.248",
-      "ip6": "2001:660:4406:500:9:2::30",
+      "ip6": "2001:660:4406:500:9:2:0:30",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:c8",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.148",
-      "ip6": "2001:660:4406:500:9:3::30",
+      "ip6": "2001:660:4406:500:9:3:0:30",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:ca",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.248",
-      "ip6": "2001:660:4406:500:9:4::30",
+      "ip6": "2001:660:4406:500:9:4:0:30",
       "kavlan": true,
       "mac": "24:6e:96:03:0d:54",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-49.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-49.json
index 026a77da4b285c99deeccb5c47068e9de977d039..45af5211b5f5665f946b48e44e80de1bc76b9546 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-49.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-49.json
@@ -98,80 +98,80 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::31",
-      "kavlan-11": "2001:660:4406:1a0:509:0::31",
-      "kavlan-12": "2001:660:4406:2a0:509:0::31",
-      "kavlan-13": "2001:660:4406:4a0:509:0::31",
-      "kavlan-14": "2001:660:4406:5a0:509:0::31",
-      "kavlan-16": "2001:660:4406:7a0:509:0::31",
-      "kavlan-18": "2001:660:4406:8a0:509:0::31",
-      "kavlan-2": "2001:660:4406:581:9:0::31",
-      "kavlan-20": "2001:660:4406:3a0:509:0::31",
-      "kavlan-21": "2001:660:4406:6a0:509:0::31",
-      "kavlan-3": "2001:660:4406:582:9:0::31",
-      "kavlan-4": "2001:660:4406:590:9:0::31",
-      "kavlan-5": "2001:660:4406:591:9:0::31",
-      "kavlan-6": "2001:660:4406:592:9:0::31",
-      "kavlan-7": "2001:660:4406:593:9:0::31",
-      "kavlan-8": "2001:660:4406:594:9:0::31",
-      "kavlan-9": "2001:660:4406:595:9:0::31"
+      "kavlan-1": "2001:660:4406:580:9::31",
+      "kavlan-11": "2001:660:4406:1a0:509::31",
+      "kavlan-12": "2001:660:4406:2a0:509::31",
+      "kavlan-13": "2001:660:4406:4a0:509::31",
+      "kavlan-14": "2001:660:4406:5a0:509::31",
+      "kavlan-16": "2001:660:4406:7a0:509::31",
+      "kavlan-18": "2001:660:4406:8a0:509::31",
+      "kavlan-2": "2001:660:4406:581:9::31",
+      "kavlan-20": "2001:660:4406:3a0:509::31",
+      "kavlan-21": "2001:660:4406:6a0:509::31",
+      "kavlan-3": "2001:660:4406:582:9::31",
+      "kavlan-4": "2001:660:4406:590:9::31",
+      "kavlan-5": "2001:660:4406:591:9::31",
+      "kavlan-6": "2001:660:4406:592:9::31",
+      "kavlan-7": "2001:660:4406:593:9::31",
+      "kavlan-8": "2001:660:4406:594:9::31",
+      "kavlan-9": "2001:660:4406:595:9::31"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::31",
-      "kavlan-11": "2001:660:4406:1a0:509:1::31",
-      "kavlan-12": "2001:660:4406:2a0:509:1::31",
-      "kavlan-13": "2001:660:4406:4a0:509:1::31",
-      "kavlan-14": "2001:660:4406:5a0:509:1::31",
-      "kavlan-16": "2001:660:4406:7a0:509:1::31",
-      "kavlan-18": "2001:660:4406:8a0:509:1::31",
-      "kavlan-2": "2001:660:4406:581:9:1::31",
-      "kavlan-20": "2001:660:4406:3a0:509:1::31",
-      "kavlan-21": "2001:660:4406:6a0:509:1::31",
-      "kavlan-3": "2001:660:4406:582:9:1::31",
-      "kavlan-4": "2001:660:4406:590:9:1::31",
-      "kavlan-5": "2001:660:4406:591:9:1::31",
-      "kavlan-6": "2001:660:4406:592:9:1::31",
-      "kavlan-7": "2001:660:4406:593:9:1::31",
-      "kavlan-8": "2001:660:4406:594:9:1::31",
-      "kavlan-9": "2001:660:4406:595:9:1::31"
+      "kavlan-1": "2001:660:4406:580:9:1:0:31",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:31",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:31",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:31",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:31",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:31",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:31",
+      "kavlan-2": "2001:660:4406:581:9:1:0:31",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:31",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:31",
+      "kavlan-3": "2001:660:4406:582:9:1:0:31",
+      "kavlan-4": "2001:660:4406:590:9:1:0:31",
+      "kavlan-5": "2001:660:4406:591:9:1:0:31",
+      "kavlan-6": "2001:660:4406:592:9:1:0:31",
+      "kavlan-7": "2001:660:4406:593:9:1:0:31",
+      "kavlan-8": "2001:660:4406:594:9:1:0:31",
+      "kavlan-9": "2001:660:4406:595:9:1:0:31"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::31",
-      "kavlan-11": "2001:660:4406:1a0:509:2::31",
-      "kavlan-12": "2001:660:4406:2a0:509:2::31",
-      "kavlan-13": "2001:660:4406:4a0:509:2::31",
-      "kavlan-14": "2001:660:4406:5a0:509:2::31",
-      "kavlan-16": "2001:660:4406:7a0:509:2::31",
-      "kavlan-18": "2001:660:4406:8a0:509:2::31",
-      "kavlan-2": "2001:660:4406:581:9:2::31",
-      "kavlan-20": "2001:660:4406:3a0:509:2::31",
-      "kavlan-21": "2001:660:4406:6a0:509:2::31",
-      "kavlan-3": "2001:660:4406:582:9:2::31",
-      "kavlan-4": "2001:660:4406:590:9:2::31",
-      "kavlan-5": "2001:660:4406:591:9:2::31",
-      "kavlan-6": "2001:660:4406:592:9:2::31",
-      "kavlan-7": "2001:660:4406:593:9:2::31",
-      "kavlan-8": "2001:660:4406:594:9:2::31",
-      "kavlan-9": "2001:660:4406:595:9:2::31"
+      "kavlan-1": "2001:660:4406:580:9:2:0:31",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:31",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:31",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:31",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:31",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:31",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:31",
+      "kavlan-2": "2001:660:4406:581:9:2:0:31",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:31",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:31",
+      "kavlan-3": "2001:660:4406:582:9:2:0:31",
+      "kavlan-4": "2001:660:4406:590:9:2:0:31",
+      "kavlan-5": "2001:660:4406:591:9:2:0:31",
+      "kavlan-6": "2001:660:4406:592:9:2:0:31",
+      "kavlan-7": "2001:660:4406:593:9:2:0:31",
+      "kavlan-8": "2001:660:4406:594:9:2:0:31",
+      "kavlan-9": "2001:660:4406:595:9:2:0:31"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::31",
-      "kavlan-11": "2001:660:4406:1a0:509:3::31",
-      "kavlan-12": "2001:660:4406:2a0:509:3::31",
-      "kavlan-13": "2001:660:4406:4a0:509:3::31",
-      "kavlan-14": "2001:660:4406:5a0:509:3::31",
-      "kavlan-16": "2001:660:4406:7a0:509:3::31",
-      "kavlan-18": "2001:660:4406:8a0:509:3::31",
-      "kavlan-2": "2001:660:4406:581:9:3::31",
-      "kavlan-20": "2001:660:4406:3a0:509:3::31",
-      "kavlan-21": "2001:660:4406:6a0:509:3::31",
-      "kavlan-3": "2001:660:4406:582:9:3::31",
-      "kavlan-4": "2001:660:4406:590:9:3::31",
-      "kavlan-5": "2001:660:4406:591:9:3::31",
-      "kavlan-6": "2001:660:4406:592:9:3::31",
-      "kavlan-7": "2001:660:4406:593:9:3::31",
-      "kavlan-8": "2001:660:4406:594:9:3::31",
-      "kavlan-9": "2001:660:4406:595:9:3::31"
+      "kavlan-1": "2001:660:4406:580:9:3:0:31",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:31",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:31",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:31",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:31",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:31",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:31",
+      "kavlan-2": "2001:660:4406:581:9:3:0:31",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:31",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:31",
+      "kavlan-3": "2001:660:4406:582:9:3:0:31",
+      "kavlan-4": "2001:660:4406:590:9:3:0:31",
+      "kavlan-5": "2001:660:4406:591:9:3:0:31",
+      "kavlan-6": "2001:660:4406:592:9:3:0:31",
+      "kavlan-7": "2001:660:4406:593:9:3:0:31",
+      "kavlan-8": "2001:660:4406:594:9:3:0:31",
+      "kavlan-9": "2001:660:4406:595:9:3:0:31"
     }
   },
   "main_memory": {
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.49",
-      "ip6": "2001:660:4406:500:9:0::31",
+      "ip6": "2001:660:4406:500:9::31",
       "kavlan": true,
       "mac": "24:6e:96:03:0e:80",
       "management": false,
@@ -211,7 +211,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.149",
-      "ip6": "2001:660:4406:500:9:1::31",
+      "ip6": "2001:660:4406:500:9:1:0:31",
       "kavlan": true,
       "mac": "24:6e:96:03:0e:82",
       "management": false,
@@ -233,7 +233,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.249",
-      "ip6": "2001:660:4406:500:9:2::31",
+      "ip6": "2001:660:4406:500:9:2:0:31",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4d:cc",
       "management": false,
@@ -255,7 +255,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.149",
-      "ip6": "2001:660:4406:500:9:3::31",
+      "ip6": "2001:660:4406:500:9:3:0:31",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4d:ce",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-5.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-5.json
index 6b24fc27a82f6bb71618b10f39f41bf0411356f8..38d079316966981c2dbb1764626c645ded9ab3f0 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-5.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-5.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::5",
-      "kavlan-11": "2001:660:4406:1a0:509:0::5",
-      "kavlan-12": "2001:660:4406:2a0:509:0::5",
-      "kavlan-13": "2001:660:4406:4a0:509:0::5",
-      "kavlan-14": "2001:660:4406:5a0:509:0::5",
-      "kavlan-16": "2001:660:4406:7a0:509:0::5",
-      "kavlan-18": "2001:660:4406:8a0:509:0::5",
-      "kavlan-2": "2001:660:4406:581:9:0::5",
-      "kavlan-20": "2001:660:4406:3a0:509:0::5",
-      "kavlan-21": "2001:660:4406:6a0:509:0::5",
-      "kavlan-3": "2001:660:4406:582:9:0::5",
-      "kavlan-4": "2001:660:4406:590:9:0::5",
-      "kavlan-5": "2001:660:4406:591:9:0::5",
-      "kavlan-6": "2001:660:4406:592:9:0::5",
-      "kavlan-7": "2001:660:4406:593:9:0::5",
-      "kavlan-8": "2001:660:4406:594:9:0::5",
-      "kavlan-9": "2001:660:4406:595:9:0::5"
+      "kavlan-1": "2001:660:4406:580:9::5",
+      "kavlan-11": "2001:660:4406:1a0:509::5",
+      "kavlan-12": "2001:660:4406:2a0:509::5",
+      "kavlan-13": "2001:660:4406:4a0:509::5",
+      "kavlan-14": "2001:660:4406:5a0:509::5",
+      "kavlan-16": "2001:660:4406:7a0:509::5",
+      "kavlan-18": "2001:660:4406:8a0:509::5",
+      "kavlan-2": "2001:660:4406:581:9::5",
+      "kavlan-20": "2001:660:4406:3a0:509::5",
+      "kavlan-21": "2001:660:4406:6a0:509::5",
+      "kavlan-3": "2001:660:4406:582:9::5",
+      "kavlan-4": "2001:660:4406:590:9::5",
+      "kavlan-5": "2001:660:4406:591:9::5",
+      "kavlan-6": "2001:660:4406:592:9::5",
+      "kavlan-7": "2001:660:4406:593:9::5",
+      "kavlan-8": "2001:660:4406:594:9::5",
+      "kavlan-9": "2001:660:4406:595:9::5"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::5",
-      "kavlan-11": "2001:660:4406:1a0:509:1::5",
-      "kavlan-12": "2001:660:4406:2a0:509:1::5",
-      "kavlan-13": "2001:660:4406:4a0:509:1::5",
-      "kavlan-14": "2001:660:4406:5a0:509:1::5",
-      "kavlan-16": "2001:660:4406:7a0:509:1::5",
-      "kavlan-18": "2001:660:4406:8a0:509:1::5",
-      "kavlan-2": "2001:660:4406:581:9:1::5",
-      "kavlan-20": "2001:660:4406:3a0:509:1::5",
-      "kavlan-21": "2001:660:4406:6a0:509:1::5",
-      "kavlan-3": "2001:660:4406:582:9:1::5",
-      "kavlan-4": "2001:660:4406:590:9:1::5",
-      "kavlan-5": "2001:660:4406:591:9:1::5",
-      "kavlan-6": "2001:660:4406:592:9:1::5",
-      "kavlan-7": "2001:660:4406:593:9:1::5",
-      "kavlan-8": "2001:660:4406:594:9:1::5",
-      "kavlan-9": "2001:660:4406:595:9:1::5"
+      "kavlan-1": "2001:660:4406:580:9:1:0:5",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:5",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:5",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:5",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:5",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:5",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:5",
+      "kavlan-2": "2001:660:4406:581:9:1:0:5",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:5",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:5",
+      "kavlan-3": "2001:660:4406:582:9:1:0:5",
+      "kavlan-4": "2001:660:4406:590:9:1:0:5",
+      "kavlan-5": "2001:660:4406:591:9:1:0:5",
+      "kavlan-6": "2001:660:4406:592:9:1:0:5",
+      "kavlan-7": "2001:660:4406:593:9:1:0:5",
+      "kavlan-8": "2001:660:4406:594:9:1:0:5",
+      "kavlan-9": "2001:660:4406:595:9:1:0:5"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::5",
-      "kavlan-11": "2001:660:4406:1a0:509:2::5",
-      "kavlan-12": "2001:660:4406:2a0:509:2::5",
-      "kavlan-13": "2001:660:4406:4a0:509:2::5",
-      "kavlan-14": "2001:660:4406:5a0:509:2::5",
-      "kavlan-16": "2001:660:4406:7a0:509:2::5",
-      "kavlan-18": "2001:660:4406:8a0:509:2::5",
-      "kavlan-2": "2001:660:4406:581:9:2::5",
-      "kavlan-20": "2001:660:4406:3a0:509:2::5",
-      "kavlan-21": "2001:660:4406:6a0:509:2::5",
-      "kavlan-3": "2001:660:4406:582:9:2::5",
-      "kavlan-4": "2001:660:4406:590:9:2::5",
-      "kavlan-5": "2001:660:4406:591:9:2::5",
-      "kavlan-6": "2001:660:4406:592:9:2::5",
-      "kavlan-7": "2001:660:4406:593:9:2::5",
-      "kavlan-8": "2001:660:4406:594:9:2::5",
-      "kavlan-9": "2001:660:4406:595:9:2::5"
+      "kavlan-1": "2001:660:4406:580:9:2:0:5",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:5",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:5",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:5",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:5",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:5",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:5",
+      "kavlan-2": "2001:660:4406:581:9:2:0:5",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:5",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:5",
+      "kavlan-3": "2001:660:4406:582:9:2:0:5",
+      "kavlan-4": "2001:660:4406:590:9:2:0:5",
+      "kavlan-5": "2001:660:4406:591:9:2:0:5",
+      "kavlan-6": "2001:660:4406:592:9:2:0:5",
+      "kavlan-7": "2001:660:4406:593:9:2:0:5",
+      "kavlan-8": "2001:660:4406:594:9:2:0:5",
+      "kavlan-9": "2001:660:4406:595:9:2:0:5"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::5",
-      "kavlan-11": "2001:660:4406:1a0:509:3::5",
-      "kavlan-12": "2001:660:4406:2a0:509:3::5",
-      "kavlan-13": "2001:660:4406:4a0:509:3::5",
-      "kavlan-14": "2001:660:4406:5a0:509:3::5",
-      "kavlan-16": "2001:660:4406:7a0:509:3::5",
-      "kavlan-18": "2001:660:4406:8a0:509:3::5",
-      "kavlan-2": "2001:660:4406:581:9:3::5",
-      "kavlan-20": "2001:660:4406:3a0:509:3::5",
-      "kavlan-21": "2001:660:4406:6a0:509:3::5",
-      "kavlan-3": "2001:660:4406:582:9:3::5",
-      "kavlan-4": "2001:660:4406:590:9:3::5",
-      "kavlan-5": "2001:660:4406:591:9:3::5",
-      "kavlan-6": "2001:660:4406:592:9:3::5",
-      "kavlan-7": "2001:660:4406:593:9:3::5",
-      "kavlan-8": "2001:660:4406:594:9:3::5",
-      "kavlan-9": "2001:660:4406:595:9:3::5"
+      "kavlan-1": "2001:660:4406:580:9:3:0:5",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:5",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:5",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:5",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:5",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:5",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:5",
+      "kavlan-2": "2001:660:4406:581:9:3:0:5",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:5",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:5",
+      "kavlan-3": "2001:660:4406:582:9:3:0:5",
+      "kavlan-4": "2001:660:4406:590:9:3:0:5",
+      "kavlan-5": "2001:660:4406:591:9:3:0:5",
+      "kavlan-6": "2001:660:4406:592:9:3:0:5",
+      "kavlan-7": "2001:660:4406:593:9:3:0:5",
+      "kavlan-8": "2001:660:4406:594:9:3:0:5",
+      "kavlan-9": "2001:660:4406:595:9:3:0:5"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::5",
-      "kavlan-11": "2001:660:4406:1a0:509:4::5",
-      "kavlan-12": "2001:660:4406:2a0:509:4::5",
-      "kavlan-13": "2001:660:4406:4a0:509:4::5",
-      "kavlan-14": "2001:660:4406:5a0:509:4::5",
-      "kavlan-16": "2001:660:4406:7a0:509:4::5",
-      "kavlan-18": "2001:660:4406:8a0:509:4::5",
-      "kavlan-2": "2001:660:4406:581:9:4::5",
-      "kavlan-20": "2001:660:4406:3a0:509:4::5",
-      "kavlan-21": "2001:660:4406:6a0:509:4::5",
-      "kavlan-3": "2001:660:4406:582:9:4::5",
-      "kavlan-4": "2001:660:4406:590:9:4::5",
-      "kavlan-5": "2001:660:4406:591:9:4::5",
-      "kavlan-6": "2001:660:4406:592:9:4::5",
-      "kavlan-7": "2001:660:4406:593:9:4::5",
-      "kavlan-8": "2001:660:4406:594:9:4::5",
-      "kavlan-9": "2001:660:4406:595:9:4::5"
+      "kavlan-1": "2001:660:4406:580:9:4:0:5",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:5",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:5",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:5",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:5",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:5",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:5",
+      "kavlan-2": "2001:660:4406:581:9:4:0:5",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:5",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:5",
+      "kavlan-3": "2001:660:4406:582:9:4:0:5",
+      "kavlan-4": "2001:660:4406:590:9:4:0:5",
+      "kavlan-5": "2001:660:4406:591:9:4:0:5",
+      "kavlan-6": "2001:660:4406:592:9:4:0:5",
+      "kavlan-7": "2001:660:4406:593:9:4:0:5",
+      "kavlan-8": "2001:660:4406:594:9:4:0:5",
+      "kavlan-9": "2001:660:4406:595:9:4:0:5"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.5",
-      "ip6": "2001:660:4406:500:9:0::5",
+      "ip6": "2001:660:4406:500:9::5",
       "kavlan": true,
       "mac": "24:6e:96:02:a0:a8",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.105",
-      "ip6": "2001:660:4406:500:9:1::5",
+      "ip6": "2001:660:4406:500:9:1:0:5",
       "kavlan": true,
       "mac": "24:6e:96:02:a0:aa",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.205",
-      "ip6": "2001:660:4406:500:9:2::5",
+      "ip6": "2001:660:4406:500:9:2:0:5",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:50",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.105",
-      "ip6": "2001:660:4406:500:9:3::5",
+      "ip6": "2001:660:4406:500:9:3:0:5",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:52",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.205",
-      "ip6": "2001:660:4406:500:9:4::5",
+      "ip6": "2001:660:4406:500:9:4:0:5",
       "kavlan": true,
       "mac": "24:6e:96:02:a0:ac",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-50.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-50.json
index 934bd5472cf5fb1dea47a16c41f042a399a44975..709eea62c04612bcd552201b27e853a03f678075 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-50.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-50.json
@@ -98,80 +98,80 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::32",
-      "kavlan-11": "2001:660:4406:1a0:509:0::32",
-      "kavlan-12": "2001:660:4406:2a0:509:0::32",
-      "kavlan-13": "2001:660:4406:4a0:509:0::32",
-      "kavlan-14": "2001:660:4406:5a0:509:0::32",
-      "kavlan-16": "2001:660:4406:7a0:509:0::32",
-      "kavlan-18": "2001:660:4406:8a0:509:0::32",
-      "kavlan-2": "2001:660:4406:581:9:0::32",
-      "kavlan-20": "2001:660:4406:3a0:509:0::32",
-      "kavlan-21": "2001:660:4406:6a0:509:0::32",
-      "kavlan-3": "2001:660:4406:582:9:0::32",
-      "kavlan-4": "2001:660:4406:590:9:0::32",
-      "kavlan-5": "2001:660:4406:591:9:0::32",
-      "kavlan-6": "2001:660:4406:592:9:0::32",
-      "kavlan-7": "2001:660:4406:593:9:0::32",
-      "kavlan-8": "2001:660:4406:594:9:0::32",
-      "kavlan-9": "2001:660:4406:595:9:0::32"
+      "kavlan-1": "2001:660:4406:580:9::32",
+      "kavlan-11": "2001:660:4406:1a0:509::32",
+      "kavlan-12": "2001:660:4406:2a0:509::32",
+      "kavlan-13": "2001:660:4406:4a0:509::32",
+      "kavlan-14": "2001:660:4406:5a0:509::32",
+      "kavlan-16": "2001:660:4406:7a0:509::32",
+      "kavlan-18": "2001:660:4406:8a0:509::32",
+      "kavlan-2": "2001:660:4406:581:9::32",
+      "kavlan-20": "2001:660:4406:3a0:509::32",
+      "kavlan-21": "2001:660:4406:6a0:509::32",
+      "kavlan-3": "2001:660:4406:582:9::32",
+      "kavlan-4": "2001:660:4406:590:9::32",
+      "kavlan-5": "2001:660:4406:591:9::32",
+      "kavlan-6": "2001:660:4406:592:9::32",
+      "kavlan-7": "2001:660:4406:593:9::32",
+      "kavlan-8": "2001:660:4406:594:9::32",
+      "kavlan-9": "2001:660:4406:595:9::32"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::32",
-      "kavlan-11": "2001:660:4406:1a0:509:1::32",
-      "kavlan-12": "2001:660:4406:2a0:509:1::32",
-      "kavlan-13": "2001:660:4406:4a0:509:1::32",
-      "kavlan-14": "2001:660:4406:5a0:509:1::32",
-      "kavlan-16": "2001:660:4406:7a0:509:1::32",
-      "kavlan-18": "2001:660:4406:8a0:509:1::32",
-      "kavlan-2": "2001:660:4406:581:9:1::32",
-      "kavlan-20": "2001:660:4406:3a0:509:1::32",
-      "kavlan-21": "2001:660:4406:6a0:509:1::32",
-      "kavlan-3": "2001:660:4406:582:9:1::32",
-      "kavlan-4": "2001:660:4406:590:9:1::32",
-      "kavlan-5": "2001:660:4406:591:9:1::32",
-      "kavlan-6": "2001:660:4406:592:9:1::32",
-      "kavlan-7": "2001:660:4406:593:9:1::32",
-      "kavlan-8": "2001:660:4406:594:9:1::32",
-      "kavlan-9": "2001:660:4406:595:9:1::32"
+      "kavlan-1": "2001:660:4406:580:9:1:0:32",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:32",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:32",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:32",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:32",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:32",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:32",
+      "kavlan-2": "2001:660:4406:581:9:1:0:32",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:32",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:32",
+      "kavlan-3": "2001:660:4406:582:9:1:0:32",
+      "kavlan-4": "2001:660:4406:590:9:1:0:32",
+      "kavlan-5": "2001:660:4406:591:9:1:0:32",
+      "kavlan-6": "2001:660:4406:592:9:1:0:32",
+      "kavlan-7": "2001:660:4406:593:9:1:0:32",
+      "kavlan-8": "2001:660:4406:594:9:1:0:32",
+      "kavlan-9": "2001:660:4406:595:9:1:0:32"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::32",
-      "kavlan-11": "2001:660:4406:1a0:509:2::32",
-      "kavlan-12": "2001:660:4406:2a0:509:2::32",
-      "kavlan-13": "2001:660:4406:4a0:509:2::32",
-      "kavlan-14": "2001:660:4406:5a0:509:2::32",
-      "kavlan-16": "2001:660:4406:7a0:509:2::32",
-      "kavlan-18": "2001:660:4406:8a0:509:2::32",
-      "kavlan-2": "2001:660:4406:581:9:2::32",
-      "kavlan-20": "2001:660:4406:3a0:509:2::32",
-      "kavlan-21": "2001:660:4406:6a0:509:2::32",
-      "kavlan-3": "2001:660:4406:582:9:2::32",
-      "kavlan-4": "2001:660:4406:590:9:2::32",
-      "kavlan-5": "2001:660:4406:591:9:2::32",
-      "kavlan-6": "2001:660:4406:592:9:2::32",
-      "kavlan-7": "2001:660:4406:593:9:2::32",
-      "kavlan-8": "2001:660:4406:594:9:2::32",
-      "kavlan-9": "2001:660:4406:595:9:2::32"
+      "kavlan-1": "2001:660:4406:580:9:2:0:32",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:32",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:32",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:32",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:32",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:32",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:32",
+      "kavlan-2": "2001:660:4406:581:9:2:0:32",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:32",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:32",
+      "kavlan-3": "2001:660:4406:582:9:2:0:32",
+      "kavlan-4": "2001:660:4406:590:9:2:0:32",
+      "kavlan-5": "2001:660:4406:591:9:2:0:32",
+      "kavlan-6": "2001:660:4406:592:9:2:0:32",
+      "kavlan-7": "2001:660:4406:593:9:2:0:32",
+      "kavlan-8": "2001:660:4406:594:9:2:0:32",
+      "kavlan-9": "2001:660:4406:595:9:2:0:32"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::32",
-      "kavlan-11": "2001:660:4406:1a0:509:3::32",
-      "kavlan-12": "2001:660:4406:2a0:509:3::32",
-      "kavlan-13": "2001:660:4406:4a0:509:3::32",
-      "kavlan-14": "2001:660:4406:5a0:509:3::32",
-      "kavlan-16": "2001:660:4406:7a0:509:3::32",
-      "kavlan-18": "2001:660:4406:8a0:509:3::32",
-      "kavlan-2": "2001:660:4406:581:9:3::32",
-      "kavlan-20": "2001:660:4406:3a0:509:3::32",
-      "kavlan-21": "2001:660:4406:6a0:509:3::32",
-      "kavlan-3": "2001:660:4406:582:9:3::32",
-      "kavlan-4": "2001:660:4406:590:9:3::32",
-      "kavlan-5": "2001:660:4406:591:9:3::32",
-      "kavlan-6": "2001:660:4406:592:9:3::32",
-      "kavlan-7": "2001:660:4406:593:9:3::32",
-      "kavlan-8": "2001:660:4406:594:9:3::32",
-      "kavlan-9": "2001:660:4406:595:9:3::32"
+      "kavlan-1": "2001:660:4406:580:9:3:0:32",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:32",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:32",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:32",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:32",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:32",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:32",
+      "kavlan-2": "2001:660:4406:581:9:3:0:32",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:32",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:32",
+      "kavlan-3": "2001:660:4406:582:9:3:0:32",
+      "kavlan-4": "2001:660:4406:590:9:3:0:32",
+      "kavlan-5": "2001:660:4406:591:9:3:0:32",
+      "kavlan-6": "2001:660:4406:592:9:3:0:32",
+      "kavlan-7": "2001:660:4406:593:9:3:0:32",
+      "kavlan-8": "2001:660:4406:594:9:3:0:32",
+      "kavlan-9": "2001:660:4406:595:9:3:0:32"
     }
   },
   "main_memory": {
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.50",
-      "ip6": "2001:660:4406:500:9:0::32",
+      "ip6": "2001:660:4406:500:9::32",
       "kavlan": true,
       "mac": "e4:43:4b:1f:c1:c8",
       "management": false,
@@ -211,7 +211,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.150",
-      "ip6": "2001:660:4406:500:9:1::32",
+      "ip6": "2001:660:4406:500:9:1:0:32",
       "kavlan": true,
       "mac": "e4:43:4b:1f:c1:ca",
       "management": false,
@@ -233,7 +233,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.250",
-      "ip6": "2001:660:4406:500:9:2::32",
+      "ip6": "2001:660:4406:500:9:2:0:32",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:24",
       "management": false,
@@ -255,7 +255,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.150",
-      "ip6": "2001:660:4406:500:9:3::32",
+      "ip6": "2001:660:4406:500:9:3:0:32",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:26",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-51.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-51.json
index 1bf904207fcb3cca67c7c08a7dd4568ef6a7a505..917f222725d49acbab189ee323f1ac1f5cc71d4f 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-51.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-51.json
@@ -98,80 +98,80 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::33",
-      "kavlan-11": "2001:660:4406:1a0:509:0::33",
-      "kavlan-12": "2001:660:4406:2a0:509:0::33",
-      "kavlan-13": "2001:660:4406:4a0:509:0::33",
-      "kavlan-14": "2001:660:4406:5a0:509:0::33",
-      "kavlan-16": "2001:660:4406:7a0:509:0::33",
-      "kavlan-18": "2001:660:4406:8a0:509:0::33",
-      "kavlan-2": "2001:660:4406:581:9:0::33",
-      "kavlan-20": "2001:660:4406:3a0:509:0::33",
-      "kavlan-21": "2001:660:4406:6a0:509:0::33",
-      "kavlan-3": "2001:660:4406:582:9:0::33",
-      "kavlan-4": "2001:660:4406:590:9:0::33",
-      "kavlan-5": "2001:660:4406:591:9:0::33",
-      "kavlan-6": "2001:660:4406:592:9:0::33",
-      "kavlan-7": "2001:660:4406:593:9:0::33",
-      "kavlan-8": "2001:660:4406:594:9:0::33",
-      "kavlan-9": "2001:660:4406:595:9:0::33"
+      "kavlan-1": "2001:660:4406:580:9::33",
+      "kavlan-11": "2001:660:4406:1a0:509::33",
+      "kavlan-12": "2001:660:4406:2a0:509::33",
+      "kavlan-13": "2001:660:4406:4a0:509::33",
+      "kavlan-14": "2001:660:4406:5a0:509::33",
+      "kavlan-16": "2001:660:4406:7a0:509::33",
+      "kavlan-18": "2001:660:4406:8a0:509::33",
+      "kavlan-2": "2001:660:4406:581:9::33",
+      "kavlan-20": "2001:660:4406:3a0:509::33",
+      "kavlan-21": "2001:660:4406:6a0:509::33",
+      "kavlan-3": "2001:660:4406:582:9::33",
+      "kavlan-4": "2001:660:4406:590:9::33",
+      "kavlan-5": "2001:660:4406:591:9::33",
+      "kavlan-6": "2001:660:4406:592:9::33",
+      "kavlan-7": "2001:660:4406:593:9::33",
+      "kavlan-8": "2001:660:4406:594:9::33",
+      "kavlan-9": "2001:660:4406:595:9::33"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::33",
-      "kavlan-11": "2001:660:4406:1a0:509:1::33",
-      "kavlan-12": "2001:660:4406:2a0:509:1::33",
-      "kavlan-13": "2001:660:4406:4a0:509:1::33",
-      "kavlan-14": "2001:660:4406:5a0:509:1::33",
-      "kavlan-16": "2001:660:4406:7a0:509:1::33",
-      "kavlan-18": "2001:660:4406:8a0:509:1::33",
-      "kavlan-2": "2001:660:4406:581:9:1::33",
-      "kavlan-20": "2001:660:4406:3a0:509:1::33",
-      "kavlan-21": "2001:660:4406:6a0:509:1::33",
-      "kavlan-3": "2001:660:4406:582:9:1::33",
-      "kavlan-4": "2001:660:4406:590:9:1::33",
-      "kavlan-5": "2001:660:4406:591:9:1::33",
-      "kavlan-6": "2001:660:4406:592:9:1::33",
-      "kavlan-7": "2001:660:4406:593:9:1::33",
-      "kavlan-8": "2001:660:4406:594:9:1::33",
-      "kavlan-9": "2001:660:4406:595:9:1::33"
+      "kavlan-1": "2001:660:4406:580:9:1:0:33",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:33",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:33",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:33",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:33",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:33",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:33",
+      "kavlan-2": "2001:660:4406:581:9:1:0:33",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:33",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:33",
+      "kavlan-3": "2001:660:4406:582:9:1:0:33",
+      "kavlan-4": "2001:660:4406:590:9:1:0:33",
+      "kavlan-5": "2001:660:4406:591:9:1:0:33",
+      "kavlan-6": "2001:660:4406:592:9:1:0:33",
+      "kavlan-7": "2001:660:4406:593:9:1:0:33",
+      "kavlan-8": "2001:660:4406:594:9:1:0:33",
+      "kavlan-9": "2001:660:4406:595:9:1:0:33"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::33",
-      "kavlan-11": "2001:660:4406:1a0:509:2::33",
-      "kavlan-12": "2001:660:4406:2a0:509:2::33",
-      "kavlan-13": "2001:660:4406:4a0:509:2::33",
-      "kavlan-14": "2001:660:4406:5a0:509:2::33",
-      "kavlan-16": "2001:660:4406:7a0:509:2::33",
-      "kavlan-18": "2001:660:4406:8a0:509:2::33",
-      "kavlan-2": "2001:660:4406:581:9:2::33",
-      "kavlan-20": "2001:660:4406:3a0:509:2::33",
-      "kavlan-21": "2001:660:4406:6a0:509:2::33",
-      "kavlan-3": "2001:660:4406:582:9:2::33",
-      "kavlan-4": "2001:660:4406:590:9:2::33",
-      "kavlan-5": "2001:660:4406:591:9:2::33",
-      "kavlan-6": "2001:660:4406:592:9:2::33",
-      "kavlan-7": "2001:660:4406:593:9:2::33",
-      "kavlan-8": "2001:660:4406:594:9:2::33",
-      "kavlan-9": "2001:660:4406:595:9:2::33"
+      "kavlan-1": "2001:660:4406:580:9:2:0:33",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:33",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:33",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:33",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:33",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:33",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:33",
+      "kavlan-2": "2001:660:4406:581:9:2:0:33",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:33",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:33",
+      "kavlan-3": "2001:660:4406:582:9:2:0:33",
+      "kavlan-4": "2001:660:4406:590:9:2:0:33",
+      "kavlan-5": "2001:660:4406:591:9:2:0:33",
+      "kavlan-6": "2001:660:4406:592:9:2:0:33",
+      "kavlan-7": "2001:660:4406:593:9:2:0:33",
+      "kavlan-8": "2001:660:4406:594:9:2:0:33",
+      "kavlan-9": "2001:660:4406:595:9:2:0:33"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::33",
-      "kavlan-11": "2001:660:4406:1a0:509:3::33",
-      "kavlan-12": "2001:660:4406:2a0:509:3::33",
-      "kavlan-13": "2001:660:4406:4a0:509:3::33",
-      "kavlan-14": "2001:660:4406:5a0:509:3::33",
-      "kavlan-16": "2001:660:4406:7a0:509:3::33",
-      "kavlan-18": "2001:660:4406:8a0:509:3::33",
-      "kavlan-2": "2001:660:4406:581:9:3::33",
-      "kavlan-20": "2001:660:4406:3a0:509:3::33",
-      "kavlan-21": "2001:660:4406:6a0:509:3::33",
-      "kavlan-3": "2001:660:4406:582:9:3::33",
-      "kavlan-4": "2001:660:4406:590:9:3::33",
-      "kavlan-5": "2001:660:4406:591:9:3::33",
-      "kavlan-6": "2001:660:4406:592:9:3::33",
-      "kavlan-7": "2001:660:4406:593:9:3::33",
-      "kavlan-8": "2001:660:4406:594:9:3::33",
-      "kavlan-9": "2001:660:4406:595:9:3::33"
+      "kavlan-1": "2001:660:4406:580:9:3:0:33",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:33",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:33",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:33",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:33",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:33",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:33",
+      "kavlan-2": "2001:660:4406:581:9:3:0:33",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:33",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:33",
+      "kavlan-3": "2001:660:4406:582:9:3:0:33",
+      "kavlan-4": "2001:660:4406:590:9:3:0:33",
+      "kavlan-5": "2001:660:4406:591:9:3:0:33",
+      "kavlan-6": "2001:660:4406:592:9:3:0:33",
+      "kavlan-7": "2001:660:4406:593:9:3:0:33",
+      "kavlan-8": "2001:660:4406:594:9:3:0:33",
+      "kavlan-9": "2001:660:4406:595:9:3:0:33"
     }
   },
   "main_memory": {
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.51",
-      "ip6": "2001:660:4406:500:9:0::33",
+      "ip6": "2001:660:4406:500:9::33",
       "kavlan": true,
       "mac": "24:6e:96:03:24:20",
       "management": false,
@@ -211,7 +211,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.151",
-      "ip6": "2001:660:4406:500:9:1::33",
+      "ip6": "2001:660:4406:500:9:1:0:33",
       "kavlan": true,
       "mac": "24:6e:96:03:24:22",
       "management": false,
@@ -233,7 +233,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.251",
-      "ip6": "2001:660:4406:500:9:2::33",
+      "ip6": "2001:660:4406:500:9:2:0:33",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:e8",
       "management": false,
@@ -255,7 +255,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.151",
-      "ip6": "2001:660:4406:500:9:3::33",
+      "ip6": "2001:660:4406:500:9:3:0:33",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4c:ea",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-6.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-6.json
index 99a00337203c40a47169e2926375dd2343be0091..0bd333dc699ab7335021ec02a154ee50d18b5f66 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-6.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-6.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::6",
-      "kavlan-11": "2001:660:4406:1a0:509:0::6",
-      "kavlan-12": "2001:660:4406:2a0:509:0::6",
-      "kavlan-13": "2001:660:4406:4a0:509:0::6",
-      "kavlan-14": "2001:660:4406:5a0:509:0::6",
-      "kavlan-16": "2001:660:4406:7a0:509:0::6",
-      "kavlan-18": "2001:660:4406:8a0:509:0::6",
-      "kavlan-2": "2001:660:4406:581:9:0::6",
-      "kavlan-20": "2001:660:4406:3a0:509:0::6",
-      "kavlan-21": "2001:660:4406:6a0:509:0::6",
-      "kavlan-3": "2001:660:4406:582:9:0::6",
-      "kavlan-4": "2001:660:4406:590:9:0::6",
-      "kavlan-5": "2001:660:4406:591:9:0::6",
-      "kavlan-6": "2001:660:4406:592:9:0::6",
-      "kavlan-7": "2001:660:4406:593:9:0::6",
-      "kavlan-8": "2001:660:4406:594:9:0::6",
-      "kavlan-9": "2001:660:4406:595:9:0::6"
+      "kavlan-1": "2001:660:4406:580:9::6",
+      "kavlan-11": "2001:660:4406:1a0:509::6",
+      "kavlan-12": "2001:660:4406:2a0:509::6",
+      "kavlan-13": "2001:660:4406:4a0:509::6",
+      "kavlan-14": "2001:660:4406:5a0:509::6",
+      "kavlan-16": "2001:660:4406:7a0:509::6",
+      "kavlan-18": "2001:660:4406:8a0:509::6",
+      "kavlan-2": "2001:660:4406:581:9::6",
+      "kavlan-20": "2001:660:4406:3a0:509::6",
+      "kavlan-21": "2001:660:4406:6a0:509::6",
+      "kavlan-3": "2001:660:4406:582:9::6",
+      "kavlan-4": "2001:660:4406:590:9::6",
+      "kavlan-5": "2001:660:4406:591:9::6",
+      "kavlan-6": "2001:660:4406:592:9::6",
+      "kavlan-7": "2001:660:4406:593:9::6",
+      "kavlan-8": "2001:660:4406:594:9::6",
+      "kavlan-9": "2001:660:4406:595:9::6"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::6",
-      "kavlan-11": "2001:660:4406:1a0:509:1::6",
-      "kavlan-12": "2001:660:4406:2a0:509:1::6",
-      "kavlan-13": "2001:660:4406:4a0:509:1::6",
-      "kavlan-14": "2001:660:4406:5a0:509:1::6",
-      "kavlan-16": "2001:660:4406:7a0:509:1::6",
-      "kavlan-18": "2001:660:4406:8a0:509:1::6",
-      "kavlan-2": "2001:660:4406:581:9:1::6",
-      "kavlan-20": "2001:660:4406:3a0:509:1::6",
-      "kavlan-21": "2001:660:4406:6a0:509:1::6",
-      "kavlan-3": "2001:660:4406:582:9:1::6",
-      "kavlan-4": "2001:660:4406:590:9:1::6",
-      "kavlan-5": "2001:660:4406:591:9:1::6",
-      "kavlan-6": "2001:660:4406:592:9:1::6",
-      "kavlan-7": "2001:660:4406:593:9:1::6",
-      "kavlan-8": "2001:660:4406:594:9:1::6",
-      "kavlan-9": "2001:660:4406:595:9:1::6"
+      "kavlan-1": "2001:660:4406:580:9:1:0:6",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:6",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:6",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:6",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:6",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:6",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:6",
+      "kavlan-2": "2001:660:4406:581:9:1:0:6",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:6",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:6",
+      "kavlan-3": "2001:660:4406:582:9:1:0:6",
+      "kavlan-4": "2001:660:4406:590:9:1:0:6",
+      "kavlan-5": "2001:660:4406:591:9:1:0:6",
+      "kavlan-6": "2001:660:4406:592:9:1:0:6",
+      "kavlan-7": "2001:660:4406:593:9:1:0:6",
+      "kavlan-8": "2001:660:4406:594:9:1:0:6",
+      "kavlan-9": "2001:660:4406:595:9:1:0:6"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::6",
-      "kavlan-11": "2001:660:4406:1a0:509:2::6",
-      "kavlan-12": "2001:660:4406:2a0:509:2::6",
-      "kavlan-13": "2001:660:4406:4a0:509:2::6",
-      "kavlan-14": "2001:660:4406:5a0:509:2::6",
-      "kavlan-16": "2001:660:4406:7a0:509:2::6",
-      "kavlan-18": "2001:660:4406:8a0:509:2::6",
-      "kavlan-2": "2001:660:4406:581:9:2::6",
-      "kavlan-20": "2001:660:4406:3a0:509:2::6",
-      "kavlan-21": "2001:660:4406:6a0:509:2::6",
-      "kavlan-3": "2001:660:4406:582:9:2::6",
-      "kavlan-4": "2001:660:4406:590:9:2::6",
-      "kavlan-5": "2001:660:4406:591:9:2::6",
-      "kavlan-6": "2001:660:4406:592:9:2::6",
-      "kavlan-7": "2001:660:4406:593:9:2::6",
-      "kavlan-8": "2001:660:4406:594:9:2::6",
-      "kavlan-9": "2001:660:4406:595:9:2::6"
+      "kavlan-1": "2001:660:4406:580:9:2:0:6",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:6",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:6",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:6",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:6",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:6",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:6",
+      "kavlan-2": "2001:660:4406:581:9:2:0:6",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:6",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:6",
+      "kavlan-3": "2001:660:4406:582:9:2:0:6",
+      "kavlan-4": "2001:660:4406:590:9:2:0:6",
+      "kavlan-5": "2001:660:4406:591:9:2:0:6",
+      "kavlan-6": "2001:660:4406:592:9:2:0:6",
+      "kavlan-7": "2001:660:4406:593:9:2:0:6",
+      "kavlan-8": "2001:660:4406:594:9:2:0:6",
+      "kavlan-9": "2001:660:4406:595:9:2:0:6"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::6",
-      "kavlan-11": "2001:660:4406:1a0:509:3::6",
-      "kavlan-12": "2001:660:4406:2a0:509:3::6",
-      "kavlan-13": "2001:660:4406:4a0:509:3::6",
-      "kavlan-14": "2001:660:4406:5a0:509:3::6",
-      "kavlan-16": "2001:660:4406:7a0:509:3::6",
-      "kavlan-18": "2001:660:4406:8a0:509:3::6",
-      "kavlan-2": "2001:660:4406:581:9:3::6",
-      "kavlan-20": "2001:660:4406:3a0:509:3::6",
-      "kavlan-21": "2001:660:4406:6a0:509:3::6",
-      "kavlan-3": "2001:660:4406:582:9:3::6",
-      "kavlan-4": "2001:660:4406:590:9:3::6",
-      "kavlan-5": "2001:660:4406:591:9:3::6",
-      "kavlan-6": "2001:660:4406:592:9:3::6",
-      "kavlan-7": "2001:660:4406:593:9:3::6",
-      "kavlan-8": "2001:660:4406:594:9:3::6",
-      "kavlan-9": "2001:660:4406:595:9:3::6"
+      "kavlan-1": "2001:660:4406:580:9:3:0:6",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:6",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:6",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:6",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:6",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:6",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:6",
+      "kavlan-2": "2001:660:4406:581:9:3:0:6",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:6",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:6",
+      "kavlan-3": "2001:660:4406:582:9:3:0:6",
+      "kavlan-4": "2001:660:4406:590:9:3:0:6",
+      "kavlan-5": "2001:660:4406:591:9:3:0:6",
+      "kavlan-6": "2001:660:4406:592:9:3:0:6",
+      "kavlan-7": "2001:660:4406:593:9:3:0:6",
+      "kavlan-8": "2001:660:4406:594:9:3:0:6",
+      "kavlan-9": "2001:660:4406:595:9:3:0:6"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::6",
-      "kavlan-11": "2001:660:4406:1a0:509:4::6",
-      "kavlan-12": "2001:660:4406:2a0:509:4::6",
-      "kavlan-13": "2001:660:4406:4a0:509:4::6",
-      "kavlan-14": "2001:660:4406:5a0:509:4::6",
-      "kavlan-16": "2001:660:4406:7a0:509:4::6",
-      "kavlan-18": "2001:660:4406:8a0:509:4::6",
-      "kavlan-2": "2001:660:4406:581:9:4::6",
-      "kavlan-20": "2001:660:4406:3a0:509:4::6",
-      "kavlan-21": "2001:660:4406:6a0:509:4::6",
-      "kavlan-3": "2001:660:4406:582:9:4::6",
-      "kavlan-4": "2001:660:4406:590:9:4::6",
-      "kavlan-5": "2001:660:4406:591:9:4::6",
-      "kavlan-6": "2001:660:4406:592:9:4::6",
-      "kavlan-7": "2001:660:4406:593:9:4::6",
-      "kavlan-8": "2001:660:4406:594:9:4::6",
-      "kavlan-9": "2001:660:4406:595:9:4::6"
+      "kavlan-1": "2001:660:4406:580:9:4:0:6",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:6",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:6",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:6",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:6",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:6",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:6",
+      "kavlan-2": "2001:660:4406:581:9:4:0:6",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:6",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:6",
+      "kavlan-3": "2001:660:4406:582:9:4:0:6",
+      "kavlan-4": "2001:660:4406:590:9:4:0:6",
+      "kavlan-5": "2001:660:4406:591:9:4:0:6",
+      "kavlan-6": "2001:660:4406:592:9:4:0:6",
+      "kavlan-7": "2001:660:4406:593:9:4:0:6",
+      "kavlan-8": "2001:660:4406:594:9:4:0:6",
+      "kavlan-9": "2001:660:4406:595:9:4:0:6"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.6",
-      "ip6": "2001:660:4406:500:9:0::6",
+      "ip6": "2001:660:4406:500:9::6",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:30",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.106",
-      "ip6": "2001:660:4406:500:9:1::6",
+      "ip6": "2001:660:4406:500:9:1:0:6",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:32",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.206",
-      "ip6": "2001:660:4406:500:9:2::6",
+      "ip6": "2001:660:4406:500:9:2:0:6",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:b8",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.106",
-      "ip6": "2001:660:4406:500:9:3::6",
+      "ip6": "2001:660:4406:500:9:3:0:6",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:ba",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.206",
-      "ip6": "2001:660:4406:500:9:4::6",
+      "ip6": "2001:660:4406:500:9:4:0:6",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:34",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-7.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-7.json
index 2fdc597eb3def0bb54d8fbdbe1ac2ab9fc4bfff2..fcd69941ea126fa2dab035e27f0ce18514b093a3 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-7.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-7.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::7",
-      "kavlan-11": "2001:660:4406:1a0:509:0::7",
-      "kavlan-12": "2001:660:4406:2a0:509:0::7",
-      "kavlan-13": "2001:660:4406:4a0:509:0::7",
-      "kavlan-14": "2001:660:4406:5a0:509:0::7",
-      "kavlan-16": "2001:660:4406:7a0:509:0::7",
-      "kavlan-18": "2001:660:4406:8a0:509:0::7",
-      "kavlan-2": "2001:660:4406:581:9:0::7",
-      "kavlan-20": "2001:660:4406:3a0:509:0::7",
-      "kavlan-21": "2001:660:4406:6a0:509:0::7",
-      "kavlan-3": "2001:660:4406:582:9:0::7",
-      "kavlan-4": "2001:660:4406:590:9:0::7",
-      "kavlan-5": "2001:660:4406:591:9:0::7",
-      "kavlan-6": "2001:660:4406:592:9:0::7",
-      "kavlan-7": "2001:660:4406:593:9:0::7",
-      "kavlan-8": "2001:660:4406:594:9:0::7",
-      "kavlan-9": "2001:660:4406:595:9:0::7"
+      "kavlan-1": "2001:660:4406:580:9::7",
+      "kavlan-11": "2001:660:4406:1a0:509::7",
+      "kavlan-12": "2001:660:4406:2a0:509::7",
+      "kavlan-13": "2001:660:4406:4a0:509::7",
+      "kavlan-14": "2001:660:4406:5a0:509::7",
+      "kavlan-16": "2001:660:4406:7a0:509::7",
+      "kavlan-18": "2001:660:4406:8a0:509::7",
+      "kavlan-2": "2001:660:4406:581:9::7",
+      "kavlan-20": "2001:660:4406:3a0:509::7",
+      "kavlan-21": "2001:660:4406:6a0:509::7",
+      "kavlan-3": "2001:660:4406:582:9::7",
+      "kavlan-4": "2001:660:4406:590:9::7",
+      "kavlan-5": "2001:660:4406:591:9::7",
+      "kavlan-6": "2001:660:4406:592:9::7",
+      "kavlan-7": "2001:660:4406:593:9::7",
+      "kavlan-8": "2001:660:4406:594:9::7",
+      "kavlan-9": "2001:660:4406:595:9::7"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::7",
-      "kavlan-11": "2001:660:4406:1a0:509:1::7",
-      "kavlan-12": "2001:660:4406:2a0:509:1::7",
-      "kavlan-13": "2001:660:4406:4a0:509:1::7",
-      "kavlan-14": "2001:660:4406:5a0:509:1::7",
-      "kavlan-16": "2001:660:4406:7a0:509:1::7",
-      "kavlan-18": "2001:660:4406:8a0:509:1::7",
-      "kavlan-2": "2001:660:4406:581:9:1::7",
-      "kavlan-20": "2001:660:4406:3a0:509:1::7",
-      "kavlan-21": "2001:660:4406:6a0:509:1::7",
-      "kavlan-3": "2001:660:4406:582:9:1::7",
-      "kavlan-4": "2001:660:4406:590:9:1::7",
-      "kavlan-5": "2001:660:4406:591:9:1::7",
-      "kavlan-6": "2001:660:4406:592:9:1::7",
-      "kavlan-7": "2001:660:4406:593:9:1::7",
-      "kavlan-8": "2001:660:4406:594:9:1::7",
-      "kavlan-9": "2001:660:4406:595:9:1::7"
+      "kavlan-1": "2001:660:4406:580:9:1:0:7",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:7",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:7",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:7",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:7",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:7",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:7",
+      "kavlan-2": "2001:660:4406:581:9:1:0:7",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:7",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:7",
+      "kavlan-3": "2001:660:4406:582:9:1:0:7",
+      "kavlan-4": "2001:660:4406:590:9:1:0:7",
+      "kavlan-5": "2001:660:4406:591:9:1:0:7",
+      "kavlan-6": "2001:660:4406:592:9:1:0:7",
+      "kavlan-7": "2001:660:4406:593:9:1:0:7",
+      "kavlan-8": "2001:660:4406:594:9:1:0:7",
+      "kavlan-9": "2001:660:4406:595:9:1:0:7"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::7",
-      "kavlan-11": "2001:660:4406:1a0:509:2::7",
-      "kavlan-12": "2001:660:4406:2a0:509:2::7",
-      "kavlan-13": "2001:660:4406:4a0:509:2::7",
-      "kavlan-14": "2001:660:4406:5a0:509:2::7",
-      "kavlan-16": "2001:660:4406:7a0:509:2::7",
-      "kavlan-18": "2001:660:4406:8a0:509:2::7",
-      "kavlan-2": "2001:660:4406:581:9:2::7",
-      "kavlan-20": "2001:660:4406:3a0:509:2::7",
-      "kavlan-21": "2001:660:4406:6a0:509:2::7",
-      "kavlan-3": "2001:660:4406:582:9:2::7",
-      "kavlan-4": "2001:660:4406:590:9:2::7",
-      "kavlan-5": "2001:660:4406:591:9:2::7",
-      "kavlan-6": "2001:660:4406:592:9:2::7",
-      "kavlan-7": "2001:660:4406:593:9:2::7",
-      "kavlan-8": "2001:660:4406:594:9:2::7",
-      "kavlan-9": "2001:660:4406:595:9:2::7"
+      "kavlan-1": "2001:660:4406:580:9:2:0:7",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:7",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:7",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:7",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:7",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:7",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:7",
+      "kavlan-2": "2001:660:4406:581:9:2:0:7",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:7",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:7",
+      "kavlan-3": "2001:660:4406:582:9:2:0:7",
+      "kavlan-4": "2001:660:4406:590:9:2:0:7",
+      "kavlan-5": "2001:660:4406:591:9:2:0:7",
+      "kavlan-6": "2001:660:4406:592:9:2:0:7",
+      "kavlan-7": "2001:660:4406:593:9:2:0:7",
+      "kavlan-8": "2001:660:4406:594:9:2:0:7",
+      "kavlan-9": "2001:660:4406:595:9:2:0:7"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::7",
-      "kavlan-11": "2001:660:4406:1a0:509:3::7",
-      "kavlan-12": "2001:660:4406:2a0:509:3::7",
-      "kavlan-13": "2001:660:4406:4a0:509:3::7",
-      "kavlan-14": "2001:660:4406:5a0:509:3::7",
-      "kavlan-16": "2001:660:4406:7a0:509:3::7",
-      "kavlan-18": "2001:660:4406:8a0:509:3::7",
-      "kavlan-2": "2001:660:4406:581:9:3::7",
-      "kavlan-20": "2001:660:4406:3a0:509:3::7",
-      "kavlan-21": "2001:660:4406:6a0:509:3::7",
-      "kavlan-3": "2001:660:4406:582:9:3::7",
-      "kavlan-4": "2001:660:4406:590:9:3::7",
-      "kavlan-5": "2001:660:4406:591:9:3::7",
-      "kavlan-6": "2001:660:4406:592:9:3::7",
-      "kavlan-7": "2001:660:4406:593:9:3::7",
-      "kavlan-8": "2001:660:4406:594:9:3::7",
-      "kavlan-9": "2001:660:4406:595:9:3::7"
+      "kavlan-1": "2001:660:4406:580:9:3:0:7",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:7",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:7",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:7",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:7",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:7",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:7",
+      "kavlan-2": "2001:660:4406:581:9:3:0:7",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:7",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:7",
+      "kavlan-3": "2001:660:4406:582:9:3:0:7",
+      "kavlan-4": "2001:660:4406:590:9:3:0:7",
+      "kavlan-5": "2001:660:4406:591:9:3:0:7",
+      "kavlan-6": "2001:660:4406:592:9:3:0:7",
+      "kavlan-7": "2001:660:4406:593:9:3:0:7",
+      "kavlan-8": "2001:660:4406:594:9:3:0:7",
+      "kavlan-9": "2001:660:4406:595:9:3:0:7"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::7",
-      "kavlan-11": "2001:660:4406:1a0:509:4::7",
-      "kavlan-12": "2001:660:4406:2a0:509:4::7",
-      "kavlan-13": "2001:660:4406:4a0:509:4::7",
-      "kavlan-14": "2001:660:4406:5a0:509:4::7",
-      "kavlan-16": "2001:660:4406:7a0:509:4::7",
-      "kavlan-18": "2001:660:4406:8a0:509:4::7",
-      "kavlan-2": "2001:660:4406:581:9:4::7",
-      "kavlan-20": "2001:660:4406:3a0:509:4::7",
-      "kavlan-21": "2001:660:4406:6a0:509:4::7",
-      "kavlan-3": "2001:660:4406:582:9:4::7",
-      "kavlan-4": "2001:660:4406:590:9:4::7",
-      "kavlan-5": "2001:660:4406:591:9:4::7",
-      "kavlan-6": "2001:660:4406:592:9:4::7",
-      "kavlan-7": "2001:660:4406:593:9:4::7",
-      "kavlan-8": "2001:660:4406:594:9:4::7",
-      "kavlan-9": "2001:660:4406:595:9:4::7"
+      "kavlan-1": "2001:660:4406:580:9:4:0:7",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:7",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:7",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:7",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:7",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:7",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:7",
+      "kavlan-2": "2001:660:4406:581:9:4:0:7",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:7",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:7",
+      "kavlan-3": "2001:660:4406:582:9:4:0:7",
+      "kavlan-4": "2001:660:4406:590:9:4:0:7",
+      "kavlan-5": "2001:660:4406:591:9:4:0:7",
+      "kavlan-6": "2001:660:4406:592:9:4:0:7",
+      "kavlan-7": "2001:660:4406:593:9:4:0:7",
+      "kavlan-8": "2001:660:4406:594:9:4:0:7",
+      "kavlan-9": "2001:660:4406:595:9:4:0:7"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.7",
-      "ip6": "2001:660:4406:500:9:0::7",
+      "ip6": "2001:660:4406:500:9::7",
       "kavlan": true,
       "mac": "24:6e:96:03:10:58",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.107",
-      "ip6": "2001:660:4406:500:9:1::7",
+      "ip6": "2001:660:4406:500:9:1:0:7",
       "kavlan": true,
       "mac": "24:6e:96:03:10:5a",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.207",
-      "ip6": "2001:660:4406:500:9:2::7",
+      "ip6": "2001:660:4406:500:9:2:0:7",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:ac",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.107",
-      "ip6": "2001:660:4406:500:9:3::7",
+      "ip6": "2001:660:4406:500:9:3:0:7",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4b:ae",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.207",
-      "ip6": "2001:660:4406:500:9:4::7",
+      "ip6": "2001:660:4406:500:9:4:0:7",
       "kavlan": true,
       "mac": "24:6e:96:03:10:5c",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-8.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-8.json
index 601612954bb92a908f8b4b44d3bcfb91d15e1f02..d36393fcc2f64052c332807b0939e637f588e8cb 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-8.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-8.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::8",
-      "kavlan-11": "2001:660:4406:1a0:509:0::8",
-      "kavlan-12": "2001:660:4406:2a0:509:0::8",
-      "kavlan-13": "2001:660:4406:4a0:509:0::8",
-      "kavlan-14": "2001:660:4406:5a0:509:0::8",
-      "kavlan-16": "2001:660:4406:7a0:509:0::8",
-      "kavlan-18": "2001:660:4406:8a0:509:0::8",
-      "kavlan-2": "2001:660:4406:581:9:0::8",
-      "kavlan-20": "2001:660:4406:3a0:509:0::8",
-      "kavlan-21": "2001:660:4406:6a0:509:0::8",
-      "kavlan-3": "2001:660:4406:582:9:0::8",
-      "kavlan-4": "2001:660:4406:590:9:0::8",
-      "kavlan-5": "2001:660:4406:591:9:0::8",
-      "kavlan-6": "2001:660:4406:592:9:0::8",
-      "kavlan-7": "2001:660:4406:593:9:0::8",
-      "kavlan-8": "2001:660:4406:594:9:0::8",
-      "kavlan-9": "2001:660:4406:595:9:0::8"
+      "kavlan-1": "2001:660:4406:580:9::8",
+      "kavlan-11": "2001:660:4406:1a0:509::8",
+      "kavlan-12": "2001:660:4406:2a0:509::8",
+      "kavlan-13": "2001:660:4406:4a0:509::8",
+      "kavlan-14": "2001:660:4406:5a0:509::8",
+      "kavlan-16": "2001:660:4406:7a0:509::8",
+      "kavlan-18": "2001:660:4406:8a0:509::8",
+      "kavlan-2": "2001:660:4406:581:9::8",
+      "kavlan-20": "2001:660:4406:3a0:509::8",
+      "kavlan-21": "2001:660:4406:6a0:509::8",
+      "kavlan-3": "2001:660:4406:582:9::8",
+      "kavlan-4": "2001:660:4406:590:9::8",
+      "kavlan-5": "2001:660:4406:591:9::8",
+      "kavlan-6": "2001:660:4406:592:9::8",
+      "kavlan-7": "2001:660:4406:593:9::8",
+      "kavlan-8": "2001:660:4406:594:9::8",
+      "kavlan-9": "2001:660:4406:595:9::8"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::8",
-      "kavlan-11": "2001:660:4406:1a0:509:1::8",
-      "kavlan-12": "2001:660:4406:2a0:509:1::8",
-      "kavlan-13": "2001:660:4406:4a0:509:1::8",
-      "kavlan-14": "2001:660:4406:5a0:509:1::8",
-      "kavlan-16": "2001:660:4406:7a0:509:1::8",
-      "kavlan-18": "2001:660:4406:8a0:509:1::8",
-      "kavlan-2": "2001:660:4406:581:9:1::8",
-      "kavlan-20": "2001:660:4406:3a0:509:1::8",
-      "kavlan-21": "2001:660:4406:6a0:509:1::8",
-      "kavlan-3": "2001:660:4406:582:9:1::8",
-      "kavlan-4": "2001:660:4406:590:9:1::8",
-      "kavlan-5": "2001:660:4406:591:9:1::8",
-      "kavlan-6": "2001:660:4406:592:9:1::8",
-      "kavlan-7": "2001:660:4406:593:9:1::8",
-      "kavlan-8": "2001:660:4406:594:9:1::8",
-      "kavlan-9": "2001:660:4406:595:9:1::8"
+      "kavlan-1": "2001:660:4406:580:9:1:0:8",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:8",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:8",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:8",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:8",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:8",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:8",
+      "kavlan-2": "2001:660:4406:581:9:1:0:8",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:8",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:8",
+      "kavlan-3": "2001:660:4406:582:9:1:0:8",
+      "kavlan-4": "2001:660:4406:590:9:1:0:8",
+      "kavlan-5": "2001:660:4406:591:9:1:0:8",
+      "kavlan-6": "2001:660:4406:592:9:1:0:8",
+      "kavlan-7": "2001:660:4406:593:9:1:0:8",
+      "kavlan-8": "2001:660:4406:594:9:1:0:8",
+      "kavlan-9": "2001:660:4406:595:9:1:0:8"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::8",
-      "kavlan-11": "2001:660:4406:1a0:509:2::8",
-      "kavlan-12": "2001:660:4406:2a0:509:2::8",
-      "kavlan-13": "2001:660:4406:4a0:509:2::8",
-      "kavlan-14": "2001:660:4406:5a0:509:2::8",
-      "kavlan-16": "2001:660:4406:7a0:509:2::8",
-      "kavlan-18": "2001:660:4406:8a0:509:2::8",
-      "kavlan-2": "2001:660:4406:581:9:2::8",
-      "kavlan-20": "2001:660:4406:3a0:509:2::8",
-      "kavlan-21": "2001:660:4406:6a0:509:2::8",
-      "kavlan-3": "2001:660:4406:582:9:2::8",
-      "kavlan-4": "2001:660:4406:590:9:2::8",
-      "kavlan-5": "2001:660:4406:591:9:2::8",
-      "kavlan-6": "2001:660:4406:592:9:2::8",
-      "kavlan-7": "2001:660:4406:593:9:2::8",
-      "kavlan-8": "2001:660:4406:594:9:2::8",
-      "kavlan-9": "2001:660:4406:595:9:2::8"
+      "kavlan-1": "2001:660:4406:580:9:2:0:8",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:8",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:8",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:8",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:8",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:8",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:8",
+      "kavlan-2": "2001:660:4406:581:9:2:0:8",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:8",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:8",
+      "kavlan-3": "2001:660:4406:582:9:2:0:8",
+      "kavlan-4": "2001:660:4406:590:9:2:0:8",
+      "kavlan-5": "2001:660:4406:591:9:2:0:8",
+      "kavlan-6": "2001:660:4406:592:9:2:0:8",
+      "kavlan-7": "2001:660:4406:593:9:2:0:8",
+      "kavlan-8": "2001:660:4406:594:9:2:0:8",
+      "kavlan-9": "2001:660:4406:595:9:2:0:8"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::8",
-      "kavlan-11": "2001:660:4406:1a0:509:3::8",
-      "kavlan-12": "2001:660:4406:2a0:509:3::8",
-      "kavlan-13": "2001:660:4406:4a0:509:3::8",
-      "kavlan-14": "2001:660:4406:5a0:509:3::8",
-      "kavlan-16": "2001:660:4406:7a0:509:3::8",
-      "kavlan-18": "2001:660:4406:8a0:509:3::8",
-      "kavlan-2": "2001:660:4406:581:9:3::8",
-      "kavlan-20": "2001:660:4406:3a0:509:3::8",
-      "kavlan-21": "2001:660:4406:6a0:509:3::8",
-      "kavlan-3": "2001:660:4406:582:9:3::8",
-      "kavlan-4": "2001:660:4406:590:9:3::8",
-      "kavlan-5": "2001:660:4406:591:9:3::8",
-      "kavlan-6": "2001:660:4406:592:9:3::8",
-      "kavlan-7": "2001:660:4406:593:9:3::8",
-      "kavlan-8": "2001:660:4406:594:9:3::8",
-      "kavlan-9": "2001:660:4406:595:9:3::8"
+      "kavlan-1": "2001:660:4406:580:9:3:0:8",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:8",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:8",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:8",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:8",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:8",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:8",
+      "kavlan-2": "2001:660:4406:581:9:3:0:8",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:8",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:8",
+      "kavlan-3": "2001:660:4406:582:9:3:0:8",
+      "kavlan-4": "2001:660:4406:590:9:3:0:8",
+      "kavlan-5": "2001:660:4406:591:9:3:0:8",
+      "kavlan-6": "2001:660:4406:592:9:3:0:8",
+      "kavlan-7": "2001:660:4406:593:9:3:0:8",
+      "kavlan-8": "2001:660:4406:594:9:3:0:8",
+      "kavlan-9": "2001:660:4406:595:9:3:0:8"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::8",
-      "kavlan-11": "2001:660:4406:1a0:509:4::8",
-      "kavlan-12": "2001:660:4406:2a0:509:4::8",
-      "kavlan-13": "2001:660:4406:4a0:509:4::8",
-      "kavlan-14": "2001:660:4406:5a0:509:4::8",
-      "kavlan-16": "2001:660:4406:7a0:509:4::8",
-      "kavlan-18": "2001:660:4406:8a0:509:4::8",
-      "kavlan-2": "2001:660:4406:581:9:4::8",
-      "kavlan-20": "2001:660:4406:3a0:509:4::8",
-      "kavlan-21": "2001:660:4406:6a0:509:4::8",
-      "kavlan-3": "2001:660:4406:582:9:4::8",
-      "kavlan-4": "2001:660:4406:590:9:4::8",
-      "kavlan-5": "2001:660:4406:591:9:4::8",
-      "kavlan-6": "2001:660:4406:592:9:4::8",
-      "kavlan-7": "2001:660:4406:593:9:4::8",
-      "kavlan-8": "2001:660:4406:594:9:4::8",
-      "kavlan-9": "2001:660:4406:595:9:4::8"
+      "kavlan-1": "2001:660:4406:580:9:4:0:8",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:8",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:8",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:8",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:8",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:8",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:8",
+      "kavlan-2": "2001:660:4406:581:9:4:0:8",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:8",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:8",
+      "kavlan-3": "2001:660:4406:582:9:4:0:8",
+      "kavlan-4": "2001:660:4406:590:9:4:0:8",
+      "kavlan-5": "2001:660:4406:591:9:4:0:8",
+      "kavlan-6": "2001:660:4406:592:9:4:0:8",
+      "kavlan-7": "2001:660:4406:593:9:4:0:8",
+      "kavlan-8": "2001:660:4406:594:9:4:0:8",
+      "kavlan-9": "2001:660:4406:595:9:4:0:8"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.8",
-      "ip6": "2001:660:4406:500:9:0::8",
+      "ip6": "2001:660:4406:500:9::8",
       "kavlan": true,
       "mac": "24:6e:96:03:11:b8",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.108",
-      "ip6": "2001:660:4406:500:9:1::8",
+      "ip6": "2001:660:4406:500:9:1:0:8",
       "kavlan": true,
       "mac": "24:6e:96:03:11:ba",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.208",
-      "ip6": "2001:660:4406:500:9:2::8",
+      "ip6": "2001:660:4406:500:9:2:0:8",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4d:d0",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.108",
-      "ip6": "2001:660:4406:500:9:3::8",
+      "ip6": "2001:660:4406:500:9:3:0:8",
       "kavlan": true,
       "mac": "a0:36:9f:7e:4d:d2",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.208",
-      "ip6": "2001:660:4406:500:9:4::8",
+      "ip6": "2001:660:4406:500:9:4:0:8",
       "kavlan": true,
       "mac": "24:6e:96:03:11:bc",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-9.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-9.json
index 299e9aac7a7aeb7df532a6fe7e503650c2d26bdb..9833272be60c82b944290b2e7dc14d6dcbc11010 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-9.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-9.json
@@ -117,99 +117,99 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9:0::9",
-      "kavlan-11": "2001:660:4406:1a0:509:0::9",
-      "kavlan-12": "2001:660:4406:2a0:509:0::9",
-      "kavlan-13": "2001:660:4406:4a0:509:0::9",
-      "kavlan-14": "2001:660:4406:5a0:509:0::9",
-      "kavlan-16": "2001:660:4406:7a0:509:0::9",
-      "kavlan-18": "2001:660:4406:8a0:509:0::9",
-      "kavlan-2": "2001:660:4406:581:9:0::9",
-      "kavlan-20": "2001:660:4406:3a0:509:0::9",
-      "kavlan-21": "2001:660:4406:6a0:509:0::9",
-      "kavlan-3": "2001:660:4406:582:9:0::9",
-      "kavlan-4": "2001:660:4406:590:9:0::9",
-      "kavlan-5": "2001:660:4406:591:9:0::9",
-      "kavlan-6": "2001:660:4406:592:9:0::9",
-      "kavlan-7": "2001:660:4406:593:9:0::9",
-      "kavlan-8": "2001:660:4406:594:9:0::9",
-      "kavlan-9": "2001:660:4406:595:9:0::9"
+      "kavlan-1": "2001:660:4406:580:9::9",
+      "kavlan-11": "2001:660:4406:1a0:509::9",
+      "kavlan-12": "2001:660:4406:2a0:509::9",
+      "kavlan-13": "2001:660:4406:4a0:509::9",
+      "kavlan-14": "2001:660:4406:5a0:509::9",
+      "kavlan-16": "2001:660:4406:7a0:509::9",
+      "kavlan-18": "2001:660:4406:8a0:509::9",
+      "kavlan-2": "2001:660:4406:581:9::9",
+      "kavlan-20": "2001:660:4406:3a0:509::9",
+      "kavlan-21": "2001:660:4406:6a0:509::9",
+      "kavlan-3": "2001:660:4406:582:9::9",
+      "kavlan-4": "2001:660:4406:590:9::9",
+      "kavlan-5": "2001:660:4406:591:9::9",
+      "kavlan-6": "2001:660:4406:592:9::9",
+      "kavlan-7": "2001:660:4406:593:9::9",
+      "kavlan-8": "2001:660:4406:594:9::9",
+      "kavlan-9": "2001:660:4406:595:9::9"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:9:1::9",
-      "kavlan-11": "2001:660:4406:1a0:509:1::9",
-      "kavlan-12": "2001:660:4406:2a0:509:1::9",
-      "kavlan-13": "2001:660:4406:4a0:509:1::9",
-      "kavlan-14": "2001:660:4406:5a0:509:1::9",
-      "kavlan-16": "2001:660:4406:7a0:509:1::9",
-      "kavlan-18": "2001:660:4406:8a0:509:1::9",
-      "kavlan-2": "2001:660:4406:581:9:1::9",
-      "kavlan-20": "2001:660:4406:3a0:509:1::9",
-      "kavlan-21": "2001:660:4406:6a0:509:1::9",
-      "kavlan-3": "2001:660:4406:582:9:1::9",
-      "kavlan-4": "2001:660:4406:590:9:1::9",
-      "kavlan-5": "2001:660:4406:591:9:1::9",
-      "kavlan-6": "2001:660:4406:592:9:1::9",
-      "kavlan-7": "2001:660:4406:593:9:1::9",
-      "kavlan-8": "2001:660:4406:594:9:1::9",
-      "kavlan-9": "2001:660:4406:595:9:1::9"
+      "kavlan-1": "2001:660:4406:580:9:1:0:9",
+      "kavlan-11": "2001:660:4406:1a0:509:1:0:9",
+      "kavlan-12": "2001:660:4406:2a0:509:1:0:9",
+      "kavlan-13": "2001:660:4406:4a0:509:1:0:9",
+      "kavlan-14": "2001:660:4406:5a0:509:1:0:9",
+      "kavlan-16": "2001:660:4406:7a0:509:1:0:9",
+      "kavlan-18": "2001:660:4406:8a0:509:1:0:9",
+      "kavlan-2": "2001:660:4406:581:9:1:0:9",
+      "kavlan-20": "2001:660:4406:3a0:509:1:0:9",
+      "kavlan-21": "2001:660:4406:6a0:509:1:0:9",
+      "kavlan-3": "2001:660:4406:582:9:1:0:9",
+      "kavlan-4": "2001:660:4406:590:9:1:0:9",
+      "kavlan-5": "2001:660:4406:591:9:1:0:9",
+      "kavlan-6": "2001:660:4406:592:9:1:0:9",
+      "kavlan-7": "2001:660:4406:593:9:1:0:9",
+      "kavlan-8": "2001:660:4406:594:9:1:0:9",
+      "kavlan-9": "2001:660:4406:595:9:1:0:9"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:9:2::9",
-      "kavlan-11": "2001:660:4406:1a0:509:2::9",
-      "kavlan-12": "2001:660:4406:2a0:509:2::9",
-      "kavlan-13": "2001:660:4406:4a0:509:2::9",
-      "kavlan-14": "2001:660:4406:5a0:509:2::9",
-      "kavlan-16": "2001:660:4406:7a0:509:2::9",
-      "kavlan-18": "2001:660:4406:8a0:509:2::9",
-      "kavlan-2": "2001:660:4406:581:9:2::9",
-      "kavlan-20": "2001:660:4406:3a0:509:2::9",
-      "kavlan-21": "2001:660:4406:6a0:509:2::9",
-      "kavlan-3": "2001:660:4406:582:9:2::9",
-      "kavlan-4": "2001:660:4406:590:9:2::9",
-      "kavlan-5": "2001:660:4406:591:9:2::9",
-      "kavlan-6": "2001:660:4406:592:9:2::9",
-      "kavlan-7": "2001:660:4406:593:9:2::9",
-      "kavlan-8": "2001:660:4406:594:9:2::9",
-      "kavlan-9": "2001:660:4406:595:9:2::9"
+      "kavlan-1": "2001:660:4406:580:9:2:0:9",
+      "kavlan-11": "2001:660:4406:1a0:509:2:0:9",
+      "kavlan-12": "2001:660:4406:2a0:509:2:0:9",
+      "kavlan-13": "2001:660:4406:4a0:509:2:0:9",
+      "kavlan-14": "2001:660:4406:5a0:509:2:0:9",
+      "kavlan-16": "2001:660:4406:7a0:509:2:0:9",
+      "kavlan-18": "2001:660:4406:8a0:509:2:0:9",
+      "kavlan-2": "2001:660:4406:581:9:2:0:9",
+      "kavlan-20": "2001:660:4406:3a0:509:2:0:9",
+      "kavlan-21": "2001:660:4406:6a0:509:2:0:9",
+      "kavlan-3": "2001:660:4406:582:9:2:0:9",
+      "kavlan-4": "2001:660:4406:590:9:2:0:9",
+      "kavlan-5": "2001:660:4406:591:9:2:0:9",
+      "kavlan-6": "2001:660:4406:592:9:2:0:9",
+      "kavlan-7": "2001:660:4406:593:9:2:0:9",
+      "kavlan-8": "2001:660:4406:594:9:2:0:9",
+      "kavlan-9": "2001:660:4406:595:9:2:0:9"
     },
     "eth3": {
-      "kavlan-1": "2001:660:4406:580:9:3::9",
-      "kavlan-11": "2001:660:4406:1a0:509:3::9",
-      "kavlan-12": "2001:660:4406:2a0:509:3::9",
-      "kavlan-13": "2001:660:4406:4a0:509:3::9",
-      "kavlan-14": "2001:660:4406:5a0:509:3::9",
-      "kavlan-16": "2001:660:4406:7a0:509:3::9",
-      "kavlan-18": "2001:660:4406:8a0:509:3::9",
-      "kavlan-2": "2001:660:4406:581:9:3::9",
-      "kavlan-20": "2001:660:4406:3a0:509:3::9",
-      "kavlan-21": "2001:660:4406:6a0:509:3::9",
-      "kavlan-3": "2001:660:4406:582:9:3::9",
-      "kavlan-4": "2001:660:4406:590:9:3::9",
-      "kavlan-5": "2001:660:4406:591:9:3::9",
-      "kavlan-6": "2001:660:4406:592:9:3::9",
-      "kavlan-7": "2001:660:4406:593:9:3::9",
-      "kavlan-8": "2001:660:4406:594:9:3::9",
-      "kavlan-9": "2001:660:4406:595:9:3::9"
+      "kavlan-1": "2001:660:4406:580:9:3:0:9",
+      "kavlan-11": "2001:660:4406:1a0:509:3:0:9",
+      "kavlan-12": "2001:660:4406:2a0:509:3:0:9",
+      "kavlan-13": "2001:660:4406:4a0:509:3:0:9",
+      "kavlan-14": "2001:660:4406:5a0:509:3:0:9",
+      "kavlan-16": "2001:660:4406:7a0:509:3:0:9",
+      "kavlan-18": "2001:660:4406:8a0:509:3:0:9",
+      "kavlan-2": "2001:660:4406:581:9:3:0:9",
+      "kavlan-20": "2001:660:4406:3a0:509:3:0:9",
+      "kavlan-21": "2001:660:4406:6a0:509:3:0:9",
+      "kavlan-3": "2001:660:4406:582:9:3:0:9",
+      "kavlan-4": "2001:660:4406:590:9:3:0:9",
+      "kavlan-5": "2001:660:4406:591:9:3:0:9",
+      "kavlan-6": "2001:660:4406:592:9:3:0:9",
+      "kavlan-7": "2001:660:4406:593:9:3:0:9",
+      "kavlan-8": "2001:660:4406:594:9:3:0:9",
+      "kavlan-9": "2001:660:4406:595:9:3:0:9"
     },
     "eth4": {
-      "kavlan-1": "2001:660:4406:580:9:4::9",
-      "kavlan-11": "2001:660:4406:1a0:509:4::9",
-      "kavlan-12": "2001:660:4406:2a0:509:4::9",
-      "kavlan-13": "2001:660:4406:4a0:509:4::9",
-      "kavlan-14": "2001:660:4406:5a0:509:4::9",
-      "kavlan-16": "2001:660:4406:7a0:509:4::9",
-      "kavlan-18": "2001:660:4406:8a0:509:4::9",
-      "kavlan-2": "2001:660:4406:581:9:4::9",
-      "kavlan-20": "2001:660:4406:3a0:509:4::9",
-      "kavlan-21": "2001:660:4406:6a0:509:4::9",
-      "kavlan-3": "2001:660:4406:582:9:4::9",
-      "kavlan-4": "2001:660:4406:590:9:4::9",
-      "kavlan-5": "2001:660:4406:591:9:4::9",
-      "kavlan-6": "2001:660:4406:592:9:4::9",
-      "kavlan-7": "2001:660:4406:593:9:4::9",
-      "kavlan-8": "2001:660:4406:594:9:4::9",
-      "kavlan-9": "2001:660:4406:595:9:4::9"
+      "kavlan-1": "2001:660:4406:580:9:4:0:9",
+      "kavlan-11": "2001:660:4406:1a0:509:4:0:9",
+      "kavlan-12": "2001:660:4406:2a0:509:4:0:9",
+      "kavlan-13": "2001:660:4406:4a0:509:4:0:9",
+      "kavlan-14": "2001:660:4406:5a0:509:4:0:9",
+      "kavlan-16": "2001:660:4406:7a0:509:4:0:9",
+      "kavlan-18": "2001:660:4406:8a0:509:4:0:9",
+      "kavlan-2": "2001:660:4406:581:9:4:0:9",
+      "kavlan-20": "2001:660:4406:3a0:509:4:0:9",
+      "kavlan-21": "2001:660:4406:6a0:509:4:0:9",
+      "kavlan-3": "2001:660:4406:582:9:4:0:9",
+      "kavlan-4": "2001:660:4406:590:9:4:0:9",
+      "kavlan-5": "2001:660:4406:591:9:4:0:9",
+      "kavlan-6": "2001:660:4406:592:9:4:0:9",
+      "kavlan-7": "2001:660:4406:593:9:4:0:9",
+      "kavlan-8": "2001:660:4406:594:9:4:0:9",
+      "kavlan-9": "2001:660:4406:595:9:4:0:9"
     }
   },
   "main_memory": {
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.9",
-      "ip6": "2001:660:4406:500:9:0::9",
+      "ip6": "2001:660:4406:500:9::9",
       "kavlan": true,
       "mac": "24:6e:96:02:97:a8",
       "management": false,
@@ -249,7 +249,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.109",
-      "ip6": "2001:660:4406:500:9:1::9",
+      "ip6": "2001:660:4406:500:9:1:0:9",
       "kavlan": true,
       "mac": "24:6e:96:02:97:aa",
       "management": false,
@@ -271,7 +271,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.209",
-      "ip6": "2001:660:4406:500:9:2::9",
+      "ip6": "2001:660:4406:500:9:2:0:9",
       "kavlan": true,
       "mac": "a0:36:9f:7f:34:a8",
       "management": false,
@@ -293,7 +293,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.109",
-      "ip6": "2001:660:4406:500:9:3::9",
+      "ip6": "2001:660:4406:500:9:3:0:9",
       "kavlan": true,
       "mac": "a0:36:9f:7f:34:aa",
       "management": false,
@@ -315,7 +315,7 @@
       "firmware_version": "1.67, 0x80000fab, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.209",
-      "ip6": "2001:660:4406:500:9:4::9",
+      "ip6": "2001:660:4406:500:9:4:0:9",
       "kavlan": true,
       "mac": "24:6e:96:02:97:ac",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-1.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-1.json
index 3e01825e0eabbc9c0e1b3012153ab0414d2b839a..e7d270bec17bf2f17831ff541aff537106754c2b 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-1.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-1.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::1",
-      "kavlan-11": "2001:660:4406:1a0:503:0::1",
-      "kavlan-12": "2001:660:4406:2a0:503:0::1",
-      "kavlan-13": "2001:660:4406:4a0:503:0::1",
-      "kavlan-14": "2001:660:4406:5a0:503:0::1",
-      "kavlan-16": "2001:660:4406:7a0:503:0::1",
-      "kavlan-18": "2001:660:4406:8a0:503:0::1",
-      "kavlan-2": "2001:660:4406:581:3:0::1",
-      "kavlan-20": "2001:660:4406:3a0:503:0::1",
-      "kavlan-21": "2001:660:4406:6a0:503:0::1",
-      "kavlan-3": "2001:660:4406:582:3:0::1",
-      "kavlan-4": "2001:660:4406:590:3:0::1",
-      "kavlan-5": "2001:660:4406:591:3:0::1",
-      "kavlan-6": "2001:660:4406:592:3:0::1",
-      "kavlan-7": "2001:660:4406:593:3:0::1",
-      "kavlan-8": "2001:660:4406:594:3:0::1",
-      "kavlan-9": "2001:660:4406:595:3:0::1"
+      "kavlan-1": "2001:660:4406:580:3::1",
+      "kavlan-11": "2001:660:4406:1a0:503::1",
+      "kavlan-12": "2001:660:4406:2a0:503::1",
+      "kavlan-13": "2001:660:4406:4a0:503::1",
+      "kavlan-14": "2001:660:4406:5a0:503::1",
+      "kavlan-16": "2001:660:4406:7a0:503::1",
+      "kavlan-18": "2001:660:4406:8a0:503::1",
+      "kavlan-2": "2001:660:4406:581:3::1",
+      "kavlan-20": "2001:660:4406:3a0:503::1",
+      "kavlan-21": "2001:660:4406:6a0:503::1",
+      "kavlan-3": "2001:660:4406:582:3::1",
+      "kavlan-4": "2001:660:4406:590:3::1",
+      "kavlan-5": "2001:660:4406:591:3::1",
+      "kavlan-6": "2001:660:4406:592:3::1",
+      "kavlan-7": "2001:660:4406:593:3::1",
+      "kavlan-8": "2001:660:4406:594:3::1",
+      "kavlan-9": "2001:660:4406:595:3::1"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::1",
-      "kavlan-11": "2001:660:4406:1a0:503:1::1",
-      "kavlan-12": "2001:660:4406:2a0:503:1::1",
-      "kavlan-13": "2001:660:4406:4a0:503:1::1",
-      "kavlan-14": "2001:660:4406:5a0:503:1::1",
-      "kavlan-16": "2001:660:4406:7a0:503:1::1",
-      "kavlan-18": "2001:660:4406:8a0:503:1::1",
-      "kavlan-2": "2001:660:4406:581:3:1::1",
-      "kavlan-20": "2001:660:4406:3a0:503:1::1",
-      "kavlan-21": "2001:660:4406:6a0:503:1::1",
-      "kavlan-3": "2001:660:4406:582:3:1::1",
-      "kavlan-4": "2001:660:4406:590:3:1::1",
-      "kavlan-5": "2001:660:4406:591:3:1::1",
-      "kavlan-6": "2001:660:4406:592:3:1::1",
-      "kavlan-7": "2001:660:4406:593:3:1::1",
-      "kavlan-8": "2001:660:4406:594:3:1::1",
-      "kavlan-9": "2001:660:4406:595:3:1::1"
+      "kavlan-1": "2001:660:4406:580:3:1:0:1",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:1",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:1",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:1",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:1",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:1",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:1",
+      "kavlan-2": "2001:660:4406:581:3:1:0:1",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:1",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:1",
+      "kavlan-3": "2001:660:4406:582:3:1:0:1",
+      "kavlan-4": "2001:660:4406:590:3:1:0:1",
+      "kavlan-5": "2001:660:4406:591:3:1:0:1",
+      "kavlan-6": "2001:660:4406:592:3:1:0:1",
+      "kavlan-7": "2001:660:4406:593:3:1:0:1",
+      "kavlan-8": "2001:660:4406:594:3:1:0:1",
+      "kavlan-9": "2001:660:4406:595:3:1:0:1"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.1",
-      "ip6": "2001:660:4406:500:3:0::1",
+      "ip6": "2001:660:4406:500:3::1",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:36",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.129",
-      "ip6": "2001:660:4406:500:3:1::1",
+      "ip6": "2001:660:4406:500:3:1:0:1",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:37",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-10.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-10.json
index 43f1d7eac167c8388779509f90d7407facd39997..6c8514af935bf433f86f1110b3b641bf7ea6cdc2 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-10.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-10.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::a",
-      "kavlan-11": "2001:660:4406:1a0:503:0::a",
-      "kavlan-12": "2001:660:4406:2a0:503:0::a",
-      "kavlan-13": "2001:660:4406:4a0:503:0::a",
-      "kavlan-14": "2001:660:4406:5a0:503:0::a",
-      "kavlan-16": "2001:660:4406:7a0:503:0::a",
-      "kavlan-18": "2001:660:4406:8a0:503:0::a",
-      "kavlan-2": "2001:660:4406:581:3:0::a",
-      "kavlan-20": "2001:660:4406:3a0:503:0::a",
-      "kavlan-21": "2001:660:4406:6a0:503:0::a",
-      "kavlan-3": "2001:660:4406:582:3:0::a",
-      "kavlan-4": "2001:660:4406:590:3:0::a",
-      "kavlan-5": "2001:660:4406:591:3:0::a",
-      "kavlan-6": "2001:660:4406:592:3:0::a",
-      "kavlan-7": "2001:660:4406:593:3:0::a",
-      "kavlan-8": "2001:660:4406:594:3:0::a",
-      "kavlan-9": "2001:660:4406:595:3:0::a"
+      "kavlan-1": "2001:660:4406:580:3::a",
+      "kavlan-11": "2001:660:4406:1a0:503::a",
+      "kavlan-12": "2001:660:4406:2a0:503::a",
+      "kavlan-13": "2001:660:4406:4a0:503::a",
+      "kavlan-14": "2001:660:4406:5a0:503::a",
+      "kavlan-16": "2001:660:4406:7a0:503::a",
+      "kavlan-18": "2001:660:4406:8a0:503::a",
+      "kavlan-2": "2001:660:4406:581:3::a",
+      "kavlan-20": "2001:660:4406:3a0:503::a",
+      "kavlan-21": "2001:660:4406:6a0:503::a",
+      "kavlan-3": "2001:660:4406:582:3::a",
+      "kavlan-4": "2001:660:4406:590:3::a",
+      "kavlan-5": "2001:660:4406:591:3::a",
+      "kavlan-6": "2001:660:4406:592:3::a",
+      "kavlan-7": "2001:660:4406:593:3::a",
+      "kavlan-8": "2001:660:4406:594:3::a",
+      "kavlan-9": "2001:660:4406:595:3::a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::a",
-      "kavlan-11": "2001:660:4406:1a0:503:1::a",
-      "kavlan-12": "2001:660:4406:2a0:503:1::a",
-      "kavlan-13": "2001:660:4406:4a0:503:1::a",
-      "kavlan-14": "2001:660:4406:5a0:503:1::a",
-      "kavlan-16": "2001:660:4406:7a0:503:1::a",
-      "kavlan-18": "2001:660:4406:8a0:503:1::a",
-      "kavlan-2": "2001:660:4406:581:3:1::a",
-      "kavlan-20": "2001:660:4406:3a0:503:1::a",
-      "kavlan-21": "2001:660:4406:6a0:503:1::a",
-      "kavlan-3": "2001:660:4406:582:3:1::a",
-      "kavlan-4": "2001:660:4406:590:3:1::a",
-      "kavlan-5": "2001:660:4406:591:3:1::a",
-      "kavlan-6": "2001:660:4406:592:3:1::a",
-      "kavlan-7": "2001:660:4406:593:3:1::a",
-      "kavlan-8": "2001:660:4406:594:3:1::a",
-      "kavlan-9": "2001:660:4406:595:3:1::a"
+      "kavlan-1": "2001:660:4406:580:3:1:0:a",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:a",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:a",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:a",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:a",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:a",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:a",
+      "kavlan-2": "2001:660:4406:581:3:1:0:a",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:a",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:a",
+      "kavlan-3": "2001:660:4406:582:3:1:0:a",
+      "kavlan-4": "2001:660:4406:590:3:1:0:a",
+      "kavlan-5": "2001:660:4406:591:3:1:0:a",
+      "kavlan-6": "2001:660:4406:592:3:1:0:a",
+      "kavlan-7": "2001:660:4406:593:3:1:0:a",
+      "kavlan-8": "2001:660:4406:594:3:1:0:a",
+      "kavlan-9": "2001:660:4406:595:3:1:0:a"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.10",
-      "ip6": "2001:660:4406:500:3:0::a",
+      "ip6": "2001:660:4406:500:3::a",
       "kavlan": true,
       "mac": "98:03:9b:b0:b6:c6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.138",
-      "ip6": "2001:660:4406:500:3:1::a",
+      "ip6": "2001:660:4406:500:3:1:0:a",
       "kavlan": true,
       "mac": "98:03:9b:b0:b6:c7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-100.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-100.json
index 343e6fb2a30292957d92676ef53cf9d0c2f65900..2679a1a10e9f3e27395b919ad4053afec1e5b153 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-100.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-100.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::64",
-      "kavlan-11": "2001:660:4406:1a0:503:0::64",
-      "kavlan-12": "2001:660:4406:2a0:503:0::64",
-      "kavlan-13": "2001:660:4406:4a0:503:0::64",
-      "kavlan-14": "2001:660:4406:5a0:503:0::64",
-      "kavlan-16": "2001:660:4406:7a0:503:0::64",
-      "kavlan-18": "2001:660:4406:8a0:503:0::64",
-      "kavlan-2": "2001:660:4406:581:3:0::64",
-      "kavlan-20": "2001:660:4406:3a0:503:0::64",
-      "kavlan-21": "2001:660:4406:6a0:503:0::64",
-      "kavlan-3": "2001:660:4406:582:3:0::64",
-      "kavlan-4": "2001:660:4406:590:3:0::64",
-      "kavlan-5": "2001:660:4406:591:3:0::64",
-      "kavlan-6": "2001:660:4406:592:3:0::64",
-      "kavlan-7": "2001:660:4406:593:3:0::64",
-      "kavlan-8": "2001:660:4406:594:3:0::64",
-      "kavlan-9": "2001:660:4406:595:3:0::64"
+      "kavlan-1": "2001:660:4406:580:3::64",
+      "kavlan-11": "2001:660:4406:1a0:503::64",
+      "kavlan-12": "2001:660:4406:2a0:503::64",
+      "kavlan-13": "2001:660:4406:4a0:503::64",
+      "kavlan-14": "2001:660:4406:5a0:503::64",
+      "kavlan-16": "2001:660:4406:7a0:503::64",
+      "kavlan-18": "2001:660:4406:8a0:503::64",
+      "kavlan-2": "2001:660:4406:581:3::64",
+      "kavlan-20": "2001:660:4406:3a0:503::64",
+      "kavlan-21": "2001:660:4406:6a0:503::64",
+      "kavlan-3": "2001:660:4406:582:3::64",
+      "kavlan-4": "2001:660:4406:590:3::64",
+      "kavlan-5": "2001:660:4406:591:3::64",
+      "kavlan-6": "2001:660:4406:592:3::64",
+      "kavlan-7": "2001:660:4406:593:3::64",
+      "kavlan-8": "2001:660:4406:594:3::64",
+      "kavlan-9": "2001:660:4406:595:3::64"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::64",
-      "kavlan-11": "2001:660:4406:1a0:503:1::64",
-      "kavlan-12": "2001:660:4406:2a0:503:1::64",
-      "kavlan-13": "2001:660:4406:4a0:503:1::64",
-      "kavlan-14": "2001:660:4406:5a0:503:1::64",
-      "kavlan-16": "2001:660:4406:7a0:503:1::64",
-      "kavlan-18": "2001:660:4406:8a0:503:1::64",
-      "kavlan-2": "2001:660:4406:581:3:1::64",
-      "kavlan-20": "2001:660:4406:3a0:503:1::64",
-      "kavlan-21": "2001:660:4406:6a0:503:1::64",
-      "kavlan-3": "2001:660:4406:582:3:1::64",
-      "kavlan-4": "2001:660:4406:590:3:1::64",
-      "kavlan-5": "2001:660:4406:591:3:1::64",
-      "kavlan-6": "2001:660:4406:592:3:1::64",
-      "kavlan-7": "2001:660:4406:593:3:1::64",
-      "kavlan-8": "2001:660:4406:594:3:1::64",
-      "kavlan-9": "2001:660:4406:595:3:1::64"
+      "kavlan-1": "2001:660:4406:580:3:1:0:64",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:64",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:64",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:64",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:64",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:64",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:64",
+      "kavlan-2": "2001:660:4406:581:3:1:0:64",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:64",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:64",
+      "kavlan-3": "2001:660:4406:582:3:1:0:64",
+      "kavlan-4": "2001:660:4406:590:3:1:0:64",
+      "kavlan-5": "2001:660:4406:591:3:1:0:64",
+      "kavlan-6": "2001:660:4406:592:3:1:0:64",
+      "kavlan-7": "2001:660:4406:593:3:1:0:64",
+      "kavlan-8": "2001:660:4406:594:3:1:0:64",
+      "kavlan-9": "2001:660:4406:595:3:1:0:64"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.100",
-      "ip6": "2001:660:4406:500:3:0::64",
+      "ip6": "2001:660:4406:500:3::64",
       "kavlan": true,
       "mac": "98:03:9b:b0:c6:0e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.228",
-      "ip6": "2001:660:4406:500:3:1::64",
+      "ip6": "2001:660:4406:500:3:1:0:64",
       "kavlan": true,
       "mac": "98:03:9b:b0:c6:0f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-101.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-101.json
index 36a4d3c1685d415f7e8bb6865a95255f6fbdf117..7a951db3438c7339e3996eeaed0b137c5d5fcd0f 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-101.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-101.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::65",
-      "kavlan-11": "2001:660:4406:1a0:503:0::65",
-      "kavlan-12": "2001:660:4406:2a0:503:0::65",
-      "kavlan-13": "2001:660:4406:4a0:503:0::65",
-      "kavlan-14": "2001:660:4406:5a0:503:0::65",
-      "kavlan-16": "2001:660:4406:7a0:503:0::65",
-      "kavlan-18": "2001:660:4406:8a0:503:0::65",
-      "kavlan-2": "2001:660:4406:581:3:0::65",
-      "kavlan-20": "2001:660:4406:3a0:503:0::65",
-      "kavlan-21": "2001:660:4406:6a0:503:0::65",
-      "kavlan-3": "2001:660:4406:582:3:0::65",
-      "kavlan-4": "2001:660:4406:590:3:0::65",
-      "kavlan-5": "2001:660:4406:591:3:0::65",
-      "kavlan-6": "2001:660:4406:592:3:0::65",
-      "kavlan-7": "2001:660:4406:593:3:0::65",
-      "kavlan-8": "2001:660:4406:594:3:0::65",
-      "kavlan-9": "2001:660:4406:595:3:0::65"
+      "kavlan-1": "2001:660:4406:580:3::65",
+      "kavlan-11": "2001:660:4406:1a0:503::65",
+      "kavlan-12": "2001:660:4406:2a0:503::65",
+      "kavlan-13": "2001:660:4406:4a0:503::65",
+      "kavlan-14": "2001:660:4406:5a0:503::65",
+      "kavlan-16": "2001:660:4406:7a0:503::65",
+      "kavlan-18": "2001:660:4406:8a0:503::65",
+      "kavlan-2": "2001:660:4406:581:3::65",
+      "kavlan-20": "2001:660:4406:3a0:503::65",
+      "kavlan-21": "2001:660:4406:6a0:503::65",
+      "kavlan-3": "2001:660:4406:582:3::65",
+      "kavlan-4": "2001:660:4406:590:3::65",
+      "kavlan-5": "2001:660:4406:591:3::65",
+      "kavlan-6": "2001:660:4406:592:3::65",
+      "kavlan-7": "2001:660:4406:593:3::65",
+      "kavlan-8": "2001:660:4406:594:3::65",
+      "kavlan-9": "2001:660:4406:595:3::65"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::65",
-      "kavlan-11": "2001:660:4406:1a0:503:1::65",
-      "kavlan-12": "2001:660:4406:2a0:503:1::65",
-      "kavlan-13": "2001:660:4406:4a0:503:1::65",
-      "kavlan-14": "2001:660:4406:5a0:503:1::65",
-      "kavlan-16": "2001:660:4406:7a0:503:1::65",
-      "kavlan-18": "2001:660:4406:8a0:503:1::65",
-      "kavlan-2": "2001:660:4406:581:3:1::65",
-      "kavlan-20": "2001:660:4406:3a0:503:1::65",
-      "kavlan-21": "2001:660:4406:6a0:503:1::65",
-      "kavlan-3": "2001:660:4406:582:3:1::65",
-      "kavlan-4": "2001:660:4406:590:3:1::65",
-      "kavlan-5": "2001:660:4406:591:3:1::65",
-      "kavlan-6": "2001:660:4406:592:3:1::65",
-      "kavlan-7": "2001:660:4406:593:3:1::65",
-      "kavlan-8": "2001:660:4406:594:3:1::65",
-      "kavlan-9": "2001:660:4406:595:3:1::65"
+      "kavlan-1": "2001:660:4406:580:3:1:0:65",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:65",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:65",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:65",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:65",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:65",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:65",
+      "kavlan-2": "2001:660:4406:581:3:1:0:65",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:65",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:65",
+      "kavlan-3": "2001:660:4406:582:3:1:0:65",
+      "kavlan-4": "2001:660:4406:590:3:1:0:65",
+      "kavlan-5": "2001:660:4406:591:3:1:0:65",
+      "kavlan-6": "2001:660:4406:592:3:1:0:65",
+      "kavlan-7": "2001:660:4406:593:3:1:0:65",
+      "kavlan-8": "2001:660:4406:594:3:1:0:65",
+      "kavlan-9": "2001:660:4406:595:3:1:0:65"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.101",
-      "ip6": "2001:660:4406:500:3:0::65",
+      "ip6": "2001:660:4406:500:3::65",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:76",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.229",
-      "ip6": "2001:660:4406:500:3:1::65",
+      "ip6": "2001:660:4406:500:3:1:0:65",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:77",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-102.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-102.json
index e30fbaba91bdc998af81f0f743a36383f37416ad..18c2ee689dac8124ecb6279369cf81d718332935 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-102.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-102.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::66",
-      "kavlan-11": "2001:660:4406:1a0:503:0::66",
-      "kavlan-12": "2001:660:4406:2a0:503:0::66",
-      "kavlan-13": "2001:660:4406:4a0:503:0::66",
-      "kavlan-14": "2001:660:4406:5a0:503:0::66",
-      "kavlan-16": "2001:660:4406:7a0:503:0::66",
-      "kavlan-18": "2001:660:4406:8a0:503:0::66",
-      "kavlan-2": "2001:660:4406:581:3:0::66",
-      "kavlan-20": "2001:660:4406:3a0:503:0::66",
-      "kavlan-21": "2001:660:4406:6a0:503:0::66",
-      "kavlan-3": "2001:660:4406:582:3:0::66",
-      "kavlan-4": "2001:660:4406:590:3:0::66",
-      "kavlan-5": "2001:660:4406:591:3:0::66",
-      "kavlan-6": "2001:660:4406:592:3:0::66",
-      "kavlan-7": "2001:660:4406:593:3:0::66",
-      "kavlan-8": "2001:660:4406:594:3:0::66",
-      "kavlan-9": "2001:660:4406:595:3:0::66"
+      "kavlan-1": "2001:660:4406:580:3::66",
+      "kavlan-11": "2001:660:4406:1a0:503::66",
+      "kavlan-12": "2001:660:4406:2a0:503::66",
+      "kavlan-13": "2001:660:4406:4a0:503::66",
+      "kavlan-14": "2001:660:4406:5a0:503::66",
+      "kavlan-16": "2001:660:4406:7a0:503::66",
+      "kavlan-18": "2001:660:4406:8a0:503::66",
+      "kavlan-2": "2001:660:4406:581:3::66",
+      "kavlan-20": "2001:660:4406:3a0:503::66",
+      "kavlan-21": "2001:660:4406:6a0:503::66",
+      "kavlan-3": "2001:660:4406:582:3::66",
+      "kavlan-4": "2001:660:4406:590:3::66",
+      "kavlan-5": "2001:660:4406:591:3::66",
+      "kavlan-6": "2001:660:4406:592:3::66",
+      "kavlan-7": "2001:660:4406:593:3::66",
+      "kavlan-8": "2001:660:4406:594:3::66",
+      "kavlan-9": "2001:660:4406:595:3::66"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::66",
-      "kavlan-11": "2001:660:4406:1a0:503:1::66",
-      "kavlan-12": "2001:660:4406:2a0:503:1::66",
-      "kavlan-13": "2001:660:4406:4a0:503:1::66",
-      "kavlan-14": "2001:660:4406:5a0:503:1::66",
-      "kavlan-16": "2001:660:4406:7a0:503:1::66",
-      "kavlan-18": "2001:660:4406:8a0:503:1::66",
-      "kavlan-2": "2001:660:4406:581:3:1::66",
-      "kavlan-20": "2001:660:4406:3a0:503:1::66",
-      "kavlan-21": "2001:660:4406:6a0:503:1::66",
-      "kavlan-3": "2001:660:4406:582:3:1::66",
-      "kavlan-4": "2001:660:4406:590:3:1::66",
-      "kavlan-5": "2001:660:4406:591:3:1::66",
-      "kavlan-6": "2001:660:4406:592:3:1::66",
-      "kavlan-7": "2001:660:4406:593:3:1::66",
-      "kavlan-8": "2001:660:4406:594:3:1::66",
-      "kavlan-9": "2001:660:4406:595:3:1::66"
+      "kavlan-1": "2001:660:4406:580:3:1:0:66",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:66",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:66",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:66",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:66",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:66",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:66",
+      "kavlan-2": "2001:660:4406:581:3:1:0:66",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:66",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:66",
+      "kavlan-3": "2001:660:4406:582:3:1:0:66",
+      "kavlan-4": "2001:660:4406:590:3:1:0:66",
+      "kavlan-5": "2001:660:4406:591:3:1:0:66",
+      "kavlan-6": "2001:660:4406:592:3:1:0:66",
+      "kavlan-7": "2001:660:4406:593:3:1:0:66",
+      "kavlan-8": "2001:660:4406:594:3:1:0:66",
+      "kavlan-9": "2001:660:4406:595:3:1:0:66"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.102",
-      "ip6": "2001:660:4406:500:3:0::66",
+      "ip6": "2001:660:4406:500:3::66",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:1e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.230",
-      "ip6": "2001:660:4406:500:3:1::66",
+      "ip6": "2001:660:4406:500:3:1:0:66",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:1f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-103.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-103.json
index 3bf5e61094c32af0f060b2b5ae54ff15a9081da5..6027fcce6a92cb13208564a264e5fd3bb1f91daa 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-103.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-103.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::67",
-      "kavlan-11": "2001:660:4406:1a0:503:0::67",
-      "kavlan-12": "2001:660:4406:2a0:503:0::67",
-      "kavlan-13": "2001:660:4406:4a0:503:0::67",
-      "kavlan-14": "2001:660:4406:5a0:503:0::67",
-      "kavlan-16": "2001:660:4406:7a0:503:0::67",
-      "kavlan-18": "2001:660:4406:8a0:503:0::67",
-      "kavlan-2": "2001:660:4406:581:3:0::67",
-      "kavlan-20": "2001:660:4406:3a0:503:0::67",
-      "kavlan-21": "2001:660:4406:6a0:503:0::67",
-      "kavlan-3": "2001:660:4406:582:3:0::67",
-      "kavlan-4": "2001:660:4406:590:3:0::67",
-      "kavlan-5": "2001:660:4406:591:3:0::67",
-      "kavlan-6": "2001:660:4406:592:3:0::67",
-      "kavlan-7": "2001:660:4406:593:3:0::67",
-      "kavlan-8": "2001:660:4406:594:3:0::67",
-      "kavlan-9": "2001:660:4406:595:3:0::67"
+      "kavlan-1": "2001:660:4406:580:3::67",
+      "kavlan-11": "2001:660:4406:1a0:503::67",
+      "kavlan-12": "2001:660:4406:2a0:503::67",
+      "kavlan-13": "2001:660:4406:4a0:503::67",
+      "kavlan-14": "2001:660:4406:5a0:503::67",
+      "kavlan-16": "2001:660:4406:7a0:503::67",
+      "kavlan-18": "2001:660:4406:8a0:503::67",
+      "kavlan-2": "2001:660:4406:581:3::67",
+      "kavlan-20": "2001:660:4406:3a0:503::67",
+      "kavlan-21": "2001:660:4406:6a0:503::67",
+      "kavlan-3": "2001:660:4406:582:3::67",
+      "kavlan-4": "2001:660:4406:590:3::67",
+      "kavlan-5": "2001:660:4406:591:3::67",
+      "kavlan-6": "2001:660:4406:592:3::67",
+      "kavlan-7": "2001:660:4406:593:3::67",
+      "kavlan-8": "2001:660:4406:594:3::67",
+      "kavlan-9": "2001:660:4406:595:3::67"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::67",
-      "kavlan-11": "2001:660:4406:1a0:503:1::67",
-      "kavlan-12": "2001:660:4406:2a0:503:1::67",
-      "kavlan-13": "2001:660:4406:4a0:503:1::67",
-      "kavlan-14": "2001:660:4406:5a0:503:1::67",
-      "kavlan-16": "2001:660:4406:7a0:503:1::67",
-      "kavlan-18": "2001:660:4406:8a0:503:1::67",
-      "kavlan-2": "2001:660:4406:581:3:1::67",
-      "kavlan-20": "2001:660:4406:3a0:503:1::67",
-      "kavlan-21": "2001:660:4406:6a0:503:1::67",
-      "kavlan-3": "2001:660:4406:582:3:1::67",
-      "kavlan-4": "2001:660:4406:590:3:1::67",
-      "kavlan-5": "2001:660:4406:591:3:1::67",
-      "kavlan-6": "2001:660:4406:592:3:1::67",
-      "kavlan-7": "2001:660:4406:593:3:1::67",
-      "kavlan-8": "2001:660:4406:594:3:1::67",
-      "kavlan-9": "2001:660:4406:595:3:1::67"
+      "kavlan-1": "2001:660:4406:580:3:1:0:67",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:67",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:67",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:67",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:67",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:67",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:67",
+      "kavlan-2": "2001:660:4406:581:3:1:0:67",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:67",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:67",
+      "kavlan-3": "2001:660:4406:582:3:1:0:67",
+      "kavlan-4": "2001:660:4406:590:3:1:0:67",
+      "kavlan-5": "2001:660:4406:591:3:1:0:67",
+      "kavlan-6": "2001:660:4406:592:3:1:0:67",
+      "kavlan-7": "2001:660:4406:593:3:1:0:67",
+      "kavlan-8": "2001:660:4406:594:3:1:0:67",
+      "kavlan-9": "2001:660:4406:595:3:1:0:67"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.103",
-      "ip6": "2001:660:4406:500:3:0::67",
+      "ip6": "2001:660:4406:500:3::67",
       "kavlan": true,
       "mac": "98:03:9b:b0:b6:46",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.231",
-      "ip6": "2001:660:4406:500:3:1::67",
+      "ip6": "2001:660:4406:500:3:1:0:67",
       "kavlan": true,
       "mac": "98:03:9b:b0:b6:47",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-104.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-104.json
index bbbeec312a92ca389711a71381d64bdefdd4820e..9bcf180bb9cd68dc902079a61f4b00a72bbde8a1 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-104.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-104.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::68",
-      "kavlan-11": "2001:660:4406:1a0:503:0::68",
-      "kavlan-12": "2001:660:4406:2a0:503:0::68",
-      "kavlan-13": "2001:660:4406:4a0:503:0::68",
-      "kavlan-14": "2001:660:4406:5a0:503:0::68",
-      "kavlan-16": "2001:660:4406:7a0:503:0::68",
-      "kavlan-18": "2001:660:4406:8a0:503:0::68",
-      "kavlan-2": "2001:660:4406:581:3:0::68",
-      "kavlan-20": "2001:660:4406:3a0:503:0::68",
-      "kavlan-21": "2001:660:4406:6a0:503:0::68",
-      "kavlan-3": "2001:660:4406:582:3:0::68",
-      "kavlan-4": "2001:660:4406:590:3:0::68",
-      "kavlan-5": "2001:660:4406:591:3:0::68",
-      "kavlan-6": "2001:660:4406:592:3:0::68",
-      "kavlan-7": "2001:660:4406:593:3:0::68",
-      "kavlan-8": "2001:660:4406:594:3:0::68",
-      "kavlan-9": "2001:660:4406:595:3:0::68"
+      "kavlan-1": "2001:660:4406:580:3::68",
+      "kavlan-11": "2001:660:4406:1a0:503::68",
+      "kavlan-12": "2001:660:4406:2a0:503::68",
+      "kavlan-13": "2001:660:4406:4a0:503::68",
+      "kavlan-14": "2001:660:4406:5a0:503::68",
+      "kavlan-16": "2001:660:4406:7a0:503::68",
+      "kavlan-18": "2001:660:4406:8a0:503::68",
+      "kavlan-2": "2001:660:4406:581:3::68",
+      "kavlan-20": "2001:660:4406:3a0:503::68",
+      "kavlan-21": "2001:660:4406:6a0:503::68",
+      "kavlan-3": "2001:660:4406:582:3::68",
+      "kavlan-4": "2001:660:4406:590:3::68",
+      "kavlan-5": "2001:660:4406:591:3::68",
+      "kavlan-6": "2001:660:4406:592:3::68",
+      "kavlan-7": "2001:660:4406:593:3::68",
+      "kavlan-8": "2001:660:4406:594:3::68",
+      "kavlan-9": "2001:660:4406:595:3::68"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::68",
-      "kavlan-11": "2001:660:4406:1a0:503:1::68",
-      "kavlan-12": "2001:660:4406:2a0:503:1::68",
-      "kavlan-13": "2001:660:4406:4a0:503:1::68",
-      "kavlan-14": "2001:660:4406:5a0:503:1::68",
-      "kavlan-16": "2001:660:4406:7a0:503:1::68",
-      "kavlan-18": "2001:660:4406:8a0:503:1::68",
-      "kavlan-2": "2001:660:4406:581:3:1::68",
-      "kavlan-20": "2001:660:4406:3a0:503:1::68",
-      "kavlan-21": "2001:660:4406:6a0:503:1::68",
-      "kavlan-3": "2001:660:4406:582:3:1::68",
-      "kavlan-4": "2001:660:4406:590:3:1::68",
-      "kavlan-5": "2001:660:4406:591:3:1::68",
-      "kavlan-6": "2001:660:4406:592:3:1::68",
-      "kavlan-7": "2001:660:4406:593:3:1::68",
-      "kavlan-8": "2001:660:4406:594:3:1::68",
-      "kavlan-9": "2001:660:4406:595:3:1::68"
+      "kavlan-1": "2001:660:4406:580:3:1:0:68",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:68",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:68",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:68",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:68",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:68",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:68",
+      "kavlan-2": "2001:660:4406:581:3:1:0:68",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:68",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:68",
+      "kavlan-3": "2001:660:4406:582:3:1:0:68",
+      "kavlan-4": "2001:660:4406:590:3:1:0:68",
+      "kavlan-5": "2001:660:4406:591:3:1:0:68",
+      "kavlan-6": "2001:660:4406:592:3:1:0:68",
+      "kavlan-7": "2001:660:4406:593:3:1:0:68",
+      "kavlan-8": "2001:660:4406:594:3:1:0:68",
+      "kavlan-9": "2001:660:4406:595:3:1:0:68"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.104",
-      "ip6": "2001:660:4406:500:3:0::68",
+      "ip6": "2001:660:4406:500:3::68",
       "kavlan": true,
       "mac": "98:03:9b:b0:c6:16",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.232",
-      "ip6": "2001:660:4406:500:3:1::68",
+      "ip6": "2001:660:4406:500:3:1:0:68",
       "kavlan": true,
       "mac": "98:03:9b:b0:c6:17",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-105.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-105.json
index 28cab29df0d7c1aa996bbfbf7b964a910d213af9..15ea1d40a34369044cde7aa6875796c6b96ee520 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-105.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-105.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::69",
-      "kavlan-11": "2001:660:4406:1a0:503:0::69",
-      "kavlan-12": "2001:660:4406:2a0:503:0::69",
-      "kavlan-13": "2001:660:4406:4a0:503:0::69",
-      "kavlan-14": "2001:660:4406:5a0:503:0::69",
-      "kavlan-16": "2001:660:4406:7a0:503:0::69",
-      "kavlan-18": "2001:660:4406:8a0:503:0::69",
-      "kavlan-2": "2001:660:4406:581:3:0::69",
-      "kavlan-20": "2001:660:4406:3a0:503:0::69",
-      "kavlan-21": "2001:660:4406:6a0:503:0::69",
-      "kavlan-3": "2001:660:4406:582:3:0::69",
-      "kavlan-4": "2001:660:4406:590:3:0::69",
-      "kavlan-5": "2001:660:4406:591:3:0::69",
-      "kavlan-6": "2001:660:4406:592:3:0::69",
-      "kavlan-7": "2001:660:4406:593:3:0::69",
-      "kavlan-8": "2001:660:4406:594:3:0::69",
-      "kavlan-9": "2001:660:4406:595:3:0::69"
+      "kavlan-1": "2001:660:4406:580:3::69",
+      "kavlan-11": "2001:660:4406:1a0:503::69",
+      "kavlan-12": "2001:660:4406:2a0:503::69",
+      "kavlan-13": "2001:660:4406:4a0:503::69",
+      "kavlan-14": "2001:660:4406:5a0:503::69",
+      "kavlan-16": "2001:660:4406:7a0:503::69",
+      "kavlan-18": "2001:660:4406:8a0:503::69",
+      "kavlan-2": "2001:660:4406:581:3::69",
+      "kavlan-20": "2001:660:4406:3a0:503::69",
+      "kavlan-21": "2001:660:4406:6a0:503::69",
+      "kavlan-3": "2001:660:4406:582:3::69",
+      "kavlan-4": "2001:660:4406:590:3::69",
+      "kavlan-5": "2001:660:4406:591:3::69",
+      "kavlan-6": "2001:660:4406:592:3::69",
+      "kavlan-7": "2001:660:4406:593:3::69",
+      "kavlan-8": "2001:660:4406:594:3::69",
+      "kavlan-9": "2001:660:4406:595:3::69"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::69",
-      "kavlan-11": "2001:660:4406:1a0:503:1::69",
-      "kavlan-12": "2001:660:4406:2a0:503:1::69",
-      "kavlan-13": "2001:660:4406:4a0:503:1::69",
-      "kavlan-14": "2001:660:4406:5a0:503:1::69",
-      "kavlan-16": "2001:660:4406:7a0:503:1::69",
-      "kavlan-18": "2001:660:4406:8a0:503:1::69",
-      "kavlan-2": "2001:660:4406:581:3:1::69",
-      "kavlan-20": "2001:660:4406:3a0:503:1::69",
-      "kavlan-21": "2001:660:4406:6a0:503:1::69",
-      "kavlan-3": "2001:660:4406:582:3:1::69",
-      "kavlan-4": "2001:660:4406:590:3:1::69",
-      "kavlan-5": "2001:660:4406:591:3:1::69",
-      "kavlan-6": "2001:660:4406:592:3:1::69",
-      "kavlan-7": "2001:660:4406:593:3:1::69",
-      "kavlan-8": "2001:660:4406:594:3:1::69",
-      "kavlan-9": "2001:660:4406:595:3:1::69"
+      "kavlan-1": "2001:660:4406:580:3:1:0:69",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:69",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:69",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:69",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:69",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:69",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:69",
+      "kavlan-2": "2001:660:4406:581:3:1:0:69",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:69",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:69",
+      "kavlan-3": "2001:660:4406:582:3:1:0:69",
+      "kavlan-4": "2001:660:4406:590:3:1:0:69",
+      "kavlan-5": "2001:660:4406:591:3:1:0:69",
+      "kavlan-6": "2001:660:4406:592:3:1:0:69",
+      "kavlan-7": "2001:660:4406:593:3:1:0:69",
+      "kavlan-8": "2001:660:4406:594:3:1:0:69",
+      "kavlan-9": "2001:660:4406:595:3:1:0:69"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.105",
-      "ip6": "2001:660:4406:500:3:0::69",
+      "ip6": "2001:660:4406:500:3::69",
       "kavlan": true,
       "mac": "98:03:9b:b0:c4:5e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.233",
-      "ip6": "2001:660:4406:500:3:1::69",
+      "ip6": "2001:660:4406:500:3:1:0:69",
       "kavlan": true,
       "mac": "98:03:9b:b0:c4:5f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-106.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-106.json
index b1e3e95d1420e74deab092e4e778ceabb87617f8..69829dca9fde1cb0814961682be17fa6b50c649f 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-106.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-106.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::6a",
-      "kavlan-11": "2001:660:4406:1a0:503:0::6a",
-      "kavlan-12": "2001:660:4406:2a0:503:0::6a",
-      "kavlan-13": "2001:660:4406:4a0:503:0::6a",
-      "kavlan-14": "2001:660:4406:5a0:503:0::6a",
-      "kavlan-16": "2001:660:4406:7a0:503:0::6a",
-      "kavlan-18": "2001:660:4406:8a0:503:0::6a",
-      "kavlan-2": "2001:660:4406:581:3:0::6a",
-      "kavlan-20": "2001:660:4406:3a0:503:0::6a",
-      "kavlan-21": "2001:660:4406:6a0:503:0::6a",
-      "kavlan-3": "2001:660:4406:582:3:0::6a",
-      "kavlan-4": "2001:660:4406:590:3:0::6a",
-      "kavlan-5": "2001:660:4406:591:3:0::6a",
-      "kavlan-6": "2001:660:4406:592:3:0::6a",
-      "kavlan-7": "2001:660:4406:593:3:0::6a",
-      "kavlan-8": "2001:660:4406:594:3:0::6a",
-      "kavlan-9": "2001:660:4406:595:3:0::6a"
+      "kavlan-1": "2001:660:4406:580:3::6a",
+      "kavlan-11": "2001:660:4406:1a0:503::6a",
+      "kavlan-12": "2001:660:4406:2a0:503::6a",
+      "kavlan-13": "2001:660:4406:4a0:503::6a",
+      "kavlan-14": "2001:660:4406:5a0:503::6a",
+      "kavlan-16": "2001:660:4406:7a0:503::6a",
+      "kavlan-18": "2001:660:4406:8a0:503::6a",
+      "kavlan-2": "2001:660:4406:581:3::6a",
+      "kavlan-20": "2001:660:4406:3a0:503::6a",
+      "kavlan-21": "2001:660:4406:6a0:503::6a",
+      "kavlan-3": "2001:660:4406:582:3::6a",
+      "kavlan-4": "2001:660:4406:590:3::6a",
+      "kavlan-5": "2001:660:4406:591:3::6a",
+      "kavlan-6": "2001:660:4406:592:3::6a",
+      "kavlan-7": "2001:660:4406:593:3::6a",
+      "kavlan-8": "2001:660:4406:594:3::6a",
+      "kavlan-9": "2001:660:4406:595:3::6a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::6a",
-      "kavlan-11": "2001:660:4406:1a0:503:1::6a",
-      "kavlan-12": "2001:660:4406:2a0:503:1::6a",
-      "kavlan-13": "2001:660:4406:4a0:503:1::6a",
-      "kavlan-14": "2001:660:4406:5a0:503:1::6a",
-      "kavlan-16": "2001:660:4406:7a0:503:1::6a",
-      "kavlan-18": "2001:660:4406:8a0:503:1::6a",
-      "kavlan-2": "2001:660:4406:581:3:1::6a",
-      "kavlan-20": "2001:660:4406:3a0:503:1::6a",
-      "kavlan-21": "2001:660:4406:6a0:503:1::6a",
-      "kavlan-3": "2001:660:4406:582:3:1::6a",
-      "kavlan-4": "2001:660:4406:590:3:1::6a",
-      "kavlan-5": "2001:660:4406:591:3:1::6a",
-      "kavlan-6": "2001:660:4406:592:3:1::6a",
-      "kavlan-7": "2001:660:4406:593:3:1::6a",
-      "kavlan-8": "2001:660:4406:594:3:1::6a",
-      "kavlan-9": "2001:660:4406:595:3:1::6a"
+      "kavlan-1": "2001:660:4406:580:3:1:0:6a",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:6a",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:6a",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:6a",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:6a",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:6a",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:6a",
+      "kavlan-2": "2001:660:4406:581:3:1:0:6a",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:6a",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:6a",
+      "kavlan-3": "2001:660:4406:582:3:1:0:6a",
+      "kavlan-4": "2001:660:4406:590:3:1:0:6a",
+      "kavlan-5": "2001:660:4406:591:3:1:0:6a",
+      "kavlan-6": "2001:660:4406:592:3:1:0:6a",
+      "kavlan-7": "2001:660:4406:593:3:1:0:6a",
+      "kavlan-8": "2001:660:4406:594:3:1:0:6a",
+      "kavlan-9": "2001:660:4406:595:3:1:0:6a"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.106",
-      "ip6": "2001:660:4406:500:3:0::6a",
+      "ip6": "2001:660:4406:500:3::6a",
       "kavlan": true,
       "mac": "98:03:9b:b0:be:e6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.234",
-      "ip6": "2001:660:4406:500:3:1::6a",
+      "ip6": "2001:660:4406:500:3:1:0:6a",
       "kavlan": true,
       "mac": "98:03:9b:b0:be:e7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-107.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-107.json
index fae4ad38b6676fe5e838e5ba4a2dea65e7435cca..254f59f157010b72311ea03de31bc98c283ea8db 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-107.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-107.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::6b",
-      "kavlan-11": "2001:660:4406:1a0:503:0::6b",
-      "kavlan-12": "2001:660:4406:2a0:503:0::6b",
-      "kavlan-13": "2001:660:4406:4a0:503:0::6b",
-      "kavlan-14": "2001:660:4406:5a0:503:0::6b",
-      "kavlan-16": "2001:660:4406:7a0:503:0::6b",
-      "kavlan-18": "2001:660:4406:8a0:503:0::6b",
-      "kavlan-2": "2001:660:4406:581:3:0::6b",
-      "kavlan-20": "2001:660:4406:3a0:503:0::6b",
-      "kavlan-21": "2001:660:4406:6a0:503:0::6b",
-      "kavlan-3": "2001:660:4406:582:3:0::6b",
-      "kavlan-4": "2001:660:4406:590:3:0::6b",
-      "kavlan-5": "2001:660:4406:591:3:0::6b",
-      "kavlan-6": "2001:660:4406:592:3:0::6b",
-      "kavlan-7": "2001:660:4406:593:3:0::6b",
-      "kavlan-8": "2001:660:4406:594:3:0::6b",
-      "kavlan-9": "2001:660:4406:595:3:0::6b"
+      "kavlan-1": "2001:660:4406:580:3::6b",
+      "kavlan-11": "2001:660:4406:1a0:503::6b",
+      "kavlan-12": "2001:660:4406:2a0:503::6b",
+      "kavlan-13": "2001:660:4406:4a0:503::6b",
+      "kavlan-14": "2001:660:4406:5a0:503::6b",
+      "kavlan-16": "2001:660:4406:7a0:503::6b",
+      "kavlan-18": "2001:660:4406:8a0:503::6b",
+      "kavlan-2": "2001:660:4406:581:3::6b",
+      "kavlan-20": "2001:660:4406:3a0:503::6b",
+      "kavlan-21": "2001:660:4406:6a0:503::6b",
+      "kavlan-3": "2001:660:4406:582:3::6b",
+      "kavlan-4": "2001:660:4406:590:3::6b",
+      "kavlan-5": "2001:660:4406:591:3::6b",
+      "kavlan-6": "2001:660:4406:592:3::6b",
+      "kavlan-7": "2001:660:4406:593:3::6b",
+      "kavlan-8": "2001:660:4406:594:3::6b",
+      "kavlan-9": "2001:660:4406:595:3::6b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::6b",
-      "kavlan-11": "2001:660:4406:1a0:503:1::6b",
-      "kavlan-12": "2001:660:4406:2a0:503:1::6b",
-      "kavlan-13": "2001:660:4406:4a0:503:1::6b",
-      "kavlan-14": "2001:660:4406:5a0:503:1::6b",
-      "kavlan-16": "2001:660:4406:7a0:503:1::6b",
-      "kavlan-18": "2001:660:4406:8a0:503:1::6b",
-      "kavlan-2": "2001:660:4406:581:3:1::6b",
-      "kavlan-20": "2001:660:4406:3a0:503:1::6b",
-      "kavlan-21": "2001:660:4406:6a0:503:1::6b",
-      "kavlan-3": "2001:660:4406:582:3:1::6b",
-      "kavlan-4": "2001:660:4406:590:3:1::6b",
-      "kavlan-5": "2001:660:4406:591:3:1::6b",
-      "kavlan-6": "2001:660:4406:592:3:1::6b",
-      "kavlan-7": "2001:660:4406:593:3:1::6b",
-      "kavlan-8": "2001:660:4406:594:3:1::6b",
-      "kavlan-9": "2001:660:4406:595:3:1::6b"
+      "kavlan-1": "2001:660:4406:580:3:1:0:6b",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:6b",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:6b",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:6b",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:6b",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:6b",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:6b",
+      "kavlan-2": "2001:660:4406:581:3:1:0:6b",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:6b",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:6b",
+      "kavlan-3": "2001:660:4406:582:3:1:0:6b",
+      "kavlan-4": "2001:660:4406:590:3:1:0:6b",
+      "kavlan-5": "2001:660:4406:591:3:1:0:6b",
+      "kavlan-6": "2001:660:4406:592:3:1:0:6b",
+      "kavlan-7": "2001:660:4406:593:3:1:0:6b",
+      "kavlan-8": "2001:660:4406:594:3:1:0:6b",
+      "kavlan-9": "2001:660:4406:595:3:1:0:6b"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.107",
-      "ip6": "2001:660:4406:500:3:0::6b",
+      "ip6": "2001:660:4406:500:3::6b",
       "kavlan": true,
       "mac": "98:03:9b:b0:9c:da",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.235",
-      "ip6": "2001:660:4406:500:3:1::6b",
+      "ip6": "2001:660:4406:500:3:1:0:6b",
       "kavlan": true,
       "mac": "98:03:9b:b0:9c:db",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-108.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-108.json
index f66a9541712959ed9884e158e562130db0ddaf61..12051ddeadae699754da4ae80236afa84ede8704 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-108.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-108.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::6c",
-      "kavlan-11": "2001:660:4406:1a0:503:0::6c",
-      "kavlan-12": "2001:660:4406:2a0:503:0::6c",
-      "kavlan-13": "2001:660:4406:4a0:503:0::6c",
-      "kavlan-14": "2001:660:4406:5a0:503:0::6c",
-      "kavlan-16": "2001:660:4406:7a0:503:0::6c",
-      "kavlan-18": "2001:660:4406:8a0:503:0::6c",
-      "kavlan-2": "2001:660:4406:581:3:0::6c",
-      "kavlan-20": "2001:660:4406:3a0:503:0::6c",
-      "kavlan-21": "2001:660:4406:6a0:503:0::6c",
-      "kavlan-3": "2001:660:4406:582:3:0::6c",
-      "kavlan-4": "2001:660:4406:590:3:0::6c",
-      "kavlan-5": "2001:660:4406:591:3:0::6c",
-      "kavlan-6": "2001:660:4406:592:3:0::6c",
-      "kavlan-7": "2001:660:4406:593:3:0::6c",
-      "kavlan-8": "2001:660:4406:594:3:0::6c",
-      "kavlan-9": "2001:660:4406:595:3:0::6c"
+      "kavlan-1": "2001:660:4406:580:3::6c",
+      "kavlan-11": "2001:660:4406:1a0:503::6c",
+      "kavlan-12": "2001:660:4406:2a0:503::6c",
+      "kavlan-13": "2001:660:4406:4a0:503::6c",
+      "kavlan-14": "2001:660:4406:5a0:503::6c",
+      "kavlan-16": "2001:660:4406:7a0:503::6c",
+      "kavlan-18": "2001:660:4406:8a0:503::6c",
+      "kavlan-2": "2001:660:4406:581:3::6c",
+      "kavlan-20": "2001:660:4406:3a0:503::6c",
+      "kavlan-21": "2001:660:4406:6a0:503::6c",
+      "kavlan-3": "2001:660:4406:582:3::6c",
+      "kavlan-4": "2001:660:4406:590:3::6c",
+      "kavlan-5": "2001:660:4406:591:3::6c",
+      "kavlan-6": "2001:660:4406:592:3::6c",
+      "kavlan-7": "2001:660:4406:593:3::6c",
+      "kavlan-8": "2001:660:4406:594:3::6c",
+      "kavlan-9": "2001:660:4406:595:3::6c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::6c",
-      "kavlan-11": "2001:660:4406:1a0:503:1::6c",
-      "kavlan-12": "2001:660:4406:2a0:503:1::6c",
-      "kavlan-13": "2001:660:4406:4a0:503:1::6c",
-      "kavlan-14": "2001:660:4406:5a0:503:1::6c",
-      "kavlan-16": "2001:660:4406:7a0:503:1::6c",
-      "kavlan-18": "2001:660:4406:8a0:503:1::6c",
-      "kavlan-2": "2001:660:4406:581:3:1::6c",
-      "kavlan-20": "2001:660:4406:3a0:503:1::6c",
-      "kavlan-21": "2001:660:4406:6a0:503:1::6c",
-      "kavlan-3": "2001:660:4406:582:3:1::6c",
-      "kavlan-4": "2001:660:4406:590:3:1::6c",
-      "kavlan-5": "2001:660:4406:591:3:1::6c",
-      "kavlan-6": "2001:660:4406:592:3:1::6c",
-      "kavlan-7": "2001:660:4406:593:3:1::6c",
-      "kavlan-8": "2001:660:4406:594:3:1::6c",
-      "kavlan-9": "2001:660:4406:595:3:1::6c"
+      "kavlan-1": "2001:660:4406:580:3:1:0:6c",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:6c",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:6c",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:6c",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:6c",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:6c",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:6c",
+      "kavlan-2": "2001:660:4406:581:3:1:0:6c",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:6c",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:6c",
+      "kavlan-3": "2001:660:4406:582:3:1:0:6c",
+      "kavlan-4": "2001:660:4406:590:3:1:0:6c",
+      "kavlan-5": "2001:660:4406:591:3:1:0:6c",
+      "kavlan-6": "2001:660:4406:592:3:1:0:6c",
+      "kavlan-7": "2001:660:4406:593:3:1:0:6c",
+      "kavlan-8": "2001:660:4406:594:3:1:0:6c",
+      "kavlan-9": "2001:660:4406:595:3:1:0:6c"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.108",
-      "ip6": "2001:660:4406:500:3:0::6c",
+      "ip6": "2001:660:4406:500:3::6c",
       "kavlan": true,
       "mac": "98:03:9b:b0:be:c6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.236",
-      "ip6": "2001:660:4406:500:3:1::6c",
+      "ip6": "2001:660:4406:500:3:1:0:6c",
       "kavlan": true,
       "mac": "98:03:9b:b0:be:c7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-109.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-109.json
index 1c338b9b28d1d4253a210aad183f19885e886ce8..858ce1d1d141ef46484cdf3414ba9496b2f19922 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-109.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-109.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::6d",
-      "kavlan-11": "2001:660:4406:1a0:503:0::6d",
-      "kavlan-12": "2001:660:4406:2a0:503:0::6d",
-      "kavlan-13": "2001:660:4406:4a0:503:0::6d",
-      "kavlan-14": "2001:660:4406:5a0:503:0::6d",
-      "kavlan-16": "2001:660:4406:7a0:503:0::6d",
-      "kavlan-18": "2001:660:4406:8a0:503:0::6d",
-      "kavlan-2": "2001:660:4406:581:3:0::6d",
-      "kavlan-20": "2001:660:4406:3a0:503:0::6d",
-      "kavlan-21": "2001:660:4406:6a0:503:0::6d",
-      "kavlan-3": "2001:660:4406:582:3:0::6d",
-      "kavlan-4": "2001:660:4406:590:3:0::6d",
-      "kavlan-5": "2001:660:4406:591:3:0::6d",
-      "kavlan-6": "2001:660:4406:592:3:0::6d",
-      "kavlan-7": "2001:660:4406:593:3:0::6d",
-      "kavlan-8": "2001:660:4406:594:3:0::6d",
-      "kavlan-9": "2001:660:4406:595:3:0::6d"
+      "kavlan-1": "2001:660:4406:580:3::6d",
+      "kavlan-11": "2001:660:4406:1a0:503::6d",
+      "kavlan-12": "2001:660:4406:2a0:503::6d",
+      "kavlan-13": "2001:660:4406:4a0:503::6d",
+      "kavlan-14": "2001:660:4406:5a0:503::6d",
+      "kavlan-16": "2001:660:4406:7a0:503::6d",
+      "kavlan-18": "2001:660:4406:8a0:503::6d",
+      "kavlan-2": "2001:660:4406:581:3::6d",
+      "kavlan-20": "2001:660:4406:3a0:503::6d",
+      "kavlan-21": "2001:660:4406:6a0:503::6d",
+      "kavlan-3": "2001:660:4406:582:3::6d",
+      "kavlan-4": "2001:660:4406:590:3::6d",
+      "kavlan-5": "2001:660:4406:591:3::6d",
+      "kavlan-6": "2001:660:4406:592:3::6d",
+      "kavlan-7": "2001:660:4406:593:3::6d",
+      "kavlan-8": "2001:660:4406:594:3::6d",
+      "kavlan-9": "2001:660:4406:595:3::6d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::6d",
-      "kavlan-11": "2001:660:4406:1a0:503:1::6d",
-      "kavlan-12": "2001:660:4406:2a0:503:1::6d",
-      "kavlan-13": "2001:660:4406:4a0:503:1::6d",
-      "kavlan-14": "2001:660:4406:5a0:503:1::6d",
-      "kavlan-16": "2001:660:4406:7a0:503:1::6d",
-      "kavlan-18": "2001:660:4406:8a0:503:1::6d",
-      "kavlan-2": "2001:660:4406:581:3:1::6d",
-      "kavlan-20": "2001:660:4406:3a0:503:1::6d",
-      "kavlan-21": "2001:660:4406:6a0:503:1::6d",
-      "kavlan-3": "2001:660:4406:582:3:1::6d",
-      "kavlan-4": "2001:660:4406:590:3:1::6d",
-      "kavlan-5": "2001:660:4406:591:3:1::6d",
-      "kavlan-6": "2001:660:4406:592:3:1::6d",
-      "kavlan-7": "2001:660:4406:593:3:1::6d",
-      "kavlan-8": "2001:660:4406:594:3:1::6d",
-      "kavlan-9": "2001:660:4406:595:3:1::6d"
+      "kavlan-1": "2001:660:4406:580:3:1:0:6d",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:6d",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:6d",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:6d",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:6d",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:6d",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:6d",
+      "kavlan-2": "2001:660:4406:581:3:1:0:6d",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:6d",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:6d",
+      "kavlan-3": "2001:660:4406:582:3:1:0:6d",
+      "kavlan-4": "2001:660:4406:590:3:1:0:6d",
+      "kavlan-5": "2001:660:4406:591:3:1:0:6d",
+      "kavlan-6": "2001:660:4406:592:3:1:0:6d",
+      "kavlan-7": "2001:660:4406:593:3:1:0:6d",
+      "kavlan-8": "2001:660:4406:594:3:1:0:6d",
+      "kavlan-9": "2001:660:4406:595:3:1:0:6d"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.109",
-      "ip6": "2001:660:4406:500:3:0::6d",
+      "ip6": "2001:660:4406:500:3::6d",
       "kavlan": true,
       "mac": "98:03:9b:b0:63:72",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.237",
-      "ip6": "2001:660:4406:500:3:1::6d",
+      "ip6": "2001:660:4406:500:3:1:0:6d",
       "kavlan": true,
       "mac": "98:03:9b:b0:63:73",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-11.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-11.json
index 77357a88532dd08d937f3c7a2a96a0ddbdb906b7..c6152188967b90ac454ba5c686cbeb2501001e28 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-11.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-11.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::b",
-      "kavlan-11": "2001:660:4406:1a0:503:0::b",
-      "kavlan-12": "2001:660:4406:2a0:503:0::b",
-      "kavlan-13": "2001:660:4406:4a0:503:0::b",
-      "kavlan-14": "2001:660:4406:5a0:503:0::b",
-      "kavlan-16": "2001:660:4406:7a0:503:0::b",
-      "kavlan-18": "2001:660:4406:8a0:503:0::b",
-      "kavlan-2": "2001:660:4406:581:3:0::b",
-      "kavlan-20": "2001:660:4406:3a0:503:0::b",
-      "kavlan-21": "2001:660:4406:6a0:503:0::b",
-      "kavlan-3": "2001:660:4406:582:3:0::b",
-      "kavlan-4": "2001:660:4406:590:3:0::b",
-      "kavlan-5": "2001:660:4406:591:3:0::b",
-      "kavlan-6": "2001:660:4406:592:3:0::b",
-      "kavlan-7": "2001:660:4406:593:3:0::b",
-      "kavlan-8": "2001:660:4406:594:3:0::b",
-      "kavlan-9": "2001:660:4406:595:3:0::b"
+      "kavlan-1": "2001:660:4406:580:3::b",
+      "kavlan-11": "2001:660:4406:1a0:503::b",
+      "kavlan-12": "2001:660:4406:2a0:503::b",
+      "kavlan-13": "2001:660:4406:4a0:503::b",
+      "kavlan-14": "2001:660:4406:5a0:503::b",
+      "kavlan-16": "2001:660:4406:7a0:503::b",
+      "kavlan-18": "2001:660:4406:8a0:503::b",
+      "kavlan-2": "2001:660:4406:581:3::b",
+      "kavlan-20": "2001:660:4406:3a0:503::b",
+      "kavlan-21": "2001:660:4406:6a0:503::b",
+      "kavlan-3": "2001:660:4406:582:3::b",
+      "kavlan-4": "2001:660:4406:590:3::b",
+      "kavlan-5": "2001:660:4406:591:3::b",
+      "kavlan-6": "2001:660:4406:592:3::b",
+      "kavlan-7": "2001:660:4406:593:3::b",
+      "kavlan-8": "2001:660:4406:594:3::b",
+      "kavlan-9": "2001:660:4406:595:3::b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::b",
-      "kavlan-11": "2001:660:4406:1a0:503:1::b",
-      "kavlan-12": "2001:660:4406:2a0:503:1::b",
-      "kavlan-13": "2001:660:4406:4a0:503:1::b",
-      "kavlan-14": "2001:660:4406:5a0:503:1::b",
-      "kavlan-16": "2001:660:4406:7a0:503:1::b",
-      "kavlan-18": "2001:660:4406:8a0:503:1::b",
-      "kavlan-2": "2001:660:4406:581:3:1::b",
-      "kavlan-20": "2001:660:4406:3a0:503:1::b",
-      "kavlan-21": "2001:660:4406:6a0:503:1::b",
-      "kavlan-3": "2001:660:4406:582:3:1::b",
-      "kavlan-4": "2001:660:4406:590:3:1::b",
-      "kavlan-5": "2001:660:4406:591:3:1::b",
-      "kavlan-6": "2001:660:4406:592:3:1::b",
-      "kavlan-7": "2001:660:4406:593:3:1::b",
-      "kavlan-8": "2001:660:4406:594:3:1::b",
-      "kavlan-9": "2001:660:4406:595:3:1::b"
+      "kavlan-1": "2001:660:4406:580:3:1:0:b",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:b",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:b",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:b",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:b",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:b",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:b",
+      "kavlan-2": "2001:660:4406:581:3:1:0:b",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:b",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:b",
+      "kavlan-3": "2001:660:4406:582:3:1:0:b",
+      "kavlan-4": "2001:660:4406:590:3:1:0:b",
+      "kavlan-5": "2001:660:4406:591:3:1:0:b",
+      "kavlan-6": "2001:660:4406:592:3:1:0:b",
+      "kavlan-7": "2001:660:4406:593:3:1:0:b",
+      "kavlan-8": "2001:660:4406:594:3:1:0:b",
+      "kavlan-9": "2001:660:4406:595:3:1:0:b"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.11",
-      "ip6": "2001:660:4406:500:3:0::b",
+      "ip6": "2001:660:4406:500:3::b",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:ea",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.139",
-      "ip6": "2001:660:4406:500:3:1::b",
+      "ip6": "2001:660:4406:500:3:1:0:b",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:eb",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-110.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-110.json
index 0b5661f6e09d275569e3d46abe12784f3c06547f..4acc0b3bfc685ced68dab177efc7deb15eab264a 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-110.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-110.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::6e",
-      "kavlan-11": "2001:660:4406:1a0:503:0::6e",
-      "kavlan-12": "2001:660:4406:2a0:503:0::6e",
-      "kavlan-13": "2001:660:4406:4a0:503:0::6e",
-      "kavlan-14": "2001:660:4406:5a0:503:0::6e",
-      "kavlan-16": "2001:660:4406:7a0:503:0::6e",
-      "kavlan-18": "2001:660:4406:8a0:503:0::6e",
-      "kavlan-2": "2001:660:4406:581:3:0::6e",
-      "kavlan-20": "2001:660:4406:3a0:503:0::6e",
-      "kavlan-21": "2001:660:4406:6a0:503:0::6e",
-      "kavlan-3": "2001:660:4406:582:3:0::6e",
-      "kavlan-4": "2001:660:4406:590:3:0::6e",
-      "kavlan-5": "2001:660:4406:591:3:0::6e",
-      "kavlan-6": "2001:660:4406:592:3:0::6e",
-      "kavlan-7": "2001:660:4406:593:3:0::6e",
-      "kavlan-8": "2001:660:4406:594:3:0::6e",
-      "kavlan-9": "2001:660:4406:595:3:0::6e"
+      "kavlan-1": "2001:660:4406:580:3::6e",
+      "kavlan-11": "2001:660:4406:1a0:503::6e",
+      "kavlan-12": "2001:660:4406:2a0:503::6e",
+      "kavlan-13": "2001:660:4406:4a0:503::6e",
+      "kavlan-14": "2001:660:4406:5a0:503::6e",
+      "kavlan-16": "2001:660:4406:7a0:503::6e",
+      "kavlan-18": "2001:660:4406:8a0:503::6e",
+      "kavlan-2": "2001:660:4406:581:3::6e",
+      "kavlan-20": "2001:660:4406:3a0:503::6e",
+      "kavlan-21": "2001:660:4406:6a0:503::6e",
+      "kavlan-3": "2001:660:4406:582:3::6e",
+      "kavlan-4": "2001:660:4406:590:3::6e",
+      "kavlan-5": "2001:660:4406:591:3::6e",
+      "kavlan-6": "2001:660:4406:592:3::6e",
+      "kavlan-7": "2001:660:4406:593:3::6e",
+      "kavlan-8": "2001:660:4406:594:3::6e",
+      "kavlan-9": "2001:660:4406:595:3::6e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::6e",
-      "kavlan-11": "2001:660:4406:1a0:503:1::6e",
-      "kavlan-12": "2001:660:4406:2a0:503:1::6e",
-      "kavlan-13": "2001:660:4406:4a0:503:1::6e",
-      "kavlan-14": "2001:660:4406:5a0:503:1::6e",
-      "kavlan-16": "2001:660:4406:7a0:503:1::6e",
-      "kavlan-18": "2001:660:4406:8a0:503:1::6e",
-      "kavlan-2": "2001:660:4406:581:3:1::6e",
-      "kavlan-20": "2001:660:4406:3a0:503:1::6e",
-      "kavlan-21": "2001:660:4406:6a0:503:1::6e",
-      "kavlan-3": "2001:660:4406:582:3:1::6e",
-      "kavlan-4": "2001:660:4406:590:3:1::6e",
-      "kavlan-5": "2001:660:4406:591:3:1::6e",
-      "kavlan-6": "2001:660:4406:592:3:1::6e",
-      "kavlan-7": "2001:660:4406:593:3:1::6e",
-      "kavlan-8": "2001:660:4406:594:3:1::6e",
-      "kavlan-9": "2001:660:4406:595:3:1::6e"
+      "kavlan-1": "2001:660:4406:580:3:1:0:6e",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:6e",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:6e",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:6e",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:6e",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:6e",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:6e",
+      "kavlan-2": "2001:660:4406:581:3:1:0:6e",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:6e",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:6e",
+      "kavlan-3": "2001:660:4406:582:3:1:0:6e",
+      "kavlan-4": "2001:660:4406:590:3:1:0:6e",
+      "kavlan-5": "2001:660:4406:591:3:1:0:6e",
+      "kavlan-6": "2001:660:4406:592:3:1:0:6e",
+      "kavlan-7": "2001:660:4406:593:3:1:0:6e",
+      "kavlan-8": "2001:660:4406:594:3:1:0:6e",
+      "kavlan-9": "2001:660:4406:595:3:1:0:6e"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.110",
-      "ip6": "2001:660:4406:500:3:0::6e",
+      "ip6": "2001:660:4406:500:3::6e",
       "kavlan": true,
       "mac": "98:03:9b:b0:c4:ae",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.238",
-      "ip6": "2001:660:4406:500:3:1::6e",
+      "ip6": "2001:660:4406:500:3:1:0:6e",
       "kavlan": true,
       "mac": "98:03:9b:b0:c4:af",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-111.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-111.json
index 7afb8fee37f4fafde650ec21d3661dd16fcc2fbe..01268cb2c8ddfb400b9c5e07bddafba597ddf89a 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-111.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-111.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::6f",
-      "kavlan-11": "2001:660:4406:1a0:503:0::6f",
-      "kavlan-12": "2001:660:4406:2a0:503:0::6f",
-      "kavlan-13": "2001:660:4406:4a0:503:0::6f",
-      "kavlan-14": "2001:660:4406:5a0:503:0::6f",
-      "kavlan-16": "2001:660:4406:7a0:503:0::6f",
-      "kavlan-18": "2001:660:4406:8a0:503:0::6f",
-      "kavlan-2": "2001:660:4406:581:3:0::6f",
-      "kavlan-20": "2001:660:4406:3a0:503:0::6f",
-      "kavlan-21": "2001:660:4406:6a0:503:0::6f",
-      "kavlan-3": "2001:660:4406:582:3:0::6f",
-      "kavlan-4": "2001:660:4406:590:3:0::6f",
-      "kavlan-5": "2001:660:4406:591:3:0::6f",
-      "kavlan-6": "2001:660:4406:592:3:0::6f",
-      "kavlan-7": "2001:660:4406:593:3:0::6f",
-      "kavlan-8": "2001:660:4406:594:3:0::6f",
-      "kavlan-9": "2001:660:4406:595:3:0::6f"
+      "kavlan-1": "2001:660:4406:580:3::6f",
+      "kavlan-11": "2001:660:4406:1a0:503::6f",
+      "kavlan-12": "2001:660:4406:2a0:503::6f",
+      "kavlan-13": "2001:660:4406:4a0:503::6f",
+      "kavlan-14": "2001:660:4406:5a0:503::6f",
+      "kavlan-16": "2001:660:4406:7a0:503::6f",
+      "kavlan-18": "2001:660:4406:8a0:503::6f",
+      "kavlan-2": "2001:660:4406:581:3::6f",
+      "kavlan-20": "2001:660:4406:3a0:503::6f",
+      "kavlan-21": "2001:660:4406:6a0:503::6f",
+      "kavlan-3": "2001:660:4406:582:3::6f",
+      "kavlan-4": "2001:660:4406:590:3::6f",
+      "kavlan-5": "2001:660:4406:591:3::6f",
+      "kavlan-6": "2001:660:4406:592:3::6f",
+      "kavlan-7": "2001:660:4406:593:3::6f",
+      "kavlan-8": "2001:660:4406:594:3::6f",
+      "kavlan-9": "2001:660:4406:595:3::6f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::6f",
-      "kavlan-11": "2001:660:4406:1a0:503:1::6f",
-      "kavlan-12": "2001:660:4406:2a0:503:1::6f",
-      "kavlan-13": "2001:660:4406:4a0:503:1::6f",
-      "kavlan-14": "2001:660:4406:5a0:503:1::6f",
-      "kavlan-16": "2001:660:4406:7a0:503:1::6f",
-      "kavlan-18": "2001:660:4406:8a0:503:1::6f",
-      "kavlan-2": "2001:660:4406:581:3:1::6f",
-      "kavlan-20": "2001:660:4406:3a0:503:1::6f",
-      "kavlan-21": "2001:660:4406:6a0:503:1::6f",
-      "kavlan-3": "2001:660:4406:582:3:1::6f",
-      "kavlan-4": "2001:660:4406:590:3:1::6f",
-      "kavlan-5": "2001:660:4406:591:3:1::6f",
-      "kavlan-6": "2001:660:4406:592:3:1::6f",
-      "kavlan-7": "2001:660:4406:593:3:1::6f",
-      "kavlan-8": "2001:660:4406:594:3:1::6f",
-      "kavlan-9": "2001:660:4406:595:3:1::6f"
+      "kavlan-1": "2001:660:4406:580:3:1:0:6f",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:6f",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:6f",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:6f",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:6f",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:6f",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:6f",
+      "kavlan-2": "2001:660:4406:581:3:1:0:6f",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:6f",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:6f",
+      "kavlan-3": "2001:660:4406:582:3:1:0:6f",
+      "kavlan-4": "2001:660:4406:590:3:1:0:6f",
+      "kavlan-5": "2001:660:4406:591:3:1:0:6f",
+      "kavlan-6": "2001:660:4406:592:3:1:0:6f",
+      "kavlan-7": "2001:660:4406:593:3:1:0:6f",
+      "kavlan-8": "2001:660:4406:594:3:1:0:6f",
+      "kavlan-9": "2001:660:4406:595:3:1:0:6f"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.111",
-      "ip6": "2001:660:4406:500:3:0::6f",
+      "ip6": "2001:660:4406:500:3::6f",
       "kavlan": true,
       "mac": "98:03:9b:b0:68:f2",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.239",
-      "ip6": "2001:660:4406:500:3:1::6f",
+      "ip6": "2001:660:4406:500:3:1:0:6f",
       "kavlan": true,
       "mac": "98:03:9b:b0:68:f3",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-112.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-112.json
index 52bed4e4723fcb68bb79821c04cfefbb0ba67c01..a73a05b3ddff6e4b06aa5efc546aecfd2b7c4649 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-112.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-112.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::70",
-      "kavlan-11": "2001:660:4406:1a0:503:0::70",
-      "kavlan-12": "2001:660:4406:2a0:503:0::70",
-      "kavlan-13": "2001:660:4406:4a0:503:0::70",
-      "kavlan-14": "2001:660:4406:5a0:503:0::70",
-      "kavlan-16": "2001:660:4406:7a0:503:0::70",
-      "kavlan-18": "2001:660:4406:8a0:503:0::70",
-      "kavlan-2": "2001:660:4406:581:3:0::70",
-      "kavlan-20": "2001:660:4406:3a0:503:0::70",
-      "kavlan-21": "2001:660:4406:6a0:503:0::70",
-      "kavlan-3": "2001:660:4406:582:3:0::70",
-      "kavlan-4": "2001:660:4406:590:3:0::70",
-      "kavlan-5": "2001:660:4406:591:3:0::70",
-      "kavlan-6": "2001:660:4406:592:3:0::70",
-      "kavlan-7": "2001:660:4406:593:3:0::70",
-      "kavlan-8": "2001:660:4406:594:3:0::70",
-      "kavlan-9": "2001:660:4406:595:3:0::70"
+      "kavlan-1": "2001:660:4406:580:3::70",
+      "kavlan-11": "2001:660:4406:1a0:503::70",
+      "kavlan-12": "2001:660:4406:2a0:503::70",
+      "kavlan-13": "2001:660:4406:4a0:503::70",
+      "kavlan-14": "2001:660:4406:5a0:503::70",
+      "kavlan-16": "2001:660:4406:7a0:503::70",
+      "kavlan-18": "2001:660:4406:8a0:503::70",
+      "kavlan-2": "2001:660:4406:581:3::70",
+      "kavlan-20": "2001:660:4406:3a0:503::70",
+      "kavlan-21": "2001:660:4406:6a0:503::70",
+      "kavlan-3": "2001:660:4406:582:3::70",
+      "kavlan-4": "2001:660:4406:590:3::70",
+      "kavlan-5": "2001:660:4406:591:3::70",
+      "kavlan-6": "2001:660:4406:592:3::70",
+      "kavlan-7": "2001:660:4406:593:3::70",
+      "kavlan-8": "2001:660:4406:594:3::70",
+      "kavlan-9": "2001:660:4406:595:3::70"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::70",
-      "kavlan-11": "2001:660:4406:1a0:503:1::70",
-      "kavlan-12": "2001:660:4406:2a0:503:1::70",
-      "kavlan-13": "2001:660:4406:4a0:503:1::70",
-      "kavlan-14": "2001:660:4406:5a0:503:1::70",
-      "kavlan-16": "2001:660:4406:7a0:503:1::70",
-      "kavlan-18": "2001:660:4406:8a0:503:1::70",
-      "kavlan-2": "2001:660:4406:581:3:1::70",
-      "kavlan-20": "2001:660:4406:3a0:503:1::70",
-      "kavlan-21": "2001:660:4406:6a0:503:1::70",
-      "kavlan-3": "2001:660:4406:582:3:1::70",
-      "kavlan-4": "2001:660:4406:590:3:1::70",
-      "kavlan-5": "2001:660:4406:591:3:1::70",
-      "kavlan-6": "2001:660:4406:592:3:1::70",
-      "kavlan-7": "2001:660:4406:593:3:1::70",
-      "kavlan-8": "2001:660:4406:594:3:1::70",
-      "kavlan-9": "2001:660:4406:595:3:1::70"
+      "kavlan-1": "2001:660:4406:580:3:1:0:70",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:70",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:70",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:70",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:70",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:70",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:70",
+      "kavlan-2": "2001:660:4406:581:3:1:0:70",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:70",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:70",
+      "kavlan-3": "2001:660:4406:582:3:1:0:70",
+      "kavlan-4": "2001:660:4406:590:3:1:0:70",
+      "kavlan-5": "2001:660:4406:591:3:1:0:70",
+      "kavlan-6": "2001:660:4406:592:3:1:0:70",
+      "kavlan-7": "2001:660:4406:593:3:1:0:70",
+      "kavlan-8": "2001:660:4406:594:3:1:0:70",
+      "kavlan-9": "2001:660:4406:595:3:1:0:70"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.112",
-      "ip6": "2001:660:4406:500:3:0::70",
+      "ip6": "2001:660:4406:500:3::70",
       "kavlan": true,
       "mac": "98:03:9b:b0:a3:2e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.240",
-      "ip6": "2001:660:4406:500:3:1::70",
+      "ip6": "2001:660:4406:500:3:1:0:70",
       "kavlan": true,
       "mac": "98:03:9b:b0:a3:2f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-113.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-113.json
index 14737138fe7c2a5bb1c4454a49071427c52756bf..22e7fa0d15e6c0c67a16af59549b7220778d0bf4 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-113.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-113.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::71",
-      "kavlan-11": "2001:660:4406:1a0:503:0::71",
-      "kavlan-12": "2001:660:4406:2a0:503:0::71",
-      "kavlan-13": "2001:660:4406:4a0:503:0::71",
-      "kavlan-14": "2001:660:4406:5a0:503:0::71",
-      "kavlan-16": "2001:660:4406:7a0:503:0::71",
-      "kavlan-18": "2001:660:4406:8a0:503:0::71",
-      "kavlan-2": "2001:660:4406:581:3:0::71",
-      "kavlan-20": "2001:660:4406:3a0:503:0::71",
-      "kavlan-21": "2001:660:4406:6a0:503:0::71",
-      "kavlan-3": "2001:660:4406:582:3:0::71",
-      "kavlan-4": "2001:660:4406:590:3:0::71",
-      "kavlan-5": "2001:660:4406:591:3:0::71",
-      "kavlan-6": "2001:660:4406:592:3:0::71",
-      "kavlan-7": "2001:660:4406:593:3:0::71",
-      "kavlan-8": "2001:660:4406:594:3:0::71",
-      "kavlan-9": "2001:660:4406:595:3:0::71"
+      "kavlan-1": "2001:660:4406:580:3::71",
+      "kavlan-11": "2001:660:4406:1a0:503::71",
+      "kavlan-12": "2001:660:4406:2a0:503::71",
+      "kavlan-13": "2001:660:4406:4a0:503::71",
+      "kavlan-14": "2001:660:4406:5a0:503::71",
+      "kavlan-16": "2001:660:4406:7a0:503::71",
+      "kavlan-18": "2001:660:4406:8a0:503::71",
+      "kavlan-2": "2001:660:4406:581:3::71",
+      "kavlan-20": "2001:660:4406:3a0:503::71",
+      "kavlan-21": "2001:660:4406:6a0:503::71",
+      "kavlan-3": "2001:660:4406:582:3::71",
+      "kavlan-4": "2001:660:4406:590:3::71",
+      "kavlan-5": "2001:660:4406:591:3::71",
+      "kavlan-6": "2001:660:4406:592:3::71",
+      "kavlan-7": "2001:660:4406:593:3::71",
+      "kavlan-8": "2001:660:4406:594:3::71",
+      "kavlan-9": "2001:660:4406:595:3::71"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::71",
-      "kavlan-11": "2001:660:4406:1a0:503:1::71",
-      "kavlan-12": "2001:660:4406:2a0:503:1::71",
-      "kavlan-13": "2001:660:4406:4a0:503:1::71",
-      "kavlan-14": "2001:660:4406:5a0:503:1::71",
-      "kavlan-16": "2001:660:4406:7a0:503:1::71",
-      "kavlan-18": "2001:660:4406:8a0:503:1::71",
-      "kavlan-2": "2001:660:4406:581:3:1::71",
-      "kavlan-20": "2001:660:4406:3a0:503:1::71",
-      "kavlan-21": "2001:660:4406:6a0:503:1::71",
-      "kavlan-3": "2001:660:4406:582:3:1::71",
-      "kavlan-4": "2001:660:4406:590:3:1::71",
-      "kavlan-5": "2001:660:4406:591:3:1::71",
-      "kavlan-6": "2001:660:4406:592:3:1::71",
-      "kavlan-7": "2001:660:4406:593:3:1::71",
-      "kavlan-8": "2001:660:4406:594:3:1::71",
-      "kavlan-9": "2001:660:4406:595:3:1::71"
+      "kavlan-1": "2001:660:4406:580:3:1:0:71",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:71",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:71",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:71",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:71",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:71",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:71",
+      "kavlan-2": "2001:660:4406:581:3:1:0:71",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:71",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:71",
+      "kavlan-3": "2001:660:4406:582:3:1:0:71",
+      "kavlan-4": "2001:660:4406:590:3:1:0:71",
+      "kavlan-5": "2001:660:4406:591:3:1:0:71",
+      "kavlan-6": "2001:660:4406:592:3:1:0:71",
+      "kavlan-7": "2001:660:4406:593:3:1:0:71",
+      "kavlan-8": "2001:660:4406:594:3:1:0:71",
+      "kavlan-9": "2001:660:4406:595:3:1:0:71"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.113",
-      "ip6": "2001:660:4406:500:3:0::71",
+      "ip6": "2001:660:4406:500:3::71",
       "kavlan": true,
       "mac": "98:03:9b:b0:69:12",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.241",
-      "ip6": "2001:660:4406:500:3:1::71",
+      "ip6": "2001:660:4406:500:3:1:0:71",
       "kavlan": true,
       "mac": "98:03:9b:b0:69:13",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-114.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-114.json
index b02165fbec54262bb63f8df1c2688319cfee8fa6..4118908b09b6ca5f4b04b2e0b5cb3d39a3fa685e 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-114.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-114.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::72",
-      "kavlan-11": "2001:660:4406:1a0:503:0::72",
-      "kavlan-12": "2001:660:4406:2a0:503:0::72",
-      "kavlan-13": "2001:660:4406:4a0:503:0::72",
-      "kavlan-14": "2001:660:4406:5a0:503:0::72",
-      "kavlan-16": "2001:660:4406:7a0:503:0::72",
-      "kavlan-18": "2001:660:4406:8a0:503:0::72",
-      "kavlan-2": "2001:660:4406:581:3:0::72",
-      "kavlan-20": "2001:660:4406:3a0:503:0::72",
-      "kavlan-21": "2001:660:4406:6a0:503:0::72",
-      "kavlan-3": "2001:660:4406:582:3:0::72",
-      "kavlan-4": "2001:660:4406:590:3:0::72",
-      "kavlan-5": "2001:660:4406:591:3:0::72",
-      "kavlan-6": "2001:660:4406:592:3:0::72",
-      "kavlan-7": "2001:660:4406:593:3:0::72",
-      "kavlan-8": "2001:660:4406:594:3:0::72",
-      "kavlan-9": "2001:660:4406:595:3:0::72"
+      "kavlan-1": "2001:660:4406:580:3::72",
+      "kavlan-11": "2001:660:4406:1a0:503::72",
+      "kavlan-12": "2001:660:4406:2a0:503::72",
+      "kavlan-13": "2001:660:4406:4a0:503::72",
+      "kavlan-14": "2001:660:4406:5a0:503::72",
+      "kavlan-16": "2001:660:4406:7a0:503::72",
+      "kavlan-18": "2001:660:4406:8a0:503::72",
+      "kavlan-2": "2001:660:4406:581:3::72",
+      "kavlan-20": "2001:660:4406:3a0:503::72",
+      "kavlan-21": "2001:660:4406:6a0:503::72",
+      "kavlan-3": "2001:660:4406:582:3::72",
+      "kavlan-4": "2001:660:4406:590:3::72",
+      "kavlan-5": "2001:660:4406:591:3::72",
+      "kavlan-6": "2001:660:4406:592:3::72",
+      "kavlan-7": "2001:660:4406:593:3::72",
+      "kavlan-8": "2001:660:4406:594:3::72",
+      "kavlan-9": "2001:660:4406:595:3::72"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::72",
-      "kavlan-11": "2001:660:4406:1a0:503:1::72",
-      "kavlan-12": "2001:660:4406:2a0:503:1::72",
-      "kavlan-13": "2001:660:4406:4a0:503:1::72",
-      "kavlan-14": "2001:660:4406:5a0:503:1::72",
-      "kavlan-16": "2001:660:4406:7a0:503:1::72",
-      "kavlan-18": "2001:660:4406:8a0:503:1::72",
-      "kavlan-2": "2001:660:4406:581:3:1::72",
-      "kavlan-20": "2001:660:4406:3a0:503:1::72",
-      "kavlan-21": "2001:660:4406:6a0:503:1::72",
-      "kavlan-3": "2001:660:4406:582:3:1::72",
-      "kavlan-4": "2001:660:4406:590:3:1::72",
-      "kavlan-5": "2001:660:4406:591:3:1::72",
-      "kavlan-6": "2001:660:4406:592:3:1::72",
-      "kavlan-7": "2001:660:4406:593:3:1::72",
-      "kavlan-8": "2001:660:4406:594:3:1::72",
-      "kavlan-9": "2001:660:4406:595:3:1::72"
+      "kavlan-1": "2001:660:4406:580:3:1:0:72",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:72",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:72",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:72",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:72",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:72",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:72",
+      "kavlan-2": "2001:660:4406:581:3:1:0:72",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:72",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:72",
+      "kavlan-3": "2001:660:4406:582:3:1:0:72",
+      "kavlan-4": "2001:660:4406:590:3:1:0:72",
+      "kavlan-5": "2001:660:4406:591:3:1:0:72",
+      "kavlan-6": "2001:660:4406:592:3:1:0:72",
+      "kavlan-7": "2001:660:4406:593:3:1:0:72",
+      "kavlan-8": "2001:660:4406:594:3:1:0:72",
+      "kavlan-9": "2001:660:4406:595:3:1:0:72"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.114",
-      "ip6": "2001:660:4406:500:3:0::72",
+      "ip6": "2001:660:4406:500:3::72",
       "kavlan": true,
       "mac": "98:03:9b:b0:69:0a",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.242",
-      "ip6": "2001:660:4406:500:3:1::72",
+      "ip6": "2001:660:4406:500:3:1:0:72",
       "kavlan": true,
       "mac": "98:03:9b:b0:69:0b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-115.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-115.json
index 4197c4a5a26d9e791bb3142e2c1cb4088b114400..1443cb52c0939ccffc72f3458b53952ab6f8fb95 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-115.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-115.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::73",
-      "kavlan-11": "2001:660:4406:1a0:503:0::73",
-      "kavlan-12": "2001:660:4406:2a0:503:0::73",
-      "kavlan-13": "2001:660:4406:4a0:503:0::73",
-      "kavlan-14": "2001:660:4406:5a0:503:0::73",
-      "kavlan-16": "2001:660:4406:7a0:503:0::73",
-      "kavlan-18": "2001:660:4406:8a0:503:0::73",
-      "kavlan-2": "2001:660:4406:581:3:0::73",
-      "kavlan-20": "2001:660:4406:3a0:503:0::73",
-      "kavlan-21": "2001:660:4406:6a0:503:0::73",
-      "kavlan-3": "2001:660:4406:582:3:0::73",
-      "kavlan-4": "2001:660:4406:590:3:0::73",
-      "kavlan-5": "2001:660:4406:591:3:0::73",
-      "kavlan-6": "2001:660:4406:592:3:0::73",
-      "kavlan-7": "2001:660:4406:593:3:0::73",
-      "kavlan-8": "2001:660:4406:594:3:0::73",
-      "kavlan-9": "2001:660:4406:595:3:0::73"
+      "kavlan-1": "2001:660:4406:580:3::73",
+      "kavlan-11": "2001:660:4406:1a0:503::73",
+      "kavlan-12": "2001:660:4406:2a0:503::73",
+      "kavlan-13": "2001:660:4406:4a0:503::73",
+      "kavlan-14": "2001:660:4406:5a0:503::73",
+      "kavlan-16": "2001:660:4406:7a0:503::73",
+      "kavlan-18": "2001:660:4406:8a0:503::73",
+      "kavlan-2": "2001:660:4406:581:3::73",
+      "kavlan-20": "2001:660:4406:3a0:503::73",
+      "kavlan-21": "2001:660:4406:6a0:503::73",
+      "kavlan-3": "2001:660:4406:582:3::73",
+      "kavlan-4": "2001:660:4406:590:3::73",
+      "kavlan-5": "2001:660:4406:591:3::73",
+      "kavlan-6": "2001:660:4406:592:3::73",
+      "kavlan-7": "2001:660:4406:593:3::73",
+      "kavlan-8": "2001:660:4406:594:3::73",
+      "kavlan-9": "2001:660:4406:595:3::73"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::73",
-      "kavlan-11": "2001:660:4406:1a0:503:1::73",
-      "kavlan-12": "2001:660:4406:2a0:503:1::73",
-      "kavlan-13": "2001:660:4406:4a0:503:1::73",
-      "kavlan-14": "2001:660:4406:5a0:503:1::73",
-      "kavlan-16": "2001:660:4406:7a0:503:1::73",
-      "kavlan-18": "2001:660:4406:8a0:503:1::73",
-      "kavlan-2": "2001:660:4406:581:3:1::73",
-      "kavlan-20": "2001:660:4406:3a0:503:1::73",
-      "kavlan-21": "2001:660:4406:6a0:503:1::73",
-      "kavlan-3": "2001:660:4406:582:3:1::73",
-      "kavlan-4": "2001:660:4406:590:3:1::73",
-      "kavlan-5": "2001:660:4406:591:3:1::73",
-      "kavlan-6": "2001:660:4406:592:3:1::73",
-      "kavlan-7": "2001:660:4406:593:3:1::73",
-      "kavlan-8": "2001:660:4406:594:3:1::73",
-      "kavlan-9": "2001:660:4406:595:3:1::73"
+      "kavlan-1": "2001:660:4406:580:3:1:0:73",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:73",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:73",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:73",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:73",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:73",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:73",
+      "kavlan-2": "2001:660:4406:581:3:1:0:73",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:73",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:73",
+      "kavlan-3": "2001:660:4406:582:3:1:0:73",
+      "kavlan-4": "2001:660:4406:590:3:1:0:73",
+      "kavlan-5": "2001:660:4406:591:3:1:0:73",
+      "kavlan-6": "2001:660:4406:592:3:1:0:73",
+      "kavlan-7": "2001:660:4406:593:3:1:0:73",
+      "kavlan-8": "2001:660:4406:594:3:1:0:73",
+      "kavlan-9": "2001:660:4406:595:3:1:0:73"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.115",
-      "ip6": "2001:660:4406:500:3:0::73",
+      "ip6": "2001:660:4406:500:3::73",
       "kavlan": true,
       "mac": "98:03:9b:b0:d2:de",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.243",
-      "ip6": "2001:660:4406:500:3:1::73",
+      "ip6": "2001:660:4406:500:3:1:0:73",
       "kavlan": true,
       "mac": "98:03:9b:b0:d2:df",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-116.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-116.json
index beb02ec4a288f9da1dda279107c2c8382098d4b0..1c40f390e6aa3a76ade530e559b16a634b62d523 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-116.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-116.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::74",
-      "kavlan-11": "2001:660:4406:1a0:503:0::74",
-      "kavlan-12": "2001:660:4406:2a0:503:0::74",
-      "kavlan-13": "2001:660:4406:4a0:503:0::74",
-      "kavlan-14": "2001:660:4406:5a0:503:0::74",
-      "kavlan-16": "2001:660:4406:7a0:503:0::74",
-      "kavlan-18": "2001:660:4406:8a0:503:0::74",
-      "kavlan-2": "2001:660:4406:581:3:0::74",
-      "kavlan-20": "2001:660:4406:3a0:503:0::74",
-      "kavlan-21": "2001:660:4406:6a0:503:0::74",
-      "kavlan-3": "2001:660:4406:582:3:0::74",
-      "kavlan-4": "2001:660:4406:590:3:0::74",
-      "kavlan-5": "2001:660:4406:591:3:0::74",
-      "kavlan-6": "2001:660:4406:592:3:0::74",
-      "kavlan-7": "2001:660:4406:593:3:0::74",
-      "kavlan-8": "2001:660:4406:594:3:0::74",
-      "kavlan-9": "2001:660:4406:595:3:0::74"
+      "kavlan-1": "2001:660:4406:580:3::74",
+      "kavlan-11": "2001:660:4406:1a0:503::74",
+      "kavlan-12": "2001:660:4406:2a0:503::74",
+      "kavlan-13": "2001:660:4406:4a0:503::74",
+      "kavlan-14": "2001:660:4406:5a0:503::74",
+      "kavlan-16": "2001:660:4406:7a0:503::74",
+      "kavlan-18": "2001:660:4406:8a0:503::74",
+      "kavlan-2": "2001:660:4406:581:3::74",
+      "kavlan-20": "2001:660:4406:3a0:503::74",
+      "kavlan-21": "2001:660:4406:6a0:503::74",
+      "kavlan-3": "2001:660:4406:582:3::74",
+      "kavlan-4": "2001:660:4406:590:3::74",
+      "kavlan-5": "2001:660:4406:591:3::74",
+      "kavlan-6": "2001:660:4406:592:3::74",
+      "kavlan-7": "2001:660:4406:593:3::74",
+      "kavlan-8": "2001:660:4406:594:3::74",
+      "kavlan-9": "2001:660:4406:595:3::74"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::74",
-      "kavlan-11": "2001:660:4406:1a0:503:1::74",
-      "kavlan-12": "2001:660:4406:2a0:503:1::74",
-      "kavlan-13": "2001:660:4406:4a0:503:1::74",
-      "kavlan-14": "2001:660:4406:5a0:503:1::74",
-      "kavlan-16": "2001:660:4406:7a0:503:1::74",
-      "kavlan-18": "2001:660:4406:8a0:503:1::74",
-      "kavlan-2": "2001:660:4406:581:3:1::74",
-      "kavlan-20": "2001:660:4406:3a0:503:1::74",
-      "kavlan-21": "2001:660:4406:6a0:503:1::74",
-      "kavlan-3": "2001:660:4406:582:3:1::74",
-      "kavlan-4": "2001:660:4406:590:3:1::74",
-      "kavlan-5": "2001:660:4406:591:3:1::74",
-      "kavlan-6": "2001:660:4406:592:3:1::74",
-      "kavlan-7": "2001:660:4406:593:3:1::74",
-      "kavlan-8": "2001:660:4406:594:3:1::74",
-      "kavlan-9": "2001:660:4406:595:3:1::74"
+      "kavlan-1": "2001:660:4406:580:3:1:0:74",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:74",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:74",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:74",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:74",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:74",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:74",
+      "kavlan-2": "2001:660:4406:581:3:1:0:74",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:74",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:74",
+      "kavlan-3": "2001:660:4406:582:3:1:0:74",
+      "kavlan-4": "2001:660:4406:590:3:1:0:74",
+      "kavlan-5": "2001:660:4406:591:3:1:0:74",
+      "kavlan-6": "2001:660:4406:592:3:1:0:74",
+      "kavlan-7": "2001:660:4406:593:3:1:0:74",
+      "kavlan-8": "2001:660:4406:594:3:1:0:74",
+      "kavlan-9": "2001:660:4406:595:3:1:0:74"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.116",
-      "ip6": "2001:660:4406:500:3:0::74",
+      "ip6": "2001:660:4406:500:3::74",
       "kavlan": true,
       "mac": "98:03:9b:b0:ba:e6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.244",
-      "ip6": "2001:660:4406:500:3:1::74",
+      "ip6": "2001:660:4406:500:3:1:0:74",
       "kavlan": true,
       "mac": "98:03:9b:b0:ba:e7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-117.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-117.json
index 1377b1b0d614287fce12fec81bacb484172346c9..a30ff616deb96e6434b2617307667eeb402c232f 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-117.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-117.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::75",
-      "kavlan-11": "2001:660:4406:1a0:503:0::75",
-      "kavlan-12": "2001:660:4406:2a0:503:0::75",
-      "kavlan-13": "2001:660:4406:4a0:503:0::75",
-      "kavlan-14": "2001:660:4406:5a0:503:0::75",
-      "kavlan-16": "2001:660:4406:7a0:503:0::75",
-      "kavlan-18": "2001:660:4406:8a0:503:0::75",
-      "kavlan-2": "2001:660:4406:581:3:0::75",
-      "kavlan-20": "2001:660:4406:3a0:503:0::75",
-      "kavlan-21": "2001:660:4406:6a0:503:0::75",
-      "kavlan-3": "2001:660:4406:582:3:0::75",
-      "kavlan-4": "2001:660:4406:590:3:0::75",
-      "kavlan-5": "2001:660:4406:591:3:0::75",
-      "kavlan-6": "2001:660:4406:592:3:0::75",
-      "kavlan-7": "2001:660:4406:593:3:0::75",
-      "kavlan-8": "2001:660:4406:594:3:0::75",
-      "kavlan-9": "2001:660:4406:595:3:0::75"
+      "kavlan-1": "2001:660:4406:580:3::75",
+      "kavlan-11": "2001:660:4406:1a0:503::75",
+      "kavlan-12": "2001:660:4406:2a0:503::75",
+      "kavlan-13": "2001:660:4406:4a0:503::75",
+      "kavlan-14": "2001:660:4406:5a0:503::75",
+      "kavlan-16": "2001:660:4406:7a0:503::75",
+      "kavlan-18": "2001:660:4406:8a0:503::75",
+      "kavlan-2": "2001:660:4406:581:3::75",
+      "kavlan-20": "2001:660:4406:3a0:503::75",
+      "kavlan-21": "2001:660:4406:6a0:503::75",
+      "kavlan-3": "2001:660:4406:582:3::75",
+      "kavlan-4": "2001:660:4406:590:3::75",
+      "kavlan-5": "2001:660:4406:591:3::75",
+      "kavlan-6": "2001:660:4406:592:3::75",
+      "kavlan-7": "2001:660:4406:593:3::75",
+      "kavlan-8": "2001:660:4406:594:3::75",
+      "kavlan-9": "2001:660:4406:595:3::75"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::75",
-      "kavlan-11": "2001:660:4406:1a0:503:1::75",
-      "kavlan-12": "2001:660:4406:2a0:503:1::75",
-      "kavlan-13": "2001:660:4406:4a0:503:1::75",
-      "kavlan-14": "2001:660:4406:5a0:503:1::75",
-      "kavlan-16": "2001:660:4406:7a0:503:1::75",
-      "kavlan-18": "2001:660:4406:8a0:503:1::75",
-      "kavlan-2": "2001:660:4406:581:3:1::75",
-      "kavlan-20": "2001:660:4406:3a0:503:1::75",
-      "kavlan-21": "2001:660:4406:6a0:503:1::75",
-      "kavlan-3": "2001:660:4406:582:3:1::75",
-      "kavlan-4": "2001:660:4406:590:3:1::75",
-      "kavlan-5": "2001:660:4406:591:3:1::75",
-      "kavlan-6": "2001:660:4406:592:3:1::75",
-      "kavlan-7": "2001:660:4406:593:3:1::75",
-      "kavlan-8": "2001:660:4406:594:3:1::75",
-      "kavlan-9": "2001:660:4406:595:3:1::75"
+      "kavlan-1": "2001:660:4406:580:3:1:0:75",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:75",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:75",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:75",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:75",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:75",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:75",
+      "kavlan-2": "2001:660:4406:581:3:1:0:75",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:75",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:75",
+      "kavlan-3": "2001:660:4406:582:3:1:0:75",
+      "kavlan-4": "2001:660:4406:590:3:1:0:75",
+      "kavlan-5": "2001:660:4406:591:3:1:0:75",
+      "kavlan-6": "2001:660:4406:592:3:1:0:75",
+      "kavlan-7": "2001:660:4406:593:3:1:0:75",
+      "kavlan-8": "2001:660:4406:594:3:1:0:75",
+      "kavlan-9": "2001:660:4406:595:3:1:0:75"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.117",
-      "ip6": "2001:660:4406:500:3:0::75",
+      "ip6": "2001:660:4406:500:3::75",
       "kavlan": true,
       "mac": "98:03:9b:b0:c8:e6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.245",
-      "ip6": "2001:660:4406:500:3:1::75",
+      "ip6": "2001:660:4406:500:3:1:0:75",
       "kavlan": true,
       "mac": "98:03:9b:b0:c8:e7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-118.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-118.json
index f43f33791798bed7a146fad1947bdb77a69becf5..85b3694de54797cbedadf726387bb7f3e24009b7 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-118.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-118.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::76",
-      "kavlan-11": "2001:660:4406:1a0:503:0::76",
-      "kavlan-12": "2001:660:4406:2a0:503:0::76",
-      "kavlan-13": "2001:660:4406:4a0:503:0::76",
-      "kavlan-14": "2001:660:4406:5a0:503:0::76",
-      "kavlan-16": "2001:660:4406:7a0:503:0::76",
-      "kavlan-18": "2001:660:4406:8a0:503:0::76",
-      "kavlan-2": "2001:660:4406:581:3:0::76",
-      "kavlan-20": "2001:660:4406:3a0:503:0::76",
-      "kavlan-21": "2001:660:4406:6a0:503:0::76",
-      "kavlan-3": "2001:660:4406:582:3:0::76",
-      "kavlan-4": "2001:660:4406:590:3:0::76",
-      "kavlan-5": "2001:660:4406:591:3:0::76",
-      "kavlan-6": "2001:660:4406:592:3:0::76",
-      "kavlan-7": "2001:660:4406:593:3:0::76",
-      "kavlan-8": "2001:660:4406:594:3:0::76",
-      "kavlan-9": "2001:660:4406:595:3:0::76"
+      "kavlan-1": "2001:660:4406:580:3::76",
+      "kavlan-11": "2001:660:4406:1a0:503::76",
+      "kavlan-12": "2001:660:4406:2a0:503::76",
+      "kavlan-13": "2001:660:4406:4a0:503::76",
+      "kavlan-14": "2001:660:4406:5a0:503::76",
+      "kavlan-16": "2001:660:4406:7a0:503::76",
+      "kavlan-18": "2001:660:4406:8a0:503::76",
+      "kavlan-2": "2001:660:4406:581:3::76",
+      "kavlan-20": "2001:660:4406:3a0:503::76",
+      "kavlan-21": "2001:660:4406:6a0:503::76",
+      "kavlan-3": "2001:660:4406:582:3::76",
+      "kavlan-4": "2001:660:4406:590:3::76",
+      "kavlan-5": "2001:660:4406:591:3::76",
+      "kavlan-6": "2001:660:4406:592:3::76",
+      "kavlan-7": "2001:660:4406:593:3::76",
+      "kavlan-8": "2001:660:4406:594:3::76",
+      "kavlan-9": "2001:660:4406:595:3::76"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::76",
-      "kavlan-11": "2001:660:4406:1a0:503:1::76",
-      "kavlan-12": "2001:660:4406:2a0:503:1::76",
-      "kavlan-13": "2001:660:4406:4a0:503:1::76",
-      "kavlan-14": "2001:660:4406:5a0:503:1::76",
-      "kavlan-16": "2001:660:4406:7a0:503:1::76",
-      "kavlan-18": "2001:660:4406:8a0:503:1::76",
-      "kavlan-2": "2001:660:4406:581:3:1::76",
-      "kavlan-20": "2001:660:4406:3a0:503:1::76",
-      "kavlan-21": "2001:660:4406:6a0:503:1::76",
-      "kavlan-3": "2001:660:4406:582:3:1::76",
-      "kavlan-4": "2001:660:4406:590:3:1::76",
-      "kavlan-5": "2001:660:4406:591:3:1::76",
-      "kavlan-6": "2001:660:4406:592:3:1::76",
-      "kavlan-7": "2001:660:4406:593:3:1::76",
-      "kavlan-8": "2001:660:4406:594:3:1::76",
-      "kavlan-9": "2001:660:4406:595:3:1::76"
+      "kavlan-1": "2001:660:4406:580:3:1:0:76",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:76",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:76",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:76",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:76",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:76",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:76",
+      "kavlan-2": "2001:660:4406:581:3:1:0:76",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:76",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:76",
+      "kavlan-3": "2001:660:4406:582:3:1:0:76",
+      "kavlan-4": "2001:660:4406:590:3:1:0:76",
+      "kavlan-5": "2001:660:4406:591:3:1:0:76",
+      "kavlan-6": "2001:660:4406:592:3:1:0:76",
+      "kavlan-7": "2001:660:4406:593:3:1:0:76",
+      "kavlan-8": "2001:660:4406:594:3:1:0:76",
+      "kavlan-9": "2001:660:4406:595:3:1:0:76"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.118",
-      "ip6": "2001:660:4406:500:3:0::76",
+      "ip6": "2001:660:4406:500:3::76",
       "kavlan": true,
       "mac": "98:03:9b:b0:63:92",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.246",
-      "ip6": "2001:660:4406:500:3:1::76",
+      "ip6": "2001:660:4406:500:3:1:0:76",
       "kavlan": true,
       "mac": "98:03:9b:b0:63:93",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-119.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-119.json
index 2a5f7a69fe30bf1bdf41f8d22a758ebc2657f1a0..327b7f1df13eed3f2acff4f804d4bf482caba511 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-119.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-119.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::77",
-      "kavlan-11": "2001:660:4406:1a0:503:0::77",
-      "kavlan-12": "2001:660:4406:2a0:503:0::77",
-      "kavlan-13": "2001:660:4406:4a0:503:0::77",
-      "kavlan-14": "2001:660:4406:5a0:503:0::77",
-      "kavlan-16": "2001:660:4406:7a0:503:0::77",
-      "kavlan-18": "2001:660:4406:8a0:503:0::77",
-      "kavlan-2": "2001:660:4406:581:3:0::77",
-      "kavlan-20": "2001:660:4406:3a0:503:0::77",
-      "kavlan-21": "2001:660:4406:6a0:503:0::77",
-      "kavlan-3": "2001:660:4406:582:3:0::77",
-      "kavlan-4": "2001:660:4406:590:3:0::77",
-      "kavlan-5": "2001:660:4406:591:3:0::77",
-      "kavlan-6": "2001:660:4406:592:3:0::77",
-      "kavlan-7": "2001:660:4406:593:3:0::77",
-      "kavlan-8": "2001:660:4406:594:3:0::77",
-      "kavlan-9": "2001:660:4406:595:3:0::77"
+      "kavlan-1": "2001:660:4406:580:3::77",
+      "kavlan-11": "2001:660:4406:1a0:503::77",
+      "kavlan-12": "2001:660:4406:2a0:503::77",
+      "kavlan-13": "2001:660:4406:4a0:503::77",
+      "kavlan-14": "2001:660:4406:5a0:503::77",
+      "kavlan-16": "2001:660:4406:7a0:503::77",
+      "kavlan-18": "2001:660:4406:8a0:503::77",
+      "kavlan-2": "2001:660:4406:581:3::77",
+      "kavlan-20": "2001:660:4406:3a0:503::77",
+      "kavlan-21": "2001:660:4406:6a0:503::77",
+      "kavlan-3": "2001:660:4406:582:3::77",
+      "kavlan-4": "2001:660:4406:590:3::77",
+      "kavlan-5": "2001:660:4406:591:3::77",
+      "kavlan-6": "2001:660:4406:592:3::77",
+      "kavlan-7": "2001:660:4406:593:3::77",
+      "kavlan-8": "2001:660:4406:594:3::77",
+      "kavlan-9": "2001:660:4406:595:3::77"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::77",
-      "kavlan-11": "2001:660:4406:1a0:503:1::77",
-      "kavlan-12": "2001:660:4406:2a0:503:1::77",
-      "kavlan-13": "2001:660:4406:4a0:503:1::77",
-      "kavlan-14": "2001:660:4406:5a0:503:1::77",
-      "kavlan-16": "2001:660:4406:7a0:503:1::77",
-      "kavlan-18": "2001:660:4406:8a0:503:1::77",
-      "kavlan-2": "2001:660:4406:581:3:1::77",
-      "kavlan-20": "2001:660:4406:3a0:503:1::77",
-      "kavlan-21": "2001:660:4406:6a0:503:1::77",
-      "kavlan-3": "2001:660:4406:582:3:1::77",
-      "kavlan-4": "2001:660:4406:590:3:1::77",
-      "kavlan-5": "2001:660:4406:591:3:1::77",
-      "kavlan-6": "2001:660:4406:592:3:1::77",
-      "kavlan-7": "2001:660:4406:593:3:1::77",
-      "kavlan-8": "2001:660:4406:594:3:1::77",
-      "kavlan-9": "2001:660:4406:595:3:1::77"
+      "kavlan-1": "2001:660:4406:580:3:1:0:77",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:77",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:77",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:77",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:77",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:77",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:77",
+      "kavlan-2": "2001:660:4406:581:3:1:0:77",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:77",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:77",
+      "kavlan-3": "2001:660:4406:582:3:1:0:77",
+      "kavlan-4": "2001:660:4406:590:3:1:0:77",
+      "kavlan-5": "2001:660:4406:591:3:1:0:77",
+      "kavlan-6": "2001:660:4406:592:3:1:0:77",
+      "kavlan-7": "2001:660:4406:593:3:1:0:77",
+      "kavlan-8": "2001:660:4406:594:3:1:0:77",
+      "kavlan-9": "2001:660:4406:595:3:1:0:77"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.119",
-      "ip6": "2001:660:4406:500:3:0::77",
+      "ip6": "2001:660:4406:500:3::77",
       "kavlan": true,
       "mac": "98:03:9b:b0:63:8a",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.247",
-      "ip6": "2001:660:4406:500:3:1::77",
+      "ip6": "2001:660:4406:500:3:1:0:77",
       "kavlan": true,
       "mac": "98:03:9b:b0:63:8b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-12.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-12.json
index 71ca8696ca2beec719a422709b7478ab5f5dfde8..b185f6c2bdde10e18555f932c822d2bb08870947 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-12.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-12.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::c",
-      "kavlan-11": "2001:660:4406:1a0:503:0::c",
-      "kavlan-12": "2001:660:4406:2a0:503:0::c",
-      "kavlan-13": "2001:660:4406:4a0:503:0::c",
-      "kavlan-14": "2001:660:4406:5a0:503:0::c",
-      "kavlan-16": "2001:660:4406:7a0:503:0::c",
-      "kavlan-18": "2001:660:4406:8a0:503:0::c",
-      "kavlan-2": "2001:660:4406:581:3:0::c",
-      "kavlan-20": "2001:660:4406:3a0:503:0::c",
-      "kavlan-21": "2001:660:4406:6a0:503:0::c",
-      "kavlan-3": "2001:660:4406:582:3:0::c",
-      "kavlan-4": "2001:660:4406:590:3:0::c",
-      "kavlan-5": "2001:660:4406:591:3:0::c",
-      "kavlan-6": "2001:660:4406:592:3:0::c",
-      "kavlan-7": "2001:660:4406:593:3:0::c",
-      "kavlan-8": "2001:660:4406:594:3:0::c",
-      "kavlan-9": "2001:660:4406:595:3:0::c"
+      "kavlan-1": "2001:660:4406:580:3::c",
+      "kavlan-11": "2001:660:4406:1a0:503::c",
+      "kavlan-12": "2001:660:4406:2a0:503::c",
+      "kavlan-13": "2001:660:4406:4a0:503::c",
+      "kavlan-14": "2001:660:4406:5a0:503::c",
+      "kavlan-16": "2001:660:4406:7a0:503::c",
+      "kavlan-18": "2001:660:4406:8a0:503::c",
+      "kavlan-2": "2001:660:4406:581:3::c",
+      "kavlan-20": "2001:660:4406:3a0:503::c",
+      "kavlan-21": "2001:660:4406:6a0:503::c",
+      "kavlan-3": "2001:660:4406:582:3::c",
+      "kavlan-4": "2001:660:4406:590:3::c",
+      "kavlan-5": "2001:660:4406:591:3::c",
+      "kavlan-6": "2001:660:4406:592:3::c",
+      "kavlan-7": "2001:660:4406:593:3::c",
+      "kavlan-8": "2001:660:4406:594:3::c",
+      "kavlan-9": "2001:660:4406:595:3::c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::c",
-      "kavlan-11": "2001:660:4406:1a0:503:1::c",
-      "kavlan-12": "2001:660:4406:2a0:503:1::c",
-      "kavlan-13": "2001:660:4406:4a0:503:1::c",
-      "kavlan-14": "2001:660:4406:5a0:503:1::c",
-      "kavlan-16": "2001:660:4406:7a0:503:1::c",
-      "kavlan-18": "2001:660:4406:8a0:503:1::c",
-      "kavlan-2": "2001:660:4406:581:3:1::c",
-      "kavlan-20": "2001:660:4406:3a0:503:1::c",
-      "kavlan-21": "2001:660:4406:6a0:503:1::c",
-      "kavlan-3": "2001:660:4406:582:3:1::c",
-      "kavlan-4": "2001:660:4406:590:3:1::c",
-      "kavlan-5": "2001:660:4406:591:3:1::c",
-      "kavlan-6": "2001:660:4406:592:3:1::c",
-      "kavlan-7": "2001:660:4406:593:3:1::c",
-      "kavlan-8": "2001:660:4406:594:3:1::c",
-      "kavlan-9": "2001:660:4406:595:3:1::c"
+      "kavlan-1": "2001:660:4406:580:3:1:0:c",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:c",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:c",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:c",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:c",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:c",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:c",
+      "kavlan-2": "2001:660:4406:581:3:1:0:c",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:c",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:c",
+      "kavlan-3": "2001:660:4406:582:3:1:0:c",
+      "kavlan-4": "2001:660:4406:590:3:1:0:c",
+      "kavlan-5": "2001:660:4406:591:3:1:0:c",
+      "kavlan-6": "2001:660:4406:592:3:1:0:c",
+      "kavlan-7": "2001:660:4406:593:3:1:0:c",
+      "kavlan-8": "2001:660:4406:594:3:1:0:c",
+      "kavlan-9": "2001:660:4406:595:3:1:0:c"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.12",
-      "ip6": "2001:660:4406:500:3:0::c",
+      "ip6": "2001:660:4406:500:3::c",
       "kavlan": true,
       "mac": "98:03:9b:b0:c6:26",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.140",
-      "ip6": "2001:660:4406:500:3:1::c",
+      "ip6": "2001:660:4406:500:3:1:0:c",
       "kavlan": true,
       "mac": "98:03:9b:b0:c6:27",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-120.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-120.json
index 18d3064ff41c8c2989e90ddc802a7a1ba37c4120..1ceab5ac8b9db5eee83e3f1119730a14ecf68008 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-120.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-120.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::78",
-      "kavlan-11": "2001:660:4406:1a0:503:0::78",
-      "kavlan-12": "2001:660:4406:2a0:503:0::78",
-      "kavlan-13": "2001:660:4406:4a0:503:0::78",
-      "kavlan-14": "2001:660:4406:5a0:503:0::78",
-      "kavlan-16": "2001:660:4406:7a0:503:0::78",
-      "kavlan-18": "2001:660:4406:8a0:503:0::78",
-      "kavlan-2": "2001:660:4406:581:3:0::78",
-      "kavlan-20": "2001:660:4406:3a0:503:0::78",
-      "kavlan-21": "2001:660:4406:6a0:503:0::78",
-      "kavlan-3": "2001:660:4406:582:3:0::78",
-      "kavlan-4": "2001:660:4406:590:3:0::78",
-      "kavlan-5": "2001:660:4406:591:3:0::78",
-      "kavlan-6": "2001:660:4406:592:3:0::78",
-      "kavlan-7": "2001:660:4406:593:3:0::78",
-      "kavlan-8": "2001:660:4406:594:3:0::78",
-      "kavlan-9": "2001:660:4406:595:3:0::78"
+      "kavlan-1": "2001:660:4406:580:3::78",
+      "kavlan-11": "2001:660:4406:1a0:503::78",
+      "kavlan-12": "2001:660:4406:2a0:503::78",
+      "kavlan-13": "2001:660:4406:4a0:503::78",
+      "kavlan-14": "2001:660:4406:5a0:503::78",
+      "kavlan-16": "2001:660:4406:7a0:503::78",
+      "kavlan-18": "2001:660:4406:8a0:503::78",
+      "kavlan-2": "2001:660:4406:581:3::78",
+      "kavlan-20": "2001:660:4406:3a0:503::78",
+      "kavlan-21": "2001:660:4406:6a0:503::78",
+      "kavlan-3": "2001:660:4406:582:3::78",
+      "kavlan-4": "2001:660:4406:590:3::78",
+      "kavlan-5": "2001:660:4406:591:3::78",
+      "kavlan-6": "2001:660:4406:592:3::78",
+      "kavlan-7": "2001:660:4406:593:3::78",
+      "kavlan-8": "2001:660:4406:594:3::78",
+      "kavlan-9": "2001:660:4406:595:3::78"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::78",
-      "kavlan-11": "2001:660:4406:1a0:503:1::78",
-      "kavlan-12": "2001:660:4406:2a0:503:1::78",
-      "kavlan-13": "2001:660:4406:4a0:503:1::78",
-      "kavlan-14": "2001:660:4406:5a0:503:1::78",
-      "kavlan-16": "2001:660:4406:7a0:503:1::78",
-      "kavlan-18": "2001:660:4406:8a0:503:1::78",
-      "kavlan-2": "2001:660:4406:581:3:1::78",
-      "kavlan-20": "2001:660:4406:3a0:503:1::78",
-      "kavlan-21": "2001:660:4406:6a0:503:1::78",
-      "kavlan-3": "2001:660:4406:582:3:1::78",
-      "kavlan-4": "2001:660:4406:590:3:1::78",
-      "kavlan-5": "2001:660:4406:591:3:1::78",
-      "kavlan-6": "2001:660:4406:592:3:1::78",
-      "kavlan-7": "2001:660:4406:593:3:1::78",
-      "kavlan-8": "2001:660:4406:594:3:1::78",
-      "kavlan-9": "2001:660:4406:595:3:1::78"
+      "kavlan-1": "2001:660:4406:580:3:1:0:78",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:78",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:78",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:78",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:78",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:78",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:78",
+      "kavlan-2": "2001:660:4406:581:3:1:0:78",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:78",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:78",
+      "kavlan-3": "2001:660:4406:582:3:1:0:78",
+      "kavlan-4": "2001:660:4406:590:3:1:0:78",
+      "kavlan-5": "2001:660:4406:591:3:1:0:78",
+      "kavlan-6": "2001:660:4406:592:3:1:0:78",
+      "kavlan-7": "2001:660:4406:593:3:1:0:78",
+      "kavlan-8": "2001:660:4406:594:3:1:0:78",
+      "kavlan-9": "2001:660:4406:595:3:1:0:78"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.120",
-      "ip6": "2001:660:4406:500:3:0::78",
+      "ip6": "2001:660:4406:500:3::78",
       "kavlan": true,
       "mac": "98:03:9b:b0:cc:b6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.248",
-      "ip6": "2001:660:4406:500:3:1::78",
+      "ip6": "2001:660:4406:500:3:1:0:78",
       "kavlan": true,
       "mac": "98:03:9b:b0:cc:b7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-121.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-121.json
index b888c1923f04882e766e5891f5350d2594b5a58c..20998700df3e291b062f70ba8d1c681bd91253e9 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-121.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-121.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::79",
-      "kavlan-11": "2001:660:4406:1a0:503:0::79",
-      "kavlan-12": "2001:660:4406:2a0:503:0::79",
-      "kavlan-13": "2001:660:4406:4a0:503:0::79",
-      "kavlan-14": "2001:660:4406:5a0:503:0::79",
-      "kavlan-16": "2001:660:4406:7a0:503:0::79",
-      "kavlan-18": "2001:660:4406:8a0:503:0::79",
-      "kavlan-2": "2001:660:4406:581:3:0::79",
-      "kavlan-20": "2001:660:4406:3a0:503:0::79",
-      "kavlan-21": "2001:660:4406:6a0:503:0::79",
-      "kavlan-3": "2001:660:4406:582:3:0::79",
-      "kavlan-4": "2001:660:4406:590:3:0::79",
-      "kavlan-5": "2001:660:4406:591:3:0::79",
-      "kavlan-6": "2001:660:4406:592:3:0::79",
-      "kavlan-7": "2001:660:4406:593:3:0::79",
-      "kavlan-8": "2001:660:4406:594:3:0::79",
-      "kavlan-9": "2001:660:4406:595:3:0::79"
+      "kavlan-1": "2001:660:4406:580:3::79",
+      "kavlan-11": "2001:660:4406:1a0:503::79",
+      "kavlan-12": "2001:660:4406:2a0:503::79",
+      "kavlan-13": "2001:660:4406:4a0:503::79",
+      "kavlan-14": "2001:660:4406:5a0:503::79",
+      "kavlan-16": "2001:660:4406:7a0:503::79",
+      "kavlan-18": "2001:660:4406:8a0:503::79",
+      "kavlan-2": "2001:660:4406:581:3::79",
+      "kavlan-20": "2001:660:4406:3a0:503::79",
+      "kavlan-21": "2001:660:4406:6a0:503::79",
+      "kavlan-3": "2001:660:4406:582:3::79",
+      "kavlan-4": "2001:660:4406:590:3::79",
+      "kavlan-5": "2001:660:4406:591:3::79",
+      "kavlan-6": "2001:660:4406:592:3::79",
+      "kavlan-7": "2001:660:4406:593:3::79",
+      "kavlan-8": "2001:660:4406:594:3::79",
+      "kavlan-9": "2001:660:4406:595:3::79"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::79",
-      "kavlan-11": "2001:660:4406:1a0:503:1::79",
-      "kavlan-12": "2001:660:4406:2a0:503:1::79",
-      "kavlan-13": "2001:660:4406:4a0:503:1::79",
-      "kavlan-14": "2001:660:4406:5a0:503:1::79",
-      "kavlan-16": "2001:660:4406:7a0:503:1::79",
-      "kavlan-18": "2001:660:4406:8a0:503:1::79",
-      "kavlan-2": "2001:660:4406:581:3:1::79",
-      "kavlan-20": "2001:660:4406:3a0:503:1::79",
-      "kavlan-21": "2001:660:4406:6a0:503:1::79",
-      "kavlan-3": "2001:660:4406:582:3:1::79",
-      "kavlan-4": "2001:660:4406:590:3:1::79",
-      "kavlan-5": "2001:660:4406:591:3:1::79",
-      "kavlan-6": "2001:660:4406:592:3:1::79",
-      "kavlan-7": "2001:660:4406:593:3:1::79",
-      "kavlan-8": "2001:660:4406:594:3:1::79",
-      "kavlan-9": "2001:660:4406:595:3:1::79"
+      "kavlan-1": "2001:660:4406:580:3:1:0:79",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:79",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:79",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:79",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:79",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:79",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:79",
+      "kavlan-2": "2001:660:4406:581:3:1:0:79",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:79",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:79",
+      "kavlan-3": "2001:660:4406:582:3:1:0:79",
+      "kavlan-4": "2001:660:4406:590:3:1:0:79",
+      "kavlan-5": "2001:660:4406:591:3:1:0:79",
+      "kavlan-6": "2001:660:4406:592:3:1:0:79",
+      "kavlan-7": "2001:660:4406:593:3:1:0:79",
+      "kavlan-8": "2001:660:4406:594:3:1:0:79",
+      "kavlan-9": "2001:660:4406:595:3:1:0:79"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.121",
-      "ip6": "2001:660:4406:500:3:0::79",
+      "ip6": "2001:660:4406:500:3::79",
       "kavlan": true,
       "mac": "98:03:9b:b0:d2:76",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.249",
-      "ip6": "2001:660:4406:500:3:1::79",
+      "ip6": "2001:660:4406:500:3:1:0:79",
       "kavlan": true,
       "mac": "98:03:9b:b0:d2:77",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-122.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-122.json
index 72af4baf2949c657466ed8cff5b623af41b8dcbb..0fd2cfe8b65dbf7a7fa3dc2c4107adce4d2d1225 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-122.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-122.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::7a",
-      "kavlan-11": "2001:660:4406:1a0:503:0::7a",
-      "kavlan-12": "2001:660:4406:2a0:503:0::7a",
-      "kavlan-13": "2001:660:4406:4a0:503:0::7a",
-      "kavlan-14": "2001:660:4406:5a0:503:0::7a",
-      "kavlan-16": "2001:660:4406:7a0:503:0::7a",
-      "kavlan-18": "2001:660:4406:8a0:503:0::7a",
-      "kavlan-2": "2001:660:4406:581:3:0::7a",
-      "kavlan-20": "2001:660:4406:3a0:503:0::7a",
-      "kavlan-21": "2001:660:4406:6a0:503:0::7a",
-      "kavlan-3": "2001:660:4406:582:3:0::7a",
-      "kavlan-4": "2001:660:4406:590:3:0::7a",
-      "kavlan-5": "2001:660:4406:591:3:0::7a",
-      "kavlan-6": "2001:660:4406:592:3:0::7a",
-      "kavlan-7": "2001:660:4406:593:3:0::7a",
-      "kavlan-8": "2001:660:4406:594:3:0::7a",
-      "kavlan-9": "2001:660:4406:595:3:0::7a"
+      "kavlan-1": "2001:660:4406:580:3::7a",
+      "kavlan-11": "2001:660:4406:1a0:503::7a",
+      "kavlan-12": "2001:660:4406:2a0:503::7a",
+      "kavlan-13": "2001:660:4406:4a0:503::7a",
+      "kavlan-14": "2001:660:4406:5a0:503::7a",
+      "kavlan-16": "2001:660:4406:7a0:503::7a",
+      "kavlan-18": "2001:660:4406:8a0:503::7a",
+      "kavlan-2": "2001:660:4406:581:3::7a",
+      "kavlan-20": "2001:660:4406:3a0:503::7a",
+      "kavlan-21": "2001:660:4406:6a0:503::7a",
+      "kavlan-3": "2001:660:4406:582:3::7a",
+      "kavlan-4": "2001:660:4406:590:3::7a",
+      "kavlan-5": "2001:660:4406:591:3::7a",
+      "kavlan-6": "2001:660:4406:592:3::7a",
+      "kavlan-7": "2001:660:4406:593:3::7a",
+      "kavlan-8": "2001:660:4406:594:3::7a",
+      "kavlan-9": "2001:660:4406:595:3::7a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::7a",
-      "kavlan-11": "2001:660:4406:1a0:503:1::7a",
-      "kavlan-12": "2001:660:4406:2a0:503:1::7a",
-      "kavlan-13": "2001:660:4406:4a0:503:1::7a",
-      "kavlan-14": "2001:660:4406:5a0:503:1::7a",
-      "kavlan-16": "2001:660:4406:7a0:503:1::7a",
-      "kavlan-18": "2001:660:4406:8a0:503:1::7a",
-      "kavlan-2": "2001:660:4406:581:3:1::7a",
-      "kavlan-20": "2001:660:4406:3a0:503:1::7a",
-      "kavlan-21": "2001:660:4406:6a0:503:1::7a",
-      "kavlan-3": "2001:660:4406:582:3:1::7a",
-      "kavlan-4": "2001:660:4406:590:3:1::7a",
-      "kavlan-5": "2001:660:4406:591:3:1::7a",
-      "kavlan-6": "2001:660:4406:592:3:1::7a",
-      "kavlan-7": "2001:660:4406:593:3:1::7a",
-      "kavlan-8": "2001:660:4406:594:3:1::7a",
-      "kavlan-9": "2001:660:4406:595:3:1::7a"
+      "kavlan-1": "2001:660:4406:580:3:1:0:7a",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:7a",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:7a",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:7a",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:7a",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:7a",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:7a",
+      "kavlan-2": "2001:660:4406:581:3:1:0:7a",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:7a",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:7a",
+      "kavlan-3": "2001:660:4406:582:3:1:0:7a",
+      "kavlan-4": "2001:660:4406:590:3:1:0:7a",
+      "kavlan-5": "2001:660:4406:591:3:1:0:7a",
+      "kavlan-6": "2001:660:4406:592:3:1:0:7a",
+      "kavlan-7": "2001:660:4406:593:3:1:0:7a",
+      "kavlan-8": "2001:660:4406:594:3:1:0:7a",
+      "kavlan-9": "2001:660:4406:595:3:1:0:7a"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.122",
-      "ip6": "2001:660:4406:500:3:0::7a",
+      "ip6": "2001:660:4406:500:3::7a",
       "kavlan": true,
       "mac": "98:03:9b:b0:63:da",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.250",
-      "ip6": "2001:660:4406:500:3:1::7a",
+      "ip6": "2001:660:4406:500:3:1:0:7a",
       "kavlan": true,
       "mac": "98:03:9b:b0:63:db",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-123.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-123.json
index 3c2d8664bd7cf9bbb3e7fcb10871b4f6c59ec52c..8ab8c7c505c9ab386c9836632774758d64354bbd 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-123.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-123.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::7b",
-      "kavlan-11": "2001:660:4406:1a0:503:0::7b",
-      "kavlan-12": "2001:660:4406:2a0:503:0::7b",
-      "kavlan-13": "2001:660:4406:4a0:503:0::7b",
-      "kavlan-14": "2001:660:4406:5a0:503:0::7b",
-      "kavlan-16": "2001:660:4406:7a0:503:0::7b",
-      "kavlan-18": "2001:660:4406:8a0:503:0::7b",
-      "kavlan-2": "2001:660:4406:581:3:0::7b",
-      "kavlan-20": "2001:660:4406:3a0:503:0::7b",
-      "kavlan-21": "2001:660:4406:6a0:503:0::7b",
-      "kavlan-3": "2001:660:4406:582:3:0::7b",
-      "kavlan-4": "2001:660:4406:590:3:0::7b",
-      "kavlan-5": "2001:660:4406:591:3:0::7b",
-      "kavlan-6": "2001:660:4406:592:3:0::7b",
-      "kavlan-7": "2001:660:4406:593:3:0::7b",
-      "kavlan-8": "2001:660:4406:594:3:0::7b",
-      "kavlan-9": "2001:660:4406:595:3:0::7b"
+      "kavlan-1": "2001:660:4406:580:3::7b",
+      "kavlan-11": "2001:660:4406:1a0:503::7b",
+      "kavlan-12": "2001:660:4406:2a0:503::7b",
+      "kavlan-13": "2001:660:4406:4a0:503::7b",
+      "kavlan-14": "2001:660:4406:5a0:503::7b",
+      "kavlan-16": "2001:660:4406:7a0:503::7b",
+      "kavlan-18": "2001:660:4406:8a0:503::7b",
+      "kavlan-2": "2001:660:4406:581:3::7b",
+      "kavlan-20": "2001:660:4406:3a0:503::7b",
+      "kavlan-21": "2001:660:4406:6a0:503::7b",
+      "kavlan-3": "2001:660:4406:582:3::7b",
+      "kavlan-4": "2001:660:4406:590:3::7b",
+      "kavlan-5": "2001:660:4406:591:3::7b",
+      "kavlan-6": "2001:660:4406:592:3::7b",
+      "kavlan-7": "2001:660:4406:593:3::7b",
+      "kavlan-8": "2001:660:4406:594:3::7b",
+      "kavlan-9": "2001:660:4406:595:3::7b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::7b",
-      "kavlan-11": "2001:660:4406:1a0:503:1::7b",
-      "kavlan-12": "2001:660:4406:2a0:503:1::7b",
-      "kavlan-13": "2001:660:4406:4a0:503:1::7b",
-      "kavlan-14": "2001:660:4406:5a0:503:1::7b",
-      "kavlan-16": "2001:660:4406:7a0:503:1::7b",
-      "kavlan-18": "2001:660:4406:8a0:503:1::7b",
-      "kavlan-2": "2001:660:4406:581:3:1::7b",
-      "kavlan-20": "2001:660:4406:3a0:503:1::7b",
-      "kavlan-21": "2001:660:4406:6a0:503:1::7b",
-      "kavlan-3": "2001:660:4406:582:3:1::7b",
-      "kavlan-4": "2001:660:4406:590:3:1::7b",
-      "kavlan-5": "2001:660:4406:591:3:1::7b",
-      "kavlan-6": "2001:660:4406:592:3:1::7b",
-      "kavlan-7": "2001:660:4406:593:3:1::7b",
-      "kavlan-8": "2001:660:4406:594:3:1::7b",
-      "kavlan-9": "2001:660:4406:595:3:1::7b"
+      "kavlan-1": "2001:660:4406:580:3:1:0:7b",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:7b",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:7b",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:7b",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:7b",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:7b",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:7b",
+      "kavlan-2": "2001:660:4406:581:3:1:0:7b",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:7b",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:7b",
+      "kavlan-3": "2001:660:4406:582:3:1:0:7b",
+      "kavlan-4": "2001:660:4406:590:3:1:0:7b",
+      "kavlan-5": "2001:660:4406:591:3:1:0:7b",
+      "kavlan-6": "2001:660:4406:592:3:1:0:7b",
+      "kavlan-7": "2001:660:4406:593:3:1:0:7b",
+      "kavlan-8": "2001:660:4406:594:3:1:0:7b",
+      "kavlan-9": "2001:660:4406:595:3:1:0:7b"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.123",
-      "ip6": "2001:660:4406:500:3:0::7b",
+      "ip6": "2001:660:4406:500:3::7b",
       "kavlan": true,
       "mac": "98:03:9b:b0:cc:be",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.251",
-      "ip6": "2001:660:4406:500:3:1::7b",
+      "ip6": "2001:660:4406:500:3:1:0:7b",
       "kavlan": true,
       "mac": "98:03:9b:b0:cc:bf",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-124.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-124.json
index 50421b0f3d41c523fbd17dfabaeec1ec34f1cf67..c91bcae0cb4b48cd999c2937ee9c565aa09cab32 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-124.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-124.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::7c",
-      "kavlan-11": "2001:660:4406:1a0:503:0::7c",
-      "kavlan-12": "2001:660:4406:2a0:503:0::7c",
-      "kavlan-13": "2001:660:4406:4a0:503:0::7c",
-      "kavlan-14": "2001:660:4406:5a0:503:0::7c",
-      "kavlan-16": "2001:660:4406:7a0:503:0::7c",
-      "kavlan-18": "2001:660:4406:8a0:503:0::7c",
-      "kavlan-2": "2001:660:4406:581:3:0::7c",
-      "kavlan-20": "2001:660:4406:3a0:503:0::7c",
-      "kavlan-21": "2001:660:4406:6a0:503:0::7c",
-      "kavlan-3": "2001:660:4406:582:3:0::7c",
-      "kavlan-4": "2001:660:4406:590:3:0::7c",
-      "kavlan-5": "2001:660:4406:591:3:0::7c",
-      "kavlan-6": "2001:660:4406:592:3:0::7c",
-      "kavlan-7": "2001:660:4406:593:3:0::7c",
-      "kavlan-8": "2001:660:4406:594:3:0::7c",
-      "kavlan-9": "2001:660:4406:595:3:0::7c"
+      "kavlan-1": "2001:660:4406:580:3::7c",
+      "kavlan-11": "2001:660:4406:1a0:503::7c",
+      "kavlan-12": "2001:660:4406:2a0:503::7c",
+      "kavlan-13": "2001:660:4406:4a0:503::7c",
+      "kavlan-14": "2001:660:4406:5a0:503::7c",
+      "kavlan-16": "2001:660:4406:7a0:503::7c",
+      "kavlan-18": "2001:660:4406:8a0:503::7c",
+      "kavlan-2": "2001:660:4406:581:3::7c",
+      "kavlan-20": "2001:660:4406:3a0:503::7c",
+      "kavlan-21": "2001:660:4406:6a0:503::7c",
+      "kavlan-3": "2001:660:4406:582:3::7c",
+      "kavlan-4": "2001:660:4406:590:3::7c",
+      "kavlan-5": "2001:660:4406:591:3::7c",
+      "kavlan-6": "2001:660:4406:592:3::7c",
+      "kavlan-7": "2001:660:4406:593:3::7c",
+      "kavlan-8": "2001:660:4406:594:3::7c",
+      "kavlan-9": "2001:660:4406:595:3::7c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::7c",
-      "kavlan-11": "2001:660:4406:1a0:503:1::7c",
-      "kavlan-12": "2001:660:4406:2a0:503:1::7c",
-      "kavlan-13": "2001:660:4406:4a0:503:1::7c",
-      "kavlan-14": "2001:660:4406:5a0:503:1::7c",
-      "kavlan-16": "2001:660:4406:7a0:503:1::7c",
-      "kavlan-18": "2001:660:4406:8a0:503:1::7c",
-      "kavlan-2": "2001:660:4406:581:3:1::7c",
-      "kavlan-20": "2001:660:4406:3a0:503:1::7c",
-      "kavlan-21": "2001:660:4406:6a0:503:1::7c",
-      "kavlan-3": "2001:660:4406:582:3:1::7c",
-      "kavlan-4": "2001:660:4406:590:3:1::7c",
-      "kavlan-5": "2001:660:4406:591:3:1::7c",
-      "kavlan-6": "2001:660:4406:592:3:1::7c",
-      "kavlan-7": "2001:660:4406:593:3:1::7c",
-      "kavlan-8": "2001:660:4406:594:3:1::7c",
-      "kavlan-9": "2001:660:4406:595:3:1::7c"
+      "kavlan-1": "2001:660:4406:580:3:1:0:7c",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:7c",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:7c",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:7c",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:7c",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:7c",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:7c",
+      "kavlan-2": "2001:660:4406:581:3:1:0:7c",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:7c",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:7c",
+      "kavlan-3": "2001:660:4406:582:3:1:0:7c",
+      "kavlan-4": "2001:660:4406:590:3:1:0:7c",
+      "kavlan-5": "2001:660:4406:591:3:1:0:7c",
+      "kavlan-6": "2001:660:4406:592:3:1:0:7c",
+      "kavlan-7": "2001:660:4406:593:3:1:0:7c",
+      "kavlan-8": "2001:660:4406:594:3:1:0:7c",
+      "kavlan-9": "2001:660:4406:595:3:1:0:7c"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.124",
-      "ip6": "2001:660:4406:500:3:0::7c",
+      "ip6": "2001:660:4406:500:3::7c",
       "kavlan": true,
       "mac": "98:03:9b:b0:99:7a",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.252",
-      "ip6": "2001:660:4406:500:3:1::7c",
+      "ip6": "2001:660:4406:500:3:1:0:7c",
       "kavlan": true,
       "mac": "98:03:9b:b0:99:7b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-13.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-13.json
index 5d2c0090adbcb8985831d468facd054f36ff2551..e82bcba8b7a0a29f48d016355065282bee2b4b86 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-13.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-13.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::d",
-      "kavlan-11": "2001:660:4406:1a0:503:0::d",
-      "kavlan-12": "2001:660:4406:2a0:503:0::d",
-      "kavlan-13": "2001:660:4406:4a0:503:0::d",
-      "kavlan-14": "2001:660:4406:5a0:503:0::d",
-      "kavlan-16": "2001:660:4406:7a0:503:0::d",
-      "kavlan-18": "2001:660:4406:8a0:503:0::d",
-      "kavlan-2": "2001:660:4406:581:3:0::d",
-      "kavlan-20": "2001:660:4406:3a0:503:0::d",
-      "kavlan-21": "2001:660:4406:6a0:503:0::d",
-      "kavlan-3": "2001:660:4406:582:3:0::d",
-      "kavlan-4": "2001:660:4406:590:3:0::d",
-      "kavlan-5": "2001:660:4406:591:3:0::d",
-      "kavlan-6": "2001:660:4406:592:3:0::d",
-      "kavlan-7": "2001:660:4406:593:3:0::d",
-      "kavlan-8": "2001:660:4406:594:3:0::d",
-      "kavlan-9": "2001:660:4406:595:3:0::d"
+      "kavlan-1": "2001:660:4406:580:3::d",
+      "kavlan-11": "2001:660:4406:1a0:503::d",
+      "kavlan-12": "2001:660:4406:2a0:503::d",
+      "kavlan-13": "2001:660:4406:4a0:503::d",
+      "kavlan-14": "2001:660:4406:5a0:503::d",
+      "kavlan-16": "2001:660:4406:7a0:503::d",
+      "kavlan-18": "2001:660:4406:8a0:503::d",
+      "kavlan-2": "2001:660:4406:581:3::d",
+      "kavlan-20": "2001:660:4406:3a0:503::d",
+      "kavlan-21": "2001:660:4406:6a0:503::d",
+      "kavlan-3": "2001:660:4406:582:3::d",
+      "kavlan-4": "2001:660:4406:590:3::d",
+      "kavlan-5": "2001:660:4406:591:3::d",
+      "kavlan-6": "2001:660:4406:592:3::d",
+      "kavlan-7": "2001:660:4406:593:3::d",
+      "kavlan-8": "2001:660:4406:594:3::d",
+      "kavlan-9": "2001:660:4406:595:3::d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::d",
-      "kavlan-11": "2001:660:4406:1a0:503:1::d",
-      "kavlan-12": "2001:660:4406:2a0:503:1::d",
-      "kavlan-13": "2001:660:4406:4a0:503:1::d",
-      "kavlan-14": "2001:660:4406:5a0:503:1::d",
-      "kavlan-16": "2001:660:4406:7a0:503:1::d",
-      "kavlan-18": "2001:660:4406:8a0:503:1::d",
-      "kavlan-2": "2001:660:4406:581:3:1::d",
-      "kavlan-20": "2001:660:4406:3a0:503:1::d",
-      "kavlan-21": "2001:660:4406:6a0:503:1::d",
-      "kavlan-3": "2001:660:4406:582:3:1::d",
-      "kavlan-4": "2001:660:4406:590:3:1::d",
-      "kavlan-5": "2001:660:4406:591:3:1::d",
-      "kavlan-6": "2001:660:4406:592:3:1::d",
-      "kavlan-7": "2001:660:4406:593:3:1::d",
-      "kavlan-8": "2001:660:4406:594:3:1::d",
-      "kavlan-9": "2001:660:4406:595:3:1::d"
+      "kavlan-1": "2001:660:4406:580:3:1:0:d",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:d",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:d",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:d",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:d",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:d",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:d",
+      "kavlan-2": "2001:660:4406:581:3:1:0:d",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:d",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:d",
+      "kavlan-3": "2001:660:4406:582:3:1:0:d",
+      "kavlan-4": "2001:660:4406:590:3:1:0:d",
+      "kavlan-5": "2001:660:4406:591:3:1:0:d",
+      "kavlan-6": "2001:660:4406:592:3:1:0:d",
+      "kavlan-7": "2001:660:4406:593:3:1:0:d",
+      "kavlan-8": "2001:660:4406:594:3:1:0:d",
+      "kavlan-9": "2001:660:4406:595:3:1:0:d"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.13",
-      "ip6": "2001:660:4406:500:3:0::d",
+      "ip6": "2001:660:4406:500:3::d",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:66",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.141",
-      "ip6": "2001:660:4406:500:3:1::d",
+      "ip6": "2001:660:4406:500:3:1:0:d",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:67",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-14.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-14.json
index 80dc22c2e40e90517e0fdbebf470a1d9b696fb0b..ff577cb6f070eceafa1e75df55869edf577d95b3 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-14.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-14.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::e",
-      "kavlan-11": "2001:660:4406:1a0:503:0::e",
-      "kavlan-12": "2001:660:4406:2a0:503:0::e",
-      "kavlan-13": "2001:660:4406:4a0:503:0::e",
-      "kavlan-14": "2001:660:4406:5a0:503:0::e",
-      "kavlan-16": "2001:660:4406:7a0:503:0::e",
-      "kavlan-18": "2001:660:4406:8a0:503:0::e",
-      "kavlan-2": "2001:660:4406:581:3:0::e",
-      "kavlan-20": "2001:660:4406:3a0:503:0::e",
-      "kavlan-21": "2001:660:4406:6a0:503:0::e",
-      "kavlan-3": "2001:660:4406:582:3:0::e",
-      "kavlan-4": "2001:660:4406:590:3:0::e",
-      "kavlan-5": "2001:660:4406:591:3:0::e",
-      "kavlan-6": "2001:660:4406:592:3:0::e",
-      "kavlan-7": "2001:660:4406:593:3:0::e",
-      "kavlan-8": "2001:660:4406:594:3:0::e",
-      "kavlan-9": "2001:660:4406:595:3:0::e"
+      "kavlan-1": "2001:660:4406:580:3::e",
+      "kavlan-11": "2001:660:4406:1a0:503::e",
+      "kavlan-12": "2001:660:4406:2a0:503::e",
+      "kavlan-13": "2001:660:4406:4a0:503::e",
+      "kavlan-14": "2001:660:4406:5a0:503::e",
+      "kavlan-16": "2001:660:4406:7a0:503::e",
+      "kavlan-18": "2001:660:4406:8a0:503::e",
+      "kavlan-2": "2001:660:4406:581:3::e",
+      "kavlan-20": "2001:660:4406:3a0:503::e",
+      "kavlan-21": "2001:660:4406:6a0:503::e",
+      "kavlan-3": "2001:660:4406:582:3::e",
+      "kavlan-4": "2001:660:4406:590:3::e",
+      "kavlan-5": "2001:660:4406:591:3::e",
+      "kavlan-6": "2001:660:4406:592:3::e",
+      "kavlan-7": "2001:660:4406:593:3::e",
+      "kavlan-8": "2001:660:4406:594:3::e",
+      "kavlan-9": "2001:660:4406:595:3::e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::e",
-      "kavlan-11": "2001:660:4406:1a0:503:1::e",
-      "kavlan-12": "2001:660:4406:2a0:503:1::e",
-      "kavlan-13": "2001:660:4406:4a0:503:1::e",
-      "kavlan-14": "2001:660:4406:5a0:503:1::e",
-      "kavlan-16": "2001:660:4406:7a0:503:1::e",
-      "kavlan-18": "2001:660:4406:8a0:503:1::e",
-      "kavlan-2": "2001:660:4406:581:3:1::e",
-      "kavlan-20": "2001:660:4406:3a0:503:1::e",
-      "kavlan-21": "2001:660:4406:6a0:503:1::e",
-      "kavlan-3": "2001:660:4406:582:3:1::e",
-      "kavlan-4": "2001:660:4406:590:3:1::e",
-      "kavlan-5": "2001:660:4406:591:3:1::e",
-      "kavlan-6": "2001:660:4406:592:3:1::e",
-      "kavlan-7": "2001:660:4406:593:3:1::e",
-      "kavlan-8": "2001:660:4406:594:3:1::e",
-      "kavlan-9": "2001:660:4406:595:3:1::e"
+      "kavlan-1": "2001:660:4406:580:3:1:0:e",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:e",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:e",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:e",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:e",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:e",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:e",
+      "kavlan-2": "2001:660:4406:581:3:1:0:e",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:e",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:e",
+      "kavlan-3": "2001:660:4406:582:3:1:0:e",
+      "kavlan-4": "2001:660:4406:590:3:1:0:e",
+      "kavlan-5": "2001:660:4406:591:3:1:0:e",
+      "kavlan-6": "2001:660:4406:592:3:1:0:e",
+      "kavlan-7": "2001:660:4406:593:3:1:0:e",
+      "kavlan-8": "2001:660:4406:594:3:1:0:e",
+      "kavlan-9": "2001:660:4406:595:3:1:0:e"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.14",
-      "ip6": "2001:660:4406:500:3:0::e",
+      "ip6": "2001:660:4406:500:3::e",
       "kavlan": true,
       "mac": "98:03:9b:b0:c8:8e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.142",
-      "ip6": "2001:660:4406:500:3:1::e",
+      "ip6": "2001:660:4406:500:3:1:0:e",
       "kavlan": true,
       "mac": "98:03:9b:b0:c8:8f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-15.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-15.json
index 2193a6479708f6ceb4cbdcb387b504d77978fc43..2dbd3585b107bfcfd8096edc254a10f7fe14de03 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-15.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-15.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::f",
-      "kavlan-11": "2001:660:4406:1a0:503:0::f",
-      "kavlan-12": "2001:660:4406:2a0:503:0::f",
-      "kavlan-13": "2001:660:4406:4a0:503:0::f",
-      "kavlan-14": "2001:660:4406:5a0:503:0::f",
-      "kavlan-16": "2001:660:4406:7a0:503:0::f",
-      "kavlan-18": "2001:660:4406:8a0:503:0::f",
-      "kavlan-2": "2001:660:4406:581:3:0::f",
-      "kavlan-20": "2001:660:4406:3a0:503:0::f",
-      "kavlan-21": "2001:660:4406:6a0:503:0::f",
-      "kavlan-3": "2001:660:4406:582:3:0::f",
-      "kavlan-4": "2001:660:4406:590:3:0::f",
-      "kavlan-5": "2001:660:4406:591:3:0::f",
-      "kavlan-6": "2001:660:4406:592:3:0::f",
-      "kavlan-7": "2001:660:4406:593:3:0::f",
-      "kavlan-8": "2001:660:4406:594:3:0::f",
-      "kavlan-9": "2001:660:4406:595:3:0::f"
+      "kavlan-1": "2001:660:4406:580:3::f",
+      "kavlan-11": "2001:660:4406:1a0:503::f",
+      "kavlan-12": "2001:660:4406:2a0:503::f",
+      "kavlan-13": "2001:660:4406:4a0:503::f",
+      "kavlan-14": "2001:660:4406:5a0:503::f",
+      "kavlan-16": "2001:660:4406:7a0:503::f",
+      "kavlan-18": "2001:660:4406:8a0:503::f",
+      "kavlan-2": "2001:660:4406:581:3::f",
+      "kavlan-20": "2001:660:4406:3a0:503::f",
+      "kavlan-21": "2001:660:4406:6a0:503::f",
+      "kavlan-3": "2001:660:4406:582:3::f",
+      "kavlan-4": "2001:660:4406:590:3::f",
+      "kavlan-5": "2001:660:4406:591:3::f",
+      "kavlan-6": "2001:660:4406:592:3::f",
+      "kavlan-7": "2001:660:4406:593:3::f",
+      "kavlan-8": "2001:660:4406:594:3::f",
+      "kavlan-9": "2001:660:4406:595:3::f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::f",
-      "kavlan-11": "2001:660:4406:1a0:503:1::f",
-      "kavlan-12": "2001:660:4406:2a0:503:1::f",
-      "kavlan-13": "2001:660:4406:4a0:503:1::f",
-      "kavlan-14": "2001:660:4406:5a0:503:1::f",
-      "kavlan-16": "2001:660:4406:7a0:503:1::f",
-      "kavlan-18": "2001:660:4406:8a0:503:1::f",
-      "kavlan-2": "2001:660:4406:581:3:1::f",
-      "kavlan-20": "2001:660:4406:3a0:503:1::f",
-      "kavlan-21": "2001:660:4406:6a0:503:1::f",
-      "kavlan-3": "2001:660:4406:582:3:1::f",
-      "kavlan-4": "2001:660:4406:590:3:1::f",
-      "kavlan-5": "2001:660:4406:591:3:1::f",
-      "kavlan-6": "2001:660:4406:592:3:1::f",
-      "kavlan-7": "2001:660:4406:593:3:1::f",
-      "kavlan-8": "2001:660:4406:594:3:1::f",
-      "kavlan-9": "2001:660:4406:595:3:1::f"
+      "kavlan-1": "2001:660:4406:580:3:1:0:f",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:f",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:f",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:f",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:f",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:f",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:f",
+      "kavlan-2": "2001:660:4406:581:3:1:0:f",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:f",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:f",
+      "kavlan-3": "2001:660:4406:582:3:1:0:f",
+      "kavlan-4": "2001:660:4406:590:3:1:0:f",
+      "kavlan-5": "2001:660:4406:591:3:1:0:f",
+      "kavlan-6": "2001:660:4406:592:3:1:0:f",
+      "kavlan-7": "2001:660:4406:593:3:1:0:f",
+      "kavlan-8": "2001:660:4406:594:3:1:0:f",
+      "kavlan-9": "2001:660:4406:595:3:1:0:f"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.15",
-      "ip6": "2001:660:4406:500:3:0::f",
+      "ip6": "2001:660:4406:500:3::f",
       "kavlan": true,
       "mac": "98:03:9b:b0:c9:be",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.143",
-      "ip6": "2001:660:4406:500:3:1::f",
+      "ip6": "2001:660:4406:500:3:1:0:f",
       "kavlan": true,
       "mac": "98:03:9b:b0:c9:bf",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-16.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-16.json
index ab7bdedebbac7e3bf875c5b56ec58e844559403a..56d95a275add8f74fdf25d9e4e427d0f0d7a96b4 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-16.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-16.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::10",
-      "kavlan-11": "2001:660:4406:1a0:503:0::10",
-      "kavlan-12": "2001:660:4406:2a0:503:0::10",
-      "kavlan-13": "2001:660:4406:4a0:503:0::10",
-      "kavlan-14": "2001:660:4406:5a0:503:0::10",
-      "kavlan-16": "2001:660:4406:7a0:503:0::10",
-      "kavlan-18": "2001:660:4406:8a0:503:0::10",
-      "kavlan-2": "2001:660:4406:581:3:0::10",
-      "kavlan-20": "2001:660:4406:3a0:503:0::10",
-      "kavlan-21": "2001:660:4406:6a0:503:0::10",
-      "kavlan-3": "2001:660:4406:582:3:0::10",
-      "kavlan-4": "2001:660:4406:590:3:0::10",
-      "kavlan-5": "2001:660:4406:591:3:0::10",
-      "kavlan-6": "2001:660:4406:592:3:0::10",
-      "kavlan-7": "2001:660:4406:593:3:0::10",
-      "kavlan-8": "2001:660:4406:594:3:0::10",
-      "kavlan-9": "2001:660:4406:595:3:0::10"
+      "kavlan-1": "2001:660:4406:580:3::10",
+      "kavlan-11": "2001:660:4406:1a0:503::10",
+      "kavlan-12": "2001:660:4406:2a0:503::10",
+      "kavlan-13": "2001:660:4406:4a0:503::10",
+      "kavlan-14": "2001:660:4406:5a0:503::10",
+      "kavlan-16": "2001:660:4406:7a0:503::10",
+      "kavlan-18": "2001:660:4406:8a0:503::10",
+      "kavlan-2": "2001:660:4406:581:3::10",
+      "kavlan-20": "2001:660:4406:3a0:503::10",
+      "kavlan-21": "2001:660:4406:6a0:503::10",
+      "kavlan-3": "2001:660:4406:582:3::10",
+      "kavlan-4": "2001:660:4406:590:3::10",
+      "kavlan-5": "2001:660:4406:591:3::10",
+      "kavlan-6": "2001:660:4406:592:3::10",
+      "kavlan-7": "2001:660:4406:593:3::10",
+      "kavlan-8": "2001:660:4406:594:3::10",
+      "kavlan-9": "2001:660:4406:595:3::10"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::10",
-      "kavlan-11": "2001:660:4406:1a0:503:1::10",
-      "kavlan-12": "2001:660:4406:2a0:503:1::10",
-      "kavlan-13": "2001:660:4406:4a0:503:1::10",
-      "kavlan-14": "2001:660:4406:5a0:503:1::10",
-      "kavlan-16": "2001:660:4406:7a0:503:1::10",
-      "kavlan-18": "2001:660:4406:8a0:503:1::10",
-      "kavlan-2": "2001:660:4406:581:3:1::10",
-      "kavlan-20": "2001:660:4406:3a0:503:1::10",
-      "kavlan-21": "2001:660:4406:6a0:503:1::10",
-      "kavlan-3": "2001:660:4406:582:3:1::10",
-      "kavlan-4": "2001:660:4406:590:3:1::10",
-      "kavlan-5": "2001:660:4406:591:3:1::10",
-      "kavlan-6": "2001:660:4406:592:3:1::10",
-      "kavlan-7": "2001:660:4406:593:3:1::10",
-      "kavlan-8": "2001:660:4406:594:3:1::10",
-      "kavlan-9": "2001:660:4406:595:3:1::10"
+      "kavlan-1": "2001:660:4406:580:3:1:0:10",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:10",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:10",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:10",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:10",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:10",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:10",
+      "kavlan-2": "2001:660:4406:581:3:1:0:10",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:10",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:10",
+      "kavlan-3": "2001:660:4406:582:3:1:0:10",
+      "kavlan-4": "2001:660:4406:590:3:1:0:10",
+      "kavlan-5": "2001:660:4406:591:3:1:0:10",
+      "kavlan-6": "2001:660:4406:592:3:1:0:10",
+      "kavlan-7": "2001:660:4406:593:3:1:0:10",
+      "kavlan-8": "2001:660:4406:594:3:1:0:10",
+      "kavlan-9": "2001:660:4406:595:3:1:0:10"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.16",
-      "ip6": "2001:660:4406:500:3:0::10",
+      "ip6": "2001:660:4406:500:3::10",
       "kavlan": true,
       "mac": "98:03:9b:b0:9b:6a",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.144",
-      "ip6": "2001:660:4406:500:3:1::10",
+      "ip6": "2001:660:4406:500:3:1:0:10",
       "kavlan": true,
       "mac": "98:03:9b:b0:9b:6b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-17.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-17.json
index ef69e96df29bdebb387a51acd1f8286fe1191871..59a3be0a49daae049e2cd3b18cea0e65b2e842b5 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-17.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-17.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::11",
-      "kavlan-11": "2001:660:4406:1a0:503:0::11",
-      "kavlan-12": "2001:660:4406:2a0:503:0::11",
-      "kavlan-13": "2001:660:4406:4a0:503:0::11",
-      "kavlan-14": "2001:660:4406:5a0:503:0::11",
-      "kavlan-16": "2001:660:4406:7a0:503:0::11",
-      "kavlan-18": "2001:660:4406:8a0:503:0::11",
-      "kavlan-2": "2001:660:4406:581:3:0::11",
-      "kavlan-20": "2001:660:4406:3a0:503:0::11",
-      "kavlan-21": "2001:660:4406:6a0:503:0::11",
-      "kavlan-3": "2001:660:4406:582:3:0::11",
-      "kavlan-4": "2001:660:4406:590:3:0::11",
-      "kavlan-5": "2001:660:4406:591:3:0::11",
-      "kavlan-6": "2001:660:4406:592:3:0::11",
-      "kavlan-7": "2001:660:4406:593:3:0::11",
-      "kavlan-8": "2001:660:4406:594:3:0::11",
-      "kavlan-9": "2001:660:4406:595:3:0::11"
+      "kavlan-1": "2001:660:4406:580:3::11",
+      "kavlan-11": "2001:660:4406:1a0:503::11",
+      "kavlan-12": "2001:660:4406:2a0:503::11",
+      "kavlan-13": "2001:660:4406:4a0:503::11",
+      "kavlan-14": "2001:660:4406:5a0:503::11",
+      "kavlan-16": "2001:660:4406:7a0:503::11",
+      "kavlan-18": "2001:660:4406:8a0:503::11",
+      "kavlan-2": "2001:660:4406:581:3::11",
+      "kavlan-20": "2001:660:4406:3a0:503::11",
+      "kavlan-21": "2001:660:4406:6a0:503::11",
+      "kavlan-3": "2001:660:4406:582:3::11",
+      "kavlan-4": "2001:660:4406:590:3::11",
+      "kavlan-5": "2001:660:4406:591:3::11",
+      "kavlan-6": "2001:660:4406:592:3::11",
+      "kavlan-7": "2001:660:4406:593:3::11",
+      "kavlan-8": "2001:660:4406:594:3::11",
+      "kavlan-9": "2001:660:4406:595:3::11"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::11",
-      "kavlan-11": "2001:660:4406:1a0:503:1::11",
-      "kavlan-12": "2001:660:4406:2a0:503:1::11",
-      "kavlan-13": "2001:660:4406:4a0:503:1::11",
-      "kavlan-14": "2001:660:4406:5a0:503:1::11",
-      "kavlan-16": "2001:660:4406:7a0:503:1::11",
-      "kavlan-18": "2001:660:4406:8a0:503:1::11",
-      "kavlan-2": "2001:660:4406:581:3:1::11",
-      "kavlan-20": "2001:660:4406:3a0:503:1::11",
-      "kavlan-21": "2001:660:4406:6a0:503:1::11",
-      "kavlan-3": "2001:660:4406:582:3:1::11",
-      "kavlan-4": "2001:660:4406:590:3:1::11",
-      "kavlan-5": "2001:660:4406:591:3:1::11",
-      "kavlan-6": "2001:660:4406:592:3:1::11",
-      "kavlan-7": "2001:660:4406:593:3:1::11",
-      "kavlan-8": "2001:660:4406:594:3:1::11",
-      "kavlan-9": "2001:660:4406:595:3:1::11"
+      "kavlan-1": "2001:660:4406:580:3:1:0:11",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:11",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:11",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:11",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:11",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:11",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:11",
+      "kavlan-2": "2001:660:4406:581:3:1:0:11",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:11",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:11",
+      "kavlan-3": "2001:660:4406:582:3:1:0:11",
+      "kavlan-4": "2001:660:4406:590:3:1:0:11",
+      "kavlan-5": "2001:660:4406:591:3:1:0:11",
+      "kavlan-6": "2001:660:4406:592:3:1:0:11",
+      "kavlan-7": "2001:660:4406:593:3:1:0:11",
+      "kavlan-8": "2001:660:4406:594:3:1:0:11",
+      "kavlan-9": "2001:660:4406:595:3:1:0:11"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.17",
-      "ip6": "2001:660:4406:500:3:0::11",
+      "ip6": "2001:660:4406:500:3::11",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:3a",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.145",
-      "ip6": "2001:660:4406:500:3:1::11",
+      "ip6": "2001:660:4406:500:3:1:0:11",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:3b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-18.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-18.json
index 2b59b8b1e9e119e0f25b958dc1f3b0ee1a2b6465..00476f826bad94aeb666fa051373ecb0df47da41 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-18.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-18.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::12",
-      "kavlan-11": "2001:660:4406:1a0:503:0::12",
-      "kavlan-12": "2001:660:4406:2a0:503:0::12",
-      "kavlan-13": "2001:660:4406:4a0:503:0::12",
-      "kavlan-14": "2001:660:4406:5a0:503:0::12",
-      "kavlan-16": "2001:660:4406:7a0:503:0::12",
-      "kavlan-18": "2001:660:4406:8a0:503:0::12",
-      "kavlan-2": "2001:660:4406:581:3:0::12",
-      "kavlan-20": "2001:660:4406:3a0:503:0::12",
-      "kavlan-21": "2001:660:4406:6a0:503:0::12",
-      "kavlan-3": "2001:660:4406:582:3:0::12",
-      "kavlan-4": "2001:660:4406:590:3:0::12",
-      "kavlan-5": "2001:660:4406:591:3:0::12",
-      "kavlan-6": "2001:660:4406:592:3:0::12",
-      "kavlan-7": "2001:660:4406:593:3:0::12",
-      "kavlan-8": "2001:660:4406:594:3:0::12",
-      "kavlan-9": "2001:660:4406:595:3:0::12"
+      "kavlan-1": "2001:660:4406:580:3::12",
+      "kavlan-11": "2001:660:4406:1a0:503::12",
+      "kavlan-12": "2001:660:4406:2a0:503::12",
+      "kavlan-13": "2001:660:4406:4a0:503::12",
+      "kavlan-14": "2001:660:4406:5a0:503::12",
+      "kavlan-16": "2001:660:4406:7a0:503::12",
+      "kavlan-18": "2001:660:4406:8a0:503::12",
+      "kavlan-2": "2001:660:4406:581:3::12",
+      "kavlan-20": "2001:660:4406:3a0:503::12",
+      "kavlan-21": "2001:660:4406:6a0:503::12",
+      "kavlan-3": "2001:660:4406:582:3::12",
+      "kavlan-4": "2001:660:4406:590:3::12",
+      "kavlan-5": "2001:660:4406:591:3::12",
+      "kavlan-6": "2001:660:4406:592:3::12",
+      "kavlan-7": "2001:660:4406:593:3::12",
+      "kavlan-8": "2001:660:4406:594:3::12",
+      "kavlan-9": "2001:660:4406:595:3::12"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::12",
-      "kavlan-11": "2001:660:4406:1a0:503:1::12",
-      "kavlan-12": "2001:660:4406:2a0:503:1::12",
-      "kavlan-13": "2001:660:4406:4a0:503:1::12",
-      "kavlan-14": "2001:660:4406:5a0:503:1::12",
-      "kavlan-16": "2001:660:4406:7a0:503:1::12",
-      "kavlan-18": "2001:660:4406:8a0:503:1::12",
-      "kavlan-2": "2001:660:4406:581:3:1::12",
-      "kavlan-20": "2001:660:4406:3a0:503:1::12",
-      "kavlan-21": "2001:660:4406:6a0:503:1::12",
-      "kavlan-3": "2001:660:4406:582:3:1::12",
-      "kavlan-4": "2001:660:4406:590:3:1::12",
-      "kavlan-5": "2001:660:4406:591:3:1::12",
-      "kavlan-6": "2001:660:4406:592:3:1::12",
-      "kavlan-7": "2001:660:4406:593:3:1::12",
-      "kavlan-8": "2001:660:4406:594:3:1::12",
-      "kavlan-9": "2001:660:4406:595:3:1::12"
+      "kavlan-1": "2001:660:4406:580:3:1:0:12",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:12",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:12",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:12",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:12",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:12",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:12",
+      "kavlan-2": "2001:660:4406:581:3:1:0:12",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:12",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:12",
+      "kavlan-3": "2001:660:4406:582:3:1:0:12",
+      "kavlan-4": "2001:660:4406:590:3:1:0:12",
+      "kavlan-5": "2001:660:4406:591:3:1:0:12",
+      "kavlan-6": "2001:660:4406:592:3:1:0:12",
+      "kavlan-7": "2001:660:4406:593:3:1:0:12",
+      "kavlan-8": "2001:660:4406:594:3:1:0:12",
+      "kavlan-9": "2001:660:4406:595:3:1:0:12"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.18",
-      "ip6": "2001:660:4406:500:3:0::12",
+      "ip6": "2001:660:4406:500:3::12",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:32",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.146",
-      "ip6": "2001:660:4406:500:3:1::12",
+      "ip6": "2001:660:4406:500:3:1:0:12",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:33",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-19.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-19.json
index 74fb1ecc30bd272236d50499cd392afed0b3c9bd..1713b66beec98154e86275903fbd82ce77741aee 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-19.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-19.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::13",
-      "kavlan-11": "2001:660:4406:1a0:503:0::13",
-      "kavlan-12": "2001:660:4406:2a0:503:0::13",
-      "kavlan-13": "2001:660:4406:4a0:503:0::13",
-      "kavlan-14": "2001:660:4406:5a0:503:0::13",
-      "kavlan-16": "2001:660:4406:7a0:503:0::13",
-      "kavlan-18": "2001:660:4406:8a0:503:0::13",
-      "kavlan-2": "2001:660:4406:581:3:0::13",
-      "kavlan-20": "2001:660:4406:3a0:503:0::13",
-      "kavlan-21": "2001:660:4406:6a0:503:0::13",
-      "kavlan-3": "2001:660:4406:582:3:0::13",
-      "kavlan-4": "2001:660:4406:590:3:0::13",
-      "kavlan-5": "2001:660:4406:591:3:0::13",
-      "kavlan-6": "2001:660:4406:592:3:0::13",
-      "kavlan-7": "2001:660:4406:593:3:0::13",
-      "kavlan-8": "2001:660:4406:594:3:0::13",
-      "kavlan-9": "2001:660:4406:595:3:0::13"
+      "kavlan-1": "2001:660:4406:580:3::13",
+      "kavlan-11": "2001:660:4406:1a0:503::13",
+      "kavlan-12": "2001:660:4406:2a0:503::13",
+      "kavlan-13": "2001:660:4406:4a0:503::13",
+      "kavlan-14": "2001:660:4406:5a0:503::13",
+      "kavlan-16": "2001:660:4406:7a0:503::13",
+      "kavlan-18": "2001:660:4406:8a0:503::13",
+      "kavlan-2": "2001:660:4406:581:3::13",
+      "kavlan-20": "2001:660:4406:3a0:503::13",
+      "kavlan-21": "2001:660:4406:6a0:503::13",
+      "kavlan-3": "2001:660:4406:582:3::13",
+      "kavlan-4": "2001:660:4406:590:3::13",
+      "kavlan-5": "2001:660:4406:591:3::13",
+      "kavlan-6": "2001:660:4406:592:3::13",
+      "kavlan-7": "2001:660:4406:593:3::13",
+      "kavlan-8": "2001:660:4406:594:3::13",
+      "kavlan-9": "2001:660:4406:595:3::13"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::13",
-      "kavlan-11": "2001:660:4406:1a0:503:1::13",
-      "kavlan-12": "2001:660:4406:2a0:503:1::13",
-      "kavlan-13": "2001:660:4406:4a0:503:1::13",
-      "kavlan-14": "2001:660:4406:5a0:503:1::13",
-      "kavlan-16": "2001:660:4406:7a0:503:1::13",
-      "kavlan-18": "2001:660:4406:8a0:503:1::13",
-      "kavlan-2": "2001:660:4406:581:3:1::13",
-      "kavlan-20": "2001:660:4406:3a0:503:1::13",
-      "kavlan-21": "2001:660:4406:6a0:503:1::13",
-      "kavlan-3": "2001:660:4406:582:3:1::13",
-      "kavlan-4": "2001:660:4406:590:3:1::13",
-      "kavlan-5": "2001:660:4406:591:3:1::13",
-      "kavlan-6": "2001:660:4406:592:3:1::13",
-      "kavlan-7": "2001:660:4406:593:3:1::13",
-      "kavlan-8": "2001:660:4406:594:3:1::13",
-      "kavlan-9": "2001:660:4406:595:3:1::13"
+      "kavlan-1": "2001:660:4406:580:3:1:0:13",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:13",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:13",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:13",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:13",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:13",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:13",
+      "kavlan-2": "2001:660:4406:581:3:1:0:13",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:13",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:13",
+      "kavlan-3": "2001:660:4406:582:3:1:0:13",
+      "kavlan-4": "2001:660:4406:590:3:1:0:13",
+      "kavlan-5": "2001:660:4406:591:3:1:0:13",
+      "kavlan-6": "2001:660:4406:592:3:1:0:13",
+      "kavlan-7": "2001:660:4406:593:3:1:0:13",
+      "kavlan-8": "2001:660:4406:594:3:1:0:13",
+      "kavlan-9": "2001:660:4406:595:3:1:0:13"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.19",
-      "ip6": "2001:660:4406:500:3:0::13",
+      "ip6": "2001:660:4406:500:3::13",
       "kavlan": true,
       "mac": "98:03:9b:b0:b4:b6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.147",
-      "ip6": "2001:660:4406:500:3:1::13",
+      "ip6": "2001:660:4406:500:3:1:0:13",
       "kavlan": true,
       "mac": "98:03:9b:b0:b4:b7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-2.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-2.json
index be1dffcaff1620b43ac47777a93fb15eaa77abaa..037ad02c0f41de11e0c7dace433f165885b0c4c8 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-2.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-2.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::2",
-      "kavlan-11": "2001:660:4406:1a0:503:0::2",
-      "kavlan-12": "2001:660:4406:2a0:503:0::2",
-      "kavlan-13": "2001:660:4406:4a0:503:0::2",
-      "kavlan-14": "2001:660:4406:5a0:503:0::2",
-      "kavlan-16": "2001:660:4406:7a0:503:0::2",
-      "kavlan-18": "2001:660:4406:8a0:503:0::2",
-      "kavlan-2": "2001:660:4406:581:3:0::2",
-      "kavlan-20": "2001:660:4406:3a0:503:0::2",
-      "kavlan-21": "2001:660:4406:6a0:503:0::2",
-      "kavlan-3": "2001:660:4406:582:3:0::2",
-      "kavlan-4": "2001:660:4406:590:3:0::2",
-      "kavlan-5": "2001:660:4406:591:3:0::2",
-      "kavlan-6": "2001:660:4406:592:3:0::2",
-      "kavlan-7": "2001:660:4406:593:3:0::2",
-      "kavlan-8": "2001:660:4406:594:3:0::2",
-      "kavlan-9": "2001:660:4406:595:3:0::2"
+      "kavlan-1": "2001:660:4406:580:3::2",
+      "kavlan-11": "2001:660:4406:1a0:503::2",
+      "kavlan-12": "2001:660:4406:2a0:503::2",
+      "kavlan-13": "2001:660:4406:4a0:503::2",
+      "kavlan-14": "2001:660:4406:5a0:503::2",
+      "kavlan-16": "2001:660:4406:7a0:503::2",
+      "kavlan-18": "2001:660:4406:8a0:503::2",
+      "kavlan-2": "2001:660:4406:581:3::2",
+      "kavlan-20": "2001:660:4406:3a0:503::2",
+      "kavlan-21": "2001:660:4406:6a0:503::2",
+      "kavlan-3": "2001:660:4406:582:3::2",
+      "kavlan-4": "2001:660:4406:590:3::2",
+      "kavlan-5": "2001:660:4406:591:3::2",
+      "kavlan-6": "2001:660:4406:592:3::2",
+      "kavlan-7": "2001:660:4406:593:3::2",
+      "kavlan-8": "2001:660:4406:594:3::2",
+      "kavlan-9": "2001:660:4406:595:3::2"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::2",
-      "kavlan-11": "2001:660:4406:1a0:503:1::2",
-      "kavlan-12": "2001:660:4406:2a0:503:1::2",
-      "kavlan-13": "2001:660:4406:4a0:503:1::2",
-      "kavlan-14": "2001:660:4406:5a0:503:1::2",
-      "kavlan-16": "2001:660:4406:7a0:503:1::2",
-      "kavlan-18": "2001:660:4406:8a0:503:1::2",
-      "kavlan-2": "2001:660:4406:581:3:1::2",
-      "kavlan-20": "2001:660:4406:3a0:503:1::2",
-      "kavlan-21": "2001:660:4406:6a0:503:1::2",
-      "kavlan-3": "2001:660:4406:582:3:1::2",
-      "kavlan-4": "2001:660:4406:590:3:1::2",
-      "kavlan-5": "2001:660:4406:591:3:1::2",
-      "kavlan-6": "2001:660:4406:592:3:1::2",
-      "kavlan-7": "2001:660:4406:593:3:1::2",
-      "kavlan-8": "2001:660:4406:594:3:1::2",
-      "kavlan-9": "2001:660:4406:595:3:1::2"
+      "kavlan-1": "2001:660:4406:580:3:1:0:2",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:2",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:2",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:2",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:2",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:2",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:2",
+      "kavlan-2": "2001:660:4406:581:3:1:0:2",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:2",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:2",
+      "kavlan-3": "2001:660:4406:582:3:1:0:2",
+      "kavlan-4": "2001:660:4406:590:3:1:0:2",
+      "kavlan-5": "2001:660:4406:591:3:1:0:2",
+      "kavlan-6": "2001:660:4406:592:3:1:0:2",
+      "kavlan-7": "2001:660:4406:593:3:1:0:2",
+      "kavlan-8": "2001:660:4406:594:3:1:0:2",
+      "kavlan-9": "2001:660:4406:595:3:1:0:2"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.2",
-      "ip6": "2001:660:4406:500:3:0::2",
+      "ip6": "2001:660:4406:500:3::2",
       "kavlan": true,
       "mac": "98:03:9b:b0:65:b2",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.130",
-      "ip6": "2001:660:4406:500:3:1::2",
+      "ip6": "2001:660:4406:500:3:1:0:2",
       "kavlan": true,
       "mac": "98:03:9b:b0:65:b3",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-20.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-20.json
index 17cdb48d5bd0aff994925bdb171ce670e3eece05..fb56a86e2e99bfbecbef21bf0b3606a0ce42e252 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-20.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-20.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::14",
-      "kavlan-11": "2001:660:4406:1a0:503:0::14",
-      "kavlan-12": "2001:660:4406:2a0:503:0::14",
-      "kavlan-13": "2001:660:4406:4a0:503:0::14",
-      "kavlan-14": "2001:660:4406:5a0:503:0::14",
-      "kavlan-16": "2001:660:4406:7a0:503:0::14",
-      "kavlan-18": "2001:660:4406:8a0:503:0::14",
-      "kavlan-2": "2001:660:4406:581:3:0::14",
-      "kavlan-20": "2001:660:4406:3a0:503:0::14",
-      "kavlan-21": "2001:660:4406:6a0:503:0::14",
-      "kavlan-3": "2001:660:4406:582:3:0::14",
-      "kavlan-4": "2001:660:4406:590:3:0::14",
-      "kavlan-5": "2001:660:4406:591:3:0::14",
-      "kavlan-6": "2001:660:4406:592:3:0::14",
-      "kavlan-7": "2001:660:4406:593:3:0::14",
-      "kavlan-8": "2001:660:4406:594:3:0::14",
-      "kavlan-9": "2001:660:4406:595:3:0::14"
+      "kavlan-1": "2001:660:4406:580:3::14",
+      "kavlan-11": "2001:660:4406:1a0:503::14",
+      "kavlan-12": "2001:660:4406:2a0:503::14",
+      "kavlan-13": "2001:660:4406:4a0:503::14",
+      "kavlan-14": "2001:660:4406:5a0:503::14",
+      "kavlan-16": "2001:660:4406:7a0:503::14",
+      "kavlan-18": "2001:660:4406:8a0:503::14",
+      "kavlan-2": "2001:660:4406:581:3::14",
+      "kavlan-20": "2001:660:4406:3a0:503::14",
+      "kavlan-21": "2001:660:4406:6a0:503::14",
+      "kavlan-3": "2001:660:4406:582:3::14",
+      "kavlan-4": "2001:660:4406:590:3::14",
+      "kavlan-5": "2001:660:4406:591:3::14",
+      "kavlan-6": "2001:660:4406:592:3::14",
+      "kavlan-7": "2001:660:4406:593:3::14",
+      "kavlan-8": "2001:660:4406:594:3::14",
+      "kavlan-9": "2001:660:4406:595:3::14"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::14",
-      "kavlan-11": "2001:660:4406:1a0:503:1::14",
-      "kavlan-12": "2001:660:4406:2a0:503:1::14",
-      "kavlan-13": "2001:660:4406:4a0:503:1::14",
-      "kavlan-14": "2001:660:4406:5a0:503:1::14",
-      "kavlan-16": "2001:660:4406:7a0:503:1::14",
-      "kavlan-18": "2001:660:4406:8a0:503:1::14",
-      "kavlan-2": "2001:660:4406:581:3:1::14",
-      "kavlan-20": "2001:660:4406:3a0:503:1::14",
-      "kavlan-21": "2001:660:4406:6a0:503:1::14",
-      "kavlan-3": "2001:660:4406:582:3:1::14",
-      "kavlan-4": "2001:660:4406:590:3:1::14",
-      "kavlan-5": "2001:660:4406:591:3:1::14",
-      "kavlan-6": "2001:660:4406:592:3:1::14",
-      "kavlan-7": "2001:660:4406:593:3:1::14",
-      "kavlan-8": "2001:660:4406:594:3:1::14",
-      "kavlan-9": "2001:660:4406:595:3:1::14"
+      "kavlan-1": "2001:660:4406:580:3:1:0:14",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:14",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:14",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:14",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:14",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:14",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:14",
+      "kavlan-2": "2001:660:4406:581:3:1:0:14",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:14",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:14",
+      "kavlan-3": "2001:660:4406:582:3:1:0:14",
+      "kavlan-4": "2001:660:4406:590:3:1:0:14",
+      "kavlan-5": "2001:660:4406:591:3:1:0:14",
+      "kavlan-6": "2001:660:4406:592:3:1:0:14",
+      "kavlan-7": "2001:660:4406:593:3:1:0:14",
+      "kavlan-8": "2001:660:4406:594:3:1:0:14",
+      "kavlan-9": "2001:660:4406:595:3:1:0:14"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.20",
-      "ip6": "2001:660:4406:500:3:0::14",
+      "ip6": "2001:660:4406:500:3::14",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:7e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.148",
-      "ip6": "2001:660:4406:500:3:1::14",
+      "ip6": "2001:660:4406:500:3:1:0:14",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:7f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-21.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-21.json
index 48cb92d8d750ce285998afe9a244d4e0e9b583b7..845a26adb1eaba6617a38bbd9d992589b6149dbd 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-21.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-21.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::15",
-      "kavlan-11": "2001:660:4406:1a0:503:0::15",
-      "kavlan-12": "2001:660:4406:2a0:503:0::15",
-      "kavlan-13": "2001:660:4406:4a0:503:0::15",
-      "kavlan-14": "2001:660:4406:5a0:503:0::15",
-      "kavlan-16": "2001:660:4406:7a0:503:0::15",
-      "kavlan-18": "2001:660:4406:8a0:503:0::15",
-      "kavlan-2": "2001:660:4406:581:3:0::15",
-      "kavlan-20": "2001:660:4406:3a0:503:0::15",
-      "kavlan-21": "2001:660:4406:6a0:503:0::15",
-      "kavlan-3": "2001:660:4406:582:3:0::15",
-      "kavlan-4": "2001:660:4406:590:3:0::15",
-      "kavlan-5": "2001:660:4406:591:3:0::15",
-      "kavlan-6": "2001:660:4406:592:3:0::15",
-      "kavlan-7": "2001:660:4406:593:3:0::15",
-      "kavlan-8": "2001:660:4406:594:3:0::15",
-      "kavlan-9": "2001:660:4406:595:3:0::15"
+      "kavlan-1": "2001:660:4406:580:3::15",
+      "kavlan-11": "2001:660:4406:1a0:503::15",
+      "kavlan-12": "2001:660:4406:2a0:503::15",
+      "kavlan-13": "2001:660:4406:4a0:503::15",
+      "kavlan-14": "2001:660:4406:5a0:503::15",
+      "kavlan-16": "2001:660:4406:7a0:503::15",
+      "kavlan-18": "2001:660:4406:8a0:503::15",
+      "kavlan-2": "2001:660:4406:581:3::15",
+      "kavlan-20": "2001:660:4406:3a0:503::15",
+      "kavlan-21": "2001:660:4406:6a0:503::15",
+      "kavlan-3": "2001:660:4406:582:3::15",
+      "kavlan-4": "2001:660:4406:590:3::15",
+      "kavlan-5": "2001:660:4406:591:3::15",
+      "kavlan-6": "2001:660:4406:592:3::15",
+      "kavlan-7": "2001:660:4406:593:3::15",
+      "kavlan-8": "2001:660:4406:594:3::15",
+      "kavlan-9": "2001:660:4406:595:3::15"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::15",
-      "kavlan-11": "2001:660:4406:1a0:503:1::15",
-      "kavlan-12": "2001:660:4406:2a0:503:1::15",
-      "kavlan-13": "2001:660:4406:4a0:503:1::15",
-      "kavlan-14": "2001:660:4406:5a0:503:1::15",
-      "kavlan-16": "2001:660:4406:7a0:503:1::15",
-      "kavlan-18": "2001:660:4406:8a0:503:1::15",
-      "kavlan-2": "2001:660:4406:581:3:1::15",
-      "kavlan-20": "2001:660:4406:3a0:503:1::15",
-      "kavlan-21": "2001:660:4406:6a0:503:1::15",
-      "kavlan-3": "2001:660:4406:582:3:1::15",
-      "kavlan-4": "2001:660:4406:590:3:1::15",
-      "kavlan-5": "2001:660:4406:591:3:1::15",
-      "kavlan-6": "2001:660:4406:592:3:1::15",
-      "kavlan-7": "2001:660:4406:593:3:1::15",
-      "kavlan-8": "2001:660:4406:594:3:1::15",
-      "kavlan-9": "2001:660:4406:595:3:1::15"
+      "kavlan-1": "2001:660:4406:580:3:1:0:15",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:15",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:15",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:15",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:15",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:15",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:15",
+      "kavlan-2": "2001:660:4406:581:3:1:0:15",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:15",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:15",
+      "kavlan-3": "2001:660:4406:582:3:1:0:15",
+      "kavlan-4": "2001:660:4406:590:3:1:0:15",
+      "kavlan-5": "2001:660:4406:591:3:1:0:15",
+      "kavlan-6": "2001:660:4406:592:3:1:0:15",
+      "kavlan-7": "2001:660:4406:593:3:1:0:15",
+      "kavlan-8": "2001:660:4406:594:3:1:0:15",
+      "kavlan-9": "2001:660:4406:595:3:1:0:15"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.21",
-      "ip6": "2001:660:4406:500:3:0::15",
+      "ip6": "2001:660:4406:500:3::15",
       "kavlan": true,
       "mac": "98:03:9b:b0:a4:4e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.149",
-      "ip6": "2001:660:4406:500:3:1::15",
+      "ip6": "2001:660:4406:500:3:1:0:15",
       "kavlan": true,
       "mac": "98:03:9b:b0:a4:4f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-22.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-22.json
index 96ddf4291d324d148b65abf371385c8d652a1124..0d71d600706c4b3b586b657e4eedd8eff9670daf 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-22.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-22.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::16",
-      "kavlan-11": "2001:660:4406:1a0:503:0::16",
-      "kavlan-12": "2001:660:4406:2a0:503:0::16",
-      "kavlan-13": "2001:660:4406:4a0:503:0::16",
-      "kavlan-14": "2001:660:4406:5a0:503:0::16",
-      "kavlan-16": "2001:660:4406:7a0:503:0::16",
-      "kavlan-18": "2001:660:4406:8a0:503:0::16",
-      "kavlan-2": "2001:660:4406:581:3:0::16",
-      "kavlan-20": "2001:660:4406:3a0:503:0::16",
-      "kavlan-21": "2001:660:4406:6a0:503:0::16",
-      "kavlan-3": "2001:660:4406:582:3:0::16",
-      "kavlan-4": "2001:660:4406:590:3:0::16",
-      "kavlan-5": "2001:660:4406:591:3:0::16",
-      "kavlan-6": "2001:660:4406:592:3:0::16",
-      "kavlan-7": "2001:660:4406:593:3:0::16",
-      "kavlan-8": "2001:660:4406:594:3:0::16",
-      "kavlan-9": "2001:660:4406:595:3:0::16"
+      "kavlan-1": "2001:660:4406:580:3::16",
+      "kavlan-11": "2001:660:4406:1a0:503::16",
+      "kavlan-12": "2001:660:4406:2a0:503::16",
+      "kavlan-13": "2001:660:4406:4a0:503::16",
+      "kavlan-14": "2001:660:4406:5a0:503::16",
+      "kavlan-16": "2001:660:4406:7a0:503::16",
+      "kavlan-18": "2001:660:4406:8a0:503::16",
+      "kavlan-2": "2001:660:4406:581:3::16",
+      "kavlan-20": "2001:660:4406:3a0:503::16",
+      "kavlan-21": "2001:660:4406:6a0:503::16",
+      "kavlan-3": "2001:660:4406:582:3::16",
+      "kavlan-4": "2001:660:4406:590:3::16",
+      "kavlan-5": "2001:660:4406:591:3::16",
+      "kavlan-6": "2001:660:4406:592:3::16",
+      "kavlan-7": "2001:660:4406:593:3::16",
+      "kavlan-8": "2001:660:4406:594:3::16",
+      "kavlan-9": "2001:660:4406:595:3::16"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::16",
-      "kavlan-11": "2001:660:4406:1a0:503:1::16",
-      "kavlan-12": "2001:660:4406:2a0:503:1::16",
-      "kavlan-13": "2001:660:4406:4a0:503:1::16",
-      "kavlan-14": "2001:660:4406:5a0:503:1::16",
-      "kavlan-16": "2001:660:4406:7a0:503:1::16",
-      "kavlan-18": "2001:660:4406:8a0:503:1::16",
-      "kavlan-2": "2001:660:4406:581:3:1::16",
-      "kavlan-20": "2001:660:4406:3a0:503:1::16",
-      "kavlan-21": "2001:660:4406:6a0:503:1::16",
-      "kavlan-3": "2001:660:4406:582:3:1::16",
-      "kavlan-4": "2001:660:4406:590:3:1::16",
-      "kavlan-5": "2001:660:4406:591:3:1::16",
-      "kavlan-6": "2001:660:4406:592:3:1::16",
-      "kavlan-7": "2001:660:4406:593:3:1::16",
-      "kavlan-8": "2001:660:4406:594:3:1::16",
-      "kavlan-9": "2001:660:4406:595:3:1::16"
+      "kavlan-1": "2001:660:4406:580:3:1:0:16",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:16",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:16",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:16",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:16",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:16",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:16",
+      "kavlan-2": "2001:660:4406:581:3:1:0:16",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:16",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:16",
+      "kavlan-3": "2001:660:4406:582:3:1:0:16",
+      "kavlan-4": "2001:660:4406:590:3:1:0:16",
+      "kavlan-5": "2001:660:4406:591:3:1:0:16",
+      "kavlan-6": "2001:660:4406:592:3:1:0:16",
+      "kavlan-7": "2001:660:4406:593:3:1:0:16",
+      "kavlan-8": "2001:660:4406:594:3:1:0:16",
+      "kavlan-9": "2001:660:4406:595:3:1:0:16"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.22",
-      "ip6": "2001:660:4406:500:3:0::16",
+      "ip6": "2001:660:4406:500:3::16",
       "kavlan": true,
       "mac": "98:03:9b:b0:c4:e6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.150",
-      "ip6": "2001:660:4406:500:3:1::16",
+      "ip6": "2001:660:4406:500:3:1:0:16",
       "kavlan": true,
       "mac": "98:03:9b:b0:c4:e7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-23.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-23.json
index 892c67b87d7d6a1239f1de65555c5d741f1ae994..8cf40f11f26bfb26e53536395411c70271e64fa9 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-23.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-23.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::17",
-      "kavlan-11": "2001:660:4406:1a0:503:0::17",
-      "kavlan-12": "2001:660:4406:2a0:503:0::17",
-      "kavlan-13": "2001:660:4406:4a0:503:0::17",
-      "kavlan-14": "2001:660:4406:5a0:503:0::17",
-      "kavlan-16": "2001:660:4406:7a0:503:0::17",
-      "kavlan-18": "2001:660:4406:8a0:503:0::17",
-      "kavlan-2": "2001:660:4406:581:3:0::17",
-      "kavlan-20": "2001:660:4406:3a0:503:0::17",
-      "kavlan-21": "2001:660:4406:6a0:503:0::17",
-      "kavlan-3": "2001:660:4406:582:3:0::17",
-      "kavlan-4": "2001:660:4406:590:3:0::17",
-      "kavlan-5": "2001:660:4406:591:3:0::17",
-      "kavlan-6": "2001:660:4406:592:3:0::17",
-      "kavlan-7": "2001:660:4406:593:3:0::17",
-      "kavlan-8": "2001:660:4406:594:3:0::17",
-      "kavlan-9": "2001:660:4406:595:3:0::17"
+      "kavlan-1": "2001:660:4406:580:3::17",
+      "kavlan-11": "2001:660:4406:1a0:503::17",
+      "kavlan-12": "2001:660:4406:2a0:503::17",
+      "kavlan-13": "2001:660:4406:4a0:503::17",
+      "kavlan-14": "2001:660:4406:5a0:503::17",
+      "kavlan-16": "2001:660:4406:7a0:503::17",
+      "kavlan-18": "2001:660:4406:8a0:503::17",
+      "kavlan-2": "2001:660:4406:581:3::17",
+      "kavlan-20": "2001:660:4406:3a0:503::17",
+      "kavlan-21": "2001:660:4406:6a0:503::17",
+      "kavlan-3": "2001:660:4406:582:3::17",
+      "kavlan-4": "2001:660:4406:590:3::17",
+      "kavlan-5": "2001:660:4406:591:3::17",
+      "kavlan-6": "2001:660:4406:592:3::17",
+      "kavlan-7": "2001:660:4406:593:3::17",
+      "kavlan-8": "2001:660:4406:594:3::17",
+      "kavlan-9": "2001:660:4406:595:3::17"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::17",
-      "kavlan-11": "2001:660:4406:1a0:503:1::17",
-      "kavlan-12": "2001:660:4406:2a0:503:1::17",
-      "kavlan-13": "2001:660:4406:4a0:503:1::17",
-      "kavlan-14": "2001:660:4406:5a0:503:1::17",
-      "kavlan-16": "2001:660:4406:7a0:503:1::17",
-      "kavlan-18": "2001:660:4406:8a0:503:1::17",
-      "kavlan-2": "2001:660:4406:581:3:1::17",
-      "kavlan-20": "2001:660:4406:3a0:503:1::17",
-      "kavlan-21": "2001:660:4406:6a0:503:1::17",
-      "kavlan-3": "2001:660:4406:582:3:1::17",
-      "kavlan-4": "2001:660:4406:590:3:1::17",
-      "kavlan-5": "2001:660:4406:591:3:1::17",
-      "kavlan-6": "2001:660:4406:592:3:1::17",
-      "kavlan-7": "2001:660:4406:593:3:1::17",
-      "kavlan-8": "2001:660:4406:594:3:1::17",
-      "kavlan-9": "2001:660:4406:595:3:1::17"
+      "kavlan-1": "2001:660:4406:580:3:1:0:17",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:17",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:17",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:17",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:17",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:17",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:17",
+      "kavlan-2": "2001:660:4406:581:3:1:0:17",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:17",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:17",
+      "kavlan-3": "2001:660:4406:582:3:1:0:17",
+      "kavlan-4": "2001:660:4406:590:3:1:0:17",
+      "kavlan-5": "2001:660:4406:591:3:1:0:17",
+      "kavlan-6": "2001:660:4406:592:3:1:0:17",
+      "kavlan-7": "2001:660:4406:593:3:1:0:17",
+      "kavlan-8": "2001:660:4406:594:3:1:0:17",
+      "kavlan-9": "2001:660:4406:595:3:1:0:17"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.23",
-      "ip6": "2001:660:4406:500:3:0::17",
+      "ip6": "2001:660:4406:500:3::17",
       "kavlan": true,
       "mac": "98:03:9b:b0:a3:36",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.151",
-      "ip6": "2001:660:4406:500:3:1::17",
+      "ip6": "2001:660:4406:500:3:1:0:17",
       "kavlan": true,
       "mac": "98:03:9b:b0:a3:37",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-24.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-24.json
index ae515658a8a84c32960bc5e7fe6ba5b13155a7d9..46d7bd3fd4073afaff75f1d75d67b7a5eb522561 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-24.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-24.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::18",
-      "kavlan-11": "2001:660:4406:1a0:503:0::18",
-      "kavlan-12": "2001:660:4406:2a0:503:0::18",
-      "kavlan-13": "2001:660:4406:4a0:503:0::18",
-      "kavlan-14": "2001:660:4406:5a0:503:0::18",
-      "kavlan-16": "2001:660:4406:7a0:503:0::18",
-      "kavlan-18": "2001:660:4406:8a0:503:0::18",
-      "kavlan-2": "2001:660:4406:581:3:0::18",
-      "kavlan-20": "2001:660:4406:3a0:503:0::18",
-      "kavlan-21": "2001:660:4406:6a0:503:0::18",
-      "kavlan-3": "2001:660:4406:582:3:0::18",
-      "kavlan-4": "2001:660:4406:590:3:0::18",
-      "kavlan-5": "2001:660:4406:591:3:0::18",
-      "kavlan-6": "2001:660:4406:592:3:0::18",
-      "kavlan-7": "2001:660:4406:593:3:0::18",
-      "kavlan-8": "2001:660:4406:594:3:0::18",
-      "kavlan-9": "2001:660:4406:595:3:0::18"
+      "kavlan-1": "2001:660:4406:580:3::18",
+      "kavlan-11": "2001:660:4406:1a0:503::18",
+      "kavlan-12": "2001:660:4406:2a0:503::18",
+      "kavlan-13": "2001:660:4406:4a0:503::18",
+      "kavlan-14": "2001:660:4406:5a0:503::18",
+      "kavlan-16": "2001:660:4406:7a0:503::18",
+      "kavlan-18": "2001:660:4406:8a0:503::18",
+      "kavlan-2": "2001:660:4406:581:3::18",
+      "kavlan-20": "2001:660:4406:3a0:503::18",
+      "kavlan-21": "2001:660:4406:6a0:503::18",
+      "kavlan-3": "2001:660:4406:582:3::18",
+      "kavlan-4": "2001:660:4406:590:3::18",
+      "kavlan-5": "2001:660:4406:591:3::18",
+      "kavlan-6": "2001:660:4406:592:3::18",
+      "kavlan-7": "2001:660:4406:593:3::18",
+      "kavlan-8": "2001:660:4406:594:3::18",
+      "kavlan-9": "2001:660:4406:595:3::18"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::18",
-      "kavlan-11": "2001:660:4406:1a0:503:1::18",
-      "kavlan-12": "2001:660:4406:2a0:503:1::18",
-      "kavlan-13": "2001:660:4406:4a0:503:1::18",
-      "kavlan-14": "2001:660:4406:5a0:503:1::18",
-      "kavlan-16": "2001:660:4406:7a0:503:1::18",
-      "kavlan-18": "2001:660:4406:8a0:503:1::18",
-      "kavlan-2": "2001:660:4406:581:3:1::18",
-      "kavlan-20": "2001:660:4406:3a0:503:1::18",
-      "kavlan-21": "2001:660:4406:6a0:503:1::18",
-      "kavlan-3": "2001:660:4406:582:3:1::18",
-      "kavlan-4": "2001:660:4406:590:3:1::18",
-      "kavlan-5": "2001:660:4406:591:3:1::18",
-      "kavlan-6": "2001:660:4406:592:3:1::18",
-      "kavlan-7": "2001:660:4406:593:3:1::18",
-      "kavlan-8": "2001:660:4406:594:3:1::18",
-      "kavlan-9": "2001:660:4406:595:3:1::18"
+      "kavlan-1": "2001:660:4406:580:3:1:0:18",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:18",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:18",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:18",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:18",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:18",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:18",
+      "kavlan-2": "2001:660:4406:581:3:1:0:18",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:18",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:18",
+      "kavlan-3": "2001:660:4406:582:3:1:0:18",
+      "kavlan-4": "2001:660:4406:590:3:1:0:18",
+      "kavlan-5": "2001:660:4406:591:3:1:0:18",
+      "kavlan-6": "2001:660:4406:592:3:1:0:18",
+      "kavlan-7": "2001:660:4406:593:3:1:0:18",
+      "kavlan-8": "2001:660:4406:594:3:1:0:18",
+      "kavlan-9": "2001:660:4406:595:3:1:0:18"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.24",
-      "ip6": "2001:660:4406:500:3:0::18",
+      "ip6": "2001:660:4406:500:3::18",
       "kavlan": true,
       "mac": "98:03:9b:b0:c0:fe",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.152",
-      "ip6": "2001:660:4406:500:3:1::18",
+      "ip6": "2001:660:4406:500:3:1:0:18",
       "kavlan": true,
       "mac": "98:03:9b:b0:c0:ff",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-25.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-25.json
index f77f695067e0bff5f97bec156fcf69692eaa183d..3d0f6d86cc16c5cecf7a0bb164b9b76e2a0f8085 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-25.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-25.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::19",
-      "kavlan-11": "2001:660:4406:1a0:503:0::19",
-      "kavlan-12": "2001:660:4406:2a0:503:0::19",
-      "kavlan-13": "2001:660:4406:4a0:503:0::19",
-      "kavlan-14": "2001:660:4406:5a0:503:0::19",
-      "kavlan-16": "2001:660:4406:7a0:503:0::19",
-      "kavlan-18": "2001:660:4406:8a0:503:0::19",
-      "kavlan-2": "2001:660:4406:581:3:0::19",
-      "kavlan-20": "2001:660:4406:3a0:503:0::19",
-      "kavlan-21": "2001:660:4406:6a0:503:0::19",
-      "kavlan-3": "2001:660:4406:582:3:0::19",
-      "kavlan-4": "2001:660:4406:590:3:0::19",
-      "kavlan-5": "2001:660:4406:591:3:0::19",
-      "kavlan-6": "2001:660:4406:592:3:0::19",
-      "kavlan-7": "2001:660:4406:593:3:0::19",
-      "kavlan-8": "2001:660:4406:594:3:0::19",
-      "kavlan-9": "2001:660:4406:595:3:0::19"
+      "kavlan-1": "2001:660:4406:580:3::19",
+      "kavlan-11": "2001:660:4406:1a0:503::19",
+      "kavlan-12": "2001:660:4406:2a0:503::19",
+      "kavlan-13": "2001:660:4406:4a0:503::19",
+      "kavlan-14": "2001:660:4406:5a0:503::19",
+      "kavlan-16": "2001:660:4406:7a0:503::19",
+      "kavlan-18": "2001:660:4406:8a0:503::19",
+      "kavlan-2": "2001:660:4406:581:3::19",
+      "kavlan-20": "2001:660:4406:3a0:503::19",
+      "kavlan-21": "2001:660:4406:6a0:503::19",
+      "kavlan-3": "2001:660:4406:582:3::19",
+      "kavlan-4": "2001:660:4406:590:3::19",
+      "kavlan-5": "2001:660:4406:591:3::19",
+      "kavlan-6": "2001:660:4406:592:3::19",
+      "kavlan-7": "2001:660:4406:593:3::19",
+      "kavlan-8": "2001:660:4406:594:3::19",
+      "kavlan-9": "2001:660:4406:595:3::19"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::19",
-      "kavlan-11": "2001:660:4406:1a0:503:1::19",
-      "kavlan-12": "2001:660:4406:2a0:503:1::19",
-      "kavlan-13": "2001:660:4406:4a0:503:1::19",
-      "kavlan-14": "2001:660:4406:5a0:503:1::19",
-      "kavlan-16": "2001:660:4406:7a0:503:1::19",
-      "kavlan-18": "2001:660:4406:8a0:503:1::19",
-      "kavlan-2": "2001:660:4406:581:3:1::19",
-      "kavlan-20": "2001:660:4406:3a0:503:1::19",
-      "kavlan-21": "2001:660:4406:6a0:503:1::19",
-      "kavlan-3": "2001:660:4406:582:3:1::19",
-      "kavlan-4": "2001:660:4406:590:3:1::19",
-      "kavlan-5": "2001:660:4406:591:3:1::19",
-      "kavlan-6": "2001:660:4406:592:3:1::19",
-      "kavlan-7": "2001:660:4406:593:3:1::19",
-      "kavlan-8": "2001:660:4406:594:3:1::19",
-      "kavlan-9": "2001:660:4406:595:3:1::19"
+      "kavlan-1": "2001:660:4406:580:3:1:0:19",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:19",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:19",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:19",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:19",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:19",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:19",
+      "kavlan-2": "2001:660:4406:581:3:1:0:19",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:19",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:19",
+      "kavlan-3": "2001:660:4406:582:3:1:0:19",
+      "kavlan-4": "2001:660:4406:590:3:1:0:19",
+      "kavlan-5": "2001:660:4406:591:3:1:0:19",
+      "kavlan-6": "2001:660:4406:592:3:1:0:19",
+      "kavlan-7": "2001:660:4406:593:3:1:0:19",
+      "kavlan-8": "2001:660:4406:594:3:1:0:19",
+      "kavlan-9": "2001:660:4406:595:3:1:0:19"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.25",
-      "ip6": "2001:660:4406:500:3:0::19",
+      "ip6": "2001:660:4406:500:3::19",
       "kavlan": true,
       "mac": "98:03:9b:b0:cd:7e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.153",
-      "ip6": "2001:660:4406:500:3:1::19",
+      "ip6": "2001:660:4406:500:3:1:0:19",
       "kavlan": true,
       "mac": "98:03:9b:b0:cd:7f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-26.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-26.json
index c735e55b1cdaee9da4e9ca8d4673e30ace775cd7..683484e34c1a60a23744d1a6d066624a5f2d02fb 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-26.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-26.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::1a",
-      "kavlan-11": "2001:660:4406:1a0:503:0::1a",
-      "kavlan-12": "2001:660:4406:2a0:503:0::1a",
-      "kavlan-13": "2001:660:4406:4a0:503:0::1a",
-      "kavlan-14": "2001:660:4406:5a0:503:0::1a",
-      "kavlan-16": "2001:660:4406:7a0:503:0::1a",
-      "kavlan-18": "2001:660:4406:8a0:503:0::1a",
-      "kavlan-2": "2001:660:4406:581:3:0::1a",
-      "kavlan-20": "2001:660:4406:3a0:503:0::1a",
-      "kavlan-21": "2001:660:4406:6a0:503:0::1a",
-      "kavlan-3": "2001:660:4406:582:3:0::1a",
-      "kavlan-4": "2001:660:4406:590:3:0::1a",
-      "kavlan-5": "2001:660:4406:591:3:0::1a",
-      "kavlan-6": "2001:660:4406:592:3:0::1a",
-      "kavlan-7": "2001:660:4406:593:3:0::1a",
-      "kavlan-8": "2001:660:4406:594:3:0::1a",
-      "kavlan-9": "2001:660:4406:595:3:0::1a"
+      "kavlan-1": "2001:660:4406:580:3::1a",
+      "kavlan-11": "2001:660:4406:1a0:503::1a",
+      "kavlan-12": "2001:660:4406:2a0:503::1a",
+      "kavlan-13": "2001:660:4406:4a0:503::1a",
+      "kavlan-14": "2001:660:4406:5a0:503::1a",
+      "kavlan-16": "2001:660:4406:7a0:503::1a",
+      "kavlan-18": "2001:660:4406:8a0:503::1a",
+      "kavlan-2": "2001:660:4406:581:3::1a",
+      "kavlan-20": "2001:660:4406:3a0:503::1a",
+      "kavlan-21": "2001:660:4406:6a0:503::1a",
+      "kavlan-3": "2001:660:4406:582:3::1a",
+      "kavlan-4": "2001:660:4406:590:3::1a",
+      "kavlan-5": "2001:660:4406:591:3::1a",
+      "kavlan-6": "2001:660:4406:592:3::1a",
+      "kavlan-7": "2001:660:4406:593:3::1a",
+      "kavlan-8": "2001:660:4406:594:3::1a",
+      "kavlan-9": "2001:660:4406:595:3::1a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::1a",
-      "kavlan-11": "2001:660:4406:1a0:503:1::1a",
-      "kavlan-12": "2001:660:4406:2a0:503:1::1a",
-      "kavlan-13": "2001:660:4406:4a0:503:1::1a",
-      "kavlan-14": "2001:660:4406:5a0:503:1::1a",
-      "kavlan-16": "2001:660:4406:7a0:503:1::1a",
-      "kavlan-18": "2001:660:4406:8a0:503:1::1a",
-      "kavlan-2": "2001:660:4406:581:3:1::1a",
-      "kavlan-20": "2001:660:4406:3a0:503:1::1a",
-      "kavlan-21": "2001:660:4406:6a0:503:1::1a",
-      "kavlan-3": "2001:660:4406:582:3:1::1a",
-      "kavlan-4": "2001:660:4406:590:3:1::1a",
-      "kavlan-5": "2001:660:4406:591:3:1::1a",
-      "kavlan-6": "2001:660:4406:592:3:1::1a",
-      "kavlan-7": "2001:660:4406:593:3:1::1a",
-      "kavlan-8": "2001:660:4406:594:3:1::1a",
-      "kavlan-9": "2001:660:4406:595:3:1::1a"
+      "kavlan-1": "2001:660:4406:580:3:1:0:1a",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:1a",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:1a",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:1a",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:1a",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:1a",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:1a",
+      "kavlan-2": "2001:660:4406:581:3:1:0:1a",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:1a",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:1a",
+      "kavlan-3": "2001:660:4406:582:3:1:0:1a",
+      "kavlan-4": "2001:660:4406:590:3:1:0:1a",
+      "kavlan-5": "2001:660:4406:591:3:1:0:1a",
+      "kavlan-6": "2001:660:4406:592:3:1:0:1a",
+      "kavlan-7": "2001:660:4406:593:3:1:0:1a",
+      "kavlan-8": "2001:660:4406:594:3:1:0:1a",
+      "kavlan-9": "2001:660:4406:595:3:1:0:1a"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.26",
-      "ip6": "2001:660:4406:500:3:0::1a",
+      "ip6": "2001:660:4406:500:3::1a",
       "kavlan": true,
       "mac": "98:03:9b:b0:c8:3e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.154",
-      "ip6": "2001:660:4406:500:3:1::1a",
+      "ip6": "2001:660:4406:500:3:1:0:1a",
       "kavlan": true,
       "mac": "98:03:9b:b0:c8:3f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-27.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-27.json
index 89dfd177f8dc73d12a60e9beb27fcd34a954e1c7..c85b12a8d8abdee787d804e47f300dd9acf50f14 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-27.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-27.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::1b",
-      "kavlan-11": "2001:660:4406:1a0:503:0::1b",
-      "kavlan-12": "2001:660:4406:2a0:503:0::1b",
-      "kavlan-13": "2001:660:4406:4a0:503:0::1b",
-      "kavlan-14": "2001:660:4406:5a0:503:0::1b",
-      "kavlan-16": "2001:660:4406:7a0:503:0::1b",
-      "kavlan-18": "2001:660:4406:8a0:503:0::1b",
-      "kavlan-2": "2001:660:4406:581:3:0::1b",
-      "kavlan-20": "2001:660:4406:3a0:503:0::1b",
-      "kavlan-21": "2001:660:4406:6a0:503:0::1b",
-      "kavlan-3": "2001:660:4406:582:3:0::1b",
-      "kavlan-4": "2001:660:4406:590:3:0::1b",
-      "kavlan-5": "2001:660:4406:591:3:0::1b",
-      "kavlan-6": "2001:660:4406:592:3:0::1b",
-      "kavlan-7": "2001:660:4406:593:3:0::1b",
-      "kavlan-8": "2001:660:4406:594:3:0::1b",
-      "kavlan-9": "2001:660:4406:595:3:0::1b"
+      "kavlan-1": "2001:660:4406:580:3::1b",
+      "kavlan-11": "2001:660:4406:1a0:503::1b",
+      "kavlan-12": "2001:660:4406:2a0:503::1b",
+      "kavlan-13": "2001:660:4406:4a0:503::1b",
+      "kavlan-14": "2001:660:4406:5a0:503::1b",
+      "kavlan-16": "2001:660:4406:7a0:503::1b",
+      "kavlan-18": "2001:660:4406:8a0:503::1b",
+      "kavlan-2": "2001:660:4406:581:3::1b",
+      "kavlan-20": "2001:660:4406:3a0:503::1b",
+      "kavlan-21": "2001:660:4406:6a0:503::1b",
+      "kavlan-3": "2001:660:4406:582:3::1b",
+      "kavlan-4": "2001:660:4406:590:3::1b",
+      "kavlan-5": "2001:660:4406:591:3::1b",
+      "kavlan-6": "2001:660:4406:592:3::1b",
+      "kavlan-7": "2001:660:4406:593:3::1b",
+      "kavlan-8": "2001:660:4406:594:3::1b",
+      "kavlan-9": "2001:660:4406:595:3::1b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::1b",
-      "kavlan-11": "2001:660:4406:1a0:503:1::1b",
-      "kavlan-12": "2001:660:4406:2a0:503:1::1b",
-      "kavlan-13": "2001:660:4406:4a0:503:1::1b",
-      "kavlan-14": "2001:660:4406:5a0:503:1::1b",
-      "kavlan-16": "2001:660:4406:7a0:503:1::1b",
-      "kavlan-18": "2001:660:4406:8a0:503:1::1b",
-      "kavlan-2": "2001:660:4406:581:3:1::1b",
-      "kavlan-20": "2001:660:4406:3a0:503:1::1b",
-      "kavlan-21": "2001:660:4406:6a0:503:1::1b",
-      "kavlan-3": "2001:660:4406:582:3:1::1b",
-      "kavlan-4": "2001:660:4406:590:3:1::1b",
-      "kavlan-5": "2001:660:4406:591:3:1::1b",
-      "kavlan-6": "2001:660:4406:592:3:1::1b",
-      "kavlan-7": "2001:660:4406:593:3:1::1b",
-      "kavlan-8": "2001:660:4406:594:3:1::1b",
-      "kavlan-9": "2001:660:4406:595:3:1::1b"
+      "kavlan-1": "2001:660:4406:580:3:1:0:1b",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:1b",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:1b",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:1b",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:1b",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:1b",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:1b",
+      "kavlan-2": "2001:660:4406:581:3:1:0:1b",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:1b",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:1b",
+      "kavlan-3": "2001:660:4406:582:3:1:0:1b",
+      "kavlan-4": "2001:660:4406:590:3:1:0:1b",
+      "kavlan-5": "2001:660:4406:591:3:1:0:1b",
+      "kavlan-6": "2001:660:4406:592:3:1:0:1b",
+      "kavlan-7": "2001:660:4406:593:3:1:0:1b",
+      "kavlan-8": "2001:660:4406:594:3:1:0:1b",
+      "kavlan-9": "2001:660:4406:595:3:1:0:1b"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.27",
-      "ip6": "2001:660:4406:500:3:0::1b",
+      "ip6": "2001:660:4406:500:3::1b",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:fa",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.155",
-      "ip6": "2001:660:4406:500:3:1::1b",
+      "ip6": "2001:660:4406:500:3:1:0:1b",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:fb",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-28.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-28.json
index 0ab93bab86f0a4837c9e0579a676b97526e07113..3b4d7d58d53d480cb8114ad572ddac4807e819ee 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-28.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-28.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::1c",
-      "kavlan-11": "2001:660:4406:1a0:503:0::1c",
-      "kavlan-12": "2001:660:4406:2a0:503:0::1c",
-      "kavlan-13": "2001:660:4406:4a0:503:0::1c",
-      "kavlan-14": "2001:660:4406:5a0:503:0::1c",
-      "kavlan-16": "2001:660:4406:7a0:503:0::1c",
-      "kavlan-18": "2001:660:4406:8a0:503:0::1c",
-      "kavlan-2": "2001:660:4406:581:3:0::1c",
-      "kavlan-20": "2001:660:4406:3a0:503:0::1c",
-      "kavlan-21": "2001:660:4406:6a0:503:0::1c",
-      "kavlan-3": "2001:660:4406:582:3:0::1c",
-      "kavlan-4": "2001:660:4406:590:3:0::1c",
-      "kavlan-5": "2001:660:4406:591:3:0::1c",
-      "kavlan-6": "2001:660:4406:592:3:0::1c",
-      "kavlan-7": "2001:660:4406:593:3:0::1c",
-      "kavlan-8": "2001:660:4406:594:3:0::1c",
-      "kavlan-9": "2001:660:4406:595:3:0::1c"
+      "kavlan-1": "2001:660:4406:580:3::1c",
+      "kavlan-11": "2001:660:4406:1a0:503::1c",
+      "kavlan-12": "2001:660:4406:2a0:503::1c",
+      "kavlan-13": "2001:660:4406:4a0:503::1c",
+      "kavlan-14": "2001:660:4406:5a0:503::1c",
+      "kavlan-16": "2001:660:4406:7a0:503::1c",
+      "kavlan-18": "2001:660:4406:8a0:503::1c",
+      "kavlan-2": "2001:660:4406:581:3::1c",
+      "kavlan-20": "2001:660:4406:3a0:503::1c",
+      "kavlan-21": "2001:660:4406:6a0:503::1c",
+      "kavlan-3": "2001:660:4406:582:3::1c",
+      "kavlan-4": "2001:660:4406:590:3::1c",
+      "kavlan-5": "2001:660:4406:591:3::1c",
+      "kavlan-6": "2001:660:4406:592:3::1c",
+      "kavlan-7": "2001:660:4406:593:3::1c",
+      "kavlan-8": "2001:660:4406:594:3::1c",
+      "kavlan-9": "2001:660:4406:595:3::1c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::1c",
-      "kavlan-11": "2001:660:4406:1a0:503:1::1c",
-      "kavlan-12": "2001:660:4406:2a0:503:1::1c",
-      "kavlan-13": "2001:660:4406:4a0:503:1::1c",
-      "kavlan-14": "2001:660:4406:5a0:503:1::1c",
-      "kavlan-16": "2001:660:4406:7a0:503:1::1c",
-      "kavlan-18": "2001:660:4406:8a0:503:1::1c",
-      "kavlan-2": "2001:660:4406:581:3:1::1c",
-      "kavlan-20": "2001:660:4406:3a0:503:1::1c",
-      "kavlan-21": "2001:660:4406:6a0:503:1::1c",
-      "kavlan-3": "2001:660:4406:582:3:1::1c",
-      "kavlan-4": "2001:660:4406:590:3:1::1c",
-      "kavlan-5": "2001:660:4406:591:3:1::1c",
-      "kavlan-6": "2001:660:4406:592:3:1::1c",
-      "kavlan-7": "2001:660:4406:593:3:1::1c",
-      "kavlan-8": "2001:660:4406:594:3:1::1c",
-      "kavlan-9": "2001:660:4406:595:3:1::1c"
+      "kavlan-1": "2001:660:4406:580:3:1:0:1c",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:1c",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:1c",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:1c",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:1c",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:1c",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:1c",
+      "kavlan-2": "2001:660:4406:581:3:1:0:1c",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:1c",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:1c",
+      "kavlan-3": "2001:660:4406:582:3:1:0:1c",
+      "kavlan-4": "2001:660:4406:590:3:1:0:1c",
+      "kavlan-5": "2001:660:4406:591:3:1:0:1c",
+      "kavlan-6": "2001:660:4406:592:3:1:0:1c",
+      "kavlan-7": "2001:660:4406:593:3:1:0:1c",
+      "kavlan-8": "2001:660:4406:594:3:1:0:1c",
+      "kavlan-9": "2001:660:4406:595:3:1:0:1c"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.28",
-      "ip6": "2001:660:4406:500:3:0::1c",
+      "ip6": "2001:660:4406:500:3::1c",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:f2",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.156",
-      "ip6": "2001:660:4406:500:3:1::1c",
+      "ip6": "2001:660:4406:500:3:1:0:1c",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:f3",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-29.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-29.json
index 5b25b8c7ad39121ffa684b68a02c7ac827d9cfec..03cd2df14cd79f7d3fbd250bae2f9f03ad1733f2 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-29.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-29.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::1d",
-      "kavlan-11": "2001:660:4406:1a0:503:0::1d",
-      "kavlan-12": "2001:660:4406:2a0:503:0::1d",
-      "kavlan-13": "2001:660:4406:4a0:503:0::1d",
-      "kavlan-14": "2001:660:4406:5a0:503:0::1d",
-      "kavlan-16": "2001:660:4406:7a0:503:0::1d",
-      "kavlan-18": "2001:660:4406:8a0:503:0::1d",
-      "kavlan-2": "2001:660:4406:581:3:0::1d",
-      "kavlan-20": "2001:660:4406:3a0:503:0::1d",
-      "kavlan-21": "2001:660:4406:6a0:503:0::1d",
-      "kavlan-3": "2001:660:4406:582:3:0::1d",
-      "kavlan-4": "2001:660:4406:590:3:0::1d",
-      "kavlan-5": "2001:660:4406:591:3:0::1d",
-      "kavlan-6": "2001:660:4406:592:3:0::1d",
-      "kavlan-7": "2001:660:4406:593:3:0::1d",
-      "kavlan-8": "2001:660:4406:594:3:0::1d",
-      "kavlan-9": "2001:660:4406:595:3:0::1d"
+      "kavlan-1": "2001:660:4406:580:3::1d",
+      "kavlan-11": "2001:660:4406:1a0:503::1d",
+      "kavlan-12": "2001:660:4406:2a0:503::1d",
+      "kavlan-13": "2001:660:4406:4a0:503::1d",
+      "kavlan-14": "2001:660:4406:5a0:503::1d",
+      "kavlan-16": "2001:660:4406:7a0:503::1d",
+      "kavlan-18": "2001:660:4406:8a0:503::1d",
+      "kavlan-2": "2001:660:4406:581:3::1d",
+      "kavlan-20": "2001:660:4406:3a0:503::1d",
+      "kavlan-21": "2001:660:4406:6a0:503::1d",
+      "kavlan-3": "2001:660:4406:582:3::1d",
+      "kavlan-4": "2001:660:4406:590:3::1d",
+      "kavlan-5": "2001:660:4406:591:3::1d",
+      "kavlan-6": "2001:660:4406:592:3::1d",
+      "kavlan-7": "2001:660:4406:593:3::1d",
+      "kavlan-8": "2001:660:4406:594:3::1d",
+      "kavlan-9": "2001:660:4406:595:3::1d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::1d",
-      "kavlan-11": "2001:660:4406:1a0:503:1::1d",
-      "kavlan-12": "2001:660:4406:2a0:503:1::1d",
-      "kavlan-13": "2001:660:4406:4a0:503:1::1d",
-      "kavlan-14": "2001:660:4406:5a0:503:1::1d",
-      "kavlan-16": "2001:660:4406:7a0:503:1::1d",
-      "kavlan-18": "2001:660:4406:8a0:503:1::1d",
-      "kavlan-2": "2001:660:4406:581:3:1::1d",
-      "kavlan-20": "2001:660:4406:3a0:503:1::1d",
-      "kavlan-21": "2001:660:4406:6a0:503:1::1d",
-      "kavlan-3": "2001:660:4406:582:3:1::1d",
-      "kavlan-4": "2001:660:4406:590:3:1::1d",
-      "kavlan-5": "2001:660:4406:591:3:1::1d",
-      "kavlan-6": "2001:660:4406:592:3:1::1d",
-      "kavlan-7": "2001:660:4406:593:3:1::1d",
-      "kavlan-8": "2001:660:4406:594:3:1::1d",
-      "kavlan-9": "2001:660:4406:595:3:1::1d"
+      "kavlan-1": "2001:660:4406:580:3:1:0:1d",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:1d",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:1d",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:1d",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:1d",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:1d",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:1d",
+      "kavlan-2": "2001:660:4406:581:3:1:0:1d",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:1d",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:1d",
+      "kavlan-3": "2001:660:4406:582:3:1:0:1d",
+      "kavlan-4": "2001:660:4406:590:3:1:0:1d",
+      "kavlan-5": "2001:660:4406:591:3:1:0:1d",
+      "kavlan-6": "2001:660:4406:592:3:1:0:1d",
+      "kavlan-7": "2001:660:4406:593:3:1:0:1d",
+      "kavlan-8": "2001:660:4406:594:3:1:0:1d",
+      "kavlan-9": "2001:660:4406:595:3:1:0:1d"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.29",
-      "ip6": "2001:660:4406:500:3:0::1d",
+      "ip6": "2001:660:4406:500:3::1d",
       "kavlan": true,
       "mac": "98:03:9b:87:d9:f6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.157",
-      "ip6": "2001:660:4406:500:3:1::1d",
+      "ip6": "2001:660:4406:500:3:1:0:1d",
       "kavlan": true,
       "mac": "98:03:9b:87:d9:f7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-3.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-3.json
index 4dfa93daedc6dafd5a8c7d208c029f47e379bfd7..95bea7806cc65f78182c33fd6a172faeadecaac4 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-3.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-3.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::3",
-      "kavlan-11": "2001:660:4406:1a0:503:0::3",
-      "kavlan-12": "2001:660:4406:2a0:503:0::3",
-      "kavlan-13": "2001:660:4406:4a0:503:0::3",
-      "kavlan-14": "2001:660:4406:5a0:503:0::3",
-      "kavlan-16": "2001:660:4406:7a0:503:0::3",
-      "kavlan-18": "2001:660:4406:8a0:503:0::3",
-      "kavlan-2": "2001:660:4406:581:3:0::3",
-      "kavlan-20": "2001:660:4406:3a0:503:0::3",
-      "kavlan-21": "2001:660:4406:6a0:503:0::3",
-      "kavlan-3": "2001:660:4406:582:3:0::3",
-      "kavlan-4": "2001:660:4406:590:3:0::3",
-      "kavlan-5": "2001:660:4406:591:3:0::3",
-      "kavlan-6": "2001:660:4406:592:3:0::3",
-      "kavlan-7": "2001:660:4406:593:3:0::3",
-      "kavlan-8": "2001:660:4406:594:3:0::3",
-      "kavlan-9": "2001:660:4406:595:3:0::3"
+      "kavlan-1": "2001:660:4406:580:3::3",
+      "kavlan-11": "2001:660:4406:1a0:503::3",
+      "kavlan-12": "2001:660:4406:2a0:503::3",
+      "kavlan-13": "2001:660:4406:4a0:503::3",
+      "kavlan-14": "2001:660:4406:5a0:503::3",
+      "kavlan-16": "2001:660:4406:7a0:503::3",
+      "kavlan-18": "2001:660:4406:8a0:503::3",
+      "kavlan-2": "2001:660:4406:581:3::3",
+      "kavlan-20": "2001:660:4406:3a0:503::3",
+      "kavlan-21": "2001:660:4406:6a0:503::3",
+      "kavlan-3": "2001:660:4406:582:3::3",
+      "kavlan-4": "2001:660:4406:590:3::3",
+      "kavlan-5": "2001:660:4406:591:3::3",
+      "kavlan-6": "2001:660:4406:592:3::3",
+      "kavlan-7": "2001:660:4406:593:3::3",
+      "kavlan-8": "2001:660:4406:594:3::3",
+      "kavlan-9": "2001:660:4406:595:3::3"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::3",
-      "kavlan-11": "2001:660:4406:1a0:503:1::3",
-      "kavlan-12": "2001:660:4406:2a0:503:1::3",
-      "kavlan-13": "2001:660:4406:4a0:503:1::3",
-      "kavlan-14": "2001:660:4406:5a0:503:1::3",
-      "kavlan-16": "2001:660:4406:7a0:503:1::3",
-      "kavlan-18": "2001:660:4406:8a0:503:1::3",
-      "kavlan-2": "2001:660:4406:581:3:1::3",
-      "kavlan-20": "2001:660:4406:3a0:503:1::3",
-      "kavlan-21": "2001:660:4406:6a0:503:1::3",
-      "kavlan-3": "2001:660:4406:582:3:1::3",
-      "kavlan-4": "2001:660:4406:590:3:1::3",
-      "kavlan-5": "2001:660:4406:591:3:1::3",
-      "kavlan-6": "2001:660:4406:592:3:1::3",
-      "kavlan-7": "2001:660:4406:593:3:1::3",
-      "kavlan-8": "2001:660:4406:594:3:1::3",
-      "kavlan-9": "2001:660:4406:595:3:1::3"
+      "kavlan-1": "2001:660:4406:580:3:1:0:3",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:3",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:3",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:3",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:3",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:3",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:3",
+      "kavlan-2": "2001:660:4406:581:3:1:0:3",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:3",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:3",
+      "kavlan-3": "2001:660:4406:582:3:1:0:3",
+      "kavlan-4": "2001:660:4406:590:3:1:0:3",
+      "kavlan-5": "2001:660:4406:591:3:1:0:3",
+      "kavlan-6": "2001:660:4406:592:3:1:0:3",
+      "kavlan-7": "2001:660:4406:593:3:1:0:3",
+      "kavlan-8": "2001:660:4406:594:3:1:0:3",
+      "kavlan-9": "2001:660:4406:595:3:1:0:3"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.3",
-      "ip6": "2001:660:4406:500:3:0::3",
+      "ip6": "2001:660:4406:500:3::3",
       "kavlan": true,
       "mac": "98:03:9b:b0:cc:a6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.131",
-      "ip6": "2001:660:4406:500:3:1::3",
+      "ip6": "2001:660:4406:500:3:1:0:3",
       "kavlan": true,
       "mac": "98:03:9b:b0:cc:a7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-30.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-30.json
index 1ffa0fa6567aae4e50a66265ff239e1e6312a64d..174448ac1d0e591820bc560539de020fee23b531 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-30.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-30.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::1e",
-      "kavlan-11": "2001:660:4406:1a0:503:0::1e",
-      "kavlan-12": "2001:660:4406:2a0:503:0::1e",
-      "kavlan-13": "2001:660:4406:4a0:503:0::1e",
-      "kavlan-14": "2001:660:4406:5a0:503:0::1e",
-      "kavlan-16": "2001:660:4406:7a0:503:0::1e",
-      "kavlan-18": "2001:660:4406:8a0:503:0::1e",
-      "kavlan-2": "2001:660:4406:581:3:0::1e",
-      "kavlan-20": "2001:660:4406:3a0:503:0::1e",
-      "kavlan-21": "2001:660:4406:6a0:503:0::1e",
-      "kavlan-3": "2001:660:4406:582:3:0::1e",
-      "kavlan-4": "2001:660:4406:590:3:0::1e",
-      "kavlan-5": "2001:660:4406:591:3:0::1e",
-      "kavlan-6": "2001:660:4406:592:3:0::1e",
-      "kavlan-7": "2001:660:4406:593:3:0::1e",
-      "kavlan-8": "2001:660:4406:594:3:0::1e",
-      "kavlan-9": "2001:660:4406:595:3:0::1e"
+      "kavlan-1": "2001:660:4406:580:3::1e",
+      "kavlan-11": "2001:660:4406:1a0:503::1e",
+      "kavlan-12": "2001:660:4406:2a0:503::1e",
+      "kavlan-13": "2001:660:4406:4a0:503::1e",
+      "kavlan-14": "2001:660:4406:5a0:503::1e",
+      "kavlan-16": "2001:660:4406:7a0:503::1e",
+      "kavlan-18": "2001:660:4406:8a0:503::1e",
+      "kavlan-2": "2001:660:4406:581:3::1e",
+      "kavlan-20": "2001:660:4406:3a0:503::1e",
+      "kavlan-21": "2001:660:4406:6a0:503::1e",
+      "kavlan-3": "2001:660:4406:582:3::1e",
+      "kavlan-4": "2001:660:4406:590:3::1e",
+      "kavlan-5": "2001:660:4406:591:3::1e",
+      "kavlan-6": "2001:660:4406:592:3::1e",
+      "kavlan-7": "2001:660:4406:593:3::1e",
+      "kavlan-8": "2001:660:4406:594:3::1e",
+      "kavlan-9": "2001:660:4406:595:3::1e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::1e",
-      "kavlan-11": "2001:660:4406:1a0:503:1::1e",
-      "kavlan-12": "2001:660:4406:2a0:503:1::1e",
-      "kavlan-13": "2001:660:4406:4a0:503:1::1e",
-      "kavlan-14": "2001:660:4406:5a0:503:1::1e",
-      "kavlan-16": "2001:660:4406:7a0:503:1::1e",
-      "kavlan-18": "2001:660:4406:8a0:503:1::1e",
-      "kavlan-2": "2001:660:4406:581:3:1::1e",
-      "kavlan-20": "2001:660:4406:3a0:503:1::1e",
-      "kavlan-21": "2001:660:4406:6a0:503:1::1e",
-      "kavlan-3": "2001:660:4406:582:3:1::1e",
-      "kavlan-4": "2001:660:4406:590:3:1::1e",
-      "kavlan-5": "2001:660:4406:591:3:1::1e",
-      "kavlan-6": "2001:660:4406:592:3:1::1e",
-      "kavlan-7": "2001:660:4406:593:3:1::1e",
-      "kavlan-8": "2001:660:4406:594:3:1::1e",
-      "kavlan-9": "2001:660:4406:595:3:1::1e"
+      "kavlan-1": "2001:660:4406:580:3:1:0:1e",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:1e",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:1e",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:1e",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:1e",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:1e",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:1e",
+      "kavlan-2": "2001:660:4406:581:3:1:0:1e",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:1e",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:1e",
+      "kavlan-3": "2001:660:4406:582:3:1:0:1e",
+      "kavlan-4": "2001:660:4406:590:3:1:0:1e",
+      "kavlan-5": "2001:660:4406:591:3:1:0:1e",
+      "kavlan-6": "2001:660:4406:592:3:1:0:1e",
+      "kavlan-7": "2001:660:4406:593:3:1:0:1e",
+      "kavlan-8": "2001:660:4406:594:3:1:0:1e",
+      "kavlan-9": "2001:660:4406:595:3:1:0:1e"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.30",
-      "ip6": "2001:660:4406:500:3:0::1e",
+      "ip6": "2001:660:4406:500:3::1e",
       "kavlan": true,
       "mac": "98:03:9b:b0:ac:c6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.158",
-      "ip6": "2001:660:4406:500:3:1::1e",
+      "ip6": "2001:660:4406:500:3:1:0:1e",
       "kavlan": true,
       "mac": "98:03:9b:b0:ac:c7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-31.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-31.json
index 14e110c04831099fe2f991c352aaa14fb7792248..1f0e9b332c3aa626bb67d8eecb6646ef51cf62f5 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-31.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-31.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::1f",
-      "kavlan-11": "2001:660:4406:1a0:503:0::1f",
-      "kavlan-12": "2001:660:4406:2a0:503:0::1f",
-      "kavlan-13": "2001:660:4406:4a0:503:0::1f",
-      "kavlan-14": "2001:660:4406:5a0:503:0::1f",
-      "kavlan-16": "2001:660:4406:7a0:503:0::1f",
-      "kavlan-18": "2001:660:4406:8a0:503:0::1f",
-      "kavlan-2": "2001:660:4406:581:3:0::1f",
-      "kavlan-20": "2001:660:4406:3a0:503:0::1f",
-      "kavlan-21": "2001:660:4406:6a0:503:0::1f",
-      "kavlan-3": "2001:660:4406:582:3:0::1f",
-      "kavlan-4": "2001:660:4406:590:3:0::1f",
-      "kavlan-5": "2001:660:4406:591:3:0::1f",
-      "kavlan-6": "2001:660:4406:592:3:0::1f",
-      "kavlan-7": "2001:660:4406:593:3:0::1f",
-      "kavlan-8": "2001:660:4406:594:3:0::1f",
-      "kavlan-9": "2001:660:4406:595:3:0::1f"
+      "kavlan-1": "2001:660:4406:580:3::1f",
+      "kavlan-11": "2001:660:4406:1a0:503::1f",
+      "kavlan-12": "2001:660:4406:2a0:503::1f",
+      "kavlan-13": "2001:660:4406:4a0:503::1f",
+      "kavlan-14": "2001:660:4406:5a0:503::1f",
+      "kavlan-16": "2001:660:4406:7a0:503::1f",
+      "kavlan-18": "2001:660:4406:8a0:503::1f",
+      "kavlan-2": "2001:660:4406:581:3::1f",
+      "kavlan-20": "2001:660:4406:3a0:503::1f",
+      "kavlan-21": "2001:660:4406:6a0:503::1f",
+      "kavlan-3": "2001:660:4406:582:3::1f",
+      "kavlan-4": "2001:660:4406:590:3::1f",
+      "kavlan-5": "2001:660:4406:591:3::1f",
+      "kavlan-6": "2001:660:4406:592:3::1f",
+      "kavlan-7": "2001:660:4406:593:3::1f",
+      "kavlan-8": "2001:660:4406:594:3::1f",
+      "kavlan-9": "2001:660:4406:595:3::1f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::1f",
-      "kavlan-11": "2001:660:4406:1a0:503:1::1f",
-      "kavlan-12": "2001:660:4406:2a0:503:1::1f",
-      "kavlan-13": "2001:660:4406:4a0:503:1::1f",
-      "kavlan-14": "2001:660:4406:5a0:503:1::1f",
-      "kavlan-16": "2001:660:4406:7a0:503:1::1f",
-      "kavlan-18": "2001:660:4406:8a0:503:1::1f",
-      "kavlan-2": "2001:660:4406:581:3:1::1f",
-      "kavlan-20": "2001:660:4406:3a0:503:1::1f",
-      "kavlan-21": "2001:660:4406:6a0:503:1::1f",
-      "kavlan-3": "2001:660:4406:582:3:1::1f",
-      "kavlan-4": "2001:660:4406:590:3:1::1f",
-      "kavlan-5": "2001:660:4406:591:3:1::1f",
-      "kavlan-6": "2001:660:4406:592:3:1::1f",
-      "kavlan-7": "2001:660:4406:593:3:1::1f",
-      "kavlan-8": "2001:660:4406:594:3:1::1f",
-      "kavlan-9": "2001:660:4406:595:3:1::1f"
+      "kavlan-1": "2001:660:4406:580:3:1:0:1f",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:1f",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:1f",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:1f",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:1f",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:1f",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:1f",
+      "kavlan-2": "2001:660:4406:581:3:1:0:1f",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:1f",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:1f",
+      "kavlan-3": "2001:660:4406:582:3:1:0:1f",
+      "kavlan-4": "2001:660:4406:590:3:1:0:1f",
+      "kavlan-5": "2001:660:4406:591:3:1:0:1f",
+      "kavlan-6": "2001:660:4406:592:3:1:0:1f",
+      "kavlan-7": "2001:660:4406:593:3:1:0:1f",
+      "kavlan-8": "2001:660:4406:594:3:1:0:1f",
+      "kavlan-9": "2001:660:4406:595:3:1:0:1f"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.31",
-      "ip6": "2001:660:4406:500:3:0::1f",
+      "ip6": "2001:660:4406:500:3::1f",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:3e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.159",
-      "ip6": "2001:660:4406:500:3:1::1f",
+      "ip6": "2001:660:4406:500:3:1:0:1f",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:3f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-32.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-32.json
index 450c5b4a946ee41a90b2f023338d0eb2d6563477..dc827f2944add1bfd20e0c343a3447765bbe9a5c 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-32.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-32.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::20",
-      "kavlan-11": "2001:660:4406:1a0:503:0::20",
-      "kavlan-12": "2001:660:4406:2a0:503:0::20",
-      "kavlan-13": "2001:660:4406:4a0:503:0::20",
-      "kavlan-14": "2001:660:4406:5a0:503:0::20",
-      "kavlan-16": "2001:660:4406:7a0:503:0::20",
-      "kavlan-18": "2001:660:4406:8a0:503:0::20",
-      "kavlan-2": "2001:660:4406:581:3:0::20",
-      "kavlan-20": "2001:660:4406:3a0:503:0::20",
-      "kavlan-21": "2001:660:4406:6a0:503:0::20",
-      "kavlan-3": "2001:660:4406:582:3:0::20",
-      "kavlan-4": "2001:660:4406:590:3:0::20",
-      "kavlan-5": "2001:660:4406:591:3:0::20",
-      "kavlan-6": "2001:660:4406:592:3:0::20",
-      "kavlan-7": "2001:660:4406:593:3:0::20",
-      "kavlan-8": "2001:660:4406:594:3:0::20",
-      "kavlan-9": "2001:660:4406:595:3:0::20"
+      "kavlan-1": "2001:660:4406:580:3::20",
+      "kavlan-11": "2001:660:4406:1a0:503::20",
+      "kavlan-12": "2001:660:4406:2a0:503::20",
+      "kavlan-13": "2001:660:4406:4a0:503::20",
+      "kavlan-14": "2001:660:4406:5a0:503::20",
+      "kavlan-16": "2001:660:4406:7a0:503::20",
+      "kavlan-18": "2001:660:4406:8a0:503::20",
+      "kavlan-2": "2001:660:4406:581:3::20",
+      "kavlan-20": "2001:660:4406:3a0:503::20",
+      "kavlan-21": "2001:660:4406:6a0:503::20",
+      "kavlan-3": "2001:660:4406:582:3::20",
+      "kavlan-4": "2001:660:4406:590:3::20",
+      "kavlan-5": "2001:660:4406:591:3::20",
+      "kavlan-6": "2001:660:4406:592:3::20",
+      "kavlan-7": "2001:660:4406:593:3::20",
+      "kavlan-8": "2001:660:4406:594:3::20",
+      "kavlan-9": "2001:660:4406:595:3::20"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::20",
-      "kavlan-11": "2001:660:4406:1a0:503:1::20",
-      "kavlan-12": "2001:660:4406:2a0:503:1::20",
-      "kavlan-13": "2001:660:4406:4a0:503:1::20",
-      "kavlan-14": "2001:660:4406:5a0:503:1::20",
-      "kavlan-16": "2001:660:4406:7a0:503:1::20",
-      "kavlan-18": "2001:660:4406:8a0:503:1::20",
-      "kavlan-2": "2001:660:4406:581:3:1::20",
-      "kavlan-20": "2001:660:4406:3a0:503:1::20",
-      "kavlan-21": "2001:660:4406:6a0:503:1::20",
-      "kavlan-3": "2001:660:4406:582:3:1::20",
-      "kavlan-4": "2001:660:4406:590:3:1::20",
-      "kavlan-5": "2001:660:4406:591:3:1::20",
-      "kavlan-6": "2001:660:4406:592:3:1::20",
-      "kavlan-7": "2001:660:4406:593:3:1::20",
-      "kavlan-8": "2001:660:4406:594:3:1::20",
-      "kavlan-9": "2001:660:4406:595:3:1::20"
+      "kavlan-1": "2001:660:4406:580:3:1:0:20",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:20",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:20",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:20",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:20",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:20",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:20",
+      "kavlan-2": "2001:660:4406:581:3:1:0:20",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:20",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:20",
+      "kavlan-3": "2001:660:4406:582:3:1:0:20",
+      "kavlan-4": "2001:660:4406:590:3:1:0:20",
+      "kavlan-5": "2001:660:4406:591:3:1:0:20",
+      "kavlan-6": "2001:660:4406:592:3:1:0:20",
+      "kavlan-7": "2001:660:4406:593:3:1:0:20",
+      "kavlan-8": "2001:660:4406:594:3:1:0:20",
+      "kavlan-9": "2001:660:4406:595:3:1:0:20"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.32",
-      "ip6": "2001:660:4406:500:3:0::20",
+      "ip6": "2001:660:4406:500:3::20",
       "kavlan": true,
       "mac": "98:03:9b:b0:69:22",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.160",
-      "ip6": "2001:660:4406:500:3:1::20",
+      "ip6": "2001:660:4406:500:3:1:0:20",
       "kavlan": true,
       "mac": "98:03:9b:b0:69:23",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-33.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-33.json
index 7798f439432a8a7988c642c40dcf8f5b8ca53815..ec3e0147db4b79a1461e562ac79c508bcaf63b0d 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-33.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-33.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::21",
-      "kavlan-11": "2001:660:4406:1a0:503:0::21",
-      "kavlan-12": "2001:660:4406:2a0:503:0::21",
-      "kavlan-13": "2001:660:4406:4a0:503:0::21",
-      "kavlan-14": "2001:660:4406:5a0:503:0::21",
-      "kavlan-16": "2001:660:4406:7a0:503:0::21",
-      "kavlan-18": "2001:660:4406:8a0:503:0::21",
-      "kavlan-2": "2001:660:4406:581:3:0::21",
-      "kavlan-20": "2001:660:4406:3a0:503:0::21",
-      "kavlan-21": "2001:660:4406:6a0:503:0::21",
-      "kavlan-3": "2001:660:4406:582:3:0::21",
-      "kavlan-4": "2001:660:4406:590:3:0::21",
-      "kavlan-5": "2001:660:4406:591:3:0::21",
-      "kavlan-6": "2001:660:4406:592:3:0::21",
-      "kavlan-7": "2001:660:4406:593:3:0::21",
-      "kavlan-8": "2001:660:4406:594:3:0::21",
-      "kavlan-9": "2001:660:4406:595:3:0::21"
+      "kavlan-1": "2001:660:4406:580:3::21",
+      "kavlan-11": "2001:660:4406:1a0:503::21",
+      "kavlan-12": "2001:660:4406:2a0:503::21",
+      "kavlan-13": "2001:660:4406:4a0:503::21",
+      "kavlan-14": "2001:660:4406:5a0:503::21",
+      "kavlan-16": "2001:660:4406:7a0:503::21",
+      "kavlan-18": "2001:660:4406:8a0:503::21",
+      "kavlan-2": "2001:660:4406:581:3::21",
+      "kavlan-20": "2001:660:4406:3a0:503::21",
+      "kavlan-21": "2001:660:4406:6a0:503::21",
+      "kavlan-3": "2001:660:4406:582:3::21",
+      "kavlan-4": "2001:660:4406:590:3::21",
+      "kavlan-5": "2001:660:4406:591:3::21",
+      "kavlan-6": "2001:660:4406:592:3::21",
+      "kavlan-7": "2001:660:4406:593:3::21",
+      "kavlan-8": "2001:660:4406:594:3::21",
+      "kavlan-9": "2001:660:4406:595:3::21"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::21",
-      "kavlan-11": "2001:660:4406:1a0:503:1::21",
-      "kavlan-12": "2001:660:4406:2a0:503:1::21",
-      "kavlan-13": "2001:660:4406:4a0:503:1::21",
-      "kavlan-14": "2001:660:4406:5a0:503:1::21",
-      "kavlan-16": "2001:660:4406:7a0:503:1::21",
-      "kavlan-18": "2001:660:4406:8a0:503:1::21",
-      "kavlan-2": "2001:660:4406:581:3:1::21",
-      "kavlan-20": "2001:660:4406:3a0:503:1::21",
-      "kavlan-21": "2001:660:4406:6a0:503:1::21",
-      "kavlan-3": "2001:660:4406:582:3:1::21",
-      "kavlan-4": "2001:660:4406:590:3:1::21",
-      "kavlan-5": "2001:660:4406:591:3:1::21",
-      "kavlan-6": "2001:660:4406:592:3:1::21",
-      "kavlan-7": "2001:660:4406:593:3:1::21",
-      "kavlan-8": "2001:660:4406:594:3:1::21",
-      "kavlan-9": "2001:660:4406:595:3:1::21"
+      "kavlan-1": "2001:660:4406:580:3:1:0:21",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:21",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:21",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:21",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:21",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:21",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:21",
+      "kavlan-2": "2001:660:4406:581:3:1:0:21",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:21",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:21",
+      "kavlan-3": "2001:660:4406:582:3:1:0:21",
+      "kavlan-4": "2001:660:4406:590:3:1:0:21",
+      "kavlan-5": "2001:660:4406:591:3:1:0:21",
+      "kavlan-6": "2001:660:4406:592:3:1:0:21",
+      "kavlan-7": "2001:660:4406:593:3:1:0:21",
+      "kavlan-8": "2001:660:4406:594:3:1:0:21",
+      "kavlan-9": "2001:660:4406:595:3:1:0:21"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.33",
-      "ip6": "2001:660:4406:500:3:0::21",
+      "ip6": "2001:660:4406:500:3::21",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:12",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.161",
-      "ip6": "2001:660:4406:500:3:1::21",
+      "ip6": "2001:660:4406:500:3:1:0:21",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:13",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-34.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-34.json
index 6d2bd98ca40ee636ae0cd7059689c8bb807b8d51..d64e71382e71cb8b3c60c6df2b6a9b8aeb1fb3b3 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-34.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-34.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::22",
-      "kavlan-11": "2001:660:4406:1a0:503:0::22",
-      "kavlan-12": "2001:660:4406:2a0:503:0::22",
-      "kavlan-13": "2001:660:4406:4a0:503:0::22",
-      "kavlan-14": "2001:660:4406:5a0:503:0::22",
-      "kavlan-16": "2001:660:4406:7a0:503:0::22",
-      "kavlan-18": "2001:660:4406:8a0:503:0::22",
-      "kavlan-2": "2001:660:4406:581:3:0::22",
-      "kavlan-20": "2001:660:4406:3a0:503:0::22",
-      "kavlan-21": "2001:660:4406:6a0:503:0::22",
-      "kavlan-3": "2001:660:4406:582:3:0::22",
-      "kavlan-4": "2001:660:4406:590:3:0::22",
-      "kavlan-5": "2001:660:4406:591:3:0::22",
-      "kavlan-6": "2001:660:4406:592:3:0::22",
-      "kavlan-7": "2001:660:4406:593:3:0::22",
-      "kavlan-8": "2001:660:4406:594:3:0::22",
-      "kavlan-9": "2001:660:4406:595:3:0::22"
+      "kavlan-1": "2001:660:4406:580:3::22",
+      "kavlan-11": "2001:660:4406:1a0:503::22",
+      "kavlan-12": "2001:660:4406:2a0:503::22",
+      "kavlan-13": "2001:660:4406:4a0:503::22",
+      "kavlan-14": "2001:660:4406:5a0:503::22",
+      "kavlan-16": "2001:660:4406:7a0:503::22",
+      "kavlan-18": "2001:660:4406:8a0:503::22",
+      "kavlan-2": "2001:660:4406:581:3::22",
+      "kavlan-20": "2001:660:4406:3a0:503::22",
+      "kavlan-21": "2001:660:4406:6a0:503::22",
+      "kavlan-3": "2001:660:4406:582:3::22",
+      "kavlan-4": "2001:660:4406:590:3::22",
+      "kavlan-5": "2001:660:4406:591:3::22",
+      "kavlan-6": "2001:660:4406:592:3::22",
+      "kavlan-7": "2001:660:4406:593:3::22",
+      "kavlan-8": "2001:660:4406:594:3::22",
+      "kavlan-9": "2001:660:4406:595:3::22"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::22",
-      "kavlan-11": "2001:660:4406:1a0:503:1::22",
-      "kavlan-12": "2001:660:4406:2a0:503:1::22",
-      "kavlan-13": "2001:660:4406:4a0:503:1::22",
-      "kavlan-14": "2001:660:4406:5a0:503:1::22",
-      "kavlan-16": "2001:660:4406:7a0:503:1::22",
-      "kavlan-18": "2001:660:4406:8a0:503:1::22",
-      "kavlan-2": "2001:660:4406:581:3:1::22",
-      "kavlan-20": "2001:660:4406:3a0:503:1::22",
-      "kavlan-21": "2001:660:4406:6a0:503:1::22",
-      "kavlan-3": "2001:660:4406:582:3:1::22",
-      "kavlan-4": "2001:660:4406:590:3:1::22",
-      "kavlan-5": "2001:660:4406:591:3:1::22",
-      "kavlan-6": "2001:660:4406:592:3:1::22",
-      "kavlan-7": "2001:660:4406:593:3:1::22",
-      "kavlan-8": "2001:660:4406:594:3:1::22",
-      "kavlan-9": "2001:660:4406:595:3:1::22"
+      "kavlan-1": "2001:660:4406:580:3:1:0:22",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:22",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:22",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:22",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:22",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:22",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:22",
+      "kavlan-2": "2001:660:4406:581:3:1:0:22",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:22",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:22",
+      "kavlan-3": "2001:660:4406:582:3:1:0:22",
+      "kavlan-4": "2001:660:4406:590:3:1:0:22",
+      "kavlan-5": "2001:660:4406:591:3:1:0:22",
+      "kavlan-6": "2001:660:4406:592:3:1:0:22",
+      "kavlan-7": "2001:660:4406:593:3:1:0:22",
+      "kavlan-8": "2001:660:4406:594:3:1:0:22",
+      "kavlan-9": "2001:660:4406:595:3:1:0:22"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.34",
-      "ip6": "2001:660:4406:500:3:0::22",
+      "ip6": "2001:660:4406:500:3::22",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:22",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.162",
-      "ip6": "2001:660:4406:500:3:1::22",
+      "ip6": "2001:660:4406:500:3:1:0:22",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:23",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-35.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-35.json
index 8a58de58df43ed210d6abc9f81c876b12c6cf5df..1a485cd1b845c852af2aed061967ace0effab0c0 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-35.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-35.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::23",
-      "kavlan-11": "2001:660:4406:1a0:503:0::23",
-      "kavlan-12": "2001:660:4406:2a0:503:0::23",
-      "kavlan-13": "2001:660:4406:4a0:503:0::23",
-      "kavlan-14": "2001:660:4406:5a0:503:0::23",
-      "kavlan-16": "2001:660:4406:7a0:503:0::23",
-      "kavlan-18": "2001:660:4406:8a0:503:0::23",
-      "kavlan-2": "2001:660:4406:581:3:0::23",
-      "kavlan-20": "2001:660:4406:3a0:503:0::23",
-      "kavlan-21": "2001:660:4406:6a0:503:0::23",
-      "kavlan-3": "2001:660:4406:582:3:0::23",
-      "kavlan-4": "2001:660:4406:590:3:0::23",
-      "kavlan-5": "2001:660:4406:591:3:0::23",
-      "kavlan-6": "2001:660:4406:592:3:0::23",
-      "kavlan-7": "2001:660:4406:593:3:0::23",
-      "kavlan-8": "2001:660:4406:594:3:0::23",
-      "kavlan-9": "2001:660:4406:595:3:0::23"
+      "kavlan-1": "2001:660:4406:580:3::23",
+      "kavlan-11": "2001:660:4406:1a0:503::23",
+      "kavlan-12": "2001:660:4406:2a0:503::23",
+      "kavlan-13": "2001:660:4406:4a0:503::23",
+      "kavlan-14": "2001:660:4406:5a0:503::23",
+      "kavlan-16": "2001:660:4406:7a0:503::23",
+      "kavlan-18": "2001:660:4406:8a0:503::23",
+      "kavlan-2": "2001:660:4406:581:3::23",
+      "kavlan-20": "2001:660:4406:3a0:503::23",
+      "kavlan-21": "2001:660:4406:6a0:503::23",
+      "kavlan-3": "2001:660:4406:582:3::23",
+      "kavlan-4": "2001:660:4406:590:3::23",
+      "kavlan-5": "2001:660:4406:591:3::23",
+      "kavlan-6": "2001:660:4406:592:3::23",
+      "kavlan-7": "2001:660:4406:593:3::23",
+      "kavlan-8": "2001:660:4406:594:3::23",
+      "kavlan-9": "2001:660:4406:595:3::23"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::23",
-      "kavlan-11": "2001:660:4406:1a0:503:1::23",
-      "kavlan-12": "2001:660:4406:2a0:503:1::23",
-      "kavlan-13": "2001:660:4406:4a0:503:1::23",
-      "kavlan-14": "2001:660:4406:5a0:503:1::23",
-      "kavlan-16": "2001:660:4406:7a0:503:1::23",
-      "kavlan-18": "2001:660:4406:8a0:503:1::23",
-      "kavlan-2": "2001:660:4406:581:3:1::23",
-      "kavlan-20": "2001:660:4406:3a0:503:1::23",
-      "kavlan-21": "2001:660:4406:6a0:503:1::23",
-      "kavlan-3": "2001:660:4406:582:3:1::23",
-      "kavlan-4": "2001:660:4406:590:3:1::23",
-      "kavlan-5": "2001:660:4406:591:3:1::23",
-      "kavlan-6": "2001:660:4406:592:3:1::23",
-      "kavlan-7": "2001:660:4406:593:3:1::23",
-      "kavlan-8": "2001:660:4406:594:3:1::23",
-      "kavlan-9": "2001:660:4406:595:3:1::23"
+      "kavlan-1": "2001:660:4406:580:3:1:0:23",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:23",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:23",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:23",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:23",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:23",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:23",
+      "kavlan-2": "2001:660:4406:581:3:1:0:23",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:23",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:23",
+      "kavlan-3": "2001:660:4406:582:3:1:0:23",
+      "kavlan-4": "2001:660:4406:590:3:1:0:23",
+      "kavlan-5": "2001:660:4406:591:3:1:0:23",
+      "kavlan-6": "2001:660:4406:592:3:1:0:23",
+      "kavlan-7": "2001:660:4406:593:3:1:0:23",
+      "kavlan-8": "2001:660:4406:594:3:1:0:23",
+      "kavlan-9": "2001:660:4406:595:3:1:0:23"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.35",
-      "ip6": "2001:660:4406:500:3:0::23",
+      "ip6": "2001:660:4406:500:3::23",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:46",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.163",
-      "ip6": "2001:660:4406:500:3:1::23",
+      "ip6": "2001:660:4406:500:3:1:0:23",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:47",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-36.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-36.json
index 5254ccf115e899315e39e8c2bcc4815704c96242..565ae510a940a48ec6b7191dbf70f1391c4a9261 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-36.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-36.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::24",
-      "kavlan-11": "2001:660:4406:1a0:503:0::24",
-      "kavlan-12": "2001:660:4406:2a0:503:0::24",
-      "kavlan-13": "2001:660:4406:4a0:503:0::24",
-      "kavlan-14": "2001:660:4406:5a0:503:0::24",
-      "kavlan-16": "2001:660:4406:7a0:503:0::24",
-      "kavlan-18": "2001:660:4406:8a0:503:0::24",
-      "kavlan-2": "2001:660:4406:581:3:0::24",
-      "kavlan-20": "2001:660:4406:3a0:503:0::24",
-      "kavlan-21": "2001:660:4406:6a0:503:0::24",
-      "kavlan-3": "2001:660:4406:582:3:0::24",
-      "kavlan-4": "2001:660:4406:590:3:0::24",
-      "kavlan-5": "2001:660:4406:591:3:0::24",
-      "kavlan-6": "2001:660:4406:592:3:0::24",
-      "kavlan-7": "2001:660:4406:593:3:0::24",
-      "kavlan-8": "2001:660:4406:594:3:0::24",
-      "kavlan-9": "2001:660:4406:595:3:0::24"
+      "kavlan-1": "2001:660:4406:580:3::24",
+      "kavlan-11": "2001:660:4406:1a0:503::24",
+      "kavlan-12": "2001:660:4406:2a0:503::24",
+      "kavlan-13": "2001:660:4406:4a0:503::24",
+      "kavlan-14": "2001:660:4406:5a0:503::24",
+      "kavlan-16": "2001:660:4406:7a0:503::24",
+      "kavlan-18": "2001:660:4406:8a0:503::24",
+      "kavlan-2": "2001:660:4406:581:3::24",
+      "kavlan-20": "2001:660:4406:3a0:503::24",
+      "kavlan-21": "2001:660:4406:6a0:503::24",
+      "kavlan-3": "2001:660:4406:582:3::24",
+      "kavlan-4": "2001:660:4406:590:3::24",
+      "kavlan-5": "2001:660:4406:591:3::24",
+      "kavlan-6": "2001:660:4406:592:3::24",
+      "kavlan-7": "2001:660:4406:593:3::24",
+      "kavlan-8": "2001:660:4406:594:3::24",
+      "kavlan-9": "2001:660:4406:595:3::24"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::24",
-      "kavlan-11": "2001:660:4406:1a0:503:1::24",
-      "kavlan-12": "2001:660:4406:2a0:503:1::24",
-      "kavlan-13": "2001:660:4406:4a0:503:1::24",
-      "kavlan-14": "2001:660:4406:5a0:503:1::24",
-      "kavlan-16": "2001:660:4406:7a0:503:1::24",
-      "kavlan-18": "2001:660:4406:8a0:503:1::24",
-      "kavlan-2": "2001:660:4406:581:3:1::24",
-      "kavlan-20": "2001:660:4406:3a0:503:1::24",
-      "kavlan-21": "2001:660:4406:6a0:503:1::24",
-      "kavlan-3": "2001:660:4406:582:3:1::24",
-      "kavlan-4": "2001:660:4406:590:3:1::24",
-      "kavlan-5": "2001:660:4406:591:3:1::24",
-      "kavlan-6": "2001:660:4406:592:3:1::24",
-      "kavlan-7": "2001:660:4406:593:3:1::24",
-      "kavlan-8": "2001:660:4406:594:3:1::24",
-      "kavlan-9": "2001:660:4406:595:3:1::24"
+      "kavlan-1": "2001:660:4406:580:3:1:0:24",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:24",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:24",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:24",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:24",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:24",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:24",
+      "kavlan-2": "2001:660:4406:581:3:1:0:24",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:24",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:24",
+      "kavlan-3": "2001:660:4406:582:3:1:0:24",
+      "kavlan-4": "2001:660:4406:590:3:1:0:24",
+      "kavlan-5": "2001:660:4406:591:3:1:0:24",
+      "kavlan-6": "2001:660:4406:592:3:1:0:24",
+      "kavlan-7": "2001:660:4406:593:3:1:0:24",
+      "kavlan-8": "2001:660:4406:594:3:1:0:24",
+      "kavlan-9": "2001:660:4406:595:3:1:0:24"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.36",
-      "ip6": "2001:660:4406:500:3:0::24",
+      "ip6": "2001:660:4406:500:3::24",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:6e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.164",
-      "ip6": "2001:660:4406:500:3:1::24",
+      "ip6": "2001:660:4406:500:3:1:0:24",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:6f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-37.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-37.json
index f71f1564b811e467baabec77d59b85e91a07aeb8..732e1336938114a28060de349713ed52ab61669f 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-37.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-37.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::25",
-      "kavlan-11": "2001:660:4406:1a0:503:0::25",
-      "kavlan-12": "2001:660:4406:2a0:503:0::25",
-      "kavlan-13": "2001:660:4406:4a0:503:0::25",
-      "kavlan-14": "2001:660:4406:5a0:503:0::25",
-      "kavlan-16": "2001:660:4406:7a0:503:0::25",
-      "kavlan-18": "2001:660:4406:8a0:503:0::25",
-      "kavlan-2": "2001:660:4406:581:3:0::25",
-      "kavlan-20": "2001:660:4406:3a0:503:0::25",
-      "kavlan-21": "2001:660:4406:6a0:503:0::25",
-      "kavlan-3": "2001:660:4406:582:3:0::25",
-      "kavlan-4": "2001:660:4406:590:3:0::25",
-      "kavlan-5": "2001:660:4406:591:3:0::25",
-      "kavlan-6": "2001:660:4406:592:3:0::25",
-      "kavlan-7": "2001:660:4406:593:3:0::25",
-      "kavlan-8": "2001:660:4406:594:3:0::25",
-      "kavlan-9": "2001:660:4406:595:3:0::25"
+      "kavlan-1": "2001:660:4406:580:3::25",
+      "kavlan-11": "2001:660:4406:1a0:503::25",
+      "kavlan-12": "2001:660:4406:2a0:503::25",
+      "kavlan-13": "2001:660:4406:4a0:503::25",
+      "kavlan-14": "2001:660:4406:5a0:503::25",
+      "kavlan-16": "2001:660:4406:7a0:503::25",
+      "kavlan-18": "2001:660:4406:8a0:503::25",
+      "kavlan-2": "2001:660:4406:581:3::25",
+      "kavlan-20": "2001:660:4406:3a0:503::25",
+      "kavlan-21": "2001:660:4406:6a0:503::25",
+      "kavlan-3": "2001:660:4406:582:3::25",
+      "kavlan-4": "2001:660:4406:590:3::25",
+      "kavlan-5": "2001:660:4406:591:3::25",
+      "kavlan-6": "2001:660:4406:592:3::25",
+      "kavlan-7": "2001:660:4406:593:3::25",
+      "kavlan-8": "2001:660:4406:594:3::25",
+      "kavlan-9": "2001:660:4406:595:3::25"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::25",
-      "kavlan-11": "2001:660:4406:1a0:503:1::25",
-      "kavlan-12": "2001:660:4406:2a0:503:1::25",
-      "kavlan-13": "2001:660:4406:4a0:503:1::25",
-      "kavlan-14": "2001:660:4406:5a0:503:1::25",
-      "kavlan-16": "2001:660:4406:7a0:503:1::25",
-      "kavlan-18": "2001:660:4406:8a0:503:1::25",
-      "kavlan-2": "2001:660:4406:581:3:1::25",
-      "kavlan-20": "2001:660:4406:3a0:503:1::25",
-      "kavlan-21": "2001:660:4406:6a0:503:1::25",
-      "kavlan-3": "2001:660:4406:582:3:1::25",
-      "kavlan-4": "2001:660:4406:590:3:1::25",
-      "kavlan-5": "2001:660:4406:591:3:1::25",
-      "kavlan-6": "2001:660:4406:592:3:1::25",
-      "kavlan-7": "2001:660:4406:593:3:1::25",
-      "kavlan-8": "2001:660:4406:594:3:1::25",
-      "kavlan-9": "2001:660:4406:595:3:1::25"
+      "kavlan-1": "2001:660:4406:580:3:1:0:25",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:25",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:25",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:25",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:25",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:25",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:25",
+      "kavlan-2": "2001:660:4406:581:3:1:0:25",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:25",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:25",
+      "kavlan-3": "2001:660:4406:582:3:1:0:25",
+      "kavlan-4": "2001:660:4406:590:3:1:0:25",
+      "kavlan-5": "2001:660:4406:591:3:1:0:25",
+      "kavlan-6": "2001:660:4406:592:3:1:0:25",
+      "kavlan-7": "2001:660:4406:593:3:1:0:25",
+      "kavlan-8": "2001:660:4406:594:3:1:0:25",
+      "kavlan-9": "2001:660:4406:595:3:1:0:25"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.37",
-      "ip6": "2001:660:4406:500:3:0::25",
+      "ip6": "2001:660:4406:500:3::25",
       "kavlan": true,
       "mac": "98:03:9b:b0:69:6a",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.165",
-      "ip6": "2001:660:4406:500:3:1::25",
+      "ip6": "2001:660:4406:500:3:1:0:25",
       "kavlan": true,
       "mac": "98:03:9b:b0:69:6b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-38.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-38.json
index bb39d3e3776deaf738986b0d376aeb1cd554698c..00b2ae802d1deb3cdb54d4d41a9705d7facdeef0 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-38.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-38.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::26",
-      "kavlan-11": "2001:660:4406:1a0:503:0::26",
-      "kavlan-12": "2001:660:4406:2a0:503:0::26",
-      "kavlan-13": "2001:660:4406:4a0:503:0::26",
-      "kavlan-14": "2001:660:4406:5a0:503:0::26",
-      "kavlan-16": "2001:660:4406:7a0:503:0::26",
-      "kavlan-18": "2001:660:4406:8a0:503:0::26",
-      "kavlan-2": "2001:660:4406:581:3:0::26",
-      "kavlan-20": "2001:660:4406:3a0:503:0::26",
-      "kavlan-21": "2001:660:4406:6a0:503:0::26",
-      "kavlan-3": "2001:660:4406:582:3:0::26",
-      "kavlan-4": "2001:660:4406:590:3:0::26",
-      "kavlan-5": "2001:660:4406:591:3:0::26",
-      "kavlan-6": "2001:660:4406:592:3:0::26",
-      "kavlan-7": "2001:660:4406:593:3:0::26",
-      "kavlan-8": "2001:660:4406:594:3:0::26",
-      "kavlan-9": "2001:660:4406:595:3:0::26"
+      "kavlan-1": "2001:660:4406:580:3::26",
+      "kavlan-11": "2001:660:4406:1a0:503::26",
+      "kavlan-12": "2001:660:4406:2a0:503::26",
+      "kavlan-13": "2001:660:4406:4a0:503::26",
+      "kavlan-14": "2001:660:4406:5a0:503::26",
+      "kavlan-16": "2001:660:4406:7a0:503::26",
+      "kavlan-18": "2001:660:4406:8a0:503::26",
+      "kavlan-2": "2001:660:4406:581:3::26",
+      "kavlan-20": "2001:660:4406:3a0:503::26",
+      "kavlan-21": "2001:660:4406:6a0:503::26",
+      "kavlan-3": "2001:660:4406:582:3::26",
+      "kavlan-4": "2001:660:4406:590:3::26",
+      "kavlan-5": "2001:660:4406:591:3::26",
+      "kavlan-6": "2001:660:4406:592:3::26",
+      "kavlan-7": "2001:660:4406:593:3::26",
+      "kavlan-8": "2001:660:4406:594:3::26",
+      "kavlan-9": "2001:660:4406:595:3::26"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::26",
-      "kavlan-11": "2001:660:4406:1a0:503:1::26",
-      "kavlan-12": "2001:660:4406:2a0:503:1::26",
-      "kavlan-13": "2001:660:4406:4a0:503:1::26",
-      "kavlan-14": "2001:660:4406:5a0:503:1::26",
-      "kavlan-16": "2001:660:4406:7a0:503:1::26",
-      "kavlan-18": "2001:660:4406:8a0:503:1::26",
-      "kavlan-2": "2001:660:4406:581:3:1::26",
-      "kavlan-20": "2001:660:4406:3a0:503:1::26",
-      "kavlan-21": "2001:660:4406:6a0:503:1::26",
-      "kavlan-3": "2001:660:4406:582:3:1::26",
-      "kavlan-4": "2001:660:4406:590:3:1::26",
-      "kavlan-5": "2001:660:4406:591:3:1::26",
-      "kavlan-6": "2001:660:4406:592:3:1::26",
-      "kavlan-7": "2001:660:4406:593:3:1::26",
-      "kavlan-8": "2001:660:4406:594:3:1::26",
-      "kavlan-9": "2001:660:4406:595:3:1::26"
+      "kavlan-1": "2001:660:4406:580:3:1:0:26",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:26",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:26",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:26",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:26",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:26",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:26",
+      "kavlan-2": "2001:660:4406:581:3:1:0:26",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:26",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:26",
+      "kavlan-3": "2001:660:4406:582:3:1:0:26",
+      "kavlan-4": "2001:660:4406:590:3:1:0:26",
+      "kavlan-5": "2001:660:4406:591:3:1:0:26",
+      "kavlan-6": "2001:660:4406:592:3:1:0:26",
+      "kavlan-7": "2001:660:4406:593:3:1:0:26",
+      "kavlan-8": "2001:660:4406:594:3:1:0:26",
+      "kavlan-9": "2001:660:4406:595:3:1:0:26"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.38",
-      "ip6": "2001:660:4406:500:3:0::26",
+      "ip6": "2001:660:4406:500:3::26",
       "kavlan": true,
       "mac": "98:03:9b:b0:b0:ae",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.166",
-      "ip6": "2001:660:4406:500:3:1::26",
+      "ip6": "2001:660:4406:500:3:1:0:26",
       "kavlan": true,
       "mac": "98:03:9b:b0:b0:af",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-39.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-39.json
index 1f9caa269d733c25b3baf5abdcdeb1a217d14efe..af8e2be7e3eb22ba1c5b8f6e5cc4ed8327830bb3 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-39.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-39.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::27",
-      "kavlan-11": "2001:660:4406:1a0:503:0::27",
-      "kavlan-12": "2001:660:4406:2a0:503:0::27",
-      "kavlan-13": "2001:660:4406:4a0:503:0::27",
-      "kavlan-14": "2001:660:4406:5a0:503:0::27",
-      "kavlan-16": "2001:660:4406:7a0:503:0::27",
-      "kavlan-18": "2001:660:4406:8a0:503:0::27",
-      "kavlan-2": "2001:660:4406:581:3:0::27",
-      "kavlan-20": "2001:660:4406:3a0:503:0::27",
-      "kavlan-21": "2001:660:4406:6a0:503:0::27",
-      "kavlan-3": "2001:660:4406:582:3:0::27",
-      "kavlan-4": "2001:660:4406:590:3:0::27",
-      "kavlan-5": "2001:660:4406:591:3:0::27",
-      "kavlan-6": "2001:660:4406:592:3:0::27",
-      "kavlan-7": "2001:660:4406:593:3:0::27",
-      "kavlan-8": "2001:660:4406:594:3:0::27",
-      "kavlan-9": "2001:660:4406:595:3:0::27"
+      "kavlan-1": "2001:660:4406:580:3::27",
+      "kavlan-11": "2001:660:4406:1a0:503::27",
+      "kavlan-12": "2001:660:4406:2a0:503::27",
+      "kavlan-13": "2001:660:4406:4a0:503::27",
+      "kavlan-14": "2001:660:4406:5a0:503::27",
+      "kavlan-16": "2001:660:4406:7a0:503::27",
+      "kavlan-18": "2001:660:4406:8a0:503::27",
+      "kavlan-2": "2001:660:4406:581:3::27",
+      "kavlan-20": "2001:660:4406:3a0:503::27",
+      "kavlan-21": "2001:660:4406:6a0:503::27",
+      "kavlan-3": "2001:660:4406:582:3::27",
+      "kavlan-4": "2001:660:4406:590:3::27",
+      "kavlan-5": "2001:660:4406:591:3::27",
+      "kavlan-6": "2001:660:4406:592:3::27",
+      "kavlan-7": "2001:660:4406:593:3::27",
+      "kavlan-8": "2001:660:4406:594:3::27",
+      "kavlan-9": "2001:660:4406:595:3::27"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::27",
-      "kavlan-11": "2001:660:4406:1a0:503:1::27",
-      "kavlan-12": "2001:660:4406:2a0:503:1::27",
-      "kavlan-13": "2001:660:4406:4a0:503:1::27",
-      "kavlan-14": "2001:660:4406:5a0:503:1::27",
-      "kavlan-16": "2001:660:4406:7a0:503:1::27",
-      "kavlan-18": "2001:660:4406:8a0:503:1::27",
-      "kavlan-2": "2001:660:4406:581:3:1::27",
-      "kavlan-20": "2001:660:4406:3a0:503:1::27",
-      "kavlan-21": "2001:660:4406:6a0:503:1::27",
-      "kavlan-3": "2001:660:4406:582:3:1::27",
-      "kavlan-4": "2001:660:4406:590:3:1::27",
-      "kavlan-5": "2001:660:4406:591:3:1::27",
-      "kavlan-6": "2001:660:4406:592:3:1::27",
-      "kavlan-7": "2001:660:4406:593:3:1::27",
-      "kavlan-8": "2001:660:4406:594:3:1::27",
-      "kavlan-9": "2001:660:4406:595:3:1::27"
+      "kavlan-1": "2001:660:4406:580:3:1:0:27",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:27",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:27",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:27",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:27",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:27",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:27",
+      "kavlan-2": "2001:660:4406:581:3:1:0:27",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:27",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:27",
+      "kavlan-3": "2001:660:4406:582:3:1:0:27",
+      "kavlan-4": "2001:660:4406:590:3:1:0:27",
+      "kavlan-5": "2001:660:4406:591:3:1:0:27",
+      "kavlan-6": "2001:660:4406:592:3:1:0:27",
+      "kavlan-7": "2001:660:4406:593:3:1:0:27",
+      "kavlan-8": "2001:660:4406:594:3:1:0:27",
+      "kavlan-9": "2001:660:4406:595:3:1:0:27"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.39",
-      "ip6": "2001:660:4406:500:3:0::27",
+      "ip6": "2001:660:4406:500:3::27",
       "kavlan": true,
       "mac": "98:03:9b:b0:c7:f6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.167",
-      "ip6": "2001:660:4406:500:3:1::27",
+      "ip6": "2001:660:4406:500:3:1:0:27",
       "kavlan": true,
       "mac": "98:03:9b:b0:c7:f7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-4.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-4.json
index 56c5b12481f07bcfbf614051424faa7e59c4cdc3..0db1cba1c16f0ef15b9b4af5f9894ab0188ac419 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-4.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-4.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::4",
-      "kavlan-11": "2001:660:4406:1a0:503:0::4",
-      "kavlan-12": "2001:660:4406:2a0:503:0::4",
-      "kavlan-13": "2001:660:4406:4a0:503:0::4",
-      "kavlan-14": "2001:660:4406:5a0:503:0::4",
-      "kavlan-16": "2001:660:4406:7a0:503:0::4",
-      "kavlan-18": "2001:660:4406:8a0:503:0::4",
-      "kavlan-2": "2001:660:4406:581:3:0::4",
-      "kavlan-20": "2001:660:4406:3a0:503:0::4",
-      "kavlan-21": "2001:660:4406:6a0:503:0::4",
-      "kavlan-3": "2001:660:4406:582:3:0::4",
-      "kavlan-4": "2001:660:4406:590:3:0::4",
-      "kavlan-5": "2001:660:4406:591:3:0::4",
-      "kavlan-6": "2001:660:4406:592:3:0::4",
-      "kavlan-7": "2001:660:4406:593:3:0::4",
-      "kavlan-8": "2001:660:4406:594:3:0::4",
-      "kavlan-9": "2001:660:4406:595:3:0::4"
+      "kavlan-1": "2001:660:4406:580:3::4",
+      "kavlan-11": "2001:660:4406:1a0:503::4",
+      "kavlan-12": "2001:660:4406:2a0:503::4",
+      "kavlan-13": "2001:660:4406:4a0:503::4",
+      "kavlan-14": "2001:660:4406:5a0:503::4",
+      "kavlan-16": "2001:660:4406:7a0:503::4",
+      "kavlan-18": "2001:660:4406:8a0:503::4",
+      "kavlan-2": "2001:660:4406:581:3::4",
+      "kavlan-20": "2001:660:4406:3a0:503::4",
+      "kavlan-21": "2001:660:4406:6a0:503::4",
+      "kavlan-3": "2001:660:4406:582:3::4",
+      "kavlan-4": "2001:660:4406:590:3::4",
+      "kavlan-5": "2001:660:4406:591:3::4",
+      "kavlan-6": "2001:660:4406:592:3::4",
+      "kavlan-7": "2001:660:4406:593:3::4",
+      "kavlan-8": "2001:660:4406:594:3::4",
+      "kavlan-9": "2001:660:4406:595:3::4"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::4",
-      "kavlan-11": "2001:660:4406:1a0:503:1::4",
-      "kavlan-12": "2001:660:4406:2a0:503:1::4",
-      "kavlan-13": "2001:660:4406:4a0:503:1::4",
-      "kavlan-14": "2001:660:4406:5a0:503:1::4",
-      "kavlan-16": "2001:660:4406:7a0:503:1::4",
-      "kavlan-18": "2001:660:4406:8a0:503:1::4",
-      "kavlan-2": "2001:660:4406:581:3:1::4",
-      "kavlan-20": "2001:660:4406:3a0:503:1::4",
-      "kavlan-21": "2001:660:4406:6a0:503:1::4",
-      "kavlan-3": "2001:660:4406:582:3:1::4",
-      "kavlan-4": "2001:660:4406:590:3:1::4",
-      "kavlan-5": "2001:660:4406:591:3:1::4",
-      "kavlan-6": "2001:660:4406:592:3:1::4",
-      "kavlan-7": "2001:660:4406:593:3:1::4",
-      "kavlan-8": "2001:660:4406:594:3:1::4",
-      "kavlan-9": "2001:660:4406:595:3:1::4"
+      "kavlan-1": "2001:660:4406:580:3:1:0:4",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:4",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:4",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:4",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:4",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:4",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:4",
+      "kavlan-2": "2001:660:4406:581:3:1:0:4",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:4",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:4",
+      "kavlan-3": "2001:660:4406:582:3:1:0:4",
+      "kavlan-4": "2001:660:4406:590:3:1:0:4",
+      "kavlan-5": "2001:660:4406:591:3:1:0:4",
+      "kavlan-6": "2001:660:4406:592:3:1:0:4",
+      "kavlan-7": "2001:660:4406:593:3:1:0:4",
+      "kavlan-8": "2001:660:4406:594:3:1:0:4",
+      "kavlan-9": "2001:660:4406:595:3:1:0:4"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.4",
-      "ip6": "2001:660:4406:500:3:0::4",
+      "ip6": "2001:660:4406:500:3::4",
       "kavlan": true,
       "mac": "98:03:9b:b0:cc:86",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.132",
-      "ip6": "2001:660:4406:500:3:1::4",
+      "ip6": "2001:660:4406:500:3:1:0:4",
       "kavlan": true,
       "mac": "98:03:9b:b0:cc:87",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-40.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-40.json
index 38af406333ad3cf14c8cbfd2a78bb482de11960c..c78919126be6176e14ea6b55364cf86d085e3c7f 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-40.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-40.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::28",
-      "kavlan-11": "2001:660:4406:1a0:503:0::28",
-      "kavlan-12": "2001:660:4406:2a0:503:0::28",
-      "kavlan-13": "2001:660:4406:4a0:503:0::28",
-      "kavlan-14": "2001:660:4406:5a0:503:0::28",
-      "kavlan-16": "2001:660:4406:7a0:503:0::28",
-      "kavlan-18": "2001:660:4406:8a0:503:0::28",
-      "kavlan-2": "2001:660:4406:581:3:0::28",
-      "kavlan-20": "2001:660:4406:3a0:503:0::28",
-      "kavlan-21": "2001:660:4406:6a0:503:0::28",
-      "kavlan-3": "2001:660:4406:582:3:0::28",
-      "kavlan-4": "2001:660:4406:590:3:0::28",
-      "kavlan-5": "2001:660:4406:591:3:0::28",
-      "kavlan-6": "2001:660:4406:592:3:0::28",
-      "kavlan-7": "2001:660:4406:593:3:0::28",
-      "kavlan-8": "2001:660:4406:594:3:0::28",
-      "kavlan-9": "2001:660:4406:595:3:0::28"
+      "kavlan-1": "2001:660:4406:580:3::28",
+      "kavlan-11": "2001:660:4406:1a0:503::28",
+      "kavlan-12": "2001:660:4406:2a0:503::28",
+      "kavlan-13": "2001:660:4406:4a0:503::28",
+      "kavlan-14": "2001:660:4406:5a0:503::28",
+      "kavlan-16": "2001:660:4406:7a0:503::28",
+      "kavlan-18": "2001:660:4406:8a0:503::28",
+      "kavlan-2": "2001:660:4406:581:3::28",
+      "kavlan-20": "2001:660:4406:3a0:503::28",
+      "kavlan-21": "2001:660:4406:6a0:503::28",
+      "kavlan-3": "2001:660:4406:582:3::28",
+      "kavlan-4": "2001:660:4406:590:3::28",
+      "kavlan-5": "2001:660:4406:591:3::28",
+      "kavlan-6": "2001:660:4406:592:3::28",
+      "kavlan-7": "2001:660:4406:593:3::28",
+      "kavlan-8": "2001:660:4406:594:3::28",
+      "kavlan-9": "2001:660:4406:595:3::28"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::28",
-      "kavlan-11": "2001:660:4406:1a0:503:1::28",
-      "kavlan-12": "2001:660:4406:2a0:503:1::28",
-      "kavlan-13": "2001:660:4406:4a0:503:1::28",
-      "kavlan-14": "2001:660:4406:5a0:503:1::28",
-      "kavlan-16": "2001:660:4406:7a0:503:1::28",
-      "kavlan-18": "2001:660:4406:8a0:503:1::28",
-      "kavlan-2": "2001:660:4406:581:3:1::28",
-      "kavlan-20": "2001:660:4406:3a0:503:1::28",
-      "kavlan-21": "2001:660:4406:6a0:503:1::28",
-      "kavlan-3": "2001:660:4406:582:3:1::28",
-      "kavlan-4": "2001:660:4406:590:3:1::28",
-      "kavlan-5": "2001:660:4406:591:3:1::28",
-      "kavlan-6": "2001:660:4406:592:3:1::28",
-      "kavlan-7": "2001:660:4406:593:3:1::28",
-      "kavlan-8": "2001:660:4406:594:3:1::28",
-      "kavlan-9": "2001:660:4406:595:3:1::28"
+      "kavlan-1": "2001:660:4406:580:3:1:0:28",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:28",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:28",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:28",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:28",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:28",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:28",
+      "kavlan-2": "2001:660:4406:581:3:1:0:28",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:28",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:28",
+      "kavlan-3": "2001:660:4406:582:3:1:0:28",
+      "kavlan-4": "2001:660:4406:590:3:1:0:28",
+      "kavlan-5": "2001:660:4406:591:3:1:0:28",
+      "kavlan-6": "2001:660:4406:592:3:1:0:28",
+      "kavlan-7": "2001:660:4406:593:3:1:0:28",
+      "kavlan-8": "2001:660:4406:594:3:1:0:28",
+      "kavlan-9": "2001:660:4406:595:3:1:0:28"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.40",
-      "ip6": "2001:660:4406:500:3:0::28",
+      "ip6": "2001:660:4406:500:3::28",
       "kavlan": true,
       "mac": "98:03:9b:b0:cc:9e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.168",
-      "ip6": "2001:660:4406:500:3:1::28",
+      "ip6": "2001:660:4406:500:3:1:0:28",
       "kavlan": true,
       "mac": "98:03:9b:b0:cc:9f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-41.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-41.json
index 2f803bcd2c426af47b1d1aa8995f525f855b26e8..74cc0832a1cdd91f7f29d481bba2ef42eb749163 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-41.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-41.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::29",
-      "kavlan-11": "2001:660:4406:1a0:503:0::29",
-      "kavlan-12": "2001:660:4406:2a0:503:0::29",
-      "kavlan-13": "2001:660:4406:4a0:503:0::29",
-      "kavlan-14": "2001:660:4406:5a0:503:0::29",
-      "kavlan-16": "2001:660:4406:7a0:503:0::29",
-      "kavlan-18": "2001:660:4406:8a0:503:0::29",
-      "kavlan-2": "2001:660:4406:581:3:0::29",
-      "kavlan-20": "2001:660:4406:3a0:503:0::29",
-      "kavlan-21": "2001:660:4406:6a0:503:0::29",
-      "kavlan-3": "2001:660:4406:582:3:0::29",
-      "kavlan-4": "2001:660:4406:590:3:0::29",
-      "kavlan-5": "2001:660:4406:591:3:0::29",
-      "kavlan-6": "2001:660:4406:592:3:0::29",
-      "kavlan-7": "2001:660:4406:593:3:0::29",
-      "kavlan-8": "2001:660:4406:594:3:0::29",
-      "kavlan-9": "2001:660:4406:595:3:0::29"
+      "kavlan-1": "2001:660:4406:580:3::29",
+      "kavlan-11": "2001:660:4406:1a0:503::29",
+      "kavlan-12": "2001:660:4406:2a0:503::29",
+      "kavlan-13": "2001:660:4406:4a0:503::29",
+      "kavlan-14": "2001:660:4406:5a0:503::29",
+      "kavlan-16": "2001:660:4406:7a0:503::29",
+      "kavlan-18": "2001:660:4406:8a0:503::29",
+      "kavlan-2": "2001:660:4406:581:3::29",
+      "kavlan-20": "2001:660:4406:3a0:503::29",
+      "kavlan-21": "2001:660:4406:6a0:503::29",
+      "kavlan-3": "2001:660:4406:582:3::29",
+      "kavlan-4": "2001:660:4406:590:3::29",
+      "kavlan-5": "2001:660:4406:591:3::29",
+      "kavlan-6": "2001:660:4406:592:3::29",
+      "kavlan-7": "2001:660:4406:593:3::29",
+      "kavlan-8": "2001:660:4406:594:3::29",
+      "kavlan-9": "2001:660:4406:595:3::29"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::29",
-      "kavlan-11": "2001:660:4406:1a0:503:1::29",
-      "kavlan-12": "2001:660:4406:2a0:503:1::29",
-      "kavlan-13": "2001:660:4406:4a0:503:1::29",
-      "kavlan-14": "2001:660:4406:5a0:503:1::29",
-      "kavlan-16": "2001:660:4406:7a0:503:1::29",
-      "kavlan-18": "2001:660:4406:8a0:503:1::29",
-      "kavlan-2": "2001:660:4406:581:3:1::29",
-      "kavlan-20": "2001:660:4406:3a0:503:1::29",
-      "kavlan-21": "2001:660:4406:6a0:503:1::29",
-      "kavlan-3": "2001:660:4406:582:3:1::29",
-      "kavlan-4": "2001:660:4406:590:3:1::29",
-      "kavlan-5": "2001:660:4406:591:3:1::29",
-      "kavlan-6": "2001:660:4406:592:3:1::29",
-      "kavlan-7": "2001:660:4406:593:3:1::29",
-      "kavlan-8": "2001:660:4406:594:3:1::29",
-      "kavlan-9": "2001:660:4406:595:3:1::29"
+      "kavlan-1": "2001:660:4406:580:3:1:0:29",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:29",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:29",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:29",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:29",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:29",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:29",
+      "kavlan-2": "2001:660:4406:581:3:1:0:29",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:29",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:29",
+      "kavlan-3": "2001:660:4406:582:3:1:0:29",
+      "kavlan-4": "2001:660:4406:590:3:1:0:29",
+      "kavlan-5": "2001:660:4406:591:3:1:0:29",
+      "kavlan-6": "2001:660:4406:592:3:1:0:29",
+      "kavlan-7": "2001:660:4406:593:3:1:0:29",
+      "kavlan-8": "2001:660:4406:594:3:1:0:29",
+      "kavlan-9": "2001:660:4406:595:3:1:0:29"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.41",
-      "ip6": "2001:660:4406:500:3:0::29",
+      "ip6": "2001:660:4406:500:3::29",
       "kavlan": true,
       "mac": "98:03:9b:b0:99:72",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.169",
-      "ip6": "2001:660:4406:500:3:1::29",
+      "ip6": "2001:660:4406:500:3:1:0:29",
       "kavlan": true,
       "mac": "98:03:9b:b0:99:73",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-42.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-42.json
index 8c828786b416dad95e6a3166231f5a2b02aea0ae..d48079b2d338439fe329b31ab7e9afb9ff994e3b 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-42.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-42.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::2a",
-      "kavlan-11": "2001:660:4406:1a0:503:0::2a",
-      "kavlan-12": "2001:660:4406:2a0:503:0::2a",
-      "kavlan-13": "2001:660:4406:4a0:503:0::2a",
-      "kavlan-14": "2001:660:4406:5a0:503:0::2a",
-      "kavlan-16": "2001:660:4406:7a0:503:0::2a",
-      "kavlan-18": "2001:660:4406:8a0:503:0::2a",
-      "kavlan-2": "2001:660:4406:581:3:0::2a",
-      "kavlan-20": "2001:660:4406:3a0:503:0::2a",
-      "kavlan-21": "2001:660:4406:6a0:503:0::2a",
-      "kavlan-3": "2001:660:4406:582:3:0::2a",
-      "kavlan-4": "2001:660:4406:590:3:0::2a",
-      "kavlan-5": "2001:660:4406:591:3:0::2a",
-      "kavlan-6": "2001:660:4406:592:3:0::2a",
-      "kavlan-7": "2001:660:4406:593:3:0::2a",
-      "kavlan-8": "2001:660:4406:594:3:0::2a",
-      "kavlan-9": "2001:660:4406:595:3:0::2a"
+      "kavlan-1": "2001:660:4406:580:3::2a",
+      "kavlan-11": "2001:660:4406:1a0:503::2a",
+      "kavlan-12": "2001:660:4406:2a0:503::2a",
+      "kavlan-13": "2001:660:4406:4a0:503::2a",
+      "kavlan-14": "2001:660:4406:5a0:503::2a",
+      "kavlan-16": "2001:660:4406:7a0:503::2a",
+      "kavlan-18": "2001:660:4406:8a0:503::2a",
+      "kavlan-2": "2001:660:4406:581:3::2a",
+      "kavlan-20": "2001:660:4406:3a0:503::2a",
+      "kavlan-21": "2001:660:4406:6a0:503::2a",
+      "kavlan-3": "2001:660:4406:582:3::2a",
+      "kavlan-4": "2001:660:4406:590:3::2a",
+      "kavlan-5": "2001:660:4406:591:3::2a",
+      "kavlan-6": "2001:660:4406:592:3::2a",
+      "kavlan-7": "2001:660:4406:593:3::2a",
+      "kavlan-8": "2001:660:4406:594:3::2a",
+      "kavlan-9": "2001:660:4406:595:3::2a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::2a",
-      "kavlan-11": "2001:660:4406:1a0:503:1::2a",
-      "kavlan-12": "2001:660:4406:2a0:503:1::2a",
-      "kavlan-13": "2001:660:4406:4a0:503:1::2a",
-      "kavlan-14": "2001:660:4406:5a0:503:1::2a",
-      "kavlan-16": "2001:660:4406:7a0:503:1::2a",
-      "kavlan-18": "2001:660:4406:8a0:503:1::2a",
-      "kavlan-2": "2001:660:4406:581:3:1::2a",
-      "kavlan-20": "2001:660:4406:3a0:503:1::2a",
-      "kavlan-21": "2001:660:4406:6a0:503:1::2a",
-      "kavlan-3": "2001:660:4406:582:3:1::2a",
-      "kavlan-4": "2001:660:4406:590:3:1::2a",
-      "kavlan-5": "2001:660:4406:591:3:1::2a",
-      "kavlan-6": "2001:660:4406:592:3:1::2a",
-      "kavlan-7": "2001:660:4406:593:3:1::2a",
-      "kavlan-8": "2001:660:4406:594:3:1::2a",
-      "kavlan-9": "2001:660:4406:595:3:1::2a"
+      "kavlan-1": "2001:660:4406:580:3:1:0:2a",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:2a",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:2a",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:2a",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:2a",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:2a",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:2a",
+      "kavlan-2": "2001:660:4406:581:3:1:0:2a",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:2a",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:2a",
+      "kavlan-3": "2001:660:4406:582:3:1:0:2a",
+      "kavlan-4": "2001:660:4406:590:3:1:0:2a",
+      "kavlan-5": "2001:660:4406:591:3:1:0:2a",
+      "kavlan-6": "2001:660:4406:592:3:1:0:2a",
+      "kavlan-7": "2001:660:4406:593:3:1:0:2a",
+      "kavlan-8": "2001:660:4406:594:3:1:0:2a",
+      "kavlan-9": "2001:660:4406:595:3:1:0:2a"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.42",
-      "ip6": "2001:660:4406:500:3:0::2a",
+      "ip6": "2001:660:4406:500:3::2a",
       "kavlan": true,
       "mac": "98:03:9b:87:b2:96",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.170",
-      "ip6": "2001:660:4406:500:3:1::2a",
+      "ip6": "2001:660:4406:500:3:1:0:2a",
       "kavlan": true,
       "mac": "98:03:9b:87:b2:97",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-43.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-43.json
index 66f74f18b50bf8b4b370c99617d09bc5514c8a01..bc3e1c4e174e99cda4f0756d46b1419503106d4a 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-43.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-43.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::2b",
-      "kavlan-11": "2001:660:4406:1a0:503:0::2b",
-      "kavlan-12": "2001:660:4406:2a0:503:0::2b",
-      "kavlan-13": "2001:660:4406:4a0:503:0::2b",
-      "kavlan-14": "2001:660:4406:5a0:503:0::2b",
-      "kavlan-16": "2001:660:4406:7a0:503:0::2b",
-      "kavlan-18": "2001:660:4406:8a0:503:0::2b",
-      "kavlan-2": "2001:660:4406:581:3:0::2b",
-      "kavlan-20": "2001:660:4406:3a0:503:0::2b",
-      "kavlan-21": "2001:660:4406:6a0:503:0::2b",
-      "kavlan-3": "2001:660:4406:582:3:0::2b",
-      "kavlan-4": "2001:660:4406:590:3:0::2b",
-      "kavlan-5": "2001:660:4406:591:3:0::2b",
-      "kavlan-6": "2001:660:4406:592:3:0::2b",
-      "kavlan-7": "2001:660:4406:593:3:0::2b",
-      "kavlan-8": "2001:660:4406:594:3:0::2b",
-      "kavlan-9": "2001:660:4406:595:3:0::2b"
+      "kavlan-1": "2001:660:4406:580:3::2b",
+      "kavlan-11": "2001:660:4406:1a0:503::2b",
+      "kavlan-12": "2001:660:4406:2a0:503::2b",
+      "kavlan-13": "2001:660:4406:4a0:503::2b",
+      "kavlan-14": "2001:660:4406:5a0:503::2b",
+      "kavlan-16": "2001:660:4406:7a0:503::2b",
+      "kavlan-18": "2001:660:4406:8a0:503::2b",
+      "kavlan-2": "2001:660:4406:581:3::2b",
+      "kavlan-20": "2001:660:4406:3a0:503::2b",
+      "kavlan-21": "2001:660:4406:6a0:503::2b",
+      "kavlan-3": "2001:660:4406:582:3::2b",
+      "kavlan-4": "2001:660:4406:590:3::2b",
+      "kavlan-5": "2001:660:4406:591:3::2b",
+      "kavlan-6": "2001:660:4406:592:3::2b",
+      "kavlan-7": "2001:660:4406:593:3::2b",
+      "kavlan-8": "2001:660:4406:594:3::2b",
+      "kavlan-9": "2001:660:4406:595:3::2b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::2b",
-      "kavlan-11": "2001:660:4406:1a0:503:1::2b",
-      "kavlan-12": "2001:660:4406:2a0:503:1::2b",
-      "kavlan-13": "2001:660:4406:4a0:503:1::2b",
-      "kavlan-14": "2001:660:4406:5a0:503:1::2b",
-      "kavlan-16": "2001:660:4406:7a0:503:1::2b",
-      "kavlan-18": "2001:660:4406:8a0:503:1::2b",
-      "kavlan-2": "2001:660:4406:581:3:1::2b",
-      "kavlan-20": "2001:660:4406:3a0:503:1::2b",
-      "kavlan-21": "2001:660:4406:6a0:503:1::2b",
-      "kavlan-3": "2001:660:4406:582:3:1::2b",
-      "kavlan-4": "2001:660:4406:590:3:1::2b",
-      "kavlan-5": "2001:660:4406:591:3:1::2b",
-      "kavlan-6": "2001:660:4406:592:3:1::2b",
-      "kavlan-7": "2001:660:4406:593:3:1::2b",
-      "kavlan-8": "2001:660:4406:594:3:1::2b",
-      "kavlan-9": "2001:660:4406:595:3:1::2b"
+      "kavlan-1": "2001:660:4406:580:3:1:0:2b",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:2b",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:2b",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:2b",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:2b",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:2b",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:2b",
+      "kavlan-2": "2001:660:4406:581:3:1:0:2b",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:2b",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:2b",
+      "kavlan-3": "2001:660:4406:582:3:1:0:2b",
+      "kavlan-4": "2001:660:4406:590:3:1:0:2b",
+      "kavlan-5": "2001:660:4406:591:3:1:0:2b",
+      "kavlan-6": "2001:660:4406:592:3:1:0:2b",
+      "kavlan-7": "2001:660:4406:593:3:1:0:2b",
+      "kavlan-8": "2001:660:4406:594:3:1:0:2b",
+      "kavlan-9": "2001:660:4406:595:3:1:0:2b"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.43",
-      "ip6": "2001:660:4406:500:3:0::2b",
+      "ip6": "2001:660:4406:500:3::2b",
       "kavlan": true,
       "mac": "98:03:9b:b0:b0:9e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.171",
-      "ip6": "2001:660:4406:500:3:1::2b",
+      "ip6": "2001:660:4406:500:3:1:0:2b",
       "kavlan": true,
       "mac": "98:03:9b:b0:b0:9f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-44.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-44.json
index 4bde350bbc42e57ec2448dcba98c7658de1759b6..030269a200e1e339aaa2f4963c9a8db983f901c2 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-44.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-44.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::2c",
-      "kavlan-11": "2001:660:4406:1a0:503:0::2c",
-      "kavlan-12": "2001:660:4406:2a0:503:0::2c",
-      "kavlan-13": "2001:660:4406:4a0:503:0::2c",
-      "kavlan-14": "2001:660:4406:5a0:503:0::2c",
-      "kavlan-16": "2001:660:4406:7a0:503:0::2c",
-      "kavlan-18": "2001:660:4406:8a0:503:0::2c",
-      "kavlan-2": "2001:660:4406:581:3:0::2c",
-      "kavlan-20": "2001:660:4406:3a0:503:0::2c",
-      "kavlan-21": "2001:660:4406:6a0:503:0::2c",
-      "kavlan-3": "2001:660:4406:582:3:0::2c",
-      "kavlan-4": "2001:660:4406:590:3:0::2c",
-      "kavlan-5": "2001:660:4406:591:3:0::2c",
-      "kavlan-6": "2001:660:4406:592:3:0::2c",
-      "kavlan-7": "2001:660:4406:593:3:0::2c",
-      "kavlan-8": "2001:660:4406:594:3:0::2c",
-      "kavlan-9": "2001:660:4406:595:3:0::2c"
+      "kavlan-1": "2001:660:4406:580:3::2c",
+      "kavlan-11": "2001:660:4406:1a0:503::2c",
+      "kavlan-12": "2001:660:4406:2a0:503::2c",
+      "kavlan-13": "2001:660:4406:4a0:503::2c",
+      "kavlan-14": "2001:660:4406:5a0:503::2c",
+      "kavlan-16": "2001:660:4406:7a0:503::2c",
+      "kavlan-18": "2001:660:4406:8a0:503::2c",
+      "kavlan-2": "2001:660:4406:581:3::2c",
+      "kavlan-20": "2001:660:4406:3a0:503::2c",
+      "kavlan-21": "2001:660:4406:6a0:503::2c",
+      "kavlan-3": "2001:660:4406:582:3::2c",
+      "kavlan-4": "2001:660:4406:590:3::2c",
+      "kavlan-5": "2001:660:4406:591:3::2c",
+      "kavlan-6": "2001:660:4406:592:3::2c",
+      "kavlan-7": "2001:660:4406:593:3::2c",
+      "kavlan-8": "2001:660:4406:594:3::2c",
+      "kavlan-9": "2001:660:4406:595:3::2c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::2c",
-      "kavlan-11": "2001:660:4406:1a0:503:1::2c",
-      "kavlan-12": "2001:660:4406:2a0:503:1::2c",
-      "kavlan-13": "2001:660:4406:4a0:503:1::2c",
-      "kavlan-14": "2001:660:4406:5a0:503:1::2c",
-      "kavlan-16": "2001:660:4406:7a0:503:1::2c",
-      "kavlan-18": "2001:660:4406:8a0:503:1::2c",
-      "kavlan-2": "2001:660:4406:581:3:1::2c",
-      "kavlan-20": "2001:660:4406:3a0:503:1::2c",
-      "kavlan-21": "2001:660:4406:6a0:503:1::2c",
-      "kavlan-3": "2001:660:4406:582:3:1::2c",
-      "kavlan-4": "2001:660:4406:590:3:1::2c",
-      "kavlan-5": "2001:660:4406:591:3:1::2c",
-      "kavlan-6": "2001:660:4406:592:3:1::2c",
-      "kavlan-7": "2001:660:4406:593:3:1::2c",
-      "kavlan-8": "2001:660:4406:594:3:1::2c",
-      "kavlan-9": "2001:660:4406:595:3:1::2c"
+      "kavlan-1": "2001:660:4406:580:3:1:0:2c",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:2c",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:2c",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:2c",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:2c",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:2c",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:2c",
+      "kavlan-2": "2001:660:4406:581:3:1:0:2c",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:2c",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:2c",
+      "kavlan-3": "2001:660:4406:582:3:1:0:2c",
+      "kavlan-4": "2001:660:4406:590:3:1:0:2c",
+      "kavlan-5": "2001:660:4406:591:3:1:0:2c",
+      "kavlan-6": "2001:660:4406:592:3:1:0:2c",
+      "kavlan-7": "2001:660:4406:593:3:1:0:2c",
+      "kavlan-8": "2001:660:4406:594:3:1:0:2c",
+      "kavlan-9": "2001:660:4406:595:3:1:0:2c"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.44",
-      "ip6": "2001:660:4406:500:3:0::2c",
+      "ip6": "2001:660:4406:500:3::2c",
       "kavlan": true,
       "mac": "98:03:9b:b0:ac:d6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.172",
-      "ip6": "2001:660:4406:500:3:1::2c",
+      "ip6": "2001:660:4406:500:3:1:0:2c",
       "kavlan": true,
       "mac": "98:03:9b:b0:ac:d7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-45.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-45.json
index 1fe28f87259a1b674ca1ac638c968f2a9b456b43..6801cab6307ed44a6ff6e223935b5a90c9391ccd 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-45.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-45.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::2d",
-      "kavlan-11": "2001:660:4406:1a0:503:0::2d",
-      "kavlan-12": "2001:660:4406:2a0:503:0::2d",
-      "kavlan-13": "2001:660:4406:4a0:503:0::2d",
-      "kavlan-14": "2001:660:4406:5a0:503:0::2d",
-      "kavlan-16": "2001:660:4406:7a0:503:0::2d",
-      "kavlan-18": "2001:660:4406:8a0:503:0::2d",
-      "kavlan-2": "2001:660:4406:581:3:0::2d",
-      "kavlan-20": "2001:660:4406:3a0:503:0::2d",
-      "kavlan-21": "2001:660:4406:6a0:503:0::2d",
-      "kavlan-3": "2001:660:4406:582:3:0::2d",
-      "kavlan-4": "2001:660:4406:590:3:0::2d",
-      "kavlan-5": "2001:660:4406:591:3:0::2d",
-      "kavlan-6": "2001:660:4406:592:3:0::2d",
-      "kavlan-7": "2001:660:4406:593:3:0::2d",
-      "kavlan-8": "2001:660:4406:594:3:0::2d",
-      "kavlan-9": "2001:660:4406:595:3:0::2d"
+      "kavlan-1": "2001:660:4406:580:3::2d",
+      "kavlan-11": "2001:660:4406:1a0:503::2d",
+      "kavlan-12": "2001:660:4406:2a0:503::2d",
+      "kavlan-13": "2001:660:4406:4a0:503::2d",
+      "kavlan-14": "2001:660:4406:5a0:503::2d",
+      "kavlan-16": "2001:660:4406:7a0:503::2d",
+      "kavlan-18": "2001:660:4406:8a0:503::2d",
+      "kavlan-2": "2001:660:4406:581:3::2d",
+      "kavlan-20": "2001:660:4406:3a0:503::2d",
+      "kavlan-21": "2001:660:4406:6a0:503::2d",
+      "kavlan-3": "2001:660:4406:582:3::2d",
+      "kavlan-4": "2001:660:4406:590:3::2d",
+      "kavlan-5": "2001:660:4406:591:3::2d",
+      "kavlan-6": "2001:660:4406:592:3::2d",
+      "kavlan-7": "2001:660:4406:593:3::2d",
+      "kavlan-8": "2001:660:4406:594:3::2d",
+      "kavlan-9": "2001:660:4406:595:3::2d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::2d",
-      "kavlan-11": "2001:660:4406:1a0:503:1::2d",
-      "kavlan-12": "2001:660:4406:2a0:503:1::2d",
-      "kavlan-13": "2001:660:4406:4a0:503:1::2d",
-      "kavlan-14": "2001:660:4406:5a0:503:1::2d",
-      "kavlan-16": "2001:660:4406:7a0:503:1::2d",
-      "kavlan-18": "2001:660:4406:8a0:503:1::2d",
-      "kavlan-2": "2001:660:4406:581:3:1::2d",
-      "kavlan-20": "2001:660:4406:3a0:503:1::2d",
-      "kavlan-21": "2001:660:4406:6a0:503:1::2d",
-      "kavlan-3": "2001:660:4406:582:3:1::2d",
-      "kavlan-4": "2001:660:4406:590:3:1::2d",
-      "kavlan-5": "2001:660:4406:591:3:1::2d",
-      "kavlan-6": "2001:660:4406:592:3:1::2d",
-      "kavlan-7": "2001:660:4406:593:3:1::2d",
-      "kavlan-8": "2001:660:4406:594:3:1::2d",
-      "kavlan-9": "2001:660:4406:595:3:1::2d"
+      "kavlan-1": "2001:660:4406:580:3:1:0:2d",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:2d",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:2d",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:2d",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:2d",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:2d",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:2d",
+      "kavlan-2": "2001:660:4406:581:3:1:0:2d",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:2d",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:2d",
+      "kavlan-3": "2001:660:4406:582:3:1:0:2d",
+      "kavlan-4": "2001:660:4406:590:3:1:0:2d",
+      "kavlan-5": "2001:660:4406:591:3:1:0:2d",
+      "kavlan-6": "2001:660:4406:592:3:1:0:2d",
+      "kavlan-7": "2001:660:4406:593:3:1:0:2d",
+      "kavlan-8": "2001:660:4406:594:3:1:0:2d",
+      "kavlan-9": "2001:660:4406:595:3:1:0:2d"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.45",
-      "ip6": "2001:660:4406:500:3:0::2d",
+      "ip6": "2001:660:4406:500:3::2d",
       "kavlan": true,
       "mac": "98:03:9b:b0:bf:f6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.173",
-      "ip6": "2001:660:4406:500:3:1::2d",
+      "ip6": "2001:660:4406:500:3:1:0:2d",
       "kavlan": true,
       "mac": "98:03:9b:b0:bf:f7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-46.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-46.json
index a1f03c2735e66b1985270883d84392c88f1188dc..01f0a33deb777af539202d0d21e4815ab5607247 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-46.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-46.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::2e",
-      "kavlan-11": "2001:660:4406:1a0:503:0::2e",
-      "kavlan-12": "2001:660:4406:2a0:503:0::2e",
-      "kavlan-13": "2001:660:4406:4a0:503:0::2e",
-      "kavlan-14": "2001:660:4406:5a0:503:0::2e",
-      "kavlan-16": "2001:660:4406:7a0:503:0::2e",
-      "kavlan-18": "2001:660:4406:8a0:503:0::2e",
-      "kavlan-2": "2001:660:4406:581:3:0::2e",
-      "kavlan-20": "2001:660:4406:3a0:503:0::2e",
-      "kavlan-21": "2001:660:4406:6a0:503:0::2e",
-      "kavlan-3": "2001:660:4406:582:3:0::2e",
-      "kavlan-4": "2001:660:4406:590:3:0::2e",
-      "kavlan-5": "2001:660:4406:591:3:0::2e",
-      "kavlan-6": "2001:660:4406:592:3:0::2e",
-      "kavlan-7": "2001:660:4406:593:3:0::2e",
-      "kavlan-8": "2001:660:4406:594:3:0::2e",
-      "kavlan-9": "2001:660:4406:595:3:0::2e"
+      "kavlan-1": "2001:660:4406:580:3::2e",
+      "kavlan-11": "2001:660:4406:1a0:503::2e",
+      "kavlan-12": "2001:660:4406:2a0:503::2e",
+      "kavlan-13": "2001:660:4406:4a0:503::2e",
+      "kavlan-14": "2001:660:4406:5a0:503::2e",
+      "kavlan-16": "2001:660:4406:7a0:503::2e",
+      "kavlan-18": "2001:660:4406:8a0:503::2e",
+      "kavlan-2": "2001:660:4406:581:3::2e",
+      "kavlan-20": "2001:660:4406:3a0:503::2e",
+      "kavlan-21": "2001:660:4406:6a0:503::2e",
+      "kavlan-3": "2001:660:4406:582:3::2e",
+      "kavlan-4": "2001:660:4406:590:3::2e",
+      "kavlan-5": "2001:660:4406:591:3::2e",
+      "kavlan-6": "2001:660:4406:592:3::2e",
+      "kavlan-7": "2001:660:4406:593:3::2e",
+      "kavlan-8": "2001:660:4406:594:3::2e",
+      "kavlan-9": "2001:660:4406:595:3::2e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::2e",
-      "kavlan-11": "2001:660:4406:1a0:503:1::2e",
-      "kavlan-12": "2001:660:4406:2a0:503:1::2e",
-      "kavlan-13": "2001:660:4406:4a0:503:1::2e",
-      "kavlan-14": "2001:660:4406:5a0:503:1::2e",
-      "kavlan-16": "2001:660:4406:7a0:503:1::2e",
-      "kavlan-18": "2001:660:4406:8a0:503:1::2e",
-      "kavlan-2": "2001:660:4406:581:3:1::2e",
-      "kavlan-20": "2001:660:4406:3a0:503:1::2e",
-      "kavlan-21": "2001:660:4406:6a0:503:1::2e",
-      "kavlan-3": "2001:660:4406:582:3:1::2e",
-      "kavlan-4": "2001:660:4406:590:3:1::2e",
-      "kavlan-5": "2001:660:4406:591:3:1::2e",
-      "kavlan-6": "2001:660:4406:592:3:1::2e",
-      "kavlan-7": "2001:660:4406:593:3:1::2e",
-      "kavlan-8": "2001:660:4406:594:3:1::2e",
-      "kavlan-9": "2001:660:4406:595:3:1::2e"
+      "kavlan-1": "2001:660:4406:580:3:1:0:2e",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:2e",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:2e",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:2e",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:2e",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:2e",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:2e",
+      "kavlan-2": "2001:660:4406:581:3:1:0:2e",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:2e",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:2e",
+      "kavlan-3": "2001:660:4406:582:3:1:0:2e",
+      "kavlan-4": "2001:660:4406:590:3:1:0:2e",
+      "kavlan-5": "2001:660:4406:591:3:1:0:2e",
+      "kavlan-6": "2001:660:4406:592:3:1:0:2e",
+      "kavlan-7": "2001:660:4406:593:3:1:0:2e",
+      "kavlan-8": "2001:660:4406:594:3:1:0:2e",
+      "kavlan-9": "2001:660:4406:595:3:1:0:2e"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.46",
-      "ip6": "2001:660:4406:500:3:0::2e",
+      "ip6": "2001:660:4406:500:3::2e",
       "kavlan": true,
       "mac": "98:03:9b:b0:c0:1e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.174",
-      "ip6": "2001:660:4406:500:3:1::2e",
+      "ip6": "2001:660:4406:500:3:1:0:2e",
       "kavlan": true,
       "mac": "98:03:9b:b0:c0:1f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-47.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-47.json
index fe1d78f6593e141935d93b2ec1f66e4140e3cd31..f2b762b8058222db7ade59587b5e22c6a43af7a9 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-47.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-47.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::2f",
-      "kavlan-11": "2001:660:4406:1a0:503:0::2f",
-      "kavlan-12": "2001:660:4406:2a0:503:0::2f",
-      "kavlan-13": "2001:660:4406:4a0:503:0::2f",
-      "kavlan-14": "2001:660:4406:5a0:503:0::2f",
-      "kavlan-16": "2001:660:4406:7a0:503:0::2f",
-      "kavlan-18": "2001:660:4406:8a0:503:0::2f",
-      "kavlan-2": "2001:660:4406:581:3:0::2f",
-      "kavlan-20": "2001:660:4406:3a0:503:0::2f",
-      "kavlan-21": "2001:660:4406:6a0:503:0::2f",
-      "kavlan-3": "2001:660:4406:582:3:0::2f",
-      "kavlan-4": "2001:660:4406:590:3:0::2f",
-      "kavlan-5": "2001:660:4406:591:3:0::2f",
-      "kavlan-6": "2001:660:4406:592:3:0::2f",
-      "kavlan-7": "2001:660:4406:593:3:0::2f",
-      "kavlan-8": "2001:660:4406:594:3:0::2f",
-      "kavlan-9": "2001:660:4406:595:3:0::2f"
+      "kavlan-1": "2001:660:4406:580:3::2f",
+      "kavlan-11": "2001:660:4406:1a0:503::2f",
+      "kavlan-12": "2001:660:4406:2a0:503::2f",
+      "kavlan-13": "2001:660:4406:4a0:503::2f",
+      "kavlan-14": "2001:660:4406:5a0:503::2f",
+      "kavlan-16": "2001:660:4406:7a0:503::2f",
+      "kavlan-18": "2001:660:4406:8a0:503::2f",
+      "kavlan-2": "2001:660:4406:581:3::2f",
+      "kavlan-20": "2001:660:4406:3a0:503::2f",
+      "kavlan-21": "2001:660:4406:6a0:503::2f",
+      "kavlan-3": "2001:660:4406:582:3::2f",
+      "kavlan-4": "2001:660:4406:590:3::2f",
+      "kavlan-5": "2001:660:4406:591:3::2f",
+      "kavlan-6": "2001:660:4406:592:3::2f",
+      "kavlan-7": "2001:660:4406:593:3::2f",
+      "kavlan-8": "2001:660:4406:594:3::2f",
+      "kavlan-9": "2001:660:4406:595:3::2f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::2f",
-      "kavlan-11": "2001:660:4406:1a0:503:1::2f",
-      "kavlan-12": "2001:660:4406:2a0:503:1::2f",
-      "kavlan-13": "2001:660:4406:4a0:503:1::2f",
-      "kavlan-14": "2001:660:4406:5a0:503:1::2f",
-      "kavlan-16": "2001:660:4406:7a0:503:1::2f",
-      "kavlan-18": "2001:660:4406:8a0:503:1::2f",
-      "kavlan-2": "2001:660:4406:581:3:1::2f",
-      "kavlan-20": "2001:660:4406:3a0:503:1::2f",
-      "kavlan-21": "2001:660:4406:6a0:503:1::2f",
-      "kavlan-3": "2001:660:4406:582:3:1::2f",
-      "kavlan-4": "2001:660:4406:590:3:1::2f",
-      "kavlan-5": "2001:660:4406:591:3:1::2f",
-      "kavlan-6": "2001:660:4406:592:3:1::2f",
-      "kavlan-7": "2001:660:4406:593:3:1::2f",
-      "kavlan-8": "2001:660:4406:594:3:1::2f",
-      "kavlan-9": "2001:660:4406:595:3:1::2f"
+      "kavlan-1": "2001:660:4406:580:3:1:0:2f",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:2f",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:2f",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:2f",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:2f",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:2f",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:2f",
+      "kavlan-2": "2001:660:4406:581:3:1:0:2f",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:2f",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:2f",
+      "kavlan-3": "2001:660:4406:582:3:1:0:2f",
+      "kavlan-4": "2001:660:4406:590:3:1:0:2f",
+      "kavlan-5": "2001:660:4406:591:3:1:0:2f",
+      "kavlan-6": "2001:660:4406:592:3:1:0:2f",
+      "kavlan-7": "2001:660:4406:593:3:1:0:2f",
+      "kavlan-8": "2001:660:4406:594:3:1:0:2f",
+      "kavlan-9": "2001:660:4406:595:3:1:0:2f"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.47",
-      "ip6": "2001:660:4406:500:3:0::2f",
+      "ip6": "2001:660:4406:500:3::2f",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:06",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.175",
-      "ip6": "2001:660:4406:500:3:1::2f",
+      "ip6": "2001:660:4406:500:3:1:0:2f",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:07",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-48.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-48.json
index 1e96459ef00667c20c938b23eea1a0a4fe0f238f..2901ef559c8a34a2603b07831965ed2c7ee56563 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-48.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-48.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::30",
-      "kavlan-11": "2001:660:4406:1a0:503:0::30",
-      "kavlan-12": "2001:660:4406:2a0:503:0::30",
-      "kavlan-13": "2001:660:4406:4a0:503:0::30",
-      "kavlan-14": "2001:660:4406:5a0:503:0::30",
-      "kavlan-16": "2001:660:4406:7a0:503:0::30",
-      "kavlan-18": "2001:660:4406:8a0:503:0::30",
-      "kavlan-2": "2001:660:4406:581:3:0::30",
-      "kavlan-20": "2001:660:4406:3a0:503:0::30",
-      "kavlan-21": "2001:660:4406:6a0:503:0::30",
-      "kavlan-3": "2001:660:4406:582:3:0::30",
-      "kavlan-4": "2001:660:4406:590:3:0::30",
-      "kavlan-5": "2001:660:4406:591:3:0::30",
-      "kavlan-6": "2001:660:4406:592:3:0::30",
-      "kavlan-7": "2001:660:4406:593:3:0::30",
-      "kavlan-8": "2001:660:4406:594:3:0::30",
-      "kavlan-9": "2001:660:4406:595:3:0::30"
+      "kavlan-1": "2001:660:4406:580:3::30",
+      "kavlan-11": "2001:660:4406:1a0:503::30",
+      "kavlan-12": "2001:660:4406:2a0:503::30",
+      "kavlan-13": "2001:660:4406:4a0:503::30",
+      "kavlan-14": "2001:660:4406:5a0:503::30",
+      "kavlan-16": "2001:660:4406:7a0:503::30",
+      "kavlan-18": "2001:660:4406:8a0:503::30",
+      "kavlan-2": "2001:660:4406:581:3::30",
+      "kavlan-20": "2001:660:4406:3a0:503::30",
+      "kavlan-21": "2001:660:4406:6a0:503::30",
+      "kavlan-3": "2001:660:4406:582:3::30",
+      "kavlan-4": "2001:660:4406:590:3::30",
+      "kavlan-5": "2001:660:4406:591:3::30",
+      "kavlan-6": "2001:660:4406:592:3::30",
+      "kavlan-7": "2001:660:4406:593:3::30",
+      "kavlan-8": "2001:660:4406:594:3::30",
+      "kavlan-9": "2001:660:4406:595:3::30"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::30",
-      "kavlan-11": "2001:660:4406:1a0:503:1::30",
-      "kavlan-12": "2001:660:4406:2a0:503:1::30",
-      "kavlan-13": "2001:660:4406:4a0:503:1::30",
-      "kavlan-14": "2001:660:4406:5a0:503:1::30",
-      "kavlan-16": "2001:660:4406:7a0:503:1::30",
-      "kavlan-18": "2001:660:4406:8a0:503:1::30",
-      "kavlan-2": "2001:660:4406:581:3:1::30",
-      "kavlan-20": "2001:660:4406:3a0:503:1::30",
-      "kavlan-21": "2001:660:4406:6a0:503:1::30",
-      "kavlan-3": "2001:660:4406:582:3:1::30",
-      "kavlan-4": "2001:660:4406:590:3:1::30",
-      "kavlan-5": "2001:660:4406:591:3:1::30",
-      "kavlan-6": "2001:660:4406:592:3:1::30",
-      "kavlan-7": "2001:660:4406:593:3:1::30",
-      "kavlan-8": "2001:660:4406:594:3:1::30",
-      "kavlan-9": "2001:660:4406:595:3:1::30"
+      "kavlan-1": "2001:660:4406:580:3:1:0:30",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:30",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:30",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:30",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:30",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:30",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:30",
+      "kavlan-2": "2001:660:4406:581:3:1:0:30",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:30",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:30",
+      "kavlan-3": "2001:660:4406:582:3:1:0:30",
+      "kavlan-4": "2001:660:4406:590:3:1:0:30",
+      "kavlan-5": "2001:660:4406:591:3:1:0:30",
+      "kavlan-6": "2001:660:4406:592:3:1:0:30",
+      "kavlan-7": "2001:660:4406:593:3:1:0:30",
+      "kavlan-8": "2001:660:4406:594:3:1:0:30",
+      "kavlan-9": "2001:660:4406:595:3:1:0:30"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.48",
-      "ip6": "2001:660:4406:500:3:0::30",
+      "ip6": "2001:660:4406:500:3::30",
       "kavlan": true,
       "mac": "98:03:9b:b0:c9:c6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.176",
-      "ip6": "2001:660:4406:500:3:1::30",
+      "ip6": "2001:660:4406:500:3:1:0:30",
       "kavlan": true,
       "mac": "98:03:9b:b0:c9:c7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-49.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-49.json
index 0a29edc52eac5167da7a789ac4c20f2ee83bb876..edda15dc52b1ab7f96f6f9bce012ae9014b6da4f 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-49.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-49.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::31",
-      "kavlan-11": "2001:660:4406:1a0:503:0::31",
-      "kavlan-12": "2001:660:4406:2a0:503:0::31",
-      "kavlan-13": "2001:660:4406:4a0:503:0::31",
-      "kavlan-14": "2001:660:4406:5a0:503:0::31",
-      "kavlan-16": "2001:660:4406:7a0:503:0::31",
-      "kavlan-18": "2001:660:4406:8a0:503:0::31",
-      "kavlan-2": "2001:660:4406:581:3:0::31",
-      "kavlan-20": "2001:660:4406:3a0:503:0::31",
-      "kavlan-21": "2001:660:4406:6a0:503:0::31",
-      "kavlan-3": "2001:660:4406:582:3:0::31",
-      "kavlan-4": "2001:660:4406:590:3:0::31",
-      "kavlan-5": "2001:660:4406:591:3:0::31",
-      "kavlan-6": "2001:660:4406:592:3:0::31",
-      "kavlan-7": "2001:660:4406:593:3:0::31",
-      "kavlan-8": "2001:660:4406:594:3:0::31",
-      "kavlan-9": "2001:660:4406:595:3:0::31"
+      "kavlan-1": "2001:660:4406:580:3::31",
+      "kavlan-11": "2001:660:4406:1a0:503::31",
+      "kavlan-12": "2001:660:4406:2a0:503::31",
+      "kavlan-13": "2001:660:4406:4a0:503::31",
+      "kavlan-14": "2001:660:4406:5a0:503::31",
+      "kavlan-16": "2001:660:4406:7a0:503::31",
+      "kavlan-18": "2001:660:4406:8a0:503::31",
+      "kavlan-2": "2001:660:4406:581:3::31",
+      "kavlan-20": "2001:660:4406:3a0:503::31",
+      "kavlan-21": "2001:660:4406:6a0:503::31",
+      "kavlan-3": "2001:660:4406:582:3::31",
+      "kavlan-4": "2001:660:4406:590:3::31",
+      "kavlan-5": "2001:660:4406:591:3::31",
+      "kavlan-6": "2001:660:4406:592:3::31",
+      "kavlan-7": "2001:660:4406:593:3::31",
+      "kavlan-8": "2001:660:4406:594:3::31",
+      "kavlan-9": "2001:660:4406:595:3::31"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::31",
-      "kavlan-11": "2001:660:4406:1a0:503:1::31",
-      "kavlan-12": "2001:660:4406:2a0:503:1::31",
-      "kavlan-13": "2001:660:4406:4a0:503:1::31",
-      "kavlan-14": "2001:660:4406:5a0:503:1::31",
-      "kavlan-16": "2001:660:4406:7a0:503:1::31",
-      "kavlan-18": "2001:660:4406:8a0:503:1::31",
-      "kavlan-2": "2001:660:4406:581:3:1::31",
-      "kavlan-20": "2001:660:4406:3a0:503:1::31",
-      "kavlan-21": "2001:660:4406:6a0:503:1::31",
-      "kavlan-3": "2001:660:4406:582:3:1::31",
-      "kavlan-4": "2001:660:4406:590:3:1::31",
-      "kavlan-5": "2001:660:4406:591:3:1::31",
-      "kavlan-6": "2001:660:4406:592:3:1::31",
-      "kavlan-7": "2001:660:4406:593:3:1::31",
-      "kavlan-8": "2001:660:4406:594:3:1::31",
-      "kavlan-9": "2001:660:4406:595:3:1::31"
+      "kavlan-1": "2001:660:4406:580:3:1:0:31",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:31",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:31",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:31",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:31",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:31",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:31",
+      "kavlan-2": "2001:660:4406:581:3:1:0:31",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:31",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:31",
+      "kavlan-3": "2001:660:4406:582:3:1:0:31",
+      "kavlan-4": "2001:660:4406:590:3:1:0:31",
+      "kavlan-5": "2001:660:4406:591:3:1:0:31",
+      "kavlan-6": "2001:660:4406:592:3:1:0:31",
+      "kavlan-7": "2001:660:4406:593:3:1:0:31",
+      "kavlan-8": "2001:660:4406:594:3:1:0:31",
+      "kavlan-9": "2001:660:4406:595:3:1:0:31"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.49",
-      "ip6": "2001:660:4406:500:3:0::31",
+      "ip6": "2001:660:4406:500:3::31",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:6e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.177",
-      "ip6": "2001:660:4406:500:3:1::31",
+      "ip6": "2001:660:4406:500:3:1:0:31",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:6f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-5.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-5.json
index a788d6a1bd2923834c94f90b188509e3c3489e22..7094293644802dabf179bafe3ad5d8eb7b29725b 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-5.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-5.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::5",
-      "kavlan-11": "2001:660:4406:1a0:503:0::5",
-      "kavlan-12": "2001:660:4406:2a0:503:0::5",
-      "kavlan-13": "2001:660:4406:4a0:503:0::5",
-      "kavlan-14": "2001:660:4406:5a0:503:0::5",
-      "kavlan-16": "2001:660:4406:7a0:503:0::5",
-      "kavlan-18": "2001:660:4406:8a0:503:0::5",
-      "kavlan-2": "2001:660:4406:581:3:0::5",
-      "kavlan-20": "2001:660:4406:3a0:503:0::5",
-      "kavlan-21": "2001:660:4406:6a0:503:0::5",
-      "kavlan-3": "2001:660:4406:582:3:0::5",
-      "kavlan-4": "2001:660:4406:590:3:0::5",
-      "kavlan-5": "2001:660:4406:591:3:0::5",
-      "kavlan-6": "2001:660:4406:592:3:0::5",
-      "kavlan-7": "2001:660:4406:593:3:0::5",
-      "kavlan-8": "2001:660:4406:594:3:0::5",
-      "kavlan-9": "2001:660:4406:595:3:0::5"
+      "kavlan-1": "2001:660:4406:580:3::5",
+      "kavlan-11": "2001:660:4406:1a0:503::5",
+      "kavlan-12": "2001:660:4406:2a0:503::5",
+      "kavlan-13": "2001:660:4406:4a0:503::5",
+      "kavlan-14": "2001:660:4406:5a0:503::5",
+      "kavlan-16": "2001:660:4406:7a0:503::5",
+      "kavlan-18": "2001:660:4406:8a0:503::5",
+      "kavlan-2": "2001:660:4406:581:3::5",
+      "kavlan-20": "2001:660:4406:3a0:503::5",
+      "kavlan-21": "2001:660:4406:6a0:503::5",
+      "kavlan-3": "2001:660:4406:582:3::5",
+      "kavlan-4": "2001:660:4406:590:3::5",
+      "kavlan-5": "2001:660:4406:591:3::5",
+      "kavlan-6": "2001:660:4406:592:3::5",
+      "kavlan-7": "2001:660:4406:593:3::5",
+      "kavlan-8": "2001:660:4406:594:3::5",
+      "kavlan-9": "2001:660:4406:595:3::5"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::5",
-      "kavlan-11": "2001:660:4406:1a0:503:1::5",
-      "kavlan-12": "2001:660:4406:2a0:503:1::5",
-      "kavlan-13": "2001:660:4406:4a0:503:1::5",
-      "kavlan-14": "2001:660:4406:5a0:503:1::5",
-      "kavlan-16": "2001:660:4406:7a0:503:1::5",
-      "kavlan-18": "2001:660:4406:8a0:503:1::5",
-      "kavlan-2": "2001:660:4406:581:3:1::5",
-      "kavlan-20": "2001:660:4406:3a0:503:1::5",
-      "kavlan-21": "2001:660:4406:6a0:503:1::5",
-      "kavlan-3": "2001:660:4406:582:3:1::5",
-      "kavlan-4": "2001:660:4406:590:3:1::5",
-      "kavlan-5": "2001:660:4406:591:3:1::5",
-      "kavlan-6": "2001:660:4406:592:3:1::5",
-      "kavlan-7": "2001:660:4406:593:3:1::5",
-      "kavlan-8": "2001:660:4406:594:3:1::5",
-      "kavlan-9": "2001:660:4406:595:3:1::5"
+      "kavlan-1": "2001:660:4406:580:3:1:0:5",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:5",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:5",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:5",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:5",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:5",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:5",
+      "kavlan-2": "2001:660:4406:581:3:1:0:5",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:5",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:5",
+      "kavlan-3": "2001:660:4406:582:3:1:0:5",
+      "kavlan-4": "2001:660:4406:590:3:1:0:5",
+      "kavlan-5": "2001:660:4406:591:3:1:0:5",
+      "kavlan-6": "2001:660:4406:592:3:1:0:5",
+      "kavlan-7": "2001:660:4406:593:3:1:0:5",
+      "kavlan-8": "2001:660:4406:594:3:1:0:5",
+      "kavlan-9": "2001:660:4406:595:3:1:0:5"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.5",
-      "ip6": "2001:660:4406:500:3:0::5",
+      "ip6": "2001:660:4406:500:3::5",
       "kavlan": true,
       "mac": "98:03:9b:b0:d2:e6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.133",
-      "ip6": "2001:660:4406:500:3:1::5",
+      "ip6": "2001:660:4406:500:3:1:0:5",
       "kavlan": true,
       "mac": "98:03:9b:b0:d2:e7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-50.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-50.json
index 450e2f66b92d4734ddb44e7e2c2f837c3284f151..1b43e88c602b09cbf27507fd7be269eb9ba9ae12 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-50.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-50.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::32",
-      "kavlan-11": "2001:660:4406:1a0:503:0::32",
-      "kavlan-12": "2001:660:4406:2a0:503:0::32",
-      "kavlan-13": "2001:660:4406:4a0:503:0::32",
-      "kavlan-14": "2001:660:4406:5a0:503:0::32",
-      "kavlan-16": "2001:660:4406:7a0:503:0::32",
-      "kavlan-18": "2001:660:4406:8a0:503:0::32",
-      "kavlan-2": "2001:660:4406:581:3:0::32",
-      "kavlan-20": "2001:660:4406:3a0:503:0::32",
-      "kavlan-21": "2001:660:4406:6a0:503:0::32",
-      "kavlan-3": "2001:660:4406:582:3:0::32",
-      "kavlan-4": "2001:660:4406:590:3:0::32",
-      "kavlan-5": "2001:660:4406:591:3:0::32",
-      "kavlan-6": "2001:660:4406:592:3:0::32",
-      "kavlan-7": "2001:660:4406:593:3:0::32",
-      "kavlan-8": "2001:660:4406:594:3:0::32",
-      "kavlan-9": "2001:660:4406:595:3:0::32"
+      "kavlan-1": "2001:660:4406:580:3::32",
+      "kavlan-11": "2001:660:4406:1a0:503::32",
+      "kavlan-12": "2001:660:4406:2a0:503::32",
+      "kavlan-13": "2001:660:4406:4a0:503::32",
+      "kavlan-14": "2001:660:4406:5a0:503::32",
+      "kavlan-16": "2001:660:4406:7a0:503::32",
+      "kavlan-18": "2001:660:4406:8a0:503::32",
+      "kavlan-2": "2001:660:4406:581:3::32",
+      "kavlan-20": "2001:660:4406:3a0:503::32",
+      "kavlan-21": "2001:660:4406:6a0:503::32",
+      "kavlan-3": "2001:660:4406:582:3::32",
+      "kavlan-4": "2001:660:4406:590:3::32",
+      "kavlan-5": "2001:660:4406:591:3::32",
+      "kavlan-6": "2001:660:4406:592:3::32",
+      "kavlan-7": "2001:660:4406:593:3::32",
+      "kavlan-8": "2001:660:4406:594:3::32",
+      "kavlan-9": "2001:660:4406:595:3::32"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::32",
-      "kavlan-11": "2001:660:4406:1a0:503:1::32",
-      "kavlan-12": "2001:660:4406:2a0:503:1::32",
-      "kavlan-13": "2001:660:4406:4a0:503:1::32",
-      "kavlan-14": "2001:660:4406:5a0:503:1::32",
-      "kavlan-16": "2001:660:4406:7a0:503:1::32",
-      "kavlan-18": "2001:660:4406:8a0:503:1::32",
-      "kavlan-2": "2001:660:4406:581:3:1::32",
-      "kavlan-20": "2001:660:4406:3a0:503:1::32",
-      "kavlan-21": "2001:660:4406:6a0:503:1::32",
-      "kavlan-3": "2001:660:4406:582:3:1::32",
-      "kavlan-4": "2001:660:4406:590:3:1::32",
-      "kavlan-5": "2001:660:4406:591:3:1::32",
-      "kavlan-6": "2001:660:4406:592:3:1::32",
-      "kavlan-7": "2001:660:4406:593:3:1::32",
-      "kavlan-8": "2001:660:4406:594:3:1::32",
-      "kavlan-9": "2001:660:4406:595:3:1::32"
+      "kavlan-1": "2001:660:4406:580:3:1:0:32",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:32",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:32",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:32",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:32",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:32",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:32",
+      "kavlan-2": "2001:660:4406:581:3:1:0:32",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:32",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:32",
+      "kavlan-3": "2001:660:4406:582:3:1:0:32",
+      "kavlan-4": "2001:660:4406:590:3:1:0:32",
+      "kavlan-5": "2001:660:4406:591:3:1:0:32",
+      "kavlan-6": "2001:660:4406:592:3:1:0:32",
+      "kavlan-7": "2001:660:4406:593:3:1:0:32",
+      "kavlan-8": "2001:660:4406:594:3:1:0:32",
+      "kavlan-9": "2001:660:4406:595:3:1:0:32"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.50",
-      "ip6": "2001:660:4406:500:3:0::32",
+      "ip6": "2001:660:4406:500:3::32",
       "kavlan": true,
       "mac": "98:03:9b:b0:a3:a6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.178",
-      "ip6": "2001:660:4406:500:3:1::32",
+      "ip6": "2001:660:4406:500:3:1:0:32",
       "kavlan": true,
       "mac": "98:03:9b:b0:a3:a7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-51.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-51.json
index 210400c8809d082abab8734d11a0702d4fc7f215..8a1e9497a9eb1b7096b031c186f04d19c857308f 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-51.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-51.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::33",
-      "kavlan-11": "2001:660:4406:1a0:503:0::33",
-      "kavlan-12": "2001:660:4406:2a0:503:0::33",
-      "kavlan-13": "2001:660:4406:4a0:503:0::33",
-      "kavlan-14": "2001:660:4406:5a0:503:0::33",
-      "kavlan-16": "2001:660:4406:7a0:503:0::33",
-      "kavlan-18": "2001:660:4406:8a0:503:0::33",
-      "kavlan-2": "2001:660:4406:581:3:0::33",
-      "kavlan-20": "2001:660:4406:3a0:503:0::33",
-      "kavlan-21": "2001:660:4406:6a0:503:0::33",
-      "kavlan-3": "2001:660:4406:582:3:0::33",
-      "kavlan-4": "2001:660:4406:590:3:0::33",
-      "kavlan-5": "2001:660:4406:591:3:0::33",
-      "kavlan-6": "2001:660:4406:592:3:0::33",
-      "kavlan-7": "2001:660:4406:593:3:0::33",
-      "kavlan-8": "2001:660:4406:594:3:0::33",
-      "kavlan-9": "2001:660:4406:595:3:0::33"
+      "kavlan-1": "2001:660:4406:580:3::33",
+      "kavlan-11": "2001:660:4406:1a0:503::33",
+      "kavlan-12": "2001:660:4406:2a0:503::33",
+      "kavlan-13": "2001:660:4406:4a0:503::33",
+      "kavlan-14": "2001:660:4406:5a0:503::33",
+      "kavlan-16": "2001:660:4406:7a0:503::33",
+      "kavlan-18": "2001:660:4406:8a0:503::33",
+      "kavlan-2": "2001:660:4406:581:3::33",
+      "kavlan-20": "2001:660:4406:3a0:503::33",
+      "kavlan-21": "2001:660:4406:6a0:503::33",
+      "kavlan-3": "2001:660:4406:582:3::33",
+      "kavlan-4": "2001:660:4406:590:3::33",
+      "kavlan-5": "2001:660:4406:591:3::33",
+      "kavlan-6": "2001:660:4406:592:3::33",
+      "kavlan-7": "2001:660:4406:593:3::33",
+      "kavlan-8": "2001:660:4406:594:3::33",
+      "kavlan-9": "2001:660:4406:595:3::33"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::33",
-      "kavlan-11": "2001:660:4406:1a0:503:1::33",
-      "kavlan-12": "2001:660:4406:2a0:503:1::33",
-      "kavlan-13": "2001:660:4406:4a0:503:1::33",
-      "kavlan-14": "2001:660:4406:5a0:503:1::33",
-      "kavlan-16": "2001:660:4406:7a0:503:1::33",
-      "kavlan-18": "2001:660:4406:8a0:503:1::33",
-      "kavlan-2": "2001:660:4406:581:3:1::33",
-      "kavlan-20": "2001:660:4406:3a0:503:1::33",
-      "kavlan-21": "2001:660:4406:6a0:503:1::33",
-      "kavlan-3": "2001:660:4406:582:3:1::33",
-      "kavlan-4": "2001:660:4406:590:3:1::33",
-      "kavlan-5": "2001:660:4406:591:3:1::33",
-      "kavlan-6": "2001:660:4406:592:3:1::33",
-      "kavlan-7": "2001:660:4406:593:3:1::33",
-      "kavlan-8": "2001:660:4406:594:3:1::33",
-      "kavlan-9": "2001:660:4406:595:3:1::33"
+      "kavlan-1": "2001:660:4406:580:3:1:0:33",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:33",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:33",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:33",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:33",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:33",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:33",
+      "kavlan-2": "2001:660:4406:581:3:1:0:33",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:33",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:33",
+      "kavlan-3": "2001:660:4406:582:3:1:0:33",
+      "kavlan-4": "2001:660:4406:590:3:1:0:33",
+      "kavlan-5": "2001:660:4406:591:3:1:0:33",
+      "kavlan-6": "2001:660:4406:592:3:1:0:33",
+      "kavlan-7": "2001:660:4406:593:3:1:0:33",
+      "kavlan-8": "2001:660:4406:594:3:1:0:33",
+      "kavlan-9": "2001:660:4406:595:3:1:0:33"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.51",
-      "ip6": "2001:660:4406:500:3:0::33",
+      "ip6": "2001:660:4406:500:3::33",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:76",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.179",
-      "ip6": "2001:660:4406:500:3:1::33",
+      "ip6": "2001:660:4406:500:3:1:0:33",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:77",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-52.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-52.json
index 46c6d8047dc52c4e07cb95c684dbcf2546a8df82..3533c9da15b39aca893da7d238e38dbe0aa8b750 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-52.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-52.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::34",
-      "kavlan-11": "2001:660:4406:1a0:503:0::34",
-      "kavlan-12": "2001:660:4406:2a0:503:0::34",
-      "kavlan-13": "2001:660:4406:4a0:503:0::34",
-      "kavlan-14": "2001:660:4406:5a0:503:0::34",
-      "kavlan-16": "2001:660:4406:7a0:503:0::34",
-      "kavlan-18": "2001:660:4406:8a0:503:0::34",
-      "kavlan-2": "2001:660:4406:581:3:0::34",
-      "kavlan-20": "2001:660:4406:3a0:503:0::34",
-      "kavlan-21": "2001:660:4406:6a0:503:0::34",
-      "kavlan-3": "2001:660:4406:582:3:0::34",
-      "kavlan-4": "2001:660:4406:590:3:0::34",
-      "kavlan-5": "2001:660:4406:591:3:0::34",
-      "kavlan-6": "2001:660:4406:592:3:0::34",
-      "kavlan-7": "2001:660:4406:593:3:0::34",
-      "kavlan-8": "2001:660:4406:594:3:0::34",
-      "kavlan-9": "2001:660:4406:595:3:0::34"
+      "kavlan-1": "2001:660:4406:580:3::34",
+      "kavlan-11": "2001:660:4406:1a0:503::34",
+      "kavlan-12": "2001:660:4406:2a0:503::34",
+      "kavlan-13": "2001:660:4406:4a0:503::34",
+      "kavlan-14": "2001:660:4406:5a0:503::34",
+      "kavlan-16": "2001:660:4406:7a0:503::34",
+      "kavlan-18": "2001:660:4406:8a0:503::34",
+      "kavlan-2": "2001:660:4406:581:3::34",
+      "kavlan-20": "2001:660:4406:3a0:503::34",
+      "kavlan-21": "2001:660:4406:6a0:503::34",
+      "kavlan-3": "2001:660:4406:582:3::34",
+      "kavlan-4": "2001:660:4406:590:3::34",
+      "kavlan-5": "2001:660:4406:591:3::34",
+      "kavlan-6": "2001:660:4406:592:3::34",
+      "kavlan-7": "2001:660:4406:593:3::34",
+      "kavlan-8": "2001:660:4406:594:3::34",
+      "kavlan-9": "2001:660:4406:595:3::34"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::34",
-      "kavlan-11": "2001:660:4406:1a0:503:1::34",
-      "kavlan-12": "2001:660:4406:2a0:503:1::34",
-      "kavlan-13": "2001:660:4406:4a0:503:1::34",
-      "kavlan-14": "2001:660:4406:5a0:503:1::34",
-      "kavlan-16": "2001:660:4406:7a0:503:1::34",
-      "kavlan-18": "2001:660:4406:8a0:503:1::34",
-      "kavlan-2": "2001:660:4406:581:3:1::34",
-      "kavlan-20": "2001:660:4406:3a0:503:1::34",
-      "kavlan-21": "2001:660:4406:6a0:503:1::34",
-      "kavlan-3": "2001:660:4406:582:3:1::34",
-      "kavlan-4": "2001:660:4406:590:3:1::34",
-      "kavlan-5": "2001:660:4406:591:3:1::34",
-      "kavlan-6": "2001:660:4406:592:3:1::34",
-      "kavlan-7": "2001:660:4406:593:3:1::34",
-      "kavlan-8": "2001:660:4406:594:3:1::34",
-      "kavlan-9": "2001:660:4406:595:3:1::34"
+      "kavlan-1": "2001:660:4406:580:3:1:0:34",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:34",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:34",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:34",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:34",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:34",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:34",
+      "kavlan-2": "2001:660:4406:581:3:1:0:34",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:34",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:34",
+      "kavlan-3": "2001:660:4406:582:3:1:0:34",
+      "kavlan-4": "2001:660:4406:590:3:1:0:34",
+      "kavlan-5": "2001:660:4406:591:3:1:0:34",
+      "kavlan-6": "2001:660:4406:592:3:1:0:34",
+      "kavlan-7": "2001:660:4406:593:3:1:0:34",
+      "kavlan-8": "2001:660:4406:594:3:1:0:34",
+      "kavlan-9": "2001:660:4406:595:3:1:0:34"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.52",
-      "ip6": "2001:660:4406:500:3:0::34",
+      "ip6": "2001:660:4406:500:3::34",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:16",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.180",
-      "ip6": "2001:660:4406:500:3:1::34",
+      "ip6": "2001:660:4406:500:3:1:0:34",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:17",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-53.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-53.json
index abd30e0f5585c414c7c4c0ef0072b15c4bae6e7a..44368a1a738bec8cd810c28255bbd52be28a1960 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-53.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-53.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::35",
-      "kavlan-11": "2001:660:4406:1a0:503:0::35",
-      "kavlan-12": "2001:660:4406:2a0:503:0::35",
-      "kavlan-13": "2001:660:4406:4a0:503:0::35",
-      "kavlan-14": "2001:660:4406:5a0:503:0::35",
-      "kavlan-16": "2001:660:4406:7a0:503:0::35",
-      "kavlan-18": "2001:660:4406:8a0:503:0::35",
-      "kavlan-2": "2001:660:4406:581:3:0::35",
-      "kavlan-20": "2001:660:4406:3a0:503:0::35",
-      "kavlan-21": "2001:660:4406:6a0:503:0::35",
-      "kavlan-3": "2001:660:4406:582:3:0::35",
-      "kavlan-4": "2001:660:4406:590:3:0::35",
-      "kavlan-5": "2001:660:4406:591:3:0::35",
-      "kavlan-6": "2001:660:4406:592:3:0::35",
-      "kavlan-7": "2001:660:4406:593:3:0::35",
-      "kavlan-8": "2001:660:4406:594:3:0::35",
-      "kavlan-9": "2001:660:4406:595:3:0::35"
+      "kavlan-1": "2001:660:4406:580:3::35",
+      "kavlan-11": "2001:660:4406:1a0:503::35",
+      "kavlan-12": "2001:660:4406:2a0:503::35",
+      "kavlan-13": "2001:660:4406:4a0:503::35",
+      "kavlan-14": "2001:660:4406:5a0:503::35",
+      "kavlan-16": "2001:660:4406:7a0:503::35",
+      "kavlan-18": "2001:660:4406:8a0:503::35",
+      "kavlan-2": "2001:660:4406:581:3::35",
+      "kavlan-20": "2001:660:4406:3a0:503::35",
+      "kavlan-21": "2001:660:4406:6a0:503::35",
+      "kavlan-3": "2001:660:4406:582:3::35",
+      "kavlan-4": "2001:660:4406:590:3::35",
+      "kavlan-5": "2001:660:4406:591:3::35",
+      "kavlan-6": "2001:660:4406:592:3::35",
+      "kavlan-7": "2001:660:4406:593:3::35",
+      "kavlan-8": "2001:660:4406:594:3::35",
+      "kavlan-9": "2001:660:4406:595:3::35"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::35",
-      "kavlan-11": "2001:660:4406:1a0:503:1::35",
-      "kavlan-12": "2001:660:4406:2a0:503:1::35",
-      "kavlan-13": "2001:660:4406:4a0:503:1::35",
-      "kavlan-14": "2001:660:4406:5a0:503:1::35",
-      "kavlan-16": "2001:660:4406:7a0:503:1::35",
-      "kavlan-18": "2001:660:4406:8a0:503:1::35",
-      "kavlan-2": "2001:660:4406:581:3:1::35",
-      "kavlan-20": "2001:660:4406:3a0:503:1::35",
-      "kavlan-21": "2001:660:4406:6a0:503:1::35",
-      "kavlan-3": "2001:660:4406:582:3:1::35",
-      "kavlan-4": "2001:660:4406:590:3:1::35",
-      "kavlan-5": "2001:660:4406:591:3:1::35",
-      "kavlan-6": "2001:660:4406:592:3:1::35",
-      "kavlan-7": "2001:660:4406:593:3:1::35",
-      "kavlan-8": "2001:660:4406:594:3:1::35",
-      "kavlan-9": "2001:660:4406:595:3:1::35"
+      "kavlan-1": "2001:660:4406:580:3:1:0:35",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:35",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:35",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:35",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:35",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:35",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:35",
+      "kavlan-2": "2001:660:4406:581:3:1:0:35",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:35",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:35",
+      "kavlan-3": "2001:660:4406:582:3:1:0:35",
+      "kavlan-4": "2001:660:4406:590:3:1:0:35",
+      "kavlan-5": "2001:660:4406:591:3:1:0:35",
+      "kavlan-6": "2001:660:4406:592:3:1:0:35",
+      "kavlan-7": "2001:660:4406:593:3:1:0:35",
+      "kavlan-8": "2001:660:4406:594:3:1:0:35",
+      "kavlan-9": "2001:660:4406:595:3:1:0:35"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.53",
-      "ip6": "2001:660:4406:500:3:0::35",
+      "ip6": "2001:660:4406:500:3::35",
       "kavlan": true,
       "mac": "98:03:9b:b0:b5:06",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.181",
-      "ip6": "2001:660:4406:500:3:1::35",
+      "ip6": "2001:660:4406:500:3:1:0:35",
       "kavlan": true,
       "mac": "98:03:9b:b0:b5:07",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-54.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-54.json
index 8248e5860339f16ac22ef06b52a15363c38fc7a4..9be2040bab1695d6e55c55ffc26c6d0e0df34e59 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-54.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-54.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::36",
-      "kavlan-11": "2001:660:4406:1a0:503:0::36",
-      "kavlan-12": "2001:660:4406:2a0:503:0::36",
-      "kavlan-13": "2001:660:4406:4a0:503:0::36",
-      "kavlan-14": "2001:660:4406:5a0:503:0::36",
-      "kavlan-16": "2001:660:4406:7a0:503:0::36",
-      "kavlan-18": "2001:660:4406:8a0:503:0::36",
-      "kavlan-2": "2001:660:4406:581:3:0::36",
-      "kavlan-20": "2001:660:4406:3a0:503:0::36",
-      "kavlan-21": "2001:660:4406:6a0:503:0::36",
-      "kavlan-3": "2001:660:4406:582:3:0::36",
-      "kavlan-4": "2001:660:4406:590:3:0::36",
-      "kavlan-5": "2001:660:4406:591:3:0::36",
-      "kavlan-6": "2001:660:4406:592:3:0::36",
-      "kavlan-7": "2001:660:4406:593:3:0::36",
-      "kavlan-8": "2001:660:4406:594:3:0::36",
-      "kavlan-9": "2001:660:4406:595:3:0::36"
+      "kavlan-1": "2001:660:4406:580:3::36",
+      "kavlan-11": "2001:660:4406:1a0:503::36",
+      "kavlan-12": "2001:660:4406:2a0:503::36",
+      "kavlan-13": "2001:660:4406:4a0:503::36",
+      "kavlan-14": "2001:660:4406:5a0:503::36",
+      "kavlan-16": "2001:660:4406:7a0:503::36",
+      "kavlan-18": "2001:660:4406:8a0:503::36",
+      "kavlan-2": "2001:660:4406:581:3::36",
+      "kavlan-20": "2001:660:4406:3a0:503::36",
+      "kavlan-21": "2001:660:4406:6a0:503::36",
+      "kavlan-3": "2001:660:4406:582:3::36",
+      "kavlan-4": "2001:660:4406:590:3::36",
+      "kavlan-5": "2001:660:4406:591:3::36",
+      "kavlan-6": "2001:660:4406:592:3::36",
+      "kavlan-7": "2001:660:4406:593:3::36",
+      "kavlan-8": "2001:660:4406:594:3::36",
+      "kavlan-9": "2001:660:4406:595:3::36"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::36",
-      "kavlan-11": "2001:660:4406:1a0:503:1::36",
-      "kavlan-12": "2001:660:4406:2a0:503:1::36",
-      "kavlan-13": "2001:660:4406:4a0:503:1::36",
-      "kavlan-14": "2001:660:4406:5a0:503:1::36",
-      "kavlan-16": "2001:660:4406:7a0:503:1::36",
-      "kavlan-18": "2001:660:4406:8a0:503:1::36",
-      "kavlan-2": "2001:660:4406:581:3:1::36",
-      "kavlan-20": "2001:660:4406:3a0:503:1::36",
-      "kavlan-21": "2001:660:4406:6a0:503:1::36",
-      "kavlan-3": "2001:660:4406:582:3:1::36",
-      "kavlan-4": "2001:660:4406:590:3:1::36",
-      "kavlan-5": "2001:660:4406:591:3:1::36",
-      "kavlan-6": "2001:660:4406:592:3:1::36",
-      "kavlan-7": "2001:660:4406:593:3:1::36",
-      "kavlan-8": "2001:660:4406:594:3:1::36",
-      "kavlan-9": "2001:660:4406:595:3:1::36"
+      "kavlan-1": "2001:660:4406:580:3:1:0:36",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:36",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:36",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:36",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:36",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:36",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:36",
+      "kavlan-2": "2001:660:4406:581:3:1:0:36",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:36",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:36",
+      "kavlan-3": "2001:660:4406:582:3:1:0:36",
+      "kavlan-4": "2001:660:4406:590:3:1:0:36",
+      "kavlan-5": "2001:660:4406:591:3:1:0:36",
+      "kavlan-6": "2001:660:4406:592:3:1:0:36",
+      "kavlan-7": "2001:660:4406:593:3:1:0:36",
+      "kavlan-8": "2001:660:4406:594:3:1:0:36",
+      "kavlan-9": "2001:660:4406:595:3:1:0:36"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.54",
-      "ip6": "2001:660:4406:500:3:0::36",
+      "ip6": "2001:660:4406:500:3::36",
       "kavlan": true,
       "mac": "98:03:9b:b0:c8:ee",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.182",
-      "ip6": "2001:660:4406:500:3:1::36",
+      "ip6": "2001:660:4406:500:3:1:0:36",
       "kavlan": true,
       "mac": "98:03:9b:b0:c8:ef",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-55.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-55.json
index 42fa2f943becfb3b6277723e17504295658a7f58..235a1b1ebbf196b6b82266fc0ba6226e218d965b 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-55.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-55.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::37",
-      "kavlan-11": "2001:660:4406:1a0:503:0::37",
-      "kavlan-12": "2001:660:4406:2a0:503:0::37",
-      "kavlan-13": "2001:660:4406:4a0:503:0::37",
-      "kavlan-14": "2001:660:4406:5a0:503:0::37",
-      "kavlan-16": "2001:660:4406:7a0:503:0::37",
-      "kavlan-18": "2001:660:4406:8a0:503:0::37",
-      "kavlan-2": "2001:660:4406:581:3:0::37",
-      "kavlan-20": "2001:660:4406:3a0:503:0::37",
-      "kavlan-21": "2001:660:4406:6a0:503:0::37",
-      "kavlan-3": "2001:660:4406:582:3:0::37",
-      "kavlan-4": "2001:660:4406:590:3:0::37",
-      "kavlan-5": "2001:660:4406:591:3:0::37",
-      "kavlan-6": "2001:660:4406:592:3:0::37",
-      "kavlan-7": "2001:660:4406:593:3:0::37",
-      "kavlan-8": "2001:660:4406:594:3:0::37",
-      "kavlan-9": "2001:660:4406:595:3:0::37"
+      "kavlan-1": "2001:660:4406:580:3::37",
+      "kavlan-11": "2001:660:4406:1a0:503::37",
+      "kavlan-12": "2001:660:4406:2a0:503::37",
+      "kavlan-13": "2001:660:4406:4a0:503::37",
+      "kavlan-14": "2001:660:4406:5a0:503::37",
+      "kavlan-16": "2001:660:4406:7a0:503::37",
+      "kavlan-18": "2001:660:4406:8a0:503::37",
+      "kavlan-2": "2001:660:4406:581:3::37",
+      "kavlan-20": "2001:660:4406:3a0:503::37",
+      "kavlan-21": "2001:660:4406:6a0:503::37",
+      "kavlan-3": "2001:660:4406:582:3::37",
+      "kavlan-4": "2001:660:4406:590:3::37",
+      "kavlan-5": "2001:660:4406:591:3::37",
+      "kavlan-6": "2001:660:4406:592:3::37",
+      "kavlan-7": "2001:660:4406:593:3::37",
+      "kavlan-8": "2001:660:4406:594:3::37",
+      "kavlan-9": "2001:660:4406:595:3::37"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::37",
-      "kavlan-11": "2001:660:4406:1a0:503:1::37",
-      "kavlan-12": "2001:660:4406:2a0:503:1::37",
-      "kavlan-13": "2001:660:4406:4a0:503:1::37",
-      "kavlan-14": "2001:660:4406:5a0:503:1::37",
-      "kavlan-16": "2001:660:4406:7a0:503:1::37",
-      "kavlan-18": "2001:660:4406:8a0:503:1::37",
-      "kavlan-2": "2001:660:4406:581:3:1::37",
-      "kavlan-20": "2001:660:4406:3a0:503:1::37",
-      "kavlan-21": "2001:660:4406:6a0:503:1::37",
-      "kavlan-3": "2001:660:4406:582:3:1::37",
-      "kavlan-4": "2001:660:4406:590:3:1::37",
-      "kavlan-5": "2001:660:4406:591:3:1::37",
-      "kavlan-6": "2001:660:4406:592:3:1::37",
-      "kavlan-7": "2001:660:4406:593:3:1::37",
-      "kavlan-8": "2001:660:4406:594:3:1::37",
-      "kavlan-9": "2001:660:4406:595:3:1::37"
+      "kavlan-1": "2001:660:4406:580:3:1:0:37",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:37",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:37",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:37",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:37",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:37",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:37",
+      "kavlan-2": "2001:660:4406:581:3:1:0:37",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:37",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:37",
+      "kavlan-3": "2001:660:4406:582:3:1:0:37",
+      "kavlan-4": "2001:660:4406:590:3:1:0:37",
+      "kavlan-5": "2001:660:4406:591:3:1:0:37",
+      "kavlan-6": "2001:660:4406:592:3:1:0:37",
+      "kavlan-7": "2001:660:4406:593:3:1:0:37",
+      "kavlan-8": "2001:660:4406:594:3:1:0:37",
+      "kavlan-9": "2001:660:4406:595:3:1:0:37"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.55",
-      "ip6": "2001:660:4406:500:3:0::37",
+      "ip6": "2001:660:4406:500:3::37",
       "kavlan": true,
       "mac": "98:03:9b:b0:bf:ce",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.183",
-      "ip6": "2001:660:4406:500:3:1::37",
+      "ip6": "2001:660:4406:500:3:1:0:37",
       "kavlan": true,
       "mac": "98:03:9b:b0:bf:cf",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-56.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-56.json
index e9aa5142fcf610f6c7f6c3e99bafd800c3d55ebe..b2384bd264a00ec1aa1af6f6340734689ccc91bb 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-56.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-56.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::38",
-      "kavlan-11": "2001:660:4406:1a0:503:0::38",
-      "kavlan-12": "2001:660:4406:2a0:503:0::38",
-      "kavlan-13": "2001:660:4406:4a0:503:0::38",
-      "kavlan-14": "2001:660:4406:5a0:503:0::38",
-      "kavlan-16": "2001:660:4406:7a0:503:0::38",
-      "kavlan-18": "2001:660:4406:8a0:503:0::38",
-      "kavlan-2": "2001:660:4406:581:3:0::38",
-      "kavlan-20": "2001:660:4406:3a0:503:0::38",
-      "kavlan-21": "2001:660:4406:6a0:503:0::38",
-      "kavlan-3": "2001:660:4406:582:3:0::38",
-      "kavlan-4": "2001:660:4406:590:3:0::38",
-      "kavlan-5": "2001:660:4406:591:3:0::38",
-      "kavlan-6": "2001:660:4406:592:3:0::38",
-      "kavlan-7": "2001:660:4406:593:3:0::38",
-      "kavlan-8": "2001:660:4406:594:3:0::38",
-      "kavlan-9": "2001:660:4406:595:3:0::38"
+      "kavlan-1": "2001:660:4406:580:3::38",
+      "kavlan-11": "2001:660:4406:1a0:503::38",
+      "kavlan-12": "2001:660:4406:2a0:503::38",
+      "kavlan-13": "2001:660:4406:4a0:503::38",
+      "kavlan-14": "2001:660:4406:5a0:503::38",
+      "kavlan-16": "2001:660:4406:7a0:503::38",
+      "kavlan-18": "2001:660:4406:8a0:503::38",
+      "kavlan-2": "2001:660:4406:581:3::38",
+      "kavlan-20": "2001:660:4406:3a0:503::38",
+      "kavlan-21": "2001:660:4406:6a0:503::38",
+      "kavlan-3": "2001:660:4406:582:3::38",
+      "kavlan-4": "2001:660:4406:590:3::38",
+      "kavlan-5": "2001:660:4406:591:3::38",
+      "kavlan-6": "2001:660:4406:592:3::38",
+      "kavlan-7": "2001:660:4406:593:3::38",
+      "kavlan-8": "2001:660:4406:594:3::38",
+      "kavlan-9": "2001:660:4406:595:3::38"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::38",
-      "kavlan-11": "2001:660:4406:1a0:503:1::38",
-      "kavlan-12": "2001:660:4406:2a0:503:1::38",
-      "kavlan-13": "2001:660:4406:4a0:503:1::38",
-      "kavlan-14": "2001:660:4406:5a0:503:1::38",
-      "kavlan-16": "2001:660:4406:7a0:503:1::38",
-      "kavlan-18": "2001:660:4406:8a0:503:1::38",
-      "kavlan-2": "2001:660:4406:581:3:1::38",
-      "kavlan-20": "2001:660:4406:3a0:503:1::38",
-      "kavlan-21": "2001:660:4406:6a0:503:1::38",
-      "kavlan-3": "2001:660:4406:582:3:1::38",
-      "kavlan-4": "2001:660:4406:590:3:1::38",
-      "kavlan-5": "2001:660:4406:591:3:1::38",
-      "kavlan-6": "2001:660:4406:592:3:1::38",
-      "kavlan-7": "2001:660:4406:593:3:1::38",
-      "kavlan-8": "2001:660:4406:594:3:1::38",
-      "kavlan-9": "2001:660:4406:595:3:1::38"
+      "kavlan-1": "2001:660:4406:580:3:1:0:38",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:38",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:38",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:38",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:38",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:38",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:38",
+      "kavlan-2": "2001:660:4406:581:3:1:0:38",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:38",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:38",
+      "kavlan-3": "2001:660:4406:582:3:1:0:38",
+      "kavlan-4": "2001:660:4406:590:3:1:0:38",
+      "kavlan-5": "2001:660:4406:591:3:1:0:38",
+      "kavlan-6": "2001:660:4406:592:3:1:0:38",
+      "kavlan-7": "2001:660:4406:593:3:1:0:38",
+      "kavlan-8": "2001:660:4406:594:3:1:0:38",
+      "kavlan-9": "2001:660:4406:595:3:1:0:38"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.56",
-      "ip6": "2001:660:4406:500:3:0::38",
+      "ip6": "2001:660:4406:500:3::38",
       "kavlan": true,
       "mac": "98:03:9b:b0:65:12",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.184",
-      "ip6": "2001:660:4406:500:3:1::38",
+      "ip6": "2001:660:4406:500:3:1:0:38",
       "kavlan": true,
       "mac": "98:03:9b:b0:65:13",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-57.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-57.json
index e594989d5c89527701b44bb3488afcac8a6be76e..9ed5dd8eb140fcfdb11f4937ac4df1c3277b2911 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-57.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-57.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::39",
-      "kavlan-11": "2001:660:4406:1a0:503:0::39",
-      "kavlan-12": "2001:660:4406:2a0:503:0::39",
-      "kavlan-13": "2001:660:4406:4a0:503:0::39",
-      "kavlan-14": "2001:660:4406:5a0:503:0::39",
-      "kavlan-16": "2001:660:4406:7a0:503:0::39",
-      "kavlan-18": "2001:660:4406:8a0:503:0::39",
-      "kavlan-2": "2001:660:4406:581:3:0::39",
-      "kavlan-20": "2001:660:4406:3a0:503:0::39",
-      "kavlan-21": "2001:660:4406:6a0:503:0::39",
-      "kavlan-3": "2001:660:4406:582:3:0::39",
-      "kavlan-4": "2001:660:4406:590:3:0::39",
-      "kavlan-5": "2001:660:4406:591:3:0::39",
-      "kavlan-6": "2001:660:4406:592:3:0::39",
-      "kavlan-7": "2001:660:4406:593:3:0::39",
-      "kavlan-8": "2001:660:4406:594:3:0::39",
-      "kavlan-9": "2001:660:4406:595:3:0::39"
+      "kavlan-1": "2001:660:4406:580:3::39",
+      "kavlan-11": "2001:660:4406:1a0:503::39",
+      "kavlan-12": "2001:660:4406:2a0:503::39",
+      "kavlan-13": "2001:660:4406:4a0:503::39",
+      "kavlan-14": "2001:660:4406:5a0:503::39",
+      "kavlan-16": "2001:660:4406:7a0:503::39",
+      "kavlan-18": "2001:660:4406:8a0:503::39",
+      "kavlan-2": "2001:660:4406:581:3::39",
+      "kavlan-20": "2001:660:4406:3a0:503::39",
+      "kavlan-21": "2001:660:4406:6a0:503::39",
+      "kavlan-3": "2001:660:4406:582:3::39",
+      "kavlan-4": "2001:660:4406:590:3::39",
+      "kavlan-5": "2001:660:4406:591:3::39",
+      "kavlan-6": "2001:660:4406:592:3::39",
+      "kavlan-7": "2001:660:4406:593:3::39",
+      "kavlan-8": "2001:660:4406:594:3::39",
+      "kavlan-9": "2001:660:4406:595:3::39"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::39",
-      "kavlan-11": "2001:660:4406:1a0:503:1::39",
-      "kavlan-12": "2001:660:4406:2a0:503:1::39",
-      "kavlan-13": "2001:660:4406:4a0:503:1::39",
-      "kavlan-14": "2001:660:4406:5a0:503:1::39",
-      "kavlan-16": "2001:660:4406:7a0:503:1::39",
-      "kavlan-18": "2001:660:4406:8a0:503:1::39",
-      "kavlan-2": "2001:660:4406:581:3:1::39",
-      "kavlan-20": "2001:660:4406:3a0:503:1::39",
-      "kavlan-21": "2001:660:4406:6a0:503:1::39",
-      "kavlan-3": "2001:660:4406:582:3:1::39",
-      "kavlan-4": "2001:660:4406:590:3:1::39",
-      "kavlan-5": "2001:660:4406:591:3:1::39",
-      "kavlan-6": "2001:660:4406:592:3:1::39",
-      "kavlan-7": "2001:660:4406:593:3:1::39",
-      "kavlan-8": "2001:660:4406:594:3:1::39",
-      "kavlan-9": "2001:660:4406:595:3:1::39"
+      "kavlan-1": "2001:660:4406:580:3:1:0:39",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:39",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:39",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:39",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:39",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:39",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:39",
+      "kavlan-2": "2001:660:4406:581:3:1:0:39",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:39",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:39",
+      "kavlan-3": "2001:660:4406:582:3:1:0:39",
+      "kavlan-4": "2001:660:4406:590:3:1:0:39",
+      "kavlan-5": "2001:660:4406:591:3:1:0:39",
+      "kavlan-6": "2001:660:4406:592:3:1:0:39",
+      "kavlan-7": "2001:660:4406:593:3:1:0:39",
+      "kavlan-8": "2001:660:4406:594:3:1:0:39",
+      "kavlan-9": "2001:660:4406:595:3:1:0:39"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.57",
-      "ip6": "2001:660:4406:500:3:0::39",
+      "ip6": "2001:660:4406:500:3::39",
       "kavlan": true,
       "mac": "98:03:9b:b0:c0:16",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.185",
-      "ip6": "2001:660:4406:500:3:1::39",
+      "ip6": "2001:660:4406:500:3:1:0:39",
       "kavlan": true,
       "mac": "98:03:9b:b0:c0:17",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-58.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-58.json
index d755a016e9763f8c5ecfcfca81c651db3d959f1a..6c09786594e133242411b1e63658fc87b5941bb9 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-58.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-58.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::3a",
-      "kavlan-11": "2001:660:4406:1a0:503:0::3a",
-      "kavlan-12": "2001:660:4406:2a0:503:0::3a",
-      "kavlan-13": "2001:660:4406:4a0:503:0::3a",
-      "kavlan-14": "2001:660:4406:5a0:503:0::3a",
-      "kavlan-16": "2001:660:4406:7a0:503:0::3a",
-      "kavlan-18": "2001:660:4406:8a0:503:0::3a",
-      "kavlan-2": "2001:660:4406:581:3:0::3a",
-      "kavlan-20": "2001:660:4406:3a0:503:0::3a",
-      "kavlan-21": "2001:660:4406:6a0:503:0::3a",
-      "kavlan-3": "2001:660:4406:582:3:0::3a",
-      "kavlan-4": "2001:660:4406:590:3:0::3a",
-      "kavlan-5": "2001:660:4406:591:3:0::3a",
-      "kavlan-6": "2001:660:4406:592:3:0::3a",
-      "kavlan-7": "2001:660:4406:593:3:0::3a",
-      "kavlan-8": "2001:660:4406:594:3:0::3a",
-      "kavlan-9": "2001:660:4406:595:3:0::3a"
+      "kavlan-1": "2001:660:4406:580:3::3a",
+      "kavlan-11": "2001:660:4406:1a0:503::3a",
+      "kavlan-12": "2001:660:4406:2a0:503::3a",
+      "kavlan-13": "2001:660:4406:4a0:503::3a",
+      "kavlan-14": "2001:660:4406:5a0:503::3a",
+      "kavlan-16": "2001:660:4406:7a0:503::3a",
+      "kavlan-18": "2001:660:4406:8a0:503::3a",
+      "kavlan-2": "2001:660:4406:581:3::3a",
+      "kavlan-20": "2001:660:4406:3a0:503::3a",
+      "kavlan-21": "2001:660:4406:6a0:503::3a",
+      "kavlan-3": "2001:660:4406:582:3::3a",
+      "kavlan-4": "2001:660:4406:590:3::3a",
+      "kavlan-5": "2001:660:4406:591:3::3a",
+      "kavlan-6": "2001:660:4406:592:3::3a",
+      "kavlan-7": "2001:660:4406:593:3::3a",
+      "kavlan-8": "2001:660:4406:594:3::3a",
+      "kavlan-9": "2001:660:4406:595:3::3a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::3a",
-      "kavlan-11": "2001:660:4406:1a0:503:1::3a",
-      "kavlan-12": "2001:660:4406:2a0:503:1::3a",
-      "kavlan-13": "2001:660:4406:4a0:503:1::3a",
-      "kavlan-14": "2001:660:4406:5a0:503:1::3a",
-      "kavlan-16": "2001:660:4406:7a0:503:1::3a",
-      "kavlan-18": "2001:660:4406:8a0:503:1::3a",
-      "kavlan-2": "2001:660:4406:581:3:1::3a",
-      "kavlan-20": "2001:660:4406:3a0:503:1::3a",
-      "kavlan-21": "2001:660:4406:6a0:503:1::3a",
-      "kavlan-3": "2001:660:4406:582:3:1::3a",
-      "kavlan-4": "2001:660:4406:590:3:1::3a",
-      "kavlan-5": "2001:660:4406:591:3:1::3a",
-      "kavlan-6": "2001:660:4406:592:3:1::3a",
-      "kavlan-7": "2001:660:4406:593:3:1::3a",
-      "kavlan-8": "2001:660:4406:594:3:1::3a",
-      "kavlan-9": "2001:660:4406:595:3:1::3a"
+      "kavlan-1": "2001:660:4406:580:3:1:0:3a",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:3a",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:3a",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:3a",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:3a",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:3a",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:3a",
+      "kavlan-2": "2001:660:4406:581:3:1:0:3a",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:3a",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:3a",
+      "kavlan-3": "2001:660:4406:582:3:1:0:3a",
+      "kavlan-4": "2001:660:4406:590:3:1:0:3a",
+      "kavlan-5": "2001:660:4406:591:3:1:0:3a",
+      "kavlan-6": "2001:660:4406:592:3:1:0:3a",
+      "kavlan-7": "2001:660:4406:593:3:1:0:3a",
+      "kavlan-8": "2001:660:4406:594:3:1:0:3a",
+      "kavlan-9": "2001:660:4406:595:3:1:0:3a"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.58",
-      "ip6": "2001:660:4406:500:3:0::3a",
+      "ip6": "2001:660:4406:500:3::3a",
       "kavlan": true,
       "mac": "98:03:9b:b0:c4:ee",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.186",
-      "ip6": "2001:660:4406:500:3:1::3a",
+      "ip6": "2001:660:4406:500:3:1:0:3a",
       "kavlan": true,
       "mac": "98:03:9b:b0:c4:ef",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-59.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-59.json
index e7e5bbabc27a34d9171329c13cf7b5bc803267a0..7269c9726cb737aa709acc035cf4cc9112f51716 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-59.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-59.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::3b",
-      "kavlan-11": "2001:660:4406:1a0:503:0::3b",
-      "kavlan-12": "2001:660:4406:2a0:503:0::3b",
-      "kavlan-13": "2001:660:4406:4a0:503:0::3b",
-      "kavlan-14": "2001:660:4406:5a0:503:0::3b",
-      "kavlan-16": "2001:660:4406:7a0:503:0::3b",
-      "kavlan-18": "2001:660:4406:8a0:503:0::3b",
-      "kavlan-2": "2001:660:4406:581:3:0::3b",
-      "kavlan-20": "2001:660:4406:3a0:503:0::3b",
-      "kavlan-21": "2001:660:4406:6a0:503:0::3b",
-      "kavlan-3": "2001:660:4406:582:3:0::3b",
-      "kavlan-4": "2001:660:4406:590:3:0::3b",
-      "kavlan-5": "2001:660:4406:591:3:0::3b",
-      "kavlan-6": "2001:660:4406:592:3:0::3b",
-      "kavlan-7": "2001:660:4406:593:3:0::3b",
-      "kavlan-8": "2001:660:4406:594:3:0::3b",
-      "kavlan-9": "2001:660:4406:595:3:0::3b"
+      "kavlan-1": "2001:660:4406:580:3::3b",
+      "kavlan-11": "2001:660:4406:1a0:503::3b",
+      "kavlan-12": "2001:660:4406:2a0:503::3b",
+      "kavlan-13": "2001:660:4406:4a0:503::3b",
+      "kavlan-14": "2001:660:4406:5a0:503::3b",
+      "kavlan-16": "2001:660:4406:7a0:503::3b",
+      "kavlan-18": "2001:660:4406:8a0:503::3b",
+      "kavlan-2": "2001:660:4406:581:3::3b",
+      "kavlan-20": "2001:660:4406:3a0:503::3b",
+      "kavlan-21": "2001:660:4406:6a0:503::3b",
+      "kavlan-3": "2001:660:4406:582:3::3b",
+      "kavlan-4": "2001:660:4406:590:3::3b",
+      "kavlan-5": "2001:660:4406:591:3::3b",
+      "kavlan-6": "2001:660:4406:592:3::3b",
+      "kavlan-7": "2001:660:4406:593:3::3b",
+      "kavlan-8": "2001:660:4406:594:3::3b",
+      "kavlan-9": "2001:660:4406:595:3::3b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::3b",
-      "kavlan-11": "2001:660:4406:1a0:503:1::3b",
-      "kavlan-12": "2001:660:4406:2a0:503:1::3b",
-      "kavlan-13": "2001:660:4406:4a0:503:1::3b",
-      "kavlan-14": "2001:660:4406:5a0:503:1::3b",
-      "kavlan-16": "2001:660:4406:7a0:503:1::3b",
-      "kavlan-18": "2001:660:4406:8a0:503:1::3b",
-      "kavlan-2": "2001:660:4406:581:3:1::3b",
-      "kavlan-20": "2001:660:4406:3a0:503:1::3b",
-      "kavlan-21": "2001:660:4406:6a0:503:1::3b",
-      "kavlan-3": "2001:660:4406:582:3:1::3b",
-      "kavlan-4": "2001:660:4406:590:3:1::3b",
-      "kavlan-5": "2001:660:4406:591:3:1::3b",
-      "kavlan-6": "2001:660:4406:592:3:1::3b",
-      "kavlan-7": "2001:660:4406:593:3:1::3b",
-      "kavlan-8": "2001:660:4406:594:3:1::3b",
-      "kavlan-9": "2001:660:4406:595:3:1::3b"
+      "kavlan-1": "2001:660:4406:580:3:1:0:3b",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:3b",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:3b",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:3b",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:3b",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:3b",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:3b",
+      "kavlan-2": "2001:660:4406:581:3:1:0:3b",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:3b",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:3b",
+      "kavlan-3": "2001:660:4406:582:3:1:0:3b",
+      "kavlan-4": "2001:660:4406:590:3:1:0:3b",
+      "kavlan-5": "2001:660:4406:591:3:1:0:3b",
+      "kavlan-6": "2001:660:4406:592:3:1:0:3b",
+      "kavlan-7": "2001:660:4406:593:3:1:0:3b",
+      "kavlan-8": "2001:660:4406:594:3:1:0:3b",
+      "kavlan-9": "2001:660:4406:595:3:1:0:3b"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.59",
-      "ip6": "2001:660:4406:500:3:0::3b",
+      "ip6": "2001:660:4406:500:3::3b",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:2e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.187",
-      "ip6": "2001:660:4406:500:3:1::3b",
+      "ip6": "2001:660:4406:500:3:1:0:3b",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:2f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-6.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-6.json
index e18f1f3a9b950f15463930116dad972c8f260769..4ccdd28c2e192e03cb02a2c757d03337edfe23c8 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-6.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-6.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::6",
-      "kavlan-11": "2001:660:4406:1a0:503:0::6",
-      "kavlan-12": "2001:660:4406:2a0:503:0::6",
-      "kavlan-13": "2001:660:4406:4a0:503:0::6",
-      "kavlan-14": "2001:660:4406:5a0:503:0::6",
-      "kavlan-16": "2001:660:4406:7a0:503:0::6",
-      "kavlan-18": "2001:660:4406:8a0:503:0::6",
-      "kavlan-2": "2001:660:4406:581:3:0::6",
-      "kavlan-20": "2001:660:4406:3a0:503:0::6",
-      "kavlan-21": "2001:660:4406:6a0:503:0::6",
-      "kavlan-3": "2001:660:4406:582:3:0::6",
-      "kavlan-4": "2001:660:4406:590:3:0::6",
-      "kavlan-5": "2001:660:4406:591:3:0::6",
-      "kavlan-6": "2001:660:4406:592:3:0::6",
-      "kavlan-7": "2001:660:4406:593:3:0::6",
-      "kavlan-8": "2001:660:4406:594:3:0::6",
-      "kavlan-9": "2001:660:4406:595:3:0::6"
+      "kavlan-1": "2001:660:4406:580:3::6",
+      "kavlan-11": "2001:660:4406:1a0:503::6",
+      "kavlan-12": "2001:660:4406:2a0:503::6",
+      "kavlan-13": "2001:660:4406:4a0:503::6",
+      "kavlan-14": "2001:660:4406:5a0:503::6",
+      "kavlan-16": "2001:660:4406:7a0:503::6",
+      "kavlan-18": "2001:660:4406:8a0:503::6",
+      "kavlan-2": "2001:660:4406:581:3::6",
+      "kavlan-20": "2001:660:4406:3a0:503::6",
+      "kavlan-21": "2001:660:4406:6a0:503::6",
+      "kavlan-3": "2001:660:4406:582:3::6",
+      "kavlan-4": "2001:660:4406:590:3::6",
+      "kavlan-5": "2001:660:4406:591:3::6",
+      "kavlan-6": "2001:660:4406:592:3::6",
+      "kavlan-7": "2001:660:4406:593:3::6",
+      "kavlan-8": "2001:660:4406:594:3::6",
+      "kavlan-9": "2001:660:4406:595:3::6"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::6",
-      "kavlan-11": "2001:660:4406:1a0:503:1::6",
-      "kavlan-12": "2001:660:4406:2a0:503:1::6",
-      "kavlan-13": "2001:660:4406:4a0:503:1::6",
-      "kavlan-14": "2001:660:4406:5a0:503:1::6",
-      "kavlan-16": "2001:660:4406:7a0:503:1::6",
-      "kavlan-18": "2001:660:4406:8a0:503:1::6",
-      "kavlan-2": "2001:660:4406:581:3:1::6",
-      "kavlan-20": "2001:660:4406:3a0:503:1::6",
-      "kavlan-21": "2001:660:4406:6a0:503:1::6",
-      "kavlan-3": "2001:660:4406:582:3:1::6",
-      "kavlan-4": "2001:660:4406:590:3:1::6",
-      "kavlan-5": "2001:660:4406:591:3:1::6",
-      "kavlan-6": "2001:660:4406:592:3:1::6",
-      "kavlan-7": "2001:660:4406:593:3:1::6",
-      "kavlan-8": "2001:660:4406:594:3:1::6",
-      "kavlan-9": "2001:660:4406:595:3:1::6"
+      "kavlan-1": "2001:660:4406:580:3:1:0:6",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:6",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:6",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:6",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:6",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:6",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:6",
+      "kavlan-2": "2001:660:4406:581:3:1:0:6",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:6",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:6",
+      "kavlan-3": "2001:660:4406:582:3:1:0:6",
+      "kavlan-4": "2001:660:4406:590:3:1:0:6",
+      "kavlan-5": "2001:660:4406:591:3:1:0:6",
+      "kavlan-6": "2001:660:4406:592:3:1:0:6",
+      "kavlan-7": "2001:660:4406:593:3:1:0:6",
+      "kavlan-8": "2001:660:4406:594:3:1:0:6",
+      "kavlan-9": "2001:660:4406:595:3:1:0:6"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.6",
-      "ip6": "2001:660:4406:500:3:0::6",
+      "ip6": "2001:660:4406:500:3::6",
       "kavlan": true,
       "mac": "98:03:9b:b0:d0:16",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.134",
-      "ip6": "2001:660:4406:500:3:1::6",
+      "ip6": "2001:660:4406:500:3:1:0:6",
       "kavlan": true,
       "mac": "98:03:9b:b0:d0:17",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-60.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-60.json
index 310ca1bd8f749c3403111287dbb6bb36e995c915..2b4d00f85730e4b05ac0273bab75deedac6164df 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-60.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-60.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::3c",
-      "kavlan-11": "2001:660:4406:1a0:503:0::3c",
-      "kavlan-12": "2001:660:4406:2a0:503:0::3c",
-      "kavlan-13": "2001:660:4406:4a0:503:0::3c",
-      "kavlan-14": "2001:660:4406:5a0:503:0::3c",
-      "kavlan-16": "2001:660:4406:7a0:503:0::3c",
-      "kavlan-18": "2001:660:4406:8a0:503:0::3c",
-      "kavlan-2": "2001:660:4406:581:3:0::3c",
-      "kavlan-20": "2001:660:4406:3a0:503:0::3c",
-      "kavlan-21": "2001:660:4406:6a0:503:0::3c",
-      "kavlan-3": "2001:660:4406:582:3:0::3c",
-      "kavlan-4": "2001:660:4406:590:3:0::3c",
-      "kavlan-5": "2001:660:4406:591:3:0::3c",
-      "kavlan-6": "2001:660:4406:592:3:0::3c",
-      "kavlan-7": "2001:660:4406:593:3:0::3c",
-      "kavlan-8": "2001:660:4406:594:3:0::3c",
-      "kavlan-9": "2001:660:4406:595:3:0::3c"
+      "kavlan-1": "2001:660:4406:580:3::3c",
+      "kavlan-11": "2001:660:4406:1a0:503::3c",
+      "kavlan-12": "2001:660:4406:2a0:503::3c",
+      "kavlan-13": "2001:660:4406:4a0:503::3c",
+      "kavlan-14": "2001:660:4406:5a0:503::3c",
+      "kavlan-16": "2001:660:4406:7a0:503::3c",
+      "kavlan-18": "2001:660:4406:8a0:503::3c",
+      "kavlan-2": "2001:660:4406:581:3::3c",
+      "kavlan-20": "2001:660:4406:3a0:503::3c",
+      "kavlan-21": "2001:660:4406:6a0:503::3c",
+      "kavlan-3": "2001:660:4406:582:3::3c",
+      "kavlan-4": "2001:660:4406:590:3::3c",
+      "kavlan-5": "2001:660:4406:591:3::3c",
+      "kavlan-6": "2001:660:4406:592:3::3c",
+      "kavlan-7": "2001:660:4406:593:3::3c",
+      "kavlan-8": "2001:660:4406:594:3::3c",
+      "kavlan-9": "2001:660:4406:595:3::3c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::3c",
-      "kavlan-11": "2001:660:4406:1a0:503:1::3c",
-      "kavlan-12": "2001:660:4406:2a0:503:1::3c",
-      "kavlan-13": "2001:660:4406:4a0:503:1::3c",
-      "kavlan-14": "2001:660:4406:5a0:503:1::3c",
-      "kavlan-16": "2001:660:4406:7a0:503:1::3c",
-      "kavlan-18": "2001:660:4406:8a0:503:1::3c",
-      "kavlan-2": "2001:660:4406:581:3:1::3c",
-      "kavlan-20": "2001:660:4406:3a0:503:1::3c",
-      "kavlan-21": "2001:660:4406:6a0:503:1::3c",
-      "kavlan-3": "2001:660:4406:582:3:1::3c",
-      "kavlan-4": "2001:660:4406:590:3:1::3c",
-      "kavlan-5": "2001:660:4406:591:3:1::3c",
-      "kavlan-6": "2001:660:4406:592:3:1::3c",
-      "kavlan-7": "2001:660:4406:593:3:1::3c",
-      "kavlan-8": "2001:660:4406:594:3:1::3c",
-      "kavlan-9": "2001:660:4406:595:3:1::3c"
+      "kavlan-1": "2001:660:4406:580:3:1:0:3c",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:3c",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:3c",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:3c",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:3c",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:3c",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:3c",
+      "kavlan-2": "2001:660:4406:581:3:1:0:3c",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:3c",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:3c",
+      "kavlan-3": "2001:660:4406:582:3:1:0:3c",
+      "kavlan-4": "2001:660:4406:590:3:1:0:3c",
+      "kavlan-5": "2001:660:4406:591:3:1:0:3c",
+      "kavlan-6": "2001:660:4406:592:3:1:0:3c",
+      "kavlan-7": "2001:660:4406:593:3:1:0:3c",
+      "kavlan-8": "2001:660:4406:594:3:1:0:3c",
+      "kavlan-9": "2001:660:4406:595:3:1:0:3c"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.60",
-      "ip6": "2001:660:4406:500:3:0::3c",
+      "ip6": "2001:660:4406:500:3::3c",
       "kavlan": true,
       "mac": "98:03:9b:b0:c0:f6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.188",
-      "ip6": "2001:660:4406:500:3:1::3c",
+      "ip6": "2001:660:4406:500:3:1:0:3c",
       "kavlan": true,
       "mac": "98:03:9b:b0:c0:f7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-61.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-61.json
index 7d4a820f1f96965ec97a0a73ef0440599eb159dc..6a195e31c5f4708e7d8929bb60a1b8df9c5331f2 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-61.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-61.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::3d",
-      "kavlan-11": "2001:660:4406:1a0:503:0::3d",
-      "kavlan-12": "2001:660:4406:2a0:503:0::3d",
-      "kavlan-13": "2001:660:4406:4a0:503:0::3d",
-      "kavlan-14": "2001:660:4406:5a0:503:0::3d",
-      "kavlan-16": "2001:660:4406:7a0:503:0::3d",
-      "kavlan-18": "2001:660:4406:8a0:503:0::3d",
-      "kavlan-2": "2001:660:4406:581:3:0::3d",
-      "kavlan-20": "2001:660:4406:3a0:503:0::3d",
-      "kavlan-21": "2001:660:4406:6a0:503:0::3d",
-      "kavlan-3": "2001:660:4406:582:3:0::3d",
-      "kavlan-4": "2001:660:4406:590:3:0::3d",
-      "kavlan-5": "2001:660:4406:591:3:0::3d",
-      "kavlan-6": "2001:660:4406:592:3:0::3d",
-      "kavlan-7": "2001:660:4406:593:3:0::3d",
-      "kavlan-8": "2001:660:4406:594:3:0::3d",
-      "kavlan-9": "2001:660:4406:595:3:0::3d"
+      "kavlan-1": "2001:660:4406:580:3::3d",
+      "kavlan-11": "2001:660:4406:1a0:503::3d",
+      "kavlan-12": "2001:660:4406:2a0:503::3d",
+      "kavlan-13": "2001:660:4406:4a0:503::3d",
+      "kavlan-14": "2001:660:4406:5a0:503::3d",
+      "kavlan-16": "2001:660:4406:7a0:503::3d",
+      "kavlan-18": "2001:660:4406:8a0:503::3d",
+      "kavlan-2": "2001:660:4406:581:3::3d",
+      "kavlan-20": "2001:660:4406:3a0:503::3d",
+      "kavlan-21": "2001:660:4406:6a0:503::3d",
+      "kavlan-3": "2001:660:4406:582:3::3d",
+      "kavlan-4": "2001:660:4406:590:3::3d",
+      "kavlan-5": "2001:660:4406:591:3::3d",
+      "kavlan-6": "2001:660:4406:592:3::3d",
+      "kavlan-7": "2001:660:4406:593:3::3d",
+      "kavlan-8": "2001:660:4406:594:3::3d",
+      "kavlan-9": "2001:660:4406:595:3::3d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::3d",
-      "kavlan-11": "2001:660:4406:1a0:503:1::3d",
-      "kavlan-12": "2001:660:4406:2a0:503:1::3d",
-      "kavlan-13": "2001:660:4406:4a0:503:1::3d",
-      "kavlan-14": "2001:660:4406:5a0:503:1::3d",
-      "kavlan-16": "2001:660:4406:7a0:503:1::3d",
-      "kavlan-18": "2001:660:4406:8a0:503:1::3d",
-      "kavlan-2": "2001:660:4406:581:3:1::3d",
-      "kavlan-20": "2001:660:4406:3a0:503:1::3d",
-      "kavlan-21": "2001:660:4406:6a0:503:1::3d",
-      "kavlan-3": "2001:660:4406:582:3:1::3d",
-      "kavlan-4": "2001:660:4406:590:3:1::3d",
-      "kavlan-5": "2001:660:4406:591:3:1::3d",
-      "kavlan-6": "2001:660:4406:592:3:1::3d",
-      "kavlan-7": "2001:660:4406:593:3:1::3d",
-      "kavlan-8": "2001:660:4406:594:3:1::3d",
-      "kavlan-9": "2001:660:4406:595:3:1::3d"
+      "kavlan-1": "2001:660:4406:580:3:1:0:3d",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:3d",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:3d",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:3d",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:3d",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:3d",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:3d",
+      "kavlan-2": "2001:660:4406:581:3:1:0:3d",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:3d",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:3d",
+      "kavlan-3": "2001:660:4406:582:3:1:0:3d",
+      "kavlan-4": "2001:660:4406:590:3:1:0:3d",
+      "kavlan-5": "2001:660:4406:591:3:1:0:3d",
+      "kavlan-6": "2001:660:4406:592:3:1:0:3d",
+      "kavlan-7": "2001:660:4406:593:3:1:0:3d",
+      "kavlan-8": "2001:660:4406:594:3:1:0:3d",
+      "kavlan-9": "2001:660:4406:595:3:1:0:3d"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.61",
-      "ip6": "2001:660:4406:500:3:0::3d",
+      "ip6": "2001:660:4406:500:3::3d",
       "kavlan": true,
       "mac": "98:03:9b:b0:98:1a",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.189",
-      "ip6": "2001:660:4406:500:3:1::3d",
+      "ip6": "2001:660:4406:500:3:1:0:3d",
       "kavlan": true,
       "mac": "98:03:9b:b0:98:1b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-62.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-62.json
index 8f12f6ba7f2a78d7fe4d9d8df2a6055d3f3b88c9..f6b8dff890f3400b545149606f5c80c4e9f3d19f 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-62.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-62.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::3e",
-      "kavlan-11": "2001:660:4406:1a0:503:0::3e",
-      "kavlan-12": "2001:660:4406:2a0:503:0::3e",
-      "kavlan-13": "2001:660:4406:4a0:503:0::3e",
-      "kavlan-14": "2001:660:4406:5a0:503:0::3e",
-      "kavlan-16": "2001:660:4406:7a0:503:0::3e",
-      "kavlan-18": "2001:660:4406:8a0:503:0::3e",
-      "kavlan-2": "2001:660:4406:581:3:0::3e",
-      "kavlan-20": "2001:660:4406:3a0:503:0::3e",
-      "kavlan-21": "2001:660:4406:6a0:503:0::3e",
-      "kavlan-3": "2001:660:4406:582:3:0::3e",
-      "kavlan-4": "2001:660:4406:590:3:0::3e",
-      "kavlan-5": "2001:660:4406:591:3:0::3e",
-      "kavlan-6": "2001:660:4406:592:3:0::3e",
-      "kavlan-7": "2001:660:4406:593:3:0::3e",
-      "kavlan-8": "2001:660:4406:594:3:0::3e",
-      "kavlan-9": "2001:660:4406:595:3:0::3e"
+      "kavlan-1": "2001:660:4406:580:3::3e",
+      "kavlan-11": "2001:660:4406:1a0:503::3e",
+      "kavlan-12": "2001:660:4406:2a0:503::3e",
+      "kavlan-13": "2001:660:4406:4a0:503::3e",
+      "kavlan-14": "2001:660:4406:5a0:503::3e",
+      "kavlan-16": "2001:660:4406:7a0:503::3e",
+      "kavlan-18": "2001:660:4406:8a0:503::3e",
+      "kavlan-2": "2001:660:4406:581:3::3e",
+      "kavlan-20": "2001:660:4406:3a0:503::3e",
+      "kavlan-21": "2001:660:4406:6a0:503::3e",
+      "kavlan-3": "2001:660:4406:582:3::3e",
+      "kavlan-4": "2001:660:4406:590:3::3e",
+      "kavlan-5": "2001:660:4406:591:3::3e",
+      "kavlan-6": "2001:660:4406:592:3::3e",
+      "kavlan-7": "2001:660:4406:593:3::3e",
+      "kavlan-8": "2001:660:4406:594:3::3e",
+      "kavlan-9": "2001:660:4406:595:3::3e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::3e",
-      "kavlan-11": "2001:660:4406:1a0:503:1::3e",
-      "kavlan-12": "2001:660:4406:2a0:503:1::3e",
-      "kavlan-13": "2001:660:4406:4a0:503:1::3e",
-      "kavlan-14": "2001:660:4406:5a0:503:1::3e",
-      "kavlan-16": "2001:660:4406:7a0:503:1::3e",
-      "kavlan-18": "2001:660:4406:8a0:503:1::3e",
-      "kavlan-2": "2001:660:4406:581:3:1::3e",
-      "kavlan-20": "2001:660:4406:3a0:503:1::3e",
-      "kavlan-21": "2001:660:4406:6a0:503:1::3e",
-      "kavlan-3": "2001:660:4406:582:3:1::3e",
-      "kavlan-4": "2001:660:4406:590:3:1::3e",
-      "kavlan-5": "2001:660:4406:591:3:1::3e",
-      "kavlan-6": "2001:660:4406:592:3:1::3e",
-      "kavlan-7": "2001:660:4406:593:3:1::3e",
-      "kavlan-8": "2001:660:4406:594:3:1::3e",
-      "kavlan-9": "2001:660:4406:595:3:1::3e"
+      "kavlan-1": "2001:660:4406:580:3:1:0:3e",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:3e",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:3e",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:3e",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:3e",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:3e",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:3e",
+      "kavlan-2": "2001:660:4406:581:3:1:0:3e",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:3e",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:3e",
+      "kavlan-3": "2001:660:4406:582:3:1:0:3e",
+      "kavlan-4": "2001:660:4406:590:3:1:0:3e",
+      "kavlan-5": "2001:660:4406:591:3:1:0:3e",
+      "kavlan-6": "2001:660:4406:592:3:1:0:3e",
+      "kavlan-7": "2001:660:4406:593:3:1:0:3e",
+      "kavlan-8": "2001:660:4406:594:3:1:0:3e",
+      "kavlan-9": "2001:660:4406:595:3:1:0:3e"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.62",
-      "ip6": "2001:660:4406:500:3:0::3e",
+      "ip6": "2001:660:4406:500:3::3e",
       "kavlan": true,
       "mac": "98:03:9b:b0:98:02",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.190",
-      "ip6": "2001:660:4406:500:3:1::3e",
+      "ip6": "2001:660:4406:500:3:1:0:3e",
       "kavlan": true,
       "mac": "98:03:9b:b0:98:03",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-63.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-63.json
index 9903bb7d6084b3b0149c36328a75653673502a2b..4dd346b917a1ddf65c5387014e364c7132dfad97 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-63.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-63.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::3f",
-      "kavlan-11": "2001:660:4406:1a0:503:0::3f",
-      "kavlan-12": "2001:660:4406:2a0:503:0::3f",
-      "kavlan-13": "2001:660:4406:4a0:503:0::3f",
-      "kavlan-14": "2001:660:4406:5a0:503:0::3f",
-      "kavlan-16": "2001:660:4406:7a0:503:0::3f",
-      "kavlan-18": "2001:660:4406:8a0:503:0::3f",
-      "kavlan-2": "2001:660:4406:581:3:0::3f",
-      "kavlan-20": "2001:660:4406:3a0:503:0::3f",
-      "kavlan-21": "2001:660:4406:6a0:503:0::3f",
-      "kavlan-3": "2001:660:4406:582:3:0::3f",
-      "kavlan-4": "2001:660:4406:590:3:0::3f",
-      "kavlan-5": "2001:660:4406:591:3:0::3f",
-      "kavlan-6": "2001:660:4406:592:3:0::3f",
-      "kavlan-7": "2001:660:4406:593:3:0::3f",
-      "kavlan-8": "2001:660:4406:594:3:0::3f",
-      "kavlan-9": "2001:660:4406:595:3:0::3f"
+      "kavlan-1": "2001:660:4406:580:3::3f",
+      "kavlan-11": "2001:660:4406:1a0:503::3f",
+      "kavlan-12": "2001:660:4406:2a0:503::3f",
+      "kavlan-13": "2001:660:4406:4a0:503::3f",
+      "kavlan-14": "2001:660:4406:5a0:503::3f",
+      "kavlan-16": "2001:660:4406:7a0:503::3f",
+      "kavlan-18": "2001:660:4406:8a0:503::3f",
+      "kavlan-2": "2001:660:4406:581:3::3f",
+      "kavlan-20": "2001:660:4406:3a0:503::3f",
+      "kavlan-21": "2001:660:4406:6a0:503::3f",
+      "kavlan-3": "2001:660:4406:582:3::3f",
+      "kavlan-4": "2001:660:4406:590:3::3f",
+      "kavlan-5": "2001:660:4406:591:3::3f",
+      "kavlan-6": "2001:660:4406:592:3::3f",
+      "kavlan-7": "2001:660:4406:593:3::3f",
+      "kavlan-8": "2001:660:4406:594:3::3f",
+      "kavlan-9": "2001:660:4406:595:3::3f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::3f",
-      "kavlan-11": "2001:660:4406:1a0:503:1::3f",
-      "kavlan-12": "2001:660:4406:2a0:503:1::3f",
-      "kavlan-13": "2001:660:4406:4a0:503:1::3f",
-      "kavlan-14": "2001:660:4406:5a0:503:1::3f",
-      "kavlan-16": "2001:660:4406:7a0:503:1::3f",
-      "kavlan-18": "2001:660:4406:8a0:503:1::3f",
-      "kavlan-2": "2001:660:4406:581:3:1::3f",
-      "kavlan-20": "2001:660:4406:3a0:503:1::3f",
-      "kavlan-21": "2001:660:4406:6a0:503:1::3f",
-      "kavlan-3": "2001:660:4406:582:3:1::3f",
-      "kavlan-4": "2001:660:4406:590:3:1::3f",
-      "kavlan-5": "2001:660:4406:591:3:1::3f",
-      "kavlan-6": "2001:660:4406:592:3:1::3f",
-      "kavlan-7": "2001:660:4406:593:3:1::3f",
-      "kavlan-8": "2001:660:4406:594:3:1::3f",
-      "kavlan-9": "2001:660:4406:595:3:1::3f"
+      "kavlan-1": "2001:660:4406:580:3:1:0:3f",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:3f",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:3f",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:3f",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:3f",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:3f",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:3f",
+      "kavlan-2": "2001:660:4406:581:3:1:0:3f",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:3f",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:3f",
+      "kavlan-3": "2001:660:4406:582:3:1:0:3f",
+      "kavlan-4": "2001:660:4406:590:3:1:0:3f",
+      "kavlan-5": "2001:660:4406:591:3:1:0:3f",
+      "kavlan-6": "2001:660:4406:592:3:1:0:3f",
+      "kavlan-7": "2001:660:4406:593:3:1:0:3f",
+      "kavlan-8": "2001:660:4406:594:3:1:0:3f",
+      "kavlan-9": "2001:660:4406:595:3:1:0:3f"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.63",
-      "ip6": "2001:660:4406:500:3:0::3f",
+      "ip6": "2001:660:4406:500:3::3f",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:66",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.191",
-      "ip6": "2001:660:4406:500:3:1::3f",
+      "ip6": "2001:660:4406:500:3:1:0:3f",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:67",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-64.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-64.json
index 34a02f1a3d33aeeaa8fa23999e2ab8e047938b14..27bbb306e6b3a8f331da44597d0095d1b93bddb0 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-64.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-64.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::40",
-      "kavlan-11": "2001:660:4406:1a0:503:0::40",
-      "kavlan-12": "2001:660:4406:2a0:503:0::40",
-      "kavlan-13": "2001:660:4406:4a0:503:0::40",
-      "kavlan-14": "2001:660:4406:5a0:503:0::40",
-      "kavlan-16": "2001:660:4406:7a0:503:0::40",
-      "kavlan-18": "2001:660:4406:8a0:503:0::40",
-      "kavlan-2": "2001:660:4406:581:3:0::40",
-      "kavlan-20": "2001:660:4406:3a0:503:0::40",
-      "kavlan-21": "2001:660:4406:6a0:503:0::40",
-      "kavlan-3": "2001:660:4406:582:3:0::40",
-      "kavlan-4": "2001:660:4406:590:3:0::40",
-      "kavlan-5": "2001:660:4406:591:3:0::40",
-      "kavlan-6": "2001:660:4406:592:3:0::40",
-      "kavlan-7": "2001:660:4406:593:3:0::40",
-      "kavlan-8": "2001:660:4406:594:3:0::40",
-      "kavlan-9": "2001:660:4406:595:3:0::40"
+      "kavlan-1": "2001:660:4406:580:3::40",
+      "kavlan-11": "2001:660:4406:1a0:503::40",
+      "kavlan-12": "2001:660:4406:2a0:503::40",
+      "kavlan-13": "2001:660:4406:4a0:503::40",
+      "kavlan-14": "2001:660:4406:5a0:503::40",
+      "kavlan-16": "2001:660:4406:7a0:503::40",
+      "kavlan-18": "2001:660:4406:8a0:503::40",
+      "kavlan-2": "2001:660:4406:581:3::40",
+      "kavlan-20": "2001:660:4406:3a0:503::40",
+      "kavlan-21": "2001:660:4406:6a0:503::40",
+      "kavlan-3": "2001:660:4406:582:3::40",
+      "kavlan-4": "2001:660:4406:590:3::40",
+      "kavlan-5": "2001:660:4406:591:3::40",
+      "kavlan-6": "2001:660:4406:592:3::40",
+      "kavlan-7": "2001:660:4406:593:3::40",
+      "kavlan-8": "2001:660:4406:594:3::40",
+      "kavlan-9": "2001:660:4406:595:3::40"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::40",
-      "kavlan-11": "2001:660:4406:1a0:503:1::40",
-      "kavlan-12": "2001:660:4406:2a0:503:1::40",
-      "kavlan-13": "2001:660:4406:4a0:503:1::40",
-      "kavlan-14": "2001:660:4406:5a0:503:1::40",
-      "kavlan-16": "2001:660:4406:7a0:503:1::40",
-      "kavlan-18": "2001:660:4406:8a0:503:1::40",
-      "kavlan-2": "2001:660:4406:581:3:1::40",
-      "kavlan-20": "2001:660:4406:3a0:503:1::40",
-      "kavlan-21": "2001:660:4406:6a0:503:1::40",
-      "kavlan-3": "2001:660:4406:582:3:1::40",
-      "kavlan-4": "2001:660:4406:590:3:1::40",
-      "kavlan-5": "2001:660:4406:591:3:1::40",
-      "kavlan-6": "2001:660:4406:592:3:1::40",
-      "kavlan-7": "2001:660:4406:593:3:1::40",
-      "kavlan-8": "2001:660:4406:594:3:1::40",
-      "kavlan-9": "2001:660:4406:595:3:1::40"
+      "kavlan-1": "2001:660:4406:580:3:1:0:40",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:40",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:40",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:40",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:40",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:40",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:40",
+      "kavlan-2": "2001:660:4406:581:3:1:0:40",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:40",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:40",
+      "kavlan-3": "2001:660:4406:582:3:1:0:40",
+      "kavlan-4": "2001:660:4406:590:3:1:0:40",
+      "kavlan-5": "2001:660:4406:591:3:1:0:40",
+      "kavlan-6": "2001:660:4406:592:3:1:0:40",
+      "kavlan-7": "2001:660:4406:593:3:1:0:40",
+      "kavlan-8": "2001:660:4406:594:3:1:0:40",
+      "kavlan-9": "2001:660:4406:595:3:1:0:40"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.64",
-      "ip6": "2001:660:4406:500:3:0::40",
+      "ip6": "2001:660:4406:500:3::40",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:86",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.192",
-      "ip6": "2001:660:4406:500:3:1::40",
+      "ip6": "2001:660:4406:500:3:1:0:40",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:87",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-65.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-65.json
index 06dc943ccb1ae174295964bd886eb47004ab4ccc..5c23006d30bb61f001c701a0ac2607d66250e65a 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-65.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-65.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::41",
-      "kavlan-11": "2001:660:4406:1a0:503:0::41",
-      "kavlan-12": "2001:660:4406:2a0:503:0::41",
-      "kavlan-13": "2001:660:4406:4a0:503:0::41",
-      "kavlan-14": "2001:660:4406:5a0:503:0::41",
-      "kavlan-16": "2001:660:4406:7a0:503:0::41",
-      "kavlan-18": "2001:660:4406:8a0:503:0::41",
-      "kavlan-2": "2001:660:4406:581:3:0::41",
-      "kavlan-20": "2001:660:4406:3a0:503:0::41",
-      "kavlan-21": "2001:660:4406:6a0:503:0::41",
-      "kavlan-3": "2001:660:4406:582:3:0::41",
-      "kavlan-4": "2001:660:4406:590:3:0::41",
-      "kavlan-5": "2001:660:4406:591:3:0::41",
-      "kavlan-6": "2001:660:4406:592:3:0::41",
-      "kavlan-7": "2001:660:4406:593:3:0::41",
-      "kavlan-8": "2001:660:4406:594:3:0::41",
-      "kavlan-9": "2001:660:4406:595:3:0::41"
+      "kavlan-1": "2001:660:4406:580:3::41",
+      "kavlan-11": "2001:660:4406:1a0:503::41",
+      "kavlan-12": "2001:660:4406:2a0:503::41",
+      "kavlan-13": "2001:660:4406:4a0:503::41",
+      "kavlan-14": "2001:660:4406:5a0:503::41",
+      "kavlan-16": "2001:660:4406:7a0:503::41",
+      "kavlan-18": "2001:660:4406:8a0:503::41",
+      "kavlan-2": "2001:660:4406:581:3::41",
+      "kavlan-20": "2001:660:4406:3a0:503::41",
+      "kavlan-21": "2001:660:4406:6a0:503::41",
+      "kavlan-3": "2001:660:4406:582:3::41",
+      "kavlan-4": "2001:660:4406:590:3::41",
+      "kavlan-5": "2001:660:4406:591:3::41",
+      "kavlan-6": "2001:660:4406:592:3::41",
+      "kavlan-7": "2001:660:4406:593:3::41",
+      "kavlan-8": "2001:660:4406:594:3::41",
+      "kavlan-9": "2001:660:4406:595:3::41"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::41",
-      "kavlan-11": "2001:660:4406:1a0:503:1::41",
-      "kavlan-12": "2001:660:4406:2a0:503:1::41",
-      "kavlan-13": "2001:660:4406:4a0:503:1::41",
-      "kavlan-14": "2001:660:4406:5a0:503:1::41",
-      "kavlan-16": "2001:660:4406:7a0:503:1::41",
-      "kavlan-18": "2001:660:4406:8a0:503:1::41",
-      "kavlan-2": "2001:660:4406:581:3:1::41",
-      "kavlan-20": "2001:660:4406:3a0:503:1::41",
-      "kavlan-21": "2001:660:4406:6a0:503:1::41",
-      "kavlan-3": "2001:660:4406:582:3:1::41",
-      "kavlan-4": "2001:660:4406:590:3:1::41",
-      "kavlan-5": "2001:660:4406:591:3:1::41",
-      "kavlan-6": "2001:660:4406:592:3:1::41",
-      "kavlan-7": "2001:660:4406:593:3:1::41",
-      "kavlan-8": "2001:660:4406:594:3:1::41",
-      "kavlan-9": "2001:660:4406:595:3:1::41"
+      "kavlan-1": "2001:660:4406:580:3:1:0:41",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:41",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:41",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:41",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:41",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:41",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:41",
+      "kavlan-2": "2001:660:4406:581:3:1:0:41",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:41",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:41",
+      "kavlan-3": "2001:660:4406:582:3:1:0:41",
+      "kavlan-4": "2001:660:4406:590:3:1:0:41",
+      "kavlan-5": "2001:660:4406:591:3:1:0:41",
+      "kavlan-6": "2001:660:4406:592:3:1:0:41",
+      "kavlan-7": "2001:660:4406:593:3:1:0:41",
+      "kavlan-8": "2001:660:4406:594:3:1:0:41",
+      "kavlan-9": "2001:660:4406:595:3:1:0:41"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.65",
-      "ip6": "2001:660:4406:500:3:0::41",
+      "ip6": "2001:660:4406:500:3::41",
       "kavlan": true,
       "mac": "98:03:9b:b0:b5:de",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.193",
-      "ip6": "2001:660:4406:500:3:1::41",
+      "ip6": "2001:660:4406:500:3:1:0:41",
       "kavlan": true,
       "mac": "98:03:9b:b0:b5:df",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-66.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-66.json
index 30d010f627f683bd24b062e4be8085308a5edd79..b4206b9d280002ebc8ba4c41b0b89142e8c9279c 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-66.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-66.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::42",
-      "kavlan-11": "2001:660:4406:1a0:503:0::42",
-      "kavlan-12": "2001:660:4406:2a0:503:0::42",
-      "kavlan-13": "2001:660:4406:4a0:503:0::42",
-      "kavlan-14": "2001:660:4406:5a0:503:0::42",
-      "kavlan-16": "2001:660:4406:7a0:503:0::42",
-      "kavlan-18": "2001:660:4406:8a0:503:0::42",
-      "kavlan-2": "2001:660:4406:581:3:0::42",
-      "kavlan-20": "2001:660:4406:3a0:503:0::42",
-      "kavlan-21": "2001:660:4406:6a0:503:0::42",
-      "kavlan-3": "2001:660:4406:582:3:0::42",
-      "kavlan-4": "2001:660:4406:590:3:0::42",
-      "kavlan-5": "2001:660:4406:591:3:0::42",
-      "kavlan-6": "2001:660:4406:592:3:0::42",
-      "kavlan-7": "2001:660:4406:593:3:0::42",
-      "kavlan-8": "2001:660:4406:594:3:0::42",
-      "kavlan-9": "2001:660:4406:595:3:0::42"
+      "kavlan-1": "2001:660:4406:580:3::42",
+      "kavlan-11": "2001:660:4406:1a0:503::42",
+      "kavlan-12": "2001:660:4406:2a0:503::42",
+      "kavlan-13": "2001:660:4406:4a0:503::42",
+      "kavlan-14": "2001:660:4406:5a0:503::42",
+      "kavlan-16": "2001:660:4406:7a0:503::42",
+      "kavlan-18": "2001:660:4406:8a0:503::42",
+      "kavlan-2": "2001:660:4406:581:3::42",
+      "kavlan-20": "2001:660:4406:3a0:503::42",
+      "kavlan-21": "2001:660:4406:6a0:503::42",
+      "kavlan-3": "2001:660:4406:582:3::42",
+      "kavlan-4": "2001:660:4406:590:3::42",
+      "kavlan-5": "2001:660:4406:591:3::42",
+      "kavlan-6": "2001:660:4406:592:3::42",
+      "kavlan-7": "2001:660:4406:593:3::42",
+      "kavlan-8": "2001:660:4406:594:3::42",
+      "kavlan-9": "2001:660:4406:595:3::42"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::42",
-      "kavlan-11": "2001:660:4406:1a0:503:1::42",
-      "kavlan-12": "2001:660:4406:2a0:503:1::42",
-      "kavlan-13": "2001:660:4406:4a0:503:1::42",
-      "kavlan-14": "2001:660:4406:5a0:503:1::42",
-      "kavlan-16": "2001:660:4406:7a0:503:1::42",
-      "kavlan-18": "2001:660:4406:8a0:503:1::42",
-      "kavlan-2": "2001:660:4406:581:3:1::42",
-      "kavlan-20": "2001:660:4406:3a0:503:1::42",
-      "kavlan-21": "2001:660:4406:6a0:503:1::42",
-      "kavlan-3": "2001:660:4406:582:3:1::42",
-      "kavlan-4": "2001:660:4406:590:3:1::42",
-      "kavlan-5": "2001:660:4406:591:3:1::42",
-      "kavlan-6": "2001:660:4406:592:3:1::42",
-      "kavlan-7": "2001:660:4406:593:3:1::42",
-      "kavlan-8": "2001:660:4406:594:3:1::42",
-      "kavlan-9": "2001:660:4406:595:3:1::42"
+      "kavlan-1": "2001:660:4406:580:3:1:0:42",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:42",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:42",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:42",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:42",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:42",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:42",
+      "kavlan-2": "2001:660:4406:581:3:1:0:42",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:42",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:42",
+      "kavlan-3": "2001:660:4406:582:3:1:0:42",
+      "kavlan-4": "2001:660:4406:590:3:1:0:42",
+      "kavlan-5": "2001:660:4406:591:3:1:0:42",
+      "kavlan-6": "2001:660:4406:592:3:1:0:42",
+      "kavlan-7": "2001:660:4406:593:3:1:0:42",
+      "kavlan-8": "2001:660:4406:594:3:1:0:42",
+      "kavlan-9": "2001:660:4406:595:3:1:0:42"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.66",
-      "ip6": "2001:660:4406:500:3:0::42",
+      "ip6": "2001:660:4406:500:3::42",
       "kavlan": true,
       "mac": "98:03:9b:b0:c6:1e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.194",
-      "ip6": "2001:660:4406:500:3:1::42",
+      "ip6": "2001:660:4406:500:3:1:0:42",
       "kavlan": true,
       "mac": "98:03:9b:b0:c6:1f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-67.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-67.json
index e6d3524e00656e1bd2049308325d214b5fcd584e..ee3d14a9303c67ae430292f4175ab2c0565b8be0 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-67.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-67.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::43",
-      "kavlan-11": "2001:660:4406:1a0:503:0::43",
-      "kavlan-12": "2001:660:4406:2a0:503:0::43",
-      "kavlan-13": "2001:660:4406:4a0:503:0::43",
-      "kavlan-14": "2001:660:4406:5a0:503:0::43",
-      "kavlan-16": "2001:660:4406:7a0:503:0::43",
-      "kavlan-18": "2001:660:4406:8a0:503:0::43",
-      "kavlan-2": "2001:660:4406:581:3:0::43",
-      "kavlan-20": "2001:660:4406:3a0:503:0::43",
-      "kavlan-21": "2001:660:4406:6a0:503:0::43",
-      "kavlan-3": "2001:660:4406:582:3:0::43",
-      "kavlan-4": "2001:660:4406:590:3:0::43",
-      "kavlan-5": "2001:660:4406:591:3:0::43",
-      "kavlan-6": "2001:660:4406:592:3:0::43",
-      "kavlan-7": "2001:660:4406:593:3:0::43",
-      "kavlan-8": "2001:660:4406:594:3:0::43",
-      "kavlan-9": "2001:660:4406:595:3:0::43"
+      "kavlan-1": "2001:660:4406:580:3::43",
+      "kavlan-11": "2001:660:4406:1a0:503::43",
+      "kavlan-12": "2001:660:4406:2a0:503::43",
+      "kavlan-13": "2001:660:4406:4a0:503::43",
+      "kavlan-14": "2001:660:4406:5a0:503::43",
+      "kavlan-16": "2001:660:4406:7a0:503::43",
+      "kavlan-18": "2001:660:4406:8a0:503::43",
+      "kavlan-2": "2001:660:4406:581:3::43",
+      "kavlan-20": "2001:660:4406:3a0:503::43",
+      "kavlan-21": "2001:660:4406:6a0:503::43",
+      "kavlan-3": "2001:660:4406:582:3::43",
+      "kavlan-4": "2001:660:4406:590:3::43",
+      "kavlan-5": "2001:660:4406:591:3::43",
+      "kavlan-6": "2001:660:4406:592:3::43",
+      "kavlan-7": "2001:660:4406:593:3::43",
+      "kavlan-8": "2001:660:4406:594:3::43",
+      "kavlan-9": "2001:660:4406:595:3::43"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::43",
-      "kavlan-11": "2001:660:4406:1a0:503:1::43",
-      "kavlan-12": "2001:660:4406:2a0:503:1::43",
-      "kavlan-13": "2001:660:4406:4a0:503:1::43",
-      "kavlan-14": "2001:660:4406:5a0:503:1::43",
-      "kavlan-16": "2001:660:4406:7a0:503:1::43",
-      "kavlan-18": "2001:660:4406:8a0:503:1::43",
-      "kavlan-2": "2001:660:4406:581:3:1::43",
-      "kavlan-20": "2001:660:4406:3a0:503:1::43",
-      "kavlan-21": "2001:660:4406:6a0:503:1::43",
-      "kavlan-3": "2001:660:4406:582:3:1::43",
-      "kavlan-4": "2001:660:4406:590:3:1::43",
-      "kavlan-5": "2001:660:4406:591:3:1::43",
-      "kavlan-6": "2001:660:4406:592:3:1::43",
-      "kavlan-7": "2001:660:4406:593:3:1::43",
-      "kavlan-8": "2001:660:4406:594:3:1::43",
-      "kavlan-9": "2001:660:4406:595:3:1::43"
+      "kavlan-1": "2001:660:4406:580:3:1:0:43",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:43",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:43",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:43",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:43",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:43",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:43",
+      "kavlan-2": "2001:660:4406:581:3:1:0:43",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:43",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:43",
+      "kavlan-3": "2001:660:4406:582:3:1:0:43",
+      "kavlan-4": "2001:660:4406:590:3:1:0:43",
+      "kavlan-5": "2001:660:4406:591:3:1:0:43",
+      "kavlan-6": "2001:660:4406:592:3:1:0:43",
+      "kavlan-7": "2001:660:4406:593:3:1:0:43",
+      "kavlan-8": "2001:660:4406:594:3:1:0:43",
+      "kavlan-9": "2001:660:4406:595:3:1:0:43"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.67",
-      "ip6": "2001:660:4406:500:3:0::43",
+      "ip6": "2001:660:4406:500:3::43",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:1e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.195",
-      "ip6": "2001:660:4406:500:3:1::43",
+      "ip6": "2001:660:4406:500:3:1:0:43",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:1f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-68.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-68.json
index f39faf52fc9400463af68d382bca35c6cd2dc48d..efda0d33b80482f946c171a4ca2e0c74c9505094 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-68.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-68.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::44",
-      "kavlan-11": "2001:660:4406:1a0:503:0::44",
-      "kavlan-12": "2001:660:4406:2a0:503:0::44",
-      "kavlan-13": "2001:660:4406:4a0:503:0::44",
-      "kavlan-14": "2001:660:4406:5a0:503:0::44",
-      "kavlan-16": "2001:660:4406:7a0:503:0::44",
-      "kavlan-18": "2001:660:4406:8a0:503:0::44",
-      "kavlan-2": "2001:660:4406:581:3:0::44",
-      "kavlan-20": "2001:660:4406:3a0:503:0::44",
-      "kavlan-21": "2001:660:4406:6a0:503:0::44",
-      "kavlan-3": "2001:660:4406:582:3:0::44",
-      "kavlan-4": "2001:660:4406:590:3:0::44",
-      "kavlan-5": "2001:660:4406:591:3:0::44",
-      "kavlan-6": "2001:660:4406:592:3:0::44",
-      "kavlan-7": "2001:660:4406:593:3:0::44",
-      "kavlan-8": "2001:660:4406:594:3:0::44",
-      "kavlan-9": "2001:660:4406:595:3:0::44"
+      "kavlan-1": "2001:660:4406:580:3::44",
+      "kavlan-11": "2001:660:4406:1a0:503::44",
+      "kavlan-12": "2001:660:4406:2a0:503::44",
+      "kavlan-13": "2001:660:4406:4a0:503::44",
+      "kavlan-14": "2001:660:4406:5a0:503::44",
+      "kavlan-16": "2001:660:4406:7a0:503::44",
+      "kavlan-18": "2001:660:4406:8a0:503::44",
+      "kavlan-2": "2001:660:4406:581:3::44",
+      "kavlan-20": "2001:660:4406:3a0:503::44",
+      "kavlan-21": "2001:660:4406:6a0:503::44",
+      "kavlan-3": "2001:660:4406:582:3::44",
+      "kavlan-4": "2001:660:4406:590:3::44",
+      "kavlan-5": "2001:660:4406:591:3::44",
+      "kavlan-6": "2001:660:4406:592:3::44",
+      "kavlan-7": "2001:660:4406:593:3::44",
+      "kavlan-8": "2001:660:4406:594:3::44",
+      "kavlan-9": "2001:660:4406:595:3::44"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::44",
-      "kavlan-11": "2001:660:4406:1a0:503:1::44",
-      "kavlan-12": "2001:660:4406:2a0:503:1::44",
-      "kavlan-13": "2001:660:4406:4a0:503:1::44",
-      "kavlan-14": "2001:660:4406:5a0:503:1::44",
-      "kavlan-16": "2001:660:4406:7a0:503:1::44",
-      "kavlan-18": "2001:660:4406:8a0:503:1::44",
-      "kavlan-2": "2001:660:4406:581:3:1::44",
-      "kavlan-20": "2001:660:4406:3a0:503:1::44",
-      "kavlan-21": "2001:660:4406:6a0:503:1::44",
-      "kavlan-3": "2001:660:4406:582:3:1::44",
-      "kavlan-4": "2001:660:4406:590:3:1::44",
-      "kavlan-5": "2001:660:4406:591:3:1::44",
-      "kavlan-6": "2001:660:4406:592:3:1::44",
-      "kavlan-7": "2001:660:4406:593:3:1::44",
-      "kavlan-8": "2001:660:4406:594:3:1::44",
-      "kavlan-9": "2001:660:4406:595:3:1::44"
+      "kavlan-1": "2001:660:4406:580:3:1:0:44",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:44",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:44",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:44",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:44",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:44",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:44",
+      "kavlan-2": "2001:660:4406:581:3:1:0:44",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:44",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:44",
+      "kavlan-3": "2001:660:4406:582:3:1:0:44",
+      "kavlan-4": "2001:660:4406:590:3:1:0:44",
+      "kavlan-5": "2001:660:4406:591:3:1:0:44",
+      "kavlan-6": "2001:660:4406:592:3:1:0:44",
+      "kavlan-7": "2001:660:4406:593:3:1:0:44",
+      "kavlan-8": "2001:660:4406:594:3:1:0:44",
+      "kavlan-9": "2001:660:4406:595:3:1:0:44"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.68",
-      "ip6": "2001:660:4406:500:3:0::44",
+      "ip6": "2001:660:4406:500:3::44",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:5e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.196",
-      "ip6": "2001:660:4406:500:3:1::44",
+      "ip6": "2001:660:4406:500:3:1:0:44",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:5f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-69.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-69.json
index 7d668519bebac16968951520d7d42ebfd039b32a..ac90a6935aae247b2ccb55c5aef2481a24c75fdc 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-69.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-69.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::45",
-      "kavlan-11": "2001:660:4406:1a0:503:0::45",
-      "kavlan-12": "2001:660:4406:2a0:503:0::45",
-      "kavlan-13": "2001:660:4406:4a0:503:0::45",
-      "kavlan-14": "2001:660:4406:5a0:503:0::45",
-      "kavlan-16": "2001:660:4406:7a0:503:0::45",
-      "kavlan-18": "2001:660:4406:8a0:503:0::45",
-      "kavlan-2": "2001:660:4406:581:3:0::45",
-      "kavlan-20": "2001:660:4406:3a0:503:0::45",
-      "kavlan-21": "2001:660:4406:6a0:503:0::45",
-      "kavlan-3": "2001:660:4406:582:3:0::45",
-      "kavlan-4": "2001:660:4406:590:3:0::45",
-      "kavlan-5": "2001:660:4406:591:3:0::45",
-      "kavlan-6": "2001:660:4406:592:3:0::45",
-      "kavlan-7": "2001:660:4406:593:3:0::45",
-      "kavlan-8": "2001:660:4406:594:3:0::45",
-      "kavlan-9": "2001:660:4406:595:3:0::45"
+      "kavlan-1": "2001:660:4406:580:3::45",
+      "kavlan-11": "2001:660:4406:1a0:503::45",
+      "kavlan-12": "2001:660:4406:2a0:503::45",
+      "kavlan-13": "2001:660:4406:4a0:503::45",
+      "kavlan-14": "2001:660:4406:5a0:503::45",
+      "kavlan-16": "2001:660:4406:7a0:503::45",
+      "kavlan-18": "2001:660:4406:8a0:503::45",
+      "kavlan-2": "2001:660:4406:581:3::45",
+      "kavlan-20": "2001:660:4406:3a0:503::45",
+      "kavlan-21": "2001:660:4406:6a0:503::45",
+      "kavlan-3": "2001:660:4406:582:3::45",
+      "kavlan-4": "2001:660:4406:590:3::45",
+      "kavlan-5": "2001:660:4406:591:3::45",
+      "kavlan-6": "2001:660:4406:592:3::45",
+      "kavlan-7": "2001:660:4406:593:3::45",
+      "kavlan-8": "2001:660:4406:594:3::45",
+      "kavlan-9": "2001:660:4406:595:3::45"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::45",
-      "kavlan-11": "2001:660:4406:1a0:503:1::45",
-      "kavlan-12": "2001:660:4406:2a0:503:1::45",
-      "kavlan-13": "2001:660:4406:4a0:503:1::45",
-      "kavlan-14": "2001:660:4406:5a0:503:1::45",
-      "kavlan-16": "2001:660:4406:7a0:503:1::45",
-      "kavlan-18": "2001:660:4406:8a0:503:1::45",
-      "kavlan-2": "2001:660:4406:581:3:1::45",
-      "kavlan-20": "2001:660:4406:3a0:503:1::45",
-      "kavlan-21": "2001:660:4406:6a0:503:1::45",
-      "kavlan-3": "2001:660:4406:582:3:1::45",
-      "kavlan-4": "2001:660:4406:590:3:1::45",
-      "kavlan-5": "2001:660:4406:591:3:1::45",
-      "kavlan-6": "2001:660:4406:592:3:1::45",
-      "kavlan-7": "2001:660:4406:593:3:1::45",
-      "kavlan-8": "2001:660:4406:594:3:1::45",
-      "kavlan-9": "2001:660:4406:595:3:1::45"
+      "kavlan-1": "2001:660:4406:580:3:1:0:45",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:45",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:45",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:45",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:45",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:45",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:45",
+      "kavlan-2": "2001:660:4406:581:3:1:0:45",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:45",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:45",
+      "kavlan-3": "2001:660:4406:582:3:1:0:45",
+      "kavlan-4": "2001:660:4406:590:3:1:0:45",
+      "kavlan-5": "2001:660:4406:591:3:1:0:45",
+      "kavlan-6": "2001:660:4406:592:3:1:0:45",
+      "kavlan-7": "2001:660:4406:593:3:1:0:45",
+      "kavlan-8": "2001:660:4406:594:3:1:0:45",
+      "kavlan-9": "2001:660:4406:595:3:1:0:45"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.69",
-      "ip6": "2001:660:4406:500:3:0::45",
+      "ip6": "2001:660:4406:500:3::45",
       "kavlan": true,
       "mac": "98:03:9b:b0:c9:a6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.197",
-      "ip6": "2001:660:4406:500:3:1::45",
+      "ip6": "2001:660:4406:500:3:1:0:45",
       "kavlan": true,
       "mac": "98:03:9b:b0:c9:a7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-7.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-7.json
index cfc5d21bf45a188c33677bcc86fde4baba6f772e..1c49b46263b2b7f65dae41cb936b2bcbf0a6f66a 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-7.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-7.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::7",
-      "kavlan-11": "2001:660:4406:1a0:503:0::7",
-      "kavlan-12": "2001:660:4406:2a0:503:0::7",
-      "kavlan-13": "2001:660:4406:4a0:503:0::7",
-      "kavlan-14": "2001:660:4406:5a0:503:0::7",
-      "kavlan-16": "2001:660:4406:7a0:503:0::7",
-      "kavlan-18": "2001:660:4406:8a0:503:0::7",
-      "kavlan-2": "2001:660:4406:581:3:0::7",
-      "kavlan-20": "2001:660:4406:3a0:503:0::7",
-      "kavlan-21": "2001:660:4406:6a0:503:0::7",
-      "kavlan-3": "2001:660:4406:582:3:0::7",
-      "kavlan-4": "2001:660:4406:590:3:0::7",
-      "kavlan-5": "2001:660:4406:591:3:0::7",
-      "kavlan-6": "2001:660:4406:592:3:0::7",
-      "kavlan-7": "2001:660:4406:593:3:0::7",
-      "kavlan-8": "2001:660:4406:594:3:0::7",
-      "kavlan-9": "2001:660:4406:595:3:0::7"
+      "kavlan-1": "2001:660:4406:580:3::7",
+      "kavlan-11": "2001:660:4406:1a0:503::7",
+      "kavlan-12": "2001:660:4406:2a0:503::7",
+      "kavlan-13": "2001:660:4406:4a0:503::7",
+      "kavlan-14": "2001:660:4406:5a0:503::7",
+      "kavlan-16": "2001:660:4406:7a0:503::7",
+      "kavlan-18": "2001:660:4406:8a0:503::7",
+      "kavlan-2": "2001:660:4406:581:3::7",
+      "kavlan-20": "2001:660:4406:3a0:503::7",
+      "kavlan-21": "2001:660:4406:6a0:503::7",
+      "kavlan-3": "2001:660:4406:582:3::7",
+      "kavlan-4": "2001:660:4406:590:3::7",
+      "kavlan-5": "2001:660:4406:591:3::7",
+      "kavlan-6": "2001:660:4406:592:3::7",
+      "kavlan-7": "2001:660:4406:593:3::7",
+      "kavlan-8": "2001:660:4406:594:3::7",
+      "kavlan-9": "2001:660:4406:595:3::7"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::7",
-      "kavlan-11": "2001:660:4406:1a0:503:1::7",
-      "kavlan-12": "2001:660:4406:2a0:503:1::7",
-      "kavlan-13": "2001:660:4406:4a0:503:1::7",
-      "kavlan-14": "2001:660:4406:5a0:503:1::7",
-      "kavlan-16": "2001:660:4406:7a0:503:1::7",
-      "kavlan-18": "2001:660:4406:8a0:503:1::7",
-      "kavlan-2": "2001:660:4406:581:3:1::7",
-      "kavlan-20": "2001:660:4406:3a0:503:1::7",
-      "kavlan-21": "2001:660:4406:6a0:503:1::7",
-      "kavlan-3": "2001:660:4406:582:3:1::7",
-      "kavlan-4": "2001:660:4406:590:3:1::7",
-      "kavlan-5": "2001:660:4406:591:3:1::7",
-      "kavlan-6": "2001:660:4406:592:3:1::7",
-      "kavlan-7": "2001:660:4406:593:3:1::7",
-      "kavlan-8": "2001:660:4406:594:3:1::7",
-      "kavlan-9": "2001:660:4406:595:3:1::7"
+      "kavlan-1": "2001:660:4406:580:3:1:0:7",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:7",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:7",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:7",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:7",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:7",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:7",
+      "kavlan-2": "2001:660:4406:581:3:1:0:7",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:7",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:7",
+      "kavlan-3": "2001:660:4406:582:3:1:0:7",
+      "kavlan-4": "2001:660:4406:590:3:1:0:7",
+      "kavlan-5": "2001:660:4406:591:3:1:0:7",
+      "kavlan-6": "2001:660:4406:592:3:1:0:7",
+      "kavlan-7": "2001:660:4406:593:3:1:0:7",
+      "kavlan-8": "2001:660:4406:594:3:1:0:7",
+      "kavlan-9": "2001:660:4406:595:3:1:0:7"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.7",
-      "ip6": "2001:660:4406:500:3:0::7",
+      "ip6": "2001:660:4406:500:3::7",
       "kavlan": true,
       "mac": "98:03:9b:b0:bf:fe",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.135",
-      "ip6": "2001:660:4406:500:3:1::7",
+      "ip6": "2001:660:4406:500:3:1:0:7",
       "kavlan": true,
       "mac": "98:03:9b:b0:bf:ff",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-70.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-70.json
index e0e3943afd325de7350b09395111cba3aadf3619..956ac13f8552a6a74d846969b7c5dc6deb061e3a 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-70.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-70.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::46",
-      "kavlan-11": "2001:660:4406:1a0:503:0::46",
-      "kavlan-12": "2001:660:4406:2a0:503:0::46",
-      "kavlan-13": "2001:660:4406:4a0:503:0::46",
-      "kavlan-14": "2001:660:4406:5a0:503:0::46",
-      "kavlan-16": "2001:660:4406:7a0:503:0::46",
-      "kavlan-18": "2001:660:4406:8a0:503:0::46",
-      "kavlan-2": "2001:660:4406:581:3:0::46",
-      "kavlan-20": "2001:660:4406:3a0:503:0::46",
-      "kavlan-21": "2001:660:4406:6a0:503:0::46",
-      "kavlan-3": "2001:660:4406:582:3:0::46",
-      "kavlan-4": "2001:660:4406:590:3:0::46",
-      "kavlan-5": "2001:660:4406:591:3:0::46",
-      "kavlan-6": "2001:660:4406:592:3:0::46",
-      "kavlan-7": "2001:660:4406:593:3:0::46",
-      "kavlan-8": "2001:660:4406:594:3:0::46",
-      "kavlan-9": "2001:660:4406:595:3:0::46"
+      "kavlan-1": "2001:660:4406:580:3::46",
+      "kavlan-11": "2001:660:4406:1a0:503::46",
+      "kavlan-12": "2001:660:4406:2a0:503::46",
+      "kavlan-13": "2001:660:4406:4a0:503::46",
+      "kavlan-14": "2001:660:4406:5a0:503::46",
+      "kavlan-16": "2001:660:4406:7a0:503::46",
+      "kavlan-18": "2001:660:4406:8a0:503::46",
+      "kavlan-2": "2001:660:4406:581:3::46",
+      "kavlan-20": "2001:660:4406:3a0:503::46",
+      "kavlan-21": "2001:660:4406:6a0:503::46",
+      "kavlan-3": "2001:660:4406:582:3::46",
+      "kavlan-4": "2001:660:4406:590:3::46",
+      "kavlan-5": "2001:660:4406:591:3::46",
+      "kavlan-6": "2001:660:4406:592:3::46",
+      "kavlan-7": "2001:660:4406:593:3::46",
+      "kavlan-8": "2001:660:4406:594:3::46",
+      "kavlan-9": "2001:660:4406:595:3::46"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::46",
-      "kavlan-11": "2001:660:4406:1a0:503:1::46",
-      "kavlan-12": "2001:660:4406:2a0:503:1::46",
-      "kavlan-13": "2001:660:4406:4a0:503:1::46",
-      "kavlan-14": "2001:660:4406:5a0:503:1::46",
-      "kavlan-16": "2001:660:4406:7a0:503:1::46",
-      "kavlan-18": "2001:660:4406:8a0:503:1::46",
-      "kavlan-2": "2001:660:4406:581:3:1::46",
-      "kavlan-20": "2001:660:4406:3a0:503:1::46",
-      "kavlan-21": "2001:660:4406:6a0:503:1::46",
-      "kavlan-3": "2001:660:4406:582:3:1::46",
-      "kavlan-4": "2001:660:4406:590:3:1::46",
-      "kavlan-5": "2001:660:4406:591:3:1::46",
-      "kavlan-6": "2001:660:4406:592:3:1::46",
-      "kavlan-7": "2001:660:4406:593:3:1::46",
-      "kavlan-8": "2001:660:4406:594:3:1::46",
-      "kavlan-9": "2001:660:4406:595:3:1::46"
+      "kavlan-1": "2001:660:4406:580:3:1:0:46",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:46",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:46",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:46",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:46",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:46",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:46",
+      "kavlan-2": "2001:660:4406:581:3:1:0:46",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:46",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:46",
+      "kavlan-3": "2001:660:4406:582:3:1:0:46",
+      "kavlan-4": "2001:660:4406:590:3:1:0:46",
+      "kavlan-5": "2001:660:4406:591:3:1:0:46",
+      "kavlan-6": "2001:660:4406:592:3:1:0:46",
+      "kavlan-7": "2001:660:4406:593:3:1:0:46",
+      "kavlan-8": "2001:660:4406:594:3:1:0:46",
+      "kavlan-9": "2001:660:4406:595:3:1:0:46"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.70",
-      "ip6": "2001:660:4406:500:3:0::46",
+      "ip6": "2001:660:4406:500:3::46",
       "kavlan": true,
       "mac": "98:03:9b:b0:ca:7e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.198",
-      "ip6": "2001:660:4406:500:3:1::46",
+      "ip6": "2001:660:4406:500:3:1:0:46",
       "kavlan": true,
       "mac": "98:03:9b:b0:ca:7f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-71.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-71.json
index 803123e90e633a887f6f13db5e2d75c399057270..fd7515f36aa6e9762ad12d379e93199c23704a6e 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-71.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-71.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::47",
-      "kavlan-11": "2001:660:4406:1a0:503:0::47",
-      "kavlan-12": "2001:660:4406:2a0:503:0::47",
-      "kavlan-13": "2001:660:4406:4a0:503:0::47",
-      "kavlan-14": "2001:660:4406:5a0:503:0::47",
-      "kavlan-16": "2001:660:4406:7a0:503:0::47",
-      "kavlan-18": "2001:660:4406:8a0:503:0::47",
-      "kavlan-2": "2001:660:4406:581:3:0::47",
-      "kavlan-20": "2001:660:4406:3a0:503:0::47",
-      "kavlan-21": "2001:660:4406:6a0:503:0::47",
-      "kavlan-3": "2001:660:4406:582:3:0::47",
-      "kavlan-4": "2001:660:4406:590:3:0::47",
-      "kavlan-5": "2001:660:4406:591:3:0::47",
-      "kavlan-6": "2001:660:4406:592:3:0::47",
-      "kavlan-7": "2001:660:4406:593:3:0::47",
-      "kavlan-8": "2001:660:4406:594:3:0::47",
-      "kavlan-9": "2001:660:4406:595:3:0::47"
+      "kavlan-1": "2001:660:4406:580:3::47",
+      "kavlan-11": "2001:660:4406:1a0:503::47",
+      "kavlan-12": "2001:660:4406:2a0:503::47",
+      "kavlan-13": "2001:660:4406:4a0:503::47",
+      "kavlan-14": "2001:660:4406:5a0:503::47",
+      "kavlan-16": "2001:660:4406:7a0:503::47",
+      "kavlan-18": "2001:660:4406:8a0:503::47",
+      "kavlan-2": "2001:660:4406:581:3::47",
+      "kavlan-20": "2001:660:4406:3a0:503::47",
+      "kavlan-21": "2001:660:4406:6a0:503::47",
+      "kavlan-3": "2001:660:4406:582:3::47",
+      "kavlan-4": "2001:660:4406:590:3::47",
+      "kavlan-5": "2001:660:4406:591:3::47",
+      "kavlan-6": "2001:660:4406:592:3::47",
+      "kavlan-7": "2001:660:4406:593:3::47",
+      "kavlan-8": "2001:660:4406:594:3::47",
+      "kavlan-9": "2001:660:4406:595:3::47"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::47",
-      "kavlan-11": "2001:660:4406:1a0:503:1::47",
-      "kavlan-12": "2001:660:4406:2a0:503:1::47",
-      "kavlan-13": "2001:660:4406:4a0:503:1::47",
-      "kavlan-14": "2001:660:4406:5a0:503:1::47",
-      "kavlan-16": "2001:660:4406:7a0:503:1::47",
-      "kavlan-18": "2001:660:4406:8a0:503:1::47",
-      "kavlan-2": "2001:660:4406:581:3:1::47",
-      "kavlan-20": "2001:660:4406:3a0:503:1::47",
-      "kavlan-21": "2001:660:4406:6a0:503:1::47",
-      "kavlan-3": "2001:660:4406:582:3:1::47",
-      "kavlan-4": "2001:660:4406:590:3:1::47",
-      "kavlan-5": "2001:660:4406:591:3:1::47",
-      "kavlan-6": "2001:660:4406:592:3:1::47",
-      "kavlan-7": "2001:660:4406:593:3:1::47",
-      "kavlan-8": "2001:660:4406:594:3:1::47",
-      "kavlan-9": "2001:660:4406:595:3:1::47"
+      "kavlan-1": "2001:660:4406:580:3:1:0:47",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:47",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:47",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:47",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:47",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:47",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:47",
+      "kavlan-2": "2001:660:4406:581:3:1:0:47",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:47",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:47",
+      "kavlan-3": "2001:660:4406:582:3:1:0:47",
+      "kavlan-4": "2001:660:4406:590:3:1:0:47",
+      "kavlan-5": "2001:660:4406:591:3:1:0:47",
+      "kavlan-6": "2001:660:4406:592:3:1:0:47",
+      "kavlan-7": "2001:660:4406:593:3:1:0:47",
+      "kavlan-8": "2001:660:4406:594:3:1:0:47",
+      "kavlan-9": "2001:660:4406:595:3:1:0:47"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.71",
-      "ip6": "2001:660:4406:500:3:0::47",
+      "ip6": "2001:660:4406:500:3::47",
       "kavlan": true,
       "mac": "98:03:9b:b0:98:0a",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.199",
-      "ip6": "2001:660:4406:500:3:1::47",
+      "ip6": "2001:660:4406:500:3:1:0:47",
       "kavlan": true,
       "mac": "98:03:9b:b0:98:0b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-72.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-72.json
index ab8ecf6152354e207b74effc40a5ba6cbe997eab..117bed6e6aedc8a9fbb90a9e198c68284f487512 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-72.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-72.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::48",
-      "kavlan-11": "2001:660:4406:1a0:503:0::48",
-      "kavlan-12": "2001:660:4406:2a0:503:0::48",
-      "kavlan-13": "2001:660:4406:4a0:503:0::48",
-      "kavlan-14": "2001:660:4406:5a0:503:0::48",
-      "kavlan-16": "2001:660:4406:7a0:503:0::48",
-      "kavlan-18": "2001:660:4406:8a0:503:0::48",
-      "kavlan-2": "2001:660:4406:581:3:0::48",
-      "kavlan-20": "2001:660:4406:3a0:503:0::48",
-      "kavlan-21": "2001:660:4406:6a0:503:0::48",
-      "kavlan-3": "2001:660:4406:582:3:0::48",
-      "kavlan-4": "2001:660:4406:590:3:0::48",
-      "kavlan-5": "2001:660:4406:591:3:0::48",
-      "kavlan-6": "2001:660:4406:592:3:0::48",
-      "kavlan-7": "2001:660:4406:593:3:0::48",
-      "kavlan-8": "2001:660:4406:594:3:0::48",
-      "kavlan-9": "2001:660:4406:595:3:0::48"
+      "kavlan-1": "2001:660:4406:580:3::48",
+      "kavlan-11": "2001:660:4406:1a0:503::48",
+      "kavlan-12": "2001:660:4406:2a0:503::48",
+      "kavlan-13": "2001:660:4406:4a0:503::48",
+      "kavlan-14": "2001:660:4406:5a0:503::48",
+      "kavlan-16": "2001:660:4406:7a0:503::48",
+      "kavlan-18": "2001:660:4406:8a0:503::48",
+      "kavlan-2": "2001:660:4406:581:3::48",
+      "kavlan-20": "2001:660:4406:3a0:503::48",
+      "kavlan-21": "2001:660:4406:6a0:503::48",
+      "kavlan-3": "2001:660:4406:582:3::48",
+      "kavlan-4": "2001:660:4406:590:3::48",
+      "kavlan-5": "2001:660:4406:591:3::48",
+      "kavlan-6": "2001:660:4406:592:3::48",
+      "kavlan-7": "2001:660:4406:593:3::48",
+      "kavlan-8": "2001:660:4406:594:3::48",
+      "kavlan-9": "2001:660:4406:595:3::48"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::48",
-      "kavlan-11": "2001:660:4406:1a0:503:1::48",
-      "kavlan-12": "2001:660:4406:2a0:503:1::48",
-      "kavlan-13": "2001:660:4406:4a0:503:1::48",
-      "kavlan-14": "2001:660:4406:5a0:503:1::48",
-      "kavlan-16": "2001:660:4406:7a0:503:1::48",
-      "kavlan-18": "2001:660:4406:8a0:503:1::48",
-      "kavlan-2": "2001:660:4406:581:3:1::48",
-      "kavlan-20": "2001:660:4406:3a0:503:1::48",
-      "kavlan-21": "2001:660:4406:6a0:503:1::48",
-      "kavlan-3": "2001:660:4406:582:3:1::48",
-      "kavlan-4": "2001:660:4406:590:3:1::48",
-      "kavlan-5": "2001:660:4406:591:3:1::48",
-      "kavlan-6": "2001:660:4406:592:3:1::48",
-      "kavlan-7": "2001:660:4406:593:3:1::48",
-      "kavlan-8": "2001:660:4406:594:3:1::48",
-      "kavlan-9": "2001:660:4406:595:3:1::48"
+      "kavlan-1": "2001:660:4406:580:3:1:0:48",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:48",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:48",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:48",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:48",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:48",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:48",
+      "kavlan-2": "2001:660:4406:581:3:1:0:48",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:48",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:48",
+      "kavlan-3": "2001:660:4406:582:3:1:0:48",
+      "kavlan-4": "2001:660:4406:590:3:1:0:48",
+      "kavlan-5": "2001:660:4406:591:3:1:0:48",
+      "kavlan-6": "2001:660:4406:592:3:1:0:48",
+      "kavlan-7": "2001:660:4406:593:3:1:0:48",
+      "kavlan-8": "2001:660:4406:594:3:1:0:48",
+      "kavlan-9": "2001:660:4406:595:3:1:0:48"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.72",
-      "ip6": "2001:660:4406:500:3:0::48",
+      "ip6": "2001:660:4406:500:3::48",
       "kavlan": true,
       "mac": "98:03:9b:b0:bf:7e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.200",
-      "ip6": "2001:660:4406:500:3:1::48",
+      "ip6": "2001:660:4406:500:3:1:0:48",
       "kavlan": true,
       "mac": "98:03:9b:b0:bf:7f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-73.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-73.json
index 0d7e21317e1528f074b7aad11762b531d8b300f6..2524a51f98532d57129f8184377d3100fffe5ba1 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-73.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-73.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::49",
-      "kavlan-11": "2001:660:4406:1a0:503:0::49",
-      "kavlan-12": "2001:660:4406:2a0:503:0::49",
-      "kavlan-13": "2001:660:4406:4a0:503:0::49",
-      "kavlan-14": "2001:660:4406:5a0:503:0::49",
-      "kavlan-16": "2001:660:4406:7a0:503:0::49",
-      "kavlan-18": "2001:660:4406:8a0:503:0::49",
-      "kavlan-2": "2001:660:4406:581:3:0::49",
-      "kavlan-20": "2001:660:4406:3a0:503:0::49",
-      "kavlan-21": "2001:660:4406:6a0:503:0::49",
-      "kavlan-3": "2001:660:4406:582:3:0::49",
-      "kavlan-4": "2001:660:4406:590:3:0::49",
-      "kavlan-5": "2001:660:4406:591:3:0::49",
-      "kavlan-6": "2001:660:4406:592:3:0::49",
-      "kavlan-7": "2001:660:4406:593:3:0::49",
-      "kavlan-8": "2001:660:4406:594:3:0::49",
-      "kavlan-9": "2001:660:4406:595:3:0::49"
+      "kavlan-1": "2001:660:4406:580:3::49",
+      "kavlan-11": "2001:660:4406:1a0:503::49",
+      "kavlan-12": "2001:660:4406:2a0:503::49",
+      "kavlan-13": "2001:660:4406:4a0:503::49",
+      "kavlan-14": "2001:660:4406:5a0:503::49",
+      "kavlan-16": "2001:660:4406:7a0:503::49",
+      "kavlan-18": "2001:660:4406:8a0:503::49",
+      "kavlan-2": "2001:660:4406:581:3::49",
+      "kavlan-20": "2001:660:4406:3a0:503::49",
+      "kavlan-21": "2001:660:4406:6a0:503::49",
+      "kavlan-3": "2001:660:4406:582:3::49",
+      "kavlan-4": "2001:660:4406:590:3::49",
+      "kavlan-5": "2001:660:4406:591:3::49",
+      "kavlan-6": "2001:660:4406:592:3::49",
+      "kavlan-7": "2001:660:4406:593:3::49",
+      "kavlan-8": "2001:660:4406:594:3::49",
+      "kavlan-9": "2001:660:4406:595:3::49"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::49",
-      "kavlan-11": "2001:660:4406:1a0:503:1::49",
-      "kavlan-12": "2001:660:4406:2a0:503:1::49",
-      "kavlan-13": "2001:660:4406:4a0:503:1::49",
-      "kavlan-14": "2001:660:4406:5a0:503:1::49",
-      "kavlan-16": "2001:660:4406:7a0:503:1::49",
-      "kavlan-18": "2001:660:4406:8a0:503:1::49",
-      "kavlan-2": "2001:660:4406:581:3:1::49",
-      "kavlan-20": "2001:660:4406:3a0:503:1::49",
-      "kavlan-21": "2001:660:4406:6a0:503:1::49",
-      "kavlan-3": "2001:660:4406:582:3:1::49",
-      "kavlan-4": "2001:660:4406:590:3:1::49",
-      "kavlan-5": "2001:660:4406:591:3:1::49",
-      "kavlan-6": "2001:660:4406:592:3:1::49",
-      "kavlan-7": "2001:660:4406:593:3:1::49",
-      "kavlan-8": "2001:660:4406:594:3:1::49",
-      "kavlan-9": "2001:660:4406:595:3:1::49"
+      "kavlan-1": "2001:660:4406:580:3:1:0:49",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:49",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:49",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:49",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:49",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:49",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:49",
+      "kavlan-2": "2001:660:4406:581:3:1:0:49",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:49",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:49",
+      "kavlan-3": "2001:660:4406:582:3:1:0:49",
+      "kavlan-4": "2001:660:4406:590:3:1:0:49",
+      "kavlan-5": "2001:660:4406:591:3:1:0:49",
+      "kavlan-6": "2001:660:4406:592:3:1:0:49",
+      "kavlan-7": "2001:660:4406:593:3:1:0:49",
+      "kavlan-8": "2001:660:4406:594:3:1:0:49",
+      "kavlan-9": "2001:660:4406:595:3:1:0:49"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.73",
-      "ip6": "2001:660:4406:500:3:0::49",
+      "ip6": "2001:660:4406:500:3::49",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:6a",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.201",
-      "ip6": "2001:660:4406:500:3:1::49",
+      "ip6": "2001:660:4406:500:3:1:0:49",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:6b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-74.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-74.json
index 964ca0da7d465ed588224e53e6183a5f12db8de7..321c484316c171b67fc86ce3874755b4fa8e4448 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-74.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-74.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::4a",
-      "kavlan-11": "2001:660:4406:1a0:503:0::4a",
-      "kavlan-12": "2001:660:4406:2a0:503:0::4a",
-      "kavlan-13": "2001:660:4406:4a0:503:0::4a",
-      "kavlan-14": "2001:660:4406:5a0:503:0::4a",
-      "kavlan-16": "2001:660:4406:7a0:503:0::4a",
-      "kavlan-18": "2001:660:4406:8a0:503:0::4a",
-      "kavlan-2": "2001:660:4406:581:3:0::4a",
-      "kavlan-20": "2001:660:4406:3a0:503:0::4a",
-      "kavlan-21": "2001:660:4406:6a0:503:0::4a",
-      "kavlan-3": "2001:660:4406:582:3:0::4a",
-      "kavlan-4": "2001:660:4406:590:3:0::4a",
-      "kavlan-5": "2001:660:4406:591:3:0::4a",
-      "kavlan-6": "2001:660:4406:592:3:0::4a",
-      "kavlan-7": "2001:660:4406:593:3:0::4a",
-      "kavlan-8": "2001:660:4406:594:3:0::4a",
-      "kavlan-9": "2001:660:4406:595:3:0::4a"
+      "kavlan-1": "2001:660:4406:580:3::4a",
+      "kavlan-11": "2001:660:4406:1a0:503::4a",
+      "kavlan-12": "2001:660:4406:2a0:503::4a",
+      "kavlan-13": "2001:660:4406:4a0:503::4a",
+      "kavlan-14": "2001:660:4406:5a0:503::4a",
+      "kavlan-16": "2001:660:4406:7a0:503::4a",
+      "kavlan-18": "2001:660:4406:8a0:503::4a",
+      "kavlan-2": "2001:660:4406:581:3::4a",
+      "kavlan-20": "2001:660:4406:3a0:503::4a",
+      "kavlan-21": "2001:660:4406:6a0:503::4a",
+      "kavlan-3": "2001:660:4406:582:3::4a",
+      "kavlan-4": "2001:660:4406:590:3::4a",
+      "kavlan-5": "2001:660:4406:591:3::4a",
+      "kavlan-6": "2001:660:4406:592:3::4a",
+      "kavlan-7": "2001:660:4406:593:3::4a",
+      "kavlan-8": "2001:660:4406:594:3::4a",
+      "kavlan-9": "2001:660:4406:595:3::4a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::4a",
-      "kavlan-11": "2001:660:4406:1a0:503:1::4a",
-      "kavlan-12": "2001:660:4406:2a0:503:1::4a",
-      "kavlan-13": "2001:660:4406:4a0:503:1::4a",
-      "kavlan-14": "2001:660:4406:5a0:503:1::4a",
-      "kavlan-16": "2001:660:4406:7a0:503:1::4a",
-      "kavlan-18": "2001:660:4406:8a0:503:1::4a",
-      "kavlan-2": "2001:660:4406:581:3:1::4a",
-      "kavlan-20": "2001:660:4406:3a0:503:1::4a",
-      "kavlan-21": "2001:660:4406:6a0:503:1::4a",
-      "kavlan-3": "2001:660:4406:582:3:1::4a",
-      "kavlan-4": "2001:660:4406:590:3:1::4a",
-      "kavlan-5": "2001:660:4406:591:3:1::4a",
-      "kavlan-6": "2001:660:4406:592:3:1::4a",
-      "kavlan-7": "2001:660:4406:593:3:1::4a",
-      "kavlan-8": "2001:660:4406:594:3:1::4a",
-      "kavlan-9": "2001:660:4406:595:3:1::4a"
+      "kavlan-1": "2001:660:4406:580:3:1:0:4a",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:4a",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:4a",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:4a",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:4a",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:4a",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:4a",
+      "kavlan-2": "2001:660:4406:581:3:1:0:4a",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:4a",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:4a",
+      "kavlan-3": "2001:660:4406:582:3:1:0:4a",
+      "kavlan-4": "2001:660:4406:590:3:1:0:4a",
+      "kavlan-5": "2001:660:4406:591:3:1:0:4a",
+      "kavlan-6": "2001:660:4406:592:3:1:0:4a",
+      "kavlan-7": "2001:660:4406:593:3:1:0:4a",
+      "kavlan-8": "2001:660:4406:594:3:1:0:4a",
+      "kavlan-9": "2001:660:4406:595:3:1:0:4a"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.74",
-      "ip6": "2001:660:4406:500:3:0::4a",
+      "ip6": "2001:660:4406:500:3::4a",
       "kavlan": true,
       "mac": "98:03:9b:b0:c0:a6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.202",
-      "ip6": "2001:660:4406:500:3:1::4a",
+      "ip6": "2001:660:4406:500:3:1:0:4a",
       "kavlan": true,
       "mac": "98:03:9b:b0:c0:a7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-75.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-75.json
index d4da0816a57d66a2bfb31e83c673e822b98fc585..07665ccdcf22fa94daf122de08328a97a2f08f39 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-75.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-75.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::4b",
-      "kavlan-11": "2001:660:4406:1a0:503:0::4b",
-      "kavlan-12": "2001:660:4406:2a0:503:0::4b",
-      "kavlan-13": "2001:660:4406:4a0:503:0::4b",
-      "kavlan-14": "2001:660:4406:5a0:503:0::4b",
-      "kavlan-16": "2001:660:4406:7a0:503:0::4b",
-      "kavlan-18": "2001:660:4406:8a0:503:0::4b",
-      "kavlan-2": "2001:660:4406:581:3:0::4b",
-      "kavlan-20": "2001:660:4406:3a0:503:0::4b",
-      "kavlan-21": "2001:660:4406:6a0:503:0::4b",
-      "kavlan-3": "2001:660:4406:582:3:0::4b",
-      "kavlan-4": "2001:660:4406:590:3:0::4b",
-      "kavlan-5": "2001:660:4406:591:3:0::4b",
-      "kavlan-6": "2001:660:4406:592:3:0::4b",
-      "kavlan-7": "2001:660:4406:593:3:0::4b",
-      "kavlan-8": "2001:660:4406:594:3:0::4b",
-      "kavlan-9": "2001:660:4406:595:3:0::4b"
+      "kavlan-1": "2001:660:4406:580:3::4b",
+      "kavlan-11": "2001:660:4406:1a0:503::4b",
+      "kavlan-12": "2001:660:4406:2a0:503::4b",
+      "kavlan-13": "2001:660:4406:4a0:503::4b",
+      "kavlan-14": "2001:660:4406:5a0:503::4b",
+      "kavlan-16": "2001:660:4406:7a0:503::4b",
+      "kavlan-18": "2001:660:4406:8a0:503::4b",
+      "kavlan-2": "2001:660:4406:581:3::4b",
+      "kavlan-20": "2001:660:4406:3a0:503::4b",
+      "kavlan-21": "2001:660:4406:6a0:503::4b",
+      "kavlan-3": "2001:660:4406:582:3::4b",
+      "kavlan-4": "2001:660:4406:590:3::4b",
+      "kavlan-5": "2001:660:4406:591:3::4b",
+      "kavlan-6": "2001:660:4406:592:3::4b",
+      "kavlan-7": "2001:660:4406:593:3::4b",
+      "kavlan-8": "2001:660:4406:594:3::4b",
+      "kavlan-9": "2001:660:4406:595:3::4b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::4b",
-      "kavlan-11": "2001:660:4406:1a0:503:1::4b",
-      "kavlan-12": "2001:660:4406:2a0:503:1::4b",
-      "kavlan-13": "2001:660:4406:4a0:503:1::4b",
-      "kavlan-14": "2001:660:4406:5a0:503:1::4b",
-      "kavlan-16": "2001:660:4406:7a0:503:1::4b",
-      "kavlan-18": "2001:660:4406:8a0:503:1::4b",
-      "kavlan-2": "2001:660:4406:581:3:1::4b",
-      "kavlan-20": "2001:660:4406:3a0:503:1::4b",
-      "kavlan-21": "2001:660:4406:6a0:503:1::4b",
-      "kavlan-3": "2001:660:4406:582:3:1::4b",
-      "kavlan-4": "2001:660:4406:590:3:1::4b",
-      "kavlan-5": "2001:660:4406:591:3:1::4b",
-      "kavlan-6": "2001:660:4406:592:3:1::4b",
-      "kavlan-7": "2001:660:4406:593:3:1::4b",
-      "kavlan-8": "2001:660:4406:594:3:1::4b",
-      "kavlan-9": "2001:660:4406:595:3:1::4b"
+      "kavlan-1": "2001:660:4406:580:3:1:0:4b",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:4b",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:4b",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:4b",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:4b",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:4b",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:4b",
+      "kavlan-2": "2001:660:4406:581:3:1:0:4b",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:4b",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:4b",
+      "kavlan-3": "2001:660:4406:582:3:1:0:4b",
+      "kavlan-4": "2001:660:4406:590:3:1:0:4b",
+      "kavlan-5": "2001:660:4406:591:3:1:0:4b",
+      "kavlan-6": "2001:660:4406:592:3:1:0:4b",
+      "kavlan-7": "2001:660:4406:593:3:1:0:4b",
+      "kavlan-8": "2001:660:4406:594:3:1:0:4b",
+      "kavlan-9": "2001:660:4406:595:3:1:0:4b"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.75",
-      "ip6": "2001:660:4406:500:3:0::4b",
+      "ip6": "2001:660:4406:500:3::4b",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:26",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.203",
-      "ip6": "2001:660:4406:500:3:1::4b",
+      "ip6": "2001:660:4406:500:3:1:0:4b",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:27",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-76.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-76.json
index bc23c76bdf0c983997a27164ca00ed52a8b878ea..1a86757052c82eb06b410d839b06b88775440e91 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-76.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-76.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::4c",
-      "kavlan-11": "2001:660:4406:1a0:503:0::4c",
-      "kavlan-12": "2001:660:4406:2a0:503:0::4c",
-      "kavlan-13": "2001:660:4406:4a0:503:0::4c",
-      "kavlan-14": "2001:660:4406:5a0:503:0::4c",
-      "kavlan-16": "2001:660:4406:7a0:503:0::4c",
-      "kavlan-18": "2001:660:4406:8a0:503:0::4c",
-      "kavlan-2": "2001:660:4406:581:3:0::4c",
-      "kavlan-20": "2001:660:4406:3a0:503:0::4c",
-      "kavlan-21": "2001:660:4406:6a0:503:0::4c",
-      "kavlan-3": "2001:660:4406:582:3:0::4c",
-      "kavlan-4": "2001:660:4406:590:3:0::4c",
-      "kavlan-5": "2001:660:4406:591:3:0::4c",
-      "kavlan-6": "2001:660:4406:592:3:0::4c",
-      "kavlan-7": "2001:660:4406:593:3:0::4c",
-      "kavlan-8": "2001:660:4406:594:3:0::4c",
-      "kavlan-9": "2001:660:4406:595:3:0::4c"
+      "kavlan-1": "2001:660:4406:580:3::4c",
+      "kavlan-11": "2001:660:4406:1a0:503::4c",
+      "kavlan-12": "2001:660:4406:2a0:503::4c",
+      "kavlan-13": "2001:660:4406:4a0:503::4c",
+      "kavlan-14": "2001:660:4406:5a0:503::4c",
+      "kavlan-16": "2001:660:4406:7a0:503::4c",
+      "kavlan-18": "2001:660:4406:8a0:503::4c",
+      "kavlan-2": "2001:660:4406:581:3::4c",
+      "kavlan-20": "2001:660:4406:3a0:503::4c",
+      "kavlan-21": "2001:660:4406:6a0:503::4c",
+      "kavlan-3": "2001:660:4406:582:3::4c",
+      "kavlan-4": "2001:660:4406:590:3::4c",
+      "kavlan-5": "2001:660:4406:591:3::4c",
+      "kavlan-6": "2001:660:4406:592:3::4c",
+      "kavlan-7": "2001:660:4406:593:3::4c",
+      "kavlan-8": "2001:660:4406:594:3::4c",
+      "kavlan-9": "2001:660:4406:595:3::4c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::4c",
-      "kavlan-11": "2001:660:4406:1a0:503:1::4c",
-      "kavlan-12": "2001:660:4406:2a0:503:1::4c",
-      "kavlan-13": "2001:660:4406:4a0:503:1::4c",
-      "kavlan-14": "2001:660:4406:5a0:503:1::4c",
-      "kavlan-16": "2001:660:4406:7a0:503:1::4c",
-      "kavlan-18": "2001:660:4406:8a0:503:1::4c",
-      "kavlan-2": "2001:660:4406:581:3:1::4c",
-      "kavlan-20": "2001:660:4406:3a0:503:1::4c",
-      "kavlan-21": "2001:660:4406:6a0:503:1::4c",
-      "kavlan-3": "2001:660:4406:582:3:1::4c",
-      "kavlan-4": "2001:660:4406:590:3:1::4c",
-      "kavlan-5": "2001:660:4406:591:3:1::4c",
-      "kavlan-6": "2001:660:4406:592:3:1::4c",
-      "kavlan-7": "2001:660:4406:593:3:1::4c",
-      "kavlan-8": "2001:660:4406:594:3:1::4c",
-      "kavlan-9": "2001:660:4406:595:3:1::4c"
+      "kavlan-1": "2001:660:4406:580:3:1:0:4c",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:4c",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:4c",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:4c",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:4c",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:4c",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:4c",
+      "kavlan-2": "2001:660:4406:581:3:1:0:4c",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:4c",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:4c",
+      "kavlan-3": "2001:660:4406:582:3:1:0:4c",
+      "kavlan-4": "2001:660:4406:590:3:1:0:4c",
+      "kavlan-5": "2001:660:4406:591:3:1:0:4c",
+      "kavlan-6": "2001:660:4406:592:3:1:0:4c",
+      "kavlan-7": "2001:660:4406:593:3:1:0:4c",
+      "kavlan-8": "2001:660:4406:594:3:1:0:4c",
+      "kavlan-9": "2001:660:4406:595:3:1:0:4c"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.76",
-      "ip6": "2001:660:4406:500:3:0::4c",
+      "ip6": "2001:660:4406:500:3::4c",
       "kavlan": true,
       "mac": "98:03:9b:b0:63:82",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.204",
-      "ip6": "2001:660:4406:500:3:1::4c",
+      "ip6": "2001:660:4406:500:3:1:0:4c",
       "kavlan": true,
       "mac": "98:03:9b:b0:63:83",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-77.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-77.json
index 628c464743aaf0d1b68c26e658de1ab841bbcb42..3afff89c31cb37847603b7216c5f3dd719029eeb 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-77.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-77.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::4d",
-      "kavlan-11": "2001:660:4406:1a0:503:0::4d",
-      "kavlan-12": "2001:660:4406:2a0:503:0::4d",
-      "kavlan-13": "2001:660:4406:4a0:503:0::4d",
-      "kavlan-14": "2001:660:4406:5a0:503:0::4d",
-      "kavlan-16": "2001:660:4406:7a0:503:0::4d",
-      "kavlan-18": "2001:660:4406:8a0:503:0::4d",
-      "kavlan-2": "2001:660:4406:581:3:0::4d",
-      "kavlan-20": "2001:660:4406:3a0:503:0::4d",
-      "kavlan-21": "2001:660:4406:6a0:503:0::4d",
-      "kavlan-3": "2001:660:4406:582:3:0::4d",
-      "kavlan-4": "2001:660:4406:590:3:0::4d",
-      "kavlan-5": "2001:660:4406:591:3:0::4d",
-      "kavlan-6": "2001:660:4406:592:3:0::4d",
-      "kavlan-7": "2001:660:4406:593:3:0::4d",
-      "kavlan-8": "2001:660:4406:594:3:0::4d",
-      "kavlan-9": "2001:660:4406:595:3:0::4d"
+      "kavlan-1": "2001:660:4406:580:3::4d",
+      "kavlan-11": "2001:660:4406:1a0:503::4d",
+      "kavlan-12": "2001:660:4406:2a0:503::4d",
+      "kavlan-13": "2001:660:4406:4a0:503::4d",
+      "kavlan-14": "2001:660:4406:5a0:503::4d",
+      "kavlan-16": "2001:660:4406:7a0:503::4d",
+      "kavlan-18": "2001:660:4406:8a0:503::4d",
+      "kavlan-2": "2001:660:4406:581:3::4d",
+      "kavlan-20": "2001:660:4406:3a0:503::4d",
+      "kavlan-21": "2001:660:4406:6a0:503::4d",
+      "kavlan-3": "2001:660:4406:582:3::4d",
+      "kavlan-4": "2001:660:4406:590:3::4d",
+      "kavlan-5": "2001:660:4406:591:3::4d",
+      "kavlan-6": "2001:660:4406:592:3::4d",
+      "kavlan-7": "2001:660:4406:593:3::4d",
+      "kavlan-8": "2001:660:4406:594:3::4d",
+      "kavlan-9": "2001:660:4406:595:3::4d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::4d",
-      "kavlan-11": "2001:660:4406:1a0:503:1::4d",
-      "kavlan-12": "2001:660:4406:2a0:503:1::4d",
-      "kavlan-13": "2001:660:4406:4a0:503:1::4d",
-      "kavlan-14": "2001:660:4406:5a0:503:1::4d",
-      "kavlan-16": "2001:660:4406:7a0:503:1::4d",
-      "kavlan-18": "2001:660:4406:8a0:503:1::4d",
-      "kavlan-2": "2001:660:4406:581:3:1::4d",
-      "kavlan-20": "2001:660:4406:3a0:503:1::4d",
-      "kavlan-21": "2001:660:4406:6a0:503:1::4d",
-      "kavlan-3": "2001:660:4406:582:3:1::4d",
-      "kavlan-4": "2001:660:4406:590:3:1::4d",
-      "kavlan-5": "2001:660:4406:591:3:1::4d",
-      "kavlan-6": "2001:660:4406:592:3:1::4d",
-      "kavlan-7": "2001:660:4406:593:3:1::4d",
-      "kavlan-8": "2001:660:4406:594:3:1::4d",
-      "kavlan-9": "2001:660:4406:595:3:1::4d"
+      "kavlan-1": "2001:660:4406:580:3:1:0:4d",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:4d",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:4d",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:4d",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:4d",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:4d",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:4d",
+      "kavlan-2": "2001:660:4406:581:3:1:0:4d",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:4d",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:4d",
+      "kavlan-3": "2001:660:4406:582:3:1:0:4d",
+      "kavlan-4": "2001:660:4406:590:3:1:0:4d",
+      "kavlan-5": "2001:660:4406:591:3:1:0:4d",
+      "kavlan-6": "2001:660:4406:592:3:1:0:4d",
+      "kavlan-7": "2001:660:4406:593:3:1:0:4d",
+      "kavlan-8": "2001:660:4406:594:3:1:0:4d",
+      "kavlan-9": "2001:660:4406:595:3:1:0:4d"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.77",
-      "ip6": "2001:660:4406:500:3:0::4d",
+      "ip6": "2001:660:4406:500:3::4d",
       "kavlan": true,
       "mac": "98:03:9b:b0:a9:66",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.205",
-      "ip6": "2001:660:4406:500:3:1::4d",
+      "ip6": "2001:660:4406:500:3:1:0:4d",
       "kavlan": true,
       "mac": "98:03:9b:b0:a9:67",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-78.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-78.json
index 4d7e7fd2201c7af8469589f0a98be71e06bde18f..5ae5ada3f0c0dbcd0f12a806f2d2c475fb6e8dd9 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-78.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-78.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::4e",
-      "kavlan-11": "2001:660:4406:1a0:503:0::4e",
-      "kavlan-12": "2001:660:4406:2a0:503:0::4e",
-      "kavlan-13": "2001:660:4406:4a0:503:0::4e",
-      "kavlan-14": "2001:660:4406:5a0:503:0::4e",
-      "kavlan-16": "2001:660:4406:7a0:503:0::4e",
-      "kavlan-18": "2001:660:4406:8a0:503:0::4e",
-      "kavlan-2": "2001:660:4406:581:3:0::4e",
-      "kavlan-20": "2001:660:4406:3a0:503:0::4e",
-      "kavlan-21": "2001:660:4406:6a0:503:0::4e",
-      "kavlan-3": "2001:660:4406:582:3:0::4e",
-      "kavlan-4": "2001:660:4406:590:3:0::4e",
-      "kavlan-5": "2001:660:4406:591:3:0::4e",
-      "kavlan-6": "2001:660:4406:592:3:0::4e",
-      "kavlan-7": "2001:660:4406:593:3:0::4e",
-      "kavlan-8": "2001:660:4406:594:3:0::4e",
-      "kavlan-9": "2001:660:4406:595:3:0::4e"
+      "kavlan-1": "2001:660:4406:580:3::4e",
+      "kavlan-11": "2001:660:4406:1a0:503::4e",
+      "kavlan-12": "2001:660:4406:2a0:503::4e",
+      "kavlan-13": "2001:660:4406:4a0:503::4e",
+      "kavlan-14": "2001:660:4406:5a0:503::4e",
+      "kavlan-16": "2001:660:4406:7a0:503::4e",
+      "kavlan-18": "2001:660:4406:8a0:503::4e",
+      "kavlan-2": "2001:660:4406:581:3::4e",
+      "kavlan-20": "2001:660:4406:3a0:503::4e",
+      "kavlan-21": "2001:660:4406:6a0:503::4e",
+      "kavlan-3": "2001:660:4406:582:3::4e",
+      "kavlan-4": "2001:660:4406:590:3::4e",
+      "kavlan-5": "2001:660:4406:591:3::4e",
+      "kavlan-6": "2001:660:4406:592:3::4e",
+      "kavlan-7": "2001:660:4406:593:3::4e",
+      "kavlan-8": "2001:660:4406:594:3::4e",
+      "kavlan-9": "2001:660:4406:595:3::4e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::4e",
-      "kavlan-11": "2001:660:4406:1a0:503:1::4e",
-      "kavlan-12": "2001:660:4406:2a0:503:1::4e",
-      "kavlan-13": "2001:660:4406:4a0:503:1::4e",
-      "kavlan-14": "2001:660:4406:5a0:503:1::4e",
-      "kavlan-16": "2001:660:4406:7a0:503:1::4e",
-      "kavlan-18": "2001:660:4406:8a0:503:1::4e",
-      "kavlan-2": "2001:660:4406:581:3:1::4e",
-      "kavlan-20": "2001:660:4406:3a0:503:1::4e",
-      "kavlan-21": "2001:660:4406:6a0:503:1::4e",
-      "kavlan-3": "2001:660:4406:582:3:1::4e",
-      "kavlan-4": "2001:660:4406:590:3:1::4e",
-      "kavlan-5": "2001:660:4406:591:3:1::4e",
-      "kavlan-6": "2001:660:4406:592:3:1::4e",
-      "kavlan-7": "2001:660:4406:593:3:1::4e",
-      "kavlan-8": "2001:660:4406:594:3:1::4e",
-      "kavlan-9": "2001:660:4406:595:3:1::4e"
+      "kavlan-1": "2001:660:4406:580:3:1:0:4e",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:4e",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:4e",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:4e",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:4e",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:4e",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:4e",
+      "kavlan-2": "2001:660:4406:581:3:1:0:4e",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:4e",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:4e",
+      "kavlan-3": "2001:660:4406:582:3:1:0:4e",
+      "kavlan-4": "2001:660:4406:590:3:1:0:4e",
+      "kavlan-5": "2001:660:4406:591:3:1:0:4e",
+      "kavlan-6": "2001:660:4406:592:3:1:0:4e",
+      "kavlan-7": "2001:660:4406:593:3:1:0:4e",
+      "kavlan-8": "2001:660:4406:594:3:1:0:4e",
+      "kavlan-9": "2001:660:4406:595:3:1:0:4e"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.78",
-      "ip6": "2001:660:4406:500:3:0::4e",
+      "ip6": "2001:660:4406:500:3::4e",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:4e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.206",
-      "ip6": "2001:660:4406:500:3:1::4e",
+      "ip6": "2001:660:4406:500:3:1:0:4e",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:4f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-79.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-79.json
index 30c7e513f7d31588da419b411806d1f1d9faf572..7028c18e69ee1df03fbb6ad2c9ff4702c8c222ca 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-79.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-79.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::4f",
-      "kavlan-11": "2001:660:4406:1a0:503:0::4f",
-      "kavlan-12": "2001:660:4406:2a0:503:0::4f",
-      "kavlan-13": "2001:660:4406:4a0:503:0::4f",
-      "kavlan-14": "2001:660:4406:5a0:503:0::4f",
-      "kavlan-16": "2001:660:4406:7a0:503:0::4f",
-      "kavlan-18": "2001:660:4406:8a0:503:0::4f",
-      "kavlan-2": "2001:660:4406:581:3:0::4f",
-      "kavlan-20": "2001:660:4406:3a0:503:0::4f",
-      "kavlan-21": "2001:660:4406:6a0:503:0::4f",
-      "kavlan-3": "2001:660:4406:582:3:0::4f",
-      "kavlan-4": "2001:660:4406:590:3:0::4f",
-      "kavlan-5": "2001:660:4406:591:3:0::4f",
-      "kavlan-6": "2001:660:4406:592:3:0::4f",
-      "kavlan-7": "2001:660:4406:593:3:0::4f",
-      "kavlan-8": "2001:660:4406:594:3:0::4f",
-      "kavlan-9": "2001:660:4406:595:3:0::4f"
+      "kavlan-1": "2001:660:4406:580:3::4f",
+      "kavlan-11": "2001:660:4406:1a0:503::4f",
+      "kavlan-12": "2001:660:4406:2a0:503::4f",
+      "kavlan-13": "2001:660:4406:4a0:503::4f",
+      "kavlan-14": "2001:660:4406:5a0:503::4f",
+      "kavlan-16": "2001:660:4406:7a0:503::4f",
+      "kavlan-18": "2001:660:4406:8a0:503::4f",
+      "kavlan-2": "2001:660:4406:581:3::4f",
+      "kavlan-20": "2001:660:4406:3a0:503::4f",
+      "kavlan-21": "2001:660:4406:6a0:503::4f",
+      "kavlan-3": "2001:660:4406:582:3::4f",
+      "kavlan-4": "2001:660:4406:590:3::4f",
+      "kavlan-5": "2001:660:4406:591:3::4f",
+      "kavlan-6": "2001:660:4406:592:3::4f",
+      "kavlan-7": "2001:660:4406:593:3::4f",
+      "kavlan-8": "2001:660:4406:594:3::4f",
+      "kavlan-9": "2001:660:4406:595:3::4f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::4f",
-      "kavlan-11": "2001:660:4406:1a0:503:1::4f",
-      "kavlan-12": "2001:660:4406:2a0:503:1::4f",
-      "kavlan-13": "2001:660:4406:4a0:503:1::4f",
-      "kavlan-14": "2001:660:4406:5a0:503:1::4f",
-      "kavlan-16": "2001:660:4406:7a0:503:1::4f",
-      "kavlan-18": "2001:660:4406:8a0:503:1::4f",
-      "kavlan-2": "2001:660:4406:581:3:1::4f",
-      "kavlan-20": "2001:660:4406:3a0:503:1::4f",
-      "kavlan-21": "2001:660:4406:6a0:503:1::4f",
-      "kavlan-3": "2001:660:4406:582:3:1::4f",
-      "kavlan-4": "2001:660:4406:590:3:1::4f",
-      "kavlan-5": "2001:660:4406:591:3:1::4f",
-      "kavlan-6": "2001:660:4406:592:3:1::4f",
-      "kavlan-7": "2001:660:4406:593:3:1::4f",
-      "kavlan-8": "2001:660:4406:594:3:1::4f",
-      "kavlan-9": "2001:660:4406:595:3:1::4f"
+      "kavlan-1": "2001:660:4406:580:3:1:0:4f",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:4f",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:4f",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:4f",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:4f",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:4f",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:4f",
+      "kavlan-2": "2001:660:4406:581:3:1:0:4f",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:4f",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:4f",
+      "kavlan-3": "2001:660:4406:582:3:1:0:4f",
+      "kavlan-4": "2001:660:4406:590:3:1:0:4f",
+      "kavlan-5": "2001:660:4406:591:3:1:0:4f",
+      "kavlan-6": "2001:660:4406:592:3:1:0:4f",
+      "kavlan-7": "2001:660:4406:593:3:1:0:4f",
+      "kavlan-8": "2001:660:4406:594:3:1:0:4f",
+      "kavlan-9": "2001:660:4406:595:3:1:0:4f"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.79",
-      "ip6": "2001:660:4406:500:3:0::4f",
+      "ip6": "2001:660:4406:500:3::4f",
       "kavlan": true,
       "mac": "98:03:9b:b0:be:de",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.207",
-      "ip6": "2001:660:4406:500:3:1::4f",
+      "ip6": "2001:660:4406:500:3:1:0:4f",
       "kavlan": true,
       "mac": "98:03:9b:b0:be:df",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-8.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-8.json
index 5a7c3c61bce2c0cf778237c01b666178f4f792d8..8fb0964300adf55edaa7d09b0b5b5a643a05c8df 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-8.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-8.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::8",
-      "kavlan-11": "2001:660:4406:1a0:503:0::8",
-      "kavlan-12": "2001:660:4406:2a0:503:0::8",
-      "kavlan-13": "2001:660:4406:4a0:503:0::8",
-      "kavlan-14": "2001:660:4406:5a0:503:0::8",
-      "kavlan-16": "2001:660:4406:7a0:503:0::8",
-      "kavlan-18": "2001:660:4406:8a0:503:0::8",
-      "kavlan-2": "2001:660:4406:581:3:0::8",
-      "kavlan-20": "2001:660:4406:3a0:503:0::8",
-      "kavlan-21": "2001:660:4406:6a0:503:0::8",
-      "kavlan-3": "2001:660:4406:582:3:0::8",
-      "kavlan-4": "2001:660:4406:590:3:0::8",
-      "kavlan-5": "2001:660:4406:591:3:0::8",
-      "kavlan-6": "2001:660:4406:592:3:0::8",
-      "kavlan-7": "2001:660:4406:593:3:0::8",
-      "kavlan-8": "2001:660:4406:594:3:0::8",
-      "kavlan-9": "2001:660:4406:595:3:0::8"
+      "kavlan-1": "2001:660:4406:580:3::8",
+      "kavlan-11": "2001:660:4406:1a0:503::8",
+      "kavlan-12": "2001:660:4406:2a0:503::8",
+      "kavlan-13": "2001:660:4406:4a0:503::8",
+      "kavlan-14": "2001:660:4406:5a0:503::8",
+      "kavlan-16": "2001:660:4406:7a0:503::8",
+      "kavlan-18": "2001:660:4406:8a0:503::8",
+      "kavlan-2": "2001:660:4406:581:3::8",
+      "kavlan-20": "2001:660:4406:3a0:503::8",
+      "kavlan-21": "2001:660:4406:6a0:503::8",
+      "kavlan-3": "2001:660:4406:582:3::8",
+      "kavlan-4": "2001:660:4406:590:3::8",
+      "kavlan-5": "2001:660:4406:591:3::8",
+      "kavlan-6": "2001:660:4406:592:3::8",
+      "kavlan-7": "2001:660:4406:593:3::8",
+      "kavlan-8": "2001:660:4406:594:3::8",
+      "kavlan-9": "2001:660:4406:595:3::8"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::8",
-      "kavlan-11": "2001:660:4406:1a0:503:1::8",
-      "kavlan-12": "2001:660:4406:2a0:503:1::8",
-      "kavlan-13": "2001:660:4406:4a0:503:1::8",
-      "kavlan-14": "2001:660:4406:5a0:503:1::8",
-      "kavlan-16": "2001:660:4406:7a0:503:1::8",
-      "kavlan-18": "2001:660:4406:8a0:503:1::8",
-      "kavlan-2": "2001:660:4406:581:3:1::8",
-      "kavlan-20": "2001:660:4406:3a0:503:1::8",
-      "kavlan-21": "2001:660:4406:6a0:503:1::8",
-      "kavlan-3": "2001:660:4406:582:3:1::8",
-      "kavlan-4": "2001:660:4406:590:3:1::8",
-      "kavlan-5": "2001:660:4406:591:3:1::8",
-      "kavlan-6": "2001:660:4406:592:3:1::8",
-      "kavlan-7": "2001:660:4406:593:3:1::8",
-      "kavlan-8": "2001:660:4406:594:3:1::8",
-      "kavlan-9": "2001:660:4406:595:3:1::8"
+      "kavlan-1": "2001:660:4406:580:3:1:0:8",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:8",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:8",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:8",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:8",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:8",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:8",
+      "kavlan-2": "2001:660:4406:581:3:1:0:8",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:8",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:8",
+      "kavlan-3": "2001:660:4406:582:3:1:0:8",
+      "kavlan-4": "2001:660:4406:590:3:1:0:8",
+      "kavlan-5": "2001:660:4406:591:3:1:0:8",
+      "kavlan-6": "2001:660:4406:592:3:1:0:8",
+      "kavlan-7": "2001:660:4406:593:3:1:0:8",
+      "kavlan-8": "2001:660:4406:594:3:1:0:8",
+      "kavlan-9": "2001:660:4406:595:3:1:0:8"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.8",
-      "ip6": "2001:660:4406:500:3:0::8",
+      "ip6": "2001:660:4406:500:3::8",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:0e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.136",
-      "ip6": "2001:660:4406:500:3:1::8",
+      "ip6": "2001:660:4406:500:3:1:0:8",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:0f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-80.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-80.json
index 09d5507b544bbd06f123ab9ef4ab29d76fc7db59..e3df0c4038eeb7faed88bd897598546f79aee993 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-80.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-80.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::50",
-      "kavlan-11": "2001:660:4406:1a0:503:0::50",
-      "kavlan-12": "2001:660:4406:2a0:503:0::50",
-      "kavlan-13": "2001:660:4406:4a0:503:0::50",
-      "kavlan-14": "2001:660:4406:5a0:503:0::50",
-      "kavlan-16": "2001:660:4406:7a0:503:0::50",
-      "kavlan-18": "2001:660:4406:8a0:503:0::50",
-      "kavlan-2": "2001:660:4406:581:3:0::50",
-      "kavlan-20": "2001:660:4406:3a0:503:0::50",
-      "kavlan-21": "2001:660:4406:6a0:503:0::50",
-      "kavlan-3": "2001:660:4406:582:3:0::50",
-      "kavlan-4": "2001:660:4406:590:3:0::50",
-      "kavlan-5": "2001:660:4406:591:3:0::50",
-      "kavlan-6": "2001:660:4406:592:3:0::50",
-      "kavlan-7": "2001:660:4406:593:3:0::50",
-      "kavlan-8": "2001:660:4406:594:3:0::50",
-      "kavlan-9": "2001:660:4406:595:3:0::50"
+      "kavlan-1": "2001:660:4406:580:3::50",
+      "kavlan-11": "2001:660:4406:1a0:503::50",
+      "kavlan-12": "2001:660:4406:2a0:503::50",
+      "kavlan-13": "2001:660:4406:4a0:503::50",
+      "kavlan-14": "2001:660:4406:5a0:503::50",
+      "kavlan-16": "2001:660:4406:7a0:503::50",
+      "kavlan-18": "2001:660:4406:8a0:503::50",
+      "kavlan-2": "2001:660:4406:581:3::50",
+      "kavlan-20": "2001:660:4406:3a0:503::50",
+      "kavlan-21": "2001:660:4406:6a0:503::50",
+      "kavlan-3": "2001:660:4406:582:3::50",
+      "kavlan-4": "2001:660:4406:590:3::50",
+      "kavlan-5": "2001:660:4406:591:3::50",
+      "kavlan-6": "2001:660:4406:592:3::50",
+      "kavlan-7": "2001:660:4406:593:3::50",
+      "kavlan-8": "2001:660:4406:594:3::50",
+      "kavlan-9": "2001:660:4406:595:3::50"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::50",
-      "kavlan-11": "2001:660:4406:1a0:503:1::50",
-      "kavlan-12": "2001:660:4406:2a0:503:1::50",
-      "kavlan-13": "2001:660:4406:4a0:503:1::50",
-      "kavlan-14": "2001:660:4406:5a0:503:1::50",
-      "kavlan-16": "2001:660:4406:7a0:503:1::50",
-      "kavlan-18": "2001:660:4406:8a0:503:1::50",
-      "kavlan-2": "2001:660:4406:581:3:1::50",
-      "kavlan-20": "2001:660:4406:3a0:503:1::50",
-      "kavlan-21": "2001:660:4406:6a0:503:1::50",
-      "kavlan-3": "2001:660:4406:582:3:1::50",
-      "kavlan-4": "2001:660:4406:590:3:1::50",
-      "kavlan-5": "2001:660:4406:591:3:1::50",
-      "kavlan-6": "2001:660:4406:592:3:1::50",
-      "kavlan-7": "2001:660:4406:593:3:1::50",
-      "kavlan-8": "2001:660:4406:594:3:1::50",
-      "kavlan-9": "2001:660:4406:595:3:1::50"
+      "kavlan-1": "2001:660:4406:580:3:1:0:50",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:50",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:50",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:50",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:50",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:50",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:50",
+      "kavlan-2": "2001:660:4406:581:3:1:0:50",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:50",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:50",
+      "kavlan-3": "2001:660:4406:582:3:1:0:50",
+      "kavlan-4": "2001:660:4406:590:3:1:0:50",
+      "kavlan-5": "2001:660:4406:591:3:1:0:50",
+      "kavlan-6": "2001:660:4406:592:3:1:0:50",
+      "kavlan-7": "2001:660:4406:593:3:1:0:50",
+      "kavlan-8": "2001:660:4406:594:3:1:0:50",
+      "kavlan-9": "2001:660:4406:595:3:1:0:50"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.80",
-      "ip6": "2001:660:4406:500:3:0::50",
+      "ip6": "2001:660:4406:500:3::50",
       "kavlan": true,
       "mac": "98:03:9b:b0:bf:86",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.208",
-      "ip6": "2001:660:4406:500:3:1::50",
+      "ip6": "2001:660:4406:500:3:1:0:50",
       "kavlan": true,
       "mac": "98:03:9b:b0:bf:87",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-81.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-81.json
index 4ea6e694f623cdbe9f077e8a082a00c2633ac460..05fab690ab79bd7a8d8c253e4ff15fb7fbf05207 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-81.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-81.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::51",
-      "kavlan-11": "2001:660:4406:1a0:503:0::51",
-      "kavlan-12": "2001:660:4406:2a0:503:0::51",
-      "kavlan-13": "2001:660:4406:4a0:503:0::51",
-      "kavlan-14": "2001:660:4406:5a0:503:0::51",
-      "kavlan-16": "2001:660:4406:7a0:503:0::51",
-      "kavlan-18": "2001:660:4406:8a0:503:0::51",
-      "kavlan-2": "2001:660:4406:581:3:0::51",
-      "kavlan-20": "2001:660:4406:3a0:503:0::51",
-      "kavlan-21": "2001:660:4406:6a0:503:0::51",
-      "kavlan-3": "2001:660:4406:582:3:0::51",
-      "kavlan-4": "2001:660:4406:590:3:0::51",
-      "kavlan-5": "2001:660:4406:591:3:0::51",
-      "kavlan-6": "2001:660:4406:592:3:0::51",
-      "kavlan-7": "2001:660:4406:593:3:0::51",
-      "kavlan-8": "2001:660:4406:594:3:0::51",
-      "kavlan-9": "2001:660:4406:595:3:0::51"
+      "kavlan-1": "2001:660:4406:580:3::51",
+      "kavlan-11": "2001:660:4406:1a0:503::51",
+      "kavlan-12": "2001:660:4406:2a0:503::51",
+      "kavlan-13": "2001:660:4406:4a0:503::51",
+      "kavlan-14": "2001:660:4406:5a0:503::51",
+      "kavlan-16": "2001:660:4406:7a0:503::51",
+      "kavlan-18": "2001:660:4406:8a0:503::51",
+      "kavlan-2": "2001:660:4406:581:3::51",
+      "kavlan-20": "2001:660:4406:3a0:503::51",
+      "kavlan-21": "2001:660:4406:6a0:503::51",
+      "kavlan-3": "2001:660:4406:582:3::51",
+      "kavlan-4": "2001:660:4406:590:3::51",
+      "kavlan-5": "2001:660:4406:591:3::51",
+      "kavlan-6": "2001:660:4406:592:3::51",
+      "kavlan-7": "2001:660:4406:593:3::51",
+      "kavlan-8": "2001:660:4406:594:3::51",
+      "kavlan-9": "2001:660:4406:595:3::51"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::51",
-      "kavlan-11": "2001:660:4406:1a0:503:1::51",
-      "kavlan-12": "2001:660:4406:2a0:503:1::51",
-      "kavlan-13": "2001:660:4406:4a0:503:1::51",
-      "kavlan-14": "2001:660:4406:5a0:503:1::51",
-      "kavlan-16": "2001:660:4406:7a0:503:1::51",
-      "kavlan-18": "2001:660:4406:8a0:503:1::51",
-      "kavlan-2": "2001:660:4406:581:3:1::51",
-      "kavlan-20": "2001:660:4406:3a0:503:1::51",
-      "kavlan-21": "2001:660:4406:6a0:503:1::51",
-      "kavlan-3": "2001:660:4406:582:3:1::51",
-      "kavlan-4": "2001:660:4406:590:3:1::51",
-      "kavlan-5": "2001:660:4406:591:3:1::51",
-      "kavlan-6": "2001:660:4406:592:3:1::51",
-      "kavlan-7": "2001:660:4406:593:3:1::51",
-      "kavlan-8": "2001:660:4406:594:3:1::51",
-      "kavlan-9": "2001:660:4406:595:3:1::51"
+      "kavlan-1": "2001:660:4406:580:3:1:0:51",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:51",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:51",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:51",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:51",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:51",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:51",
+      "kavlan-2": "2001:660:4406:581:3:1:0:51",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:51",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:51",
+      "kavlan-3": "2001:660:4406:582:3:1:0:51",
+      "kavlan-4": "2001:660:4406:590:3:1:0:51",
+      "kavlan-5": "2001:660:4406:591:3:1:0:51",
+      "kavlan-6": "2001:660:4406:592:3:1:0:51",
+      "kavlan-7": "2001:660:4406:593:3:1:0:51",
+      "kavlan-8": "2001:660:4406:594:3:1:0:51",
+      "kavlan-9": "2001:660:4406:595:3:1:0:51"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.81",
-      "ip6": "2001:660:4406:500:3:0::51",
+      "ip6": "2001:660:4406:500:3::51",
       "kavlan": true,
       "mac": "98:03:9b:b0:9d:4a",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.209",
-      "ip6": "2001:660:4406:500:3:1::51",
+      "ip6": "2001:660:4406:500:3:1:0:51",
       "kavlan": true,
       "mac": "98:03:9b:b0:9d:4b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-82.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-82.json
index 51471e86b1c795c2bb04e2b9339df084940267fe..5025820541485aaca96e3696785c9e4722c27bab 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-82.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-82.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::52",
-      "kavlan-11": "2001:660:4406:1a0:503:0::52",
-      "kavlan-12": "2001:660:4406:2a0:503:0::52",
-      "kavlan-13": "2001:660:4406:4a0:503:0::52",
-      "kavlan-14": "2001:660:4406:5a0:503:0::52",
-      "kavlan-16": "2001:660:4406:7a0:503:0::52",
-      "kavlan-18": "2001:660:4406:8a0:503:0::52",
-      "kavlan-2": "2001:660:4406:581:3:0::52",
-      "kavlan-20": "2001:660:4406:3a0:503:0::52",
-      "kavlan-21": "2001:660:4406:6a0:503:0::52",
-      "kavlan-3": "2001:660:4406:582:3:0::52",
-      "kavlan-4": "2001:660:4406:590:3:0::52",
-      "kavlan-5": "2001:660:4406:591:3:0::52",
-      "kavlan-6": "2001:660:4406:592:3:0::52",
-      "kavlan-7": "2001:660:4406:593:3:0::52",
-      "kavlan-8": "2001:660:4406:594:3:0::52",
-      "kavlan-9": "2001:660:4406:595:3:0::52"
+      "kavlan-1": "2001:660:4406:580:3::52",
+      "kavlan-11": "2001:660:4406:1a0:503::52",
+      "kavlan-12": "2001:660:4406:2a0:503::52",
+      "kavlan-13": "2001:660:4406:4a0:503::52",
+      "kavlan-14": "2001:660:4406:5a0:503::52",
+      "kavlan-16": "2001:660:4406:7a0:503::52",
+      "kavlan-18": "2001:660:4406:8a0:503::52",
+      "kavlan-2": "2001:660:4406:581:3::52",
+      "kavlan-20": "2001:660:4406:3a0:503::52",
+      "kavlan-21": "2001:660:4406:6a0:503::52",
+      "kavlan-3": "2001:660:4406:582:3::52",
+      "kavlan-4": "2001:660:4406:590:3::52",
+      "kavlan-5": "2001:660:4406:591:3::52",
+      "kavlan-6": "2001:660:4406:592:3::52",
+      "kavlan-7": "2001:660:4406:593:3::52",
+      "kavlan-8": "2001:660:4406:594:3::52",
+      "kavlan-9": "2001:660:4406:595:3::52"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::52",
-      "kavlan-11": "2001:660:4406:1a0:503:1::52",
-      "kavlan-12": "2001:660:4406:2a0:503:1::52",
-      "kavlan-13": "2001:660:4406:4a0:503:1::52",
-      "kavlan-14": "2001:660:4406:5a0:503:1::52",
-      "kavlan-16": "2001:660:4406:7a0:503:1::52",
-      "kavlan-18": "2001:660:4406:8a0:503:1::52",
-      "kavlan-2": "2001:660:4406:581:3:1::52",
-      "kavlan-20": "2001:660:4406:3a0:503:1::52",
-      "kavlan-21": "2001:660:4406:6a0:503:1::52",
-      "kavlan-3": "2001:660:4406:582:3:1::52",
-      "kavlan-4": "2001:660:4406:590:3:1::52",
-      "kavlan-5": "2001:660:4406:591:3:1::52",
-      "kavlan-6": "2001:660:4406:592:3:1::52",
-      "kavlan-7": "2001:660:4406:593:3:1::52",
-      "kavlan-8": "2001:660:4406:594:3:1::52",
-      "kavlan-9": "2001:660:4406:595:3:1::52"
+      "kavlan-1": "2001:660:4406:580:3:1:0:52",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:52",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:52",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:52",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:52",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:52",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:52",
+      "kavlan-2": "2001:660:4406:581:3:1:0:52",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:52",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:52",
+      "kavlan-3": "2001:660:4406:582:3:1:0:52",
+      "kavlan-4": "2001:660:4406:590:3:1:0:52",
+      "kavlan-5": "2001:660:4406:591:3:1:0:52",
+      "kavlan-6": "2001:660:4406:592:3:1:0:52",
+      "kavlan-7": "2001:660:4406:593:3:1:0:52",
+      "kavlan-8": "2001:660:4406:594:3:1:0:52",
+      "kavlan-9": "2001:660:4406:595:3:1:0:52"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.82",
-      "ip6": "2001:660:4406:500:3:0::52",
+      "ip6": "2001:660:4406:500:3::52",
       "kavlan": true,
       "mac": "98:03:9b:b0:99:6a",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.210",
-      "ip6": "2001:660:4406:500:3:1::52",
+      "ip6": "2001:660:4406:500:3:1:0:52",
       "kavlan": true,
       "mac": "98:03:9b:b0:99:6b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-83.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-83.json
index 79849a1f93fa7b3f15d27809000712ff1e07419e..1ac9ed2adc69f66e6909518323afae9ab2534510 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-83.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-83.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::53",
-      "kavlan-11": "2001:660:4406:1a0:503:0::53",
-      "kavlan-12": "2001:660:4406:2a0:503:0::53",
-      "kavlan-13": "2001:660:4406:4a0:503:0::53",
-      "kavlan-14": "2001:660:4406:5a0:503:0::53",
-      "kavlan-16": "2001:660:4406:7a0:503:0::53",
-      "kavlan-18": "2001:660:4406:8a0:503:0::53",
-      "kavlan-2": "2001:660:4406:581:3:0::53",
-      "kavlan-20": "2001:660:4406:3a0:503:0::53",
-      "kavlan-21": "2001:660:4406:6a0:503:0::53",
-      "kavlan-3": "2001:660:4406:582:3:0::53",
-      "kavlan-4": "2001:660:4406:590:3:0::53",
-      "kavlan-5": "2001:660:4406:591:3:0::53",
-      "kavlan-6": "2001:660:4406:592:3:0::53",
-      "kavlan-7": "2001:660:4406:593:3:0::53",
-      "kavlan-8": "2001:660:4406:594:3:0::53",
-      "kavlan-9": "2001:660:4406:595:3:0::53"
+      "kavlan-1": "2001:660:4406:580:3::53",
+      "kavlan-11": "2001:660:4406:1a0:503::53",
+      "kavlan-12": "2001:660:4406:2a0:503::53",
+      "kavlan-13": "2001:660:4406:4a0:503::53",
+      "kavlan-14": "2001:660:4406:5a0:503::53",
+      "kavlan-16": "2001:660:4406:7a0:503::53",
+      "kavlan-18": "2001:660:4406:8a0:503::53",
+      "kavlan-2": "2001:660:4406:581:3::53",
+      "kavlan-20": "2001:660:4406:3a0:503::53",
+      "kavlan-21": "2001:660:4406:6a0:503::53",
+      "kavlan-3": "2001:660:4406:582:3::53",
+      "kavlan-4": "2001:660:4406:590:3::53",
+      "kavlan-5": "2001:660:4406:591:3::53",
+      "kavlan-6": "2001:660:4406:592:3::53",
+      "kavlan-7": "2001:660:4406:593:3::53",
+      "kavlan-8": "2001:660:4406:594:3::53",
+      "kavlan-9": "2001:660:4406:595:3::53"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::53",
-      "kavlan-11": "2001:660:4406:1a0:503:1::53",
-      "kavlan-12": "2001:660:4406:2a0:503:1::53",
-      "kavlan-13": "2001:660:4406:4a0:503:1::53",
-      "kavlan-14": "2001:660:4406:5a0:503:1::53",
-      "kavlan-16": "2001:660:4406:7a0:503:1::53",
-      "kavlan-18": "2001:660:4406:8a0:503:1::53",
-      "kavlan-2": "2001:660:4406:581:3:1::53",
-      "kavlan-20": "2001:660:4406:3a0:503:1::53",
-      "kavlan-21": "2001:660:4406:6a0:503:1::53",
-      "kavlan-3": "2001:660:4406:582:3:1::53",
-      "kavlan-4": "2001:660:4406:590:3:1::53",
-      "kavlan-5": "2001:660:4406:591:3:1::53",
-      "kavlan-6": "2001:660:4406:592:3:1::53",
-      "kavlan-7": "2001:660:4406:593:3:1::53",
-      "kavlan-8": "2001:660:4406:594:3:1::53",
-      "kavlan-9": "2001:660:4406:595:3:1::53"
+      "kavlan-1": "2001:660:4406:580:3:1:0:53",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:53",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:53",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:53",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:53",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:53",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:53",
+      "kavlan-2": "2001:660:4406:581:3:1:0:53",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:53",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:53",
+      "kavlan-3": "2001:660:4406:582:3:1:0:53",
+      "kavlan-4": "2001:660:4406:590:3:1:0:53",
+      "kavlan-5": "2001:660:4406:591:3:1:0:53",
+      "kavlan-6": "2001:660:4406:592:3:1:0:53",
+      "kavlan-7": "2001:660:4406:593:3:1:0:53",
+      "kavlan-8": "2001:660:4406:594:3:1:0:53",
+      "kavlan-9": "2001:660:4406:595:3:1:0:53"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.83",
-      "ip6": "2001:660:4406:500:3:0::53",
+      "ip6": "2001:660:4406:500:3::53",
       "kavlan": true,
       "mac": "98:03:9b:b0:ba:7e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.211",
-      "ip6": "2001:660:4406:500:3:1::53",
+      "ip6": "2001:660:4406:500:3:1:0:53",
       "kavlan": true,
       "mac": "98:03:9b:b0:ba:7f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-84.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-84.json
index e5ff02f7b94509b1354d0931f65f2eb38745b7dc..8e51a2c581833d645ea2622658419bc058a7b714 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-84.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-84.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::54",
-      "kavlan-11": "2001:660:4406:1a0:503:0::54",
-      "kavlan-12": "2001:660:4406:2a0:503:0::54",
-      "kavlan-13": "2001:660:4406:4a0:503:0::54",
-      "kavlan-14": "2001:660:4406:5a0:503:0::54",
-      "kavlan-16": "2001:660:4406:7a0:503:0::54",
-      "kavlan-18": "2001:660:4406:8a0:503:0::54",
-      "kavlan-2": "2001:660:4406:581:3:0::54",
-      "kavlan-20": "2001:660:4406:3a0:503:0::54",
-      "kavlan-21": "2001:660:4406:6a0:503:0::54",
-      "kavlan-3": "2001:660:4406:582:3:0::54",
-      "kavlan-4": "2001:660:4406:590:3:0::54",
-      "kavlan-5": "2001:660:4406:591:3:0::54",
-      "kavlan-6": "2001:660:4406:592:3:0::54",
-      "kavlan-7": "2001:660:4406:593:3:0::54",
-      "kavlan-8": "2001:660:4406:594:3:0::54",
-      "kavlan-9": "2001:660:4406:595:3:0::54"
+      "kavlan-1": "2001:660:4406:580:3::54",
+      "kavlan-11": "2001:660:4406:1a0:503::54",
+      "kavlan-12": "2001:660:4406:2a0:503::54",
+      "kavlan-13": "2001:660:4406:4a0:503::54",
+      "kavlan-14": "2001:660:4406:5a0:503::54",
+      "kavlan-16": "2001:660:4406:7a0:503::54",
+      "kavlan-18": "2001:660:4406:8a0:503::54",
+      "kavlan-2": "2001:660:4406:581:3::54",
+      "kavlan-20": "2001:660:4406:3a0:503::54",
+      "kavlan-21": "2001:660:4406:6a0:503::54",
+      "kavlan-3": "2001:660:4406:582:3::54",
+      "kavlan-4": "2001:660:4406:590:3::54",
+      "kavlan-5": "2001:660:4406:591:3::54",
+      "kavlan-6": "2001:660:4406:592:3::54",
+      "kavlan-7": "2001:660:4406:593:3::54",
+      "kavlan-8": "2001:660:4406:594:3::54",
+      "kavlan-9": "2001:660:4406:595:3::54"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::54",
-      "kavlan-11": "2001:660:4406:1a0:503:1::54",
-      "kavlan-12": "2001:660:4406:2a0:503:1::54",
-      "kavlan-13": "2001:660:4406:4a0:503:1::54",
-      "kavlan-14": "2001:660:4406:5a0:503:1::54",
-      "kavlan-16": "2001:660:4406:7a0:503:1::54",
-      "kavlan-18": "2001:660:4406:8a0:503:1::54",
-      "kavlan-2": "2001:660:4406:581:3:1::54",
-      "kavlan-20": "2001:660:4406:3a0:503:1::54",
-      "kavlan-21": "2001:660:4406:6a0:503:1::54",
-      "kavlan-3": "2001:660:4406:582:3:1::54",
-      "kavlan-4": "2001:660:4406:590:3:1::54",
-      "kavlan-5": "2001:660:4406:591:3:1::54",
-      "kavlan-6": "2001:660:4406:592:3:1::54",
-      "kavlan-7": "2001:660:4406:593:3:1::54",
-      "kavlan-8": "2001:660:4406:594:3:1::54",
-      "kavlan-9": "2001:660:4406:595:3:1::54"
+      "kavlan-1": "2001:660:4406:580:3:1:0:54",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:54",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:54",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:54",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:54",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:54",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:54",
+      "kavlan-2": "2001:660:4406:581:3:1:0:54",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:54",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:54",
+      "kavlan-3": "2001:660:4406:582:3:1:0:54",
+      "kavlan-4": "2001:660:4406:590:3:1:0:54",
+      "kavlan-5": "2001:660:4406:591:3:1:0:54",
+      "kavlan-6": "2001:660:4406:592:3:1:0:54",
+      "kavlan-7": "2001:660:4406:593:3:1:0:54",
+      "kavlan-8": "2001:660:4406:594:3:1:0:54",
+      "kavlan-9": "2001:660:4406:595:3:1:0:54"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.84",
-      "ip6": "2001:660:4406:500:3:0::54",
+      "ip6": "2001:660:4406:500:3::54",
       "kavlan": true,
       "mac": "98:03:9b:b0:a9:6e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.212",
-      "ip6": "2001:660:4406:500:3:1::54",
+      "ip6": "2001:660:4406:500:3:1:0:54",
       "kavlan": true,
       "mac": "98:03:9b:b0:a9:6f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-85.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-85.json
index 74b63d0b63f4e2dbab5f76e37e6e490742875c49..ab0fd6a049366b4d281427b86efcb5cc9ecdc9c0 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-85.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-85.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::55",
-      "kavlan-11": "2001:660:4406:1a0:503:0::55",
-      "kavlan-12": "2001:660:4406:2a0:503:0::55",
-      "kavlan-13": "2001:660:4406:4a0:503:0::55",
-      "kavlan-14": "2001:660:4406:5a0:503:0::55",
-      "kavlan-16": "2001:660:4406:7a0:503:0::55",
-      "kavlan-18": "2001:660:4406:8a0:503:0::55",
-      "kavlan-2": "2001:660:4406:581:3:0::55",
-      "kavlan-20": "2001:660:4406:3a0:503:0::55",
-      "kavlan-21": "2001:660:4406:6a0:503:0::55",
-      "kavlan-3": "2001:660:4406:582:3:0::55",
-      "kavlan-4": "2001:660:4406:590:3:0::55",
-      "kavlan-5": "2001:660:4406:591:3:0::55",
-      "kavlan-6": "2001:660:4406:592:3:0::55",
-      "kavlan-7": "2001:660:4406:593:3:0::55",
-      "kavlan-8": "2001:660:4406:594:3:0::55",
-      "kavlan-9": "2001:660:4406:595:3:0::55"
+      "kavlan-1": "2001:660:4406:580:3::55",
+      "kavlan-11": "2001:660:4406:1a0:503::55",
+      "kavlan-12": "2001:660:4406:2a0:503::55",
+      "kavlan-13": "2001:660:4406:4a0:503::55",
+      "kavlan-14": "2001:660:4406:5a0:503::55",
+      "kavlan-16": "2001:660:4406:7a0:503::55",
+      "kavlan-18": "2001:660:4406:8a0:503::55",
+      "kavlan-2": "2001:660:4406:581:3::55",
+      "kavlan-20": "2001:660:4406:3a0:503::55",
+      "kavlan-21": "2001:660:4406:6a0:503::55",
+      "kavlan-3": "2001:660:4406:582:3::55",
+      "kavlan-4": "2001:660:4406:590:3::55",
+      "kavlan-5": "2001:660:4406:591:3::55",
+      "kavlan-6": "2001:660:4406:592:3::55",
+      "kavlan-7": "2001:660:4406:593:3::55",
+      "kavlan-8": "2001:660:4406:594:3::55",
+      "kavlan-9": "2001:660:4406:595:3::55"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::55",
-      "kavlan-11": "2001:660:4406:1a0:503:1::55",
-      "kavlan-12": "2001:660:4406:2a0:503:1::55",
-      "kavlan-13": "2001:660:4406:4a0:503:1::55",
-      "kavlan-14": "2001:660:4406:5a0:503:1::55",
-      "kavlan-16": "2001:660:4406:7a0:503:1::55",
-      "kavlan-18": "2001:660:4406:8a0:503:1::55",
-      "kavlan-2": "2001:660:4406:581:3:1::55",
-      "kavlan-20": "2001:660:4406:3a0:503:1::55",
-      "kavlan-21": "2001:660:4406:6a0:503:1::55",
-      "kavlan-3": "2001:660:4406:582:3:1::55",
-      "kavlan-4": "2001:660:4406:590:3:1::55",
-      "kavlan-5": "2001:660:4406:591:3:1::55",
-      "kavlan-6": "2001:660:4406:592:3:1::55",
-      "kavlan-7": "2001:660:4406:593:3:1::55",
-      "kavlan-8": "2001:660:4406:594:3:1::55",
-      "kavlan-9": "2001:660:4406:595:3:1::55"
+      "kavlan-1": "2001:660:4406:580:3:1:0:55",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:55",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:55",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:55",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:55",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:55",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:55",
+      "kavlan-2": "2001:660:4406:581:3:1:0:55",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:55",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:55",
+      "kavlan-3": "2001:660:4406:582:3:1:0:55",
+      "kavlan-4": "2001:660:4406:590:3:1:0:55",
+      "kavlan-5": "2001:660:4406:591:3:1:0:55",
+      "kavlan-6": "2001:660:4406:592:3:1:0:55",
+      "kavlan-7": "2001:660:4406:593:3:1:0:55",
+      "kavlan-8": "2001:660:4406:594:3:1:0:55",
+      "kavlan-9": "2001:660:4406:595:3:1:0:55"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.85",
-      "ip6": "2001:660:4406:500:3:0::55",
+      "ip6": "2001:660:4406:500:3::55",
       "kavlan": true,
       "mac": "98:03:9b:b0:d0:0e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.213",
-      "ip6": "2001:660:4406:500:3:1::55",
+      "ip6": "2001:660:4406:500:3:1:0:55",
       "kavlan": true,
       "mac": "98:03:9b:b0:d0:0f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-86.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-86.json
index e3af5875d23cf04b7f3947e1e5f33b2407fce0e3..f63ac2c935bd8fb5ff26354f20d10ed3e47dd73b 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-86.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-86.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::56",
-      "kavlan-11": "2001:660:4406:1a0:503:0::56",
-      "kavlan-12": "2001:660:4406:2a0:503:0::56",
-      "kavlan-13": "2001:660:4406:4a0:503:0::56",
-      "kavlan-14": "2001:660:4406:5a0:503:0::56",
-      "kavlan-16": "2001:660:4406:7a0:503:0::56",
-      "kavlan-18": "2001:660:4406:8a0:503:0::56",
-      "kavlan-2": "2001:660:4406:581:3:0::56",
-      "kavlan-20": "2001:660:4406:3a0:503:0::56",
-      "kavlan-21": "2001:660:4406:6a0:503:0::56",
-      "kavlan-3": "2001:660:4406:582:3:0::56",
-      "kavlan-4": "2001:660:4406:590:3:0::56",
-      "kavlan-5": "2001:660:4406:591:3:0::56",
-      "kavlan-6": "2001:660:4406:592:3:0::56",
-      "kavlan-7": "2001:660:4406:593:3:0::56",
-      "kavlan-8": "2001:660:4406:594:3:0::56",
-      "kavlan-9": "2001:660:4406:595:3:0::56"
+      "kavlan-1": "2001:660:4406:580:3::56",
+      "kavlan-11": "2001:660:4406:1a0:503::56",
+      "kavlan-12": "2001:660:4406:2a0:503::56",
+      "kavlan-13": "2001:660:4406:4a0:503::56",
+      "kavlan-14": "2001:660:4406:5a0:503::56",
+      "kavlan-16": "2001:660:4406:7a0:503::56",
+      "kavlan-18": "2001:660:4406:8a0:503::56",
+      "kavlan-2": "2001:660:4406:581:3::56",
+      "kavlan-20": "2001:660:4406:3a0:503::56",
+      "kavlan-21": "2001:660:4406:6a0:503::56",
+      "kavlan-3": "2001:660:4406:582:3::56",
+      "kavlan-4": "2001:660:4406:590:3::56",
+      "kavlan-5": "2001:660:4406:591:3::56",
+      "kavlan-6": "2001:660:4406:592:3::56",
+      "kavlan-7": "2001:660:4406:593:3::56",
+      "kavlan-8": "2001:660:4406:594:3::56",
+      "kavlan-9": "2001:660:4406:595:3::56"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::56",
-      "kavlan-11": "2001:660:4406:1a0:503:1::56",
-      "kavlan-12": "2001:660:4406:2a0:503:1::56",
-      "kavlan-13": "2001:660:4406:4a0:503:1::56",
-      "kavlan-14": "2001:660:4406:5a0:503:1::56",
-      "kavlan-16": "2001:660:4406:7a0:503:1::56",
-      "kavlan-18": "2001:660:4406:8a0:503:1::56",
-      "kavlan-2": "2001:660:4406:581:3:1::56",
-      "kavlan-20": "2001:660:4406:3a0:503:1::56",
-      "kavlan-21": "2001:660:4406:6a0:503:1::56",
-      "kavlan-3": "2001:660:4406:582:3:1::56",
-      "kavlan-4": "2001:660:4406:590:3:1::56",
-      "kavlan-5": "2001:660:4406:591:3:1::56",
-      "kavlan-6": "2001:660:4406:592:3:1::56",
-      "kavlan-7": "2001:660:4406:593:3:1::56",
-      "kavlan-8": "2001:660:4406:594:3:1::56",
-      "kavlan-9": "2001:660:4406:595:3:1::56"
+      "kavlan-1": "2001:660:4406:580:3:1:0:56",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:56",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:56",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:56",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:56",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:56",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:56",
+      "kavlan-2": "2001:660:4406:581:3:1:0:56",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:56",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:56",
+      "kavlan-3": "2001:660:4406:582:3:1:0:56",
+      "kavlan-4": "2001:660:4406:590:3:1:0:56",
+      "kavlan-5": "2001:660:4406:591:3:1:0:56",
+      "kavlan-6": "2001:660:4406:592:3:1:0:56",
+      "kavlan-7": "2001:660:4406:593:3:1:0:56",
+      "kavlan-8": "2001:660:4406:594:3:1:0:56",
+      "kavlan-9": "2001:660:4406:595:3:1:0:56"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.86",
-      "ip6": "2001:660:4406:500:3:0::56",
+      "ip6": "2001:660:4406:500:3::56",
       "kavlan": true,
       "mac": "98:03:9b:b0:cf:e6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.214",
-      "ip6": "2001:660:4406:500:3:1::56",
+      "ip6": "2001:660:4406:500:3:1:0:56",
       "kavlan": true,
       "mac": "98:03:9b:b0:cf:e7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-87.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-87.json
index 7b70b241e6a611e1fcc58d52100bcc93060f6e24..663066589dc2652c737c888066e1d2362ccbc58d 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-87.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-87.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::57",
-      "kavlan-11": "2001:660:4406:1a0:503:0::57",
-      "kavlan-12": "2001:660:4406:2a0:503:0::57",
-      "kavlan-13": "2001:660:4406:4a0:503:0::57",
-      "kavlan-14": "2001:660:4406:5a0:503:0::57",
-      "kavlan-16": "2001:660:4406:7a0:503:0::57",
-      "kavlan-18": "2001:660:4406:8a0:503:0::57",
-      "kavlan-2": "2001:660:4406:581:3:0::57",
-      "kavlan-20": "2001:660:4406:3a0:503:0::57",
-      "kavlan-21": "2001:660:4406:6a0:503:0::57",
-      "kavlan-3": "2001:660:4406:582:3:0::57",
-      "kavlan-4": "2001:660:4406:590:3:0::57",
-      "kavlan-5": "2001:660:4406:591:3:0::57",
-      "kavlan-6": "2001:660:4406:592:3:0::57",
-      "kavlan-7": "2001:660:4406:593:3:0::57",
-      "kavlan-8": "2001:660:4406:594:3:0::57",
-      "kavlan-9": "2001:660:4406:595:3:0::57"
+      "kavlan-1": "2001:660:4406:580:3::57",
+      "kavlan-11": "2001:660:4406:1a0:503::57",
+      "kavlan-12": "2001:660:4406:2a0:503::57",
+      "kavlan-13": "2001:660:4406:4a0:503::57",
+      "kavlan-14": "2001:660:4406:5a0:503::57",
+      "kavlan-16": "2001:660:4406:7a0:503::57",
+      "kavlan-18": "2001:660:4406:8a0:503::57",
+      "kavlan-2": "2001:660:4406:581:3::57",
+      "kavlan-20": "2001:660:4406:3a0:503::57",
+      "kavlan-21": "2001:660:4406:6a0:503::57",
+      "kavlan-3": "2001:660:4406:582:3::57",
+      "kavlan-4": "2001:660:4406:590:3::57",
+      "kavlan-5": "2001:660:4406:591:3::57",
+      "kavlan-6": "2001:660:4406:592:3::57",
+      "kavlan-7": "2001:660:4406:593:3::57",
+      "kavlan-8": "2001:660:4406:594:3::57",
+      "kavlan-9": "2001:660:4406:595:3::57"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::57",
-      "kavlan-11": "2001:660:4406:1a0:503:1::57",
-      "kavlan-12": "2001:660:4406:2a0:503:1::57",
-      "kavlan-13": "2001:660:4406:4a0:503:1::57",
-      "kavlan-14": "2001:660:4406:5a0:503:1::57",
-      "kavlan-16": "2001:660:4406:7a0:503:1::57",
-      "kavlan-18": "2001:660:4406:8a0:503:1::57",
-      "kavlan-2": "2001:660:4406:581:3:1::57",
-      "kavlan-20": "2001:660:4406:3a0:503:1::57",
-      "kavlan-21": "2001:660:4406:6a0:503:1::57",
-      "kavlan-3": "2001:660:4406:582:3:1::57",
-      "kavlan-4": "2001:660:4406:590:3:1::57",
-      "kavlan-5": "2001:660:4406:591:3:1::57",
-      "kavlan-6": "2001:660:4406:592:3:1::57",
-      "kavlan-7": "2001:660:4406:593:3:1::57",
-      "kavlan-8": "2001:660:4406:594:3:1::57",
-      "kavlan-9": "2001:660:4406:595:3:1::57"
+      "kavlan-1": "2001:660:4406:580:3:1:0:57",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:57",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:57",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:57",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:57",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:57",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:57",
+      "kavlan-2": "2001:660:4406:581:3:1:0:57",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:57",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:57",
+      "kavlan-3": "2001:660:4406:582:3:1:0:57",
+      "kavlan-4": "2001:660:4406:590:3:1:0:57",
+      "kavlan-5": "2001:660:4406:591:3:1:0:57",
+      "kavlan-6": "2001:660:4406:592:3:1:0:57",
+      "kavlan-7": "2001:660:4406:593:3:1:0:57",
+      "kavlan-8": "2001:660:4406:594:3:1:0:57",
+      "kavlan-9": "2001:660:4406:595:3:1:0:57"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.87",
-      "ip6": "2001:660:4406:500:3:0::57",
+      "ip6": "2001:660:4406:500:3::57",
       "kavlan": true,
       "mac": "98:03:9b:b0:c6:06",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.215",
-      "ip6": "2001:660:4406:500:3:1::57",
+      "ip6": "2001:660:4406:500:3:1:0:57",
       "kavlan": true,
       "mac": "98:03:9b:b0:c6:07",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-88.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-88.json
index a7e581e074991421d82e7d100933f359f1634fe3..7c5193874260a7975a478f8f3c89696a7044fb56 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-88.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-88.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::58",
-      "kavlan-11": "2001:660:4406:1a0:503:0::58",
-      "kavlan-12": "2001:660:4406:2a0:503:0::58",
-      "kavlan-13": "2001:660:4406:4a0:503:0::58",
-      "kavlan-14": "2001:660:4406:5a0:503:0::58",
-      "kavlan-16": "2001:660:4406:7a0:503:0::58",
-      "kavlan-18": "2001:660:4406:8a0:503:0::58",
-      "kavlan-2": "2001:660:4406:581:3:0::58",
-      "kavlan-20": "2001:660:4406:3a0:503:0::58",
-      "kavlan-21": "2001:660:4406:6a0:503:0::58",
-      "kavlan-3": "2001:660:4406:582:3:0::58",
-      "kavlan-4": "2001:660:4406:590:3:0::58",
-      "kavlan-5": "2001:660:4406:591:3:0::58",
-      "kavlan-6": "2001:660:4406:592:3:0::58",
-      "kavlan-7": "2001:660:4406:593:3:0::58",
-      "kavlan-8": "2001:660:4406:594:3:0::58",
-      "kavlan-9": "2001:660:4406:595:3:0::58"
+      "kavlan-1": "2001:660:4406:580:3::58",
+      "kavlan-11": "2001:660:4406:1a0:503::58",
+      "kavlan-12": "2001:660:4406:2a0:503::58",
+      "kavlan-13": "2001:660:4406:4a0:503::58",
+      "kavlan-14": "2001:660:4406:5a0:503::58",
+      "kavlan-16": "2001:660:4406:7a0:503::58",
+      "kavlan-18": "2001:660:4406:8a0:503::58",
+      "kavlan-2": "2001:660:4406:581:3::58",
+      "kavlan-20": "2001:660:4406:3a0:503::58",
+      "kavlan-21": "2001:660:4406:6a0:503::58",
+      "kavlan-3": "2001:660:4406:582:3::58",
+      "kavlan-4": "2001:660:4406:590:3::58",
+      "kavlan-5": "2001:660:4406:591:3::58",
+      "kavlan-6": "2001:660:4406:592:3::58",
+      "kavlan-7": "2001:660:4406:593:3::58",
+      "kavlan-8": "2001:660:4406:594:3::58",
+      "kavlan-9": "2001:660:4406:595:3::58"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::58",
-      "kavlan-11": "2001:660:4406:1a0:503:1::58",
-      "kavlan-12": "2001:660:4406:2a0:503:1::58",
-      "kavlan-13": "2001:660:4406:4a0:503:1::58",
-      "kavlan-14": "2001:660:4406:5a0:503:1::58",
-      "kavlan-16": "2001:660:4406:7a0:503:1::58",
-      "kavlan-18": "2001:660:4406:8a0:503:1::58",
-      "kavlan-2": "2001:660:4406:581:3:1::58",
-      "kavlan-20": "2001:660:4406:3a0:503:1::58",
-      "kavlan-21": "2001:660:4406:6a0:503:1::58",
-      "kavlan-3": "2001:660:4406:582:3:1::58",
-      "kavlan-4": "2001:660:4406:590:3:1::58",
-      "kavlan-5": "2001:660:4406:591:3:1::58",
-      "kavlan-6": "2001:660:4406:592:3:1::58",
-      "kavlan-7": "2001:660:4406:593:3:1::58",
-      "kavlan-8": "2001:660:4406:594:3:1::58",
-      "kavlan-9": "2001:660:4406:595:3:1::58"
+      "kavlan-1": "2001:660:4406:580:3:1:0:58",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:58",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:58",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:58",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:58",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:58",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:58",
+      "kavlan-2": "2001:660:4406:581:3:1:0:58",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:58",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:58",
+      "kavlan-3": "2001:660:4406:582:3:1:0:58",
+      "kavlan-4": "2001:660:4406:590:3:1:0:58",
+      "kavlan-5": "2001:660:4406:591:3:1:0:58",
+      "kavlan-6": "2001:660:4406:592:3:1:0:58",
+      "kavlan-7": "2001:660:4406:593:3:1:0:58",
+      "kavlan-8": "2001:660:4406:594:3:1:0:58",
+      "kavlan-9": "2001:660:4406:595:3:1:0:58"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.88",
-      "ip6": "2001:660:4406:500:3:0::58",
+      "ip6": "2001:660:4406:500:3::58",
       "kavlan": true,
       "mac": "98:03:9b:b0:ba:de",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.216",
-      "ip6": "2001:660:4406:500:3:1::58",
+      "ip6": "2001:660:4406:500:3:1:0:58",
       "kavlan": true,
       "mac": "98:03:9b:b0:ba:df",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-89.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-89.json
index eb8a4b070bcec8c45a3b2ecea0fb6d5a9ab94b22..fb0ca296566ce0b2b6dabf9346a981524aa1d702 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-89.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-89.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::59",
-      "kavlan-11": "2001:660:4406:1a0:503:0::59",
-      "kavlan-12": "2001:660:4406:2a0:503:0::59",
-      "kavlan-13": "2001:660:4406:4a0:503:0::59",
-      "kavlan-14": "2001:660:4406:5a0:503:0::59",
-      "kavlan-16": "2001:660:4406:7a0:503:0::59",
-      "kavlan-18": "2001:660:4406:8a0:503:0::59",
-      "kavlan-2": "2001:660:4406:581:3:0::59",
-      "kavlan-20": "2001:660:4406:3a0:503:0::59",
-      "kavlan-21": "2001:660:4406:6a0:503:0::59",
-      "kavlan-3": "2001:660:4406:582:3:0::59",
-      "kavlan-4": "2001:660:4406:590:3:0::59",
-      "kavlan-5": "2001:660:4406:591:3:0::59",
-      "kavlan-6": "2001:660:4406:592:3:0::59",
-      "kavlan-7": "2001:660:4406:593:3:0::59",
-      "kavlan-8": "2001:660:4406:594:3:0::59",
-      "kavlan-9": "2001:660:4406:595:3:0::59"
+      "kavlan-1": "2001:660:4406:580:3::59",
+      "kavlan-11": "2001:660:4406:1a0:503::59",
+      "kavlan-12": "2001:660:4406:2a0:503::59",
+      "kavlan-13": "2001:660:4406:4a0:503::59",
+      "kavlan-14": "2001:660:4406:5a0:503::59",
+      "kavlan-16": "2001:660:4406:7a0:503::59",
+      "kavlan-18": "2001:660:4406:8a0:503::59",
+      "kavlan-2": "2001:660:4406:581:3::59",
+      "kavlan-20": "2001:660:4406:3a0:503::59",
+      "kavlan-21": "2001:660:4406:6a0:503::59",
+      "kavlan-3": "2001:660:4406:582:3::59",
+      "kavlan-4": "2001:660:4406:590:3::59",
+      "kavlan-5": "2001:660:4406:591:3::59",
+      "kavlan-6": "2001:660:4406:592:3::59",
+      "kavlan-7": "2001:660:4406:593:3::59",
+      "kavlan-8": "2001:660:4406:594:3::59",
+      "kavlan-9": "2001:660:4406:595:3::59"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::59",
-      "kavlan-11": "2001:660:4406:1a0:503:1::59",
-      "kavlan-12": "2001:660:4406:2a0:503:1::59",
-      "kavlan-13": "2001:660:4406:4a0:503:1::59",
-      "kavlan-14": "2001:660:4406:5a0:503:1::59",
-      "kavlan-16": "2001:660:4406:7a0:503:1::59",
-      "kavlan-18": "2001:660:4406:8a0:503:1::59",
-      "kavlan-2": "2001:660:4406:581:3:1::59",
-      "kavlan-20": "2001:660:4406:3a0:503:1::59",
-      "kavlan-21": "2001:660:4406:6a0:503:1::59",
-      "kavlan-3": "2001:660:4406:582:3:1::59",
-      "kavlan-4": "2001:660:4406:590:3:1::59",
-      "kavlan-5": "2001:660:4406:591:3:1::59",
-      "kavlan-6": "2001:660:4406:592:3:1::59",
-      "kavlan-7": "2001:660:4406:593:3:1::59",
-      "kavlan-8": "2001:660:4406:594:3:1::59",
-      "kavlan-9": "2001:660:4406:595:3:1::59"
+      "kavlan-1": "2001:660:4406:580:3:1:0:59",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:59",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:59",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:59",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:59",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:59",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:59",
+      "kavlan-2": "2001:660:4406:581:3:1:0:59",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:59",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:59",
+      "kavlan-3": "2001:660:4406:582:3:1:0:59",
+      "kavlan-4": "2001:660:4406:590:3:1:0:59",
+      "kavlan-5": "2001:660:4406:591:3:1:0:59",
+      "kavlan-6": "2001:660:4406:592:3:1:0:59",
+      "kavlan-7": "2001:660:4406:593:3:1:0:59",
+      "kavlan-8": "2001:660:4406:594:3:1:0:59",
+      "kavlan-9": "2001:660:4406:595:3:1:0:59"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.89",
-      "ip6": "2001:660:4406:500:3:0::59",
+      "ip6": "2001:660:4406:500:3::59",
       "kavlan": true,
       "mac": "98:03:9b:b0:9b:82",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.217",
-      "ip6": "2001:660:4406:500:3:1::59",
+      "ip6": "2001:660:4406:500:3:1:0:59",
       "kavlan": true,
       "mac": "98:03:9b:b0:9b:83",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-9.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-9.json
index 82196dd6143f8ddd33bdd666f92b8fc1d85ee986..3bf07d25cc15582c9b7ab060ab17115f100143eb 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-9.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-9.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::9",
-      "kavlan-11": "2001:660:4406:1a0:503:0::9",
-      "kavlan-12": "2001:660:4406:2a0:503:0::9",
-      "kavlan-13": "2001:660:4406:4a0:503:0::9",
-      "kavlan-14": "2001:660:4406:5a0:503:0::9",
-      "kavlan-16": "2001:660:4406:7a0:503:0::9",
-      "kavlan-18": "2001:660:4406:8a0:503:0::9",
-      "kavlan-2": "2001:660:4406:581:3:0::9",
-      "kavlan-20": "2001:660:4406:3a0:503:0::9",
-      "kavlan-21": "2001:660:4406:6a0:503:0::9",
-      "kavlan-3": "2001:660:4406:582:3:0::9",
-      "kavlan-4": "2001:660:4406:590:3:0::9",
-      "kavlan-5": "2001:660:4406:591:3:0::9",
-      "kavlan-6": "2001:660:4406:592:3:0::9",
-      "kavlan-7": "2001:660:4406:593:3:0::9",
-      "kavlan-8": "2001:660:4406:594:3:0::9",
-      "kavlan-9": "2001:660:4406:595:3:0::9"
+      "kavlan-1": "2001:660:4406:580:3::9",
+      "kavlan-11": "2001:660:4406:1a0:503::9",
+      "kavlan-12": "2001:660:4406:2a0:503::9",
+      "kavlan-13": "2001:660:4406:4a0:503::9",
+      "kavlan-14": "2001:660:4406:5a0:503::9",
+      "kavlan-16": "2001:660:4406:7a0:503::9",
+      "kavlan-18": "2001:660:4406:8a0:503::9",
+      "kavlan-2": "2001:660:4406:581:3::9",
+      "kavlan-20": "2001:660:4406:3a0:503::9",
+      "kavlan-21": "2001:660:4406:6a0:503::9",
+      "kavlan-3": "2001:660:4406:582:3::9",
+      "kavlan-4": "2001:660:4406:590:3::9",
+      "kavlan-5": "2001:660:4406:591:3::9",
+      "kavlan-6": "2001:660:4406:592:3::9",
+      "kavlan-7": "2001:660:4406:593:3::9",
+      "kavlan-8": "2001:660:4406:594:3::9",
+      "kavlan-9": "2001:660:4406:595:3::9"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::9",
-      "kavlan-11": "2001:660:4406:1a0:503:1::9",
-      "kavlan-12": "2001:660:4406:2a0:503:1::9",
-      "kavlan-13": "2001:660:4406:4a0:503:1::9",
-      "kavlan-14": "2001:660:4406:5a0:503:1::9",
-      "kavlan-16": "2001:660:4406:7a0:503:1::9",
-      "kavlan-18": "2001:660:4406:8a0:503:1::9",
-      "kavlan-2": "2001:660:4406:581:3:1::9",
-      "kavlan-20": "2001:660:4406:3a0:503:1::9",
-      "kavlan-21": "2001:660:4406:6a0:503:1::9",
-      "kavlan-3": "2001:660:4406:582:3:1::9",
-      "kavlan-4": "2001:660:4406:590:3:1::9",
-      "kavlan-5": "2001:660:4406:591:3:1::9",
-      "kavlan-6": "2001:660:4406:592:3:1::9",
-      "kavlan-7": "2001:660:4406:593:3:1::9",
-      "kavlan-8": "2001:660:4406:594:3:1::9",
-      "kavlan-9": "2001:660:4406:595:3:1::9"
+      "kavlan-1": "2001:660:4406:580:3:1:0:9",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:9",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:9",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:9",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:9",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:9",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:9",
+      "kavlan-2": "2001:660:4406:581:3:1:0:9",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:9",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:9",
+      "kavlan-3": "2001:660:4406:582:3:1:0:9",
+      "kavlan-4": "2001:660:4406:590:3:1:0:9",
+      "kavlan-5": "2001:660:4406:591:3:1:0:9",
+      "kavlan-6": "2001:660:4406:592:3:1:0:9",
+      "kavlan-7": "2001:660:4406:593:3:1:0:9",
+      "kavlan-8": "2001:660:4406:594:3:1:0:9",
+      "kavlan-9": "2001:660:4406:595:3:1:0:9"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.9",
-      "ip6": "2001:660:4406:500:3:0::9",
+      "ip6": "2001:660:4406:500:3::9",
       "kavlan": true,
       "mac": "98:03:9b:b0:98:12",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.137",
-      "ip6": "2001:660:4406:500:3:1::9",
+      "ip6": "2001:660:4406:500:3:1:0:9",
       "kavlan": true,
       "mac": "98:03:9b:b0:98:13",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-90.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-90.json
index 2ffabb631cbbfa27f95a0d8a5f730fc8992cd355..741ff0762ec24a4cc489bbd6225dc4cfb24c30b2 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-90.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-90.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::5a",
-      "kavlan-11": "2001:660:4406:1a0:503:0::5a",
-      "kavlan-12": "2001:660:4406:2a0:503:0::5a",
-      "kavlan-13": "2001:660:4406:4a0:503:0::5a",
-      "kavlan-14": "2001:660:4406:5a0:503:0::5a",
-      "kavlan-16": "2001:660:4406:7a0:503:0::5a",
-      "kavlan-18": "2001:660:4406:8a0:503:0::5a",
-      "kavlan-2": "2001:660:4406:581:3:0::5a",
-      "kavlan-20": "2001:660:4406:3a0:503:0::5a",
-      "kavlan-21": "2001:660:4406:6a0:503:0::5a",
-      "kavlan-3": "2001:660:4406:582:3:0::5a",
-      "kavlan-4": "2001:660:4406:590:3:0::5a",
-      "kavlan-5": "2001:660:4406:591:3:0::5a",
-      "kavlan-6": "2001:660:4406:592:3:0::5a",
-      "kavlan-7": "2001:660:4406:593:3:0::5a",
-      "kavlan-8": "2001:660:4406:594:3:0::5a",
-      "kavlan-9": "2001:660:4406:595:3:0::5a"
+      "kavlan-1": "2001:660:4406:580:3::5a",
+      "kavlan-11": "2001:660:4406:1a0:503::5a",
+      "kavlan-12": "2001:660:4406:2a0:503::5a",
+      "kavlan-13": "2001:660:4406:4a0:503::5a",
+      "kavlan-14": "2001:660:4406:5a0:503::5a",
+      "kavlan-16": "2001:660:4406:7a0:503::5a",
+      "kavlan-18": "2001:660:4406:8a0:503::5a",
+      "kavlan-2": "2001:660:4406:581:3::5a",
+      "kavlan-20": "2001:660:4406:3a0:503::5a",
+      "kavlan-21": "2001:660:4406:6a0:503::5a",
+      "kavlan-3": "2001:660:4406:582:3::5a",
+      "kavlan-4": "2001:660:4406:590:3::5a",
+      "kavlan-5": "2001:660:4406:591:3::5a",
+      "kavlan-6": "2001:660:4406:592:3::5a",
+      "kavlan-7": "2001:660:4406:593:3::5a",
+      "kavlan-8": "2001:660:4406:594:3::5a",
+      "kavlan-9": "2001:660:4406:595:3::5a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::5a",
-      "kavlan-11": "2001:660:4406:1a0:503:1::5a",
-      "kavlan-12": "2001:660:4406:2a0:503:1::5a",
-      "kavlan-13": "2001:660:4406:4a0:503:1::5a",
-      "kavlan-14": "2001:660:4406:5a0:503:1::5a",
-      "kavlan-16": "2001:660:4406:7a0:503:1::5a",
-      "kavlan-18": "2001:660:4406:8a0:503:1::5a",
-      "kavlan-2": "2001:660:4406:581:3:1::5a",
-      "kavlan-20": "2001:660:4406:3a0:503:1::5a",
-      "kavlan-21": "2001:660:4406:6a0:503:1::5a",
-      "kavlan-3": "2001:660:4406:582:3:1::5a",
-      "kavlan-4": "2001:660:4406:590:3:1::5a",
-      "kavlan-5": "2001:660:4406:591:3:1::5a",
-      "kavlan-6": "2001:660:4406:592:3:1::5a",
-      "kavlan-7": "2001:660:4406:593:3:1::5a",
-      "kavlan-8": "2001:660:4406:594:3:1::5a",
-      "kavlan-9": "2001:660:4406:595:3:1::5a"
+      "kavlan-1": "2001:660:4406:580:3:1:0:5a",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:5a",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:5a",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:5a",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:5a",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:5a",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:5a",
+      "kavlan-2": "2001:660:4406:581:3:1:0:5a",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:5a",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:5a",
+      "kavlan-3": "2001:660:4406:582:3:1:0:5a",
+      "kavlan-4": "2001:660:4406:590:3:1:0:5a",
+      "kavlan-5": "2001:660:4406:591:3:1:0:5a",
+      "kavlan-6": "2001:660:4406:592:3:1:0:5a",
+      "kavlan-7": "2001:660:4406:593:3:1:0:5a",
+      "kavlan-8": "2001:660:4406:594:3:1:0:5a",
+      "kavlan-9": "2001:660:4406:595:3:1:0:5a"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.90",
-      "ip6": "2001:660:4406:500:3:0::5a",
+      "ip6": "2001:660:4406:500:3::5a",
       "kavlan": true,
       "mac": "98:03:9b:b0:9c:ba",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.218",
-      "ip6": "2001:660:4406:500:3:1::5a",
+      "ip6": "2001:660:4406:500:3:1:0:5a",
       "kavlan": true,
       "mac": "98:03:9b:b0:9c:bb",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-91.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-91.json
index d2f49af549b86f2927d709db67427e34febd59e2..8de4d4a52a490215a153925b5ea11f61c7d2bea9 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-91.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-91.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::5b",
-      "kavlan-11": "2001:660:4406:1a0:503:0::5b",
-      "kavlan-12": "2001:660:4406:2a0:503:0::5b",
-      "kavlan-13": "2001:660:4406:4a0:503:0::5b",
-      "kavlan-14": "2001:660:4406:5a0:503:0::5b",
-      "kavlan-16": "2001:660:4406:7a0:503:0::5b",
-      "kavlan-18": "2001:660:4406:8a0:503:0::5b",
-      "kavlan-2": "2001:660:4406:581:3:0::5b",
-      "kavlan-20": "2001:660:4406:3a0:503:0::5b",
-      "kavlan-21": "2001:660:4406:6a0:503:0::5b",
-      "kavlan-3": "2001:660:4406:582:3:0::5b",
-      "kavlan-4": "2001:660:4406:590:3:0::5b",
-      "kavlan-5": "2001:660:4406:591:3:0::5b",
-      "kavlan-6": "2001:660:4406:592:3:0::5b",
-      "kavlan-7": "2001:660:4406:593:3:0::5b",
-      "kavlan-8": "2001:660:4406:594:3:0::5b",
-      "kavlan-9": "2001:660:4406:595:3:0::5b"
+      "kavlan-1": "2001:660:4406:580:3::5b",
+      "kavlan-11": "2001:660:4406:1a0:503::5b",
+      "kavlan-12": "2001:660:4406:2a0:503::5b",
+      "kavlan-13": "2001:660:4406:4a0:503::5b",
+      "kavlan-14": "2001:660:4406:5a0:503::5b",
+      "kavlan-16": "2001:660:4406:7a0:503::5b",
+      "kavlan-18": "2001:660:4406:8a0:503::5b",
+      "kavlan-2": "2001:660:4406:581:3::5b",
+      "kavlan-20": "2001:660:4406:3a0:503::5b",
+      "kavlan-21": "2001:660:4406:6a0:503::5b",
+      "kavlan-3": "2001:660:4406:582:3::5b",
+      "kavlan-4": "2001:660:4406:590:3::5b",
+      "kavlan-5": "2001:660:4406:591:3::5b",
+      "kavlan-6": "2001:660:4406:592:3::5b",
+      "kavlan-7": "2001:660:4406:593:3::5b",
+      "kavlan-8": "2001:660:4406:594:3::5b",
+      "kavlan-9": "2001:660:4406:595:3::5b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::5b",
-      "kavlan-11": "2001:660:4406:1a0:503:1::5b",
-      "kavlan-12": "2001:660:4406:2a0:503:1::5b",
-      "kavlan-13": "2001:660:4406:4a0:503:1::5b",
-      "kavlan-14": "2001:660:4406:5a0:503:1::5b",
-      "kavlan-16": "2001:660:4406:7a0:503:1::5b",
-      "kavlan-18": "2001:660:4406:8a0:503:1::5b",
-      "kavlan-2": "2001:660:4406:581:3:1::5b",
-      "kavlan-20": "2001:660:4406:3a0:503:1::5b",
-      "kavlan-21": "2001:660:4406:6a0:503:1::5b",
-      "kavlan-3": "2001:660:4406:582:3:1::5b",
-      "kavlan-4": "2001:660:4406:590:3:1::5b",
-      "kavlan-5": "2001:660:4406:591:3:1::5b",
-      "kavlan-6": "2001:660:4406:592:3:1::5b",
-      "kavlan-7": "2001:660:4406:593:3:1::5b",
-      "kavlan-8": "2001:660:4406:594:3:1::5b",
-      "kavlan-9": "2001:660:4406:595:3:1::5b"
+      "kavlan-1": "2001:660:4406:580:3:1:0:5b",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:5b",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:5b",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:5b",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:5b",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:5b",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:5b",
+      "kavlan-2": "2001:660:4406:581:3:1:0:5b",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:5b",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:5b",
+      "kavlan-3": "2001:660:4406:582:3:1:0:5b",
+      "kavlan-4": "2001:660:4406:590:3:1:0:5b",
+      "kavlan-5": "2001:660:4406:591:3:1:0:5b",
+      "kavlan-6": "2001:660:4406:592:3:1:0:5b",
+      "kavlan-7": "2001:660:4406:593:3:1:0:5b",
+      "kavlan-8": "2001:660:4406:594:3:1:0:5b",
+      "kavlan-9": "2001:660:4406:595:3:1:0:5b"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.91",
-      "ip6": "2001:660:4406:500:3:0::5b",
+      "ip6": "2001:660:4406:500:3::5b",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:42",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.219",
-      "ip6": "2001:660:4406:500:3:1::5b",
+      "ip6": "2001:660:4406:500:3:1:0:5b",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:43",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-92.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-92.json
index f23f13cb4666395fbf1038ce790985e00079a9c7..1df3b21f3776a5ca055c51b1862886228a09adca 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-92.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-92.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::5c",
-      "kavlan-11": "2001:660:4406:1a0:503:0::5c",
-      "kavlan-12": "2001:660:4406:2a0:503:0::5c",
-      "kavlan-13": "2001:660:4406:4a0:503:0::5c",
-      "kavlan-14": "2001:660:4406:5a0:503:0::5c",
-      "kavlan-16": "2001:660:4406:7a0:503:0::5c",
-      "kavlan-18": "2001:660:4406:8a0:503:0::5c",
-      "kavlan-2": "2001:660:4406:581:3:0::5c",
-      "kavlan-20": "2001:660:4406:3a0:503:0::5c",
-      "kavlan-21": "2001:660:4406:6a0:503:0::5c",
-      "kavlan-3": "2001:660:4406:582:3:0::5c",
-      "kavlan-4": "2001:660:4406:590:3:0::5c",
-      "kavlan-5": "2001:660:4406:591:3:0::5c",
-      "kavlan-6": "2001:660:4406:592:3:0::5c",
-      "kavlan-7": "2001:660:4406:593:3:0::5c",
-      "kavlan-8": "2001:660:4406:594:3:0::5c",
-      "kavlan-9": "2001:660:4406:595:3:0::5c"
+      "kavlan-1": "2001:660:4406:580:3::5c",
+      "kavlan-11": "2001:660:4406:1a0:503::5c",
+      "kavlan-12": "2001:660:4406:2a0:503::5c",
+      "kavlan-13": "2001:660:4406:4a0:503::5c",
+      "kavlan-14": "2001:660:4406:5a0:503::5c",
+      "kavlan-16": "2001:660:4406:7a0:503::5c",
+      "kavlan-18": "2001:660:4406:8a0:503::5c",
+      "kavlan-2": "2001:660:4406:581:3::5c",
+      "kavlan-20": "2001:660:4406:3a0:503::5c",
+      "kavlan-21": "2001:660:4406:6a0:503::5c",
+      "kavlan-3": "2001:660:4406:582:3::5c",
+      "kavlan-4": "2001:660:4406:590:3::5c",
+      "kavlan-5": "2001:660:4406:591:3::5c",
+      "kavlan-6": "2001:660:4406:592:3::5c",
+      "kavlan-7": "2001:660:4406:593:3::5c",
+      "kavlan-8": "2001:660:4406:594:3::5c",
+      "kavlan-9": "2001:660:4406:595:3::5c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::5c",
-      "kavlan-11": "2001:660:4406:1a0:503:1::5c",
-      "kavlan-12": "2001:660:4406:2a0:503:1::5c",
-      "kavlan-13": "2001:660:4406:4a0:503:1::5c",
-      "kavlan-14": "2001:660:4406:5a0:503:1::5c",
-      "kavlan-16": "2001:660:4406:7a0:503:1::5c",
-      "kavlan-18": "2001:660:4406:8a0:503:1::5c",
-      "kavlan-2": "2001:660:4406:581:3:1::5c",
-      "kavlan-20": "2001:660:4406:3a0:503:1::5c",
-      "kavlan-21": "2001:660:4406:6a0:503:1::5c",
-      "kavlan-3": "2001:660:4406:582:3:1::5c",
-      "kavlan-4": "2001:660:4406:590:3:1::5c",
-      "kavlan-5": "2001:660:4406:591:3:1::5c",
-      "kavlan-6": "2001:660:4406:592:3:1::5c",
-      "kavlan-7": "2001:660:4406:593:3:1::5c",
-      "kavlan-8": "2001:660:4406:594:3:1::5c",
-      "kavlan-9": "2001:660:4406:595:3:1::5c"
+      "kavlan-1": "2001:660:4406:580:3:1:0:5c",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:5c",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:5c",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:5c",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:5c",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:5c",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:5c",
+      "kavlan-2": "2001:660:4406:581:3:1:0:5c",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:5c",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:5c",
+      "kavlan-3": "2001:660:4406:582:3:1:0:5c",
+      "kavlan-4": "2001:660:4406:590:3:1:0:5c",
+      "kavlan-5": "2001:660:4406:591:3:1:0:5c",
+      "kavlan-6": "2001:660:4406:592:3:1:0:5c",
+      "kavlan-7": "2001:660:4406:593:3:1:0:5c",
+      "kavlan-8": "2001:660:4406:594:3:1:0:5c",
+      "kavlan-9": "2001:660:4406:595:3:1:0:5c"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.92",
-      "ip6": "2001:660:4406:500:3:0::5c",
+      "ip6": "2001:660:4406:500:3::5c",
       "kavlan": true,
       "mac": "98:03:9b:b0:ac:2e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.220",
-      "ip6": "2001:660:4406:500:3:1::5c",
+      "ip6": "2001:660:4406:500:3:1:0:5c",
       "kavlan": true,
       "mac": "98:03:9b:b0:ac:2f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-93.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-93.json
index caedb0078c0dcee701cd8e285b939cdab75204d5..6af40ea4795700471c2d1af311103cfb35d71212 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-93.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-93.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::5d",
-      "kavlan-11": "2001:660:4406:1a0:503:0::5d",
-      "kavlan-12": "2001:660:4406:2a0:503:0::5d",
-      "kavlan-13": "2001:660:4406:4a0:503:0::5d",
-      "kavlan-14": "2001:660:4406:5a0:503:0::5d",
-      "kavlan-16": "2001:660:4406:7a0:503:0::5d",
-      "kavlan-18": "2001:660:4406:8a0:503:0::5d",
-      "kavlan-2": "2001:660:4406:581:3:0::5d",
-      "kavlan-20": "2001:660:4406:3a0:503:0::5d",
-      "kavlan-21": "2001:660:4406:6a0:503:0::5d",
-      "kavlan-3": "2001:660:4406:582:3:0::5d",
-      "kavlan-4": "2001:660:4406:590:3:0::5d",
-      "kavlan-5": "2001:660:4406:591:3:0::5d",
-      "kavlan-6": "2001:660:4406:592:3:0::5d",
-      "kavlan-7": "2001:660:4406:593:3:0::5d",
-      "kavlan-8": "2001:660:4406:594:3:0::5d",
-      "kavlan-9": "2001:660:4406:595:3:0::5d"
+      "kavlan-1": "2001:660:4406:580:3::5d",
+      "kavlan-11": "2001:660:4406:1a0:503::5d",
+      "kavlan-12": "2001:660:4406:2a0:503::5d",
+      "kavlan-13": "2001:660:4406:4a0:503::5d",
+      "kavlan-14": "2001:660:4406:5a0:503::5d",
+      "kavlan-16": "2001:660:4406:7a0:503::5d",
+      "kavlan-18": "2001:660:4406:8a0:503::5d",
+      "kavlan-2": "2001:660:4406:581:3::5d",
+      "kavlan-20": "2001:660:4406:3a0:503::5d",
+      "kavlan-21": "2001:660:4406:6a0:503::5d",
+      "kavlan-3": "2001:660:4406:582:3::5d",
+      "kavlan-4": "2001:660:4406:590:3::5d",
+      "kavlan-5": "2001:660:4406:591:3::5d",
+      "kavlan-6": "2001:660:4406:592:3::5d",
+      "kavlan-7": "2001:660:4406:593:3::5d",
+      "kavlan-8": "2001:660:4406:594:3::5d",
+      "kavlan-9": "2001:660:4406:595:3::5d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::5d",
-      "kavlan-11": "2001:660:4406:1a0:503:1::5d",
-      "kavlan-12": "2001:660:4406:2a0:503:1::5d",
-      "kavlan-13": "2001:660:4406:4a0:503:1::5d",
-      "kavlan-14": "2001:660:4406:5a0:503:1::5d",
-      "kavlan-16": "2001:660:4406:7a0:503:1::5d",
-      "kavlan-18": "2001:660:4406:8a0:503:1::5d",
-      "kavlan-2": "2001:660:4406:581:3:1::5d",
-      "kavlan-20": "2001:660:4406:3a0:503:1::5d",
-      "kavlan-21": "2001:660:4406:6a0:503:1::5d",
-      "kavlan-3": "2001:660:4406:582:3:1::5d",
-      "kavlan-4": "2001:660:4406:590:3:1::5d",
-      "kavlan-5": "2001:660:4406:591:3:1::5d",
-      "kavlan-6": "2001:660:4406:592:3:1::5d",
-      "kavlan-7": "2001:660:4406:593:3:1::5d",
-      "kavlan-8": "2001:660:4406:594:3:1::5d",
-      "kavlan-9": "2001:660:4406:595:3:1::5d"
+      "kavlan-1": "2001:660:4406:580:3:1:0:5d",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:5d",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:5d",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:5d",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:5d",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:5d",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:5d",
+      "kavlan-2": "2001:660:4406:581:3:1:0:5d",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:5d",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:5d",
+      "kavlan-3": "2001:660:4406:582:3:1:0:5d",
+      "kavlan-4": "2001:660:4406:590:3:1:0:5d",
+      "kavlan-5": "2001:660:4406:591:3:1:0:5d",
+      "kavlan-6": "2001:660:4406:592:3:1:0:5d",
+      "kavlan-7": "2001:660:4406:593:3:1:0:5d",
+      "kavlan-8": "2001:660:4406:594:3:1:0:5d",
+      "kavlan-9": "2001:660:4406:595:3:1:0:5d"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.93",
-      "ip6": "2001:660:4406:500:3:0::5d",
+      "ip6": "2001:660:4406:500:3::5d",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:26",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.221",
-      "ip6": "2001:660:4406:500:3:1::5d",
+      "ip6": "2001:660:4406:500:3:1:0:5d",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:27",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-94.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-94.json
index 58f3760587c350d61d322d5d9c73bb2f241d4419..8c9c00cc1e4ae907c69731dcad71b7f726c168f7 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-94.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-94.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::5e",
-      "kavlan-11": "2001:660:4406:1a0:503:0::5e",
-      "kavlan-12": "2001:660:4406:2a0:503:0::5e",
-      "kavlan-13": "2001:660:4406:4a0:503:0::5e",
-      "kavlan-14": "2001:660:4406:5a0:503:0::5e",
-      "kavlan-16": "2001:660:4406:7a0:503:0::5e",
-      "kavlan-18": "2001:660:4406:8a0:503:0::5e",
-      "kavlan-2": "2001:660:4406:581:3:0::5e",
-      "kavlan-20": "2001:660:4406:3a0:503:0::5e",
-      "kavlan-21": "2001:660:4406:6a0:503:0::5e",
-      "kavlan-3": "2001:660:4406:582:3:0::5e",
-      "kavlan-4": "2001:660:4406:590:3:0::5e",
-      "kavlan-5": "2001:660:4406:591:3:0::5e",
-      "kavlan-6": "2001:660:4406:592:3:0::5e",
-      "kavlan-7": "2001:660:4406:593:3:0::5e",
-      "kavlan-8": "2001:660:4406:594:3:0::5e",
-      "kavlan-9": "2001:660:4406:595:3:0::5e"
+      "kavlan-1": "2001:660:4406:580:3::5e",
+      "kavlan-11": "2001:660:4406:1a0:503::5e",
+      "kavlan-12": "2001:660:4406:2a0:503::5e",
+      "kavlan-13": "2001:660:4406:4a0:503::5e",
+      "kavlan-14": "2001:660:4406:5a0:503::5e",
+      "kavlan-16": "2001:660:4406:7a0:503::5e",
+      "kavlan-18": "2001:660:4406:8a0:503::5e",
+      "kavlan-2": "2001:660:4406:581:3::5e",
+      "kavlan-20": "2001:660:4406:3a0:503::5e",
+      "kavlan-21": "2001:660:4406:6a0:503::5e",
+      "kavlan-3": "2001:660:4406:582:3::5e",
+      "kavlan-4": "2001:660:4406:590:3::5e",
+      "kavlan-5": "2001:660:4406:591:3::5e",
+      "kavlan-6": "2001:660:4406:592:3::5e",
+      "kavlan-7": "2001:660:4406:593:3::5e",
+      "kavlan-8": "2001:660:4406:594:3::5e",
+      "kavlan-9": "2001:660:4406:595:3::5e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::5e",
-      "kavlan-11": "2001:660:4406:1a0:503:1::5e",
-      "kavlan-12": "2001:660:4406:2a0:503:1::5e",
-      "kavlan-13": "2001:660:4406:4a0:503:1::5e",
-      "kavlan-14": "2001:660:4406:5a0:503:1::5e",
-      "kavlan-16": "2001:660:4406:7a0:503:1::5e",
-      "kavlan-18": "2001:660:4406:8a0:503:1::5e",
-      "kavlan-2": "2001:660:4406:581:3:1::5e",
-      "kavlan-20": "2001:660:4406:3a0:503:1::5e",
-      "kavlan-21": "2001:660:4406:6a0:503:1::5e",
-      "kavlan-3": "2001:660:4406:582:3:1::5e",
-      "kavlan-4": "2001:660:4406:590:3:1::5e",
-      "kavlan-5": "2001:660:4406:591:3:1::5e",
-      "kavlan-6": "2001:660:4406:592:3:1::5e",
-      "kavlan-7": "2001:660:4406:593:3:1::5e",
-      "kavlan-8": "2001:660:4406:594:3:1::5e",
-      "kavlan-9": "2001:660:4406:595:3:1::5e"
+      "kavlan-1": "2001:660:4406:580:3:1:0:5e",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:5e",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:5e",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:5e",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:5e",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:5e",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:5e",
+      "kavlan-2": "2001:660:4406:581:3:1:0:5e",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:5e",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:5e",
+      "kavlan-3": "2001:660:4406:582:3:1:0:5e",
+      "kavlan-4": "2001:660:4406:590:3:1:0:5e",
+      "kavlan-5": "2001:660:4406:591:3:1:0:5e",
+      "kavlan-6": "2001:660:4406:592:3:1:0:5e",
+      "kavlan-7": "2001:660:4406:593:3:1:0:5e",
+      "kavlan-8": "2001:660:4406:594:3:1:0:5e",
+      "kavlan-9": "2001:660:4406:595:3:1:0:5e"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.94",
-      "ip6": "2001:660:4406:500:3:0::5e",
+      "ip6": "2001:660:4406:500:3::5e",
       "kavlan": true,
       "mac": "98:03:9b:b0:b0:a6",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.222",
-      "ip6": "2001:660:4406:500:3:1::5e",
+      "ip6": "2001:660:4406:500:3:1:0:5e",
       "kavlan": true,
       "mac": "98:03:9b:b0:b0:a7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-95.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-95.json
index 8fba116e99458133da3ae4dde420e7d31944e865..8bc6ff92a00e494b4c255ba5d4245a829629ec41 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-95.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-95.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::5f",
-      "kavlan-11": "2001:660:4406:1a0:503:0::5f",
-      "kavlan-12": "2001:660:4406:2a0:503:0::5f",
-      "kavlan-13": "2001:660:4406:4a0:503:0::5f",
-      "kavlan-14": "2001:660:4406:5a0:503:0::5f",
-      "kavlan-16": "2001:660:4406:7a0:503:0::5f",
-      "kavlan-18": "2001:660:4406:8a0:503:0::5f",
-      "kavlan-2": "2001:660:4406:581:3:0::5f",
-      "kavlan-20": "2001:660:4406:3a0:503:0::5f",
-      "kavlan-21": "2001:660:4406:6a0:503:0::5f",
-      "kavlan-3": "2001:660:4406:582:3:0::5f",
-      "kavlan-4": "2001:660:4406:590:3:0::5f",
-      "kavlan-5": "2001:660:4406:591:3:0::5f",
-      "kavlan-6": "2001:660:4406:592:3:0::5f",
-      "kavlan-7": "2001:660:4406:593:3:0::5f",
-      "kavlan-8": "2001:660:4406:594:3:0::5f",
-      "kavlan-9": "2001:660:4406:595:3:0::5f"
+      "kavlan-1": "2001:660:4406:580:3::5f",
+      "kavlan-11": "2001:660:4406:1a0:503::5f",
+      "kavlan-12": "2001:660:4406:2a0:503::5f",
+      "kavlan-13": "2001:660:4406:4a0:503::5f",
+      "kavlan-14": "2001:660:4406:5a0:503::5f",
+      "kavlan-16": "2001:660:4406:7a0:503::5f",
+      "kavlan-18": "2001:660:4406:8a0:503::5f",
+      "kavlan-2": "2001:660:4406:581:3::5f",
+      "kavlan-20": "2001:660:4406:3a0:503::5f",
+      "kavlan-21": "2001:660:4406:6a0:503::5f",
+      "kavlan-3": "2001:660:4406:582:3::5f",
+      "kavlan-4": "2001:660:4406:590:3::5f",
+      "kavlan-5": "2001:660:4406:591:3::5f",
+      "kavlan-6": "2001:660:4406:592:3::5f",
+      "kavlan-7": "2001:660:4406:593:3::5f",
+      "kavlan-8": "2001:660:4406:594:3::5f",
+      "kavlan-9": "2001:660:4406:595:3::5f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::5f",
-      "kavlan-11": "2001:660:4406:1a0:503:1::5f",
-      "kavlan-12": "2001:660:4406:2a0:503:1::5f",
-      "kavlan-13": "2001:660:4406:4a0:503:1::5f",
-      "kavlan-14": "2001:660:4406:5a0:503:1::5f",
-      "kavlan-16": "2001:660:4406:7a0:503:1::5f",
-      "kavlan-18": "2001:660:4406:8a0:503:1::5f",
-      "kavlan-2": "2001:660:4406:581:3:1::5f",
-      "kavlan-20": "2001:660:4406:3a0:503:1::5f",
-      "kavlan-21": "2001:660:4406:6a0:503:1::5f",
-      "kavlan-3": "2001:660:4406:582:3:1::5f",
-      "kavlan-4": "2001:660:4406:590:3:1::5f",
-      "kavlan-5": "2001:660:4406:591:3:1::5f",
-      "kavlan-6": "2001:660:4406:592:3:1::5f",
-      "kavlan-7": "2001:660:4406:593:3:1::5f",
-      "kavlan-8": "2001:660:4406:594:3:1::5f",
-      "kavlan-9": "2001:660:4406:595:3:1::5f"
+      "kavlan-1": "2001:660:4406:580:3:1:0:5f",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:5f",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:5f",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:5f",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:5f",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:5f",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:5f",
+      "kavlan-2": "2001:660:4406:581:3:1:0:5f",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:5f",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:5f",
+      "kavlan-3": "2001:660:4406:582:3:1:0:5f",
+      "kavlan-4": "2001:660:4406:590:3:1:0:5f",
+      "kavlan-5": "2001:660:4406:591:3:1:0:5f",
+      "kavlan-6": "2001:660:4406:592:3:1:0:5f",
+      "kavlan-7": "2001:660:4406:593:3:1:0:5f",
+      "kavlan-8": "2001:660:4406:594:3:1:0:5f",
+      "kavlan-9": "2001:660:4406:595:3:1:0:5f"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.95",
-      "ip6": "2001:660:4406:500:3:0::5f",
+      "ip6": "2001:660:4406:500:3::5f",
       "kavlan": true,
       "mac": "98:03:9b:b0:6b:2a",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.223",
-      "ip6": "2001:660:4406:500:3:1::5f",
+      "ip6": "2001:660:4406:500:3:1:0:5f",
       "kavlan": true,
       "mac": "98:03:9b:b0:6b:2b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-96.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-96.json
index e86333ee014ec948da361b8fd19e14c1ae33c5a7..27c4c9fd24d7eab5d30f221cca5f44c38accb28f 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-96.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-96.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::60",
-      "kavlan-11": "2001:660:4406:1a0:503:0::60",
-      "kavlan-12": "2001:660:4406:2a0:503:0::60",
-      "kavlan-13": "2001:660:4406:4a0:503:0::60",
-      "kavlan-14": "2001:660:4406:5a0:503:0::60",
-      "kavlan-16": "2001:660:4406:7a0:503:0::60",
-      "kavlan-18": "2001:660:4406:8a0:503:0::60",
-      "kavlan-2": "2001:660:4406:581:3:0::60",
-      "kavlan-20": "2001:660:4406:3a0:503:0::60",
-      "kavlan-21": "2001:660:4406:6a0:503:0::60",
-      "kavlan-3": "2001:660:4406:582:3:0::60",
-      "kavlan-4": "2001:660:4406:590:3:0::60",
-      "kavlan-5": "2001:660:4406:591:3:0::60",
-      "kavlan-6": "2001:660:4406:592:3:0::60",
-      "kavlan-7": "2001:660:4406:593:3:0::60",
-      "kavlan-8": "2001:660:4406:594:3:0::60",
-      "kavlan-9": "2001:660:4406:595:3:0::60"
+      "kavlan-1": "2001:660:4406:580:3::60",
+      "kavlan-11": "2001:660:4406:1a0:503::60",
+      "kavlan-12": "2001:660:4406:2a0:503::60",
+      "kavlan-13": "2001:660:4406:4a0:503::60",
+      "kavlan-14": "2001:660:4406:5a0:503::60",
+      "kavlan-16": "2001:660:4406:7a0:503::60",
+      "kavlan-18": "2001:660:4406:8a0:503::60",
+      "kavlan-2": "2001:660:4406:581:3::60",
+      "kavlan-20": "2001:660:4406:3a0:503::60",
+      "kavlan-21": "2001:660:4406:6a0:503::60",
+      "kavlan-3": "2001:660:4406:582:3::60",
+      "kavlan-4": "2001:660:4406:590:3::60",
+      "kavlan-5": "2001:660:4406:591:3::60",
+      "kavlan-6": "2001:660:4406:592:3::60",
+      "kavlan-7": "2001:660:4406:593:3::60",
+      "kavlan-8": "2001:660:4406:594:3::60",
+      "kavlan-9": "2001:660:4406:595:3::60"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::60",
-      "kavlan-11": "2001:660:4406:1a0:503:1::60",
-      "kavlan-12": "2001:660:4406:2a0:503:1::60",
-      "kavlan-13": "2001:660:4406:4a0:503:1::60",
-      "kavlan-14": "2001:660:4406:5a0:503:1::60",
-      "kavlan-16": "2001:660:4406:7a0:503:1::60",
-      "kavlan-18": "2001:660:4406:8a0:503:1::60",
-      "kavlan-2": "2001:660:4406:581:3:1::60",
-      "kavlan-20": "2001:660:4406:3a0:503:1::60",
-      "kavlan-21": "2001:660:4406:6a0:503:1::60",
-      "kavlan-3": "2001:660:4406:582:3:1::60",
-      "kavlan-4": "2001:660:4406:590:3:1::60",
-      "kavlan-5": "2001:660:4406:591:3:1::60",
-      "kavlan-6": "2001:660:4406:592:3:1::60",
-      "kavlan-7": "2001:660:4406:593:3:1::60",
-      "kavlan-8": "2001:660:4406:594:3:1::60",
-      "kavlan-9": "2001:660:4406:595:3:1::60"
+      "kavlan-1": "2001:660:4406:580:3:1:0:60",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:60",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:60",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:60",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:60",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:60",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:60",
+      "kavlan-2": "2001:660:4406:581:3:1:0:60",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:60",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:60",
+      "kavlan-3": "2001:660:4406:582:3:1:0:60",
+      "kavlan-4": "2001:660:4406:590:3:1:0:60",
+      "kavlan-5": "2001:660:4406:591:3:1:0:60",
+      "kavlan-6": "2001:660:4406:592:3:1:0:60",
+      "kavlan-7": "2001:660:4406:593:3:1:0:60",
+      "kavlan-8": "2001:660:4406:594:3:1:0:60",
+      "kavlan-9": "2001:660:4406:595:3:1:0:60"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.96",
-      "ip6": "2001:660:4406:500:3:0::60",
+      "ip6": "2001:660:4406:500:3::60",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:1a",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.224",
-      "ip6": "2001:660:4406:500:3:1::60",
+      "ip6": "2001:660:4406:500:3:1:0:60",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:1b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-97.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-97.json
index 6b749086f3feb14dc3b81c46a11835f4619c762d..47995a57a589b7248a4eabbf9f295d6f118c824d 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-97.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-97.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::61",
-      "kavlan-11": "2001:660:4406:1a0:503:0::61",
-      "kavlan-12": "2001:660:4406:2a0:503:0::61",
-      "kavlan-13": "2001:660:4406:4a0:503:0::61",
-      "kavlan-14": "2001:660:4406:5a0:503:0::61",
-      "kavlan-16": "2001:660:4406:7a0:503:0::61",
-      "kavlan-18": "2001:660:4406:8a0:503:0::61",
-      "kavlan-2": "2001:660:4406:581:3:0::61",
-      "kavlan-20": "2001:660:4406:3a0:503:0::61",
-      "kavlan-21": "2001:660:4406:6a0:503:0::61",
-      "kavlan-3": "2001:660:4406:582:3:0::61",
-      "kavlan-4": "2001:660:4406:590:3:0::61",
-      "kavlan-5": "2001:660:4406:591:3:0::61",
-      "kavlan-6": "2001:660:4406:592:3:0::61",
-      "kavlan-7": "2001:660:4406:593:3:0::61",
-      "kavlan-8": "2001:660:4406:594:3:0::61",
-      "kavlan-9": "2001:660:4406:595:3:0::61"
+      "kavlan-1": "2001:660:4406:580:3::61",
+      "kavlan-11": "2001:660:4406:1a0:503::61",
+      "kavlan-12": "2001:660:4406:2a0:503::61",
+      "kavlan-13": "2001:660:4406:4a0:503::61",
+      "kavlan-14": "2001:660:4406:5a0:503::61",
+      "kavlan-16": "2001:660:4406:7a0:503::61",
+      "kavlan-18": "2001:660:4406:8a0:503::61",
+      "kavlan-2": "2001:660:4406:581:3::61",
+      "kavlan-20": "2001:660:4406:3a0:503::61",
+      "kavlan-21": "2001:660:4406:6a0:503::61",
+      "kavlan-3": "2001:660:4406:582:3::61",
+      "kavlan-4": "2001:660:4406:590:3::61",
+      "kavlan-5": "2001:660:4406:591:3::61",
+      "kavlan-6": "2001:660:4406:592:3::61",
+      "kavlan-7": "2001:660:4406:593:3::61",
+      "kavlan-8": "2001:660:4406:594:3::61",
+      "kavlan-9": "2001:660:4406:595:3::61"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::61",
-      "kavlan-11": "2001:660:4406:1a0:503:1::61",
-      "kavlan-12": "2001:660:4406:2a0:503:1::61",
-      "kavlan-13": "2001:660:4406:4a0:503:1::61",
-      "kavlan-14": "2001:660:4406:5a0:503:1::61",
-      "kavlan-16": "2001:660:4406:7a0:503:1::61",
-      "kavlan-18": "2001:660:4406:8a0:503:1::61",
-      "kavlan-2": "2001:660:4406:581:3:1::61",
-      "kavlan-20": "2001:660:4406:3a0:503:1::61",
-      "kavlan-21": "2001:660:4406:6a0:503:1::61",
-      "kavlan-3": "2001:660:4406:582:3:1::61",
-      "kavlan-4": "2001:660:4406:590:3:1::61",
-      "kavlan-5": "2001:660:4406:591:3:1::61",
-      "kavlan-6": "2001:660:4406:592:3:1::61",
-      "kavlan-7": "2001:660:4406:593:3:1::61",
-      "kavlan-8": "2001:660:4406:594:3:1::61",
-      "kavlan-9": "2001:660:4406:595:3:1::61"
+      "kavlan-1": "2001:660:4406:580:3:1:0:61",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:61",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:61",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:61",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:61",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:61",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:61",
+      "kavlan-2": "2001:660:4406:581:3:1:0:61",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:61",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:61",
+      "kavlan-3": "2001:660:4406:582:3:1:0:61",
+      "kavlan-4": "2001:660:4406:590:3:1:0:61",
+      "kavlan-5": "2001:660:4406:591:3:1:0:61",
+      "kavlan-6": "2001:660:4406:592:3:1:0:61",
+      "kavlan-7": "2001:660:4406:593:3:1:0:61",
+      "kavlan-8": "2001:660:4406:594:3:1:0:61",
+      "kavlan-9": "2001:660:4406:595:3:1:0:61"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.97",
-      "ip6": "2001:660:4406:500:3:0::61",
+      "ip6": "2001:660:4406:500:3::61",
       "kavlan": true,
       "mac": "98:03:9b:b0:9b:7a",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.225",
-      "ip6": "2001:660:4406:500:3:1::61",
+      "ip6": "2001:660:4406:500:3:1:0:61",
       "kavlan": true,
       "mac": "98:03:9b:b0:9b:7b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-98.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-98.json
index 11c57df42041bb18ca39a60329cadbb5b8eefdf0..d4b630424588571e0b5da31dd87818fbbf875890 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-98.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-98.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::62",
-      "kavlan-11": "2001:660:4406:1a0:503:0::62",
-      "kavlan-12": "2001:660:4406:2a0:503:0::62",
-      "kavlan-13": "2001:660:4406:4a0:503:0::62",
-      "kavlan-14": "2001:660:4406:5a0:503:0::62",
-      "kavlan-16": "2001:660:4406:7a0:503:0::62",
-      "kavlan-18": "2001:660:4406:8a0:503:0::62",
-      "kavlan-2": "2001:660:4406:581:3:0::62",
-      "kavlan-20": "2001:660:4406:3a0:503:0::62",
-      "kavlan-21": "2001:660:4406:6a0:503:0::62",
-      "kavlan-3": "2001:660:4406:582:3:0::62",
-      "kavlan-4": "2001:660:4406:590:3:0::62",
-      "kavlan-5": "2001:660:4406:591:3:0::62",
-      "kavlan-6": "2001:660:4406:592:3:0::62",
-      "kavlan-7": "2001:660:4406:593:3:0::62",
-      "kavlan-8": "2001:660:4406:594:3:0::62",
-      "kavlan-9": "2001:660:4406:595:3:0::62"
+      "kavlan-1": "2001:660:4406:580:3::62",
+      "kavlan-11": "2001:660:4406:1a0:503::62",
+      "kavlan-12": "2001:660:4406:2a0:503::62",
+      "kavlan-13": "2001:660:4406:4a0:503::62",
+      "kavlan-14": "2001:660:4406:5a0:503::62",
+      "kavlan-16": "2001:660:4406:7a0:503::62",
+      "kavlan-18": "2001:660:4406:8a0:503::62",
+      "kavlan-2": "2001:660:4406:581:3::62",
+      "kavlan-20": "2001:660:4406:3a0:503::62",
+      "kavlan-21": "2001:660:4406:6a0:503::62",
+      "kavlan-3": "2001:660:4406:582:3::62",
+      "kavlan-4": "2001:660:4406:590:3::62",
+      "kavlan-5": "2001:660:4406:591:3::62",
+      "kavlan-6": "2001:660:4406:592:3::62",
+      "kavlan-7": "2001:660:4406:593:3::62",
+      "kavlan-8": "2001:660:4406:594:3::62",
+      "kavlan-9": "2001:660:4406:595:3::62"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::62",
-      "kavlan-11": "2001:660:4406:1a0:503:1::62",
-      "kavlan-12": "2001:660:4406:2a0:503:1::62",
-      "kavlan-13": "2001:660:4406:4a0:503:1::62",
-      "kavlan-14": "2001:660:4406:5a0:503:1::62",
-      "kavlan-16": "2001:660:4406:7a0:503:1::62",
-      "kavlan-18": "2001:660:4406:8a0:503:1::62",
-      "kavlan-2": "2001:660:4406:581:3:1::62",
-      "kavlan-20": "2001:660:4406:3a0:503:1::62",
-      "kavlan-21": "2001:660:4406:6a0:503:1::62",
-      "kavlan-3": "2001:660:4406:582:3:1::62",
-      "kavlan-4": "2001:660:4406:590:3:1::62",
-      "kavlan-5": "2001:660:4406:591:3:1::62",
-      "kavlan-6": "2001:660:4406:592:3:1::62",
-      "kavlan-7": "2001:660:4406:593:3:1::62",
-      "kavlan-8": "2001:660:4406:594:3:1::62",
-      "kavlan-9": "2001:660:4406:595:3:1::62"
+      "kavlan-1": "2001:660:4406:580:3:1:0:62",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:62",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:62",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:62",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:62",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:62",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:62",
+      "kavlan-2": "2001:660:4406:581:3:1:0:62",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:62",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:62",
+      "kavlan-3": "2001:660:4406:582:3:1:0:62",
+      "kavlan-4": "2001:660:4406:590:3:1:0:62",
+      "kavlan-5": "2001:660:4406:591:3:1:0:62",
+      "kavlan-6": "2001:660:4406:592:3:1:0:62",
+      "kavlan-7": "2001:660:4406:593:3:1:0:62",
+      "kavlan-8": "2001:660:4406:594:3:1:0:62",
+      "kavlan-9": "2001:660:4406:595:3:1:0:62"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.98",
-      "ip6": "2001:660:4406:500:3:0::62",
+      "ip6": "2001:660:4406:500:3::62",
       "kavlan": true,
       "mac": "98:03:9b:b0:ac:de",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.226",
-      "ip6": "2001:660:4406:500:3:1::62",
+      "ip6": "2001:660:4406:500:3:1:0:62",
       "kavlan": true,
       "mac": "98:03:9b:b0:ac:df",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-99.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-99.json
index 98f9d34a95fb8e910b9e9aeb774c8537741e6836..6895926b95b911ee36104ece1afa16d8246524a6 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-99.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-99.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3:0::63",
-      "kavlan-11": "2001:660:4406:1a0:503:0::63",
-      "kavlan-12": "2001:660:4406:2a0:503:0::63",
-      "kavlan-13": "2001:660:4406:4a0:503:0::63",
-      "kavlan-14": "2001:660:4406:5a0:503:0::63",
-      "kavlan-16": "2001:660:4406:7a0:503:0::63",
-      "kavlan-18": "2001:660:4406:8a0:503:0::63",
-      "kavlan-2": "2001:660:4406:581:3:0::63",
-      "kavlan-20": "2001:660:4406:3a0:503:0::63",
-      "kavlan-21": "2001:660:4406:6a0:503:0::63",
-      "kavlan-3": "2001:660:4406:582:3:0::63",
-      "kavlan-4": "2001:660:4406:590:3:0::63",
-      "kavlan-5": "2001:660:4406:591:3:0::63",
-      "kavlan-6": "2001:660:4406:592:3:0::63",
-      "kavlan-7": "2001:660:4406:593:3:0::63",
-      "kavlan-8": "2001:660:4406:594:3:0::63",
-      "kavlan-9": "2001:660:4406:595:3:0::63"
+      "kavlan-1": "2001:660:4406:580:3::63",
+      "kavlan-11": "2001:660:4406:1a0:503::63",
+      "kavlan-12": "2001:660:4406:2a0:503::63",
+      "kavlan-13": "2001:660:4406:4a0:503::63",
+      "kavlan-14": "2001:660:4406:5a0:503::63",
+      "kavlan-16": "2001:660:4406:7a0:503::63",
+      "kavlan-18": "2001:660:4406:8a0:503::63",
+      "kavlan-2": "2001:660:4406:581:3::63",
+      "kavlan-20": "2001:660:4406:3a0:503::63",
+      "kavlan-21": "2001:660:4406:6a0:503::63",
+      "kavlan-3": "2001:660:4406:582:3::63",
+      "kavlan-4": "2001:660:4406:590:3::63",
+      "kavlan-5": "2001:660:4406:591:3::63",
+      "kavlan-6": "2001:660:4406:592:3::63",
+      "kavlan-7": "2001:660:4406:593:3::63",
+      "kavlan-8": "2001:660:4406:594:3::63",
+      "kavlan-9": "2001:660:4406:595:3::63"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:580:3:1::63",
-      "kavlan-11": "2001:660:4406:1a0:503:1::63",
-      "kavlan-12": "2001:660:4406:2a0:503:1::63",
-      "kavlan-13": "2001:660:4406:4a0:503:1::63",
-      "kavlan-14": "2001:660:4406:5a0:503:1::63",
-      "kavlan-16": "2001:660:4406:7a0:503:1::63",
-      "kavlan-18": "2001:660:4406:8a0:503:1::63",
-      "kavlan-2": "2001:660:4406:581:3:1::63",
-      "kavlan-20": "2001:660:4406:3a0:503:1::63",
-      "kavlan-21": "2001:660:4406:6a0:503:1::63",
-      "kavlan-3": "2001:660:4406:582:3:1::63",
-      "kavlan-4": "2001:660:4406:590:3:1::63",
-      "kavlan-5": "2001:660:4406:591:3:1::63",
-      "kavlan-6": "2001:660:4406:592:3:1::63",
-      "kavlan-7": "2001:660:4406:593:3:1::63",
-      "kavlan-8": "2001:660:4406:594:3:1::63",
-      "kavlan-9": "2001:660:4406:595:3:1::63"
+      "kavlan-1": "2001:660:4406:580:3:1:0:63",
+      "kavlan-11": "2001:660:4406:1a0:503:1:0:63",
+      "kavlan-12": "2001:660:4406:2a0:503:1:0:63",
+      "kavlan-13": "2001:660:4406:4a0:503:1:0:63",
+      "kavlan-14": "2001:660:4406:5a0:503:1:0:63",
+      "kavlan-16": "2001:660:4406:7a0:503:1:0:63",
+      "kavlan-18": "2001:660:4406:8a0:503:1:0:63",
+      "kavlan-2": "2001:660:4406:581:3:1:0:63",
+      "kavlan-20": "2001:660:4406:3a0:503:1:0:63",
+      "kavlan-21": "2001:660:4406:6a0:503:1:0:63",
+      "kavlan-3": "2001:660:4406:582:3:1:0:63",
+      "kavlan-4": "2001:660:4406:590:3:1:0:63",
+      "kavlan-5": "2001:660:4406:591:3:1:0:63",
+      "kavlan-6": "2001:660:4406:592:3:1:0:63",
+      "kavlan-7": "2001:660:4406:593:3:1:0:63",
+      "kavlan-8": "2001:660:4406:594:3:1:0:63",
+      "kavlan-9": "2001:660:4406:595:3:1:0:63"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.99",
-      "ip6": "2001:660:4406:500:3:0::63",
+      "ip6": "2001:660:4406:500:3::63",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:4e",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.227",
-      "ip6": "2001:660:4406:500:3:1::63",
+      "ip6": "2001:660:4406:500:3:1:0:63",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:4f",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-1.json b/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-1.json
index 349b882a6914b6d38bffe0078c0a029c76591ab9..b761b879f4df1df02db7d5e9d96149e9f6183e2c 100644
--- a/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-1.json
+++ b/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-1.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:10:0::1",
-      "kavlan-11": "2001:660:4406:1a0:510:0::1",
-      "kavlan-12": "2001:660:4406:2a0:510:0::1",
-      "kavlan-13": "2001:660:4406:4a0:510:0::1",
-      "kavlan-14": "2001:660:4406:5a0:510:0::1",
-      "kavlan-16": "2001:660:4406:7a0:510:0::1",
-      "kavlan-18": "2001:660:4406:8a0:510:0::1",
-      "kavlan-2": "2001:660:4406:581:10:0::1",
-      "kavlan-20": "2001:660:4406:3a0:510:0::1",
-      "kavlan-21": "2001:660:4406:6a0:510:0::1",
-      "kavlan-3": "2001:660:4406:582:10:0::1",
-      "kavlan-4": "2001:660:4406:590:10:0::1",
-      "kavlan-5": "2001:660:4406:591:10:0::1",
-      "kavlan-6": "2001:660:4406:592:10:0::1",
-      "kavlan-7": "2001:660:4406:593:10:0::1",
-      "kavlan-8": "2001:660:4406:594:10:0::1",
-      "kavlan-9": "2001:660:4406:595:10:0::1"
+      "kavlan-1": "2001:660:4406:580:10::1",
+      "kavlan-11": "2001:660:4406:1a0:510::1",
+      "kavlan-12": "2001:660:4406:2a0:510::1",
+      "kavlan-13": "2001:660:4406:4a0:510::1",
+      "kavlan-14": "2001:660:4406:5a0:510::1",
+      "kavlan-16": "2001:660:4406:7a0:510::1",
+      "kavlan-18": "2001:660:4406:8a0:510::1",
+      "kavlan-2": "2001:660:4406:581:10::1",
+      "kavlan-20": "2001:660:4406:3a0:510::1",
+      "kavlan-21": "2001:660:4406:6a0:510::1",
+      "kavlan-3": "2001:660:4406:582:10::1",
+      "kavlan-4": "2001:660:4406:590:10::1",
+      "kavlan-5": "2001:660:4406:591:10::1",
+      "kavlan-6": "2001:660:4406:592:10::1",
+      "kavlan-7": "2001:660:4406:593:10::1",
+      "kavlan-8": "2001:660:4406:594:10::1",
+      "kavlan-9": "2001:660:4406:595:10::1"
     }
   },
   "main_memory": {
@@ -124,7 +124,7 @@
       "firmware_version": "16.27.6120 (DEL0000000016)",
       "interface": "Ethernet",
       "ip": "172.16.79.1",
-      "ip6": "2001:660:4406:500:10:0::1",
+      "ip6": "2001:660:4406:500:10::1",
       "kavlan": true,
       "mac": "04:3f:72:cd:c2:18",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-2.json b/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-2.json
index 35b240d065f206d3940a029bf940202b3a589e03..76f9e9809f5902f59bde53a9871c5c4e1d8cda11 100644
--- a/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-2.json
+++ b/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-2.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:10:0::2",
-      "kavlan-11": "2001:660:4406:1a0:510:0::2",
-      "kavlan-12": "2001:660:4406:2a0:510:0::2",
-      "kavlan-13": "2001:660:4406:4a0:510:0::2",
-      "kavlan-14": "2001:660:4406:5a0:510:0::2",
-      "kavlan-16": "2001:660:4406:7a0:510:0::2",
-      "kavlan-18": "2001:660:4406:8a0:510:0::2",
-      "kavlan-2": "2001:660:4406:581:10:0::2",
-      "kavlan-20": "2001:660:4406:3a0:510:0::2",
-      "kavlan-21": "2001:660:4406:6a0:510:0::2",
-      "kavlan-3": "2001:660:4406:582:10:0::2",
-      "kavlan-4": "2001:660:4406:590:10:0::2",
-      "kavlan-5": "2001:660:4406:591:10:0::2",
-      "kavlan-6": "2001:660:4406:592:10:0::2",
-      "kavlan-7": "2001:660:4406:593:10:0::2",
-      "kavlan-8": "2001:660:4406:594:10:0::2",
-      "kavlan-9": "2001:660:4406:595:10:0::2"
+      "kavlan-1": "2001:660:4406:580:10::2",
+      "kavlan-11": "2001:660:4406:1a0:510::2",
+      "kavlan-12": "2001:660:4406:2a0:510::2",
+      "kavlan-13": "2001:660:4406:4a0:510::2",
+      "kavlan-14": "2001:660:4406:5a0:510::2",
+      "kavlan-16": "2001:660:4406:7a0:510::2",
+      "kavlan-18": "2001:660:4406:8a0:510::2",
+      "kavlan-2": "2001:660:4406:581:10::2",
+      "kavlan-20": "2001:660:4406:3a0:510::2",
+      "kavlan-21": "2001:660:4406:6a0:510::2",
+      "kavlan-3": "2001:660:4406:582:10::2",
+      "kavlan-4": "2001:660:4406:590:10::2",
+      "kavlan-5": "2001:660:4406:591:10::2",
+      "kavlan-6": "2001:660:4406:592:10::2",
+      "kavlan-7": "2001:660:4406:593:10::2",
+      "kavlan-8": "2001:660:4406:594:10::2",
+      "kavlan-9": "2001:660:4406:595:10::2"
     }
   },
   "main_memory": {
@@ -124,7 +124,7 @@
       "firmware_version": "16.27.6120 (DEL0000000016)",
       "interface": "Ethernet",
       "ip": "172.16.79.2",
-      "ip6": "2001:660:4406:500:10:0::2",
+      "ip6": "2001:660:4406:500:10::2",
       "kavlan": true,
       "mac": "04:3f:72:da:4f:20",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-1.json b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-1.json
index 6ad4dc831faf164a07441f447da567618c1da73b..73f06f8d5a15a1de7b855c79cca4a2312ef67be3 100644
--- a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-1.json
+++ b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-1.json
@@ -83,23 +83,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:e:0::1",
-      "kavlan-11": "2001:660:4406:1a0:50e:0::1",
-      "kavlan-12": "2001:660:4406:2a0:50e:0::1",
-      "kavlan-13": "2001:660:4406:4a0:50e:0::1",
-      "kavlan-14": "2001:660:4406:5a0:50e:0::1",
-      "kavlan-16": "2001:660:4406:7a0:50e:0::1",
-      "kavlan-18": "2001:660:4406:8a0:50e:0::1",
-      "kavlan-2": "2001:660:4406:581:e:0::1",
-      "kavlan-20": "2001:660:4406:3a0:50e:0::1",
-      "kavlan-21": "2001:660:4406:6a0:50e:0::1",
-      "kavlan-3": "2001:660:4406:582:e:0::1",
-      "kavlan-4": "2001:660:4406:590:e:0::1",
-      "kavlan-5": "2001:660:4406:591:e:0::1",
-      "kavlan-6": "2001:660:4406:592:e:0::1",
-      "kavlan-7": "2001:660:4406:593:e:0::1",
-      "kavlan-8": "2001:660:4406:594:e:0::1",
-      "kavlan-9": "2001:660:4406:595:e:0::1"
+      "kavlan-1": "2001:660:4406:580:e::1",
+      "kavlan-11": "2001:660:4406:1a0:50e::1",
+      "kavlan-12": "2001:660:4406:2a0:50e::1",
+      "kavlan-13": "2001:660:4406:4a0:50e::1",
+      "kavlan-14": "2001:660:4406:5a0:50e::1",
+      "kavlan-16": "2001:660:4406:7a0:50e::1",
+      "kavlan-18": "2001:660:4406:8a0:50e::1",
+      "kavlan-2": "2001:660:4406:581:e::1",
+      "kavlan-20": "2001:660:4406:3a0:50e::1",
+      "kavlan-21": "2001:660:4406:6a0:50e::1",
+      "kavlan-3": "2001:660:4406:582:e::1",
+      "kavlan-4": "2001:660:4406:590:e::1",
+      "kavlan-5": "2001:660:4406:591:e::1",
+      "kavlan-6": "2001:660:4406:592:e::1",
+      "kavlan-7": "2001:660:4406:593:e::1",
+      "kavlan-8": "2001:660:4406:594:e::1",
+      "kavlan-9": "2001:660:4406:595:e::1"
     }
   },
   "main_memory": {
@@ -116,7 +116,7 @@
       "firmware_version": "7.10 0x8000519f 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.77.1",
-      "ip6": "2001:660:4406:500:e:0::1",
+      "ip6": "2001:660:4406:500:e::1",
       "kavlan": true,
       "mac": "e4:43:4b:a5:71:dc",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-2.json b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-2.json
index 0c03cb461307168869ec6147225aff884e199d48..4c8c5dd54ae4a22d58b8a7b7584648ed14850c43 100644
--- a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-2.json
+++ b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-2.json
@@ -83,23 +83,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:e:0::2",
-      "kavlan-11": "2001:660:4406:1a0:50e:0::2",
-      "kavlan-12": "2001:660:4406:2a0:50e:0::2",
-      "kavlan-13": "2001:660:4406:4a0:50e:0::2",
-      "kavlan-14": "2001:660:4406:5a0:50e:0::2",
-      "kavlan-16": "2001:660:4406:7a0:50e:0::2",
-      "kavlan-18": "2001:660:4406:8a0:50e:0::2",
-      "kavlan-2": "2001:660:4406:581:e:0::2",
-      "kavlan-20": "2001:660:4406:3a0:50e:0::2",
-      "kavlan-21": "2001:660:4406:6a0:50e:0::2",
-      "kavlan-3": "2001:660:4406:582:e:0::2",
-      "kavlan-4": "2001:660:4406:590:e:0::2",
-      "kavlan-5": "2001:660:4406:591:e:0::2",
-      "kavlan-6": "2001:660:4406:592:e:0::2",
-      "kavlan-7": "2001:660:4406:593:e:0::2",
-      "kavlan-8": "2001:660:4406:594:e:0::2",
-      "kavlan-9": "2001:660:4406:595:e:0::2"
+      "kavlan-1": "2001:660:4406:580:e::2",
+      "kavlan-11": "2001:660:4406:1a0:50e::2",
+      "kavlan-12": "2001:660:4406:2a0:50e::2",
+      "kavlan-13": "2001:660:4406:4a0:50e::2",
+      "kavlan-14": "2001:660:4406:5a0:50e::2",
+      "kavlan-16": "2001:660:4406:7a0:50e::2",
+      "kavlan-18": "2001:660:4406:8a0:50e::2",
+      "kavlan-2": "2001:660:4406:581:e::2",
+      "kavlan-20": "2001:660:4406:3a0:50e::2",
+      "kavlan-21": "2001:660:4406:6a0:50e::2",
+      "kavlan-3": "2001:660:4406:582:e::2",
+      "kavlan-4": "2001:660:4406:590:e::2",
+      "kavlan-5": "2001:660:4406:591:e::2",
+      "kavlan-6": "2001:660:4406:592:e::2",
+      "kavlan-7": "2001:660:4406:593:e::2",
+      "kavlan-8": "2001:660:4406:594:e::2",
+      "kavlan-9": "2001:660:4406:595:e::2"
     }
   },
   "main_memory": {
@@ -116,7 +116,7 @@
       "firmware_version": "7.10 0x8000519f 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.77.2",
-      "ip6": "2001:660:4406:500:e:0::2",
+      "ip6": "2001:660:4406:500:e::2",
       "kavlan": true,
       "mac": "e4:43:4b:a5:b1:10",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-3.json b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-3.json
index 8c3a95717b5ab9319232a03ecb43325f1567974c..644fc3f744a7435017591525c7ce4a8a031c8a16 100644
--- a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-3.json
+++ b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-3.json
@@ -83,23 +83,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:e:0::3",
-      "kavlan-11": "2001:660:4406:1a0:50e:0::3",
-      "kavlan-12": "2001:660:4406:2a0:50e:0::3",
-      "kavlan-13": "2001:660:4406:4a0:50e:0::3",
-      "kavlan-14": "2001:660:4406:5a0:50e:0::3",
-      "kavlan-16": "2001:660:4406:7a0:50e:0::3",
-      "kavlan-18": "2001:660:4406:8a0:50e:0::3",
-      "kavlan-2": "2001:660:4406:581:e:0::3",
-      "kavlan-20": "2001:660:4406:3a0:50e:0::3",
-      "kavlan-21": "2001:660:4406:6a0:50e:0::3",
-      "kavlan-3": "2001:660:4406:582:e:0::3",
-      "kavlan-4": "2001:660:4406:590:e:0::3",
-      "kavlan-5": "2001:660:4406:591:e:0::3",
-      "kavlan-6": "2001:660:4406:592:e:0::3",
-      "kavlan-7": "2001:660:4406:593:e:0::3",
-      "kavlan-8": "2001:660:4406:594:e:0::3",
-      "kavlan-9": "2001:660:4406:595:e:0::3"
+      "kavlan-1": "2001:660:4406:580:e::3",
+      "kavlan-11": "2001:660:4406:1a0:50e::3",
+      "kavlan-12": "2001:660:4406:2a0:50e::3",
+      "kavlan-13": "2001:660:4406:4a0:50e::3",
+      "kavlan-14": "2001:660:4406:5a0:50e::3",
+      "kavlan-16": "2001:660:4406:7a0:50e::3",
+      "kavlan-18": "2001:660:4406:8a0:50e::3",
+      "kavlan-2": "2001:660:4406:581:e::3",
+      "kavlan-20": "2001:660:4406:3a0:50e::3",
+      "kavlan-21": "2001:660:4406:6a0:50e::3",
+      "kavlan-3": "2001:660:4406:582:e::3",
+      "kavlan-4": "2001:660:4406:590:e::3",
+      "kavlan-5": "2001:660:4406:591:e::3",
+      "kavlan-6": "2001:660:4406:592:e::3",
+      "kavlan-7": "2001:660:4406:593:e::3",
+      "kavlan-8": "2001:660:4406:594:e::3",
+      "kavlan-9": "2001:660:4406:595:e::3"
     }
   },
   "main_memory": {
@@ -116,7 +116,7 @@
       "firmware_version": "7.10 0x8000519f 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.77.3",
-      "ip6": "2001:660:4406:500:e:0::3",
+      "ip6": "2001:660:4406:500:e::3",
       "kavlan": true,
       "mac": "e4:43:4b:a4:49:fa",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-4.json b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-4.json
index 045e00a14d45bd5d1c4877fb49c73b635118b591..61691582c92c50000b0bc66253f0fe38628dfd2c 100644
--- a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-4.json
+++ b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-4.json
@@ -83,23 +83,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:e:0::4",
-      "kavlan-11": "2001:660:4406:1a0:50e:0::4",
-      "kavlan-12": "2001:660:4406:2a0:50e:0::4",
-      "kavlan-13": "2001:660:4406:4a0:50e:0::4",
-      "kavlan-14": "2001:660:4406:5a0:50e:0::4",
-      "kavlan-16": "2001:660:4406:7a0:50e:0::4",
-      "kavlan-18": "2001:660:4406:8a0:50e:0::4",
-      "kavlan-2": "2001:660:4406:581:e:0::4",
-      "kavlan-20": "2001:660:4406:3a0:50e:0::4",
-      "kavlan-21": "2001:660:4406:6a0:50e:0::4",
-      "kavlan-3": "2001:660:4406:582:e:0::4",
-      "kavlan-4": "2001:660:4406:590:e:0::4",
-      "kavlan-5": "2001:660:4406:591:e:0::4",
-      "kavlan-6": "2001:660:4406:592:e:0::4",
-      "kavlan-7": "2001:660:4406:593:e:0::4",
-      "kavlan-8": "2001:660:4406:594:e:0::4",
-      "kavlan-9": "2001:660:4406:595:e:0::4"
+      "kavlan-1": "2001:660:4406:580:e::4",
+      "kavlan-11": "2001:660:4406:1a0:50e::4",
+      "kavlan-12": "2001:660:4406:2a0:50e::4",
+      "kavlan-13": "2001:660:4406:4a0:50e::4",
+      "kavlan-14": "2001:660:4406:5a0:50e::4",
+      "kavlan-16": "2001:660:4406:7a0:50e::4",
+      "kavlan-18": "2001:660:4406:8a0:50e::4",
+      "kavlan-2": "2001:660:4406:581:e::4",
+      "kavlan-20": "2001:660:4406:3a0:50e::4",
+      "kavlan-21": "2001:660:4406:6a0:50e::4",
+      "kavlan-3": "2001:660:4406:582:e::4",
+      "kavlan-4": "2001:660:4406:590:e::4",
+      "kavlan-5": "2001:660:4406:591:e::4",
+      "kavlan-6": "2001:660:4406:592:e::4",
+      "kavlan-7": "2001:660:4406:593:e::4",
+      "kavlan-8": "2001:660:4406:594:e::4",
+      "kavlan-9": "2001:660:4406:595:e::4"
     }
   },
   "main_memory": {
@@ -116,7 +116,7 @@
       "firmware_version": "7.10 0x8000519f 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.77.4",
-      "ip6": "2001:660:4406:500:e:0::4",
+      "ip6": "2001:660:4406:500:e::4",
       "kavlan": true,
       "mac": "e4:43:4b:a5:4f:b8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-5.json b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-5.json
index 4aea8d40af94f1cdb9a282671af0248f27d8b0f7..aa95f0531cc8844a5193327156d0f7239d02a0db 100644
--- a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-5.json
+++ b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-5.json
@@ -83,23 +83,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:e:0::5",
-      "kavlan-11": "2001:660:4406:1a0:50e:0::5",
-      "kavlan-12": "2001:660:4406:2a0:50e:0::5",
-      "kavlan-13": "2001:660:4406:4a0:50e:0::5",
-      "kavlan-14": "2001:660:4406:5a0:50e:0::5",
-      "kavlan-16": "2001:660:4406:7a0:50e:0::5",
-      "kavlan-18": "2001:660:4406:8a0:50e:0::5",
-      "kavlan-2": "2001:660:4406:581:e:0::5",
-      "kavlan-20": "2001:660:4406:3a0:50e:0::5",
-      "kavlan-21": "2001:660:4406:6a0:50e:0::5",
-      "kavlan-3": "2001:660:4406:582:e:0::5",
-      "kavlan-4": "2001:660:4406:590:e:0::5",
-      "kavlan-5": "2001:660:4406:591:e:0::5",
-      "kavlan-6": "2001:660:4406:592:e:0::5",
-      "kavlan-7": "2001:660:4406:593:e:0::5",
-      "kavlan-8": "2001:660:4406:594:e:0::5",
-      "kavlan-9": "2001:660:4406:595:e:0::5"
+      "kavlan-1": "2001:660:4406:580:e::5",
+      "kavlan-11": "2001:660:4406:1a0:50e::5",
+      "kavlan-12": "2001:660:4406:2a0:50e::5",
+      "kavlan-13": "2001:660:4406:4a0:50e::5",
+      "kavlan-14": "2001:660:4406:5a0:50e::5",
+      "kavlan-16": "2001:660:4406:7a0:50e::5",
+      "kavlan-18": "2001:660:4406:8a0:50e::5",
+      "kavlan-2": "2001:660:4406:581:e::5",
+      "kavlan-20": "2001:660:4406:3a0:50e::5",
+      "kavlan-21": "2001:660:4406:6a0:50e::5",
+      "kavlan-3": "2001:660:4406:582:e::5",
+      "kavlan-4": "2001:660:4406:590:e::5",
+      "kavlan-5": "2001:660:4406:591:e::5",
+      "kavlan-6": "2001:660:4406:592:e::5",
+      "kavlan-7": "2001:660:4406:593:e::5",
+      "kavlan-8": "2001:660:4406:594:e::5",
+      "kavlan-9": "2001:660:4406:595:e::5"
     }
   },
   "main_memory": {
@@ -116,7 +116,7 @@
       "firmware_version": "7.10 0x8000519f 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.77.5",
-      "ip6": "2001:660:4406:500:e:0::5",
+      "ip6": "2001:660:4406:500:e::5",
       "kavlan": true,
       "mac": "e4:43:4b:a4:02:ec",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-1.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-1.json
index 90d099c0b246c78044881901afd959342fc09fe1..14cf99147caf6ee9837805d2f1690d229a530e85 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-1.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::1",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::1",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::1",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::1",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::1",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::1",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::1",
-      "kavlan-2": "2001:660:4406:581:d:0::1",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::1",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::1",
-      "kavlan-3": "2001:660:4406:582:d:0::1",
-      "kavlan-4": "2001:660:4406:590:d:0::1",
-      "kavlan-5": "2001:660:4406:591:d:0::1",
-      "kavlan-6": "2001:660:4406:592:d:0::1",
-      "kavlan-7": "2001:660:4406:593:d:0::1",
-      "kavlan-8": "2001:660:4406:594:d:0::1",
-      "kavlan-9": "2001:660:4406:595:d:0::1"
+      "kavlan-1": "2001:660:4406:580:d::1",
+      "kavlan-11": "2001:660:4406:1a0:50d::1",
+      "kavlan-12": "2001:660:4406:2a0:50d::1",
+      "kavlan-13": "2001:660:4406:4a0:50d::1",
+      "kavlan-14": "2001:660:4406:5a0:50d::1",
+      "kavlan-16": "2001:660:4406:7a0:50d::1",
+      "kavlan-18": "2001:660:4406:8a0:50d::1",
+      "kavlan-2": "2001:660:4406:581:d::1",
+      "kavlan-20": "2001:660:4406:3a0:50d::1",
+      "kavlan-21": "2001:660:4406:6a0:50d::1",
+      "kavlan-3": "2001:660:4406:582:d::1",
+      "kavlan-4": "2001:660:4406:590:d::1",
+      "kavlan-5": "2001:660:4406:591:d::1",
+      "kavlan-6": "2001:660:4406:592:d::1",
+      "kavlan-7": "2001:660:4406:593:d::1",
+      "kavlan-8": "2001:660:4406:594:d::1",
+      "kavlan-9": "2001:660:4406:595:d::1"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.1",
-      "ip6": "2001:660:4406:500:d:0::1",
+      "ip6": "2001:660:4406:500:d::1",
       "kavlan": true,
       "mac": "3c:fd:fe:58:07:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-10.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-10.json
index 752b21f002c542bf9f82f0acec37882b532567c1..c89ffbe744aaeea4042479e019cb1de56261907b 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-10.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::a",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::a",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::a",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::a",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::a",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::a",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::a",
-      "kavlan-2": "2001:660:4406:581:d:0::a",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::a",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::a",
-      "kavlan-3": "2001:660:4406:582:d:0::a",
-      "kavlan-4": "2001:660:4406:590:d:0::a",
-      "kavlan-5": "2001:660:4406:591:d:0::a",
-      "kavlan-6": "2001:660:4406:592:d:0::a",
-      "kavlan-7": "2001:660:4406:593:d:0::a",
-      "kavlan-8": "2001:660:4406:594:d:0::a",
-      "kavlan-9": "2001:660:4406:595:d:0::a"
+      "kavlan-1": "2001:660:4406:580:d::a",
+      "kavlan-11": "2001:660:4406:1a0:50d::a",
+      "kavlan-12": "2001:660:4406:2a0:50d::a",
+      "kavlan-13": "2001:660:4406:4a0:50d::a",
+      "kavlan-14": "2001:660:4406:5a0:50d::a",
+      "kavlan-16": "2001:660:4406:7a0:50d::a",
+      "kavlan-18": "2001:660:4406:8a0:50d::a",
+      "kavlan-2": "2001:660:4406:581:d::a",
+      "kavlan-20": "2001:660:4406:3a0:50d::a",
+      "kavlan-21": "2001:660:4406:6a0:50d::a",
+      "kavlan-3": "2001:660:4406:582:d::a",
+      "kavlan-4": "2001:660:4406:590:d::a",
+      "kavlan-5": "2001:660:4406:591:d::a",
+      "kavlan-6": "2001:660:4406:592:d::a",
+      "kavlan-7": "2001:660:4406:593:d::a",
+      "kavlan-8": "2001:660:4406:594:d::a",
+      "kavlan-9": "2001:660:4406:595:d::a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.10",
-      "ip6": "2001:660:4406:500:d:0::a",
+      "ip6": "2001:660:4406:500:d::a",
       "kavlan": true,
       "mac": "3c:fd:fe:59:1a:30",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-11.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-11.json
index 3fde1204983f0110f649cf6cb169ef7d3f1da2f0..7dc9b2d0a6982eb9ec98e27e7819b386f764df62 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-11.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::b",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::b",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::b",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::b",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::b",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::b",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::b",
-      "kavlan-2": "2001:660:4406:581:d:0::b",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::b",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::b",
-      "kavlan-3": "2001:660:4406:582:d:0::b",
-      "kavlan-4": "2001:660:4406:590:d:0::b",
-      "kavlan-5": "2001:660:4406:591:d:0::b",
-      "kavlan-6": "2001:660:4406:592:d:0::b",
-      "kavlan-7": "2001:660:4406:593:d:0::b",
-      "kavlan-8": "2001:660:4406:594:d:0::b",
-      "kavlan-9": "2001:660:4406:595:d:0::b"
+      "kavlan-1": "2001:660:4406:580:d::b",
+      "kavlan-11": "2001:660:4406:1a0:50d::b",
+      "kavlan-12": "2001:660:4406:2a0:50d::b",
+      "kavlan-13": "2001:660:4406:4a0:50d::b",
+      "kavlan-14": "2001:660:4406:5a0:50d::b",
+      "kavlan-16": "2001:660:4406:7a0:50d::b",
+      "kavlan-18": "2001:660:4406:8a0:50d::b",
+      "kavlan-2": "2001:660:4406:581:d::b",
+      "kavlan-20": "2001:660:4406:3a0:50d::b",
+      "kavlan-21": "2001:660:4406:6a0:50d::b",
+      "kavlan-3": "2001:660:4406:582:d::b",
+      "kavlan-4": "2001:660:4406:590:d::b",
+      "kavlan-5": "2001:660:4406:591:d::b",
+      "kavlan-6": "2001:660:4406:592:d::b",
+      "kavlan-7": "2001:660:4406:593:d::b",
+      "kavlan-8": "2001:660:4406:594:d::b",
+      "kavlan-9": "2001:660:4406:595:d::b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.11",
-      "ip6": "2001:660:4406:500:d:0::b",
+      "ip6": "2001:660:4406:500:d::b",
       "kavlan": true,
       "mac": "3c:fd:fe:59:2d:70",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-12.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-12.json
index 7873261073cc1a59050c404c4af7fa1419716ff8..5cc611ad3b771c9d38c4c46ee89ea3950ac36a39 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-12.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::c",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::c",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::c",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::c",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::c",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::c",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::c",
-      "kavlan-2": "2001:660:4406:581:d:0::c",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::c",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::c",
-      "kavlan-3": "2001:660:4406:582:d:0::c",
-      "kavlan-4": "2001:660:4406:590:d:0::c",
-      "kavlan-5": "2001:660:4406:591:d:0::c",
-      "kavlan-6": "2001:660:4406:592:d:0::c",
-      "kavlan-7": "2001:660:4406:593:d:0::c",
-      "kavlan-8": "2001:660:4406:594:d:0::c",
-      "kavlan-9": "2001:660:4406:595:d:0::c"
+      "kavlan-1": "2001:660:4406:580:d::c",
+      "kavlan-11": "2001:660:4406:1a0:50d::c",
+      "kavlan-12": "2001:660:4406:2a0:50d::c",
+      "kavlan-13": "2001:660:4406:4a0:50d::c",
+      "kavlan-14": "2001:660:4406:5a0:50d::c",
+      "kavlan-16": "2001:660:4406:7a0:50d::c",
+      "kavlan-18": "2001:660:4406:8a0:50d::c",
+      "kavlan-2": "2001:660:4406:581:d::c",
+      "kavlan-20": "2001:660:4406:3a0:50d::c",
+      "kavlan-21": "2001:660:4406:6a0:50d::c",
+      "kavlan-3": "2001:660:4406:582:d::c",
+      "kavlan-4": "2001:660:4406:590:d::c",
+      "kavlan-5": "2001:660:4406:591:d::c",
+      "kavlan-6": "2001:660:4406:592:d::c",
+      "kavlan-7": "2001:660:4406:593:d::c",
+      "kavlan-8": "2001:660:4406:594:d::c",
+      "kavlan-9": "2001:660:4406:595:d::c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.12",
-      "ip6": "2001:660:4406:500:d:0::c",
+      "ip6": "2001:660:4406:500:d::c",
       "kavlan": true,
       "mac": "3c:fd:fe:59:18:90",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-13.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-13.json
index 9591eb47ab743e5bff5272139c3b910ebddbc582..6a2114009d2833c946145c99a6665dc28ffaa710 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-13.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::d",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::d",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::d",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::d",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::d",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::d",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::d",
-      "kavlan-2": "2001:660:4406:581:d:0::d",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::d",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::d",
-      "kavlan-3": "2001:660:4406:582:d:0::d",
-      "kavlan-4": "2001:660:4406:590:d:0::d",
-      "kavlan-5": "2001:660:4406:591:d:0::d",
-      "kavlan-6": "2001:660:4406:592:d:0::d",
-      "kavlan-7": "2001:660:4406:593:d:0::d",
-      "kavlan-8": "2001:660:4406:594:d:0::d",
-      "kavlan-9": "2001:660:4406:595:d:0::d"
+      "kavlan-1": "2001:660:4406:580:d::d",
+      "kavlan-11": "2001:660:4406:1a0:50d::d",
+      "kavlan-12": "2001:660:4406:2a0:50d::d",
+      "kavlan-13": "2001:660:4406:4a0:50d::d",
+      "kavlan-14": "2001:660:4406:5a0:50d::d",
+      "kavlan-16": "2001:660:4406:7a0:50d::d",
+      "kavlan-18": "2001:660:4406:8a0:50d::d",
+      "kavlan-2": "2001:660:4406:581:d::d",
+      "kavlan-20": "2001:660:4406:3a0:50d::d",
+      "kavlan-21": "2001:660:4406:6a0:50d::d",
+      "kavlan-3": "2001:660:4406:582:d::d",
+      "kavlan-4": "2001:660:4406:590:d::d",
+      "kavlan-5": "2001:660:4406:591:d::d",
+      "kavlan-6": "2001:660:4406:592:d::d",
+      "kavlan-7": "2001:660:4406:593:d::d",
+      "kavlan-8": "2001:660:4406:594:d::d",
+      "kavlan-9": "2001:660:4406:595:d::d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.13",
-      "ip6": "2001:660:4406:500:d:0::d",
+      "ip6": "2001:660:4406:500:d::d",
       "kavlan": true,
       "mac": "3c:fd:fe:59:1e:f0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-14.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-14.json
index ada5221ec059787ecbb8a5203e1a285c1f99aa38..e999f6c12713bf78b7a141f4943539f7b29f478d 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-14.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::e",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::e",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::e",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::e",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::e",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::e",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::e",
-      "kavlan-2": "2001:660:4406:581:d:0::e",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::e",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::e",
-      "kavlan-3": "2001:660:4406:582:d:0::e",
-      "kavlan-4": "2001:660:4406:590:d:0::e",
-      "kavlan-5": "2001:660:4406:591:d:0::e",
-      "kavlan-6": "2001:660:4406:592:d:0::e",
-      "kavlan-7": "2001:660:4406:593:d:0::e",
-      "kavlan-8": "2001:660:4406:594:d:0::e",
-      "kavlan-9": "2001:660:4406:595:d:0::e"
+      "kavlan-1": "2001:660:4406:580:d::e",
+      "kavlan-11": "2001:660:4406:1a0:50d::e",
+      "kavlan-12": "2001:660:4406:2a0:50d::e",
+      "kavlan-13": "2001:660:4406:4a0:50d::e",
+      "kavlan-14": "2001:660:4406:5a0:50d::e",
+      "kavlan-16": "2001:660:4406:7a0:50d::e",
+      "kavlan-18": "2001:660:4406:8a0:50d::e",
+      "kavlan-2": "2001:660:4406:581:d::e",
+      "kavlan-20": "2001:660:4406:3a0:50d::e",
+      "kavlan-21": "2001:660:4406:6a0:50d::e",
+      "kavlan-3": "2001:660:4406:582:d::e",
+      "kavlan-4": "2001:660:4406:590:d::e",
+      "kavlan-5": "2001:660:4406:591:d::e",
+      "kavlan-6": "2001:660:4406:592:d::e",
+      "kavlan-7": "2001:660:4406:593:d::e",
+      "kavlan-8": "2001:660:4406:594:d::e",
+      "kavlan-9": "2001:660:4406:595:d::e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.14",
-      "ip6": "2001:660:4406:500:d:0::e",
+      "ip6": "2001:660:4406:500:d::e",
       "kavlan": true,
       "mac": "3c:fd:fe:58:07:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-15.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-15.json
index dbfabaa07e2a9edefa4e3ff58e1cd4275e94fe1e..730d693c4e76831a07221803291f457cd0c9910c 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-15.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::f",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::f",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::f",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::f",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::f",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::f",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::f",
-      "kavlan-2": "2001:660:4406:581:d:0::f",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::f",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::f",
-      "kavlan-3": "2001:660:4406:582:d:0::f",
-      "kavlan-4": "2001:660:4406:590:d:0::f",
-      "kavlan-5": "2001:660:4406:591:d:0::f",
-      "kavlan-6": "2001:660:4406:592:d:0::f",
-      "kavlan-7": "2001:660:4406:593:d:0::f",
-      "kavlan-8": "2001:660:4406:594:d:0::f",
-      "kavlan-9": "2001:660:4406:595:d:0::f"
+      "kavlan-1": "2001:660:4406:580:d::f",
+      "kavlan-11": "2001:660:4406:1a0:50d::f",
+      "kavlan-12": "2001:660:4406:2a0:50d::f",
+      "kavlan-13": "2001:660:4406:4a0:50d::f",
+      "kavlan-14": "2001:660:4406:5a0:50d::f",
+      "kavlan-16": "2001:660:4406:7a0:50d::f",
+      "kavlan-18": "2001:660:4406:8a0:50d::f",
+      "kavlan-2": "2001:660:4406:581:d::f",
+      "kavlan-20": "2001:660:4406:3a0:50d::f",
+      "kavlan-21": "2001:660:4406:6a0:50d::f",
+      "kavlan-3": "2001:660:4406:582:d::f",
+      "kavlan-4": "2001:660:4406:590:d::f",
+      "kavlan-5": "2001:660:4406:591:d::f",
+      "kavlan-6": "2001:660:4406:592:d::f",
+      "kavlan-7": "2001:660:4406:593:d::f",
+      "kavlan-8": "2001:660:4406:594:d::f",
+      "kavlan-9": "2001:660:4406:595:d::f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.15",
-      "ip6": "2001:660:4406:500:d:0::f",
+      "ip6": "2001:660:4406:500:d::f",
       "kavlan": true,
       "mac": "3c:fd:fe:58:13:d8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-16.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-16.json
index a6a579e76cf954fc1b92bd257d3fa54e8c094992..688876fbb1bdb375e83e55ea5535cad50ab92704 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-16.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::10",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::10",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::10",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::10",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::10",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::10",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::10",
-      "kavlan-2": "2001:660:4406:581:d:0::10",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::10",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::10",
-      "kavlan-3": "2001:660:4406:582:d:0::10",
-      "kavlan-4": "2001:660:4406:590:d:0::10",
-      "kavlan-5": "2001:660:4406:591:d:0::10",
-      "kavlan-6": "2001:660:4406:592:d:0::10",
-      "kavlan-7": "2001:660:4406:593:d:0::10",
-      "kavlan-8": "2001:660:4406:594:d:0::10",
-      "kavlan-9": "2001:660:4406:595:d:0::10"
+      "kavlan-1": "2001:660:4406:580:d::10",
+      "kavlan-11": "2001:660:4406:1a0:50d::10",
+      "kavlan-12": "2001:660:4406:2a0:50d::10",
+      "kavlan-13": "2001:660:4406:4a0:50d::10",
+      "kavlan-14": "2001:660:4406:5a0:50d::10",
+      "kavlan-16": "2001:660:4406:7a0:50d::10",
+      "kavlan-18": "2001:660:4406:8a0:50d::10",
+      "kavlan-2": "2001:660:4406:581:d::10",
+      "kavlan-20": "2001:660:4406:3a0:50d::10",
+      "kavlan-21": "2001:660:4406:6a0:50d::10",
+      "kavlan-3": "2001:660:4406:582:d::10",
+      "kavlan-4": "2001:660:4406:590:d::10",
+      "kavlan-5": "2001:660:4406:591:d::10",
+      "kavlan-6": "2001:660:4406:592:d::10",
+      "kavlan-7": "2001:660:4406:593:d::10",
+      "kavlan-8": "2001:660:4406:594:d::10",
+      "kavlan-9": "2001:660:4406:595:d::10"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.16",
-      "ip6": "2001:660:4406:500:d:0::10",
+      "ip6": "2001:660:4406:500:d::10",
       "kavlan": true,
       "mac": "3c:fd:fe:58:14:38",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-17.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-17.json
index e4b9f120397c9cc2e4e152c5411e099ee47855a1..c471ec55269c1b27c9010c513f08a5b7b5bac975 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-17.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-17.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::11",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::11",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::11",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::11",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::11",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::11",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::11",
-      "kavlan-2": "2001:660:4406:581:d:0::11",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::11",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::11",
-      "kavlan-3": "2001:660:4406:582:d:0::11",
-      "kavlan-4": "2001:660:4406:590:d:0::11",
-      "kavlan-5": "2001:660:4406:591:d:0::11",
-      "kavlan-6": "2001:660:4406:592:d:0::11",
-      "kavlan-7": "2001:660:4406:593:d:0::11",
-      "kavlan-8": "2001:660:4406:594:d:0::11",
-      "kavlan-9": "2001:660:4406:595:d:0::11"
+      "kavlan-1": "2001:660:4406:580:d::11",
+      "kavlan-11": "2001:660:4406:1a0:50d::11",
+      "kavlan-12": "2001:660:4406:2a0:50d::11",
+      "kavlan-13": "2001:660:4406:4a0:50d::11",
+      "kavlan-14": "2001:660:4406:5a0:50d::11",
+      "kavlan-16": "2001:660:4406:7a0:50d::11",
+      "kavlan-18": "2001:660:4406:8a0:50d::11",
+      "kavlan-2": "2001:660:4406:581:d::11",
+      "kavlan-20": "2001:660:4406:3a0:50d::11",
+      "kavlan-21": "2001:660:4406:6a0:50d::11",
+      "kavlan-3": "2001:660:4406:582:d::11",
+      "kavlan-4": "2001:660:4406:590:d::11",
+      "kavlan-5": "2001:660:4406:591:d::11",
+      "kavlan-6": "2001:660:4406:592:d::11",
+      "kavlan-7": "2001:660:4406:593:d::11",
+      "kavlan-8": "2001:660:4406:594:d::11",
+      "kavlan-9": "2001:660:4406:595:d::11"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.17",
-      "ip6": "2001:660:4406:500:d:0::11",
+      "ip6": "2001:660:4406:500:d::11",
       "kavlan": true,
       "mac": "3c:fd:fe:56:f1:e0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-18.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-18.json
index 188c5a9a420b79ea08fc3e6dc4ef0b1872ba2ac8..bd1f6b8a337158a36d844ffd1f95bdb5b8c8c749 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-18.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-18.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::12",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::12",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::12",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::12",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::12",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::12",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::12",
-      "kavlan-2": "2001:660:4406:581:d:0::12",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::12",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::12",
-      "kavlan-3": "2001:660:4406:582:d:0::12",
-      "kavlan-4": "2001:660:4406:590:d:0::12",
-      "kavlan-5": "2001:660:4406:591:d:0::12",
-      "kavlan-6": "2001:660:4406:592:d:0::12",
-      "kavlan-7": "2001:660:4406:593:d:0::12",
-      "kavlan-8": "2001:660:4406:594:d:0::12",
-      "kavlan-9": "2001:660:4406:595:d:0::12"
+      "kavlan-1": "2001:660:4406:580:d::12",
+      "kavlan-11": "2001:660:4406:1a0:50d::12",
+      "kavlan-12": "2001:660:4406:2a0:50d::12",
+      "kavlan-13": "2001:660:4406:4a0:50d::12",
+      "kavlan-14": "2001:660:4406:5a0:50d::12",
+      "kavlan-16": "2001:660:4406:7a0:50d::12",
+      "kavlan-18": "2001:660:4406:8a0:50d::12",
+      "kavlan-2": "2001:660:4406:581:d::12",
+      "kavlan-20": "2001:660:4406:3a0:50d::12",
+      "kavlan-21": "2001:660:4406:6a0:50d::12",
+      "kavlan-3": "2001:660:4406:582:d::12",
+      "kavlan-4": "2001:660:4406:590:d::12",
+      "kavlan-5": "2001:660:4406:591:d::12",
+      "kavlan-6": "2001:660:4406:592:d::12",
+      "kavlan-7": "2001:660:4406:593:d::12",
+      "kavlan-8": "2001:660:4406:594:d::12",
+      "kavlan-9": "2001:660:4406:595:d::12"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.18",
-      "ip6": "2001:660:4406:500:d:0::12",
+      "ip6": "2001:660:4406:500:d::12",
       "kavlan": true,
       "mac": "3c:fd:fe:59:18:50",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-19.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-19.json
index d40c0f9bc4f95fc5755272c327c045217832f2f3..dacc7faa5ac068f05737af6ccb366b775e3e2f2c 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-19.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-19.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::13",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::13",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::13",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::13",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::13",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::13",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::13",
-      "kavlan-2": "2001:660:4406:581:d:0::13",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::13",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::13",
-      "kavlan-3": "2001:660:4406:582:d:0::13",
-      "kavlan-4": "2001:660:4406:590:d:0::13",
-      "kavlan-5": "2001:660:4406:591:d:0::13",
-      "kavlan-6": "2001:660:4406:592:d:0::13",
-      "kavlan-7": "2001:660:4406:593:d:0::13",
-      "kavlan-8": "2001:660:4406:594:d:0::13",
-      "kavlan-9": "2001:660:4406:595:d:0::13"
+      "kavlan-1": "2001:660:4406:580:d::13",
+      "kavlan-11": "2001:660:4406:1a0:50d::13",
+      "kavlan-12": "2001:660:4406:2a0:50d::13",
+      "kavlan-13": "2001:660:4406:4a0:50d::13",
+      "kavlan-14": "2001:660:4406:5a0:50d::13",
+      "kavlan-16": "2001:660:4406:7a0:50d::13",
+      "kavlan-18": "2001:660:4406:8a0:50d::13",
+      "kavlan-2": "2001:660:4406:581:d::13",
+      "kavlan-20": "2001:660:4406:3a0:50d::13",
+      "kavlan-21": "2001:660:4406:6a0:50d::13",
+      "kavlan-3": "2001:660:4406:582:d::13",
+      "kavlan-4": "2001:660:4406:590:d::13",
+      "kavlan-5": "2001:660:4406:591:d::13",
+      "kavlan-6": "2001:660:4406:592:d::13",
+      "kavlan-7": "2001:660:4406:593:d::13",
+      "kavlan-8": "2001:660:4406:594:d::13",
+      "kavlan-9": "2001:660:4406:595:d::13"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.19",
-      "ip6": "2001:660:4406:500:d:0::13",
+      "ip6": "2001:660:4406:500:d::13",
       "kavlan": true,
       "mac": "3c:fd:fe:56:f1:80",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-2.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-2.json
index e3d359e6a6e4ccc76eecf4c1c03711166530e63e..c71234fbc70e7b964c4738f0f004d984f8827c6e 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-2.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::2",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::2",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::2",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::2",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::2",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::2",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::2",
-      "kavlan-2": "2001:660:4406:581:d:0::2",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::2",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::2",
-      "kavlan-3": "2001:660:4406:582:d:0::2",
-      "kavlan-4": "2001:660:4406:590:d:0::2",
-      "kavlan-5": "2001:660:4406:591:d:0::2",
-      "kavlan-6": "2001:660:4406:592:d:0::2",
-      "kavlan-7": "2001:660:4406:593:d:0::2",
-      "kavlan-8": "2001:660:4406:594:d:0::2",
-      "kavlan-9": "2001:660:4406:595:d:0::2"
+      "kavlan-1": "2001:660:4406:580:d::2",
+      "kavlan-11": "2001:660:4406:1a0:50d::2",
+      "kavlan-12": "2001:660:4406:2a0:50d::2",
+      "kavlan-13": "2001:660:4406:4a0:50d::2",
+      "kavlan-14": "2001:660:4406:5a0:50d::2",
+      "kavlan-16": "2001:660:4406:7a0:50d::2",
+      "kavlan-18": "2001:660:4406:8a0:50d::2",
+      "kavlan-2": "2001:660:4406:581:d::2",
+      "kavlan-20": "2001:660:4406:3a0:50d::2",
+      "kavlan-21": "2001:660:4406:6a0:50d::2",
+      "kavlan-3": "2001:660:4406:582:d::2",
+      "kavlan-4": "2001:660:4406:590:d::2",
+      "kavlan-5": "2001:660:4406:591:d::2",
+      "kavlan-6": "2001:660:4406:592:d::2",
+      "kavlan-7": "2001:660:4406:593:d::2",
+      "kavlan-8": "2001:660:4406:594:d::2",
+      "kavlan-9": "2001:660:4406:595:d::2"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.2",
-      "ip6": "2001:660:4406:500:d:0::2",
+      "ip6": "2001:660:4406:500:d::2",
       "kavlan": true,
       "mac": "3c:fd:fe:58:19:b8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-20.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-20.json
index f3dbb3bee1470df3c18fb057b2ea24b9b627059c..13bf871b2ec5259449d7873bcb022de8557ff7a4 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-20.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-20.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::14",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::14",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::14",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::14",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::14",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::14",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::14",
-      "kavlan-2": "2001:660:4406:581:d:0::14",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::14",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::14",
-      "kavlan-3": "2001:660:4406:582:d:0::14",
-      "kavlan-4": "2001:660:4406:590:d:0::14",
-      "kavlan-5": "2001:660:4406:591:d:0::14",
-      "kavlan-6": "2001:660:4406:592:d:0::14",
-      "kavlan-7": "2001:660:4406:593:d:0::14",
-      "kavlan-8": "2001:660:4406:594:d:0::14",
-      "kavlan-9": "2001:660:4406:595:d:0::14"
+      "kavlan-1": "2001:660:4406:580:d::14",
+      "kavlan-11": "2001:660:4406:1a0:50d::14",
+      "kavlan-12": "2001:660:4406:2a0:50d::14",
+      "kavlan-13": "2001:660:4406:4a0:50d::14",
+      "kavlan-14": "2001:660:4406:5a0:50d::14",
+      "kavlan-16": "2001:660:4406:7a0:50d::14",
+      "kavlan-18": "2001:660:4406:8a0:50d::14",
+      "kavlan-2": "2001:660:4406:581:d::14",
+      "kavlan-20": "2001:660:4406:3a0:50d::14",
+      "kavlan-21": "2001:660:4406:6a0:50d::14",
+      "kavlan-3": "2001:660:4406:582:d::14",
+      "kavlan-4": "2001:660:4406:590:d::14",
+      "kavlan-5": "2001:660:4406:591:d::14",
+      "kavlan-6": "2001:660:4406:592:d::14",
+      "kavlan-7": "2001:660:4406:593:d::14",
+      "kavlan-8": "2001:660:4406:594:d::14",
+      "kavlan-9": "2001:660:4406:595:d::14"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.20",
-      "ip6": "2001:660:4406:500:d:0::14",
+      "ip6": "2001:660:4406:500:d::14",
       "kavlan": true,
       "mac": "3c:fd:fe:56:f7:00",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-21.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-21.json
index 5ae58bea72c540a6a4fb59b291b30111685a959c..0721b0ad512c4d1bee6d3e9df0acc3b6be55ff0e 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-21.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-21.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::15",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::15",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::15",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::15",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::15",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::15",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::15",
-      "kavlan-2": "2001:660:4406:581:d:0::15",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::15",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::15",
-      "kavlan-3": "2001:660:4406:582:d:0::15",
-      "kavlan-4": "2001:660:4406:590:d:0::15",
-      "kavlan-5": "2001:660:4406:591:d:0::15",
-      "kavlan-6": "2001:660:4406:592:d:0::15",
-      "kavlan-7": "2001:660:4406:593:d:0::15",
-      "kavlan-8": "2001:660:4406:594:d:0::15",
-      "kavlan-9": "2001:660:4406:595:d:0::15"
+      "kavlan-1": "2001:660:4406:580:d::15",
+      "kavlan-11": "2001:660:4406:1a0:50d::15",
+      "kavlan-12": "2001:660:4406:2a0:50d::15",
+      "kavlan-13": "2001:660:4406:4a0:50d::15",
+      "kavlan-14": "2001:660:4406:5a0:50d::15",
+      "kavlan-16": "2001:660:4406:7a0:50d::15",
+      "kavlan-18": "2001:660:4406:8a0:50d::15",
+      "kavlan-2": "2001:660:4406:581:d::15",
+      "kavlan-20": "2001:660:4406:3a0:50d::15",
+      "kavlan-21": "2001:660:4406:6a0:50d::15",
+      "kavlan-3": "2001:660:4406:582:d::15",
+      "kavlan-4": "2001:660:4406:590:d::15",
+      "kavlan-5": "2001:660:4406:591:d::15",
+      "kavlan-6": "2001:660:4406:592:d::15",
+      "kavlan-7": "2001:660:4406:593:d::15",
+      "kavlan-8": "2001:660:4406:594:d::15",
+      "kavlan-9": "2001:660:4406:595:d::15"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.21",
-      "ip6": "2001:660:4406:500:d:0::15",
+      "ip6": "2001:660:4406:500:d::15",
       "kavlan": true,
       "mac": "3c:fd:fe:57:53:38",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-22.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-22.json
index 9ff803a409b64afe691f94227b576126305d96ca..387126ae67e5c55effec2ee55c70b3975951daf6 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-22.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-22.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::16",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::16",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::16",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::16",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::16",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::16",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::16",
-      "kavlan-2": "2001:660:4406:581:d:0::16",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::16",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::16",
-      "kavlan-3": "2001:660:4406:582:d:0::16",
-      "kavlan-4": "2001:660:4406:590:d:0::16",
-      "kavlan-5": "2001:660:4406:591:d:0::16",
-      "kavlan-6": "2001:660:4406:592:d:0::16",
-      "kavlan-7": "2001:660:4406:593:d:0::16",
-      "kavlan-8": "2001:660:4406:594:d:0::16",
-      "kavlan-9": "2001:660:4406:595:d:0::16"
+      "kavlan-1": "2001:660:4406:580:d::16",
+      "kavlan-11": "2001:660:4406:1a0:50d::16",
+      "kavlan-12": "2001:660:4406:2a0:50d::16",
+      "kavlan-13": "2001:660:4406:4a0:50d::16",
+      "kavlan-14": "2001:660:4406:5a0:50d::16",
+      "kavlan-16": "2001:660:4406:7a0:50d::16",
+      "kavlan-18": "2001:660:4406:8a0:50d::16",
+      "kavlan-2": "2001:660:4406:581:d::16",
+      "kavlan-20": "2001:660:4406:3a0:50d::16",
+      "kavlan-21": "2001:660:4406:6a0:50d::16",
+      "kavlan-3": "2001:660:4406:582:d::16",
+      "kavlan-4": "2001:660:4406:590:d::16",
+      "kavlan-5": "2001:660:4406:591:d::16",
+      "kavlan-6": "2001:660:4406:592:d::16",
+      "kavlan-7": "2001:660:4406:593:d::16",
+      "kavlan-8": "2001:660:4406:594:d::16",
+      "kavlan-9": "2001:660:4406:595:d::16"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.22",
-      "ip6": "2001:660:4406:500:d:0::16",
+      "ip6": "2001:660:4406:500:d::16",
       "kavlan": true,
       "mac": "3c:fd:fe:57:a5:d8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-23.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-23.json
index 1d0f41dc9cf245f42c30b272e8aedd0177eb2f24..8f9dcb4796bc9ba821e985b57dd73ef3da47731d 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-23.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-23.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::17",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::17",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::17",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::17",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::17",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::17",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::17",
-      "kavlan-2": "2001:660:4406:581:d:0::17",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::17",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::17",
-      "kavlan-3": "2001:660:4406:582:d:0::17",
-      "kavlan-4": "2001:660:4406:590:d:0::17",
-      "kavlan-5": "2001:660:4406:591:d:0::17",
-      "kavlan-6": "2001:660:4406:592:d:0::17",
-      "kavlan-7": "2001:660:4406:593:d:0::17",
-      "kavlan-8": "2001:660:4406:594:d:0::17",
-      "kavlan-9": "2001:660:4406:595:d:0::17"
+      "kavlan-1": "2001:660:4406:580:d::17",
+      "kavlan-11": "2001:660:4406:1a0:50d::17",
+      "kavlan-12": "2001:660:4406:2a0:50d::17",
+      "kavlan-13": "2001:660:4406:4a0:50d::17",
+      "kavlan-14": "2001:660:4406:5a0:50d::17",
+      "kavlan-16": "2001:660:4406:7a0:50d::17",
+      "kavlan-18": "2001:660:4406:8a0:50d::17",
+      "kavlan-2": "2001:660:4406:581:d::17",
+      "kavlan-20": "2001:660:4406:3a0:50d::17",
+      "kavlan-21": "2001:660:4406:6a0:50d::17",
+      "kavlan-3": "2001:660:4406:582:d::17",
+      "kavlan-4": "2001:660:4406:590:d::17",
+      "kavlan-5": "2001:660:4406:591:d::17",
+      "kavlan-6": "2001:660:4406:592:d::17",
+      "kavlan-7": "2001:660:4406:593:d::17",
+      "kavlan-8": "2001:660:4406:594:d::17",
+      "kavlan-9": "2001:660:4406:595:d::17"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.23",
-      "ip6": "2001:660:4406:500:d:0::17",
+      "ip6": "2001:660:4406:500:d::17",
       "kavlan": true,
       "mac": "3c:fd:fe:57:a0:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-24.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-24.json
index 8e59a973f9336f19c871d1441c89d1466d4c608b..387802e22202097d7eec2c5b1382ace76d381d03 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-24.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-24.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::18",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::18",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::18",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::18",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::18",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::18",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::18",
-      "kavlan-2": "2001:660:4406:581:d:0::18",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::18",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::18",
-      "kavlan-3": "2001:660:4406:582:d:0::18",
-      "kavlan-4": "2001:660:4406:590:d:0::18",
-      "kavlan-5": "2001:660:4406:591:d:0::18",
-      "kavlan-6": "2001:660:4406:592:d:0::18",
-      "kavlan-7": "2001:660:4406:593:d:0::18",
-      "kavlan-8": "2001:660:4406:594:d:0::18",
-      "kavlan-9": "2001:660:4406:595:d:0::18"
+      "kavlan-1": "2001:660:4406:580:d::18",
+      "kavlan-11": "2001:660:4406:1a0:50d::18",
+      "kavlan-12": "2001:660:4406:2a0:50d::18",
+      "kavlan-13": "2001:660:4406:4a0:50d::18",
+      "kavlan-14": "2001:660:4406:5a0:50d::18",
+      "kavlan-16": "2001:660:4406:7a0:50d::18",
+      "kavlan-18": "2001:660:4406:8a0:50d::18",
+      "kavlan-2": "2001:660:4406:581:d::18",
+      "kavlan-20": "2001:660:4406:3a0:50d::18",
+      "kavlan-21": "2001:660:4406:6a0:50d::18",
+      "kavlan-3": "2001:660:4406:582:d::18",
+      "kavlan-4": "2001:660:4406:590:d::18",
+      "kavlan-5": "2001:660:4406:591:d::18",
+      "kavlan-6": "2001:660:4406:592:d::18",
+      "kavlan-7": "2001:660:4406:593:d::18",
+      "kavlan-8": "2001:660:4406:594:d::18",
+      "kavlan-9": "2001:660:4406:595:d::18"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.24",
-      "ip6": "2001:660:4406:500:d:0::18",
+      "ip6": "2001:660:4406:500:d::18",
       "kavlan": true,
       "mac": "3c:fd:fe:57:d0:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-25.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-25.json
index 632731cd7ead4474ffef13efffcc439c43f4f3b1..b555a728e35cd92a02f3b5d6026a6a592d4c3f92 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-25.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-25.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::19",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::19",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::19",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::19",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::19",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::19",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::19",
-      "kavlan-2": "2001:660:4406:581:d:0::19",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::19",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::19",
-      "kavlan-3": "2001:660:4406:582:d:0::19",
-      "kavlan-4": "2001:660:4406:590:d:0::19",
-      "kavlan-5": "2001:660:4406:591:d:0::19",
-      "kavlan-6": "2001:660:4406:592:d:0::19",
-      "kavlan-7": "2001:660:4406:593:d:0::19",
-      "kavlan-8": "2001:660:4406:594:d:0::19",
-      "kavlan-9": "2001:660:4406:595:d:0::19"
+      "kavlan-1": "2001:660:4406:580:d::19",
+      "kavlan-11": "2001:660:4406:1a0:50d::19",
+      "kavlan-12": "2001:660:4406:2a0:50d::19",
+      "kavlan-13": "2001:660:4406:4a0:50d::19",
+      "kavlan-14": "2001:660:4406:5a0:50d::19",
+      "kavlan-16": "2001:660:4406:7a0:50d::19",
+      "kavlan-18": "2001:660:4406:8a0:50d::19",
+      "kavlan-2": "2001:660:4406:581:d::19",
+      "kavlan-20": "2001:660:4406:3a0:50d::19",
+      "kavlan-21": "2001:660:4406:6a0:50d::19",
+      "kavlan-3": "2001:660:4406:582:d::19",
+      "kavlan-4": "2001:660:4406:590:d::19",
+      "kavlan-5": "2001:660:4406:591:d::19",
+      "kavlan-6": "2001:660:4406:592:d::19",
+      "kavlan-7": "2001:660:4406:593:d::19",
+      "kavlan-8": "2001:660:4406:594:d::19",
+      "kavlan-9": "2001:660:4406:595:d::19"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.25",
-      "ip6": "2001:660:4406:500:d:0::19",
+      "ip6": "2001:660:4406:500:d::19",
       "kavlan": true,
       "mac": "3c:fd:fe:59:1a:50",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-26.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-26.json
index 7edcbd80aca147a844345107c7796661dbfe4af3..bc75970172b47ebd9487a15c0527b85bb25e6a94 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-26.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-26.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::1a",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::1a",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::1a",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::1a",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::1a",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::1a",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::1a",
-      "kavlan-2": "2001:660:4406:581:d:0::1a",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::1a",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::1a",
-      "kavlan-3": "2001:660:4406:582:d:0::1a",
-      "kavlan-4": "2001:660:4406:590:d:0::1a",
-      "kavlan-5": "2001:660:4406:591:d:0::1a",
-      "kavlan-6": "2001:660:4406:592:d:0::1a",
-      "kavlan-7": "2001:660:4406:593:d:0::1a",
-      "kavlan-8": "2001:660:4406:594:d:0::1a",
-      "kavlan-9": "2001:660:4406:595:d:0::1a"
+      "kavlan-1": "2001:660:4406:580:d::1a",
+      "kavlan-11": "2001:660:4406:1a0:50d::1a",
+      "kavlan-12": "2001:660:4406:2a0:50d::1a",
+      "kavlan-13": "2001:660:4406:4a0:50d::1a",
+      "kavlan-14": "2001:660:4406:5a0:50d::1a",
+      "kavlan-16": "2001:660:4406:7a0:50d::1a",
+      "kavlan-18": "2001:660:4406:8a0:50d::1a",
+      "kavlan-2": "2001:660:4406:581:d::1a",
+      "kavlan-20": "2001:660:4406:3a0:50d::1a",
+      "kavlan-21": "2001:660:4406:6a0:50d::1a",
+      "kavlan-3": "2001:660:4406:582:d::1a",
+      "kavlan-4": "2001:660:4406:590:d::1a",
+      "kavlan-5": "2001:660:4406:591:d::1a",
+      "kavlan-6": "2001:660:4406:592:d::1a",
+      "kavlan-7": "2001:660:4406:593:d::1a",
+      "kavlan-8": "2001:660:4406:594:d::1a",
+      "kavlan-9": "2001:660:4406:595:d::1a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.26",
-      "ip6": "2001:660:4406:500:d:0::1a",
+      "ip6": "2001:660:4406:500:d::1a",
       "kavlan": true,
       "mac": "3c:fd:fe:59:2c:f0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-27.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-27.json
index 4b338ba2957f70695d99649cd466957f8639bde7..191a4c366e2c7e0a76366cbe6ce57ad6fce033de 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-27.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-27.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::1b",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::1b",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::1b",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::1b",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::1b",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::1b",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::1b",
-      "kavlan-2": "2001:660:4406:581:d:0::1b",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::1b",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::1b",
-      "kavlan-3": "2001:660:4406:582:d:0::1b",
-      "kavlan-4": "2001:660:4406:590:d:0::1b",
-      "kavlan-5": "2001:660:4406:591:d:0::1b",
-      "kavlan-6": "2001:660:4406:592:d:0::1b",
-      "kavlan-7": "2001:660:4406:593:d:0::1b",
-      "kavlan-8": "2001:660:4406:594:d:0::1b",
-      "kavlan-9": "2001:660:4406:595:d:0::1b"
+      "kavlan-1": "2001:660:4406:580:d::1b",
+      "kavlan-11": "2001:660:4406:1a0:50d::1b",
+      "kavlan-12": "2001:660:4406:2a0:50d::1b",
+      "kavlan-13": "2001:660:4406:4a0:50d::1b",
+      "kavlan-14": "2001:660:4406:5a0:50d::1b",
+      "kavlan-16": "2001:660:4406:7a0:50d::1b",
+      "kavlan-18": "2001:660:4406:8a0:50d::1b",
+      "kavlan-2": "2001:660:4406:581:d::1b",
+      "kavlan-20": "2001:660:4406:3a0:50d::1b",
+      "kavlan-21": "2001:660:4406:6a0:50d::1b",
+      "kavlan-3": "2001:660:4406:582:d::1b",
+      "kavlan-4": "2001:660:4406:590:d::1b",
+      "kavlan-5": "2001:660:4406:591:d::1b",
+      "kavlan-6": "2001:660:4406:592:d::1b",
+      "kavlan-7": "2001:660:4406:593:d::1b",
+      "kavlan-8": "2001:660:4406:594:d::1b",
+      "kavlan-9": "2001:660:4406:595:d::1b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.27",
-      "ip6": "2001:660:4406:500:d:0::1b",
+      "ip6": "2001:660:4406:500:d::1b",
       "kavlan": true,
       "mac": "3c:fd:fe:59:1a:70",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-28.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-28.json
index b2c9f0bf27a54d6e0a99c419784770f7206df6d9..950654f21ec8ae3ec21cab0c7f61e94c619f9297 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-28.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-28.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::1c",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::1c",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::1c",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::1c",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::1c",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::1c",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::1c",
-      "kavlan-2": "2001:660:4406:581:d:0::1c",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::1c",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::1c",
-      "kavlan-3": "2001:660:4406:582:d:0::1c",
-      "kavlan-4": "2001:660:4406:590:d:0::1c",
-      "kavlan-5": "2001:660:4406:591:d:0::1c",
-      "kavlan-6": "2001:660:4406:592:d:0::1c",
-      "kavlan-7": "2001:660:4406:593:d:0::1c",
-      "kavlan-8": "2001:660:4406:594:d:0::1c",
-      "kavlan-9": "2001:660:4406:595:d:0::1c"
+      "kavlan-1": "2001:660:4406:580:d::1c",
+      "kavlan-11": "2001:660:4406:1a0:50d::1c",
+      "kavlan-12": "2001:660:4406:2a0:50d::1c",
+      "kavlan-13": "2001:660:4406:4a0:50d::1c",
+      "kavlan-14": "2001:660:4406:5a0:50d::1c",
+      "kavlan-16": "2001:660:4406:7a0:50d::1c",
+      "kavlan-18": "2001:660:4406:8a0:50d::1c",
+      "kavlan-2": "2001:660:4406:581:d::1c",
+      "kavlan-20": "2001:660:4406:3a0:50d::1c",
+      "kavlan-21": "2001:660:4406:6a0:50d::1c",
+      "kavlan-3": "2001:660:4406:582:d::1c",
+      "kavlan-4": "2001:660:4406:590:d::1c",
+      "kavlan-5": "2001:660:4406:591:d::1c",
+      "kavlan-6": "2001:660:4406:592:d::1c",
+      "kavlan-7": "2001:660:4406:593:d::1c",
+      "kavlan-8": "2001:660:4406:594:d::1c",
+      "kavlan-9": "2001:660:4406:595:d::1c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.28",
-      "ip6": "2001:660:4406:500:d:0::1c",
+      "ip6": "2001:660:4406:500:d::1c",
       "kavlan": true,
       "mac": "3c:fd:fe:59:36:b0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-29.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-29.json
index 08d59ff0f9f731237b3f8a3f03e9f0aa886f94fe..bd8c95352aebe24b6ac03a16a3caaada552c0dc3 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-29.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-29.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::1d",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::1d",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::1d",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::1d",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::1d",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::1d",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::1d",
-      "kavlan-2": "2001:660:4406:581:d:0::1d",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::1d",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::1d",
-      "kavlan-3": "2001:660:4406:582:d:0::1d",
-      "kavlan-4": "2001:660:4406:590:d:0::1d",
-      "kavlan-5": "2001:660:4406:591:d:0::1d",
-      "kavlan-6": "2001:660:4406:592:d:0::1d",
-      "kavlan-7": "2001:660:4406:593:d:0::1d",
-      "kavlan-8": "2001:660:4406:594:d:0::1d",
-      "kavlan-9": "2001:660:4406:595:d:0::1d"
+      "kavlan-1": "2001:660:4406:580:d::1d",
+      "kavlan-11": "2001:660:4406:1a0:50d::1d",
+      "kavlan-12": "2001:660:4406:2a0:50d::1d",
+      "kavlan-13": "2001:660:4406:4a0:50d::1d",
+      "kavlan-14": "2001:660:4406:5a0:50d::1d",
+      "kavlan-16": "2001:660:4406:7a0:50d::1d",
+      "kavlan-18": "2001:660:4406:8a0:50d::1d",
+      "kavlan-2": "2001:660:4406:581:d::1d",
+      "kavlan-20": "2001:660:4406:3a0:50d::1d",
+      "kavlan-21": "2001:660:4406:6a0:50d::1d",
+      "kavlan-3": "2001:660:4406:582:d::1d",
+      "kavlan-4": "2001:660:4406:590:d::1d",
+      "kavlan-5": "2001:660:4406:591:d::1d",
+      "kavlan-6": "2001:660:4406:592:d::1d",
+      "kavlan-7": "2001:660:4406:593:d::1d",
+      "kavlan-8": "2001:660:4406:594:d::1d",
+      "kavlan-9": "2001:660:4406:595:d::1d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.29",
-      "ip6": "2001:660:4406:500:d:0::1d",
+      "ip6": "2001:660:4406:500:d::1d",
       "kavlan": true,
       "mac": "3c:fd:fe:58:03:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-3.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-3.json
index 6d6583e5f90d4c9b7ff6f3d29f4c2b6a3a807666..b2484a4b7cd71d5c364ff5e076bff9d1e6f4d32b 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-3.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::3",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::3",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::3",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::3",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::3",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::3",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::3",
-      "kavlan-2": "2001:660:4406:581:d:0::3",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::3",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::3",
-      "kavlan-3": "2001:660:4406:582:d:0::3",
-      "kavlan-4": "2001:660:4406:590:d:0::3",
-      "kavlan-5": "2001:660:4406:591:d:0::3",
-      "kavlan-6": "2001:660:4406:592:d:0::3",
-      "kavlan-7": "2001:660:4406:593:d:0::3",
-      "kavlan-8": "2001:660:4406:594:d:0::3",
-      "kavlan-9": "2001:660:4406:595:d:0::3"
+      "kavlan-1": "2001:660:4406:580:d::3",
+      "kavlan-11": "2001:660:4406:1a0:50d::3",
+      "kavlan-12": "2001:660:4406:2a0:50d::3",
+      "kavlan-13": "2001:660:4406:4a0:50d::3",
+      "kavlan-14": "2001:660:4406:5a0:50d::3",
+      "kavlan-16": "2001:660:4406:7a0:50d::3",
+      "kavlan-18": "2001:660:4406:8a0:50d::3",
+      "kavlan-2": "2001:660:4406:581:d::3",
+      "kavlan-20": "2001:660:4406:3a0:50d::3",
+      "kavlan-21": "2001:660:4406:6a0:50d::3",
+      "kavlan-3": "2001:660:4406:582:d::3",
+      "kavlan-4": "2001:660:4406:590:d::3",
+      "kavlan-5": "2001:660:4406:591:d::3",
+      "kavlan-6": "2001:660:4406:592:d::3",
+      "kavlan-7": "2001:660:4406:593:d::3",
+      "kavlan-8": "2001:660:4406:594:d::3",
+      "kavlan-9": "2001:660:4406:595:d::3"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.3",
-      "ip6": "2001:660:4406:500:d:0::3",
+      "ip6": "2001:660:4406:500:d::3",
       "kavlan": true,
       "mac": "3c:fd:fe:58:12:58",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-30.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-30.json
index 4f1a08987cdb9c12ce78cb32dfaca8d4256d26dd..04d44a514db83a00712e65119eeb5211cb057c06 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-30.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-30.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::1e",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::1e",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::1e",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::1e",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::1e",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::1e",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::1e",
-      "kavlan-2": "2001:660:4406:581:d:0::1e",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::1e",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::1e",
-      "kavlan-3": "2001:660:4406:582:d:0::1e",
-      "kavlan-4": "2001:660:4406:590:d:0::1e",
-      "kavlan-5": "2001:660:4406:591:d:0::1e",
-      "kavlan-6": "2001:660:4406:592:d:0::1e",
-      "kavlan-7": "2001:660:4406:593:d:0::1e",
-      "kavlan-8": "2001:660:4406:594:d:0::1e",
-      "kavlan-9": "2001:660:4406:595:d:0::1e"
+      "kavlan-1": "2001:660:4406:580:d::1e",
+      "kavlan-11": "2001:660:4406:1a0:50d::1e",
+      "kavlan-12": "2001:660:4406:2a0:50d::1e",
+      "kavlan-13": "2001:660:4406:4a0:50d::1e",
+      "kavlan-14": "2001:660:4406:5a0:50d::1e",
+      "kavlan-16": "2001:660:4406:7a0:50d::1e",
+      "kavlan-18": "2001:660:4406:8a0:50d::1e",
+      "kavlan-2": "2001:660:4406:581:d::1e",
+      "kavlan-20": "2001:660:4406:3a0:50d::1e",
+      "kavlan-21": "2001:660:4406:6a0:50d::1e",
+      "kavlan-3": "2001:660:4406:582:d::1e",
+      "kavlan-4": "2001:660:4406:590:d::1e",
+      "kavlan-5": "2001:660:4406:591:d::1e",
+      "kavlan-6": "2001:660:4406:592:d::1e",
+      "kavlan-7": "2001:660:4406:593:d::1e",
+      "kavlan-8": "2001:660:4406:594:d::1e",
+      "kavlan-9": "2001:660:4406:595:d::1e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.30",
-      "ip6": "2001:660:4406:500:d:0::1e",
+      "ip6": "2001:660:4406:500:d::1e",
       "kavlan": true,
       "mac": "3c:fd:fe:59:1f:50",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-31.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-31.json
index e0bfaf693f5ead6c54154cbd57353cafe72f094b..eb6a47046ace310a8b9860d0a98dca3044d63562 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-31.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-31.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::1f",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::1f",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::1f",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::1f",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::1f",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::1f",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::1f",
-      "kavlan-2": "2001:660:4406:581:d:0::1f",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::1f",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::1f",
-      "kavlan-3": "2001:660:4406:582:d:0::1f",
-      "kavlan-4": "2001:660:4406:590:d:0::1f",
-      "kavlan-5": "2001:660:4406:591:d:0::1f",
-      "kavlan-6": "2001:660:4406:592:d:0::1f",
-      "kavlan-7": "2001:660:4406:593:d:0::1f",
-      "kavlan-8": "2001:660:4406:594:d:0::1f",
-      "kavlan-9": "2001:660:4406:595:d:0::1f"
+      "kavlan-1": "2001:660:4406:580:d::1f",
+      "kavlan-11": "2001:660:4406:1a0:50d::1f",
+      "kavlan-12": "2001:660:4406:2a0:50d::1f",
+      "kavlan-13": "2001:660:4406:4a0:50d::1f",
+      "kavlan-14": "2001:660:4406:5a0:50d::1f",
+      "kavlan-16": "2001:660:4406:7a0:50d::1f",
+      "kavlan-18": "2001:660:4406:8a0:50d::1f",
+      "kavlan-2": "2001:660:4406:581:d::1f",
+      "kavlan-20": "2001:660:4406:3a0:50d::1f",
+      "kavlan-21": "2001:660:4406:6a0:50d::1f",
+      "kavlan-3": "2001:660:4406:582:d::1f",
+      "kavlan-4": "2001:660:4406:590:d::1f",
+      "kavlan-5": "2001:660:4406:591:d::1f",
+      "kavlan-6": "2001:660:4406:592:d::1f",
+      "kavlan-7": "2001:660:4406:593:d::1f",
+      "kavlan-8": "2001:660:4406:594:d::1f",
+      "kavlan-9": "2001:660:4406:595:d::1f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.31",
-      "ip6": "2001:660:4406:500:d:0::1f",
+      "ip6": "2001:660:4406:500:d::1f",
       "kavlan": true,
       "mac": "3c:fd:fe:56:e6:80",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-32.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-32.json
index d19ecaebad01e63a39716d4748dc460b362f2b0e..68924dcd3fa0889246a9e7b560a96fe691f2c293 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-32.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-32.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::20",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::20",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::20",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::20",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::20",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::20",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::20",
-      "kavlan-2": "2001:660:4406:581:d:0::20",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::20",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::20",
-      "kavlan-3": "2001:660:4406:582:d:0::20",
-      "kavlan-4": "2001:660:4406:590:d:0::20",
-      "kavlan-5": "2001:660:4406:591:d:0::20",
-      "kavlan-6": "2001:660:4406:592:d:0::20",
-      "kavlan-7": "2001:660:4406:593:d:0::20",
-      "kavlan-8": "2001:660:4406:594:d:0::20",
-      "kavlan-9": "2001:660:4406:595:d:0::20"
+      "kavlan-1": "2001:660:4406:580:d::20",
+      "kavlan-11": "2001:660:4406:1a0:50d::20",
+      "kavlan-12": "2001:660:4406:2a0:50d::20",
+      "kavlan-13": "2001:660:4406:4a0:50d::20",
+      "kavlan-14": "2001:660:4406:5a0:50d::20",
+      "kavlan-16": "2001:660:4406:7a0:50d::20",
+      "kavlan-18": "2001:660:4406:8a0:50d::20",
+      "kavlan-2": "2001:660:4406:581:d::20",
+      "kavlan-20": "2001:660:4406:3a0:50d::20",
+      "kavlan-21": "2001:660:4406:6a0:50d::20",
+      "kavlan-3": "2001:660:4406:582:d::20",
+      "kavlan-4": "2001:660:4406:590:d::20",
+      "kavlan-5": "2001:660:4406:591:d::20",
+      "kavlan-6": "2001:660:4406:592:d::20",
+      "kavlan-7": "2001:660:4406:593:d::20",
+      "kavlan-8": "2001:660:4406:594:d::20",
+      "kavlan-9": "2001:660:4406:595:d::20"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.32",
-      "ip6": "2001:660:4406:500:d:0::20",
+      "ip6": "2001:660:4406:500:d::20",
       "kavlan": true,
       "mac": "3c:fd:fe:58:03:b8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-33.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-33.json
index 713d3bbcc98f6cd6cf56bf989ac20af6498506de..f53b0a6e2319f90589dd1c8826e36b9431717648 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-33.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-33.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::21",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::21",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::21",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::21",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::21",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::21",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::21",
-      "kavlan-2": "2001:660:4406:581:d:0::21",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::21",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::21",
-      "kavlan-3": "2001:660:4406:582:d:0::21",
-      "kavlan-4": "2001:660:4406:590:d:0::21",
-      "kavlan-5": "2001:660:4406:591:d:0::21",
-      "kavlan-6": "2001:660:4406:592:d:0::21",
-      "kavlan-7": "2001:660:4406:593:d:0::21",
-      "kavlan-8": "2001:660:4406:594:d:0::21",
-      "kavlan-9": "2001:660:4406:595:d:0::21"
+      "kavlan-1": "2001:660:4406:580:d::21",
+      "kavlan-11": "2001:660:4406:1a0:50d::21",
+      "kavlan-12": "2001:660:4406:2a0:50d::21",
+      "kavlan-13": "2001:660:4406:4a0:50d::21",
+      "kavlan-14": "2001:660:4406:5a0:50d::21",
+      "kavlan-16": "2001:660:4406:7a0:50d::21",
+      "kavlan-18": "2001:660:4406:8a0:50d::21",
+      "kavlan-2": "2001:660:4406:581:d::21",
+      "kavlan-20": "2001:660:4406:3a0:50d::21",
+      "kavlan-21": "2001:660:4406:6a0:50d::21",
+      "kavlan-3": "2001:660:4406:582:d::21",
+      "kavlan-4": "2001:660:4406:590:d::21",
+      "kavlan-5": "2001:660:4406:591:d::21",
+      "kavlan-6": "2001:660:4406:592:d::21",
+      "kavlan-7": "2001:660:4406:593:d::21",
+      "kavlan-8": "2001:660:4406:594:d::21",
+      "kavlan-9": "2001:660:4406:595:d::21"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.33",
-      "ip6": "2001:660:4406:500:d:0::21",
+      "ip6": "2001:660:4406:500:d::21",
       "kavlan": true,
       "mac": "3c:fd:fe:59:19:90",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-34.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-34.json
index 0d67ce2b2bbb561c6f171124ca5de7db1c9fad8e..16a3dae9ec46b72c8175798496399f177dee8a6e 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-34.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-34.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::22",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::22",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::22",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::22",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::22",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::22",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::22",
-      "kavlan-2": "2001:660:4406:581:d:0::22",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::22",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::22",
-      "kavlan-3": "2001:660:4406:582:d:0::22",
-      "kavlan-4": "2001:660:4406:590:d:0::22",
-      "kavlan-5": "2001:660:4406:591:d:0::22",
-      "kavlan-6": "2001:660:4406:592:d:0::22",
-      "kavlan-7": "2001:660:4406:593:d:0::22",
-      "kavlan-8": "2001:660:4406:594:d:0::22",
-      "kavlan-9": "2001:660:4406:595:d:0::22"
+      "kavlan-1": "2001:660:4406:580:d::22",
+      "kavlan-11": "2001:660:4406:1a0:50d::22",
+      "kavlan-12": "2001:660:4406:2a0:50d::22",
+      "kavlan-13": "2001:660:4406:4a0:50d::22",
+      "kavlan-14": "2001:660:4406:5a0:50d::22",
+      "kavlan-16": "2001:660:4406:7a0:50d::22",
+      "kavlan-18": "2001:660:4406:8a0:50d::22",
+      "kavlan-2": "2001:660:4406:581:d::22",
+      "kavlan-20": "2001:660:4406:3a0:50d::22",
+      "kavlan-21": "2001:660:4406:6a0:50d::22",
+      "kavlan-3": "2001:660:4406:582:d::22",
+      "kavlan-4": "2001:660:4406:590:d::22",
+      "kavlan-5": "2001:660:4406:591:d::22",
+      "kavlan-6": "2001:660:4406:592:d::22",
+      "kavlan-7": "2001:660:4406:593:d::22",
+      "kavlan-8": "2001:660:4406:594:d::22",
+      "kavlan-9": "2001:660:4406:595:d::22"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.34",
-      "ip6": "2001:660:4406:500:d:0::22",
+      "ip6": "2001:660:4406:500:d::22",
       "kavlan": true,
       "mac": "3c:fd:fe:58:1a:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-35.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-35.json
index 6ee1283d3ce0831b18ee07d49dd076d2d7f86772..dcec4f6e22655b9bd0a96ada6ac0622371420724 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-35.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-35.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::23",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::23",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::23",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::23",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::23",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::23",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::23",
-      "kavlan-2": "2001:660:4406:581:d:0::23",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::23",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::23",
-      "kavlan-3": "2001:660:4406:582:d:0::23",
-      "kavlan-4": "2001:660:4406:590:d:0::23",
-      "kavlan-5": "2001:660:4406:591:d:0::23",
-      "kavlan-6": "2001:660:4406:592:d:0::23",
-      "kavlan-7": "2001:660:4406:593:d:0::23",
-      "kavlan-8": "2001:660:4406:594:d:0::23",
-      "kavlan-9": "2001:660:4406:595:d:0::23"
+      "kavlan-1": "2001:660:4406:580:d::23",
+      "kavlan-11": "2001:660:4406:1a0:50d::23",
+      "kavlan-12": "2001:660:4406:2a0:50d::23",
+      "kavlan-13": "2001:660:4406:4a0:50d::23",
+      "kavlan-14": "2001:660:4406:5a0:50d::23",
+      "kavlan-16": "2001:660:4406:7a0:50d::23",
+      "kavlan-18": "2001:660:4406:8a0:50d::23",
+      "kavlan-2": "2001:660:4406:581:d::23",
+      "kavlan-20": "2001:660:4406:3a0:50d::23",
+      "kavlan-21": "2001:660:4406:6a0:50d::23",
+      "kavlan-3": "2001:660:4406:582:d::23",
+      "kavlan-4": "2001:660:4406:590:d::23",
+      "kavlan-5": "2001:660:4406:591:d::23",
+      "kavlan-6": "2001:660:4406:592:d::23",
+      "kavlan-7": "2001:660:4406:593:d::23",
+      "kavlan-8": "2001:660:4406:594:d::23",
+      "kavlan-9": "2001:660:4406:595:d::23"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.35",
-      "ip6": "2001:660:4406:500:d:0::23",
+      "ip6": "2001:660:4406:500:d::23",
       "kavlan": true,
       "mac": "3c:fd:fe:57:ed:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-36.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-36.json
index 36dea0d0ab1ee7cc39c49ce5315864353a82ef26..f5d37069637e47a9524dbe23e1e6e21e9a95a436 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-36.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-36.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::24",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::24",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::24",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::24",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::24",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::24",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::24",
-      "kavlan-2": "2001:660:4406:581:d:0::24",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::24",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::24",
-      "kavlan-3": "2001:660:4406:582:d:0::24",
-      "kavlan-4": "2001:660:4406:590:d:0::24",
-      "kavlan-5": "2001:660:4406:591:d:0::24",
-      "kavlan-6": "2001:660:4406:592:d:0::24",
-      "kavlan-7": "2001:660:4406:593:d:0::24",
-      "kavlan-8": "2001:660:4406:594:d:0::24",
-      "kavlan-9": "2001:660:4406:595:d:0::24"
+      "kavlan-1": "2001:660:4406:580:d::24",
+      "kavlan-11": "2001:660:4406:1a0:50d::24",
+      "kavlan-12": "2001:660:4406:2a0:50d::24",
+      "kavlan-13": "2001:660:4406:4a0:50d::24",
+      "kavlan-14": "2001:660:4406:5a0:50d::24",
+      "kavlan-16": "2001:660:4406:7a0:50d::24",
+      "kavlan-18": "2001:660:4406:8a0:50d::24",
+      "kavlan-2": "2001:660:4406:581:d::24",
+      "kavlan-20": "2001:660:4406:3a0:50d::24",
+      "kavlan-21": "2001:660:4406:6a0:50d::24",
+      "kavlan-3": "2001:660:4406:582:d::24",
+      "kavlan-4": "2001:660:4406:590:d::24",
+      "kavlan-5": "2001:660:4406:591:d::24",
+      "kavlan-6": "2001:660:4406:592:d::24",
+      "kavlan-7": "2001:660:4406:593:d::24",
+      "kavlan-8": "2001:660:4406:594:d::24",
+      "kavlan-9": "2001:660:4406:595:d::24"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.36",
-      "ip6": "2001:660:4406:500:d:0::24",
+      "ip6": "2001:660:4406:500:d::24",
       "kavlan": true,
       "mac": "3c:fd:fe:59:2e:70",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-37.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-37.json
index 467972957c7e9999881194bbeed106f8d78a250c..7d0c671a5b0cc056e613cade10349e32fb127492 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-37.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-37.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::25",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::25",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::25",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::25",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::25",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::25",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::25",
-      "kavlan-2": "2001:660:4406:581:d:0::25",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::25",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::25",
-      "kavlan-3": "2001:660:4406:582:d:0::25",
-      "kavlan-4": "2001:660:4406:590:d:0::25",
-      "kavlan-5": "2001:660:4406:591:d:0::25",
-      "kavlan-6": "2001:660:4406:592:d:0::25",
-      "kavlan-7": "2001:660:4406:593:d:0::25",
-      "kavlan-8": "2001:660:4406:594:d:0::25",
-      "kavlan-9": "2001:660:4406:595:d:0::25"
+      "kavlan-1": "2001:660:4406:580:d::25",
+      "kavlan-11": "2001:660:4406:1a0:50d::25",
+      "kavlan-12": "2001:660:4406:2a0:50d::25",
+      "kavlan-13": "2001:660:4406:4a0:50d::25",
+      "kavlan-14": "2001:660:4406:5a0:50d::25",
+      "kavlan-16": "2001:660:4406:7a0:50d::25",
+      "kavlan-18": "2001:660:4406:8a0:50d::25",
+      "kavlan-2": "2001:660:4406:581:d::25",
+      "kavlan-20": "2001:660:4406:3a0:50d::25",
+      "kavlan-21": "2001:660:4406:6a0:50d::25",
+      "kavlan-3": "2001:660:4406:582:d::25",
+      "kavlan-4": "2001:660:4406:590:d::25",
+      "kavlan-5": "2001:660:4406:591:d::25",
+      "kavlan-6": "2001:660:4406:592:d::25",
+      "kavlan-7": "2001:660:4406:593:d::25",
+      "kavlan-8": "2001:660:4406:594:d::25",
+      "kavlan-9": "2001:660:4406:595:d::25"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.37",
-      "ip6": "2001:660:4406:500:d:0::25",
+      "ip6": "2001:660:4406:500:d::25",
       "kavlan": true,
       "mac": "3c:fd:fe:57:69:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-38.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-38.json
index a05541329bfbf675fcbd59b0b0907d972a15329b..329de951f5ba1437b665462e862ffff7e0c297ed 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-38.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-38.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::26",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::26",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::26",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::26",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::26",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::26",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::26",
-      "kavlan-2": "2001:660:4406:581:d:0::26",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::26",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::26",
-      "kavlan-3": "2001:660:4406:582:d:0::26",
-      "kavlan-4": "2001:660:4406:590:d:0::26",
-      "kavlan-5": "2001:660:4406:591:d:0::26",
-      "kavlan-6": "2001:660:4406:592:d:0::26",
-      "kavlan-7": "2001:660:4406:593:d:0::26",
-      "kavlan-8": "2001:660:4406:594:d:0::26",
-      "kavlan-9": "2001:660:4406:595:d:0::26"
+      "kavlan-1": "2001:660:4406:580:d::26",
+      "kavlan-11": "2001:660:4406:1a0:50d::26",
+      "kavlan-12": "2001:660:4406:2a0:50d::26",
+      "kavlan-13": "2001:660:4406:4a0:50d::26",
+      "kavlan-14": "2001:660:4406:5a0:50d::26",
+      "kavlan-16": "2001:660:4406:7a0:50d::26",
+      "kavlan-18": "2001:660:4406:8a0:50d::26",
+      "kavlan-2": "2001:660:4406:581:d::26",
+      "kavlan-20": "2001:660:4406:3a0:50d::26",
+      "kavlan-21": "2001:660:4406:6a0:50d::26",
+      "kavlan-3": "2001:660:4406:582:d::26",
+      "kavlan-4": "2001:660:4406:590:d::26",
+      "kavlan-5": "2001:660:4406:591:d::26",
+      "kavlan-6": "2001:660:4406:592:d::26",
+      "kavlan-7": "2001:660:4406:593:d::26",
+      "kavlan-8": "2001:660:4406:594:d::26",
+      "kavlan-9": "2001:660:4406:595:d::26"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.38",
-      "ip6": "2001:660:4406:500:d:0::26",
+      "ip6": "2001:660:4406:500:d::26",
       "kavlan": true,
       "mac": "3c:fd:fe:57:78:d8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-39.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-39.json
index ded4d575777ff87a00ad9f350052d418608f1269..a0c67c2935dc3bd8cfc1bc40a72d0be35a7ebe17 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-39.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-39.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::27",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::27",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::27",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::27",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::27",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::27",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::27",
-      "kavlan-2": "2001:660:4406:581:d:0::27",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::27",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::27",
-      "kavlan-3": "2001:660:4406:582:d:0::27",
-      "kavlan-4": "2001:660:4406:590:d:0::27",
-      "kavlan-5": "2001:660:4406:591:d:0::27",
-      "kavlan-6": "2001:660:4406:592:d:0::27",
-      "kavlan-7": "2001:660:4406:593:d:0::27",
-      "kavlan-8": "2001:660:4406:594:d:0::27",
-      "kavlan-9": "2001:660:4406:595:d:0::27"
+      "kavlan-1": "2001:660:4406:580:d::27",
+      "kavlan-11": "2001:660:4406:1a0:50d::27",
+      "kavlan-12": "2001:660:4406:2a0:50d::27",
+      "kavlan-13": "2001:660:4406:4a0:50d::27",
+      "kavlan-14": "2001:660:4406:5a0:50d::27",
+      "kavlan-16": "2001:660:4406:7a0:50d::27",
+      "kavlan-18": "2001:660:4406:8a0:50d::27",
+      "kavlan-2": "2001:660:4406:581:d::27",
+      "kavlan-20": "2001:660:4406:3a0:50d::27",
+      "kavlan-21": "2001:660:4406:6a0:50d::27",
+      "kavlan-3": "2001:660:4406:582:d::27",
+      "kavlan-4": "2001:660:4406:590:d::27",
+      "kavlan-5": "2001:660:4406:591:d::27",
+      "kavlan-6": "2001:660:4406:592:d::27",
+      "kavlan-7": "2001:660:4406:593:d::27",
+      "kavlan-8": "2001:660:4406:594:d::27",
+      "kavlan-9": "2001:660:4406:595:d::27"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.39",
-      "ip6": "2001:660:4406:500:d:0::27",
+      "ip6": "2001:660:4406:500:d::27",
       "kavlan": true,
       "mac": "3c:fd:fe:57:6c:18",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-4.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-4.json
index 9c12c217ab5c0e95b2a931627213da075a5be48e..9a4bf9955532edf72f4b67096099e5efdae7641c 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-4.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::4",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::4",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::4",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::4",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::4",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::4",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::4",
-      "kavlan-2": "2001:660:4406:581:d:0::4",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::4",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::4",
-      "kavlan-3": "2001:660:4406:582:d:0::4",
-      "kavlan-4": "2001:660:4406:590:d:0::4",
-      "kavlan-5": "2001:660:4406:591:d:0::4",
-      "kavlan-6": "2001:660:4406:592:d:0::4",
-      "kavlan-7": "2001:660:4406:593:d:0::4",
-      "kavlan-8": "2001:660:4406:594:d:0::4",
-      "kavlan-9": "2001:660:4406:595:d:0::4"
+      "kavlan-1": "2001:660:4406:580:d::4",
+      "kavlan-11": "2001:660:4406:1a0:50d::4",
+      "kavlan-12": "2001:660:4406:2a0:50d::4",
+      "kavlan-13": "2001:660:4406:4a0:50d::4",
+      "kavlan-14": "2001:660:4406:5a0:50d::4",
+      "kavlan-16": "2001:660:4406:7a0:50d::4",
+      "kavlan-18": "2001:660:4406:8a0:50d::4",
+      "kavlan-2": "2001:660:4406:581:d::4",
+      "kavlan-20": "2001:660:4406:3a0:50d::4",
+      "kavlan-21": "2001:660:4406:6a0:50d::4",
+      "kavlan-3": "2001:660:4406:582:d::4",
+      "kavlan-4": "2001:660:4406:590:d::4",
+      "kavlan-5": "2001:660:4406:591:d::4",
+      "kavlan-6": "2001:660:4406:592:d::4",
+      "kavlan-7": "2001:660:4406:593:d::4",
+      "kavlan-8": "2001:660:4406:594:d::4",
+      "kavlan-9": "2001:660:4406:595:d::4"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.4",
-      "ip6": "2001:660:4406:500:d:0::4",
+      "ip6": "2001:660:4406:500:d::4",
       "kavlan": true,
       "mac": "3c:fd:fe:58:1a:38",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-40.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-40.json
index 04ad0384d10b5cdfddc6cf3dbe35811f087d9112..6fb20f2c318216f58023ed4fc26cc483c0a712d5 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-40.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-40.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::28",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::28",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::28",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::28",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::28",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::28",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::28",
-      "kavlan-2": "2001:660:4406:581:d:0::28",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::28",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::28",
-      "kavlan-3": "2001:660:4406:582:d:0::28",
-      "kavlan-4": "2001:660:4406:590:d:0::28",
-      "kavlan-5": "2001:660:4406:591:d:0::28",
-      "kavlan-6": "2001:660:4406:592:d:0::28",
-      "kavlan-7": "2001:660:4406:593:d:0::28",
-      "kavlan-8": "2001:660:4406:594:d:0::28",
-      "kavlan-9": "2001:660:4406:595:d:0::28"
+      "kavlan-1": "2001:660:4406:580:d::28",
+      "kavlan-11": "2001:660:4406:1a0:50d::28",
+      "kavlan-12": "2001:660:4406:2a0:50d::28",
+      "kavlan-13": "2001:660:4406:4a0:50d::28",
+      "kavlan-14": "2001:660:4406:5a0:50d::28",
+      "kavlan-16": "2001:660:4406:7a0:50d::28",
+      "kavlan-18": "2001:660:4406:8a0:50d::28",
+      "kavlan-2": "2001:660:4406:581:d::28",
+      "kavlan-20": "2001:660:4406:3a0:50d::28",
+      "kavlan-21": "2001:660:4406:6a0:50d::28",
+      "kavlan-3": "2001:660:4406:582:d::28",
+      "kavlan-4": "2001:660:4406:590:d::28",
+      "kavlan-5": "2001:660:4406:591:d::28",
+      "kavlan-6": "2001:660:4406:592:d::28",
+      "kavlan-7": "2001:660:4406:593:d::28",
+      "kavlan-8": "2001:660:4406:594:d::28",
+      "kavlan-9": "2001:660:4406:595:d::28"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.40",
-      "ip6": "2001:660:4406:500:d:0::28",
+      "ip6": "2001:660:4406:500:d::28",
       "kavlan": true,
       "mac": "3c:fd:fe:57:64:18",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-41.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-41.json
index 5154d7b2141fdf1810b222cfd442b8a589c18407..86ab0427fc1f606a5294ff1ca8c96feb5862643f 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-41.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-41.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::29",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::29",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::29",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::29",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::29",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::29",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::29",
-      "kavlan-2": "2001:660:4406:581:d:0::29",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::29",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::29",
-      "kavlan-3": "2001:660:4406:582:d:0::29",
-      "kavlan-4": "2001:660:4406:590:d:0::29",
-      "kavlan-5": "2001:660:4406:591:d:0::29",
-      "kavlan-6": "2001:660:4406:592:d:0::29",
-      "kavlan-7": "2001:660:4406:593:d:0::29",
-      "kavlan-8": "2001:660:4406:594:d:0::29",
-      "kavlan-9": "2001:660:4406:595:d:0::29"
+      "kavlan-1": "2001:660:4406:580:d::29",
+      "kavlan-11": "2001:660:4406:1a0:50d::29",
+      "kavlan-12": "2001:660:4406:2a0:50d::29",
+      "kavlan-13": "2001:660:4406:4a0:50d::29",
+      "kavlan-14": "2001:660:4406:5a0:50d::29",
+      "kavlan-16": "2001:660:4406:7a0:50d::29",
+      "kavlan-18": "2001:660:4406:8a0:50d::29",
+      "kavlan-2": "2001:660:4406:581:d::29",
+      "kavlan-20": "2001:660:4406:3a0:50d::29",
+      "kavlan-21": "2001:660:4406:6a0:50d::29",
+      "kavlan-3": "2001:660:4406:582:d::29",
+      "kavlan-4": "2001:660:4406:590:d::29",
+      "kavlan-5": "2001:660:4406:591:d::29",
+      "kavlan-6": "2001:660:4406:592:d::29",
+      "kavlan-7": "2001:660:4406:593:d::29",
+      "kavlan-8": "2001:660:4406:594:d::29",
+      "kavlan-9": "2001:660:4406:595:d::29"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.41",
-      "ip6": "2001:660:4406:500:d:0::29",
+      "ip6": "2001:660:4406:500:d::29",
       "kavlan": true,
       "mac": "3c:fd:fe:57:53:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-42.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-42.json
index 311a02a6f8e64c92b279e442c3eb4c4b1d5d7290..56e027669f15dbde72c7797dcaf21b3b2dba0c27 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-42.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-42.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::2a",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::2a",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::2a",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::2a",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::2a",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::2a",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::2a",
-      "kavlan-2": "2001:660:4406:581:d:0::2a",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::2a",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::2a",
-      "kavlan-3": "2001:660:4406:582:d:0::2a",
-      "kavlan-4": "2001:660:4406:590:d:0::2a",
-      "kavlan-5": "2001:660:4406:591:d:0::2a",
-      "kavlan-6": "2001:660:4406:592:d:0::2a",
-      "kavlan-7": "2001:660:4406:593:d:0::2a",
-      "kavlan-8": "2001:660:4406:594:d:0::2a",
-      "kavlan-9": "2001:660:4406:595:d:0::2a"
+      "kavlan-1": "2001:660:4406:580:d::2a",
+      "kavlan-11": "2001:660:4406:1a0:50d::2a",
+      "kavlan-12": "2001:660:4406:2a0:50d::2a",
+      "kavlan-13": "2001:660:4406:4a0:50d::2a",
+      "kavlan-14": "2001:660:4406:5a0:50d::2a",
+      "kavlan-16": "2001:660:4406:7a0:50d::2a",
+      "kavlan-18": "2001:660:4406:8a0:50d::2a",
+      "kavlan-2": "2001:660:4406:581:d::2a",
+      "kavlan-20": "2001:660:4406:3a0:50d::2a",
+      "kavlan-21": "2001:660:4406:6a0:50d::2a",
+      "kavlan-3": "2001:660:4406:582:d::2a",
+      "kavlan-4": "2001:660:4406:590:d::2a",
+      "kavlan-5": "2001:660:4406:591:d::2a",
+      "kavlan-6": "2001:660:4406:592:d::2a",
+      "kavlan-7": "2001:660:4406:593:d::2a",
+      "kavlan-8": "2001:660:4406:594:d::2a",
+      "kavlan-9": "2001:660:4406:595:d::2a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.42",
-      "ip6": "2001:660:4406:500:d:0::2a",
+      "ip6": "2001:660:4406:500:d::2a",
       "kavlan": true,
       "mac": "3c:fd:fe:57:6b:d8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-43.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-43.json
index 59cd8ce05061c4e8bfef7ae7dfa8e967785fb319..ab8e2a0591242633672819a70a3f19fce31a6b97 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-43.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-43.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::2b",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::2b",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::2b",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::2b",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::2b",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::2b",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::2b",
-      "kavlan-2": "2001:660:4406:581:d:0::2b",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::2b",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::2b",
-      "kavlan-3": "2001:660:4406:582:d:0::2b",
-      "kavlan-4": "2001:660:4406:590:d:0::2b",
-      "kavlan-5": "2001:660:4406:591:d:0::2b",
-      "kavlan-6": "2001:660:4406:592:d:0::2b",
-      "kavlan-7": "2001:660:4406:593:d:0::2b",
-      "kavlan-8": "2001:660:4406:594:d:0::2b",
-      "kavlan-9": "2001:660:4406:595:d:0::2b"
+      "kavlan-1": "2001:660:4406:580:d::2b",
+      "kavlan-11": "2001:660:4406:1a0:50d::2b",
+      "kavlan-12": "2001:660:4406:2a0:50d::2b",
+      "kavlan-13": "2001:660:4406:4a0:50d::2b",
+      "kavlan-14": "2001:660:4406:5a0:50d::2b",
+      "kavlan-16": "2001:660:4406:7a0:50d::2b",
+      "kavlan-18": "2001:660:4406:8a0:50d::2b",
+      "kavlan-2": "2001:660:4406:581:d::2b",
+      "kavlan-20": "2001:660:4406:3a0:50d::2b",
+      "kavlan-21": "2001:660:4406:6a0:50d::2b",
+      "kavlan-3": "2001:660:4406:582:d::2b",
+      "kavlan-4": "2001:660:4406:590:d::2b",
+      "kavlan-5": "2001:660:4406:591:d::2b",
+      "kavlan-6": "2001:660:4406:592:d::2b",
+      "kavlan-7": "2001:660:4406:593:d::2b",
+      "kavlan-8": "2001:660:4406:594:d::2b",
+      "kavlan-9": "2001:660:4406:595:d::2b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.43",
-      "ip6": "2001:660:4406:500:d:0::2b",
+      "ip6": "2001:660:4406:500:d::2b",
       "kavlan": true,
       "mac": "3c:fd:fe:57:d4:58",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-44.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-44.json
index 46bbec50f3993d39a09f457ff0b5bd5c18d124d6..df848d623c318719fd518158e40243d52c667bc7 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-44.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-44.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::2c",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::2c",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::2c",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::2c",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::2c",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::2c",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::2c",
-      "kavlan-2": "2001:660:4406:581:d:0::2c",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::2c",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::2c",
-      "kavlan-3": "2001:660:4406:582:d:0::2c",
-      "kavlan-4": "2001:660:4406:590:d:0::2c",
-      "kavlan-5": "2001:660:4406:591:d:0::2c",
-      "kavlan-6": "2001:660:4406:592:d:0::2c",
-      "kavlan-7": "2001:660:4406:593:d:0::2c",
-      "kavlan-8": "2001:660:4406:594:d:0::2c",
-      "kavlan-9": "2001:660:4406:595:d:0::2c"
+      "kavlan-1": "2001:660:4406:580:d::2c",
+      "kavlan-11": "2001:660:4406:1a0:50d::2c",
+      "kavlan-12": "2001:660:4406:2a0:50d::2c",
+      "kavlan-13": "2001:660:4406:4a0:50d::2c",
+      "kavlan-14": "2001:660:4406:5a0:50d::2c",
+      "kavlan-16": "2001:660:4406:7a0:50d::2c",
+      "kavlan-18": "2001:660:4406:8a0:50d::2c",
+      "kavlan-2": "2001:660:4406:581:d::2c",
+      "kavlan-20": "2001:660:4406:3a0:50d::2c",
+      "kavlan-21": "2001:660:4406:6a0:50d::2c",
+      "kavlan-3": "2001:660:4406:582:d::2c",
+      "kavlan-4": "2001:660:4406:590:d::2c",
+      "kavlan-5": "2001:660:4406:591:d::2c",
+      "kavlan-6": "2001:660:4406:592:d::2c",
+      "kavlan-7": "2001:660:4406:593:d::2c",
+      "kavlan-8": "2001:660:4406:594:d::2c",
+      "kavlan-9": "2001:660:4406:595:d::2c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.44",
-      "ip6": "2001:660:4406:500:d:0::2c",
+      "ip6": "2001:660:4406:500:d::2c",
       "kavlan": true,
       "mac": "3c:fd:fe:57:69:38",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-45.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-45.json
index 451024a4b02c1a36b4c1ec3339421fe2485796d6..015e31e41c7bd698ef5f4760378843cdd0d8ba7f 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-45.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-45.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::2d",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::2d",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::2d",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::2d",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::2d",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::2d",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::2d",
-      "kavlan-2": "2001:660:4406:581:d:0::2d",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::2d",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::2d",
-      "kavlan-3": "2001:660:4406:582:d:0::2d",
-      "kavlan-4": "2001:660:4406:590:d:0::2d",
-      "kavlan-5": "2001:660:4406:591:d:0::2d",
-      "kavlan-6": "2001:660:4406:592:d:0::2d",
-      "kavlan-7": "2001:660:4406:593:d:0::2d",
-      "kavlan-8": "2001:660:4406:594:d:0::2d",
-      "kavlan-9": "2001:660:4406:595:d:0::2d"
+      "kavlan-1": "2001:660:4406:580:d::2d",
+      "kavlan-11": "2001:660:4406:1a0:50d::2d",
+      "kavlan-12": "2001:660:4406:2a0:50d::2d",
+      "kavlan-13": "2001:660:4406:4a0:50d::2d",
+      "kavlan-14": "2001:660:4406:5a0:50d::2d",
+      "kavlan-16": "2001:660:4406:7a0:50d::2d",
+      "kavlan-18": "2001:660:4406:8a0:50d::2d",
+      "kavlan-2": "2001:660:4406:581:d::2d",
+      "kavlan-20": "2001:660:4406:3a0:50d::2d",
+      "kavlan-21": "2001:660:4406:6a0:50d::2d",
+      "kavlan-3": "2001:660:4406:582:d::2d",
+      "kavlan-4": "2001:660:4406:590:d::2d",
+      "kavlan-5": "2001:660:4406:591:d::2d",
+      "kavlan-6": "2001:660:4406:592:d::2d",
+      "kavlan-7": "2001:660:4406:593:d::2d",
+      "kavlan-8": "2001:660:4406:594:d::2d",
+      "kavlan-9": "2001:660:4406:595:d::2d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.45",
-      "ip6": "2001:660:4406:500:d:0::2d",
+      "ip6": "2001:660:4406:500:d::2d",
       "kavlan": true,
       "mac": "3c:fd:fe:58:14:18",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-46.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-46.json
index 0aa9832e60d38117b4d2acf4fad08f2a2e93f60d..d6aa02548fc79285f2925f53546ce99f25201d6c 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-46.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-46.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::2e",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::2e",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::2e",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::2e",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::2e",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::2e",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::2e",
-      "kavlan-2": "2001:660:4406:581:d:0::2e",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::2e",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::2e",
-      "kavlan-3": "2001:660:4406:582:d:0::2e",
-      "kavlan-4": "2001:660:4406:590:d:0::2e",
-      "kavlan-5": "2001:660:4406:591:d:0::2e",
-      "kavlan-6": "2001:660:4406:592:d:0::2e",
-      "kavlan-7": "2001:660:4406:593:d:0::2e",
-      "kavlan-8": "2001:660:4406:594:d:0::2e",
-      "kavlan-9": "2001:660:4406:595:d:0::2e"
+      "kavlan-1": "2001:660:4406:580:d::2e",
+      "kavlan-11": "2001:660:4406:1a0:50d::2e",
+      "kavlan-12": "2001:660:4406:2a0:50d::2e",
+      "kavlan-13": "2001:660:4406:4a0:50d::2e",
+      "kavlan-14": "2001:660:4406:5a0:50d::2e",
+      "kavlan-16": "2001:660:4406:7a0:50d::2e",
+      "kavlan-18": "2001:660:4406:8a0:50d::2e",
+      "kavlan-2": "2001:660:4406:581:d::2e",
+      "kavlan-20": "2001:660:4406:3a0:50d::2e",
+      "kavlan-21": "2001:660:4406:6a0:50d::2e",
+      "kavlan-3": "2001:660:4406:582:d::2e",
+      "kavlan-4": "2001:660:4406:590:d::2e",
+      "kavlan-5": "2001:660:4406:591:d::2e",
+      "kavlan-6": "2001:660:4406:592:d::2e",
+      "kavlan-7": "2001:660:4406:593:d::2e",
+      "kavlan-8": "2001:660:4406:594:d::2e",
+      "kavlan-9": "2001:660:4406:595:d::2e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.46",
-      "ip6": "2001:660:4406:500:d:0::2e",
+      "ip6": "2001:660:4406:500:d::2e",
       "kavlan": true,
       "mac": "3c:fd:fe:58:06:38",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-47.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-47.json
index 02664a91e94824027105a8f507d2390c640ff915..def91f91b3b25ca5fe1bd4d2ae90e1cbb1c42521 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-47.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-47.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::2f",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::2f",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::2f",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::2f",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::2f",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::2f",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::2f",
-      "kavlan-2": "2001:660:4406:581:d:0::2f",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::2f",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::2f",
-      "kavlan-3": "2001:660:4406:582:d:0::2f",
-      "kavlan-4": "2001:660:4406:590:d:0::2f",
-      "kavlan-5": "2001:660:4406:591:d:0::2f",
-      "kavlan-6": "2001:660:4406:592:d:0::2f",
-      "kavlan-7": "2001:660:4406:593:d:0::2f",
-      "kavlan-8": "2001:660:4406:594:d:0::2f",
-      "kavlan-9": "2001:660:4406:595:d:0::2f"
+      "kavlan-1": "2001:660:4406:580:d::2f",
+      "kavlan-11": "2001:660:4406:1a0:50d::2f",
+      "kavlan-12": "2001:660:4406:2a0:50d::2f",
+      "kavlan-13": "2001:660:4406:4a0:50d::2f",
+      "kavlan-14": "2001:660:4406:5a0:50d::2f",
+      "kavlan-16": "2001:660:4406:7a0:50d::2f",
+      "kavlan-18": "2001:660:4406:8a0:50d::2f",
+      "kavlan-2": "2001:660:4406:581:d::2f",
+      "kavlan-20": "2001:660:4406:3a0:50d::2f",
+      "kavlan-21": "2001:660:4406:6a0:50d::2f",
+      "kavlan-3": "2001:660:4406:582:d::2f",
+      "kavlan-4": "2001:660:4406:590:d::2f",
+      "kavlan-5": "2001:660:4406:591:d::2f",
+      "kavlan-6": "2001:660:4406:592:d::2f",
+      "kavlan-7": "2001:660:4406:593:d::2f",
+      "kavlan-8": "2001:660:4406:594:d::2f",
+      "kavlan-9": "2001:660:4406:595:d::2f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.47",
-      "ip6": "2001:660:4406:500:d:0::2f",
+      "ip6": "2001:660:4406:500:d::2f",
       "kavlan": true,
       "mac": "3c:fd:fe:59:1a:10",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-48.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-48.json
index dd60e6e3700f308f94082a0ef39af9a7f0016e69..006566320b932bf163fe02a845ba697f90af3177 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-48.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-48.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::30",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::30",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::30",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::30",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::30",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::30",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::30",
-      "kavlan-2": "2001:660:4406:581:d:0::30",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::30",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::30",
-      "kavlan-3": "2001:660:4406:582:d:0::30",
-      "kavlan-4": "2001:660:4406:590:d:0::30",
-      "kavlan-5": "2001:660:4406:591:d:0::30",
-      "kavlan-6": "2001:660:4406:592:d:0::30",
-      "kavlan-7": "2001:660:4406:593:d:0::30",
-      "kavlan-8": "2001:660:4406:594:d:0::30",
-      "kavlan-9": "2001:660:4406:595:d:0::30"
+      "kavlan-1": "2001:660:4406:580:d::30",
+      "kavlan-11": "2001:660:4406:1a0:50d::30",
+      "kavlan-12": "2001:660:4406:2a0:50d::30",
+      "kavlan-13": "2001:660:4406:4a0:50d::30",
+      "kavlan-14": "2001:660:4406:5a0:50d::30",
+      "kavlan-16": "2001:660:4406:7a0:50d::30",
+      "kavlan-18": "2001:660:4406:8a0:50d::30",
+      "kavlan-2": "2001:660:4406:581:d::30",
+      "kavlan-20": "2001:660:4406:3a0:50d::30",
+      "kavlan-21": "2001:660:4406:6a0:50d::30",
+      "kavlan-3": "2001:660:4406:582:d::30",
+      "kavlan-4": "2001:660:4406:590:d::30",
+      "kavlan-5": "2001:660:4406:591:d::30",
+      "kavlan-6": "2001:660:4406:592:d::30",
+      "kavlan-7": "2001:660:4406:593:d::30",
+      "kavlan-8": "2001:660:4406:594:d::30",
+      "kavlan-9": "2001:660:4406:595:d::30"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.48",
-      "ip6": "2001:660:4406:500:d:0::30",
+      "ip6": "2001:660:4406:500:d::30",
       "kavlan": true,
       "mac": "3c:fd:fe:59:38:d0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-49.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-49.json
index a347e82e088264130b243ea71118702456879529..3f019cea70439111bdf5482a0472aad4d0ba6855 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-49.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-49.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::31",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::31",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::31",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::31",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::31",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::31",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::31",
-      "kavlan-2": "2001:660:4406:581:d:0::31",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::31",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::31",
-      "kavlan-3": "2001:660:4406:582:d:0::31",
-      "kavlan-4": "2001:660:4406:590:d:0::31",
-      "kavlan-5": "2001:660:4406:591:d:0::31",
-      "kavlan-6": "2001:660:4406:592:d:0::31",
-      "kavlan-7": "2001:660:4406:593:d:0::31",
-      "kavlan-8": "2001:660:4406:594:d:0::31",
-      "kavlan-9": "2001:660:4406:595:d:0::31"
+      "kavlan-1": "2001:660:4406:580:d::31",
+      "kavlan-11": "2001:660:4406:1a0:50d::31",
+      "kavlan-12": "2001:660:4406:2a0:50d::31",
+      "kavlan-13": "2001:660:4406:4a0:50d::31",
+      "kavlan-14": "2001:660:4406:5a0:50d::31",
+      "kavlan-16": "2001:660:4406:7a0:50d::31",
+      "kavlan-18": "2001:660:4406:8a0:50d::31",
+      "kavlan-2": "2001:660:4406:581:d::31",
+      "kavlan-20": "2001:660:4406:3a0:50d::31",
+      "kavlan-21": "2001:660:4406:6a0:50d::31",
+      "kavlan-3": "2001:660:4406:582:d::31",
+      "kavlan-4": "2001:660:4406:590:d::31",
+      "kavlan-5": "2001:660:4406:591:d::31",
+      "kavlan-6": "2001:660:4406:592:d::31",
+      "kavlan-7": "2001:660:4406:593:d::31",
+      "kavlan-8": "2001:660:4406:594:d::31",
+      "kavlan-9": "2001:660:4406:595:d::31"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.49",
-      "ip6": "2001:660:4406:500:d:0::31",
+      "ip6": "2001:660:4406:500:d::31",
       "kavlan": true,
       "mac": "3c:fd:fe:57:b0:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-5.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-5.json
index 407cbe456b6f927cda01a0d6389108b269552aae..2cba6bfc927f8abb41638bcfceb29a8015d276d8 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-5.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::5",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::5",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::5",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::5",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::5",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::5",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::5",
-      "kavlan-2": "2001:660:4406:581:d:0::5",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::5",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::5",
-      "kavlan-3": "2001:660:4406:582:d:0::5",
-      "kavlan-4": "2001:660:4406:590:d:0::5",
-      "kavlan-5": "2001:660:4406:591:d:0::5",
-      "kavlan-6": "2001:660:4406:592:d:0::5",
-      "kavlan-7": "2001:660:4406:593:d:0::5",
-      "kavlan-8": "2001:660:4406:594:d:0::5",
-      "kavlan-9": "2001:660:4406:595:d:0::5"
+      "kavlan-1": "2001:660:4406:580:d::5",
+      "kavlan-11": "2001:660:4406:1a0:50d::5",
+      "kavlan-12": "2001:660:4406:2a0:50d::5",
+      "kavlan-13": "2001:660:4406:4a0:50d::5",
+      "kavlan-14": "2001:660:4406:5a0:50d::5",
+      "kavlan-16": "2001:660:4406:7a0:50d::5",
+      "kavlan-18": "2001:660:4406:8a0:50d::5",
+      "kavlan-2": "2001:660:4406:581:d::5",
+      "kavlan-20": "2001:660:4406:3a0:50d::5",
+      "kavlan-21": "2001:660:4406:6a0:50d::5",
+      "kavlan-3": "2001:660:4406:582:d::5",
+      "kavlan-4": "2001:660:4406:590:d::5",
+      "kavlan-5": "2001:660:4406:591:d::5",
+      "kavlan-6": "2001:660:4406:592:d::5",
+      "kavlan-7": "2001:660:4406:593:d::5",
+      "kavlan-8": "2001:660:4406:594:d::5",
+      "kavlan-9": "2001:660:4406:595:d::5"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.5",
-      "ip6": "2001:660:4406:500:d:0::5",
+      "ip6": "2001:660:4406:500:d::5",
       "kavlan": true,
       "mac": "3c:fd:fe:57:bc:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-50.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-50.json
index a0d479b5ea3f704da37a6ad4686ae70a4a6fd673..9473dbf6402f452ac8ecb2e1027f0f762e283f3c 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-50.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-50.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::32",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::32",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::32",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::32",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::32",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::32",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::32",
-      "kavlan-2": "2001:660:4406:581:d:0::32",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::32",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::32",
-      "kavlan-3": "2001:660:4406:582:d:0::32",
-      "kavlan-4": "2001:660:4406:590:d:0::32",
-      "kavlan-5": "2001:660:4406:591:d:0::32",
-      "kavlan-6": "2001:660:4406:592:d:0::32",
-      "kavlan-7": "2001:660:4406:593:d:0::32",
-      "kavlan-8": "2001:660:4406:594:d:0::32",
-      "kavlan-9": "2001:660:4406:595:d:0::32"
+      "kavlan-1": "2001:660:4406:580:d::32",
+      "kavlan-11": "2001:660:4406:1a0:50d::32",
+      "kavlan-12": "2001:660:4406:2a0:50d::32",
+      "kavlan-13": "2001:660:4406:4a0:50d::32",
+      "kavlan-14": "2001:660:4406:5a0:50d::32",
+      "kavlan-16": "2001:660:4406:7a0:50d::32",
+      "kavlan-18": "2001:660:4406:8a0:50d::32",
+      "kavlan-2": "2001:660:4406:581:d::32",
+      "kavlan-20": "2001:660:4406:3a0:50d::32",
+      "kavlan-21": "2001:660:4406:6a0:50d::32",
+      "kavlan-3": "2001:660:4406:582:d::32",
+      "kavlan-4": "2001:660:4406:590:d::32",
+      "kavlan-5": "2001:660:4406:591:d::32",
+      "kavlan-6": "2001:660:4406:592:d::32",
+      "kavlan-7": "2001:660:4406:593:d::32",
+      "kavlan-8": "2001:660:4406:594:d::32",
+      "kavlan-9": "2001:660:4406:595:d::32"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.50",
-      "ip6": "2001:660:4406:500:d:0::32",
+      "ip6": "2001:660:4406:500:d::32",
       "kavlan": true,
       "mac": "3c:fd:fe:57:b2:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-51.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-51.json
index 2fe9a7ec2f6b569c83f38bc2870a049d2547db01..9bb55ba244b4ea95e5e627c817237a0607c94398 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-51.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-51.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::33",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::33",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::33",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::33",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::33",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::33",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::33",
-      "kavlan-2": "2001:660:4406:581:d:0::33",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::33",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::33",
-      "kavlan-3": "2001:660:4406:582:d:0::33",
-      "kavlan-4": "2001:660:4406:590:d:0::33",
-      "kavlan-5": "2001:660:4406:591:d:0::33",
-      "kavlan-6": "2001:660:4406:592:d:0::33",
-      "kavlan-7": "2001:660:4406:593:d:0::33",
-      "kavlan-8": "2001:660:4406:594:d:0::33",
-      "kavlan-9": "2001:660:4406:595:d:0::33"
+      "kavlan-1": "2001:660:4406:580:d::33",
+      "kavlan-11": "2001:660:4406:1a0:50d::33",
+      "kavlan-12": "2001:660:4406:2a0:50d::33",
+      "kavlan-13": "2001:660:4406:4a0:50d::33",
+      "kavlan-14": "2001:660:4406:5a0:50d::33",
+      "kavlan-16": "2001:660:4406:7a0:50d::33",
+      "kavlan-18": "2001:660:4406:8a0:50d::33",
+      "kavlan-2": "2001:660:4406:581:d::33",
+      "kavlan-20": "2001:660:4406:3a0:50d::33",
+      "kavlan-21": "2001:660:4406:6a0:50d::33",
+      "kavlan-3": "2001:660:4406:582:d::33",
+      "kavlan-4": "2001:660:4406:590:d::33",
+      "kavlan-5": "2001:660:4406:591:d::33",
+      "kavlan-6": "2001:660:4406:592:d::33",
+      "kavlan-7": "2001:660:4406:593:d::33",
+      "kavlan-8": "2001:660:4406:594:d::33",
+      "kavlan-9": "2001:660:4406:595:d::33"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.51",
-      "ip6": "2001:660:4406:500:d:0::33",
+      "ip6": "2001:660:4406:500:d::33",
       "kavlan": true,
       "mac": "3c:fd:fe:57:64:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-52.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-52.json
index 46d94e0ba9ebad4075fbf42b45e71a0b35171cb8..49406ab2b3fdd31f3a5ea22b51e7775ead6e80e6 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-52.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-52.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::34",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::34",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::34",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::34",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::34",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::34",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::34",
-      "kavlan-2": "2001:660:4406:581:d:0::34",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::34",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::34",
-      "kavlan-3": "2001:660:4406:582:d:0::34",
-      "kavlan-4": "2001:660:4406:590:d:0::34",
-      "kavlan-5": "2001:660:4406:591:d:0::34",
-      "kavlan-6": "2001:660:4406:592:d:0::34",
-      "kavlan-7": "2001:660:4406:593:d:0::34",
-      "kavlan-8": "2001:660:4406:594:d:0::34",
-      "kavlan-9": "2001:660:4406:595:d:0::34"
+      "kavlan-1": "2001:660:4406:580:d::34",
+      "kavlan-11": "2001:660:4406:1a0:50d::34",
+      "kavlan-12": "2001:660:4406:2a0:50d::34",
+      "kavlan-13": "2001:660:4406:4a0:50d::34",
+      "kavlan-14": "2001:660:4406:5a0:50d::34",
+      "kavlan-16": "2001:660:4406:7a0:50d::34",
+      "kavlan-18": "2001:660:4406:8a0:50d::34",
+      "kavlan-2": "2001:660:4406:581:d::34",
+      "kavlan-20": "2001:660:4406:3a0:50d::34",
+      "kavlan-21": "2001:660:4406:6a0:50d::34",
+      "kavlan-3": "2001:660:4406:582:d::34",
+      "kavlan-4": "2001:660:4406:590:d::34",
+      "kavlan-5": "2001:660:4406:591:d::34",
+      "kavlan-6": "2001:660:4406:592:d::34",
+      "kavlan-7": "2001:660:4406:593:d::34",
+      "kavlan-8": "2001:660:4406:594:d::34",
+      "kavlan-9": "2001:660:4406:595:d::34"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.52",
-      "ip6": "2001:660:4406:500:d:0::34",
+      "ip6": "2001:660:4406:500:d::34",
       "kavlan": true,
       "mac": "3c:fd:fe:57:d1:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-53.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-53.json
index e8f865723b5790e096d545dfcdb668595c0e1016..c296eb6954ca27a9fb09b638df6602c752972de4 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-53.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-53.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::35",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::35",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::35",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::35",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::35",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::35",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::35",
-      "kavlan-2": "2001:660:4406:581:d:0::35",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::35",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::35",
-      "kavlan-3": "2001:660:4406:582:d:0::35",
-      "kavlan-4": "2001:660:4406:590:d:0::35",
-      "kavlan-5": "2001:660:4406:591:d:0::35",
-      "kavlan-6": "2001:660:4406:592:d:0::35",
-      "kavlan-7": "2001:660:4406:593:d:0::35",
-      "kavlan-8": "2001:660:4406:594:d:0::35",
-      "kavlan-9": "2001:660:4406:595:d:0::35"
+      "kavlan-1": "2001:660:4406:580:d::35",
+      "kavlan-11": "2001:660:4406:1a0:50d::35",
+      "kavlan-12": "2001:660:4406:2a0:50d::35",
+      "kavlan-13": "2001:660:4406:4a0:50d::35",
+      "kavlan-14": "2001:660:4406:5a0:50d::35",
+      "kavlan-16": "2001:660:4406:7a0:50d::35",
+      "kavlan-18": "2001:660:4406:8a0:50d::35",
+      "kavlan-2": "2001:660:4406:581:d::35",
+      "kavlan-20": "2001:660:4406:3a0:50d::35",
+      "kavlan-21": "2001:660:4406:6a0:50d::35",
+      "kavlan-3": "2001:660:4406:582:d::35",
+      "kavlan-4": "2001:660:4406:590:d::35",
+      "kavlan-5": "2001:660:4406:591:d::35",
+      "kavlan-6": "2001:660:4406:592:d::35",
+      "kavlan-7": "2001:660:4406:593:d::35",
+      "kavlan-8": "2001:660:4406:594:d::35",
+      "kavlan-9": "2001:660:4406:595:d::35"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.53",
-      "ip6": "2001:660:4406:500:d:0::35",
+      "ip6": "2001:660:4406:500:d::35",
       "kavlan": true,
       "mac": "3c:fd:fe:56:ea:00",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-54.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-54.json
index a62fcd237d8c06fd28a4f66249c5e261ee920678..16373a46f77d0b143f685c132543e595ba0ca631 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-54.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-54.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::36",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::36",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::36",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::36",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::36",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::36",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::36",
-      "kavlan-2": "2001:660:4406:581:d:0::36",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::36",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::36",
-      "kavlan-3": "2001:660:4406:582:d:0::36",
-      "kavlan-4": "2001:660:4406:590:d:0::36",
-      "kavlan-5": "2001:660:4406:591:d:0::36",
-      "kavlan-6": "2001:660:4406:592:d:0::36",
-      "kavlan-7": "2001:660:4406:593:d:0::36",
-      "kavlan-8": "2001:660:4406:594:d:0::36",
-      "kavlan-9": "2001:660:4406:595:d:0::36"
+      "kavlan-1": "2001:660:4406:580:d::36",
+      "kavlan-11": "2001:660:4406:1a0:50d::36",
+      "kavlan-12": "2001:660:4406:2a0:50d::36",
+      "kavlan-13": "2001:660:4406:4a0:50d::36",
+      "kavlan-14": "2001:660:4406:5a0:50d::36",
+      "kavlan-16": "2001:660:4406:7a0:50d::36",
+      "kavlan-18": "2001:660:4406:8a0:50d::36",
+      "kavlan-2": "2001:660:4406:581:d::36",
+      "kavlan-20": "2001:660:4406:3a0:50d::36",
+      "kavlan-21": "2001:660:4406:6a0:50d::36",
+      "kavlan-3": "2001:660:4406:582:d::36",
+      "kavlan-4": "2001:660:4406:590:d::36",
+      "kavlan-5": "2001:660:4406:591:d::36",
+      "kavlan-6": "2001:660:4406:592:d::36",
+      "kavlan-7": "2001:660:4406:593:d::36",
+      "kavlan-8": "2001:660:4406:594:d::36",
+      "kavlan-9": "2001:660:4406:595:d::36"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.54",
-      "ip6": "2001:660:4406:500:d:0::36",
+      "ip6": "2001:660:4406:500:d::36",
       "kavlan": true,
       "mac": "3c:fd:fe:56:dc:60",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-55.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-55.json
index 52d233a9c2fff501610e1edd28a79546d8a3fc0b..7de5f8c2c2d8a736e9a92d11628dcd14584cb864 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-55.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-55.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::37",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::37",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::37",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::37",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::37",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::37",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::37",
-      "kavlan-2": "2001:660:4406:581:d:0::37",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::37",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::37",
-      "kavlan-3": "2001:660:4406:582:d:0::37",
-      "kavlan-4": "2001:660:4406:590:d:0::37",
-      "kavlan-5": "2001:660:4406:591:d:0::37",
-      "kavlan-6": "2001:660:4406:592:d:0::37",
-      "kavlan-7": "2001:660:4406:593:d:0::37",
-      "kavlan-8": "2001:660:4406:594:d:0::37",
-      "kavlan-9": "2001:660:4406:595:d:0::37"
+      "kavlan-1": "2001:660:4406:580:d::37",
+      "kavlan-11": "2001:660:4406:1a0:50d::37",
+      "kavlan-12": "2001:660:4406:2a0:50d::37",
+      "kavlan-13": "2001:660:4406:4a0:50d::37",
+      "kavlan-14": "2001:660:4406:5a0:50d::37",
+      "kavlan-16": "2001:660:4406:7a0:50d::37",
+      "kavlan-18": "2001:660:4406:8a0:50d::37",
+      "kavlan-2": "2001:660:4406:581:d::37",
+      "kavlan-20": "2001:660:4406:3a0:50d::37",
+      "kavlan-21": "2001:660:4406:6a0:50d::37",
+      "kavlan-3": "2001:660:4406:582:d::37",
+      "kavlan-4": "2001:660:4406:590:d::37",
+      "kavlan-5": "2001:660:4406:591:d::37",
+      "kavlan-6": "2001:660:4406:592:d::37",
+      "kavlan-7": "2001:660:4406:593:d::37",
+      "kavlan-8": "2001:660:4406:594:d::37",
+      "kavlan-9": "2001:660:4406:595:d::37"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.55",
-      "ip6": "2001:660:4406:500:d:0::37",
+      "ip6": "2001:660:4406:500:d::37",
       "kavlan": true,
       "mac": "3c:fd:fe:57:ab:18",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-56.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-56.json
index 31f9143bdfaa0675b8940160bf72721c34427c34..2a963bda26131ce43a71f800ce64a9cb13ca754e 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-56.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-56.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::38",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::38",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::38",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::38",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::38",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::38",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::38",
-      "kavlan-2": "2001:660:4406:581:d:0::38",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::38",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::38",
-      "kavlan-3": "2001:660:4406:582:d:0::38",
-      "kavlan-4": "2001:660:4406:590:d:0::38",
-      "kavlan-5": "2001:660:4406:591:d:0::38",
-      "kavlan-6": "2001:660:4406:592:d:0::38",
-      "kavlan-7": "2001:660:4406:593:d:0::38",
-      "kavlan-8": "2001:660:4406:594:d:0::38",
-      "kavlan-9": "2001:660:4406:595:d:0::38"
+      "kavlan-1": "2001:660:4406:580:d::38",
+      "kavlan-11": "2001:660:4406:1a0:50d::38",
+      "kavlan-12": "2001:660:4406:2a0:50d::38",
+      "kavlan-13": "2001:660:4406:4a0:50d::38",
+      "kavlan-14": "2001:660:4406:5a0:50d::38",
+      "kavlan-16": "2001:660:4406:7a0:50d::38",
+      "kavlan-18": "2001:660:4406:8a0:50d::38",
+      "kavlan-2": "2001:660:4406:581:d::38",
+      "kavlan-20": "2001:660:4406:3a0:50d::38",
+      "kavlan-21": "2001:660:4406:6a0:50d::38",
+      "kavlan-3": "2001:660:4406:582:d::38",
+      "kavlan-4": "2001:660:4406:590:d::38",
+      "kavlan-5": "2001:660:4406:591:d::38",
+      "kavlan-6": "2001:660:4406:592:d::38",
+      "kavlan-7": "2001:660:4406:593:d::38",
+      "kavlan-8": "2001:660:4406:594:d::38",
+      "kavlan-9": "2001:660:4406:595:d::38"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.56",
-      "ip6": "2001:660:4406:500:d:0::38",
+      "ip6": "2001:660:4406:500:d::38",
       "kavlan": true,
       "mac": "3c:fd:fe:57:69:58",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-57.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-57.json
index d2aace46121912ec2b858f35340e683692369e34..acf9b9fab184fa616a5b941c5474f6dbc1bc54da 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-57.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-57.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::39",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::39",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::39",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::39",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::39",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::39",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::39",
-      "kavlan-2": "2001:660:4406:581:d:0::39",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::39",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::39",
-      "kavlan-3": "2001:660:4406:582:d:0::39",
-      "kavlan-4": "2001:660:4406:590:d:0::39",
-      "kavlan-5": "2001:660:4406:591:d:0::39",
-      "kavlan-6": "2001:660:4406:592:d:0::39",
-      "kavlan-7": "2001:660:4406:593:d:0::39",
-      "kavlan-8": "2001:660:4406:594:d:0::39",
-      "kavlan-9": "2001:660:4406:595:d:0::39"
+      "kavlan-1": "2001:660:4406:580:d::39",
+      "kavlan-11": "2001:660:4406:1a0:50d::39",
+      "kavlan-12": "2001:660:4406:2a0:50d::39",
+      "kavlan-13": "2001:660:4406:4a0:50d::39",
+      "kavlan-14": "2001:660:4406:5a0:50d::39",
+      "kavlan-16": "2001:660:4406:7a0:50d::39",
+      "kavlan-18": "2001:660:4406:8a0:50d::39",
+      "kavlan-2": "2001:660:4406:581:d::39",
+      "kavlan-20": "2001:660:4406:3a0:50d::39",
+      "kavlan-21": "2001:660:4406:6a0:50d::39",
+      "kavlan-3": "2001:660:4406:582:d::39",
+      "kavlan-4": "2001:660:4406:590:d::39",
+      "kavlan-5": "2001:660:4406:591:d::39",
+      "kavlan-6": "2001:660:4406:592:d::39",
+      "kavlan-7": "2001:660:4406:593:d::39",
+      "kavlan-8": "2001:660:4406:594:d::39",
+      "kavlan-9": "2001:660:4406:595:d::39"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.57",
-      "ip6": "2001:660:4406:500:d:0::39",
+      "ip6": "2001:660:4406:500:d::39",
       "kavlan": true,
       "mac": "3c:fd:fe:58:04:58",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-58.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-58.json
index 88b94295a1b0bbcee803bf22eb97bf6813bab2cc..a4869fd216a0cbee442446ae77fe34481255b347 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-58.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-58.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::3a",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::3a",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::3a",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::3a",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::3a",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::3a",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::3a",
-      "kavlan-2": "2001:660:4406:581:d:0::3a",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::3a",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::3a",
-      "kavlan-3": "2001:660:4406:582:d:0::3a",
-      "kavlan-4": "2001:660:4406:590:d:0::3a",
-      "kavlan-5": "2001:660:4406:591:d:0::3a",
-      "kavlan-6": "2001:660:4406:592:d:0::3a",
-      "kavlan-7": "2001:660:4406:593:d:0::3a",
-      "kavlan-8": "2001:660:4406:594:d:0::3a",
-      "kavlan-9": "2001:660:4406:595:d:0::3a"
+      "kavlan-1": "2001:660:4406:580:d::3a",
+      "kavlan-11": "2001:660:4406:1a0:50d::3a",
+      "kavlan-12": "2001:660:4406:2a0:50d::3a",
+      "kavlan-13": "2001:660:4406:4a0:50d::3a",
+      "kavlan-14": "2001:660:4406:5a0:50d::3a",
+      "kavlan-16": "2001:660:4406:7a0:50d::3a",
+      "kavlan-18": "2001:660:4406:8a0:50d::3a",
+      "kavlan-2": "2001:660:4406:581:d::3a",
+      "kavlan-20": "2001:660:4406:3a0:50d::3a",
+      "kavlan-21": "2001:660:4406:6a0:50d::3a",
+      "kavlan-3": "2001:660:4406:582:d::3a",
+      "kavlan-4": "2001:660:4406:590:d::3a",
+      "kavlan-5": "2001:660:4406:591:d::3a",
+      "kavlan-6": "2001:660:4406:592:d::3a",
+      "kavlan-7": "2001:660:4406:593:d::3a",
+      "kavlan-8": "2001:660:4406:594:d::3a",
+      "kavlan-9": "2001:660:4406:595:d::3a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.58",
-      "ip6": "2001:660:4406:500:d:0::3a",
+      "ip6": "2001:660:4406:500:d::3a",
       "kavlan": true,
       "mac": "3c:fd:fe:58:13:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-59.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-59.json
index f4f61390730dfe4d8af8c99f3dd8dfad78cd5bd1..e31fa31d2e383fc95a398cbe66c20c7c3616afd7 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-59.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-59.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::3b",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::3b",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::3b",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::3b",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::3b",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::3b",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::3b",
-      "kavlan-2": "2001:660:4406:581:d:0::3b",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::3b",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::3b",
-      "kavlan-3": "2001:660:4406:582:d:0::3b",
-      "kavlan-4": "2001:660:4406:590:d:0::3b",
-      "kavlan-5": "2001:660:4406:591:d:0::3b",
-      "kavlan-6": "2001:660:4406:592:d:0::3b",
-      "kavlan-7": "2001:660:4406:593:d:0::3b",
-      "kavlan-8": "2001:660:4406:594:d:0::3b",
-      "kavlan-9": "2001:660:4406:595:d:0::3b"
+      "kavlan-1": "2001:660:4406:580:d::3b",
+      "kavlan-11": "2001:660:4406:1a0:50d::3b",
+      "kavlan-12": "2001:660:4406:2a0:50d::3b",
+      "kavlan-13": "2001:660:4406:4a0:50d::3b",
+      "kavlan-14": "2001:660:4406:5a0:50d::3b",
+      "kavlan-16": "2001:660:4406:7a0:50d::3b",
+      "kavlan-18": "2001:660:4406:8a0:50d::3b",
+      "kavlan-2": "2001:660:4406:581:d::3b",
+      "kavlan-20": "2001:660:4406:3a0:50d::3b",
+      "kavlan-21": "2001:660:4406:6a0:50d::3b",
+      "kavlan-3": "2001:660:4406:582:d::3b",
+      "kavlan-4": "2001:660:4406:590:d::3b",
+      "kavlan-5": "2001:660:4406:591:d::3b",
+      "kavlan-6": "2001:660:4406:592:d::3b",
+      "kavlan-7": "2001:660:4406:593:d::3b",
+      "kavlan-8": "2001:660:4406:594:d::3b",
+      "kavlan-9": "2001:660:4406:595:d::3b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.59",
-      "ip6": "2001:660:4406:500:d:0::3b",
+      "ip6": "2001:660:4406:500:d::3b",
       "kavlan": true,
       "mac": "3c:fd:fe:58:02:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-6.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-6.json
index 45d3f26463341a33ac44c6ea911b42d529c951d4..6c1bbdbf1e52f8d7513327376523a10ec493d463 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-6.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::6",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::6",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::6",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::6",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::6",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::6",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::6",
-      "kavlan-2": "2001:660:4406:581:d:0::6",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::6",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::6",
-      "kavlan-3": "2001:660:4406:582:d:0::6",
-      "kavlan-4": "2001:660:4406:590:d:0::6",
-      "kavlan-5": "2001:660:4406:591:d:0::6",
-      "kavlan-6": "2001:660:4406:592:d:0::6",
-      "kavlan-7": "2001:660:4406:593:d:0::6",
-      "kavlan-8": "2001:660:4406:594:d:0::6",
-      "kavlan-9": "2001:660:4406:595:d:0::6"
+      "kavlan-1": "2001:660:4406:580:d::6",
+      "kavlan-11": "2001:660:4406:1a0:50d::6",
+      "kavlan-12": "2001:660:4406:2a0:50d::6",
+      "kavlan-13": "2001:660:4406:4a0:50d::6",
+      "kavlan-14": "2001:660:4406:5a0:50d::6",
+      "kavlan-16": "2001:660:4406:7a0:50d::6",
+      "kavlan-18": "2001:660:4406:8a0:50d::6",
+      "kavlan-2": "2001:660:4406:581:d::6",
+      "kavlan-20": "2001:660:4406:3a0:50d::6",
+      "kavlan-21": "2001:660:4406:6a0:50d::6",
+      "kavlan-3": "2001:660:4406:582:d::6",
+      "kavlan-4": "2001:660:4406:590:d::6",
+      "kavlan-5": "2001:660:4406:591:d::6",
+      "kavlan-6": "2001:660:4406:592:d::6",
+      "kavlan-7": "2001:660:4406:593:d::6",
+      "kavlan-8": "2001:660:4406:594:d::6",
+      "kavlan-9": "2001:660:4406:595:d::6"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.6",
-      "ip6": "2001:660:4406:500:d:0::6",
+      "ip6": "2001:660:4406:500:d::6",
       "kavlan": true,
       "mac": "3c:fd:fe:57:a6:d8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-60.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-60.json
index 7098c0229734b4055f54ce4c0e3830f512b19702..5e5ffdbe03e2a398f9c39eae7b0d7098cea24c86 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-60.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-60.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::3c",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::3c",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::3c",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::3c",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::3c",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::3c",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::3c",
-      "kavlan-2": "2001:660:4406:581:d:0::3c",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::3c",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::3c",
-      "kavlan-3": "2001:660:4406:582:d:0::3c",
-      "kavlan-4": "2001:660:4406:590:d:0::3c",
-      "kavlan-5": "2001:660:4406:591:d:0::3c",
-      "kavlan-6": "2001:660:4406:592:d:0::3c",
-      "kavlan-7": "2001:660:4406:593:d:0::3c",
-      "kavlan-8": "2001:660:4406:594:d:0::3c",
-      "kavlan-9": "2001:660:4406:595:d:0::3c"
+      "kavlan-1": "2001:660:4406:580:d::3c",
+      "kavlan-11": "2001:660:4406:1a0:50d::3c",
+      "kavlan-12": "2001:660:4406:2a0:50d::3c",
+      "kavlan-13": "2001:660:4406:4a0:50d::3c",
+      "kavlan-14": "2001:660:4406:5a0:50d::3c",
+      "kavlan-16": "2001:660:4406:7a0:50d::3c",
+      "kavlan-18": "2001:660:4406:8a0:50d::3c",
+      "kavlan-2": "2001:660:4406:581:d::3c",
+      "kavlan-20": "2001:660:4406:3a0:50d::3c",
+      "kavlan-21": "2001:660:4406:6a0:50d::3c",
+      "kavlan-3": "2001:660:4406:582:d::3c",
+      "kavlan-4": "2001:660:4406:590:d::3c",
+      "kavlan-5": "2001:660:4406:591:d::3c",
+      "kavlan-6": "2001:660:4406:592:d::3c",
+      "kavlan-7": "2001:660:4406:593:d::3c",
+      "kavlan-8": "2001:660:4406:594:d::3c",
+      "kavlan-9": "2001:660:4406:595:d::3c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.60",
-      "ip6": "2001:660:4406:500:d:0::3c",
+      "ip6": "2001:660:4406:500:d::3c",
       "kavlan": true,
       "mac": "3c:fd:fe:58:04:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-61.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-61.json
index 185b8c6873aa8e55b8854c381b6623f2fbde58d3..a6b5ec1d2de166f10e929be03cd446f4a3f4ddc1 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-61.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-61.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::3d",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::3d",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::3d",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::3d",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::3d",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::3d",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::3d",
-      "kavlan-2": "2001:660:4406:581:d:0::3d",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::3d",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::3d",
-      "kavlan-3": "2001:660:4406:582:d:0::3d",
-      "kavlan-4": "2001:660:4406:590:d:0::3d",
-      "kavlan-5": "2001:660:4406:591:d:0::3d",
-      "kavlan-6": "2001:660:4406:592:d:0::3d",
-      "kavlan-7": "2001:660:4406:593:d:0::3d",
-      "kavlan-8": "2001:660:4406:594:d:0::3d",
-      "kavlan-9": "2001:660:4406:595:d:0::3d"
+      "kavlan-1": "2001:660:4406:580:d::3d",
+      "kavlan-11": "2001:660:4406:1a0:50d::3d",
+      "kavlan-12": "2001:660:4406:2a0:50d::3d",
+      "kavlan-13": "2001:660:4406:4a0:50d::3d",
+      "kavlan-14": "2001:660:4406:5a0:50d::3d",
+      "kavlan-16": "2001:660:4406:7a0:50d::3d",
+      "kavlan-18": "2001:660:4406:8a0:50d::3d",
+      "kavlan-2": "2001:660:4406:581:d::3d",
+      "kavlan-20": "2001:660:4406:3a0:50d::3d",
+      "kavlan-21": "2001:660:4406:6a0:50d::3d",
+      "kavlan-3": "2001:660:4406:582:d::3d",
+      "kavlan-4": "2001:660:4406:590:d::3d",
+      "kavlan-5": "2001:660:4406:591:d::3d",
+      "kavlan-6": "2001:660:4406:592:d::3d",
+      "kavlan-7": "2001:660:4406:593:d::3d",
+      "kavlan-8": "2001:660:4406:594:d::3d",
+      "kavlan-9": "2001:660:4406:595:d::3d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.61",
-      "ip6": "2001:660:4406:500:d:0::3d",
+      "ip6": "2001:660:4406:500:d::3d",
       "kavlan": true,
       "mac": "3c:fd:fe:57:69:18",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-62.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-62.json
index a0717572955677e599aa4252d66a947272ddc7d1..85e7d0670b7a6f1b460354f69ff6d700c4106657 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-62.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-62.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::3e",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::3e",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::3e",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::3e",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::3e",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::3e",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::3e",
-      "kavlan-2": "2001:660:4406:581:d:0::3e",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::3e",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::3e",
-      "kavlan-3": "2001:660:4406:582:d:0::3e",
-      "kavlan-4": "2001:660:4406:590:d:0::3e",
-      "kavlan-5": "2001:660:4406:591:d:0::3e",
-      "kavlan-6": "2001:660:4406:592:d:0::3e",
-      "kavlan-7": "2001:660:4406:593:d:0::3e",
-      "kavlan-8": "2001:660:4406:594:d:0::3e",
-      "kavlan-9": "2001:660:4406:595:d:0::3e"
+      "kavlan-1": "2001:660:4406:580:d::3e",
+      "kavlan-11": "2001:660:4406:1a0:50d::3e",
+      "kavlan-12": "2001:660:4406:2a0:50d::3e",
+      "kavlan-13": "2001:660:4406:4a0:50d::3e",
+      "kavlan-14": "2001:660:4406:5a0:50d::3e",
+      "kavlan-16": "2001:660:4406:7a0:50d::3e",
+      "kavlan-18": "2001:660:4406:8a0:50d::3e",
+      "kavlan-2": "2001:660:4406:581:d::3e",
+      "kavlan-20": "2001:660:4406:3a0:50d::3e",
+      "kavlan-21": "2001:660:4406:6a0:50d::3e",
+      "kavlan-3": "2001:660:4406:582:d::3e",
+      "kavlan-4": "2001:660:4406:590:d::3e",
+      "kavlan-5": "2001:660:4406:591:d::3e",
+      "kavlan-6": "2001:660:4406:592:d::3e",
+      "kavlan-7": "2001:660:4406:593:d::3e",
+      "kavlan-8": "2001:660:4406:594:d::3e",
+      "kavlan-9": "2001:660:4406:595:d::3e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.62",
-      "ip6": "2001:660:4406:500:d:0::3e",
+      "ip6": "2001:660:4406:500:d::3e",
       "kavlan": true,
       "mac": "3c:fd:fe:57:67:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-63.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-63.json
index 98565178ba239007fd3c55c7013875c0d44a12f6..5c9b110b9b627b3c7813fc67c78407e3571d4193 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-63.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-63.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::3f",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::3f",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::3f",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::3f",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::3f",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::3f",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::3f",
-      "kavlan-2": "2001:660:4406:581:d:0::3f",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::3f",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::3f",
-      "kavlan-3": "2001:660:4406:582:d:0::3f",
-      "kavlan-4": "2001:660:4406:590:d:0::3f",
-      "kavlan-5": "2001:660:4406:591:d:0::3f",
-      "kavlan-6": "2001:660:4406:592:d:0::3f",
-      "kavlan-7": "2001:660:4406:593:d:0::3f",
-      "kavlan-8": "2001:660:4406:594:d:0::3f",
-      "kavlan-9": "2001:660:4406:595:d:0::3f"
+      "kavlan-1": "2001:660:4406:580:d::3f",
+      "kavlan-11": "2001:660:4406:1a0:50d::3f",
+      "kavlan-12": "2001:660:4406:2a0:50d::3f",
+      "kavlan-13": "2001:660:4406:4a0:50d::3f",
+      "kavlan-14": "2001:660:4406:5a0:50d::3f",
+      "kavlan-16": "2001:660:4406:7a0:50d::3f",
+      "kavlan-18": "2001:660:4406:8a0:50d::3f",
+      "kavlan-2": "2001:660:4406:581:d::3f",
+      "kavlan-20": "2001:660:4406:3a0:50d::3f",
+      "kavlan-21": "2001:660:4406:6a0:50d::3f",
+      "kavlan-3": "2001:660:4406:582:d::3f",
+      "kavlan-4": "2001:660:4406:590:d::3f",
+      "kavlan-5": "2001:660:4406:591:d::3f",
+      "kavlan-6": "2001:660:4406:592:d::3f",
+      "kavlan-7": "2001:660:4406:593:d::3f",
+      "kavlan-8": "2001:660:4406:594:d::3f",
+      "kavlan-9": "2001:660:4406:595:d::3f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.63",
-      "ip6": "2001:660:4406:500:d:0::3f",
+      "ip6": "2001:660:4406:500:d::3f",
       "kavlan": true,
       "mac": "3c:fd:fe:57:90:18",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-64.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-64.json
index 57d00747f993e837c8c33a99d7692c08c5b62626..341457ac9ff86af08cfdf4268f4cee7dfd96f88e 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-64.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-64.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::40",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::40",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::40",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::40",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::40",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::40",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::40",
-      "kavlan-2": "2001:660:4406:581:d:0::40",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::40",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::40",
-      "kavlan-3": "2001:660:4406:582:d:0::40",
-      "kavlan-4": "2001:660:4406:590:d:0::40",
-      "kavlan-5": "2001:660:4406:591:d:0::40",
-      "kavlan-6": "2001:660:4406:592:d:0::40",
-      "kavlan-7": "2001:660:4406:593:d:0::40",
-      "kavlan-8": "2001:660:4406:594:d:0::40",
-      "kavlan-9": "2001:660:4406:595:d:0::40"
+      "kavlan-1": "2001:660:4406:580:d::40",
+      "kavlan-11": "2001:660:4406:1a0:50d::40",
+      "kavlan-12": "2001:660:4406:2a0:50d::40",
+      "kavlan-13": "2001:660:4406:4a0:50d::40",
+      "kavlan-14": "2001:660:4406:5a0:50d::40",
+      "kavlan-16": "2001:660:4406:7a0:50d::40",
+      "kavlan-18": "2001:660:4406:8a0:50d::40",
+      "kavlan-2": "2001:660:4406:581:d::40",
+      "kavlan-20": "2001:660:4406:3a0:50d::40",
+      "kavlan-21": "2001:660:4406:6a0:50d::40",
+      "kavlan-3": "2001:660:4406:582:d::40",
+      "kavlan-4": "2001:660:4406:590:d::40",
+      "kavlan-5": "2001:660:4406:591:d::40",
+      "kavlan-6": "2001:660:4406:592:d::40",
+      "kavlan-7": "2001:660:4406:593:d::40",
+      "kavlan-8": "2001:660:4406:594:d::40",
+      "kavlan-9": "2001:660:4406:595:d::40"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.64",
-      "ip6": "2001:660:4406:500:d:0::40",
+      "ip6": "2001:660:4406:500:d::40",
       "kavlan": true,
       "mac": "3c:fd:fe:57:7b:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-7.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-7.json
index 73aa581db897f572cccb0b5a3f6b5b501cdd0864..d2b540fec81ceac23a4a40f81e04e29fc83a813c 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-7.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::7",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::7",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::7",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::7",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::7",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::7",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::7",
-      "kavlan-2": "2001:660:4406:581:d:0::7",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::7",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::7",
-      "kavlan-3": "2001:660:4406:582:d:0::7",
-      "kavlan-4": "2001:660:4406:590:d:0::7",
-      "kavlan-5": "2001:660:4406:591:d:0::7",
-      "kavlan-6": "2001:660:4406:592:d:0::7",
-      "kavlan-7": "2001:660:4406:593:d:0::7",
-      "kavlan-8": "2001:660:4406:594:d:0::7",
-      "kavlan-9": "2001:660:4406:595:d:0::7"
+      "kavlan-1": "2001:660:4406:580:d::7",
+      "kavlan-11": "2001:660:4406:1a0:50d::7",
+      "kavlan-12": "2001:660:4406:2a0:50d::7",
+      "kavlan-13": "2001:660:4406:4a0:50d::7",
+      "kavlan-14": "2001:660:4406:5a0:50d::7",
+      "kavlan-16": "2001:660:4406:7a0:50d::7",
+      "kavlan-18": "2001:660:4406:8a0:50d::7",
+      "kavlan-2": "2001:660:4406:581:d::7",
+      "kavlan-20": "2001:660:4406:3a0:50d::7",
+      "kavlan-21": "2001:660:4406:6a0:50d::7",
+      "kavlan-3": "2001:660:4406:582:d::7",
+      "kavlan-4": "2001:660:4406:590:d::7",
+      "kavlan-5": "2001:660:4406:591:d::7",
+      "kavlan-6": "2001:660:4406:592:d::7",
+      "kavlan-7": "2001:660:4406:593:d::7",
+      "kavlan-8": "2001:660:4406:594:d::7",
+      "kavlan-9": "2001:660:4406:595:d::7"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.7",
-      "ip6": "2001:660:4406:500:d:0::7",
+      "ip6": "2001:660:4406:500:d::7",
       "kavlan": true,
       "mac": "3c:fd:fe:57:a7:38",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-8.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-8.json
index cc5b5540f954de6f965294f168ff2c192247b06f..52890e2b07566bcd9bbfb64b6cca7d968dab56b2 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-8.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::8",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::8",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::8",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::8",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::8",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::8",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::8",
-      "kavlan-2": "2001:660:4406:581:d:0::8",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::8",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::8",
-      "kavlan-3": "2001:660:4406:582:d:0::8",
-      "kavlan-4": "2001:660:4406:590:d:0::8",
-      "kavlan-5": "2001:660:4406:591:d:0::8",
-      "kavlan-6": "2001:660:4406:592:d:0::8",
-      "kavlan-7": "2001:660:4406:593:d:0::8",
-      "kavlan-8": "2001:660:4406:594:d:0::8",
-      "kavlan-9": "2001:660:4406:595:d:0::8"
+      "kavlan-1": "2001:660:4406:580:d::8",
+      "kavlan-11": "2001:660:4406:1a0:50d::8",
+      "kavlan-12": "2001:660:4406:2a0:50d::8",
+      "kavlan-13": "2001:660:4406:4a0:50d::8",
+      "kavlan-14": "2001:660:4406:5a0:50d::8",
+      "kavlan-16": "2001:660:4406:7a0:50d::8",
+      "kavlan-18": "2001:660:4406:8a0:50d::8",
+      "kavlan-2": "2001:660:4406:581:d::8",
+      "kavlan-20": "2001:660:4406:3a0:50d::8",
+      "kavlan-21": "2001:660:4406:6a0:50d::8",
+      "kavlan-3": "2001:660:4406:582:d::8",
+      "kavlan-4": "2001:660:4406:590:d::8",
+      "kavlan-5": "2001:660:4406:591:d::8",
+      "kavlan-6": "2001:660:4406:592:d::8",
+      "kavlan-7": "2001:660:4406:593:d::8",
+      "kavlan-8": "2001:660:4406:594:d::8",
+      "kavlan-9": "2001:660:4406:595:d::8"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.8",
-      "ip6": "2001:660:4406:500:d:0::8",
+      "ip6": "2001:660:4406:500:d::8",
       "kavlan": true,
       "mac": "3c:fd:fe:57:72:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-9.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-9.json
index 065ad0c35ed05ae9763f74b56b90be7724a272ee..17da2da536dbc57ebef1ee88843352d401b759d7 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-9.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d:0::9",
-      "kavlan-11": "2001:660:4406:1a0:50d:0::9",
-      "kavlan-12": "2001:660:4406:2a0:50d:0::9",
-      "kavlan-13": "2001:660:4406:4a0:50d:0::9",
-      "kavlan-14": "2001:660:4406:5a0:50d:0::9",
-      "kavlan-16": "2001:660:4406:7a0:50d:0::9",
-      "kavlan-18": "2001:660:4406:8a0:50d:0::9",
-      "kavlan-2": "2001:660:4406:581:d:0::9",
-      "kavlan-20": "2001:660:4406:3a0:50d:0::9",
-      "kavlan-21": "2001:660:4406:6a0:50d:0::9",
-      "kavlan-3": "2001:660:4406:582:d:0::9",
-      "kavlan-4": "2001:660:4406:590:d:0::9",
-      "kavlan-5": "2001:660:4406:591:d:0::9",
-      "kavlan-6": "2001:660:4406:592:d:0::9",
-      "kavlan-7": "2001:660:4406:593:d:0::9",
-      "kavlan-8": "2001:660:4406:594:d:0::9",
-      "kavlan-9": "2001:660:4406:595:d:0::9"
+      "kavlan-1": "2001:660:4406:580:d::9",
+      "kavlan-11": "2001:660:4406:1a0:50d::9",
+      "kavlan-12": "2001:660:4406:2a0:50d::9",
+      "kavlan-13": "2001:660:4406:4a0:50d::9",
+      "kavlan-14": "2001:660:4406:5a0:50d::9",
+      "kavlan-16": "2001:660:4406:7a0:50d::9",
+      "kavlan-18": "2001:660:4406:8a0:50d::9",
+      "kavlan-2": "2001:660:4406:581:d::9",
+      "kavlan-20": "2001:660:4406:3a0:50d::9",
+      "kavlan-21": "2001:660:4406:6a0:50d::9",
+      "kavlan-3": "2001:660:4406:582:d::9",
+      "kavlan-4": "2001:660:4406:590:d::9",
+      "kavlan-5": "2001:660:4406:591:d::9",
+      "kavlan-6": "2001:660:4406:592:d::9",
+      "kavlan-7": "2001:660:4406:593:d::9",
+      "kavlan-8": "2001:660:4406:594:d::9",
+      "kavlan-9": "2001:660:4406:595:d::9"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.9",
-      "ip6": "2001:660:4406:500:d:0::9",
+      "ip6": "2001:660:4406:500:d::9",
       "kavlan": true,
       "mac": "3c:fd:fe:59:19:b0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/nancy.json b/data/grid5000/sites/nancy/nancy.json
index 6081efb2581e78d9430d39da48a2313145d18775..0bba36f65ad7f43ce98ab585617685458a4de872 100644
--- a/data/grid5000/sites/nancy/nancy.json
+++ b/data/grid5000/sites/nancy/nancy.json
@@ -8,7 +8,7 @@
     "network": "10.144.0.0/14"
   },
   "ipv6": {
-    "prefix": "2001:660:4406:05",
+    "prefix": "2001:660:4406:500::/56",
     "site_global_kavlan": 14,
     "site_index": 5
   },
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-1.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-1.json
index 7715af08b6e1c99425e7963a508211f0c4c923d5..6b72765a070fa0697d42a2c68e4d99354b62dfc5 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-1.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::1",
-      "kavlan-11": "2001:660:4406:1a0:601:0::1",
-      "kavlan-12": "2001:660:4406:2a0:601:0::1",
-      "kavlan-13": "2001:660:4406:4a0:601:0::1",
-      "kavlan-14": "2001:660:4406:5a0:601:0::1",
-      "kavlan-16": "2001:660:4406:7a0:601:0::1",
-      "kavlan-18": "2001:660:4406:8a0:601:0::1",
-      "kavlan-2": "2001:660:4406:681:1:0::1",
-      "kavlan-20": "2001:660:4406:3a0:601:0::1",
-      "kavlan-21": "2001:660:4406:6a0:601:0::1",
-      "kavlan-3": "2001:660:4406:682:1:0::1",
-      "kavlan-4": "2001:660:4406:690:1:0::1",
-      "kavlan-5": "2001:660:4406:691:1:0::1",
-      "kavlan-6": "2001:660:4406:692:1:0::1",
-      "kavlan-7": "2001:660:4406:693:1:0::1",
-      "kavlan-8": "2001:660:4406:694:1:0::1",
-      "kavlan-9": "2001:660:4406:695:1:0::1"
+      "kavlan-1": "2001:660:4406:680:1::1",
+      "kavlan-11": "2001:660:4406:1a0:601::1",
+      "kavlan-12": "2001:660:4406:2a0:601::1",
+      "kavlan-13": "2001:660:4406:4a0:601::1",
+      "kavlan-14": "2001:660:4406:5a0:601::1",
+      "kavlan-16": "2001:660:4406:7a0:601::1",
+      "kavlan-18": "2001:660:4406:8a0:601::1",
+      "kavlan-2": "2001:660:4406:681:1::1",
+      "kavlan-20": "2001:660:4406:3a0:601::1",
+      "kavlan-21": "2001:660:4406:6a0:601::1",
+      "kavlan-3": "2001:660:4406:682:1::1",
+      "kavlan-4": "2001:660:4406:690:1::1",
+      "kavlan-5": "2001:660:4406:691:1::1",
+      "kavlan-6": "2001:660:4406:692:1::1",
+      "kavlan-7": "2001:660:4406:693:1::1",
+      "kavlan-8": "2001:660:4406:694:1::1",
+      "kavlan-9": "2001:660:4406:695:1::1"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.1",
-      "ip6": "2001:660:4406:600:1:0::1",
+      "ip6": "2001:660:4406:600:1::1",
       "kavlan": true,
       "mac": "a0:36:9f:0e:a1:f4",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-10.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-10.json
index 418621c1ce7ca287ad34aaa83850ed488e9fdc86..ac09ae99f544097193cffd84caf77756321a72a8 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-10.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::a",
-      "kavlan-11": "2001:660:4406:1a0:601:0::a",
-      "kavlan-12": "2001:660:4406:2a0:601:0::a",
-      "kavlan-13": "2001:660:4406:4a0:601:0::a",
-      "kavlan-14": "2001:660:4406:5a0:601:0::a",
-      "kavlan-16": "2001:660:4406:7a0:601:0::a",
-      "kavlan-18": "2001:660:4406:8a0:601:0::a",
-      "kavlan-2": "2001:660:4406:681:1:0::a",
-      "kavlan-20": "2001:660:4406:3a0:601:0::a",
-      "kavlan-21": "2001:660:4406:6a0:601:0::a",
-      "kavlan-3": "2001:660:4406:682:1:0::a",
-      "kavlan-4": "2001:660:4406:690:1:0::a",
-      "kavlan-5": "2001:660:4406:691:1:0::a",
-      "kavlan-6": "2001:660:4406:692:1:0::a",
-      "kavlan-7": "2001:660:4406:693:1:0::a",
-      "kavlan-8": "2001:660:4406:694:1:0::a",
-      "kavlan-9": "2001:660:4406:695:1:0::a"
+      "kavlan-1": "2001:660:4406:680:1::a",
+      "kavlan-11": "2001:660:4406:1a0:601::a",
+      "kavlan-12": "2001:660:4406:2a0:601::a",
+      "kavlan-13": "2001:660:4406:4a0:601::a",
+      "kavlan-14": "2001:660:4406:5a0:601::a",
+      "kavlan-16": "2001:660:4406:7a0:601::a",
+      "kavlan-18": "2001:660:4406:8a0:601::a",
+      "kavlan-2": "2001:660:4406:681:1::a",
+      "kavlan-20": "2001:660:4406:3a0:601::a",
+      "kavlan-21": "2001:660:4406:6a0:601::a",
+      "kavlan-3": "2001:660:4406:682:1::a",
+      "kavlan-4": "2001:660:4406:690:1::a",
+      "kavlan-5": "2001:660:4406:691:1::a",
+      "kavlan-6": "2001:660:4406:692:1::a",
+      "kavlan-7": "2001:660:4406:693:1::a",
+      "kavlan-8": "2001:660:4406:694:1::a",
+      "kavlan-9": "2001:660:4406:695:1::a"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.10",
-      "ip6": "2001:660:4406:600:1:0::a",
+      "ip6": "2001:660:4406:600:1::a",
       "kavlan": true,
       "mac": "a0:36:9f:0e:24:80",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-11.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-11.json
index 3fe0f853e56205bc797662f9828b0fcff481cd1c..6b6c215b8f8e65265d9e746ab5c54f0945747bcd 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-11.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::b",
-      "kavlan-11": "2001:660:4406:1a0:601:0::b",
-      "kavlan-12": "2001:660:4406:2a0:601:0::b",
-      "kavlan-13": "2001:660:4406:4a0:601:0::b",
-      "kavlan-14": "2001:660:4406:5a0:601:0::b",
-      "kavlan-16": "2001:660:4406:7a0:601:0::b",
-      "kavlan-18": "2001:660:4406:8a0:601:0::b",
-      "kavlan-2": "2001:660:4406:681:1:0::b",
-      "kavlan-20": "2001:660:4406:3a0:601:0::b",
-      "kavlan-21": "2001:660:4406:6a0:601:0::b",
-      "kavlan-3": "2001:660:4406:682:1:0::b",
-      "kavlan-4": "2001:660:4406:690:1:0::b",
-      "kavlan-5": "2001:660:4406:691:1:0::b",
-      "kavlan-6": "2001:660:4406:692:1:0::b",
-      "kavlan-7": "2001:660:4406:693:1:0::b",
-      "kavlan-8": "2001:660:4406:694:1:0::b",
-      "kavlan-9": "2001:660:4406:695:1:0::b"
+      "kavlan-1": "2001:660:4406:680:1::b",
+      "kavlan-11": "2001:660:4406:1a0:601::b",
+      "kavlan-12": "2001:660:4406:2a0:601::b",
+      "kavlan-13": "2001:660:4406:4a0:601::b",
+      "kavlan-14": "2001:660:4406:5a0:601::b",
+      "kavlan-16": "2001:660:4406:7a0:601::b",
+      "kavlan-18": "2001:660:4406:8a0:601::b",
+      "kavlan-2": "2001:660:4406:681:1::b",
+      "kavlan-20": "2001:660:4406:3a0:601::b",
+      "kavlan-21": "2001:660:4406:6a0:601::b",
+      "kavlan-3": "2001:660:4406:682:1::b",
+      "kavlan-4": "2001:660:4406:690:1::b",
+      "kavlan-5": "2001:660:4406:691:1::b",
+      "kavlan-6": "2001:660:4406:692:1::b",
+      "kavlan-7": "2001:660:4406:693:1::b",
+      "kavlan-8": "2001:660:4406:694:1::b",
+      "kavlan-9": "2001:660:4406:695:1::b"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.11",
-      "ip6": "2001:660:4406:600:1:0::b",
+      "ip6": "2001:660:4406:600:1::b",
       "kavlan": true,
       "mac": "a0:36:9f:0e:36:60",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-12.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-12.json
index 0c6a8ebac7c157b8f35eab3bfa83f7ffbd0008b4..3c2c4ee11934b75ac7c24b3af10aacca588fd3b5 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-12.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::c",
-      "kavlan-11": "2001:660:4406:1a0:601:0::c",
-      "kavlan-12": "2001:660:4406:2a0:601:0::c",
-      "kavlan-13": "2001:660:4406:4a0:601:0::c",
-      "kavlan-14": "2001:660:4406:5a0:601:0::c",
-      "kavlan-16": "2001:660:4406:7a0:601:0::c",
-      "kavlan-18": "2001:660:4406:8a0:601:0::c",
-      "kavlan-2": "2001:660:4406:681:1:0::c",
-      "kavlan-20": "2001:660:4406:3a0:601:0::c",
-      "kavlan-21": "2001:660:4406:6a0:601:0::c",
-      "kavlan-3": "2001:660:4406:682:1:0::c",
-      "kavlan-4": "2001:660:4406:690:1:0::c",
-      "kavlan-5": "2001:660:4406:691:1:0::c",
-      "kavlan-6": "2001:660:4406:692:1:0::c",
-      "kavlan-7": "2001:660:4406:693:1:0::c",
-      "kavlan-8": "2001:660:4406:694:1:0::c",
-      "kavlan-9": "2001:660:4406:695:1:0::c"
+      "kavlan-1": "2001:660:4406:680:1::c",
+      "kavlan-11": "2001:660:4406:1a0:601::c",
+      "kavlan-12": "2001:660:4406:2a0:601::c",
+      "kavlan-13": "2001:660:4406:4a0:601::c",
+      "kavlan-14": "2001:660:4406:5a0:601::c",
+      "kavlan-16": "2001:660:4406:7a0:601::c",
+      "kavlan-18": "2001:660:4406:8a0:601::c",
+      "kavlan-2": "2001:660:4406:681:1::c",
+      "kavlan-20": "2001:660:4406:3a0:601::c",
+      "kavlan-21": "2001:660:4406:6a0:601::c",
+      "kavlan-3": "2001:660:4406:682:1::c",
+      "kavlan-4": "2001:660:4406:690:1::c",
+      "kavlan-5": "2001:660:4406:691:1::c",
+      "kavlan-6": "2001:660:4406:692:1::c",
+      "kavlan-7": "2001:660:4406:693:1::c",
+      "kavlan-8": "2001:660:4406:694:1::c",
+      "kavlan-9": "2001:660:4406:695:1::c"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.12",
-      "ip6": "2001:660:4406:600:1:0::c",
+      "ip6": "2001:660:4406:600:1::c",
       "kavlan": true,
       "mac": "a0:36:9f:0e:26:e4",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-13.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-13.json
index 73ec2ba23e89116300838ddfea11bb6f5bd918a0..0b9a1d1502eacb9b05a375d7785608b6fc672a66 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-13.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::d",
-      "kavlan-11": "2001:660:4406:1a0:601:0::d",
-      "kavlan-12": "2001:660:4406:2a0:601:0::d",
-      "kavlan-13": "2001:660:4406:4a0:601:0::d",
-      "kavlan-14": "2001:660:4406:5a0:601:0::d",
-      "kavlan-16": "2001:660:4406:7a0:601:0::d",
-      "kavlan-18": "2001:660:4406:8a0:601:0::d",
-      "kavlan-2": "2001:660:4406:681:1:0::d",
-      "kavlan-20": "2001:660:4406:3a0:601:0::d",
-      "kavlan-21": "2001:660:4406:6a0:601:0::d",
-      "kavlan-3": "2001:660:4406:682:1:0::d",
-      "kavlan-4": "2001:660:4406:690:1:0::d",
-      "kavlan-5": "2001:660:4406:691:1:0::d",
-      "kavlan-6": "2001:660:4406:692:1:0::d",
-      "kavlan-7": "2001:660:4406:693:1:0::d",
-      "kavlan-8": "2001:660:4406:694:1:0::d",
-      "kavlan-9": "2001:660:4406:695:1:0::d"
+      "kavlan-1": "2001:660:4406:680:1::d",
+      "kavlan-11": "2001:660:4406:1a0:601::d",
+      "kavlan-12": "2001:660:4406:2a0:601::d",
+      "kavlan-13": "2001:660:4406:4a0:601::d",
+      "kavlan-14": "2001:660:4406:5a0:601::d",
+      "kavlan-16": "2001:660:4406:7a0:601::d",
+      "kavlan-18": "2001:660:4406:8a0:601::d",
+      "kavlan-2": "2001:660:4406:681:1::d",
+      "kavlan-20": "2001:660:4406:3a0:601::d",
+      "kavlan-21": "2001:660:4406:6a0:601::d",
+      "kavlan-3": "2001:660:4406:682:1::d",
+      "kavlan-4": "2001:660:4406:690:1::d",
+      "kavlan-5": "2001:660:4406:691:1::d",
+      "kavlan-6": "2001:660:4406:692:1::d",
+      "kavlan-7": "2001:660:4406:693:1::d",
+      "kavlan-8": "2001:660:4406:694:1::d",
+      "kavlan-9": "2001:660:4406:695:1::d"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.13",
-      "ip6": "2001:660:4406:600:1:0::d",
+      "ip6": "2001:660:4406:600:1::d",
       "kavlan": true,
       "mac": "a0:36:9f:0e:23:d4",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-14.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-14.json
index 04b561258a2d5c74114fa35c5383ba8c7e511bc4..701b7195378f720cbfc08f76d888386dafe49658 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-14.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::e",
-      "kavlan-11": "2001:660:4406:1a0:601:0::e",
-      "kavlan-12": "2001:660:4406:2a0:601:0::e",
-      "kavlan-13": "2001:660:4406:4a0:601:0::e",
-      "kavlan-14": "2001:660:4406:5a0:601:0::e",
-      "kavlan-16": "2001:660:4406:7a0:601:0::e",
-      "kavlan-18": "2001:660:4406:8a0:601:0::e",
-      "kavlan-2": "2001:660:4406:681:1:0::e",
-      "kavlan-20": "2001:660:4406:3a0:601:0::e",
-      "kavlan-21": "2001:660:4406:6a0:601:0::e",
-      "kavlan-3": "2001:660:4406:682:1:0::e",
-      "kavlan-4": "2001:660:4406:690:1:0::e",
-      "kavlan-5": "2001:660:4406:691:1:0::e",
-      "kavlan-6": "2001:660:4406:692:1:0::e",
-      "kavlan-7": "2001:660:4406:693:1:0::e",
-      "kavlan-8": "2001:660:4406:694:1:0::e",
-      "kavlan-9": "2001:660:4406:695:1:0::e"
+      "kavlan-1": "2001:660:4406:680:1::e",
+      "kavlan-11": "2001:660:4406:1a0:601::e",
+      "kavlan-12": "2001:660:4406:2a0:601::e",
+      "kavlan-13": "2001:660:4406:4a0:601::e",
+      "kavlan-14": "2001:660:4406:5a0:601::e",
+      "kavlan-16": "2001:660:4406:7a0:601::e",
+      "kavlan-18": "2001:660:4406:8a0:601::e",
+      "kavlan-2": "2001:660:4406:681:1::e",
+      "kavlan-20": "2001:660:4406:3a0:601::e",
+      "kavlan-21": "2001:660:4406:6a0:601::e",
+      "kavlan-3": "2001:660:4406:682:1::e",
+      "kavlan-4": "2001:660:4406:690:1::e",
+      "kavlan-5": "2001:660:4406:691:1::e",
+      "kavlan-6": "2001:660:4406:692:1::e",
+      "kavlan-7": "2001:660:4406:693:1::e",
+      "kavlan-8": "2001:660:4406:694:1::e",
+      "kavlan-9": "2001:660:4406:695:1::e"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.14",
-      "ip6": "2001:660:4406:600:1:0::e",
+      "ip6": "2001:660:4406:600:1::e",
       "kavlan": true,
       "mac": "a0:36:9f:0e:a2:b8",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-15.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-15.json
index 2c27fd2290ce28d71e286429d0ed954dd484e667..1b1dbd8454cd07f6e953df0fc331a3a2cd1852bf 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-15.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::f",
-      "kavlan-11": "2001:660:4406:1a0:601:0::f",
-      "kavlan-12": "2001:660:4406:2a0:601:0::f",
-      "kavlan-13": "2001:660:4406:4a0:601:0::f",
-      "kavlan-14": "2001:660:4406:5a0:601:0::f",
-      "kavlan-16": "2001:660:4406:7a0:601:0::f",
-      "kavlan-18": "2001:660:4406:8a0:601:0::f",
-      "kavlan-2": "2001:660:4406:681:1:0::f",
-      "kavlan-20": "2001:660:4406:3a0:601:0::f",
-      "kavlan-21": "2001:660:4406:6a0:601:0::f",
-      "kavlan-3": "2001:660:4406:682:1:0::f",
-      "kavlan-4": "2001:660:4406:690:1:0::f",
-      "kavlan-5": "2001:660:4406:691:1:0::f",
-      "kavlan-6": "2001:660:4406:692:1:0::f",
-      "kavlan-7": "2001:660:4406:693:1:0::f",
-      "kavlan-8": "2001:660:4406:694:1:0::f",
-      "kavlan-9": "2001:660:4406:695:1:0::f"
+      "kavlan-1": "2001:660:4406:680:1::f",
+      "kavlan-11": "2001:660:4406:1a0:601::f",
+      "kavlan-12": "2001:660:4406:2a0:601::f",
+      "kavlan-13": "2001:660:4406:4a0:601::f",
+      "kavlan-14": "2001:660:4406:5a0:601::f",
+      "kavlan-16": "2001:660:4406:7a0:601::f",
+      "kavlan-18": "2001:660:4406:8a0:601::f",
+      "kavlan-2": "2001:660:4406:681:1::f",
+      "kavlan-20": "2001:660:4406:3a0:601::f",
+      "kavlan-21": "2001:660:4406:6a0:601::f",
+      "kavlan-3": "2001:660:4406:682:1::f",
+      "kavlan-4": "2001:660:4406:690:1::f",
+      "kavlan-5": "2001:660:4406:691:1::f",
+      "kavlan-6": "2001:660:4406:692:1::f",
+      "kavlan-7": "2001:660:4406:693:1::f",
+      "kavlan-8": "2001:660:4406:694:1::f",
+      "kavlan-9": "2001:660:4406:695:1::f"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.15",
-      "ip6": "2001:660:4406:600:1:0::f",
+      "ip6": "2001:660:4406:600:1::f",
       "kavlan": true,
       "mac": "a0:36:9f:01:fd:70",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-16.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-16.json
index e6e7df9d28a7f7ff93d553e3f59057cae8d93cd4..c12607d9e46237d764a418bfd129f8bf70b62819 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-16.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::10",
-      "kavlan-11": "2001:660:4406:1a0:601:0::10",
-      "kavlan-12": "2001:660:4406:2a0:601:0::10",
-      "kavlan-13": "2001:660:4406:4a0:601:0::10",
-      "kavlan-14": "2001:660:4406:5a0:601:0::10",
-      "kavlan-16": "2001:660:4406:7a0:601:0::10",
-      "kavlan-18": "2001:660:4406:8a0:601:0::10",
-      "kavlan-2": "2001:660:4406:681:1:0::10",
-      "kavlan-20": "2001:660:4406:3a0:601:0::10",
-      "kavlan-21": "2001:660:4406:6a0:601:0::10",
-      "kavlan-3": "2001:660:4406:682:1:0::10",
-      "kavlan-4": "2001:660:4406:690:1:0::10",
-      "kavlan-5": "2001:660:4406:691:1:0::10",
-      "kavlan-6": "2001:660:4406:692:1:0::10",
-      "kavlan-7": "2001:660:4406:693:1:0::10",
-      "kavlan-8": "2001:660:4406:694:1:0::10",
-      "kavlan-9": "2001:660:4406:695:1:0::10"
+      "kavlan-1": "2001:660:4406:680:1::10",
+      "kavlan-11": "2001:660:4406:1a0:601::10",
+      "kavlan-12": "2001:660:4406:2a0:601::10",
+      "kavlan-13": "2001:660:4406:4a0:601::10",
+      "kavlan-14": "2001:660:4406:5a0:601::10",
+      "kavlan-16": "2001:660:4406:7a0:601::10",
+      "kavlan-18": "2001:660:4406:8a0:601::10",
+      "kavlan-2": "2001:660:4406:681:1::10",
+      "kavlan-20": "2001:660:4406:3a0:601::10",
+      "kavlan-21": "2001:660:4406:6a0:601::10",
+      "kavlan-3": "2001:660:4406:682:1::10",
+      "kavlan-4": "2001:660:4406:690:1::10",
+      "kavlan-5": "2001:660:4406:691:1::10",
+      "kavlan-6": "2001:660:4406:692:1::10",
+      "kavlan-7": "2001:660:4406:693:1::10",
+      "kavlan-8": "2001:660:4406:694:1::10",
+      "kavlan-9": "2001:660:4406:695:1::10"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.16",
-      "ip6": "2001:660:4406:600:1:0::10",
+      "ip6": "2001:660:4406:600:1::10",
       "kavlan": true,
       "mac": "a0:36:9f:0e:a7:dc",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-17.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-17.json
index 78f2c3cf912b3cd2b49df853944a920c73717437..caefa80c37f4fe9944db1bd8e8e4ec21539ff35f 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-17.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-17.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::11",
-      "kavlan-11": "2001:660:4406:1a0:601:0::11",
-      "kavlan-12": "2001:660:4406:2a0:601:0::11",
-      "kavlan-13": "2001:660:4406:4a0:601:0::11",
-      "kavlan-14": "2001:660:4406:5a0:601:0::11",
-      "kavlan-16": "2001:660:4406:7a0:601:0::11",
-      "kavlan-18": "2001:660:4406:8a0:601:0::11",
-      "kavlan-2": "2001:660:4406:681:1:0::11",
-      "kavlan-20": "2001:660:4406:3a0:601:0::11",
-      "kavlan-21": "2001:660:4406:6a0:601:0::11",
-      "kavlan-3": "2001:660:4406:682:1:0::11",
-      "kavlan-4": "2001:660:4406:690:1:0::11",
-      "kavlan-5": "2001:660:4406:691:1:0::11",
-      "kavlan-6": "2001:660:4406:692:1:0::11",
-      "kavlan-7": "2001:660:4406:693:1:0::11",
-      "kavlan-8": "2001:660:4406:694:1:0::11",
-      "kavlan-9": "2001:660:4406:695:1:0::11"
+      "kavlan-1": "2001:660:4406:680:1::11",
+      "kavlan-11": "2001:660:4406:1a0:601::11",
+      "kavlan-12": "2001:660:4406:2a0:601::11",
+      "kavlan-13": "2001:660:4406:4a0:601::11",
+      "kavlan-14": "2001:660:4406:5a0:601::11",
+      "kavlan-16": "2001:660:4406:7a0:601::11",
+      "kavlan-18": "2001:660:4406:8a0:601::11",
+      "kavlan-2": "2001:660:4406:681:1::11",
+      "kavlan-20": "2001:660:4406:3a0:601::11",
+      "kavlan-21": "2001:660:4406:6a0:601::11",
+      "kavlan-3": "2001:660:4406:682:1::11",
+      "kavlan-4": "2001:660:4406:690:1::11",
+      "kavlan-5": "2001:660:4406:691:1::11",
+      "kavlan-6": "2001:660:4406:692:1::11",
+      "kavlan-7": "2001:660:4406:693:1::11",
+      "kavlan-8": "2001:660:4406:694:1::11",
+      "kavlan-9": "2001:660:4406:695:1::11"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.17",
-      "ip6": "2001:660:4406:600:1:0::11",
+      "ip6": "2001:660:4406:600:1::11",
       "kavlan": true,
       "mac": "a0:36:9f:0e:a2:64",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-18.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-18.json
index caf3e4f6b24977ec2f36f7a13c69c824cfba2e33..54d7e0053443210d4a8d0ad538b5077f70e20012 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-18.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-18.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::12",
-      "kavlan-11": "2001:660:4406:1a0:601:0::12",
-      "kavlan-12": "2001:660:4406:2a0:601:0::12",
-      "kavlan-13": "2001:660:4406:4a0:601:0::12",
-      "kavlan-14": "2001:660:4406:5a0:601:0::12",
-      "kavlan-16": "2001:660:4406:7a0:601:0::12",
-      "kavlan-18": "2001:660:4406:8a0:601:0::12",
-      "kavlan-2": "2001:660:4406:681:1:0::12",
-      "kavlan-20": "2001:660:4406:3a0:601:0::12",
-      "kavlan-21": "2001:660:4406:6a0:601:0::12",
-      "kavlan-3": "2001:660:4406:682:1:0::12",
-      "kavlan-4": "2001:660:4406:690:1:0::12",
-      "kavlan-5": "2001:660:4406:691:1:0::12",
-      "kavlan-6": "2001:660:4406:692:1:0::12",
-      "kavlan-7": "2001:660:4406:693:1:0::12",
-      "kavlan-8": "2001:660:4406:694:1:0::12",
-      "kavlan-9": "2001:660:4406:695:1:0::12"
+      "kavlan-1": "2001:660:4406:680:1::12",
+      "kavlan-11": "2001:660:4406:1a0:601::12",
+      "kavlan-12": "2001:660:4406:2a0:601::12",
+      "kavlan-13": "2001:660:4406:4a0:601::12",
+      "kavlan-14": "2001:660:4406:5a0:601::12",
+      "kavlan-16": "2001:660:4406:7a0:601::12",
+      "kavlan-18": "2001:660:4406:8a0:601::12",
+      "kavlan-2": "2001:660:4406:681:1::12",
+      "kavlan-20": "2001:660:4406:3a0:601::12",
+      "kavlan-21": "2001:660:4406:6a0:601::12",
+      "kavlan-3": "2001:660:4406:682:1::12",
+      "kavlan-4": "2001:660:4406:690:1::12",
+      "kavlan-5": "2001:660:4406:691:1::12",
+      "kavlan-6": "2001:660:4406:692:1::12",
+      "kavlan-7": "2001:660:4406:693:1::12",
+      "kavlan-8": "2001:660:4406:694:1::12",
+      "kavlan-9": "2001:660:4406:695:1::12"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.18",
-      "ip6": "2001:660:4406:600:1:0::12",
+      "ip6": "2001:660:4406:600:1::12",
       "kavlan": true,
       "mac": "a0:36:9f:0e:36:a0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-19.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-19.json
index 1c4629337c1c0b951c98a8d8c21d75a9997b62c2..80b24bb244accf0df623720ec945af16af6bfed2 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-19.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-19.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::13",
-      "kavlan-11": "2001:660:4406:1a0:601:0::13",
-      "kavlan-12": "2001:660:4406:2a0:601:0::13",
-      "kavlan-13": "2001:660:4406:4a0:601:0::13",
-      "kavlan-14": "2001:660:4406:5a0:601:0::13",
-      "kavlan-16": "2001:660:4406:7a0:601:0::13",
-      "kavlan-18": "2001:660:4406:8a0:601:0::13",
-      "kavlan-2": "2001:660:4406:681:1:0::13",
-      "kavlan-20": "2001:660:4406:3a0:601:0::13",
-      "kavlan-21": "2001:660:4406:6a0:601:0::13",
-      "kavlan-3": "2001:660:4406:682:1:0::13",
-      "kavlan-4": "2001:660:4406:690:1:0::13",
-      "kavlan-5": "2001:660:4406:691:1:0::13",
-      "kavlan-6": "2001:660:4406:692:1:0::13",
-      "kavlan-7": "2001:660:4406:693:1:0::13",
-      "kavlan-8": "2001:660:4406:694:1:0::13",
-      "kavlan-9": "2001:660:4406:695:1:0::13"
+      "kavlan-1": "2001:660:4406:680:1::13",
+      "kavlan-11": "2001:660:4406:1a0:601::13",
+      "kavlan-12": "2001:660:4406:2a0:601::13",
+      "kavlan-13": "2001:660:4406:4a0:601::13",
+      "kavlan-14": "2001:660:4406:5a0:601::13",
+      "kavlan-16": "2001:660:4406:7a0:601::13",
+      "kavlan-18": "2001:660:4406:8a0:601::13",
+      "kavlan-2": "2001:660:4406:681:1::13",
+      "kavlan-20": "2001:660:4406:3a0:601::13",
+      "kavlan-21": "2001:660:4406:6a0:601::13",
+      "kavlan-3": "2001:660:4406:682:1::13",
+      "kavlan-4": "2001:660:4406:690:1::13",
+      "kavlan-5": "2001:660:4406:691:1::13",
+      "kavlan-6": "2001:660:4406:692:1::13",
+      "kavlan-7": "2001:660:4406:693:1::13",
+      "kavlan-8": "2001:660:4406:694:1::13",
+      "kavlan-9": "2001:660:4406:695:1::13"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x000161b2",
       "interface": "Ethernet",
       "ip": "172.16.192.19",
-      "ip6": "2001:660:4406:600:1:0::13",
+      "ip6": "2001:660:4406:600:1::13",
       "kavlan": true,
       "mac": "90:e2:ba:1a:6a:e0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-2.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-2.json
index 84adf8c94f9d3bed552e240fe576378abfd85222..427a484d75fec9f9bbe5512462da7cd04aa89786 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-2.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::2",
-      "kavlan-11": "2001:660:4406:1a0:601:0::2",
-      "kavlan-12": "2001:660:4406:2a0:601:0::2",
-      "kavlan-13": "2001:660:4406:4a0:601:0::2",
-      "kavlan-14": "2001:660:4406:5a0:601:0::2",
-      "kavlan-16": "2001:660:4406:7a0:601:0::2",
-      "kavlan-18": "2001:660:4406:8a0:601:0::2",
-      "kavlan-2": "2001:660:4406:681:1:0::2",
-      "kavlan-20": "2001:660:4406:3a0:601:0::2",
-      "kavlan-21": "2001:660:4406:6a0:601:0::2",
-      "kavlan-3": "2001:660:4406:682:1:0::2",
-      "kavlan-4": "2001:660:4406:690:1:0::2",
-      "kavlan-5": "2001:660:4406:691:1:0::2",
-      "kavlan-6": "2001:660:4406:692:1:0::2",
-      "kavlan-7": "2001:660:4406:693:1:0::2",
-      "kavlan-8": "2001:660:4406:694:1:0::2",
-      "kavlan-9": "2001:660:4406:695:1:0::2"
+      "kavlan-1": "2001:660:4406:680:1::2",
+      "kavlan-11": "2001:660:4406:1a0:601::2",
+      "kavlan-12": "2001:660:4406:2a0:601::2",
+      "kavlan-13": "2001:660:4406:4a0:601::2",
+      "kavlan-14": "2001:660:4406:5a0:601::2",
+      "kavlan-16": "2001:660:4406:7a0:601::2",
+      "kavlan-18": "2001:660:4406:8a0:601::2",
+      "kavlan-2": "2001:660:4406:681:1::2",
+      "kavlan-20": "2001:660:4406:3a0:601::2",
+      "kavlan-21": "2001:660:4406:6a0:601::2",
+      "kavlan-3": "2001:660:4406:682:1::2",
+      "kavlan-4": "2001:660:4406:690:1::2",
+      "kavlan-5": "2001:660:4406:691:1::2",
+      "kavlan-6": "2001:660:4406:692:1::2",
+      "kavlan-7": "2001:660:4406:693:1::2",
+      "kavlan-8": "2001:660:4406:694:1::2",
+      "kavlan-9": "2001:660:4406:695:1::2"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.2",
-      "ip6": "2001:660:4406:600:1:0::2",
+      "ip6": "2001:660:4406:600:1::2",
       "kavlan": true,
       "mac": "a0:36:9f:0e:36:38",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-20.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-20.json
index a0a993600202eb627923c3d2d06eba8ab7652a5b..6ae747ff33c66c3a63263052800f1df936f6f198 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-20.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-20.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::14",
-      "kavlan-11": "2001:660:4406:1a0:601:0::14",
-      "kavlan-12": "2001:660:4406:2a0:601:0::14",
-      "kavlan-13": "2001:660:4406:4a0:601:0::14",
-      "kavlan-14": "2001:660:4406:5a0:601:0::14",
-      "kavlan-16": "2001:660:4406:7a0:601:0::14",
-      "kavlan-18": "2001:660:4406:8a0:601:0::14",
-      "kavlan-2": "2001:660:4406:681:1:0::14",
-      "kavlan-20": "2001:660:4406:3a0:601:0::14",
-      "kavlan-21": "2001:660:4406:6a0:601:0::14",
-      "kavlan-3": "2001:660:4406:682:1:0::14",
-      "kavlan-4": "2001:660:4406:690:1:0::14",
-      "kavlan-5": "2001:660:4406:691:1:0::14",
-      "kavlan-6": "2001:660:4406:692:1:0::14",
-      "kavlan-7": "2001:660:4406:693:1:0::14",
-      "kavlan-8": "2001:660:4406:694:1:0::14",
-      "kavlan-9": "2001:660:4406:695:1:0::14"
+      "kavlan-1": "2001:660:4406:680:1::14",
+      "kavlan-11": "2001:660:4406:1a0:601::14",
+      "kavlan-12": "2001:660:4406:2a0:601::14",
+      "kavlan-13": "2001:660:4406:4a0:601::14",
+      "kavlan-14": "2001:660:4406:5a0:601::14",
+      "kavlan-16": "2001:660:4406:7a0:601::14",
+      "kavlan-18": "2001:660:4406:8a0:601::14",
+      "kavlan-2": "2001:660:4406:681:1::14",
+      "kavlan-20": "2001:660:4406:3a0:601::14",
+      "kavlan-21": "2001:660:4406:6a0:601::14",
+      "kavlan-3": "2001:660:4406:682:1::14",
+      "kavlan-4": "2001:660:4406:690:1::14",
+      "kavlan-5": "2001:660:4406:691:1::14",
+      "kavlan-6": "2001:660:4406:692:1::14",
+      "kavlan-7": "2001:660:4406:693:1::14",
+      "kavlan-8": "2001:660:4406:694:1::14",
+      "kavlan-9": "2001:660:4406:695:1::14"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x000161b2",
       "interface": "Ethernet",
       "ip": "172.16.192.20",
-      "ip6": "2001:660:4406:600:1:0::14",
+      "ip6": "2001:660:4406:600:1::14",
       "kavlan": true,
       "mac": "90:e2:ba:1a:6b:3c",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-21.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-21.json
index d14ddc5c9c005a7873645d6c447270c3060eeb65..9ff1e93405f77893e4bbaa13a130e35e8a4422b5 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-21.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-21.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::15",
-      "kavlan-11": "2001:660:4406:1a0:601:0::15",
-      "kavlan-12": "2001:660:4406:2a0:601:0::15",
-      "kavlan-13": "2001:660:4406:4a0:601:0::15",
-      "kavlan-14": "2001:660:4406:5a0:601:0::15",
-      "kavlan-16": "2001:660:4406:7a0:601:0::15",
-      "kavlan-18": "2001:660:4406:8a0:601:0::15",
-      "kavlan-2": "2001:660:4406:681:1:0::15",
-      "kavlan-20": "2001:660:4406:3a0:601:0::15",
-      "kavlan-21": "2001:660:4406:6a0:601:0::15",
-      "kavlan-3": "2001:660:4406:682:1:0::15",
-      "kavlan-4": "2001:660:4406:690:1:0::15",
-      "kavlan-5": "2001:660:4406:691:1:0::15",
-      "kavlan-6": "2001:660:4406:692:1:0::15",
-      "kavlan-7": "2001:660:4406:693:1:0::15",
-      "kavlan-8": "2001:660:4406:694:1:0::15",
-      "kavlan-9": "2001:660:4406:695:1:0::15"
+      "kavlan-1": "2001:660:4406:680:1::15",
+      "kavlan-11": "2001:660:4406:1a0:601::15",
+      "kavlan-12": "2001:660:4406:2a0:601::15",
+      "kavlan-13": "2001:660:4406:4a0:601::15",
+      "kavlan-14": "2001:660:4406:5a0:601::15",
+      "kavlan-16": "2001:660:4406:7a0:601::15",
+      "kavlan-18": "2001:660:4406:8a0:601::15",
+      "kavlan-2": "2001:660:4406:681:1::15",
+      "kavlan-20": "2001:660:4406:3a0:601::15",
+      "kavlan-21": "2001:660:4406:6a0:601::15",
+      "kavlan-3": "2001:660:4406:682:1::15",
+      "kavlan-4": "2001:660:4406:690:1::15",
+      "kavlan-5": "2001:660:4406:691:1::15",
+      "kavlan-6": "2001:660:4406:692:1::15",
+      "kavlan-7": "2001:660:4406:693:1::15",
+      "kavlan-8": "2001:660:4406:694:1::15",
+      "kavlan-9": "2001:660:4406:695:1::15"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x000161b2",
       "interface": "Ethernet",
       "ip": "172.16.192.21",
-      "ip6": "2001:660:4406:600:1:0::15",
+      "ip6": "2001:660:4406:600:1::15",
       "kavlan": true,
       "mac": "90:e2:ba:1a:69:98",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-22.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-22.json
index c460aaeac0a06eb85b1dc154cf553c25b3253f0a..fec9cb5f3eac083fa1d19c4ae7513404e671dca1 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-22.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-22.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::16",
-      "kavlan-11": "2001:660:4406:1a0:601:0::16",
-      "kavlan-12": "2001:660:4406:2a0:601:0::16",
-      "kavlan-13": "2001:660:4406:4a0:601:0::16",
-      "kavlan-14": "2001:660:4406:5a0:601:0::16",
-      "kavlan-16": "2001:660:4406:7a0:601:0::16",
-      "kavlan-18": "2001:660:4406:8a0:601:0::16",
-      "kavlan-2": "2001:660:4406:681:1:0::16",
-      "kavlan-20": "2001:660:4406:3a0:601:0::16",
-      "kavlan-21": "2001:660:4406:6a0:601:0::16",
-      "kavlan-3": "2001:660:4406:682:1:0::16",
-      "kavlan-4": "2001:660:4406:690:1:0::16",
-      "kavlan-5": "2001:660:4406:691:1:0::16",
-      "kavlan-6": "2001:660:4406:692:1:0::16",
-      "kavlan-7": "2001:660:4406:693:1:0::16",
-      "kavlan-8": "2001:660:4406:694:1:0::16",
-      "kavlan-9": "2001:660:4406:695:1:0::16"
+      "kavlan-1": "2001:660:4406:680:1::16",
+      "kavlan-11": "2001:660:4406:1a0:601::16",
+      "kavlan-12": "2001:660:4406:2a0:601::16",
+      "kavlan-13": "2001:660:4406:4a0:601::16",
+      "kavlan-14": "2001:660:4406:5a0:601::16",
+      "kavlan-16": "2001:660:4406:7a0:601::16",
+      "kavlan-18": "2001:660:4406:8a0:601::16",
+      "kavlan-2": "2001:660:4406:681:1::16",
+      "kavlan-20": "2001:660:4406:3a0:601::16",
+      "kavlan-21": "2001:660:4406:6a0:601::16",
+      "kavlan-3": "2001:660:4406:682:1::16",
+      "kavlan-4": "2001:660:4406:690:1::16",
+      "kavlan-5": "2001:660:4406:691:1::16",
+      "kavlan-6": "2001:660:4406:692:1::16",
+      "kavlan-7": "2001:660:4406:693:1::16",
+      "kavlan-8": "2001:660:4406:694:1::16",
+      "kavlan-9": "2001:660:4406:695:1::16"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x000161b2",
       "interface": "Ethernet",
       "ip": "172.16.192.22",
-      "ip6": "2001:660:4406:600:1:0::16",
+      "ip6": "2001:660:4406:600:1::16",
       "kavlan": true,
       "mac": "90:e2:ba:1a:69:c0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-3.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-3.json
index a574294c5cecb4be2723e18a91173f41a5c397f0..ba7a8ee10d0228ca896693dd4e31f8f3b033d4fb 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-3.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::3",
-      "kavlan-11": "2001:660:4406:1a0:601:0::3",
-      "kavlan-12": "2001:660:4406:2a0:601:0::3",
-      "kavlan-13": "2001:660:4406:4a0:601:0::3",
-      "kavlan-14": "2001:660:4406:5a0:601:0::3",
-      "kavlan-16": "2001:660:4406:7a0:601:0::3",
-      "kavlan-18": "2001:660:4406:8a0:601:0::3",
-      "kavlan-2": "2001:660:4406:681:1:0::3",
-      "kavlan-20": "2001:660:4406:3a0:601:0::3",
-      "kavlan-21": "2001:660:4406:6a0:601:0::3",
-      "kavlan-3": "2001:660:4406:682:1:0::3",
-      "kavlan-4": "2001:660:4406:690:1:0::3",
-      "kavlan-5": "2001:660:4406:691:1:0::3",
-      "kavlan-6": "2001:660:4406:692:1:0::3",
-      "kavlan-7": "2001:660:4406:693:1:0::3",
-      "kavlan-8": "2001:660:4406:694:1:0::3",
-      "kavlan-9": "2001:660:4406:695:1:0::3"
+      "kavlan-1": "2001:660:4406:680:1::3",
+      "kavlan-11": "2001:660:4406:1a0:601::3",
+      "kavlan-12": "2001:660:4406:2a0:601::3",
+      "kavlan-13": "2001:660:4406:4a0:601::3",
+      "kavlan-14": "2001:660:4406:5a0:601::3",
+      "kavlan-16": "2001:660:4406:7a0:601::3",
+      "kavlan-18": "2001:660:4406:8a0:601::3",
+      "kavlan-2": "2001:660:4406:681:1::3",
+      "kavlan-20": "2001:660:4406:3a0:601::3",
+      "kavlan-21": "2001:660:4406:6a0:601::3",
+      "kavlan-3": "2001:660:4406:682:1::3",
+      "kavlan-4": "2001:660:4406:690:1::3",
+      "kavlan-5": "2001:660:4406:691:1::3",
+      "kavlan-6": "2001:660:4406:692:1::3",
+      "kavlan-7": "2001:660:4406:693:1::3",
+      "kavlan-8": "2001:660:4406:694:1::3",
+      "kavlan-9": "2001:660:4406:695:1::3"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.3",
-      "ip6": "2001:660:4406:600:1:0::3",
+      "ip6": "2001:660:4406:600:1::3",
       "kavlan": true,
       "mac": "a0:36:9f:0e:35:b0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-4.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-4.json
index 4894e09f77408738c426a0f2467ce2741185bd30..ebae6b15ceb2d0f684cc7b13ad1218d7f27bcfc4 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-4.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::4",
-      "kavlan-11": "2001:660:4406:1a0:601:0::4",
-      "kavlan-12": "2001:660:4406:2a0:601:0::4",
-      "kavlan-13": "2001:660:4406:4a0:601:0::4",
-      "kavlan-14": "2001:660:4406:5a0:601:0::4",
-      "kavlan-16": "2001:660:4406:7a0:601:0::4",
-      "kavlan-18": "2001:660:4406:8a0:601:0::4",
-      "kavlan-2": "2001:660:4406:681:1:0::4",
-      "kavlan-20": "2001:660:4406:3a0:601:0::4",
-      "kavlan-21": "2001:660:4406:6a0:601:0::4",
-      "kavlan-3": "2001:660:4406:682:1:0::4",
-      "kavlan-4": "2001:660:4406:690:1:0::4",
-      "kavlan-5": "2001:660:4406:691:1:0::4",
-      "kavlan-6": "2001:660:4406:692:1:0::4",
-      "kavlan-7": "2001:660:4406:693:1:0::4",
-      "kavlan-8": "2001:660:4406:694:1:0::4",
-      "kavlan-9": "2001:660:4406:695:1:0::4"
+      "kavlan-1": "2001:660:4406:680:1::4",
+      "kavlan-11": "2001:660:4406:1a0:601::4",
+      "kavlan-12": "2001:660:4406:2a0:601::4",
+      "kavlan-13": "2001:660:4406:4a0:601::4",
+      "kavlan-14": "2001:660:4406:5a0:601::4",
+      "kavlan-16": "2001:660:4406:7a0:601::4",
+      "kavlan-18": "2001:660:4406:8a0:601::4",
+      "kavlan-2": "2001:660:4406:681:1::4",
+      "kavlan-20": "2001:660:4406:3a0:601::4",
+      "kavlan-21": "2001:660:4406:6a0:601::4",
+      "kavlan-3": "2001:660:4406:682:1::4",
+      "kavlan-4": "2001:660:4406:690:1::4",
+      "kavlan-5": "2001:660:4406:691:1::4",
+      "kavlan-6": "2001:660:4406:692:1::4",
+      "kavlan-7": "2001:660:4406:693:1::4",
+      "kavlan-8": "2001:660:4406:694:1::4",
+      "kavlan-9": "2001:660:4406:695:1::4"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.4",
-      "ip6": "2001:660:4406:600:1:0::4",
+      "ip6": "2001:660:4406:600:1::4",
       "kavlan": true,
       "mac": "a0:36:9f:0e:35:a0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-5.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-5.json
index d727996330b4ec6ae634915591d1552a73ed2a15..5d147889296d8de2caa02e7f8b0b4b84b1f977ab 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-5.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::5",
-      "kavlan-11": "2001:660:4406:1a0:601:0::5",
-      "kavlan-12": "2001:660:4406:2a0:601:0::5",
-      "kavlan-13": "2001:660:4406:4a0:601:0::5",
-      "kavlan-14": "2001:660:4406:5a0:601:0::5",
-      "kavlan-16": "2001:660:4406:7a0:601:0::5",
-      "kavlan-18": "2001:660:4406:8a0:601:0::5",
-      "kavlan-2": "2001:660:4406:681:1:0::5",
-      "kavlan-20": "2001:660:4406:3a0:601:0::5",
-      "kavlan-21": "2001:660:4406:6a0:601:0::5",
-      "kavlan-3": "2001:660:4406:682:1:0::5",
-      "kavlan-4": "2001:660:4406:690:1:0::5",
-      "kavlan-5": "2001:660:4406:691:1:0::5",
-      "kavlan-6": "2001:660:4406:692:1:0::5",
-      "kavlan-7": "2001:660:4406:693:1:0::5",
-      "kavlan-8": "2001:660:4406:694:1:0::5",
-      "kavlan-9": "2001:660:4406:695:1:0::5"
+      "kavlan-1": "2001:660:4406:680:1::5",
+      "kavlan-11": "2001:660:4406:1a0:601::5",
+      "kavlan-12": "2001:660:4406:2a0:601::5",
+      "kavlan-13": "2001:660:4406:4a0:601::5",
+      "kavlan-14": "2001:660:4406:5a0:601::5",
+      "kavlan-16": "2001:660:4406:7a0:601::5",
+      "kavlan-18": "2001:660:4406:8a0:601::5",
+      "kavlan-2": "2001:660:4406:681:1::5",
+      "kavlan-20": "2001:660:4406:3a0:601::5",
+      "kavlan-21": "2001:660:4406:6a0:601::5",
+      "kavlan-3": "2001:660:4406:682:1::5",
+      "kavlan-4": "2001:660:4406:690:1::5",
+      "kavlan-5": "2001:660:4406:691:1::5",
+      "kavlan-6": "2001:660:4406:692:1::5",
+      "kavlan-7": "2001:660:4406:693:1::5",
+      "kavlan-8": "2001:660:4406:694:1::5",
+      "kavlan-9": "2001:660:4406:695:1::5"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.5",
-      "ip6": "2001:660:4406:600:1:0::5",
+      "ip6": "2001:660:4406:600:1::5",
       "kavlan": true,
       "mac": "a0:36:9f:0e:2e:c4",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-6.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-6.json
index da3ca8fdcbc03048be84e6299fea5b71294f3d11..39e9257a961dec50fdfd32c84aaa266504747148 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-6.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::6",
-      "kavlan-11": "2001:660:4406:1a0:601:0::6",
-      "kavlan-12": "2001:660:4406:2a0:601:0::6",
-      "kavlan-13": "2001:660:4406:4a0:601:0::6",
-      "kavlan-14": "2001:660:4406:5a0:601:0::6",
-      "kavlan-16": "2001:660:4406:7a0:601:0::6",
-      "kavlan-18": "2001:660:4406:8a0:601:0::6",
-      "kavlan-2": "2001:660:4406:681:1:0::6",
-      "kavlan-20": "2001:660:4406:3a0:601:0::6",
-      "kavlan-21": "2001:660:4406:6a0:601:0::6",
-      "kavlan-3": "2001:660:4406:682:1:0::6",
-      "kavlan-4": "2001:660:4406:690:1:0::6",
-      "kavlan-5": "2001:660:4406:691:1:0::6",
-      "kavlan-6": "2001:660:4406:692:1:0::6",
-      "kavlan-7": "2001:660:4406:693:1:0::6",
-      "kavlan-8": "2001:660:4406:694:1:0::6",
-      "kavlan-9": "2001:660:4406:695:1:0::6"
+      "kavlan-1": "2001:660:4406:680:1::6",
+      "kavlan-11": "2001:660:4406:1a0:601::6",
+      "kavlan-12": "2001:660:4406:2a0:601::6",
+      "kavlan-13": "2001:660:4406:4a0:601::6",
+      "kavlan-14": "2001:660:4406:5a0:601::6",
+      "kavlan-16": "2001:660:4406:7a0:601::6",
+      "kavlan-18": "2001:660:4406:8a0:601::6",
+      "kavlan-2": "2001:660:4406:681:1::6",
+      "kavlan-20": "2001:660:4406:3a0:601::6",
+      "kavlan-21": "2001:660:4406:6a0:601::6",
+      "kavlan-3": "2001:660:4406:682:1::6",
+      "kavlan-4": "2001:660:4406:690:1::6",
+      "kavlan-5": "2001:660:4406:691:1::6",
+      "kavlan-6": "2001:660:4406:692:1::6",
+      "kavlan-7": "2001:660:4406:693:1::6",
+      "kavlan-8": "2001:660:4406:694:1::6",
+      "kavlan-9": "2001:660:4406:695:1::6"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.6",
-      "ip6": "2001:660:4406:600:1:0::6",
+      "ip6": "2001:660:4406:600:1::6",
       "kavlan": true,
       "mac": "a0:36:9f:0e:a4:90",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-7.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-7.json
index 2d37080eebeb45b2af441639e90c73041a0b024f..65bfb84160299198f6f2707c2b4f06a62f680ac7 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-7.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::7",
-      "kavlan-11": "2001:660:4406:1a0:601:0::7",
-      "kavlan-12": "2001:660:4406:2a0:601:0::7",
-      "kavlan-13": "2001:660:4406:4a0:601:0::7",
-      "kavlan-14": "2001:660:4406:5a0:601:0::7",
-      "kavlan-16": "2001:660:4406:7a0:601:0::7",
-      "kavlan-18": "2001:660:4406:8a0:601:0::7",
-      "kavlan-2": "2001:660:4406:681:1:0::7",
-      "kavlan-20": "2001:660:4406:3a0:601:0::7",
-      "kavlan-21": "2001:660:4406:6a0:601:0::7",
-      "kavlan-3": "2001:660:4406:682:1:0::7",
-      "kavlan-4": "2001:660:4406:690:1:0::7",
-      "kavlan-5": "2001:660:4406:691:1:0::7",
-      "kavlan-6": "2001:660:4406:692:1:0::7",
-      "kavlan-7": "2001:660:4406:693:1:0::7",
-      "kavlan-8": "2001:660:4406:694:1:0::7",
-      "kavlan-9": "2001:660:4406:695:1:0::7"
+      "kavlan-1": "2001:660:4406:680:1::7",
+      "kavlan-11": "2001:660:4406:1a0:601::7",
+      "kavlan-12": "2001:660:4406:2a0:601::7",
+      "kavlan-13": "2001:660:4406:4a0:601::7",
+      "kavlan-14": "2001:660:4406:5a0:601::7",
+      "kavlan-16": "2001:660:4406:7a0:601::7",
+      "kavlan-18": "2001:660:4406:8a0:601::7",
+      "kavlan-2": "2001:660:4406:681:1::7",
+      "kavlan-20": "2001:660:4406:3a0:601::7",
+      "kavlan-21": "2001:660:4406:6a0:601::7",
+      "kavlan-3": "2001:660:4406:682:1::7",
+      "kavlan-4": "2001:660:4406:690:1::7",
+      "kavlan-5": "2001:660:4406:691:1::7",
+      "kavlan-6": "2001:660:4406:692:1::7",
+      "kavlan-7": "2001:660:4406:693:1::7",
+      "kavlan-8": "2001:660:4406:694:1::7",
+      "kavlan-9": "2001:660:4406:695:1::7"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.7",
-      "ip6": "2001:660:4406:600:1:0::7",
+      "ip6": "2001:660:4406:600:1::7",
       "kavlan": true,
       "mac": "a0:36:9f:0e:24:a8",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-8.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-8.json
index f8c55c4219b625d6448839ac9bc68b9cdaa5b514..a77188c9bb827d36e21a885747905032c18cda00 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-8.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::8",
-      "kavlan-11": "2001:660:4406:1a0:601:0::8",
-      "kavlan-12": "2001:660:4406:2a0:601:0::8",
-      "kavlan-13": "2001:660:4406:4a0:601:0::8",
-      "kavlan-14": "2001:660:4406:5a0:601:0::8",
-      "kavlan-16": "2001:660:4406:7a0:601:0::8",
-      "kavlan-18": "2001:660:4406:8a0:601:0::8",
-      "kavlan-2": "2001:660:4406:681:1:0::8",
-      "kavlan-20": "2001:660:4406:3a0:601:0::8",
-      "kavlan-21": "2001:660:4406:6a0:601:0::8",
-      "kavlan-3": "2001:660:4406:682:1:0::8",
-      "kavlan-4": "2001:660:4406:690:1:0::8",
-      "kavlan-5": "2001:660:4406:691:1:0::8",
-      "kavlan-6": "2001:660:4406:692:1:0::8",
-      "kavlan-7": "2001:660:4406:693:1:0::8",
-      "kavlan-8": "2001:660:4406:694:1:0::8",
-      "kavlan-9": "2001:660:4406:695:1:0::8"
+      "kavlan-1": "2001:660:4406:680:1::8",
+      "kavlan-11": "2001:660:4406:1a0:601::8",
+      "kavlan-12": "2001:660:4406:2a0:601::8",
+      "kavlan-13": "2001:660:4406:4a0:601::8",
+      "kavlan-14": "2001:660:4406:5a0:601::8",
+      "kavlan-16": "2001:660:4406:7a0:601::8",
+      "kavlan-18": "2001:660:4406:8a0:601::8",
+      "kavlan-2": "2001:660:4406:681:1::8",
+      "kavlan-20": "2001:660:4406:3a0:601::8",
+      "kavlan-21": "2001:660:4406:6a0:601::8",
+      "kavlan-3": "2001:660:4406:682:1::8",
+      "kavlan-4": "2001:660:4406:690:1::8",
+      "kavlan-5": "2001:660:4406:691:1::8",
+      "kavlan-6": "2001:660:4406:692:1::8",
+      "kavlan-7": "2001:660:4406:693:1::8",
+      "kavlan-8": "2001:660:4406:694:1::8",
+      "kavlan-9": "2001:660:4406:695:1::8"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.8",
-      "ip6": "2001:660:4406:600:1:0::8",
+      "ip6": "2001:660:4406:600:1::8",
       "kavlan": true,
       "mac": "a0:36:9f:0e:24:8c",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-9.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-9.json
index 3441ae87db666625b75d1eabfad543a2704fb29f..15ac61fc272adc8c23ac5582b3bba9d8ea89fbd3 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-9.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1:0::9",
-      "kavlan-11": "2001:660:4406:1a0:601:0::9",
-      "kavlan-12": "2001:660:4406:2a0:601:0::9",
-      "kavlan-13": "2001:660:4406:4a0:601:0::9",
-      "kavlan-14": "2001:660:4406:5a0:601:0::9",
-      "kavlan-16": "2001:660:4406:7a0:601:0::9",
-      "kavlan-18": "2001:660:4406:8a0:601:0::9",
-      "kavlan-2": "2001:660:4406:681:1:0::9",
-      "kavlan-20": "2001:660:4406:3a0:601:0::9",
-      "kavlan-21": "2001:660:4406:6a0:601:0::9",
-      "kavlan-3": "2001:660:4406:682:1:0::9",
-      "kavlan-4": "2001:660:4406:690:1:0::9",
-      "kavlan-5": "2001:660:4406:691:1:0::9",
-      "kavlan-6": "2001:660:4406:692:1:0::9",
-      "kavlan-7": "2001:660:4406:693:1:0::9",
-      "kavlan-8": "2001:660:4406:694:1:0::9",
-      "kavlan-9": "2001:660:4406:695:1:0::9"
+      "kavlan-1": "2001:660:4406:680:1::9",
+      "kavlan-11": "2001:660:4406:1a0:601::9",
+      "kavlan-12": "2001:660:4406:2a0:601::9",
+      "kavlan-13": "2001:660:4406:4a0:601::9",
+      "kavlan-14": "2001:660:4406:5a0:601::9",
+      "kavlan-16": "2001:660:4406:7a0:601::9",
+      "kavlan-18": "2001:660:4406:8a0:601::9",
+      "kavlan-2": "2001:660:4406:681:1::9",
+      "kavlan-20": "2001:660:4406:3a0:601::9",
+      "kavlan-21": "2001:660:4406:6a0:601::9",
+      "kavlan-3": "2001:660:4406:682:1::9",
+      "kavlan-4": "2001:660:4406:690:1::9",
+      "kavlan-5": "2001:660:4406:691:1::9",
+      "kavlan-6": "2001:660:4406:692:1::9",
+      "kavlan-7": "2001:660:4406:693:1::9",
+      "kavlan-8": "2001:660:4406:694:1::9",
+      "kavlan-9": "2001:660:4406:695:1::9"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.9",
-      "ip6": "2001:660:4406:600:1:0::9",
+      "ip6": "2001:660:4406:600:1::9",
       "kavlan": true,
       "mac": "a0:36:9f:0e:36:34",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-1.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-1.json
index 483b1d9a4f9eb4e7800838239d5067151b5e446c..f6c9f52d6ac1ce995c0e9f23c34dadd86abc628e 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-1.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-1.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::1",
-      "kavlan-11": "2001:660:4406:1a0:602:0::1",
-      "kavlan-12": "2001:660:4406:2a0:602:0::1",
-      "kavlan-13": "2001:660:4406:4a0:602:0::1",
-      "kavlan-14": "2001:660:4406:5a0:602:0::1",
-      "kavlan-16": "2001:660:4406:7a0:602:0::1",
-      "kavlan-18": "2001:660:4406:8a0:602:0::1",
-      "kavlan-2": "2001:660:4406:681:2:0::1",
-      "kavlan-20": "2001:660:4406:3a0:602:0::1",
-      "kavlan-21": "2001:660:4406:6a0:602:0::1",
-      "kavlan-3": "2001:660:4406:682:2:0::1",
-      "kavlan-4": "2001:660:4406:690:2:0::1",
-      "kavlan-5": "2001:660:4406:691:2:0::1",
-      "kavlan-6": "2001:660:4406:692:2:0::1",
-      "kavlan-7": "2001:660:4406:693:2:0::1",
-      "kavlan-8": "2001:660:4406:694:2:0::1",
-      "kavlan-9": "2001:660:4406:695:2:0::1"
+      "kavlan-1": "2001:660:4406:680:2::1",
+      "kavlan-11": "2001:660:4406:1a0:602::1",
+      "kavlan-12": "2001:660:4406:2a0:602::1",
+      "kavlan-13": "2001:660:4406:4a0:602::1",
+      "kavlan-14": "2001:660:4406:5a0:602::1",
+      "kavlan-16": "2001:660:4406:7a0:602::1",
+      "kavlan-18": "2001:660:4406:8a0:602::1",
+      "kavlan-2": "2001:660:4406:681:2::1",
+      "kavlan-20": "2001:660:4406:3a0:602::1",
+      "kavlan-21": "2001:660:4406:6a0:602::1",
+      "kavlan-3": "2001:660:4406:682:2::1",
+      "kavlan-4": "2001:660:4406:690:2::1",
+      "kavlan-5": "2001:660:4406:691:2::1",
+      "kavlan-6": "2001:660:4406:692:2::1",
+      "kavlan-7": "2001:660:4406:693:2::1",
+      "kavlan-8": "2001:660:4406:694:2::1",
+      "kavlan-9": "2001:660:4406:695:2::1"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::1",
-      "kavlan-11": "2001:660:4406:1a0:602:1::1",
-      "kavlan-12": "2001:660:4406:2a0:602:1::1",
-      "kavlan-13": "2001:660:4406:4a0:602:1::1",
-      "kavlan-14": "2001:660:4406:5a0:602:1::1",
-      "kavlan-16": "2001:660:4406:7a0:602:1::1",
-      "kavlan-18": "2001:660:4406:8a0:602:1::1",
-      "kavlan-2": "2001:660:4406:681:2:1::1",
-      "kavlan-20": "2001:660:4406:3a0:602:1::1",
-      "kavlan-21": "2001:660:4406:6a0:602:1::1",
-      "kavlan-3": "2001:660:4406:682:2:1::1",
-      "kavlan-4": "2001:660:4406:690:2:1::1",
-      "kavlan-5": "2001:660:4406:691:2:1::1",
-      "kavlan-6": "2001:660:4406:692:2:1::1",
-      "kavlan-7": "2001:660:4406:693:2:1::1",
-      "kavlan-8": "2001:660:4406:694:2:1::1",
-      "kavlan-9": "2001:660:4406:695:2:1::1"
+      "kavlan-1": "2001:660:4406:680:2:1:0:1",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:1",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:1",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:1",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:1",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:1",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:1",
+      "kavlan-2": "2001:660:4406:681:2:1:0:1",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:1",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:1",
+      "kavlan-3": "2001:660:4406:682:2:1:0:1",
+      "kavlan-4": "2001:660:4406:690:2:1:0:1",
+      "kavlan-5": "2001:660:4406:691:2:1:0:1",
+      "kavlan-6": "2001:660:4406:692:2:1:0:1",
+      "kavlan-7": "2001:660:4406:693:2:1:0:1",
+      "kavlan-8": "2001:660:4406:694:2:1:0:1",
+      "kavlan-9": "2001:660:4406:695:2:1:0:1"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.1",
-      "ip6": "2001:660:4406:600:2:0::1",
+      "ip6": "2001:660:4406:600:2::1",
       "kavlan": true,
       "mac": "24:6e:96:6a:46:e0",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.1",
-      "ip6": "2001:660:4406:600:2:1::1",
+      "ip6": "2001:660:4406:600:2:1:0:1",
       "kavlan": true,
       "mac": "24:6e:96:6a:46:e2",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-10.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-10.json
index 7ea8b3ca7f07bded1b208d42084ee8ec9b01904e..a0fbd1c7356592f81d3d715620c4967d6b3937b0 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-10.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-10.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::a",
-      "kavlan-11": "2001:660:4406:1a0:602:0::a",
-      "kavlan-12": "2001:660:4406:2a0:602:0::a",
-      "kavlan-13": "2001:660:4406:4a0:602:0::a",
-      "kavlan-14": "2001:660:4406:5a0:602:0::a",
-      "kavlan-16": "2001:660:4406:7a0:602:0::a",
-      "kavlan-18": "2001:660:4406:8a0:602:0::a",
-      "kavlan-2": "2001:660:4406:681:2:0::a",
-      "kavlan-20": "2001:660:4406:3a0:602:0::a",
-      "kavlan-21": "2001:660:4406:6a0:602:0::a",
-      "kavlan-3": "2001:660:4406:682:2:0::a",
-      "kavlan-4": "2001:660:4406:690:2:0::a",
-      "kavlan-5": "2001:660:4406:691:2:0::a",
-      "kavlan-6": "2001:660:4406:692:2:0::a",
-      "kavlan-7": "2001:660:4406:693:2:0::a",
-      "kavlan-8": "2001:660:4406:694:2:0::a",
-      "kavlan-9": "2001:660:4406:695:2:0::a"
+      "kavlan-1": "2001:660:4406:680:2::a",
+      "kavlan-11": "2001:660:4406:1a0:602::a",
+      "kavlan-12": "2001:660:4406:2a0:602::a",
+      "kavlan-13": "2001:660:4406:4a0:602::a",
+      "kavlan-14": "2001:660:4406:5a0:602::a",
+      "kavlan-16": "2001:660:4406:7a0:602::a",
+      "kavlan-18": "2001:660:4406:8a0:602::a",
+      "kavlan-2": "2001:660:4406:681:2::a",
+      "kavlan-20": "2001:660:4406:3a0:602::a",
+      "kavlan-21": "2001:660:4406:6a0:602::a",
+      "kavlan-3": "2001:660:4406:682:2::a",
+      "kavlan-4": "2001:660:4406:690:2::a",
+      "kavlan-5": "2001:660:4406:691:2::a",
+      "kavlan-6": "2001:660:4406:692:2::a",
+      "kavlan-7": "2001:660:4406:693:2::a",
+      "kavlan-8": "2001:660:4406:694:2::a",
+      "kavlan-9": "2001:660:4406:695:2::a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::a",
-      "kavlan-11": "2001:660:4406:1a0:602:1::a",
-      "kavlan-12": "2001:660:4406:2a0:602:1::a",
-      "kavlan-13": "2001:660:4406:4a0:602:1::a",
-      "kavlan-14": "2001:660:4406:5a0:602:1::a",
-      "kavlan-16": "2001:660:4406:7a0:602:1::a",
-      "kavlan-18": "2001:660:4406:8a0:602:1::a",
-      "kavlan-2": "2001:660:4406:681:2:1::a",
-      "kavlan-20": "2001:660:4406:3a0:602:1::a",
-      "kavlan-21": "2001:660:4406:6a0:602:1::a",
-      "kavlan-3": "2001:660:4406:682:2:1::a",
-      "kavlan-4": "2001:660:4406:690:2:1::a",
-      "kavlan-5": "2001:660:4406:691:2:1::a",
-      "kavlan-6": "2001:660:4406:692:2:1::a",
-      "kavlan-7": "2001:660:4406:693:2:1::a",
-      "kavlan-8": "2001:660:4406:694:2:1::a",
-      "kavlan-9": "2001:660:4406:695:2:1::a"
+      "kavlan-1": "2001:660:4406:680:2:1:0:a",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:a",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:a",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:a",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:a",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:a",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:a",
+      "kavlan-2": "2001:660:4406:681:2:1:0:a",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:a",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:a",
+      "kavlan-3": "2001:660:4406:682:2:1:0:a",
+      "kavlan-4": "2001:660:4406:690:2:1:0:a",
+      "kavlan-5": "2001:660:4406:691:2:1:0:a",
+      "kavlan-6": "2001:660:4406:692:2:1:0:a",
+      "kavlan-7": "2001:660:4406:693:2:1:0:a",
+      "kavlan-8": "2001:660:4406:694:2:1:0:a",
+      "kavlan-9": "2001:660:4406:695:2:1:0:a"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.10",
-      "ip6": "2001:660:4406:600:2:0::a",
+      "ip6": "2001:660:4406:600:2::a",
       "kavlan": true,
       "mac": "24:6e:96:6a:d1:f8",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.10",
-      "ip6": "2001:660:4406:600:2:1::a",
+      "ip6": "2001:660:4406:600:2:1:0:a",
       "kavlan": true,
       "mac": "24:6e:96:6a:d1:fa",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-11.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-11.json
index 036000b07004b8311124f7d419f311239a6c18e0..a422913ad8bda305538b41fe7409377c46b656b2 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-11.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-11.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::b",
-      "kavlan-11": "2001:660:4406:1a0:602:0::b",
-      "kavlan-12": "2001:660:4406:2a0:602:0::b",
-      "kavlan-13": "2001:660:4406:4a0:602:0::b",
-      "kavlan-14": "2001:660:4406:5a0:602:0::b",
-      "kavlan-16": "2001:660:4406:7a0:602:0::b",
-      "kavlan-18": "2001:660:4406:8a0:602:0::b",
-      "kavlan-2": "2001:660:4406:681:2:0::b",
-      "kavlan-20": "2001:660:4406:3a0:602:0::b",
-      "kavlan-21": "2001:660:4406:6a0:602:0::b",
-      "kavlan-3": "2001:660:4406:682:2:0::b",
-      "kavlan-4": "2001:660:4406:690:2:0::b",
-      "kavlan-5": "2001:660:4406:691:2:0::b",
-      "kavlan-6": "2001:660:4406:692:2:0::b",
-      "kavlan-7": "2001:660:4406:693:2:0::b",
-      "kavlan-8": "2001:660:4406:694:2:0::b",
-      "kavlan-9": "2001:660:4406:695:2:0::b"
+      "kavlan-1": "2001:660:4406:680:2::b",
+      "kavlan-11": "2001:660:4406:1a0:602::b",
+      "kavlan-12": "2001:660:4406:2a0:602::b",
+      "kavlan-13": "2001:660:4406:4a0:602::b",
+      "kavlan-14": "2001:660:4406:5a0:602::b",
+      "kavlan-16": "2001:660:4406:7a0:602::b",
+      "kavlan-18": "2001:660:4406:8a0:602::b",
+      "kavlan-2": "2001:660:4406:681:2::b",
+      "kavlan-20": "2001:660:4406:3a0:602::b",
+      "kavlan-21": "2001:660:4406:6a0:602::b",
+      "kavlan-3": "2001:660:4406:682:2::b",
+      "kavlan-4": "2001:660:4406:690:2::b",
+      "kavlan-5": "2001:660:4406:691:2::b",
+      "kavlan-6": "2001:660:4406:692:2::b",
+      "kavlan-7": "2001:660:4406:693:2::b",
+      "kavlan-8": "2001:660:4406:694:2::b",
+      "kavlan-9": "2001:660:4406:695:2::b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::b",
-      "kavlan-11": "2001:660:4406:1a0:602:1::b",
-      "kavlan-12": "2001:660:4406:2a0:602:1::b",
-      "kavlan-13": "2001:660:4406:4a0:602:1::b",
-      "kavlan-14": "2001:660:4406:5a0:602:1::b",
-      "kavlan-16": "2001:660:4406:7a0:602:1::b",
-      "kavlan-18": "2001:660:4406:8a0:602:1::b",
-      "kavlan-2": "2001:660:4406:681:2:1::b",
-      "kavlan-20": "2001:660:4406:3a0:602:1::b",
-      "kavlan-21": "2001:660:4406:6a0:602:1::b",
-      "kavlan-3": "2001:660:4406:682:2:1::b",
-      "kavlan-4": "2001:660:4406:690:2:1::b",
-      "kavlan-5": "2001:660:4406:691:2:1::b",
-      "kavlan-6": "2001:660:4406:692:2:1::b",
-      "kavlan-7": "2001:660:4406:693:2:1::b",
-      "kavlan-8": "2001:660:4406:694:2:1::b",
-      "kavlan-9": "2001:660:4406:695:2:1::b"
+      "kavlan-1": "2001:660:4406:680:2:1:0:b",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:b",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:b",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:b",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:b",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:b",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:b",
+      "kavlan-2": "2001:660:4406:681:2:1:0:b",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:b",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:b",
+      "kavlan-3": "2001:660:4406:682:2:1:0:b",
+      "kavlan-4": "2001:660:4406:690:2:1:0:b",
+      "kavlan-5": "2001:660:4406:691:2:1:0:b",
+      "kavlan-6": "2001:660:4406:692:2:1:0:b",
+      "kavlan-7": "2001:660:4406:693:2:1:0:b",
+      "kavlan-8": "2001:660:4406:694:2:1:0:b",
+      "kavlan-9": "2001:660:4406:695:2:1:0:b"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.11",
-      "ip6": "2001:660:4406:600:2:0::b",
+      "ip6": "2001:660:4406:600:2::b",
       "kavlan": true,
       "mac": "24:6e:96:6a:4f:00",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.11",
-      "ip6": "2001:660:4406:600:2:1::b",
+      "ip6": "2001:660:4406:600:2:1:0:b",
       "kavlan": true,
       "mac": "24:6e:96:6a:4f:02",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-12.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-12.json
index 9b4fef2c7111dfc6a08bc16133ebda8db7723245..0f2c3edfbe933a6772cc1254565814ccf5e380ba 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-12.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-12.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::c",
-      "kavlan-11": "2001:660:4406:1a0:602:0::c",
-      "kavlan-12": "2001:660:4406:2a0:602:0::c",
-      "kavlan-13": "2001:660:4406:4a0:602:0::c",
-      "kavlan-14": "2001:660:4406:5a0:602:0::c",
-      "kavlan-16": "2001:660:4406:7a0:602:0::c",
-      "kavlan-18": "2001:660:4406:8a0:602:0::c",
-      "kavlan-2": "2001:660:4406:681:2:0::c",
-      "kavlan-20": "2001:660:4406:3a0:602:0::c",
-      "kavlan-21": "2001:660:4406:6a0:602:0::c",
-      "kavlan-3": "2001:660:4406:682:2:0::c",
-      "kavlan-4": "2001:660:4406:690:2:0::c",
-      "kavlan-5": "2001:660:4406:691:2:0::c",
-      "kavlan-6": "2001:660:4406:692:2:0::c",
-      "kavlan-7": "2001:660:4406:693:2:0::c",
-      "kavlan-8": "2001:660:4406:694:2:0::c",
-      "kavlan-9": "2001:660:4406:695:2:0::c"
+      "kavlan-1": "2001:660:4406:680:2::c",
+      "kavlan-11": "2001:660:4406:1a0:602::c",
+      "kavlan-12": "2001:660:4406:2a0:602::c",
+      "kavlan-13": "2001:660:4406:4a0:602::c",
+      "kavlan-14": "2001:660:4406:5a0:602::c",
+      "kavlan-16": "2001:660:4406:7a0:602::c",
+      "kavlan-18": "2001:660:4406:8a0:602::c",
+      "kavlan-2": "2001:660:4406:681:2::c",
+      "kavlan-20": "2001:660:4406:3a0:602::c",
+      "kavlan-21": "2001:660:4406:6a0:602::c",
+      "kavlan-3": "2001:660:4406:682:2::c",
+      "kavlan-4": "2001:660:4406:690:2::c",
+      "kavlan-5": "2001:660:4406:691:2::c",
+      "kavlan-6": "2001:660:4406:692:2::c",
+      "kavlan-7": "2001:660:4406:693:2::c",
+      "kavlan-8": "2001:660:4406:694:2::c",
+      "kavlan-9": "2001:660:4406:695:2::c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::c",
-      "kavlan-11": "2001:660:4406:1a0:602:1::c",
-      "kavlan-12": "2001:660:4406:2a0:602:1::c",
-      "kavlan-13": "2001:660:4406:4a0:602:1::c",
-      "kavlan-14": "2001:660:4406:5a0:602:1::c",
-      "kavlan-16": "2001:660:4406:7a0:602:1::c",
-      "kavlan-18": "2001:660:4406:8a0:602:1::c",
-      "kavlan-2": "2001:660:4406:681:2:1::c",
-      "kavlan-20": "2001:660:4406:3a0:602:1::c",
-      "kavlan-21": "2001:660:4406:6a0:602:1::c",
-      "kavlan-3": "2001:660:4406:682:2:1::c",
-      "kavlan-4": "2001:660:4406:690:2:1::c",
-      "kavlan-5": "2001:660:4406:691:2:1::c",
-      "kavlan-6": "2001:660:4406:692:2:1::c",
-      "kavlan-7": "2001:660:4406:693:2:1::c",
-      "kavlan-8": "2001:660:4406:694:2:1::c",
-      "kavlan-9": "2001:660:4406:695:2:1::c"
+      "kavlan-1": "2001:660:4406:680:2:1:0:c",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:c",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:c",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:c",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:c",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:c",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:c",
+      "kavlan-2": "2001:660:4406:681:2:1:0:c",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:c",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:c",
+      "kavlan-3": "2001:660:4406:682:2:1:0:c",
+      "kavlan-4": "2001:660:4406:690:2:1:0:c",
+      "kavlan-5": "2001:660:4406:691:2:1:0:c",
+      "kavlan-6": "2001:660:4406:692:2:1:0:c",
+      "kavlan-7": "2001:660:4406:693:2:1:0:c",
+      "kavlan-8": "2001:660:4406:694:2:1:0:c",
+      "kavlan-9": "2001:660:4406:695:2:1:0:c"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.12",
-      "ip6": "2001:660:4406:600:2:0::c",
+      "ip6": "2001:660:4406:600:2::c",
       "kavlan": true,
       "mac": "24:6e:96:6a:52:b8",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.12",
-      "ip6": "2001:660:4406:600:2:1::c",
+      "ip6": "2001:660:4406:600:2:1:0:c",
       "kavlan": true,
       "mac": "24:6e:96:6a:52:ba",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-13.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-13.json
index 4a899ecfbd6d57435664ae14b400739ef5775a7c..e19673c974d741fd490b27bb4827b7f5ffd8ef39 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-13.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-13.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::d",
-      "kavlan-11": "2001:660:4406:1a0:602:0::d",
-      "kavlan-12": "2001:660:4406:2a0:602:0::d",
-      "kavlan-13": "2001:660:4406:4a0:602:0::d",
-      "kavlan-14": "2001:660:4406:5a0:602:0::d",
-      "kavlan-16": "2001:660:4406:7a0:602:0::d",
-      "kavlan-18": "2001:660:4406:8a0:602:0::d",
-      "kavlan-2": "2001:660:4406:681:2:0::d",
-      "kavlan-20": "2001:660:4406:3a0:602:0::d",
-      "kavlan-21": "2001:660:4406:6a0:602:0::d",
-      "kavlan-3": "2001:660:4406:682:2:0::d",
-      "kavlan-4": "2001:660:4406:690:2:0::d",
-      "kavlan-5": "2001:660:4406:691:2:0::d",
-      "kavlan-6": "2001:660:4406:692:2:0::d",
-      "kavlan-7": "2001:660:4406:693:2:0::d",
-      "kavlan-8": "2001:660:4406:694:2:0::d",
-      "kavlan-9": "2001:660:4406:695:2:0::d"
+      "kavlan-1": "2001:660:4406:680:2::d",
+      "kavlan-11": "2001:660:4406:1a0:602::d",
+      "kavlan-12": "2001:660:4406:2a0:602::d",
+      "kavlan-13": "2001:660:4406:4a0:602::d",
+      "kavlan-14": "2001:660:4406:5a0:602::d",
+      "kavlan-16": "2001:660:4406:7a0:602::d",
+      "kavlan-18": "2001:660:4406:8a0:602::d",
+      "kavlan-2": "2001:660:4406:681:2::d",
+      "kavlan-20": "2001:660:4406:3a0:602::d",
+      "kavlan-21": "2001:660:4406:6a0:602::d",
+      "kavlan-3": "2001:660:4406:682:2::d",
+      "kavlan-4": "2001:660:4406:690:2::d",
+      "kavlan-5": "2001:660:4406:691:2::d",
+      "kavlan-6": "2001:660:4406:692:2::d",
+      "kavlan-7": "2001:660:4406:693:2::d",
+      "kavlan-8": "2001:660:4406:694:2::d",
+      "kavlan-9": "2001:660:4406:695:2::d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::d",
-      "kavlan-11": "2001:660:4406:1a0:602:1::d",
-      "kavlan-12": "2001:660:4406:2a0:602:1::d",
-      "kavlan-13": "2001:660:4406:4a0:602:1::d",
-      "kavlan-14": "2001:660:4406:5a0:602:1::d",
-      "kavlan-16": "2001:660:4406:7a0:602:1::d",
-      "kavlan-18": "2001:660:4406:8a0:602:1::d",
-      "kavlan-2": "2001:660:4406:681:2:1::d",
-      "kavlan-20": "2001:660:4406:3a0:602:1::d",
-      "kavlan-21": "2001:660:4406:6a0:602:1::d",
-      "kavlan-3": "2001:660:4406:682:2:1::d",
-      "kavlan-4": "2001:660:4406:690:2:1::d",
-      "kavlan-5": "2001:660:4406:691:2:1::d",
-      "kavlan-6": "2001:660:4406:692:2:1::d",
-      "kavlan-7": "2001:660:4406:693:2:1::d",
-      "kavlan-8": "2001:660:4406:694:2:1::d",
-      "kavlan-9": "2001:660:4406:695:2:1::d"
+      "kavlan-1": "2001:660:4406:680:2:1:0:d",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:d",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:d",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:d",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:d",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:d",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:d",
+      "kavlan-2": "2001:660:4406:681:2:1:0:d",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:d",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:d",
+      "kavlan-3": "2001:660:4406:682:2:1:0:d",
+      "kavlan-4": "2001:660:4406:690:2:1:0:d",
+      "kavlan-5": "2001:660:4406:691:2:1:0:d",
+      "kavlan-6": "2001:660:4406:692:2:1:0:d",
+      "kavlan-7": "2001:660:4406:693:2:1:0:d",
+      "kavlan-8": "2001:660:4406:694:2:1:0:d",
+      "kavlan-9": "2001:660:4406:695:2:1:0:d"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.13",
-      "ip6": "2001:660:4406:600:2:0::d",
+      "ip6": "2001:660:4406:600:2::d",
       "kavlan": true,
       "mac": "24:6e:96:6a:49:78",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.13",
-      "ip6": "2001:660:4406:600:2:1::d",
+      "ip6": "2001:660:4406:600:2:1:0:d",
       "kavlan": true,
       "mac": "24:6e:96:6a:49:7a",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-14.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-14.json
index 28d7858148dfbd6655b5febd829ea1ced5c77494..7771c6756a5fde4ae2635e9ce6cb17cc98b18905 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-14.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-14.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::e",
-      "kavlan-11": "2001:660:4406:1a0:602:0::e",
-      "kavlan-12": "2001:660:4406:2a0:602:0::e",
-      "kavlan-13": "2001:660:4406:4a0:602:0::e",
-      "kavlan-14": "2001:660:4406:5a0:602:0::e",
-      "kavlan-16": "2001:660:4406:7a0:602:0::e",
-      "kavlan-18": "2001:660:4406:8a0:602:0::e",
-      "kavlan-2": "2001:660:4406:681:2:0::e",
-      "kavlan-20": "2001:660:4406:3a0:602:0::e",
-      "kavlan-21": "2001:660:4406:6a0:602:0::e",
-      "kavlan-3": "2001:660:4406:682:2:0::e",
-      "kavlan-4": "2001:660:4406:690:2:0::e",
-      "kavlan-5": "2001:660:4406:691:2:0::e",
-      "kavlan-6": "2001:660:4406:692:2:0::e",
-      "kavlan-7": "2001:660:4406:693:2:0::e",
-      "kavlan-8": "2001:660:4406:694:2:0::e",
-      "kavlan-9": "2001:660:4406:695:2:0::e"
+      "kavlan-1": "2001:660:4406:680:2::e",
+      "kavlan-11": "2001:660:4406:1a0:602::e",
+      "kavlan-12": "2001:660:4406:2a0:602::e",
+      "kavlan-13": "2001:660:4406:4a0:602::e",
+      "kavlan-14": "2001:660:4406:5a0:602::e",
+      "kavlan-16": "2001:660:4406:7a0:602::e",
+      "kavlan-18": "2001:660:4406:8a0:602::e",
+      "kavlan-2": "2001:660:4406:681:2::e",
+      "kavlan-20": "2001:660:4406:3a0:602::e",
+      "kavlan-21": "2001:660:4406:6a0:602::e",
+      "kavlan-3": "2001:660:4406:682:2::e",
+      "kavlan-4": "2001:660:4406:690:2::e",
+      "kavlan-5": "2001:660:4406:691:2::e",
+      "kavlan-6": "2001:660:4406:692:2::e",
+      "kavlan-7": "2001:660:4406:693:2::e",
+      "kavlan-8": "2001:660:4406:694:2::e",
+      "kavlan-9": "2001:660:4406:695:2::e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::e",
-      "kavlan-11": "2001:660:4406:1a0:602:1::e",
-      "kavlan-12": "2001:660:4406:2a0:602:1::e",
-      "kavlan-13": "2001:660:4406:4a0:602:1::e",
-      "kavlan-14": "2001:660:4406:5a0:602:1::e",
-      "kavlan-16": "2001:660:4406:7a0:602:1::e",
-      "kavlan-18": "2001:660:4406:8a0:602:1::e",
-      "kavlan-2": "2001:660:4406:681:2:1::e",
-      "kavlan-20": "2001:660:4406:3a0:602:1::e",
-      "kavlan-21": "2001:660:4406:6a0:602:1::e",
-      "kavlan-3": "2001:660:4406:682:2:1::e",
-      "kavlan-4": "2001:660:4406:690:2:1::e",
-      "kavlan-5": "2001:660:4406:691:2:1::e",
-      "kavlan-6": "2001:660:4406:692:2:1::e",
-      "kavlan-7": "2001:660:4406:693:2:1::e",
-      "kavlan-8": "2001:660:4406:694:2:1::e",
-      "kavlan-9": "2001:660:4406:695:2:1::e"
+      "kavlan-1": "2001:660:4406:680:2:1:0:e",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:e",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:e",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:e",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:e",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:e",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:e",
+      "kavlan-2": "2001:660:4406:681:2:1:0:e",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:e",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:e",
+      "kavlan-3": "2001:660:4406:682:2:1:0:e",
+      "kavlan-4": "2001:660:4406:690:2:1:0:e",
+      "kavlan-5": "2001:660:4406:691:2:1:0:e",
+      "kavlan-6": "2001:660:4406:692:2:1:0:e",
+      "kavlan-7": "2001:660:4406:693:2:1:0:e",
+      "kavlan-8": "2001:660:4406:694:2:1:0:e",
+      "kavlan-9": "2001:660:4406:695:2:1:0:e"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.14",
-      "ip6": "2001:660:4406:600:2:0::e",
+      "ip6": "2001:660:4406:600:2::e",
       "kavlan": true,
       "mac": "24:6e:96:6a:46:78",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.14",
-      "ip6": "2001:660:4406:600:2:1::e",
+      "ip6": "2001:660:4406:600:2:1:0:e",
       "kavlan": true,
       "mac": "24:6e:96:6a:46:7a",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-15.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-15.json
index 65369612a24be13e76ade036126b5d75a4b6fe8d..f74b5d19c1009ec3ecb03bc6fae5fc97206eec5a 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-15.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-15.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::f",
-      "kavlan-11": "2001:660:4406:1a0:602:0::f",
-      "kavlan-12": "2001:660:4406:2a0:602:0::f",
-      "kavlan-13": "2001:660:4406:4a0:602:0::f",
-      "kavlan-14": "2001:660:4406:5a0:602:0::f",
-      "kavlan-16": "2001:660:4406:7a0:602:0::f",
-      "kavlan-18": "2001:660:4406:8a0:602:0::f",
-      "kavlan-2": "2001:660:4406:681:2:0::f",
-      "kavlan-20": "2001:660:4406:3a0:602:0::f",
-      "kavlan-21": "2001:660:4406:6a0:602:0::f",
-      "kavlan-3": "2001:660:4406:682:2:0::f",
-      "kavlan-4": "2001:660:4406:690:2:0::f",
-      "kavlan-5": "2001:660:4406:691:2:0::f",
-      "kavlan-6": "2001:660:4406:692:2:0::f",
-      "kavlan-7": "2001:660:4406:693:2:0::f",
-      "kavlan-8": "2001:660:4406:694:2:0::f",
-      "kavlan-9": "2001:660:4406:695:2:0::f"
+      "kavlan-1": "2001:660:4406:680:2::f",
+      "kavlan-11": "2001:660:4406:1a0:602::f",
+      "kavlan-12": "2001:660:4406:2a0:602::f",
+      "kavlan-13": "2001:660:4406:4a0:602::f",
+      "kavlan-14": "2001:660:4406:5a0:602::f",
+      "kavlan-16": "2001:660:4406:7a0:602::f",
+      "kavlan-18": "2001:660:4406:8a0:602::f",
+      "kavlan-2": "2001:660:4406:681:2::f",
+      "kavlan-20": "2001:660:4406:3a0:602::f",
+      "kavlan-21": "2001:660:4406:6a0:602::f",
+      "kavlan-3": "2001:660:4406:682:2::f",
+      "kavlan-4": "2001:660:4406:690:2::f",
+      "kavlan-5": "2001:660:4406:691:2::f",
+      "kavlan-6": "2001:660:4406:692:2::f",
+      "kavlan-7": "2001:660:4406:693:2::f",
+      "kavlan-8": "2001:660:4406:694:2::f",
+      "kavlan-9": "2001:660:4406:695:2::f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::f",
-      "kavlan-11": "2001:660:4406:1a0:602:1::f",
-      "kavlan-12": "2001:660:4406:2a0:602:1::f",
-      "kavlan-13": "2001:660:4406:4a0:602:1::f",
-      "kavlan-14": "2001:660:4406:5a0:602:1::f",
-      "kavlan-16": "2001:660:4406:7a0:602:1::f",
-      "kavlan-18": "2001:660:4406:8a0:602:1::f",
-      "kavlan-2": "2001:660:4406:681:2:1::f",
-      "kavlan-20": "2001:660:4406:3a0:602:1::f",
-      "kavlan-21": "2001:660:4406:6a0:602:1::f",
-      "kavlan-3": "2001:660:4406:682:2:1::f",
-      "kavlan-4": "2001:660:4406:690:2:1::f",
-      "kavlan-5": "2001:660:4406:691:2:1::f",
-      "kavlan-6": "2001:660:4406:692:2:1::f",
-      "kavlan-7": "2001:660:4406:693:2:1::f",
-      "kavlan-8": "2001:660:4406:694:2:1::f",
-      "kavlan-9": "2001:660:4406:695:2:1::f"
+      "kavlan-1": "2001:660:4406:680:2:1:0:f",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:f",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:f",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:f",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:f",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:f",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:f",
+      "kavlan-2": "2001:660:4406:681:2:1:0:f",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:f",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:f",
+      "kavlan-3": "2001:660:4406:682:2:1:0:f",
+      "kavlan-4": "2001:660:4406:690:2:1:0:f",
+      "kavlan-5": "2001:660:4406:691:2:1:0:f",
+      "kavlan-6": "2001:660:4406:692:2:1:0:f",
+      "kavlan-7": "2001:660:4406:693:2:1:0:f",
+      "kavlan-8": "2001:660:4406:694:2:1:0:f",
+      "kavlan-9": "2001:660:4406:695:2:1:0:f"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.15",
-      "ip6": "2001:660:4406:600:2:0::f",
+      "ip6": "2001:660:4406:600:2::f",
       "kavlan": true,
       "mac": "24:6e:96:6a:46:50",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.15",
-      "ip6": "2001:660:4406:600:2:1::f",
+      "ip6": "2001:660:4406:600:2:1:0:f",
       "kavlan": true,
       "mac": "24:6e:96:6a:46:52",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-16.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-16.json
index 9646a068bebbfa055f684e9068e5a6b77648baaa..3452c9dd52c1e130e593bf04a9496799f31e98ef 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-16.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-16.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::10",
-      "kavlan-11": "2001:660:4406:1a0:602:0::10",
-      "kavlan-12": "2001:660:4406:2a0:602:0::10",
-      "kavlan-13": "2001:660:4406:4a0:602:0::10",
-      "kavlan-14": "2001:660:4406:5a0:602:0::10",
-      "kavlan-16": "2001:660:4406:7a0:602:0::10",
-      "kavlan-18": "2001:660:4406:8a0:602:0::10",
-      "kavlan-2": "2001:660:4406:681:2:0::10",
-      "kavlan-20": "2001:660:4406:3a0:602:0::10",
-      "kavlan-21": "2001:660:4406:6a0:602:0::10",
-      "kavlan-3": "2001:660:4406:682:2:0::10",
-      "kavlan-4": "2001:660:4406:690:2:0::10",
-      "kavlan-5": "2001:660:4406:691:2:0::10",
-      "kavlan-6": "2001:660:4406:692:2:0::10",
-      "kavlan-7": "2001:660:4406:693:2:0::10",
-      "kavlan-8": "2001:660:4406:694:2:0::10",
-      "kavlan-9": "2001:660:4406:695:2:0::10"
+      "kavlan-1": "2001:660:4406:680:2::10",
+      "kavlan-11": "2001:660:4406:1a0:602::10",
+      "kavlan-12": "2001:660:4406:2a0:602::10",
+      "kavlan-13": "2001:660:4406:4a0:602::10",
+      "kavlan-14": "2001:660:4406:5a0:602::10",
+      "kavlan-16": "2001:660:4406:7a0:602::10",
+      "kavlan-18": "2001:660:4406:8a0:602::10",
+      "kavlan-2": "2001:660:4406:681:2::10",
+      "kavlan-20": "2001:660:4406:3a0:602::10",
+      "kavlan-21": "2001:660:4406:6a0:602::10",
+      "kavlan-3": "2001:660:4406:682:2::10",
+      "kavlan-4": "2001:660:4406:690:2::10",
+      "kavlan-5": "2001:660:4406:691:2::10",
+      "kavlan-6": "2001:660:4406:692:2::10",
+      "kavlan-7": "2001:660:4406:693:2::10",
+      "kavlan-8": "2001:660:4406:694:2::10",
+      "kavlan-9": "2001:660:4406:695:2::10"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::10",
-      "kavlan-11": "2001:660:4406:1a0:602:1::10",
-      "kavlan-12": "2001:660:4406:2a0:602:1::10",
-      "kavlan-13": "2001:660:4406:4a0:602:1::10",
-      "kavlan-14": "2001:660:4406:5a0:602:1::10",
-      "kavlan-16": "2001:660:4406:7a0:602:1::10",
-      "kavlan-18": "2001:660:4406:8a0:602:1::10",
-      "kavlan-2": "2001:660:4406:681:2:1::10",
-      "kavlan-20": "2001:660:4406:3a0:602:1::10",
-      "kavlan-21": "2001:660:4406:6a0:602:1::10",
-      "kavlan-3": "2001:660:4406:682:2:1::10",
-      "kavlan-4": "2001:660:4406:690:2:1::10",
-      "kavlan-5": "2001:660:4406:691:2:1::10",
-      "kavlan-6": "2001:660:4406:692:2:1::10",
-      "kavlan-7": "2001:660:4406:693:2:1::10",
-      "kavlan-8": "2001:660:4406:694:2:1::10",
-      "kavlan-9": "2001:660:4406:695:2:1::10"
+      "kavlan-1": "2001:660:4406:680:2:1:0:10",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:10",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:10",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:10",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:10",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:10",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:10",
+      "kavlan-2": "2001:660:4406:681:2:1:0:10",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:10",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:10",
+      "kavlan-3": "2001:660:4406:682:2:1:0:10",
+      "kavlan-4": "2001:660:4406:690:2:1:0:10",
+      "kavlan-5": "2001:660:4406:691:2:1:0:10",
+      "kavlan-6": "2001:660:4406:692:2:1:0:10",
+      "kavlan-7": "2001:660:4406:693:2:1:0:10",
+      "kavlan-8": "2001:660:4406:694:2:1:0:10",
+      "kavlan-9": "2001:660:4406:695:2:1:0:10"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.16",
-      "ip6": "2001:660:4406:600:2:0::10",
+      "ip6": "2001:660:4406:600:2::10",
       "kavlan": true,
       "mac": "24:6e:96:6a:46:c0",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.16",
-      "ip6": "2001:660:4406:600:2:1::10",
+      "ip6": "2001:660:4406:600:2:1:0:10",
       "kavlan": true,
       "mac": "24:6e:96:6a:46:c2",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-17.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-17.json
index 3f7865d41ff035ab8365472431bf84959523534a..d6e86b8b890547a9510e6255b4b72adbac1c1779 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-17.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-17.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::11",
-      "kavlan-11": "2001:660:4406:1a0:602:0::11",
-      "kavlan-12": "2001:660:4406:2a0:602:0::11",
-      "kavlan-13": "2001:660:4406:4a0:602:0::11",
-      "kavlan-14": "2001:660:4406:5a0:602:0::11",
-      "kavlan-16": "2001:660:4406:7a0:602:0::11",
-      "kavlan-18": "2001:660:4406:8a0:602:0::11",
-      "kavlan-2": "2001:660:4406:681:2:0::11",
-      "kavlan-20": "2001:660:4406:3a0:602:0::11",
-      "kavlan-21": "2001:660:4406:6a0:602:0::11",
-      "kavlan-3": "2001:660:4406:682:2:0::11",
-      "kavlan-4": "2001:660:4406:690:2:0::11",
-      "kavlan-5": "2001:660:4406:691:2:0::11",
-      "kavlan-6": "2001:660:4406:692:2:0::11",
-      "kavlan-7": "2001:660:4406:693:2:0::11",
-      "kavlan-8": "2001:660:4406:694:2:0::11",
-      "kavlan-9": "2001:660:4406:695:2:0::11"
+      "kavlan-1": "2001:660:4406:680:2::11",
+      "kavlan-11": "2001:660:4406:1a0:602::11",
+      "kavlan-12": "2001:660:4406:2a0:602::11",
+      "kavlan-13": "2001:660:4406:4a0:602::11",
+      "kavlan-14": "2001:660:4406:5a0:602::11",
+      "kavlan-16": "2001:660:4406:7a0:602::11",
+      "kavlan-18": "2001:660:4406:8a0:602::11",
+      "kavlan-2": "2001:660:4406:681:2::11",
+      "kavlan-20": "2001:660:4406:3a0:602::11",
+      "kavlan-21": "2001:660:4406:6a0:602::11",
+      "kavlan-3": "2001:660:4406:682:2::11",
+      "kavlan-4": "2001:660:4406:690:2::11",
+      "kavlan-5": "2001:660:4406:691:2::11",
+      "kavlan-6": "2001:660:4406:692:2::11",
+      "kavlan-7": "2001:660:4406:693:2::11",
+      "kavlan-8": "2001:660:4406:694:2::11",
+      "kavlan-9": "2001:660:4406:695:2::11"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::11",
-      "kavlan-11": "2001:660:4406:1a0:602:1::11",
-      "kavlan-12": "2001:660:4406:2a0:602:1::11",
-      "kavlan-13": "2001:660:4406:4a0:602:1::11",
-      "kavlan-14": "2001:660:4406:5a0:602:1::11",
-      "kavlan-16": "2001:660:4406:7a0:602:1::11",
-      "kavlan-18": "2001:660:4406:8a0:602:1::11",
-      "kavlan-2": "2001:660:4406:681:2:1::11",
-      "kavlan-20": "2001:660:4406:3a0:602:1::11",
-      "kavlan-21": "2001:660:4406:6a0:602:1::11",
-      "kavlan-3": "2001:660:4406:682:2:1::11",
-      "kavlan-4": "2001:660:4406:690:2:1::11",
-      "kavlan-5": "2001:660:4406:691:2:1::11",
-      "kavlan-6": "2001:660:4406:692:2:1::11",
-      "kavlan-7": "2001:660:4406:693:2:1::11",
-      "kavlan-8": "2001:660:4406:694:2:1::11",
-      "kavlan-9": "2001:660:4406:695:2:1::11"
+      "kavlan-1": "2001:660:4406:680:2:1:0:11",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:11",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:11",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:11",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:11",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:11",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:11",
+      "kavlan-2": "2001:660:4406:681:2:1:0:11",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:11",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:11",
+      "kavlan-3": "2001:660:4406:682:2:1:0:11",
+      "kavlan-4": "2001:660:4406:690:2:1:0:11",
+      "kavlan-5": "2001:660:4406:691:2:1:0:11",
+      "kavlan-6": "2001:660:4406:692:2:1:0:11",
+      "kavlan-7": "2001:660:4406:693:2:1:0:11",
+      "kavlan-8": "2001:660:4406:694:2:1:0:11",
+      "kavlan-9": "2001:660:4406:695:2:1:0:11"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.17",
-      "ip6": "2001:660:4406:600:2:0::11",
+      "ip6": "2001:660:4406:600:2::11",
       "kavlan": true,
       "mac": "24:6e:96:6a:47:48",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.17",
-      "ip6": "2001:660:4406:600:2:1::11",
+      "ip6": "2001:660:4406:600:2:1:0:11",
       "kavlan": true,
       "mac": "24:6e:96:6a:47:4a",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-18.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-18.json
index 042cae790013b5af18ed3528327fa0a33cbc22b5..80aaa20b977b6fa1f1be08353800b56a7aed27f5 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-18.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-18.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::12",
-      "kavlan-11": "2001:660:4406:1a0:602:0::12",
-      "kavlan-12": "2001:660:4406:2a0:602:0::12",
-      "kavlan-13": "2001:660:4406:4a0:602:0::12",
-      "kavlan-14": "2001:660:4406:5a0:602:0::12",
-      "kavlan-16": "2001:660:4406:7a0:602:0::12",
-      "kavlan-18": "2001:660:4406:8a0:602:0::12",
-      "kavlan-2": "2001:660:4406:681:2:0::12",
-      "kavlan-20": "2001:660:4406:3a0:602:0::12",
-      "kavlan-21": "2001:660:4406:6a0:602:0::12",
-      "kavlan-3": "2001:660:4406:682:2:0::12",
-      "kavlan-4": "2001:660:4406:690:2:0::12",
-      "kavlan-5": "2001:660:4406:691:2:0::12",
-      "kavlan-6": "2001:660:4406:692:2:0::12",
-      "kavlan-7": "2001:660:4406:693:2:0::12",
-      "kavlan-8": "2001:660:4406:694:2:0::12",
-      "kavlan-9": "2001:660:4406:695:2:0::12"
+      "kavlan-1": "2001:660:4406:680:2::12",
+      "kavlan-11": "2001:660:4406:1a0:602::12",
+      "kavlan-12": "2001:660:4406:2a0:602::12",
+      "kavlan-13": "2001:660:4406:4a0:602::12",
+      "kavlan-14": "2001:660:4406:5a0:602::12",
+      "kavlan-16": "2001:660:4406:7a0:602::12",
+      "kavlan-18": "2001:660:4406:8a0:602::12",
+      "kavlan-2": "2001:660:4406:681:2::12",
+      "kavlan-20": "2001:660:4406:3a0:602::12",
+      "kavlan-21": "2001:660:4406:6a0:602::12",
+      "kavlan-3": "2001:660:4406:682:2::12",
+      "kavlan-4": "2001:660:4406:690:2::12",
+      "kavlan-5": "2001:660:4406:691:2::12",
+      "kavlan-6": "2001:660:4406:692:2::12",
+      "kavlan-7": "2001:660:4406:693:2::12",
+      "kavlan-8": "2001:660:4406:694:2::12",
+      "kavlan-9": "2001:660:4406:695:2::12"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::12",
-      "kavlan-11": "2001:660:4406:1a0:602:1::12",
-      "kavlan-12": "2001:660:4406:2a0:602:1::12",
-      "kavlan-13": "2001:660:4406:4a0:602:1::12",
-      "kavlan-14": "2001:660:4406:5a0:602:1::12",
-      "kavlan-16": "2001:660:4406:7a0:602:1::12",
-      "kavlan-18": "2001:660:4406:8a0:602:1::12",
-      "kavlan-2": "2001:660:4406:681:2:1::12",
-      "kavlan-20": "2001:660:4406:3a0:602:1::12",
-      "kavlan-21": "2001:660:4406:6a0:602:1::12",
-      "kavlan-3": "2001:660:4406:682:2:1::12",
-      "kavlan-4": "2001:660:4406:690:2:1::12",
-      "kavlan-5": "2001:660:4406:691:2:1::12",
-      "kavlan-6": "2001:660:4406:692:2:1::12",
-      "kavlan-7": "2001:660:4406:693:2:1::12",
-      "kavlan-8": "2001:660:4406:694:2:1::12",
-      "kavlan-9": "2001:660:4406:695:2:1::12"
+      "kavlan-1": "2001:660:4406:680:2:1:0:12",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:12",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:12",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:12",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:12",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:12",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:12",
+      "kavlan-2": "2001:660:4406:681:2:1:0:12",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:12",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:12",
+      "kavlan-3": "2001:660:4406:682:2:1:0:12",
+      "kavlan-4": "2001:660:4406:690:2:1:0:12",
+      "kavlan-5": "2001:660:4406:691:2:1:0:12",
+      "kavlan-6": "2001:660:4406:692:2:1:0:12",
+      "kavlan-7": "2001:660:4406:693:2:1:0:12",
+      "kavlan-8": "2001:660:4406:694:2:1:0:12",
+      "kavlan-9": "2001:660:4406:695:2:1:0:12"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.18",
-      "ip6": "2001:660:4406:600:2:0::12",
+      "ip6": "2001:660:4406:600:2::12",
       "kavlan": true,
       "mac": "24:6e:96:6a:5a:58",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.18",
-      "ip6": "2001:660:4406:600:2:1::12",
+      "ip6": "2001:660:4406:600:2:1:0:12",
       "kavlan": true,
       "mac": "24:6e:96:6a:5a:5a",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-19.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-19.json
index 5b94936dc05d917fe94ab5d958d103063b63a080..33e4f0678b0b076a902ac505807251c6effa19de 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-19.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-19.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::13",
-      "kavlan-11": "2001:660:4406:1a0:602:0::13",
-      "kavlan-12": "2001:660:4406:2a0:602:0::13",
-      "kavlan-13": "2001:660:4406:4a0:602:0::13",
-      "kavlan-14": "2001:660:4406:5a0:602:0::13",
-      "kavlan-16": "2001:660:4406:7a0:602:0::13",
-      "kavlan-18": "2001:660:4406:8a0:602:0::13",
-      "kavlan-2": "2001:660:4406:681:2:0::13",
-      "kavlan-20": "2001:660:4406:3a0:602:0::13",
-      "kavlan-21": "2001:660:4406:6a0:602:0::13",
-      "kavlan-3": "2001:660:4406:682:2:0::13",
-      "kavlan-4": "2001:660:4406:690:2:0::13",
-      "kavlan-5": "2001:660:4406:691:2:0::13",
-      "kavlan-6": "2001:660:4406:692:2:0::13",
-      "kavlan-7": "2001:660:4406:693:2:0::13",
-      "kavlan-8": "2001:660:4406:694:2:0::13",
-      "kavlan-9": "2001:660:4406:695:2:0::13"
+      "kavlan-1": "2001:660:4406:680:2::13",
+      "kavlan-11": "2001:660:4406:1a0:602::13",
+      "kavlan-12": "2001:660:4406:2a0:602::13",
+      "kavlan-13": "2001:660:4406:4a0:602::13",
+      "kavlan-14": "2001:660:4406:5a0:602::13",
+      "kavlan-16": "2001:660:4406:7a0:602::13",
+      "kavlan-18": "2001:660:4406:8a0:602::13",
+      "kavlan-2": "2001:660:4406:681:2::13",
+      "kavlan-20": "2001:660:4406:3a0:602::13",
+      "kavlan-21": "2001:660:4406:6a0:602::13",
+      "kavlan-3": "2001:660:4406:682:2::13",
+      "kavlan-4": "2001:660:4406:690:2::13",
+      "kavlan-5": "2001:660:4406:691:2::13",
+      "kavlan-6": "2001:660:4406:692:2::13",
+      "kavlan-7": "2001:660:4406:693:2::13",
+      "kavlan-8": "2001:660:4406:694:2::13",
+      "kavlan-9": "2001:660:4406:695:2::13"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::13",
-      "kavlan-11": "2001:660:4406:1a0:602:1::13",
-      "kavlan-12": "2001:660:4406:2a0:602:1::13",
-      "kavlan-13": "2001:660:4406:4a0:602:1::13",
-      "kavlan-14": "2001:660:4406:5a0:602:1::13",
-      "kavlan-16": "2001:660:4406:7a0:602:1::13",
-      "kavlan-18": "2001:660:4406:8a0:602:1::13",
-      "kavlan-2": "2001:660:4406:681:2:1::13",
-      "kavlan-20": "2001:660:4406:3a0:602:1::13",
-      "kavlan-21": "2001:660:4406:6a0:602:1::13",
-      "kavlan-3": "2001:660:4406:682:2:1::13",
-      "kavlan-4": "2001:660:4406:690:2:1::13",
-      "kavlan-5": "2001:660:4406:691:2:1::13",
-      "kavlan-6": "2001:660:4406:692:2:1::13",
-      "kavlan-7": "2001:660:4406:693:2:1::13",
-      "kavlan-8": "2001:660:4406:694:2:1::13",
-      "kavlan-9": "2001:660:4406:695:2:1::13"
+      "kavlan-1": "2001:660:4406:680:2:1:0:13",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:13",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:13",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:13",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:13",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:13",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:13",
+      "kavlan-2": "2001:660:4406:681:2:1:0:13",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:13",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:13",
+      "kavlan-3": "2001:660:4406:682:2:1:0:13",
+      "kavlan-4": "2001:660:4406:690:2:1:0:13",
+      "kavlan-5": "2001:660:4406:691:2:1:0:13",
+      "kavlan-6": "2001:660:4406:692:2:1:0:13",
+      "kavlan-7": "2001:660:4406:693:2:1:0:13",
+      "kavlan-8": "2001:660:4406:694:2:1:0:13",
+      "kavlan-9": "2001:660:4406:695:2:1:0:13"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.19",
-      "ip6": "2001:660:4406:600:2:0::13",
+      "ip6": "2001:660:4406:600:2::13",
       "kavlan": true,
       "mac": "24:6e:96:6a:59:60",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.19",
-      "ip6": "2001:660:4406:600:2:1::13",
+      "ip6": "2001:660:4406:600:2:1:0:13",
       "kavlan": true,
       "mac": "24:6e:96:6a:59:62",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-2.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-2.json
index e4825a5bd0e805569488072f75b6b8bb6aa01b9c..999312623d81a26bb3b1291a29322e83d38504a2 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-2.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-2.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::2",
-      "kavlan-11": "2001:660:4406:1a0:602:0::2",
-      "kavlan-12": "2001:660:4406:2a0:602:0::2",
-      "kavlan-13": "2001:660:4406:4a0:602:0::2",
-      "kavlan-14": "2001:660:4406:5a0:602:0::2",
-      "kavlan-16": "2001:660:4406:7a0:602:0::2",
-      "kavlan-18": "2001:660:4406:8a0:602:0::2",
-      "kavlan-2": "2001:660:4406:681:2:0::2",
-      "kavlan-20": "2001:660:4406:3a0:602:0::2",
-      "kavlan-21": "2001:660:4406:6a0:602:0::2",
-      "kavlan-3": "2001:660:4406:682:2:0::2",
-      "kavlan-4": "2001:660:4406:690:2:0::2",
-      "kavlan-5": "2001:660:4406:691:2:0::2",
-      "kavlan-6": "2001:660:4406:692:2:0::2",
-      "kavlan-7": "2001:660:4406:693:2:0::2",
-      "kavlan-8": "2001:660:4406:694:2:0::2",
-      "kavlan-9": "2001:660:4406:695:2:0::2"
+      "kavlan-1": "2001:660:4406:680:2::2",
+      "kavlan-11": "2001:660:4406:1a0:602::2",
+      "kavlan-12": "2001:660:4406:2a0:602::2",
+      "kavlan-13": "2001:660:4406:4a0:602::2",
+      "kavlan-14": "2001:660:4406:5a0:602::2",
+      "kavlan-16": "2001:660:4406:7a0:602::2",
+      "kavlan-18": "2001:660:4406:8a0:602::2",
+      "kavlan-2": "2001:660:4406:681:2::2",
+      "kavlan-20": "2001:660:4406:3a0:602::2",
+      "kavlan-21": "2001:660:4406:6a0:602::2",
+      "kavlan-3": "2001:660:4406:682:2::2",
+      "kavlan-4": "2001:660:4406:690:2::2",
+      "kavlan-5": "2001:660:4406:691:2::2",
+      "kavlan-6": "2001:660:4406:692:2::2",
+      "kavlan-7": "2001:660:4406:693:2::2",
+      "kavlan-8": "2001:660:4406:694:2::2",
+      "kavlan-9": "2001:660:4406:695:2::2"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::2",
-      "kavlan-11": "2001:660:4406:1a0:602:1::2",
-      "kavlan-12": "2001:660:4406:2a0:602:1::2",
-      "kavlan-13": "2001:660:4406:4a0:602:1::2",
-      "kavlan-14": "2001:660:4406:5a0:602:1::2",
-      "kavlan-16": "2001:660:4406:7a0:602:1::2",
-      "kavlan-18": "2001:660:4406:8a0:602:1::2",
-      "kavlan-2": "2001:660:4406:681:2:1::2",
-      "kavlan-20": "2001:660:4406:3a0:602:1::2",
-      "kavlan-21": "2001:660:4406:6a0:602:1::2",
-      "kavlan-3": "2001:660:4406:682:2:1::2",
-      "kavlan-4": "2001:660:4406:690:2:1::2",
-      "kavlan-5": "2001:660:4406:691:2:1::2",
-      "kavlan-6": "2001:660:4406:692:2:1::2",
-      "kavlan-7": "2001:660:4406:693:2:1::2",
-      "kavlan-8": "2001:660:4406:694:2:1::2",
-      "kavlan-9": "2001:660:4406:695:2:1::2"
+      "kavlan-1": "2001:660:4406:680:2:1:0:2",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:2",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:2",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:2",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:2",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:2",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:2",
+      "kavlan-2": "2001:660:4406:681:2:1:0:2",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:2",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:2",
+      "kavlan-3": "2001:660:4406:682:2:1:0:2",
+      "kavlan-4": "2001:660:4406:690:2:1:0:2",
+      "kavlan-5": "2001:660:4406:691:2:1:0:2",
+      "kavlan-6": "2001:660:4406:692:2:1:0:2",
+      "kavlan-7": "2001:660:4406:693:2:1:0:2",
+      "kavlan-8": "2001:660:4406:694:2:1:0:2",
+      "kavlan-9": "2001:660:4406:695:2:1:0:2"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.2",
-      "ip6": "2001:660:4406:600:2:0::2",
+      "ip6": "2001:660:4406:600:2::2",
       "kavlan": true,
       "mac": "24:6e:96:6a:d0:48",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.2",
-      "ip6": "2001:660:4406:600:2:1::2",
+      "ip6": "2001:660:4406:600:2:1:0:2",
       "kavlan": true,
       "mac": "24:6e:96:6a:d0:4a",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-20.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-20.json
index c0fee4cd6811a13ab41602740ef2f089ec4345dc..ae7e13f2bf4e3334797243dc4de4f97cf8e7bb98 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-20.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-20.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::14",
-      "kavlan-11": "2001:660:4406:1a0:602:0::14",
-      "kavlan-12": "2001:660:4406:2a0:602:0::14",
-      "kavlan-13": "2001:660:4406:4a0:602:0::14",
-      "kavlan-14": "2001:660:4406:5a0:602:0::14",
-      "kavlan-16": "2001:660:4406:7a0:602:0::14",
-      "kavlan-18": "2001:660:4406:8a0:602:0::14",
-      "kavlan-2": "2001:660:4406:681:2:0::14",
-      "kavlan-20": "2001:660:4406:3a0:602:0::14",
-      "kavlan-21": "2001:660:4406:6a0:602:0::14",
-      "kavlan-3": "2001:660:4406:682:2:0::14",
-      "kavlan-4": "2001:660:4406:690:2:0::14",
-      "kavlan-5": "2001:660:4406:691:2:0::14",
-      "kavlan-6": "2001:660:4406:692:2:0::14",
-      "kavlan-7": "2001:660:4406:693:2:0::14",
-      "kavlan-8": "2001:660:4406:694:2:0::14",
-      "kavlan-9": "2001:660:4406:695:2:0::14"
+      "kavlan-1": "2001:660:4406:680:2::14",
+      "kavlan-11": "2001:660:4406:1a0:602::14",
+      "kavlan-12": "2001:660:4406:2a0:602::14",
+      "kavlan-13": "2001:660:4406:4a0:602::14",
+      "kavlan-14": "2001:660:4406:5a0:602::14",
+      "kavlan-16": "2001:660:4406:7a0:602::14",
+      "kavlan-18": "2001:660:4406:8a0:602::14",
+      "kavlan-2": "2001:660:4406:681:2::14",
+      "kavlan-20": "2001:660:4406:3a0:602::14",
+      "kavlan-21": "2001:660:4406:6a0:602::14",
+      "kavlan-3": "2001:660:4406:682:2::14",
+      "kavlan-4": "2001:660:4406:690:2::14",
+      "kavlan-5": "2001:660:4406:691:2::14",
+      "kavlan-6": "2001:660:4406:692:2::14",
+      "kavlan-7": "2001:660:4406:693:2::14",
+      "kavlan-8": "2001:660:4406:694:2::14",
+      "kavlan-9": "2001:660:4406:695:2::14"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::14",
-      "kavlan-11": "2001:660:4406:1a0:602:1::14",
-      "kavlan-12": "2001:660:4406:2a0:602:1::14",
-      "kavlan-13": "2001:660:4406:4a0:602:1::14",
-      "kavlan-14": "2001:660:4406:5a0:602:1::14",
-      "kavlan-16": "2001:660:4406:7a0:602:1::14",
-      "kavlan-18": "2001:660:4406:8a0:602:1::14",
-      "kavlan-2": "2001:660:4406:681:2:1::14",
-      "kavlan-20": "2001:660:4406:3a0:602:1::14",
-      "kavlan-21": "2001:660:4406:6a0:602:1::14",
-      "kavlan-3": "2001:660:4406:682:2:1::14",
-      "kavlan-4": "2001:660:4406:690:2:1::14",
-      "kavlan-5": "2001:660:4406:691:2:1::14",
-      "kavlan-6": "2001:660:4406:692:2:1::14",
-      "kavlan-7": "2001:660:4406:693:2:1::14",
-      "kavlan-8": "2001:660:4406:694:2:1::14",
-      "kavlan-9": "2001:660:4406:695:2:1::14"
+      "kavlan-1": "2001:660:4406:680:2:1:0:14",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:14",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:14",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:14",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:14",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:14",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:14",
+      "kavlan-2": "2001:660:4406:681:2:1:0:14",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:14",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:14",
+      "kavlan-3": "2001:660:4406:682:2:1:0:14",
+      "kavlan-4": "2001:660:4406:690:2:1:0:14",
+      "kavlan-5": "2001:660:4406:691:2:1:0:14",
+      "kavlan-6": "2001:660:4406:692:2:1:0:14",
+      "kavlan-7": "2001:660:4406:693:2:1:0:14",
+      "kavlan-8": "2001:660:4406:694:2:1:0:14",
+      "kavlan-9": "2001:660:4406:695:2:1:0:14"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.20",
-      "ip6": "2001:660:4406:600:2:0::14",
+      "ip6": "2001:660:4406:600:2::14",
       "kavlan": true,
       "mac": "24:6e:96:6a:50:10",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.20",
-      "ip6": "2001:660:4406:600:2:1::14",
+      "ip6": "2001:660:4406:600:2:1:0:14",
       "kavlan": true,
       "mac": "24:6e:96:6a:50:12",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-21.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-21.json
index bc73b9c5fbb58a80b086a1ed19f08bc2fbc73907..e39b984004c869f4b5ad071c4458a3251a4100bf 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-21.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-21.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::15",
-      "kavlan-11": "2001:660:4406:1a0:602:0::15",
-      "kavlan-12": "2001:660:4406:2a0:602:0::15",
-      "kavlan-13": "2001:660:4406:4a0:602:0::15",
-      "kavlan-14": "2001:660:4406:5a0:602:0::15",
-      "kavlan-16": "2001:660:4406:7a0:602:0::15",
-      "kavlan-18": "2001:660:4406:8a0:602:0::15",
-      "kavlan-2": "2001:660:4406:681:2:0::15",
-      "kavlan-20": "2001:660:4406:3a0:602:0::15",
-      "kavlan-21": "2001:660:4406:6a0:602:0::15",
-      "kavlan-3": "2001:660:4406:682:2:0::15",
-      "kavlan-4": "2001:660:4406:690:2:0::15",
-      "kavlan-5": "2001:660:4406:691:2:0::15",
-      "kavlan-6": "2001:660:4406:692:2:0::15",
-      "kavlan-7": "2001:660:4406:693:2:0::15",
-      "kavlan-8": "2001:660:4406:694:2:0::15",
-      "kavlan-9": "2001:660:4406:695:2:0::15"
+      "kavlan-1": "2001:660:4406:680:2::15",
+      "kavlan-11": "2001:660:4406:1a0:602::15",
+      "kavlan-12": "2001:660:4406:2a0:602::15",
+      "kavlan-13": "2001:660:4406:4a0:602::15",
+      "kavlan-14": "2001:660:4406:5a0:602::15",
+      "kavlan-16": "2001:660:4406:7a0:602::15",
+      "kavlan-18": "2001:660:4406:8a0:602::15",
+      "kavlan-2": "2001:660:4406:681:2::15",
+      "kavlan-20": "2001:660:4406:3a0:602::15",
+      "kavlan-21": "2001:660:4406:6a0:602::15",
+      "kavlan-3": "2001:660:4406:682:2::15",
+      "kavlan-4": "2001:660:4406:690:2::15",
+      "kavlan-5": "2001:660:4406:691:2::15",
+      "kavlan-6": "2001:660:4406:692:2::15",
+      "kavlan-7": "2001:660:4406:693:2::15",
+      "kavlan-8": "2001:660:4406:694:2::15",
+      "kavlan-9": "2001:660:4406:695:2::15"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::15",
-      "kavlan-11": "2001:660:4406:1a0:602:1::15",
-      "kavlan-12": "2001:660:4406:2a0:602:1::15",
-      "kavlan-13": "2001:660:4406:4a0:602:1::15",
-      "kavlan-14": "2001:660:4406:5a0:602:1::15",
-      "kavlan-16": "2001:660:4406:7a0:602:1::15",
-      "kavlan-18": "2001:660:4406:8a0:602:1::15",
-      "kavlan-2": "2001:660:4406:681:2:1::15",
-      "kavlan-20": "2001:660:4406:3a0:602:1::15",
-      "kavlan-21": "2001:660:4406:6a0:602:1::15",
-      "kavlan-3": "2001:660:4406:682:2:1::15",
-      "kavlan-4": "2001:660:4406:690:2:1::15",
-      "kavlan-5": "2001:660:4406:691:2:1::15",
-      "kavlan-6": "2001:660:4406:692:2:1::15",
-      "kavlan-7": "2001:660:4406:693:2:1::15",
-      "kavlan-8": "2001:660:4406:694:2:1::15",
-      "kavlan-9": "2001:660:4406:695:2:1::15"
+      "kavlan-1": "2001:660:4406:680:2:1:0:15",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:15",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:15",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:15",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:15",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:15",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:15",
+      "kavlan-2": "2001:660:4406:681:2:1:0:15",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:15",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:15",
+      "kavlan-3": "2001:660:4406:682:2:1:0:15",
+      "kavlan-4": "2001:660:4406:690:2:1:0:15",
+      "kavlan-5": "2001:660:4406:691:2:1:0:15",
+      "kavlan-6": "2001:660:4406:692:2:1:0:15",
+      "kavlan-7": "2001:660:4406:693:2:1:0:15",
+      "kavlan-8": "2001:660:4406:694:2:1:0:15",
+      "kavlan-9": "2001:660:4406:695:2:1:0:15"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.21",
-      "ip6": "2001:660:4406:600:2:0::15",
+      "ip6": "2001:660:4406:600:2::15",
       "kavlan": true,
       "mac": "24:6e:96:6a:c9:e0",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.21",
-      "ip6": "2001:660:4406:600:2:1::15",
+      "ip6": "2001:660:4406:600:2:1:0:15",
       "kavlan": true,
       "mac": "24:6e:96:6a:c9:e2",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-22.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-22.json
index 876624d77bd97aaeb8900d7732e4c64232c5834f..7dab0cc04935f85aa82f29c921592e71a0602645 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-22.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-22.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::16",
-      "kavlan-11": "2001:660:4406:1a0:602:0::16",
-      "kavlan-12": "2001:660:4406:2a0:602:0::16",
-      "kavlan-13": "2001:660:4406:4a0:602:0::16",
-      "kavlan-14": "2001:660:4406:5a0:602:0::16",
-      "kavlan-16": "2001:660:4406:7a0:602:0::16",
-      "kavlan-18": "2001:660:4406:8a0:602:0::16",
-      "kavlan-2": "2001:660:4406:681:2:0::16",
-      "kavlan-20": "2001:660:4406:3a0:602:0::16",
-      "kavlan-21": "2001:660:4406:6a0:602:0::16",
-      "kavlan-3": "2001:660:4406:682:2:0::16",
-      "kavlan-4": "2001:660:4406:690:2:0::16",
-      "kavlan-5": "2001:660:4406:691:2:0::16",
-      "kavlan-6": "2001:660:4406:692:2:0::16",
-      "kavlan-7": "2001:660:4406:693:2:0::16",
-      "kavlan-8": "2001:660:4406:694:2:0::16",
-      "kavlan-9": "2001:660:4406:695:2:0::16"
+      "kavlan-1": "2001:660:4406:680:2::16",
+      "kavlan-11": "2001:660:4406:1a0:602::16",
+      "kavlan-12": "2001:660:4406:2a0:602::16",
+      "kavlan-13": "2001:660:4406:4a0:602::16",
+      "kavlan-14": "2001:660:4406:5a0:602::16",
+      "kavlan-16": "2001:660:4406:7a0:602::16",
+      "kavlan-18": "2001:660:4406:8a0:602::16",
+      "kavlan-2": "2001:660:4406:681:2::16",
+      "kavlan-20": "2001:660:4406:3a0:602::16",
+      "kavlan-21": "2001:660:4406:6a0:602::16",
+      "kavlan-3": "2001:660:4406:682:2::16",
+      "kavlan-4": "2001:660:4406:690:2::16",
+      "kavlan-5": "2001:660:4406:691:2::16",
+      "kavlan-6": "2001:660:4406:692:2::16",
+      "kavlan-7": "2001:660:4406:693:2::16",
+      "kavlan-8": "2001:660:4406:694:2::16",
+      "kavlan-9": "2001:660:4406:695:2::16"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::16",
-      "kavlan-11": "2001:660:4406:1a0:602:1::16",
-      "kavlan-12": "2001:660:4406:2a0:602:1::16",
-      "kavlan-13": "2001:660:4406:4a0:602:1::16",
-      "kavlan-14": "2001:660:4406:5a0:602:1::16",
-      "kavlan-16": "2001:660:4406:7a0:602:1::16",
-      "kavlan-18": "2001:660:4406:8a0:602:1::16",
-      "kavlan-2": "2001:660:4406:681:2:1::16",
-      "kavlan-20": "2001:660:4406:3a0:602:1::16",
-      "kavlan-21": "2001:660:4406:6a0:602:1::16",
-      "kavlan-3": "2001:660:4406:682:2:1::16",
-      "kavlan-4": "2001:660:4406:690:2:1::16",
-      "kavlan-5": "2001:660:4406:691:2:1::16",
-      "kavlan-6": "2001:660:4406:692:2:1::16",
-      "kavlan-7": "2001:660:4406:693:2:1::16",
-      "kavlan-8": "2001:660:4406:694:2:1::16",
-      "kavlan-9": "2001:660:4406:695:2:1::16"
+      "kavlan-1": "2001:660:4406:680:2:1:0:16",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:16",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:16",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:16",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:16",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:16",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:16",
+      "kavlan-2": "2001:660:4406:681:2:1:0:16",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:16",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:16",
+      "kavlan-3": "2001:660:4406:682:2:1:0:16",
+      "kavlan-4": "2001:660:4406:690:2:1:0:16",
+      "kavlan-5": "2001:660:4406:691:2:1:0:16",
+      "kavlan-6": "2001:660:4406:692:2:1:0:16",
+      "kavlan-7": "2001:660:4406:693:2:1:0:16",
+      "kavlan-8": "2001:660:4406:694:2:1:0:16",
+      "kavlan-9": "2001:660:4406:695:2:1:0:16"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.22",
-      "ip6": "2001:660:4406:600:2:0::16",
+      "ip6": "2001:660:4406:600:2::16",
       "kavlan": true,
       "mac": "24:6e:96:6a:d3:20",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.22",
-      "ip6": "2001:660:4406:600:2:1::16",
+      "ip6": "2001:660:4406:600:2:1:0:16",
       "kavlan": true,
       "mac": "24:6e:96:6a:d3:22",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-23.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-23.json
index 4f934e62b2948d57a28db1989076687ddcde0c91..4370280916e03b4723a00b834b6025f4d834df5d 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-23.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-23.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::17",
-      "kavlan-11": "2001:660:4406:1a0:602:0::17",
-      "kavlan-12": "2001:660:4406:2a0:602:0::17",
-      "kavlan-13": "2001:660:4406:4a0:602:0::17",
-      "kavlan-14": "2001:660:4406:5a0:602:0::17",
-      "kavlan-16": "2001:660:4406:7a0:602:0::17",
-      "kavlan-18": "2001:660:4406:8a0:602:0::17",
-      "kavlan-2": "2001:660:4406:681:2:0::17",
-      "kavlan-20": "2001:660:4406:3a0:602:0::17",
-      "kavlan-21": "2001:660:4406:6a0:602:0::17",
-      "kavlan-3": "2001:660:4406:682:2:0::17",
-      "kavlan-4": "2001:660:4406:690:2:0::17",
-      "kavlan-5": "2001:660:4406:691:2:0::17",
-      "kavlan-6": "2001:660:4406:692:2:0::17",
-      "kavlan-7": "2001:660:4406:693:2:0::17",
-      "kavlan-8": "2001:660:4406:694:2:0::17",
-      "kavlan-9": "2001:660:4406:695:2:0::17"
+      "kavlan-1": "2001:660:4406:680:2::17",
+      "kavlan-11": "2001:660:4406:1a0:602::17",
+      "kavlan-12": "2001:660:4406:2a0:602::17",
+      "kavlan-13": "2001:660:4406:4a0:602::17",
+      "kavlan-14": "2001:660:4406:5a0:602::17",
+      "kavlan-16": "2001:660:4406:7a0:602::17",
+      "kavlan-18": "2001:660:4406:8a0:602::17",
+      "kavlan-2": "2001:660:4406:681:2::17",
+      "kavlan-20": "2001:660:4406:3a0:602::17",
+      "kavlan-21": "2001:660:4406:6a0:602::17",
+      "kavlan-3": "2001:660:4406:682:2::17",
+      "kavlan-4": "2001:660:4406:690:2::17",
+      "kavlan-5": "2001:660:4406:691:2::17",
+      "kavlan-6": "2001:660:4406:692:2::17",
+      "kavlan-7": "2001:660:4406:693:2::17",
+      "kavlan-8": "2001:660:4406:694:2::17",
+      "kavlan-9": "2001:660:4406:695:2::17"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::17",
-      "kavlan-11": "2001:660:4406:1a0:602:1::17",
-      "kavlan-12": "2001:660:4406:2a0:602:1::17",
-      "kavlan-13": "2001:660:4406:4a0:602:1::17",
-      "kavlan-14": "2001:660:4406:5a0:602:1::17",
-      "kavlan-16": "2001:660:4406:7a0:602:1::17",
-      "kavlan-18": "2001:660:4406:8a0:602:1::17",
-      "kavlan-2": "2001:660:4406:681:2:1::17",
-      "kavlan-20": "2001:660:4406:3a0:602:1::17",
-      "kavlan-21": "2001:660:4406:6a0:602:1::17",
-      "kavlan-3": "2001:660:4406:682:2:1::17",
-      "kavlan-4": "2001:660:4406:690:2:1::17",
-      "kavlan-5": "2001:660:4406:691:2:1::17",
-      "kavlan-6": "2001:660:4406:692:2:1::17",
-      "kavlan-7": "2001:660:4406:693:2:1::17",
-      "kavlan-8": "2001:660:4406:694:2:1::17",
-      "kavlan-9": "2001:660:4406:695:2:1::17"
+      "kavlan-1": "2001:660:4406:680:2:1:0:17",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:17",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:17",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:17",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:17",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:17",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:17",
+      "kavlan-2": "2001:660:4406:681:2:1:0:17",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:17",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:17",
+      "kavlan-3": "2001:660:4406:682:2:1:0:17",
+      "kavlan-4": "2001:660:4406:690:2:1:0:17",
+      "kavlan-5": "2001:660:4406:691:2:1:0:17",
+      "kavlan-6": "2001:660:4406:692:2:1:0:17",
+      "kavlan-7": "2001:660:4406:693:2:1:0:17",
+      "kavlan-8": "2001:660:4406:694:2:1:0:17",
+      "kavlan-9": "2001:660:4406:695:2:1:0:17"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.23",
-      "ip6": "2001:660:4406:600:2:0::17",
+      "ip6": "2001:660:4406:600:2::17",
       "kavlan": true,
       "mac": "24:6e:96:6a:4e:b8",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.23",
-      "ip6": "2001:660:4406:600:2:1::17",
+      "ip6": "2001:660:4406:600:2:1:0:17",
       "kavlan": true,
       "mac": "24:6e:96:6a:4e:ba",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-24.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-24.json
index 8072a742184a778c3133d355455589a5eb15644b..f94908cab9df719b8193615d737a7ff09e1917f7 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-24.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-24.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::18",
-      "kavlan-11": "2001:660:4406:1a0:602:0::18",
-      "kavlan-12": "2001:660:4406:2a0:602:0::18",
-      "kavlan-13": "2001:660:4406:4a0:602:0::18",
-      "kavlan-14": "2001:660:4406:5a0:602:0::18",
-      "kavlan-16": "2001:660:4406:7a0:602:0::18",
-      "kavlan-18": "2001:660:4406:8a0:602:0::18",
-      "kavlan-2": "2001:660:4406:681:2:0::18",
-      "kavlan-20": "2001:660:4406:3a0:602:0::18",
-      "kavlan-21": "2001:660:4406:6a0:602:0::18",
-      "kavlan-3": "2001:660:4406:682:2:0::18",
-      "kavlan-4": "2001:660:4406:690:2:0::18",
-      "kavlan-5": "2001:660:4406:691:2:0::18",
-      "kavlan-6": "2001:660:4406:692:2:0::18",
-      "kavlan-7": "2001:660:4406:693:2:0::18",
-      "kavlan-8": "2001:660:4406:694:2:0::18",
-      "kavlan-9": "2001:660:4406:695:2:0::18"
+      "kavlan-1": "2001:660:4406:680:2::18",
+      "kavlan-11": "2001:660:4406:1a0:602::18",
+      "kavlan-12": "2001:660:4406:2a0:602::18",
+      "kavlan-13": "2001:660:4406:4a0:602::18",
+      "kavlan-14": "2001:660:4406:5a0:602::18",
+      "kavlan-16": "2001:660:4406:7a0:602::18",
+      "kavlan-18": "2001:660:4406:8a0:602::18",
+      "kavlan-2": "2001:660:4406:681:2::18",
+      "kavlan-20": "2001:660:4406:3a0:602::18",
+      "kavlan-21": "2001:660:4406:6a0:602::18",
+      "kavlan-3": "2001:660:4406:682:2::18",
+      "kavlan-4": "2001:660:4406:690:2::18",
+      "kavlan-5": "2001:660:4406:691:2::18",
+      "kavlan-6": "2001:660:4406:692:2::18",
+      "kavlan-7": "2001:660:4406:693:2::18",
+      "kavlan-8": "2001:660:4406:694:2::18",
+      "kavlan-9": "2001:660:4406:695:2::18"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::18",
-      "kavlan-11": "2001:660:4406:1a0:602:1::18",
-      "kavlan-12": "2001:660:4406:2a0:602:1::18",
-      "kavlan-13": "2001:660:4406:4a0:602:1::18",
-      "kavlan-14": "2001:660:4406:5a0:602:1::18",
-      "kavlan-16": "2001:660:4406:7a0:602:1::18",
-      "kavlan-18": "2001:660:4406:8a0:602:1::18",
-      "kavlan-2": "2001:660:4406:681:2:1::18",
-      "kavlan-20": "2001:660:4406:3a0:602:1::18",
-      "kavlan-21": "2001:660:4406:6a0:602:1::18",
-      "kavlan-3": "2001:660:4406:682:2:1::18",
-      "kavlan-4": "2001:660:4406:690:2:1::18",
-      "kavlan-5": "2001:660:4406:691:2:1::18",
-      "kavlan-6": "2001:660:4406:692:2:1::18",
-      "kavlan-7": "2001:660:4406:693:2:1::18",
-      "kavlan-8": "2001:660:4406:694:2:1::18",
-      "kavlan-9": "2001:660:4406:695:2:1::18"
+      "kavlan-1": "2001:660:4406:680:2:1:0:18",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:18",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:18",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:18",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:18",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:18",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:18",
+      "kavlan-2": "2001:660:4406:681:2:1:0:18",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:18",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:18",
+      "kavlan-3": "2001:660:4406:682:2:1:0:18",
+      "kavlan-4": "2001:660:4406:690:2:1:0:18",
+      "kavlan-5": "2001:660:4406:691:2:1:0:18",
+      "kavlan-6": "2001:660:4406:692:2:1:0:18",
+      "kavlan-7": "2001:660:4406:693:2:1:0:18",
+      "kavlan-8": "2001:660:4406:694:2:1:0:18",
+      "kavlan-9": "2001:660:4406:695:2:1:0:18"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.24",
-      "ip6": "2001:660:4406:600:2:0::18",
+      "ip6": "2001:660:4406:600:2::18",
       "kavlan": true,
       "mac": "24:6e:96:6a:cf:e8",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.24",
-      "ip6": "2001:660:4406:600:2:1::18",
+      "ip6": "2001:660:4406:600:2:1:0:18",
       "kavlan": true,
       "mac": "24:6e:96:6a:cf:ea",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-25.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-25.json
index 7d1e3a4651b9c8b71c9cf697da16a8bbc244b184..732383d4922ca44a33a5bfcba5b2b379a0e9bb52 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-25.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-25.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::19",
-      "kavlan-11": "2001:660:4406:1a0:602:0::19",
-      "kavlan-12": "2001:660:4406:2a0:602:0::19",
-      "kavlan-13": "2001:660:4406:4a0:602:0::19",
-      "kavlan-14": "2001:660:4406:5a0:602:0::19",
-      "kavlan-16": "2001:660:4406:7a0:602:0::19",
-      "kavlan-18": "2001:660:4406:8a0:602:0::19",
-      "kavlan-2": "2001:660:4406:681:2:0::19",
-      "kavlan-20": "2001:660:4406:3a0:602:0::19",
-      "kavlan-21": "2001:660:4406:6a0:602:0::19",
-      "kavlan-3": "2001:660:4406:682:2:0::19",
-      "kavlan-4": "2001:660:4406:690:2:0::19",
-      "kavlan-5": "2001:660:4406:691:2:0::19",
-      "kavlan-6": "2001:660:4406:692:2:0::19",
-      "kavlan-7": "2001:660:4406:693:2:0::19",
-      "kavlan-8": "2001:660:4406:694:2:0::19",
-      "kavlan-9": "2001:660:4406:695:2:0::19"
+      "kavlan-1": "2001:660:4406:680:2::19",
+      "kavlan-11": "2001:660:4406:1a0:602::19",
+      "kavlan-12": "2001:660:4406:2a0:602::19",
+      "kavlan-13": "2001:660:4406:4a0:602::19",
+      "kavlan-14": "2001:660:4406:5a0:602::19",
+      "kavlan-16": "2001:660:4406:7a0:602::19",
+      "kavlan-18": "2001:660:4406:8a0:602::19",
+      "kavlan-2": "2001:660:4406:681:2::19",
+      "kavlan-20": "2001:660:4406:3a0:602::19",
+      "kavlan-21": "2001:660:4406:6a0:602::19",
+      "kavlan-3": "2001:660:4406:682:2::19",
+      "kavlan-4": "2001:660:4406:690:2::19",
+      "kavlan-5": "2001:660:4406:691:2::19",
+      "kavlan-6": "2001:660:4406:692:2::19",
+      "kavlan-7": "2001:660:4406:693:2::19",
+      "kavlan-8": "2001:660:4406:694:2::19",
+      "kavlan-9": "2001:660:4406:695:2::19"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::19",
-      "kavlan-11": "2001:660:4406:1a0:602:1::19",
-      "kavlan-12": "2001:660:4406:2a0:602:1::19",
-      "kavlan-13": "2001:660:4406:4a0:602:1::19",
-      "kavlan-14": "2001:660:4406:5a0:602:1::19",
-      "kavlan-16": "2001:660:4406:7a0:602:1::19",
-      "kavlan-18": "2001:660:4406:8a0:602:1::19",
-      "kavlan-2": "2001:660:4406:681:2:1::19",
-      "kavlan-20": "2001:660:4406:3a0:602:1::19",
-      "kavlan-21": "2001:660:4406:6a0:602:1::19",
-      "kavlan-3": "2001:660:4406:682:2:1::19",
-      "kavlan-4": "2001:660:4406:690:2:1::19",
-      "kavlan-5": "2001:660:4406:691:2:1::19",
-      "kavlan-6": "2001:660:4406:692:2:1::19",
-      "kavlan-7": "2001:660:4406:693:2:1::19",
-      "kavlan-8": "2001:660:4406:694:2:1::19",
-      "kavlan-9": "2001:660:4406:695:2:1::19"
+      "kavlan-1": "2001:660:4406:680:2:1:0:19",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:19",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:19",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:19",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:19",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:19",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:19",
+      "kavlan-2": "2001:660:4406:681:2:1:0:19",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:19",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:19",
+      "kavlan-3": "2001:660:4406:682:2:1:0:19",
+      "kavlan-4": "2001:660:4406:690:2:1:0:19",
+      "kavlan-5": "2001:660:4406:691:2:1:0:19",
+      "kavlan-6": "2001:660:4406:692:2:1:0:19",
+      "kavlan-7": "2001:660:4406:693:2:1:0:19",
+      "kavlan-8": "2001:660:4406:694:2:1:0:19",
+      "kavlan-9": "2001:660:4406:695:2:1:0:19"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.25",
-      "ip6": "2001:660:4406:600:2:0::19",
+      "ip6": "2001:660:4406:600:2::19",
       "kavlan": true,
       "mac": "24:6e:96:6a:48:b8",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.25",
-      "ip6": "2001:660:4406:600:2:1::19",
+      "ip6": "2001:660:4406:600:2:1:0:19",
       "kavlan": true,
       "mac": "24:6e:96:6a:48:ba",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-26.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-26.json
index 2e826f4ac82a54f72c185a5932abe59532d0fa69..5fbda8eb59f6676cc371a739026a1eaea9909725 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-26.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-26.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::1a",
-      "kavlan-11": "2001:660:4406:1a0:602:0::1a",
-      "kavlan-12": "2001:660:4406:2a0:602:0::1a",
-      "kavlan-13": "2001:660:4406:4a0:602:0::1a",
-      "kavlan-14": "2001:660:4406:5a0:602:0::1a",
-      "kavlan-16": "2001:660:4406:7a0:602:0::1a",
-      "kavlan-18": "2001:660:4406:8a0:602:0::1a",
-      "kavlan-2": "2001:660:4406:681:2:0::1a",
-      "kavlan-20": "2001:660:4406:3a0:602:0::1a",
-      "kavlan-21": "2001:660:4406:6a0:602:0::1a",
-      "kavlan-3": "2001:660:4406:682:2:0::1a",
-      "kavlan-4": "2001:660:4406:690:2:0::1a",
-      "kavlan-5": "2001:660:4406:691:2:0::1a",
-      "kavlan-6": "2001:660:4406:692:2:0::1a",
-      "kavlan-7": "2001:660:4406:693:2:0::1a",
-      "kavlan-8": "2001:660:4406:694:2:0::1a",
-      "kavlan-9": "2001:660:4406:695:2:0::1a"
+      "kavlan-1": "2001:660:4406:680:2::1a",
+      "kavlan-11": "2001:660:4406:1a0:602::1a",
+      "kavlan-12": "2001:660:4406:2a0:602::1a",
+      "kavlan-13": "2001:660:4406:4a0:602::1a",
+      "kavlan-14": "2001:660:4406:5a0:602::1a",
+      "kavlan-16": "2001:660:4406:7a0:602::1a",
+      "kavlan-18": "2001:660:4406:8a0:602::1a",
+      "kavlan-2": "2001:660:4406:681:2::1a",
+      "kavlan-20": "2001:660:4406:3a0:602::1a",
+      "kavlan-21": "2001:660:4406:6a0:602::1a",
+      "kavlan-3": "2001:660:4406:682:2::1a",
+      "kavlan-4": "2001:660:4406:690:2::1a",
+      "kavlan-5": "2001:660:4406:691:2::1a",
+      "kavlan-6": "2001:660:4406:692:2::1a",
+      "kavlan-7": "2001:660:4406:693:2::1a",
+      "kavlan-8": "2001:660:4406:694:2::1a",
+      "kavlan-9": "2001:660:4406:695:2::1a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::1a",
-      "kavlan-11": "2001:660:4406:1a0:602:1::1a",
-      "kavlan-12": "2001:660:4406:2a0:602:1::1a",
-      "kavlan-13": "2001:660:4406:4a0:602:1::1a",
-      "kavlan-14": "2001:660:4406:5a0:602:1::1a",
-      "kavlan-16": "2001:660:4406:7a0:602:1::1a",
-      "kavlan-18": "2001:660:4406:8a0:602:1::1a",
-      "kavlan-2": "2001:660:4406:681:2:1::1a",
-      "kavlan-20": "2001:660:4406:3a0:602:1::1a",
-      "kavlan-21": "2001:660:4406:6a0:602:1::1a",
-      "kavlan-3": "2001:660:4406:682:2:1::1a",
-      "kavlan-4": "2001:660:4406:690:2:1::1a",
-      "kavlan-5": "2001:660:4406:691:2:1::1a",
-      "kavlan-6": "2001:660:4406:692:2:1::1a",
-      "kavlan-7": "2001:660:4406:693:2:1::1a",
-      "kavlan-8": "2001:660:4406:694:2:1::1a",
-      "kavlan-9": "2001:660:4406:695:2:1::1a"
+      "kavlan-1": "2001:660:4406:680:2:1:0:1a",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:1a",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:1a",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:1a",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:1a",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:1a",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:1a",
+      "kavlan-2": "2001:660:4406:681:2:1:0:1a",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:1a",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:1a",
+      "kavlan-3": "2001:660:4406:682:2:1:0:1a",
+      "kavlan-4": "2001:660:4406:690:2:1:0:1a",
+      "kavlan-5": "2001:660:4406:691:2:1:0:1a",
+      "kavlan-6": "2001:660:4406:692:2:1:0:1a",
+      "kavlan-7": "2001:660:4406:693:2:1:0:1a",
+      "kavlan-8": "2001:660:4406:694:2:1:0:1a",
+      "kavlan-9": "2001:660:4406:695:2:1:0:1a"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.26",
-      "ip6": "2001:660:4406:600:2:0::1a",
+      "ip6": "2001:660:4406:600:2::1a",
       "kavlan": true,
       "mac": "24:6e:96:6a:4e:e8",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.26",
-      "ip6": "2001:660:4406:600:2:1::1a",
+      "ip6": "2001:660:4406:600:2:1:0:1a",
       "kavlan": true,
       "mac": "24:6e:96:6a:4e:ea",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-27.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-27.json
index 466eda487312cae7f4de678f45be1dcf787e3057..0a74c8f6fa47453964da2cd546ea35b4903c8a79 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-27.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-27.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::1b",
-      "kavlan-11": "2001:660:4406:1a0:602:0::1b",
-      "kavlan-12": "2001:660:4406:2a0:602:0::1b",
-      "kavlan-13": "2001:660:4406:4a0:602:0::1b",
-      "kavlan-14": "2001:660:4406:5a0:602:0::1b",
-      "kavlan-16": "2001:660:4406:7a0:602:0::1b",
-      "kavlan-18": "2001:660:4406:8a0:602:0::1b",
-      "kavlan-2": "2001:660:4406:681:2:0::1b",
-      "kavlan-20": "2001:660:4406:3a0:602:0::1b",
-      "kavlan-21": "2001:660:4406:6a0:602:0::1b",
-      "kavlan-3": "2001:660:4406:682:2:0::1b",
-      "kavlan-4": "2001:660:4406:690:2:0::1b",
-      "kavlan-5": "2001:660:4406:691:2:0::1b",
-      "kavlan-6": "2001:660:4406:692:2:0::1b",
-      "kavlan-7": "2001:660:4406:693:2:0::1b",
-      "kavlan-8": "2001:660:4406:694:2:0::1b",
-      "kavlan-9": "2001:660:4406:695:2:0::1b"
+      "kavlan-1": "2001:660:4406:680:2::1b",
+      "kavlan-11": "2001:660:4406:1a0:602::1b",
+      "kavlan-12": "2001:660:4406:2a0:602::1b",
+      "kavlan-13": "2001:660:4406:4a0:602::1b",
+      "kavlan-14": "2001:660:4406:5a0:602::1b",
+      "kavlan-16": "2001:660:4406:7a0:602::1b",
+      "kavlan-18": "2001:660:4406:8a0:602::1b",
+      "kavlan-2": "2001:660:4406:681:2::1b",
+      "kavlan-20": "2001:660:4406:3a0:602::1b",
+      "kavlan-21": "2001:660:4406:6a0:602::1b",
+      "kavlan-3": "2001:660:4406:682:2::1b",
+      "kavlan-4": "2001:660:4406:690:2::1b",
+      "kavlan-5": "2001:660:4406:691:2::1b",
+      "kavlan-6": "2001:660:4406:692:2::1b",
+      "kavlan-7": "2001:660:4406:693:2::1b",
+      "kavlan-8": "2001:660:4406:694:2::1b",
+      "kavlan-9": "2001:660:4406:695:2::1b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::1b",
-      "kavlan-11": "2001:660:4406:1a0:602:1::1b",
-      "kavlan-12": "2001:660:4406:2a0:602:1::1b",
-      "kavlan-13": "2001:660:4406:4a0:602:1::1b",
-      "kavlan-14": "2001:660:4406:5a0:602:1::1b",
-      "kavlan-16": "2001:660:4406:7a0:602:1::1b",
-      "kavlan-18": "2001:660:4406:8a0:602:1::1b",
-      "kavlan-2": "2001:660:4406:681:2:1::1b",
-      "kavlan-20": "2001:660:4406:3a0:602:1::1b",
-      "kavlan-21": "2001:660:4406:6a0:602:1::1b",
-      "kavlan-3": "2001:660:4406:682:2:1::1b",
-      "kavlan-4": "2001:660:4406:690:2:1::1b",
-      "kavlan-5": "2001:660:4406:691:2:1::1b",
-      "kavlan-6": "2001:660:4406:692:2:1::1b",
-      "kavlan-7": "2001:660:4406:693:2:1::1b",
-      "kavlan-8": "2001:660:4406:694:2:1::1b",
-      "kavlan-9": "2001:660:4406:695:2:1::1b"
+      "kavlan-1": "2001:660:4406:680:2:1:0:1b",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:1b",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:1b",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:1b",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:1b",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:1b",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:1b",
+      "kavlan-2": "2001:660:4406:681:2:1:0:1b",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:1b",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:1b",
+      "kavlan-3": "2001:660:4406:682:2:1:0:1b",
+      "kavlan-4": "2001:660:4406:690:2:1:0:1b",
+      "kavlan-5": "2001:660:4406:691:2:1:0:1b",
+      "kavlan-6": "2001:660:4406:692:2:1:0:1b",
+      "kavlan-7": "2001:660:4406:693:2:1:0:1b",
+      "kavlan-8": "2001:660:4406:694:2:1:0:1b",
+      "kavlan-9": "2001:660:4406:695:2:1:0:1b"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.27",
-      "ip6": "2001:660:4406:600:2:0::1b",
+      "ip6": "2001:660:4406:600:2::1b",
       "kavlan": true,
       "mac": "24:6e:96:6a:d9:f8",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.27",
-      "ip6": "2001:660:4406:600:2:1::1b",
+      "ip6": "2001:660:4406:600:2:1:0:1b",
       "kavlan": true,
       "mac": "24:6e:96:6a:d9:fa",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-28.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-28.json
index c1dee5e77ec75854c822b05d6816d35eaed4c34e..efe0c56899a1dc44630498156a1c6cd3c6797bc5 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-28.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-28.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::1c",
-      "kavlan-11": "2001:660:4406:1a0:602:0::1c",
-      "kavlan-12": "2001:660:4406:2a0:602:0::1c",
-      "kavlan-13": "2001:660:4406:4a0:602:0::1c",
-      "kavlan-14": "2001:660:4406:5a0:602:0::1c",
-      "kavlan-16": "2001:660:4406:7a0:602:0::1c",
-      "kavlan-18": "2001:660:4406:8a0:602:0::1c",
-      "kavlan-2": "2001:660:4406:681:2:0::1c",
-      "kavlan-20": "2001:660:4406:3a0:602:0::1c",
-      "kavlan-21": "2001:660:4406:6a0:602:0::1c",
-      "kavlan-3": "2001:660:4406:682:2:0::1c",
-      "kavlan-4": "2001:660:4406:690:2:0::1c",
-      "kavlan-5": "2001:660:4406:691:2:0::1c",
-      "kavlan-6": "2001:660:4406:692:2:0::1c",
-      "kavlan-7": "2001:660:4406:693:2:0::1c",
-      "kavlan-8": "2001:660:4406:694:2:0::1c",
-      "kavlan-9": "2001:660:4406:695:2:0::1c"
+      "kavlan-1": "2001:660:4406:680:2::1c",
+      "kavlan-11": "2001:660:4406:1a0:602::1c",
+      "kavlan-12": "2001:660:4406:2a0:602::1c",
+      "kavlan-13": "2001:660:4406:4a0:602::1c",
+      "kavlan-14": "2001:660:4406:5a0:602::1c",
+      "kavlan-16": "2001:660:4406:7a0:602::1c",
+      "kavlan-18": "2001:660:4406:8a0:602::1c",
+      "kavlan-2": "2001:660:4406:681:2::1c",
+      "kavlan-20": "2001:660:4406:3a0:602::1c",
+      "kavlan-21": "2001:660:4406:6a0:602::1c",
+      "kavlan-3": "2001:660:4406:682:2::1c",
+      "kavlan-4": "2001:660:4406:690:2::1c",
+      "kavlan-5": "2001:660:4406:691:2::1c",
+      "kavlan-6": "2001:660:4406:692:2::1c",
+      "kavlan-7": "2001:660:4406:693:2::1c",
+      "kavlan-8": "2001:660:4406:694:2::1c",
+      "kavlan-9": "2001:660:4406:695:2::1c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::1c",
-      "kavlan-11": "2001:660:4406:1a0:602:1::1c",
-      "kavlan-12": "2001:660:4406:2a0:602:1::1c",
-      "kavlan-13": "2001:660:4406:4a0:602:1::1c",
-      "kavlan-14": "2001:660:4406:5a0:602:1::1c",
-      "kavlan-16": "2001:660:4406:7a0:602:1::1c",
-      "kavlan-18": "2001:660:4406:8a0:602:1::1c",
-      "kavlan-2": "2001:660:4406:681:2:1::1c",
-      "kavlan-20": "2001:660:4406:3a0:602:1::1c",
-      "kavlan-21": "2001:660:4406:6a0:602:1::1c",
-      "kavlan-3": "2001:660:4406:682:2:1::1c",
-      "kavlan-4": "2001:660:4406:690:2:1::1c",
-      "kavlan-5": "2001:660:4406:691:2:1::1c",
-      "kavlan-6": "2001:660:4406:692:2:1::1c",
-      "kavlan-7": "2001:660:4406:693:2:1::1c",
-      "kavlan-8": "2001:660:4406:694:2:1::1c",
-      "kavlan-9": "2001:660:4406:695:2:1::1c"
+      "kavlan-1": "2001:660:4406:680:2:1:0:1c",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:1c",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:1c",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:1c",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:1c",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:1c",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:1c",
+      "kavlan-2": "2001:660:4406:681:2:1:0:1c",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:1c",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:1c",
+      "kavlan-3": "2001:660:4406:682:2:1:0:1c",
+      "kavlan-4": "2001:660:4406:690:2:1:0:1c",
+      "kavlan-5": "2001:660:4406:691:2:1:0:1c",
+      "kavlan-6": "2001:660:4406:692:2:1:0:1c",
+      "kavlan-7": "2001:660:4406:693:2:1:0:1c",
+      "kavlan-8": "2001:660:4406:694:2:1:0:1c",
+      "kavlan-9": "2001:660:4406:695:2:1:0:1c"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.28",
-      "ip6": "2001:660:4406:600:2:0::1c",
+      "ip6": "2001:660:4406:600:2::1c",
       "kavlan": true,
       "mac": "24:6e:96:6a:ca:d0",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.28",
-      "ip6": "2001:660:4406:600:2:1::1c",
+      "ip6": "2001:660:4406:600:2:1:0:1c",
       "kavlan": true,
       "mac": "24:6e:96:6a:ca:d2",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-29.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-29.json
index d97a67c23f83a29f9ff9091f45021591a2eedd68..983c22c3f316a0b2d3195fd857c136abdf24c46d 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-29.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-29.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::1d",
-      "kavlan-11": "2001:660:4406:1a0:602:0::1d",
-      "kavlan-12": "2001:660:4406:2a0:602:0::1d",
-      "kavlan-13": "2001:660:4406:4a0:602:0::1d",
-      "kavlan-14": "2001:660:4406:5a0:602:0::1d",
-      "kavlan-16": "2001:660:4406:7a0:602:0::1d",
-      "kavlan-18": "2001:660:4406:8a0:602:0::1d",
-      "kavlan-2": "2001:660:4406:681:2:0::1d",
-      "kavlan-20": "2001:660:4406:3a0:602:0::1d",
-      "kavlan-21": "2001:660:4406:6a0:602:0::1d",
-      "kavlan-3": "2001:660:4406:682:2:0::1d",
-      "kavlan-4": "2001:660:4406:690:2:0::1d",
-      "kavlan-5": "2001:660:4406:691:2:0::1d",
-      "kavlan-6": "2001:660:4406:692:2:0::1d",
-      "kavlan-7": "2001:660:4406:693:2:0::1d",
-      "kavlan-8": "2001:660:4406:694:2:0::1d",
-      "kavlan-9": "2001:660:4406:695:2:0::1d"
+      "kavlan-1": "2001:660:4406:680:2::1d",
+      "kavlan-11": "2001:660:4406:1a0:602::1d",
+      "kavlan-12": "2001:660:4406:2a0:602::1d",
+      "kavlan-13": "2001:660:4406:4a0:602::1d",
+      "kavlan-14": "2001:660:4406:5a0:602::1d",
+      "kavlan-16": "2001:660:4406:7a0:602::1d",
+      "kavlan-18": "2001:660:4406:8a0:602::1d",
+      "kavlan-2": "2001:660:4406:681:2::1d",
+      "kavlan-20": "2001:660:4406:3a0:602::1d",
+      "kavlan-21": "2001:660:4406:6a0:602::1d",
+      "kavlan-3": "2001:660:4406:682:2::1d",
+      "kavlan-4": "2001:660:4406:690:2::1d",
+      "kavlan-5": "2001:660:4406:691:2::1d",
+      "kavlan-6": "2001:660:4406:692:2::1d",
+      "kavlan-7": "2001:660:4406:693:2::1d",
+      "kavlan-8": "2001:660:4406:694:2::1d",
+      "kavlan-9": "2001:660:4406:695:2::1d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::1d",
-      "kavlan-11": "2001:660:4406:1a0:602:1::1d",
-      "kavlan-12": "2001:660:4406:2a0:602:1::1d",
-      "kavlan-13": "2001:660:4406:4a0:602:1::1d",
-      "kavlan-14": "2001:660:4406:5a0:602:1::1d",
-      "kavlan-16": "2001:660:4406:7a0:602:1::1d",
-      "kavlan-18": "2001:660:4406:8a0:602:1::1d",
-      "kavlan-2": "2001:660:4406:681:2:1::1d",
-      "kavlan-20": "2001:660:4406:3a0:602:1::1d",
-      "kavlan-21": "2001:660:4406:6a0:602:1::1d",
-      "kavlan-3": "2001:660:4406:682:2:1::1d",
-      "kavlan-4": "2001:660:4406:690:2:1::1d",
-      "kavlan-5": "2001:660:4406:691:2:1::1d",
-      "kavlan-6": "2001:660:4406:692:2:1::1d",
-      "kavlan-7": "2001:660:4406:693:2:1::1d",
-      "kavlan-8": "2001:660:4406:694:2:1::1d",
-      "kavlan-9": "2001:660:4406:695:2:1::1d"
+      "kavlan-1": "2001:660:4406:680:2:1:0:1d",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:1d",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:1d",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:1d",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:1d",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:1d",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:1d",
+      "kavlan-2": "2001:660:4406:681:2:1:0:1d",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:1d",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:1d",
+      "kavlan-3": "2001:660:4406:682:2:1:0:1d",
+      "kavlan-4": "2001:660:4406:690:2:1:0:1d",
+      "kavlan-5": "2001:660:4406:691:2:1:0:1d",
+      "kavlan-6": "2001:660:4406:692:2:1:0:1d",
+      "kavlan-7": "2001:660:4406:693:2:1:0:1d",
+      "kavlan-8": "2001:660:4406:694:2:1:0:1d",
+      "kavlan-9": "2001:660:4406:695:2:1:0:1d"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.29",
-      "ip6": "2001:660:4406:600:2:0::1d",
+      "ip6": "2001:660:4406:600:2::1d",
       "kavlan": true,
       "mac": "24:6e:96:6a:d8:20",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.29",
-      "ip6": "2001:660:4406:600:2:1::1d",
+      "ip6": "2001:660:4406:600:2:1:0:1d",
       "kavlan": true,
       "mac": "24:6e:96:6a:d8:22",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-3.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-3.json
index 7fd3ba3bff43ece35d1beac027d2ed5401237731..8317d9f2e3242e7ac9296a1f3691e26dc25c67c5 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-3.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-3.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::3",
-      "kavlan-11": "2001:660:4406:1a0:602:0::3",
-      "kavlan-12": "2001:660:4406:2a0:602:0::3",
-      "kavlan-13": "2001:660:4406:4a0:602:0::3",
-      "kavlan-14": "2001:660:4406:5a0:602:0::3",
-      "kavlan-16": "2001:660:4406:7a0:602:0::3",
-      "kavlan-18": "2001:660:4406:8a0:602:0::3",
-      "kavlan-2": "2001:660:4406:681:2:0::3",
-      "kavlan-20": "2001:660:4406:3a0:602:0::3",
-      "kavlan-21": "2001:660:4406:6a0:602:0::3",
-      "kavlan-3": "2001:660:4406:682:2:0::3",
-      "kavlan-4": "2001:660:4406:690:2:0::3",
-      "kavlan-5": "2001:660:4406:691:2:0::3",
-      "kavlan-6": "2001:660:4406:692:2:0::3",
-      "kavlan-7": "2001:660:4406:693:2:0::3",
-      "kavlan-8": "2001:660:4406:694:2:0::3",
-      "kavlan-9": "2001:660:4406:695:2:0::3"
+      "kavlan-1": "2001:660:4406:680:2::3",
+      "kavlan-11": "2001:660:4406:1a0:602::3",
+      "kavlan-12": "2001:660:4406:2a0:602::3",
+      "kavlan-13": "2001:660:4406:4a0:602::3",
+      "kavlan-14": "2001:660:4406:5a0:602::3",
+      "kavlan-16": "2001:660:4406:7a0:602::3",
+      "kavlan-18": "2001:660:4406:8a0:602::3",
+      "kavlan-2": "2001:660:4406:681:2::3",
+      "kavlan-20": "2001:660:4406:3a0:602::3",
+      "kavlan-21": "2001:660:4406:6a0:602::3",
+      "kavlan-3": "2001:660:4406:682:2::3",
+      "kavlan-4": "2001:660:4406:690:2::3",
+      "kavlan-5": "2001:660:4406:691:2::3",
+      "kavlan-6": "2001:660:4406:692:2::3",
+      "kavlan-7": "2001:660:4406:693:2::3",
+      "kavlan-8": "2001:660:4406:694:2::3",
+      "kavlan-9": "2001:660:4406:695:2::3"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::3",
-      "kavlan-11": "2001:660:4406:1a0:602:1::3",
-      "kavlan-12": "2001:660:4406:2a0:602:1::3",
-      "kavlan-13": "2001:660:4406:4a0:602:1::3",
-      "kavlan-14": "2001:660:4406:5a0:602:1::3",
-      "kavlan-16": "2001:660:4406:7a0:602:1::3",
-      "kavlan-18": "2001:660:4406:8a0:602:1::3",
-      "kavlan-2": "2001:660:4406:681:2:1::3",
-      "kavlan-20": "2001:660:4406:3a0:602:1::3",
-      "kavlan-21": "2001:660:4406:6a0:602:1::3",
-      "kavlan-3": "2001:660:4406:682:2:1::3",
-      "kavlan-4": "2001:660:4406:690:2:1::3",
-      "kavlan-5": "2001:660:4406:691:2:1::3",
-      "kavlan-6": "2001:660:4406:692:2:1::3",
-      "kavlan-7": "2001:660:4406:693:2:1::3",
-      "kavlan-8": "2001:660:4406:694:2:1::3",
-      "kavlan-9": "2001:660:4406:695:2:1::3"
+      "kavlan-1": "2001:660:4406:680:2:1:0:3",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:3",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:3",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:3",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:3",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:3",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:3",
+      "kavlan-2": "2001:660:4406:681:2:1:0:3",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:3",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:3",
+      "kavlan-3": "2001:660:4406:682:2:1:0:3",
+      "kavlan-4": "2001:660:4406:690:2:1:0:3",
+      "kavlan-5": "2001:660:4406:691:2:1:0:3",
+      "kavlan-6": "2001:660:4406:692:2:1:0:3",
+      "kavlan-7": "2001:660:4406:693:2:1:0:3",
+      "kavlan-8": "2001:660:4406:694:2:1:0:3",
+      "kavlan-9": "2001:660:4406:695:2:1:0:3"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.3",
-      "ip6": "2001:660:4406:600:2:0::3",
+      "ip6": "2001:660:4406:600:2::3",
       "kavlan": true,
       "mac": "24:6e:96:6a:d7:18",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.3",
-      "ip6": "2001:660:4406:600:2:1::3",
+      "ip6": "2001:660:4406:600:2:1:0:3",
       "kavlan": true,
       "mac": "24:6e:96:6a:d7:1a",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-30.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-30.json
index 66ac41f4e86be6c99d1c6dd56bdddd4dce0784ce..96cf9a1a3368ac56283e6d971180954f6dfe9a09 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-30.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-30.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::1e",
-      "kavlan-11": "2001:660:4406:1a0:602:0::1e",
-      "kavlan-12": "2001:660:4406:2a0:602:0::1e",
-      "kavlan-13": "2001:660:4406:4a0:602:0::1e",
-      "kavlan-14": "2001:660:4406:5a0:602:0::1e",
-      "kavlan-16": "2001:660:4406:7a0:602:0::1e",
-      "kavlan-18": "2001:660:4406:8a0:602:0::1e",
-      "kavlan-2": "2001:660:4406:681:2:0::1e",
-      "kavlan-20": "2001:660:4406:3a0:602:0::1e",
-      "kavlan-21": "2001:660:4406:6a0:602:0::1e",
-      "kavlan-3": "2001:660:4406:682:2:0::1e",
-      "kavlan-4": "2001:660:4406:690:2:0::1e",
-      "kavlan-5": "2001:660:4406:691:2:0::1e",
-      "kavlan-6": "2001:660:4406:692:2:0::1e",
-      "kavlan-7": "2001:660:4406:693:2:0::1e",
-      "kavlan-8": "2001:660:4406:694:2:0::1e",
-      "kavlan-9": "2001:660:4406:695:2:0::1e"
+      "kavlan-1": "2001:660:4406:680:2::1e",
+      "kavlan-11": "2001:660:4406:1a0:602::1e",
+      "kavlan-12": "2001:660:4406:2a0:602::1e",
+      "kavlan-13": "2001:660:4406:4a0:602::1e",
+      "kavlan-14": "2001:660:4406:5a0:602::1e",
+      "kavlan-16": "2001:660:4406:7a0:602::1e",
+      "kavlan-18": "2001:660:4406:8a0:602::1e",
+      "kavlan-2": "2001:660:4406:681:2::1e",
+      "kavlan-20": "2001:660:4406:3a0:602::1e",
+      "kavlan-21": "2001:660:4406:6a0:602::1e",
+      "kavlan-3": "2001:660:4406:682:2::1e",
+      "kavlan-4": "2001:660:4406:690:2::1e",
+      "kavlan-5": "2001:660:4406:691:2::1e",
+      "kavlan-6": "2001:660:4406:692:2::1e",
+      "kavlan-7": "2001:660:4406:693:2::1e",
+      "kavlan-8": "2001:660:4406:694:2::1e",
+      "kavlan-9": "2001:660:4406:695:2::1e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::1e",
-      "kavlan-11": "2001:660:4406:1a0:602:1::1e",
-      "kavlan-12": "2001:660:4406:2a0:602:1::1e",
-      "kavlan-13": "2001:660:4406:4a0:602:1::1e",
-      "kavlan-14": "2001:660:4406:5a0:602:1::1e",
-      "kavlan-16": "2001:660:4406:7a0:602:1::1e",
-      "kavlan-18": "2001:660:4406:8a0:602:1::1e",
-      "kavlan-2": "2001:660:4406:681:2:1::1e",
-      "kavlan-20": "2001:660:4406:3a0:602:1::1e",
-      "kavlan-21": "2001:660:4406:6a0:602:1::1e",
-      "kavlan-3": "2001:660:4406:682:2:1::1e",
-      "kavlan-4": "2001:660:4406:690:2:1::1e",
-      "kavlan-5": "2001:660:4406:691:2:1::1e",
-      "kavlan-6": "2001:660:4406:692:2:1::1e",
-      "kavlan-7": "2001:660:4406:693:2:1::1e",
-      "kavlan-8": "2001:660:4406:694:2:1::1e",
-      "kavlan-9": "2001:660:4406:695:2:1::1e"
+      "kavlan-1": "2001:660:4406:680:2:1:0:1e",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:1e",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:1e",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:1e",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:1e",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:1e",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:1e",
+      "kavlan-2": "2001:660:4406:681:2:1:0:1e",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:1e",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:1e",
+      "kavlan-3": "2001:660:4406:682:2:1:0:1e",
+      "kavlan-4": "2001:660:4406:690:2:1:0:1e",
+      "kavlan-5": "2001:660:4406:691:2:1:0:1e",
+      "kavlan-6": "2001:660:4406:692:2:1:0:1e",
+      "kavlan-7": "2001:660:4406:693:2:1:0:1e",
+      "kavlan-8": "2001:660:4406:694:2:1:0:1e",
+      "kavlan-9": "2001:660:4406:695:2:1:0:1e"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.30",
-      "ip6": "2001:660:4406:600:2:0::1e",
+      "ip6": "2001:660:4406:600:2::1e",
       "kavlan": true,
       "mac": "24:6e:96:6a:51:88",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.30",
-      "ip6": "2001:660:4406:600:2:1::1e",
+      "ip6": "2001:660:4406:600:2:1:0:1e",
       "kavlan": true,
       "mac": "24:6e:96:6a:51:8a",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-31.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-31.json
index b148cd78eaeeb482aa3fb721be1abb18d03e33cb..5a9a61cf29a7c8ace96e0ecb5b6dbbf28bb78c97 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-31.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-31.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::1f",
-      "kavlan-11": "2001:660:4406:1a0:602:0::1f",
-      "kavlan-12": "2001:660:4406:2a0:602:0::1f",
-      "kavlan-13": "2001:660:4406:4a0:602:0::1f",
-      "kavlan-14": "2001:660:4406:5a0:602:0::1f",
-      "kavlan-16": "2001:660:4406:7a0:602:0::1f",
-      "kavlan-18": "2001:660:4406:8a0:602:0::1f",
-      "kavlan-2": "2001:660:4406:681:2:0::1f",
-      "kavlan-20": "2001:660:4406:3a0:602:0::1f",
-      "kavlan-21": "2001:660:4406:6a0:602:0::1f",
-      "kavlan-3": "2001:660:4406:682:2:0::1f",
-      "kavlan-4": "2001:660:4406:690:2:0::1f",
-      "kavlan-5": "2001:660:4406:691:2:0::1f",
-      "kavlan-6": "2001:660:4406:692:2:0::1f",
-      "kavlan-7": "2001:660:4406:693:2:0::1f",
-      "kavlan-8": "2001:660:4406:694:2:0::1f",
-      "kavlan-9": "2001:660:4406:695:2:0::1f"
+      "kavlan-1": "2001:660:4406:680:2::1f",
+      "kavlan-11": "2001:660:4406:1a0:602::1f",
+      "kavlan-12": "2001:660:4406:2a0:602::1f",
+      "kavlan-13": "2001:660:4406:4a0:602::1f",
+      "kavlan-14": "2001:660:4406:5a0:602::1f",
+      "kavlan-16": "2001:660:4406:7a0:602::1f",
+      "kavlan-18": "2001:660:4406:8a0:602::1f",
+      "kavlan-2": "2001:660:4406:681:2::1f",
+      "kavlan-20": "2001:660:4406:3a0:602::1f",
+      "kavlan-21": "2001:660:4406:6a0:602::1f",
+      "kavlan-3": "2001:660:4406:682:2::1f",
+      "kavlan-4": "2001:660:4406:690:2::1f",
+      "kavlan-5": "2001:660:4406:691:2::1f",
+      "kavlan-6": "2001:660:4406:692:2::1f",
+      "kavlan-7": "2001:660:4406:693:2::1f",
+      "kavlan-8": "2001:660:4406:694:2::1f",
+      "kavlan-9": "2001:660:4406:695:2::1f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::1f",
-      "kavlan-11": "2001:660:4406:1a0:602:1::1f",
-      "kavlan-12": "2001:660:4406:2a0:602:1::1f",
-      "kavlan-13": "2001:660:4406:4a0:602:1::1f",
-      "kavlan-14": "2001:660:4406:5a0:602:1::1f",
-      "kavlan-16": "2001:660:4406:7a0:602:1::1f",
-      "kavlan-18": "2001:660:4406:8a0:602:1::1f",
-      "kavlan-2": "2001:660:4406:681:2:1::1f",
-      "kavlan-20": "2001:660:4406:3a0:602:1::1f",
-      "kavlan-21": "2001:660:4406:6a0:602:1::1f",
-      "kavlan-3": "2001:660:4406:682:2:1::1f",
-      "kavlan-4": "2001:660:4406:690:2:1::1f",
-      "kavlan-5": "2001:660:4406:691:2:1::1f",
-      "kavlan-6": "2001:660:4406:692:2:1::1f",
-      "kavlan-7": "2001:660:4406:693:2:1::1f",
-      "kavlan-8": "2001:660:4406:694:2:1::1f",
-      "kavlan-9": "2001:660:4406:695:2:1::1f"
+      "kavlan-1": "2001:660:4406:680:2:1:0:1f",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:1f",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:1f",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:1f",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:1f",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:1f",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:1f",
+      "kavlan-2": "2001:660:4406:681:2:1:0:1f",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:1f",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:1f",
+      "kavlan-3": "2001:660:4406:682:2:1:0:1f",
+      "kavlan-4": "2001:660:4406:690:2:1:0:1f",
+      "kavlan-5": "2001:660:4406:691:2:1:0:1f",
+      "kavlan-6": "2001:660:4406:692:2:1:0:1f",
+      "kavlan-7": "2001:660:4406:693:2:1:0:1f",
+      "kavlan-8": "2001:660:4406:694:2:1:0:1f",
+      "kavlan-9": "2001:660:4406:695:2:1:0:1f"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.31",
-      "ip6": "2001:660:4406:600:2:0::1f",
+      "ip6": "2001:660:4406:600:2::1f",
       "kavlan": true,
       "mac": "24:6e:96:6a:d8:28",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.31",
-      "ip6": "2001:660:4406:600:2:1::1f",
+      "ip6": "2001:660:4406:600:2:1:0:1f",
       "kavlan": true,
       "mac": "24:6e:96:6a:d8:2a",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-32.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-32.json
index 75e39103cc6fb15fd5b81def93782d824acda60d..9d1e74c17030dd417ace6529712750d9f82516f8 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-32.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-32.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::20",
-      "kavlan-11": "2001:660:4406:1a0:602:0::20",
-      "kavlan-12": "2001:660:4406:2a0:602:0::20",
-      "kavlan-13": "2001:660:4406:4a0:602:0::20",
-      "kavlan-14": "2001:660:4406:5a0:602:0::20",
-      "kavlan-16": "2001:660:4406:7a0:602:0::20",
-      "kavlan-18": "2001:660:4406:8a0:602:0::20",
-      "kavlan-2": "2001:660:4406:681:2:0::20",
-      "kavlan-20": "2001:660:4406:3a0:602:0::20",
-      "kavlan-21": "2001:660:4406:6a0:602:0::20",
-      "kavlan-3": "2001:660:4406:682:2:0::20",
-      "kavlan-4": "2001:660:4406:690:2:0::20",
-      "kavlan-5": "2001:660:4406:691:2:0::20",
-      "kavlan-6": "2001:660:4406:692:2:0::20",
-      "kavlan-7": "2001:660:4406:693:2:0::20",
-      "kavlan-8": "2001:660:4406:694:2:0::20",
-      "kavlan-9": "2001:660:4406:695:2:0::20"
+      "kavlan-1": "2001:660:4406:680:2::20",
+      "kavlan-11": "2001:660:4406:1a0:602::20",
+      "kavlan-12": "2001:660:4406:2a0:602::20",
+      "kavlan-13": "2001:660:4406:4a0:602::20",
+      "kavlan-14": "2001:660:4406:5a0:602::20",
+      "kavlan-16": "2001:660:4406:7a0:602::20",
+      "kavlan-18": "2001:660:4406:8a0:602::20",
+      "kavlan-2": "2001:660:4406:681:2::20",
+      "kavlan-20": "2001:660:4406:3a0:602::20",
+      "kavlan-21": "2001:660:4406:6a0:602::20",
+      "kavlan-3": "2001:660:4406:682:2::20",
+      "kavlan-4": "2001:660:4406:690:2::20",
+      "kavlan-5": "2001:660:4406:691:2::20",
+      "kavlan-6": "2001:660:4406:692:2::20",
+      "kavlan-7": "2001:660:4406:693:2::20",
+      "kavlan-8": "2001:660:4406:694:2::20",
+      "kavlan-9": "2001:660:4406:695:2::20"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::20",
-      "kavlan-11": "2001:660:4406:1a0:602:1::20",
-      "kavlan-12": "2001:660:4406:2a0:602:1::20",
-      "kavlan-13": "2001:660:4406:4a0:602:1::20",
-      "kavlan-14": "2001:660:4406:5a0:602:1::20",
-      "kavlan-16": "2001:660:4406:7a0:602:1::20",
-      "kavlan-18": "2001:660:4406:8a0:602:1::20",
-      "kavlan-2": "2001:660:4406:681:2:1::20",
-      "kavlan-20": "2001:660:4406:3a0:602:1::20",
-      "kavlan-21": "2001:660:4406:6a0:602:1::20",
-      "kavlan-3": "2001:660:4406:682:2:1::20",
-      "kavlan-4": "2001:660:4406:690:2:1::20",
-      "kavlan-5": "2001:660:4406:691:2:1::20",
-      "kavlan-6": "2001:660:4406:692:2:1::20",
-      "kavlan-7": "2001:660:4406:693:2:1::20",
-      "kavlan-8": "2001:660:4406:694:2:1::20",
-      "kavlan-9": "2001:660:4406:695:2:1::20"
+      "kavlan-1": "2001:660:4406:680:2:1:0:20",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:20",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:20",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:20",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:20",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:20",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:20",
+      "kavlan-2": "2001:660:4406:681:2:1:0:20",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:20",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:20",
+      "kavlan-3": "2001:660:4406:682:2:1:0:20",
+      "kavlan-4": "2001:660:4406:690:2:1:0:20",
+      "kavlan-5": "2001:660:4406:691:2:1:0:20",
+      "kavlan-6": "2001:660:4406:692:2:1:0:20",
+      "kavlan-7": "2001:660:4406:693:2:1:0:20",
+      "kavlan-8": "2001:660:4406:694:2:1:0:20",
+      "kavlan-9": "2001:660:4406:695:2:1:0:20"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.32",
-      "ip6": "2001:660:4406:600:2:0::20",
+      "ip6": "2001:660:4406:600:2::20",
       "kavlan": true,
       "mac": "24:6e:96:6a:d6:08",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.32",
-      "ip6": "2001:660:4406:600:2:1::20",
+      "ip6": "2001:660:4406:600:2:1:0:20",
       "kavlan": true,
       "mac": "24:6e:96:6a:d6:0a",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-33.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-33.json
index e34f46a47a2c98cc05a0f00e029defd91372abe4..89ec91f91e1839928b498c7ea49a56718527e97f 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-33.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-33.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::21",
-      "kavlan-11": "2001:660:4406:1a0:602:0::21",
-      "kavlan-12": "2001:660:4406:2a0:602:0::21",
-      "kavlan-13": "2001:660:4406:4a0:602:0::21",
-      "kavlan-14": "2001:660:4406:5a0:602:0::21",
-      "kavlan-16": "2001:660:4406:7a0:602:0::21",
-      "kavlan-18": "2001:660:4406:8a0:602:0::21",
-      "kavlan-2": "2001:660:4406:681:2:0::21",
-      "kavlan-20": "2001:660:4406:3a0:602:0::21",
-      "kavlan-21": "2001:660:4406:6a0:602:0::21",
-      "kavlan-3": "2001:660:4406:682:2:0::21",
-      "kavlan-4": "2001:660:4406:690:2:0::21",
-      "kavlan-5": "2001:660:4406:691:2:0::21",
-      "kavlan-6": "2001:660:4406:692:2:0::21",
-      "kavlan-7": "2001:660:4406:693:2:0::21",
-      "kavlan-8": "2001:660:4406:694:2:0::21",
-      "kavlan-9": "2001:660:4406:695:2:0::21"
+      "kavlan-1": "2001:660:4406:680:2::21",
+      "kavlan-11": "2001:660:4406:1a0:602::21",
+      "kavlan-12": "2001:660:4406:2a0:602::21",
+      "kavlan-13": "2001:660:4406:4a0:602::21",
+      "kavlan-14": "2001:660:4406:5a0:602::21",
+      "kavlan-16": "2001:660:4406:7a0:602::21",
+      "kavlan-18": "2001:660:4406:8a0:602::21",
+      "kavlan-2": "2001:660:4406:681:2::21",
+      "kavlan-20": "2001:660:4406:3a0:602::21",
+      "kavlan-21": "2001:660:4406:6a0:602::21",
+      "kavlan-3": "2001:660:4406:682:2::21",
+      "kavlan-4": "2001:660:4406:690:2::21",
+      "kavlan-5": "2001:660:4406:691:2::21",
+      "kavlan-6": "2001:660:4406:692:2::21",
+      "kavlan-7": "2001:660:4406:693:2::21",
+      "kavlan-8": "2001:660:4406:694:2::21",
+      "kavlan-9": "2001:660:4406:695:2::21"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::21",
-      "kavlan-11": "2001:660:4406:1a0:602:1::21",
-      "kavlan-12": "2001:660:4406:2a0:602:1::21",
-      "kavlan-13": "2001:660:4406:4a0:602:1::21",
-      "kavlan-14": "2001:660:4406:5a0:602:1::21",
-      "kavlan-16": "2001:660:4406:7a0:602:1::21",
-      "kavlan-18": "2001:660:4406:8a0:602:1::21",
-      "kavlan-2": "2001:660:4406:681:2:1::21",
-      "kavlan-20": "2001:660:4406:3a0:602:1::21",
-      "kavlan-21": "2001:660:4406:6a0:602:1::21",
-      "kavlan-3": "2001:660:4406:682:2:1::21",
-      "kavlan-4": "2001:660:4406:690:2:1::21",
-      "kavlan-5": "2001:660:4406:691:2:1::21",
-      "kavlan-6": "2001:660:4406:692:2:1::21",
-      "kavlan-7": "2001:660:4406:693:2:1::21",
-      "kavlan-8": "2001:660:4406:694:2:1::21",
-      "kavlan-9": "2001:660:4406:695:2:1::21"
+      "kavlan-1": "2001:660:4406:680:2:1:0:21",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:21",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:21",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:21",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:21",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:21",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:21",
+      "kavlan-2": "2001:660:4406:681:2:1:0:21",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:21",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:21",
+      "kavlan-3": "2001:660:4406:682:2:1:0:21",
+      "kavlan-4": "2001:660:4406:690:2:1:0:21",
+      "kavlan-5": "2001:660:4406:691:2:1:0:21",
+      "kavlan-6": "2001:660:4406:692:2:1:0:21",
+      "kavlan-7": "2001:660:4406:693:2:1:0:21",
+      "kavlan-8": "2001:660:4406:694:2:1:0:21",
+      "kavlan-9": "2001:660:4406:695:2:1:0:21"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.33",
-      "ip6": "2001:660:4406:600:2:0::21",
+      "ip6": "2001:660:4406:600:2::21",
       "kavlan": true,
       "mac": "24:6e:96:6a:4e:88",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.33",
-      "ip6": "2001:660:4406:600:2:1::21",
+      "ip6": "2001:660:4406:600:2:1:0:21",
       "kavlan": true,
       "mac": "24:6e:96:6a:4e:8a",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-34.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-34.json
index 82aa75aaa41eee1dab744a12728609f1199dbe8b..2bf1d957c1ee2089a4569bea5414307034a9e23d 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-34.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-34.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::22",
-      "kavlan-11": "2001:660:4406:1a0:602:0::22",
-      "kavlan-12": "2001:660:4406:2a0:602:0::22",
-      "kavlan-13": "2001:660:4406:4a0:602:0::22",
-      "kavlan-14": "2001:660:4406:5a0:602:0::22",
-      "kavlan-16": "2001:660:4406:7a0:602:0::22",
-      "kavlan-18": "2001:660:4406:8a0:602:0::22",
-      "kavlan-2": "2001:660:4406:681:2:0::22",
-      "kavlan-20": "2001:660:4406:3a0:602:0::22",
-      "kavlan-21": "2001:660:4406:6a0:602:0::22",
-      "kavlan-3": "2001:660:4406:682:2:0::22",
-      "kavlan-4": "2001:660:4406:690:2:0::22",
-      "kavlan-5": "2001:660:4406:691:2:0::22",
-      "kavlan-6": "2001:660:4406:692:2:0::22",
-      "kavlan-7": "2001:660:4406:693:2:0::22",
-      "kavlan-8": "2001:660:4406:694:2:0::22",
-      "kavlan-9": "2001:660:4406:695:2:0::22"
+      "kavlan-1": "2001:660:4406:680:2::22",
+      "kavlan-11": "2001:660:4406:1a0:602::22",
+      "kavlan-12": "2001:660:4406:2a0:602::22",
+      "kavlan-13": "2001:660:4406:4a0:602::22",
+      "kavlan-14": "2001:660:4406:5a0:602::22",
+      "kavlan-16": "2001:660:4406:7a0:602::22",
+      "kavlan-18": "2001:660:4406:8a0:602::22",
+      "kavlan-2": "2001:660:4406:681:2::22",
+      "kavlan-20": "2001:660:4406:3a0:602::22",
+      "kavlan-21": "2001:660:4406:6a0:602::22",
+      "kavlan-3": "2001:660:4406:682:2::22",
+      "kavlan-4": "2001:660:4406:690:2::22",
+      "kavlan-5": "2001:660:4406:691:2::22",
+      "kavlan-6": "2001:660:4406:692:2::22",
+      "kavlan-7": "2001:660:4406:693:2::22",
+      "kavlan-8": "2001:660:4406:694:2::22",
+      "kavlan-9": "2001:660:4406:695:2::22"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::22",
-      "kavlan-11": "2001:660:4406:1a0:602:1::22",
-      "kavlan-12": "2001:660:4406:2a0:602:1::22",
-      "kavlan-13": "2001:660:4406:4a0:602:1::22",
-      "kavlan-14": "2001:660:4406:5a0:602:1::22",
-      "kavlan-16": "2001:660:4406:7a0:602:1::22",
-      "kavlan-18": "2001:660:4406:8a0:602:1::22",
-      "kavlan-2": "2001:660:4406:681:2:1::22",
-      "kavlan-20": "2001:660:4406:3a0:602:1::22",
-      "kavlan-21": "2001:660:4406:6a0:602:1::22",
-      "kavlan-3": "2001:660:4406:682:2:1::22",
-      "kavlan-4": "2001:660:4406:690:2:1::22",
-      "kavlan-5": "2001:660:4406:691:2:1::22",
-      "kavlan-6": "2001:660:4406:692:2:1::22",
-      "kavlan-7": "2001:660:4406:693:2:1::22",
-      "kavlan-8": "2001:660:4406:694:2:1::22",
-      "kavlan-9": "2001:660:4406:695:2:1::22"
+      "kavlan-1": "2001:660:4406:680:2:1:0:22",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:22",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:22",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:22",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:22",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:22",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:22",
+      "kavlan-2": "2001:660:4406:681:2:1:0:22",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:22",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:22",
+      "kavlan-3": "2001:660:4406:682:2:1:0:22",
+      "kavlan-4": "2001:660:4406:690:2:1:0:22",
+      "kavlan-5": "2001:660:4406:691:2:1:0:22",
+      "kavlan-6": "2001:660:4406:692:2:1:0:22",
+      "kavlan-7": "2001:660:4406:693:2:1:0:22",
+      "kavlan-8": "2001:660:4406:694:2:1:0:22",
+      "kavlan-9": "2001:660:4406:695:2:1:0:22"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.34",
-      "ip6": "2001:660:4406:600:2:0::22",
+      "ip6": "2001:660:4406:600:2::22",
       "kavlan": true,
       "mac": "24:6e:96:6a:c9:48",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.34",
-      "ip6": "2001:660:4406:600:2:1::22",
+      "ip6": "2001:660:4406:600:2:1:0:22",
       "kavlan": true,
       "mac": "24:6e:96:6a:c9:4a",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-35.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-35.json
index b5a944e4913fcd936ca184d455b9d7336cb24bcd..7010479c551278e9be6139143edfd57a3142ef7c 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-35.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-35.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::23",
-      "kavlan-11": "2001:660:4406:1a0:602:0::23",
-      "kavlan-12": "2001:660:4406:2a0:602:0::23",
-      "kavlan-13": "2001:660:4406:4a0:602:0::23",
-      "kavlan-14": "2001:660:4406:5a0:602:0::23",
-      "kavlan-16": "2001:660:4406:7a0:602:0::23",
-      "kavlan-18": "2001:660:4406:8a0:602:0::23",
-      "kavlan-2": "2001:660:4406:681:2:0::23",
-      "kavlan-20": "2001:660:4406:3a0:602:0::23",
-      "kavlan-21": "2001:660:4406:6a0:602:0::23",
-      "kavlan-3": "2001:660:4406:682:2:0::23",
-      "kavlan-4": "2001:660:4406:690:2:0::23",
-      "kavlan-5": "2001:660:4406:691:2:0::23",
-      "kavlan-6": "2001:660:4406:692:2:0::23",
-      "kavlan-7": "2001:660:4406:693:2:0::23",
-      "kavlan-8": "2001:660:4406:694:2:0::23",
-      "kavlan-9": "2001:660:4406:695:2:0::23"
+      "kavlan-1": "2001:660:4406:680:2::23",
+      "kavlan-11": "2001:660:4406:1a0:602::23",
+      "kavlan-12": "2001:660:4406:2a0:602::23",
+      "kavlan-13": "2001:660:4406:4a0:602::23",
+      "kavlan-14": "2001:660:4406:5a0:602::23",
+      "kavlan-16": "2001:660:4406:7a0:602::23",
+      "kavlan-18": "2001:660:4406:8a0:602::23",
+      "kavlan-2": "2001:660:4406:681:2::23",
+      "kavlan-20": "2001:660:4406:3a0:602::23",
+      "kavlan-21": "2001:660:4406:6a0:602::23",
+      "kavlan-3": "2001:660:4406:682:2::23",
+      "kavlan-4": "2001:660:4406:690:2::23",
+      "kavlan-5": "2001:660:4406:691:2::23",
+      "kavlan-6": "2001:660:4406:692:2::23",
+      "kavlan-7": "2001:660:4406:693:2::23",
+      "kavlan-8": "2001:660:4406:694:2::23",
+      "kavlan-9": "2001:660:4406:695:2::23"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::23",
-      "kavlan-11": "2001:660:4406:1a0:602:1::23",
-      "kavlan-12": "2001:660:4406:2a0:602:1::23",
-      "kavlan-13": "2001:660:4406:4a0:602:1::23",
-      "kavlan-14": "2001:660:4406:5a0:602:1::23",
-      "kavlan-16": "2001:660:4406:7a0:602:1::23",
-      "kavlan-18": "2001:660:4406:8a0:602:1::23",
-      "kavlan-2": "2001:660:4406:681:2:1::23",
-      "kavlan-20": "2001:660:4406:3a0:602:1::23",
-      "kavlan-21": "2001:660:4406:6a0:602:1::23",
-      "kavlan-3": "2001:660:4406:682:2:1::23",
-      "kavlan-4": "2001:660:4406:690:2:1::23",
-      "kavlan-5": "2001:660:4406:691:2:1::23",
-      "kavlan-6": "2001:660:4406:692:2:1::23",
-      "kavlan-7": "2001:660:4406:693:2:1::23",
-      "kavlan-8": "2001:660:4406:694:2:1::23",
-      "kavlan-9": "2001:660:4406:695:2:1::23"
+      "kavlan-1": "2001:660:4406:680:2:1:0:23",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:23",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:23",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:23",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:23",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:23",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:23",
+      "kavlan-2": "2001:660:4406:681:2:1:0:23",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:23",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:23",
+      "kavlan-3": "2001:660:4406:682:2:1:0:23",
+      "kavlan-4": "2001:660:4406:690:2:1:0:23",
+      "kavlan-5": "2001:660:4406:691:2:1:0:23",
+      "kavlan-6": "2001:660:4406:692:2:1:0:23",
+      "kavlan-7": "2001:660:4406:693:2:1:0:23",
+      "kavlan-8": "2001:660:4406:694:2:1:0:23",
+      "kavlan-9": "2001:660:4406:695:2:1:0:23"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.35",
-      "ip6": "2001:660:4406:600:2:0::23",
+      "ip6": "2001:660:4406:600:2::23",
       "kavlan": true,
       "mac": "24:6e:96:6a:d1:20",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.35",
-      "ip6": "2001:660:4406:600:2:1::23",
+      "ip6": "2001:660:4406:600:2:1:0:23",
       "kavlan": true,
       "mac": "24:6e:96:6a:d1:22",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-36.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-36.json
index 4667fd72bcad3627406c945999b519c7b6a5d0c1..9f25d024dda0a993e775c92c164010cbd7ab61ff 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-36.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-36.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::24",
-      "kavlan-11": "2001:660:4406:1a0:602:0::24",
-      "kavlan-12": "2001:660:4406:2a0:602:0::24",
-      "kavlan-13": "2001:660:4406:4a0:602:0::24",
-      "kavlan-14": "2001:660:4406:5a0:602:0::24",
-      "kavlan-16": "2001:660:4406:7a0:602:0::24",
-      "kavlan-18": "2001:660:4406:8a0:602:0::24",
-      "kavlan-2": "2001:660:4406:681:2:0::24",
-      "kavlan-20": "2001:660:4406:3a0:602:0::24",
-      "kavlan-21": "2001:660:4406:6a0:602:0::24",
-      "kavlan-3": "2001:660:4406:682:2:0::24",
-      "kavlan-4": "2001:660:4406:690:2:0::24",
-      "kavlan-5": "2001:660:4406:691:2:0::24",
-      "kavlan-6": "2001:660:4406:692:2:0::24",
-      "kavlan-7": "2001:660:4406:693:2:0::24",
-      "kavlan-8": "2001:660:4406:694:2:0::24",
-      "kavlan-9": "2001:660:4406:695:2:0::24"
+      "kavlan-1": "2001:660:4406:680:2::24",
+      "kavlan-11": "2001:660:4406:1a0:602::24",
+      "kavlan-12": "2001:660:4406:2a0:602::24",
+      "kavlan-13": "2001:660:4406:4a0:602::24",
+      "kavlan-14": "2001:660:4406:5a0:602::24",
+      "kavlan-16": "2001:660:4406:7a0:602::24",
+      "kavlan-18": "2001:660:4406:8a0:602::24",
+      "kavlan-2": "2001:660:4406:681:2::24",
+      "kavlan-20": "2001:660:4406:3a0:602::24",
+      "kavlan-21": "2001:660:4406:6a0:602::24",
+      "kavlan-3": "2001:660:4406:682:2::24",
+      "kavlan-4": "2001:660:4406:690:2::24",
+      "kavlan-5": "2001:660:4406:691:2::24",
+      "kavlan-6": "2001:660:4406:692:2::24",
+      "kavlan-7": "2001:660:4406:693:2::24",
+      "kavlan-8": "2001:660:4406:694:2::24",
+      "kavlan-9": "2001:660:4406:695:2::24"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::24",
-      "kavlan-11": "2001:660:4406:1a0:602:1::24",
-      "kavlan-12": "2001:660:4406:2a0:602:1::24",
-      "kavlan-13": "2001:660:4406:4a0:602:1::24",
-      "kavlan-14": "2001:660:4406:5a0:602:1::24",
-      "kavlan-16": "2001:660:4406:7a0:602:1::24",
-      "kavlan-18": "2001:660:4406:8a0:602:1::24",
-      "kavlan-2": "2001:660:4406:681:2:1::24",
-      "kavlan-20": "2001:660:4406:3a0:602:1::24",
-      "kavlan-21": "2001:660:4406:6a0:602:1::24",
-      "kavlan-3": "2001:660:4406:682:2:1::24",
-      "kavlan-4": "2001:660:4406:690:2:1::24",
-      "kavlan-5": "2001:660:4406:691:2:1::24",
-      "kavlan-6": "2001:660:4406:692:2:1::24",
-      "kavlan-7": "2001:660:4406:693:2:1::24",
-      "kavlan-8": "2001:660:4406:694:2:1::24",
-      "kavlan-9": "2001:660:4406:695:2:1::24"
+      "kavlan-1": "2001:660:4406:680:2:1:0:24",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:24",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:24",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:24",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:24",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:24",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:24",
+      "kavlan-2": "2001:660:4406:681:2:1:0:24",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:24",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:24",
+      "kavlan-3": "2001:660:4406:682:2:1:0:24",
+      "kavlan-4": "2001:660:4406:690:2:1:0:24",
+      "kavlan-5": "2001:660:4406:691:2:1:0:24",
+      "kavlan-6": "2001:660:4406:692:2:1:0:24",
+      "kavlan-7": "2001:660:4406:693:2:1:0:24",
+      "kavlan-8": "2001:660:4406:694:2:1:0:24",
+      "kavlan-9": "2001:660:4406:695:2:1:0:24"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.36",
-      "ip6": "2001:660:4406:600:2:0::24",
+      "ip6": "2001:660:4406:600:2::24",
       "kavlan": true,
       "mac": "24:6e:96:6a:56:60",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.36",
-      "ip6": "2001:660:4406:600:2:1::24",
+      "ip6": "2001:660:4406:600:2:1:0:24",
       "kavlan": true,
       "mac": "24:6e:96:6a:56:62",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-37.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-37.json
index 6c1b9b5d991d83219dd203c762bcd074f40083a3..dc8f22a8c308daabb4fb7a3cd55d3469fb397a01 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-37.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-37.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::25",
-      "kavlan-11": "2001:660:4406:1a0:602:0::25",
-      "kavlan-12": "2001:660:4406:2a0:602:0::25",
-      "kavlan-13": "2001:660:4406:4a0:602:0::25",
-      "kavlan-14": "2001:660:4406:5a0:602:0::25",
-      "kavlan-16": "2001:660:4406:7a0:602:0::25",
-      "kavlan-18": "2001:660:4406:8a0:602:0::25",
-      "kavlan-2": "2001:660:4406:681:2:0::25",
-      "kavlan-20": "2001:660:4406:3a0:602:0::25",
-      "kavlan-21": "2001:660:4406:6a0:602:0::25",
-      "kavlan-3": "2001:660:4406:682:2:0::25",
-      "kavlan-4": "2001:660:4406:690:2:0::25",
-      "kavlan-5": "2001:660:4406:691:2:0::25",
-      "kavlan-6": "2001:660:4406:692:2:0::25",
-      "kavlan-7": "2001:660:4406:693:2:0::25",
-      "kavlan-8": "2001:660:4406:694:2:0::25",
-      "kavlan-9": "2001:660:4406:695:2:0::25"
+      "kavlan-1": "2001:660:4406:680:2::25",
+      "kavlan-11": "2001:660:4406:1a0:602::25",
+      "kavlan-12": "2001:660:4406:2a0:602::25",
+      "kavlan-13": "2001:660:4406:4a0:602::25",
+      "kavlan-14": "2001:660:4406:5a0:602::25",
+      "kavlan-16": "2001:660:4406:7a0:602::25",
+      "kavlan-18": "2001:660:4406:8a0:602::25",
+      "kavlan-2": "2001:660:4406:681:2::25",
+      "kavlan-20": "2001:660:4406:3a0:602::25",
+      "kavlan-21": "2001:660:4406:6a0:602::25",
+      "kavlan-3": "2001:660:4406:682:2::25",
+      "kavlan-4": "2001:660:4406:690:2::25",
+      "kavlan-5": "2001:660:4406:691:2::25",
+      "kavlan-6": "2001:660:4406:692:2::25",
+      "kavlan-7": "2001:660:4406:693:2::25",
+      "kavlan-8": "2001:660:4406:694:2::25",
+      "kavlan-9": "2001:660:4406:695:2::25"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::25",
-      "kavlan-11": "2001:660:4406:1a0:602:1::25",
-      "kavlan-12": "2001:660:4406:2a0:602:1::25",
-      "kavlan-13": "2001:660:4406:4a0:602:1::25",
-      "kavlan-14": "2001:660:4406:5a0:602:1::25",
-      "kavlan-16": "2001:660:4406:7a0:602:1::25",
-      "kavlan-18": "2001:660:4406:8a0:602:1::25",
-      "kavlan-2": "2001:660:4406:681:2:1::25",
-      "kavlan-20": "2001:660:4406:3a0:602:1::25",
-      "kavlan-21": "2001:660:4406:6a0:602:1::25",
-      "kavlan-3": "2001:660:4406:682:2:1::25",
-      "kavlan-4": "2001:660:4406:690:2:1::25",
-      "kavlan-5": "2001:660:4406:691:2:1::25",
-      "kavlan-6": "2001:660:4406:692:2:1::25",
-      "kavlan-7": "2001:660:4406:693:2:1::25",
-      "kavlan-8": "2001:660:4406:694:2:1::25",
-      "kavlan-9": "2001:660:4406:695:2:1::25"
+      "kavlan-1": "2001:660:4406:680:2:1:0:25",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:25",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:25",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:25",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:25",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:25",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:25",
+      "kavlan-2": "2001:660:4406:681:2:1:0:25",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:25",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:25",
+      "kavlan-3": "2001:660:4406:682:2:1:0:25",
+      "kavlan-4": "2001:660:4406:690:2:1:0:25",
+      "kavlan-5": "2001:660:4406:691:2:1:0:25",
+      "kavlan-6": "2001:660:4406:692:2:1:0:25",
+      "kavlan-7": "2001:660:4406:693:2:1:0:25",
+      "kavlan-8": "2001:660:4406:694:2:1:0:25",
+      "kavlan-9": "2001:660:4406:695:2:1:0:25"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.37",
-      "ip6": "2001:660:4406:600:2:0::25",
+      "ip6": "2001:660:4406:600:2::25",
       "kavlan": true,
       "mac": "24:6e:96:6a:cc:d0",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.37",
-      "ip6": "2001:660:4406:600:2:1::25",
+      "ip6": "2001:660:4406:600:2:1:0:25",
       "kavlan": true,
       "mac": "24:6e:96:6a:cc:d2",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-38.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-38.json
index 67ef40e826344f5cc767ed3ec633c8c3d85a49cb..9513466e3651a8fc8d0dd7500f7abda30412f7cd 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-38.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-38.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::26",
-      "kavlan-11": "2001:660:4406:1a0:602:0::26",
-      "kavlan-12": "2001:660:4406:2a0:602:0::26",
-      "kavlan-13": "2001:660:4406:4a0:602:0::26",
-      "kavlan-14": "2001:660:4406:5a0:602:0::26",
-      "kavlan-16": "2001:660:4406:7a0:602:0::26",
-      "kavlan-18": "2001:660:4406:8a0:602:0::26",
-      "kavlan-2": "2001:660:4406:681:2:0::26",
-      "kavlan-20": "2001:660:4406:3a0:602:0::26",
-      "kavlan-21": "2001:660:4406:6a0:602:0::26",
-      "kavlan-3": "2001:660:4406:682:2:0::26",
-      "kavlan-4": "2001:660:4406:690:2:0::26",
-      "kavlan-5": "2001:660:4406:691:2:0::26",
-      "kavlan-6": "2001:660:4406:692:2:0::26",
-      "kavlan-7": "2001:660:4406:693:2:0::26",
-      "kavlan-8": "2001:660:4406:694:2:0::26",
-      "kavlan-9": "2001:660:4406:695:2:0::26"
+      "kavlan-1": "2001:660:4406:680:2::26",
+      "kavlan-11": "2001:660:4406:1a0:602::26",
+      "kavlan-12": "2001:660:4406:2a0:602::26",
+      "kavlan-13": "2001:660:4406:4a0:602::26",
+      "kavlan-14": "2001:660:4406:5a0:602::26",
+      "kavlan-16": "2001:660:4406:7a0:602::26",
+      "kavlan-18": "2001:660:4406:8a0:602::26",
+      "kavlan-2": "2001:660:4406:681:2::26",
+      "kavlan-20": "2001:660:4406:3a0:602::26",
+      "kavlan-21": "2001:660:4406:6a0:602::26",
+      "kavlan-3": "2001:660:4406:682:2::26",
+      "kavlan-4": "2001:660:4406:690:2::26",
+      "kavlan-5": "2001:660:4406:691:2::26",
+      "kavlan-6": "2001:660:4406:692:2::26",
+      "kavlan-7": "2001:660:4406:693:2::26",
+      "kavlan-8": "2001:660:4406:694:2::26",
+      "kavlan-9": "2001:660:4406:695:2::26"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::26",
-      "kavlan-11": "2001:660:4406:1a0:602:1::26",
-      "kavlan-12": "2001:660:4406:2a0:602:1::26",
-      "kavlan-13": "2001:660:4406:4a0:602:1::26",
-      "kavlan-14": "2001:660:4406:5a0:602:1::26",
-      "kavlan-16": "2001:660:4406:7a0:602:1::26",
-      "kavlan-18": "2001:660:4406:8a0:602:1::26",
-      "kavlan-2": "2001:660:4406:681:2:1::26",
-      "kavlan-20": "2001:660:4406:3a0:602:1::26",
-      "kavlan-21": "2001:660:4406:6a0:602:1::26",
-      "kavlan-3": "2001:660:4406:682:2:1::26",
-      "kavlan-4": "2001:660:4406:690:2:1::26",
-      "kavlan-5": "2001:660:4406:691:2:1::26",
-      "kavlan-6": "2001:660:4406:692:2:1::26",
-      "kavlan-7": "2001:660:4406:693:2:1::26",
-      "kavlan-8": "2001:660:4406:694:2:1::26",
-      "kavlan-9": "2001:660:4406:695:2:1::26"
+      "kavlan-1": "2001:660:4406:680:2:1:0:26",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:26",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:26",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:26",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:26",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:26",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:26",
+      "kavlan-2": "2001:660:4406:681:2:1:0:26",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:26",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:26",
+      "kavlan-3": "2001:660:4406:682:2:1:0:26",
+      "kavlan-4": "2001:660:4406:690:2:1:0:26",
+      "kavlan-5": "2001:660:4406:691:2:1:0:26",
+      "kavlan-6": "2001:660:4406:692:2:1:0:26",
+      "kavlan-7": "2001:660:4406:693:2:1:0:26",
+      "kavlan-8": "2001:660:4406:694:2:1:0:26",
+      "kavlan-9": "2001:660:4406:695:2:1:0:26"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.38",
-      "ip6": "2001:660:4406:600:2:0::26",
+      "ip6": "2001:660:4406:600:2::26",
       "kavlan": true,
       "mac": "24:6e:96:6a:d7:88",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.38",
-      "ip6": "2001:660:4406:600:2:1::26",
+      "ip6": "2001:660:4406:600:2:1:0:26",
       "kavlan": true,
       "mac": "24:6e:96:6a:d7:8a",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-39.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-39.json
index 549dc1eecf9b22aa274fd9ca80604f69e859e72b..a5df482f505c40fc1aedfd96a054eb3820570c15 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-39.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-39.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::27",
-      "kavlan-11": "2001:660:4406:1a0:602:0::27",
-      "kavlan-12": "2001:660:4406:2a0:602:0::27",
-      "kavlan-13": "2001:660:4406:4a0:602:0::27",
-      "kavlan-14": "2001:660:4406:5a0:602:0::27",
-      "kavlan-16": "2001:660:4406:7a0:602:0::27",
-      "kavlan-18": "2001:660:4406:8a0:602:0::27",
-      "kavlan-2": "2001:660:4406:681:2:0::27",
-      "kavlan-20": "2001:660:4406:3a0:602:0::27",
-      "kavlan-21": "2001:660:4406:6a0:602:0::27",
-      "kavlan-3": "2001:660:4406:682:2:0::27",
-      "kavlan-4": "2001:660:4406:690:2:0::27",
-      "kavlan-5": "2001:660:4406:691:2:0::27",
-      "kavlan-6": "2001:660:4406:692:2:0::27",
-      "kavlan-7": "2001:660:4406:693:2:0::27",
-      "kavlan-8": "2001:660:4406:694:2:0::27",
-      "kavlan-9": "2001:660:4406:695:2:0::27"
+      "kavlan-1": "2001:660:4406:680:2::27",
+      "kavlan-11": "2001:660:4406:1a0:602::27",
+      "kavlan-12": "2001:660:4406:2a0:602::27",
+      "kavlan-13": "2001:660:4406:4a0:602::27",
+      "kavlan-14": "2001:660:4406:5a0:602::27",
+      "kavlan-16": "2001:660:4406:7a0:602::27",
+      "kavlan-18": "2001:660:4406:8a0:602::27",
+      "kavlan-2": "2001:660:4406:681:2::27",
+      "kavlan-20": "2001:660:4406:3a0:602::27",
+      "kavlan-21": "2001:660:4406:6a0:602::27",
+      "kavlan-3": "2001:660:4406:682:2::27",
+      "kavlan-4": "2001:660:4406:690:2::27",
+      "kavlan-5": "2001:660:4406:691:2::27",
+      "kavlan-6": "2001:660:4406:692:2::27",
+      "kavlan-7": "2001:660:4406:693:2::27",
+      "kavlan-8": "2001:660:4406:694:2::27",
+      "kavlan-9": "2001:660:4406:695:2::27"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::27",
-      "kavlan-11": "2001:660:4406:1a0:602:1::27",
-      "kavlan-12": "2001:660:4406:2a0:602:1::27",
-      "kavlan-13": "2001:660:4406:4a0:602:1::27",
-      "kavlan-14": "2001:660:4406:5a0:602:1::27",
-      "kavlan-16": "2001:660:4406:7a0:602:1::27",
-      "kavlan-18": "2001:660:4406:8a0:602:1::27",
-      "kavlan-2": "2001:660:4406:681:2:1::27",
-      "kavlan-20": "2001:660:4406:3a0:602:1::27",
-      "kavlan-21": "2001:660:4406:6a0:602:1::27",
-      "kavlan-3": "2001:660:4406:682:2:1::27",
-      "kavlan-4": "2001:660:4406:690:2:1::27",
-      "kavlan-5": "2001:660:4406:691:2:1::27",
-      "kavlan-6": "2001:660:4406:692:2:1::27",
-      "kavlan-7": "2001:660:4406:693:2:1::27",
-      "kavlan-8": "2001:660:4406:694:2:1::27",
-      "kavlan-9": "2001:660:4406:695:2:1::27"
+      "kavlan-1": "2001:660:4406:680:2:1:0:27",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:27",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:27",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:27",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:27",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:27",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:27",
+      "kavlan-2": "2001:660:4406:681:2:1:0:27",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:27",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:27",
+      "kavlan-3": "2001:660:4406:682:2:1:0:27",
+      "kavlan-4": "2001:660:4406:690:2:1:0:27",
+      "kavlan-5": "2001:660:4406:691:2:1:0:27",
+      "kavlan-6": "2001:660:4406:692:2:1:0:27",
+      "kavlan-7": "2001:660:4406:693:2:1:0:27",
+      "kavlan-8": "2001:660:4406:694:2:1:0:27",
+      "kavlan-9": "2001:660:4406:695:2:1:0:27"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.39",
-      "ip6": "2001:660:4406:600:2:0::27",
+      "ip6": "2001:660:4406:600:2::27",
       "kavlan": true,
       "mac": "24:6e:96:6a:d1:18",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.39",
-      "ip6": "2001:660:4406:600:2:1::27",
+      "ip6": "2001:660:4406:600:2:1:0:27",
       "kavlan": true,
       "mac": "24:6e:96:6a:d1:1a",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-4.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-4.json
index b1d525e06539f085a0085f1e335e766b83b9080f..ccf413690b69164dbd6f34a70b56b8ed706f1597 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-4.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-4.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::4",
-      "kavlan-11": "2001:660:4406:1a0:602:0::4",
-      "kavlan-12": "2001:660:4406:2a0:602:0::4",
-      "kavlan-13": "2001:660:4406:4a0:602:0::4",
-      "kavlan-14": "2001:660:4406:5a0:602:0::4",
-      "kavlan-16": "2001:660:4406:7a0:602:0::4",
-      "kavlan-18": "2001:660:4406:8a0:602:0::4",
-      "kavlan-2": "2001:660:4406:681:2:0::4",
-      "kavlan-20": "2001:660:4406:3a0:602:0::4",
-      "kavlan-21": "2001:660:4406:6a0:602:0::4",
-      "kavlan-3": "2001:660:4406:682:2:0::4",
-      "kavlan-4": "2001:660:4406:690:2:0::4",
-      "kavlan-5": "2001:660:4406:691:2:0::4",
-      "kavlan-6": "2001:660:4406:692:2:0::4",
-      "kavlan-7": "2001:660:4406:693:2:0::4",
-      "kavlan-8": "2001:660:4406:694:2:0::4",
-      "kavlan-9": "2001:660:4406:695:2:0::4"
+      "kavlan-1": "2001:660:4406:680:2::4",
+      "kavlan-11": "2001:660:4406:1a0:602::4",
+      "kavlan-12": "2001:660:4406:2a0:602::4",
+      "kavlan-13": "2001:660:4406:4a0:602::4",
+      "kavlan-14": "2001:660:4406:5a0:602::4",
+      "kavlan-16": "2001:660:4406:7a0:602::4",
+      "kavlan-18": "2001:660:4406:8a0:602::4",
+      "kavlan-2": "2001:660:4406:681:2::4",
+      "kavlan-20": "2001:660:4406:3a0:602::4",
+      "kavlan-21": "2001:660:4406:6a0:602::4",
+      "kavlan-3": "2001:660:4406:682:2::4",
+      "kavlan-4": "2001:660:4406:690:2::4",
+      "kavlan-5": "2001:660:4406:691:2::4",
+      "kavlan-6": "2001:660:4406:692:2::4",
+      "kavlan-7": "2001:660:4406:693:2::4",
+      "kavlan-8": "2001:660:4406:694:2::4",
+      "kavlan-9": "2001:660:4406:695:2::4"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::4",
-      "kavlan-11": "2001:660:4406:1a0:602:1::4",
-      "kavlan-12": "2001:660:4406:2a0:602:1::4",
-      "kavlan-13": "2001:660:4406:4a0:602:1::4",
-      "kavlan-14": "2001:660:4406:5a0:602:1::4",
-      "kavlan-16": "2001:660:4406:7a0:602:1::4",
-      "kavlan-18": "2001:660:4406:8a0:602:1::4",
-      "kavlan-2": "2001:660:4406:681:2:1::4",
-      "kavlan-20": "2001:660:4406:3a0:602:1::4",
-      "kavlan-21": "2001:660:4406:6a0:602:1::4",
-      "kavlan-3": "2001:660:4406:682:2:1::4",
-      "kavlan-4": "2001:660:4406:690:2:1::4",
-      "kavlan-5": "2001:660:4406:691:2:1::4",
-      "kavlan-6": "2001:660:4406:692:2:1::4",
-      "kavlan-7": "2001:660:4406:693:2:1::4",
-      "kavlan-8": "2001:660:4406:694:2:1::4",
-      "kavlan-9": "2001:660:4406:695:2:1::4"
+      "kavlan-1": "2001:660:4406:680:2:1:0:4",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:4",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:4",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:4",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:4",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:4",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:4",
+      "kavlan-2": "2001:660:4406:681:2:1:0:4",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:4",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:4",
+      "kavlan-3": "2001:660:4406:682:2:1:0:4",
+      "kavlan-4": "2001:660:4406:690:2:1:0:4",
+      "kavlan-5": "2001:660:4406:691:2:1:0:4",
+      "kavlan-6": "2001:660:4406:692:2:1:0:4",
+      "kavlan-7": "2001:660:4406:693:2:1:0:4",
+      "kavlan-8": "2001:660:4406:694:2:1:0:4",
+      "kavlan-9": "2001:660:4406:695:2:1:0:4"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.4",
-      "ip6": "2001:660:4406:600:2:0::4",
+      "ip6": "2001:660:4406:600:2::4",
       "kavlan": true,
       "mac": "24:6e:96:6a:d7:08",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.4",
-      "ip6": "2001:660:4406:600:2:1::4",
+      "ip6": "2001:660:4406:600:2:1:0:4",
       "kavlan": true,
       "mac": "24:6e:96:6a:d7:0a",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-40.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-40.json
index e9db1aad4921af321d37577ba7341765b1524203..03733278acc757bec931b98a58650647bb10e650 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-40.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-40.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::28",
-      "kavlan-11": "2001:660:4406:1a0:602:0::28",
-      "kavlan-12": "2001:660:4406:2a0:602:0::28",
-      "kavlan-13": "2001:660:4406:4a0:602:0::28",
-      "kavlan-14": "2001:660:4406:5a0:602:0::28",
-      "kavlan-16": "2001:660:4406:7a0:602:0::28",
-      "kavlan-18": "2001:660:4406:8a0:602:0::28",
-      "kavlan-2": "2001:660:4406:681:2:0::28",
-      "kavlan-20": "2001:660:4406:3a0:602:0::28",
-      "kavlan-21": "2001:660:4406:6a0:602:0::28",
-      "kavlan-3": "2001:660:4406:682:2:0::28",
-      "kavlan-4": "2001:660:4406:690:2:0::28",
-      "kavlan-5": "2001:660:4406:691:2:0::28",
-      "kavlan-6": "2001:660:4406:692:2:0::28",
-      "kavlan-7": "2001:660:4406:693:2:0::28",
-      "kavlan-8": "2001:660:4406:694:2:0::28",
-      "kavlan-9": "2001:660:4406:695:2:0::28"
+      "kavlan-1": "2001:660:4406:680:2::28",
+      "kavlan-11": "2001:660:4406:1a0:602::28",
+      "kavlan-12": "2001:660:4406:2a0:602::28",
+      "kavlan-13": "2001:660:4406:4a0:602::28",
+      "kavlan-14": "2001:660:4406:5a0:602::28",
+      "kavlan-16": "2001:660:4406:7a0:602::28",
+      "kavlan-18": "2001:660:4406:8a0:602::28",
+      "kavlan-2": "2001:660:4406:681:2::28",
+      "kavlan-20": "2001:660:4406:3a0:602::28",
+      "kavlan-21": "2001:660:4406:6a0:602::28",
+      "kavlan-3": "2001:660:4406:682:2::28",
+      "kavlan-4": "2001:660:4406:690:2::28",
+      "kavlan-5": "2001:660:4406:691:2::28",
+      "kavlan-6": "2001:660:4406:692:2::28",
+      "kavlan-7": "2001:660:4406:693:2::28",
+      "kavlan-8": "2001:660:4406:694:2::28",
+      "kavlan-9": "2001:660:4406:695:2::28"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::28",
-      "kavlan-11": "2001:660:4406:1a0:602:1::28",
-      "kavlan-12": "2001:660:4406:2a0:602:1::28",
-      "kavlan-13": "2001:660:4406:4a0:602:1::28",
-      "kavlan-14": "2001:660:4406:5a0:602:1::28",
-      "kavlan-16": "2001:660:4406:7a0:602:1::28",
-      "kavlan-18": "2001:660:4406:8a0:602:1::28",
-      "kavlan-2": "2001:660:4406:681:2:1::28",
-      "kavlan-20": "2001:660:4406:3a0:602:1::28",
-      "kavlan-21": "2001:660:4406:6a0:602:1::28",
-      "kavlan-3": "2001:660:4406:682:2:1::28",
-      "kavlan-4": "2001:660:4406:690:2:1::28",
-      "kavlan-5": "2001:660:4406:691:2:1::28",
-      "kavlan-6": "2001:660:4406:692:2:1::28",
-      "kavlan-7": "2001:660:4406:693:2:1::28",
-      "kavlan-8": "2001:660:4406:694:2:1::28",
-      "kavlan-9": "2001:660:4406:695:2:1::28"
+      "kavlan-1": "2001:660:4406:680:2:1:0:28",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:28",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:28",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:28",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:28",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:28",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:28",
+      "kavlan-2": "2001:660:4406:681:2:1:0:28",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:28",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:28",
+      "kavlan-3": "2001:660:4406:682:2:1:0:28",
+      "kavlan-4": "2001:660:4406:690:2:1:0:28",
+      "kavlan-5": "2001:660:4406:691:2:1:0:28",
+      "kavlan-6": "2001:660:4406:692:2:1:0:28",
+      "kavlan-7": "2001:660:4406:693:2:1:0:28",
+      "kavlan-8": "2001:660:4406:694:2:1:0:28",
+      "kavlan-9": "2001:660:4406:695:2:1:0:28"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.40",
-      "ip6": "2001:660:4406:600:2:0::28",
+      "ip6": "2001:660:4406:600:2::28",
       "kavlan": true,
       "mac": "24:6e:96:6a:4f:20",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.40",
-      "ip6": "2001:660:4406:600:2:1::28",
+      "ip6": "2001:660:4406:600:2:1:0:28",
       "kavlan": true,
       "mac": "24:6e:96:6a:4f:22",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-41.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-41.json
index 89a2cad363f148b674ac86f1c8afb95b0f13be23..3b3e4708b431cfc0e911738281e1bf70beb70a33 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-41.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-41.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::29",
-      "kavlan-11": "2001:660:4406:1a0:602:0::29",
-      "kavlan-12": "2001:660:4406:2a0:602:0::29",
-      "kavlan-13": "2001:660:4406:4a0:602:0::29",
-      "kavlan-14": "2001:660:4406:5a0:602:0::29",
-      "kavlan-16": "2001:660:4406:7a0:602:0::29",
-      "kavlan-18": "2001:660:4406:8a0:602:0::29",
-      "kavlan-2": "2001:660:4406:681:2:0::29",
-      "kavlan-20": "2001:660:4406:3a0:602:0::29",
-      "kavlan-21": "2001:660:4406:6a0:602:0::29",
-      "kavlan-3": "2001:660:4406:682:2:0::29",
-      "kavlan-4": "2001:660:4406:690:2:0::29",
-      "kavlan-5": "2001:660:4406:691:2:0::29",
-      "kavlan-6": "2001:660:4406:692:2:0::29",
-      "kavlan-7": "2001:660:4406:693:2:0::29",
-      "kavlan-8": "2001:660:4406:694:2:0::29",
-      "kavlan-9": "2001:660:4406:695:2:0::29"
+      "kavlan-1": "2001:660:4406:680:2::29",
+      "kavlan-11": "2001:660:4406:1a0:602::29",
+      "kavlan-12": "2001:660:4406:2a0:602::29",
+      "kavlan-13": "2001:660:4406:4a0:602::29",
+      "kavlan-14": "2001:660:4406:5a0:602::29",
+      "kavlan-16": "2001:660:4406:7a0:602::29",
+      "kavlan-18": "2001:660:4406:8a0:602::29",
+      "kavlan-2": "2001:660:4406:681:2::29",
+      "kavlan-20": "2001:660:4406:3a0:602::29",
+      "kavlan-21": "2001:660:4406:6a0:602::29",
+      "kavlan-3": "2001:660:4406:682:2::29",
+      "kavlan-4": "2001:660:4406:690:2::29",
+      "kavlan-5": "2001:660:4406:691:2::29",
+      "kavlan-6": "2001:660:4406:692:2::29",
+      "kavlan-7": "2001:660:4406:693:2::29",
+      "kavlan-8": "2001:660:4406:694:2::29",
+      "kavlan-9": "2001:660:4406:695:2::29"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::29",
-      "kavlan-11": "2001:660:4406:1a0:602:1::29",
-      "kavlan-12": "2001:660:4406:2a0:602:1::29",
-      "kavlan-13": "2001:660:4406:4a0:602:1::29",
-      "kavlan-14": "2001:660:4406:5a0:602:1::29",
-      "kavlan-16": "2001:660:4406:7a0:602:1::29",
-      "kavlan-18": "2001:660:4406:8a0:602:1::29",
-      "kavlan-2": "2001:660:4406:681:2:1::29",
-      "kavlan-20": "2001:660:4406:3a0:602:1::29",
-      "kavlan-21": "2001:660:4406:6a0:602:1::29",
-      "kavlan-3": "2001:660:4406:682:2:1::29",
-      "kavlan-4": "2001:660:4406:690:2:1::29",
-      "kavlan-5": "2001:660:4406:691:2:1::29",
-      "kavlan-6": "2001:660:4406:692:2:1::29",
-      "kavlan-7": "2001:660:4406:693:2:1::29",
-      "kavlan-8": "2001:660:4406:694:2:1::29",
-      "kavlan-9": "2001:660:4406:695:2:1::29"
+      "kavlan-1": "2001:660:4406:680:2:1:0:29",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:29",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:29",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:29",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:29",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:29",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:29",
+      "kavlan-2": "2001:660:4406:681:2:1:0:29",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:29",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:29",
+      "kavlan-3": "2001:660:4406:682:2:1:0:29",
+      "kavlan-4": "2001:660:4406:690:2:1:0:29",
+      "kavlan-5": "2001:660:4406:691:2:1:0:29",
+      "kavlan-6": "2001:660:4406:692:2:1:0:29",
+      "kavlan-7": "2001:660:4406:693:2:1:0:29",
+      "kavlan-8": "2001:660:4406:694:2:1:0:29",
+      "kavlan-9": "2001:660:4406:695:2:1:0:29"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.41",
-      "ip6": "2001:660:4406:600:2:0::29",
+      "ip6": "2001:660:4406:600:2::29",
       "kavlan": true,
       "mac": "24:6e:96:6a:49:08",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.41",
-      "ip6": "2001:660:4406:600:2:1::29",
+      "ip6": "2001:660:4406:600:2:1:0:29",
       "kavlan": true,
       "mac": "24:6e:96:6a:49:0a",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-42.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-42.json
index aa34ede024b50e31391630891c84ff39f79c93cd..1a81601f7a8222547ecf68a0199c637656beb7ad 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-42.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-42.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::2a",
-      "kavlan-11": "2001:660:4406:1a0:602:0::2a",
-      "kavlan-12": "2001:660:4406:2a0:602:0::2a",
-      "kavlan-13": "2001:660:4406:4a0:602:0::2a",
-      "kavlan-14": "2001:660:4406:5a0:602:0::2a",
-      "kavlan-16": "2001:660:4406:7a0:602:0::2a",
-      "kavlan-18": "2001:660:4406:8a0:602:0::2a",
-      "kavlan-2": "2001:660:4406:681:2:0::2a",
-      "kavlan-20": "2001:660:4406:3a0:602:0::2a",
-      "kavlan-21": "2001:660:4406:6a0:602:0::2a",
-      "kavlan-3": "2001:660:4406:682:2:0::2a",
-      "kavlan-4": "2001:660:4406:690:2:0::2a",
-      "kavlan-5": "2001:660:4406:691:2:0::2a",
-      "kavlan-6": "2001:660:4406:692:2:0::2a",
-      "kavlan-7": "2001:660:4406:693:2:0::2a",
-      "kavlan-8": "2001:660:4406:694:2:0::2a",
-      "kavlan-9": "2001:660:4406:695:2:0::2a"
+      "kavlan-1": "2001:660:4406:680:2::2a",
+      "kavlan-11": "2001:660:4406:1a0:602::2a",
+      "kavlan-12": "2001:660:4406:2a0:602::2a",
+      "kavlan-13": "2001:660:4406:4a0:602::2a",
+      "kavlan-14": "2001:660:4406:5a0:602::2a",
+      "kavlan-16": "2001:660:4406:7a0:602::2a",
+      "kavlan-18": "2001:660:4406:8a0:602::2a",
+      "kavlan-2": "2001:660:4406:681:2::2a",
+      "kavlan-20": "2001:660:4406:3a0:602::2a",
+      "kavlan-21": "2001:660:4406:6a0:602::2a",
+      "kavlan-3": "2001:660:4406:682:2::2a",
+      "kavlan-4": "2001:660:4406:690:2::2a",
+      "kavlan-5": "2001:660:4406:691:2::2a",
+      "kavlan-6": "2001:660:4406:692:2::2a",
+      "kavlan-7": "2001:660:4406:693:2::2a",
+      "kavlan-8": "2001:660:4406:694:2::2a",
+      "kavlan-9": "2001:660:4406:695:2::2a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::2a",
-      "kavlan-11": "2001:660:4406:1a0:602:1::2a",
-      "kavlan-12": "2001:660:4406:2a0:602:1::2a",
-      "kavlan-13": "2001:660:4406:4a0:602:1::2a",
-      "kavlan-14": "2001:660:4406:5a0:602:1::2a",
-      "kavlan-16": "2001:660:4406:7a0:602:1::2a",
-      "kavlan-18": "2001:660:4406:8a0:602:1::2a",
-      "kavlan-2": "2001:660:4406:681:2:1::2a",
-      "kavlan-20": "2001:660:4406:3a0:602:1::2a",
-      "kavlan-21": "2001:660:4406:6a0:602:1::2a",
-      "kavlan-3": "2001:660:4406:682:2:1::2a",
-      "kavlan-4": "2001:660:4406:690:2:1::2a",
-      "kavlan-5": "2001:660:4406:691:2:1::2a",
-      "kavlan-6": "2001:660:4406:692:2:1::2a",
-      "kavlan-7": "2001:660:4406:693:2:1::2a",
-      "kavlan-8": "2001:660:4406:694:2:1::2a",
-      "kavlan-9": "2001:660:4406:695:2:1::2a"
+      "kavlan-1": "2001:660:4406:680:2:1:0:2a",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:2a",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:2a",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:2a",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:2a",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:2a",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:2a",
+      "kavlan-2": "2001:660:4406:681:2:1:0:2a",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:2a",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:2a",
+      "kavlan-3": "2001:660:4406:682:2:1:0:2a",
+      "kavlan-4": "2001:660:4406:690:2:1:0:2a",
+      "kavlan-5": "2001:660:4406:691:2:1:0:2a",
+      "kavlan-6": "2001:660:4406:692:2:1:0:2a",
+      "kavlan-7": "2001:660:4406:693:2:1:0:2a",
+      "kavlan-8": "2001:660:4406:694:2:1:0:2a",
+      "kavlan-9": "2001:660:4406:695:2:1:0:2a"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.42",
-      "ip6": "2001:660:4406:600:2:0::2a",
+      "ip6": "2001:660:4406:600:2::2a",
       "kavlan": true,
       "mac": "24:6e:96:6a:4c:e8",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.42",
-      "ip6": "2001:660:4406:600:2:1::2a",
+      "ip6": "2001:660:4406:600:2:1:0:2a",
       "kavlan": true,
       "mac": "24:6e:96:6a:4c:ea",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-43.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-43.json
index f4c5b537c5a24f7dd66b7ca9756d0f39220b4060..660672980d9683194e2b9fc4fe2be3bcbc5b7d45 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-43.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-43.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::2b",
-      "kavlan-11": "2001:660:4406:1a0:602:0::2b",
-      "kavlan-12": "2001:660:4406:2a0:602:0::2b",
-      "kavlan-13": "2001:660:4406:4a0:602:0::2b",
-      "kavlan-14": "2001:660:4406:5a0:602:0::2b",
-      "kavlan-16": "2001:660:4406:7a0:602:0::2b",
-      "kavlan-18": "2001:660:4406:8a0:602:0::2b",
-      "kavlan-2": "2001:660:4406:681:2:0::2b",
-      "kavlan-20": "2001:660:4406:3a0:602:0::2b",
-      "kavlan-21": "2001:660:4406:6a0:602:0::2b",
-      "kavlan-3": "2001:660:4406:682:2:0::2b",
-      "kavlan-4": "2001:660:4406:690:2:0::2b",
-      "kavlan-5": "2001:660:4406:691:2:0::2b",
-      "kavlan-6": "2001:660:4406:692:2:0::2b",
-      "kavlan-7": "2001:660:4406:693:2:0::2b",
-      "kavlan-8": "2001:660:4406:694:2:0::2b",
-      "kavlan-9": "2001:660:4406:695:2:0::2b"
+      "kavlan-1": "2001:660:4406:680:2::2b",
+      "kavlan-11": "2001:660:4406:1a0:602::2b",
+      "kavlan-12": "2001:660:4406:2a0:602::2b",
+      "kavlan-13": "2001:660:4406:4a0:602::2b",
+      "kavlan-14": "2001:660:4406:5a0:602::2b",
+      "kavlan-16": "2001:660:4406:7a0:602::2b",
+      "kavlan-18": "2001:660:4406:8a0:602::2b",
+      "kavlan-2": "2001:660:4406:681:2::2b",
+      "kavlan-20": "2001:660:4406:3a0:602::2b",
+      "kavlan-21": "2001:660:4406:6a0:602::2b",
+      "kavlan-3": "2001:660:4406:682:2::2b",
+      "kavlan-4": "2001:660:4406:690:2::2b",
+      "kavlan-5": "2001:660:4406:691:2::2b",
+      "kavlan-6": "2001:660:4406:692:2::2b",
+      "kavlan-7": "2001:660:4406:693:2::2b",
+      "kavlan-8": "2001:660:4406:694:2::2b",
+      "kavlan-9": "2001:660:4406:695:2::2b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::2b",
-      "kavlan-11": "2001:660:4406:1a0:602:1::2b",
-      "kavlan-12": "2001:660:4406:2a0:602:1::2b",
-      "kavlan-13": "2001:660:4406:4a0:602:1::2b",
-      "kavlan-14": "2001:660:4406:5a0:602:1::2b",
-      "kavlan-16": "2001:660:4406:7a0:602:1::2b",
-      "kavlan-18": "2001:660:4406:8a0:602:1::2b",
-      "kavlan-2": "2001:660:4406:681:2:1::2b",
-      "kavlan-20": "2001:660:4406:3a0:602:1::2b",
-      "kavlan-21": "2001:660:4406:6a0:602:1::2b",
-      "kavlan-3": "2001:660:4406:682:2:1::2b",
-      "kavlan-4": "2001:660:4406:690:2:1::2b",
-      "kavlan-5": "2001:660:4406:691:2:1::2b",
-      "kavlan-6": "2001:660:4406:692:2:1::2b",
-      "kavlan-7": "2001:660:4406:693:2:1::2b",
-      "kavlan-8": "2001:660:4406:694:2:1::2b",
-      "kavlan-9": "2001:660:4406:695:2:1::2b"
+      "kavlan-1": "2001:660:4406:680:2:1:0:2b",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:2b",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:2b",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:2b",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:2b",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:2b",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:2b",
+      "kavlan-2": "2001:660:4406:681:2:1:0:2b",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:2b",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:2b",
+      "kavlan-3": "2001:660:4406:682:2:1:0:2b",
+      "kavlan-4": "2001:660:4406:690:2:1:0:2b",
+      "kavlan-5": "2001:660:4406:691:2:1:0:2b",
+      "kavlan-6": "2001:660:4406:692:2:1:0:2b",
+      "kavlan-7": "2001:660:4406:693:2:1:0:2b",
+      "kavlan-8": "2001:660:4406:694:2:1:0:2b",
+      "kavlan-9": "2001:660:4406:695:2:1:0:2b"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.43",
-      "ip6": "2001:660:4406:600:2:0::2b",
+      "ip6": "2001:660:4406:600:2::2b",
       "kavlan": true,
       "mac": "24:6e:96:6a:d0:80",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.43",
-      "ip6": "2001:660:4406:600:2:1::2b",
+      "ip6": "2001:660:4406:600:2:1:0:2b",
       "kavlan": true,
       "mac": "24:6e:96:6a:d0:82",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-44.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-44.json
index d201986d6090ae567cef25e7a814db64008d512c..6d5255b15840afabc1bed7c0c900c1398ae1b851 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-44.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-44.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::2c",
-      "kavlan-11": "2001:660:4406:1a0:602:0::2c",
-      "kavlan-12": "2001:660:4406:2a0:602:0::2c",
-      "kavlan-13": "2001:660:4406:4a0:602:0::2c",
-      "kavlan-14": "2001:660:4406:5a0:602:0::2c",
-      "kavlan-16": "2001:660:4406:7a0:602:0::2c",
-      "kavlan-18": "2001:660:4406:8a0:602:0::2c",
-      "kavlan-2": "2001:660:4406:681:2:0::2c",
-      "kavlan-20": "2001:660:4406:3a0:602:0::2c",
-      "kavlan-21": "2001:660:4406:6a0:602:0::2c",
-      "kavlan-3": "2001:660:4406:682:2:0::2c",
-      "kavlan-4": "2001:660:4406:690:2:0::2c",
-      "kavlan-5": "2001:660:4406:691:2:0::2c",
-      "kavlan-6": "2001:660:4406:692:2:0::2c",
-      "kavlan-7": "2001:660:4406:693:2:0::2c",
-      "kavlan-8": "2001:660:4406:694:2:0::2c",
-      "kavlan-9": "2001:660:4406:695:2:0::2c"
+      "kavlan-1": "2001:660:4406:680:2::2c",
+      "kavlan-11": "2001:660:4406:1a0:602::2c",
+      "kavlan-12": "2001:660:4406:2a0:602::2c",
+      "kavlan-13": "2001:660:4406:4a0:602::2c",
+      "kavlan-14": "2001:660:4406:5a0:602::2c",
+      "kavlan-16": "2001:660:4406:7a0:602::2c",
+      "kavlan-18": "2001:660:4406:8a0:602::2c",
+      "kavlan-2": "2001:660:4406:681:2::2c",
+      "kavlan-20": "2001:660:4406:3a0:602::2c",
+      "kavlan-21": "2001:660:4406:6a0:602::2c",
+      "kavlan-3": "2001:660:4406:682:2::2c",
+      "kavlan-4": "2001:660:4406:690:2::2c",
+      "kavlan-5": "2001:660:4406:691:2::2c",
+      "kavlan-6": "2001:660:4406:692:2::2c",
+      "kavlan-7": "2001:660:4406:693:2::2c",
+      "kavlan-8": "2001:660:4406:694:2::2c",
+      "kavlan-9": "2001:660:4406:695:2::2c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::2c",
-      "kavlan-11": "2001:660:4406:1a0:602:1::2c",
-      "kavlan-12": "2001:660:4406:2a0:602:1::2c",
-      "kavlan-13": "2001:660:4406:4a0:602:1::2c",
-      "kavlan-14": "2001:660:4406:5a0:602:1::2c",
-      "kavlan-16": "2001:660:4406:7a0:602:1::2c",
-      "kavlan-18": "2001:660:4406:8a0:602:1::2c",
-      "kavlan-2": "2001:660:4406:681:2:1::2c",
-      "kavlan-20": "2001:660:4406:3a0:602:1::2c",
-      "kavlan-21": "2001:660:4406:6a0:602:1::2c",
-      "kavlan-3": "2001:660:4406:682:2:1::2c",
-      "kavlan-4": "2001:660:4406:690:2:1::2c",
-      "kavlan-5": "2001:660:4406:691:2:1::2c",
-      "kavlan-6": "2001:660:4406:692:2:1::2c",
-      "kavlan-7": "2001:660:4406:693:2:1::2c",
-      "kavlan-8": "2001:660:4406:694:2:1::2c",
-      "kavlan-9": "2001:660:4406:695:2:1::2c"
+      "kavlan-1": "2001:660:4406:680:2:1:0:2c",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:2c",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:2c",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:2c",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:2c",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:2c",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:2c",
+      "kavlan-2": "2001:660:4406:681:2:1:0:2c",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:2c",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:2c",
+      "kavlan-3": "2001:660:4406:682:2:1:0:2c",
+      "kavlan-4": "2001:660:4406:690:2:1:0:2c",
+      "kavlan-5": "2001:660:4406:691:2:1:0:2c",
+      "kavlan-6": "2001:660:4406:692:2:1:0:2c",
+      "kavlan-7": "2001:660:4406:693:2:1:0:2c",
+      "kavlan-8": "2001:660:4406:694:2:1:0:2c",
+      "kavlan-9": "2001:660:4406:695:2:1:0:2c"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.44",
-      "ip6": "2001:660:4406:600:2:0::2c",
+      "ip6": "2001:660:4406:600:2::2c",
       "kavlan": true,
       "mac": "24:6e:96:6a:63:50",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.44",
-      "ip6": "2001:660:4406:600:2:1::2c",
+      "ip6": "2001:660:4406:600:2:1:0:2c",
       "kavlan": true,
       "mac": "24:6e:96:6a:63:52",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-45.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-45.json
index 6f7f80a416f008638fa67c6f7e384e3e729d39d3..2a367174c28588924353678310c5821daa4c4728 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-45.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-45.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::2d",
-      "kavlan-11": "2001:660:4406:1a0:602:0::2d",
-      "kavlan-12": "2001:660:4406:2a0:602:0::2d",
-      "kavlan-13": "2001:660:4406:4a0:602:0::2d",
-      "kavlan-14": "2001:660:4406:5a0:602:0::2d",
-      "kavlan-16": "2001:660:4406:7a0:602:0::2d",
-      "kavlan-18": "2001:660:4406:8a0:602:0::2d",
-      "kavlan-2": "2001:660:4406:681:2:0::2d",
-      "kavlan-20": "2001:660:4406:3a0:602:0::2d",
-      "kavlan-21": "2001:660:4406:6a0:602:0::2d",
-      "kavlan-3": "2001:660:4406:682:2:0::2d",
-      "kavlan-4": "2001:660:4406:690:2:0::2d",
-      "kavlan-5": "2001:660:4406:691:2:0::2d",
-      "kavlan-6": "2001:660:4406:692:2:0::2d",
-      "kavlan-7": "2001:660:4406:693:2:0::2d",
-      "kavlan-8": "2001:660:4406:694:2:0::2d",
-      "kavlan-9": "2001:660:4406:695:2:0::2d"
+      "kavlan-1": "2001:660:4406:680:2::2d",
+      "kavlan-11": "2001:660:4406:1a0:602::2d",
+      "kavlan-12": "2001:660:4406:2a0:602::2d",
+      "kavlan-13": "2001:660:4406:4a0:602::2d",
+      "kavlan-14": "2001:660:4406:5a0:602::2d",
+      "kavlan-16": "2001:660:4406:7a0:602::2d",
+      "kavlan-18": "2001:660:4406:8a0:602::2d",
+      "kavlan-2": "2001:660:4406:681:2::2d",
+      "kavlan-20": "2001:660:4406:3a0:602::2d",
+      "kavlan-21": "2001:660:4406:6a0:602::2d",
+      "kavlan-3": "2001:660:4406:682:2::2d",
+      "kavlan-4": "2001:660:4406:690:2::2d",
+      "kavlan-5": "2001:660:4406:691:2::2d",
+      "kavlan-6": "2001:660:4406:692:2::2d",
+      "kavlan-7": "2001:660:4406:693:2::2d",
+      "kavlan-8": "2001:660:4406:694:2::2d",
+      "kavlan-9": "2001:660:4406:695:2::2d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::2d",
-      "kavlan-11": "2001:660:4406:1a0:602:1::2d",
-      "kavlan-12": "2001:660:4406:2a0:602:1::2d",
-      "kavlan-13": "2001:660:4406:4a0:602:1::2d",
-      "kavlan-14": "2001:660:4406:5a0:602:1::2d",
-      "kavlan-16": "2001:660:4406:7a0:602:1::2d",
-      "kavlan-18": "2001:660:4406:8a0:602:1::2d",
-      "kavlan-2": "2001:660:4406:681:2:1::2d",
-      "kavlan-20": "2001:660:4406:3a0:602:1::2d",
-      "kavlan-21": "2001:660:4406:6a0:602:1::2d",
-      "kavlan-3": "2001:660:4406:682:2:1::2d",
-      "kavlan-4": "2001:660:4406:690:2:1::2d",
-      "kavlan-5": "2001:660:4406:691:2:1::2d",
-      "kavlan-6": "2001:660:4406:692:2:1::2d",
-      "kavlan-7": "2001:660:4406:693:2:1::2d",
-      "kavlan-8": "2001:660:4406:694:2:1::2d",
-      "kavlan-9": "2001:660:4406:695:2:1::2d"
+      "kavlan-1": "2001:660:4406:680:2:1:0:2d",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:2d",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:2d",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:2d",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:2d",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:2d",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:2d",
+      "kavlan-2": "2001:660:4406:681:2:1:0:2d",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:2d",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:2d",
+      "kavlan-3": "2001:660:4406:682:2:1:0:2d",
+      "kavlan-4": "2001:660:4406:690:2:1:0:2d",
+      "kavlan-5": "2001:660:4406:691:2:1:0:2d",
+      "kavlan-6": "2001:660:4406:692:2:1:0:2d",
+      "kavlan-7": "2001:660:4406:693:2:1:0:2d",
+      "kavlan-8": "2001:660:4406:694:2:1:0:2d",
+      "kavlan-9": "2001:660:4406:695:2:1:0:2d"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.45",
-      "ip6": "2001:660:4406:600:2:0::2d",
+      "ip6": "2001:660:4406:600:2::2d",
       "kavlan": true,
       "mac": "24:6e:96:6a:47:40",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.45",
-      "ip6": "2001:660:4406:600:2:1::2d",
+      "ip6": "2001:660:4406:600:2:1:0:2d",
       "kavlan": true,
       "mac": "24:6e:96:6a:47:42",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-46.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-46.json
index 771bfee1390a12d394384b23181d94cfe23392b1..c90374247d2a6cc0490e790abd47b632765ed9fd 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-46.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-46.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::2e",
-      "kavlan-11": "2001:660:4406:1a0:602:0::2e",
-      "kavlan-12": "2001:660:4406:2a0:602:0::2e",
-      "kavlan-13": "2001:660:4406:4a0:602:0::2e",
-      "kavlan-14": "2001:660:4406:5a0:602:0::2e",
-      "kavlan-16": "2001:660:4406:7a0:602:0::2e",
-      "kavlan-18": "2001:660:4406:8a0:602:0::2e",
-      "kavlan-2": "2001:660:4406:681:2:0::2e",
-      "kavlan-20": "2001:660:4406:3a0:602:0::2e",
-      "kavlan-21": "2001:660:4406:6a0:602:0::2e",
-      "kavlan-3": "2001:660:4406:682:2:0::2e",
-      "kavlan-4": "2001:660:4406:690:2:0::2e",
-      "kavlan-5": "2001:660:4406:691:2:0::2e",
-      "kavlan-6": "2001:660:4406:692:2:0::2e",
-      "kavlan-7": "2001:660:4406:693:2:0::2e",
-      "kavlan-8": "2001:660:4406:694:2:0::2e",
-      "kavlan-9": "2001:660:4406:695:2:0::2e"
+      "kavlan-1": "2001:660:4406:680:2::2e",
+      "kavlan-11": "2001:660:4406:1a0:602::2e",
+      "kavlan-12": "2001:660:4406:2a0:602::2e",
+      "kavlan-13": "2001:660:4406:4a0:602::2e",
+      "kavlan-14": "2001:660:4406:5a0:602::2e",
+      "kavlan-16": "2001:660:4406:7a0:602::2e",
+      "kavlan-18": "2001:660:4406:8a0:602::2e",
+      "kavlan-2": "2001:660:4406:681:2::2e",
+      "kavlan-20": "2001:660:4406:3a0:602::2e",
+      "kavlan-21": "2001:660:4406:6a0:602::2e",
+      "kavlan-3": "2001:660:4406:682:2::2e",
+      "kavlan-4": "2001:660:4406:690:2::2e",
+      "kavlan-5": "2001:660:4406:691:2::2e",
+      "kavlan-6": "2001:660:4406:692:2::2e",
+      "kavlan-7": "2001:660:4406:693:2::2e",
+      "kavlan-8": "2001:660:4406:694:2::2e",
+      "kavlan-9": "2001:660:4406:695:2::2e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::2e",
-      "kavlan-11": "2001:660:4406:1a0:602:1::2e",
-      "kavlan-12": "2001:660:4406:2a0:602:1::2e",
-      "kavlan-13": "2001:660:4406:4a0:602:1::2e",
-      "kavlan-14": "2001:660:4406:5a0:602:1::2e",
-      "kavlan-16": "2001:660:4406:7a0:602:1::2e",
-      "kavlan-18": "2001:660:4406:8a0:602:1::2e",
-      "kavlan-2": "2001:660:4406:681:2:1::2e",
-      "kavlan-20": "2001:660:4406:3a0:602:1::2e",
-      "kavlan-21": "2001:660:4406:6a0:602:1::2e",
-      "kavlan-3": "2001:660:4406:682:2:1::2e",
-      "kavlan-4": "2001:660:4406:690:2:1::2e",
-      "kavlan-5": "2001:660:4406:691:2:1::2e",
-      "kavlan-6": "2001:660:4406:692:2:1::2e",
-      "kavlan-7": "2001:660:4406:693:2:1::2e",
-      "kavlan-8": "2001:660:4406:694:2:1::2e",
-      "kavlan-9": "2001:660:4406:695:2:1::2e"
+      "kavlan-1": "2001:660:4406:680:2:1:0:2e",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:2e",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:2e",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:2e",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:2e",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:2e",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:2e",
+      "kavlan-2": "2001:660:4406:681:2:1:0:2e",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:2e",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:2e",
+      "kavlan-3": "2001:660:4406:682:2:1:0:2e",
+      "kavlan-4": "2001:660:4406:690:2:1:0:2e",
+      "kavlan-5": "2001:660:4406:691:2:1:0:2e",
+      "kavlan-6": "2001:660:4406:692:2:1:0:2e",
+      "kavlan-7": "2001:660:4406:693:2:1:0:2e",
+      "kavlan-8": "2001:660:4406:694:2:1:0:2e",
+      "kavlan-9": "2001:660:4406:695:2:1:0:2e"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.46",
-      "ip6": "2001:660:4406:600:2:0::2e",
+      "ip6": "2001:660:4406:600:2::2e",
       "kavlan": true,
       "mac": "24:6e:96:6a:c9:a8",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.46",
-      "ip6": "2001:660:4406:600:2:1::2e",
+      "ip6": "2001:660:4406:600:2:1:0:2e",
       "kavlan": true,
       "mac": "24:6e:96:6a:c9:aa",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-47.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-47.json
index bd287dd9c68e8992a529601e46d3679fd8f33342..eece5df86e13d6787943ecaa42ae9d5659204e14 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-47.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-47.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::2f",
-      "kavlan-11": "2001:660:4406:1a0:602:0::2f",
-      "kavlan-12": "2001:660:4406:2a0:602:0::2f",
-      "kavlan-13": "2001:660:4406:4a0:602:0::2f",
-      "kavlan-14": "2001:660:4406:5a0:602:0::2f",
-      "kavlan-16": "2001:660:4406:7a0:602:0::2f",
-      "kavlan-18": "2001:660:4406:8a0:602:0::2f",
-      "kavlan-2": "2001:660:4406:681:2:0::2f",
-      "kavlan-20": "2001:660:4406:3a0:602:0::2f",
-      "kavlan-21": "2001:660:4406:6a0:602:0::2f",
-      "kavlan-3": "2001:660:4406:682:2:0::2f",
-      "kavlan-4": "2001:660:4406:690:2:0::2f",
-      "kavlan-5": "2001:660:4406:691:2:0::2f",
-      "kavlan-6": "2001:660:4406:692:2:0::2f",
-      "kavlan-7": "2001:660:4406:693:2:0::2f",
-      "kavlan-8": "2001:660:4406:694:2:0::2f",
-      "kavlan-9": "2001:660:4406:695:2:0::2f"
+      "kavlan-1": "2001:660:4406:680:2::2f",
+      "kavlan-11": "2001:660:4406:1a0:602::2f",
+      "kavlan-12": "2001:660:4406:2a0:602::2f",
+      "kavlan-13": "2001:660:4406:4a0:602::2f",
+      "kavlan-14": "2001:660:4406:5a0:602::2f",
+      "kavlan-16": "2001:660:4406:7a0:602::2f",
+      "kavlan-18": "2001:660:4406:8a0:602::2f",
+      "kavlan-2": "2001:660:4406:681:2::2f",
+      "kavlan-20": "2001:660:4406:3a0:602::2f",
+      "kavlan-21": "2001:660:4406:6a0:602::2f",
+      "kavlan-3": "2001:660:4406:682:2::2f",
+      "kavlan-4": "2001:660:4406:690:2::2f",
+      "kavlan-5": "2001:660:4406:691:2::2f",
+      "kavlan-6": "2001:660:4406:692:2::2f",
+      "kavlan-7": "2001:660:4406:693:2::2f",
+      "kavlan-8": "2001:660:4406:694:2::2f",
+      "kavlan-9": "2001:660:4406:695:2::2f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::2f",
-      "kavlan-11": "2001:660:4406:1a0:602:1::2f",
-      "kavlan-12": "2001:660:4406:2a0:602:1::2f",
-      "kavlan-13": "2001:660:4406:4a0:602:1::2f",
-      "kavlan-14": "2001:660:4406:5a0:602:1::2f",
-      "kavlan-16": "2001:660:4406:7a0:602:1::2f",
-      "kavlan-18": "2001:660:4406:8a0:602:1::2f",
-      "kavlan-2": "2001:660:4406:681:2:1::2f",
-      "kavlan-20": "2001:660:4406:3a0:602:1::2f",
-      "kavlan-21": "2001:660:4406:6a0:602:1::2f",
-      "kavlan-3": "2001:660:4406:682:2:1::2f",
-      "kavlan-4": "2001:660:4406:690:2:1::2f",
-      "kavlan-5": "2001:660:4406:691:2:1::2f",
-      "kavlan-6": "2001:660:4406:692:2:1::2f",
-      "kavlan-7": "2001:660:4406:693:2:1::2f",
-      "kavlan-8": "2001:660:4406:694:2:1::2f",
-      "kavlan-9": "2001:660:4406:695:2:1::2f"
+      "kavlan-1": "2001:660:4406:680:2:1:0:2f",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:2f",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:2f",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:2f",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:2f",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:2f",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:2f",
+      "kavlan-2": "2001:660:4406:681:2:1:0:2f",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:2f",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:2f",
+      "kavlan-3": "2001:660:4406:682:2:1:0:2f",
+      "kavlan-4": "2001:660:4406:690:2:1:0:2f",
+      "kavlan-5": "2001:660:4406:691:2:1:0:2f",
+      "kavlan-6": "2001:660:4406:692:2:1:0:2f",
+      "kavlan-7": "2001:660:4406:693:2:1:0:2f",
+      "kavlan-8": "2001:660:4406:694:2:1:0:2f",
+      "kavlan-9": "2001:660:4406:695:2:1:0:2f"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.47",
-      "ip6": "2001:660:4406:600:2:0::2f",
+      "ip6": "2001:660:4406:600:2::2f",
       "kavlan": true,
       "mac": "24:6e:96:6a:d1:e8",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.47",
-      "ip6": "2001:660:4406:600:2:1::2f",
+      "ip6": "2001:660:4406:600:2:1:0:2f",
       "kavlan": true,
       "mac": "24:6e:96:6a:d1:ea",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-48.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-48.json
index ff0f62942184e54b7d89dc146bca2e2acec60e12..8704bf77c37a660f83aa2335dbabbc137098c8b3 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-48.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-48.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::30",
-      "kavlan-11": "2001:660:4406:1a0:602:0::30",
-      "kavlan-12": "2001:660:4406:2a0:602:0::30",
-      "kavlan-13": "2001:660:4406:4a0:602:0::30",
-      "kavlan-14": "2001:660:4406:5a0:602:0::30",
-      "kavlan-16": "2001:660:4406:7a0:602:0::30",
-      "kavlan-18": "2001:660:4406:8a0:602:0::30",
-      "kavlan-2": "2001:660:4406:681:2:0::30",
-      "kavlan-20": "2001:660:4406:3a0:602:0::30",
-      "kavlan-21": "2001:660:4406:6a0:602:0::30",
-      "kavlan-3": "2001:660:4406:682:2:0::30",
-      "kavlan-4": "2001:660:4406:690:2:0::30",
-      "kavlan-5": "2001:660:4406:691:2:0::30",
-      "kavlan-6": "2001:660:4406:692:2:0::30",
-      "kavlan-7": "2001:660:4406:693:2:0::30",
-      "kavlan-8": "2001:660:4406:694:2:0::30",
-      "kavlan-9": "2001:660:4406:695:2:0::30"
+      "kavlan-1": "2001:660:4406:680:2::30",
+      "kavlan-11": "2001:660:4406:1a0:602::30",
+      "kavlan-12": "2001:660:4406:2a0:602::30",
+      "kavlan-13": "2001:660:4406:4a0:602::30",
+      "kavlan-14": "2001:660:4406:5a0:602::30",
+      "kavlan-16": "2001:660:4406:7a0:602::30",
+      "kavlan-18": "2001:660:4406:8a0:602::30",
+      "kavlan-2": "2001:660:4406:681:2::30",
+      "kavlan-20": "2001:660:4406:3a0:602::30",
+      "kavlan-21": "2001:660:4406:6a0:602::30",
+      "kavlan-3": "2001:660:4406:682:2::30",
+      "kavlan-4": "2001:660:4406:690:2::30",
+      "kavlan-5": "2001:660:4406:691:2::30",
+      "kavlan-6": "2001:660:4406:692:2::30",
+      "kavlan-7": "2001:660:4406:693:2::30",
+      "kavlan-8": "2001:660:4406:694:2::30",
+      "kavlan-9": "2001:660:4406:695:2::30"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::30",
-      "kavlan-11": "2001:660:4406:1a0:602:1::30",
-      "kavlan-12": "2001:660:4406:2a0:602:1::30",
-      "kavlan-13": "2001:660:4406:4a0:602:1::30",
-      "kavlan-14": "2001:660:4406:5a0:602:1::30",
-      "kavlan-16": "2001:660:4406:7a0:602:1::30",
-      "kavlan-18": "2001:660:4406:8a0:602:1::30",
-      "kavlan-2": "2001:660:4406:681:2:1::30",
-      "kavlan-20": "2001:660:4406:3a0:602:1::30",
-      "kavlan-21": "2001:660:4406:6a0:602:1::30",
-      "kavlan-3": "2001:660:4406:682:2:1::30",
-      "kavlan-4": "2001:660:4406:690:2:1::30",
-      "kavlan-5": "2001:660:4406:691:2:1::30",
-      "kavlan-6": "2001:660:4406:692:2:1::30",
-      "kavlan-7": "2001:660:4406:693:2:1::30",
-      "kavlan-8": "2001:660:4406:694:2:1::30",
-      "kavlan-9": "2001:660:4406:695:2:1::30"
+      "kavlan-1": "2001:660:4406:680:2:1:0:30",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:30",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:30",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:30",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:30",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:30",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:30",
+      "kavlan-2": "2001:660:4406:681:2:1:0:30",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:30",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:30",
+      "kavlan-3": "2001:660:4406:682:2:1:0:30",
+      "kavlan-4": "2001:660:4406:690:2:1:0:30",
+      "kavlan-5": "2001:660:4406:691:2:1:0:30",
+      "kavlan-6": "2001:660:4406:692:2:1:0:30",
+      "kavlan-7": "2001:660:4406:693:2:1:0:30",
+      "kavlan-8": "2001:660:4406:694:2:1:0:30",
+      "kavlan-9": "2001:660:4406:695:2:1:0:30"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.48",
-      "ip6": "2001:660:4406:600:2:0::30",
+      "ip6": "2001:660:4406:600:2::30",
       "kavlan": true,
       "mac": "24:6e:96:6a:cf:50",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.48",
-      "ip6": "2001:660:4406:600:2:1::30",
+      "ip6": "2001:660:4406:600:2:1:0:30",
       "kavlan": true,
       "mac": "24:6e:96:6a:cf:52",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-5.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-5.json
index 3a6787e2d062e19acf85743202c76f9962572e90..90e4901ba040b906bad7aaff8fba5f57a74ecd5b 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-5.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-5.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::5",
-      "kavlan-11": "2001:660:4406:1a0:602:0::5",
-      "kavlan-12": "2001:660:4406:2a0:602:0::5",
-      "kavlan-13": "2001:660:4406:4a0:602:0::5",
-      "kavlan-14": "2001:660:4406:5a0:602:0::5",
-      "kavlan-16": "2001:660:4406:7a0:602:0::5",
-      "kavlan-18": "2001:660:4406:8a0:602:0::5",
-      "kavlan-2": "2001:660:4406:681:2:0::5",
-      "kavlan-20": "2001:660:4406:3a0:602:0::5",
-      "kavlan-21": "2001:660:4406:6a0:602:0::5",
-      "kavlan-3": "2001:660:4406:682:2:0::5",
-      "kavlan-4": "2001:660:4406:690:2:0::5",
-      "kavlan-5": "2001:660:4406:691:2:0::5",
-      "kavlan-6": "2001:660:4406:692:2:0::5",
-      "kavlan-7": "2001:660:4406:693:2:0::5",
-      "kavlan-8": "2001:660:4406:694:2:0::5",
-      "kavlan-9": "2001:660:4406:695:2:0::5"
+      "kavlan-1": "2001:660:4406:680:2::5",
+      "kavlan-11": "2001:660:4406:1a0:602::5",
+      "kavlan-12": "2001:660:4406:2a0:602::5",
+      "kavlan-13": "2001:660:4406:4a0:602::5",
+      "kavlan-14": "2001:660:4406:5a0:602::5",
+      "kavlan-16": "2001:660:4406:7a0:602::5",
+      "kavlan-18": "2001:660:4406:8a0:602::5",
+      "kavlan-2": "2001:660:4406:681:2::5",
+      "kavlan-20": "2001:660:4406:3a0:602::5",
+      "kavlan-21": "2001:660:4406:6a0:602::5",
+      "kavlan-3": "2001:660:4406:682:2::5",
+      "kavlan-4": "2001:660:4406:690:2::5",
+      "kavlan-5": "2001:660:4406:691:2::5",
+      "kavlan-6": "2001:660:4406:692:2::5",
+      "kavlan-7": "2001:660:4406:693:2::5",
+      "kavlan-8": "2001:660:4406:694:2::5",
+      "kavlan-9": "2001:660:4406:695:2::5"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::5",
-      "kavlan-11": "2001:660:4406:1a0:602:1::5",
-      "kavlan-12": "2001:660:4406:2a0:602:1::5",
-      "kavlan-13": "2001:660:4406:4a0:602:1::5",
-      "kavlan-14": "2001:660:4406:5a0:602:1::5",
-      "kavlan-16": "2001:660:4406:7a0:602:1::5",
-      "kavlan-18": "2001:660:4406:8a0:602:1::5",
-      "kavlan-2": "2001:660:4406:681:2:1::5",
-      "kavlan-20": "2001:660:4406:3a0:602:1::5",
-      "kavlan-21": "2001:660:4406:6a0:602:1::5",
-      "kavlan-3": "2001:660:4406:682:2:1::5",
-      "kavlan-4": "2001:660:4406:690:2:1::5",
-      "kavlan-5": "2001:660:4406:691:2:1::5",
-      "kavlan-6": "2001:660:4406:692:2:1::5",
-      "kavlan-7": "2001:660:4406:693:2:1::5",
-      "kavlan-8": "2001:660:4406:694:2:1::5",
-      "kavlan-9": "2001:660:4406:695:2:1::5"
+      "kavlan-1": "2001:660:4406:680:2:1:0:5",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:5",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:5",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:5",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:5",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:5",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:5",
+      "kavlan-2": "2001:660:4406:681:2:1:0:5",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:5",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:5",
+      "kavlan-3": "2001:660:4406:682:2:1:0:5",
+      "kavlan-4": "2001:660:4406:690:2:1:0:5",
+      "kavlan-5": "2001:660:4406:691:2:1:0:5",
+      "kavlan-6": "2001:660:4406:692:2:1:0:5",
+      "kavlan-7": "2001:660:4406:693:2:1:0:5",
+      "kavlan-8": "2001:660:4406:694:2:1:0:5",
+      "kavlan-9": "2001:660:4406:695:2:1:0:5"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.5",
-      "ip6": "2001:660:4406:600:2:0::5",
+      "ip6": "2001:660:4406:600:2::5",
       "kavlan": true,
       "mac": "24:6e:96:6a:d3:28",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.5",
-      "ip6": "2001:660:4406:600:2:1::5",
+      "ip6": "2001:660:4406:600:2:1:0:5",
       "kavlan": true,
       "mac": "24:6e:96:6a:d3:2a",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-6.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-6.json
index 207fb8f3a0f154eae79b3a75af7881a63f0c2eb8..d8c2176bda40154faf2774518bb26226361beff6 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-6.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-6.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::6",
-      "kavlan-11": "2001:660:4406:1a0:602:0::6",
-      "kavlan-12": "2001:660:4406:2a0:602:0::6",
-      "kavlan-13": "2001:660:4406:4a0:602:0::6",
-      "kavlan-14": "2001:660:4406:5a0:602:0::6",
-      "kavlan-16": "2001:660:4406:7a0:602:0::6",
-      "kavlan-18": "2001:660:4406:8a0:602:0::6",
-      "kavlan-2": "2001:660:4406:681:2:0::6",
-      "kavlan-20": "2001:660:4406:3a0:602:0::6",
-      "kavlan-21": "2001:660:4406:6a0:602:0::6",
-      "kavlan-3": "2001:660:4406:682:2:0::6",
-      "kavlan-4": "2001:660:4406:690:2:0::6",
-      "kavlan-5": "2001:660:4406:691:2:0::6",
-      "kavlan-6": "2001:660:4406:692:2:0::6",
-      "kavlan-7": "2001:660:4406:693:2:0::6",
-      "kavlan-8": "2001:660:4406:694:2:0::6",
-      "kavlan-9": "2001:660:4406:695:2:0::6"
+      "kavlan-1": "2001:660:4406:680:2::6",
+      "kavlan-11": "2001:660:4406:1a0:602::6",
+      "kavlan-12": "2001:660:4406:2a0:602::6",
+      "kavlan-13": "2001:660:4406:4a0:602::6",
+      "kavlan-14": "2001:660:4406:5a0:602::6",
+      "kavlan-16": "2001:660:4406:7a0:602::6",
+      "kavlan-18": "2001:660:4406:8a0:602::6",
+      "kavlan-2": "2001:660:4406:681:2::6",
+      "kavlan-20": "2001:660:4406:3a0:602::6",
+      "kavlan-21": "2001:660:4406:6a0:602::6",
+      "kavlan-3": "2001:660:4406:682:2::6",
+      "kavlan-4": "2001:660:4406:690:2::6",
+      "kavlan-5": "2001:660:4406:691:2::6",
+      "kavlan-6": "2001:660:4406:692:2::6",
+      "kavlan-7": "2001:660:4406:693:2::6",
+      "kavlan-8": "2001:660:4406:694:2::6",
+      "kavlan-9": "2001:660:4406:695:2::6"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::6",
-      "kavlan-11": "2001:660:4406:1a0:602:1::6",
-      "kavlan-12": "2001:660:4406:2a0:602:1::6",
-      "kavlan-13": "2001:660:4406:4a0:602:1::6",
-      "kavlan-14": "2001:660:4406:5a0:602:1::6",
-      "kavlan-16": "2001:660:4406:7a0:602:1::6",
-      "kavlan-18": "2001:660:4406:8a0:602:1::6",
-      "kavlan-2": "2001:660:4406:681:2:1::6",
-      "kavlan-20": "2001:660:4406:3a0:602:1::6",
-      "kavlan-21": "2001:660:4406:6a0:602:1::6",
-      "kavlan-3": "2001:660:4406:682:2:1::6",
-      "kavlan-4": "2001:660:4406:690:2:1::6",
-      "kavlan-5": "2001:660:4406:691:2:1::6",
-      "kavlan-6": "2001:660:4406:692:2:1::6",
-      "kavlan-7": "2001:660:4406:693:2:1::6",
-      "kavlan-8": "2001:660:4406:694:2:1::6",
-      "kavlan-9": "2001:660:4406:695:2:1::6"
+      "kavlan-1": "2001:660:4406:680:2:1:0:6",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:6",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:6",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:6",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:6",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:6",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:6",
+      "kavlan-2": "2001:660:4406:681:2:1:0:6",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:6",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:6",
+      "kavlan-3": "2001:660:4406:682:2:1:0:6",
+      "kavlan-4": "2001:660:4406:690:2:1:0:6",
+      "kavlan-5": "2001:660:4406:691:2:1:0:6",
+      "kavlan-6": "2001:660:4406:692:2:1:0:6",
+      "kavlan-7": "2001:660:4406:693:2:1:0:6",
+      "kavlan-8": "2001:660:4406:694:2:1:0:6",
+      "kavlan-9": "2001:660:4406:695:2:1:0:6"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.6",
-      "ip6": "2001:660:4406:600:2:0::6",
+      "ip6": "2001:660:4406:600:2::6",
       "kavlan": true,
       "mac": "24:6e:96:6a:d6:b0",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.6",
-      "ip6": "2001:660:4406:600:2:1::6",
+      "ip6": "2001:660:4406:600:2:1:0:6",
       "kavlan": true,
       "mac": "24:6e:96:6a:d6:b2",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-7.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-7.json
index 02052fa18d5dc2c8360cc0968d013cfb1d5f5828..0c2aeb6c96cd3c49306378215d0de6ec10405f3e 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-7.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-7.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::7",
-      "kavlan-11": "2001:660:4406:1a0:602:0::7",
-      "kavlan-12": "2001:660:4406:2a0:602:0::7",
-      "kavlan-13": "2001:660:4406:4a0:602:0::7",
-      "kavlan-14": "2001:660:4406:5a0:602:0::7",
-      "kavlan-16": "2001:660:4406:7a0:602:0::7",
-      "kavlan-18": "2001:660:4406:8a0:602:0::7",
-      "kavlan-2": "2001:660:4406:681:2:0::7",
-      "kavlan-20": "2001:660:4406:3a0:602:0::7",
-      "kavlan-21": "2001:660:4406:6a0:602:0::7",
-      "kavlan-3": "2001:660:4406:682:2:0::7",
-      "kavlan-4": "2001:660:4406:690:2:0::7",
-      "kavlan-5": "2001:660:4406:691:2:0::7",
-      "kavlan-6": "2001:660:4406:692:2:0::7",
-      "kavlan-7": "2001:660:4406:693:2:0::7",
-      "kavlan-8": "2001:660:4406:694:2:0::7",
-      "kavlan-9": "2001:660:4406:695:2:0::7"
+      "kavlan-1": "2001:660:4406:680:2::7",
+      "kavlan-11": "2001:660:4406:1a0:602::7",
+      "kavlan-12": "2001:660:4406:2a0:602::7",
+      "kavlan-13": "2001:660:4406:4a0:602::7",
+      "kavlan-14": "2001:660:4406:5a0:602::7",
+      "kavlan-16": "2001:660:4406:7a0:602::7",
+      "kavlan-18": "2001:660:4406:8a0:602::7",
+      "kavlan-2": "2001:660:4406:681:2::7",
+      "kavlan-20": "2001:660:4406:3a0:602::7",
+      "kavlan-21": "2001:660:4406:6a0:602::7",
+      "kavlan-3": "2001:660:4406:682:2::7",
+      "kavlan-4": "2001:660:4406:690:2::7",
+      "kavlan-5": "2001:660:4406:691:2::7",
+      "kavlan-6": "2001:660:4406:692:2::7",
+      "kavlan-7": "2001:660:4406:693:2::7",
+      "kavlan-8": "2001:660:4406:694:2::7",
+      "kavlan-9": "2001:660:4406:695:2::7"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::7",
-      "kavlan-11": "2001:660:4406:1a0:602:1::7",
-      "kavlan-12": "2001:660:4406:2a0:602:1::7",
-      "kavlan-13": "2001:660:4406:4a0:602:1::7",
-      "kavlan-14": "2001:660:4406:5a0:602:1::7",
-      "kavlan-16": "2001:660:4406:7a0:602:1::7",
-      "kavlan-18": "2001:660:4406:8a0:602:1::7",
-      "kavlan-2": "2001:660:4406:681:2:1::7",
-      "kavlan-20": "2001:660:4406:3a0:602:1::7",
-      "kavlan-21": "2001:660:4406:6a0:602:1::7",
-      "kavlan-3": "2001:660:4406:682:2:1::7",
-      "kavlan-4": "2001:660:4406:690:2:1::7",
-      "kavlan-5": "2001:660:4406:691:2:1::7",
-      "kavlan-6": "2001:660:4406:692:2:1::7",
-      "kavlan-7": "2001:660:4406:693:2:1::7",
-      "kavlan-8": "2001:660:4406:694:2:1::7",
-      "kavlan-9": "2001:660:4406:695:2:1::7"
+      "kavlan-1": "2001:660:4406:680:2:1:0:7",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:7",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:7",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:7",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:7",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:7",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:7",
+      "kavlan-2": "2001:660:4406:681:2:1:0:7",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:7",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:7",
+      "kavlan-3": "2001:660:4406:682:2:1:0:7",
+      "kavlan-4": "2001:660:4406:690:2:1:0:7",
+      "kavlan-5": "2001:660:4406:691:2:1:0:7",
+      "kavlan-6": "2001:660:4406:692:2:1:0:7",
+      "kavlan-7": "2001:660:4406:693:2:1:0:7",
+      "kavlan-8": "2001:660:4406:694:2:1:0:7",
+      "kavlan-9": "2001:660:4406:695:2:1:0:7"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.7",
-      "ip6": "2001:660:4406:600:2:0::7",
+      "ip6": "2001:660:4406:600:2::7",
       "kavlan": true,
       "mac": "24:6e:96:6a:4f:78",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.7",
-      "ip6": "2001:660:4406:600:2:1::7",
+      "ip6": "2001:660:4406:600:2:1:0:7",
       "kavlan": true,
       "mac": "24:6e:96:6a:4f:7a",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-8.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-8.json
index 9fd5b265dc75fd3109a1a1002a8399a2d7a2bad5..5a35a29c966633791c8c24e93c2258476b0622c9 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-8.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-8.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::8",
-      "kavlan-11": "2001:660:4406:1a0:602:0::8",
-      "kavlan-12": "2001:660:4406:2a0:602:0::8",
-      "kavlan-13": "2001:660:4406:4a0:602:0::8",
-      "kavlan-14": "2001:660:4406:5a0:602:0::8",
-      "kavlan-16": "2001:660:4406:7a0:602:0::8",
-      "kavlan-18": "2001:660:4406:8a0:602:0::8",
-      "kavlan-2": "2001:660:4406:681:2:0::8",
-      "kavlan-20": "2001:660:4406:3a0:602:0::8",
-      "kavlan-21": "2001:660:4406:6a0:602:0::8",
-      "kavlan-3": "2001:660:4406:682:2:0::8",
-      "kavlan-4": "2001:660:4406:690:2:0::8",
-      "kavlan-5": "2001:660:4406:691:2:0::8",
-      "kavlan-6": "2001:660:4406:692:2:0::8",
-      "kavlan-7": "2001:660:4406:693:2:0::8",
-      "kavlan-8": "2001:660:4406:694:2:0::8",
-      "kavlan-9": "2001:660:4406:695:2:0::8"
+      "kavlan-1": "2001:660:4406:680:2::8",
+      "kavlan-11": "2001:660:4406:1a0:602::8",
+      "kavlan-12": "2001:660:4406:2a0:602::8",
+      "kavlan-13": "2001:660:4406:4a0:602::8",
+      "kavlan-14": "2001:660:4406:5a0:602::8",
+      "kavlan-16": "2001:660:4406:7a0:602::8",
+      "kavlan-18": "2001:660:4406:8a0:602::8",
+      "kavlan-2": "2001:660:4406:681:2::8",
+      "kavlan-20": "2001:660:4406:3a0:602::8",
+      "kavlan-21": "2001:660:4406:6a0:602::8",
+      "kavlan-3": "2001:660:4406:682:2::8",
+      "kavlan-4": "2001:660:4406:690:2::8",
+      "kavlan-5": "2001:660:4406:691:2::8",
+      "kavlan-6": "2001:660:4406:692:2::8",
+      "kavlan-7": "2001:660:4406:693:2::8",
+      "kavlan-8": "2001:660:4406:694:2::8",
+      "kavlan-9": "2001:660:4406:695:2::8"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::8",
-      "kavlan-11": "2001:660:4406:1a0:602:1::8",
-      "kavlan-12": "2001:660:4406:2a0:602:1::8",
-      "kavlan-13": "2001:660:4406:4a0:602:1::8",
-      "kavlan-14": "2001:660:4406:5a0:602:1::8",
-      "kavlan-16": "2001:660:4406:7a0:602:1::8",
-      "kavlan-18": "2001:660:4406:8a0:602:1::8",
-      "kavlan-2": "2001:660:4406:681:2:1::8",
-      "kavlan-20": "2001:660:4406:3a0:602:1::8",
-      "kavlan-21": "2001:660:4406:6a0:602:1::8",
-      "kavlan-3": "2001:660:4406:682:2:1::8",
-      "kavlan-4": "2001:660:4406:690:2:1::8",
-      "kavlan-5": "2001:660:4406:691:2:1::8",
-      "kavlan-6": "2001:660:4406:692:2:1::8",
-      "kavlan-7": "2001:660:4406:693:2:1::8",
-      "kavlan-8": "2001:660:4406:694:2:1::8",
-      "kavlan-9": "2001:660:4406:695:2:1::8"
+      "kavlan-1": "2001:660:4406:680:2:1:0:8",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:8",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:8",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:8",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:8",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:8",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:8",
+      "kavlan-2": "2001:660:4406:681:2:1:0:8",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:8",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:8",
+      "kavlan-3": "2001:660:4406:682:2:1:0:8",
+      "kavlan-4": "2001:660:4406:690:2:1:0:8",
+      "kavlan-5": "2001:660:4406:691:2:1:0:8",
+      "kavlan-6": "2001:660:4406:692:2:1:0:8",
+      "kavlan-7": "2001:660:4406:693:2:1:0:8",
+      "kavlan-8": "2001:660:4406:694:2:1:0:8",
+      "kavlan-9": "2001:660:4406:695:2:1:0:8"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.8",
-      "ip6": "2001:660:4406:600:2:0::8",
+      "ip6": "2001:660:4406:600:2::8",
       "kavlan": true,
       "mac": "24:6e:96:6a:c9:d0",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.8",
-      "ip6": "2001:660:4406:600:2:1::8",
+      "ip6": "2001:660:4406:600:2:1:0:8",
       "kavlan": true,
       "mac": "24:6e:96:6a:c9:d2",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-9.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-9.json
index 81b3906ed981fc6cee0c95e71739a3527e86cd9e..a73fd6b3e6a4d2fa93151fe0662054a22257c455 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-9.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-9.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2:0::9",
-      "kavlan-11": "2001:660:4406:1a0:602:0::9",
-      "kavlan-12": "2001:660:4406:2a0:602:0::9",
-      "kavlan-13": "2001:660:4406:4a0:602:0::9",
-      "kavlan-14": "2001:660:4406:5a0:602:0::9",
-      "kavlan-16": "2001:660:4406:7a0:602:0::9",
-      "kavlan-18": "2001:660:4406:8a0:602:0::9",
-      "kavlan-2": "2001:660:4406:681:2:0::9",
-      "kavlan-20": "2001:660:4406:3a0:602:0::9",
-      "kavlan-21": "2001:660:4406:6a0:602:0::9",
-      "kavlan-3": "2001:660:4406:682:2:0::9",
-      "kavlan-4": "2001:660:4406:690:2:0::9",
-      "kavlan-5": "2001:660:4406:691:2:0::9",
-      "kavlan-6": "2001:660:4406:692:2:0::9",
-      "kavlan-7": "2001:660:4406:693:2:0::9",
-      "kavlan-8": "2001:660:4406:694:2:0::9",
-      "kavlan-9": "2001:660:4406:695:2:0::9"
+      "kavlan-1": "2001:660:4406:680:2::9",
+      "kavlan-11": "2001:660:4406:1a0:602::9",
+      "kavlan-12": "2001:660:4406:2a0:602::9",
+      "kavlan-13": "2001:660:4406:4a0:602::9",
+      "kavlan-14": "2001:660:4406:5a0:602::9",
+      "kavlan-16": "2001:660:4406:7a0:602::9",
+      "kavlan-18": "2001:660:4406:8a0:602::9",
+      "kavlan-2": "2001:660:4406:681:2::9",
+      "kavlan-20": "2001:660:4406:3a0:602::9",
+      "kavlan-21": "2001:660:4406:6a0:602::9",
+      "kavlan-3": "2001:660:4406:682:2::9",
+      "kavlan-4": "2001:660:4406:690:2::9",
+      "kavlan-5": "2001:660:4406:691:2::9",
+      "kavlan-6": "2001:660:4406:692:2::9",
+      "kavlan-7": "2001:660:4406:693:2::9",
+      "kavlan-8": "2001:660:4406:694:2::9",
+      "kavlan-9": "2001:660:4406:695:2::9"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:680:2:1::9",
-      "kavlan-11": "2001:660:4406:1a0:602:1::9",
-      "kavlan-12": "2001:660:4406:2a0:602:1::9",
-      "kavlan-13": "2001:660:4406:4a0:602:1::9",
-      "kavlan-14": "2001:660:4406:5a0:602:1::9",
-      "kavlan-16": "2001:660:4406:7a0:602:1::9",
-      "kavlan-18": "2001:660:4406:8a0:602:1::9",
-      "kavlan-2": "2001:660:4406:681:2:1::9",
-      "kavlan-20": "2001:660:4406:3a0:602:1::9",
-      "kavlan-21": "2001:660:4406:6a0:602:1::9",
-      "kavlan-3": "2001:660:4406:682:2:1::9",
-      "kavlan-4": "2001:660:4406:690:2:1::9",
-      "kavlan-5": "2001:660:4406:691:2:1::9",
-      "kavlan-6": "2001:660:4406:692:2:1::9",
-      "kavlan-7": "2001:660:4406:693:2:1::9",
-      "kavlan-8": "2001:660:4406:694:2:1::9",
-      "kavlan-9": "2001:660:4406:695:2:1::9"
+      "kavlan-1": "2001:660:4406:680:2:1:0:9",
+      "kavlan-11": "2001:660:4406:1a0:602:1:0:9",
+      "kavlan-12": "2001:660:4406:2a0:602:1:0:9",
+      "kavlan-13": "2001:660:4406:4a0:602:1:0:9",
+      "kavlan-14": "2001:660:4406:5a0:602:1:0:9",
+      "kavlan-16": "2001:660:4406:7a0:602:1:0:9",
+      "kavlan-18": "2001:660:4406:8a0:602:1:0:9",
+      "kavlan-2": "2001:660:4406:681:2:1:0:9",
+      "kavlan-20": "2001:660:4406:3a0:602:1:0:9",
+      "kavlan-21": "2001:660:4406:6a0:602:1:0:9",
+      "kavlan-3": "2001:660:4406:682:2:1:0:9",
+      "kavlan-4": "2001:660:4406:690:2:1:0:9",
+      "kavlan-5": "2001:660:4406:691:2:1:0:9",
+      "kavlan-6": "2001:660:4406:692:2:1:0:9",
+      "kavlan-7": "2001:660:4406:693:2:1:0:9",
+      "kavlan-8": "2001:660:4406:694:2:1:0:9",
+      "kavlan-9": "2001:660:4406:695:2:1:0:9"
     }
   },
   "main_memory": {
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.9",
-      "ip6": "2001:660:4406:600:2:0::9",
+      "ip6": "2001:660:4406:600:2::9",
       "kavlan": true,
       "mac": "24:6e:96:6a:d7:00",
       "management": false,
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.194.9",
-      "ip6": "2001:660:4406:600:2:1::9",
+      "ip6": "2001:660:4406:600:2:1:0:9",
       "kavlan": true,
       "mac": "24:6e:96:6a:d7:02",
       "management": false,
diff --git a/data/grid5000/sites/nantes/nantes.json b/data/grid5000/sites/nantes/nantes.json
index d7b43f3bdd93c05d6c4a17ff6d0c625028ba4bc5..11a83bcf38dd6eab52874894422760e4d8cb1aa3 100644
--- a/data/grid5000/sites/nantes/nantes.json
+++ b/data/grid5000/sites/nantes/nantes.json
@@ -8,7 +8,7 @@
     "network": "10.176.0.0/14"
   },
   "ipv6": {
-    "prefix": "2001:660:4406:06",
+    "prefix": "2001:660:4406:600::/56",
     "site_global_kavlan": 21,
     "site_index": 6
   },
diff --git a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-1.json b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-1.json
index 471ba7b32ba402d4dfab6648408db488c1fbbe7f..7ad19a90fca53976927876c3ba5e2abdabb6c1c7 100644
--- a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-1.json
+++ b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-1.json
@@ -79,61 +79,61 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:5:0::1",
-      "kavlan-11": "2001:660:4406:1a0:705:0::1",
-      "kavlan-12": "2001:660:4406:2a0:705:0::1",
-      "kavlan-13": "2001:660:4406:4a0:705:0::1",
-      "kavlan-14": "2001:660:4406:5a0:705:0::1",
-      "kavlan-16": "2001:660:4406:7a0:705:0::1",
-      "kavlan-18": "2001:660:4406:8a0:705:0::1",
-      "kavlan-2": "2001:660:4406:781:5:0::1",
-      "kavlan-20": "2001:660:4406:3a0:705:0::1",
-      "kavlan-21": "2001:660:4406:6a0:705:0::1",
-      "kavlan-3": "2001:660:4406:782:5:0::1",
-      "kavlan-4": "2001:660:4406:790:5:0::1",
-      "kavlan-5": "2001:660:4406:791:5:0::1",
-      "kavlan-6": "2001:660:4406:792:5:0::1",
-      "kavlan-7": "2001:660:4406:793:5:0::1",
-      "kavlan-8": "2001:660:4406:794:5:0::1",
-      "kavlan-9": "2001:660:4406:795:5:0::1"
+      "kavlan-1": "2001:660:4406:780:5::1",
+      "kavlan-11": "2001:660:4406:1a0:705::1",
+      "kavlan-12": "2001:660:4406:2a0:705::1",
+      "kavlan-13": "2001:660:4406:4a0:705::1",
+      "kavlan-14": "2001:660:4406:5a0:705::1",
+      "kavlan-16": "2001:660:4406:7a0:705::1",
+      "kavlan-18": "2001:660:4406:8a0:705::1",
+      "kavlan-2": "2001:660:4406:781:5::1",
+      "kavlan-20": "2001:660:4406:3a0:705::1",
+      "kavlan-21": "2001:660:4406:6a0:705::1",
+      "kavlan-3": "2001:660:4406:782:5::1",
+      "kavlan-4": "2001:660:4406:790:5::1",
+      "kavlan-5": "2001:660:4406:791:5::1",
+      "kavlan-6": "2001:660:4406:792:5::1",
+      "kavlan-7": "2001:660:4406:793:5::1",
+      "kavlan-8": "2001:660:4406:794:5::1",
+      "kavlan-9": "2001:660:4406:795:5::1"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:5:1::1",
-      "kavlan-11": "2001:660:4406:1a0:705:1::1",
-      "kavlan-12": "2001:660:4406:2a0:705:1::1",
-      "kavlan-13": "2001:660:4406:4a0:705:1::1",
-      "kavlan-14": "2001:660:4406:5a0:705:1::1",
-      "kavlan-16": "2001:660:4406:7a0:705:1::1",
-      "kavlan-18": "2001:660:4406:8a0:705:1::1",
-      "kavlan-2": "2001:660:4406:781:5:1::1",
-      "kavlan-20": "2001:660:4406:3a0:705:1::1",
-      "kavlan-21": "2001:660:4406:6a0:705:1::1",
-      "kavlan-3": "2001:660:4406:782:5:1::1",
-      "kavlan-4": "2001:660:4406:790:5:1::1",
-      "kavlan-5": "2001:660:4406:791:5:1::1",
-      "kavlan-6": "2001:660:4406:792:5:1::1",
-      "kavlan-7": "2001:660:4406:793:5:1::1",
-      "kavlan-8": "2001:660:4406:794:5:1::1",
-      "kavlan-9": "2001:660:4406:795:5:1::1"
+      "kavlan-1": "2001:660:4406:780:5:1:0:1",
+      "kavlan-11": "2001:660:4406:1a0:705:1:0:1",
+      "kavlan-12": "2001:660:4406:2a0:705:1:0:1",
+      "kavlan-13": "2001:660:4406:4a0:705:1:0:1",
+      "kavlan-14": "2001:660:4406:5a0:705:1:0:1",
+      "kavlan-16": "2001:660:4406:7a0:705:1:0:1",
+      "kavlan-18": "2001:660:4406:8a0:705:1:0:1",
+      "kavlan-2": "2001:660:4406:781:5:1:0:1",
+      "kavlan-20": "2001:660:4406:3a0:705:1:0:1",
+      "kavlan-21": "2001:660:4406:6a0:705:1:0:1",
+      "kavlan-3": "2001:660:4406:782:5:1:0:1",
+      "kavlan-4": "2001:660:4406:790:5:1:0:1",
+      "kavlan-5": "2001:660:4406:791:5:1:0:1",
+      "kavlan-6": "2001:660:4406:792:5:1:0:1",
+      "kavlan-7": "2001:660:4406:793:5:1:0:1",
+      "kavlan-8": "2001:660:4406:794:5:1:0:1",
+      "kavlan-9": "2001:660:4406:795:5:1:0:1"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:780:5:2::1",
-      "kavlan-11": "2001:660:4406:1a0:705:2::1",
-      "kavlan-12": "2001:660:4406:2a0:705:2::1",
-      "kavlan-13": "2001:660:4406:4a0:705:2::1",
-      "kavlan-14": "2001:660:4406:5a0:705:2::1",
-      "kavlan-16": "2001:660:4406:7a0:705:2::1",
-      "kavlan-18": "2001:660:4406:8a0:705:2::1",
-      "kavlan-2": "2001:660:4406:781:5:2::1",
-      "kavlan-20": "2001:660:4406:3a0:705:2::1",
-      "kavlan-21": "2001:660:4406:6a0:705:2::1",
-      "kavlan-3": "2001:660:4406:782:5:2::1",
-      "kavlan-4": "2001:660:4406:790:5:2::1",
-      "kavlan-5": "2001:660:4406:791:5:2::1",
-      "kavlan-6": "2001:660:4406:792:5:2::1",
-      "kavlan-7": "2001:660:4406:793:5:2::1",
-      "kavlan-8": "2001:660:4406:794:5:2::1",
-      "kavlan-9": "2001:660:4406:795:5:2::1"
+      "kavlan-1": "2001:660:4406:780:5:2:0:1",
+      "kavlan-11": "2001:660:4406:1a0:705:2:0:1",
+      "kavlan-12": "2001:660:4406:2a0:705:2:0:1",
+      "kavlan-13": "2001:660:4406:4a0:705:2:0:1",
+      "kavlan-14": "2001:660:4406:5a0:705:2:0:1",
+      "kavlan-16": "2001:660:4406:7a0:705:2:0:1",
+      "kavlan-18": "2001:660:4406:8a0:705:2:0:1",
+      "kavlan-2": "2001:660:4406:781:5:2:0:1",
+      "kavlan-20": "2001:660:4406:3a0:705:2:0:1",
+      "kavlan-21": "2001:660:4406:6a0:705:2:0:1",
+      "kavlan-3": "2001:660:4406:782:5:2:0:1",
+      "kavlan-4": "2001:660:4406:790:5:2:0:1",
+      "kavlan-5": "2001:660:4406:791:5:2:0:1",
+      "kavlan-6": "2001:660:4406:792:5:2:0:1",
+      "kavlan-7": "2001:660:4406:793:5:2:0:1",
+      "kavlan-8": "2001:660:4406:794:5:2:0:1",
+      "kavlan-9": "2001:660:4406:795:5:2:0:1"
     }
   },
   "main_memory": {
@@ -151,7 +151,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.1",
-      "ip6": "2001:660:4406:700:5:0::1",
+      "ip6": "2001:660:4406:700:5::1",
       "kavlan": true,
       "mac": "a0:36:9f:28:a6:d0",
       "management": false,
@@ -173,7 +173,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.101",
-      "ip6": "2001:660:4406:700:5:1::1",
+      "ip6": "2001:660:4406:700:5:1:0:1",
       "kavlan": true,
       "mac": "a0:36:9f:28:a6:d2",
       "management": false,
@@ -195,7 +195,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.100.201",
-      "ip6": "2001:660:4406:700:5:2::1",
+      "ip6": "2001:660:4406:700:5:2:0:1",
       "kavlan": true,
       "mac": "f0:4d:a2:73:cf:45",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-2.json b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-2.json
index 6152a31bbfcd259bc24792d3f8bb0e9f418ca3f9..686a43e57d55f60cdfd57f76f2e3027b62d5a66e 100644
--- a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-2.json
+++ b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-2.json
@@ -79,61 +79,61 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:5:0::2",
-      "kavlan-11": "2001:660:4406:1a0:705:0::2",
-      "kavlan-12": "2001:660:4406:2a0:705:0::2",
-      "kavlan-13": "2001:660:4406:4a0:705:0::2",
-      "kavlan-14": "2001:660:4406:5a0:705:0::2",
-      "kavlan-16": "2001:660:4406:7a0:705:0::2",
-      "kavlan-18": "2001:660:4406:8a0:705:0::2",
-      "kavlan-2": "2001:660:4406:781:5:0::2",
-      "kavlan-20": "2001:660:4406:3a0:705:0::2",
-      "kavlan-21": "2001:660:4406:6a0:705:0::2",
-      "kavlan-3": "2001:660:4406:782:5:0::2",
-      "kavlan-4": "2001:660:4406:790:5:0::2",
-      "kavlan-5": "2001:660:4406:791:5:0::2",
-      "kavlan-6": "2001:660:4406:792:5:0::2",
-      "kavlan-7": "2001:660:4406:793:5:0::2",
-      "kavlan-8": "2001:660:4406:794:5:0::2",
-      "kavlan-9": "2001:660:4406:795:5:0::2"
+      "kavlan-1": "2001:660:4406:780:5::2",
+      "kavlan-11": "2001:660:4406:1a0:705::2",
+      "kavlan-12": "2001:660:4406:2a0:705::2",
+      "kavlan-13": "2001:660:4406:4a0:705::2",
+      "kavlan-14": "2001:660:4406:5a0:705::2",
+      "kavlan-16": "2001:660:4406:7a0:705::2",
+      "kavlan-18": "2001:660:4406:8a0:705::2",
+      "kavlan-2": "2001:660:4406:781:5::2",
+      "kavlan-20": "2001:660:4406:3a0:705::2",
+      "kavlan-21": "2001:660:4406:6a0:705::2",
+      "kavlan-3": "2001:660:4406:782:5::2",
+      "kavlan-4": "2001:660:4406:790:5::2",
+      "kavlan-5": "2001:660:4406:791:5::2",
+      "kavlan-6": "2001:660:4406:792:5::2",
+      "kavlan-7": "2001:660:4406:793:5::2",
+      "kavlan-8": "2001:660:4406:794:5::2",
+      "kavlan-9": "2001:660:4406:795:5::2"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:5:1::2",
-      "kavlan-11": "2001:660:4406:1a0:705:1::2",
-      "kavlan-12": "2001:660:4406:2a0:705:1::2",
-      "kavlan-13": "2001:660:4406:4a0:705:1::2",
-      "kavlan-14": "2001:660:4406:5a0:705:1::2",
-      "kavlan-16": "2001:660:4406:7a0:705:1::2",
-      "kavlan-18": "2001:660:4406:8a0:705:1::2",
-      "kavlan-2": "2001:660:4406:781:5:1::2",
-      "kavlan-20": "2001:660:4406:3a0:705:1::2",
-      "kavlan-21": "2001:660:4406:6a0:705:1::2",
-      "kavlan-3": "2001:660:4406:782:5:1::2",
-      "kavlan-4": "2001:660:4406:790:5:1::2",
-      "kavlan-5": "2001:660:4406:791:5:1::2",
-      "kavlan-6": "2001:660:4406:792:5:1::2",
-      "kavlan-7": "2001:660:4406:793:5:1::2",
-      "kavlan-8": "2001:660:4406:794:5:1::2",
-      "kavlan-9": "2001:660:4406:795:5:1::2"
+      "kavlan-1": "2001:660:4406:780:5:1:0:2",
+      "kavlan-11": "2001:660:4406:1a0:705:1:0:2",
+      "kavlan-12": "2001:660:4406:2a0:705:1:0:2",
+      "kavlan-13": "2001:660:4406:4a0:705:1:0:2",
+      "kavlan-14": "2001:660:4406:5a0:705:1:0:2",
+      "kavlan-16": "2001:660:4406:7a0:705:1:0:2",
+      "kavlan-18": "2001:660:4406:8a0:705:1:0:2",
+      "kavlan-2": "2001:660:4406:781:5:1:0:2",
+      "kavlan-20": "2001:660:4406:3a0:705:1:0:2",
+      "kavlan-21": "2001:660:4406:6a0:705:1:0:2",
+      "kavlan-3": "2001:660:4406:782:5:1:0:2",
+      "kavlan-4": "2001:660:4406:790:5:1:0:2",
+      "kavlan-5": "2001:660:4406:791:5:1:0:2",
+      "kavlan-6": "2001:660:4406:792:5:1:0:2",
+      "kavlan-7": "2001:660:4406:793:5:1:0:2",
+      "kavlan-8": "2001:660:4406:794:5:1:0:2",
+      "kavlan-9": "2001:660:4406:795:5:1:0:2"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:780:5:2::2",
-      "kavlan-11": "2001:660:4406:1a0:705:2::2",
-      "kavlan-12": "2001:660:4406:2a0:705:2::2",
-      "kavlan-13": "2001:660:4406:4a0:705:2::2",
-      "kavlan-14": "2001:660:4406:5a0:705:2::2",
-      "kavlan-16": "2001:660:4406:7a0:705:2::2",
-      "kavlan-18": "2001:660:4406:8a0:705:2::2",
-      "kavlan-2": "2001:660:4406:781:5:2::2",
-      "kavlan-20": "2001:660:4406:3a0:705:2::2",
-      "kavlan-21": "2001:660:4406:6a0:705:2::2",
-      "kavlan-3": "2001:660:4406:782:5:2::2",
-      "kavlan-4": "2001:660:4406:790:5:2::2",
-      "kavlan-5": "2001:660:4406:791:5:2::2",
-      "kavlan-6": "2001:660:4406:792:5:2::2",
-      "kavlan-7": "2001:660:4406:793:5:2::2",
-      "kavlan-8": "2001:660:4406:794:5:2::2",
-      "kavlan-9": "2001:660:4406:795:5:2::2"
+      "kavlan-1": "2001:660:4406:780:5:2:0:2",
+      "kavlan-11": "2001:660:4406:1a0:705:2:0:2",
+      "kavlan-12": "2001:660:4406:2a0:705:2:0:2",
+      "kavlan-13": "2001:660:4406:4a0:705:2:0:2",
+      "kavlan-14": "2001:660:4406:5a0:705:2:0:2",
+      "kavlan-16": "2001:660:4406:7a0:705:2:0:2",
+      "kavlan-18": "2001:660:4406:8a0:705:2:0:2",
+      "kavlan-2": "2001:660:4406:781:5:2:0:2",
+      "kavlan-20": "2001:660:4406:3a0:705:2:0:2",
+      "kavlan-21": "2001:660:4406:6a0:705:2:0:2",
+      "kavlan-3": "2001:660:4406:782:5:2:0:2",
+      "kavlan-4": "2001:660:4406:790:5:2:0:2",
+      "kavlan-5": "2001:660:4406:791:5:2:0:2",
+      "kavlan-6": "2001:660:4406:792:5:2:0:2",
+      "kavlan-7": "2001:660:4406:793:5:2:0:2",
+      "kavlan-8": "2001:660:4406:794:5:2:0:2",
+      "kavlan-9": "2001:660:4406:795:5:2:0:2"
     }
   },
   "main_memory": {
@@ -151,7 +151,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.2",
-      "ip6": "2001:660:4406:700:5:0::2",
+      "ip6": "2001:660:4406:700:5::2",
       "kavlan": true,
       "mac": "a0:36:9f:28:a8:80",
       "management": false,
@@ -173,7 +173,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.102",
-      "ip6": "2001:660:4406:700:5:1::2",
+      "ip6": "2001:660:4406:700:5:1:0:2",
       "kavlan": true,
       "mac": "a0:36:9f:28:a8:82",
       "management": false,
@@ -195,7 +195,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.100.202",
-      "ip6": "2001:660:4406:700:5:2::2",
+      "ip6": "2001:660:4406:700:5:2:0:2",
       "kavlan": true,
       "mac": "f0:4d:a2:73:cc:78",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-3.json b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-3.json
index 2b562e942d5fdc49da532bf1768e196c3e6ac762..0eeebb4e561d045bb4df620c3b68a2fd305a5c2d 100644
--- a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-3.json
+++ b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-3.json
@@ -79,61 +79,61 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:5:0::3",
-      "kavlan-11": "2001:660:4406:1a0:705:0::3",
-      "kavlan-12": "2001:660:4406:2a0:705:0::3",
-      "kavlan-13": "2001:660:4406:4a0:705:0::3",
-      "kavlan-14": "2001:660:4406:5a0:705:0::3",
-      "kavlan-16": "2001:660:4406:7a0:705:0::3",
-      "kavlan-18": "2001:660:4406:8a0:705:0::3",
-      "kavlan-2": "2001:660:4406:781:5:0::3",
-      "kavlan-20": "2001:660:4406:3a0:705:0::3",
-      "kavlan-21": "2001:660:4406:6a0:705:0::3",
-      "kavlan-3": "2001:660:4406:782:5:0::3",
-      "kavlan-4": "2001:660:4406:790:5:0::3",
-      "kavlan-5": "2001:660:4406:791:5:0::3",
-      "kavlan-6": "2001:660:4406:792:5:0::3",
-      "kavlan-7": "2001:660:4406:793:5:0::3",
-      "kavlan-8": "2001:660:4406:794:5:0::3",
-      "kavlan-9": "2001:660:4406:795:5:0::3"
+      "kavlan-1": "2001:660:4406:780:5::3",
+      "kavlan-11": "2001:660:4406:1a0:705::3",
+      "kavlan-12": "2001:660:4406:2a0:705::3",
+      "kavlan-13": "2001:660:4406:4a0:705::3",
+      "kavlan-14": "2001:660:4406:5a0:705::3",
+      "kavlan-16": "2001:660:4406:7a0:705::3",
+      "kavlan-18": "2001:660:4406:8a0:705::3",
+      "kavlan-2": "2001:660:4406:781:5::3",
+      "kavlan-20": "2001:660:4406:3a0:705::3",
+      "kavlan-21": "2001:660:4406:6a0:705::3",
+      "kavlan-3": "2001:660:4406:782:5::3",
+      "kavlan-4": "2001:660:4406:790:5::3",
+      "kavlan-5": "2001:660:4406:791:5::3",
+      "kavlan-6": "2001:660:4406:792:5::3",
+      "kavlan-7": "2001:660:4406:793:5::3",
+      "kavlan-8": "2001:660:4406:794:5::3",
+      "kavlan-9": "2001:660:4406:795:5::3"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:5:1::3",
-      "kavlan-11": "2001:660:4406:1a0:705:1::3",
-      "kavlan-12": "2001:660:4406:2a0:705:1::3",
-      "kavlan-13": "2001:660:4406:4a0:705:1::3",
-      "kavlan-14": "2001:660:4406:5a0:705:1::3",
-      "kavlan-16": "2001:660:4406:7a0:705:1::3",
-      "kavlan-18": "2001:660:4406:8a0:705:1::3",
-      "kavlan-2": "2001:660:4406:781:5:1::3",
-      "kavlan-20": "2001:660:4406:3a0:705:1::3",
-      "kavlan-21": "2001:660:4406:6a0:705:1::3",
-      "kavlan-3": "2001:660:4406:782:5:1::3",
-      "kavlan-4": "2001:660:4406:790:5:1::3",
-      "kavlan-5": "2001:660:4406:791:5:1::3",
-      "kavlan-6": "2001:660:4406:792:5:1::3",
-      "kavlan-7": "2001:660:4406:793:5:1::3",
-      "kavlan-8": "2001:660:4406:794:5:1::3",
-      "kavlan-9": "2001:660:4406:795:5:1::3"
+      "kavlan-1": "2001:660:4406:780:5:1:0:3",
+      "kavlan-11": "2001:660:4406:1a0:705:1:0:3",
+      "kavlan-12": "2001:660:4406:2a0:705:1:0:3",
+      "kavlan-13": "2001:660:4406:4a0:705:1:0:3",
+      "kavlan-14": "2001:660:4406:5a0:705:1:0:3",
+      "kavlan-16": "2001:660:4406:7a0:705:1:0:3",
+      "kavlan-18": "2001:660:4406:8a0:705:1:0:3",
+      "kavlan-2": "2001:660:4406:781:5:1:0:3",
+      "kavlan-20": "2001:660:4406:3a0:705:1:0:3",
+      "kavlan-21": "2001:660:4406:6a0:705:1:0:3",
+      "kavlan-3": "2001:660:4406:782:5:1:0:3",
+      "kavlan-4": "2001:660:4406:790:5:1:0:3",
+      "kavlan-5": "2001:660:4406:791:5:1:0:3",
+      "kavlan-6": "2001:660:4406:792:5:1:0:3",
+      "kavlan-7": "2001:660:4406:793:5:1:0:3",
+      "kavlan-8": "2001:660:4406:794:5:1:0:3",
+      "kavlan-9": "2001:660:4406:795:5:1:0:3"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:780:5:2::3",
-      "kavlan-11": "2001:660:4406:1a0:705:2::3",
-      "kavlan-12": "2001:660:4406:2a0:705:2::3",
-      "kavlan-13": "2001:660:4406:4a0:705:2::3",
-      "kavlan-14": "2001:660:4406:5a0:705:2::3",
-      "kavlan-16": "2001:660:4406:7a0:705:2::3",
-      "kavlan-18": "2001:660:4406:8a0:705:2::3",
-      "kavlan-2": "2001:660:4406:781:5:2::3",
-      "kavlan-20": "2001:660:4406:3a0:705:2::3",
-      "kavlan-21": "2001:660:4406:6a0:705:2::3",
-      "kavlan-3": "2001:660:4406:782:5:2::3",
-      "kavlan-4": "2001:660:4406:790:5:2::3",
-      "kavlan-5": "2001:660:4406:791:5:2::3",
-      "kavlan-6": "2001:660:4406:792:5:2::3",
-      "kavlan-7": "2001:660:4406:793:5:2::3",
-      "kavlan-8": "2001:660:4406:794:5:2::3",
-      "kavlan-9": "2001:660:4406:795:5:2::3"
+      "kavlan-1": "2001:660:4406:780:5:2:0:3",
+      "kavlan-11": "2001:660:4406:1a0:705:2:0:3",
+      "kavlan-12": "2001:660:4406:2a0:705:2:0:3",
+      "kavlan-13": "2001:660:4406:4a0:705:2:0:3",
+      "kavlan-14": "2001:660:4406:5a0:705:2:0:3",
+      "kavlan-16": "2001:660:4406:7a0:705:2:0:3",
+      "kavlan-18": "2001:660:4406:8a0:705:2:0:3",
+      "kavlan-2": "2001:660:4406:781:5:2:0:3",
+      "kavlan-20": "2001:660:4406:3a0:705:2:0:3",
+      "kavlan-21": "2001:660:4406:6a0:705:2:0:3",
+      "kavlan-3": "2001:660:4406:782:5:2:0:3",
+      "kavlan-4": "2001:660:4406:790:5:2:0:3",
+      "kavlan-5": "2001:660:4406:791:5:2:0:3",
+      "kavlan-6": "2001:660:4406:792:5:2:0:3",
+      "kavlan-7": "2001:660:4406:793:5:2:0:3",
+      "kavlan-8": "2001:660:4406:794:5:2:0:3",
+      "kavlan-9": "2001:660:4406:795:5:2:0:3"
     }
   },
   "main_memory": {
@@ -151,7 +151,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.3",
-      "ip6": "2001:660:4406:700:5:0::3",
+      "ip6": "2001:660:4406:700:5::3",
       "kavlan": true,
       "mac": "a0:36:9f:28:a6:d4",
       "management": false,
@@ -173,7 +173,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.103",
-      "ip6": "2001:660:4406:700:5:1::3",
+      "ip6": "2001:660:4406:700:5:1:0:3",
       "kavlan": true,
       "mac": "a0:36:9f:28:a6:d6",
       "management": false,
@@ -195,7 +195,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.100.203",
-      "ip6": "2001:660:4406:700:5:2::3",
+      "ip6": "2001:660:4406:700:5:2:0:3",
       "kavlan": true,
       "mac": "f0:4d:a2:74:06:b6",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-4.json b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-4.json
index a5a5c070f41d2d8b5db3bbee26a1472d3138f6b8..b4a47759b8776748fe956bad26e5d77d33ed5b82 100644
--- a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-4.json
+++ b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-4.json
@@ -79,61 +79,61 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:5:0::4",
-      "kavlan-11": "2001:660:4406:1a0:705:0::4",
-      "kavlan-12": "2001:660:4406:2a0:705:0::4",
-      "kavlan-13": "2001:660:4406:4a0:705:0::4",
-      "kavlan-14": "2001:660:4406:5a0:705:0::4",
-      "kavlan-16": "2001:660:4406:7a0:705:0::4",
-      "kavlan-18": "2001:660:4406:8a0:705:0::4",
-      "kavlan-2": "2001:660:4406:781:5:0::4",
-      "kavlan-20": "2001:660:4406:3a0:705:0::4",
-      "kavlan-21": "2001:660:4406:6a0:705:0::4",
-      "kavlan-3": "2001:660:4406:782:5:0::4",
-      "kavlan-4": "2001:660:4406:790:5:0::4",
-      "kavlan-5": "2001:660:4406:791:5:0::4",
-      "kavlan-6": "2001:660:4406:792:5:0::4",
-      "kavlan-7": "2001:660:4406:793:5:0::4",
-      "kavlan-8": "2001:660:4406:794:5:0::4",
-      "kavlan-9": "2001:660:4406:795:5:0::4"
+      "kavlan-1": "2001:660:4406:780:5::4",
+      "kavlan-11": "2001:660:4406:1a0:705::4",
+      "kavlan-12": "2001:660:4406:2a0:705::4",
+      "kavlan-13": "2001:660:4406:4a0:705::4",
+      "kavlan-14": "2001:660:4406:5a0:705::4",
+      "kavlan-16": "2001:660:4406:7a0:705::4",
+      "kavlan-18": "2001:660:4406:8a0:705::4",
+      "kavlan-2": "2001:660:4406:781:5::4",
+      "kavlan-20": "2001:660:4406:3a0:705::4",
+      "kavlan-21": "2001:660:4406:6a0:705::4",
+      "kavlan-3": "2001:660:4406:782:5::4",
+      "kavlan-4": "2001:660:4406:790:5::4",
+      "kavlan-5": "2001:660:4406:791:5::4",
+      "kavlan-6": "2001:660:4406:792:5::4",
+      "kavlan-7": "2001:660:4406:793:5::4",
+      "kavlan-8": "2001:660:4406:794:5::4",
+      "kavlan-9": "2001:660:4406:795:5::4"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:5:1::4",
-      "kavlan-11": "2001:660:4406:1a0:705:1::4",
-      "kavlan-12": "2001:660:4406:2a0:705:1::4",
-      "kavlan-13": "2001:660:4406:4a0:705:1::4",
-      "kavlan-14": "2001:660:4406:5a0:705:1::4",
-      "kavlan-16": "2001:660:4406:7a0:705:1::4",
-      "kavlan-18": "2001:660:4406:8a0:705:1::4",
-      "kavlan-2": "2001:660:4406:781:5:1::4",
-      "kavlan-20": "2001:660:4406:3a0:705:1::4",
-      "kavlan-21": "2001:660:4406:6a0:705:1::4",
-      "kavlan-3": "2001:660:4406:782:5:1::4",
-      "kavlan-4": "2001:660:4406:790:5:1::4",
-      "kavlan-5": "2001:660:4406:791:5:1::4",
-      "kavlan-6": "2001:660:4406:792:5:1::4",
-      "kavlan-7": "2001:660:4406:793:5:1::4",
-      "kavlan-8": "2001:660:4406:794:5:1::4",
-      "kavlan-9": "2001:660:4406:795:5:1::4"
+      "kavlan-1": "2001:660:4406:780:5:1:0:4",
+      "kavlan-11": "2001:660:4406:1a0:705:1:0:4",
+      "kavlan-12": "2001:660:4406:2a0:705:1:0:4",
+      "kavlan-13": "2001:660:4406:4a0:705:1:0:4",
+      "kavlan-14": "2001:660:4406:5a0:705:1:0:4",
+      "kavlan-16": "2001:660:4406:7a0:705:1:0:4",
+      "kavlan-18": "2001:660:4406:8a0:705:1:0:4",
+      "kavlan-2": "2001:660:4406:781:5:1:0:4",
+      "kavlan-20": "2001:660:4406:3a0:705:1:0:4",
+      "kavlan-21": "2001:660:4406:6a0:705:1:0:4",
+      "kavlan-3": "2001:660:4406:782:5:1:0:4",
+      "kavlan-4": "2001:660:4406:790:5:1:0:4",
+      "kavlan-5": "2001:660:4406:791:5:1:0:4",
+      "kavlan-6": "2001:660:4406:792:5:1:0:4",
+      "kavlan-7": "2001:660:4406:793:5:1:0:4",
+      "kavlan-8": "2001:660:4406:794:5:1:0:4",
+      "kavlan-9": "2001:660:4406:795:5:1:0:4"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:780:5:2::4",
-      "kavlan-11": "2001:660:4406:1a0:705:2::4",
-      "kavlan-12": "2001:660:4406:2a0:705:2::4",
-      "kavlan-13": "2001:660:4406:4a0:705:2::4",
-      "kavlan-14": "2001:660:4406:5a0:705:2::4",
-      "kavlan-16": "2001:660:4406:7a0:705:2::4",
-      "kavlan-18": "2001:660:4406:8a0:705:2::4",
-      "kavlan-2": "2001:660:4406:781:5:2::4",
-      "kavlan-20": "2001:660:4406:3a0:705:2::4",
-      "kavlan-21": "2001:660:4406:6a0:705:2::4",
-      "kavlan-3": "2001:660:4406:782:5:2::4",
-      "kavlan-4": "2001:660:4406:790:5:2::4",
-      "kavlan-5": "2001:660:4406:791:5:2::4",
-      "kavlan-6": "2001:660:4406:792:5:2::4",
-      "kavlan-7": "2001:660:4406:793:5:2::4",
-      "kavlan-8": "2001:660:4406:794:5:2::4",
-      "kavlan-9": "2001:660:4406:795:5:2::4"
+      "kavlan-1": "2001:660:4406:780:5:2:0:4",
+      "kavlan-11": "2001:660:4406:1a0:705:2:0:4",
+      "kavlan-12": "2001:660:4406:2a0:705:2:0:4",
+      "kavlan-13": "2001:660:4406:4a0:705:2:0:4",
+      "kavlan-14": "2001:660:4406:5a0:705:2:0:4",
+      "kavlan-16": "2001:660:4406:7a0:705:2:0:4",
+      "kavlan-18": "2001:660:4406:8a0:705:2:0:4",
+      "kavlan-2": "2001:660:4406:781:5:2:0:4",
+      "kavlan-20": "2001:660:4406:3a0:705:2:0:4",
+      "kavlan-21": "2001:660:4406:6a0:705:2:0:4",
+      "kavlan-3": "2001:660:4406:782:5:2:0:4",
+      "kavlan-4": "2001:660:4406:790:5:2:0:4",
+      "kavlan-5": "2001:660:4406:791:5:2:0:4",
+      "kavlan-6": "2001:660:4406:792:5:2:0:4",
+      "kavlan-7": "2001:660:4406:793:5:2:0:4",
+      "kavlan-8": "2001:660:4406:794:5:2:0:4",
+      "kavlan-9": "2001:660:4406:795:5:2:0:4"
     }
   },
   "main_memory": {
@@ -151,7 +151,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.4",
-      "ip6": "2001:660:4406:700:5:0::4",
+      "ip6": "2001:660:4406:700:5::4",
       "kavlan": true,
       "mac": "a0:36:9f:28:a6:b0",
       "management": false,
@@ -173,7 +173,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.104",
-      "ip6": "2001:660:4406:700:5:1::4",
+      "ip6": "2001:660:4406:700:5:1:0:4",
       "kavlan": true,
       "mac": "a0:36:9f:28:a6:b2",
       "management": false,
@@ -195,7 +195,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.100.204",
-      "ip6": "2001:660:4406:700:5:2::4",
+      "ip6": "2001:660:4406:700:5:2:0:4",
       "kavlan": true,
       "mac": "f0:4d:a2:73:cf:2a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-5.json b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-5.json
index cfc0f9c6e0733339d3fd5a5f838806121ccc7a34..86c0aa3678f52ead5fe3eab0dc4ec0b23159e289 100644
--- a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-5.json
+++ b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-5.json
@@ -79,61 +79,61 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:5:0::5",
-      "kavlan-11": "2001:660:4406:1a0:705:0::5",
-      "kavlan-12": "2001:660:4406:2a0:705:0::5",
-      "kavlan-13": "2001:660:4406:4a0:705:0::5",
-      "kavlan-14": "2001:660:4406:5a0:705:0::5",
-      "kavlan-16": "2001:660:4406:7a0:705:0::5",
-      "kavlan-18": "2001:660:4406:8a0:705:0::5",
-      "kavlan-2": "2001:660:4406:781:5:0::5",
-      "kavlan-20": "2001:660:4406:3a0:705:0::5",
-      "kavlan-21": "2001:660:4406:6a0:705:0::5",
-      "kavlan-3": "2001:660:4406:782:5:0::5",
-      "kavlan-4": "2001:660:4406:790:5:0::5",
-      "kavlan-5": "2001:660:4406:791:5:0::5",
-      "kavlan-6": "2001:660:4406:792:5:0::5",
-      "kavlan-7": "2001:660:4406:793:5:0::5",
-      "kavlan-8": "2001:660:4406:794:5:0::5",
-      "kavlan-9": "2001:660:4406:795:5:0::5"
+      "kavlan-1": "2001:660:4406:780:5::5",
+      "kavlan-11": "2001:660:4406:1a0:705::5",
+      "kavlan-12": "2001:660:4406:2a0:705::5",
+      "kavlan-13": "2001:660:4406:4a0:705::5",
+      "kavlan-14": "2001:660:4406:5a0:705::5",
+      "kavlan-16": "2001:660:4406:7a0:705::5",
+      "kavlan-18": "2001:660:4406:8a0:705::5",
+      "kavlan-2": "2001:660:4406:781:5::5",
+      "kavlan-20": "2001:660:4406:3a0:705::5",
+      "kavlan-21": "2001:660:4406:6a0:705::5",
+      "kavlan-3": "2001:660:4406:782:5::5",
+      "kavlan-4": "2001:660:4406:790:5::5",
+      "kavlan-5": "2001:660:4406:791:5::5",
+      "kavlan-6": "2001:660:4406:792:5::5",
+      "kavlan-7": "2001:660:4406:793:5::5",
+      "kavlan-8": "2001:660:4406:794:5::5",
+      "kavlan-9": "2001:660:4406:795:5::5"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:5:1::5",
-      "kavlan-11": "2001:660:4406:1a0:705:1::5",
-      "kavlan-12": "2001:660:4406:2a0:705:1::5",
-      "kavlan-13": "2001:660:4406:4a0:705:1::5",
-      "kavlan-14": "2001:660:4406:5a0:705:1::5",
-      "kavlan-16": "2001:660:4406:7a0:705:1::5",
-      "kavlan-18": "2001:660:4406:8a0:705:1::5",
-      "kavlan-2": "2001:660:4406:781:5:1::5",
-      "kavlan-20": "2001:660:4406:3a0:705:1::5",
-      "kavlan-21": "2001:660:4406:6a0:705:1::5",
-      "kavlan-3": "2001:660:4406:782:5:1::5",
-      "kavlan-4": "2001:660:4406:790:5:1::5",
-      "kavlan-5": "2001:660:4406:791:5:1::5",
-      "kavlan-6": "2001:660:4406:792:5:1::5",
-      "kavlan-7": "2001:660:4406:793:5:1::5",
-      "kavlan-8": "2001:660:4406:794:5:1::5",
-      "kavlan-9": "2001:660:4406:795:5:1::5"
+      "kavlan-1": "2001:660:4406:780:5:1:0:5",
+      "kavlan-11": "2001:660:4406:1a0:705:1:0:5",
+      "kavlan-12": "2001:660:4406:2a0:705:1:0:5",
+      "kavlan-13": "2001:660:4406:4a0:705:1:0:5",
+      "kavlan-14": "2001:660:4406:5a0:705:1:0:5",
+      "kavlan-16": "2001:660:4406:7a0:705:1:0:5",
+      "kavlan-18": "2001:660:4406:8a0:705:1:0:5",
+      "kavlan-2": "2001:660:4406:781:5:1:0:5",
+      "kavlan-20": "2001:660:4406:3a0:705:1:0:5",
+      "kavlan-21": "2001:660:4406:6a0:705:1:0:5",
+      "kavlan-3": "2001:660:4406:782:5:1:0:5",
+      "kavlan-4": "2001:660:4406:790:5:1:0:5",
+      "kavlan-5": "2001:660:4406:791:5:1:0:5",
+      "kavlan-6": "2001:660:4406:792:5:1:0:5",
+      "kavlan-7": "2001:660:4406:793:5:1:0:5",
+      "kavlan-8": "2001:660:4406:794:5:1:0:5",
+      "kavlan-9": "2001:660:4406:795:5:1:0:5"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:780:5:2::5",
-      "kavlan-11": "2001:660:4406:1a0:705:2::5",
-      "kavlan-12": "2001:660:4406:2a0:705:2::5",
-      "kavlan-13": "2001:660:4406:4a0:705:2::5",
-      "kavlan-14": "2001:660:4406:5a0:705:2::5",
-      "kavlan-16": "2001:660:4406:7a0:705:2::5",
-      "kavlan-18": "2001:660:4406:8a0:705:2::5",
-      "kavlan-2": "2001:660:4406:781:5:2::5",
-      "kavlan-20": "2001:660:4406:3a0:705:2::5",
-      "kavlan-21": "2001:660:4406:6a0:705:2::5",
-      "kavlan-3": "2001:660:4406:782:5:2::5",
-      "kavlan-4": "2001:660:4406:790:5:2::5",
-      "kavlan-5": "2001:660:4406:791:5:2::5",
-      "kavlan-6": "2001:660:4406:792:5:2::5",
-      "kavlan-7": "2001:660:4406:793:5:2::5",
-      "kavlan-8": "2001:660:4406:794:5:2::5",
-      "kavlan-9": "2001:660:4406:795:5:2::5"
+      "kavlan-1": "2001:660:4406:780:5:2:0:5",
+      "kavlan-11": "2001:660:4406:1a0:705:2:0:5",
+      "kavlan-12": "2001:660:4406:2a0:705:2:0:5",
+      "kavlan-13": "2001:660:4406:4a0:705:2:0:5",
+      "kavlan-14": "2001:660:4406:5a0:705:2:0:5",
+      "kavlan-16": "2001:660:4406:7a0:705:2:0:5",
+      "kavlan-18": "2001:660:4406:8a0:705:2:0:5",
+      "kavlan-2": "2001:660:4406:781:5:2:0:5",
+      "kavlan-20": "2001:660:4406:3a0:705:2:0:5",
+      "kavlan-21": "2001:660:4406:6a0:705:2:0:5",
+      "kavlan-3": "2001:660:4406:782:5:2:0:5",
+      "kavlan-4": "2001:660:4406:790:5:2:0:5",
+      "kavlan-5": "2001:660:4406:791:5:2:0:5",
+      "kavlan-6": "2001:660:4406:792:5:2:0:5",
+      "kavlan-7": "2001:660:4406:793:5:2:0:5",
+      "kavlan-8": "2001:660:4406:794:5:2:0:5",
+      "kavlan-9": "2001:660:4406:795:5:2:0:5"
     }
   },
   "main_memory": {
@@ -151,7 +151,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.5",
-      "ip6": "2001:660:4406:700:5:0::5",
+      "ip6": "2001:660:4406:700:5::5",
       "kavlan": true,
       "mac": "a0:36:9f:28:a7:b8",
       "management": false,
@@ -173,7 +173,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.105",
-      "ip6": "2001:660:4406:700:5:1::5",
+      "ip6": "2001:660:4406:700:5:1:0:5",
       "kavlan": true,
       "mac": "a0:36:9f:28:a7:ba",
       "management": false,
@@ -195,7 +195,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.100.205",
-      "ip6": "2001:660:4406:700:5:2::5",
+      "ip6": "2001:660:4406:700:5:2:0:5",
       "kavlan": true,
       "mac": "f0:4d:a2:73:cc:6f",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-6.json b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-6.json
index 298e37a293a80c68a97273587808a2922b2c83e7..151cc62d3034aed8fd1f9c8c4fe2086d2feb3edb 100644
--- a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-6.json
+++ b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-6.json
@@ -79,61 +79,61 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:5:0::6",
-      "kavlan-11": "2001:660:4406:1a0:705:0::6",
-      "kavlan-12": "2001:660:4406:2a0:705:0::6",
-      "kavlan-13": "2001:660:4406:4a0:705:0::6",
-      "kavlan-14": "2001:660:4406:5a0:705:0::6",
-      "kavlan-16": "2001:660:4406:7a0:705:0::6",
-      "kavlan-18": "2001:660:4406:8a0:705:0::6",
-      "kavlan-2": "2001:660:4406:781:5:0::6",
-      "kavlan-20": "2001:660:4406:3a0:705:0::6",
-      "kavlan-21": "2001:660:4406:6a0:705:0::6",
-      "kavlan-3": "2001:660:4406:782:5:0::6",
-      "kavlan-4": "2001:660:4406:790:5:0::6",
-      "kavlan-5": "2001:660:4406:791:5:0::6",
-      "kavlan-6": "2001:660:4406:792:5:0::6",
-      "kavlan-7": "2001:660:4406:793:5:0::6",
-      "kavlan-8": "2001:660:4406:794:5:0::6",
-      "kavlan-9": "2001:660:4406:795:5:0::6"
+      "kavlan-1": "2001:660:4406:780:5::6",
+      "kavlan-11": "2001:660:4406:1a0:705::6",
+      "kavlan-12": "2001:660:4406:2a0:705::6",
+      "kavlan-13": "2001:660:4406:4a0:705::6",
+      "kavlan-14": "2001:660:4406:5a0:705::6",
+      "kavlan-16": "2001:660:4406:7a0:705::6",
+      "kavlan-18": "2001:660:4406:8a0:705::6",
+      "kavlan-2": "2001:660:4406:781:5::6",
+      "kavlan-20": "2001:660:4406:3a0:705::6",
+      "kavlan-21": "2001:660:4406:6a0:705::6",
+      "kavlan-3": "2001:660:4406:782:5::6",
+      "kavlan-4": "2001:660:4406:790:5::6",
+      "kavlan-5": "2001:660:4406:791:5::6",
+      "kavlan-6": "2001:660:4406:792:5::6",
+      "kavlan-7": "2001:660:4406:793:5::6",
+      "kavlan-8": "2001:660:4406:794:5::6",
+      "kavlan-9": "2001:660:4406:795:5::6"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:5:1::6",
-      "kavlan-11": "2001:660:4406:1a0:705:1::6",
-      "kavlan-12": "2001:660:4406:2a0:705:1::6",
-      "kavlan-13": "2001:660:4406:4a0:705:1::6",
-      "kavlan-14": "2001:660:4406:5a0:705:1::6",
-      "kavlan-16": "2001:660:4406:7a0:705:1::6",
-      "kavlan-18": "2001:660:4406:8a0:705:1::6",
-      "kavlan-2": "2001:660:4406:781:5:1::6",
-      "kavlan-20": "2001:660:4406:3a0:705:1::6",
-      "kavlan-21": "2001:660:4406:6a0:705:1::6",
-      "kavlan-3": "2001:660:4406:782:5:1::6",
-      "kavlan-4": "2001:660:4406:790:5:1::6",
-      "kavlan-5": "2001:660:4406:791:5:1::6",
-      "kavlan-6": "2001:660:4406:792:5:1::6",
-      "kavlan-7": "2001:660:4406:793:5:1::6",
-      "kavlan-8": "2001:660:4406:794:5:1::6",
-      "kavlan-9": "2001:660:4406:795:5:1::6"
+      "kavlan-1": "2001:660:4406:780:5:1:0:6",
+      "kavlan-11": "2001:660:4406:1a0:705:1:0:6",
+      "kavlan-12": "2001:660:4406:2a0:705:1:0:6",
+      "kavlan-13": "2001:660:4406:4a0:705:1:0:6",
+      "kavlan-14": "2001:660:4406:5a0:705:1:0:6",
+      "kavlan-16": "2001:660:4406:7a0:705:1:0:6",
+      "kavlan-18": "2001:660:4406:8a0:705:1:0:6",
+      "kavlan-2": "2001:660:4406:781:5:1:0:6",
+      "kavlan-20": "2001:660:4406:3a0:705:1:0:6",
+      "kavlan-21": "2001:660:4406:6a0:705:1:0:6",
+      "kavlan-3": "2001:660:4406:782:5:1:0:6",
+      "kavlan-4": "2001:660:4406:790:5:1:0:6",
+      "kavlan-5": "2001:660:4406:791:5:1:0:6",
+      "kavlan-6": "2001:660:4406:792:5:1:0:6",
+      "kavlan-7": "2001:660:4406:793:5:1:0:6",
+      "kavlan-8": "2001:660:4406:794:5:1:0:6",
+      "kavlan-9": "2001:660:4406:795:5:1:0:6"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:780:5:2::6",
-      "kavlan-11": "2001:660:4406:1a0:705:2::6",
-      "kavlan-12": "2001:660:4406:2a0:705:2::6",
-      "kavlan-13": "2001:660:4406:4a0:705:2::6",
-      "kavlan-14": "2001:660:4406:5a0:705:2::6",
-      "kavlan-16": "2001:660:4406:7a0:705:2::6",
-      "kavlan-18": "2001:660:4406:8a0:705:2::6",
-      "kavlan-2": "2001:660:4406:781:5:2::6",
-      "kavlan-20": "2001:660:4406:3a0:705:2::6",
-      "kavlan-21": "2001:660:4406:6a0:705:2::6",
-      "kavlan-3": "2001:660:4406:782:5:2::6",
-      "kavlan-4": "2001:660:4406:790:5:2::6",
-      "kavlan-5": "2001:660:4406:791:5:2::6",
-      "kavlan-6": "2001:660:4406:792:5:2::6",
-      "kavlan-7": "2001:660:4406:793:5:2::6",
-      "kavlan-8": "2001:660:4406:794:5:2::6",
-      "kavlan-9": "2001:660:4406:795:5:2::6"
+      "kavlan-1": "2001:660:4406:780:5:2:0:6",
+      "kavlan-11": "2001:660:4406:1a0:705:2:0:6",
+      "kavlan-12": "2001:660:4406:2a0:705:2:0:6",
+      "kavlan-13": "2001:660:4406:4a0:705:2:0:6",
+      "kavlan-14": "2001:660:4406:5a0:705:2:0:6",
+      "kavlan-16": "2001:660:4406:7a0:705:2:0:6",
+      "kavlan-18": "2001:660:4406:8a0:705:2:0:6",
+      "kavlan-2": "2001:660:4406:781:5:2:0:6",
+      "kavlan-20": "2001:660:4406:3a0:705:2:0:6",
+      "kavlan-21": "2001:660:4406:6a0:705:2:0:6",
+      "kavlan-3": "2001:660:4406:782:5:2:0:6",
+      "kavlan-4": "2001:660:4406:790:5:2:0:6",
+      "kavlan-5": "2001:660:4406:791:5:2:0:6",
+      "kavlan-6": "2001:660:4406:792:5:2:0:6",
+      "kavlan-7": "2001:660:4406:793:5:2:0:6",
+      "kavlan-8": "2001:660:4406:794:5:2:0:6",
+      "kavlan-9": "2001:660:4406:795:5:2:0:6"
     }
   },
   "main_memory": {
@@ -151,7 +151,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.6",
-      "ip6": "2001:660:4406:700:5:0::6",
+      "ip6": "2001:660:4406:700:5::6",
       "kavlan": true,
       "mac": "a0:36:9f:28:a7:b4",
       "management": false,
@@ -173,7 +173,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.106",
-      "ip6": "2001:660:4406:700:5:1::6",
+      "ip6": "2001:660:4406:700:5:1:0:6",
       "kavlan": true,
       "mac": "a0:36:9f:28:a7:b6",
       "management": false,
@@ -195,7 +195,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.100.206",
-      "ip6": "2001:660:4406:700:5:2::6",
+      "ip6": "2001:660:4406:700:5:2:0:6",
       "kavlan": true,
       "mac": "f0:4d:a2:73:ce:22",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-7.json b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-7.json
index b5debc4e4887164964b856ba763ac3d902273f41..fcd84be2a5b5ecdd93726fc2dae4a82808eed848 100644
--- a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-7.json
+++ b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-7.json
@@ -79,61 +79,61 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:5:0::7",
-      "kavlan-11": "2001:660:4406:1a0:705:0::7",
-      "kavlan-12": "2001:660:4406:2a0:705:0::7",
-      "kavlan-13": "2001:660:4406:4a0:705:0::7",
-      "kavlan-14": "2001:660:4406:5a0:705:0::7",
-      "kavlan-16": "2001:660:4406:7a0:705:0::7",
-      "kavlan-18": "2001:660:4406:8a0:705:0::7",
-      "kavlan-2": "2001:660:4406:781:5:0::7",
-      "kavlan-20": "2001:660:4406:3a0:705:0::7",
-      "kavlan-21": "2001:660:4406:6a0:705:0::7",
-      "kavlan-3": "2001:660:4406:782:5:0::7",
-      "kavlan-4": "2001:660:4406:790:5:0::7",
-      "kavlan-5": "2001:660:4406:791:5:0::7",
-      "kavlan-6": "2001:660:4406:792:5:0::7",
-      "kavlan-7": "2001:660:4406:793:5:0::7",
-      "kavlan-8": "2001:660:4406:794:5:0::7",
-      "kavlan-9": "2001:660:4406:795:5:0::7"
+      "kavlan-1": "2001:660:4406:780:5::7",
+      "kavlan-11": "2001:660:4406:1a0:705::7",
+      "kavlan-12": "2001:660:4406:2a0:705::7",
+      "kavlan-13": "2001:660:4406:4a0:705::7",
+      "kavlan-14": "2001:660:4406:5a0:705::7",
+      "kavlan-16": "2001:660:4406:7a0:705::7",
+      "kavlan-18": "2001:660:4406:8a0:705::7",
+      "kavlan-2": "2001:660:4406:781:5::7",
+      "kavlan-20": "2001:660:4406:3a0:705::7",
+      "kavlan-21": "2001:660:4406:6a0:705::7",
+      "kavlan-3": "2001:660:4406:782:5::7",
+      "kavlan-4": "2001:660:4406:790:5::7",
+      "kavlan-5": "2001:660:4406:791:5::7",
+      "kavlan-6": "2001:660:4406:792:5::7",
+      "kavlan-7": "2001:660:4406:793:5::7",
+      "kavlan-8": "2001:660:4406:794:5::7",
+      "kavlan-9": "2001:660:4406:795:5::7"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:5:1::7",
-      "kavlan-11": "2001:660:4406:1a0:705:1::7",
-      "kavlan-12": "2001:660:4406:2a0:705:1::7",
-      "kavlan-13": "2001:660:4406:4a0:705:1::7",
-      "kavlan-14": "2001:660:4406:5a0:705:1::7",
-      "kavlan-16": "2001:660:4406:7a0:705:1::7",
-      "kavlan-18": "2001:660:4406:8a0:705:1::7",
-      "kavlan-2": "2001:660:4406:781:5:1::7",
-      "kavlan-20": "2001:660:4406:3a0:705:1::7",
-      "kavlan-21": "2001:660:4406:6a0:705:1::7",
-      "kavlan-3": "2001:660:4406:782:5:1::7",
-      "kavlan-4": "2001:660:4406:790:5:1::7",
-      "kavlan-5": "2001:660:4406:791:5:1::7",
-      "kavlan-6": "2001:660:4406:792:5:1::7",
-      "kavlan-7": "2001:660:4406:793:5:1::7",
-      "kavlan-8": "2001:660:4406:794:5:1::7",
-      "kavlan-9": "2001:660:4406:795:5:1::7"
+      "kavlan-1": "2001:660:4406:780:5:1:0:7",
+      "kavlan-11": "2001:660:4406:1a0:705:1:0:7",
+      "kavlan-12": "2001:660:4406:2a0:705:1:0:7",
+      "kavlan-13": "2001:660:4406:4a0:705:1:0:7",
+      "kavlan-14": "2001:660:4406:5a0:705:1:0:7",
+      "kavlan-16": "2001:660:4406:7a0:705:1:0:7",
+      "kavlan-18": "2001:660:4406:8a0:705:1:0:7",
+      "kavlan-2": "2001:660:4406:781:5:1:0:7",
+      "kavlan-20": "2001:660:4406:3a0:705:1:0:7",
+      "kavlan-21": "2001:660:4406:6a0:705:1:0:7",
+      "kavlan-3": "2001:660:4406:782:5:1:0:7",
+      "kavlan-4": "2001:660:4406:790:5:1:0:7",
+      "kavlan-5": "2001:660:4406:791:5:1:0:7",
+      "kavlan-6": "2001:660:4406:792:5:1:0:7",
+      "kavlan-7": "2001:660:4406:793:5:1:0:7",
+      "kavlan-8": "2001:660:4406:794:5:1:0:7",
+      "kavlan-9": "2001:660:4406:795:5:1:0:7"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:780:5:2::7",
-      "kavlan-11": "2001:660:4406:1a0:705:2::7",
-      "kavlan-12": "2001:660:4406:2a0:705:2::7",
-      "kavlan-13": "2001:660:4406:4a0:705:2::7",
-      "kavlan-14": "2001:660:4406:5a0:705:2::7",
-      "kavlan-16": "2001:660:4406:7a0:705:2::7",
-      "kavlan-18": "2001:660:4406:8a0:705:2::7",
-      "kavlan-2": "2001:660:4406:781:5:2::7",
-      "kavlan-20": "2001:660:4406:3a0:705:2::7",
-      "kavlan-21": "2001:660:4406:6a0:705:2::7",
-      "kavlan-3": "2001:660:4406:782:5:2::7",
-      "kavlan-4": "2001:660:4406:790:5:2::7",
-      "kavlan-5": "2001:660:4406:791:5:2::7",
-      "kavlan-6": "2001:660:4406:792:5:2::7",
-      "kavlan-7": "2001:660:4406:793:5:2::7",
-      "kavlan-8": "2001:660:4406:794:5:2::7",
-      "kavlan-9": "2001:660:4406:795:5:2::7"
+      "kavlan-1": "2001:660:4406:780:5:2:0:7",
+      "kavlan-11": "2001:660:4406:1a0:705:2:0:7",
+      "kavlan-12": "2001:660:4406:2a0:705:2:0:7",
+      "kavlan-13": "2001:660:4406:4a0:705:2:0:7",
+      "kavlan-14": "2001:660:4406:5a0:705:2:0:7",
+      "kavlan-16": "2001:660:4406:7a0:705:2:0:7",
+      "kavlan-18": "2001:660:4406:8a0:705:2:0:7",
+      "kavlan-2": "2001:660:4406:781:5:2:0:7",
+      "kavlan-20": "2001:660:4406:3a0:705:2:0:7",
+      "kavlan-21": "2001:660:4406:6a0:705:2:0:7",
+      "kavlan-3": "2001:660:4406:782:5:2:0:7",
+      "kavlan-4": "2001:660:4406:790:5:2:0:7",
+      "kavlan-5": "2001:660:4406:791:5:2:0:7",
+      "kavlan-6": "2001:660:4406:792:5:2:0:7",
+      "kavlan-7": "2001:660:4406:793:5:2:0:7",
+      "kavlan-8": "2001:660:4406:794:5:2:0:7",
+      "kavlan-9": "2001:660:4406:795:5:2:0:7"
     }
   },
   "main_memory": {
@@ -151,7 +151,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.7",
-      "ip6": "2001:660:4406:700:5:0::7",
+      "ip6": "2001:660:4406:700:5::7",
       "kavlan": true,
       "mac": "a0:36:9f:28:a9:14",
       "management": false,
@@ -173,7 +173,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.107",
-      "ip6": "2001:660:4406:700:5:1::7",
+      "ip6": "2001:660:4406:700:5:1:0:7",
       "kavlan": true,
       "mac": "a0:36:9f:28:a9:16",
       "management": false,
@@ -195,7 +195,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.100.207",
-      "ip6": "2001:660:4406:700:5:2::7",
+      "ip6": "2001:660:4406:700:5:2:0:7",
       "kavlan": true,
       "mac": "f0:4d:a2:73:ca:ad",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-8.json b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-8.json
index 0a8a5101fb5bd5ee106d5b71484b9a951e9788ad..9b65bd6d21fc53d7ebb8724845dfcf0fa60807f9 100644
--- a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-8.json
+++ b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-8.json
@@ -79,61 +79,61 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:5:0::8",
-      "kavlan-11": "2001:660:4406:1a0:705:0::8",
-      "kavlan-12": "2001:660:4406:2a0:705:0::8",
-      "kavlan-13": "2001:660:4406:4a0:705:0::8",
-      "kavlan-14": "2001:660:4406:5a0:705:0::8",
-      "kavlan-16": "2001:660:4406:7a0:705:0::8",
-      "kavlan-18": "2001:660:4406:8a0:705:0::8",
-      "kavlan-2": "2001:660:4406:781:5:0::8",
-      "kavlan-20": "2001:660:4406:3a0:705:0::8",
-      "kavlan-21": "2001:660:4406:6a0:705:0::8",
-      "kavlan-3": "2001:660:4406:782:5:0::8",
-      "kavlan-4": "2001:660:4406:790:5:0::8",
-      "kavlan-5": "2001:660:4406:791:5:0::8",
-      "kavlan-6": "2001:660:4406:792:5:0::8",
-      "kavlan-7": "2001:660:4406:793:5:0::8",
-      "kavlan-8": "2001:660:4406:794:5:0::8",
-      "kavlan-9": "2001:660:4406:795:5:0::8"
+      "kavlan-1": "2001:660:4406:780:5::8",
+      "kavlan-11": "2001:660:4406:1a0:705::8",
+      "kavlan-12": "2001:660:4406:2a0:705::8",
+      "kavlan-13": "2001:660:4406:4a0:705::8",
+      "kavlan-14": "2001:660:4406:5a0:705::8",
+      "kavlan-16": "2001:660:4406:7a0:705::8",
+      "kavlan-18": "2001:660:4406:8a0:705::8",
+      "kavlan-2": "2001:660:4406:781:5::8",
+      "kavlan-20": "2001:660:4406:3a0:705::8",
+      "kavlan-21": "2001:660:4406:6a0:705::8",
+      "kavlan-3": "2001:660:4406:782:5::8",
+      "kavlan-4": "2001:660:4406:790:5::8",
+      "kavlan-5": "2001:660:4406:791:5::8",
+      "kavlan-6": "2001:660:4406:792:5::8",
+      "kavlan-7": "2001:660:4406:793:5::8",
+      "kavlan-8": "2001:660:4406:794:5::8",
+      "kavlan-9": "2001:660:4406:795:5::8"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:5:1::8",
-      "kavlan-11": "2001:660:4406:1a0:705:1::8",
-      "kavlan-12": "2001:660:4406:2a0:705:1::8",
-      "kavlan-13": "2001:660:4406:4a0:705:1::8",
-      "kavlan-14": "2001:660:4406:5a0:705:1::8",
-      "kavlan-16": "2001:660:4406:7a0:705:1::8",
-      "kavlan-18": "2001:660:4406:8a0:705:1::8",
-      "kavlan-2": "2001:660:4406:781:5:1::8",
-      "kavlan-20": "2001:660:4406:3a0:705:1::8",
-      "kavlan-21": "2001:660:4406:6a0:705:1::8",
-      "kavlan-3": "2001:660:4406:782:5:1::8",
-      "kavlan-4": "2001:660:4406:790:5:1::8",
-      "kavlan-5": "2001:660:4406:791:5:1::8",
-      "kavlan-6": "2001:660:4406:792:5:1::8",
-      "kavlan-7": "2001:660:4406:793:5:1::8",
-      "kavlan-8": "2001:660:4406:794:5:1::8",
-      "kavlan-9": "2001:660:4406:795:5:1::8"
+      "kavlan-1": "2001:660:4406:780:5:1:0:8",
+      "kavlan-11": "2001:660:4406:1a0:705:1:0:8",
+      "kavlan-12": "2001:660:4406:2a0:705:1:0:8",
+      "kavlan-13": "2001:660:4406:4a0:705:1:0:8",
+      "kavlan-14": "2001:660:4406:5a0:705:1:0:8",
+      "kavlan-16": "2001:660:4406:7a0:705:1:0:8",
+      "kavlan-18": "2001:660:4406:8a0:705:1:0:8",
+      "kavlan-2": "2001:660:4406:781:5:1:0:8",
+      "kavlan-20": "2001:660:4406:3a0:705:1:0:8",
+      "kavlan-21": "2001:660:4406:6a0:705:1:0:8",
+      "kavlan-3": "2001:660:4406:782:5:1:0:8",
+      "kavlan-4": "2001:660:4406:790:5:1:0:8",
+      "kavlan-5": "2001:660:4406:791:5:1:0:8",
+      "kavlan-6": "2001:660:4406:792:5:1:0:8",
+      "kavlan-7": "2001:660:4406:793:5:1:0:8",
+      "kavlan-8": "2001:660:4406:794:5:1:0:8",
+      "kavlan-9": "2001:660:4406:795:5:1:0:8"
     },
     "eth2": {
-      "kavlan-1": "2001:660:4406:780:5:2::8",
-      "kavlan-11": "2001:660:4406:1a0:705:2::8",
-      "kavlan-12": "2001:660:4406:2a0:705:2::8",
-      "kavlan-13": "2001:660:4406:4a0:705:2::8",
-      "kavlan-14": "2001:660:4406:5a0:705:2::8",
-      "kavlan-16": "2001:660:4406:7a0:705:2::8",
-      "kavlan-18": "2001:660:4406:8a0:705:2::8",
-      "kavlan-2": "2001:660:4406:781:5:2::8",
-      "kavlan-20": "2001:660:4406:3a0:705:2::8",
-      "kavlan-21": "2001:660:4406:6a0:705:2::8",
-      "kavlan-3": "2001:660:4406:782:5:2::8",
-      "kavlan-4": "2001:660:4406:790:5:2::8",
-      "kavlan-5": "2001:660:4406:791:5:2::8",
-      "kavlan-6": "2001:660:4406:792:5:2::8",
-      "kavlan-7": "2001:660:4406:793:5:2::8",
-      "kavlan-8": "2001:660:4406:794:5:2::8",
-      "kavlan-9": "2001:660:4406:795:5:2::8"
+      "kavlan-1": "2001:660:4406:780:5:2:0:8",
+      "kavlan-11": "2001:660:4406:1a0:705:2:0:8",
+      "kavlan-12": "2001:660:4406:2a0:705:2:0:8",
+      "kavlan-13": "2001:660:4406:4a0:705:2:0:8",
+      "kavlan-14": "2001:660:4406:5a0:705:2:0:8",
+      "kavlan-16": "2001:660:4406:7a0:705:2:0:8",
+      "kavlan-18": "2001:660:4406:8a0:705:2:0:8",
+      "kavlan-2": "2001:660:4406:781:5:2:0:8",
+      "kavlan-20": "2001:660:4406:3a0:705:2:0:8",
+      "kavlan-21": "2001:660:4406:6a0:705:2:0:8",
+      "kavlan-3": "2001:660:4406:782:5:2:0:8",
+      "kavlan-4": "2001:660:4406:790:5:2:0:8",
+      "kavlan-5": "2001:660:4406:791:5:2:0:8",
+      "kavlan-6": "2001:660:4406:792:5:2:0:8",
+      "kavlan-7": "2001:660:4406:793:5:2:0:8",
+      "kavlan-8": "2001:660:4406:794:5:2:0:8",
+      "kavlan-9": "2001:660:4406:795:5:2:0:8"
     }
   },
   "main_memory": {
@@ -151,7 +151,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.8",
-      "ip6": "2001:660:4406:700:5:0::8",
+      "ip6": "2001:660:4406:700:5::8",
       "kavlan": true,
       "mac": "a0:36:9f:28:a9:18",
       "management": false,
@@ -173,7 +173,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.108",
-      "ip6": "2001:660:4406:700:5:1::8",
+      "ip6": "2001:660:4406:700:5:1:0:8",
       "kavlan": true,
       "mac": "a0:36:9f:28:a9:1a",
       "management": false,
@@ -195,7 +195,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.100.208",
-      "ip6": "2001:660:4406:700:5:2::8",
+      "ip6": "2001:660:4406:700:5:2:0:8",
       "kavlan": true,
       "mac": "f0:4d:a2:73:ce:3d",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-1.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-1.json
index 34a0e7d0110693c75e8f94521753c0adb182334a..003d4665105727075435fa6e1221b4af8dfebfc0 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-1.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3:0::1",
-      "kavlan-11": "2001:660:4406:1a0:703:0::1",
-      "kavlan-12": "2001:660:4406:2a0:703:0::1",
-      "kavlan-13": "2001:660:4406:4a0:703:0::1",
-      "kavlan-14": "2001:660:4406:5a0:703:0::1",
-      "kavlan-16": "2001:660:4406:7a0:703:0::1",
-      "kavlan-18": "2001:660:4406:8a0:703:0::1",
-      "kavlan-2": "2001:660:4406:781:3:0::1",
-      "kavlan-20": "2001:660:4406:3a0:703:0::1",
-      "kavlan-21": "2001:660:4406:6a0:703:0::1",
-      "kavlan-3": "2001:660:4406:782:3:0::1",
-      "kavlan-4": "2001:660:4406:790:3:0::1",
-      "kavlan-5": "2001:660:4406:791:3:0::1",
-      "kavlan-6": "2001:660:4406:792:3:0::1",
-      "kavlan-7": "2001:660:4406:793:3:0::1",
-      "kavlan-8": "2001:660:4406:794:3:0::1",
-      "kavlan-9": "2001:660:4406:795:3:0::1"
+      "kavlan-1": "2001:660:4406:780:3::1",
+      "kavlan-11": "2001:660:4406:1a0:703::1",
+      "kavlan-12": "2001:660:4406:2a0:703::1",
+      "kavlan-13": "2001:660:4406:4a0:703::1",
+      "kavlan-14": "2001:660:4406:5a0:703::1",
+      "kavlan-16": "2001:660:4406:7a0:703::1",
+      "kavlan-18": "2001:660:4406:8a0:703::1",
+      "kavlan-2": "2001:660:4406:781:3::1",
+      "kavlan-20": "2001:660:4406:3a0:703::1",
+      "kavlan-21": "2001:660:4406:6a0:703::1",
+      "kavlan-3": "2001:660:4406:782:3::1",
+      "kavlan-4": "2001:660:4406:790:3::1",
+      "kavlan-5": "2001:660:4406:791:3::1",
+      "kavlan-6": "2001:660:4406:792:3::1",
+      "kavlan-7": "2001:660:4406:793:3::1",
+      "kavlan-8": "2001:660:4406:794:3::1",
+      "kavlan-9": "2001:660:4406:795:3::1"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.1",
-      "ip6": "2001:660:4406:700:3:0::1",
+      "ip6": "2001:660:4406:700:3::1",
       "kavlan": true,
       "mac": "00:14:4f:ca:97:0c",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-10.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-10.json
index 59c0f3784da323ff86442a216c96b6be79928b23..5c7491254fa5e75ca4ba2fa9e63fbf713ad115e5 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-10.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3:0::a",
-      "kavlan-11": "2001:660:4406:1a0:703:0::a",
-      "kavlan-12": "2001:660:4406:2a0:703:0::a",
-      "kavlan-13": "2001:660:4406:4a0:703:0::a",
-      "kavlan-14": "2001:660:4406:5a0:703:0::a",
-      "kavlan-16": "2001:660:4406:7a0:703:0::a",
-      "kavlan-18": "2001:660:4406:8a0:703:0::a",
-      "kavlan-2": "2001:660:4406:781:3:0::a",
-      "kavlan-20": "2001:660:4406:3a0:703:0::a",
-      "kavlan-21": "2001:660:4406:6a0:703:0::a",
-      "kavlan-3": "2001:660:4406:782:3:0::a",
-      "kavlan-4": "2001:660:4406:790:3:0::a",
-      "kavlan-5": "2001:660:4406:791:3:0::a",
-      "kavlan-6": "2001:660:4406:792:3:0::a",
-      "kavlan-7": "2001:660:4406:793:3:0::a",
-      "kavlan-8": "2001:660:4406:794:3:0::a",
-      "kavlan-9": "2001:660:4406:795:3:0::a"
+      "kavlan-1": "2001:660:4406:780:3::a",
+      "kavlan-11": "2001:660:4406:1a0:703::a",
+      "kavlan-12": "2001:660:4406:2a0:703::a",
+      "kavlan-13": "2001:660:4406:4a0:703::a",
+      "kavlan-14": "2001:660:4406:5a0:703::a",
+      "kavlan-16": "2001:660:4406:7a0:703::a",
+      "kavlan-18": "2001:660:4406:8a0:703::a",
+      "kavlan-2": "2001:660:4406:781:3::a",
+      "kavlan-20": "2001:660:4406:3a0:703::a",
+      "kavlan-21": "2001:660:4406:6a0:703::a",
+      "kavlan-3": "2001:660:4406:782:3::a",
+      "kavlan-4": "2001:660:4406:790:3::a",
+      "kavlan-5": "2001:660:4406:791:3::a",
+      "kavlan-6": "2001:660:4406:792:3::a",
+      "kavlan-7": "2001:660:4406:793:3::a",
+      "kavlan-8": "2001:660:4406:794:3::a",
+      "kavlan-9": "2001:660:4406:795:3::a"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.10",
-      "ip6": "2001:660:4406:700:3:0::a",
+      "ip6": "2001:660:4406:700:3::a",
       "kavlan": true,
       "mac": "00:14:4f:ca:98:4c",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-12.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-12.json
index a09d37becb5f6b7907e91858a9463c84f38116d3..1283304d999ee45886cce71301f08717b84dfe2c 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-12.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3:0::c",
-      "kavlan-11": "2001:660:4406:1a0:703:0::c",
-      "kavlan-12": "2001:660:4406:2a0:703:0::c",
-      "kavlan-13": "2001:660:4406:4a0:703:0::c",
-      "kavlan-14": "2001:660:4406:5a0:703:0::c",
-      "kavlan-16": "2001:660:4406:7a0:703:0::c",
-      "kavlan-18": "2001:660:4406:8a0:703:0::c",
-      "kavlan-2": "2001:660:4406:781:3:0::c",
-      "kavlan-20": "2001:660:4406:3a0:703:0::c",
-      "kavlan-21": "2001:660:4406:6a0:703:0::c",
-      "kavlan-3": "2001:660:4406:782:3:0::c",
-      "kavlan-4": "2001:660:4406:790:3:0::c",
-      "kavlan-5": "2001:660:4406:791:3:0::c",
-      "kavlan-6": "2001:660:4406:792:3:0::c",
-      "kavlan-7": "2001:660:4406:793:3:0::c",
-      "kavlan-8": "2001:660:4406:794:3:0::c",
-      "kavlan-9": "2001:660:4406:795:3:0::c"
+      "kavlan-1": "2001:660:4406:780:3::c",
+      "kavlan-11": "2001:660:4406:1a0:703::c",
+      "kavlan-12": "2001:660:4406:2a0:703::c",
+      "kavlan-13": "2001:660:4406:4a0:703::c",
+      "kavlan-14": "2001:660:4406:5a0:703::c",
+      "kavlan-16": "2001:660:4406:7a0:703::c",
+      "kavlan-18": "2001:660:4406:8a0:703::c",
+      "kavlan-2": "2001:660:4406:781:3::c",
+      "kavlan-20": "2001:660:4406:3a0:703::c",
+      "kavlan-21": "2001:660:4406:6a0:703::c",
+      "kavlan-3": "2001:660:4406:782:3::c",
+      "kavlan-4": "2001:660:4406:790:3::c",
+      "kavlan-5": "2001:660:4406:791:3::c",
+      "kavlan-6": "2001:660:4406:792:3::c",
+      "kavlan-7": "2001:660:4406:793:3::c",
+      "kavlan-8": "2001:660:4406:794:3::c",
+      "kavlan-9": "2001:660:4406:795:3::c"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.12",
-      "ip6": "2001:660:4406:700:3:0::c",
+      "ip6": "2001:660:4406:700:3::c",
       "kavlan": true,
       "mac": "00:14:4f:ca:99:24",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-13.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-13.json
index 69027238dbb21a4b0ba809eddb048ec4f00b774a..d61e42b987eaaa00ce6bcf361c86a09f5a3c911b 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-13.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3:0::d",
-      "kavlan-11": "2001:660:4406:1a0:703:0::d",
-      "kavlan-12": "2001:660:4406:2a0:703:0::d",
-      "kavlan-13": "2001:660:4406:4a0:703:0::d",
-      "kavlan-14": "2001:660:4406:5a0:703:0::d",
-      "kavlan-16": "2001:660:4406:7a0:703:0::d",
-      "kavlan-18": "2001:660:4406:8a0:703:0::d",
-      "kavlan-2": "2001:660:4406:781:3:0::d",
-      "kavlan-20": "2001:660:4406:3a0:703:0::d",
-      "kavlan-21": "2001:660:4406:6a0:703:0::d",
-      "kavlan-3": "2001:660:4406:782:3:0::d",
-      "kavlan-4": "2001:660:4406:790:3:0::d",
-      "kavlan-5": "2001:660:4406:791:3:0::d",
-      "kavlan-6": "2001:660:4406:792:3:0::d",
-      "kavlan-7": "2001:660:4406:793:3:0::d",
-      "kavlan-8": "2001:660:4406:794:3:0::d",
-      "kavlan-9": "2001:660:4406:795:3:0::d"
+      "kavlan-1": "2001:660:4406:780:3::d",
+      "kavlan-11": "2001:660:4406:1a0:703::d",
+      "kavlan-12": "2001:660:4406:2a0:703::d",
+      "kavlan-13": "2001:660:4406:4a0:703::d",
+      "kavlan-14": "2001:660:4406:5a0:703::d",
+      "kavlan-16": "2001:660:4406:7a0:703::d",
+      "kavlan-18": "2001:660:4406:8a0:703::d",
+      "kavlan-2": "2001:660:4406:781:3::d",
+      "kavlan-20": "2001:660:4406:3a0:703::d",
+      "kavlan-21": "2001:660:4406:6a0:703::d",
+      "kavlan-3": "2001:660:4406:782:3::d",
+      "kavlan-4": "2001:660:4406:790:3::d",
+      "kavlan-5": "2001:660:4406:791:3::d",
+      "kavlan-6": "2001:660:4406:792:3::d",
+      "kavlan-7": "2001:660:4406:793:3::d",
+      "kavlan-8": "2001:660:4406:794:3::d",
+      "kavlan-9": "2001:660:4406:795:3::d"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.13",
-      "ip6": "2001:660:4406:700:3:0::d",
+      "ip6": "2001:660:4406:700:3::d",
       "kavlan": true,
       "mac": "00:14:4f:ca:9a:80",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-16.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-16.json
index 399e93e8371fa6995ece3240d7f0d647484f6f5b..4cbc940e51c37a400d9c7ab06f221f0819a068c6 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-16.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3:0::10",
-      "kavlan-11": "2001:660:4406:1a0:703:0::10",
-      "kavlan-12": "2001:660:4406:2a0:703:0::10",
-      "kavlan-13": "2001:660:4406:4a0:703:0::10",
-      "kavlan-14": "2001:660:4406:5a0:703:0::10",
-      "kavlan-16": "2001:660:4406:7a0:703:0::10",
-      "kavlan-18": "2001:660:4406:8a0:703:0::10",
-      "kavlan-2": "2001:660:4406:781:3:0::10",
-      "kavlan-20": "2001:660:4406:3a0:703:0::10",
-      "kavlan-21": "2001:660:4406:6a0:703:0::10",
-      "kavlan-3": "2001:660:4406:782:3:0::10",
-      "kavlan-4": "2001:660:4406:790:3:0::10",
-      "kavlan-5": "2001:660:4406:791:3:0::10",
-      "kavlan-6": "2001:660:4406:792:3:0::10",
-      "kavlan-7": "2001:660:4406:793:3:0::10",
-      "kavlan-8": "2001:660:4406:794:3:0::10",
-      "kavlan-9": "2001:660:4406:795:3:0::10"
+      "kavlan-1": "2001:660:4406:780:3::10",
+      "kavlan-11": "2001:660:4406:1a0:703::10",
+      "kavlan-12": "2001:660:4406:2a0:703::10",
+      "kavlan-13": "2001:660:4406:4a0:703::10",
+      "kavlan-14": "2001:660:4406:5a0:703::10",
+      "kavlan-16": "2001:660:4406:7a0:703::10",
+      "kavlan-18": "2001:660:4406:8a0:703::10",
+      "kavlan-2": "2001:660:4406:781:3::10",
+      "kavlan-20": "2001:660:4406:3a0:703::10",
+      "kavlan-21": "2001:660:4406:6a0:703::10",
+      "kavlan-3": "2001:660:4406:782:3::10",
+      "kavlan-4": "2001:660:4406:790:3::10",
+      "kavlan-5": "2001:660:4406:791:3::10",
+      "kavlan-6": "2001:660:4406:792:3::10",
+      "kavlan-7": "2001:660:4406:793:3::10",
+      "kavlan-8": "2001:660:4406:794:3::10",
+      "kavlan-9": "2001:660:4406:795:3::10"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.16",
-      "ip6": "2001:660:4406:700:3:0::10",
+      "ip6": "2001:660:4406:700:3::10",
       "kavlan": true,
       "mac": "00:14:4f:ca:94:b4",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-18.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-18.json
index d9291bd7126e8186e79018cca663dc304c65f62c..390334d8df39dab0ffb901b43432715caed49063 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-18.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-18.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3:0::12",
-      "kavlan-11": "2001:660:4406:1a0:703:0::12",
-      "kavlan-12": "2001:660:4406:2a0:703:0::12",
-      "kavlan-13": "2001:660:4406:4a0:703:0::12",
-      "kavlan-14": "2001:660:4406:5a0:703:0::12",
-      "kavlan-16": "2001:660:4406:7a0:703:0::12",
-      "kavlan-18": "2001:660:4406:8a0:703:0::12",
-      "kavlan-2": "2001:660:4406:781:3:0::12",
-      "kavlan-20": "2001:660:4406:3a0:703:0::12",
-      "kavlan-21": "2001:660:4406:6a0:703:0::12",
-      "kavlan-3": "2001:660:4406:782:3:0::12",
-      "kavlan-4": "2001:660:4406:790:3:0::12",
-      "kavlan-5": "2001:660:4406:791:3:0::12",
-      "kavlan-6": "2001:660:4406:792:3:0::12",
-      "kavlan-7": "2001:660:4406:793:3:0::12",
-      "kavlan-8": "2001:660:4406:794:3:0::12",
-      "kavlan-9": "2001:660:4406:795:3:0::12"
+      "kavlan-1": "2001:660:4406:780:3::12",
+      "kavlan-11": "2001:660:4406:1a0:703::12",
+      "kavlan-12": "2001:660:4406:2a0:703::12",
+      "kavlan-13": "2001:660:4406:4a0:703::12",
+      "kavlan-14": "2001:660:4406:5a0:703::12",
+      "kavlan-16": "2001:660:4406:7a0:703::12",
+      "kavlan-18": "2001:660:4406:8a0:703::12",
+      "kavlan-2": "2001:660:4406:781:3::12",
+      "kavlan-20": "2001:660:4406:3a0:703::12",
+      "kavlan-21": "2001:660:4406:6a0:703::12",
+      "kavlan-3": "2001:660:4406:782:3::12",
+      "kavlan-4": "2001:660:4406:790:3::12",
+      "kavlan-5": "2001:660:4406:791:3::12",
+      "kavlan-6": "2001:660:4406:792:3::12",
+      "kavlan-7": "2001:660:4406:793:3::12",
+      "kavlan-8": "2001:660:4406:794:3::12",
+      "kavlan-9": "2001:660:4406:795:3::12"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.18",
-      "ip6": "2001:660:4406:700:3:0::12",
+      "ip6": "2001:660:4406:700:3::12",
       "kavlan": true,
       "mac": "00:14:4f:ca:99:a8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-19.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-19.json
index 80b9e11bc03e94ef45f04edd7144ca1d946d03bf..9da28f4ec5c03b8754cb8d79d22364dda8b0c5c8 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-19.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-19.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3:0::13",
-      "kavlan-11": "2001:660:4406:1a0:703:0::13",
-      "kavlan-12": "2001:660:4406:2a0:703:0::13",
-      "kavlan-13": "2001:660:4406:4a0:703:0::13",
-      "kavlan-14": "2001:660:4406:5a0:703:0::13",
-      "kavlan-16": "2001:660:4406:7a0:703:0::13",
-      "kavlan-18": "2001:660:4406:8a0:703:0::13",
-      "kavlan-2": "2001:660:4406:781:3:0::13",
-      "kavlan-20": "2001:660:4406:3a0:703:0::13",
-      "kavlan-21": "2001:660:4406:6a0:703:0::13",
-      "kavlan-3": "2001:660:4406:782:3:0::13",
-      "kavlan-4": "2001:660:4406:790:3:0::13",
-      "kavlan-5": "2001:660:4406:791:3:0::13",
-      "kavlan-6": "2001:660:4406:792:3:0::13",
-      "kavlan-7": "2001:660:4406:793:3:0::13",
-      "kavlan-8": "2001:660:4406:794:3:0::13",
-      "kavlan-9": "2001:660:4406:795:3:0::13"
+      "kavlan-1": "2001:660:4406:780:3::13",
+      "kavlan-11": "2001:660:4406:1a0:703::13",
+      "kavlan-12": "2001:660:4406:2a0:703::13",
+      "kavlan-13": "2001:660:4406:4a0:703::13",
+      "kavlan-14": "2001:660:4406:5a0:703::13",
+      "kavlan-16": "2001:660:4406:7a0:703::13",
+      "kavlan-18": "2001:660:4406:8a0:703::13",
+      "kavlan-2": "2001:660:4406:781:3::13",
+      "kavlan-20": "2001:660:4406:3a0:703::13",
+      "kavlan-21": "2001:660:4406:6a0:703::13",
+      "kavlan-3": "2001:660:4406:782:3::13",
+      "kavlan-4": "2001:660:4406:790:3::13",
+      "kavlan-5": "2001:660:4406:791:3::13",
+      "kavlan-6": "2001:660:4406:792:3::13",
+      "kavlan-7": "2001:660:4406:793:3::13",
+      "kavlan-8": "2001:660:4406:794:3::13",
+      "kavlan-9": "2001:660:4406:795:3::13"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.19",
-      "ip6": "2001:660:4406:700:3:0::13",
+      "ip6": "2001:660:4406:700:3::13",
       "kavlan": true,
       "mac": "00:21:28:40:3c:3a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-2.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-2.json
index f0c5c88d4af0a76349a049577dfb506865a1d9e6..9d28d001e93bce8c20fd1da19b99eb4c2033d9a6 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-2.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3:0::2",
-      "kavlan-11": "2001:660:4406:1a0:703:0::2",
-      "kavlan-12": "2001:660:4406:2a0:703:0::2",
-      "kavlan-13": "2001:660:4406:4a0:703:0::2",
-      "kavlan-14": "2001:660:4406:5a0:703:0::2",
-      "kavlan-16": "2001:660:4406:7a0:703:0::2",
-      "kavlan-18": "2001:660:4406:8a0:703:0::2",
-      "kavlan-2": "2001:660:4406:781:3:0::2",
-      "kavlan-20": "2001:660:4406:3a0:703:0::2",
-      "kavlan-21": "2001:660:4406:6a0:703:0::2",
-      "kavlan-3": "2001:660:4406:782:3:0::2",
-      "kavlan-4": "2001:660:4406:790:3:0::2",
-      "kavlan-5": "2001:660:4406:791:3:0::2",
-      "kavlan-6": "2001:660:4406:792:3:0::2",
-      "kavlan-7": "2001:660:4406:793:3:0::2",
-      "kavlan-8": "2001:660:4406:794:3:0::2",
-      "kavlan-9": "2001:660:4406:795:3:0::2"
+      "kavlan-1": "2001:660:4406:780:3::2",
+      "kavlan-11": "2001:660:4406:1a0:703::2",
+      "kavlan-12": "2001:660:4406:2a0:703::2",
+      "kavlan-13": "2001:660:4406:4a0:703::2",
+      "kavlan-14": "2001:660:4406:5a0:703::2",
+      "kavlan-16": "2001:660:4406:7a0:703::2",
+      "kavlan-18": "2001:660:4406:8a0:703::2",
+      "kavlan-2": "2001:660:4406:781:3::2",
+      "kavlan-20": "2001:660:4406:3a0:703::2",
+      "kavlan-21": "2001:660:4406:6a0:703::2",
+      "kavlan-3": "2001:660:4406:782:3::2",
+      "kavlan-4": "2001:660:4406:790:3::2",
+      "kavlan-5": "2001:660:4406:791:3::2",
+      "kavlan-6": "2001:660:4406:792:3::2",
+      "kavlan-7": "2001:660:4406:793:3::2",
+      "kavlan-8": "2001:660:4406:794:3::2",
+      "kavlan-9": "2001:660:4406:795:3::2"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.2",
-      "ip6": "2001:660:4406:700:3:0::2",
+      "ip6": "2001:660:4406:700:3::2",
       "kavlan": true,
       "mac": "00:14:4f:ca:99:7c",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-21.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-21.json
index 353da141c2c615bcacef095c90f94e63b57a7082..05694b94ab65dc398c83180a104d5fbb3d649162 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-21.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-21.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3:0::15",
-      "kavlan-11": "2001:660:4406:1a0:703:0::15",
-      "kavlan-12": "2001:660:4406:2a0:703:0::15",
-      "kavlan-13": "2001:660:4406:4a0:703:0::15",
-      "kavlan-14": "2001:660:4406:5a0:703:0::15",
-      "kavlan-16": "2001:660:4406:7a0:703:0::15",
-      "kavlan-18": "2001:660:4406:8a0:703:0::15",
-      "kavlan-2": "2001:660:4406:781:3:0::15",
-      "kavlan-20": "2001:660:4406:3a0:703:0::15",
-      "kavlan-21": "2001:660:4406:6a0:703:0::15",
-      "kavlan-3": "2001:660:4406:782:3:0::15",
-      "kavlan-4": "2001:660:4406:790:3:0::15",
-      "kavlan-5": "2001:660:4406:791:3:0::15",
-      "kavlan-6": "2001:660:4406:792:3:0::15",
-      "kavlan-7": "2001:660:4406:793:3:0::15",
-      "kavlan-8": "2001:660:4406:794:3:0::15",
-      "kavlan-9": "2001:660:4406:795:3:0::15"
+      "kavlan-1": "2001:660:4406:780:3::15",
+      "kavlan-11": "2001:660:4406:1a0:703::15",
+      "kavlan-12": "2001:660:4406:2a0:703::15",
+      "kavlan-13": "2001:660:4406:4a0:703::15",
+      "kavlan-14": "2001:660:4406:5a0:703::15",
+      "kavlan-16": "2001:660:4406:7a0:703::15",
+      "kavlan-18": "2001:660:4406:8a0:703::15",
+      "kavlan-2": "2001:660:4406:781:3::15",
+      "kavlan-20": "2001:660:4406:3a0:703::15",
+      "kavlan-21": "2001:660:4406:6a0:703::15",
+      "kavlan-3": "2001:660:4406:782:3::15",
+      "kavlan-4": "2001:660:4406:790:3::15",
+      "kavlan-5": "2001:660:4406:791:3::15",
+      "kavlan-6": "2001:660:4406:792:3::15",
+      "kavlan-7": "2001:660:4406:793:3::15",
+      "kavlan-8": "2001:660:4406:794:3::15",
+      "kavlan-9": "2001:660:4406:795:3::15"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.21",
-      "ip6": "2001:660:4406:700:3:0::15",
+      "ip6": "2001:660:4406:700:3::15",
       "kavlan": true,
       "mac": "00:14:4f:ca:4d:78",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-24.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-24.json
index 84d48b4afeb5f050ceeafb44b9030ac5ce1f5d9d..c30a1581b61fef39314d8aa3b0f203fe5e915b9c 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-24.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-24.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3:0::18",
-      "kavlan-11": "2001:660:4406:1a0:703:0::18",
-      "kavlan-12": "2001:660:4406:2a0:703:0::18",
-      "kavlan-13": "2001:660:4406:4a0:703:0::18",
-      "kavlan-14": "2001:660:4406:5a0:703:0::18",
-      "kavlan-16": "2001:660:4406:7a0:703:0::18",
-      "kavlan-18": "2001:660:4406:8a0:703:0::18",
-      "kavlan-2": "2001:660:4406:781:3:0::18",
-      "kavlan-20": "2001:660:4406:3a0:703:0::18",
-      "kavlan-21": "2001:660:4406:6a0:703:0::18",
-      "kavlan-3": "2001:660:4406:782:3:0::18",
-      "kavlan-4": "2001:660:4406:790:3:0::18",
-      "kavlan-5": "2001:660:4406:791:3:0::18",
-      "kavlan-6": "2001:660:4406:792:3:0::18",
-      "kavlan-7": "2001:660:4406:793:3:0::18",
-      "kavlan-8": "2001:660:4406:794:3:0::18",
-      "kavlan-9": "2001:660:4406:795:3:0::18"
+      "kavlan-1": "2001:660:4406:780:3::18",
+      "kavlan-11": "2001:660:4406:1a0:703::18",
+      "kavlan-12": "2001:660:4406:2a0:703::18",
+      "kavlan-13": "2001:660:4406:4a0:703::18",
+      "kavlan-14": "2001:660:4406:5a0:703::18",
+      "kavlan-16": "2001:660:4406:7a0:703::18",
+      "kavlan-18": "2001:660:4406:8a0:703::18",
+      "kavlan-2": "2001:660:4406:781:3::18",
+      "kavlan-20": "2001:660:4406:3a0:703::18",
+      "kavlan-21": "2001:660:4406:6a0:703::18",
+      "kavlan-3": "2001:660:4406:782:3::18",
+      "kavlan-4": "2001:660:4406:790:3::18",
+      "kavlan-5": "2001:660:4406:791:3::18",
+      "kavlan-6": "2001:660:4406:792:3::18",
+      "kavlan-7": "2001:660:4406:793:3::18",
+      "kavlan-8": "2001:660:4406:794:3::18",
+      "kavlan-9": "2001:660:4406:795:3::18"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.24",
-      "ip6": "2001:660:4406:700:3:0::18",
+      "ip6": "2001:660:4406:700:3::18",
       "kavlan": true,
       "mac": "00:14:4f:ca:92:38",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-25.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-25.json
index b4a8081a2a663239dfa533fe368bcc060e29b68e..9e4193122df1f365f726ece0af9750a786084942 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-25.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-25.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3:0::19",
-      "kavlan-11": "2001:660:4406:1a0:703:0::19",
-      "kavlan-12": "2001:660:4406:2a0:703:0::19",
-      "kavlan-13": "2001:660:4406:4a0:703:0::19",
-      "kavlan-14": "2001:660:4406:5a0:703:0::19",
-      "kavlan-16": "2001:660:4406:7a0:703:0::19",
-      "kavlan-18": "2001:660:4406:8a0:703:0::19",
-      "kavlan-2": "2001:660:4406:781:3:0::19",
-      "kavlan-20": "2001:660:4406:3a0:703:0::19",
-      "kavlan-21": "2001:660:4406:6a0:703:0::19",
-      "kavlan-3": "2001:660:4406:782:3:0::19",
-      "kavlan-4": "2001:660:4406:790:3:0::19",
-      "kavlan-5": "2001:660:4406:791:3:0::19",
-      "kavlan-6": "2001:660:4406:792:3:0::19",
-      "kavlan-7": "2001:660:4406:793:3:0::19",
-      "kavlan-8": "2001:660:4406:794:3:0::19",
-      "kavlan-9": "2001:660:4406:795:3:0::19"
+      "kavlan-1": "2001:660:4406:780:3::19",
+      "kavlan-11": "2001:660:4406:1a0:703::19",
+      "kavlan-12": "2001:660:4406:2a0:703::19",
+      "kavlan-13": "2001:660:4406:4a0:703::19",
+      "kavlan-14": "2001:660:4406:5a0:703::19",
+      "kavlan-16": "2001:660:4406:7a0:703::19",
+      "kavlan-18": "2001:660:4406:8a0:703::19",
+      "kavlan-2": "2001:660:4406:781:3::19",
+      "kavlan-20": "2001:660:4406:3a0:703::19",
+      "kavlan-21": "2001:660:4406:6a0:703::19",
+      "kavlan-3": "2001:660:4406:782:3::19",
+      "kavlan-4": "2001:660:4406:790:3::19",
+      "kavlan-5": "2001:660:4406:791:3::19",
+      "kavlan-6": "2001:660:4406:792:3::19",
+      "kavlan-7": "2001:660:4406:793:3::19",
+      "kavlan-8": "2001:660:4406:794:3::19",
+      "kavlan-9": "2001:660:4406:795:3::19"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.25",
-      "ip6": "2001:660:4406:700:3:0::19",
+      "ip6": "2001:660:4406:700:3::19",
       "kavlan": true,
       "mac": "00:14:4f:ca:91:60",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-3.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-3.json
index 854d312e90bae28b59e78262ac09037427ddb1fd..ebb503de84572fec05e8a137aeb180c016d08eab 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-3.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3:0::3",
-      "kavlan-11": "2001:660:4406:1a0:703:0::3",
-      "kavlan-12": "2001:660:4406:2a0:703:0::3",
-      "kavlan-13": "2001:660:4406:4a0:703:0::3",
-      "kavlan-14": "2001:660:4406:5a0:703:0::3",
-      "kavlan-16": "2001:660:4406:7a0:703:0::3",
-      "kavlan-18": "2001:660:4406:8a0:703:0::3",
-      "kavlan-2": "2001:660:4406:781:3:0::3",
-      "kavlan-20": "2001:660:4406:3a0:703:0::3",
-      "kavlan-21": "2001:660:4406:6a0:703:0::3",
-      "kavlan-3": "2001:660:4406:782:3:0::3",
-      "kavlan-4": "2001:660:4406:790:3:0::3",
-      "kavlan-5": "2001:660:4406:791:3:0::3",
-      "kavlan-6": "2001:660:4406:792:3:0::3",
-      "kavlan-7": "2001:660:4406:793:3:0::3",
-      "kavlan-8": "2001:660:4406:794:3:0::3",
-      "kavlan-9": "2001:660:4406:795:3:0::3"
+      "kavlan-1": "2001:660:4406:780:3::3",
+      "kavlan-11": "2001:660:4406:1a0:703::3",
+      "kavlan-12": "2001:660:4406:2a0:703::3",
+      "kavlan-13": "2001:660:4406:4a0:703::3",
+      "kavlan-14": "2001:660:4406:5a0:703::3",
+      "kavlan-16": "2001:660:4406:7a0:703::3",
+      "kavlan-18": "2001:660:4406:8a0:703::3",
+      "kavlan-2": "2001:660:4406:781:3::3",
+      "kavlan-20": "2001:660:4406:3a0:703::3",
+      "kavlan-21": "2001:660:4406:6a0:703::3",
+      "kavlan-3": "2001:660:4406:782:3::3",
+      "kavlan-4": "2001:660:4406:790:3::3",
+      "kavlan-5": "2001:660:4406:791:3::3",
+      "kavlan-6": "2001:660:4406:792:3::3",
+      "kavlan-7": "2001:660:4406:793:3::3",
+      "kavlan-8": "2001:660:4406:794:3::3",
+      "kavlan-9": "2001:660:4406:795:3::3"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.3",
-      "ip6": "2001:660:4406:700:3:0::3",
+      "ip6": "2001:660:4406:700:3::3",
       "kavlan": true,
       "mac": "00:14:4f:ca:92:6c",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-5.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-5.json
index c09ff7833da1a413cce35998d12bd9ec07c9c6c5..2334cc194041f17267a6cfd6044bbb2084f1db4a 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-5.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3:0::5",
-      "kavlan-11": "2001:660:4406:1a0:703:0::5",
-      "kavlan-12": "2001:660:4406:2a0:703:0::5",
-      "kavlan-13": "2001:660:4406:4a0:703:0::5",
-      "kavlan-14": "2001:660:4406:5a0:703:0::5",
-      "kavlan-16": "2001:660:4406:7a0:703:0::5",
-      "kavlan-18": "2001:660:4406:8a0:703:0::5",
-      "kavlan-2": "2001:660:4406:781:3:0::5",
-      "kavlan-20": "2001:660:4406:3a0:703:0::5",
-      "kavlan-21": "2001:660:4406:6a0:703:0::5",
-      "kavlan-3": "2001:660:4406:782:3:0::5",
-      "kavlan-4": "2001:660:4406:790:3:0::5",
-      "kavlan-5": "2001:660:4406:791:3:0::5",
-      "kavlan-6": "2001:660:4406:792:3:0::5",
-      "kavlan-7": "2001:660:4406:793:3:0::5",
-      "kavlan-8": "2001:660:4406:794:3:0::5",
-      "kavlan-9": "2001:660:4406:795:3:0::5"
+      "kavlan-1": "2001:660:4406:780:3::5",
+      "kavlan-11": "2001:660:4406:1a0:703::5",
+      "kavlan-12": "2001:660:4406:2a0:703::5",
+      "kavlan-13": "2001:660:4406:4a0:703::5",
+      "kavlan-14": "2001:660:4406:5a0:703::5",
+      "kavlan-16": "2001:660:4406:7a0:703::5",
+      "kavlan-18": "2001:660:4406:8a0:703::5",
+      "kavlan-2": "2001:660:4406:781:3::5",
+      "kavlan-20": "2001:660:4406:3a0:703::5",
+      "kavlan-21": "2001:660:4406:6a0:703::5",
+      "kavlan-3": "2001:660:4406:782:3::5",
+      "kavlan-4": "2001:660:4406:790:3::5",
+      "kavlan-5": "2001:660:4406:791:3::5",
+      "kavlan-6": "2001:660:4406:792:3::5",
+      "kavlan-7": "2001:660:4406:793:3::5",
+      "kavlan-8": "2001:660:4406:794:3::5",
+      "kavlan-9": "2001:660:4406:795:3::5"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.5",
-      "ip6": "2001:660:4406:700:3:0::5",
+      "ip6": "2001:660:4406:700:3::5",
       "kavlan": true,
       "mac": "00:14:4f:ca:94:70",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-6.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-6.json
index 150e601b1e15deb396a345cc0135a01e6c2855a8..400138e734e5afb7eaa7be8c0239a9288173bd96 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-6.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3:0::6",
-      "kavlan-11": "2001:660:4406:1a0:703:0::6",
-      "kavlan-12": "2001:660:4406:2a0:703:0::6",
-      "kavlan-13": "2001:660:4406:4a0:703:0::6",
-      "kavlan-14": "2001:660:4406:5a0:703:0::6",
-      "kavlan-16": "2001:660:4406:7a0:703:0::6",
-      "kavlan-18": "2001:660:4406:8a0:703:0::6",
-      "kavlan-2": "2001:660:4406:781:3:0::6",
-      "kavlan-20": "2001:660:4406:3a0:703:0::6",
-      "kavlan-21": "2001:660:4406:6a0:703:0::6",
-      "kavlan-3": "2001:660:4406:782:3:0::6",
-      "kavlan-4": "2001:660:4406:790:3:0::6",
-      "kavlan-5": "2001:660:4406:791:3:0::6",
-      "kavlan-6": "2001:660:4406:792:3:0::6",
-      "kavlan-7": "2001:660:4406:793:3:0::6",
-      "kavlan-8": "2001:660:4406:794:3:0::6",
-      "kavlan-9": "2001:660:4406:795:3:0::6"
+      "kavlan-1": "2001:660:4406:780:3::6",
+      "kavlan-11": "2001:660:4406:1a0:703::6",
+      "kavlan-12": "2001:660:4406:2a0:703::6",
+      "kavlan-13": "2001:660:4406:4a0:703::6",
+      "kavlan-14": "2001:660:4406:5a0:703::6",
+      "kavlan-16": "2001:660:4406:7a0:703::6",
+      "kavlan-18": "2001:660:4406:8a0:703::6",
+      "kavlan-2": "2001:660:4406:781:3::6",
+      "kavlan-20": "2001:660:4406:3a0:703::6",
+      "kavlan-21": "2001:660:4406:6a0:703::6",
+      "kavlan-3": "2001:660:4406:782:3::6",
+      "kavlan-4": "2001:660:4406:790:3::6",
+      "kavlan-5": "2001:660:4406:791:3::6",
+      "kavlan-6": "2001:660:4406:792:3::6",
+      "kavlan-7": "2001:660:4406:793:3::6",
+      "kavlan-8": "2001:660:4406:794:3::6",
+      "kavlan-9": "2001:660:4406:795:3::6"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.6",
-      "ip6": "2001:660:4406:700:3:0::6",
+      "ip6": "2001:660:4406:700:3::6",
       "kavlan": true,
       "mac": "00:14:4f:ca:92:30",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-7.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-7.json
index af4a055a6a0b631741178d0e06da4da716d98c45..39cf60eb052ccbd9908d5d71e317549334877ec2 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-7.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3:0::7",
-      "kavlan-11": "2001:660:4406:1a0:703:0::7",
-      "kavlan-12": "2001:660:4406:2a0:703:0::7",
-      "kavlan-13": "2001:660:4406:4a0:703:0::7",
-      "kavlan-14": "2001:660:4406:5a0:703:0::7",
-      "kavlan-16": "2001:660:4406:7a0:703:0::7",
-      "kavlan-18": "2001:660:4406:8a0:703:0::7",
-      "kavlan-2": "2001:660:4406:781:3:0::7",
-      "kavlan-20": "2001:660:4406:3a0:703:0::7",
-      "kavlan-21": "2001:660:4406:6a0:703:0::7",
-      "kavlan-3": "2001:660:4406:782:3:0::7",
-      "kavlan-4": "2001:660:4406:790:3:0::7",
-      "kavlan-5": "2001:660:4406:791:3:0::7",
-      "kavlan-6": "2001:660:4406:792:3:0::7",
-      "kavlan-7": "2001:660:4406:793:3:0::7",
-      "kavlan-8": "2001:660:4406:794:3:0::7",
-      "kavlan-9": "2001:660:4406:795:3:0::7"
+      "kavlan-1": "2001:660:4406:780:3::7",
+      "kavlan-11": "2001:660:4406:1a0:703::7",
+      "kavlan-12": "2001:660:4406:2a0:703::7",
+      "kavlan-13": "2001:660:4406:4a0:703::7",
+      "kavlan-14": "2001:660:4406:5a0:703::7",
+      "kavlan-16": "2001:660:4406:7a0:703::7",
+      "kavlan-18": "2001:660:4406:8a0:703::7",
+      "kavlan-2": "2001:660:4406:781:3::7",
+      "kavlan-20": "2001:660:4406:3a0:703::7",
+      "kavlan-21": "2001:660:4406:6a0:703::7",
+      "kavlan-3": "2001:660:4406:782:3::7",
+      "kavlan-4": "2001:660:4406:790:3::7",
+      "kavlan-5": "2001:660:4406:791:3::7",
+      "kavlan-6": "2001:660:4406:792:3::7",
+      "kavlan-7": "2001:660:4406:793:3::7",
+      "kavlan-8": "2001:660:4406:794:3::7",
+      "kavlan-9": "2001:660:4406:795:3::7"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.7",
-      "ip6": "2001:660:4406:700:3:0::7",
+      "ip6": "2001:660:4406:700:3::7",
       "kavlan": true,
       "mac": "00:14:4f:ca:a7:28",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-8.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-8.json
index 66a9509627cfbf0ba47b95c46833ddae76171cd6..c0df9b38bcde372ba6bc23915f00441521f18be4 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-8.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3:0::8",
-      "kavlan-11": "2001:660:4406:1a0:703:0::8",
-      "kavlan-12": "2001:660:4406:2a0:703:0::8",
-      "kavlan-13": "2001:660:4406:4a0:703:0::8",
-      "kavlan-14": "2001:660:4406:5a0:703:0::8",
-      "kavlan-16": "2001:660:4406:7a0:703:0::8",
-      "kavlan-18": "2001:660:4406:8a0:703:0::8",
-      "kavlan-2": "2001:660:4406:781:3:0::8",
-      "kavlan-20": "2001:660:4406:3a0:703:0::8",
-      "kavlan-21": "2001:660:4406:6a0:703:0::8",
-      "kavlan-3": "2001:660:4406:782:3:0::8",
-      "kavlan-4": "2001:660:4406:790:3:0::8",
-      "kavlan-5": "2001:660:4406:791:3:0::8",
-      "kavlan-6": "2001:660:4406:792:3:0::8",
-      "kavlan-7": "2001:660:4406:793:3:0::8",
-      "kavlan-8": "2001:660:4406:794:3:0::8",
-      "kavlan-9": "2001:660:4406:795:3:0::8"
+      "kavlan-1": "2001:660:4406:780:3::8",
+      "kavlan-11": "2001:660:4406:1a0:703::8",
+      "kavlan-12": "2001:660:4406:2a0:703::8",
+      "kavlan-13": "2001:660:4406:4a0:703::8",
+      "kavlan-14": "2001:660:4406:5a0:703::8",
+      "kavlan-16": "2001:660:4406:7a0:703::8",
+      "kavlan-18": "2001:660:4406:8a0:703::8",
+      "kavlan-2": "2001:660:4406:781:3::8",
+      "kavlan-20": "2001:660:4406:3a0:703::8",
+      "kavlan-21": "2001:660:4406:6a0:703::8",
+      "kavlan-3": "2001:660:4406:782:3::8",
+      "kavlan-4": "2001:660:4406:790:3::8",
+      "kavlan-5": "2001:660:4406:791:3::8",
+      "kavlan-6": "2001:660:4406:792:3::8",
+      "kavlan-7": "2001:660:4406:793:3::8",
+      "kavlan-8": "2001:660:4406:794:3::8",
+      "kavlan-9": "2001:660:4406:795:3::8"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.8",
-      "ip6": "2001:660:4406:700:3:0::8",
+      "ip6": "2001:660:4406:700:3::8",
       "kavlan": true,
       "mac": "00:14:4f:ca:92:b4",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-9.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-9.json
index 09ee7a2a968ec4e727385bc38a4ca50b5315364e..d0f8377cedadcc9c265354b4b8fa8d60d5d52f85 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-9.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3:0::9",
-      "kavlan-11": "2001:660:4406:1a0:703:0::9",
-      "kavlan-12": "2001:660:4406:2a0:703:0::9",
-      "kavlan-13": "2001:660:4406:4a0:703:0::9",
-      "kavlan-14": "2001:660:4406:5a0:703:0::9",
-      "kavlan-16": "2001:660:4406:7a0:703:0::9",
-      "kavlan-18": "2001:660:4406:8a0:703:0::9",
-      "kavlan-2": "2001:660:4406:781:3:0::9",
-      "kavlan-20": "2001:660:4406:3a0:703:0::9",
-      "kavlan-21": "2001:660:4406:6a0:703:0::9",
-      "kavlan-3": "2001:660:4406:782:3:0::9",
-      "kavlan-4": "2001:660:4406:790:3:0::9",
-      "kavlan-5": "2001:660:4406:791:3:0::9",
-      "kavlan-6": "2001:660:4406:792:3:0::9",
-      "kavlan-7": "2001:660:4406:793:3:0::9",
-      "kavlan-8": "2001:660:4406:794:3:0::9",
-      "kavlan-9": "2001:660:4406:795:3:0::9"
+      "kavlan-1": "2001:660:4406:780:3::9",
+      "kavlan-11": "2001:660:4406:1a0:703::9",
+      "kavlan-12": "2001:660:4406:2a0:703::9",
+      "kavlan-13": "2001:660:4406:4a0:703::9",
+      "kavlan-14": "2001:660:4406:5a0:703::9",
+      "kavlan-16": "2001:660:4406:7a0:703::9",
+      "kavlan-18": "2001:660:4406:8a0:703::9",
+      "kavlan-2": "2001:660:4406:781:3::9",
+      "kavlan-20": "2001:660:4406:3a0:703::9",
+      "kavlan-21": "2001:660:4406:6a0:703::9",
+      "kavlan-3": "2001:660:4406:782:3::9",
+      "kavlan-4": "2001:660:4406:790:3::9",
+      "kavlan-5": "2001:660:4406:791:3::9",
+      "kavlan-6": "2001:660:4406:792:3::9",
+      "kavlan-7": "2001:660:4406:793:3::9",
+      "kavlan-8": "2001:660:4406:794:3::9",
+      "kavlan-9": "2001:660:4406:795:3::9"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.9",
-      "ip6": "2001:660:4406:700:3:0::9",
+      "ip6": "2001:660:4406:700:3::9",
       "kavlan": true,
       "mac": "00:14:4f:ca:98:a0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-1.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-1.json
index b98a7ed265c008f0de1c9e6480b9cd14c299d3eb..35755f84c69b302d9bcac06ee6f15d93e9d34aff 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-1.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4:0::1",
-      "kavlan-11": "2001:660:4406:1a0:704:0::1",
-      "kavlan-12": "2001:660:4406:2a0:704:0::1",
-      "kavlan-13": "2001:660:4406:4a0:704:0::1",
-      "kavlan-14": "2001:660:4406:5a0:704:0::1",
-      "kavlan-16": "2001:660:4406:7a0:704:0::1",
-      "kavlan-18": "2001:660:4406:8a0:704:0::1",
-      "kavlan-2": "2001:660:4406:781:4:0::1",
-      "kavlan-20": "2001:660:4406:3a0:704:0::1",
-      "kavlan-21": "2001:660:4406:6a0:704:0::1",
-      "kavlan-3": "2001:660:4406:782:4:0::1",
-      "kavlan-4": "2001:660:4406:790:4:0::1",
-      "kavlan-5": "2001:660:4406:791:4:0::1",
-      "kavlan-6": "2001:660:4406:792:4:0::1",
-      "kavlan-7": "2001:660:4406:793:4:0::1",
-      "kavlan-8": "2001:660:4406:794:4:0::1",
-      "kavlan-9": "2001:660:4406:795:4:0::1"
+      "kavlan-1": "2001:660:4406:780:4::1",
+      "kavlan-11": "2001:660:4406:1a0:704::1",
+      "kavlan-12": "2001:660:4406:2a0:704::1",
+      "kavlan-13": "2001:660:4406:4a0:704::1",
+      "kavlan-14": "2001:660:4406:5a0:704::1",
+      "kavlan-16": "2001:660:4406:7a0:704::1",
+      "kavlan-18": "2001:660:4406:8a0:704::1",
+      "kavlan-2": "2001:660:4406:781:4::1",
+      "kavlan-20": "2001:660:4406:3a0:704::1",
+      "kavlan-21": "2001:660:4406:6a0:704::1",
+      "kavlan-3": "2001:660:4406:782:4::1",
+      "kavlan-4": "2001:660:4406:790:4::1",
+      "kavlan-5": "2001:660:4406:791:4::1",
+      "kavlan-6": "2001:660:4406:792:4::1",
+      "kavlan-7": "2001:660:4406:793:4::1",
+      "kavlan-8": "2001:660:4406:794:4::1",
+      "kavlan-9": "2001:660:4406:795:4::1"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.1",
-      "ip6": "2001:660:4406:700:4:0::1",
+      "ip6": "2001:660:4406:700:4::1",
       "kavlan": true,
       "mac": "78:e7:d1:f5:ef:23",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-11.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-11.json
index f24ad50f19261a89d70cc54ec784e1bc7264fd87..e2e9ec98232b61709e3d31416e399f6c365e85b3 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-11.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4:0::b",
-      "kavlan-11": "2001:660:4406:1a0:704:0::b",
-      "kavlan-12": "2001:660:4406:2a0:704:0::b",
-      "kavlan-13": "2001:660:4406:4a0:704:0::b",
-      "kavlan-14": "2001:660:4406:5a0:704:0::b",
-      "kavlan-16": "2001:660:4406:7a0:704:0::b",
-      "kavlan-18": "2001:660:4406:8a0:704:0::b",
-      "kavlan-2": "2001:660:4406:781:4:0::b",
-      "kavlan-20": "2001:660:4406:3a0:704:0::b",
-      "kavlan-21": "2001:660:4406:6a0:704:0::b",
-      "kavlan-3": "2001:660:4406:782:4:0::b",
-      "kavlan-4": "2001:660:4406:790:4:0::b",
-      "kavlan-5": "2001:660:4406:791:4:0::b",
-      "kavlan-6": "2001:660:4406:792:4:0::b",
-      "kavlan-7": "2001:660:4406:793:4:0::b",
-      "kavlan-8": "2001:660:4406:794:4:0::b",
-      "kavlan-9": "2001:660:4406:795:4:0::b"
+      "kavlan-1": "2001:660:4406:780:4::b",
+      "kavlan-11": "2001:660:4406:1a0:704::b",
+      "kavlan-12": "2001:660:4406:2a0:704::b",
+      "kavlan-13": "2001:660:4406:4a0:704::b",
+      "kavlan-14": "2001:660:4406:5a0:704::b",
+      "kavlan-16": "2001:660:4406:7a0:704::b",
+      "kavlan-18": "2001:660:4406:8a0:704::b",
+      "kavlan-2": "2001:660:4406:781:4::b",
+      "kavlan-20": "2001:660:4406:3a0:704::b",
+      "kavlan-21": "2001:660:4406:6a0:704::b",
+      "kavlan-3": "2001:660:4406:782:4::b",
+      "kavlan-4": "2001:660:4406:790:4::b",
+      "kavlan-5": "2001:660:4406:791:4::b",
+      "kavlan-6": "2001:660:4406:792:4::b",
+      "kavlan-7": "2001:660:4406:793:4::b",
+      "kavlan-8": "2001:660:4406:794:4::b",
+      "kavlan-9": "2001:660:4406:795:4::b"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.11",
-      "ip6": "2001:660:4406:700:4:0::b",
+      "ip6": "2001:660:4406:700:4::b",
       "kavlan": true,
       "mac": "78:e7:d1:f5:ee:f3",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-12.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-12.json
index 6af83863c83b344d49569037faac781694a167ce..a022782db21565796664526832366481da218c42 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-12.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4:0::c",
-      "kavlan-11": "2001:660:4406:1a0:704:0::c",
-      "kavlan-12": "2001:660:4406:2a0:704:0::c",
-      "kavlan-13": "2001:660:4406:4a0:704:0::c",
-      "kavlan-14": "2001:660:4406:5a0:704:0::c",
-      "kavlan-16": "2001:660:4406:7a0:704:0::c",
-      "kavlan-18": "2001:660:4406:8a0:704:0::c",
-      "kavlan-2": "2001:660:4406:781:4:0::c",
-      "kavlan-20": "2001:660:4406:3a0:704:0::c",
-      "kavlan-21": "2001:660:4406:6a0:704:0::c",
-      "kavlan-3": "2001:660:4406:782:4:0::c",
-      "kavlan-4": "2001:660:4406:790:4:0::c",
-      "kavlan-5": "2001:660:4406:791:4:0::c",
-      "kavlan-6": "2001:660:4406:792:4:0::c",
-      "kavlan-7": "2001:660:4406:793:4:0::c",
-      "kavlan-8": "2001:660:4406:794:4:0::c",
-      "kavlan-9": "2001:660:4406:795:4:0::c"
+      "kavlan-1": "2001:660:4406:780:4::c",
+      "kavlan-11": "2001:660:4406:1a0:704::c",
+      "kavlan-12": "2001:660:4406:2a0:704::c",
+      "kavlan-13": "2001:660:4406:4a0:704::c",
+      "kavlan-14": "2001:660:4406:5a0:704::c",
+      "kavlan-16": "2001:660:4406:7a0:704::c",
+      "kavlan-18": "2001:660:4406:8a0:704::c",
+      "kavlan-2": "2001:660:4406:781:4::c",
+      "kavlan-20": "2001:660:4406:3a0:704::c",
+      "kavlan-21": "2001:660:4406:6a0:704::c",
+      "kavlan-3": "2001:660:4406:782:4::c",
+      "kavlan-4": "2001:660:4406:790:4::c",
+      "kavlan-5": "2001:660:4406:791:4::c",
+      "kavlan-6": "2001:660:4406:792:4::c",
+      "kavlan-7": "2001:660:4406:793:4::c",
+      "kavlan-8": "2001:660:4406:794:4::c",
+      "kavlan-9": "2001:660:4406:795:4::c"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.12",
-      "ip6": "2001:660:4406:700:4:0::c",
+      "ip6": "2001:660:4406:700:4::c",
       "kavlan": true,
       "mac": "78:e7:d1:f9:4e:c9",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-15.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-15.json
index 75a9c28a073acce54226cd14a2f93e9a662694bc..ecaeae3fbc439eb526b39b9e9c6b47ac94a57975 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-15.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4:0::f",
-      "kavlan-11": "2001:660:4406:1a0:704:0::f",
-      "kavlan-12": "2001:660:4406:2a0:704:0::f",
-      "kavlan-13": "2001:660:4406:4a0:704:0::f",
-      "kavlan-14": "2001:660:4406:5a0:704:0::f",
-      "kavlan-16": "2001:660:4406:7a0:704:0::f",
-      "kavlan-18": "2001:660:4406:8a0:704:0::f",
-      "kavlan-2": "2001:660:4406:781:4:0::f",
-      "kavlan-20": "2001:660:4406:3a0:704:0::f",
-      "kavlan-21": "2001:660:4406:6a0:704:0::f",
-      "kavlan-3": "2001:660:4406:782:4:0::f",
-      "kavlan-4": "2001:660:4406:790:4:0::f",
-      "kavlan-5": "2001:660:4406:791:4:0::f",
-      "kavlan-6": "2001:660:4406:792:4:0::f",
-      "kavlan-7": "2001:660:4406:793:4:0::f",
-      "kavlan-8": "2001:660:4406:794:4:0::f",
-      "kavlan-9": "2001:660:4406:795:4:0::f"
+      "kavlan-1": "2001:660:4406:780:4::f",
+      "kavlan-11": "2001:660:4406:1a0:704::f",
+      "kavlan-12": "2001:660:4406:2a0:704::f",
+      "kavlan-13": "2001:660:4406:4a0:704::f",
+      "kavlan-14": "2001:660:4406:5a0:704::f",
+      "kavlan-16": "2001:660:4406:7a0:704::f",
+      "kavlan-18": "2001:660:4406:8a0:704::f",
+      "kavlan-2": "2001:660:4406:781:4::f",
+      "kavlan-20": "2001:660:4406:3a0:704::f",
+      "kavlan-21": "2001:660:4406:6a0:704::f",
+      "kavlan-3": "2001:660:4406:782:4::f",
+      "kavlan-4": "2001:660:4406:790:4::f",
+      "kavlan-5": "2001:660:4406:791:4::f",
+      "kavlan-6": "2001:660:4406:792:4::f",
+      "kavlan-7": "2001:660:4406:793:4::f",
+      "kavlan-8": "2001:660:4406:794:4::f",
+      "kavlan-9": "2001:660:4406:795:4::f"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.15",
-      "ip6": "2001:660:4406:700:4:0::f",
+      "ip6": "2001:660:4406:700:4::f",
       "kavlan": true,
       "mac": "78:e7:d1:f5:4f:05",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-19.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-19.json
index d6c29dcd1145a7656d72d83a10f9d7c499e885b7..3479463e286993f9b6dab7b6a804742e9a25a93c 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-19.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-19.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4:0::13",
-      "kavlan-11": "2001:660:4406:1a0:704:0::13",
-      "kavlan-12": "2001:660:4406:2a0:704:0::13",
-      "kavlan-13": "2001:660:4406:4a0:704:0::13",
-      "kavlan-14": "2001:660:4406:5a0:704:0::13",
-      "kavlan-16": "2001:660:4406:7a0:704:0::13",
-      "kavlan-18": "2001:660:4406:8a0:704:0::13",
-      "kavlan-2": "2001:660:4406:781:4:0::13",
-      "kavlan-20": "2001:660:4406:3a0:704:0::13",
-      "kavlan-21": "2001:660:4406:6a0:704:0::13",
-      "kavlan-3": "2001:660:4406:782:4:0::13",
-      "kavlan-4": "2001:660:4406:790:4:0::13",
-      "kavlan-5": "2001:660:4406:791:4:0::13",
-      "kavlan-6": "2001:660:4406:792:4:0::13",
-      "kavlan-7": "2001:660:4406:793:4:0::13",
-      "kavlan-8": "2001:660:4406:794:4:0::13",
-      "kavlan-9": "2001:660:4406:795:4:0::13"
+      "kavlan-1": "2001:660:4406:780:4::13",
+      "kavlan-11": "2001:660:4406:1a0:704::13",
+      "kavlan-12": "2001:660:4406:2a0:704::13",
+      "kavlan-13": "2001:660:4406:4a0:704::13",
+      "kavlan-14": "2001:660:4406:5a0:704::13",
+      "kavlan-16": "2001:660:4406:7a0:704::13",
+      "kavlan-18": "2001:660:4406:8a0:704::13",
+      "kavlan-2": "2001:660:4406:781:4::13",
+      "kavlan-20": "2001:660:4406:3a0:704::13",
+      "kavlan-21": "2001:660:4406:6a0:704::13",
+      "kavlan-3": "2001:660:4406:782:4::13",
+      "kavlan-4": "2001:660:4406:790:4::13",
+      "kavlan-5": "2001:660:4406:791:4::13",
+      "kavlan-6": "2001:660:4406:792:4::13",
+      "kavlan-7": "2001:660:4406:793:4::13",
+      "kavlan-8": "2001:660:4406:794:4::13",
+      "kavlan-9": "2001:660:4406:795:4::13"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.19",
-      "ip6": "2001:660:4406:700:4:0::13",
+      "ip6": "2001:660:4406:700:4::13",
       "kavlan": true,
       "mac": "d4:85:64:45:b5:37",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-2.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-2.json
index e76272524318b14ec8ae15fa64e6d2da0bb00d9a..0ec522658176c5170f88bfe9044c4c1107b01d72 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-2.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4:0::2",
-      "kavlan-11": "2001:660:4406:1a0:704:0::2",
-      "kavlan-12": "2001:660:4406:2a0:704:0::2",
-      "kavlan-13": "2001:660:4406:4a0:704:0::2",
-      "kavlan-14": "2001:660:4406:5a0:704:0::2",
-      "kavlan-16": "2001:660:4406:7a0:704:0::2",
-      "kavlan-18": "2001:660:4406:8a0:704:0::2",
-      "kavlan-2": "2001:660:4406:781:4:0::2",
-      "kavlan-20": "2001:660:4406:3a0:704:0::2",
-      "kavlan-21": "2001:660:4406:6a0:704:0::2",
-      "kavlan-3": "2001:660:4406:782:4:0::2",
-      "kavlan-4": "2001:660:4406:790:4:0::2",
-      "kavlan-5": "2001:660:4406:791:4:0::2",
-      "kavlan-6": "2001:660:4406:792:4:0::2",
-      "kavlan-7": "2001:660:4406:793:4:0::2",
-      "kavlan-8": "2001:660:4406:794:4:0::2",
-      "kavlan-9": "2001:660:4406:795:4:0::2"
+      "kavlan-1": "2001:660:4406:780:4::2",
+      "kavlan-11": "2001:660:4406:1a0:704::2",
+      "kavlan-12": "2001:660:4406:2a0:704::2",
+      "kavlan-13": "2001:660:4406:4a0:704::2",
+      "kavlan-14": "2001:660:4406:5a0:704::2",
+      "kavlan-16": "2001:660:4406:7a0:704::2",
+      "kavlan-18": "2001:660:4406:8a0:704::2",
+      "kavlan-2": "2001:660:4406:781:4::2",
+      "kavlan-20": "2001:660:4406:3a0:704::2",
+      "kavlan-21": "2001:660:4406:6a0:704::2",
+      "kavlan-3": "2001:660:4406:782:4::2",
+      "kavlan-4": "2001:660:4406:790:4::2",
+      "kavlan-5": "2001:660:4406:791:4::2",
+      "kavlan-6": "2001:660:4406:792:4::2",
+      "kavlan-7": "2001:660:4406:793:4::2",
+      "kavlan-8": "2001:660:4406:794:4::2",
+      "kavlan-9": "2001:660:4406:795:4::2"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.2",
-      "ip6": "2001:660:4406:700:4:0::2",
+      "ip6": "2001:660:4406:700:4::2",
       "kavlan": true,
       "mac": "d8:d3:85:e6:a5:a3",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-20.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-20.json
index e7d1becdbd94e493186f0dcb11866a9f4dc91d1d..9fe2432e21541f41a14ea43d116461ab20f01478 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-20.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-20.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4:0::14",
-      "kavlan-11": "2001:660:4406:1a0:704:0::14",
-      "kavlan-12": "2001:660:4406:2a0:704:0::14",
-      "kavlan-13": "2001:660:4406:4a0:704:0::14",
-      "kavlan-14": "2001:660:4406:5a0:704:0::14",
-      "kavlan-16": "2001:660:4406:7a0:704:0::14",
-      "kavlan-18": "2001:660:4406:8a0:704:0::14",
-      "kavlan-2": "2001:660:4406:781:4:0::14",
-      "kavlan-20": "2001:660:4406:3a0:704:0::14",
-      "kavlan-21": "2001:660:4406:6a0:704:0::14",
-      "kavlan-3": "2001:660:4406:782:4:0::14",
-      "kavlan-4": "2001:660:4406:790:4:0::14",
-      "kavlan-5": "2001:660:4406:791:4:0::14",
-      "kavlan-6": "2001:660:4406:792:4:0::14",
-      "kavlan-7": "2001:660:4406:793:4:0::14",
-      "kavlan-8": "2001:660:4406:794:4:0::14",
-      "kavlan-9": "2001:660:4406:795:4:0::14"
+      "kavlan-1": "2001:660:4406:780:4::14",
+      "kavlan-11": "2001:660:4406:1a0:704::14",
+      "kavlan-12": "2001:660:4406:2a0:704::14",
+      "kavlan-13": "2001:660:4406:4a0:704::14",
+      "kavlan-14": "2001:660:4406:5a0:704::14",
+      "kavlan-16": "2001:660:4406:7a0:704::14",
+      "kavlan-18": "2001:660:4406:8a0:704::14",
+      "kavlan-2": "2001:660:4406:781:4::14",
+      "kavlan-20": "2001:660:4406:3a0:704::14",
+      "kavlan-21": "2001:660:4406:6a0:704::14",
+      "kavlan-3": "2001:660:4406:782:4::14",
+      "kavlan-4": "2001:660:4406:790:4::14",
+      "kavlan-5": "2001:660:4406:791:4::14",
+      "kavlan-6": "2001:660:4406:792:4::14",
+      "kavlan-7": "2001:660:4406:793:4::14",
+      "kavlan-8": "2001:660:4406:794:4::14",
+      "kavlan-9": "2001:660:4406:795:4::14"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.20",
-      "ip6": "2001:660:4406:700:4:0::14",
+      "ip6": "2001:660:4406:700:4::14",
       "kavlan": true,
       "mac": "78:e7:d1:f5:fe:99",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-21.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-21.json
index 19b637330b3827a1594c330af33f83b7f8559ee8..aefbca2cb827cabe3ae6b5fd956502dac6c47e70 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-21.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-21.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4:0::15",
-      "kavlan-11": "2001:660:4406:1a0:704:0::15",
-      "kavlan-12": "2001:660:4406:2a0:704:0::15",
-      "kavlan-13": "2001:660:4406:4a0:704:0::15",
-      "kavlan-14": "2001:660:4406:5a0:704:0::15",
-      "kavlan-16": "2001:660:4406:7a0:704:0::15",
-      "kavlan-18": "2001:660:4406:8a0:704:0::15",
-      "kavlan-2": "2001:660:4406:781:4:0::15",
-      "kavlan-20": "2001:660:4406:3a0:704:0::15",
-      "kavlan-21": "2001:660:4406:6a0:704:0::15",
-      "kavlan-3": "2001:660:4406:782:4:0::15",
-      "kavlan-4": "2001:660:4406:790:4:0::15",
-      "kavlan-5": "2001:660:4406:791:4:0::15",
-      "kavlan-6": "2001:660:4406:792:4:0::15",
-      "kavlan-7": "2001:660:4406:793:4:0::15",
-      "kavlan-8": "2001:660:4406:794:4:0::15",
-      "kavlan-9": "2001:660:4406:795:4:0::15"
+      "kavlan-1": "2001:660:4406:780:4::15",
+      "kavlan-11": "2001:660:4406:1a0:704::15",
+      "kavlan-12": "2001:660:4406:2a0:704::15",
+      "kavlan-13": "2001:660:4406:4a0:704::15",
+      "kavlan-14": "2001:660:4406:5a0:704::15",
+      "kavlan-16": "2001:660:4406:7a0:704::15",
+      "kavlan-18": "2001:660:4406:8a0:704::15",
+      "kavlan-2": "2001:660:4406:781:4::15",
+      "kavlan-20": "2001:660:4406:3a0:704::15",
+      "kavlan-21": "2001:660:4406:6a0:704::15",
+      "kavlan-3": "2001:660:4406:782:4::15",
+      "kavlan-4": "2001:660:4406:790:4::15",
+      "kavlan-5": "2001:660:4406:791:4::15",
+      "kavlan-6": "2001:660:4406:792:4::15",
+      "kavlan-7": "2001:660:4406:793:4::15",
+      "kavlan-8": "2001:660:4406:794:4::15",
+      "kavlan-9": "2001:660:4406:795:4::15"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.21",
-      "ip6": "2001:660:4406:700:4:0::15",
+      "ip6": "2001:660:4406:700:4::15",
       "kavlan": true,
       "mac": "78:e7:d1:f5:de:b5",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-22.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-22.json
index e09184d9ed455ca9e9666ee6e33a9892e098da86..45eea9c576259b8c5b3ffaf48c536ad26d9d5dd4 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-22.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-22.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4:0::16",
-      "kavlan-11": "2001:660:4406:1a0:704:0::16",
-      "kavlan-12": "2001:660:4406:2a0:704:0::16",
-      "kavlan-13": "2001:660:4406:4a0:704:0::16",
-      "kavlan-14": "2001:660:4406:5a0:704:0::16",
-      "kavlan-16": "2001:660:4406:7a0:704:0::16",
-      "kavlan-18": "2001:660:4406:8a0:704:0::16",
-      "kavlan-2": "2001:660:4406:781:4:0::16",
-      "kavlan-20": "2001:660:4406:3a0:704:0::16",
-      "kavlan-21": "2001:660:4406:6a0:704:0::16",
-      "kavlan-3": "2001:660:4406:782:4:0::16",
-      "kavlan-4": "2001:660:4406:790:4:0::16",
-      "kavlan-5": "2001:660:4406:791:4:0::16",
-      "kavlan-6": "2001:660:4406:792:4:0::16",
-      "kavlan-7": "2001:660:4406:793:4:0::16",
-      "kavlan-8": "2001:660:4406:794:4:0::16",
-      "kavlan-9": "2001:660:4406:795:4:0::16"
+      "kavlan-1": "2001:660:4406:780:4::16",
+      "kavlan-11": "2001:660:4406:1a0:704::16",
+      "kavlan-12": "2001:660:4406:2a0:704::16",
+      "kavlan-13": "2001:660:4406:4a0:704::16",
+      "kavlan-14": "2001:660:4406:5a0:704::16",
+      "kavlan-16": "2001:660:4406:7a0:704::16",
+      "kavlan-18": "2001:660:4406:8a0:704::16",
+      "kavlan-2": "2001:660:4406:781:4::16",
+      "kavlan-20": "2001:660:4406:3a0:704::16",
+      "kavlan-21": "2001:660:4406:6a0:704::16",
+      "kavlan-3": "2001:660:4406:782:4::16",
+      "kavlan-4": "2001:660:4406:790:4::16",
+      "kavlan-5": "2001:660:4406:791:4::16",
+      "kavlan-6": "2001:660:4406:792:4::16",
+      "kavlan-7": "2001:660:4406:793:4::16",
+      "kavlan-8": "2001:660:4406:794:4::16",
+      "kavlan-9": "2001:660:4406:795:4::16"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.22",
-      "ip6": "2001:660:4406:700:4:0::16",
+      "ip6": "2001:660:4406:700:4::16",
       "kavlan": true,
       "mac": "d4:85:64:43:5b:8d",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-25.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-25.json
index a5bbddd1fbb164acc10b04ac36f3e0c1f6928d4b..8cebf9a701af6a2855f764e6189ccbdbd0ba0677 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-25.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-25.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4:0::19",
-      "kavlan-11": "2001:660:4406:1a0:704:0::19",
-      "kavlan-12": "2001:660:4406:2a0:704:0::19",
-      "kavlan-13": "2001:660:4406:4a0:704:0::19",
-      "kavlan-14": "2001:660:4406:5a0:704:0::19",
-      "kavlan-16": "2001:660:4406:7a0:704:0::19",
-      "kavlan-18": "2001:660:4406:8a0:704:0::19",
-      "kavlan-2": "2001:660:4406:781:4:0::19",
-      "kavlan-20": "2001:660:4406:3a0:704:0::19",
-      "kavlan-21": "2001:660:4406:6a0:704:0::19",
-      "kavlan-3": "2001:660:4406:782:4:0::19",
-      "kavlan-4": "2001:660:4406:790:4:0::19",
-      "kavlan-5": "2001:660:4406:791:4:0::19",
-      "kavlan-6": "2001:660:4406:792:4:0::19",
-      "kavlan-7": "2001:660:4406:793:4:0::19",
-      "kavlan-8": "2001:660:4406:794:4:0::19",
-      "kavlan-9": "2001:660:4406:795:4:0::19"
+      "kavlan-1": "2001:660:4406:780:4::19",
+      "kavlan-11": "2001:660:4406:1a0:704::19",
+      "kavlan-12": "2001:660:4406:2a0:704::19",
+      "kavlan-13": "2001:660:4406:4a0:704::19",
+      "kavlan-14": "2001:660:4406:5a0:704::19",
+      "kavlan-16": "2001:660:4406:7a0:704::19",
+      "kavlan-18": "2001:660:4406:8a0:704::19",
+      "kavlan-2": "2001:660:4406:781:4::19",
+      "kavlan-20": "2001:660:4406:3a0:704::19",
+      "kavlan-21": "2001:660:4406:6a0:704::19",
+      "kavlan-3": "2001:660:4406:782:4::19",
+      "kavlan-4": "2001:660:4406:790:4::19",
+      "kavlan-5": "2001:660:4406:791:4::19",
+      "kavlan-6": "2001:660:4406:792:4::19",
+      "kavlan-7": "2001:660:4406:793:4::19",
+      "kavlan-8": "2001:660:4406:794:4::19",
+      "kavlan-9": "2001:660:4406:795:4::19"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.25",
-      "ip6": "2001:660:4406:700:4:0::19",
+      "ip6": "2001:660:4406:700:4::19",
       "kavlan": true,
       "mac": "78:e7:d1:f9:5e:29",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-28.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-28.json
index 3b2786175f364ebbfb1f9c4e25d5efebd1861f67..31ff7bb242484916addfb819d547c6cd2889647f 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-28.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-28.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4:0::1c",
-      "kavlan-11": "2001:660:4406:1a0:704:0::1c",
-      "kavlan-12": "2001:660:4406:2a0:704:0::1c",
-      "kavlan-13": "2001:660:4406:4a0:704:0::1c",
-      "kavlan-14": "2001:660:4406:5a0:704:0::1c",
-      "kavlan-16": "2001:660:4406:7a0:704:0::1c",
-      "kavlan-18": "2001:660:4406:8a0:704:0::1c",
-      "kavlan-2": "2001:660:4406:781:4:0::1c",
-      "kavlan-20": "2001:660:4406:3a0:704:0::1c",
-      "kavlan-21": "2001:660:4406:6a0:704:0::1c",
-      "kavlan-3": "2001:660:4406:782:4:0::1c",
-      "kavlan-4": "2001:660:4406:790:4:0::1c",
-      "kavlan-5": "2001:660:4406:791:4:0::1c",
-      "kavlan-6": "2001:660:4406:792:4:0::1c",
-      "kavlan-7": "2001:660:4406:793:4:0::1c",
-      "kavlan-8": "2001:660:4406:794:4:0::1c",
-      "kavlan-9": "2001:660:4406:795:4:0::1c"
+      "kavlan-1": "2001:660:4406:780:4::1c",
+      "kavlan-11": "2001:660:4406:1a0:704::1c",
+      "kavlan-12": "2001:660:4406:2a0:704::1c",
+      "kavlan-13": "2001:660:4406:4a0:704::1c",
+      "kavlan-14": "2001:660:4406:5a0:704::1c",
+      "kavlan-16": "2001:660:4406:7a0:704::1c",
+      "kavlan-18": "2001:660:4406:8a0:704::1c",
+      "kavlan-2": "2001:660:4406:781:4::1c",
+      "kavlan-20": "2001:660:4406:3a0:704::1c",
+      "kavlan-21": "2001:660:4406:6a0:704::1c",
+      "kavlan-3": "2001:660:4406:782:4::1c",
+      "kavlan-4": "2001:660:4406:790:4::1c",
+      "kavlan-5": "2001:660:4406:791:4::1c",
+      "kavlan-6": "2001:660:4406:792:4::1c",
+      "kavlan-7": "2001:660:4406:793:4::1c",
+      "kavlan-8": "2001:660:4406:794:4::1c",
+      "kavlan-9": "2001:660:4406:795:4::1c"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.28",
-      "ip6": "2001:660:4406:700:4:0::1c",
+      "ip6": "2001:660:4406:700:4::1c",
       "kavlan": true,
       "mac": "78:e7:d1:f9:8e:53",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-31.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-31.json
index 796a76ebfc259ad986c74ea5a435ecd5a4fe41f2..8cd09cac8e784dacb15a49729b9714f917f55905 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-31.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-31.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4:0::1f",
-      "kavlan-11": "2001:660:4406:1a0:704:0::1f",
-      "kavlan-12": "2001:660:4406:2a0:704:0::1f",
-      "kavlan-13": "2001:660:4406:4a0:704:0::1f",
-      "kavlan-14": "2001:660:4406:5a0:704:0::1f",
-      "kavlan-16": "2001:660:4406:7a0:704:0::1f",
-      "kavlan-18": "2001:660:4406:8a0:704:0::1f",
-      "kavlan-2": "2001:660:4406:781:4:0::1f",
-      "kavlan-20": "2001:660:4406:3a0:704:0::1f",
-      "kavlan-21": "2001:660:4406:6a0:704:0::1f",
-      "kavlan-3": "2001:660:4406:782:4:0::1f",
-      "kavlan-4": "2001:660:4406:790:4:0::1f",
-      "kavlan-5": "2001:660:4406:791:4:0::1f",
-      "kavlan-6": "2001:660:4406:792:4:0::1f",
-      "kavlan-7": "2001:660:4406:793:4:0::1f",
-      "kavlan-8": "2001:660:4406:794:4:0::1f",
-      "kavlan-9": "2001:660:4406:795:4:0::1f"
+      "kavlan-1": "2001:660:4406:780:4::1f",
+      "kavlan-11": "2001:660:4406:1a0:704::1f",
+      "kavlan-12": "2001:660:4406:2a0:704::1f",
+      "kavlan-13": "2001:660:4406:4a0:704::1f",
+      "kavlan-14": "2001:660:4406:5a0:704::1f",
+      "kavlan-16": "2001:660:4406:7a0:704::1f",
+      "kavlan-18": "2001:660:4406:8a0:704::1f",
+      "kavlan-2": "2001:660:4406:781:4::1f",
+      "kavlan-20": "2001:660:4406:3a0:704::1f",
+      "kavlan-21": "2001:660:4406:6a0:704::1f",
+      "kavlan-3": "2001:660:4406:782:4::1f",
+      "kavlan-4": "2001:660:4406:790:4::1f",
+      "kavlan-5": "2001:660:4406:791:4::1f",
+      "kavlan-6": "2001:660:4406:792:4::1f",
+      "kavlan-7": "2001:660:4406:793:4::1f",
+      "kavlan-8": "2001:660:4406:794:4::1f",
+      "kavlan-9": "2001:660:4406:795:4::1f"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.31",
-      "ip6": "2001:660:4406:700:4:0::1f",
+      "ip6": "2001:660:4406:700:4::1f",
       "kavlan": true,
       "mac": "78:e7:d1:f9:be:39",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-32.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-32.json
index 5018a27887fff05e9f9eecd3ab4981ae6a3168af..990d293a2d6d0235ca1970973cd74b6f2ebae18e 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-32.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-32.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4:0::20",
-      "kavlan-11": "2001:660:4406:1a0:704:0::20",
-      "kavlan-12": "2001:660:4406:2a0:704:0::20",
-      "kavlan-13": "2001:660:4406:4a0:704:0::20",
-      "kavlan-14": "2001:660:4406:5a0:704:0::20",
-      "kavlan-16": "2001:660:4406:7a0:704:0::20",
-      "kavlan-18": "2001:660:4406:8a0:704:0::20",
-      "kavlan-2": "2001:660:4406:781:4:0::20",
-      "kavlan-20": "2001:660:4406:3a0:704:0::20",
-      "kavlan-21": "2001:660:4406:6a0:704:0::20",
-      "kavlan-3": "2001:660:4406:782:4:0::20",
-      "kavlan-4": "2001:660:4406:790:4:0::20",
-      "kavlan-5": "2001:660:4406:791:4:0::20",
-      "kavlan-6": "2001:660:4406:792:4:0::20",
-      "kavlan-7": "2001:660:4406:793:4:0::20",
-      "kavlan-8": "2001:660:4406:794:4:0::20",
-      "kavlan-9": "2001:660:4406:795:4:0::20"
+      "kavlan-1": "2001:660:4406:780:4::20",
+      "kavlan-11": "2001:660:4406:1a0:704::20",
+      "kavlan-12": "2001:660:4406:2a0:704::20",
+      "kavlan-13": "2001:660:4406:4a0:704::20",
+      "kavlan-14": "2001:660:4406:5a0:704::20",
+      "kavlan-16": "2001:660:4406:7a0:704::20",
+      "kavlan-18": "2001:660:4406:8a0:704::20",
+      "kavlan-2": "2001:660:4406:781:4::20",
+      "kavlan-20": "2001:660:4406:3a0:704::20",
+      "kavlan-21": "2001:660:4406:6a0:704::20",
+      "kavlan-3": "2001:660:4406:782:4::20",
+      "kavlan-4": "2001:660:4406:790:4::20",
+      "kavlan-5": "2001:660:4406:791:4::20",
+      "kavlan-6": "2001:660:4406:792:4::20",
+      "kavlan-7": "2001:660:4406:793:4::20",
+      "kavlan-8": "2001:660:4406:794:4::20",
+      "kavlan-9": "2001:660:4406:795:4::20"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.32",
-      "ip6": "2001:660:4406:700:4:0::20",
+      "ip6": "2001:660:4406:700:4::20",
       "kavlan": true,
       "mac": "d8:d3:85:e6:a5:6d",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-35.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-35.json
index b39518e77eba9ff8fe52b035488daee9162d6eca..3f7df34589431f700da3b28c3e2338f0f83b7d4b 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-35.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-35.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4:0::23",
-      "kavlan-11": "2001:660:4406:1a0:704:0::23",
-      "kavlan-12": "2001:660:4406:2a0:704:0::23",
-      "kavlan-13": "2001:660:4406:4a0:704:0::23",
-      "kavlan-14": "2001:660:4406:5a0:704:0::23",
-      "kavlan-16": "2001:660:4406:7a0:704:0::23",
-      "kavlan-18": "2001:660:4406:8a0:704:0::23",
-      "kavlan-2": "2001:660:4406:781:4:0::23",
-      "kavlan-20": "2001:660:4406:3a0:704:0::23",
-      "kavlan-21": "2001:660:4406:6a0:704:0::23",
-      "kavlan-3": "2001:660:4406:782:4:0::23",
-      "kavlan-4": "2001:660:4406:790:4:0::23",
-      "kavlan-5": "2001:660:4406:791:4:0::23",
-      "kavlan-6": "2001:660:4406:792:4:0::23",
-      "kavlan-7": "2001:660:4406:793:4:0::23",
-      "kavlan-8": "2001:660:4406:794:4:0::23",
-      "kavlan-9": "2001:660:4406:795:4:0::23"
+      "kavlan-1": "2001:660:4406:780:4::23",
+      "kavlan-11": "2001:660:4406:1a0:704::23",
+      "kavlan-12": "2001:660:4406:2a0:704::23",
+      "kavlan-13": "2001:660:4406:4a0:704::23",
+      "kavlan-14": "2001:660:4406:5a0:704::23",
+      "kavlan-16": "2001:660:4406:7a0:704::23",
+      "kavlan-18": "2001:660:4406:8a0:704::23",
+      "kavlan-2": "2001:660:4406:781:4::23",
+      "kavlan-20": "2001:660:4406:3a0:704::23",
+      "kavlan-21": "2001:660:4406:6a0:704::23",
+      "kavlan-3": "2001:660:4406:782:4::23",
+      "kavlan-4": "2001:660:4406:790:4::23",
+      "kavlan-5": "2001:660:4406:791:4::23",
+      "kavlan-6": "2001:660:4406:792:4::23",
+      "kavlan-7": "2001:660:4406:793:4::23",
+      "kavlan-8": "2001:660:4406:794:4::23",
+      "kavlan-9": "2001:660:4406:795:4::23"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.35",
-      "ip6": "2001:660:4406:700:4:0::23",
+      "ip6": "2001:660:4406:700:4::23",
       "kavlan": true,
       "mac": "78:e7:d1:f9:ae:21",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-38.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-38.json
index 167c18cf1376f416feb88ac40f898c425ff6e5cf..a242318335ade755400eb9b494cd85592efcd6be 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-38.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-38.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4:0::26",
-      "kavlan-11": "2001:660:4406:1a0:704:0::26",
-      "kavlan-12": "2001:660:4406:2a0:704:0::26",
-      "kavlan-13": "2001:660:4406:4a0:704:0::26",
-      "kavlan-14": "2001:660:4406:5a0:704:0::26",
-      "kavlan-16": "2001:660:4406:7a0:704:0::26",
-      "kavlan-18": "2001:660:4406:8a0:704:0::26",
-      "kavlan-2": "2001:660:4406:781:4:0::26",
-      "kavlan-20": "2001:660:4406:3a0:704:0::26",
-      "kavlan-21": "2001:660:4406:6a0:704:0::26",
-      "kavlan-3": "2001:660:4406:782:4:0::26",
-      "kavlan-4": "2001:660:4406:790:4:0::26",
-      "kavlan-5": "2001:660:4406:791:4:0::26",
-      "kavlan-6": "2001:660:4406:792:4:0::26",
-      "kavlan-7": "2001:660:4406:793:4:0::26",
-      "kavlan-8": "2001:660:4406:794:4:0::26",
-      "kavlan-9": "2001:660:4406:795:4:0::26"
+      "kavlan-1": "2001:660:4406:780:4::26",
+      "kavlan-11": "2001:660:4406:1a0:704::26",
+      "kavlan-12": "2001:660:4406:2a0:704::26",
+      "kavlan-13": "2001:660:4406:4a0:704::26",
+      "kavlan-14": "2001:660:4406:5a0:704::26",
+      "kavlan-16": "2001:660:4406:7a0:704::26",
+      "kavlan-18": "2001:660:4406:8a0:704::26",
+      "kavlan-2": "2001:660:4406:781:4::26",
+      "kavlan-20": "2001:660:4406:3a0:704::26",
+      "kavlan-21": "2001:660:4406:6a0:704::26",
+      "kavlan-3": "2001:660:4406:782:4::26",
+      "kavlan-4": "2001:660:4406:790:4::26",
+      "kavlan-5": "2001:660:4406:791:4::26",
+      "kavlan-6": "2001:660:4406:792:4::26",
+      "kavlan-7": "2001:660:4406:793:4::26",
+      "kavlan-8": "2001:660:4406:794:4::26",
+      "kavlan-9": "2001:660:4406:795:4::26"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.38",
-      "ip6": "2001:660:4406:700:4:0::26",
+      "ip6": "2001:660:4406:700:4::26",
       "kavlan": true,
       "mac": "78:e7:d1:f5:3f:5b",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-9.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-9.json
index 255f4c4d71dbab975cd8a73246924c7b13b9bded..5ce7a957132f04512f1f10620c157009b684e047 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-9.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4:0::9",
-      "kavlan-11": "2001:660:4406:1a0:704:0::9",
-      "kavlan-12": "2001:660:4406:2a0:704:0::9",
-      "kavlan-13": "2001:660:4406:4a0:704:0::9",
-      "kavlan-14": "2001:660:4406:5a0:704:0::9",
-      "kavlan-16": "2001:660:4406:7a0:704:0::9",
-      "kavlan-18": "2001:660:4406:8a0:704:0::9",
-      "kavlan-2": "2001:660:4406:781:4:0::9",
-      "kavlan-20": "2001:660:4406:3a0:704:0::9",
-      "kavlan-21": "2001:660:4406:6a0:704:0::9",
-      "kavlan-3": "2001:660:4406:782:4:0::9",
-      "kavlan-4": "2001:660:4406:790:4:0::9",
-      "kavlan-5": "2001:660:4406:791:4:0::9",
-      "kavlan-6": "2001:660:4406:792:4:0::9",
-      "kavlan-7": "2001:660:4406:793:4:0::9",
-      "kavlan-8": "2001:660:4406:794:4:0::9",
-      "kavlan-9": "2001:660:4406:795:4:0::9"
+      "kavlan-1": "2001:660:4406:780:4::9",
+      "kavlan-11": "2001:660:4406:1a0:704::9",
+      "kavlan-12": "2001:660:4406:2a0:704::9",
+      "kavlan-13": "2001:660:4406:4a0:704::9",
+      "kavlan-14": "2001:660:4406:5a0:704::9",
+      "kavlan-16": "2001:660:4406:7a0:704::9",
+      "kavlan-18": "2001:660:4406:8a0:704::9",
+      "kavlan-2": "2001:660:4406:781:4::9",
+      "kavlan-20": "2001:660:4406:3a0:704::9",
+      "kavlan-21": "2001:660:4406:6a0:704::9",
+      "kavlan-3": "2001:660:4406:782:4::9",
+      "kavlan-4": "2001:660:4406:790:4::9",
+      "kavlan-5": "2001:660:4406:791:4::9",
+      "kavlan-6": "2001:660:4406:792:4::9",
+      "kavlan-7": "2001:660:4406:793:4::9",
+      "kavlan-8": "2001:660:4406:794:4::9",
+      "kavlan-9": "2001:660:4406:795:4::9"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.9",
-      "ip6": "2001:660:4406:700:4:0::9",
+      "ip6": "2001:660:4406:700:4::9",
       "kavlan": true,
       "mac": "78:e7:d1:f9:8e:f7",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-1.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-1.json
index 3900c48a4ede7b2e9f5df7e0948cf5ad8366849e..c5ea874720406159d74fb09c375704429262fdc4 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-1.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-1.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::1",
-      "kavlan-11": "2001:660:4406:1a0:702:0::1",
-      "kavlan-12": "2001:660:4406:2a0:702:0::1",
-      "kavlan-13": "2001:660:4406:4a0:702:0::1",
-      "kavlan-14": "2001:660:4406:5a0:702:0::1",
-      "kavlan-16": "2001:660:4406:7a0:702:0::1",
-      "kavlan-18": "2001:660:4406:8a0:702:0::1",
-      "kavlan-2": "2001:660:4406:781:2:0::1",
-      "kavlan-20": "2001:660:4406:3a0:702:0::1",
-      "kavlan-21": "2001:660:4406:6a0:702:0::1",
-      "kavlan-3": "2001:660:4406:782:2:0::1",
-      "kavlan-4": "2001:660:4406:790:2:0::1",
-      "kavlan-5": "2001:660:4406:791:2:0::1",
-      "kavlan-6": "2001:660:4406:792:2:0::1",
-      "kavlan-7": "2001:660:4406:793:2:0::1",
-      "kavlan-8": "2001:660:4406:794:2:0::1",
-      "kavlan-9": "2001:660:4406:795:2:0::1"
+      "kavlan-1": "2001:660:4406:780:2::1",
+      "kavlan-11": "2001:660:4406:1a0:702::1",
+      "kavlan-12": "2001:660:4406:2a0:702::1",
+      "kavlan-13": "2001:660:4406:4a0:702::1",
+      "kavlan-14": "2001:660:4406:5a0:702::1",
+      "kavlan-16": "2001:660:4406:7a0:702::1",
+      "kavlan-18": "2001:660:4406:8a0:702::1",
+      "kavlan-2": "2001:660:4406:781:2::1",
+      "kavlan-20": "2001:660:4406:3a0:702::1",
+      "kavlan-21": "2001:660:4406:6a0:702::1",
+      "kavlan-3": "2001:660:4406:782:2::1",
+      "kavlan-4": "2001:660:4406:790:2::1",
+      "kavlan-5": "2001:660:4406:791:2::1",
+      "kavlan-6": "2001:660:4406:792:2::1",
+      "kavlan-7": "2001:660:4406:793:2::1",
+      "kavlan-8": "2001:660:4406:794:2::1",
+      "kavlan-9": "2001:660:4406:795:2::1"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::1",
-      "kavlan-11": "2001:660:4406:1a0:702:1::1",
-      "kavlan-12": "2001:660:4406:2a0:702:1::1",
-      "kavlan-13": "2001:660:4406:4a0:702:1::1",
-      "kavlan-14": "2001:660:4406:5a0:702:1::1",
-      "kavlan-16": "2001:660:4406:7a0:702:1::1",
-      "kavlan-18": "2001:660:4406:8a0:702:1::1",
-      "kavlan-2": "2001:660:4406:781:2:1::1",
-      "kavlan-20": "2001:660:4406:3a0:702:1::1",
-      "kavlan-21": "2001:660:4406:6a0:702:1::1",
-      "kavlan-3": "2001:660:4406:782:2:1::1",
-      "kavlan-4": "2001:660:4406:790:2:1::1",
-      "kavlan-5": "2001:660:4406:791:2:1::1",
-      "kavlan-6": "2001:660:4406:792:2:1::1",
-      "kavlan-7": "2001:660:4406:793:2:1::1",
-      "kavlan-8": "2001:660:4406:794:2:1::1",
-      "kavlan-9": "2001:660:4406:795:2:1::1"
+      "kavlan-1": "2001:660:4406:780:2:1:0:1",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:1",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:1",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:1",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:1",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:1",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:1",
+      "kavlan-2": "2001:660:4406:781:2:1:0:1",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:1",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:1",
+      "kavlan-3": "2001:660:4406:782:2:1:0:1",
+      "kavlan-4": "2001:660:4406:790:2:1:0:1",
+      "kavlan-5": "2001:660:4406:791:2:1:0:1",
+      "kavlan-6": "2001:660:4406:792:2:1:0:1",
+      "kavlan-7": "2001:660:4406:793:2:1:0:1",
+      "kavlan-8": "2001:660:4406:794:2:1:0:1",
+      "kavlan-9": "2001:660:4406:795:2:1:0:1"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.1",
-      "ip6": "2001:660:4406:700:2:0::1",
+      "ip6": "2001:660:4406:700:2::1",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f9:d8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.101",
-      "ip6": "2001:660:4406:700:2:1::1",
+      "ip6": "2001:660:4406:700:2:1:0:1",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f9:da",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-10.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-10.json
index e87564e5d8972074cfee550b21d4703cdbe62dbf..7b309316c5642d9499b316c3e3a39496c727f1e5 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-10.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-10.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::a",
-      "kavlan-11": "2001:660:4406:1a0:702:0::a",
-      "kavlan-12": "2001:660:4406:2a0:702:0::a",
-      "kavlan-13": "2001:660:4406:4a0:702:0::a",
-      "kavlan-14": "2001:660:4406:5a0:702:0::a",
-      "kavlan-16": "2001:660:4406:7a0:702:0::a",
-      "kavlan-18": "2001:660:4406:8a0:702:0::a",
-      "kavlan-2": "2001:660:4406:781:2:0::a",
-      "kavlan-20": "2001:660:4406:3a0:702:0::a",
-      "kavlan-21": "2001:660:4406:6a0:702:0::a",
-      "kavlan-3": "2001:660:4406:782:2:0::a",
-      "kavlan-4": "2001:660:4406:790:2:0::a",
-      "kavlan-5": "2001:660:4406:791:2:0::a",
-      "kavlan-6": "2001:660:4406:792:2:0::a",
-      "kavlan-7": "2001:660:4406:793:2:0::a",
-      "kavlan-8": "2001:660:4406:794:2:0::a",
-      "kavlan-9": "2001:660:4406:795:2:0::a"
+      "kavlan-1": "2001:660:4406:780:2::a",
+      "kavlan-11": "2001:660:4406:1a0:702::a",
+      "kavlan-12": "2001:660:4406:2a0:702::a",
+      "kavlan-13": "2001:660:4406:4a0:702::a",
+      "kavlan-14": "2001:660:4406:5a0:702::a",
+      "kavlan-16": "2001:660:4406:7a0:702::a",
+      "kavlan-18": "2001:660:4406:8a0:702::a",
+      "kavlan-2": "2001:660:4406:781:2::a",
+      "kavlan-20": "2001:660:4406:3a0:702::a",
+      "kavlan-21": "2001:660:4406:6a0:702::a",
+      "kavlan-3": "2001:660:4406:782:2::a",
+      "kavlan-4": "2001:660:4406:790:2::a",
+      "kavlan-5": "2001:660:4406:791:2::a",
+      "kavlan-6": "2001:660:4406:792:2::a",
+      "kavlan-7": "2001:660:4406:793:2::a",
+      "kavlan-8": "2001:660:4406:794:2::a",
+      "kavlan-9": "2001:660:4406:795:2::a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::a",
-      "kavlan-11": "2001:660:4406:1a0:702:1::a",
-      "kavlan-12": "2001:660:4406:2a0:702:1::a",
-      "kavlan-13": "2001:660:4406:4a0:702:1::a",
-      "kavlan-14": "2001:660:4406:5a0:702:1::a",
-      "kavlan-16": "2001:660:4406:7a0:702:1::a",
-      "kavlan-18": "2001:660:4406:8a0:702:1::a",
-      "kavlan-2": "2001:660:4406:781:2:1::a",
-      "kavlan-20": "2001:660:4406:3a0:702:1::a",
-      "kavlan-21": "2001:660:4406:6a0:702:1::a",
-      "kavlan-3": "2001:660:4406:782:2:1::a",
-      "kavlan-4": "2001:660:4406:790:2:1::a",
-      "kavlan-5": "2001:660:4406:791:2:1::a",
-      "kavlan-6": "2001:660:4406:792:2:1::a",
-      "kavlan-7": "2001:660:4406:793:2:1::a",
-      "kavlan-8": "2001:660:4406:794:2:1::a",
-      "kavlan-9": "2001:660:4406:795:2:1::a"
+      "kavlan-1": "2001:660:4406:780:2:1:0:a",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:a",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:a",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:a",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:a",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:a",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:a",
+      "kavlan-2": "2001:660:4406:781:2:1:0:a",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:a",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:a",
+      "kavlan-3": "2001:660:4406:782:2:1:0:a",
+      "kavlan-4": "2001:660:4406:790:2:1:0:a",
+      "kavlan-5": "2001:660:4406:791:2:1:0:a",
+      "kavlan-6": "2001:660:4406:792:2:1:0:a",
+      "kavlan-7": "2001:660:4406:793:2:1:0:a",
+      "kavlan-8": "2001:660:4406:794:2:1:0:a",
+      "kavlan-9": "2001:660:4406:795:2:1:0:a"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.10",
-      "ip6": "2001:660:4406:700:2:0::a",
+      "ip6": "2001:660:4406:700:2::a",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:48",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.110",
-      "ip6": "2001:660:4406:700:2:1::a",
+      "ip6": "2001:660:4406:700:2:1:0:a",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:4a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-11.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-11.json
index 6016ae8f5de77a2ff44c658e5d2bf942f9023a6c..9cad0b7b8759b72d3dcb580aab7d998e81f0f034 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-11.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-11.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::b",
-      "kavlan-11": "2001:660:4406:1a0:702:0::b",
-      "kavlan-12": "2001:660:4406:2a0:702:0::b",
-      "kavlan-13": "2001:660:4406:4a0:702:0::b",
-      "kavlan-14": "2001:660:4406:5a0:702:0::b",
-      "kavlan-16": "2001:660:4406:7a0:702:0::b",
-      "kavlan-18": "2001:660:4406:8a0:702:0::b",
-      "kavlan-2": "2001:660:4406:781:2:0::b",
-      "kavlan-20": "2001:660:4406:3a0:702:0::b",
-      "kavlan-21": "2001:660:4406:6a0:702:0::b",
-      "kavlan-3": "2001:660:4406:782:2:0::b",
-      "kavlan-4": "2001:660:4406:790:2:0::b",
-      "kavlan-5": "2001:660:4406:791:2:0::b",
-      "kavlan-6": "2001:660:4406:792:2:0::b",
-      "kavlan-7": "2001:660:4406:793:2:0::b",
-      "kavlan-8": "2001:660:4406:794:2:0::b",
-      "kavlan-9": "2001:660:4406:795:2:0::b"
+      "kavlan-1": "2001:660:4406:780:2::b",
+      "kavlan-11": "2001:660:4406:1a0:702::b",
+      "kavlan-12": "2001:660:4406:2a0:702::b",
+      "kavlan-13": "2001:660:4406:4a0:702::b",
+      "kavlan-14": "2001:660:4406:5a0:702::b",
+      "kavlan-16": "2001:660:4406:7a0:702::b",
+      "kavlan-18": "2001:660:4406:8a0:702::b",
+      "kavlan-2": "2001:660:4406:781:2::b",
+      "kavlan-20": "2001:660:4406:3a0:702::b",
+      "kavlan-21": "2001:660:4406:6a0:702::b",
+      "kavlan-3": "2001:660:4406:782:2::b",
+      "kavlan-4": "2001:660:4406:790:2::b",
+      "kavlan-5": "2001:660:4406:791:2::b",
+      "kavlan-6": "2001:660:4406:792:2::b",
+      "kavlan-7": "2001:660:4406:793:2::b",
+      "kavlan-8": "2001:660:4406:794:2::b",
+      "kavlan-9": "2001:660:4406:795:2::b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::b",
-      "kavlan-11": "2001:660:4406:1a0:702:1::b",
-      "kavlan-12": "2001:660:4406:2a0:702:1::b",
-      "kavlan-13": "2001:660:4406:4a0:702:1::b",
-      "kavlan-14": "2001:660:4406:5a0:702:1::b",
-      "kavlan-16": "2001:660:4406:7a0:702:1::b",
-      "kavlan-18": "2001:660:4406:8a0:702:1::b",
-      "kavlan-2": "2001:660:4406:781:2:1::b",
-      "kavlan-20": "2001:660:4406:3a0:702:1::b",
-      "kavlan-21": "2001:660:4406:6a0:702:1::b",
-      "kavlan-3": "2001:660:4406:782:2:1::b",
-      "kavlan-4": "2001:660:4406:790:2:1::b",
-      "kavlan-5": "2001:660:4406:791:2:1::b",
-      "kavlan-6": "2001:660:4406:792:2:1::b",
-      "kavlan-7": "2001:660:4406:793:2:1::b",
-      "kavlan-8": "2001:660:4406:794:2:1::b",
-      "kavlan-9": "2001:660:4406:795:2:1::b"
+      "kavlan-1": "2001:660:4406:780:2:1:0:b",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:b",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:b",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:b",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:b",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:b",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:b",
+      "kavlan-2": "2001:660:4406:781:2:1:0:b",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:b",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:b",
+      "kavlan-3": "2001:660:4406:782:2:1:0:b",
+      "kavlan-4": "2001:660:4406:790:2:1:0:b",
+      "kavlan-5": "2001:660:4406:791:2:1:0:b",
+      "kavlan-6": "2001:660:4406:792:2:1:0:b",
+      "kavlan-7": "2001:660:4406:793:2:1:0:b",
+      "kavlan-8": "2001:660:4406:794:2:1:0:b",
+      "kavlan-9": "2001:660:4406:795:2:1:0:b"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.11",
-      "ip6": "2001:660:4406:700:2:0::b",
+      "ip6": "2001:660:4406:700:2::b",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:10",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.111",
-      "ip6": "2001:660:4406:700:2:1::b",
+      "ip6": "2001:660:4406:700:2:1:0:b",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:12",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-12.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-12.json
index 326a1d42547d123354ea772ff3deac1070574a4b..3a40bb0e21a724114b5967669bffd92c6d332088 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-12.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-12.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::c",
-      "kavlan-11": "2001:660:4406:1a0:702:0::c",
-      "kavlan-12": "2001:660:4406:2a0:702:0::c",
-      "kavlan-13": "2001:660:4406:4a0:702:0::c",
-      "kavlan-14": "2001:660:4406:5a0:702:0::c",
-      "kavlan-16": "2001:660:4406:7a0:702:0::c",
-      "kavlan-18": "2001:660:4406:8a0:702:0::c",
-      "kavlan-2": "2001:660:4406:781:2:0::c",
-      "kavlan-20": "2001:660:4406:3a0:702:0::c",
-      "kavlan-21": "2001:660:4406:6a0:702:0::c",
-      "kavlan-3": "2001:660:4406:782:2:0::c",
-      "kavlan-4": "2001:660:4406:790:2:0::c",
-      "kavlan-5": "2001:660:4406:791:2:0::c",
-      "kavlan-6": "2001:660:4406:792:2:0::c",
-      "kavlan-7": "2001:660:4406:793:2:0::c",
-      "kavlan-8": "2001:660:4406:794:2:0::c",
-      "kavlan-9": "2001:660:4406:795:2:0::c"
+      "kavlan-1": "2001:660:4406:780:2::c",
+      "kavlan-11": "2001:660:4406:1a0:702::c",
+      "kavlan-12": "2001:660:4406:2a0:702::c",
+      "kavlan-13": "2001:660:4406:4a0:702::c",
+      "kavlan-14": "2001:660:4406:5a0:702::c",
+      "kavlan-16": "2001:660:4406:7a0:702::c",
+      "kavlan-18": "2001:660:4406:8a0:702::c",
+      "kavlan-2": "2001:660:4406:781:2::c",
+      "kavlan-20": "2001:660:4406:3a0:702::c",
+      "kavlan-21": "2001:660:4406:6a0:702::c",
+      "kavlan-3": "2001:660:4406:782:2::c",
+      "kavlan-4": "2001:660:4406:790:2::c",
+      "kavlan-5": "2001:660:4406:791:2::c",
+      "kavlan-6": "2001:660:4406:792:2::c",
+      "kavlan-7": "2001:660:4406:793:2::c",
+      "kavlan-8": "2001:660:4406:794:2::c",
+      "kavlan-9": "2001:660:4406:795:2::c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::c",
-      "kavlan-11": "2001:660:4406:1a0:702:1::c",
-      "kavlan-12": "2001:660:4406:2a0:702:1::c",
-      "kavlan-13": "2001:660:4406:4a0:702:1::c",
-      "kavlan-14": "2001:660:4406:5a0:702:1::c",
-      "kavlan-16": "2001:660:4406:7a0:702:1::c",
-      "kavlan-18": "2001:660:4406:8a0:702:1::c",
-      "kavlan-2": "2001:660:4406:781:2:1::c",
-      "kavlan-20": "2001:660:4406:3a0:702:1::c",
-      "kavlan-21": "2001:660:4406:6a0:702:1::c",
-      "kavlan-3": "2001:660:4406:782:2:1::c",
-      "kavlan-4": "2001:660:4406:790:2:1::c",
-      "kavlan-5": "2001:660:4406:791:2:1::c",
-      "kavlan-6": "2001:660:4406:792:2:1::c",
-      "kavlan-7": "2001:660:4406:793:2:1::c",
-      "kavlan-8": "2001:660:4406:794:2:1::c",
-      "kavlan-9": "2001:660:4406:795:2:1::c"
+      "kavlan-1": "2001:660:4406:780:2:1:0:c",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:c",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:c",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:c",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:c",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:c",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:c",
+      "kavlan-2": "2001:660:4406:781:2:1:0:c",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:c",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:c",
+      "kavlan-3": "2001:660:4406:782:2:1:0:c",
+      "kavlan-4": "2001:660:4406:790:2:1:0:c",
+      "kavlan-5": "2001:660:4406:791:2:1:0:c",
+      "kavlan-6": "2001:660:4406:792:2:1:0:c",
+      "kavlan-7": "2001:660:4406:793:2:1:0:c",
+      "kavlan-8": "2001:660:4406:794:2:1:0:c",
+      "kavlan-9": "2001:660:4406:795:2:1:0:c"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.12",
-      "ip6": "2001:660:4406:700:2:0::c",
+      "ip6": "2001:660:4406:700:2::c",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f1:48",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.112",
-      "ip6": "2001:660:4406:700:2:1::c",
+      "ip6": "2001:660:4406:700:2:1:0:c",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f1:4a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-13.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-13.json
index ecc30bd2f10c989c716c6a6e69fdeb47de4b1ef7..b98862c7f2b909aa128453f3b6bb3a293cb44946 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-13.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-13.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::d",
-      "kavlan-11": "2001:660:4406:1a0:702:0::d",
-      "kavlan-12": "2001:660:4406:2a0:702:0::d",
-      "kavlan-13": "2001:660:4406:4a0:702:0::d",
-      "kavlan-14": "2001:660:4406:5a0:702:0::d",
-      "kavlan-16": "2001:660:4406:7a0:702:0::d",
-      "kavlan-18": "2001:660:4406:8a0:702:0::d",
-      "kavlan-2": "2001:660:4406:781:2:0::d",
-      "kavlan-20": "2001:660:4406:3a0:702:0::d",
-      "kavlan-21": "2001:660:4406:6a0:702:0::d",
-      "kavlan-3": "2001:660:4406:782:2:0::d",
-      "kavlan-4": "2001:660:4406:790:2:0::d",
-      "kavlan-5": "2001:660:4406:791:2:0::d",
-      "kavlan-6": "2001:660:4406:792:2:0::d",
-      "kavlan-7": "2001:660:4406:793:2:0::d",
-      "kavlan-8": "2001:660:4406:794:2:0::d",
-      "kavlan-9": "2001:660:4406:795:2:0::d"
+      "kavlan-1": "2001:660:4406:780:2::d",
+      "kavlan-11": "2001:660:4406:1a0:702::d",
+      "kavlan-12": "2001:660:4406:2a0:702::d",
+      "kavlan-13": "2001:660:4406:4a0:702::d",
+      "kavlan-14": "2001:660:4406:5a0:702::d",
+      "kavlan-16": "2001:660:4406:7a0:702::d",
+      "kavlan-18": "2001:660:4406:8a0:702::d",
+      "kavlan-2": "2001:660:4406:781:2::d",
+      "kavlan-20": "2001:660:4406:3a0:702::d",
+      "kavlan-21": "2001:660:4406:6a0:702::d",
+      "kavlan-3": "2001:660:4406:782:2::d",
+      "kavlan-4": "2001:660:4406:790:2::d",
+      "kavlan-5": "2001:660:4406:791:2::d",
+      "kavlan-6": "2001:660:4406:792:2::d",
+      "kavlan-7": "2001:660:4406:793:2::d",
+      "kavlan-8": "2001:660:4406:794:2::d",
+      "kavlan-9": "2001:660:4406:795:2::d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::d",
-      "kavlan-11": "2001:660:4406:1a0:702:1::d",
-      "kavlan-12": "2001:660:4406:2a0:702:1::d",
-      "kavlan-13": "2001:660:4406:4a0:702:1::d",
-      "kavlan-14": "2001:660:4406:5a0:702:1::d",
-      "kavlan-16": "2001:660:4406:7a0:702:1::d",
-      "kavlan-18": "2001:660:4406:8a0:702:1::d",
-      "kavlan-2": "2001:660:4406:781:2:1::d",
-      "kavlan-20": "2001:660:4406:3a0:702:1::d",
-      "kavlan-21": "2001:660:4406:6a0:702:1::d",
-      "kavlan-3": "2001:660:4406:782:2:1::d",
-      "kavlan-4": "2001:660:4406:790:2:1::d",
-      "kavlan-5": "2001:660:4406:791:2:1::d",
-      "kavlan-6": "2001:660:4406:792:2:1::d",
-      "kavlan-7": "2001:660:4406:793:2:1::d",
-      "kavlan-8": "2001:660:4406:794:2:1::d",
-      "kavlan-9": "2001:660:4406:795:2:1::d"
+      "kavlan-1": "2001:660:4406:780:2:1:0:d",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:d",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:d",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:d",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:d",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:d",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:d",
+      "kavlan-2": "2001:660:4406:781:2:1:0:d",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:d",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:d",
+      "kavlan-3": "2001:660:4406:782:2:1:0:d",
+      "kavlan-4": "2001:660:4406:790:2:1:0:d",
+      "kavlan-5": "2001:660:4406:791:2:1:0:d",
+      "kavlan-6": "2001:660:4406:792:2:1:0:d",
+      "kavlan-7": "2001:660:4406:793:2:1:0:d",
+      "kavlan-8": "2001:660:4406:794:2:1:0:d",
+      "kavlan-9": "2001:660:4406:795:2:1:0:d"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.13",
-      "ip6": "2001:660:4406:700:2:0::d",
+      "ip6": "2001:660:4406:700:2::d",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f5:f8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.113",
-      "ip6": "2001:660:4406:700:2:1::d",
+      "ip6": "2001:660:4406:700:2:1:0:d",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f5:fa",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-14.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-14.json
index cf81396d97e9f05c7e5f49d7657b5793e1f8ff9a..52f347cf7484c24caf866abd21eca6610d0fd8cc 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-14.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-14.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::e",
-      "kavlan-11": "2001:660:4406:1a0:702:0::e",
-      "kavlan-12": "2001:660:4406:2a0:702:0::e",
-      "kavlan-13": "2001:660:4406:4a0:702:0::e",
-      "kavlan-14": "2001:660:4406:5a0:702:0::e",
-      "kavlan-16": "2001:660:4406:7a0:702:0::e",
-      "kavlan-18": "2001:660:4406:8a0:702:0::e",
-      "kavlan-2": "2001:660:4406:781:2:0::e",
-      "kavlan-20": "2001:660:4406:3a0:702:0::e",
-      "kavlan-21": "2001:660:4406:6a0:702:0::e",
-      "kavlan-3": "2001:660:4406:782:2:0::e",
-      "kavlan-4": "2001:660:4406:790:2:0::e",
-      "kavlan-5": "2001:660:4406:791:2:0::e",
-      "kavlan-6": "2001:660:4406:792:2:0::e",
-      "kavlan-7": "2001:660:4406:793:2:0::e",
-      "kavlan-8": "2001:660:4406:794:2:0::e",
-      "kavlan-9": "2001:660:4406:795:2:0::e"
+      "kavlan-1": "2001:660:4406:780:2::e",
+      "kavlan-11": "2001:660:4406:1a0:702::e",
+      "kavlan-12": "2001:660:4406:2a0:702::e",
+      "kavlan-13": "2001:660:4406:4a0:702::e",
+      "kavlan-14": "2001:660:4406:5a0:702::e",
+      "kavlan-16": "2001:660:4406:7a0:702::e",
+      "kavlan-18": "2001:660:4406:8a0:702::e",
+      "kavlan-2": "2001:660:4406:781:2::e",
+      "kavlan-20": "2001:660:4406:3a0:702::e",
+      "kavlan-21": "2001:660:4406:6a0:702::e",
+      "kavlan-3": "2001:660:4406:782:2::e",
+      "kavlan-4": "2001:660:4406:790:2::e",
+      "kavlan-5": "2001:660:4406:791:2::e",
+      "kavlan-6": "2001:660:4406:792:2::e",
+      "kavlan-7": "2001:660:4406:793:2::e",
+      "kavlan-8": "2001:660:4406:794:2::e",
+      "kavlan-9": "2001:660:4406:795:2::e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::e",
-      "kavlan-11": "2001:660:4406:1a0:702:1::e",
-      "kavlan-12": "2001:660:4406:2a0:702:1::e",
-      "kavlan-13": "2001:660:4406:4a0:702:1::e",
-      "kavlan-14": "2001:660:4406:5a0:702:1::e",
-      "kavlan-16": "2001:660:4406:7a0:702:1::e",
-      "kavlan-18": "2001:660:4406:8a0:702:1::e",
-      "kavlan-2": "2001:660:4406:781:2:1::e",
-      "kavlan-20": "2001:660:4406:3a0:702:1::e",
-      "kavlan-21": "2001:660:4406:6a0:702:1::e",
-      "kavlan-3": "2001:660:4406:782:2:1::e",
-      "kavlan-4": "2001:660:4406:790:2:1::e",
-      "kavlan-5": "2001:660:4406:791:2:1::e",
-      "kavlan-6": "2001:660:4406:792:2:1::e",
-      "kavlan-7": "2001:660:4406:793:2:1::e",
-      "kavlan-8": "2001:660:4406:794:2:1::e",
-      "kavlan-9": "2001:660:4406:795:2:1::e"
+      "kavlan-1": "2001:660:4406:780:2:1:0:e",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:e",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:e",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:e",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:e",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:e",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:e",
+      "kavlan-2": "2001:660:4406:781:2:1:0:e",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:e",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:e",
+      "kavlan-3": "2001:660:4406:782:2:1:0:e",
+      "kavlan-4": "2001:660:4406:790:2:1:0:e",
+      "kavlan-5": "2001:660:4406:791:2:1:0:e",
+      "kavlan-6": "2001:660:4406:792:2:1:0:e",
+      "kavlan-7": "2001:660:4406:793:2:1:0:e",
+      "kavlan-8": "2001:660:4406:794:2:1:0:e",
+      "kavlan-9": "2001:660:4406:795:2:1:0:e"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.14",
-      "ip6": "2001:660:4406:700:2:0::e",
+      "ip6": "2001:660:4406:700:2::e",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:05:90",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.114",
-      "ip6": "2001:660:4406:700:2:1::e",
+      "ip6": "2001:660:4406:700:2:1:0:e",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:05:92",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-15.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-15.json
index 9d956db7ce56ee9c7d94f6b2ad3b65a896dd0981..5a4621770393b9b55873077f528a1dbc34ee3cf9 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-15.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-15.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::f",
-      "kavlan-11": "2001:660:4406:1a0:702:0::f",
-      "kavlan-12": "2001:660:4406:2a0:702:0::f",
-      "kavlan-13": "2001:660:4406:4a0:702:0::f",
-      "kavlan-14": "2001:660:4406:5a0:702:0::f",
-      "kavlan-16": "2001:660:4406:7a0:702:0::f",
-      "kavlan-18": "2001:660:4406:8a0:702:0::f",
-      "kavlan-2": "2001:660:4406:781:2:0::f",
-      "kavlan-20": "2001:660:4406:3a0:702:0::f",
-      "kavlan-21": "2001:660:4406:6a0:702:0::f",
-      "kavlan-3": "2001:660:4406:782:2:0::f",
-      "kavlan-4": "2001:660:4406:790:2:0::f",
-      "kavlan-5": "2001:660:4406:791:2:0::f",
-      "kavlan-6": "2001:660:4406:792:2:0::f",
-      "kavlan-7": "2001:660:4406:793:2:0::f",
-      "kavlan-8": "2001:660:4406:794:2:0::f",
-      "kavlan-9": "2001:660:4406:795:2:0::f"
+      "kavlan-1": "2001:660:4406:780:2::f",
+      "kavlan-11": "2001:660:4406:1a0:702::f",
+      "kavlan-12": "2001:660:4406:2a0:702::f",
+      "kavlan-13": "2001:660:4406:4a0:702::f",
+      "kavlan-14": "2001:660:4406:5a0:702::f",
+      "kavlan-16": "2001:660:4406:7a0:702::f",
+      "kavlan-18": "2001:660:4406:8a0:702::f",
+      "kavlan-2": "2001:660:4406:781:2::f",
+      "kavlan-20": "2001:660:4406:3a0:702::f",
+      "kavlan-21": "2001:660:4406:6a0:702::f",
+      "kavlan-3": "2001:660:4406:782:2::f",
+      "kavlan-4": "2001:660:4406:790:2::f",
+      "kavlan-5": "2001:660:4406:791:2::f",
+      "kavlan-6": "2001:660:4406:792:2::f",
+      "kavlan-7": "2001:660:4406:793:2::f",
+      "kavlan-8": "2001:660:4406:794:2::f",
+      "kavlan-9": "2001:660:4406:795:2::f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::f",
-      "kavlan-11": "2001:660:4406:1a0:702:1::f",
-      "kavlan-12": "2001:660:4406:2a0:702:1::f",
-      "kavlan-13": "2001:660:4406:4a0:702:1::f",
-      "kavlan-14": "2001:660:4406:5a0:702:1::f",
-      "kavlan-16": "2001:660:4406:7a0:702:1::f",
-      "kavlan-18": "2001:660:4406:8a0:702:1::f",
-      "kavlan-2": "2001:660:4406:781:2:1::f",
-      "kavlan-20": "2001:660:4406:3a0:702:1::f",
-      "kavlan-21": "2001:660:4406:6a0:702:1::f",
-      "kavlan-3": "2001:660:4406:782:2:1::f",
-      "kavlan-4": "2001:660:4406:790:2:1::f",
-      "kavlan-5": "2001:660:4406:791:2:1::f",
-      "kavlan-6": "2001:660:4406:792:2:1::f",
-      "kavlan-7": "2001:660:4406:793:2:1::f",
-      "kavlan-8": "2001:660:4406:794:2:1::f",
-      "kavlan-9": "2001:660:4406:795:2:1::f"
+      "kavlan-1": "2001:660:4406:780:2:1:0:f",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:f",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:f",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:f",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:f",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:f",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:f",
+      "kavlan-2": "2001:660:4406:781:2:1:0:f",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:f",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:f",
+      "kavlan-3": "2001:660:4406:782:2:1:0:f",
+      "kavlan-4": "2001:660:4406:790:2:1:0:f",
+      "kavlan-5": "2001:660:4406:791:2:1:0:f",
+      "kavlan-6": "2001:660:4406:792:2:1:0:f",
+      "kavlan-7": "2001:660:4406:793:2:1:0:f",
+      "kavlan-8": "2001:660:4406:794:2:1:0:f",
+      "kavlan-9": "2001:660:4406:795:2:1:0:f"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.15",
-      "ip6": "2001:660:4406:700:2:0::f",
+      "ip6": "2001:660:4406:700:2::f",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:25:90",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.115",
-      "ip6": "2001:660:4406:700:2:1::f",
+      "ip6": "2001:660:4406:700:2:1:0:f",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:25:92",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-16.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-16.json
index 77f0aba1ec981820b920acfa341270c7fecb25d7..42e41abe42d4d67db99367f701a289b4b13fa294 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-16.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-16.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::10",
-      "kavlan-11": "2001:660:4406:1a0:702:0::10",
-      "kavlan-12": "2001:660:4406:2a0:702:0::10",
-      "kavlan-13": "2001:660:4406:4a0:702:0::10",
-      "kavlan-14": "2001:660:4406:5a0:702:0::10",
-      "kavlan-16": "2001:660:4406:7a0:702:0::10",
-      "kavlan-18": "2001:660:4406:8a0:702:0::10",
-      "kavlan-2": "2001:660:4406:781:2:0::10",
-      "kavlan-20": "2001:660:4406:3a0:702:0::10",
-      "kavlan-21": "2001:660:4406:6a0:702:0::10",
-      "kavlan-3": "2001:660:4406:782:2:0::10",
-      "kavlan-4": "2001:660:4406:790:2:0::10",
-      "kavlan-5": "2001:660:4406:791:2:0::10",
-      "kavlan-6": "2001:660:4406:792:2:0::10",
-      "kavlan-7": "2001:660:4406:793:2:0::10",
-      "kavlan-8": "2001:660:4406:794:2:0::10",
-      "kavlan-9": "2001:660:4406:795:2:0::10"
+      "kavlan-1": "2001:660:4406:780:2::10",
+      "kavlan-11": "2001:660:4406:1a0:702::10",
+      "kavlan-12": "2001:660:4406:2a0:702::10",
+      "kavlan-13": "2001:660:4406:4a0:702::10",
+      "kavlan-14": "2001:660:4406:5a0:702::10",
+      "kavlan-16": "2001:660:4406:7a0:702::10",
+      "kavlan-18": "2001:660:4406:8a0:702::10",
+      "kavlan-2": "2001:660:4406:781:2::10",
+      "kavlan-20": "2001:660:4406:3a0:702::10",
+      "kavlan-21": "2001:660:4406:6a0:702::10",
+      "kavlan-3": "2001:660:4406:782:2::10",
+      "kavlan-4": "2001:660:4406:790:2::10",
+      "kavlan-5": "2001:660:4406:791:2::10",
+      "kavlan-6": "2001:660:4406:792:2::10",
+      "kavlan-7": "2001:660:4406:793:2::10",
+      "kavlan-8": "2001:660:4406:794:2::10",
+      "kavlan-9": "2001:660:4406:795:2::10"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::10",
-      "kavlan-11": "2001:660:4406:1a0:702:1::10",
-      "kavlan-12": "2001:660:4406:2a0:702:1::10",
-      "kavlan-13": "2001:660:4406:4a0:702:1::10",
-      "kavlan-14": "2001:660:4406:5a0:702:1::10",
-      "kavlan-16": "2001:660:4406:7a0:702:1::10",
-      "kavlan-18": "2001:660:4406:8a0:702:1::10",
-      "kavlan-2": "2001:660:4406:781:2:1::10",
-      "kavlan-20": "2001:660:4406:3a0:702:1::10",
-      "kavlan-21": "2001:660:4406:6a0:702:1::10",
-      "kavlan-3": "2001:660:4406:782:2:1::10",
-      "kavlan-4": "2001:660:4406:790:2:1::10",
-      "kavlan-5": "2001:660:4406:791:2:1::10",
-      "kavlan-6": "2001:660:4406:792:2:1::10",
-      "kavlan-7": "2001:660:4406:793:2:1::10",
-      "kavlan-8": "2001:660:4406:794:2:1::10",
-      "kavlan-9": "2001:660:4406:795:2:1::10"
+      "kavlan-1": "2001:660:4406:780:2:1:0:10",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:10",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:10",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:10",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:10",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:10",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:10",
+      "kavlan-2": "2001:660:4406:781:2:1:0:10",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:10",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:10",
+      "kavlan-3": "2001:660:4406:782:2:1:0:10",
+      "kavlan-4": "2001:660:4406:790:2:1:0:10",
+      "kavlan-5": "2001:660:4406:791:2:1:0:10",
+      "kavlan-6": "2001:660:4406:792:2:1:0:10",
+      "kavlan-7": "2001:660:4406:793:2:1:0:10",
+      "kavlan-8": "2001:660:4406:794:2:1:0:10",
+      "kavlan-9": "2001:660:4406:795:2:1:0:10"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.16",
-      "ip6": "2001:660:4406:700:2:0::10",
+      "ip6": "2001:660:4406:700:2::10",
       "kavlan": true,
       "mac": "ec:f4:bb:d6:10:38",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.116",
-      "ip6": "2001:660:4406:700:2:1::10",
+      "ip6": "2001:660:4406:700:2:1:0:10",
       "kavlan": true,
       "mac": "ec:f4:bb:d6:10:3a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-17.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-17.json
index 222274db3644e1fbe58194fc1d40a1fca8f9bd42..c3114a0340cebdce1ff20a372333832344317cfe 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-17.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-17.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::11",
-      "kavlan-11": "2001:660:4406:1a0:702:0::11",
-      "kavlan-12": "2001:660:4406:2a0:702:0::11",
-      "kavlan-13": "2001:660:4406:4a0:702:0::11",
-      "kavlan-14": "2001:660:4406:5a0:702:0::11",
-      "kavlan-16": "2001:660:4406:7a0:702:0::11",
-      "kavlan-18": "2001:660:4406:8a0:702:0::11",
-      "kavlan-2": "2001:660:4406:781:2:0::11",
-      "kavlan-20": "2001:660:4406:3a0:702:0::11",
-      "kavlan-21": "2001:660:4406:6a0:702:0::11",
-      "kavlan-3": "2001:660:4406:782:2:0::11",
-      "kavlan-4": "2001:660:4406:790:2:0::11",
-      "kavlan-5": "2001:660:4406:791:2:0::11",
-      "kavlan-6": "2001:660:4406:792:2:0::11",
-      "kavlan-7": "2001:660:4406:793:2:0::11",
-      "kavlan-8": "2001:660:4406:794:2:0::11",
-      "kavlan-9": "2001:660:4406:795:2:0::11"
+      "kavlan-1": "2001:660:4406:780:2::11",
+      "kavlan-11": "2001:660:4406:1a0:702::11",
+      "kavlan-12": "2001:660:4406:2a0:702::11",
+      "kavlan-13": "2001:660:4406:4a0:702::11",
+      "kavlan-14": "2001:660:4406:5a0:702::11",
+      "kavlan-16": "2001:660:4406:7a0:702::11",
+      "kavlan-18": "2001:660:4406:8a0:702::11",
+      "kavlan-2": "2001:660:4406:781:2::11",
+      "kavlan-20": "2001:660:4406:3a0:702::11",
+      "kavlan-21": "2001:660:4406:6a0:702::11",
+      "kavlan-3": "2001:660:4406:782:2::11",
+      "kavlan-4": "2001:660:4406:790:2::11",
+      "kavlan-5": "2001:660:4406:791:2::11",
+      "kavlan-6": "2001:660:4406:792:2::11",
+      "kavlan-7": "2001:660:4406:793:2::11",
+      "kavlan-8": "2001:660:4406:794:2::11",
+      "kavlan-9": "2001:660:4406:795:2::11"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::11",
-      "kavlan-11": "2001:660:4406:1a0:702:1::11",
-      "kavlan-12": "2001:660:4406:2a0:702:1::11",
-      "kavlan-13": "2001:660:4406:4a0:702:1::11",
-      "kavlan-14": "2001:660:4406:5a0:702:1::11",
-      "kavlan-16": "2001:660:4406:7a0:702:1::11",
-      "kavlan-18": "2001:660:4406:8a0:702:1::11",
-      "kavlan-2": "2001:660:4406:781:2:1::11",
-      "kavlan-20": "2001:660:4406:3a0:702:1::11",
-      "kavlan-21": "2001:660:4406:6a0:702:1::11",
-      "kavlan-3": "2001:660:4406:782:2:1::11",
-      "kavlan-4": "2001:660:4406:790:2:1::11",
-      "kavlan-5": "2001:660:4406:791:2:1::11",
-      "kavlan-6": "2001:660:4406:792:2:1::11",
-      "kavlan-7": "2001:660:4406:793:2:1::11",
-      "kavlan-8": "2001:660:4406:794:2:1::11",
-      "kavlan-9": "2001:660:4406:795:2:1::11"
+      "kavlan-1": "2001:660:4406:780:2:1:0:11",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:11",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:11",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:11",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:11",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:11",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:11",
+      "kavlan-2": "2001:660:4406:781:2:1:0:11",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:11",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:11",
+      "kavlan-3": "2001:660:4406:782:2:1:0:11",
+      "kavlan-4": "2001:660:4406:790:2:1:0:11",
+      "kavlan-5": "2001:660:4406:791:2:1:0:11",
+      "kavlan-6": "2001:660:4406:792:2:1:0:11",
+      "kavlan-7": "2001:660:4406:793:2:1:0:11",
+      "kavlan-8": "2001:660:4406:794:2:1:0:11",
+      "kavlan-9": "2001:660:4406:795:2:1:0:11"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.17",
-      "ip6": "2001:660:4406:700:2:0::11",
+      "ip6": "2001:660:4406:700:2::11",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:b8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.117",
-      "ip6": "2001:660:4406:700:2:1::11",
+      "ip6": "2001:660:4406:700:2:1:0:11",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:ba",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-18.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-18.json
index 631cdb172a50c76352b391353023fce7a8563a0d..15123e3813f2584b92e16516fcc0668654c1f5ac 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-18.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-18.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::12",
-      "kavlan-11": "2001:660:4406:1a0:702:0::12",
-      "kavlan-12": "2001:660:4406:2a0:702:0::12",
-      "kavlan-13": "2001:660:4406:4a0:702:0::12",
-      "kavlan-14": "2001:660:4406:5a0:702:0::12",
-      "kavlan-16": "2001:660:4406:7a0:702:0::12",
-      "kavlan-18": "2001:660:4406:8a0:702:0::12",
-      "kavlan-2": "2001:660:4406:781:2:0::12",
-      "kavlan-20": "2001:660:4406:3a0:702:0::12",
-      "kavlan-21": "2001:660:4406:6a0:702:0::12",
-      "kavlan-3": "2001:660:4406:782:2:0::12",
-      "kavlan-4": "2001:660:4406:790:2:0::12",
-      "kavlan-5": "2001:660:4406:791:2:0::12",
-      "kavlan-6": "2001:660:4406:792:2:0::12",
-      "kavlan-7": "2001:660:4406:793:2:0::12",
-      "kavlan-8": "2001:660:4406:794:2:0::12",
-      "kavlan-9": "2001:660:4406:795:2:0::12"
+      "kavlan-1": "2001:660:4406:780:2::12",
+      "kavlan-11": "2001:660:4406:1a0:702::12",
+      "kavlan-12": "2001:660:4406:2a0:702::12",
+      "kavlan-13": "2001:660:4406:4a0:702::12",
+      "kavlan-14": "2001:660:4406:5a0:702::12",
+      "kavlan-16": "2001:660:4406:7a0:702::12",
+      "kavlan-18": "2001:660:4406:8a0:702::12",
+      "kavlan-2": "2001:660:4406:781:2::12",
+      "kavlan-20": "2001:660:4406:3a0:702::12",
+      "kavlan-21": "2001:660:4406:6a0:702::12",
+      "kavlan-3": "2001:660:4406:782:2::12",
+      "kavlan-4": "2001:660:4406:790:2::12",
+      "kavlan-5": "2001:660:4406:791:2::12",
+      "kavlan-6": "2001:660:4406:792:2::12",
+      "kavlan-7": "2001:660:4406:793:2::12",
+      "kavlan-8": "2001:660:4406:794:2::12",
+      "kavlan-9": "2001:660:4406:795:2::12"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::12",
-      "kavlan-11": "2001:660:4406:1a0:702:1::12",
-      "kavlan-12": "2001:660:4406:2a0:702:1::12",
-      "kavlan-13": "2001:660:4406:4a0:702:1::12",
-      "kavlan-14": "2001:660:4406:5a0:702:1::12",
-      "kavlan-16": "2001:660:4406:7a0:702:1::12",
-      "kavlan-18": "2001:660:4406:8a0:702:1::12",
-      "kavlan-2": "2001:660:4406:781:2:1::12",
-      "kavlan-20": "2001:660:4406:3a0:702:1::12",
-      "kavlan-21": "2001:660:4406:6a0:702:1::12",
-      "kavlan-3": "2001:660:4406:782:2:1::12",
-      "kavlan-4": "2001:660:4406:790:2:1::12",
-      "kavlan-5": "2001:660:4406:791:2:1::12",
-      "kavlan-6": "2001:660:4406:792:2:1::12",
-      "kavlan-7": "2001:660:4406:793:2:1::12",
-      "kavlan-8": "2001:660:4406:794:2:1::12",
-      "kavlan-9": "2001:660:4406:795:2:1::12"
+      "kavlan-1": "2001:660:4406:780:2:1:0:12",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:12",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:12",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:12",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:12",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:12",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:12",
+      "kavlan-2": "2001:660:4406:781:2:1:0:12",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:12",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:12",
+      "kavlan-3": "2001:660:4406:782:2:1:0:12",
+      "kavlan-4": "2001:660:4406:790:2:1:0:12",
+      "kavlan-5": "2001:660:4406:791:2:1:0:12",
+      "kavlan-6": "2001:660:4406:792:2:1:0:12",
+      "kavlan-7": "2001:660:4406:793:2:1:0:12",
+      "kavlan-8": "2001:660:4406:794:2:1:0:12",
+      "kavlan-9": "2001:660:4406:795:2:1:0:12"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.18",
-      "ip6": "2001:660:4406:700:2:0::12",
+      "ip6": "2001:660:4406:700:2::12",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:11:c8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.118",
-      "ip6": "2001:660:4406:700:2:1::12",
+      "ip6": "2001:660:4406:700:2:1:0:12",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:11:ca",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-19.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-19.json
index a2c3dbd0208790f621b56bb62998c453874bcd3a..617672c226e55a329a0d54992ead57604917e920 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-19.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-19.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::13",
-      "kavlan-11": "2001:660:4406:1a0:702:0::13",
-      "kavlan-12": "2001:660:4406:2a0:702:0::13",
-      "kavlan-13": "2001:660:4406:4a0:702:0::13",
-      "kavlan-14": "2001:660:4406:5a0:702:0::13",
-      "kavlan-16": "2001:660:4406:7a0:702:0::13",
-      "kavlan-18": "2001:660:4406:8a0:702:0::13",
-      "kavlan-2": "2001:660:4406:781:2:0::13",
-      "kavlan-20": "2001:660:4406:3a0:702:0::13",
-      "kavlan-21": "2001:660:4406:6a0:702:0::13",
-      "kavlan-3": "2001:660:4406:782:2:0::13",
-      "kavlan-4": "2001:660:4406:790:2:0::13",
-      "kavlan-5": "2001:660:4406:791:2:0::13",
-      "kavlan-6": "2001:660:4406:792:2:0::13",
-      "kavlan-7": "2001:660:4406:793:2:0::13",
-      "kavlan-8": "2001:660:4406:794:2:0::13",
-      "kavlan-9": "2001:660:4406:795:2:0::13"
+      "kavlan-1": "2001:660:4406:780:2::13",
+      "kavlan-11": "2001:660:4406:1a0:702::13",
+      "kavlan-12": "2001:660:4406:2a0:702::13",
+      "kavlan-13": "2001:660:4406:4a0:702::13",
+      "kavlan-14": "2001:660:4406:5a0:702::13",
+      "kavlan-16": "2001:660:4406:7a0:702::13",
+      "kavlan-18": "2001:660:4406:8a0:702::13",
+      "kavlan-2": "2001:660:4406:781:2::13",
+      "kavlan-20": "2001:660:4406:3a0:702::13",
+      "kavlan-21": "2001:660:4406:6a0:702::13",
+      "kavlan-3": "2001:660:4406:782:2::13",
+      "kavlan-4": "2001:660:4406:790:2::13",
+      "kavlan-5": "2001:660:4406:791:2::13",
+      "kavlan-6": "2001:660:4406:792:2::13",
+      "kavlan-7": "2001:660:4406:793:2::13",
+      "kavlan-8": "2001:660:4406:794:2::13",
+      "kavlan-9": "2001:660:4406:795:2::13"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::13",
-      "kavlan-11": "2001:660:4406:1a0:702:1::13",
-      "kavlan-12": "2001:660:4406:2a0:702:1::13",
-      "kavlan-13": "2001:660:4406:4a0:702:1::13",
-      "kavlan-14": "2001:660:4406:5a0:702:1::13",
-      "kavlan-16": "2001:660:4406:7a0:702:1::13",
-      "kavlan-18": "2001:660:4406:8a0:702:1::13",
-      "kavlan-2": "2001:660:4406:781:2:1::13",
-      "kavlan-20": "2001:660:4406:3a0:702:1::13",
-      "kavlan-21": "2001:660:4406:6a0:702:1::13",
-      "kavlan-3": "2001:660:4406:782:2:1::13",
-      "kavlan-4": "2001:660:4406:790:2:1::13",
-      "kavlan-5": "2001:660:4406:791:2:1::13",
-      "kavlan-6": "2001:660:4406:792:2:1::13",
-      "kavlan-7": "2001:660:4406:793:2:1::13",
-      "kavlan-8": "2001:660:4406:794:2:1::13",
-      "kavlan-9": "2001:660:4406:795:2:1::13"
+      "kavlan-1": "2001:660:4406:780:2:1:0:13",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:13",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:13",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:13",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:13",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:13",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:13",
+      "kavlan-2": "2001:660:4406:781:2:1:0:13",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:13",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:13",
+      "kavlan-3": "2001:660:4406:782:2:1:0:13",
+      "kavlan-4": "2001:660:4406:790:2:1:0:13",
+      "kavlan-5": "2001:660:4406:791:2:1:0:13",
+      "kavlan-6": "2001:660:4406:792:2:1:0:13",
+      "kavlan-7": "2001:660:4406:793:2:1:0:13",
+      "kavlan-8": "2001:660:4406:794:2:1:0:13",
+      "kavlan-9": "2001:660:4406:795:2:1:0:13"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.19",
-      "ip6": "2001:660:4406:700:2:0::13",
+      "ip6": "2001:660:4406:700:2::13",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:24:88",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.119",
-      "ip6": "2001:660:4406:700:2:1::13",
+      "ip6": "2001:660:4406:700:2:1:0:13",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:24:8a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-2.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-2.json
index dc625509d45d10f4e117b586241451f3897f3585..1e3028388103cdc13f1860b2d55e403e1b5f63e0 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-2.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-2.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::2",
-      "kavlan-11": "2001:660:4406:1a0:702:0::2",
-      "kavlan-12": "2001:660:4406:2a0:702:0::2",
-      "kavlan-13": "2001:660:4406:4a0:702:0::2",
-      "kavlan-14": "2001:660:4406:5a0:702:0::2",
-      "kavlan-16": "2001:660:4406:7a0:702:0::2",
-      "kavlan-18": "2001:660:4406:8a0:702:0::2",
-      "kavlan-2": "2001:660:4406:781:2:0::2",
-      "kavlan-20": "2001:660:4406:3a0:702:0::2",
-      "kavlan-21": "2001:660:4406:6a0:702:0::2",
-      "kavlan-3": "2001:660:4406:782:2:0::2",
-      "kavlan-4": "2001:660:4406:790:2:0::2",
-      "kavlan-5": "2001:660:4406:791:2:0::2",
-      "kavlan-6": "2001:660:4406:792:2:0::2",
-      "kavlan-7": "2001:660:4406:793:2:0::2",
-      "kavlan-8": "2001:660:4406:794:2:0::2",
-      "kavlan-9": "2001:660:4406:795:2:0::2"
+      "kavlan-1": "2001:660:4406:780:2::2",
+      "kavlan-11": "2001:660:4406:1a0:702::2",
+      "kavlan-12": "2001:660:4406:2a0:702::2",
+      "kavlan-13": "2001:660:4406:4a0:702::2",
+      "kavlan-14": "2001:660:4406:5a0:702::2",
+      "kavlan-16": "2001:660:4406:7a0:702::2",
+      "kavlan-18": "2001:660:4406:8a0:702::2",
+      "kavlan-2": "2001:660:4406:781:2::2",
+      "kavlan-20": "2001:660:4406:3a0:702::2",
+      "kavlan-21": "2001:660:4406:6a0:702::2",
+      "kavlan-3": "2001:660:4406:782:2::2",
+      "kavlan-4": "2001:660:4406:790:2::2",
+      "kavlan-5": "2001:660:4406:791:2::2",
+      "kavlan-6": "2001:660:4406:792:2::2",
+      "kavlan-7": "2001:660:4406:793:2::2",
+      "kavlan-8": "2001:660:4406:794:2::2",
+      "kavlan-9": "2001:660:4406:795:2::2"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::2",
-      "kavlan-11": "2001:660:4406:1a0:702:1::2",
-      "kavlan-12": "2001:660:4406:2a0:702:1::2",
-      "kavlan-13": "2001:660:4406:4a0:702:1::2",
-      "kavlan-14": "2001:660:4406:5a0:702:1::2",
-      "kavlan-16": "2001:660:4406:7a0:702:1::2",
-      "kavlan-18": "2001:660:4406:8a0:702:1::2",
-      "kavlan-2": "2001:660:4406:781:2:1::2",
-      "kavlan-20": "2001:660:4406:3a0:702:1::2",
-      "kavlan-21": "2001:660:4406:6a0:702:1::2",
-      "kavlan-3": "2001:660:4406:782:2:1::2",
-      "kavlan-4": "2001:660:4406:790:2:1::2",
-      "kavlan-5": "2001:660:4406:791:2:1::2",
-      "kavlan-6": "2001:660:4406:792:2:1::2",
-      "kavlan-7": "2001:660:4406:793:2:1::2",
-      "kavlan-8": "2001:660:4406:794:2:1::2",
-      "kavlan-9": "2001:660:4406:795:2:1::2"
+      "kavlan-1": "2001:660:4406:780:2:1:0:2",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:2",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:2",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:2",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:2",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:2",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:2",
+      "kavlan-2": "2001:660:4406:781:2:1:0:2",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:2",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:2",
+      "kavlan-3": "2001:660:4406:782:2:1:0:2",
+      "kavlan-4": "2001:660:4406:790:2:1:0:2",
+      "kavlan-5": "2001:660:4406:791:2:1:0:2",
+      "kavlan-6": "2001:660:4406:792:2:1:0:2",
+      "kavlan-7": "2001:660:4406:793:2:1:0:2",
+      "kavlan-8": "2001:660:4406:794:2:1:0:2",
+      "kavlan-9": "2001:660:4406:795:2:1:0:2"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.2",
-      "ip6": "2001:660:4406:700:2:0::2",
+      "ip6": "2001:660:4406:700:2::2",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f8:50",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.102",
-      "ip6": "2001:660:4406:700:2:1::2",
+      "ip6": "2001:660:4406:700:2:1:0:2",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f8:52",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-20.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-20.json
index 96bd913c2e3e83aa867202a510948897660b3955..392c7633e0644f1fd1d49a2f1dab9b4288070c28 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-20.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-20.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::14",
-      "kavlan-11": "2001:660:4406:1a0:702:0::14",
-      "kavlan-12": "2001:660:4406:2a0:702:0::14",
-      "kavlan-13": "2001:660:4406:4a0:702:0::14",
-      "kavlan-14": "2001:660:4406:5a0:702:0::14",
-      "kavlan-16": "2001:660:4406:7a0:702:0::14",
-      "kavlan-18": "2001:660:4406:8a0:702:0::14",
-      "kavlan-2": "2001:660:4406:781:2:0::14",
-      "kavlan-20": "2001:660:4406:3a0:702:0::14",
-      "kavlan-21": "2001:660:4406:6a0:702:0::14",
-      "kavlan-3": "2001:660:4406:782:2:0::14",
-      "kavlan-4": "2001:660:4406:790:2:0::14",
-      "kavlan-5": "2001:660:4406:791:2:0::14",
-      "kavlan-6": "2001:660:4406:792:2:0::14",
-      "kavlan-7": "2001:660:4406:793:2:0::14",
-      "kavlan-8": "2001:660:4406:794:2:0::14",
-      "kavlan-9": "2001:660:4406:795:2:0::14"
+      "kavlan-1": "2001:660:4406:780:2::14",
+      "kavlan-11": "2001:660:4406:1a0:702::14",
+      "kavlan-12": "2001:660:4406:2a0:702::14",
+      "kavlan-13": "2001:660:4406:4a0:702::14",
+      "kavlan-14": "2001:660:4406:5a0:702::14",
+      "kavlan-16": "2001:660:4406:7a0:702::14",
+      "kavlan-18": "2001:660:4406:8a0:702::14",
+      "kavlan-2": "2001:660:4406:781:2::14",
+      "kavlan-20": "2001:660:4406:3a0:702::14",
+      "kavlan-21": "2001:660:4406:6a0:702::14",
+      "kavlan-3": "2001:660:4406:782:2::14",
+      "kavlan-4": "2001:660:4406:790:2::14",
+      "kavlan-5": "2001:660:4406:791:2::14",
+      "kavlan-6": "2001:660:4406:792:2::14",
+      "kavlan-7": "2001:660:4406:793:2::14",
+      "kavlan-8": "2001:660:4406:794:2::14",
+      "kavlan-9": "2001:660:4406:795:2::14"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::14",
-      "kavlan-11": "2001:660:4406:1a0:702:1::14",
-      "kavlan-12": "2001:660:4406:2a0:702:1::14",
-      "kavlan-13": "2001:660:4406:4a0:702:1::14",
-      "kavlan-14": "2001:660:4406:5a0:702:1::14",
-      "kavlan-16": "2001:660:4406:7a0:702:1::14",
-      "kavlan-18": "2001:660:4406:8a0:702:1::14",
-      "kavlan-2": "2001:660:4406:781:2:1::14",
-      "kavlan-20": "2001:660:4406:3a0:702:1::14",
-      "kavlan-21": "2001:660:4406:6a0:702:1::14",
-      "kavlan-3": "2001:660:4406:782:2:1::14",
-      "kavlan-4": "2001:660:4406:790:2:1::14",
-      "kavlan-5": "2001:660:4406:791:2:1::14",
-      "kavlan-6": "2001:660:4406:792:2:1::14",
-      "kavlan-7": "2001:660:4406:793:2:1::14",
-      "kavlan-8": "2001:660:4406:794:2:1::14",
-      "kavlan-9": "2001:660:4406:795:2:1::14"
+      "kavlan-1": "2001:660:4406:780:2:1:0:14",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:14",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:14",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:14",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:14",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:14",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:14",
+      "kavlan-2": "2001:660:4406:781:2:1:0:14",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:14",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:14",
+      "kavlan-3": "2001:660:4406:782:2:1:0:14",
+      "kavlan-4": "2001:660:4406:790:2:1:0:14",
+      "kavlan-5": "2001:660:4406:791:2:1:0:14",
+      "kavlan-6": "2001:660:4406:792:2:1:0:14",
+      "kavlan-7": "2001:660:4406:793:2:1:0:14",
+      "kavlan-8": "2001:660:4406:794:2:1:0:14",
+      "kavlan-9": "2001:660:4406:795:2:1:0:14"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.20",
-      "ip6": "2001:660:4406:700:2:0::14",
+      "ip6": "2001:660:4406:700:2::14",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fd:30",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.120",
-      "ip6": "2001:660:4406:700:2:1::14",
+      "ip6": "2001:660:4406:700:2:1:0:14",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fd:32",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-21.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-21.json
index 0942af5783558e23087e9df970c437f37e50f2c5..5d62ddc48f687f1939d1c07dacaca18ffe41e4d6 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-21.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-21.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::15",
-      "kavlan-11": "2001:660:4406:1a0:702:0::15",
-      "kavlan-12": "2001:660:4406:2a0:702:0::15",
-      "kavlan-13": "2001:660:4406:4a0:702:0::15",
-      "kavlan-14": "2001:660:4406:5a0:702:0::15",
-      "kavlan-16": "2001:660:4406:7a0:702:0::15",
-      "kavlan-18": "2001:660:4406:8a0:702:0::15",
-      "kavlan-2": "2001:660:4406:781:2:0::15",
-      "kavlan-20": "2001:660:4406:3a0:702:0::15",
-      "kavlan-21": "2001:660:4406:6a0:702:0::15",
-      "kavlan-3": "2001:660:4406:782:2:0::15",
-      "kavlan-4": "2001:660:4406:790:2:0::15",
-      "kavlan-5": "2001:660:4406:791:2:0::15",
-      "kavlan-6": "2001:660:4406:792:2:0::15",
-      "kavlan-7": "2001:660:4406:793:2:0::15",
-      "kavlan-8": "2001:660:4406:794:2:0::15",
-      "kavlan-9": "2001:660:4406:795:2:0::15"
+      "kavlan-1": "2001:660:4406:780:2::15",
+      "kavlan-11": "2001:660:4406:1a0:702::15",
+      "kavlan-12": "2001:660:4406:2a0:702::15",
+      "kavlan-13": "2001:660:4406:4a0:702::15",
+      "kavlan-14": "2001:660:4406:5a0:702::15",
+      "kavlan-16": "2001:660:4406:7a0:702::15",
+      "kavlan-18": "2001:660:4406:8a0:702::15",
+      "kavlan-2": "2001:660:4406:781:2::15",
+      "kavlan-20": "2001:660:4406:3a0:702::15",
+      "kavlan-21": "2001:660:4406:6a0:702::15",
+      "kavlan-3": "2001:660:4406:782:2::15",
+      "kavlan-4": "2001:660:4406:790:2::15",
+      "kavlan-5": "2001:660:4406:791:2::15",
+      "kavlan-6": "2001:660:4406:792:2::15",
+      "kavlan-7": "2001:660:4406:793:2::15",
+      "kavlan-8": "2001:660:4406:794:2::15",
+      "kavlan-9": "2001:660:4406:795:2::15"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::15",
-      "kavlan-11": "2001:660:4406:1a0:702:1::15",
-      "kavlan-12": "2001:660:4406:2a0:702:1::15",
-      "kavlan-13": "2001:660:4406:4a0:702:1::15",
-      "kavlan-14": "2001:660:4406:5a0:702:1::15",
-      "kavlan-16": "2001:660:4406:7a0:702:1::15",
-      "kavlan-18": "2001:660:4406:8a0:702:1::15",
-      "kavlan-2": "2001:660:4406:781:2:1::15",
-      "kavlan-20": "2001:660:4406:3a0:702:1::15",
-      "kavlan-21": "2001:660:4406:6a0:702:1::15",
-      "kavlan-3": "2001:660:4406:782:2:1::15",
-      "kavlan-4": "2001:660:4406:790:2:1::15",
-      "kavlan-5": "2001:660:4406:791:2:1::15",
-      "kavlan-6": "2001:660:4406:792:2:1::15",
-      "kavlan-7": "2001:660:4406:793:2:1::15",
-      "kavlan-8": "2001:660:4406:794:2:1::15",
-      "kavlan-9": "2001:660:4406:795:2:1::15"
+      "kavlan-1": "2001:660:4406:780:2:1:0:15",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:15",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:15",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:15",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:15",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:15",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:15",
+      "kavlan-2": "2001:660:4406:781:2:1:0:15",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:15",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:15",
+      "kavlan-3": "2001:660:4406:782:2:1:0:15",
+      "kavlan-4": "2001:660:4406:790:2:1:0:15",
+      "kavlan-5": "2001:660:4406:791:2:1:0:15",
+      "kavlan-6": "2001:660:4406:792:2:1:0:15",
+      "kavlan-7": "2001:660:4406:793:2:1:0:15",
+      "kavlan-8": "2001:660:4406:794:2:1:0:15",
+      "kavlan-9": "2001:660:4406:795:2:1:0:15"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.21",
-      "ip6": "2001:660:4406:700:2:0::15",
+      "ip6": "2001:660:4406:700:2::15",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:f8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.121",
-      "ip6": "2001:660:4406:700:2:1::15",
+      "ip6": "2001:660:4406:700:2:1:0:15",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:fa",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-22.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-22.json
index 24886c38bd378069eeab8a7dfd255ab5adcf99fe..cc9c48bd0e569c146f52da89e6ec0c745040aeba 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-22.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-22.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::16",
-      "kavlan-11": "2001:660:4406:1a0:702:0::16",
-      "kavlan-12": "2001:660:4406:2a0:702:0::16",
-      "kavlan-13": "2001:660:4406:4a0:702:0::16",
-      "kavlan-14": "2001:660:4406:5a0:702:0::16",
-      "kavlan-16": "2001:660:4406:7a0:702:0::16",
-      "kavlan-18": "2001:660:4406:8a0:702:0::16",
-      "kavlan-2": "2001:660:4406:781:2:0::16",
-      "kavlan-20": "2001:660:4406:3a0:702:0::16",
-      "kavlan-21": "2001:660:4406:6a0:702:0::16",
-      "kavlan-3": "2001:660:4406:782:2:0::16",
-      "kavlan-4": "2001:660:4406:790:2:0::16",
-      "kavlan-5": "2001:660:4406:791:2:0::16",
-      "kavlan-6": "2001:660:4406:792:2:0::16",
-      "kavlan-7": "2001:660:4406:793:2:0::16",
-      "kavlan-8": "2001:660:4406:794:2:0::16",
-      "kavlan-9": "2001:660:4406:795:2:0::16"
+      "kavlan-1": "2001:660:4406:780:2::16",
+      "kavlan-11": "2001:660:4406:1a0:702::16",
+      "kavlan-12": "2001:660:4406:2a0:702::16",
+      "kavlan-13": "2001:660:4406:4a0:702::16",
+      "kavlan-14": "2001:660:4406:5a0:702::16",
+      "kavlan-16": "2001:660:4406:7a0:702::16",
+      "kavlan-18": "2001:660:4406:8a0:702::16",
+      "kavlan-2": "2001:660:4406:781:2::16",
+      "kavlan-20": "2001:660:4406:3a0:702::16",
+      "kavlan-21": "2001:660:4406:6a0:702::16",
+      "kavlan-3": "2001:660:4406:782:2::16",
+      "kavlan-4": "2001:660:4406:790:2::16",
+      "kavlan-5": "2001:660:4406:791:2::16",
+      "kavlan-6": "2001:660:4406:792:2::16",
+      "kavlan-7": "2001:660:4406:793:2::16",
+      "kavlan-8": "2001:660:4406:794:2::16",
+      "kavlan-9": "2001:660:4406:795:2::16"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::16",
-      "kavlan-11": "2001:660:4406:1a0:702:1::16",
-      "kavlan-12": "2001:660:4406:2a0:702:1::16",
-      "kavlan-13": "2001:660:4406:4a0:702:1::16",
-      "kavlan-14": "2001:660:4406:5a0:702:1::16",
-      "kavlan-16": "2001:660:4406:7a0:702:1::16",
-      "kavlan-18": "2001:660:4406:8a0:702:1::16",
-      "kavlan-2": "2001:660:4406:781:2:1::16",
-      "kavlan-20": "2001:660:4406:3a0:702:1::16",
-      "kavlan-21": "2001:660:4406:6a0:702:1::16",
-      "kavlan-3": "2001:660:4406:782:2:1::16",
-      "kavlan-4": "2001:660:4406:790:2:1::16",
-      "kavlan-5": "2001:660:4406:791:2:1::16",
-      "kavlan-6": "2001:660:4406:792:2:1::16",
-      "kavlan-7": "2001:660:4406:793:2:1::16",
-      "kavlan-8": "2001:660:4406:794:2:1::16",
-      "kavlan-9": "2001:660:4406:795:2:1::16"
+      "kavlan-1": "2001:660:4406:780:2:1:0:16",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:16",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:16",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:16",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:16",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:16",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:16",
+      "kavlan-2": "2001:660:4406:781:2:1:0:16",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:16",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:16",
+      "kavlan-3": "2001:660:4406:782:2:1:0:16",
+      "kavlan-4": "2001:660:4406:790:2:1:0:16",
+      "kavlan-5": "2001:660:4406:791:2:1:0:16",
+      "kavlan-6": "2001:660:4406:792:2:1:0:16",
+      "kavlan-7": "2001:660:4406:793:2:1:0:16",
+      "kavlan-8": "2001:660:4406:794:2:1:0:16",
+      "kavlan-9": "2001:660:4406:795:2:1:0:16"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.22",
-      "ip6": "2001:660:4406:700:2:0::16",
+      "ip6": "2001:660:4406:700:2::16",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:60",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.122",
-      "ip6": "2001:660:4406:700:2:1::16",
+      "ip6": "2001:660:4406:700:2:1:0:16",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:62",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-23.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-23.json
index 9ea49d585911b0e4369bec1ab017c431133ab853..6ff4beac38accce95431fc564d3596494e48c1e9 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-23.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-23.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::17",
-      "kavlan-11": "2001:660:4406:1a0:702:0::17",
-      "kavlan-12": "2001:660:4406:2a0:702:0::17",
-      "kavlan-13": "2001:660:4406:4a0:702:0::17",
-      "kavlan-14": "2001:660:4406:5a0:702:0::17",
-      "kavlan-16": "2001:660:4406:7a0:702:0::17",
-      "kavlan-18": "2001:660:4406:8a0:702:0::17",
-      "kavlan-2": "2001:660:4406:781:2:0::17",
-      "kavlan-20": "2001:660:4406:3a0:702:0::17",
-      "kavlan-21": "2001:660:4406:6a0:702:0::17",
-      "kavlan-3": "2001:660:4406:782:2:0::17",
-      "kavlan-4": "2001:660:4406:790:2:0::17",
-      "kavlan-5": "2001:660:4406:791:2:0::17",
-      "kavlan-6": "2001:660:4406:792:2:0::17",
-      "kavlan-7": "2001:660:4406:793:2:0::17",
-      "kavlan-8": "2001:660:4406:794:2:0::17",
-      "kavlan-9": "2001:660:4406:795:2:0::17"
+      "kavlan-1": "2001:660:4406:780:2::17",
+      "kavlan-11": "2001:660:4406:1a0:702::17",
+      "kavlan-12": "2001:660:4406:2a0:702::17",
+      "kavlan-13": "2001:660:4406:4a0:702::17",
+      "kavlan-14": "2001:660:4406:5a0:702::17",
+      "kavlan-16": "2001:660:4406:7a0:702::17",
+      "kavlan-18": "2001:660:4406:8a0:702::17",
+      "kavlan-2": "2001:660:4406:781:2::17",
+      "kavlan-20": "2001:660:4406:3a0:702::17",
+      "kavlan-21": "2001:660:4406:6a0:702::17",
+      "kavlan-3": "2001:660:4406:782:2::17",
+      "kavlan-4": "2001:660:4406:790:2::17",
+      "kavlan-5": "2001:660:4406:791:2::17",
+      "kavlan-6": "2001:660:4406:792:2::17",
+      "kavlan-7": "2001:660:4406:793:2::17",
+      "kavlan-8": "2001:660:4406:794:2::17",
+      "kavlan-9": "2001:660:4406:795:2::17"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::17",
-      "kavlan-11": "2001:660:4406:1a0:702:1::17",
-      "kavlan-12": "2001:660:4406:2a0:702:1::17",
-      "kavlan-13": "2001:660:4406:4a0:702:1::17",
-      "kavlan-14": "2001:660:4406:5a0:702:1::17",
-      "kavlan-16": "2001:660:4406:7a0:702:1::17",
-      "kavlan-18": "2001:660:4406:8a0:702:1::17",
-      "kavlan-2": "2001:660:4406:781:2:1::17",
-      "kavlan-20": "2001:660:4406:3a0:702:1::17",
-      "kavlan-21": "2001:660:4406:6a0:702:1::17",
-      "kavlan-3": "2001:660:4406:782:2:1::17",
-      "kavlan-4": "2001:660:4406:790:2:1::17",
-      "kavlan-5": "2001:660:4406:791:2:1::17",
-      "kavlan-6": "2001:660:4406:792:2:1::17",
-      "kavlan-7": "2001:660:4406:793:2:1::17",
-      "kavlan-8": "2001:660:4406:794:2:1::17",
-      "kavlan-9": "2001:660:4406:795:2:1::17"
+      "kavlan-1": "2001:660:4406:780:2:1:0:17",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:17",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:17",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:17",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:17",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:17",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:17",
+      "kavlan-2": "2001:660:4406:781:2:1:0:17",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:17",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:17",
+      "kavlan-3": "2001:660:4406:782:2:1:0:17",
+      "kavlan-4": "2001:660:4406:790:2:1:0:17",
+      "kavlan-5": "2001:660:4406:791:2:1:0:17",
+      "kavlan-6": "2001:660:4406:792:2:1:0:17",
+      "kavlan-7": "2001:660:4406:793:2:1:0:17",
+      "kavlan-8": "2001:660:4406:794:2:1:0:17",
+      "kavlan-9": "2001:660:4406:795:2:1:0:17"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.23",
-      "ip6": "2001:660:4406:700:2:0::17",
+      "ip6": "2001:660:4406:700:2::17",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:0e:60",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.123",
-      "ip6": "2001:660:4406:700:2:1::17",
+      "ip6": "2001:660:4406:700:2:1:0:17",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:0e:62",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-24.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-24.json
index 4ddfc257df255ac50ddb50387bba83e180c3dc0b..a1c35c970517c832e3cf3022bab3ca8f9d6abfcf 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-24.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-24.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::18",
-      "kavlan-11": "2001:660:4406:1a0:702:0::18",
-      "kavlan-12": "2001:660:4406:2a0:702:0::18",
-      "kavlan-13": "2001:660:4406:4a0:702:0::18",
-      "kavlan-14": "2001:660:4406:5a0:702:0::18",
-      "kavlan-16": "2001:660:4406:7a0:702:0::18",
-      "kavlan-18": "2001:660:4406:8a0:702:0::18",
-      "kavlan-2": "2001:660:4406:781:2:0::18",
-      "kavlan-20": "2001:660:4406:3a0:702:0::18",
-      "kavlan-21": "2001:660:4406:6a0:702:0::18",
-      "kavlan-3": "2001:660:4406:782:2:0::18",
-      "kavlan-4": "2001:660:4406:790:2:0::18",
-      "kavlan-5": "2001:660:4406:791:2:0::18",
-      "kavlan-6": "2001:660:4406:792:2:0::18",
-      "kavlan-7": "2001:660:4406:793:2:0::18",
-      "kavlan-8": "2001:660:4406:794:2:0::18",
-      "kavlan-9": "2001:660:4406:795:2:0::18"
+      "kavlan-1": "2001:660:4406:780:2::18",
+      "kavlan-11": "2001:660:4406:1a0:702::18",
+      "kavlan-12": "2001:660:4406:2a0:702::18",
+      "kavlan-13": "2001:660:4406:4a0:702::18",
+      "kavlan-14": "2001:660:4406:5a0:702::18",
+      "kavlan-16": "2001:660:4406:7a0:702::18",
+      "kavlan-18": "2001:660:4406:8a0:702::18",
+      "kavlan-2": "2001:660:4406:781:2::18",
+      "kavlan-20": "2001:660:4406:3a0:702::18",
+      "kavlan-21": "2001:660:4406:6a0:702::18",
+      "kavlan-3": "2001:660:4406:782:2::18",
+      "kavlan-4": "2001:660:4406:790:2::18",
+      "kavlan-5": "2001:660:4406:791:2::18",
+      "kavlan-6": "2001:660:4406:792:2::18",
+      "kavlan-7": "2001:660:4406:793:2::18",
+      "kavlan-8": "2001:660:4406:794:2::18",
+      "kavlan-9": "2001:660:4406:795:2::18"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::18",
-      "kavlan-11": "2001:660:4406:1a0:702:1::18",
-      "kavlan-12": "2001:660:4406:2a0:702:1::18",
-      "kavlan-13": "2001:660:4406:4a0:702:1::18",
-      "kavlan-14": "2001:660:4406:5a0:702:1::18",
-      "kavlan-16": "2001:660:4406:7a0:702:1::18",
-      "kavlan-18": "2001:660:4406:8a0:702:1::18",
-      "kavlan-2": "2001:660:4406:781:2:1::18",
-      "kavlan-20": "2001:660:4406:3a0:702:1::18",
-      "kavlan-21": "2001:660:4406:6a0:702:1::18",
-      "kavlan-3": "2001:660:4406:782:2:1::18",
-      "kavlan-4": "2001:660:4406:790:2:1::18",
-      "kavlan-5": "2001:660:4406:791:2:1::18",
-      "kavlan-6": "2001:660:4406:792:2:1::18",
-      "kavlan-7": "2001:660:4406:793:2:1::18",
-      "kavlan-8": "2001:660:4406:794:2:1::18",
-      "kavlan-9": "2001:660:4406:795:2:1::18"
+      "kavlan-1": "2001:660:4406:780:2:1:0:18",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:18",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:18",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:18",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:18",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:18",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:18",
+      "kavlan-2": "2001:660:4406:781:2:1:0:18",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:18",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:18",
+      "kavlan-3": "2001:660:4406:782:2:1:0:18",
+      "kavlan-4": "2001:660:4406:790:2:1:0:18",
+      "kavlan-5": "2001:660:4406:791:2:1:0:18",
+      "kavlan-6": "2001:660:4406:792:2:1:0:18",
+      "kavlan-7": "2001:660:4406:793:2:1:0:18",
+      "kavlan-8": "2001:660:4406:794:2:1:0:18",
+      "kavlan-9": "2001:660:4406:795:2:1:0:18"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.24",
-      "ip6": "2001:660:4406:700:2:0::18",
+      "ip6": "2001:660:4406:700:2::18",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:10:18",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.124",
-      "ip6": "2001:660:4406:700:2:1::18",
+      "ip6": "2001:660:4406:700:2:1:0:18",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:10:1a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-25.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-25.json
index 7bcdca1805bb229b2b33e24e771762e36d91f7a8..503a40c23f3dda407b013045963d5dac6f7acf2d 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-25.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-25.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::19",
-      "kavlan-11": "2001:660:4406:1a0:702:0::19",
-      "kavlan-12": "2001:660:4406:2a0:702:0::19",
-      "kavlan-13": "2001:660:4406:4a0:702:0::19",
-      "kavlan-14": "2001:660:4406:5a0:702:0::19",
-      "kavlan-16": "2001:660:4406:7a0:702:0::19",
-      "kavlan-18": "2001:660:4406:8a0:702:0::19",
-      "kavlan-2": "2001:660:4406:781:2:0::19",
-      "kavlan-20": "2001:660:4406:3a0:702:0::19",
-      "kavlan-21": "2001:660:4406:6a0:702:0::19",
-      "kavlan-3": "2001:660:4406:782:2:0::19",
-      "kavlan-4": "2001:660:4406:790:2:0::19",
-      "kavlan-5": "2001:660:4406:791:2:0::19",
-      "kavlan-6": "2001:660:4406:792:2:0::19",
-      "kavlan-7": "2001:660:4406:793:2:0::19",
-      "kavlan-8": "2001:660:4406:794:2:0::19",
-      "kavlan-9": "2001:660:4406:795:2:0::19"
+      "kavlan-1": "2001:660:4406:780:2::19",
+      "kavlan-11": "2001:660:4406:1a0:702::19",
+      "kavlan-12": "2001:660:4406:2a0:702::19",
+      "kavlan-13": "2001:660:4406:4a0:702::19",
+      "kavlan-14": "2001:660:4406:5a0:702::19",
+      "kavlan-16": "2001:660:4406:7a0:702::19",
+      "kavlan-18": "2001:660:4406:8a0:702::19",
+      "kavlan-2": "2001:660:4406:781:2::19",
+      "kavlan-20": "2001:660:4406:3a0:702::19",
+      "kavlan-21": "2001:660:4406:6a0:702::19",
+      "kavlan-3": "2001:660:4406:782:2::19",
+      "kavlan-4": "2001:660:4406:790:2::19",
+      "kavlan-5": "2001:660:4406:791:2::19",
+      "kavlan-6": "2001:660:4406:792:2::19",
+      "kavlan-7": "2001:660:4406:793:2::19",
+      "kavlan-8": "2001:660:4406:794:2::19",
+      "kavlan-9": "2001:660:4406:795:2::19"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::19",
-      "kavlan-11": "2001:660:4406:1a0:702:1::19",
-      "kavlan-12": "2001:660:4406:2a0:702:1::19",
-      "kavlan-13": "2001:660:4406:4a0:702:1::19",
-      "kavlan-14": "2001:660:4406:5a0:702:1::19",
-      "kavlan-16": "2001:660:4406:7a0:702:1::19",
-      "kavlan-18": "2001:660:4406:8a0:702:1::19",
-      "kavlan-2": "2001:660:4406:781:2:1::19",
-      "kavlan-20": "2001:660:4406:3a0:702:1::19",
-      "kavlan-21": "2001:660:4406:6a0:702:1::19",
-      "kavlan-3": "2001:660:4406:782:2:1::19",
-      "kavlan-4": "2001:660:4406:790:2:1::19",
-      "kavlan-5": "2001:660:4406:791:2:1::19",
-      "kavlan-6": "2001:660:4406:792:2:1::19",
-      "kavlan-7": "2001:660:4406:793:2:1::19",
-      "kavlan-8": "2001:660:4406:794:2:1::19",
-      "kavlan-9": "2001:660:4406:795:2:1::19"
+      "kavlan-1": "2001:660:4406:780:2:1:0:19",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:19",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:19",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:19",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:19",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:19",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:19",
+      "kavlan-2": "2001:660:4406:781:2:1:0:19",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:19",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:19",
+      "kavlan-3": "2001:660:4406:782:2:1:0:19",
+      "kavlan-4": "2001:660:4406:790:2:1:0:19",
+      "kavlan-5": "2001:660:4406:791:2:1:0:19",
+      "kavlan-6": "2001:660:4406:792:2:1:0:19",
+      "kavlan-7": "2001:660:4406:793:2:1:0:19",
+      "kavlan-8": "2001:660:4406:794:2:1:0:19",
+      "kavlan-9": "2001:660:4406:795:2:1:0:19"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.25",
-      "ip6": "2001:660:4406:700:2:0::19",
+      "ip6": "2001:660:4406:700:2::19",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:0d:d8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.125",
-      "ip6": "2001:660:4406:700:2:1::19",
+      "ip6": "2001:660:4406:700:2:1:0:19",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:0d:da",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-26.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-26.json
index 242dfdce6c32adf30529857270daece963b08afd..03ac15f69e95d5fee80f06e4944d1d0f98e277d4 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-26.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-26.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::1a",
-      "kavlan-11": "2001:660:4406:1a0:702:0::1a",
-      "kavlan-12": "2001:660:4406:2a0:702:0::1a",
-      "kavlan-13": "2001:660:4406:4a0:702:0::1a",
-      "kavlan-14": "2001:660:4406:5a0:702:0::1a",
-      "kavlan-16": "2001:660:4406:7a0:702:0::1a",
-      "kavlan-18": "2001:660:4406:8a0:702:0::1a",
-      "kavlan-2": "2001:660:4406:781:2:0::1a",
-      "kavlan-20": "2001:660:4406:3a0:702:0::1a",
-      "kavlan-21": "2001:660:4406:6a0:702:0::1a",
-      "kavlan-3": "2001:660:4406:782:2:0::1a",
-      "kavlan-4": "2001:660:4406:790:2:0::1a",
-      "kavlan-5": "2001:660:4406:791:2:0::1a",
-      "kavlan-6": "2001:660:4406:792:2:0::1a",
-      "kavlan-7": "2001:660:4406:793:2:0::1a",
-      "kavlan-8": "2001:660:4406:794:2:0::1a",
-      "kavlan-9": "2001:660:4406:795:2:0::1a"
+      "kavlan-1": "2001:660:4406:780:2::1a",
+      "kavlan-11": "2001:660:4406:1a0:702::1a",
+      "kavlan-12": "2001:660:4406:2a0:702::1a",
+      "kavlan-13": "2001:660:4406:4a0:702::1a",
+      "kavlan-14": "2001:660:4406:5a0:702::1a",
+      "kavlan-16": "2001:660:4406:7a0:702::1a",
+      "kavlan-18": "2001:660:4406:8a0:702::1a",
+      "kavlan-2": "2001:660:4406:781:2::1a",
+      "kavlan-20": "2001:660:4406:3a0:702::1a",
+      "kavlan-21": "2001:660:4406:6a0:702::1a",
+      "kavlan-3": "2001:660:4406:782:2::1a",
+      "kavlan-4": "2001:660:4406:790:2::1a",
+      "kavlan-5": "2001:660:4406:791:2::1a",
+      "kavlan-6": "2001:660:4406:792:2::1a",
+      "kavlan-7": "2001:660:4406:793:2::1a",
+      "kavlan-8": "2001:660:4406:794:2::1a",
+      "kavlan-9": "2001:660:4406:795:2::1a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::1a",
-      "kavlan-11": "2001:660:4406:1a0:702:1::1a",
-      "kavlan-12": "2001:660:4406:2a0:702:1::1a",
-      "kavlan-13": "2001:660:4406:4a0:702:1::1a",
-      "kavlan-14": "2001:660:4406:5a0:702:1::1a",
-      "kavlan-16": "2001:660:4406:7a0:702:1::1a",
-      "kavlan-18": "2001:660:4406:8a0:702:1::1a",
-      "kavlan-2": "2001:660:4406:781:2:1::1a",
-      "kavlan-20": "2001:660:4406:3a0:702:1::1a",
-      "kavlan-21": "2001:660:4406:6a0:702:1::1a",
-      "kavlan-3": "2001:660:4406:782:2:1::1a",
-      "kavlan-4": "2001:660:4406:790:2:1::1a",
-      "kavlan-5": "2001:660:4406:791:2:1::1a",
-      "kavlan-6": "2001:660:4406:792:2:1::1a",
-      "kavlan-7": "2001:660:4406:793:2:1::1a",
-      "kavlan-8": "2001:660:4406:794:2:1::1a",
-      "kavlan-9": "2001:660:4406:795:2:1::1a"
+      "kavlan-1": "2001:660:4406:780:2:1:0:1a",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:1a",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:1a",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:1a",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:1a",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:1a",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:1a",
+      "kavlan-2": "2001:660:4406:781:2:1:0:1a",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:1a",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:1a",
+      "kavlan-3": "2001:660:4406:782:2:1:0:1a",
+      "kavlan-4": "2001:660:4406:790:2:1:0:1a",
+      "kavlan-5": "2001:660:4406:791:2:1:0:1a",
+      "kavlan-6": "2001:660:4406:792:2:1:0:1a",
+      "kavlan-7": "2001:660:4406:793:2:1:0:1a",
+      "kavlan-8": "2001:660:4406:794:2:1:0:1a",
+      "kavlan-9": "2001:660:4406:795:2:1:0:1a"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.26",
-      "ip6": "2001:660:4406:700:2:0::1a",
+      "ip6": "2001:660:4406:700:2::1a",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:26:08",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.126",
-      "ip6": "2001:660:4406:700:2:1::1a",
+      "ip6": "2001:660:4406:700:2:1:0:1a",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:26:0a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-27.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-27.json
index 74da8c7c205b43ac555a5461c98e7ddaf1731630..7435e6ad83f819e015e928872c8184a6c7f6456d 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-27.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-27.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::1b",
-      "kavlan-11": "2001:660:4406:1a0:702:0::1b",
-      "kavlan-12": "2001:660:4406:2a0:702:0::1b",
-      "kavlan-13": "2001:660:4406:4a0:702:0::1b",
-      "kavlan-14": "2001:660:4406:5a0:702:0::1b",
-      "kavlan-16": "2001:660:4406:7a0:702:0::1b",
-      "kavlan-18": "2001:660:4406:8a0:702:0::1b",
-      "kavlan-2": "2001:660:4406:781:2:0::1b",
-      "kavlan-20": "2001:660:4406:3a0:702:0::1b",
-      "kavlan-21": "2001:660:4406:6a0:702:0::1b",
-      "kavlan-3": "2001:660:4406:782:2:0::1b",
-      "kavlan-4": "2001:660:4406:790:2:0::1b",
-      "kavlan-5": "2001:660:4406:791:2:0::1b",
-      "kavlan-6": "2001:660:4406:792:2:0::1b",
-      "kavlan-7": "2001:660:4406:793:2:0::1b",
-      "kavlan-8": "2001:660:4406:794:2:0::1b",
-      "kavlan-9": "2001:660:4406:795:2:0::1b"
+      "kavlan-1": "2001:660:4406:780:2::1b",
+      "kavlan-11": "2001:660:4406:1a0:702::1b",
+      "kavlan-12": "2001:660:4406:2a0:702::1b",
+      "kavlan-13": "2001:660:4406:4a0:702::1b",
+      "kavlan-14": "2001:660:4406:5a0:702::1b",
+      "kavlan-16": "2001:660:4406:7a0:702::1b",
+      "kavlan-18": "2001:660:4406:8a0:702::1b",
+      "kavlan-2": "2001:660:4406:781:2::1b",
+      "kavlan-20": "2001:660:4406:3a0:702::1b",
+      "kavlan-21": "2001:660:4406:6a0:702::1b",
+      "kavlan-3": "2001:660:4406:782:2::1b",
+      "kavlan-4": "2001:660:4406:790:2::1b",
+      "kavlan-5": "2001:660:4406:791:2::1b",
+      "kavlan-6": "2001:660:4406:792:2::1b",
+      "kavlan-7": "2001:660:4406:793:2::1b",
+      "kavlan-8": "2001:660:4406:794:2::1b",
+      "kavlan-9": "2001:660:4406:795:2::1b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::1b",
-      "kavlan-11": "2001:660:4406:1a0:702:1::1b",
-      "kavlan-12": "2001:660:4406:2a0:702:1::1b",
-      "kavlan-13": "2001:660:4406:4a0:702:1::1b",
-      "kavlan-14": "2001:660:4406:5a0:702:1::1b",
-      "kavlan-16": "2001:660:4406:7a0:702:1::1b",
-      "kavlan-18": "2001:660:4406:8a0:702:1::1b",
-      "kavlan-2": "2001:660:4406:781:2:1::1b",
-      "kavlan-20": "2001:660:4406:3a0:702:1::1b",
-      "kavlan-21": "2001:660:4406:6a0:702:1::1b",
-      "kavlan-3": "2001:660:4406:782:2:1::1b",
-      "kavlan-4": "2001:660:4406:790:2:1::1b",
-      "kavlan-5": "2001:660:4406:791:2:1::1b",
-      "kavlan-6": "2001:660:4406:792:2:1::1b",
-      "kavlan-7": "2001:660:4406:793:2:1::1b",
-      "kavlan-8": "2001:660:4406:794:2:1::1b",
-      "kavlan-9": "2001:660:4406:795:2:1::1b"
+      "kavlan-1": "2001:660:4406:780:2:1:0:1b",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:1b",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:1b",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:1b",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:1b",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:1b",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:1b",
+      "kavlan-2": "2001:660:4406:781:2:1:0:1b",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:1b",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:1b",
+      "kavlan-3": "2001:660:4406:782:2:1:0:1b",
+      "kavlan-4": "2001:660:4406:790:2:1:0:1b",
+      "kavlan-5": "2001:660:4406:791:2:1:0:1b",
+      "kavlan-6": "2001:660:4406:792:2:1:0:1b",
+      "kavlan-7": "2001:660:4406:793:2:1:0:1b",
+      "kavlan-8": "2001:660:4406:794:2:1:0:1b",
+      "kavlan-9": "2001:660:4406:795:2:1:0:1b"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.27",
-      "ip6": "2001:660:4406:700:2:0::1b",
+      "ip6": "2001:660:4406:700:2::1b",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fb:e8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.127",
-      "ip6": "2001:660:4406:700:2:1::1b",
+      "ip6": "2001:660:4406:700:2:1:0:1b",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fb:ea",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-28.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-28.json
index be49846c6c549a5f38ec047ad188a5797b403a37..e0d6a96a091b3d9027112f2a75dff45edea22fbe 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-28.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-28.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::1c",
-      "kavlan-11": "2001:660:4406:1a0:702:0::1c",
-      "kavlan-12": "2001:660:4406:2a0:702:0::1c",
-      "kavlan-13": "2001:660:4406:4a0:702:0::1c",
-      "kavlan-14": "2001:660:4406:5a0:702:0::1c",
-      "kavlan-16": "2001:660:4406:7a0:702:0::1c",
-      "kavlan-18": "2001:660:4406:8a0:702:0::1c",
-      "kavlan-2": "2001:660:4406:781:2:0::1c",
-      "kavlan-20": "2001:660:4406:3a0:702:0::1c",
-      "kavlan-21": "2001:660:4406:6a0:702:0::1c",
-      "kavlan-3": "2001:660:4406:782:2:0::1c",
-      "kavlan-4": "2001:660:4406:790:2:0::1c",
-      "kavlan-5": "2001:660:4406:791:2:0::1c",
-      "kavlan-6": "2001:660:4406:792:2:0::1c",
-      "kavlan-7": "2001:660:4406:793:2:0::1c",
-      "kavlan-8": "2001:660:4406:794:2:0::1c",
-      "kavlan-9": "2001:660:4406:795:2:0::1c"
+      "kavlan-1": "2001:660:4406:780:2::1c",
+      "kavlan-11": "2001:660:4406:1a0:702::1c",
+      "kavlan-12": "2001:660:4406:2a0:702::1c",
+      "kavlan-13": "2001:660:4406:4a0:702::1c",
+      "kavlan-14": "2001:660:4406:5a0:702::1c",
+      "kavlan-16": "2001:660:4406:7a0:702::1c",
+      "kavlan-18": "2001:660:4406:8a0:702::1c",
+      "kavlan-2": "2001:660:4406:781:2::1c",
+      "kavlan-20": "2001:660:4406:3a0:702::1c",
+      "kavlan-21": "2001:660:4406:6a0:702::1c",
+      "kavlan-3": "2001:660:4406:782:2::1c",
+      "kavlan-4": "2001:660:4406:790:2::1c",
+      "kavlan-5": "2001:660:4406:791:2::1c",
+      "kavlan-6": "2001:660:4406:792:2::1c",
+      "kavlan-7": "2001:660:4406:793:2::1c",
+      "kavlan-8": "2001:660:4406:794:2::1c",
+      "kavlan-9": "2001:660:4406:795:2::1c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::1c",
-      "kavlan-11": "2001:660:4406:1a0:702:1::1c",
-      "kavlan-12": "2001:660:4406:2a0:702:1::1c",
-      "kavlan-13": "2001:660:4406:4a0:702:1::1c",
-      "kavlan-14": "2001:660:4406:5a0:702:1::1c",
-      "kavlan-16": "2001:660:4406:7a0:702:1::1c",
-      "kavlan-18": "2001:660:4406:8a0:702:1::1c",
-      "kavlan-2": "2001:660:4406:781:2:1::1c",
-      "kavlan-20": "2001:660:4406:3a0:702:1::1c",
-      "kavlan-21": "2001:660:4406:6a0:702:1::1c",
-      "kavlan-3": "2001:660:4406:782:2:1::1c",
-      "kavlan-4": "2001:660:4406:790:2:1::1c",
-      "kavlan-5": "2001:660:4406:791:2:1::1c",
-      "kavlan-6": "2001:660:4406:792:2:1::1c",
-      "kavlan-7": "2001:660:4406:793:2:1::1c",
-      "kavlan-8": "2001:660:4406:794:2:1::1c",
-      "kavlan-9": "2001:660:4406:795:2:1::1c"
+      "kavlan-1": "2001:660:4406:780:2:1:0:1c",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:1c",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:1c",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:1c",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:1c",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:1c",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:1c",
+      "kavlan-2": "2001:660:4406:781:2:1:0:1c",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:1c",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:1c",
+      "kavlan-3": "2001:660:4406:782:2:1:0:1c",
+      "kavlan-4": "2001:660:4406:790:2:1:0:1c",
+      "kavlan-5": "2001:660:4406:791:2:1:0:1c",
+      "kavlan-6": "2001:660:4406:792:2:1:0:1c",
+      "kavlan-7": "2001:660:4406:793:2:1:0:1c",
+      "kavlan-8": "2001:660:4406:794:2:1:0:1c",
+      "kavlan-9": "2001:660:4406:795:2:1:0:1c"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.28",
-      "ip6": "2001:660:4406:700:2:0::1c",
+      "ip6": "2001:660:4406:700:2::1c",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:04:38",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.128",
-      "ip6": "2001:660:4406:700:2:1::1c",
+      "ip6": "2001:660:4406:700:2:1:0:1c",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:04:3a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-3.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-3.json
index 49e78d0b21bc91af570524495e26a38b1f081375..fc08ef9761a857f476b14d8db6eb855f5a430c0d 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-3.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-3.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::3",
-      "kavlan-11": "2001:660:4406:1a0:702:0::3",
-      "kavlan-12": "2001:660:4406:2a0:702:0::3",
-      "kavlan-13": "2001:660:4406:4a0:702:0::3",
-      "kavlan-14": "2001:660:4406:5a0:702:0::3",
-      "kavlan-16": "2001:660:4406:7a0:702:0::3",
-      "kavlan-18": "2001:660:4406:8a0:702:0::3",
-      "kavlan-2": "2001:660:4406:781:2:0::3",
-      "kavlan-20": "2001:660:4406:3a0:702:0::3",
-      "kavlan-21": "2001:660:4406:6a0:702:0::3",
-      "kavlan-3": "2001:660:4406:782:2:0::3",
-      "kavlan-4": "2001:660:4406:790:2:0::3",
-      "kavlan-5": "2001:660:4406:791:2:0::3",
-      "kavlan-6": "2001:660:4406:792:2:0::3",
-      "kavlan-7": "2001:660:4406:793:2:0::3",
-      "kavlan-8": "2001:660:4406:794:2:0::3",
-      "kavlan-9": "2001:660:4406:795:2:0::3"
+      "kavlan-1": "2001:660:4406:780:2::3",
+      "kavlan-11": "2001:660:4406:1a0:702::3",
+      "kavlan-12": "2001:660:4406:2a0:702::3",
+      "kavlan-13": "2001:660:4406:4a0:702::3",
+      "kavlan-14": "2001:660:4406:5a0:702::3",
+      "kavlan-16": "2001:660:4406:7a0:702::3",
+      "kavlan-18": "2001:660:4406:8a0:702::3",
+      "kavlan-2": "2001:660:4406:781:2::3",
+      "kavlan-20": "2001:660:4406:3a0:702::3",
+      "kavlan-21": "2001:660:4406:6a0:702::3",
+      "kavlan-3": "2001:660:4406:782:2::3",
+      "kavlan-4": "2001:660:4406:790:2::3",
+      "kavlan-5": "2001:660:4406:791:2::3",
+      "kavlan-6": "2001:660:4406:792:2::3",
+      "kavlan-7": "2001:660:4406:793:2::3",
+      "kavlan-8": "2001:660:4406:794:2::3",
+      "kavlan-9": "2001:660:4406:795:2::3"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::3",
-      "kavlan-11": "2001:660:4406:1a0:702:1::3",
-      "kavlan-12": "2001:660:4406:2a0:702:1::3",
-      "kavlan-13": "2001:660:4406:4a0:702:1::3",
-      "kavlan-14": "2001:660:4406:5a0:702:1::3",
-      "kavlan-16": "2001:660:4406:7a0:702:1::3",
-      "kavlan-18": "2001:660:4406:8a0:702:1::3",
-      "kavlan-2": "2001:660:4406:781:2:1::3",
-      "kavlan-20": "2001:660:4406:3a0:702:1::3",
-      "kavlan-21": "2001:660:4406:6a0:702:1::3",
-      "kavlan-3": "2001:660:4406:782:2:1::3",
-      "kavlan-4": "2001:660:4406:790:2:1::3",
-      "kavlan-5": "2001:660:4406:791:2:1::3",
-      "kavlan-6": "2001:660:4406:792:2:1::3",
-      "kavlan-7": "2001:660:4406:793:2:1::3",
-      "kavlan-8": "2001:660:4406:794:2:1::3",
-      "kavlan-9": "2001:660:4406:795:2:1::3"
+      "kavlan-1": "2001:660:4406:780:2:1:0:3",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:3",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:3",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:3",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:3",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:3",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:3",
+      "kavlan-2": "2001:660:4406:781:2:1:0:3",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:3",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:3",
+      "kavlan-3": "2001:660:4406:782:2:1:0:3",
+      "kavlan-4": "2001:660:4406:790:2:1:0:3",
+      "kavlan-5": "2001:660:4406:791:2:1:0:3",
+      "kavlan-6": "2001:660:4406:792:2:1:0:3",
+      "kavlan-7": "2001:660:4406:793:2:1:0:3",
+      "kavlan-8": "2001:660:4406:794:2:1:0:3",
+      "kavlan-9": "2001:660:4406:795:2:1:0:3"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.3",
-      "ip6": "2001:660:4406:700:2:0::3",
+      "ip6": "2001:660:4406:700:2::3",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f3:18",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.103",
-      "ip6": "2001:660:4406:700:2:1::3",
+      "ip6": "2001:660:4406:700:2:1:0:3",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f3:1a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-4.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-4.json
index ef520775f1247c07ac1771a40aa3efd0d54f79f7..df0da0f68d47044daf2daf6923cd759b9cb8f2ee 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-4.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-4.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::4",
-      "kavlan-11": "2001:660:4406:1a0:702:0::4",
-      "kavlan-12": "2001:660:4406:2a0:702:0::4",
-      "kavlan-13": "2001:660:4406:4a0:702:0::4",
-      "kavlan-14": "2001:660:4406:5a0:702:0::4",
-      "kavlan-16": "2001:660:4406:7a0:702:0::4",
-      "kavlan-18": "2001:660:4406:8a0:702:0::4",
-      "kavlan-2": "2001:660:4406:781:2:0::4",
-      "kavlan-20": "2001:660:4406:3a0:702:0::4",
-      "kavlan-21": "2001:660:4406:6a0:702:0::4",
-      "kavlan-3": "2001:660:4406:782:2:0::4",
-      "kavlan-4": "2001:660:4406:790:2:0::4",
-      "kavlan-5": "2001:660:4406:791:2:0::4",
-      "kavlan-6": "2001:660:4406:792:2:0::4",
-      "kavlan-7": "2001:660:4406:793:2:0::4",
-      "kavlan-8": "2001:660:4406:794:2:0::4",
-      "kavlan-9": "2001:660:4406:795:2:0::4"
+      "kavlan-1": "2001:660:4406:780:2::4",
+      "kavlan-11": "2001:660:4406:1a0:702::4",
+      "kavlan-12": "2001:660:4406:2a0:702::4",
+      "kavlan-13": "2001:660:4406:4a0:702::4",
+      "kavlan-14": "2001:660:4406:5a0:702::4",
+      "kavlan-16": "2001:660:4406:7a0:702::4",
+      "kavlan-18": "2001:660:4406:8a0:702::4",
+      "kavlan-2": "2001:660:4406:781:2::4",
+      "kavlan-20": "2001:660:4406:3a0:702::4",
+      "kavlan-21": "2001:660:4406:6a0:702::4",
+      "kavlan-3": "2001:660:4406:782:2::4",
+      "kavlan-4": "2001:660:4406:790:2::4",
+      "kavlan-5": "2001:660:4406:791:2::4",
+      "kavlan-6": "2001:660:4406:792:2::4",
+      "kavlan-7": "2001:660:4406:793:2::4",
+      "kavlan-8": "2001:660:4406:794:2::4",
+      "kavlan-9": "2001:660:4406:795:2::4"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::4",
-      "kavlan-11": "2001:660:4406:1a0:702:1::4",
-      "kavlan-12": "2001:660:4406:2a0:702:1::4",
-      "kavlan-13": "2001:660:4406:4a0:702:1::4",
-      "kavlan-14": "2001:660:4406:5a0:702:1::4",
-      "kavlan-16": "2001:660:4406:7a0:702:1::4",
-      "kavlan-18": "2001:660:4406:8a0:702:1::4",
-      "kavlan-2": "2001:660:4406:781:2:1::4",
-      "kavlan-20": "2001:660:4406:3a0:702:1::4",
-      "kavlan-21": "2001:660:4406:6a0:702:1::4",
-      "kavlan-3": "2001:660:4406:782:2:1::4",
-      "kavlan-4": "2001:660:4406:790:2:1::4",
-      "kavlan-5": "2001:660:4406:791:2:1::4",
-      "kavlan-6": "2001:660:4406:792:2:1::4",
-      "kavlan-7": "2001:660:4406:793:2:1::4",
-      "kavlan-8": "2001:660:4406:794:2:1::4",
-      "kavlan-9": "2001:660:4406:795:2:1::4"
+      "kavlan-1": "2001:660:4406:780:2:1:0:4",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:4",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:4",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:4",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:4",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:4",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:4",
+      "kavlan-2": "2001:660:4406:781:2:1:0:4",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:4",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:4",
+      "kavlan-3": "2001:660:4406:782:2:1:0:4",
+      "kavlan-4": "2001:660:4406:790:2:1:0:4",
+      "kavlan-5": "2001:660:4406:791:2:1:0:4",
+      "kavlan-6": "2001:660:4406:792:2:1:0:4",
+      "kavlan-7": "2001:660:4406:793:2:1:0:4",
+      "kavlan-8": "2001:660:4406:794:2:1:0:4",
+      "kavlan-9": "2001:660:4406:795:2:1:0:4"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.4",
-      "ip6": "2001:660:4406:700:2:0::4",
+      "ip6": "2001:660:4406:700:2::4",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:88",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.104",
-      "ip6": "2001:660:4406:700:2:1::4",
+      "ip6": "2001:660:4406:700:2:1:0:4",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:8a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-5.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-5.json
index 6959c69ca4473275c3a54463be8ee17168f68320..5e7abaf558f41624087db0a891fe49114b53fadb 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-5.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-5.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::5",
-      "kavlan-11": "2001:660:4406:1a0:702:0::5",
-      "kavlan-12": "2001:660:4406:2a0:702:0::5",
-      "kavlan-13": "2001:660:4406:4a0:702:0::5",
-      "kavlan-14": "2001:660:4406:5a0:702:0::5",
-      "kavlan-16": "2001:660:4406:7a0:702:0::5",
-      "kavlan-18": "2001:660:4406:8a0:702:0::5",
-      "kavlan-2": "2001:660:4406:781:2:0::5",
-      "kavlan-20": "2001:660:4406:3a0:702:0::5",
-      "kavlan-21": "2001:660:4406:6a0:702:0::5",
-      "kavlan-3": "2001:660:4406:782:2:0::5",
-      "kavlan-4": "2001:660:4406:790:2:0::5",
-      "kavlan-5": "2001:660:4406:791:2:0::5",
-      "kavlan-6": "2001:660:4406:792:2:0::5",
-      "kavlan-7": "2001:660:4406:793:2:0::5",
-      "kavlan-8": "2001:660:4406:794:2:0::5",
-      "kavlan-9": "2001:660:4406:795:2:0::5"
+      "kavlan-1": "2001:660:4406:780:2::5",
+      "kavlan-11": "2001:660:4406:1a0:702::5",
+      "kavlan-12": "2001:660:4406:2a0:702::5",
+      "kavlan-13": "2001:660:4406:4a0:702::5",
+      "kavlan-14": "2001:660:4406:5a0:702::5",
+      "kavlan-16": "2001:660:4406:7a0:702::5",
+      "kavlan-18": "2001:660:4406:8a0:702::5",
+      "kavlan-2": "2001:660:4406:781:2::5",
+      "kavlan-20": "2001:660:4406:3a0:702::5",
+      "kavlan-21": "2001:660:4406:6a0:702::5",
+      "kavlan-3": "2001:660:4406:782:2::5",
+      "kavlan-4": "2001:660:4406:790:2::5",
+      "kavlan-5": "2001:660:4406:791:2::5",
+      "kavlan-6": "2001:660:4406:792:2::5",
+      "kavlan-7": "2001:660:4406:793:2::5",
+      "kavlan-8": "2001:660:4406:794:2::5",
+      "kavlan-9": "2001:660:4406:795:2::5"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::5",
-      "kavlan-11": "2001:660:4406:1a0:702:1::5",
-      "kavlan-12": "2001:660:4406:2a0:702:1::5",
-      "kavlan-13": "2001:660:4406:4a0:702:1::5",
-      "kavlan-14": "2001:660:4406:5a0:702:1::5",
-      "kavlan-16": "2001:660:4406:7a0:702:1::5",
-      "kavlan-18": "2001:660:4406:8a0:702:1::5",
-      "kavlan-2": "2001:660:4406:781:2:1::5",
-      "kavlan-20": "2001:660:4406:3a0:702:1::5",
-      "kavlan-21": "2001:660:4406:6a0:702:1::5",
-      "kavlan-3": "2001:660:4406:782:2:1::5",
-      "kavlan-4": "2001:660:4406:790:2:1::5",
-      "kavlan-5": "2001:660:4406:791:2:1::5",
-      "kavlan-6": "2001:660:4406:792:2:1::5",
-      "kavlan-7": "2001:660:4406:793:2:1::5",
-      "kavlan-8": "2001:660:4406:794:2:1::5",
-      "kavlan-9": "2001:660:4406:795:2:1::5"
+      "kavlan-1": "2001:660:4406:780:2:1:0:5",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:5",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:5",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:5",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:5",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:5",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:5",
+      "kavlan-2": "2001:660:4406:781:2:1:0:5",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:5",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:5",
+      "kavlan-3": "2001:660:4406:782:2:1:0:5",
+      "kavlan-4": "2001:660:4406:790:2:1:0:5",
+      "kavlan-5": "2001:660:4406:791:2:1:0:5",
+      "kavlan-6": "2001:660:4406:792:2:1:0:5",
+      "kavlan-7": "2001:660:4406:793:2:1:0:5",
+      "kavlan-8": "2001:660:4406:794:2:1:0:5",
+      "kavlan-9": "2001:660:4406:795:2:1:0:5"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.5",
-      "ip6": "2001:660:4406:700:2:0::5",
+      "ip6": "2001:660:4406:700:2::5",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:60",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.105",
-      "ip6": "2001:660:4406:700:2:1::5",
+      "ip6": "2001:660:4406:700:2:1:0:5",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:62",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-6.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-6.json
index 42a7fc6dd1c49511bde488476a75a5977f3a6f9e..bf29c13acd301cefda15ad5a3b72ebf0d2a6e4dd 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-6.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-6.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::6",
-      "kavlan-11": "2001:660:4406:1a0:702:0::6",
-      "kavlan-12": "2001:660:4406:2a0:702:0::6",
-      "kavlan-13": "2001:660:4406:4a0:702:0::6",
-      "kavlan-14": "2001:660:4406:5a0:702:0::6",
-      "kavlan-16": "2001:660:4406:7a0:702:0::6",
-      "kavlan-18": "2001:660:4406:8a0:702:0::6",
-      "kavlan-2": "2001:660:4406:781:2:0::6",
-      "kavlan-20": "2001:660:4406:3a0:702:0::6",
-      "kavlan-21": "2001:660:4406:6a0:702:0::6",
-      "kavlan-3": "2001:660:4406:782:2:0::6",
-      "kavlan-4": "2001:660:4406:790:2:0::6",
-      "kavlan-5": "2001:660:4406:791:2:0::6",
-      "kavlan-6": "2001:660:4406:792:2:0::6",
-      "kavlan-7": "2001:660:4406:793:2:0::6",
-      "kavlan-8": "2001:660:4406:794:2:0::6",
-      "kavlan-9": "2001:660:4406:795:2:0::6"
+      "kavlan-1": "2001:660:4406:780:2::6",
+      "kavlan-11": "2001:660:4406:1a0:702::6",
+      "kavlan-12": "2001:660:4406:2a0:702::6",
+      "kavlan-13": "2001:660:4406:4a0:702::6",
+      "kavlan-14": "2001:660:4406:5a0:702::6",
+      "kavlan-16": "2001:660:4406:7a0:702::6",
+      "kavlan-18": "2001:660:4406:8a0:702::6",
+      "kavlan-2": "2001:660:4406:781:2::6",
+      "kavlan-20": "2001:660:4406:3a0:702::6",
+      "kavlan-21": "2001:660:4406:6a0:702::6",
+      "kavlan-3": "2001:660:4406:782:2::6",
+      "kavlan-4": "2001:660:4406:790:2::6",
+      "kavlan-5": "2001:660:4406:791:2::6",
+      "kavlan-6": "2001:660:4406:792:2::6",
+      "kavlan-7": "2001:660:4406:793:2::6",
+      "kavlan-8": "2001:660:4406:794:2::6",
+      "kavlan-9": "2001:660:4406:795:2::6"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::6",
-      "kavlan-11": "2001:660:4406:1a0:702:1::6",
-      "kavlan-12": "2001:660:4406:2a0:702:1::6",
-      "kavlan-13": "2001:660:4406:4a0:702:1::6",
-      "kavlan-14": "2001:660:4406:5a0:702:1::6",
-      "kavlan-16": "2001:660:4406:7a0:702:1::6",
-      "kavlan-18": "2001:660:4406:8a0:702:1::6",
-      "kavlan-2": "2001:660:4406:781:2:1::6",
-      "kavlan-20": "2001:660:4406:3a0:702:1::6",
-      "kavlan-21": "2001:660:4406:6a0:702:1::6",
-      "kavlan-3": "2001:660:4406:782:2:1::6",
-      "kavlan-4": "2001:660:4406:790:2:1::6",
-      "kavlan-5": "2001:660:4406:791:2:1::6",
-      "kavlan-6": "2001:660:4406:792:2:1::6",
-      "kavlan-7": "2001:660:4406:793:2:1::6",
-      "kavlan-8": "2001:660:4406:794:2:1::6",
-      "kavlan-9": "2001:660:4406:795:2:1::6"
+      "kavlan-1": "2001:660:4406:780:2:1:0:6",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:6",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:6",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:6",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:6",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:6",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:6",
+      "kavlan-2": "2001:660:4406:781:2:1:0:6",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:6",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:6",
+      "kavlan-3": "2001:660:4406:782:2:1:0:6",
+      "kavlan-4": "2001:660:4406:790:2:1:0:6",
+      "kavlan-5": "2001:660:4406:791:2:1:0:6",
+      "kavlan-6": "2001:660:4406:792:2:1:0:6",
+      "kavlan-7": "2001:660:4406:793:2:1:0:6",
+      "kavlan-8": "2001:660:4406:794:2:1:0:6",
+      "kavlan-9": "2001:660:4406:795:2:1:0:6"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.6",
-      "ip6": "2001:660:4406:700:2:0::6",
+      "ip6": "2001:660:4406:700:2::6",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:70",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.106",
-      "ip6": "2001:660:4406:700:2:1::6",
+      "ip6": "2001:660:4406:700:2:1:0:6",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:72",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-7.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-7.json
index d1ae7d4b9eee218dbdf55dcd290474f09c6ac145..765244ee6c0e248c940ba82b061a9afbfa810a31 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-7.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-7.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::7",
-      "kavlan-11": "2001:660:4406:1a0:702:0::7",
-      "kavlan-12": "2001:660:4406:2a0:702:0::7",
-      "kavlan-13": "2001:660:4406:4a0:702:0::7",
-      "kavlan-14": "2001:660:4406:5a0:702:0::7",
-      "kavlan-16": "2001:660:4406:7a0:702:0::7",
-      "kavlan-18": "2001:660:4406:8a0:702:0::7",
-      "kavlan-2": "2001:660:4406:781:2:0::7",
-      "kavlan-20": "2001:660:4406:3a0:702:0::7",
-      "kavlan-21": "2001:660:4406:6a0:702:0::7",
-      "kavlan-3": "2001:660:4406:782:2:0::7",
-      "kavlan-4": "2001:660:4406:790:2:0::7",
-      "kavlan-5": "2001:660:4406:791:2:0::7",
-      "kavlan-6": "2001:660:4406:792:2:0::7",
-      "kavlan-7": "2001:660:4406:793:2:0::7",
-      "kavlan-8": "2001:660:4406:794:2:0::7",
-      "kavlan-9": "2001:660:4406:795:2:0::7"
+      "kavlan-1": "2001:660:4406:780:2::7",
+      "kavlan-11": "2001:660:4406:1a0:702::7",
+      "kavlan-12": "2001:660:4406:2a0:702::7",
+      "kavlan-13": "2001:660:4406:4a0:702::7",
+      "kavlan-14": "2001:660:4406:5a0:702::7",
+      "kavlan-16": "2001:660:4406:7a0:702::7",
+      "kavlan-18": "2001:660:4406:8a0:702::7",
+      "kavlan-2": "2001:660:4406:781:2::7",
+      "kavlan-20": "2001:660:4406:3a0:702::7",
+      "kavlan-21": "2001:660:4406:6a0:702::7",
+      "kavlan-3": "2001:660:4406:782:2::7",
+      "kavlan-4": "2001:660:4406:790:2::7",
+      "kavlan-5": "2001:660:4406:791:2::7",
+      "kavlan-6": "2001:660:4406:792:2::7",
+      "kavlan-7": "2001:660:4406:793:2::7",
+      "kavlan-8": "2001:660:4406:794:2::7",
+      "kavlan-9": "2001:660:4406:795:2::7"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::7",
-      "kavlan-11": "2001:660:4406:1a0:702:1::7",
-      "kavlan-12": "2001:660:4406:2a0:702:1::7",
-      "kavlan-13": "2001:660:4406:4a0:702:1::7",
-      "kavlan-14": "2001:660:4406:5a0:702:1::7",
-      "kavlan-16": "2001:660:4406:7a0:702:1::7",
-      "kavlan-18": "2001:660:4406:8a0:702:1::7",
-      "kavlan-2": "2001:660:4406:781:2:1::7",
-      "kavlan-20": "2001:660:4406:3a0:702:1::7",
-      "kavlan-21": "2001:660:4406:6a0:702:1::7",
-      "kavlan-3": "2001:660:4406:782:2:1::7",
-      "kavlan-4": "2001:660:4406:790:2:1::7",
-      "kavlan-5": "2001:660:4406:791:2:1::7",
-      "kavlan-6": "2001:660:4406:792:2:1::7",
-      "kavlan-7": "2001:660:4406:793:2:1::7",
-      "kavlan-8": "2001:660:4406:794:2:1::7",
-      "kavlan-9": "2001:660:4406:795:2:1::7"
+      "kavlan-1": "2001:660:4406:780:2:1:0:7",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:7",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:7",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:7",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:7",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:7",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:7",
+      "kavlan-2": "2001:660:4406:781:2:1:0:7",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:7",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:7",
+      "kavlan-3": "2001:660:4406:782:2:1:0:7",
+      "kavlan-4": "2001:660:4406:790:2:1:0:7",
+      "kavlan-5": "2001:660:4406:791:2:1:0:7",
+      "kavlan-6": "2001:660:4406:792:2:1:0:7",
+      "kavlan-7": "2001:660:4406:793:2:1:0:7",
+      "kavlan-8": "2001:660:4406:794:2:1:0:7",
+      "kavlan-9": "2001:660:4406:795:2:1:0:7"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.7",
-      "ip6": "2001:660:4406:700:2:0::7",
+      "ip6": "2001:660:4406:700:2::7",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fc:38",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.107",
-      "ip6": "2001:660:4406:700:2:1::7",
+      "ip6": "2001:660:4406:700:2:1:0:7",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fc:3a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-8.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-8.json
index 927bb48124afc2af4e9eee6a1d542505dcfdfa11..1b812c23b6c437f634f2001264b22aa22ffb7cd4 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-8.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-8.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::8",
-      "kavlan-11": "2001:660:4406:1a0:702:0::8",
-      "kavlan-12": "2001:660:4406:2a0:702:0::8",
-      "kavlan-13": "2001:660:4406:4a0:702:0::8",
-      "kavlan-14": "2001:660:4406:5a0:702:0::8",
-      "kavlan-16": "2001:660:4406:7a0:702:0::8",
-      "kavlan-18": "2001:660:4406:8a0:702:0::8",
-      "kavlan-2": "2001:660:4406:781:2:0::8",
-      "kavlan-20": "2001:660:4406:3a0:702:0::8",
-      "kavlan-21": "2001:660:4406:6a0:702:0::8",
-      "kavlan-3": "2001:660:4406:782:2:0::8",
-      "kavlan-4": "2001:660:4406:790:2:0::8",
-      "kavlan-5": "2001:660:4406:791:2:0::8",
-      "kavlan-6": "2001:660:4406:792:2:0::8",
-      "kavlan-7": "2001:660:4406:793:2:0::8",
-      "kavlan-8": "2001:660:4406:794:2:0::8",
-      "kavlan-9": "2001:660:4406:795:2:0::8"
+      "kavlan-1": "2001:660:4406:780:2::8",
+      "kavlan-11": "2001:660:4406:1a0:702::8",
+      "kavlan-12": "2001:660:4406:2a0:702::8",
+      "kavlan-13": "2001:660:4406:4a0:702::8",
+      "kavlan-14": "2001:660:4406:5a0:702::8",
+      "kavlan-16": "2001:660:4406:7a0:702::8",
+      "kavlan-18": "2001:660:4406:8a0:702::8",
+      "kavlan-2": "2001:660:4406:781:2::8",
+      "kavlan-20": "2001:660:4406:3a0:702::8",
+      "kavlan-21": "2001:660:4406:6a0:702::8",
+      "kavlan-3": "2001:660:4406:782:2::8",
+      "kavlan-4": "2001:660:4406:790:2::8",
+      "kavlan-5": "2001:660:4406:791:2::8",
+      "kavlan-6": "2001:660:4406:792:2::8",
+      "kavlan-7": "2001:660:4406:793:2::8",
+      "kavlan-8": "2001:660:4406:794:2::8",
+      "kavlan-9": "2001:660:4406:795:2::8"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::8",
-      "kavlan-11": "2001:660:4406:1a0:702:1::8",
-      "kavlan-12": "2001:660:4406:2a0:702:1::8",
-      "kavlan-13": "2001:660:4406:4a0:702:1::8",
-      "kavlan-14": "2001:660:4406:5a0:702:1::8",
-      "kavlan-16": "2001:660:4406:7a0:702:1::8",
-      "kavlan-18": "2001:660:4406:8a0:702:1::8",
-      "kavlan-2": "2001:660:4406:781:2:1::8",
-      "kavlan-20": "2001:660:4406:3a0:702:1::8",
-      "kavlan-21": "2001:660:4406:6a0:702:1::8",
-      "kavlan-3": "2001:660:4406:782:2:1::8",
-      "kavlan-4": "2001:660:4406:790:2:1::8",
-      "kavlan-5": "2001:660:4406:791:2:1::8",
-      "kavlan-6": "2001:660:4406:792:2:1::8",
-      "kavlan-7": "2001:660:4406:793:2:1::8",
-      "kavlan-8": "2001:660:4406:794:2:1::8",
-      "kavlan-9": "2001:660:4406:795:2:1::8"
+      "kavlan-1": "2001:660:4406:780:2:1:0:8",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:8",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:8",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:8",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:8",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:8",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:8",
+      "kavlan-2": "2001:660:4406:781:2:1:0:8",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:8",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:8",
+      "kavlan-3": "2001:660:4406:782:2:1:0:8",
+      "kavlan-4": "2001:660:4406:790:2:1:0:8",
+      "kavlan-5": "2001:660:4406:791:2:1:0:8",
+      "kavlan-6": "2001:660:4406:792:2:1:0:8",
+      "kavlan-7": "2001:660:4406:793:2:1:0:8",
+      "kavlan-8": "2001:660:4406:794:2:1:0:8",
+      "kavlan-9": "2001:660:4406:795:2:1:0:8"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.8",
-      "ip6": "2001:660:4406:700:2:0::8",
+      "ip6": "2001:660:4406:700:2::8",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f2:48",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.108",
-      "ip6": "2001:660:4406:700:2:1::8",
+      "ip6": "2001:660:4406:700:2:1:0:8",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f2:4a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-9.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-9.json
index a54481ae649309ffdd7cb12f62f6534fa2fe2d4a..e813c3022a26975df08e48f73d693052dc4e8eae 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-9.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-9.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2:0::9",
-      "kavlan-11": "2001:660:4406:1a0:702:0::9",
-      "kavlan-12": "2001:660:4406:2a0:702:0::9",
-      "kavlan-13": "2001:660:4406:4a0:702:0::9",
-      "kavlan-14": "2001:660:4406:5a0:702:0::9",
-      "kavlan-16": "2001:660:4406:7a0:702:0::9",
-      "kavlan-18": "2001:660:4406:8a0:702:0::9",
-      "kavlan-2": "2001:660:4406:781:2:0::9",
-      "kavlan-20": "2001:660:4406:3a0:702:0::9",
-      "kavlan-21": "2001:660:4406:6a0:702:0::9",
-      "kavlan-3": "2001:660:4406:782:2:0::9",
-      "kavlan-4": "2001:660:4406:790:2:0::9",
-      "kavlan-5": "2001:660:4406:791:2:0::9",
-      "kavlan-6": "2001:660:4406:792:2:0::9",
-      "kavlan-7": "2001:660:4406:793:2:0::9",
-      "kavlan-8": "2001:660:4406:794:2:0::9",
-      "kavlan-9": "2001:660:4406:795:2:0::9"
+      "kavlan-1": "2001:660:4406:780:2::9",
+      "kavlan-11": "2001:660:4406:1a0:702::9",
+      "kavlan-12": "2001:660:4406:2a0:702::9",
+      "kavlan-13": "2001:660:4406:4a0:702::9",
+      "kavlan-14": "2001:660:4406:5a0:702::9",
+      "kavlan-16": "2001:660:4406:7a0:702::9",
+      "kavlan-18": "2001:660:4406:8a0:702::9",
+      "kavlan-2": "2001:660:4406:781:2::9",
+      "kavlan-20": "2001:660:4406:3a0:702::9",
+      "kavlan-21": "2001:660:4406:6a0:702::9",
+      "kavlan-3": "2001:660:4406:782:2::9",
+      "kavlan-4": "2001:660:4406:790:2::9",
+      "kavlan-5": "2001:660:4406:791:2::9",
+      "kavlan-6": "2001:660:4406:792:2::9",
+      "kavlan-7": "2001:660:4406:793:2::9",
+      "kavlan-8": "2001:660:4406:794:2::9",
+      "kavlan-9": "2001:660:4406:795:2::9"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:2:1::9",
-      "kavlan-11": "2001:660:4406:1a0:702:1::9",
-      "kavlan-12": "2001:660:4406:2a0:702:1::9",
-      "kavlan-13": "2001:660:4406:4a0:702:1::9",
-      "kavlan-14": "2001:660:4406:5a0:702:1::9",
-      "kavlan-16": "2001:660:4406:7a0:702:1::9",
-      "kavlan-18": "2001:660:4406:8a0:702:1::9",
-      "kavlan-2": "2001:660:4406:781:2:1::9",
-      "kavlan-20": "2001:660:4406:3a0:702:1::9",
-      "kavlan-21": "2001:660:4406:6a0:702:1::9",
-      "kavlan-3": "2001:660:4406:782:2:1::9",
-      "kavlan-4": "2001:660:4406:790:2:1::9",
-      "kavlan-5": "2001:660:4406:791:2:1::9",
-      "kavlan-6": "2001:660:4406:792:2:1::9",
-      "kavlan-7": "2001:660:4406:793:2:1::9",
-      "kavlan-8": "2001:660:4406:794:2:1::9",
-      "kavlan-9": "2001:660:4406:795:2:1::9"
+      "kavlan-1": "2001:660:4406:780:2:1:0:9",
+      "kavlan-11": "2001:660:4406:1a0:702:1:0:9",
+      "kavlan-12": "2001:660:4406:2a0:702:1:0:9",
+      "kavlan-13": "2001:660:4406:4a0:702:1:0:9",
+      "kavlan-14": "2001:660:4406:5a0:702:1:0:9",
+      "kavlan-16": "2001:660:4406:7a0:702:1:0:9",
+      "kavlan-18": "2001:660:4406:8a0:702:1:0:9",
+      "kavlan-2": "2001:660:4406:781:2:1:0:9",
+      "kavlan-20": "2001:660:4406:3a0:702:1:0:9",
+      "kavlan-21": "2001:660:4406:6a0:702:1:0:9",
+      "kavlan-3": "2001:660:4406:782:2:1:0:9",
+      "kavlan-4": "2001:660:4406:790:2:1:0:9",
+      "kavlan-5": "2001:660:4406:791:2:1:0:9",
+      "kavlan-6": "2001:660:4406:792:2:1:0:9",
+      "kavlan-7": "2001:660:4406:793:2:1:0:9",
+      "kavlan-8": "2001:660:4406:794:2:1:0:9",
+      "kavlan-9": "2001:660:4406:795:2:1:0:9"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.9",
-      "ip6": "2001:660:4406:700:2:0::9",
+      "ip6": "2001:660:4406:700:2::9",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f0:b8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.109",
-      "ip6": "2001:660:4406:700:2:1::9",
+      "ip6": "2001:660:4406:700:2:1:0:9",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f0:ba",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-1.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-1.json
index d1130a39cc4c3ac8b87a3e3a737b5d71f189260b..1a93f08909ff0ea889294b8df5f1780bcdb5a7fd 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-1.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-1.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::1",
-      "kavlan-11": "2001:660:4406:1a0:701:0::1",
-      "kavlan-12": "2001:660:4406:2a0:701:0::1",
-      "kavlan-13": "2001:660:4406:4a0:701:0::1",
-      "kavlan-14": "2001:660:4406:5a0:701:0::1",
-      "kavlan-16": "2001:660:4406:7a0:701:0::1",
-      "kavlan-18": "2001:660:4406:8a0:701:0::1",
-      "kavlan-2": "2001:660:4406:781:1:0::1",
-      "kavlan-20": "2001:660:4406:3a0:701:0::1",
-      "kavlan-21": "2001:660:4406:6a0:701:0::1",
-      "kavlan-3": "2001:660:4406:782:1:0::1",
-      "kavlan-4": "2001:660:4406:790:1:0::1",
-      "kavlan-5": "2001:660:4406:791:1:0::1",
-      "kavlan-6": "2001:660:4406:792:1:0::1",
-      "kavlan-7": "2001:660:4406:793:1:0::1",
-      "kavlan-8": "2001:660:4406:794:1:0::1",
-      "kavlan-9": "2001:660:4406:795:1:0::1"
+      "kavlan-1": "2001:660:4406:780:1::1",
+      "kavlan-11": "2001:660:4406:1a0:701::1",
+      "kavlan-12": "2001:660:4406:2a0:701::1",
+      "kavlan-13": "2001:660:4406:4a0:701::1",
+      "kavlan-14": "2001:660:4406:5a0:701::1",
+      "kavlan-16": "2001:660:4406:7a0:701::1",
+      "kavlan-18": "2001:660:4406:8a0:701::1",
+      "kavlan-2": "2001:660:4406:781:1::1",
+      "kavlan-20": "2001:660:4406:3a0:701::1",
+      "kavlan-21": "2001:660:4406:6a0:701::1",
+      "kavlan-3": "2001:660:4406:782:1::1",
+      "kavlan-4": "2001:660:4406:790:1::1",
+      "kavlan-5": "2001:660:4406:791:1::1",
+      "kavlan-6": "2001:660:4406:792:1::1",
+      "kavlan-7": "2001:660:4406:793:1::1",
+      "kavlan-8": "2001:660:4406:794:1::1",
+      "kavlan-9": "2001:660:4406:795:1::1"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::1",
-      "kavlan-11": "2001:660:4406:1a0:701:1::1",
-      "kavlan-12": "2001:660:4406:2a0:701:1::1",
-      "kavlan-13": "2001:660:4406:4a0:701:1::1",
-      "kavlan-14": "2001:660:4406:5a0:701:1::1",
-      "kavlan-16": "2001:660:4406:7a0:701:1::1",
-      "kavlan-18": "2001:660:4406:8a0:701:1::1",
-      "kavlan-2": "2001:660:4406:781:1:1::1",
-      "kavlan-20": "2001:660:4406:3a0:701:1::1",
-      "kavlan-21": "2001:660:4406:6a0:701:1::1",
-      "kavlan-3": "2001:660:4406:782:1:1::1",
-      "kavlan-4": "2001:660:4406:790:1:1::1",
-      "kavlan-5": "2001:660:4406:791:1:1::1",
-      "kavlan-6": "2001:660:4406:792:1:1::1",
-      "kavlan-7": "2001:660:4406:793:1:1::1",
-      "kavlan-8": "2001:660:4406:794:1:1::1",
-      "kavlan-9": "2001:660:4406:795:1:1::1"
+      "kavlan-1": "2001:660:4406:780:1:1:0:1",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:1",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:1",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:1",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:1",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:1",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:1",
+      "kavlan-2": "2001:660:4406:781:1:1:0:1",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:1",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:1",
+      "kavlan-3": "2001:660:4406:782:1:1:0:1",
+      "kavlan-4": "2001:660:4406:790:1:1:0:1",
+      "kavlan-5": "2001:660:4406:791:1:1:0:1",
+      "kavlan-6": "2001:660:4406:792:1:1:0:1",
+      "kavlan-7": "2001:660:4406:793:1:1:0:1",
+      "kavlan-8": "2001:660:4406:794:1:1:0:1",
+      "kavlan-9": "2001:660:4406:795:1:1:0:1"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.1",
-      "ip6": "2001:660:4406:700:1:0::1",
+      "ip6": "2001:660:4406:700:1::1",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fb:20",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.101",
-      "ip6": "2001:660:4406:700:1:1::1",
+      "ip6": "2001:660:4406:700:1:1:0:1",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fb:22",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-10.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-10.json
index 280489d9286b98e4795781d7fac969cb523ea077..11b849f8b87bdfa449f3770dfcb06ea70a7c4905 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-10.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-10.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::a",
-      "kavlan-11": "2001:660:4406:1a0:701:0::a",
-      "kavlan-12": "2001:660:4406:2a0:701:0::a",
-      "kavlan-13": "2001:660:4406:4a0:701:0::a",
-      "kavlan-14": "2001:660:4406:5a0:701:0::a",
-      "kavlan-16": "2001:660:4406:7a0:701:0::a",
-      "kavlan-18": "2001:660:4406:8a0:701:0::a",
-      "kavlan-2": "2001:660:4406:781:1:0::a",
-      "kavlan-20": "2001:660:4406:3a0:701:0::a",
-      "kavlan-21": "2001:660:4406:6a0:701:0::a",
-      "kavlan-3": "2001:660:4406:782:1:0::a",
-      "kavlan-4": "2001:660:4406:790:1:0::a",
-      "kavlan-5": "2001:660:4406:791:1:0::a",
-      "kavlan-6": "2001:660:4406:792:1:0::a",
-      "kavlan-7": "2001:660:4406:793:1:0::a",
-      "kavlan-8": "2001:660:4406:794:1:0::a",
-      "kavlan-9": "2001:660:4406:795:1:0::a"
+      "kavlan-1": "2001:660:4406:780:1::a",
+      "kavlan-11": "2001:660:4406:1a0:701::a",
+      "kavlan-12": "2001:660:4406:2a0:701::a",
+      "kavlan-13": "2001:660:4406:4a0:701::a",
+      "kavlan-14": "2001:660:4406:5a0:701::a",
+      "kavlan-16": "2001:660:4406:7a0:701::a",
+      "kavlan-18": "2001:660:4406:8a0:701::a",
+      "kavlan-2": "2001:660:4406:781:1::a",
+      "kavlan-20": "2001:660:4406:3a0:701::a",
+      "kavlan-21": "2001:660:4406:6a0:701::a",
+      "kavlan-3": "2001:660:4406:782:1::a",
+      "kavlan-4": "2001:660:4406:790:1::a",
+      "kavlan-5": "2001:660:4406:791:1::a",
+      "kavlan-6": "2001:660:4406:792:1::a",
+      "kavlan-7": "2001:660:4406:793:1::a",
+      "kavlan-8": "2001:660:4406:794:1::a",
+      "kavlan-9": "2001:660:4406:795:1::a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::a",
-      "kavlan-11": "2001:660:4406:1a0:701:1::a",
-      "kavlan-12": "2001:660:4406:2a0:701:1::a",
-      "kavlan-13": "2001:660:4406:4a0:701:1::a",
-      "kavlan-14": "2001:660:4406:5a0:701:1::a",
-      "kavlan-16": "2001:660:4406:7a0:701:1::a",
-      "kavlan-18": "2001:660:4406:8a0:701:1::a",
-      "kavlan-2": "2001:660:4406:781:1:1::a",
-      "kavlan-20": "2001:660:4406:3a0:701:1::a",
-      "kavlan-21": "2001:660:4406:6a0:701:1::a",
-      "kavlan-3": "2001:660:4406:782:1:1::a",
-      "kavlan-4": "2001:660:4406:790:1:1::a",
-      "kavlan-5": "2001:660:4406:791:1:1::a",
-      "kavlan-6": "2001:660:4406:792:1:1::a",
-      "kavlan-7": "2001:660:4406:793:1:1::a",
-      "kavlan-8": "2001:660:4406:794:1:1::a",
-      "kavlan-9": "2001:660:4406:795:1:1::a"
+      "kavlan-1": "2001:660:4406:780:1:1:0:a",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:a",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:a",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:a",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:a",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:a",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:a",
+      "kavlan-2": "2001:660:4406:781:1:1:0:a",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:a",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:a",
+      "kavlan-3": "2001:660:4406:782:1:1:0:a",
+      "kavlan-4": "2001:660:4406:790:1:1:0:a",
+      "kavlan-5": "2001:660:4406:791:1:1:0:a",
+      "kavlan-6": "2001:660:4406:792:1:1:0:a",
+      "kavlan-7": "2001:660:4406:793:1:1:0:a",
+      "kavlan-8": "2001:660:4406:794:1:1:0:a",
+      "kavlan-9": "2001:660:4406:795:1:1:0:a"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.10",
-      "ip6": "2001:660:4406:700:1:0::a",
+      "ip6": "2001:660:4406:700:1::a",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fa:b0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.110",
-      "ip6": "2001:660:4406:700:1:1::a",
+      "ip6": "2001:660:4406:700:1:1:0:a",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fa:b2",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-11.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-11.json
index a071625428ebc80cde73ef3084420a7b0f701d19..5d398afae0dd843c4ba16434f736d0c0b2285688 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-11.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-11.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::b",
-      "kavlan-11": "2001:660:4406:1a0:701:0::b",
-      "kavlan-12": "2001:660:4406:2a0:701:0::b",
-      "kavlan-13": "2001:660:4406:4a0:701:0::b",
-      "kavlan-14": "2001:660:4406:5a0:701:0::b",
-      "kavlan-16": "2001:660:4406:7a0:701:0::b",
-      "kavlan-18": "2001:660:4406:8a0:701:0::b",
-      "kavlan-2": "2001:660:4406:781:1:0::b",
-      "kavlan-20": "2001:660:4406:3a0:701:0::b",
-      "kavlan-21": "2001:660:4406:6a0:701:0::b",
-      "kavlan-3": "2001:660:4406:782:1:0::b",
-      "kavlan-4": "2001:660:4406:790:1:0::b",
-      "kavlan-5": "2001:660:4406:791:1:0::b",
-      "kavlan-6": "2001:660:4406:792:1:0::b",
-      "kavlan-7": "2001:660:4406:793:1:0::b",
-      "kavlan-8": "2001:660:4406:794:1:0::b",
-      "kavlan-9": "2001:660:4406:795:1:0::b"
+      "kavlan-1": "2001:660:4406:780:1::b",
+      "kavlan-11": "2001:660:4406:1a0:701::b",
+      "kavlan-12": "2001:660:4406:2a0:701::b",
+      "kavlan-13": "2001:660:4406:4a0:701::b",
+      "kavlan-14": "2001:660:4406:5a0:701::b",
+      "kavlan-16": "2001:660:4406:7a0:701::b",
+      "kavlan-18": "2001:660:4406:8a0:701::b",
+      "kavlan-2": "2001:660:4406:781:1::b",
+      "kavlan-20": "2001:660:4406:3a0:701::b",
+      "kavlan-21": "2001:660:4406:6a0:701::b",
+      "kavlan-3": "2001:660:4406:782:1::b",
+      "kavlan-4": "2001:660:4406:790:1::b",
+      "kavlan-5": "2001:660:4406:791:1::b",
+      "kavlan-6": "2001:660:4406:792:1::b",
+      "kavlan-7": "2001:660:4406:793:1::b",
+      "kavlan-8": "2001:660:4406:794:1::b",
+      "kavlan-9": "2001:660:4406:795:1::b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::b",
-      "kavlan-11": "2001:660:4406:1a0:701:1::b",
-      "kavlan-12": "2001:660:4406:2a0:701:1::b",
-      "kavlan-13": "2001:660:4406:4a0:701:1::b",
-      "kavlan-14": "2001:660:4406:5a0:701:1::b",
-      "kavlan-16": "2001:660:4406:7a0:701:1::b",
-      "kavlan-18": "2001:660:4406:8a0:701:1::b",
-      "kavlan-2": "2001:660:4406:781:1:1::b",
-      "kavlan-20": "2001:660:4406:3a0:701:1::b",
-      "kavlan-21": "2001:660:4406:6a0:701:1::b",
-      "kavlan-3": "2001:660:4406:782:1:1::b",
-      "kavlan-4": "2001:660:4406:790:1:1::b",
-      "kavlan-5": "2001:660:4406:791:1:1::b",
-      "kavlan-6": "2001:660:4406:792:1:1::b",
-      "kavlan-7": "2001:660:4406:793:1:1::b",
-      "kavlan-8": "2001:660:4406:794:1:1::b",
-      "kavlan-9": "2001:660:4406:795:1:1::b"
+      "kavlan-1": "2001:660:4406:780:1:1:0:b",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:b",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:b",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:b",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:b",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:b",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:b",
+      "kavlan-2": "2001:660:4406:781:1:1:0:b",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:b",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:b",
+      "kavlan-3": "2001:660:4406:782:1:1:0:b",
+      "kavlan-4": "2001:660:4406:790:1:1:0:b",
+      "kavlan-5": "2001:660:4406:791:1:1:0:b",
+      "kavlan-6": "2001:660:4406:792:1:1:0:b",
+      "kavlan-7": "2001:660:4406:793:1:1:0:b",
+      "kavlan-8": "2001:660:4406:794:1:1:0:b",
+      "kavlan-9": "2001:660:4406:795:1:1:0:b"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.11",
-      "ip6": "2001:660:4406:700:1:0::b",
+      "ip6": "2001:660:4406:700:1::b",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fa:48",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.111",
-      "ip6": "2001:660:4406:700:1:1::b",
+      "ip6": "2001:660:4406:700:1:1:0:b",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fa:4a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-12.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-12.json
index 1cb1517a276576288eb642ae5d36efed3eec5d58..280d1c172f9141b61db0d09b481829b2d5d5edbb 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-12.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-12.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::c",
-      "kavlan-11": "2001:660:4406:1a0:701:0::c",
-      "kavlan-12": "2001:660:4406:2a0:701:0::c",
-      "kavlan-13": "2001:660:4406:4a0:701:0::c",
-      "kavlan-14": "2001:660:4406:5a0:701:0::c",
-      "kavlan-16": "2001:660:4406:7a0:701:0::c",
-      "kavlan-18": "2001:660:4406:8a0:701:0::c",
-      "kavlan-2": "2001:660:4406:781:1:0::c",
-      "kavlan-20": "2001:660:4406:3a0:701:0::c",
-      "kavlan-21": "2001:660:4406:6a0:701:0::c",
-      "kavlan-3": "2001:660:4406:782:1:0::c",
-      "kavlan-4": "2001:660:4406:790:1:0::c",
-      "kavlan-5": "2001:660:4406:791:1:0::c",
-      "kavlan-6": "2001:660:4406:792:1:0::c",
-      "kavlan-7": "2001:660:4406:793:1:0::c",
-      "kavlan-8": "2001:660:4406:794:1:0::c",
-      "kavlan-9": "2001:660:4406:795:1:0::c"
+      "kavlan-1": "2001:660:4406:780:1::c",
+      "kavlan-11": "2001:660:4406:1a0:701::c",
+      "kavlan-12": "2001:660:4406:2a0:701::c",
+      "kavlan-13": "2001:660:4406:4a0:701::c",
+      "kavlan-14": "2001:660:4406:5a0:701::c",
+      "kavlan-16": "2001:660:4406:7a0:701::c",
+      "kavlan-18": "2001:660:4406:8a0:701::c",
+      "kavlan-2": "2001:660:4406:781:1::c",
+      "kavlan-20": "2001:660:4406:3a0:701::c",
+      "kavlan-21": "2001:660:4406:6a0:701::c",
+      "kavlan-3": "2001:660:4406:782:1::c",
+      "kavlan-4": "2001:660:4406:790:1::c",
+      "kavlan-5": "2001:660:4406:791:1::c",
+      "kavlan-6": "2001:660:4406:792:1::c",
+      "kavlan-7": "2001:660:4406:793:1::c",
+      "kavlan-8": "2001:660:4406:794:1::c",
+      "kavlan-9": "2001:660:4406:795:1::c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::c",
-      "kavlan-11": "2001:660:4406:1a0:701:1::c",
-      "kavlan-12": "2001:660:4406:2a0:701:1::c",
-      "kavlan-13": "2001:660:4406:4a0:701:1::c",
-      "kavlan-14": "2001:660:4406:5a0:701:1::c",
-      "kavlan-16": "2001:660:4406:7a0:701:1::c",
-      "kavlan-18": "2001:660:4406:8a0:701:1::c",
-      "kavlan-2": "2001:660:4406:781:1:1::c",
-      "kavlan-20": "2001:660:4406:3a0:701:1::c",
-      "kavlan-21": "2001:660:4406:6a0:701:1::c",
-      "kavlan-3": "2001:660:4406:782:1:1::c",
-      "kavlan-4": "2001:660:4406:790:1:1::c",
-      "kavlan-5": "2001:660:4406:791:1:1::c",
-      "kavlan-6": "2001:660:4406:792:1:1::c",
-      "kavlan-7": "2001:660:4406:793:1:1::c",
-      "kavlan-8": "2001:660:4406:794:1:1::c",
-      "kavlan-9": "2001:660:4406:795:1:1::c"
+      "kavlan-1": "2001:660:4406:780:1:1:0:c",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:c",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:c",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:c",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:c",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:c",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:c",
+      "kavlan-2": "2001:660:4406:781:1:1:0:c",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:c",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:c",
+      "kavlan-3": "2001:660:4406:782:1:1:0:c",
+      "kavlan-4": "2001:660:4406:790:1:1:0:c",
+      "kavlan-5": "2001:660:4406:791:1:1:0:c",
+      "kavlan-6": "2001:660:4406:792:1:1:0:c",
+      "kavlan-7": "2001:660:4406:793:1:1:0:c",
+      "kavlan-8": "2001:660:4406:794:1:1:0:c",
+      "kavlan-9": "2001:660:4406:795:1:1:0:c"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.12",
-      "ip6": "2001:660:4406:700:1:0::c",
+      "ip6": "2001:660:4406:700:1::c",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:20",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.112",
-      "ip6": "2001:660:4406:700:1:1::c",
+      "ip6": "2001:660:4406:700:1:1:0:c",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:22",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-13.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-13.json
index 29e4b623ae4b5ed9e7978956bddbd3e5b0d1abac..a4e5e4a73ca5c1bd6cc43380052566d38c6b23d1 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-13.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-13.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::d",
-      "kavlan-11": "2001:660:4406:1a0:701:0::d",
-      "kavlan-12": "2001:660:4406:2a0:701:0::d",
-      "kavlan-13": "2001:660:4406:4a0:701:0::d",
-      "kavlan-14": "2001:660:4406:5a0:701:0::d",
-      "kavlan-16": "2001:660:4406:7a0:701:0::d",
-      "kavlan-18": "2001:660:4406:8a0:701:0::d",
-      "kavlan-2": "2001:660:4406:781:1:0::d",
-      "kavlan-20": "2001:660:4406:3a0:701:0::d",
-      "kavlan-21": "2001:660:4406:6a0:701:0::d",
-      "kavlan-3": "2001:660:4406:782:1:0::d",
-      "kavlan-4": "2001:660:4406:790:1:0::d",
-      "kavlan-5": "2001:660:4406:791:1:0::d",
-      "kavlan-6": "2001:660:4406:792:1:0::d",
-      "kavlan-7": "2001:660:4406:793:1:0::d",
-      "kavlan-8": "2001:660:4406:794:1:0::d",
-      "kavlan-9": "2001:660:4406:795:1:0::d"
+      "kavlan-1": "2001:660:4406:780:1::d",
+      "kavlan-11": "2001:660:4406:1a0:701::d",
+      "kavlan-12": "2001:660:4406:2a0:701::d",
+      "kavlan-13": "2001:660:4406:4a0:701::d",
+      "kavlan-14": "2001:660:4406:5a0:701::d",
+      "kavlan-16": "2001:660:4406:7a0:701::d",
+      "kavlan-18": "2001:660:4406:8a0:701::d",
+      "kavlan-2": "2001:660:4406:781:1::d",
+      "kavlan-20": "2001:660:4406:3a0:701::d",
+      "kavlan-21": "2001:660:4406:6a0:701::d",
+      "kavlan-3": "2001:660:4406:782:1::d",
+      "kavlan-4": "2001:660:4406:790:1::d",
+      "kavlan-5": "2001:660:4406:791:1::d",
+      "kavlan-6": "2001:660:4406:792:1::d",
+      "kavlan-7": "2001:660:4406:793:1::d",
+      "kavlan-8": "2001:660:4406:794:1::d",
+      "kavlan-9": "2001:660:4406:795:1::d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::d",
-      "kavlan-11": "2001:660:4406:1a0:701:1::d",
-      "kavlan-12": "2001:660:4406:2a0:701:1::d",
-      "kavlan-13": "2001:660:4406:4a0:701:1::d",
-      "kavlan-14": "2001:660:4406:5a0:701:1::d",
-      "kavlan-16": "2001:660:4406:7a0:701:1::d",
-      "kavlan-18": "2001:660:4406:8a0:701:1::d",
-      "kavlan-2": "2001:660:4406:781:1:1::d",
-      "kavlan-20": "2001:660:4406:3a0:701:1::d",
-      "kavlan-21": "2001:660:4406:6a0:701:1::d",
-      "kavlan-3": "2001:660:4406:782:1:1::d",
-      "kavlan-4": "2001:660:4406:790:1:1::d",
-      "kavlan-5": "2001:660:4406:791:1:1::d",
-      "kavlan-6": "2001:660:4406:792:1:1::d",
-      "kavlan-7": "2001:660:4406:793:1:1::d",
-      "kavlan-8": "2001:660:4406:794:1:1::d",
-      "kavlan-9": "2001:660:4406:795:1:1::d"
+      "kavlan-1": "2001:660:4406:780:1:1:0:d",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:d",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:d",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:d",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:d",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:d",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:d",
+      "kavlan-2": "2001:660:4406:781:1:1:0:d",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:d",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:d",
+      "kavlan-3": "2001:660:4406:782:1:1:0:d",
+      "kavlan-4": "2001:660:4406:790:1:1:0:d",
+      "kavlan-5": "2001:660:4406:791:1:1:0:d",
+      "kavlan-6": "2001:660:4406:792:1:1:0:d",
+      "kavlan-7": "2001:660:4406:793:1:1:0:d",
+      "kavlan-8": "2001:660:4406:794:1:1:0:d",
+      "kavlan-9": "2001:660:4406:795:1:1:0:d"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.13",
-      "ip6": "2001:660:4406:700:1:0::d",
+      "ip6": "2001:660:4406:700:1::d",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:60",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.113",
-      "ip6": "2001:660:4406:700:1:1::d",
+      "ip6": "2001:660:4406:700:1:1:0:d",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:62",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-14.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-14.json
index bdf9fbfa93ade615a47530ce348c951a4f954600..16e0575dc44320c6efdcbcd8eaaf9c48cf64fa24 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-14.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-14.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::e",
-      "kavlan-11": "2001:660:4406:1a0:701:0::e",
-      "kavlan-12": "2001:660:4406:2a0:701:0::e",
-      "kavlan-13": "2001:660:4406:4a0:701:0::e",
-      "kavlan-14": "2001:660:4406:5a0:701:0::e",
-      "kavlan-16": "2001:660:4406:7a0:701:0::e",
-      "kavlan-18": "2001:660:4406:8a0:701:0::e",
-      "kavlan-2": "2001:660:4406:781:1:0::e",
-      "kavlan-20": "2001:660:4406:3a0:701:0::e",
-      "kavlan-21": "2001:660:4406:6a0:701:0::e",
-      "kavlan-3": "2001:660:4406:782:1:0::e",
-      "kavlan-4": "2001:660:4406:790:1:0::e",
-      "kavlan-5": "2001:660:4406:791:1:0::e",
-      "kavlan-6": "2001:660:4406:792:1:0::e",
-      "kavlan-7": "2001:660:4406:793:1:0::e",
-      "kavlan-8": "2001:660:4406:794:1:0::e",
-      "kavlan-9": "2001:660:4406:795:1:0::e"
+      "kavlan-1": "2001:660:4406:780:1::e",
+      "kavlan-11": "2001:660:4406:1a0:701::e",
+      "kavlan-12": "2001:660:4406:2a0:701::e",
+      "kavlan-13": "2001:660:4406:4a0:701::e",
+      "kavlan-14": "2001:660:4406:5a0:701::e",
+      "kavlan-16": "2001:660:4406:7a0:701::e",
+      "kavlan-18": "2001:660:4406:8a0:701::e",
+      "kavlan-2": "2001:660:4406:781:1::e",
+      "kavlan-20": "2001:660:4406:3a0:701::e",
+      "kavlan-21": "2001:660:4406:6a0:701::e",
+      "kavlan-3": "2001:660:4406:782:1::e",
+      "kavlan-4": "2001:660:4406:790:1::e",
+      "kavlan-5": "2001:660:4406:791:1::e",
+      "kavlan-6": "2001:660:4406:792:1::e",
+      "kavlan-7": "2001:660:4406:793:1::e",
+      "kavlan-8": "2001:660:4406:794:1::e",
+      "kavlan-9": "2001:660:4406:795:1::e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::e",
-      "kavlan-11": "2001:660:4406:1a0:701:1::e",
-      "kavlan-12": "2001:660:4406:2a0:701:1::e",
-      "kavlan-13": "2001:660:4406:4a0:701:1::e",
-      "kavlan-14": "2001:660:4406:5a0:701:1::e",
-      "kavlan-16": "2001:660:4406:7a0:701:1::e",
-      "kavlan-18": "2001:660:4406:8a0:701:1::e",
-      "kavlan-2": "2001:660:4406:781:1:1::e",
-      "kavlan-20": "2001:660:4406:3a0:701:1::e",
-      "kavlan-21": "2001:660:4406:6a0:701:1::e",
-      "kavlan-3": "2001:660:4406:782:1:1::e",
-      "kavlan-4": "2001:660:4406:790:1:1::e",
-      "kavlan-5": "2001:660:4406:791:1:1::e",
-      "kavlan-6": "2001:660:4406:792:1:1::e",
-      "kavlan-7": "2001:660:4406:793:1:1::e",
-      "kavlan-8": "2001:660:4406:794:1:1::e",
-      "kavlan-9": "2001:660:4406:795:1:1::e"
+      "kavlan-1": "2001:660:4406:780:1:1:0:e",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:e",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:e",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:e",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:e",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:e",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:e",
+      "kavlan-2": "2001:660:4406:781:1:1:0:e",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:e",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:e",
+      "kavlan-3": "2001:660:4406:782:1:1:0:e",
+      "kavlan-4": "2001:660:4406:790:1:1:0:e",
+      "kavlan-5": "2001:660:4406:791:1:1:0:e",
+      "kavlan-6": "2001:660:4406:792:1:1:0:e",
+      "kavlan-7": "2001:660:4406:793:1:1:0:e",
+      "kavlan-8": "2001:660:4406:794:1:1:0:e",
+      "kavlan-9": "2001:660:4406:795:1:1:0:e"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.14",
-      "ip6": "2001:660:4406:700:1:0::e",
+      "ip6": "2001:660:4406:700:1::e",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:58",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.114",
-      "ip6": "2001:660:4406:700:1:1::e",
+      "ip6": "2001:660:4406:700:1:1:0:e",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:5a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-15.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-15.json
index 5b8309a468f3d3669ca6b5b9dbb2ca2b2632bf42..e08629a1e6a5a83df2b1efa2140bcf84bf4261c4 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-15.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-15.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::f",
-      "kavlan-11": "2001:660:4406:1a0:701:0::f",
-      "kavlan-12": "2001:660:4406:2a0:701:0::f",
-      "kavlan-13": "2001:660:4406:4a0:701:0::f",
-      "kavlan-14": "2001:660:4406:5a0:701:0::f",
-      "kavlan-16": "2001:660:4406:7a0:701:0::f",
-      "kavlan-18": "2001:660:4406:8a0:701:0::f",
-      "kavlan-2": "2001:660:4406:781:1:0::f",
-      "kavlan-20": "2001:660:4406:3a0:701:0::f",
-      "kavlan-21": "2001:660:4406:6a0:701:0::f",
-      "kavlan-3": "2001:660:4406:782:1:0::f",
-      "kavlan-4": "2001:660:4406:790:1:0::f",
-      "kavlan-5": "2001:660:4406:791:1:0::f",
-      "kavlan-6": "2001:660:4406:792:1:0::f",
-      "kavlan-7": "2001:660:4406:793:1:0::f",
-      "kavlan-8": "2001:660:4406:794:1:0::f",
-      "kavlan-9": "2001:660:4406:795:1:0::f"
+      "kavlan-1": "2001:660:4406:780:1::f",
+      "kavlan-11": "2001:660:4406:1a0:701::f",
+      "kavlan-12": "2001:660:4406:2a0:701::f",
+      "kavlan-13": "2001:660:4406:4a0:701::f",
+      "kavlan-14": "2001:660:4406:5a0:701::f",
+      "kavlan-16": "2001:660:4406:7a0:701::f",
+      "kavlan-18": "2001:660:4406:8a0:701::f",
+      "kavlan-2": "2001:660:4406:781:1::f",
+      "kavlan-20": "2001:660:4406:3a0:701::f",
+      "kavlan-21": "2001:660:4406:6a0:701::f",
+      "kavlan-3": "2001:660:4406:782:1::f",
+      "kavlan-4": "2001:660:4406:790:1::f",
+      "kavlan-5": "2001:660:4406:791:1::f",
+      "kavlan-6": "2001:660:4406:792:1::f",
+      "kavlan-7": "2001:660:4406:793:1::f",
+      "kavlan-8": "2001:660:4406:794:1::f",
+      "kavlan-9": "2001:660:4406:795:1::f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::f",
-      "kavlan-11": "2001:660:4406:1a0:701:1::f",
-      "kavlan-12": "2001:660:4406:2a0:701:1::f",
-      "kavlan-13": "2001:660:4406:4a0:701:1::f",
-      "kavlan-14": "2001:660:4406:5a0:701:1::f",
-      "kavlan-16": "2001:660:4406:7a0:701:1::f",
-      "kavlan-18": "2001:660:4406:8a0:701:1::f",
-      "kavlan-2": "2001:660:4406:781:1:1::f",
-      "kavlan-20": "2001:660:4406:3a0:701:1::f",
-      "kavlan-21": "2001:660:4406:6a0:701:1::f",
-      "kavlan-3": "2001:660:4406:782:1:1::f",
-      "kavlan-4": "2001:660:4406:790:1:1::f",
-      "kavlan-5": "2001:660:4406:791:1:1::f",
-      "kavlan-6": "2001:660:4406:792:1:1::f",
-      "kavlan-7": "2001:660:4406:793:1:1::f",
-      "kavlan-8": "2001:660:4406:794:1:1::f",
-      "kavlan-9": "2001:660:4406:795:1:1::f"
+      "kavlan-1": "2001:660:4406:780:1:1:0:f",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:f",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:f",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:f",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:f",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:f",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:f",
+      "kavlan-2": "2001:660:4406:781:1:1:0:f",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:f",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:f",
+      "kavlan-3": "2001:660:4406:782:1:1:0:f",
+      "kavlan-4": "2001:660:4406:790:1:1:0:f",
+      "kavlan-5": "2001:660:4406:791:1:1:0:f",
+      "kavlan-6": "2001:660:4406:792:1:1:0:f",
+      "kavlan-7": "2001:660:4406:793:1:1:0:f",
+      "kavlan-8": "2001:660:4406:794:1:1:0:f",
+      "kavlan-9": "2001:660:4406:795:1:1:0:f"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.15",
-      "ip6": "2001:660:4406:700:1:0::f",
+      "ip6": "2001:660:4406:700:1::f",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fe:90",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.115",
-      "ip6": "2001:660:4406:700:1:1::f",
+      "ip6": "2001:660:4406:700:1:1:0:f",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fe:92",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-16.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-16.json
index 43db2ab2be5e9184867647fda86c60e5afd0409a..02a6cdd57aecedcfed5cdca71037c14ecfba12ef 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-16.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-16.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::10",
-      "kavlan-11": "2001:660:4406:1a0:701:0::10",
-      "kavlan-12": "2001:660:4406:2a0:701:0::10",
-      "kavlan-13": "2001:660:4406:4a0:701:0::10",
-      "kavlan-14": "2001:660:4406:5a0:701:0::10",
-      "kavlan-16": "2001:660:4406:7a0:701:0::10",
-      "kavlan-18": "2001:660:4406:8a0:701:0::10",
-      "kavlan-2": "2001:660:4406:781:1:0::10",
-      "kavlan-20": "2001:660:4406:3a0:701:0::10",
-      "kavlan-21": "2001:660:4406:6a0:701:0::10",
-      "kavlan-3": "2001:660:4406:782:1:0::10",
-      "kavlan-4": "2001:660:4406:790:1:0::10",
-      "kavlan-5": "2001:660:4406:791:1:0::10",
-      "kavlan-6": "2001:660:4406:792:1:0::10",
-      "kavlan-7": "2001:660:4406:793:1:0::10",
-      "kavlan-8": "2001:660:4406:794:1:0::10",
-      "kavlan-9": "2001:660:4406:795:1:0::10"
+      "kavlan-1": "2001:660:4406:780:1::10",
+      "kavlan-11": "2001:660:4406:1a0:701::10",
+      "kavlan-12": "2001:660:4406:2a0:701::10",
+      "kavlan-13": "2001:660:4406:4a0:701::10",
+      "kavlan-14": "2001:660:4406:5a0:701::10",
+      "kavlan-16": "2001:660:4406:7a0:701::10",
+      "kavlan-18": "2001:660:4406:8a0:701::10",
+      "kavlan-2": "2001:660:4406:781:1::10",
+      "kavlan-20": "2001:660:4406:3a0:701::10",
+      "kavlan-21": "2001:660:4406:6a0:701::10",
+      "kavlan-3": "2001:660:4406:782:1::10",
+      "kavlan-4": "2001:660:4406:790:1::10",
+      "kavlan-5": "2001:660:4406:791:1::10",
+      "kavlan-6": "2001:660:4406:792:1::10",
+      "kavlan-7": "2001:660:4406:793:1::10",
+      "kavlan-8": "2001:660:4406:794:1::10",
+      "kavlan-9": "2001:660:4406:795:1::10"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::10",
-      "kavlan-11": "2001:660:4406:1a0:701:1::10",
-      "kavlan-12": "2001:660:4406:2a0:701:1::10",
-      "kavlan-13": "2001:660:4406:4a0:701:1::10",
-      "kavlan-14": "2001:660:4406:5a0:701:1::10",
-      "kavlan-16": "2001:660:4406:7a0:701:1::10",
-      "kavlan-18": "2001:660:4406:8a0:701:1::10",
-      "kavlan-2": "2001:660:4406:781:1:1::10",
-      "kavlan-20": "2001:660:4406:3a0:701:1::10",
-      "kavlan-21": "2001:660:4406:6a0:701:1::10",
-      "kavlan-3": "2001:660:4406:782:1:1::10",
-      "kavlan-4": "2001:660:4406:790:1:1::10",
-      "kavlan-5": "2001:660:4406:791:1:1::10",
-      "kavlan-6": "2001:660:4406:792:1:1::10",
-      "kavlan-7": "2001:660:4406:793:1:1::10",
-      "kavlan-8": "2001:660:4406:794:1:1::10",
-      "kavlan-9": "2001:660:4406:795:1:1::10"
+      "kavlan-1": "2001:660:4406:780:1:1:0:10",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:10",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:10",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:10",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:10",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:10",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:10",
+      "kavlan-2": "2001:660:4406:781:1:1:0:10",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:10",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:10",
+      "kavlan-3": "2001:660:4406:782:1:1:0:10",
+      "kavlan-4": "2001:660:4406:790:1:1:0:10",
+      "kavlan-5": "2001:660:4406:791:1:1:0:10",
+      "kavlan-6": "2001:660:4406:792:1:1:0:10",
+      "kavlan-7": "2001:660:4406:793:1:1:0:10",
+      "kavlan-8": "2001:660:4406:794:1:1:0:10",
+      "kavlan-9": "2001:660:4406:795:1:1:0:10"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.16",
-      "ip6": "2001:660:4406:700:1:0::10",
+      "ip6": "2001:660:4406:700:1::10",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:38",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.116",
-      "ip6": "2001:660:4406:700:1:1::10",
+      "ip6": "2001:660:4406:700:1:1:0:10",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:3a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-17.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-17.json
index 8296dd51c26fb4f345105727dd7e6126efda562e..cbd40ccfec0ec583c3c3a783070af8f426005661 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-17.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-17.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::11",
-      "kavlan-11": "2001:660:4406:1a0:701:0::11",
-      "kavlan-12": "2001:660:4406:2a0:701:0::11",
-      "kavlan-13": "2001:660:4406:4a0:701:0::11",
-      "kavlan-14": "2001:660:4406:5a0:701:0::11",
-      "kavlan-16": "2001:660:4406:7a0:701:0::11",
-      "kavlan-18": "2001:660:4406:8a0:701:0::11",
-      "kavlan-2": "2001:660:4406:781:1:0::11",
-      "kavlan-20": "2001:660:4406:3a0:701:0::11",
-      "kavlan-21": "2001:660:4406:6a0:701:0::11",
-      "kavlan-3": "2001:660:4406:782:1:0::11",
-      "kavlan-4": "2001:660:4406:790:1:0::11",
-      "kavlan-5": "2001:660:4406:791:1:0::11",
-      "kavlan-6": "2001:660:4406:792:1:0::11",
-      "kavlan-7": "2001:660:4406:793:1:0::11",
-      "kavlan-8": "2001:660:4406:794:1:0::11",
-      "kavlan-9": "2001:660:4406:795:1:0::11"
+      "kavlan-1": "2001:660:4406:780:1::11",
+      "kavlan-11": "2001:660:4406:1a0:701::11",
+      "kavlan-12": "2001:660:4406:2a0:701::11",
+      "kavlan-13": "2001:660:4406:4a0:701::11",
+      "kavlan-14": "2001:660:4406:5a0:701::11",
+      "kavlan-16": "2001:660:4406:7a0:701::11",
+      "kavlan-18": "2001:660:4406:8a0:701::11",
+      "kavlan-2": "2001:660:4406:781:1::11",
+      "kavlan-20": "2001:660:4406:3a0:701::11",
+      "kavlan-21": "2001:660:4406:6a0:701::11",
+      "kavlan-3": "2001:660:4406:782:1::11",
+      "kavlan-4": "2001:660:4406:790:1::11",
+      "kavlan-5": "2001:660:4406:791:1::11",
+      "kavlan-6": "2001:660:4406:792:1::11",
+      "kavlan-7": "2001:660:4406:793:1::11",
+      "kavlan-8": "2001:660:4406:794:1::11",
+      "kavlan-9": "2001:660:4406:795:1::11"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::11",
-      "kavlan-11": "2001:660:4406:1a0:701:1::11",
-      "kavlan-12": "2001:660:4406:2a0:701:1::11",
-      "kavlan-13": "2001:660:4406:4a0:701:1::11",
-      "kavlan-14": "2001:660:4406:5a0:701:1::11",
-      "kavlan-16": "2001:660:4406:7a0:701:1::11",
-      "kavlan-18": "2001:660:4406:8a0:701:1::11",
-      "kavlan-2": "2001:660:4406:781:1:1::11",
-      "kavlan-20": "2001:660:4406:3a0:701:1::11",
-      "kavlan-21": "2001:660:4406:6a0:701:1::11",
-      "kavlan-3": "2001:660:4406:782:1:1::11",
-      "kavlan-4": "2001:660:4406:790:1:1::11",
-      "kavlan-5": "2001:660:4406:791:1:1::11",
-      "kavlan-6": "2001:660:4406:792:1:1::11",
-      "kavlan-7": "2001:660:4406:793:1:1::11",
-      "kavlan-8": "2001:660:4406:794:1:1::11",
-      "kavlan-9": "2001:660:4406:795:1:1::11"
+      "kavlan-1": "2001:660:4406:780:1:1:0:11",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:11",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:11",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:11",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:11",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:11",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:11",
+      "kavlan-2": "2001:660:4406:781:1:1:0:11",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:11",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:11",
+      "kavlan-3": "2001:660:4406:782:1:1:0:11",
+      "kavlan-4": "2001:660:4406:790:1:1:0:11",
+      "kavlan-5": "2001:660:4406:791:1:1:0:11",
+      "kavlan-6": "2001:660:4406:792:1:1:0:11",
+      "kavlan-7": "2001:660:4406:793:1:1:0:11",
+      "kavlan-8": "2001:660:4406:794:1:1:0:11",
+      "kavlan-9": "2001:660:4406:795:1:1:0:11"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.17",
-      "ip6": "2001:660:4406:700:1:0::11",
+      "ip6": "2001:660:4406:700:1::11",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:c0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.117",
-      "ip6": "2001:660:4406:700:1:1::11",
+      "ip6": "2001:660:4406:700:1:1:0:11",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:c2",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-18.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-18.json
index 071ad07356c35d596e0977135de71beb7c341801..05a7292fd5033be12a78e42c3c1b158d8efae78c 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-18.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-18.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::12",
-      "kavlan-11": "2001:660:4406:1a0:701:0::12",
-      "kavlan-12": "2001:660:4406:2a0:701:0::12",
-      "kavlan-13": "2001:660:4406:4a0:701:0::12",
-      "kavlan-14": "2001:660:4406:5a0:701:0::12",
-      "kavlan-16": "2001:660:4406:7a0:701:0::12",
-      "kavlan-18": "2001:660:4406:8a0:701:0::12",
-      "kavlan-2": "2001:660:4406:781:1:0::12",
-      "kavlan-20": "2001:660:4406:3a0:701:0::12",
-      "kavlan-21": "2001:660:4406:6a0:701:0::12",
-      "kavlan-3": "2001:660:4406:782:1:0::12",
-      "kavlan-4": "2001:660:4406:790:1:0::12",
-      "kavlan-5": "2001:660:4406:791:1:0::12",
-      "kavlan-6": "2001:660:4406:792:1:0::12",
-      "kavlan-7": "2001:660:4406:793:1:0::12",
-      "kavlan-8": "2001:660:4406:794:1:0::12",
-      "kavlan-9": "2001:660:4406:795:1:0::12"
+      "kavlan-1": "2001:660:4406:780:1::12",
+      "kavlan-11": "2001:660:4406:1a0:701::12",
+      "kavlan-12": "2001:660:4406:2a0:701::12",
+      "kavlan-13": "2001:660:4406:4a0:701::12",
+      "kavlan-14": "2001:660:4406:5a0:701::12",
+      "kavlan-16": "2001:660:4406:7a0:701::12",
+      "kavlan-18": "2001:660:4406:8a0:701::12",
+      "kavlan-2": "2001:660:4406:781:1::12",
+      "kavlan-20": "2001:660:4406:3a0:701::12",
+      "kavlan-21": "2001:660:4406:6a0:701::12",
+      "kavlan-3": "2001:660:4406:782:1::12",
+      "kavlan-4": "2001:660:4406:790:1::12",
+      "kavlan-5": "2001:660:4406:791:1::12",
+      "kavlan-6": "2001:660:4406:792:1::12",
+      "kavlan-7": "2001:660:4406:793:1::12",
+      "kavlan-8": "2001:660:4406:794:1::12",
+      "kavlan-9": "2001:660:4406:795:1::12"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::12",
-      "kavlan-11": "2001:660:4406:1a0:701:1::12",
-      "kavlan-12": "2001:660:4406:2a0:701:1::12",
-      "kavlan-13": "2001:660:4406:4a0:701:1::12",
-      "kavlan-14": "2001:660:4406:5a0:701:1::12",
-      "kavlan-16": "2001:660:4406:7a0:701:1::12",
-      "kavlan-18": "2001:660:4406:8a0:701:1::12",
-      "kavlan-2": "2001:660:4406:781:1:1::12",
-      "kavlan-20": "2001:660:4406:3a0:701:1::12",
-      "kavlan-21": "2001:660:4406:6a0:701:1::12",
-      "kavlan-3": "2001:660:4406:782:1:1::12",
-      "kavlan-4": "2001:660:4406:790:1:1::12",
-      "kavlan-5": "2001:660:4406:791:1:1::12",
-      "kavlan-6": "2001:660:4406:792:1:1::12",
-      "kavlan-7": "2001:660:4406:793:1:1::12",
-      "kavlan-8": "2001:660:4406:794:1:1::12",
-      "kavlan-9": "2001:660:4406:795:1:1::12"
+      "kavlan-1": "2001:660:4406:780:1:1:0:12",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:12",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:12",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:12",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:12",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:12",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:12",
+      "kavlan-2": "2001:660:4406:781:1:1:0:12",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:12",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:12",
+      "kavlan-3": "2001:660:4406:782:1:1:0:12",
+      "kavlan-4": "2001:660:4406:790:1:1:0:12",
+      "kavlan-5": "2001:660:4406:791:1:1:0:12",
+      "kavlan-6": "2001:660:4406:792:1:1:0:12",
+      "kavlan-7": "2001:660:4406:793:1:1:0:12",
+      "kavlan-8": "2001:660:4406:794:1:1:0:12",
+      "kavlan-9": "2001:660:4406:795:1:1:0:12"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.18",
-      "ip6": "2001:660:4406:700:1:0::12",
+      "ip6": "2001:660:4406:700:1::12",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:e8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.118",
-      "ip6": "2001:660:4406:700:1:1::12",
+      "ip6": "2001:660:4406:700:1:1:0:12",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:ea",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-19.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-19.json
index a379d42e86ef26497331070308a95e05f27a7b87..a74ea91ce05cc17d35b10552fbfbf9d9a82e27a8 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-19.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-19.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::13",
-      "kavlan-11": "2001:660:4406:1a0:701:0::13",
-      "kavlan-12": "2001:660:4406:2a0:701:0::13",
-      "kavlan-13": "2001:660:4406:4a0:701:0::13",
-      "kavlan-14": "2001:660:4406:5a0:701:0::13",
-      "kavlan-16": "2001:660:4406:7a0:701:0::13",
-      "kavlan-18": "2001:660:4406:8a0:701:0::13",
-      "kavlan-2": "2001:660:4406:781:1:0::13",
-      "kavlan-20": "2001:660:4406:3a0:701:0::13",
-      "kavlan-21": "2001:660:4406:6a0:701:0::13",
-      "kavlan-3": "2001:660:4406:782:1:0::13",
-      "kavlan-4": "2001:660:4406:790:1:0::13",
-      "kavlan-5": "2001:660:4406:791:1:0::13",
-      "kavlan-6": "2001:660:4406:792:1:0::13",
-      "kavlan-7": "2001:660:4406:793:1:0::13",
-      "kavlan-8": "2001:660:4406:794:1:0::13",
-      "kavlan-9": "2001:660:4406:795:1:0::13"
+      "kavlan-1": "2001:660:4406:780:1::13",
+      "kavlan-11": "2001:660:4406:1a0:701::13",
+      "kavlan-12": "2001:660:4406:2a0:701::13",
+      "kavlan-13": "2001:660:4406:4a0:701::13",
+      "kavlan-14": "2001:660:4406:5a0:701::13",
+      "kavlan-16": "2001:660:4406:7a0:701::13",
+      "kavlan-18": "2001:660:4406:8a0:701::13",
+      "kavlan-2": "2001:660:4406:781:1::13",
+      "kavlan-20": "2001:660:4406:3a0:701::13",
+      "kavlan-21": "2001:660:4406:6a0:701::13",
+      "kavlan-3": "2001:660:4406:782:1::13",
+      "kavlan-4": "2001:660:4406:790:1::13",
+      "kavlan-5": "2001:660:4406:791:1::13",
+      "kavlan-6": "2001:660:4406:792:1::13",
+      "kavlan-7": "2001:660:4406:793:1::13",
+      "kavlan-8": "2001:660:4406:794:1::13",
+      "kavlan-9": "2001:660:4406:795:1::13"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::13",
-      "kavlan-11": "2001:660:4406:1a0:701:1::13",
-      "kavlan-12": "2001:660:4406:2a0:701:1::13",
-      "kavlan-13": "2001:660:4406:4a0:701:1::13",
-      "kavlan-14": "2001:660:4406:5a0:701:1::13",
-      "kavlan-16": "2001:660:4406:7a0:701:1::13",
-      "kavlan-18": "2001:660:4406:8a0:701:1::13",
-      "kavlan-2": "2001:660:4406:781:1:1::13",
-      "kavlan-20": "2001:660:4406:3a0:701:1::13",
-      "kavlan-21": "2001:660:4406:6a0:701:1::13",
-      "kavlan-3": "2001:660:4406:782:1:1::13",
-      "kavlan-4": "2001:660:4406:790:1:1::13",
-      "kavlan-5": "2001:660:4406:791:1:1::13",
-      "kavlan-6": "2001:660:4406:792:1:1::13",
-      "kavlan-7": "2001:660:4406:793:1:1::13",
-      "kavlan-8": "2001:660:4406:794:1:1::13",
-      "kavlan-9": "2001:660:4406:795:1:1::13"
+      "kavlan-1": "2001:660:4406:780:1:1:0:13",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:13",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:13",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:13",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:13",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:13",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:13",
+      "kavlan-2": "2001:660:4406:781:1:1:0:13",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:13",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:13",
+      "kavlan-3": "2001:660:4406:782:1:1:0:13",
+      "kavlan-4": "2001:660:4406:790:1:1:0:13",
+      "kavlan-5": "2001:660:4406:791:1:1:0:13",
+      "kavlan-6": "2001:660:4406:792:1:1:0:13",
+      "kavlan-7": "2001:660:4406:793:1:1:0:13",
+      "kavlan-8": "2001:660:4406:794:1:1:0:13",
+      "kavlan-9": "2001:660:4406:795:1:1:0:13"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.19",
-      "ip6": "2001:660:4406:700:1:0::13",
+      "ip6": "2001:660:4406:700:1::13",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:98",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.119",
-      "ip6": "2001:660:4406:700:1:1::13",
+      "ip6": "2001:660:4406:700:1:1:0:13",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:9a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-2.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-2.json
index 4e74c7181dd393a161fc9d73064b5dc9e5aa0032..7b246ddfee34ac9a1a531cddd02d11b3143a5771 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-2.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-2.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::2",
-      "kavlan-11": "2001:660:4406:1a0:701:0::2",
-      "kavlan-12": "2001:660:4406:2a0:701:0::2",
-      "kavlan-13": "2001:660:4406:4a0:701:0::2",
-      "kavlan-14": "2001:660:4406:5a0:701:0::2",
-      "kavlan-16": "2001:660:4406:7a0:701:0::2",
-      "kavlan-18": "2001:660:4406:8a0:701:0::2",
-      "kavlan-2": "2001:660:4406:781:1:0::2",
-      "kavlan-20": "2001:660:4406:3a0:701:0::2",
-      "kavlan-21": "2001:660:4406:6a0:701:0::2",
-      "kavlan-3": "2001:660:4406:782:1:0::2",
-      "kavlan-4": "2001:660:4406:790:1:0::2",
-      "kavlan-5": "2001:660:4406:791:1:0::2",
-      "kavlan-6": "2001:660:4406:792:1:0::2",
-      "kavlan-7": "2001:660:4406:793:1:0::2",
-      "kavlan-8": "2001:660:4406:794:1:0::2",
-      "kavlan-9": "2001:660:4406:795:1:0::2"
+      "kavlan-1": "2001:660:4406:780:1::2",
+      "kavlan-11": "2001:660:4406:1a0:701::2",
+      "kavlan-12": "2001:660:4406:2a0:701::2",
+      "kavlan-13": "2001:660:4406:4a0:701::2",
+      "kavlan-14": "2001:660:4406:5a0:701::2",
+      "kavlan-16": "2001:660:4406:7a0:701::2",
+      "kavlan-18": "2001:660:4406:8a0:701::2",
+      "kavlan-2": "2001:660:4406:781:1::2",
+      "kavlan-20": "2001:660:4406:3a0:701::2",
+      "kavlan-21": "2001:660:4406:6a0:701::2",
+      "kavlan-3": "2001:660:4406:782:1::2",
+      "kavlan-4": "2001:660:4406:790:1::2",
+      "kavlan-5": "2001:660:4406:791:1::2",
+      "kavlan-6": "2001:660:4406:792:1::2",
+      "kavlan-7": "2001:660:4406:793:1::2",
+      "kavlan-8": "2001:660:4406:794:1::2",
+      "kavlan-9": "2001:660:4406:795:1::2"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::2",
-      "kavlan-11": "2001:660:4406:1a0:701:1::2",
-      "kavlan-12": "2001:660:4406:2a0:701:1::2",
-      "kavlan-13": "2001:660:4406:4a0:701:1::2",
-      "kavlan-14": "2001:660:4406:5a0:701:1::2",
-      "kavlan-16": "2001:660:4406:7a0:701:1::2",
-      "kavlan-18": "2001:660:4406:8a0:701:1::2",
-      "kavlan-2": "2001:660:4406:781:1:1::2",
-      "kavlan-20": "2001:660:4406:3a0:701:1::2",
-      "kavlan-21": "2001:660:4406:6a0:701:1::2",
-      "kavlan-3": "2001:660:4406:782:1:1::2",
-      "kavlan-4": "2001:660:4406:790:1:1::2",
-      "kavlan-5": "2001:660:4406:791:1:1::2",
-      "kavlan-6": "2001:660:4406:792:1:1::2",
-      "kavlan-7": "2001:660:4406:793:1:1::2",
-      "kavlan-8": "2001:660:4406:794:1:1::2",
-      "kavlan-9": "2001:660:4406:795:1:1::2"
+      "kavlan-1": "2001:660:4406:780:1:1:0:2",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:2",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:2",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:2",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:2",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:2",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:2",
+      "kavlan-2": "2001:660:4406:781:1:1:0:2",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:2",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:2",
+      "kavlan-3": "2001:660:4406:782:1:1:0:2",
+      "kavlan-4": "2001:660:4406:790:1:1:0:2",
+      "kavlan-5": "2001:660:4406:791:1:1:0:2",
+      "kavlan-6": "2001:660:4406:792:1:1:0:2",
+      "kavlan-7": "2001:660:4406:793:1:1:0:2",
+      "kavlan-8": "2001:660:4406:794:1:1:0:2",
+      "kavlan-9": "2001:660:4406:795:1:1:0:2"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.2",
-      "ip6": "2001:660:4406:700:1:0::2",
+      "ip6": "2001:660:4406:700:1::2",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:b6:c0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.102",
-      "ip6": "2001:660:4406:700:1:1::2",
+      "ip6": "2001:660:4406:700:1:1:0:2",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:b6:c2",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-20.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-20.json
index 1ef4fe4b8e193691f993858bca4622ccb868e8a5..8333eb356c8a0b61c5d3a318648a5f8be6cb19ea 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-20.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-20.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::14",
-      "kavlan-11": "2001:660:4406:1a0:701:0::14",
-      "kavlan-12": "2001:660:4406:2a0:701:0::14",
-      "kavlan-13": "2001:660:4406:4a0:701:0::14",
-      "kavlan-14": "2001:660:4406:5a0:701:0::14",
-      "kavlan-16": "2001:660:4406:7a0:701:0::14",
-      "kavlan-18": "2001:660:4406:8a0:701:0::14",
-      "kavlan-2": "2001:660:4406:781:1:0::14",
-      "kavlan-20": "2001:660:4406:3a0:701:0::14",
-      "kavlan-21": "2001:660:4406:6a0:701:0::14",
-      "kavlan-3": "2001:660:4406:782:1:0::14",
-      "kavlan-4": "2001:660:4406:790:1:0::14",
-      "kavlan-5": "2001:660:4406:791:1:0::14",
-      "kavlan-6": "2001:660:4406:792:1:0::14",
-      "kavlan-7": "2001:660:4406:793:1:0::14",
-      "kavlan-8": "2001:660:4406:794:1:0::14",
-      "kavlan-9": "2001:660:4406:795:1:0::14"
+      "kavlan-1": "2001:660:4406:780:1::14",
+      "kavlan-11": "2001:660:4406:1a0:701::14",
+      "kavlan-12": "2001:660:4406:2a0:701::14",
+      "kavlan-13": "2001:660:4406:4a0:701::14",
+      "kavlan-14": "2001:660:4406:5a0:701::14",
+      "kavlan-16": "2001:660:4406:7a0:701::14",
+      "kavlan-18": "2001:660:4406:8a0:701::14",
+      "kavlan-2": "2001:660:4406:781:1::14",
+      "kavlan-20": "2001:660:4406:3a0:701::14",
+      "kavlan-21": "2001:660:4406:6a0:701::14",
+      "kavlan-3": "2001:660:4406:782:1::14",
+      "kavlan-4": "2001:660:4406:790:1::14",
+      "kavlan-5": "2001:660:4406:791:1::14",
+      "kavlan-6": "2001:660:4406:792:1::14",
+      "kavlan-7": "2001:660:4406:793:1::14",
+      "kavlan-8": "2001:660:4406:794:1::14",
+      "kavlan-9": "2001:660:4406:795:1::14"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::14",
-      "kavlan-11": "2001:660:4406:1a0:701:1::14",
-      "kavlan-12": "2001:660:4406:2a0:701:1::14",
-      "kavlan-13": "2001:660:4406:4a0:701:1::14",
-      "kavlan-14": "2001:660:4406:5a0:701:1::14",
-      "kavlan-16": "2001:660:4406:7a0:701:1::14",
-      "kavlan-18": "2001:660:4406:8a0:701:1::14",
-      "kavlan-2": "2001:660:4406:781:1:1::14",
-      "kavlan-20": "2001:660:4406:3a0:701:1::14",
-      "kavlan-21": "2001:660:4406:6a0:701:1::14",
-      "kavlan-3": "2001:660:4406:782:1:1::14",
-      "kavlan-4": "2001:660:4406:790:1:1::14",
-      "kavlan-5": "2001:660:4406:791:1:1::14",
-      "kavlan-6": "2001:660:4406:792:1:1::14",
-      "kavlan-7": "2001:660:4406:793:1:1::14",
-      "kavlan-8": "2001:660:4406:794:1:1::14",
-      "kavlan-9": "2001:660:4406:795:1:1::14"
+      "kavlan-1": "2001:660:4406:780:1:1:0:14",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:14",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:14",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:14",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:14",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:14",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:14",
+      "kavlan-2": "2001:660:4406:781:1:1:0:14",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:14",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:14",
+      "kavlan-3": "2001:660:4406:782:1:1:0:14",
+      "kavlan-4": "2001:660:4406:790:1:1:0:14",
+      "kavlan-5": "2001:660:4406:791:1:1:0:14",
+      "kavlan-6": "2001:660:4406:792:1:1:0:14",
+      "kavlan-7": "2001:660:4406:793:1:1:0:14",
+      "kavlan-8": "2001:660:4406:794:1:1:0:14",
+      "kavlan-9": "2001:660:4406:795:1:1:0:14"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.20",
-      "ip6": "2001:660:4406:700:1:0::14",
+      "ip6": "2001:660:4406:700:1::14",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:00",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.120",
-      "ip6": "2001:660:4406:700:1:1::14",
+      "ip6": "2001:660:4406:700:1:1:0:14",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:02",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-21.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-21.json
index 7dc834a52c19658119065887f9105212576e5370..29a8813a8a1f60601390f3065b3126fb2e03c0d4 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-21.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-21.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::15",
-      "kavlan-11": "2001:660:4406:1a0:701:0::15",
-      "kavlan-12": "2001:660:4406:2a0:701:0::15",
-      "kavlan-13": "2001:660:4406:4a0:701:0::15",
-      "kavlan-14": "2001:660:4406:5a0:701:0::15",
-      "kavlan-16": "2001:660:4406:7a0:701:0::15",
-      "kavlan-18": "2001:660:4406:8a0:701:0::15",
-      "kavlan-2": "2001:660:4406:781:1:0::15",
-      "kavlan-20": "2001:660:4406:3a0:701:0::15",
-      "kavlan-21": "2001:660:4406:6a0:701:0::15",
-      "kavlan-3": "2001:660:4406:782:1:0::15",
-      "kavlan-4": "2001:660:4406:790:1:0::15",
-      "kavlan-5": "2001:660:4406:791:1:0::15",
-      "kavlan-6": "2001:660:4406:792:1:0::15",
-      "kavlan-7": "2001:660:4406:793:1:0::15",
-      "kavlan-8": "2001:660:4406:794:1:0::15",
-      "kavlan-9": "2001:660:4406:795:1:0::15"
+      "kavlan-1": "2001:660:4406:780:1::15",
+      "kavlan-11": "2001:660:4406:1a0:701::15",
+      "kavlan-12": "2001:660:4406:2a0:701::15",
+      "kavlan-13": "2001:660:4406:4a0:701::15",
+      "kavlan-14": "2001:660:4406:5a0:701::15",
+      "kavlan-16": "2001:660:4406:7a0:701::15",
+      "kavlan-18": "2001:660:4406:8a0:701::15",
+      "kavlan-2": "2001:660:4406:781:1::15",
+      "kavlan-20": "2001:660:4406:3a0:701::15",
+      "kavlan-21": "2001:660:4406:6a0:701::15",
+      "kavlan-3": "2001:660:4406:782:1::15",
+      "kavlan-4": "2001:660:4406:790:1::15",
+      "kavlan-5": "2001:660:4406:791:1::15",
+      "kavlan-6": "2001:660:4406:792:1::15",
+      "kavlan-7": "2001:660:4406:793:1::15",
+      "kavlan-8": "2001:660:4406:794:1::15",
+      "kavlan-9": "2001:660:4406:795:1::15"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::15",
-      "kavlan-11": "2001:660:4406:1a0:701:1::15",
-      "kavlan-12": "2001:660:4406:2a0:701:1::15",
-      "kavlan-13": "2001:660:4406:4a0:701:1::15",
-      "kavlan-14": "2001:660:4406:5a0:701:1::15",
-      "kavlan-16": "2001:660:4406:7a0:701:1::15",
-      "kavlan-18": "2001:660:4406:8a0:701:1::15",
-      "kavlan-2": "2001:660:4406:781:1:1::15",
-      "kavlan-20": "2001:660:4406:3a0:701:1::15",
-      "kavlan-21": "2001:660:4406:6a0:701:1::15",
-      "kavlan-3": "2001:660:4406:782:1:1::15",
-      "kavlan-4": "2001:660:4406:790:1:1::15",
-      "kavlan-5": "2001:660:4406:791:1:1::15",
-      "kavlan-6": "2001:660:4406:792:1:1::15",
-      "kavlan-7": "2001:660:4406:793:1:1::15",
-      "kavlan-8": "2001:660:4406:794:1:1::15",
-      "kavlan-9": "2001:660:4406:795:1:1::15"
+      "kavlan-1": "2001:660:4406:780:1:1:0:15",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:15",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:15",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:15",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:15",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:15",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:15",
+      "kavlan-2": "2001:660:4406:781:1:1:0:15",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:15",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:15",
+      "kavlan-3": "2001:660:4406:782:1:1:0:15",
+      "kavlan-4": "2001:660:4406:790:1:1:0:15",
+      "kavlan-5": "2001:660:4406:791:1:1:0:15",
+      "kavlan-6": "2001:660:4406:792:1:1:0:15",
+      "kavlan-7": "2001:660:4406:793:1:1:0:15",
+      "kavlan-8": "2001:660:4406:794:1:1:0:15",
+      "kavlan-9": "2001:660:4406:795:1:1:0:15"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.21",
-      "ip6": "2001:660:4406:700:1:0::15",
+      "ip6": "2001:660:4406:700:1::15",
       "kavlan": true,
       "mac": "ec:f4:bb:cf:d1:08",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.121",
-      "ip6": "2001:660:4406:700:1:1::15",
+      "ip6": "2001:660:4406:700:1:1:0:15",
       "kavlan": true,
       "mac": "ec:f4:bb:cf:d1:0a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-22.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-22.json
index 6eceb4c206ebe42dbcde478f3b2197d0e801ebbe..89c0f5f58064c0ac6175e686358b4c6a8b704066 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-22.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-22.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::16",
-      "kavlan-11": "2001:660:4406:1a0:701:0::16",
-      "kavlan-12": "2001:660:4406:2a0:701:0::16",
-      "kavlan-13": "2001:660:4406:4a0:701:0::16",
-      "kavlan-14": "2001:660:4406:5a0:701:0::16",
-      "kavlan-16": "2001:660:4406:7a0:701:0::16",
-      "kavlan-18": "2001:660:4406:8a0:701:0::16",
-      "kavlan-2": "2001:660:4406:781:1:0::16",
-      "kavlan-20": "2001:660:4406:3a0:701:0::16",
-      "kavlan-21": "2001:660:4406:6a0:701:0::16",
-      "kavlan-3": "2001:660:4406:782:1:0::16",
-      "kavlan-4": "2001:660:4406:790:1:0::16",
-      "kavlan-5": "2001:660:4406:791:1:0::16",
-      "kavlan-6": "2001:660:4406:792:1:0::16",
-      "kavlan-7": "2001:660:4406:793:1:0::16",
-      "kavlan-8": "2001:660:4406:794:1:0::16",
-      "kavlan-9": "2001:660:4406:795:1:0::16"
+      "kavlan-1": "2001:660:4406:780:1::16",
+      "kavlan-11": "2001:660:4406:1a0:701::16",
+      "kavlan-12": "2001:660:4406:2a0:701::16",
+      "kavlan-13": "2001:660:4406:4a0:701::16",
+      "kavlan-14": "2001:660:4406:5a0:701::16",
+      "kavlan-16": "2001:660:4406:7a0:701::16",
+      "kavlan-18": "2001:660:4406:8a0:701::16",
+      "kavlan-2": "2001:660:4406:781:1::16",
+      "kavlan-20": "2001:660:4406:3a0:701::16",
+      "kavlan-21": "2001:660:4406:6a0:701::16",
+      "kavlan-3": "2001:660:4406:782:1::16",
+      "kavlan-4": "2001:660:4406:790:1::16",
+      "kavlan-5": "2001:660:4406:791:1::16",
+      "kavlan-6": "2001:660:4406:792:1::16",
+      "kavlan-7": "2001:660:4406:793:1::16",
+      "kavlan-8": "2001:660:4406:794:1::16",
+      "kavlan-9": "2001:660:4406:795:1::16"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::16",
-      "kavlan-11": "2001:660:4406:1a0:701:1::16",
-      "kavlan-12": "2001:660:4406:2a0:701:1::16",
-      "kavlan-13": "2001:660:4406:4a0:701:1::16",
-      "kavlan-14": "2001:660:4406:5a0:701:1::16",
-      "kavlan-16": "2001:660:4406:7a0:701:1::16",
-      "kavlan-18": "2001:660:4406:8a0:701:1::16",
-      "kavlan-2": "2001:660:4406:781:1:1::16",
-      "kavlan-20": "2001:660:4406:3a0:701:1::16",
-      "kavlan-21": "2001:660:4406:6a0:701:1::16",
-      "kavlan-3": "2001:660:4406:782:1:1::16",
-      "kavlan-4": "2001:660:4406:790:1:1::16",
-      "kavlan-5": "2001:660:4406:791:1:1::16",
-      "kavlan-6": "2001:660:4406:792:1:1::16",
-      "kavlan-7": "2001:660:4406:793:1:1::16",
-      "kavlan-8": "2001:660:4406:794:1:1::16",
-      "kavlan-9": "2001:660:4406:795:1:1::16"
+      "kavlan-1": "2001:660:4406:780:1:1:0:16",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:16",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:16",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:16",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:16",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:16",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:16",
+      "kavlan-2": "2001:660:4406:781:1:1:0:16",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:16",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:16",
+      "kavlan-3": "2001:660:4406:782:1:1:0:16",
+      "kavlan-4": "2001:660:4406:790:1:1:0:16",
+      "kavlan-5": "2001:660:4406:791:1:1:0:16",
+      "kavlan-6": "2001:660:4406:792:1:1:0:16",
+      "kavlan-7": "2001:660:4406:793:1:1:0:16",
+      "kavlan-8": "2001:660:4406:794:1:1:0:16",
+      "kavlan-9": "2001:660:4406:795:1:1:0:16"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.22",
-      "ip6": "2001:660:4406:700:1:0::16",
+      "ip6": "2001:660:4406:700:1::16",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:04:18",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.122",
-      "ip6": "2001:660:4406:700:1:1::16",
+      "ip6": "2001:660:4406:700:1:1:0:16",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:04:1a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-23.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-23.json
index 62036b1a19cd42a931ec7933485f90e5056d43a5..9fa57670c80983a08ae20b2601265563a747d1fd 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-23.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-23.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::17",
-      "kavlan-11": "2001:660:4406:1a0:701:0::17",
-      "kavlan-12": "2001:660:4406:2a0:701:0::17",
-      "kavlan-13": "2001:660:4406:4a0:701:0::17",
-      "kavlan-14": "2001:660:4406:5a0:701:0::17",
-      "kavlan-16": "2001:660:4406:7a0:701:0::17",
-      "kavlan-18": "2001:660:4406:8a0:701:0::17",
-      "kavlan-2": "2001:660:4406:781:1:0::17",
-      "kavlan-20": "2001:660:4406:3a0:701:0::17",
-      "kavlan-21": "2001:660:4406:6a0:701:0::17",
-      "kavlan-3": "2001:660:4406:782:1:0::17",
-      "kavlan-4": "2001:660:4406:790:1:0::17",
-      "kavlan-5": "2001:660:4406:791:1:0::17",
-      "kavlan-6": "2001:660:4406:792:1:0::17",
-      "kavlan-7": "2001:660:4406:793:1:0::17",
-      "kavlan-8": "2001:660:4406:794:1:0::17",
-      "kavlan-9": "2001:660:4406:795:1:0::17"
+      "kavlan-1": "2001:660:4406:780:1::17",
+      "kavlan-11": "2001:660:4406:1a0:701::17",
+      "kavlan-12": "2001:660:4406:2a0:701::17",
+      "kavlan-13": "2001:660:4406:4a0:701::17",
+      "kavlan-14": "2001:660:4406:5a0:701::17",
+      "kavlan-16": "2001:660:4406:7a0:701::17",
+      "kavlan-18": "2001:660:4406:8a0:701::17",
+      "kavlan-2": "2001:660:4406:781:1::17",
+      "kavlan-20": "2001:660:4406:3a0:701::17",
+      "kavlan-21": "2001:660:4406:6a0:701::17",
+      "kavlan-3": "2001:660:4406:782:1::17",
+      "kavlan-4": "2001:660:4406:790:1::17",
+      "kavlan-5": "2001:660:4406:791:1::17",
+      "kavlan-6": "2001:660:4406:792:1::17",
+      "kavlan-7": "2001:660:4406:793:1::17",
+      "kavlan-8": "2001:660:4406:794:1::17",
+      "kavlan-9": "2001:660:4406:795:1::17"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::17",
-      "kavlan-11": "2001:660:4406:1a0:701:1::17",
-      "kavlan-12": "2001:660:4406:2a0:701:1::17",
-      "kavlan-13": "2001:660:4406:4a0:701:1::17",
-      "kavlan-14": "2001:660:4406:5a0:701:1::17",
-      "kavlan-16": "2001:660:4406:7a0:701:1::17",
-      "kavlan-18": "2001:660:4406:8a0:701:1::17",
-      "kavlan-2": "2001:660:4406:781:1:1::17",
-      "kavlan-20": "2001:660:4406:3a0:701:1::17",
-      "kavlan-21": "2001:660:4406:6a0:701:1::17",
-      "kavlan-3": "2001:660:4406:782:1:1::17",
-      "kavlan-4": "2001:660:4406:790:1:1::17",
-      "kavlan-5": "2001:660:4406:791:1:1::17",
-      "kavlan-6": "2001:660:4406:792:1:1::17",
-      "kavlan-7": "2001:660:4406:793:1:1::17",
-      "kavlan-8": "2001:660:4406:794:1:1::17",
-      "kavlan-9": "2001:660:4406:795:1:1::17"
+      "kavlan-1": "2001:660:4406:780:1:1:0:17",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:17",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:17",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:17",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:17",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:17",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:17",
+      "kavlan-2": "2001:660:4406:781:1:1:0:17",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:17",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:17",
+      "kavlan-3": "2001:660:4406:782:1:1:0:17",
+      "kavlan-4": "2001:660:4406:790:1:1:0:17",
+      "kavlan-5": "2001:660:4406:791:1:1:0:17",
+      "kavlan-6": "2001:660:4406:792:1:1:0:17",
+      "kavlan-7": "2001:660:4406:793:1:1:0:17",
+      "kavlan-8": "2001:660:4406:794:1:1:0:17",
+      "kavlan-9": "2001:660:4406:795:1:1:0:17"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.23",
-      "ip6": "2001:660:4406:700:1:0::17",
+      "ip6": "2001:660:4406:700:1::17",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:20",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.123",
-      "ip6": "2001:660:4406:700:1:1::17",
+      "ip6": "2001:660:4406:700:1:1:0:17",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:22",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-24.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-24.json
index 1c96c31e4f90b4d9d86e7dfef731762ae89ab190..02b251cab1ff8ee63b56cc071e099466ff2afcea 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-24.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-24.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::18",
-      "kavlan-11": "2001:660:4406:1a0:701:0::18",
-      "kavlan-12": "2001:660:4406:2a0:701:0::18",
-      "kavlan-13": "2001:660:4406:4a0:701:0::18",
-      "kavlan-14": "2001:660:4406:5a0:701:0::18",
-      "kavlan-16": "2001:660:4406:7a0:701:0::18",
-      "kavlan-18": "2001:660:4406:8a0:701:0::18",
-      "kavlan-2": "2001:660:4406:781:1:0::18",
-      "kavlan-20": "2001:660:4406:3a0:701:0::18",
-      "kavlan-21": "2001:660:4406:6a0:701:0::18",
-      "kavlan-3": "2001:660:4406:782:1:0::18",
-      "kavlan-4": "2001:660:4406:790:1:0::18",
-      "kavlan-5": "2001:660:4406:791:1:0::18",
-      "kavlan-6": "2001:660:4406:792:1:0::18",
-      "kavlan-7": "2001:660:4406:793:1:0::18",
-      "kavlan-8": "2001:660:4406:794:1:0::18",
-      "kavlan-9": "2001:660:4406:795:1:0::18"
+      "kavlan-1": "2001:660:4406:780:1::18",
+      "kavlan-11": "2001:660:4406:1a0:701::18",
+      "kavlan-12": "2001:660:4406:2a0:701::18",
+      "kavlan-13": "2001:660:4406:4a0:701::18",
+      "kavlan-14": "2001:660:4406:5a0:701::18",
+      "kavlan-16": "2001:660:4406:7a0:701::18",
+      "kavlan-18": "2001:660:4406:8a0:701::18",
+      "kavlan-2": "2001:660:4406:781:1::18",
+      "kavlan-20": "2001:660:4406:3a0:701::18",
+      "kavlan-21": "2001:660:4406:6a0:701::18",
+      "kavlan-3": "2001:660:4406:782:1::18",
+      "kavlan-4": "2001:660:4406:790:1::18",
+      "kavlan-5": "2001:660:4406:791:1::18",
+      "kavlan-6": "2001:660:4406:792:1::18",
+      "kavlan-7": "2001:660:4406:793:1::18",
+      "kavlan-8": "2001:660:4406:794:1::18",
+      "kavlan-9": "2001:660:4406:795:1::18"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::18",
-      "kavlan-11": "2001:660:4406:1a0:701:1::18",
-      "kavlan-12": "2001:660:4406:2a0:701:1::18",
-      "kavlan-13": "2001:660:4406:4a0:701:1::18",
-      "kavlan-14": "2001:660:4406:5a0:701:1::18",
-      "kavlan-16": "2001:660:4406:7a0:701:1::18",
-      "kavlan-18": "2001:660:4406:8a0:701:1::18",
-      "kavlan-2": "2001:660:4406:781:1:1::18",
-      "kavlan-20": "2001:660:4406:3a0:701:1::18",
-      "kavlan-21": "2001:660:4406:6a0:701:1::18",
-      "kavlan-3": "2001:660:4406:782:1:1::18",
-      "kavlan-4": "2001:660:4406:790:1:1::18",
-      "kavlan-5": "2001:660:4406:791:1:1::18",
-      "kavlan-6": "2001:660:4406:792:1:1::18",
-      "kavlan-7": "2001:660:4406:793:1:1::18",
-      "kavlan-8": "2001:660:4406:794:1:1::18",
-      "kavlan-9": "2001:660:4406:795:1:1::18"
+      "kavlan-1": "2001:660:4406:780:1:1:0:18",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:18",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:18",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:18",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:18",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:18",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:18",
+      "kavlan-2": "2001:660:4406:781:1:1:0:18",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:18",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:18",
+      "kavlan-3": "2001:660:4406:782:1:1:0:18",
+      "kavlan-4": "2001:660:4406:790:1:1:0:18",
+      "kavlan-5": "2001:660:4406:791:1:1:0:18",
+      "kavlan-6": "2001:660:4406:792:1:1:0:18",
+      "kavlan-7": "2001:660:4406:793:1:1:0:18",
+      "kavlan-8": "2001:660:4406:794:1:1:0:18",
+      "kavlan-9": "2001:660:4406:795:1:1:0:18"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.24",
-      "ip6": "2001:660:4406:700:1:0::18",
+      "ip6": "2001:660:4406:700:1::18",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f6:e8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.124",
-      "ip6": "2001:660:4406:700:1:1::18",
+      "ip6": "2001:660:4406:700:1:1:0:18",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f6:ea",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-25.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-25.json
index de6edc61908510d0595939570d60986789f0e9f9..8ae9772d071353a932e746260be2c9d712737bb2 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-25.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-25.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::19",
-      "kavlan-11": "2001:660:4406:1a0:701:0::19",
-      "kavlan-12": "2001:660:4406:2a0:701:0::19",
-      "kavlan-13": "2001:660:4406:4a0:701:0::19",
-      "kavlan-14": "2001:660:4406:5a0:701:0::19",
-      "kavlan-16": "2001:660:4406:7a0:701:0::19",
-      "kavlan-18": "2001:660:4406:8a0:701:0::19",
-      "kavlan-2": "2001:660:4406:781:1:0::19",
-      "kavlan-20": "2001:660:4406:3a0:701:0::19",
-      "kavlan-21": "2001:660:4406:6a0:701:0::19",
-      "kavlan-3": "2001:660:4406:782:1:0::19",
-      "kavlan-4": "2001:660:4406:790:1:0::19",
-      "kavlan-5": "2001:660:4406:791:1:0::19",
-      "kavlan-6": "2001:660:4406:792:1:0::19",
-      "kavlan-7": "2001:660:4406:793:1:0::19",
-      "kavlan-8": "2001:660:4406:794:1:0::19",
-      "kavlan-9": "2001:660:4406:795:1:0::19"
+      "kavlan-1": "2001:660:4406:780:1::19",
+      "kavlan-11": "2001:660:4406:1a0:701::19",
+      "kavlan-12": "2001:660:4406:2a0:701::19",
+      "kavlan-13": "2001:660:4406:4a0:701::19",
+      "kavlan-14": "2001:660:4406:5a0:701::19",
+      "kavlan-16": "2001:660:4406:7a0:701::19",
+      "kavlan-18": "2001:660:4406:8a0:701::19",
+      "kavlan-2": "2001:660:4406:781:1::19",
+      "kavlan-20": "2001:660:4406:3a0:701::19",
+      "kavlan-21": "2001:660:4406:6a0:701::19",
+      "kavlan-3": "2001:660:4406:782:1::19",
+      "kavlan-4": "2001:660:4406:790:1::19",
+      "kavlan-5": "2001:660:4406:791:1::19",
+      "kavlan-6": "2001:660:4406:792:1::19",
+      "kavlan-7": "2001:660:4406:793:1::19",
+      "kavlan-8": "2001:660:4406:794:1::19",
+      "kavlan-9": "2001:660:4406:795:1::19"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::19",
-      "kavlan-11": "2001:660:4406:1a0:701:1::19",
-      "kavlan-12": "2001:660:4406:2a0:701:1::19",
-      "kavlan-13": "2001:660:4406:4a0:701:1::19",
-      "kavlan-14": "2001:660:4406:5a0:701:1::19",
-      "kavlan-16": "2001:660:4406:7a0:701:1::19",
-      "kavlan-18": "2001:660:4406:8a0:701:1::19",
-      "kavlan-2": "2001:660:4406:781:1:1::19",
-      "kavlan-20": "2001:660:4406:3a0:701:1::19",
-      "kavlan-21": "2001:660:4406:6a0:701:1::19",
-      "kavlan-3": "2001:660:4406:782:1:1::19",
-      "kavlan-4": "2001:660:4406:790:1:1::19",
-      "kavlan-5": "2001:660:4406:791:1:1::19",
-      "kavlan-6": "2001:660:4406:792:1:1::19",
-      "kavlan-7": "2001:660:4406:793:1:1::19",
-      "kavlan-8": "2001:660:4406:794:1:1::19",
-      "kavlan-9": "2001:660:4406:795:1:1::19"
+      "kavlan-1": "2001:660:4406:780:1:1:0:19",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:19",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:19",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:19",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:19",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:19",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:19",
+      "kavlan-2": "2001:660:4406:781:1:1:0:19",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:19",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:19",
+      "kavlan-3": "2001:660:4406:782:1:1:0:19",
+      "kavlan-4": "2001:660:4406:790:1:1:0:19",
+      "kavlan-5": "2001:660:4406:791:1:1:0:19",
+      "kavlan-6": "2001:660:4406:792:1:1:0:19",
+      "kavlan-7": "2001:660:4406:793:1:1:0:19",
+      "kavlan-8": "2001:660:4406:794:1:1:0:19",
+      "kavlan-9": "2001:660:4406:795:1:1:0:19"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.25",
-      "ip6": "2001:660:4406:700:1:0::19",
+      "ip6": "2001:660:4406:700:1::19",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:18",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.125",
-      "ip6": "2001:660:4406:700:1:1::19",
+      "ip6": "2001:660:4406:700:1:1:0:19",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:1a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-26.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-26.json
index 65844e6051c20f1684850a73a5b3fbdf4178c33c..a2db120fb9b93c2d200a3dbf7d1081fe95c49dee 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-26.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-26.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::1a",
-      "kavlan-11": "2001:660:4406:1a0:701:0::1a",
-      "kavlan-12": "2001:660:4406:2a0:701:0::1a",
-      "kavlan-13": "2001:660:4406:4a0:701:0::1a",
-      "kavlan-14": "2001:660:4406:5a0:701:0::1a",
-      "kavlan-16": "2001:660:4406:7a0:701:0::1a",
-      "kavlan-18": "2001:660:4406:8a0:701:0::1a",
-      "kavlan-2": "2001:660:4406:781:1:0::1a",
-      "kavlan-20": "2001:660:4406:3a0:701:0::1a",
-      "kavlan-21": "2001:660:4406:6a0:701:0::1a",
-      "kavlan-3": "2001:660:4406:782:1:0::1a",
-      "kavlan-4": "2001:660:4406:790:1:0::1a",
-      "kavlan-5": "2001:660:4406:791:1:0::1a",
-      "kavlan-6": "2001:660:4406:792:1:0::1a",
-      "kavlan-7": "2001:660:4406:793:1:0::1a",
-      "kavlan-8": "2001:660:4406:794:1:0::1a",
-      "kavlan-9": "2001:660:4406:795:1:0::1a"
+      "kavlan-1": "2001:660:4406:780:1::1a",
+      "kavlan-11": "2001:660:4406:1a0:701::1a",
+      "kavlan-12": "2001:660:4406:2a0:701::1a",
+      "kavlan-13": "2001:660:4406:4a0:701::1a",
+      "kavlan-14": "2001:660:4406:5a0:701::1a",
+      "kavlan-16": "2001:660:4406:7a0:701::1a",
+      "kavlan-18": "2001:660:4406:8a0:701::1a",
+      "kavlan-2": "2001:660:4406:781:1::1a",
+      "kavlan-20": "2001:660:4406:3a0:701::1a",
+      "kavlan-21": "2001:660:4406:6a0:701::1a",
+      "kavlan-3": "2001:660:4406:782:1::1a",
+      "kavlan-4": "2001:660:4406:790:1::1a",
+      "kavlan-5": "2001:660:4406:791:1::1a",
+      "kavlan-6": "2001:660:4406:792:1::1a",
+      "kavlan-7": "2001:660:4406:793:1::1a",
+      "kavlan-8": "2001:660:4406:794:1::1a",
+      "kavlan-9": "2001:660:4406:795:1::1a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::1a",
-      "kavlan-11": "2001:660:4406:1a0:701:1::1a",
-      "kavlan-12": "2001:660:4406:2a0:701:1::1a",
-      "kavlan-13": "2001:660:4406:4a0:701:1::1a",
-      "kavlan-14": "2001:660:4406:5a0:701:1::1a",
-      "kavlan-16": "2001:660:4406:7a0:701:1::1a",
-      "kavlan-18": "2001:660:4406:8a0:701:1::1a",
-      "kavlan-2": "2001:660:4406:781:1:1::1a",
-      "kavlan-20": "2001:660:4406:3a0:701:1::1a",
-      "kavlan-21": "2001:660:4406:6a0:701:1::1a",
-      "kavlan-3": "2001:660:4406:782:1:1::1a",
-      "kavlan-4": "2001:660:4406:790:1:1::1a",
-      "kavlan-5": "2001:660:4406:791:1:1::1a",
-      "kavlan-6": "2001:660:4406:792:1:1::1a",
-      "kavlan-7": "2001:660:4406:793:1:1::1a",
-      "kavlan-8": "2001:660:4406:794:1:1::1a",
-      "kavlan-9": "2001:660:4406:795:1:1::1a"
+      "kavlan-1": "2001:660:4406:780:1:1:0:1a",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:1a",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:1a",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:1a",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:1a",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:1a",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:1a",
+      "kavlan-2": "2001:660:4406:781:1:1:0:1a",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:1a",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:1a",
+      "kavlan-3": "2001:660:4406:782:1:1:0:1a",
+      "kavlan-4": "2001:660:4406:790:1:1:0:1a",
+      "kavlan-5": "2001:660:4406:791:1:1:0:1a",
+      "kavlan-6": "2001:660:4406:792:1:1:0:1a",
+      "kavlan-7": "2001:660:4406:793:1:1:0:1a",
+      "kavlan-8": "2001:660:4406:794:1:1:0:1a",
+      "kavlan-9": "2001:660:4406:795:1:1:0:1a"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.26",
-      "ip6": "2001:660:4406:700:1:0::1a",
+      "ip6": "2001:660:4406:700:1::1a",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:06:e0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.126",
-      "ip6": "2001:660:4406:700:1:1::1a",
+      "ip6": "2001:660:4406:700:1:1:0:1a",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:06:e2",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-27.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-27.json
index 8eddd564db9919c5200962c7a267b8eb90fa11fb..b661921b611169a3cbb4b24e6315480e34225742 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-27.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-27.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::1b",
-      "kavlan-11": "2001:660:4406:1a0:701:0::1b",
-      "kavlan-12": "2001:660:4406:2a0:701:0::1b",
-      "kavlan-13": "2001:660:4406:4a0:701:0::1b",
-      "kavlan-14": "2001:660:4406:5a0:701:0::1b",
-      "kavlan-16": "2001:660:4406:7a0:701:0::1b",
-      "kavlan-18": "2001:660:4406:8a0:701:0::1b",
-      "kavlan-2": "2001:660:4406:781:1:0::1b",
-      "kavlan-20": "2001:660:4406:3a0:701:0::1b",
-      "kavlan-21": "2001:660:4406:6a0:701:0::1b",
-      "kavlan-3": "2001:660:4406:782:1:0::1b",
-      "kavlan-4": "2001:660:4406:790:1:0::1b",
-      "kavlan-5": "2001:660:4406:791:1:0::1b",
-      "kavlan-6": "2001:660:4406:792:1:0::1b",
-      "kavlan-7": "2001:660:4406:793:1:0::1b",
-      "kavlan-8": "2001:660:4406:794:1:0::1b",
-      "kavlan-9": "2001:660:4406:795:1:0::1b"
+      "kavlan-1": "2001:660:4406:780:1::1b",
+      "kavlan-11": "2001:660:4406:1a0:701::1b",
+      "kavlan-12": "2001:660:4406:2a0:701::1b",
+      "kavlan-13": "2001:660:4406:4a0:701::1b",
+      "kavlan-14": "2001:660:4406:5a0:701::1b",
+      "kavlan-16": "2001:660:4406:7a0:701::1b",
+      "kavlan-18": "2001:660:4406:8a0:701::1b",
+      "kavlan-2": "2001:660:4406:781:1::1b",
+      "kavlan-20": "2001:660:4406:3a0:701::1b",
+      "kavlan-21": "2001:660:4406:6a0:701::1b",
+      "kavlan-3": "2001:660:4406:782:1::1b",
+      "kavlan-4": "2001:660:4406:790:1::1b",
+      "kavlan-5": "2001:660:4406:791:1::1b",
+      "kavlan-6": "2001:660:4406:792:1::1b",
+      "kavlan-7": "2001:660:4406:793:1::1b",
+      "kavlan-8": "2001:660:4406:794:1::1b",
+      "kavlan-9": "2001:660:4406:795:1::1b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::1b",
-      "kavlan-11": "2001:660:4406:1a0:701:1::1b",
-      "kavlan-12": "2001:660:4406:2a0:701:1::1b",
-      "kavlan-13": "2001:660:4406:4a0:701:1::1b",
-      "kavlan-14": "2001:660:4406:5a0:701:1::1b",
-      "kavlan-16": "2001:660:4406:7a0:701:1::1b",
-      "kavlan-18": "2001:660:4406:8a0:701:1::1b",
-      "kavlan-2": "2001:660:4406:781:1:1::1b",
-      "kavlan-20": "2001:660:4406:3a0:701:1::1b",
-      "kavlan-21": "2001:660:4406:6a0:701:1::1b",
-      "kavlan-3": "2001:660:4406:782:1:1::1b",
-      "kavlan-4": "2001:660:4406:790:1:1::1b",
-      "kavlan-5": "2001:660:4406:791:1:1::1b",
-      "kavlan-6": "2001:660:4406:792:1:1::1b",
-      "kavlan-7": "2001:660:4406:793:1:1::1b",
-      "kavlan-8": "2001:660:4406:794:1:1::1b",
-      "kavlan-9": "2001:660:4406:795:1:1::1b"
+      "kavlan-1": "2001:660:4406:780:1:1:0:1b",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:1b",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:1b",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:1b",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:1b",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:1b",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:1b",
+      "kavlan-2": "2001:660:4406:781:1:1:0:1b",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:1b",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:1b",
+      "kavlan-3": "2001:660:4406:782:1:1:0:1b",
+      "kavlan-4": "2001:660:4406:790:1:1:0:1b",
+      "kavlan-5": "2001:660:4406:791:1:1:0:1b",
+      "kavlan-6": "2001:660:4406:792:1:1:0:1b",
+      "kavlan-7": "2001:660:4406:793:1:1:0:1b",
+      "kavlan-8": "2001:660:4406:794:1:1:0:1b",
+      "kavlan-9": "2001:660:4406:795:1:1:0:1b"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.27",
-      "ip6": "2001:660:4406:700:1:0::1b",
+      "ip6": "2001:660:4406:700:1::1b",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f0:08",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.127",
-      "ip6": "2001:660:4406:700:1:1::1b",
+      "ip6": "2001:660:4406:700:1:1:0:1b",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f0:0a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-28.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-28.json
index 1b0ce095ff5ca597f0474c93993914f894a13750..bed6136b5c182a18c738be7699bea0510176ca3e 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-28.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-28.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::1c",
-      "kavlan-11": "2001:660:4406:1a0:701:0::1c",
-      "kavlan-12": "2001:660:4406:2a0:701:0::1c",
-      "kavlan-13": "2001:660:4406:4a0:701:0::1c",
-      "kavlan-14": "2001:660:4406:5a0:701:0::1c",
-      "kavlan-16": "2001:660:4406:7a0:701:0::1c",
-      "kavlan-18": "2001:660:4406:8a0:701:0::1c",
-      "kavlan-2": "2001:660:4406:781:1:0::1c",
-      "kavlan-20": "2001:660:4406:3a0:701:0::1c",
-      "kavlan-21": "2001:660:4406:6a0:701:0::1c",
-      "kavlan-3": "2001:660:4406:782:1:0::1c",
-      "kavlan-4": "2001:660:4406:790:1:0::1c",
-      "kavlan-5": "2001:660:4406:791:1:0::1c",
-      "kavlan-6": "2001:660:4406:792:1:0::1c",
-      "kavlan-7": "2001:660:4406:793:1:0::1c",
-      "kavlan-8": "2001:660:4406:794:1:0::1c",
-      "kavlan-9": "2001:660:4406:795:1:0::1c"
+      "kavlan-1": "2001:660:4406:780:1::1c",
+      "kavlan-11": "2001:660:4406:1a0:701::1c",
+      "kavlan-12": "2001:660:4406:2a0:701::1c",
+      "kavlan-13": "2001:660:4406:4a0:701::1c",
+      "kavlan-14": "2001:660:4406:5a0:701::1c",
+      "kavlan-16": "2001:660:4406:7a0:701::1c",
+      "kavlan-18": "2001:660:4406:8a0:701::1c",
+      "kavlan-2": "2001:660:4406:781:1::1c",
+      "kavlan-20": "2001:660:4406:3a0:701::1c",
+      "kavlan-21": "2001:660:4406:6a0:701::1c",
+      "kavlan-3": "2001:660:4406:782:1::1c",
+      "kavlan-4": "2001:660:4406:790:1::1c",
+      "kavlan-5": "2001:660:4406:791:1::1c",
+      "kavlan-6": "2001:660:4406:792:1::1c",
+      "kavlan-7": "2001:660:4406:793:1::1c",
+      "kavlan-8": "2001:660:4406:794:1::1c",
+      "kavlan-9": "2001:660:4406:795:1::1c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::1c",
-      "kavlan-11": "2001:660:4406:1a0:701:1::1c",
-      "kavlan-12": "2001:660:4406:2a0:701:1::1c",
-      "kavlan-13": "2001:660:4406:4a0:701:1::1c",
-      "kavlan-14": "2001:660:4406:5a0:701:1::1c",
-      "kavlan-16": "2001:660:4406:7a0:701:1::1c",
-      "kavlan-18": "2001:660:4406:8a0:701:1::1c",
-      "kavlan-2": "2001:660:4406:781:1:1::1c",
-      "kavlan-20": "2001:660:4406:3a0:701:1::1c",
-      "kavlan-21": "2001:660:4406:6a0:701:1::1c",
-      "kavlan-3": "2001:660:4406:782:1:1::1c",
-      "kavlan-4": "2001:660:4406:790:1:1::1c",
-      "kavlan-5": "2001:660:4406:791:1:1::1c",
-      "kavlan-6": "2001:660:4406:792:1:1::1c",
-      "kavlan-7": "2001:660:4406:793:1:1::1c",
-      "kavlan-8": "2001:660:4406:794:1:1::1c",
-      "kavlan-9": "2001:660:4406:795:1:1::1c"
+      "kavlan-1": "2001:660:4406:780:1:1:0:1c",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:1c",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:1c",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:1c",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:1c",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:1c",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:1c",
+      "kavlan-2": "2001:660:4406:781:1:1:0:1c",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:1c",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:1c",
+      "kavlan-3": "2001:660:4406:782:1:1:0:1c",
+      "kavlan-4": "2001:660:4406:790:1:1:0:1c",
+      "kavlan-5": "2001:660:4406:791:1:1:0:1c",
+      "kavlan-6": "2001:660:4406:792:1:1:0:1c",
+      "kavlan-7": "2001:660:4406:793:1:1:0:1c",
+      "kavlan-8": "2001:660:4406:794:1:1:0:1c",
+      "kavlan-9": "2001:660:4406:795:1:1:0:1c"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.28",
-      "ip6": "2001:660:4406:700:1:0::1c",
+      "ip6": "2001:660:4406:700:1::1c",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f9:08",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.128",
-      "ip6": "2001:660:4406:700:1:1::1c",
+      "ip6": "2001:660:4406:700:1:1:0:1c",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f9:0a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-29.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-29.json
index 8345bc59dbccd41a80da8d190dcc2745d2d93a4a..3e2c3acd19bb18584cd15de4e07bedf8917abc80 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-29.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-29.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::1d",
-      "kavlan-11": "2001:660:4406:1a0:701:0::1d",
-      "kavlan-12": "2001:660:4406:2a0:701:0::1d",
-      "kavlan-13": "2001:660:4406:4a0:701:0::1d",
-      "kavlan-14": "2001:660:4406:5a0:701:0::1d",
-      "kavlan-16": "2001:660:4406:7a0:701:0::1d",
-      "kavlan-18": "2001:660:4406:8a0:701:0::1d",
-      "kavlan-2": "2001:660:4406:781:1:0::1d",
-      "kavlan-20": "2001:660:4406:3a0:701:0::1d",
-      "kavlan-21": "2001:660:4406:6a0:701:0::1d",
-      "kavlan-3": "2001:660:4406:782:1:0::1d",
-      "kavlan-4": "2001:660:4406:790:1:0::1d",
-      "kavlan-5": "2001:660:4406:791:1:0::1d",
-      "kavlan-6": "2001:660:4406:792:1:0::1d",
-      "kavlan-7": "2001:660:4406:793:1:0::1d",
-      "kavlan-8": "2001:660:4406:794:1:0::1d",
-      "kavlan-9": "2001:660:4406:795:1:0::1d"
+      "kavlan-1": "2001:660:4406:780:1::1d",
+      "kavlan-11": "2001:660:4406:1a0:701::1d",
+      "kavlan-12": "2001:660:4406:2a0:701::1d",
+      "kavlan-13": "2001:660:4406:4a0:701::1d",
+      "kavlan-14": "2001:660:4406:5a0:701::1d",
+      "kavlan-16": "2001:660:4406:7a0:701::1d",
+      "kavlan-18": "2001:660:4406:8a0:701::1d",
+      "kavlan-2": "2001:660:4406:781:1::1d",
+      "kavlan-20": "2001:660:4406:3a0:701::1d",
+      "kavlan-21": "2001:660:4406:6a0:701::1d",
+      "kavlan-3": "2001:660:4406:782:1::1d",
+      "kavlan-4": "2001:660:4406:790:1::1d",
+      "kavlan-5": "2001:660:4406:791:1::1d",
+      "kavlan-6": "2001:660:4406:792:1::1d",
+      "kavlan-7": "2001:660:4406:793:1::1d",
+      "kavlan-8": "2001:660:4406:794:1::1d",
+      "kavlan-9": "2001:660:4406:795:1::1d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::1d",
-      "kavlan-11": "2001:660:4406:1a0:701:1::1d",
-      "kavlan-12": "2001:660:4406:2a0:701:1::1d",
-      "kavlan-13": "2001:660:4406:4a0:701:1::1d",
-      "kavlan-14": "2001:660:4406:5a0:701:1::1d",
-      "kavlan-16": "2001:660:4406:7a0:701:1::1d",
-      "kavlan-18": "2001:660:4406:8a0:701:1::1d",
-      "kavlan-2": "2001:660:4406:781:1:1::1d",
-      "kavlan-20": "2001:660:4406:3a0:701:1::1d",
-      "kavlan-21": "2001:660:4406:6a0:701:1::1d",
-      "kavlan-3": "2001:660:4406:782:1:1::1d",
-      "kavlan-4": "2001:660:4406:790:1:1::1d",
-      "kavlan-5": "2001:660:4406:791:1:1::1d",
-      "kavlan-6": "2001:660:4406:792:1:1::1d",
-      "kavlan-7": "2001:660:4406:793:1:1::1d",
-      "kavlan-8": "2001:660:4406:794:1:1::1d",
-      "kavlan-9": "2001:660:4406:795:1:1::1d"
+      "kavlan-1": "2001:660:4406:780:1:1:0:1d",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:1d",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:1d",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:1d",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:1d",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:1d",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:1d",
+      "kavlan-2": "2001:660:4406:781:1:1:0:1d",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:1d",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:1d",
+      "kavlan-3": "2001:660:4406:782:1:1:0:1d",
+      "kavlan-4": "2001:660:4406:790:1:1:0:1d",
+      "kavlan-5": "2001:660:4406:791:1:1:0:1d",
+      "kavlan-6": "2001:660:4406:792:1:1:0:1d",
+      "kavlan-7": "2001:660:4406:793:1:1:0:1d",
+      "kavlan-8": "2001:660:4406:794:1:1:0:1d",
+      "kavlan-9": "2001:660:4406:795:1:1:0:1d"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.29",
-      "ip6": "2001:660:4406:700:1:0::1d",
+      "ip6": "2001:660:4406:700:1::1d",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fe:80",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.129",
-      "ip6": "2001:660:4406:700:1:1::1d",
+      "ip6": "2001:660:4406:700:1:1:0:1d",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fe:82",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-3.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-3.json
index fb2073302291aa096d4442fff7ce70c48352ee15..7680ce5ba3e6e00fcc44ddd95378c6802ec3b631 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-3.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-3.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::3",
-      "kavlan-11": "2001:660:4406:1a0:701:0::3",
-      "kavlan-12": "2001:660:4406:2a0:701:0::3",
-      "kavlan-13": "2001:660:4406:4a0:701:0::3",
-      "kavlan-14": "2001:660:4406:5a0:701:0::3",
-      "kavlan-16": "2001:660:4406:7a0:701:0::3",
-      "kavlan-18": "2001:660:4406:8a0:701:0::3",
-      "kavlan-2": "2001:660:4406:781:1:0::3",
-      "kavlan-20": "2001:660:4406:3a0:701:0::3",
-      "kavlan-21": "2001:660:4406:6a0:701:0::3",
-      "kavlan-3": "2001:660:4406:782:1:0::3",
-      "kavlan-4": "2001:660:4406:790:1:0::3",
-      "kavlan-5": "2001:660:4406:791:1:0::3",
-      "kavlan-6": "2001:660:4406:792:1:0::3",
-      "kavlan-7": "2001:660:4406:793:1:0::3",
-      "kavlan-8": "2001:660:4406:794:1:0::3",
-      "kavlan-9": "2001:660:4406:795:1:0::3"
+      "kavlan-1": "2001:660:4406:780:1::3",
+      "kavlan-11": "2001:660:4406:1a0:701::3",
+      "kavlan-12": "2001:660:4406:2a0:701::3",
+      "kavlan-13": "2001:660:4406:4a0:701::3",
+      "kavlan-14": "2001:660:4406:5a0:701::3",
+      "kavlan-16": "2001:660:4406:7a0:701::3",
+      "kavlan-18": "2001:660:4406:8a0:701::3",
+      "kavlan-2": "2001:660:4406:781:1::3",
+      "kavlan-20": "2001:660:4406:3a0:701::3",
+      "kavlan-21": "2001:660:4406:6a0:701::3",
+      "kavlan-3": "2001:660:4406:782:1::3",
+      "kavlan-4": "2001:660:4406:790:1::3",
+      "kavlan-5": "2001:660:4406:791:1::3",
+      "kavlan-6": "2001:660:4406:792:1::3",
+      "kavlan-7": "2001:660:4406:793:1::3",
+      "kavlan-8": "2001:660:4406:794:1::3",
+      "kavlan-9": "2001:660:4406:795:1::3"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::3",
-      "kavlan-11": "2001:660:4406:1a0:701:1::3",
-      "kavlan-12": "2001:660:4406:2a0:701:1::3",
-      "kavlan-13": "2001:660:4406:4a0:701:1::3",
-      "kavlan-14": "2001:660:4406:5a0:701:1::3",
-      "kavlan-16": "2001:660:4406:7a0:701:1::3",
-      "kavlan-18": "2001:660:4406:8a0:701:1::3",
-      "kavlan-2": "2001:660:4406:781:1:1::3",
-      "kavlan-20": "2001:660:4406:3a0:701:1::3",
-      "kavlan-21": "2001:660:4406:6a0:701:1::3",
-      "kavlan-3": "2001:660:4406:782:1:1::3",
-      "kavlan-4": "2001:660:4406:790:1:1::3",
-      "kavlan-5": "2001:660:4406:791:1:1::3",
-      "kavlan-6": "2001:660:4406:792:1:1::3",
-      "kavlan-7": "2001:660:4406:793:1:1::3",
-      "kavlan-8": "2001:660:4406:794:1:1::3",
-      "kavlan-9": "2001:660:4406:795:1:1::3"
+      "kavlan-1": "2001:660:4406:780:1:1:0:3",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:3",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:3",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:3",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:3",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:3",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:3",
+      "kavlan-2": "2001:660:4406:781:1:1:0:3",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:3",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:3",
+      "kavlan-3": "2001:660:4406:782:1:1:0:3",
+      "kavlan-4": "2001:660:4406:790:1:1:0:3",
+      "kavlan-5": "2001:660:4406:791:1:1:0:3",
+      "kavlan-6": "2001:660:4406:792:1:1:0:3",
+      "kavlan-7": "2001:660:4406:793:1:1:0:3",
+      "kavlan-8": "2001:660:4406:794:1:1:0:3",
+      "kavlan-9": "2001:660:4406:795:1:1:0:3"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.3",
-      "ip6": "2001:660:4406:700:1:0::3",
+      "ip6": "2001:660:4406:700:1::3",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f0:c8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.103",
-      "ip6": "2001:660:4406:700:1:1::3",
+      "ip6": "2001:660:4406:700:1:1:0:3",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f0:ca",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-30.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-30.json
index 2ca8d526aa1d72e9173fd180a92468a5ece512a8..6c06914869ec09b139eab383d096d0ae6e0ac3f6 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-30.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-30.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::1e",
-      "kavlan-11": "2001:660:4406:1a0:701:0::1e",
-      "kavlan-12": "2001:660:4406:2a0:701:0::1e",
-      "kavlan-13": "2001:660:4406:4a0:701:0::1e",
-      "kavlan-14": "2001:660:4406:5a0:701:0::1e",
-      "kavlan-16": "2001:660:4406:7a0:701:0::1e",
-      "kavlan-18": "2001:660:4406:8a0:701:0::1e",
-      "kavlan-2": "2001:660:4406:781:1:0::1e",
-      "kavlan-20": "2001:660:4406:3a0:701:0::1e",
-      "kavlan-21": "2001:660:4406:6a0:701:0::1e",
-      "kavlan-3": "2001:660:4406:782:1:0::1e",
-      "kavlan-4": "2001:660:4406:790:1:0::1e",
-      "kavlan-5": "2001:660:4406:791:1:0::1e",
-      "kavlan-6": "2001:660:4406:792:1:0::1e",
-      "kavlan-7": "2001:660:4406:793:1:0::1e",
-      "kavlan-8": "2001:660:4406:794:1:0::1e",
-      "kavlan-9": "2001:660:4406:795:1:0::1e"
+      "kavlan-1": "2001:660:4406:780:1::1e",
+      "kavlan-11": "2001:660:4406:1a0:701::1e",
+      "kavlan-12": "2001:660:4406:2a0:701::1e",
+      "kavlan-13": "2001:660:4406:4a0:701::1e",
+      "kavlan-14": "2001:660:4406:5a0:701::1e",
+      "kavlan-16": "2001:660:4406:7a0:701::1e",
+      "kavlan-18": "2001:660:4406:8a0:701::1e",
+      "kavlan-2": "2001:660:4406:781:1::1e",
+      "kavlan-20": "2001:660:4406:3a0:701::1e",
+      "kavlan-21": "2001:660:4406:6a0:701::1e",
+      "kavlan-3": "2001:660:4406:782:1::1e",
+      "kavlan-4": "2001:660:4406:790:1::1e",
+      "kavlan-5": "2001:660:4406:791:1::1e",
+      "kavlan-6": "2001:660:4406:792:1::1e",
+      "kavlan-7": "2001:660:4406:793:1::1e",
+      "kavlan-8": "2001:660:4406:794:1::1e",
+      "kavlan-9": "2001:660:4406:795:1::1e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::1e",
-      "kavlan-11": "2001:660:4406:1a0:701:1::1e",
-      "kavlan-12": "2001:660:4406:2a0:701:1::1e",
-      "kavlan-13": "2001:660:4406:4a0:701:1::1e",
-      "kavlan-14": "2001:660:4406:5a0:701:1::1e",
-      "kavlan-16": "2001:660:4406:7a0:701:1::1e",
-      "kavlan-18": "2001:660:4406:8a0:701:1::1e",
-      "kavlan-2": "2001:660:4406:781:1:1::1e",
-      "kavlan-20": "2001:660:4406:3a0:701:1::1e",
-      "kavlan-21": "2001:660:4406:6a0:701:1::1e",
-      "kavlan-3": "2001:660:4406:782:1:1::1e",
-      "kavlan-4": "2001:660:4406:790:1:1::1e",
-      "kavlan-5": "2001:660:4406:791:1:1::1e",
-      "kavlan-6": "2001:660:4406:792:1:1::1e",
-      "kavlan-7": "2001:660:4406:793:1:1::1e",
-      "kavlan-8": "2001:660:4406:794:1:1::1e",
-      "kavlan-9": "2001:660:4406:795:1:1::1e"
+      "kavlan-1": "2001:660:4406:780:1:1:0:1e",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:1e",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:1e",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:1e",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:1e",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:1e",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:1e",
+      "kavlan-2": "2001:660:4406:781:1:1:0:1e",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:1e",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:1e",
+      "kavlan-3": "2001:660:4406:782:1:1:0:1e",
+      "kavlan-4": "2001:660:4406:790:1:1:0:1e",
+      "kavlan-5": "2001:660:4406:791:1:1:0:1e",
+      "kavlan-6": "2001:660:4406:792:1:1:0:1e",
+      "kavlan-7": "2001:660:4406:793:1:1:0:1e",
+      "kavlan-8": "2001:660:4406:794:1:1:0:1e",
+      "kavlan-9": "2001:660:4406:795:1:1:0:1e"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.30",
-      "ip6": "2001:660:4406:700:1:0::1e",
+      "ip6": "2001:660:4406:700:1::1e",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f5:88",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.130",
-      "ip6": "2001:660:4406:700:1:1::1e",
+      "ip6": "2001:660:4406:700:1:1:0:1e",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f5:8a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-31.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-31.json
index e39b7bc9d261867f733c89b0a35dc6049fd7a474..ecdbc1b0b0f48d83dcce08235ed2bc59535f2db9 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-31.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-31.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::1f",
-      "kavlan-11": "2001:660:4406:1a0:701:0::1f",
-      "kavlan-12": "2001:660:4406:2a0:701:0::1f",
-      "kavlan-13": "2001:660:4406:4a0:701:0::1f",
-      "kavlan-14": "2001:660:4406:5a0:701:0::1f",
-      "kavlan-16": "2001:660:4406:7a0:701:0::1f",
-      "kavlan-18": "2001:660:4406:8a0:701:0::1f",
-      "kavlan-2": "2001:660:4406:781:1:0::1f",
-      "kavlan-20": "2001:660:4406:3a0:701:0::1f",
-      "kavlan-21": "2001:660:4406:6a0:701:0::1f",
-      "kavlan-3": "2001:660:4406:782:1:0::1f",
-      "kavlan-4": "2001:660:4406:790:1:0::1f",
-      "kavlan-5": "2001:660:4406:791:1:0::1f",
-      "kavlan-6": "2001:660:4406:792:1:0::1f",
-      "kavlan-7": "2001:660:4406:793:1:0::1f",
-      "kavlan-8": "2001:660:4406:794:1:0::1f",
-      "kavlan-9": "2001:660:4406:795:1:0::1f"
+      "kavlan-1": "2001:660:4406:780:1::1f",
+      "kavlan-11": "2001:660:4406:1a0:701::1f",
+      "kavlan-12": "2001:660:4406:2a0:701::1f",
+      "kavlan-13": "2001:660:4406:4a0:701::1f",
+      "kavlan-14": "2001:660:4406:5a0:701::1f",
+      "kavlan-16": "2001:660:4406:7a0:701::1f",
+      "kavlan-18": "2001:660:4406:8a0:701::1f",
+      "kavlan-2": "2001:660:4406:781:1::1f",
+      "kavlan-20": "2001:660:4406:3a0:701::1f",
+      "kavlan-21": "2001:660:4406:6a0:701::1f",
+      "kavlan-3": "2001:660:4406:782:1::1f",
+      "kavlan-4": "2001:660:4406:790:1::1f",
+      "kavlan-5": "2001:660:4406:791:1::1f",
+      "kavlan-6": "2001:660:4406:792:1::1f",
+      "kavlan-7": "2001:660:4406:793:1::1f",
+      "kavlan-8": "2001:660:4406:794:1::1f",
+      "kavlan-9": "2001:660:4406:795:1::1f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::1f",
-      "kavlan-11": "2001:660:4406:1a0:701:1::1f",
-      "kavlan-12": "2001:660:4406:2a0:701:1::1f",
-      "kavlan-13": "2001:660:4406:4a0:701:1::1f",
-      "kavlan-14": "2001:660:4406:5a0:701:1::1f",
-      "kavlan-16": "2001:660:4406:7a0:701:1::1f",
-      "kavlan-18": "2001:660:4406:8a0:701:1::1f",
-      "kavlan-2": "2001:660:4406:781:1:1::1f",
-      "kavlan-20": "2001:660:4406:3a0:701:1::1f",
-      "kavlan-21": "2001:660:4406:6a0:701:1::1f",
-      "kavlan-3": "2001:660:4406:782:1:1::1f",
-      "kavlan-4": "2001:660:4406:790:1:1::1f",
-      "kavlan-5": "2001:660:4406:791:1:1::1f",
-      "kavlan-6": "2001:660:4406:792:1:1::1f",
-      "kavlan-7": "2001:660:4406:793:1:1::1f",
-      "kavlan-8": "2001:660:4406:794:1:1::1f",
-      "kavlan-9": "2001:660:4406:795:1:1::1f"
+      "kavlan-1": "2001:660:4406:780:1:1:0:1f",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:1f",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:1f",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:1f",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:1f",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:1f",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:1f",
+      "kavlan-2": "2001:660:4406:781:1:1:0:1f",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:1f",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:1f",
+      "kavlan-3": "2001:660:4406:782:1:1:0:1f",
+      "kavlan-4": "2001:660:4406:790:1:1:0:1f",
+      "kavlan-5": "2001:660:4406:791:1:1:0:1f",
+      "kavlan-6": "2001:660:4406:792:1:1:0:1f",
+      "kavlan-7": "2001:660:4406:793:1:1:0:1f",
+      "kavlan-8": "2001:660:4406:794:1:1:0:1f",
+      "kavlan-9": "2001:660:4406:795:1:1:0:1f"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.31",
-      "ip6": "2001:660:4406:700:1:0::1f",
+      "ip6": "2001:660:4406:700:1::1f",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f8:98",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.131",
-      "ip6": "2001:660:4406:700:1:1::1f",
+      "ip6": "2001:660:4406:700:1:1:0:1f",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f8:9a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-32.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-32.json
index 70ebe5ced34cb2e2678f813c12a669c52ff53e0f..68024bb8e28fb3785039e3b0cecc5372e33cb46d 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-32.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-32.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::20",
-      "kavlan-11": "2001:660:4406:1a0:701:0::20",
-      "kavlan-12": "2001:660:4406:2a0:701:0::20",
-      "kavlan-13": "2001:660:4406:4a0:701:0::20",
-      "kavlan-14": "2001:660:4406:5a0:701:0::20",
-      "kavlan-16": "2001:660:4406:7a0:701:0::20",
-      "kavlan-18": "2001:660:4406:8a0:701:0::20",
-      "kavlan-2": "2001:660:4406:781:1:0::20",
-      "kavlan-20": "2001:660:4406:3a0:701:0::20",
-      "kavlan-21": "2001:660:4406:6a0:701:0::20",
-      "kavlan-3": "2001:660:4406:782:1:0::20",
-      "kavlan-4": "2001:660:4406:790:1:0::20",
-      "kavlan-5": "2001:660:4406:791:1:0::20",
-      "kavlan-6": "2001:660:4406:792:1:0::20",
-      "kavlan-7": "2001:660:4406:793:1:0::20",
-      "kavlan-8": "2001:660:4406:794:1:0::20",
-      "kavlan-9": "2001:660:4406:795:1:0::20"
+      "kavlan-1": "2001:660:4406:780:1::20",
+      "kavlan-11": "2001:660:4406:1a0:701::20",
+      "kavlan-12": "2001:660:4406:2a0:701::20",
+      "kavlan-13": "2001:660:4406:4a0:701::20",
+      "kavlan-14": "2001:660:4406:5a0:701::20",
+      "kavlan-16": "2001:660:4406:7a0:701::20",
+      "kavlan-18": "2001:660:4406:8a0:701::20",
+      "kavlan-2": "2001:660:4406:781:1::20",
+      "kavlan-20": "2001:660:4406:3a0:701::20",
+      "kavlan-21": "2001:660:4406:6a0:701::20",
+      "kavlan-3": "2001:660:4406:782:1::20",
+      "kavlan-4": "2001:660:4406:790:1::20",
+      "kavlan-5": "2001:660:4406:791:1::20",
+      "kavlan-6": "2001:660:4406:792:1::20",
+      "kavlan-7": "2001:660:4406:793:1::20",
+      "kavlan-8": "2001:660:4406:794:1::20",
+      "kavlan-9": "2001:660:4406:795:1::20"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::20",
-      "kavlan-11": "2001:660:4406:1a0:701:1::20",
-      "kavlan-12": "2001:660:4406:2a0:701:1::20",
-      "kavlan-13": "2001:660:4406:4a0:701:1::20",
-      "kavlan-14": "2001:660:4406:5a0:701:1::20",
-      "kavlan-16": "2001:660:4406:7a0:701:1::20",
-      "kavlan-18": "2001:660:4406:8a0:701:1::20",
-      "kavlan-2": "2001:660:4406:781:1:1::20",
-      "kavlan-20": "2001:660:4406:3a0:701:1::20",
-      "kavlan-21": "2001:660:4406:6a0:701:1::20",
-      "kavlan-3": "2001:660:4406:782:1:1::20",
-      "kavlan-4": "2001:660:4406:790:1:1::20",
-      "kavlan-5": "2001:660:4406:791:1:1::20",
-      "kavlan-6": "2001:660:4406:792:1:1::20",
-      "kavlan-7": "2001:660:4406:793:1:1::20",
-      "kavlan-8": "2001:660:4406:794:1:1::20",
-      "kavlan-9": "2001:660:4406:795:1:1::20"
+      "kavlan-1": "2001:660:4406:780:1:1:0:20",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:20",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:20",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:20",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:20",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:20",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:20",
+      "kavlan-2": "2001:660:4406:781:1:1:0:20",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:20",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:20",
+      "kavlan-3": "2001:660:4406:782:1:1:0:20",
+      "kavlan-4": "2001:660:4406:790:1:1:0:20",
+      "kavlan-5": "2001:660:4406:791:1:1:0:20",
+      "kavlan-6": "2001:660:4406:792:1:1:0:20",
+      "kavlan-7": "2001:660:4406:793:1:1:0:20",
+      "kavlan-8": "2001:660:4406:794:1:1:0:20",
+      "kavlan-9": "2001:660:4406:795:1:1:0:20"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.32",
-      "ip6": "2001:660:4406:700:1:0::20",
+      "ip6": "2001:660:4406:700:1::20",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:f0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.132",
-      "ip6": "2001:660:4406:700:1:1::20",
+      "ip6": "2001:660:4406:700:1:1:0:20",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:f2",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-33.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-33.json
index 6f2d23edc91799dffe6ce1d625f8e6d6b3ff3bad..d801ea203de7fc968a7308ae462620baa0fa4215 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-33.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-33.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::21",
-      "kavlan-11": "2001:660:4406:1a0:701:0::21",
-      "kavlan-12": "2001:660:4406:2a0:701:0::21",
-      "kavlan-13": "2001:660:4406:4a0:701:0::21",
-      "kavlan-14": "2001:660:4406:5a0:701:0::21",
-      "kavlan-16": "2001:660:4406:7a0:701:0::21",
-      "kavlan-18": "2001:660:4406:8a0:701:0::21",
-      "kavlan-2": "2001:660:4406:781:1:0::21",
-      "kavlan-20": "2001:660:4406:3a0:701:0::21",
-      "kavlan-21": "2001:660:4406:6a0:701:0::21",
-      "kavlan-3": "2001:660:4406:782:1:0::21",
-      "kavlan-4": "2001:660:4406:790:1:0::21",
-      "kavlan-5": "2001:660:4406:791:1:0::21",
-      "kavlan-6": "2001:660:4406:792:1:0::21",
-      "kavlan-7": "2001:660:4406:793:1:0::21",
-      "kavlan-8": "2001:660:4406:794:1:0::21",
-      "kavlan-9": "2001:660:4406:795:1:0::21"
+      "kavlan-1": "2001:660:4406:780:1::21",
+      "kavlan-11": "2001:660:4406:1a0:701::21",
+      "kavlan-12": "2001:660:4406:2a0:701::21",
+      "kavlan-13": "2001:660:4406:4a0:701::21",
+      "kavlan-14": "2001:660:4406:5a0:701::21",
+      "kavlan-16": "2001:660:4406:7a0:701::21",
+      "kavlan-18": "2001:660:4406:8a0:701::21",
+      "kavlan-2": "2001:660:4406:781:1::21",
+      "kavlan-20": "2001:660:4406:3a0:701::21",
+      "kavlan-21": "2001:660:4406:6a0:701::21",
+      "kavlan-3": "2001:660:4406:782:1::21",
+      "kavlan-4": "2001:660:4406:790:1::21",
+      "kavlan-5": "2001:660:4406:791:1::21",
+      "kavlan-6": "2001:660:4406:792:1::21",
+      "kavlan-7": "2001:660:4406:793:1::21",
+      "kavlan-8": "2001:660:4406:794:1::21",
+      "kavlan-9": "2001:660:4406:795:1::21"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::21",
-      "kavlan-11": "2001:660:4406:1a0:701:1::21",
-      "kavlan-12": "2001:660:4406:2a0:701:1::21",
-      "kavlan-13": "2001:660:4406:4a0:701:1::21",
-      "kavlan-14": "2001:660:4406:5a0:701:1::21",
-      "kavlan-16": "2001:660:4406:7a0:701:1::21",
-      "kavlan-18": "2001:660:4406:8a0:701:1::21",
-      "kavlan-2": "2001:660:4406:781:1:1::21",
-      "kavlan-20": "2001:660:4406:3a0:701:1::21",
-      "kavlan-21": "2001:660:4406:6a0:701:1::21",
-      "kavlan-3": "2001:660:4406:782:1:1::21",
-      "kavlan-4": "2001:660:4406:790:1:1::21",
-      "kavlan-5": "2001:660:4406:791:1:1::21",
-      "kavlan-6": "2001:660:4406:792:1:1::21",
-      "kavlan-7": "2001:660:4406:793:1:1::21",
-      "kavlan-8": "2001:660:4406:794:1:1::21",
-      "kavlan-9": "2001:660:4406:795:1:1::21"
+      "kavlan-1": "2001:660:4406:780:1:1:0:21",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:21",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:21",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:21",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:21",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:21",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:21",
+      "kavlan-2": "2001:660:4406:781:1:1:0:21",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:21",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:21",
+      "kavlan-3": "2001:660:4406:782:1:1:0:21",
+      "kavlan-4": "2001:660:4406:790:1:1:0:21",
+      "kavlan-5": "2001:660:4406:791:1:1:0:21",
+      "kavlan-6": "2001:660:4406:792:1:1:0:21",
+      "kavlan-7": "2001:660:4406:793:1:1:0:21",
+      "kavlan-8": "2001:660:4406:794:1:1:0:21",
+      "kavlan-9": "2001:660:4406:795:1:1:0:21"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.33",
-      "ip6": "2001:660:4406:700:1:0::21",
+      "ip6": "2001:660:4406:700:1::21",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:04:48",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.133",
-      "ip6": "2001:660:4406:700:1:1::21",
+      "ip6": "2001:660:4406:700:1:1:0:21",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:04:4a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-34.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-34.json
index 51082291b9cf4f88481f69f10d29c4b280a067e3..8469d5f7cccfdf833304ff0a3b738f0a23207fdb 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-34.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-34.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::22",
-      "kavlan-11": "2001:660:4406:1a0:701:0::22",
-      "kavlan-12": "2001:660:4406:2a0:701:0::22",
-      "kavlan-13": "2001:660:4406:4a0:701:0::22",
-      "kavlan-14": "2001:660:4406:5a0:701:0::22",
-      "kavlan-16": "2001:660:4406:7a0:701:0::22",
-      "kavlan-18": "2001:660:4406:8a0:701:0::22",
-      "kavlan-2": "2001:660:4406:781:1:0::22",
-      "kavlan-20": "2001:660:4406:3a0:701:0::22",
-      "kavlan-21": "2001:660:4406:6a0:701:0::22",
-      "kavlan-3": "2001:660:4406:782:1:0::22",
-      "kavlan-4": "2001:660:4406:790:1:0::22",
-      "kavlan-5": "2001:660:4406:791:1:0::22",
-      "kavlan-6": "2001:660:4406:792:1:0::22",
-      "kavlan-7": "2001:660:4406:793:1:0::22",
-      "kavlan-8": "2001:660:4406:794:1:0::22",
-      "kavlan-9": "2001:660:4406:795:1:0::22"
+      "kavlan-1": "2001:660:4406:780:1::22",
+      "kavlan-11": "2001:660:4406:1a0:701::22",
+      "kavlan-12": "2001:660:4406:2a0:701::22",
+      "kavlan-13": "2001:660:4406:4a0:701::22",
+      "kavlan-14": "2001:660:4406:5a0:701::22",
+      "kavlan-16": "2001:660:4406:7a0:701::22",
+      "kavlan-18": "2001:660:4406:8a0:701::22",
+      "kavlan-2": "2001:660:4406:781:1::22",
+      "kavlan-20": "2001:660:4406:3a0:701::22",
+      "kavlan-21": "2001:660:4406:6a0:701::22",
+      "kavlan-3": "2001:660:4406:782:1::22",
+      "kavlan-4": "2001:660:4406:790:1::22",
+      "kavlan-5": "2001:660:4406:791:1::22",
+      "kavlan-6": "2001:660:4406:792:1::22",
+      "kavlan-7": "2001:660:4406:793:1::22",
+      "kavlan-8": "2001:660:4406:794:1::22",
+      "kavlan-9": "2001:660:4406:795:1::22"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::22",
-      "kavlan-11": "2001:660:4406:1a0:701:1::22",
-      "kavlan-12": "2001:660:4406:2a0:701:1::22",
-      "kavlan-13": "2001:660:4406:4a0:701:1::22",
-      "kavlan-14": "2001:660:4406:5a0:701:1::22",
-      "kavlan-16": "2001:660:4406:7a0:701:1::22",
-      "kavlan-18": "2001:660:4406:8a0:701:1::22",
-      "kavlan-2": "2001:660:4406:781:1:1::22",
-      "kavlan-20": "2001:660:4406:3a0:701:1::22",
-      "kavlan-21": "2001:660:4406:6a0:701:1::22",
-      "kavlan-3": "2001:660:4406:782:1:1::22",
-      "kavlan-4": "2001:660:4406:790:1:1::22",
-      "kavlan-5": "2001:660:4406:791:1:1::22",
-      "kavlan-6": "2001:660:4406:792:1:1::22",
-      "kavlan-7": "2001:660:4406:793:1:1::22",
-      "kavlan-8": "2001:660:4406:794:1:1::22",
-      "kavlan-9": "2001:660:4406:795:1:1::22"
+      "kavlan-1": "2001:660:4406:780:1:1:0:22",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:22",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:22",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:22",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:22",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:22",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:22",
+      "kavlan-2": "2001:660:4406:781:1:1:0:22",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:22",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:22",
+      "kavlan-3": "2001:660:4406:782:1:1:0:22",
+      "kavlan-4": "2001:660:4406:790:1:1:0:22",
+      "kavlan-5": "2001:660:4406:791:1:1:0:22",
+      "kavlan-6": "2001:660:4406:792:1:1:0:22",
+      "kavlan-7": "2001:660:4406:793:1:1:0:22",
+      "kavlan-8": "2001:660:4406:794:1:1:0:22",
+      "kavlan-9": "2001:660:4406:795:1:1:0:22"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.34",
-      "ip6": "2001:660:4406:700:1:0::22",
+      "ip6": "2001:660:4406:700:1::22",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f5:08",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.134",
-      "ip6": "2001:660:4406:700:1:1::22",
+      "ip6": "2001:660:4406:700:1:1:0:22",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f5:0a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-35.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-35.json
index da4af64239c1c8275853477a1f684864e51b5b3b..1488e42c699783750720f1f8361a4ee32be8ab22 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-35.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-35.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::23",
-      "kavlan-11": "2001:660:4406:1a0:701:0::23",
-      "kavlan-12": "2001:660:4406:2a0:701:0::23",
-      "kavlan-13": "2001:660:4406:4a0:701:0::23",
-      "kavlan-14": "2001:660:4406:5a0:701:0::23",
-      "kavlan-16": "2001:660:4406:7a0:701:0::23",
-      "kavlan-18": "2001:660:4406:8a0:701:0::23",
-      "kavlan-2": "2001:660:4406:781:1:0::23",
-      "kavlan-20": "2001:660:4406:3a0:701:0::23",
-      "kavlan-21": "2001:660:4406:6a0:701:0::23",
-      "kavlan-3": "2001:660:4406:782:1:0::23",
-      "kavlan-4": "2001:660:4406:790:1:0::23",
-      "kavlan-5": "2001:660:4406:791:1:0::23",
-      "kavlan-6": "2001:660:4406:792:1:0::23",
-      "kavlan-7": "2001:660:4406:793:1:0::23",
-      "kavlan-8": "2001:660:4406:794:1:0::23",
-      "kavlan-9": "2001:660:4406:795:1:0::23"
+      "kavlan-1": "2001:660:4406:780:1::23",
+      "kavlan-11": "2001:660:4406:1a0:701::23",
+      "kavlan-12": "2001:660:4406:2a0:701::23",
+      "kavlan-13": "2001:660:4406:4a0:701::23",
+      "kavlan-14": "2001:660:4406:5a0:701::23",
+      "kavlan-16": "2001:660:4406:7a0:701::23",
+      "kavlan-18": "2001:660:4406:8a0:701::23",
+      "kavlan-2": "2001:660:4406:781:1::23",
+      "kavlan-20": "2001:660:4406:3a0:701::23",
+      "kavlan-21": "2001:660:4406:6a0:701::23",
+      "kavlan-3": "2001:660:4406:782:1::23",
+      "kavlan-4": "2001:660:4406:790:1::23",
+      "kavlan-5": "2001:660:4406:791:1::23",
+      "kavlan-6": "2001:660:4406:792:1::23",
+      "kavlan-7": "2001:660:4406:793:1::23",
+      "kavlan-8": "2001:660:4406:794:1::23",
+      "kavlan-9": "2001:660:4406:795:1::23"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::23",
-      "kavlan-11": "2001:660:4406:1a0:701:1::23",
-      "kavlan-12": "2001:660:4406:2a0:701:1::23",
-      "kavlan-13": "2001:660:4406:4a0:701:1::23",
-      "kavlan-14": "2001:660:4406:5a0:701:1::23",
-      "kavlan-16": "2001:660:4406:7a0:701:1::23",
-      "kavlan-18": "2001:660:4406:8a0:701:1::23",
-      "kavlan-2": "2001:660:4406:781:1:1::23",
-      "kavlan-20": "2001:660:4406:3a0:701:1::23",
-      "kavlan-21": "2001:660:4406:6a0:701:1::23",
-      "kavlan-3": "2001:660:4406:782:1:1::23",
-      "kavlan-4": "2001:660:4406:790:1:1::23",
-      "kavlan-5": "2001:660:4406:791:1:1::23",
-      "kavlan-6": "2001:660:4406:792:1:1::23",
-      "kavlan-7": "2001:660:4406:793:1:1::23",
-      "kavlan-8": "2001:660:4406:794:1:1::23",
-      "kavlan-9": "2001:660:4406:795:1:1::23"
+      "kavlan-1": "2001:660:4406:780:1:1:0:23",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:23",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:23",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:23",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:23",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:23",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:23",
+      "kavlan-2": "2001:660:4406:781:1:1:0:23",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:23",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:23",
+      "kavlan-3": "2001:660:4406:782:1:1:0:23",
+      "kavlan-4": "2001:660:4406:790:1:1:0:23",
+      "kavlan-5": "2001:660:4406:791:1:1:0:23",
+      "kavlan-6": "2001:660:4406:792:1:1:0:23",
+      "kavlan-7": "2001:660:4406:793:1:1:0:23",
+      "kavlan-8": "2001:660:4406:794:1:1:0:23",
+      "kavlan-9": "2001:660:4406:795:1:1:0:23"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.35",
-      "ip6": "2001:660:4406:700:1:0::23",
+      "ip6": "2001:660:4406:700:1::23",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:c0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.135",
-      "ip6": "2001:660:4406:700:1:1::23",
+      "ip6": "2001:660:4406:700:1:1:0:23",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:c2",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-36.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-36.json
index f0bf302246515e83a6c29a942cfec72344f14878..8b66d02697b60e179554be1c8d0bfdf13da3b226 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-36.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-36.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::24",
-      "kavlan-11": "2001:660:4406:1a0:701:0::24",
-      "kavlan-12": "2001:660:4406:2a0:701:0::24",
-      "kavlan-13": "2001:660:4406:4a0:701:0::24",
-      "kavlan-14": "2001:660:4406:5a0:701:0::24",
-      "kavlan-16": "2001:660:4406:7a0:701:0::24",
-      "kavlan-18": "2001:660:4406:8a0:701:0::24",
-      "kavlan-2": "2001:660:4406:781:1:0::24",
-      "kavlan-20": "2001:660:4406:3a0:701:0::24",
-      "kavlan-21": "2001:660:4406:6a0:701:0::24",
-      "kavlan-3": "2001:660:4406:782:1:0::24",
-      "kavlan-4": "2001:660:4406:790:1:0::24",
-      "kavlan-5": "2001:660:4406:791:1:0::24",
-      "kavlan-6": "2001:660:4406:792:1:0::24",
-      "kavlan-7": "2001:660:4406:793:1:0::24",
-      "kavlan-8": "2001:660:4406:794:1:0::24",
-      "kavlan-9": "2001:660:4406:795:1:0::24"
+      "kavlan-1": "2001:660:4406:780:1::24",
+      "kavlan-11": "2001:660:4406:1a0:701::24",
+      "kavlan-12": "2001:660:4406:2a0:701::24",
+      "kavlan-13": "2001:660:4406:4a0:701::24",
+      "kavlan-14": "2001:660:4406:5a0:701::24",
+      "kavlan-16": "2001:660:4406:7a0:701::24",
+      "kavlan-18": "2001:660:4406:8a0:701::24",
+      "kavlan-2": "2001:660:4406:781:1::24",
+      "kavlan-20": "2001:660:4406:3a0:701::24",
+      "kavlan-21": "2001:660:4406:6a0:701::24",
+      "kavlan-3": "2001:660:4406:782:1::24",
+      "kavlan-4": "2001:660:4406:790:1::24",
+      "kavlan-5": "2001:660:4406:791:1::24",
+      "kavlan-6": "2001:660:4406:792:1::24",
+      "kavlan-7": "2001:660:4406:793:1::24",
+      "kavlan-8": "2001:660:4406:794:1::24",
+      "kavlan-9": "2001:660:4406:795:1::24"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::24",
-      "kavlan-11": "2001:660:4406:1a0:701:1::24",
-      "kavlan-12": "2001:660:4406:2a0:701:1::24",
-      "kavlan-13": "2001:660:4406:4a0:701:1::24",
-      "kavlan-14": "2001:660:4406:5a0:701:1::24",
-      "kavlan-16": "2001:660:4406:7a0:701:1::24",
-      "kavlan-18": "2001:660:4406:8a0:701:1::24",
-      "kavlan-2": "2001:660:4406:781:1:1::24",
-      "kavlan-20": "2001:660:4406:3a0:701:1::24",
-      "kavlan-21": "2001:660:4406:6a0:701:1::24",
-      "kavlan-3": "2001:660:4406:782:1:1::24",
-      "kavlan-4": "2001:660:4406:790:1:1::24",
-      "kavlan-5": "2001:660:4406:791:1:1::24",
-      "kavlan-6": "2001:660:4406:792:1:1::24",
-      "kavlan-7": "2001:660:4406:793:1:1::24",
-      "kavlan-8": "2001:660:4406:794:1:1::24",
-      "kavlan-9": "2001:660:4406:795:1:1::24"
+      "kavlan-1": "2001:660:4406:780:1:1:0:24",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:24",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:24",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:24",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:24",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:24",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:24",
+      "kavlan-2": "2001:660:4406:781:1:1:0:24",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:24",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:24",
+      "kavlan-3": "2001:660:4406:782:1:1:0:24",
+      "kavlan-4": "2001:660:4406:790:1:1:0:24",
+      "kavlan-5": "2001:660:4406:791:1:1:0:24",
+      "kavlan-6": "2001:660:4406:792:1:1:0:24",
+      "kavlan-7": "2001:660:4406:793:1:1:0:24",
+      "kavlan-8": "2001:660:4406:794:1:1:0:24",
+      "kavlan-9": "2001:660:4406:795:1:1:0:24"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.36",
-      "ip6": "2001:660:4406:700:1:0::24",
+      "ip6": "2001:660:4406:700:1::24",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fe:20",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.136",
-      "ip6": "2001:660:4406:700:1:1::24",
+      "ip6": "2001:660:4406:700:1:1:0:24",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fe:22",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-37.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-37.json
index abe891ef627f1536cf86d090dc790d3624f5231c..e5288c011f1e56a5bbd042b9199234a2bdc3c079 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-37.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-37.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::25",
-      "kavlan-11": "2001:660:4406:1a0:701:0::25",
-      "kavlan-12": "2001:660:4406:2a0:701:0::25",
-      "kavlan-13": "2001:660:4406:4a0:701:0::25",
-      "kavlan-14": "2001:660:4406:5a0:701:0::25",
-      "kavlan-16": "2001:660:4406:7a0:701:0::25",
-      "kavlan-18": "2001:660:4406:8a0:701:0::25",
-      "kavlan-2": "2001:660:4406:781:1:0::25",
-      "kavlan-20": "2001:660:4406:3a0:701:0::25",
-      "kavlan-21": "2001:660:4406:6a0:701:0::25",
-      "kavlan-3": "2001:660:4406:782:1:0::25",
-      "kavlan-4": "2001:660:4406:790:1:0::25",
-      "kavlan-5": "2001:660:4406:791:1:0::25",
-      "kavlan-6": "2001:660:4406:792:1:0::25",
-      "kavlan-7": "2001:660:4406:793:1:0::25",
-      "kavlan-8": "2001:660:4406:794:1:0::25",
-      "kavlan-9": "2001:660:4406:795:1:0::25"
+      "kavlan-1": "2001:660:4406:780:1::25",
+      "kavlan-11": "2001:660:4406:1a0:701::25",
+      "kavlan-12": "2001:660:4406:2a0:701::25",
+      "kavlan-13": "2001:660:4406:4a0:701::25",
+      "kavlan-14": "2001:660:4406:5a0:701::25",
+      "kavlan-16": "2001:660:4406:7a0:701::25",
+      "kavlan-18": "2001:660:4406:8a0:701::25",
+      "kavlan-2": "2001:660:4406:781:1::25",
+      "kavlan-20": "2001:660:4406:3a0:701::25",
+      "kavlan-21": "2001:660:4406:6a0:701::25",
+      "kavlan-3": "2001:660:4406:782:1::25",
+      "kavlan-4": "2001:660:4406:790:1::25",
+      "kavlan-5": "2001:660:4406:791:1::25",
+      "kavlan-6": "2001:660:4406:792:1::25",
+      "kavlan-7": "2001:660:4406:793:1::25",
+      "kavlan-8": "2001:660:4406:794:1::25",
+      "kavlan-9": "2001:660:4406:795:1::25"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::25",
-      "kavlan-11": "2001:660:4406:1a0:701:1::25",
-      "kavlan-12": "2001:660:4406:2a0:701:1::25",
-      "kavlan-13": "2001:660:4406:4a0:701:1::25",
-      "kavlan-14": "2001:660:4406:5a0:701:1::25",
-      "kavlan-16": "2001:660:4406:7a0:701:1::25",
-      "kavlan-18": "2001:660:4406:8a0:701:1::25",
-      "kavlan-2": "2001:660:4406:781:1:1::25",
-      "kavlan-20": "2001:660:4406:3a0:701:1::25",
-      "kavlan-21": "2001:660:4406:6a0:701:1::25",
-      "kavlan-3": "2001:660:4406:782:1:1::25",
-      "kavlan-4": "2001:660:4406:790:1:1::25",
-      "kavlan-5": "2001:660:4406:791:1:1::25",
-      "kavlan-6": "2001:660:4406:792:1:1::25",
-      "kavlan-7": "2001:660:4406:793:1:1::25",
-      "kavlan-8": "2001:660:4406:794:1:1::25",
-      "kavlan-9": "2001:660:4406:795:1:1::25"
+      "kavlan-1": "2001:660:4406:780:1:1:0:25",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:25",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:25",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:25",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:25",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:25",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:25",
+      "kavlan-2": "2001:660:4406:781:1:1:0:25",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:25",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:25",
+      "kavlan-3": "2001:660:4406:782:1:1:0:25",
+      "kavlan-4": "2001:660:4406:790:1:1:0:25",
+      "kavlan-5": "2001:660:4406:791:1:1:0:25",
+      "kavlan-6": "2001:660:4406:792:1:1:0:25",
+      "kavlan-7": "2001:660:4406:793:1:1:0:25",
+      "kavlan-8": "2001:660:4406:794:1:1:0:25",
+      "kavlan-9": "2001:660:4406:795:1:1:0:25"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.37",
-      "ip6": "2001:660:4406:700:1:0::25",
+      "ip6": "2001:660:4406:700:1::25",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f0:d8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.137",
-      "ip6": "2001:660:4406:700:1:1::25",
+      "ip6": "2001:660:4406:700:1:1:0:25",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f0:da",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-38.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-38.json
index c35f4c0f918d172200752182da0198f19e3b7b94..abb018e1dcfbd24bacbad63cfd3ffa7456f8af22 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-38.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-38.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::26",
-      "kavlan-11": "2001:660:4406:1a0:701:0::26",
-      "kavlan-12": "2001:660:4406:2a0:701:0::26",
-      "kavlan-13": "2001:660:4406:4a0:701:0::26",
-      "kavlan-14": "2001:660:4406:5a0:701:0::26",
-      "kavlan-16": "2001:660:4406:7a0:701:0::26",
-      "kavlan-18": "2001:660:4406:8a0:701:0::26",
-      "kavlan-2": "2001:660:4406:781:1:0::26",
-      "kavlan-20": "2001:660:4406:3a0:701:0::26",
-      "kavlan-21": "2001:660:4406:6a0:701:0::26",
-      "kavlan-3": "2001:660:4406:782:1:0::26",
-      "kavlan-4": "2001:660:4406:790:1:0::26",
-      "kavlan-5": "2001:660:4406:791:1:0::26",
-      "kavlan-6": "2001:660:4406:792:1:0::26",
-      "kavlan-7": "2001:660:4406:793:1:0::26",
-      "kavlan-8": "2001:660:4406:794:1:0::26",
-      "kavlan-9": "2001:660:4406:795:1:0::26"
+      "kavlan-1": "2001:660:4406:780:1::26",
+      "kavlan-11": "2001:660:4406:1a0:701::26",
+      "kavlan-12": "2001:660:4406:2a0:701::26",
+      "kavlan-13": "2001:660:4406:4a0:701::26",
+      "kavlan-14": "2001:660:4406:5a0:701::26",
+      "kavlan-16": "2001:660:4406:7a0:701::26",
+      "kavlan-18": "2001:660:4406:8a0:701::26",
+      "kavlan-2": "2001:660:4406:781:1::26",
+      "kavlan-20": "2001:660:4406:3a0:701::26",
+      "kavlan-21": "2001:660:4406:6a0:701::26",
+      "kavlan-3": "2001:660:4406:782:1::26",
+      "kavlan-4": "2001:660:4406:790:1::26",
+      "kavlan-5": "2001:660:4406:791:1::26",
+      "kavlan-6": "2001:660:4406:792:1::26",
+      "kavlan-7": "2001:660:4406:793:1::26",
+      "kavlan-8": "2001:660:4406:794:1::26",
+      "kavlan-9": "2001:660:4406:795:1::26"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::26",
-      "kavlan-11": "2001:660:4406:1a0:701:1::26",
-      "kavlan-12": "2001:660:4406:2a0:701:1::26",
-      "kavlan-13": "2001:660:4406:4a0:701:1::26",
-      "kavlan-14": "2001:660:4406:5a0:701:1::26",
-      "kavlan-16": "2001:660:4406:7a0:701:1::26",
-      "kavlan-18": "2001:660:4406:8a0:701:1::26",
-      "kavlan-2": "2001:660:4406:781:1:1::26",
-      "kavlan-20": "2001:660:4406:3a0:701:1::26",
-      "kavlan-21": "2001:660:4406:6a0:701:1::26",
-      "kavlan-3": "2001:660:4406:782:1:1::26",
-      "kavlan-4": "2001:660:4406:790:1:1::26",
-      "kavlan-5": "2001:660:4406:791:1:1::26",
-      "kavlan-6": "2001:660:4406:792:1:1::26",
-      "kavlan-7": "2001:660:4406:793:1:1::26",
-      "kavlan-8": "2001:660:4406:794:1:1::26",
-      "kavlan-9": "2001:660:4406:795:1:1::26"
+      "kavlan-1": "2001:660:4406:780:1:1:0:26",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:26",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:26",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:26",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:26",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:26",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:26",
+      "kavlan-2": "2001:660:4406:781:1:1:0:26",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:26",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:26",
+      "kavlan-3": "2001:660:4406:782:1:1:0:26",
+      "kavlan-4": "2001:660:4406:790:1:1:0:26",
+      "kavlan-5": "2001:660:4406:791:1:1:0:26",
+      "kavlan-6": "2001:660:4406:792:1:1:0:26",
+      "kavlan-7": "2001:660:4406:793:1:1:0:26",
+      "kavlan-8": "2001:660:4406:794:1:1:0:26",
+      "kavlan-9": "2001:660:4406:795:1:1:0:26"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.38",
-      "ip6": "2001:660:4406:700:1:0::26",
+      "ip6": "2001:660:4406:700:1::26",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fd:e0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.138",
-      "ip6": "2001:660:4406:700:1:1::26",
+      "ip6": "2001:660:4406:700:1:1:0:26",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fd:e2",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-39.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-39.json
index 1e875c63f08089b6dc04383985b4ab1ca45f1dbc..cdb01782f98e0598430e10dad0b905c40ea0769e 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-39.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-39.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::27",
-      "kavlan-11": "2001:660:4406:1a0:701:0::27",
-      "kavlan-12": "2001:660:4406:2a0:701:0::27",
-      "kavlan-13": "2001:660:4406:4a0:701:0::27",
-      "kavlan-14": "2001:660:4406:5a0:701:0::27",
-      "kavlan-16": "2001:660:4406:7a0:701:0::27",
-      "kavlan-18": "2001:660:4406:8a0:701:0::27",
-      "kavlan-2": "2001:660:4406:781:1:0::27",
-      "kavlan-20": "2001:660:4406:3a0:701:0::27",
-      "kavlan-21": "2001:660:4406:6a0:701:0::27",
-      "kavlan-3": "2001:660:4406:782:1:0::27",
-      "kavlan-4": "2001:660:4406:790:1:0::27",
-      "kavlan-5": "2001:660:4406:791:1:0::27",
-      "kavlan-6": "2001:660:4406:792:1:0::27",
-      "kavlan-7": "2001:660:4406:793:1:0::27",
-      "kavlan-8": "2001:660:4406:794:1:0::27",
-      "kavlan-9": "2001:660:4406:795:1:0::27"
+      "kavlan-1": "2001:660:4406:780:1::27",
+      "kavlan-11": "2001:660:4406:1a0:701::27",
+      "kavlan-12": "2001:660:4406:2a0:701::27",
+      "kavlan-13": "2001:660:4406:4a0:701::27",
+      "kavlan-14": "2001:660:4406:5a0:701::27",
+      "kavlan-16": "2001:660:4406:7a0:701::27",
+      "kavlan-18": "2001:660:4406:8a0:701::27",
+      "kavlan-2": "2001:660:4406:781:1::27",
+      "kavlan-20": "2001:660:4406:3a0:701::27",
+      "kavlan-21": "2001:660:4406:6a0:701::27",
+      "kavlan-3": "2001:660:4406:782:1::27",
+      "kavlan-4": "2001:660:4406:790:1::27",
+      "kavlan-5": "2001:660:4406:791:1::27",
+      "kavlan-6": "2001:660:4406:792:1::27",
+      "kavlan-7": "2001:660:4406:793:1::27",
+      "kavlan-8": "2001:660:4406:794:1::27",
+      "kavlan-9": "2001:660:4406:795:1::27"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::27",
-      "kavlan-11": "2001:660:4406:1a0:701:1::27",
-      "kavlan-12": "2001:660:4406:2a0:701:1::27",
-      "kavlan-13": "2001:660:4406:4a0:701:1::27",
-      "kavlan-14": "2001:660:4406:5a0:701:1::27",
-      "kavlan-16": "2001:660:4406:7a0:701:1::27",
-      "kavlan-18": "2001:660:4406:8a0:701:1::27",
-      "kavlan-2": "2001:660:4406:781:1:1::27",
-      "kavlan-20": "2001:660:4406:3a0:701:1::27",
-      "kavlan-21": "2001:660:4406:6a0:701:1::27",
-      "kavlan-3": "2001:660:4406:782:1:1::27",
-      "kavlan-4": "2001:660:4406:790:1:1::27",
-      "kavlan-5": "2001:660:4406:791:1:1::27",
-      "kavlan-6": "2001:660:4406:792:1:1::27",
-      "kavlan-7": "2001:660:4406:793:1:1::27",
-      "kavlan-8": "2001:660:4406:794:1:1::27",
-      "kavlan-9": "2001:660:4406:795:1:1::27"
+      "kavlan-1": "2001:660:4406:780:1:1:0:27",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:27",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:27",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:27",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:27",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:27",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:27",
+      "kavlan-2": "2001:660:4406:781:1:1:0:27",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:27",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:27",
+      "kavlan-3": "2001:660:4406:782:1:1:0:27",
+      "kavlan-4": "2001:660:4406:790:1:1:0:27",
+      "kavlan-5": "2001:660:4406:791:1:1:0:27",
+      "kavlan-6": "2001:660:4406:792:1:1:0:27",
+      "kavlan-7": "2001:660:4406:793:1:1:0:27",
+      "kavlan-8": "2001:660:4406:794:1:1:0:27",
+      "kavlan-9": "2001:660:4406:795:1:1:0:27"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.39",
-      "ip6": "2001:660:4406:700:1:0::27",
+      "ip6": "2001:660:4406:700:1::27",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:d8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.139",
-      "ip6": "2001:660:4406:700:1:1::27",
+      "ip6": "2001:660:4406:700:1:1:0:27",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:da",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-4.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-4.json
index 6c03c86cc1ef269acb890d3d331d1d707124f09e..b585b98cc8cc606d06736b711d24206d8bf4765e 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-4.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-4.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::4",
-      "kavlan-11": "2001:660:4406:1a0:701:0::4",
-      "kavlan-12": "2001:660:4406:2a0:701:0::4",
-      "kavlan-13": "2001:660:4406:4a0:701:0::4",
-      "kavlan-14": "2001:660:4406:5a0:701:0::4",
-      "kavlan-16": "2001:660:4406:7a0:701:0::4",
-      "kavlan-18": "2001:660:4406:8a0:701:0::4",
-      "kavlan-2": "2001:660:4406:781:1:0::4",
-      "kavlan-20": "2001:660:4406:3a0:701:0::4",
-      "kavlan-21": "2001:660:4406:6a0:701:0::4",
-      "kavlan-3": "2001:660:4406:782:1:0::4",
-      "kavlan-4": "2001:660:4406:790:1:0::4",
-      "kavlan-5": "2001:660:4406:791:1:0::4",
-      "kavlan-6": "2001:660:4406:792:1:0::4",
-      "kavlan-7": "2001:660:4406:793:1:0::4",
-      "kavlan-8": "2001:660:4406:794:1:0::4",
-      "kavlan-9": "2001:660:4406:795:1:0::4"
+      "kavlan-1": "2001:660:4406:780:1::4",
+      "kavlan-11": "2001:660:4406:1a0:701::4",
+      "kavlan-12": "2001:660:4406:2a0:701::4",
+      "kavlan-13": "2001:660:4406:4a0:701::4",
+      "kavlan-14": "2001:660:4406:5a0:701::4",
+      "kavlan-16": "2001:660:4406:7a0:701::4",
+      "kavlan-18": "2001:660:4406:8a0:701::4",
+      "kavlan-2": "2001:660:4406:781:1::4",
+      "kavlan-20": "2001:660:4406:3a0:701::4",
+      "kavlan-21": "2001:660:4406:6a0:701::4",
+      "kavlan-3": "2001:660:4406:782:1::4",
+      "kavlan-4": "2001:660:4406:790:1::4",
+      "kavlan-5": "2001:660:4406:791:1::4",
+      "kavlan-6": "2001:660:4406:792:1::4",
+      "kavlan-7": "2001:660:4406:793:1::4",
+      "kavlan-8": "2001:660:4406:794:1::4",
+      "kavlan-9": "2001:660:4406:795:1::4"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::4",
-      "kavlan-11": "2001:660:4406:1a0:701:1::4",
-      "kavlan-12": "2001:660:4406:2a0:701:1::4",
-      "kavlan-13": "2001:660:4406:4a0:701:1::4",
-      "kavlan-14": "2001:660:4406:5a0:701:1::4",
-      "kavlan-16": "2001:660:4406:7a0:701:1::4",
-      "kavlan-18": "2001:660:4406:8a0:701:1::4",
-      "kavlan-2": "2001:660:4406:781:1:1::4",
-      "kavlan-20": "2001:660:4406:3a0:701:1::4",
-      "kavlan-21": "2001:660:4406:6a0:701:1::4",
-      "kavlan-3": "2001:660:4406:782:1:1::4",
-      "kavlan-4": "2001:660:4406:790:1:1::4",
-      "kavlan-5": "2001:660:4406:791:1:1::4",
-      "kavlan-6": "2001:660:4406:792:1:1::4",
-      "kavlan-7": "2001:660:4406:793:1:1::4",
-      "kavlan-8": "2001:660:4406:794:1:1::4",
-      "kavlan-9": "2001:660:4406:795:1:1::4"
+      "kavlan-1": "2001:660:4406:780:1:1:0:4",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:4",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:4",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:4",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:4",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:4",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:4",
+      "kavlan-2": "2001:660:4406:781:1:1:0:4",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:4",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:4",
+      "kavlan-3": "2001:660:4406:782:1:1:0:4",
+      "kavlan-4": "2001:660:4406:790:1:1:0:4",
+      "kavlan-5": "2001:660:4406:791:1:1:0:4",
+      "kavlan-6": "2001:660:4406:792:1:1:0:4",
+      "kavlan-7": "2001:660:4406:793:1:1:0:4",
+      "kavlan-8": "2001:660:4406:794:1:1:0:4",
+      "kavlan-9": "2001:660:4406:795:1:1:0:4"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.4",
-      "ip6": "2001:660:4406:700:1:0::4",
+      "ip6": "2001:660:4406:700:1::4",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:40",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.104",
-      "ip6": "2001:660:4406:700:1:1::4",
+      "ip6": "2001:660:4406:700:1:1:0:4",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:42",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-40.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-40.json
index a49c05d57dde96c0e35ebd555ec02f4a445d955b..a808a1da2b08e468c5c201cfe3d97eae7cb002c2 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-40.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-40.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::28",
-      "kavlan-11": "2001:660:4406:1a0:701:0::28",
-      "kavlan-12": "2001:660:4406:2a0:701:0::28",
-      "kavlan-13": "2001:660:4406:4a0:701:0::28",
-      "kavlan-14": "2001:660:4406:5a0:701:0::28",
-      "kavlan-16": "2001:660:4406:7a0:701:0::28",
-      "kavlan-18": "2001:660:4406:8a0:701:0::28",
-      "kavlan-2": "2001:660:4406:781:1:0::28",
-      "kavlan-20": "2001:660:4406:3a0:701:0::28",
-      "kavlan-21": "2001:660:4406:6a0:701:0::28",
-      "kavlan-3": "2001:660:4406:782:1:0::28",
-      "kavlan-4": "2001:660:4406:790:1:0::28",
-      "kavlan-5": "2001:660:4406:791:1:0::28",
-      "kavlan-6": "2001:660:4406:792:1:0::28",
-      "kavlan-7": "2001:660:4406:793:1:0::28",
-      "kavlan-8": "2001:660:4406:794:1:0::28",
-      "kavlan-9": "2001:660:4406:795:1:0::28"
+      "kavlan-1": "2001:660:4406:780:1::28",
+      "kavlan-11": "2001:660:4406:1a0:701::28",
+      "kavlan-12": "2001:660:4406:2a0:701::28",
+      "kavlan-13": "2001:660:4406:4a0:701::28",
+      "kavlan-14": "2001:660:4406:5a0:701::28",
+      "kavlan-16": "2001:660:4406:7a0:701::28",
+      "kavlan-18": "2001:660:4406:8a0:701::28",
+      "kavlan-2": "2001:660:4406:781:1::28",
+      "kavlan-20": "2001:660:4406:3a0:701::28",
+      "kavlan-21": "2001:660:4406:6a0:701::28",
+      "kavlan-3": "2001:660:4406:782:1::28",
+      "kavlan-4": "2001:660:4406:790:1::28",
+      "kavlan-5": "2001:660:4406:791:1::28",
+      "kavlan-6": "2001:660:4406:792:1::28",
+      "kavlan-7": "2001:660:4406:793:1::28",
+      "kavlan-8": "2001:660:4406:794:1::28",
+      "kavlan-9": "2001:660:4406:795:1::28"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::28",
-      "kavlan-11": "2001:660:4406:1a0:701:1::28",
-      "kavlan-12": "2001:660:4406:2a0:701:1::28",
-      "kavlan-13": "2001:660:4406:4a0:701:1::28",
-      "kavlan-14": "2001:660:4406:5a0:701:1::28",
-      "kavlan-16": "2001:660:4406:7a0:701:1::28",
-      "kavlan-18": "2001:660:4406:8a0:701:1::28",
-      "kavlan-2": "2001:660:4406:781:1:1::28",
-      "kavlan-20": "2001:660:4406:3a0:701:1::28",
-      "kavlan-21": "2001:660:4406:6a0:701:1::28",
-      "kavlan-3": "2001:660:4406:782:1:1::28",
-      "kavlan-4": "2001:660:4406:790:1:1::28",
-      "kavlan-5": "2001:660:4406:791:1:1::28",
-      "kavlan-6": "2001:660:4406:792:1:1::28",
-      "kavlan-7": "2001:660:4406:793:1:1::28",
-      "kavlan-8": "2001:660:4406:794:1:1::28",
-      "kavlan-9": "2001:660:4406:795:1:1::28"
+      "kavlan-1": "2001:660:4406:780:1:1:0:28",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:28",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:28",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:28",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:28",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:28",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:28",
+      "kavlan-2": "2001:660:4406:781:1:1:0:28",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:28",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:28",
+      "kavlan-3": "2001:660:4406:782:1:1:0:28",
+      "kavlan-4": "2001:660:4406:790:1:1:0:28",
+      "kavlan-5": "2001:660:4406:791:1:1:0:28",
+      "kavlan-6": "2001:660:4406:792:1:1:0:28",
+      "kavlan-7": "2001:660:4406:793:1:1:0:28",
+      "kavlan-8": "2001:660:4406:794:1:1:0:28",
+      "kavlan-9": "2001:660:4406:795:1:1:0:28"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.40",
-      "ip6": "2001:660:4406:700:1:0::28",
+      "ip6": "2001:660:4406:700:1::28",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f8:20",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.140",
-      "ip6": "2001:660:4406:700:1:1::28",
+      "ip6": "2001:660:4406:700:1:1:0:28",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f8:22",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-41.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-41.json
index bbdc7e42d67cc967b8373bca7e8c9d7eb519fd24..578fb2446b736ee608af1f689ea2c6fb081f50fd 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-41.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-41.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::29",
-      "kavlan-11": "2001:660:4406:1a0:701:0::29",
-      "kavlan-12": "2001:660:4406:2a0:701:0::29",
-      "kavlan-13": "2001:660:4406:4a0:701:0::29",
-      "kavlan-14": "2001:660:4406:5a0:701:0::29",
-      "kavlan-16": "2001:660:4406:7a0:701:0::29",
-      "kavlan-18": "2001:660:4406:8a0:701:0::29",
-      "kavlan-2": "2001:660:4406:781:1:0::29",
-      "kavlan-20": "2001:660:4406:3a0:701:0::29",
-      "kavlan-21": "2001:660:4406:6a0:701:0::29",
-      "kavlan-3": "2001:660:4406:782:1:0::29",
-      "kavlan-4": "2001:660:4406:790:1:0::29",
-      "kavlan-5": "2001:660:4406:791:1:0::29",
-      "kavlan-6": "2001:660:4406:792:1:0::29",
-      "kavlan-7": "2001:660:4406:793:1:0::29",
-      "kavlan-8": "2001:660:4406:794:1:0::29",
-      "kavlan-9": "2001:660:4406:795:1:0::29"
+      "kavlan-1": "2001:660:4406:780:1::29",
+      "kavlan-11": "2001:660:4406:1a0:701::29",
+      "kavlan-12": "2001:660:4406:2a0:701::29",
+      "kavlan-13": "2001:660:4406:4a0:701::29",
+      "kavlan-14": "2001:660:4406:5a0:701::29",
+      "kavlan-16": "2001:660:4406:7a0:701::29",
+      "kavlan-18": "2001:660:4406:8a0:701::29",
+      "kavlan-2": "2001:660:4406:781:1::29",
+      "kavlan-20": "2001:660:4406:3a0:701::29",
+      "kavlan-21": "2001:660:4406:6a0:701::29",
+      "kavlan-3": "2001:660:4406:782:1::29",
+      "kavlan-4": "2001:660:4406:790:1::29",
+      "kavlan-5": "2001:660:4406:791:1::29",
+      "kavlan-6": "2001:660:4406:792:1::29",
+      "kavlan-7": "2001:660:4406:793:1::29",
+      "kavlan-8": "2001:660:4406:794:1::29",
+      "kavlan-9": "2001:660:4406:795:1::29"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::29",
-      "kavlan-11": "2001:660:4406:1a0:701:1::29",
-      "kavlan-12": "2001:660:4406:2a0:701:1::29",
-      "kavlan-13": "2001:660:4406:4a0:701:1::29",
-      "kavlan-14": "2001:660:4406:5a0:701:1::29",
-      "kavlan-16": "2001:660:4406:7a0:701:1::29",
-      "kavlan-18": "2001:660:4406:8a0:701:1::29",
-      "kavlan-2": "2001:660:4406:781:1:1::29",
-      "kavlan-20": "2001:660:4406:3a0:701:1::29",
-      "kavlan-21": "2001:660:4406:6a0:701:1::29",
-      "kavlan-3": "2001:660:4406:782:1:1::29",
-      "kavlan-4": "2001:660:4406:790:1:1::29",
-      "kavlan-5": "2001:660:4406:791:1:1::29",
-      "kavlan-6": "2001:660:4406:792:1:1::29",
-      "kavlan-7": "2001:660:4406:793:1:1::29",
-      "kavlan-8": "2001:660:4406:794:1:1::29",
-      "kavlan-9": "2001:660:4406:795:1:1::29"
+      "kavlan-1": "2001:660:4406:780:1:1:0:29",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:29",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:29",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:29",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:29",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:29",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:29",
+      "kavlan-2": "2001:660:4406:781:1:1:0:29",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:29",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:29",
+      "kavlan-3": "2001:660:4406:782:1:1:0:29",
+      "kavlan-4": "2001:660:4406:790:1:1:0:29",
+      "kavlan-5": "2001:660:4406:791:1:1:0:29",
+      "kavlan-6": "2001:660:4406:792:1:1:0:29",
+      "kavlan-7": "2001:660:4406:793:1:1:0:29",
+      "kavlan-8": "2001:660:4406:794:1:1:0:29",
+      "kavlan-9": "2001:660:4406:795:1:1:0:29"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.41",
-      "ip6": "2001:660:4406:700:1:0::29",
+      "ip6": "2001:660:4406:700:1::29",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f0:f8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.141",
-      "ip6": "2001:660:4406:700:1:1::29",
+      "ip6": "2001:660:4406:700:1:1:0:29",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f0:fa",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-42.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-42.json
index 016fa689a7379eb7cf6d8bed84740d9e632ba090..37bb4d5550288e0686f9d4d1039dc0d8ac1d9589 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-42.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-42.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::2a",
-      "kavlan-11": "2001:660:4406:1a0:701:0::2a",
-      "kavlan-12": "2001:660:4406:2a0:701:0::2a",
-      "kavlan-13": "2001:660:4406:4a0:701:0::2a",
-      "kavlan-14": "2001:660:4406:5a0:701:0::2a",
-      "kavlan-16": "2001:660:4406:7a0:701:0::2a",
-      "kavlan-18": "2001:660:4406:8a0:701:0::2a",
-      "kavlan-2": "2001:660:4406:781:1:0::2a",
-      "kavlan-20": "2001:660:4406:3a0:701:0::2a",
-      "kavlan-21": "2001:660:4406:6a0:701:0::2a",
-      "kavlan-3": "2001:660:4406:782:1:0::2a",
-      "kavlan-4": "2001:660:4406:790:1:0::2a",
-      "kavlan-5": "2001:660:4406:791:1:0::2a",
-      "kavlan-6": "2001:660:4406:792:1:0::2a",
-      "kavlan-7": "2001:660:4406:793:1:0::2a",
-      "kavlan-8": "2001:660:4406:794:1:0::2a",
-      "kavlan-9": "2001:660:4406:795:1:0::2a"
+      "kavlan-1": "2001:660:4406:780:1::2a",
+      "kavlan-11": "2001:660:4406:1a0:701::2a",
+      "kavlan-12": "2001:660:4406:2a0:701::2a",
+      "kavlan-13": "2001:660:4406:4a0:701::2a",
+      "kavlan-14": "2001:660:4406:5a0:701::2a",
+      "kavlan-16": "2001:660:4406:7a0:701::2a",
+      "kavlan-18": "2001:660:4406:8a0:701::2a",
+      "kavlan-2": "2001:660:4406:781:1::2a",
+      "kavlan-20": "2001:660:4406:3a0:701::2a",
+      "kavlan-21": "2001:660:4406:6a0:701::2a",
+      "kavlan-3": "2001:660:4406:782:1::2a",
+      "kavlan-4": "2001:660:4406:790:1::2a",
+      "kavlan-5": "2001:660:4406:791:1::2a",
+      "kavlan-6": "2001:660:4406:792:1::2a",
+      "kavlan-7": "2001:660:4406:793:1::2a",
+      "kavlan-8": "2001:660:4406:794:1::2a",
+      "kavlan-9": "2001:660:4406:795:1::2a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::2a",
-      "kavlan-11": "2001:660:4406:1a0:701:1::2a",
-      "kavlan-12": "2001:660:4406:2a0:701:1::2a",
-      "kavlan-13": "2001:660:4406:4a0:701:1::2a",
-      "kavlan-14": "2001:660:4406:5a0:701:1::2a",
-      "kavlan-16": "2001:660:4406:7a0:701:1::2a",
-      "kavlan-18": "2001:660:4406:8a0:701:1::2a",
-      "kavlan-2": "2001:660:4406:781:1:1::2a",
-      "kavlan-20": "2001:660:4406:3a0:701:1::2a",
-      "kavlan-21": "2001:660:4406:6a0:701:1::2a",
-      "kavlan-3": "2001:660:4406:782:1:1::2a",
-      "kavlan-4": "2001:660:4406:790:1:1::2a",
-      "kavlan-5": "2001:660:4406:791:1:1::2a",
-      "kavlan-6": "2001:660:4406:792:1:1::2a",
-      "kavlan-7": "2001:660:4406:793:1:1::2a",
-      "kavlan-8": "2001:660:4406:794:1:1::2a",
-      "kavlan-9": "2001:660:4406:795:1:1::2a"
+      "kavlan-1": "2001:660:4406:780:1:1:0:2a",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:2a",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:2a",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:2a",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:2a",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:2a",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:2a",
+      "kavlan-2": "2001:660:4406:781:1:1:0:2a",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:2a",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:2a",
+      "kavlan-3": "2001:660:4406:782:1:1:0:2a",
+      "kavlan-4": "2001:660:4406:790:1:1:0:2a",
+      "kavlan-5": "2001:660:4406:791:1:1:0:2a",
+      "kavlan-6": "2001:660:4406:792:1:1:0:2a",
+      "kavlan-7": "2001:660:4406:793:1:1:0:2a",
+      "kavlan-8": "2001:660:4406:794:1:1:0:2a",
+      "kavlan-9": "2001:660:4406:795:1:1:0:2a"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.42",
-      "ip6": "2001:660:4406:700:1:0::2a",
+      "ip6": "2001:660:4406:700:1::2a",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fe:d0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.142",
-      "ip6": "2001:660:4406:700:1:1::2a",
+      "ip6": "2001:660:4406:700:1:1:0:2a",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fe:d2",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-43.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-43.json
index b672d83e9835e03724a12458ad641d810a61d182..8339af7b87948b94ba0cd052d6a927f527331219 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-43.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-43.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::2b",
-      "kavlan-11": "2001:660:4406:1a0:701:0::2b",
-      "kavlan-12": "2001:660:4406:2a0:701:0::2b",
-      "kavlan-13": "2001:660:4406:4a0:701:0::2b",
-      "kavlan-14": "2001:660:4406:5a0:701:0::2b",
-      "kavlan-16": "2001:660:4406:7a0:701:0::2b",
-      "kavlan-18": "2001:660:4406:8a0:701:0::2b",
-      "kavlan-2": "2001:660:4406:781:1:0::2b",
-      "kavlan-20": "2001:660:4406:3a0:701:0::2b",
-      "kavlan-21": "2001:660:4406:6a0:701:0::2b",
-      "kavlan-3": "2001:660:4406:782:1:0::2b",
-      "kavlan-4": "2001:660:4406:790:1:0::2b",
-      "kavlan-5": "2001:660:4406:791:1:0::2b",
-      "kavlan-6": "2001:660:4406:792:1:0::2b",
-      "kavlan-7": "2001:660:4406:793:1:0::2b",
-      "kavlan-8": "2001:660:4406:794:1:0::2b",
-      "kavlan-9": "2001:660:4406:795:1:0::2b"
+      "kavlan-1": "2001:660:4406:780:1::2b",
+      "kavlan-11": "2001:660:4406:1a0:701::2b",
+      "kavlan-12": "2001:660:4406:2a0:701::2b",
+      "kavlan-13": "2001:660:4406:4a0:701::2b",
+      "kavlan-14": "2001:660:4406:5a0:701::2b",
+      "kavlan-16": "2001:660:4406:7a0:701::2b",
+      "kavlan-18": "2001:660:4406:8a0:701::2b",
+      "kavlan-2": "2001:660:4406:781:1::2b",
+      "kavlan-20": "2001:660:4406:3a0:701::2b",
+      "kavlan-21": "2001:660:4406:6a0:701::2b",
+      "kavlan-3": "2001:660:4406:782:1::2b",
+      "kavlan-4": "2001:660:4406:790:1::2b",
+      "kavlan-5": "2001:660:4406:791:1::2b",
+      "kavlan-6": "2001:660:4406:792:1::2b",
+      "kavlan-7": "2001:660:4406:793:1::2b",
+      "kavlan-8": "2001:660:4406:794:1::2b",
+      "kavlan-9": "2001:660:4406:795:1::2b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::2b",
-      "kavlan-11": "2001:660:4406:1a0:701:1::2b",
-      "kavlan-12": "2001:660:4406:2a0:701:1::2b",
-      "kavlan-13": "2001:660:4406:4a0:701:1::2b",
-      "kavlan-14": "2001:660:4406:5a0:701:1::2b",
-      "kavlan-16": "2001:660:4406:7a0:701:1::2b",
-      "kavlan-18": "2001:660:4406:8a0:701:1::2b",
-      "kavlan-2": "2001:660:4406:781:1:1::2b",
-      "kavlan-20": "2001:660:4406:3a0:701:1::2b",
-      "kavlan-21": "2001:660:4406:6a0:701:1::2b",
-      "kavlan-3": "2001:660:4406:782:1:1::2b",
-      "kavlan-4": "2001:660:4406:790:1:1::2b",
-      "kavlan-5": "2001:660:4406:791:1:1::2b",
-      "kavlan-6": "2001:660:4406:792:1:1::2b",
-      "kavlan-7": "2001:660:4406:793:1:1::2b",
-      "kavlan-8": "2001:660:4406:794:1:1::2b",
-      "kavlan-9": "2001:660:4406:795:1:1::2b"
+      "kavlan-1": "2001:660:4406:780:1:1:0:2b",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:2b",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:2b",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:2b",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:2b",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:2b",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:2b",
+      "kavlan-2": "2001:660:4406:781:1:1:0:2b",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:2b",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:2b",
+      "kavlan-3": "2001:660:4406:782:1:1:0:2b",
+      "kavlan-4": "2001:660:4406:790:1:1:0:2b",
+      "kavlan-5": "2001:660:4406:791:1:1:0:2b",
+      "kavlan-6": "2001:660:4406:792:1:1:0:2b",
+      "kavlan-7": "2001:660:4406:793:1:1:0:2b",
+      "kavlan-8": "2001:660:4406:794:1:1:0:2b",
+      "kavlan-9": "2001:660:4406:795:1:1:0:2b"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.43",
-      "ip6": "2001:660:4406:700:1:0::2b",
+      "ip6": "2001:660:4406:700:1::2b",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fa:38",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.143",
-      "ip6": "2001:660:4406:700:1:1::2b",
+      "ip6": "2001:660:4406:700:1:1:0:2b",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fa:3a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-44.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-44.json
index cd819e60fc4257c67fd388bc4afbf4618d6cac83..f0c6556424edea8ac38695550e20dc18e4133be9 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-44.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-44.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::2c",
-      "kavlan-11": "2001:660:4406:1a0:701:0::2c",
-      "kavlan-12": "2001:660:4406:2a0:701:0::2c",
-      "kavlan-13": "2001:660:4406:4a0:701:0::2c",
-      "kavlan-14": "2001:660:4406:5a0:701:0::2c",
-      "kavlan-16": "2001:660:4406:7a0:701:0::2c",
-      "kavlan-18": "2001:660:4406:8a0:701:0::2c",
-      "kavlan-2": "2001:660:4406:781:1:0::2c",
-      "kavlan-20": "2001:660:4406:3a0:701:0::2c",
-      "kavlan-21": "2001:660:4406:6a0:701:0::2c",
-      "kavlan-3": "2001:660:4406:782:1:0::2c",
-      "kavlan-4": "2001:660:4406:790:1:0::2c",
-      "kavlan-5": "2001:660:4406:791:1:0::2c",
-      "kavlan-6": "2001:660:4406:792:1:0::2c",
-      "kavlan-7": "2001:660:4406:793:1:0::2c",
-      "kavlan-8": "2001:660:4406:794:1:0::2c",
-      "kavlan-9": "2001:660:4406:795:1:0::2c"
+      "kavlan-1": "2001:660:4406:780:1::2c",
+      "kavlan-11": "2001:660:4406:1a0:701::2c",
+      "kavlan-12": "2001:660:4406:2a0:701::2c",
+      "kavlan-13": "2001:660:4406:4a0:701::2c",
+      "kavlan-14": "2001:660:4406:5a0:701::2c",
+      "kavlan-16": "2001:660:4406:7a0:701::2c",
+      "kavlan-18": "2001:660:4406:8a0:701::2c",
+      "kavlan-2": "2001:660:4406:781:1::2c",
+      "kavlan-20": "2001:660:4406:3a0:701::2c",
+      "kavlan-21": "2001:660:4406:6a0:701::2c",
+      "kavlan-3": "2001:660:4406:782:1::2c",
+      "kavlan-4": "2001:660:4406:790:1::2c",
+      "kavlan-5": "2001:660:4406:791:1::2c",
+      "kavlan-6": "2001:660:4406:792:1::2c",
+      "kavlan-7": "2001:660:4406:793:1::2c",
+      "kavlan-8": "2001:660:4406:794:1::2c",
+      "kavlan-9": "2001:660:4406:795:1::2c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::2c",
-      "kavlan-11": "2001:660:4406:1a0:701:1::2c",
-      "kavlan-12": "2001:660:4406:2a0:701:1::2c",
-      "kavlan-13": "2001:660:4406:4a0:701:1::2c",
-      "kavlan-14": "2001:660:4406:5a0:701:1::2c",
-      "kavlan-16": "2001:660:4406:7a0:701:1::2c",
-      "kavlan-18": "2001:660:4406:8a0:701:1::2c",
-      "kavlan-2": "2001:660:4406:781:1:1::2c",
-      "kavlan-20": "2001:660:4406:3a0:701:1::2c",
-      "kavlan-21": "2001:660:4406:6a0:701:1::2c",
-      "kavlan-3": "2001:660:4406:782:1:1::2c",
-      "kavlan-4": "2001:660:4406:790:1:1::2c",
-      "kavlan-5": "2001:660:4406:791:1:1::2c",
-      "kavlan-6": "2001:660:4406:792:1:1::2c",
-      "kavlan-7": "2001:660:4406:793:1:1::2c",
-      "kavlan-8": "2001:660:4406:794:1:1::2c",
-      "kavlan-9": "2001:660:4406:795:1:1::2c"
+      "kavlan-1": "2001:660:4406:780:1:1:0:2c",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:2c",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:2c",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:2c",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:2c",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:2c",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:2c",
+      "kavlan-2": "2001:660:4406:781:1:1:0:2c",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:2c",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:2c",
+      "kavlan-3": "2001:660:4406:782:1:1:0:2c",
+      "kavlan-4": "2001:660:4406:790:1:1:0:2c",
+      "kavlan-5": "2001:660:4406:791:1:1:0:2c",
+      "kavlan-6": "2001:660:4406:792:1:1:0:2c",
+      "kavlan-7": "2001:660:4406:793:1:1:0:2c",
+      "kavlan-8": "2001:660:4406:794:1:1:0:2c",
+      "kavlan-9": "2001:660:4406:795:1:1:0:2c"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.44",
-      "ip6": "2001:660:4406:700:1:0::2c",
+      "ip6": "2001:660:4406:700:1::2c",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:eb:50",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.144",
-      "ip6": "2001:660:4406:700:1:1::2c",
+      "ip6": "2001:660:4406:700:1:1:0:2c",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:eb:52",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-45.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-45.json
index d013b678bbfe939135d23dee2433ab27d20d4641..92dd644fc0b938b335405e512b2f53b41634c338 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-45.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-45.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::2d",
-      "kavlan-11": "2001:660:4406:1a0:701:0::2d",
-      "kavlan-12": "2001:660:4406:2a0:701:0::2d",
-      "kavlan-13": "2001:660:4406:4a0:701:0::2d",
-      "kavlan-14": "2001:660:4406:5a0:701:0::2d",
-      "kavlan-16": "2001:660:4406:7a0:701:0::2d",
-      "kavlan-18": "2001:660:4406:8a0:701:0::2d",
-      "kavlan-2": "2001:660:4406:781:1:0::2d",
-      "kavlan-20": "2001:660:4406:3a0:701:0::2d",
-      "kavlan-21": "2001:660:4406:6a0:701:0::2d",
-      "kavlan-3": "2001:660:4406:782:1:0::2d",
-      "kavlan-4": "2001:660:4406:790:1:0::2d",
-      "kavlan-5": "2001:660:4406:791:1:0::2d",
-      "kavlan-6": "2001:660:4406:792:1:0::2d",
-      "kavlan-7": "2001:660:4406:793:1:0::2d",
-      "kavlan-8": "2001:660:4406:794:1:0::2d",
-      "kavlan-9": "2001:660:4406:795:1:0::2d"
+      "kavlan-1": "2001:660:4406:780:1::2d",
+      "kavlan-11": "2001:660:4406:1a0:701::2d",
+      "kavlan-12": "2001:660:4406:2a0:701::2d",
+      "kavlan-13": "2001:660:4406:4a0:701::2d",
+      "kavlan-14": "2001:660:4406:5a0:701::2d",
+      "kavlan-16": "2001:660:4406:7a0:701::2d",
+      "kavlan-18": "2001:660:4406:8a0:701::2d",
+      "kavlan-2": "2001:660:4406:781:1::2d",
+      "kavlan-20": "2001:660:4406:3a0:701::2d",
+      "kavlan-21": "2001:660:4406:6a0:701::2d",
+      "kavlan-3": "2001:660:4406:782:1::2d",
+      "kavlan-4": "2001:660:4406:790:1::2d",
+      "kavlan-5": "2001:660:4406:791:1::2d",
+      "kavlan-6": "2001:660:4406:792:1::2d",
+      "kavlan-7": "2001:660:4406:793:1::2d",
+      "kavlan-8": "2001:660:4406:794:1::2d",
+      "kavlan-9": "2001:660:4406:795:1::2d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::2d",
-      "kavlan-11": "2001:660:4406:1a0:701:1::2d",
-      "kavlan-12": "2001:660:4406:2a0:701:1::2d",
-      "kavlan-13": "2001:660:4406:4a0:701:1::2d",
-      "kavlan-14": "2001:660:4406:5a0:701:1::2d",
-      "kavlan-16": "2001:660:4406:7a0:701:1::2d",
-      "kavlan-18": "2001:660:4406:8a0:701:1::2d",
-      "kavlan-2": "2001:660:4406:781:1:1::2d",
-      "kavlan-20": "2001:660:4406:3a0:701:1::2d",
-      "kavlan-21": "2001:660:4406:6a0:701:1::2d",
-      "kavlan-3": "2001:660:4406:782:1:1::2d",
-      "kavlan-4": "2001:660:4406:790:1:1::2d",
-      "kavlan-5": "2001:660:4406:791:1:1::2d",
-      "kavlan-6": "2001:660:4406:792:1:1::2d",
-      "kavlan-7": "2001:660:4406:793:1:1::2d",
-      "kavlan-8": "2001:660:4406:794:1:1::2d",
-      "kavlan-9": "2001:660:4406:795:1:1::2d"
+      "kavlan-1": "2001:660:4406:780:1:1:0:2d",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:2d",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:2d",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:2d",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:2d",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:2d",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:2d",
+      "kavlan-2": "2001:660:4406:781:1:1:0:2d",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:2d",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:2d",
+      "kavlan-3": "2001:660:4406:782:1:1:0:2d",
+      "kavlan-4": "2001:660:4406:790:1:1:0:2d",
+      "kavlan-5": "2001:660:4406:791:1:1:0:2d",
+      "kavlan-6": "2001:660:4406:792:1:1:0:2d",
+      "kavlan-7": "2001:660:4406:793:1:1:0:2d",
+      "kavlan-8": "2001:660:4406:794:1:1:0:2d",
+      "kavlan-9": "2001:660:4406:795:1:1:0:2d"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.45",
-      "ip6": "2001:660:4406:700:1:0::2d",
+      "ip6": "2001:660:4406:700:1::2d",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ee:20",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.145",
-      "ip6": "2001:660:4406:700:1:1::2d",
+      "ip6": "2001:660:4406:700:1:1:0:2d",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ee:22",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-46.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-46.json
index b160d69c97817b0e3bec423e2bcb1799b520a34c..add114311ff5640e1816aa425936555958d5830e 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-46.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-46.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::2e",
-      "kavlan-11": "2001:660:4406:1a0:701:0::2e",
-      "kavlan-12": "2001:660:4406:2a0:701:0::2e",
-      "kavlan-13": "2001:660:4406:4a0:701:0::2e",
-      "kavlan-14": "2001:660:4406:5a0:701:0::2e",
-      "kavlan-16": "2001:660:4406:7a0:701:0::2e",
-      "kavlan-18": "2001:660:4406:8a0:701:0::2e",
-      "kavlan-2": "2001:660:4406:781:1:0::2e",
-      "kavlan-20": "2001:660:4406:3a0:701:0::2e",
-      "kavlan-21": "2001:660:4406:6a0:701:0::2e",
-      "kavlan-3": "2001:660:4406:782:1:0::2e",
-      "kavlan-4": "2001:660:4406:790:1:0::2e",
-      "kavlan-5": "2001:660:4406:791:1:0::2e",
-      "kavlan-6": "2001:660:4406:792:1:0::2e",
-      "kavlan-7": "2001:660:4406:793:1:0::2e",
-      "kavlan-8": "2001:660:4406:794:1:0::2e",
-      "kavlan-9": "2001:660:4406:795:1:0::2e"
+      "kavlan-1": "2001:660:4406:780:1::2e",
+      "kavlan-11": "2001:660:4406:1a0:701::2e",
+      "kavlan-12": "2001:660:4406:2a0:701::2e",
+      "kavlan-13": "2001:660:4406:4a0:701::2e",
+      "kavlan-14": "2001:660:4406:5a0:701::2e",
+      "kavlan-16": "2001:660:4406:7a0:701::2e",
+      "kavlan-18": "2001:660:4406:8a0:701::2e",
+      "kavlan-2": "2001:660:4406:781:1::2e",
+      "kavlan-20": "2001:660:4406:3a0:701::2e",
+      "kavlan-21": "2001:660:4406:6a0:701::2e",
+      "kavlan-3": "2001:660:4406:782:1::2e",
+      "kavlan-4": "2001:660:4406:790:1::2e",
+      "kavlan-5": "2001:660:4406:791:1::2e",
+      "kavlan-6": "2001:660:4406:792:1::2e",
+      "kavlan-7": "2001:660:4406:793:1::2e",
+      "kavlan-8": "2001:660:4406:794:1::2e",
+      "kavlan-9": "2001:660:4406:795:1::2e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::2e",
-      "kavlan-11": "2001:660:4406:1a0:701:1::2e",
-      "kavlan-12": "2001:660:4406:2a0:701:1::2e",
-      "kavlan-13": "2001:660:4406:4a0:701:1::2e",
-      "kavlan-14": "2001:660:4406:5a0:701:1::2e",
-      "kavlan-16": "2001:660:4406:7a0:701:1::2e",
-      "kavlan-18": "2001:660:4406:8a0:701:1::2e",
-      "kavlan-2": "2001:660:4406:781:1:1::2e",
-      "kavlan-20": "2001:660:4406:3a0:701:1::2e",
-      "kavlan-21": "2001:660:4406:6a0:701:1::2e",
-      "kavlan-3": "2001:660:4406:782:1:1::2e",
-      "kavlan-4": "2001:660:4406:790:1:1::2e",
-      "kavlan-5": "2001:660:4406:791:1:1::2e",
-      "kavlan-6": "2001:660:4406:792:1:1::2e",
-      "kavlan-7": "2001:660:4406:793:1:1::2e",
-      "kavlan-8": "2001:660:4406:794:1:1::2e",
-      "kavlan-9": "2001:660:4406:795:1:1::2e"
+      "kavlan-1": "2001:660:4406:780:1:1:0:2e",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:2e",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:2e",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:2e",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:2e",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:2e",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:2e",
+      "kavlan-2": "2001:660:4406:781:1:1:0:2e",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:2e",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:2e",
+      "kavlan-3": "2001:660:4406:782:1:1:0:2e",
+      "kavlan-4": "2001:660:4406:790:1:1:0:2e",
+      "kavlan-5": "2001:660:4406:791:1:1:0:2e",
+      "kavlan-6": "2001:660:4406:792:1:1:0:2e",
+      "kavlan-7": "2001:660:4406:793:1:1:0:2e",
+      "kavlan-8": "2001:660:4406:794:1:1:0:2e",
+      "kavlan-9": "2001:660:4406:795:1:1:0:2e"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.46",
-      "ip6": "2001:660:4406:700:1:0::2e",
+      "ip6": "2001:660:4406:700:1::2e",
       "kavlan": true,
       "mac": "ec:f4:bb:ce:a5:60",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.146",
-      "ip6": "2001:660:4406:700:1:1::2e",
+      "ip6": "2001:660:4406:700:1:1:0:2e",
       "kavlan": true,
       "mac": "ec:f4:bb:ce:a5:62",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-47.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-47.json
index 0a44374a0deb569adfa4cc9419142c947afc87cb..29074b6d4de135c894b16528bb5c907dfa9f59aa 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-47.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-47.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::2f",
-      "kavlan-11": "2001:660:4406:1a0:701:0::2f",
-      "kavlan-12": "2001:660:4406:2a0:701:0::2f",
-      "kavlan-13": "2001:660:4406:4a0:701:0::2f",
-      "kavlan-14": "2001:660:4406:5a0:701:0::2f",
-      "kavlan-16": "2001:660:4406:7a0:701:0::2f",
-      "kavlan-18": "2001:660:4406:8a0:701:0::2f",
-      "kavlan-2": "2001:660:4406:781:1:0::2f",
-      "kavlan-20": "2001:660:4406:3a0:701:0::2f",
-      "kavlan-21": "2001:660:4406:6a0:701:0::2f",
-      "kavlan-3": "2001:660:4406:782:1:0::2f",
-      "kavlan-4": "2001:660:4406:790:1:0::2f",
-      "kavlan-5": "2001:660:4406:791:1:0::2f",
-      "kavlan-6": "2001:660:4406:792:1:0::2f",
-      "kavlan-7": "2001:660:4406:793:1:0::2f",
-      "kavlan-8": "2001:660:4406:794:1:0::2f",
-      "kavlan-9": "2001:660:4406:795:1:0::2f"
+      "kavlan-1": "2001:660:4406:780:1::2f",
+      "kavlan-11": "2001:660:4406:1a0:701::2f",
+      "kavlan-12": "2001:660:4406:2a0:701::2f",
+      "kavlan-13": "2001:660:4406:4a0:701::2f",
+      "kavlan-14": "2001:660:4406:5a0:701::2f",
+      "kavlan-16": "2001:660:4406:7a0:701::2f",
+      "kavlan-18": "2001:660:4406:8a0:701::2f",
+      "kavlan-2": "2001:660:4406:781:1::2f",
+      "kavlan-20": "2001:660:4406:3a0:701::2f",
+      "kavlan-21": "2001:660:4406:6a0:701::2f",
+      "kavlan-3": "2001:660:4406:782:1::2f",
+      "kavlan-4": "2001:660:4406:790:1::2f",
+      "kavlan-5": "2001:660:4406:791:1::2f",
+      "kavlan-6": "2001:660:4406:792:1::2f",
+      "kavlan-7": "2001:660:4406:793:1::2f",
+      "kavlan-8": "2001:660:4406:794:1::2f",
+      "kavlan-9": "2001:660:4406:795:1::2f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::2f",
-      "kavlan-11": "2001:660:4406:1a0:701:1::2f",
-      "kavlan-12": "2001:660:4406:2a0:701:1::2f",
-      "kavlan-13": "2001:660:4406:4a0:701:1::2f",
-      "kavlan-14": "2001:660:4406:5a0:701:1::2f",
-      "kavlan-16": "2001:660:4406:7a0:701:1::2f",
-      "kavlan-18": "2001:660:4406:8a0:701:1::2f",
-      "kavlan-2": "2001:660:4406:781:1:1::2f",
-      "kavlan-20": "2001:660:4406:3a0:701:1::2f",
-      "kavlan-21": "2001:660:4406:6a0:701:1::2f",
-      "kavlan-3": "2001:660:4406:782:1:1::2f",
-      "kavlan-4": "2001:660:4406:790:1:1::2f",
-      "kavlan-5": "2001:660:4406:791:1:1::2f",
-      "kavlan-6": "2001:660:4406:792:1:1::2f",
-      "kavlan-7": "2001:660:4406:793:1:1::2f",
-      "kavlan-8": "2001:660:4406:794:1:1::2f",
-      "kavlan-9": "2001:660:4406:795:1:1::2f"
+      "kavlan-1": "2001:660:4406:780:1:1:0:2f",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:2f",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:2f",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:2f",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:2f",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:2f",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:2f",
+      "kavlan-2": "2001:660:4406:781:1:1:0:2f",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:2f",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:2f",
+      "kavlan-3": "2001:660:4406:782:1:1:0:2f",
+      "kavlan-4": "2001:660:4406:790:1:1:0:2f",
+      "kavlan-5": "2001:660:4406:791:1:1:0:2f",
+      "kavlan-6": "2001:660:4406:792:1:1:0:2f",
+      "kavlan-7": "2001:660:4406:793:1:1:0:2f",
+      "kavlan-8": "2001:660:4406:794:1:1:0:2f",
+      "kavlan-9": "2001:660:4406:795:1:1:0:2f"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.47",
-      "ip6": "2001:660:4406:700:1:0::2f",
+      "ip6": "2001:660:4406:700:1::2f",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:98",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.147",
-      "ip6": "2001:660:4406:700:1:1::2f",
+      "ip6": "2001:660:4406:700:1:1:0:2f",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:9a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-48.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-48.json
index 1827270256bac901752305886d1d304b92b6f458..2ab3e0d230b39b5a2bfc1da236dcb5b5eea0ef6a 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-48.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-48.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::30",
-      "kavlan-11": "2001:660:4406:1a0:701:0::30",
-      "kavlan-12": "2001:660:4406:2a0:701:0::30",
-      "kavlan-13": "2001:660:4406:4a0:701:0::30",
-      "kavlan-14": "2001:660:4406:5a0:701:0::30",
-      "kavlan-16": "2001:660:4406:7a0:701:0::30",
-      "kavlan-18": "2001:660:4406:8a0:701:0::30",
-      "kavlan-2": "2001:660:4406:781:1:0::30",
-      "kavlan-20": "2001:660:4406:3a0:701:0::30",
-      "kavlan-21": "2001:660:4406:6a0:701:0::30",
-      "kavlan-3": "2001:660:4406:782:1:0::30",
-      "kavlan-4": "2001:660:4406:790:1:0::30",
-      "kavlan-5": "2001:660:4406:791:1:0::30",
-      "kavlan-6": "2001:660:4406:792:1:0::30",
-      "kavlan-7": "2001:660:4406:793:1:0::30",
-      "kavlan-8": "2001:660:4406:794:1:0::30",
-      "kavlan-9": "2001:660:4406:795:1:0::30"
+      "kavlan-1": "2001:660:4406:780:1::30",
+      "kavlan-11": "2001:660:4406:1a0:701::30",
+      "kavlan-12": "2001:660:4406:2a0:701::30",
+      "kavlan-13": "2001:660:4406:4a0:701::30",
+      "kavlan-14": "2001:660:4406:5a0:701::30",
+      "kavlan-16": "2001:660:4406:7a0:701::30",
+      "kavlan-18": "2001:660:4406:8a0:701::30",
+      "kavlan-2": "2001:660:4406:781:1::30",
+      "kavlan-20": "2001:660:4406:3a0:701::30",
+      "kavlan-21": "2001:660:4406:6a0:701::30",
+      "kavlan-3": "2001:660:4406:782:1::30",
+      "kavlan-4": "2001:660:4406:790:1::30",
+      "kavlan-5": "2001:660:4406:791:1::30",
+      "kavlan-6": "2001:660:4406:792:1::30",
+      "kavlan-7": "2001:660:4406:793:1::30",
+      "kavlan-8": "2001:660:4406:794:1::30",
+      "kavlan-9": "2001:660:4406:795:1::30"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::30",
-      "kavlan-11": "2001:660:4406:1a0:701:1::30",
-      "kavlan-12": "2001:660:4406:2a0:701:1::30",
-      "kavlan-13": "2001:660:4406:4a0:701:1::30",
-      "kavlan-14": "2001:660:4406:5a0:701:1::30",
-      "kavlan-16": "2001:660:4406:7a0:701:1::30",
-      "kavlan-18": "2001:660:4406:8a0:701:1::30",
-      "kavlan-2": "2001:660:4406:781:1:1::30",
-      "kavlan-20": "2001:660:4406:3a0:701:1::30",
-      "kavlan-21": "2001:660:4406:6a0:701:1::30",
-      "kavlan-3": "2001:660:4406:782:1:1::30",
-      "kavlan-4": "2001:660:4406:790:1:1::30",
-      "kavlan-5": "2001:660:4406:791:1:1::30",
-      "kavlan-6": "2001:660:4406:792:1:1::30",
-      "kavlan-7": "2001:660:4406:793:1:1::30",
-      "kavlan-8": "2001:660:4406:794:1:1::30",
-      "kavlan-9": "2001:660:4406:795:1:1::30"
+      "kavlan-1": "2001:660:4406:780:1:1:0:30",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:30",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:30",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:30",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:30",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:30",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:30",
+      "kavlan-2": "2001:660:4406:781:1:1:0:30",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:30",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:30",
+      "kavlan-3": "2001:660:4406:782:1:1:0:30",
+      "kavlan-4": "2001:660:4406:790:1:1:0:30",
+      "kavlan-5": "2001:660:4406:791:1:1:0:30",
+      "kavlan-6": "2001:660:4406:792:1:1:0:30",
+      "kavlan-7": "2001:660:4406:793:1:1:0:30",
+      "kavlan-8": "2001:660:4406:794:1:1:0:30",
+      "kavlan-9": "2001:660:4406:795:1:1:0:30"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.48",
-      "ip6": "2001:660:4406:700:1:0::30",
+      "ip6": "2001:660:4406:700:1::30",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fb:48",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.148",
-      "ip6": "2001:660:4406:700:1:1::30",
+      "ip6": "2001:660:4406:700:1:1:0:30",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fb:4a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-49.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-49.json
index ae20ce4f1325bd08799af34e6d476adc602f0ece..8b66182dc0c858bfa42b91975cc93d74deef4d8f 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-49.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-49.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::31",
-      "kavlan-11": "2001:660:4406:1a0:701:0::31",
-      "kavlan-12": "2001:660:4406:2a0:701:0::31",
-      "kavlan-13": "2001:660:4406:4a0:701:0::31",
-      "kavlan-14": "2001:660:4406:5a0:701:0::31",
-      "kavlan-16": "2001:660:4406:7a0:701:0::31",
-      "kavlan-18": "2001:660:4406:8a0:701:0::31",
-      "kavlan-2": "2001:660:4406:781:1:0::31",
-      "kavlan-20": "2001:660:4406:3a0:701:0::31",
-      "kavlan-21": "2001:660:4406:6a0:701:0::31",
-      "kavlan-3": "2001:660:4406:782:1:0::31",
-      "kavlan-4": "2001:660:4406:790:1:0::31",
-      "kavlan-5": "2001:660:4406:791:1:0::31",
-      "kavlan-6": "2001:660:4406:792:1:0::31",
-      "kavlan-7": "2001:660:4406:793:1:0::31",
-      "kavlan-8": "2001:660:4406:794:1:0::31",
-      "kavlan-9": "2001:660:4406:795:1:0::31"
+      "kavlan-1": "2001:660:4406:780:1::31",
+      "kavlan-11": "2001:660:4406:1a0:701::31",
+      "kavlan-12": "2001:660:4406:2a0:701::31",
+      "kavlan-13": "2001:660:4406:4a0:701::31",
+      "kavlan-14": "2001:660:4406:5a0:701::31",
+      "kavlan-16": "2001:660:4406:7a0:701::31",
+      "kavlan-18": "2001:660:4406:8a0:701::31",
+      "kavlan-2": "2001:660:4406:781:1::31",
+      "kavlan-20": "2001:660:4406:3a0:701::31",
+      "kavlan-21": "2001:660:4406:6a0:701::31",
+      "kavlan-3": "2001:660:4406:782:1::31",
+      "kavlan-4": "2001:660:4406:790:1::31",
+      "kavlan-5": "2001:660:4406:791:1::31",
+      "kavlan-6": "2001:660:4406:792:1::31",
+      "kavlan-7": "2001:660:4406:793:1::31",
+      "kavlan-8": "2001:660:4406:794:1::31",
+      "kavlan-9": "2001:660:4406:795:1::31"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::31",
-      "kavlan-11": "2001:660:4406:1a0:701:1::31",
-      "kavlan-12": "2001:660:4406:2a0:701:1::31",
-      "kavlan-13": "2001:660:4406:4a0:701:1::31",
-      "kavlan-14": "2001:660:4406:5a0:701:1::31",
-      "kavlan-16": "2001:660:4406:7a0:701:1::31",
-      "kavlan-18": "2001:660:4406:8a0:701:1::31",
-      "kavlan-2": "2001:660:4406:781:1:1::31",
-      "kavlan-20": "2001:660:4406:3a0:701:1::31",
-      "kavlan-21": "2001:660:4406:6a0:701:1::31",
-      "kavlan-3": "2001:660:4406:782:1:1::31",
-      "kavlan-4": "2001:660:4406:790:1:1::31",
-      "kavlan-5": "2001:660:4406:791:1:1::31",
-      "kavlan-6": "2001:660:4406:792:1:1::31",
-      "kavlan-7": "2001:660:4406:793:1:1::31",
-      "kavlan-8": "2001:660:4406:794:1:1::31",
-      "kavlan-9": "2001:660:4406:795:1:1::31"
+      "kavlan-1": "2001:660:4406:780:1:1:0:31",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:31",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:31",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:31",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:31",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:31",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:31",
+      "kavlan-2": "2001:660:4406:781:1:1:0:31",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:31",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:31",
+      "kavlan-3": "2001:660:4406:782:1:1:0:31",
+      "kavlan-4": "2001:660:4406:790:1:1:0:31",
+      "kavlan-5": "2001:660:4406:791:1:1:0:31",
+      "kavlan-6": "2001:660:4406:792:1:1:0:31",
+      "kavlan-7": "2001:660:4406:793:1:1:0:31",
+      "kavlan-8": "2001:660:4406:794:1:1:0:31",
+      "kavlan-9": "2001:660:4406:795:1:1:0:31"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.49",
-      "ip6": "2001:660:4406:700:1:0::31",
+      "ip6": "2001:660:4406:700:1::31",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:d0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.149",
-      "ip6": "2001:660:4406:700:1:1::31",
+      "ip6": "2001:660:4406:700:1:1:0:31",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:d2",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-5.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-5.json
index f1a1843eee24b42690535174c9ee7a241d5ee826..b6959894cac0fb8f69f7c0ec16c50274eb435b91 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-5.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-5.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::5",
-      "kavlan-11": "2001:660:4406:1a0:701:0::5",
-      "kavlan-12": "2001:660:4406:2a0:701:0::5",
-      "kavlan-13": "2001:660:4406:4a0:701:0::5",
-      "kavlan-14": "2001:660:4406:5a0:701:0::5",
-      "kavlan-16": "2001:660:4406:7a0:701:0::5",
-      "kavlan-18": "2001:660:4406:8a0:701:0::5",
-      "kavlan-2": "2001:660:4406:781:1:0::5",
-      "kavlan-20": "2001:660:4406:3a0:701:0::5",
-      "kavlan-21": "2001:660:4406:6a0:701:0::5",
-      "kavlan-3": "2001:660:4406:782:1:0::5",
-      "kavlan-4": "2001:660:4406:790:1:0::5",
-      "kavlan-5": "2001:660:4406:791:1:0::5",
-      "kavlan-6": "2001:660:4406:792:1:0::5",
-      "kavlan-7": "2001:660:4406:793:1:0::5",
-      "kavlan-8": "2001:660:4406:794:1:0::5",
-      "kavlan-9": "2001:660:4406:795:1:0::5"
+      "kavlan-1": "2001:660:4406:780:1::5",
+      "kavlan-11": "2001:660:4406:1a0:701::5",
+      "kavlan-12": "2001:660:4406:2a0:701::5",
+      "kavlan-13": "2001:660:4406:4a0:701::5",
+      "kavlan-14": "2001:660:4406:5a0:701::5",
+      "kavlan-16": "2001:660:4406:7a0:701::5",
+      "kavlan-18": "2001:660:4406:8a0:701::5",
+      "kavlan-2": "2001:660:4406:781:1::5",
+      "kavlan-20": "2001:660:4406:3a0:701::5",
+      "kavlan-21": "2001:660:4406:6a0:701::5",
+      "kavlan-3": "2001:660:4406:782:1::5",
+      "kavlan-4": "2001:660:4406:790:1::5",
+      "kavlan-5": "2001:660:4406:791:1::5",
+      "kavlan-6": "2001:660:4406:792:1::5",
+      "kavlan-7": "2001:660:4406:793:1::5",
+      "kavlan-8": "2001:660:4406:794:1::5",
+      "kavlan-9": "2001:660:4406:795:1::5"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::5",
-      "kavlan-11": "2001:660:4406:1a0:701:1::5",
-      "kavlan-12": "2001:660:4406:2a0:701:1::5",
-      "kavlan-13": "2001:660:4406:4a0:701:1::5",
-      "kavlan-14": "2001:660:4406:5a0:701:1::5",
-      "kavlan-16": "2001:660:4406:7a0:701:1::5",
-      "kavlan-18": "2001:660:4406:8a0:701:1::5",
-      "kavlan-2": "2001:660:4406:781:1:1::5",
-      "kavlan-20": "2001:660:4406:3a0:701:1::5",
-      "kavlan-21": "2001:660:4406:6a0:701:1::5",
-      "kavlan-3": "2001:660:4406:782:1:1::5",
-      "kavlan-4": "2001:660:4406:790:1:1::5",
-      "kavlan-5": "2001:660:4406:791:1:1::5",
-      "kavlan-6": "2001:660:4406:792:1:1::5",
-      "kavlan-7": "2001:660:4406:793:1:1::5",
-      "kavlan-8": "2001:660:4406:794:1:1::5",
-      "kavlan-9": "2001:660:4406:795:1:1::5"
+      "kavlan-1": "2001:660:4406:780:1:1:0:5",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:5",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:5",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:5",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:5",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:5",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:5",
+      "kavlan-2": "2001:660:4406:781:1:1:0:5",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:5",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:5",
+      "kavlan-3": "2001:660:4406:782:1:1:0:5",
+      "kavlan-4": "2001:660:4406:790:1:1:0:5",
+      "kavlan-5": "2001:660:4406:791:1:1:0:5",
+      "kavlan-6": "2001:660:4406:792:1:1:0:5",
+      "kavlan-7": "2001:660:4406:793:1:1:0:5",
+      "kavlan-8": "2001:660:4406:794:1:1:0:5",
+      "kavlan-9": "2001:660:4406:795:1:1:0:5"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.5",
-      "ip6": "2001:660:4406:700:1:0::5",
+      "ip6": "2001:660:4406:700:1::5",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:68",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.105",
-      "ip6": "2001:660:4406:700:1:1::5",
+      "ip6": "2001:660:4406:700:1:1:0:5",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:6a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-50.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-50.json
index 61a9bdc653d96771f7de3d025cc8a54b4e56c142..c9cc5b1178051922fd43f05a7eb2c26b8e611b0a 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-50.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-50.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::32",
-      "kavlan-11": "2001:660:4406:1a0:701:0::32",
-      "kavlan-12": "2001:660:4406:2a0:701:0::32",
-      "kavlan-13": "2001:660:4406:4a0:701:0::32",
-      "kavlan-14": "2001:660:4406:5a0:701:0::32",
-      "kavlan-16": "2001:660:4406:7a0:701:0::32",
-      "kavlan-18": "2001:660:4406:8a0:701:0::32",
-      "kavlan-2": "2001:660:4406:781:1:0::32",
-      "kavlan-20": "2001:660:4406:3a0:701:0::32",
-      "kavlan-21": "2001:660:4406:6a0:701:0::32",
-      "kavlan-3": "2001:660:4406:782:1:0::32",
-      "kavlan-4": "2001:660:4406:790:1:0::32",
-      "kavlan-5": "2001:660:4406:791:1:0::32",
-      "kavlan-6": "2001:660:4406:792:1:0::32",
-      "kavlan-7": "2001:660:4406:793:1:0::32",
-      "kavlan-8": "2001:660:4406:794:1:0::32",
-      "kavlan-9": "2001:660:4406:795:1:0::32"
+      "kavlan-1": "2001:660:4406:780:1::32",
+      "kavlan-11": "2001:660:4406:1a0:701::32",
+      "kavlan-12": "2001:660:4406:2a0:701::32",
+      "kavlan-13": "2001:660:4406:4a0:701::32",
+      "kavlan-14": "2001:660:4406:5a0:701::32",
+      "kavlan-16": "2001:660:4406:7a0:701::32",
+      "kavlan-18": "2001:660:4406:8a0:701::32",
+      "kavlan-2": "2001:660:4406:781:1::32",
+      "kavlan-20": "2001:660:4406:3a0:701::32",
+      "kavlan-21": "2001:660:4406:6a0:701::32",
+      "kavlan-3": "2001:660:4406:782:1::32",
+      "kavlan-4": "2001:660:4406:790:1::32",
+      "kavlan-5": "2001:660:4406:791:1::32",
+      "kavlan-6": "2001:660:4406:792:1::32",
+      "kavlan-7": "2001:660:4406:793:1::32",
+      "kavlan-8": "2001:660:4406:794:1::32",
+      "kavlan-9": "2001:660:4406:795:1::32"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::32",
-      "kavlan-11": "2001:660:4406:1a0:701:1::32",
-      "kavlan-12": "2001:660:4406:2a0:701:1::32",
-      "kavlan-13": "2001:660:4406:4a0:701:1::32",
-      "kavlan-14": "2001:660:4406:5a0:701:1::32",
-      "kavlan-16": "2001:660:4406:7a0:701:1::32",
-      "kavlan-18": "2001:660:4406:8a0:701:1::32",
-      "kavlan-2": "2001:660:4406:781:1:1::32",
-      "kavlan-20": "2001:660:4406:3a0:701:1::32",
-      "kavlan-21": "2001:660:4406:6a0:701:1::32",
-      "kavlan-3": "2001:660:4406:782:1:1::32",
-      "kavlan-4": "2001:660:4406:790:1:1::32",
-      "kavlan-5": "2001:660:4406:791:1:1::32",
-      "kavlan-6": "2001:660:4406:792:1:1::32",
-      "kavlan-7": "2001:660:4406:793:1:1::32",
-      "kavlan-8": "2001:660:4406:794:1:1::32",
-      "kavlan-9": "2001:660:4406:795:1:1::32"
+      "kavlan-1": "2001:660:4406:780:1:1:0:32",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:32",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:32",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:32",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:32",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:32",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:32",
+      "kavlan-2": "2001:660:4406:781:1:1:0:32",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:32",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:32",
+      "kavlan-3": "2001:660:4406:782:1:1:0:32",
+      "kavlan-4": "2001:660:4406:790:1:1:0:32",
+      "kavlan-5": "2001:660:4406:791:1:1:0:32",
+      "kavlan-6": "2001:660:4406:792:1:1:0:32",
+      "kavlan-7": "2001:660:4406:793:1:1:0:32",
+      "kavlan-8": "2001:660:4406:794:1:1:0:32",
+      "kavlan-9": "2001:660:4406:795:1:1:0:32"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.50",
-      "ip6": "2001:660:4406:700:1:0::32",
+      "ip6": "2001:660:4406:700:1::32",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:58",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.150",
-      "ip6": "2001:660:4406:700:1:1::32",
+      "ip6": "2001:660:4406:700:1:1:0:32",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:5a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-51.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-51.json
index 1449ad588e44cf7b8ebb0d4ec176606fe6b7b11b..37508316765e7e7b1428fafa74e8205206dff906 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-51.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-51.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::33",
-      "kavlan-11": "2001:660:4406:1a0:701:0::33",
-      "kavlan-12": "2001:660:4406:2a0:701:0::33",
-      "kavlan-13": "2001:660:4406:4a0:701:0::33",
-      "kavlan-14": "2001:660:4406:5a0:701:0::33",
-      "kavlan-16": "2001:660:4406:7a0:701:0::33",
-      "kavlan-18": "2001:660:4406:8a0:701:0::33",
-      "kavlan-2": "2001:660:4406:781:1:0::33",
-      "kavlan-20": "2001:660:4406:3a0:701:0::33",
-      "kavlan-21": "2001:660:4406:6a0:701:0::33",
-      "kavlan-3": "2001:660:4406:782:1:0::33",
-      "kavlan-4": "2001:660:4406:790:1:0::33",
-      "kavlan-5": "2001:660:4406:791:1:0::33",
-      "kavlan-6": "2001:660:4406:792:1:0::33",
-      "kavlan-7": "2001:660:4406:793:1:0::33",
-      "kavlan-8": "2001:660:4406:794:1:0::33",
-      "kavlan-9": "2001:660:4406:795:1:0::33"
+      "kavlan-1": "2001:660:4406:780:1::33",
+      "kavlan-11": "2001:660:4406:1a0:701::33",
+      "kavlan-12": "2001:660:4406:2a0:701::33",
+      "kavlan-13": "2001:660:4406:4a0:701::33",
+      "kavlan-14": "2001:660:4406:5a0:701::33",
+      "kavlan-16": "2001:660:4406:7a0:701::33",
+      "kavlan-18": "2001:660:4406:8a0:701::33",
+      "kavlan-2": "2001:660:4406:781:1::33",
+      "kavlan-20": "2001:660:4406:3a0:701::33",
+      "kavlan-21": "2001:660:4406:6a0:701::33",
+      "kavlan-3": "2001:660:4406:782:1::33",
+      "kavlan-4": "2001:660:4406:790:1::33",
+      "kavlan-5": "2001:660:4406:791:1::33",
+      "kavlan-6": "2001:660:4406:792:1::33",
+      "kavlan-7": "2001:660:4406:793:1::33",
+      "kavlan-8": "2001:660:4406:794:1::33",
+      "kavlan-9": "2001:660:4406:795:1::33"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::33",
-      "kavlan-11": "2001:660:4406:1a0:701:1::33",
-      "kavlan-12": "2001:660:4406:2a0:701:1::33",
-      "kavlan-13": "2001:660:4406:4a0:701:1::33",
-      "kavlan-14": "2001:660:4406:5a0:701:1::33",
-      "kavlan-16": "2001:660:4406:7a0:701:1::33",
-      "kavlan-18": "2001:660:4406:8a0:701:1::33",
-      "kavlan-2": "2001:660:4406:781:1:1::33",
-      "kavlan-20": "2001:660:4406:3a0:701:1::33",
-      "kavlan-21": "2001:660:4406:6a0:701:1::33",
-      "kavlan-3": "2001:660:4406:782:1:1::33",
-      "kavlan-4": "2001:660:4406:790:1:1::33",
-      "kavlan-5": "2001:660:4406:791:1:1::33",
-      "kavlan-6": "2001:660:4406:792:1:1::33",
-      "kavlan-7": "2001:660:4406:793:1:1::33",
-      "kavlan-8": "2001:660:4406:794:1:1::33",
-      "kavlan-9": "2001:660:4406:795:1:1::33"
+      "kavlan-1": "2001:660:4406:780:1:1:0:33",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:33",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:33",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:33",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:33",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:33",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:33",
+      "kavlan-2": "2001:660:4406:781:1:1:0:33",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:33",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:33",
+      "kavlan-3": "2001:660:4406:782:1:1:0:33",
+      "kavlan-4": "2001:660:4406:790:1:1:0:33",
+      "kavlan-5": "2001:660:4406:791:1:1:0:33",
+      "kavlan-6": "2001:660:4406:792:1:1:0:33",
+      "kavlan-7": "2001:660:4406:793:1:1:0:33",
+      "kavlan-8": "2001:660:4406:794:1:1:0:33",
+      "kavlan-9": "2001:660:4406:795:1:1:0:33"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.51",
-      "ip6": "2001:660:4406:700:1:0::33",
+      "ip6": "2001:660:4406:700:1::33",
       "kavlan": true,
       "mac": "24:6e:96:31:da:e0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.151",
-      "ip6": "2001:660:4406:700:1:1::33",
+      "ip6": "2001:660:4406:700:1:1:0:33",
       "kavlan": true,
       "mac": "24:6e:96:31:da:e2",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-52.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-52.json
index a9e557043da511664e71473300bfd51ca4227bc7..2d153f7d767b1c83a4bc523f47b064ea2d7fb41c 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-52.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-52.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::34",
-      "kavlan-11": "2001:660:4406:1a0:701:0::34",
-      "kavlan-12": "2001:660:4406:2a0:701:0::34",
-      "kavlan-13": "2001:660:4406:4a0:701:0::34",
-      "kavlan-14": "2001:660:4406:5a0:701:0::34",
-      "kavlan-16": "2001:660:4406:7a0:701:0::34",
-      "kavlan-18": "2001:660:4406:8a0:701:0::34",
-      "kavlan-2": "2001:660:4406:781:1:0::34",
-      "kavlan-20": "2001:660:4406:3a0:701:0::34",
-      "kavlan-21": "2001:660:4406:6a0:701:0::34",
-      "kavlan-3": "2001:660:4406:782:1:0::34",
-      "kavlan-4": "2001:660:4406:790:1:0::34",
-      "kavlan-5": "2001:660:4406:791:1:0::34",
-      "kavlan-6": "2001:660:4406:792:1:0::34",
-      "kavlan-7": "2001:660:4406:793:1:0::34",
-      "kavlan-8": "2001:660:4406:794:1:0::34",
-      "kavlan-9": "2001:660:4406:795:1:0::34"
+      "kavlan-1": "2001:660:4406:780:1::34",
+      "kavlan-11": "2001:660:4406:1a0:701::34",
+      "kavlan-12": "2001:660:4406:2a0:701::34",
+      "kavlan-13": "2001:660:4406:4a0:701::34",
+      "kavlan-14": "2001:660:4406:5a0:701::34",
+      "kavlan-16": "2001:660:4406:7a0:701::34",
+      "kavlan-18": "2001:660:4406:8a0:701::34",
+      "kavlan-2": "2001:660:4406:781:1::34",
+      "kavlan-20": "2001:660:4406:3a0:701::34",
+      "kavlan-21": "2001:660:4406:6a0:701::34",
+      "kavlan-3": "2001:660:4406:782:1::34",
+      "kavlan-4": "2001:660:4406:790:1::34",
+      "kavlan-5": "2001:660:4406:791:1::34",
+      "kavlan-6": "2001:660:4406:792:1::34",
+      "kavlan-7": "2001:660:4406:793:1::34",
+      "kavlan-8": "2001:660:4406:794:1::34",
+      "kavlan-9": "2001:660:4406:795:1::34"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::34",
-      "kavlan-11": "2001:660:4406:1a0:701:1::34",
-      "kavlan-12": "2001:660:4406:2a0:701:1::34",
-      "kavlan-13": "2001:660:4406:4a0:701:1::34",
-      "kavlan-14": "2001:660:4406:5a0:701:1::34",
-      "kavlan-16": "2001:660:4406:7a0:701:1::34",
-      "kavlan-18": "2001:660:4406:8a0:701:1::34",
-      "kavlan-2": "2001:660:4406:781:1:1::34",
-      "kavlan-20": "2001:660:4406:3a0:701:1::34",
-      "kavlan-21": "2001:660:4406:6a0:701:1::34",
-      "kavlan-3": "2001:660:4406:782:1:1::34",
-      "kavlan-4": "2001:660:4406:790:1:1::34",
-      "kavlan-5": "2001:660:4406:791:1:1::34",
-      "kavlan-6": "2001:660:4406:792:1:1::34",
-      "kavlan-7": "2001:660:4406:793:1:1::34",
-      "kavlan-8": "2001:660:4406:794:1:1::34",
-      "kavlan-9": "2001:660:4406:795:1:1::34"
+      "kavlan-1": "2001:660:4406:780:1:1:0:34",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:34",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:34",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:34",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:34",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:34",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:34",
+      "kavlan-2": "2001:660:4406:781:1:1:0:34",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:34",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:34",
+      "kavlan-3": "2001:660:4406:782:1:1:0:34",
+      "kavlan-4": "2001:660:4406:790:1:1:0:34",
+      "kavlan-5": "2001:660:4406:791:1:1:0:34",
+      "kavlan-6": "2001:660:4406:792:1:1:0:34",
+      "kavlan-7": "2001:660:4406:793:1:1:0:34",
+      "kavlan-8": "2001:660:4406:794:1:1:0:34",
+      "kavlan-9": "2001:660:4406:795:1:1:0:34"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.52",
-      "ip6": "2001:660:4406:700:1:0::34",
+      "ip6": "2001:660:4406:700:1::34",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:d0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.152",
-      "ip6": "2001:660:4406:700:1:1::34",
+      "ip6": "2001:660:4406:700:1:1:0:34",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:d2",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-53.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-53.json
index 4bb9add7cf5069d4c8bd6c9e9a168e51e66df887..8301caae9d3604b68b3bd3c60e8c7afc2d0ead5b 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-53.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-53.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::35",
-      "kavlan-11": "2001:660:4406:1a0:701:0::35",
-      "kavlan-12": "2001:660:4406:2a0:701:0::35",
-      "kavlan-13": "2001:660:4406:4a0:701:0::35",
-      "kavlan-14": "2001:660:4406:5a0:701:0::35",
-      "kavlan-16": "2001:660:4406:7a0:701:0::35",
-      "kavlan-18": "2001:660:4406:8a0:701:0::35",
-      "kavlan-2": "2001:660:4406:781:1:0::35",
-      "kavlan-20": "2001:660:4406:3a0:701:0::35",
-      "kavlan-21": "2001:660:4406:6a0:701:0::35",
-      "kavlan-3": "2001:660:4406:782:1:0::35",
-      "kavlan-4": "2001:660:4406:790:1:0::35",
-      "kavlan-5": "2001:660:4406:791:1:0::35",
-      "kavlan-6": "2001:660:4406:792:1:0::35",
-      "kavlan-7": "2001:660:4406:793:1:0::35",
-      "kavlan-8": "2001:660:4406:794:1:0::35",
-      "kavlan-9": "2001:660:4406:795:1:0::35"
+      "kavlan-1": "2001:660:4406:780:1::35",
+      "kavlan-11": "2001:660:4406:1a0:701::35",
+      "kavlan-12": "2001:660:4406:2a0:701::35",
+      "kavlan-13": "2001:660:4406:4a0:701::35",
+      "kavlan-14": "2001:660:4406:5a0:701::35",
+      "kavlan-16": "2001:660:4406:7a0:701::35",
+      "kavlan-18": "2001:660:4406:8a0:701::35",
+      "kavlan-2": "2001:660:4406:781:1::35",
+      "kavlan-20": "2001:660:4406:3a0:701::35",
+      "kavlan-21": "2001:660:4406:6a0:701::35",
+      "kavlan-3": "2001:660:4406:782:1::35",
+      "kavlan-4": "2001:660:4406:790:1::35",
+      "kavlan-5": "2001:660:4406:791:1::35",
+      "kavlan-6": "2001:660:4406:792:1::35",
+      "kavlan-7": "2001:660:4406:793:1::35",
+      "kavlan-8": "2001:660:4406:794:1::35",
+      "kavlan-9": "2001:660:4406:795:1::35"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::35",
-      "kavlan-11": "2001:660:4406:1a0:701:1::35",
-      "kavlan-12": "2001:660:4406:2a0:701:1::35",
-      "kavlan-13": "2001:660:4406:4a0:701:1::35",
-      "kavlan-14": "2001:660:4406:5a0:701:1::35",
-      "kavlan-16": "2001:660:4406:7a0:701:1::35",
-      "kavlan-18": "2001:660:4406:8a0:701:1::35",
-      "kavlan-2": "2001:660:4406:781:1:1::35",
-      "kavlan-20": "2001:660:4406:3a0:701:1::35",
-      "kavlan-21": "2001:660:4406:6a0:701:1::35",
-      "kavlan-3": "2001:660:4406:782:1:1::35",
-      "kavlan-4": "2001:660:4406:790:1:1::35",
-      "kavlan-5": "2001:660:4406:791:1:1::35",
-      "kavlan-6": "2001:660:4406:792:1:1::35",
-      "kavlan-7": "2001:660:4406:793:1:1::35",
-      "kavlan-8": "2001:660:4406:794:1:1::35",
-      "kavlan-9": "2001:660:4406:795:1:1::35"
+      "kavlan-1": "2001:660:4406:780:1:1:0:35",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:35",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:35",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:35",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:35",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:35",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:35",
+      "kavlan-2": "2001:660:4406:781:1:1:0:35",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:35",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:35",
+      "kavlan-3": "2001:660:4406:782:1:1:0:35",
+      "kavlan-4": "2001:660:4406:790:1:1:0:35",
+      "kavlan-5": "2001:660:4406:791:1:1:0:35",
+      "kavlan-6": "2001:660:4406:792:1:1:0:35",
+      "kavlan-7": "2001:660:4406:793:1:1:0:35",
+      "kavlan-8": "2001:660:4406:794:1:1:0:35",
+      "kavlan-9": "2001:660:4406:795:1:1:0:35"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.53",
-      "ip6": "2001:660:4406:700:1:0::35",
+      "ip6": "2001:660:4406:700:1::35",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:90",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.153",
-      "ip6": "2001:660:4406:700:1:1::35",
+      "ip6": "2001:660:4406:700:1:1:0:35",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:92",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-54.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-54.json
index ad9f44a7b0166be3f8b93311abe7926cd65d3f08..27460e36178f2ea944a54873187e48bbc1ac40c5 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-54.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-54.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::36",
-      "kavlan-11": "2001:660:4406:1a0:701:0::36",
-      "kavlan-12": "2001:660:4406:2a0:701:0::36",
-      "kavlan-13": "2001:660:4406:4a0:701:0::36",
-      "kavlan-14": "2001:660:4406:5a0:701:0::36",
-      "kavlan-16": "2001:660:4406:7a0:701:0::36",
-      "kavlan-18": "2001:660:4406:8a0:701:0::36",
-      "kavlan-2": "2001:660:4406:781:1:0::36",
-      "kavlan-20": "2001:660:4406:3a0:701:0::36",
-      "kavlan-21": "2001:660:4406:6a0:701:0::36",
-      "kavlan-3": "2001:660:4406:782:1:0::36",
-      "kavlan-4": "2001:660:4406:790:1:0::36",
-      "kavlan-5": "2001:660:4406:791:1:0::36",
-      "kavlan-6": "2001:660:4406:792:1:0::36",
-      "kavlan-7": "2001:660:4406:793:1:0::36",
-      "kavlan-8": "2001:660:4406:794:1:0::36",
-      "kavlan-9": "2001:660:4406:795:1:0::36"
+      "kavlan-1": "2001:660:4406:780:1::36",
+      "kavlan-11": "2001:660:4406:1a0:701::36",
+      "kavlan-12": "2001:660:4406:2a0:701::36",
+      "kavlan-13": "2001:660:4406:4a0:701::36",
+      "kavlan-14": "2001:660:4406:5a0:701::36",
+      "kavlan-16": "2001:660:4406:7a0:701::36",
+      "kavlan-18": "2001:660:4406:8a0:701::36",
+      "kavlan-2": "2001:660:4406:781:1::36",
+      "kavlan-20": "2001:660:4406:3a0:701::36",
+      "kavlan-21": "2001:660:4406:6a0:701::36",
+      "kavlan-3": "2001:660:4406:782:1::36",
+      "kavlan-4": "2001:660:4406:790:1::36",
+      "kavlan-5": "2001:660:4406:791:1::36",
+      "kavlan-6": "2001:660:4406:792:1::36",
+      "kavlan-7": "2001:660:4406:793:1::36",
+      "kavlan-8": "2001:660:4406:794:1::36",
+      "kavlan-9": "2001:660:4406:795:1::36"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::36",
-      "kavlan-11": "2001:660:4406:1a0:701:1::36",
-      "kavlan-12": "2001:660:4406:2a0:701:1::36",
-      "kavlan-13": "2001:660:4406:4a0:701:1::36",
-      "kavlan-14": "2001:660:4406:5a0:701:1::36",
-      "kavlan-16": "2001:660:4406:7a0:701:1::36",
-      "kavlan-18": "2001:660:4406:8a0:701:1::36",
-      "kavlan-2": "2001:660:4406:781:1:1::36",
-      "kavlan-20": "2001:660:4406:3a0:701:1::36",
-      "kavlan-21": "2001:660:4406:6a0:701:1::36",
-      "kavlan-3": "2001:660:4406:782:1:1::36",
-      "kavlan-4": "2001:660:4406:790:1:1::36",
-      "kavlan-5": "2001:660:4406:791:1:1::36",
-      "kavlan-6": "2001:660:4406:792:1:1::36",
-      "kavlan-7": "2001:660:4406:793:1:1::36",
-      "kavlan-8": "2001:660:4406:794:1:1::36",
-      "kavlan-9": "2001:660:4406:795:1:1::36"
+      "kavlan-1": "2001:660:4406:780:1:1:0:36",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:36",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:36",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:36",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:36",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:36",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:36",
+      "kavlan-2": "2001:660:4406:781:1:1:0:36",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:36",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:36",
+      "kavlan-3": "2001:660:4406:782:1:1:0:36",
+      "kavlan-4": "2001:660:4406:790:1:1:0:36",
+      "kavlan-5": "2001:660:4406:791:1:1:0:36",
+      "kavlan-6": "2001:660:4406:792:1:1:0:36",
+      "kavlan-7": "2001:660:4406:793:1:1:0:36",
+      "kavlan-8": "2001:660:4406:794:1:1:0:36",
+      "kavlan-9": "2001:660:4406:795:1:1:0:36"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.54",
-      "ip6": "2001:660:4406:700:1:0::36",
+      "ip6": "2001:660:4406:700:1::36",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:58",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.154",
-      "ip6": "2001:660:4406:700:1:1::36",
+      "ip6": "2001:660:4406:700:1:1:0:36",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:5a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-55.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-55.json
index eea2f17f4e0b2979f24a4226917169fdf336f82b..38ee474c4e90a6ffb394788d2551a95d4bafeb6b 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-55.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-55.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::37",
-      "kavlan-11": "2001:660:4406:1a0:701:0::37",
-      "kavlan-12": "2001:660:4406:2a0:701:0::37",
-      "kavlan-13": "2001:660:4406:4a0:701:0::37",
-      "kavlan-14": "2001:660:4406:5a0:701:0::37",
-      "kavlan-16": "2001:660:4406:7a0:701:0::37",
-      "kavlan-18": "2001:660:4406:8a0:701:0::37",
-      "kavlan-2": "2001:660:4406:781:1:0::37",
-      "kavlan-20": "2001:660:4406:3a0:701:0::37",
-      "kavlan-21": "2001:660:4406:6a0:701:0::37",
-      "kavlan-3": "2001:660:4406:782:1:0::37",
-      "kavlan-4": "2001:660:4406:790:1:0::37",
-      "kavlan-5": "2001:660:4406:791:1:0::37",
-      "kavlan-6": "2001:660:4406:792:1:0::37",
-      "kavlan-7": "2001:660:4406:793:1:0::37",
-      "kavlan-8": "2001:660:4406:794:1:0::37",
-      "kavlan-9": "2001:660:4406:795:1:0::37"
+      "kavlan-1": "2001:660:4406:780:1::37",
+      "kavlan-11": "2001:660:4406:1a0:701::37",
+      "kavlan-12": "2001:660:4406:2a0:701::37",
+      "kavlan-13": "2001:660:4406:4a0:701::37",
+      "kavlan-14": "2001:660:4406:5a0:701::37",
+      "kavlan-16": "2001:660:4406:7a0:701::37",
+      "kavlan-18": "2001:660:4406:8a0:701::37",
+      "kavlan-2": "2001:660:4406:781:1::37",
+      "kavlan-20": "2001:660:4406:3a0:701::37",
+      "kavlan-21": "2001:660:4406:6a0:701::37",
+      "kavlan-3": "2001:660:4406:782:1::37",
+      "kavlan-4": "2001:660:4406:790:1::37",
+      "kavlan-5": "2001:660:4406:791:1::37",
+      "kavlan-6": "2001:660:4406:792:1::37",
+      "kavlan-7": "2001:660:4406:793:1::37",
+      "kavlan-8": "2001:660:4406:794:1::37",
+      "kavlan-9": "2001:660:4406:795:1::37"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::37",
-      "kavlan-11": "2001:660:4406:1a0:701:1::37",
-      "kavlan-12": "2001:660:4406:2a0:701:1::37",
-      "kavlan-13": "2001:660:4406:4a0:701:1::37",
-      "kavlan-14": "2001:660:4406:5a0:701:1::37",
-      "kavlan-16": "2001:660:4406:7a0:701:1::37",
-      "kavlan-18": "2001:660:4406:8a0:701:1::37",
-      "kavlan-2": "2001:660:4406:781:1:1::37",
-      "kavlan-20": "2001:660:4406:3a0:701:1::37",
-      "kavlan-21": "2001:660:4406:6a0:701:1::37",
-      "kavlan-3": "2001:660:4406:782:1:1::37",
-      "kavlan-4": "2001:660:4406:790:1:1::37",
-      "kavlan-5": "2001:660:4406:791:1:1::37",
-      "kavlan-6": "2001:660:4406:792:1:1::37",
-      "kavlan-7": "2001:660:4406:793:1:1::37",
-      "kavlan-8": "2001:660:4406:794:1:1::37",
-      "kavlan-9": "2001:660:4406:795:1:1::37"
+      "kavlan-1": "2001:660:4406:780:1:1:0:37",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:37",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:37",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:37",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:37",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:37",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:37",
+      "kavlan-2": "2001:660:4406:781:1:1:0:37",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:37",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:37",
+      "kavlan-3": "2001:660:4406:782:1:1:0:37",
+      "kavlan-4": "2001:660:4406:790:1:1:0:37",
+      "kavlan-5": "2001:660:4406:791:1:1:0:37",
+      "kavlan-6": "2001:660:4406:792:1:1:0:37",
+      "kavlan-7": "2001:660:4406:793:1:1:0:37",
+      "kavlan-8": "2001:660:4406:794:1:1:0:37",
+      "kavlan-9": "2001:660:4406:795:1:1:0:37"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.55",
-      "ip6": "2001:660:4406:700:1:0::37",
+      "ip6": "2001:660:4406:700:1::37",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f6:30",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.155",
-      "ip6": "2001:660:4406:700:1:1::37",
+      "ip6": "2001:660:4406:700:1:1:0:37",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f6:32",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-56.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-56.json
index cc18c3d95554a2924dcb546cc40d0d367adfc324..d0bcf129819b997d1c0bab9687fab19a3688b5c9 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-56.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-56.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::38",
-      "kavlan-11": "2001:660:4406:1a0:701:0::38",
-      "kavlan-12": "2001:660:4406:2a0:701:0::38",
-      "kavlan-13": "2001:660:4406:4a0:701:0::38",
-      "kavlan-14": "2001:660:4406:5a0:701:0::38",
-      "kavlan-16": "2001:660:4406:7a0:701:0::38",
-      "kavlan-18": "2001:660:4406:8a0:701:0::38",
-      "kavlan-2": "2001:660:4406:781:1:0::38",
-      "kavlan-20": "2001:660:4406:3a0:701:0::38",
-      "kavlan-21": "2001:660:4406:6a0:701:0::38",
-      "kavlan-3": "2001:660:4406:782:1:0::38",
-      "kavlan-4": "2001:660:4406:790:1:0::38",
-      "kavlan-5": "2001:660:4406:791:1:0::38",
-      "kavlan-6": "2001:660:4406:792:1:0::38",
-      "kavlan-7": "2001:660:4406:793:1:0::38",
-      "kavlan-8": "2001:660:4406:794:1:0::38",
-      "kavlan-9": "2001:660:4406:795:1:0::38"
+      "kavlan-1": "2001:660:4406:780:1::38",
+      "kavlan-11": "2001:660:4406:1a0:701::38",
+      "kavlan-12": "2001:660:4406:2a0:701::38",
+      "kavlan-13": "2001:660:4406:4a0:701::38",
+      "kavlan-14": "2001:660:4406:5a0:701::38",
+      "kavlan-16": "2001:660:4406:7a0:701::38",
+      "kavlan-18": "2001:660:4406:8a0:701::38",
+      "kavlan-2": "2001:660:4406:781:1::38",
+      "kavlan-20": "2001:660:4406:3a0:701::38",
+      "kavlan-21": "2001:660:4406:6a0:701::38",
+      "kavlan-3": "2001:660:4406:782:1::38",
+      "kavlan-4": "2001:660:4406:790:1::38",
+      "kavlan-5": "2001:660:4406:791:1::38",
+      "kavlan-6": "2001:660:4406:792:1::38",
+      "kavlan-7": "2001:660:4406:793:1::38",
+      "kavlan-8": "2001:660:4406:794:1::38",
+      "kavlan-9": "2001:660:4406:795:1::38"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::38",
-      "kavlan-11": "2001:660:4406:1a0:701:1::38",
-      "kavlan-12": "2001:660:4406:2a0:701:1::38",
-      "kavlan-13": "2001:660:4406:4a0:701:1::38",
-      "kavlan-14": "2001:660:4406:5a0:701:1::38",
-      "kavlan-16": "2001:660:4406:7a0:701:1::38",
-      "kavlan-18": "2001:660:4406:8a0:701:1::38",
-      "kavlan-2": "2001:660:4406:781:1:1::38",
-      "kavlan-20": "2001:660:4406:3a0:701:1::38",
-      "kavlan-21": "2001:660:4406:6a0:701:1::38",
-      "kavlan-3": "2001:660:4406:782:1:1::38",
-      "kavlan-4": "2001:660:4406:790:1:1::38",
-      "kavlan-5": "2001:660:4406:791:1:1::38",
-      "kavlan-6": "2001:660:4406:792:1:1::38",
-      "kavlan-7": "2001:660:4406:793:1:1::38",
-      "kavlan-8": "2001:660:4406:794:1:1::38",
-      "kavlan-9": "2001:660:4406:795:1:1::38"
+      "kavlan-1": "2001:660:4406:780:1:1:0:38",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:38",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:38",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:38",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:38",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:38",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:38",
+      "kavlan-2": "2001:660:4406:781:1:1:0:38",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:38",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:38",
+      "kavlan-3": "2001:660:4406:782:1:1:0:38",
+      "kavlan-4": "2001:660:4406:790:1:1:0:38",
+      "kavlan-5": "2001:660:4406:791:1:1:0:38",
+      "kavlan-6": "2001:660:4406:792:1:1:0:38",
+      "kavlan-7": "2001:660:4406:793:1:1:0:38",
+      "kavlan-8": "2001:660:4406:794:1:1:0:38",
+      "kavlan-9": "2001:660:4406:795:1:1:0:38"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.56",
-      "ip6": "2001:660:4406:700:1:0::38",
+      "ip6": "2001:660:4406:700:1::38",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:e8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.156",
-      "ip6": "2001:660:4406:700:1:1::38",
+      "ip6": "2001:660:4406:700:1:1:0:38",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:ea",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-57.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-57.json
index f2db229b2781d17a8a22928f11ddf285900ae4d1..8c70fbd463ce60abbb48482c37a5e9b0f944307d 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-57.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-57.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::39",
-      "kavlan-11": "2001:660:4406:1a0:701:0::39",
-      "kavlan-12": "2001:660:4406:2a0:701:0::39",
-      "kavlan-13": "2001:660:4406:4a0:701:0::39",
-      "kavlan-14": "2001:660:4406:5a0:701:0::39",
-      "kavlan-16": "2001:660:4406:7a0:701:0::39",
-      "kavlan-18": "2001:660:4406:8a0:701:0::39",
-      "kavlan-2": "2001:660:4406:781:1:0::39",
-      "kavlan-20": "2001:660:4406:3a0:701:0::39",
-      "kavlan-21": "2001:660:4406:6a0:701:0::39",
-      "kavlan-3": "2001:660:4406:782:1:0::39",
-      "kavlan-4": "2001:660:4406:790:1:0::39",
-      "kavlan-5": "2001:660:4406:791:1:0::39",
-      "kavlan-6": "2001:660:4406:792:1:0::39",
-      "kavlan-7": "2001:660:4406:793:1:0::39",
-      "kavlan-8": "2001:660:4406:794:1:0::39",
-      "kavlan-9": "2001:660:4406:795:1:0::39"
+      "kavlan-1": "2001:660:4406:780:1::39",
+      "kavlan-11": "2001:660:4406:1a0:701::39",
+      "kavlan-12": "2001:660:4406:2a0:701::39",
+      "kavlan-13": "2001:660:4406:4a0:701::39",
+      "kavlan-14": "2001:660:4406:5a0:701::39",
+      "kavlan-16": "2001:660:4406:7a0:701::39",
+      "kavlan-18": "2001:660:4406:8a0:701::39",
+      "kavlan-2": "2001:660:4406:781:1::39",
+      "kavlan-20": "2001:660:4406:3a0:701::39",
+      "kavlan-21": "2001:660:4406:6a0:701::39",
+      "kavlan-3": "2001:660:4406:782:1::39",
+      "kavlan-4": "2001:660:4406:790:1::39",
+      "kavlan-5": "2001:660:4406:791:1::39",
+      "kavlan-6": "2001:660:4406:792:1::39",
+      "kavlan-7": "2001:660:4406:793:1::39",
+      "kavlan-8": "2001:660:4406:794:1::39",
+      "kavlan-9": "2001:660:4406:795:1::39"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::39",
-      "kavlan-11": "2001:660:4406:1a0:701:1::39",
-      "kavlan-12": "2001:660:4406:2a0:701:1::39",
-      "kavlan-13": "2001:660:4406:4a0:701:1::39",
-      "kavlan-14": "2001:660:4406:5a0:701:1::39",
-      "kavlan-16": "2001:660:4406:7a0:701:1::39",
-      "kavlan-18": "2001:660:4406:8a0:701:1::39",
-      "kavlan-2": "2001:660:4406:781:1:1::39",
-      "kavlan-20": "2001:660:4406:3a0:701:1::39",
-      "kavlan-21": "2001:660:4406:6a0:701:1::39",
-      "kavlan-3": "2001:660:4406:782:1:1::39",
-      "kavlan-4": "2001:660:4406:790:1:1::39",
-      "kavlan-5": "2001:660:4406:791:1:1::39",
-      "kavlan-6": "2001:660:4406:792:1:1::39",
-      "kavlan-7": "2001:660:4406:793:1:1::39",
-      "kavlan-8": "2001:660:4406:794:1:1::39",
-      "kavlan-9": "2001:660:4406:795:1:1::39"
+      "kavlan-1": "2001:660:4406:780:1:1:0:39",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:39",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:39",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:39",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:39",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:39",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:39",
+      "kavlan-2": "2001:660:4406:781:1:1:0:39",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:39",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:39",
+      "kavlan-3": "2001:660:4406:782:1:1:0:39",
+      "kavlan-4": "2001:660:4406:790:1:1:0:39",
+      "kavlan-5": "2001:660:4406:791:1:1:0:39",
+      "kavlan-6": "2001:660:4406:792:1:1:0:39",
+      "kavlan-7": "2001:660:4406:793:1:1:0:39",
+      "kavlan-8": "2001:660:4406:794:1:1:0:39",
+      "kavlan-9": "2001:660:4406:795:1:1:0:39"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.57",
-      "ip6": "2001:660:4406:700:1:0::39",
+      "ip6": "2001:660:4406:700:1::39",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:a8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.157",
-      "ip6": "2001:660:4406:700:1:1::39",
+      "ip6": "2001:660:4406:700:1:1:0:39",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:aa",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-58.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-58.json
index 88bc51b6517e0b1468952a806a87ec3074d34818..eb9aa3d4c036fa941079df7ff8e1fd437c9a4cbc 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-58.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-58.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::3a",
-      "kavlan-11": "2001:660:4406:1a0:701:0::3a",
-      "kavlan-12": "2001:660:4406:2a0:701:0::3a",
-      "kavlan-13": "2001:660:4406:4a0:701:0::3a",
-      "kavlan-14": "2001:660:4406:5a0:701:0::3a",
-      "kavlan-16": "2001:660:4406:7a0:701:0::3a",
-      "kavlan-18": "2001:660:4406:8a0:701:0::3a",
-      "kavlan-2": "2001:660:4406:781:1:0::3a",
-      "kavlan-20": "2001:660:4406:3a0:701:0::3a",
-      "kavlan-21": "2001:660:4406:6a0:701:0::3a",
-      "kavlan-3": "2001:660:4406:782:1:0::3a",
-      "kavlan-4": "2001:660:4406:790:1:0::3a",
-      "kavlan-5": "2001:660:4406:791:1:0::3a",
-      "kavlan-6": "2001:660:4406:792:1:0::3a",
-      "kavlan-7": "2001:660:4406:793:1:0::3a",
-      "kavlan-8": "2001:660:4406:794:1:0::3a",
-      "kavlan-9": "2001:660:4406:795:1:0::3a"
+      "kavlan-1": "2001:660:4406:780:1::3a",
+      "kavlan-11": "2001:660:4406:1a0:701::3a",
+      "kavlan-12": "2001:660:4406:2a0:701::3a",
+      "kavlan-13": "2001:660:4406:4a0:701::3a",
+      "kavlan-14": "2001:660:4406:5a0:701::3a",
+      "kavlan-16": "2001:660:4406:7a0:701::3a",
+      "kavlan-18": "2001:660:4406:8a0:701::3a",
+      "kavlan-2": "2001:660:4406:781:1::3a",
+      "kavlan-20": "2001:660:4406:3a0:701::3a",
+      "kavlan-21": "2001:660:4406:6a0:701::3a",
+      "kavlan-3": "2001:660:4406:782:1::3a",
+      "kavlan-4": "2001:660:4406:790:1::3a",
+      "kavlan-5": "2001:660:4406:791:1::3a",
+      "kavlan-6": "2001:660:4406:792:1::3a",
+      "kavlan-7": "2001:660:4406:793:1::3a",
+      "kavlan-8": "2001:660:4406:794:1::3a",
+      "kavlan-9": "2001:660:4406:795:1::3a"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::3a",
-      "kavlan-11": "2001:660:4406:1a0:701:1::3a",
-      "kavlan-12": "2001:660:4406:2a0:701:1::3a",
-      "kavlan-13": "2001:660:4406:4a0:701:1::3a",
-      "kavlan-14": "2001:660:4406:5a0:701:1::3a",
-      "kavlan-16": "2001:660:4406:7a0:701:1::3a",
-      "kavlan-18": "2001:660:4406:8a0:701:1::3a",
-      "kavlan-2": "2001:660:4406:781:1:1::3a",
-      "kavlan-20": "2001:660:4406:3a0:701:1::3a",
-      "kavlan-21": "2001:660:4406:6a0:701:1::3a",
-      "kavlan-3": "2001:660:4406:782:1:1::3a",
-      "kavlan-4": "2001:660:4406:790:1:1::3a",
-      "kavlan-5": "2001:660:4406:791:1:1::3a",
-      "kavlan-6": "2001:660:4406:792:1:1::3a",
-      "kavlan-7": "2001:660:4406:793:1:1::3a",
-      "kavlan-8": "2001:660:4406:794:1:1::3a",
-      "kavlan-9": "2001:660:4406:795:1:1::3a"
+      "kavlan-1": "2001:660:4406:780:1:1:0:3a",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:3a",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:3a",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:3a",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:3a",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:3a",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:3a",
+      "kavlan-2": "2001:660:4406:781:1:1:0:3a",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:3a",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:3a",
+      "kavlan-3": "2001:660:4406:782:1:1:0:3a",
+      "kavlan-4": "2001:660:4406:790:1:1:0:3a",
+      "kavlan-5": "2001:660:4406:791:1:1:0:3a",
+      "kavlan-6": "2001:660:4406:792:1:1:0:3a",
+      "kavlan-7": "2001:660:4406:793:1:1:0:3a",
+      "kavlan-8": "2001:660:4406:794:1:1:0:3a",
+      "kavlan-9": "2001:660:4406:795:1:1:0:3a"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.58",
-      "ip6": "2001:660:4406:700:1:0::3a",
+      "ip6": "2001:660:4406:700:1::3a",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:78",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.158",
-      "ip6": "2001:660:4406:700:1:1::3a",
+      "ip6": "2001:660:4406:700:1:1:0:3a",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:7a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-59.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-59.json
index 9611ac7f3d7ea42be704a7da5deb468631589748..cc51ea64cdd441391c0020959a4040e44a398d4f 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-59.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-59.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::3b",
-      "kavlan-11": "2001:660:4406:1a0:701:0::3b",
-      "kavlan-12": "2001:660:4406:2a0:701:0::3b",
-      "kavlan-13": "2001:660:4406:4a0:701:0::3b",
-      "kavlan-14": "2001:660:4406:5a0:701:0::3b",
-      "kavlan-16": "2001:660:4406:7a0:701:0::3b",
-      "kavlan-18": "2001:660:4406:8a0:701:0::3b",
-      "kavlan-2": "2001:660:4406:781:1:0::3b",
-      "kavlan-20": "2001:660:4406:3a0:701:0::3b",
-      "kavlan-21": "2001:660:4406:6a0:701:0::3b",
-      "kavlan-3": "2001:660:4406:782:1:0::3b",
-      "kavlan-4": "2001:660:4406:790:1:0::3b",
-      "kavlan-5": "2001:660:4406:791:1:0::3b",
-      "kavlan-6": "2001:660:4406:792:1:0::3b",
-      "kavlan-7": "2001:660:4406:793:1:0::3b",
-      "kavlan-8": "2001:660:4406:794:1:0::3b",
-      "kavlan-9": "2001:660:4406:795:1:0::3b"
+      "kavlan-1": "2001:660:4406:780:1::3b",
+      "kavlan-11": "2001:660:4406:1a0:701::3b",
+      "kavlan-12": "2001:660:4406:2a0:701::3b",
+      "kavlan-13": "2001:660:4406:4a0:701::3b",
+      "kavlan-14": "2001:660:4406:5a0:701::3b",
+      "kavlan-16": "2001:660:4406:7a0:701::3b",
+      "kavlan-18": "2001:660:4406:8a0:701::3b",
+      "kavlan-2": "2001:660:4406:781:1::3b",
+      "kavlan-20": "2001:660:4406:3a0:701::3b",
+      "kavlan-21": "2001:660:4406:6a0:701::3b",
+      "kavlan-3": "2001:660:4406:782:1::3b",
+      "kavlan-4": "2001:660:4406:790:1::3b",
+      "kavlan-5": "2001:660:4406:791:1::3b",
+      "kavlan-6": "2001:660:4406:792:1::3b",
+      "kavlan-7": "2001:660:4406:793:1::3b",
+      "kavlan-8": "2001:660:4406:794:1::3b",
+      "kavlan-9": "2001:660:4406:795:1::3b"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::3b",
-      "kavlan-11": "2001:660:4406:1a0:701:1::3b",
-      "kavlan-12": "2001:660:4406:2a0:701:1::3b",
-      "kavlan-13": "2001:660:4406:4a0:701:1::3b",
-      "kavlan-14": "2001:660:4406:5a0:701:1::3b",
-      "kavlan-16": "2001:660:4406:7a0:701:1::3b",
-      "kavlan-18": "2001:660:4406:8a0:701:1::3b",
-      "kavlan-2": "2001:660:4406:781:1:1::3b",
-      "kavlan-20": "2001:660:4406:3a0:701:1::3b",
-      "kavlan-21": "2001:660:4406:6a0:701:1::3b",
-      "kavlan-3": "2001:660:4406:782:1:1::3b",
-      "kavlan-4": "2001:660:4406:790:1:1::3b",
-      "kavlan-5": "2001:660:4406:791:1:1::3b",
-      "kavlan-6": "2001:660:4406:792:1:1::3b",
-      "kavlan-7": "2001:660:4406:793:1:1::3b",
-      "kavlan-8": "2001:660:4406:794:1:1::3b",
-      "kavlan-9": "2001:660:4406:795:1:1::3b"
+      "kavlan-1": "2001:660:4406:780:1:1:0:3b",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:3b",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:3b",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:3b",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:3b",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:3b",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:3b",
+      "kavlan-2": "2001:660:4406:781:1:1:0:3b",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:3b",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:3b",
+      "kavlan-3": "2001:660:4406:782:1:1:0:3b",
+      "kavlan-4": "2001:660:4406:790:1:1:0:3b",
+      "kavlan-5": "2001:660:4406:791:1:1:0:3b",
+      "kavlan-6": "2001:660:4406:792:1:1:0:3b",
+      "kavlan-7": "2001:660:4406:793:1:1:0:3b",
+      "kavlan-8": "2001:660:4406:794:1:1:0:3b",
+      "kavlan-9": "2001:660:4406:795:1:1:0:3b"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.59",
-      "ip6": "2001:660:4406:700:1:0::3b",
+      "ip6": "2001:660:4406:700:1::3b",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:03:78",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.159",
-      "ip6": "2001:660:4406:700:1:1::3b",
+      "ip6": "2001:660:4406:700:1:1:0:3b",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:03:7a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-6.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-6.json
index b0732d0dfc287a4d2c61383c28ce96f8c3eb87ba..c442314780e1310922579b8fec5844ba195d1c8f 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-6.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-6.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::6",
-      "kavlan-11": "2001:660:4406:1a0:701:0::6",
-      "kavlan-12": "2001:660:4406:2a0:701:0::6",
-      "kavlan-13": "2001:660:4406:4a0:701:0::6",
-      "kavlan-14": "2001:660:4406:5a0:701:0::6",
-      "kavlan-16": "2001:660:4406:7a0:701:0::6",
-      "kavlan-18": "2001:660:4406:8a0:701:0::6",
-      "kavlan-2": "2001:660:4406:781:1:0::6",
-      "kavlan-20": "2001:660:4406:3a0:701:0::6",
-      "kavlan-21": "2001:660:4406:6a0:701:0::6",
-      "kavlan-3": "2001:660:4406:782:1:0::6",
-      "kavlan-4": "2001:660:4406:790:1:0::6",
-      "kavlan-5": "2001:660:4406:791:1:0::6",
-      "kavlan-6": "2001:660:4406:792:1:0::6",
-      "kavlan-7": "2001:660:4406:793:1:0::6",
-      "kavlan-8": "2001:660:4406:794:1:0::6",
-      "kavlan-9": "2001:660:4406:795:1:0::6"
+      "kavlan-1": "2001:660:4406:780:1::6",
+      "kavlan-11": "2001:660:4406:1a0:701::6",
+      "kavlan-12": "2001:660:4406:2a0:701::6",
+      "kavlan-13": "2001:660:4406:4a0:701::6",
+      "kavlan-14": "2001:660:4406:5a0:701::6",
+      "kavlan-16": "2001:660:4406:7a0:701::6",
+      "kavlan-18": "2001:660:4406:8a0:701::6",
+      "kavlan-2": "2001:660:4406:781:1::6",
+      "kavlan-20": "2001:660:4406:3a0:701::6",
+      "kavlan-21": "2001:660:4406:6a0:701::6",
+      "kavlan-3": "2001:660:4406:782:1::6",
+      "kavlan-4": "2001:660:4406:790:1::6",
+      "kavlan-5": "2001:660:4406:791:1::6",
+      "kavlan-6": "2001:660:4406:792:1::6",
+      "kavlan-7": "2001:660:4406:793:1::6",
+      "kavlan-8": "2001:660:4406:794:1::6",
+      "kavlan-9": "2001:660:4406:795:1::6"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::6",
-      "kavlan-11": "2001:660:4406:1a0:701:1::6",
-      "kavlan-12": "2001:660:4406:2a0:701:1::6",
-      "kavlan-13": "2001:660:4406:4a0:701:1::6",
-      "kavlan-14": "2001:660:4406:5a0:701:1::6",
-      "kavlan-16": "2001:660:4406:7a0:701:1::6",
-      "kavlan-18": "2001:660:4406:8a0:701:1::6",
-      "kavlan-2": "2001:660:4406:781:1:1::6",
-      "kavlan-20": "2001:660:4406:3a0:701:1::6",
-      "kavlan-21": "2001:660:4406:6a0:701:1::6",
-      "kavlan-3": "2001:660:4406:782:1:1::6",
-      "kavlan-4": "2001:660:4406:790:1:1::6",
-      "kavlan-5": "2001:660:4406:791:1:1::6",
-      "kavlan-6": "2001:660:4406:792:1:1::6",
-      "kavlan-7": "2001:660:4406:793:1:1::6",
-      "kavlan-8": "2001:660:4406:794:1:1::6",
-      "kavlan-9": "2001:660:4406:795:1:1::6"
+      "kavlan-1": "2001:660:4406:780:1:1:0:6",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:6",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:6",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:6",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:6",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:6",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:6",
+      "kavlan-2": "2001:660:4406:781:1:1:0:6",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:6",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:6",
+      "kavlan-3": "2001:660:4406:782:1:1:0:6",
+      "kavlan-4": "2001:660:4406:790:1:1:0:6",
+      "kavlan-5": "2001:660:4406:791:1:1:0:6",
+      "kavlan-6": "2001:660:4406:792:1:1:0:6",
+      "kavlan-7": "2001:660:4406:793:1:1:0:6",
+      "kavlan-8": "2001:660:4406:794:1:1:0:6",
+      "kavlan-9": "2001:660:4406:795:1:1:0:6"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.6",
-      "ip6": "2001:660:4406:700:1:0::6",
+      "ip6": "2001:660:4406:700:1::6",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f8:70",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.106",
-      "ip6": "2001:660:4406:700:1:1::6",
+      "ip6": "2001:660:4406:700:1:1:0:6",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f8:72",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-60.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-60.json
index 796fe6b1e8ccd03ef93aacdc85fef7473edd7f39..0ee122fb719a1a42563a48348ce2940db0920a8a 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-60.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-60.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::3c",
-      "kavlan-11": "2001:660:4406:1a0:701:0::3c",
-      "kavlan-12": "2001:660:4406:2a0:701:0::3c",
-      "kavlan-13": "2001:660:4406:4a0:701:0::3c",
-      "kavlan-14": "2001:660:4406:5a0:701:0::3c",
-      "kavlan-16": "2001:660:4406:7a0:701:0::3c",
-      "kavlan-18": "2001:660:4406:8a0:701:0::3c",
-      "kavlan-2": "2001:660:4406:781:1:0::3c",
-      "kavlan-20": "2001:660:4406:3a0:701:0::3c",
-      "kavlan-21": "2001:660:4406:6a0:701:0::3c",
-      "kavlan-3": "2001:660:4406:782:1:0::3c",
-      "kavlan-4": "2001:660:4406:790:1:0::3c",
-      "kavlan-5": "2001:660:4406:791:1:0::3c",
-      "kavlan-6": "2001:660:4406:792:1:0::3c",
-      "kavlan-7": "2001:660:4406:793:1:0::3c",
-      "kavlan-8": "2001:660:4406:794:1:0::3c",
-      "kavlan-9": "2001:660:4406:795:1:0::3c"
+      "kavlan-1": "2001:660:4406:780:1::3c",
+      "kavlan-11": "2001:660:4406:1a0:701::3c",
+      "kavlan-12": "2001:660:4406:2a0:701::3c",
+      "kavlan-13": "2001:660:4406:4a0:701::3c",
+      "kavlan-14": "2001:660:4406:5a0:701::3c",
+      "kavlan-16": "2001:660:4406:7a0:701::3c",
+      "kavlan-18": "2001:660:4406:8a0:701::3c",
+      "kavlan-2": "2001:660:4406:781:1::3c",
+      "kavlan-20": "2001:660:4406:3a0:701::3c",
+      "kavlan-21": "2001:660:4406:6a0:701::3c",
+      "kavlan-3": "2001:660:4406:782:1::3c",
+      "kavlan-4": "2001:660:4406:790:1::3c",
+      "kavlan-5": "2001:660:4406:791:1::3c",
+      "kavlan-6": "2001:660:4406:792:1::3c",
+      "kavlan-7": "2001:660:4406:793:1::3c",
+      "kavlan-8": "2001:660:4406:794:1::3c",
+      "kavlan-9": "2001:660:4406:795:1::3c"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::3c",
-      "kavlan-11": "2001:660:4406:1a0:701:1::3c",
-      "kavlan-12": "2001:660:4406:2a0:701:1::3c",
-      "kavlan-13": "2001:660:4406:4a0:701:1::3c",
-      "kavlan-14": "2001:660:4406:5a0:701:1::3c",
-      "kavlan-16": "2001:660:4406:7a0:701:1::3c",
-      "kavlan-18": "2001:660:4406:8a0:701:1::3c",
-      "kavlan-2": "2001:660:4406:781:1:1::3c",
-      "kavlan-20": "2001:660:4406:3a0:701:1::3c",
-      "kavlan-21": "2001:660:4406:6a0:701:1::3c",
-      "kavlan-3": "2001:660:4406:782:1:1::3c",
-      "kavlan-4": "2001:660:4406:790:1:1::3c",
-      "kavlan-5": "2001:660:4406:791:1:1::3c",
-      "kavlan-6": "2001:660:4406:792:1:1::3c",
-      "kavlan-7": "2001:660:4406:793:1:1::3c",
-      "kavlan-8": "2001:660:4406:794:1:1::3c",
-      "kavlan-9": "2001:660:4406:795:1:1::3c"
+      "kavlan-1": "2001:660:4406:780:1:1:0:3c",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:3c",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:3c",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:3c",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:3c",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:3c",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:3c",
+      "kavlan-2": "2001:660:4406:781:1:1:0:3c",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:3c",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:3c",
+      "kavlan-3": "2001:660:4406:782:1:1:0:3c",
+      "kavlan-4": "2001:660:4406:790:1:1:0:3c",
+      "kavlan-5": "2001:660:4406:791:1:1:0:3c",
+      "kavlan-6": "2001:660:4406:792:1:1:0:3c",
+      "kavlan-7": "2001:660:4406:793:1:1:0:3c",
+      "kavlan-8": "2001:660:4406:794:1:1:0:3c",
+      "kavlan-9": "2001:660:4406:795:1:1:0:3c"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.60",
-      "ip6": "2001:660:4406:700:1:0::3c",
+      "ip6": "2001:660:4406:700:1::3c",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:80",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.160",
-      "ip6": "2001:660:4406:700:1:1::3c",
+      "ip6": "2001:660:4406:700:1:1:0:3c",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:82",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-61.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-61.json
index 640f8c335a673fe7ec80be5a4cee47e132c2b645..cdac7e421f7c7b425942a9865ebb35e8ff2d33fb 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-61.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-61.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::3d",
-      "kavlan-11": "2001:660:4406:1a0:701:0::3d",
-      "kavlan-12": "2001:660:4406:2a0:701:0::3d",
-      "kavlan-13": "2001:660:4406:4a0:701:0::3d",
-      "kavlan-14": "2001:660:4406:5a0:701:0::3d",
-      "kavlan-16": "2001:660:4406:7a0:701:0::3d",
-      "kavlan-18": "2001:660:4406:8a0:701:0::3d",
-      "kavlan-2": "2001:660:4406:781:1:0::3d",
-      "kavlan-20": "2001:660:4406:3a0:701:0::3d",
-      "kavlan-21": "2001:660:4406:6a0:701:0::3d",
-      "kavlan-3": "2001:660:4406:782:1:0::3d",
-      "kavlan-4": "2001:660:4406:790:1:0::3d",
-      "kavlan-5": "2001:660:4406:791:1:0::3d",
-      "kavlan-6": "2001:660:4406:792:1:0::3d",
-      "kavlan-7": "2001:660:4406:793:1:0::3d",
-      "kavlan-8": "2001:660:4406:794:1:0::3d",
-      "kavlan-9": "2001:660:4406:795:1:0::3d"
+      "kavlan-1": "2001:660:4406:780:1::3d",
+      "kavlan-11": "2001:660:4406:1a0:701::3d",
+      "kavlan-12": "2001:660:4406:2a0:701::3d",
+      "kavlan-13": "2001:660:4406:4a0:701::3d",
+      "kavlan-14": "2001:660:4406:5a0:701::3d",
+      "kavlan-16": "2001:660:4406:7a0:701::3d",
+      "kavlan-18": "2001:660:4406:8a0:701::3d",
+      "kavlan-2": "2001:660:4406:781:1::3d",
+      "kavlan-20": "2001:660:4406:3a0:701::3d",
+      "kavlan-21": "2001:660:4406:6a0:701::3d",
+      "kavlan-3": "2001:660:4406:782:1::3d",
+      "kavlan-4": "2001:660:4406:790:1::3d",
+      "kavlan-5": "2001:660:4406:791:1::3d",
+      "kavlan-6": "2001:660:4406:792:1::3d",
+      "kavlan-7": "2001:660:4406:793:1::3d",
+      "kavlan-8": "2001:660:4406:794:1::3d",
+      "kavlan-9": "2001:660:4406:795:1::3d"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::3d",
-      "kavlan-11": "2001:660:4406:1a0:701:1::3d",
-      "kavlan-12": "2001:660:4406:2a0:701:1::3d",
-      "kavlan-13": "2001:660:4406:4a0:701:1::3d",
-      "kavlan-14": "2001:660:4406:5a0:701:1::3d",
-      "kavlan-16": "2001:660:4406:7a0:701:1::3d",
-      "kavlan-18": "2001:660:4406:8a0:701:1::3d",
-      "kavlan-2": "2001:660:4406:781:1:1::3d",
-      "kavlan-20": "2001:660:4406:3a0:701:1::3d",
-      "kavlan-21": "2001:660:4406:6a0:701:1::3d",
-      "kavlan-3": "2001:660:4406:782:1:1::3d",
-      "kavlan-4": "2001:660:4406:790:1:1::3d",
-      "kavlan-5": "2001:660:4406:791:1:1::3d",
-      "kavlan-6": "2001:660:4406:792:1:1::3d",
-      "kavlan-7": "2001:660:4406:793:1:1::3d",
-      "kavlan-8": "2001:660:4406:794:1:1::3d",
-      "kavlan-9": "2001:660:4406:795:1:1::3d"
+      "kavlan-1": "2001:660:4406:780:1:1:0:3d",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:3d",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:3d",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:3d",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:3d",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:3d",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:3d",
+      "kavlan-2": "2001:660:4406:781:1:1:0:3d",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:3d",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:3d",
+      "kavlan-3": "2001:660:4406:782:1:1:0:3d",
+      "kavlan-4": "2001:660:4406:790:1:1:0:3d",
+      "kavlan-5": "2001:660:4406:791:1:1:0:3d",
+      "kavlan-6": "2001:660:4406:792:1:1:0:3d",
+      "kavlan-7": "2001:660:4406:793:1:1:0:3d",
+      "kavlan-8": "2001:660:4406:794:1:1:0:3d",
+      "kavlan-9": "2001:660:4406:795:1:1:0:3d"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.61",
-      "ip6": "2001:660:4406:700:1:0::3d",
+      "ip6": "2001:660:4406:700:1::3d",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:28",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.161",
-      "ip6": "2001:660:4406:700:1:1::3d",
+      "ip6": "2001:660:4406:700:1:1:0:3d",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:2a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-62.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-62.json
index 40f8858f793d531edf1b7bcbeb0ec955ad4071b4..449f3b9f563309e39d286fd76d988d8cb848102e 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-62.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-62.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::3e",
-      "kavlan-11": "2001:660:4406:1a0:701:0::3e",
-      "kavlan-12": "2001:660:4406:2a0:701:0::3e",
-      "kavlan-13": "2001:660:4406:4a0:701:0::3e",
-      "kavlan-14": "2001:660:4406:5a0:701:0::3e",
-      "kavlan-16": "2001:660:4406:7a0:701:0::3e",
-      "kavlan-18": "2001:660:4406:8a0:701:0::3e",
-      "kavlan-2": "2001:660:4406:781:1:0::3e",
-      "kavlan-20": "2001:660:4406:3a0:701:0::3e",
-      "kavlan-21": "2001:660:4406:6a0:701:0::3e",
-      "kavlan-3": "2001:660:4406:782:1:0::3e",
-      "kavlan-4": "2001:660:4406:790:1:0::3e",
-      "kavlan-5": "2001:660:4406:791:1:0::3e",
-      "kavlan-6": "2001:660:4406:792:1:0::3e",
-      "kavlan-7": "2001:660:4406:793:1:0::3e",
-      "kavlan-8": "2001:660:4406:794:1:0::3e",
-      "kavlan-9": "2001:660:4406:795:1:0::3e"
+      "kavlan-1": "2001:660:4406:780:1::3e",
+      "kavlan-11": "2001:660:4406:1a0:701::3e",
+      "kavlan-12": "2001:660:4406:2a0:701::3e",
+      "kavlan-13": "2001:660:4406:4a0:701::3e",
+      "kavlan-14": "2001:660:4406:5a0:701::3e",
+      "kavlan-16": "2001:660:4406:7a0:701::3e",
+      "kavlan-18": "2001:660:4406:8a0:701::3e",
+      "kavlan-2": "2001:660:4406:781:1::3e",
+      "kavlan-20": "2001:660:4406:3a0:701::3e",
+      "kavlan-21": "2001:660:4406:6a0:701::3e",
+      "kavlan-3": "2001:660:4406:782:1::3e",
+      "kavlan-4": "2001:660:4406:790:1::3e",
+      "kavlan-5": "2001:660:4406:791:1::3e",
+      "kavlan-6": "2001:660:4406:792:1::3e",
+      "kavlan-7": "2001:660:4406:793:1::3e",
+      "kavlan-8": "2001:660:4406:794:1::3e",
+      "kavlan-9": "2001:660:4406:795:1::3e"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::3e",
-      "kavlan-11": "2001:660:4406:1a0:701:1::3e",
-      "kavlan-12": "2001:660:4406:2a0:701:1::3e",
-      "kavlan-13": "2001:660:4406:4a0:701:1::3e",
-      "kavlan-14": "2001:660:4406:5a0:701:1::3e",
-      "kavlan-16": "2001:660:4406:7a0:701:1::3e",
-      "kavlan-18": "2001:660:4406:8a0:701:1::3e",
-      "kavlan-2": "2001:660:4406:781:1:1::3e",
-      "kavlan-20": "2001:660:4406:3a0:701:1::3e",
-      "kavlan-21": "2001:660:4406:6a0:701:1::3e",
-      "kavlan-3": "2001:660:4406:782:1:1::3e",
-      "kavlan-4": "2001:660:4406:790:1:1::3e",
-      "kavlan-5": "2001:660:4406:791:1:1::3e",
-      "kavlan-6": "2001:660:4406:792:1:1::3e",
-      "kavlan-7": "2001:660:4406:793:1:1::3e",
-      "kavlan-8": "2001:660:4406:794:1:1::3e",
-      "kavlan-9": "2001:660:4406:795:1:1::3e"
+      "kavlan-1": "2001:660:4406:780:1:1:0:3e",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:3e",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:3e",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:3e",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:3e",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:3e",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:3e",
+      "kavlan-2": "2001:660:4406:781:1:1:0:3e",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:3e",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:3e",
+      "kavlan-3": "2001:660:4406:782:1:1:0:3e",
+      "kavlan-4": "2001:660:4406:790:1:1:0:3e",
+      "kavlan-5": "2001:660:4406:791:1:1:0:3e",
+      "kavlan-6": "2001:660:4406:792:1:1:0:3e",
+      "kavlan-7": "2001:660:4406:793:1:1:0:3e",
+      "kavlan-8": "2001:660:4406:794:1:1:0:3e",
+      "kavlan-9": "2001:660:4406:795:1:1:0:3e"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.62",
-      "ip6": "2001:660:4406:700:1:0::3e",
+      "ip6": "2001:660:4406:700:1::3e",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:08",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.162",
-      "ip6": "2001:660:4406:700:1:1::3e",
+      "ip6": "2001:660:4406:700:1:1:0:3e",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:0a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-63.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-63.json
index f668618ece6e6156c6826a6ce306d8b4aa1d44e3..5c53972c39b33ad25373c8dffce69d8ddbd29354 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-63.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-63.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::3f",
-      "kavlan-11": "2001:660:4406:1a0:701:0::3f",
-      "kavlan-12": "2001:660:4406:2a0:701:0::3f",
-      "kavlan-13": "2001:660:4406:4a0:701:0::3f",
-      "kavlan-14": "2001:660:4406:5a0:701:0::3f",
-      "kavlan-16": "2001:660:4406:7a0:701:0::3f",
-      "kavlan-18": "2001:660:4406:8a0:701:0::3f",
-      "kavlan-2": "2001:660:4406:781:1:0::3f",
-      "kavlan-20": "2001:660:4406:3a0:701:0::3f",
-      "kavlan-21": "2001:660:4406:6a0:701:0::3f",
-      "kavlan-3": "2001:660:4406:782:1:0::3f",
-      "kavlan-4": "2001:660:4406:790:1:0::3f",
-      "kavlan-5": "2001:660:4406:791:1:0::3f",
-      "kavlan-6": "2001:660:4406:792:1:0::3f",
-      "kavlan-7": "2001:660:4406:793:1:0::3f",
-      "kavlan-8": "2001:660:4406:794:1:0::3f",
-      "kavlan-9": "2001:660:4406:795:1:0::3f"
+      "kavlan-1": "2001:660:4406:780:1::3f",
+      "kavlan-11": "2001:660:4406:1a0:701::3f",
+      "kavlan-12": "2001:660:4406:2a0:701::3f",
+      "kavlan-13": "2001:660:4406:4a0:701::3f",
+      "kavlan-14": "2001:660:4406:5a0:701::3f",
+      "kavlan-16": "2001:660:4406:7a0:701::3f",
+      "kavlan-18": "2001:660:4406:8a0:701::3f",
+      "kavlan-2": "2001:660:4406:781:1::3f",
+      "kavlan-20": "2001:660:4406:3a0:701::3f",
+      "kavlan-21": "2001:660:4406:6a0:701::3f",
+      "kavlan-3": "2001:660:4406:782:1::3f",
+      "kavlan-4": "2001:660:4406:790:1::3f",
+      "kavlan-5": "2001:660:4406:791:1::3f",
+      "kavlan-6": "2001:660:4406:792:1::3f",
+      "kavlan-7": "2001:660:4406:793:1::3f",
+      "kavlan-8": "2001:660:4406:794:1::3f",
+      "kavlan-9": "2001:660:4406:795:1::3f"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::3f",
-      "kavlan-11": "2001:660:4406:1a0:701:1::3f",
-      "kavlan-12": "2001:660:4406:2a0:701:1::3f",
-      "kavlan-13": "2001:660:4406:4a0:701:1::3f",
-      "kavlan-14": "2001:660:4406:5a0:701:1::3f",
-      "kavlan-16": "2001:660:4406:7a0:701:1::3f",
-      "kavlan-18": "2001:660:4406:8a0:701:1::3f",
-      "kavlan-2": "2001:660:4406:781:1:1::3f",
-      "kavlan-20": "2001:660:4406:3a0:701:1::3f",
-      "kavlan-21": "2001:660:4406:6a0:701:1::3f",
-      "kavlan-3": "2001:660:4406:782:1:1::3f",
-      "kavlan-4": "2001:660:4406:790:1:1::3f",
-      "kavlan-5": "2001:660:4406:791:1:1::3f",
-      "kavlan-6": "2001:660:4406:792:1:1::3f",
-      "kavlan-7": "2001:660:4406:793:1:1::3f",
-      "kavlan-8": "2001:660:4406:794:1:1::3f",
-      "kavlan-9": "2001:660:4406:795:1:1::3f"
+      "kavlan-1": "2001:660:4406:780:1:1:0:3f",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:3f",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:3f",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:3f",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:3f",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:3f",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:3f",
+      "kavlan-2": "2001:660:4406:781:1:1:0:3f",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:3f",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:3f",
+      "kavlan-3": "2001:660:4406:782:1:1:0:3f",
+      "kavlan-4": "2001:660:4406:790:1:1:0:3f",
+      "kavlan-5": "2001:660:4406:791:1:1:0:3f",
+      "kavlan-6": "2001:660:4406:792:1:1:0:3f",
+      "kavlan-7": "2001:660:4406:793:1:1:0:3f",
+      "kavlan-8": "2001:660:4406:794:1:1:0:3f",
+      "kavlan-9": "2001:660:4406:795:1:1:0:3f"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.63",
-      "ip6": "2001:660:4406:700:1:0::3f",
+      "ip6": "2001:660:4406:700:1::3f",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:cb:f0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.163",
-      "ip6": "2001:660:4406:700:1:1::3f",
+      "ip6": "2001:660:4406:700:1:1:0:3f",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:cb:f2",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-64.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-64.json
index a1592d95e3a9d11541b88fa882aad2e01179fda6..d16945d7b95735898084c21f4fe516b7e494ca6a 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-64.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-64.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::40",
-      "kavlan-11": "2001:660:4406:1a0:701:0::40",
-      "kavlan-12": "2001:660:4406:2a0:701:0::40",
-      "kavlan-13": "2001:660:4406:4a0:701:0::40",
-      "kavlan-14": "2001:660:4406:5a0:701:0::40",
-      "kavlan-16": "2001:660:4406:7a0:701:0::40",
-      "kavlan-18": "2001:660:4406:8a0:701:0::40",
-      "kavlan-2": "2001:660:4406:781:1:0::40",
-      "kavlan-20": "2001:660:4406:3a0:701:0::40",
-      "kavlan-21": "2001:660:4406:6a0:701:0::40",
-      "kavlan-3": "2001:660:4406:782:1:0::40",
-      "kavlan-4": "2001:660:4406:790:1:0::40",
-      "kavlan-5": "2001:660:4406:791:1:0::40",
-      "kavlan-6": "2001:660:4406:792:1:0::40",
-      "kavlan-7": "2001:660:4406:793:1:0::40",
-      "kavlan-8": "2001:660:4406:794:1:0::40",
-      "kavlan-9": "2001:660:4406:795:1:0::40"
+      "kavlan-1": "2001:660:4406:780:1::40",
+      "kavlan-11": "2001:660:4406:1a0:701::40",
+      "kavlan-12": "2001:660:4406:2a0:701::40",
+      "kavlan-13": "2001:660:4406:4a0:701::40",
+      "kavlan-14": "2001:660:4406:5a0:701::40",
+      "kavlan-16": "2001:660:4406:7a0:701::40",
+      "kavlan-18": "2001:660:4406:8a0:701::40",
+      "kavlan-2": "2001:660:4406:781:1::40",
+      "kavlan-20": "2001:660:4406:3a0:701::40",
+      "kavlan-21": "2001:660:4406:6a0:701::40",
+      "kavlan-3": "2001:660:4406:782:1::40",
+      "kavlan-4": "2001:660:4406:790:1::40",
+      "kavlan-5": "2001:660:4406:791:1::40",
+      "kavlan-6": "2001:660:4406:792:1::40",
+      "kavlan-7": "2001:660:4406:793:1::40",
+      "kavlan-8": "2001:660:4406:794:1::40",
+      "kavlan-9": "2001:660:4406:795:1::40"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::40",
-      "kavlan-11": "2001:660:4406:1a0:701:1::40",
-      "kavlan-12": "2001:660:4406:2a0:701:1::40",
-      "kavlan-13": "2001:660:4406:4a0:701:1::40",
-      "kavlan-14": "2001:660:4406:5a0:701:1::40",
-      "kavlan-16": "2001:660:4406:7a0:701:1::40",
-      "kavlan-18": "2001:660:4406:8a0:701:1::40",
-      "kavlan-2": "2001:660:4406:781:1:1::40",
-      "kavlan-20": "2001:660:4406:3a0:701:1::40",
-      "kavlan-21": "2001:660:4406:6a0:701:1::40",
-      "kavlan-3": "2001:660:4406:782:1:1::40",
-      "kavlan-4": "2001:660:4406:790:1:1::40",
-      "kavlan-5": "2001:660:4406:791:1:1::40",
-      "kavlan-6": "2001:660:4406:792:1:1::40",
-      "kavlan-7": "2001:660:4406:793:1:1::40",
-      "kavlan-8": "2001:660:4406:794:1:1::40",
-      "kavlan-9": "2001:660:4406:795:1:1::40"
+      "kavlan-1": "2001:660:4406:780:1:1:0:40",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:40",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:40",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:40",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:40",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:40",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:40",
+      "kavlan-2": "2001:660:4406:781:1:1:0:40",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:40",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:40",
+      "kavlan-3": "2001:660:4406:782:1:1:0:40",
+      "kavlan-4": "2001:660:4406:790:1:1:0:40",
+      "kavlan-5": "2001:660:4406:791:1:1:0:40",
+      "kavlan-6": "2001:660:4406:792:1:1:0:40",
+      "kavlan-7": "2001:660:4406:793:1:1:0:40",
+      "kavlan-8": "2001:660:4406:794:1:1:0:40",
+      "kavlan-9": "2001:660:4406:795:1:1:0:40"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.64",
-      "ip6": "2001:660:4406:700:1:0::40",
+      "ip6": "2001:660:4406:700:1::40",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:28",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.164",
-      "ip6": "2001:660:4406:700:1:1::40",
+      "ip6": "2001:660:4406:700:1:1:0:40",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:2a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-65.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-65.json
index 0f6fd6648856e9b687ccd5bcfa2a935b25d45546..90fc92e39436276e0051123a849c210a030a796b 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-65.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-65.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::41",
-      "kavlan-11": "2001:660:4406:1a0:701:0::41",
-      "kavlan-12": "2001:660:4406:2a0:701:0::41",
-      "kavlan-13": "2001:660:4406:4a0:701:0::41",
-      "kavlan-14": "2001:660:4406:5a0:701:0::41",
-      "kavlan-16": "2001:660:4406:7a0:701:0::41",
-      "kavlan-18": "2001:660:4406:8a0:701:0::41",
-      "kavlan-2": "2001:660:4406:781:1:0::41",
-      "kavlan-20": "2001:660:4406:3a0:701:0::41",
-      "kavlan-21": "2001:660:4406:6a0:701:0::41",
-      "kavlan-3": "2001:660:4406:782:1:0::41",
-      "kavlan-4": "2001:660:4406:790:1:0::41",
-      "kavlan-5": "2001:660:4406:791:1:0::41",
-      "kavlan-6": "2001:660:4406:792:1:0::41",
-      "kavlan-7": "2001:660:4406:793:1:0::41",
-      "kavlan-8": "2001:660:4406:794:1:0::41",
-      "kavlan-9": "2001:660:4406:795:1:0::41"
+      "kavlan-1": "2001:660:4406:780:1::41",
+      "kavlan-11": "2001:660:4406:1a0:701::41",
+      "kavlan-12": "2001:660:4406:2a0:701::41",
+      "kavlan-13": "2001:660:4406:4a0:701::41",
+      "kavlan-14": "2001:660:4406:5a0:701::41",
+      "kavlan-16": "2001:660:4406:7a0:701::41",
+      "kavlan-18": "2001:660:4406:8a0:701::41",
+      "kavlan-2": "2001:660:4406:781:1::41",
+      "kavlan-20": "2001:660:4406:3a0:701::41",
+      "kavlan-21": "2001:660:4406:6a0:701::41",
+      "kavlan-3": "2001:660:4406:782:1::41",
+      "kavlan-4": "2001:660:4406:790:1::41",
+      "kavlan-5": "2001:660:4406:791:1::41",
+      "kavlan-6": "2001:660:4406:792:1::41",
+      "kavlan-7": "2001:660:4406:793:1::41",
+      "kavlan-8": "2001:660:4406:794:1::41",
+      "kavlan-9": "2001:660:4406:795:1::41"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::41",
-      "kavlan-11": "2001:660:4406:1a0:701:1::41",
-      "kavlan-12": "2001:660:4406:2a0:701:1::41",
-      "kavlan-13": "2001:660:4406:4a0:701:1::41",
-      "kavlan-14": "2001:660:4406:5a0:701:1::41",
-      "kavlan-16": "2001:660:4406:7a0:701:1::41",
-      "kavlan-18": "2001:660:4406:8a0:701:1::41",
-      "kavlan-2": "2001:660:4406:781:1:1::41",
-      "kavlan-20": "2001:660:4406:3a0:701:1::41",
-      "kavlan-21": "2001:660:4406:6a0:701:1::41",
-      "kavlan-3": "2001:660:4406:782:1:1::41",
-      "kavlan-4": "2001:660:4406:790:1:1::41",
-      "kavlan-5": "2001:660:4406:791:1:1::41",
-      "kavlan-6": "2001:660:4406:792:1:1::41",
-      "kavlan-7": "2001:660:4406:793:1:1::41",
-      "kavlan-8": "2001:660:4406:794:1:1::41",
-      "kavlan-9": "2001:660:4406:795:1:1::41"
+      "kavlan-1": "2001:660:4406:780:1:1:0:41",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:41",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:41",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:41",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:41",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:41",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:41",
+      "kavlan-2": "2001:660:4406:781:1:1:0:41",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:41",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:41",
+      "kavlan-3": "2001:660:4406:782:1:1:0:41",
+      "kavlan-4": "2001:660:4406:790:1:1:0:41",
+      "kavlan-5": "2001:660:4406:791:1:1:0:41",
+      "kavlan-6": "2001:660:4406:792:1:1:0:41",
+      "kavlan-7": "2001:660:4406:793:1:1:0:41",
+      "kavlan-8": "2001:660:4406:794:1:1:0:41",
+      "kavlan-9": "2001:660:4406:795:1:1:0:41"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.65",
-      "ip6": "2001:660:4406:700:1:0::41",
+      "ip6": "2001:660:4406:700:1::41",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:10",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.165",
-      "ip6": "2001:660:4406:700:1:1::41",
+      "ip6": "2001:660:4406:700:1:1:0:41",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:12",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-66.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-66.json
index 9a9f8537034d6ab96a39a7fec41063b907591d26..30958d7e199a69eae24bb37fad1fee925bea4cae 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-66.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-66.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::42",
-      "kavlan-11": "2001:660:4406:1a0:701:0::42",
-      "kavlan-12": "2001:660:4406:2a0:701:0::42",
-      "kavlan-13": "2001:660:4406:4a0:701:0::42",
-      "kavlan-14": "2001:660:4406:5a0:701:0::42",
-      "kavlan-16": "2001:660:4406:7a0:701:0::42",
-      "kavlan-18": "2001:660:4406:8a0:701:0::42",
-      "kavlan-2": "2001:660:4406:781:1:0::42",
-      "kavlan-20": "2001:660:4406:3a0:701:0::42",
-      "kavlan-21": "2001:660:4406:6a0:701:0::42",
-      "kavlan-3": "2001:660:4406:782:1:0::42",
-      "kavlan-4": "2001:660:4406:790:1:0::42",
-      "kavlan-5": "2001:660:4406:791:1:0::42",
-      "kavlan-6": "2001:660:4406:792:1:0::42",
-      "kavlan-7": "2001:660:4406:793:1:0::42",
-      "kavlan-8": "2001:660:4406:794:1:0::42",
-      "kavlan-9": "2001:660:4406:795:1:0::42"
+      "kavlan-1": "2001:660:4406:780:1::42",
+      "kavlan-11": "2001:660:4406:1a0:701::42",
+      "kavlan-12": "2001:660:4406:2a0:701::42",
+      "kavlan-13": "2001:660:4406:4a0:701::42",
+      "kavlan-14": "2001:660:4406:5a0:701::42",
+      "kavlan-16": "2001:660:4406:7a0:701::42",
+      "kavlan-18": "2001:660:4406:8a0:701::42",
+      "kavlan-2": "2001:660:4406:781:1::42",
+      "kavlan-20": "2001:660:4406:3a0:701::42",
+      "kavlan-21": "2001:660:4406:6a0:701::42",
+      "kavlan-3": "2001:660:4406:782:1::42",
+      "kavlan-4": "2001:660:4406:790:1::42",
+      "kavlan-5": "2001:660:4406:791:1::42",
+      "kavlan-6": "2001:660:4406:792:1::42",
+      "kavlan-7": "2001:660:4406:793:1::42",
+      "kavlan-8": "2001:660:4406:794:1::42",
+      "kavlan-9": "2001:660:4406:795:1::42"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::42",
-      "kavlan-11": "2001:660:4406:1a0:701:1::42",
-      "kavlan-12": "2001:660:4406:2a0:701:1::42",
-      "kavlan-13": "2001:660:4406:4a0:701:1::42",
-      "kavlan-14": "2001:660:4406:5a0:701:1::42",
-      "kavlan-16": "2001:660:4406:7a0:701:1::42",
-      "kavlan-18": "2001:660:4406:8a0:701:1::42",
-      "kavlan-2": "2001:660:4406:781:1:1::42",
-      "kavlan-20": "2001:660:4406:3a0:701:1::42",
-      "kavlan-21": "2001:660:4406:6a0:701:1::42",
-      "kavlan-3": "2001:660:4406:782:1:1::42",
-      "kavlan-4": "2001:660:4406:790:1:1::42",
-      "kavlan-5": "2001:660:4406:791:1:1::42",
-      "kavlan-6": "2001:660:4406:792:1:1::42",
-      "kavlan-7": "2001:660:4406:793:1:1::42",
-      "kavlan-8": "2001:660:4406:794:1:1::42",
-      "kavlan-9": "2001:660:4406:795:1:1::42"
+      "kavlan-1": "2001:660:4406:780:1:1:0:42",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:42",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:42",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:42",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:42",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:42",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:42",
+      "kavlan-2": "2001:660:4406:781:1:1:0:42",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:42",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:42",
+      "kavlan-3": "2001:660:4406:782:1:1:0:42",
+      "kavlan-4": "2001:660:4406:790:1:1:0:42",
+      "kavlan-5": "2001:660:4406:791:1:1:0:42",
+      "kavlan-6": "2001:660:4406:792:1:1:0:42",
+      "kavlan-7": "2001:660:4406:793:1:1:0:42",
+      "kavlan-8": "2001:660:4406:794:1:1:0:42",
+      "kavlan-9": "2001:660:4406:795:1:1:0:42"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.66",
-      "ip6": "2001:660:4406:700:1:0::42",
+      "ip6": "2001:660:4406:700:1::42",
       "kavlan": true,
       "mac": "ec:f4:bb:cf:74:d8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.166",
-      "ip6": "2001:660:4406:700:1:1::42",
+      "ip6": "2001:660:4406:700:1:1:0:42",
       "kavlan": true,
       "mac": "ec:f4:bb:cf:74:da",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-67.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-67.json
index 0d9e0d0ac63caa83e4f79cc3478c10ae58012739..34af4700e62ee652d75000560cb4d6754bfe33be 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-67.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-67.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::43",
-      "kavlan-11": "2001:660:4406:1a0:701:0::43",
-      "kavlan-12": "2001:660:4406:2a0:701:0::43",
-      "kavlan-13": "2001:660:4406:4a0:701:0::43",
-      "kavlan-14": "2001:660:4406:5a0:701:0::43",
-      "kavlan-16": "2001:660:4406:7a0:701:0::43",
-      "kavlan-18": "2001:660:4406:8a0:701:0::43",
-      "kavlan-2": "2001:660:4406:781:1:0::43",
-      "kavlan-20": "2001:660:4406:3a0:701:0::43",
-      "kavlan-21": "2001:660:4406:6a0:701:0::43",
-      "kavlan-3": "2001:660:4406:782:1:0::43",
-      "kavlan-4": "2001:660:4406:790:1:0::43",
-      "kavlan-5": "2001:660:4406:791:1:0::43",
-      "kavlan-6": "2001:660:4406:792:1:0::43",
-      "kavlan-7": "2001:660:4406:793:1:0::43",
-      "kavlan-8": "2001:660:4406:794:1:0::43",
-      "kavlan-9": "2001:660:4406:795:1:0::43"
+      "kavlan-1": "2001:660:4406:780:1::43",
+      "kavlan-11": "2001:660:4406:1a0:701::43",
+      "kavlan-12": "2001:660:4406:2a0:701::43",
+      "kavlan-13": "2001:660:4406:4a0:701::43",
+      "kavlan-14": "2001:660:4406:5a0:701::43",
+      "kavlan-16": "2001:660:4406:7a0:701::43",
+      "kavlan-18": "2001:660:4406:8a0:701::43",
+      "kavlan-2": "2001:660:4406:781:1::43",
+      "kavlan-20": "2001:660:4406:3a0:701::43",
+      "kavlan-21": "2001:660:4406:6a0:701::43",
+      "kavlan-3": "2001:660:4406:782:1::43",
+      "kavlan-4": "2001:660:4406:790:1::43",
+      "kavlan-5": "2001:660:4406:791:1::43",
+      "kavlan-6": "2001:660:4406:792:1::43",
+      "kavlan-7": "2001:660:4406:793:1::43",
+      "kavlan-8": "2001:660:4406:794:1::43",
+      "kavlan-9": "2001:660:4406:795:1::43"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::43",
-      "kavlan-11": "2001:660:4406:1a0:701:1::43",
-      "kavlan-12": "2001:660:4406:2a0:701:1::43",
-      "kavlan-13": "2001:660:4406:4a0:701:1::43",
-      "kavlan-14": "2001:660:4406:5a0:701:1::43",
-      "kavlan-16": "2001:660:4406:7a0:701:1::43",
-      "kavlan-18": "2001:660:4406:8a0:701:1::43",
-      "kavlan-2": "2001:660:4406:781:1:1::43",
-      "kavlan-20": "2001:660:4406:3a0:701:1::43",
-      "kavlan-21": "2001:660:4406:6a0:701:1::43",
-      "kavlan-3": "2001:660:4406:782:1:1::43",
-      "kavlan-4": "2001:660:4406:790:1:1::43",
-      "kavlan-5": "2001:660:4406:791:1:1::43",
-      "kavlan-6": "2001:660:4406:792:1:1::43",
-      "kavlan-7": "2001:660:4406:793:1:1::43",
-      "kavlan-8": "2001:660:4406:794:1:1::43",
-      "kavlan-9": "2001:660:4406:795:1:1::43"
+      "kavlan-1": "2001:660:4406:780:1:1:0:43",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:43",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:43",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:43",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:43",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:43",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:43",
+      "kavlan-2": "2001:660:4406:781:1:1:0:43",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:43",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:43",
+      "kavlan-3": "2001:660:4406:782:1:1:0:43",
+      "kavlan-4": "2001:660:4406:790:1:1:0:43",
+      "kavlan-5": "2001:660:4406:791:1:1:0:43",
+      "kavlan-6": "2001:660:4406:792:1:1:0:43",
+      "kavlan-7": "2001:660:4406:793:1:1:0:43",
+      "kavlan-8": "2001:660:4406:794:1:1:0:43",
+      "kavlan-9": "2001:660:4406:795:1:1:0:43"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.67",
-      "ip6": "2001:660:4406:700:1:0::43",
+      "ip6": "2001:660:4406:700:1::43",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:f0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.167",
-      "ip6": "2001:660:4406:700:1:1::43",
+      "ip6": "2001:660:4406:700:1:1:0:43",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:f2",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-68.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-68.json
index 61d4f80448ac859211d7a682e206e40818abbd24..d8d7dd389a79f18ec060f521e2f33bc184e4aeea 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-68.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-68.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::44",
-      "kavlan-11": "2001:660:4406:1a0:701:0::44",
-      "kavlan-12": "2001:660:4406:2a0:701:0::44",
-      "kavlan-13": "2001:660:4406:4a0:701:0::44",
-      "kavlan-14": "2001:660:4406:5a0:701:0::44",
-      "kavlan-16": "2001:660:4406:7a0:701:0::44",
-      "kavlan-18": "2001:660:4406:8a0:701:0::44",
-      "kavlan-2": "2001:660:4406:781:1:0::44",
-      "kavlan-20": "2001:660:4406:3a0:701:0::44",
-      "kavlan-21": "2001:660:4406:6a0:701:0::44",
-      "kavlan-3": "2001:660:4406:782:1:0::44",
-      "kavlan-4": "2001:660:4406:790:1:0::44",
-      "kavlan-5": "2001:660:4406:791:1:0::44",
-      "kavlan-6": "2001:660:4406:792:1:0::44",
-      "kavlan-7": "2001:660:4406:793:1:0::44",
-      "kavlan-8": "2001:660:4406:794:1:0::44",
-      "kavlan-9": "2001:660:4406:795:1:0::44"
+      "kavlan-1": "2001:660:4406:780:1::44",
+      "kavlan-11": "2001:660:4406:1a0:701::44",
+      "kavlan-12": "2001:660:4406:2a0:701::44",
+      "kavlan-13": "2001:660:4406:4a0:701::44",
+      "kavlan-14": "2001:660:4406:5a0:701::44",
+      "kavlan-16": "2001:660:4406:7a0:701::44",
+      "kavlan-18": "2001:660:4406:8a0:701::44",
+      "kavlan-2": "2001:660:4406:781:1::44",
+      "kavlan-20": "2001:660:4406:3a0:701::44",
+      "kavlan-21": "2001:660:4406:6a0:701::44",
+      "kavlan-3": "2001:660:4406:782:1::44",
+      "kavlan-4": "2001:660:4406:790:1::44",
+      "kavlan-5": "2001:660:4406:791:1::44",
+      "kavlan-6": "2001:660:4406:792:1::44",
+      "kavlan-7": "2001:660:4406:793:1::44",
+      "kavlan-8": "2001:660:4406:794:1::44",
+      "kavlan-9": "2001:660:4406:795:1::44"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::44",
-      "kavlan-11": "2001:660:4406:1a0:701:1::44",
-      "kavlan-12": "2001:660:4406:2a0:701:1::44",
-      "kavlan-13": "2001:660:4406:4a0:701:1::44",
-      "kavlan-14": "2001:660:4406:5a0:701:1::44",
-      "kavlan-16": "2001:660:4406:7a0:701:1::44",
-      "kavlan-18": "2001:660:4406:8a0:701:1::44",
-      "kavlan-2": "2001:660:4406:781:1:1::44",
-      "kavlan-20": "2001:660:4406:3a0:701:1::44",
-      "kavlan-21": "2001:660:4406:6a0:701:1::44",
-      "kavlan-3": "2001:660:4406:782:1:1::44",
-      "kavlan-4": "2001:660:4406:790:1:1::44",
-      "kavlan-5": "2001:660:4406:791:1:1::44",
-      "kavlan-6": "2001:660:4406:792:1:1::44",
-      "kavlan-7": "2001:660:4406:793:1:1::44",
-      "kavlan-8": "2001:660:4406:794:1:1::44",
-      "kavlan-9": "2001:660:4406:795:1:1::44"
+      "kavlan-1": "2001:660:4406:780:1:1:0:44",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:44",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:44",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:44",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:44",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:44",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:44",
+      "kavlan-2": "2001:660:4406:781:1:1:0:44",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:44",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:44",
+      "kavlan-3": "2001:660:4406:782:1:1:0:44",
+      "kavlan-4": "2001:660:4406:790:1:1:0:44",
+      "kavlan-5": "2001:660:4406:791:1:1:0:44",
+      "kavlan-6": "2001:660:4406:792:1:1:0:44",
+      "kavlan-7": "2001:660:4406:793:1:1:0:44",
+      "kavlan-8": "2001:660:4406:794:1:1:0:44",
+      "kavlan-9": "2001:660:4406:795:1:1:0:44"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.68",
-      "ip6": "2001:660:4406:700:1:0::44",
+      "ip6": "2001:660:4406:700:1::44",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:e8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.168",
-      "ip6": "2001:660:4406:700:1:1::44",
+      "ip6": "2001:660:4406:700:1:1:0:44",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:ea",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-69.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-69.json
index c664d241219fd941e8adc7a07b9e3c7b2fd6e6a4..055df8266f49808c112845a920b7c113621d0e0b 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-69.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-69.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::45",
-      "kavlan-11": "2001:660:4406:1a0:701:0::45",
-      "kavlan-12": "2001:660:4406:2a0:701:0::45",
-      "kavlan-13": "2001:660:4406:4a0:701:0::45",
-      "kavlan-14": "2001:660:4406:5a0:701:0::45",
-      "kavlan-16": "2001:660:4406:7a0:701:0::45",
-      "kavlan-18": "2001:660:4406:8a0:701:0::45",
-      "kavlan-2": "2001:660:4406:781:1:0::45",
-      "kavlan-20": "2001:660:4406:3a0:701:0::45",
-      "kavlan-21": "2001:660:4406:6a0:701:0::45",
-      "kavlan-3": "2001:660:4406:782:1:0::45",
-      "kavlan-4": "2001:660:4406:790:1:0::45",
-      "kavlan-5": "2001:660:4406:791:1:0::45",
-      "kavlan-6": "2001:660:4406:792:1:0::45",
-      "kavlan-7": "2001:660:4406:793:1:0::45",
-      "kavlan-8": "2001:660:4406:794:1:0::45",
-      "kavlan-9": "2001:660:4406:795:1:0::45"
+      "kavlan-1": "2001:660:4406:780:1::45",
+      "kavlan-11": "2001:660:4406:1a0:701::45",
+      "kavlan-12": "2001:660:4406:2a0:701::45",
+      "kavlan-13": "2001:660:4406:4a0:701::45",
+      "kavlan-14": "2001:660:4406:5a0:701::45",
+      "kavlan-16": "2001:660:4406:7a0:701::45",
+      "kavlan-18": "2001:660:4406:8a0:701::45",
+      "kavlan-2": "2001:660:4406:781:1::45",
+      "kavlan-20": "2001:660:4406:3a0:701::45",
+      "kavlan-21": "2001:660:4406:6a0:701::45",
+      "kavlan-3": "2001:660:4406:782:1::45",
+      "kavlan-4": "2001:660:4406:790:1::45",
+      "kavlan-5": "2001:660:4406:791:1::45",
+      "kavlan-6": "2001:660:4406:792:1::45",
+      "kavlan-7": "2001:660:4406:793:1::45",
+      "kavlan-8": "2001:660:4406:794:1::45",
+      "kavlan-9": "2001:660:4406:795:1::45"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::45",
-      "kavlan-11": "2001:660:4406:1a0:701:1::45",
-      "kavlan-12": "2001:660:4406:2a0:701:1::45",
-      "kavlan-13": "2001:660:4406:4a0:701:1::45",
-      "kavlan-14": "2001:660:4406:5a0:701:1::45",
-      "kavlan-16": "2001:660:4406:7a0:701:1::45",
-      "kavlan-18": "2001:660:4406:8a0:701:1::45",
-      "kavlan-2": "2001:660:4406:781:1:1::45",
-      "kavlan-20": "2001:660:4406:3a0:701:1::45",
-      "kavlan-21": "2001:660:4406:6a0:701:1::45",
-      "kavlan-3": "2001:660:4406:782:1:1::45",
-      "kavlan-4": "2001:660:4406:790:1:1::45",
-      "kavlan-5": "2001:660:4406:791:1:1::45",
-      "kavlan-6": "2001:660:4406:792:1:1::45",
-      "kavlan-7": "2001:660:4406:793:1:1::45",
-      "kavlan-8": "2001:660:4406:794:1:1::45",
-      "kavlan-9": "2001:660:4406:795:1:1::45"
+      "kavlan-1": "2001:660:4406:780:1:1:0:45",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:45",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:45",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:45",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:45",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:45",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:45",
+      "kavlan-2": "2001:660:4406:781:1:1:0:45",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:45",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:45",
+      "kavlan-3": "2001:660:4406:782:1:1:0:45",
+      "kavlan-4": "2001:660:4406:790:1:1:0:45",
+      "kavlan-5": "2001:660:4406:791:1:1:0:45",
+      "kavlan-6": "2001:660:4406:792:1:1:0:45",
+      "kavlan-7": "2001:660:4406:793:1:1:0:45",
+      "kavlan-8": "2001:660:4406:794:1:1:0:45",
+      "kavlan-9": "2001:660:4406:795:1:1:0:45"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.69",
-      "ip6": "2001:660:4406:700:1:0::45",
+      "ip6": "2001:660:4406:700:1::45",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:10",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.169",
-      "ip6": "2001:660:4406:700:1:1::45",
+      "ip6": "2001:660:4406:700:1:1:0:45",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:12",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-7.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-7.json
index 2e83be719c01697d39c3b0aa9323eace1f0ffd25..65ba7ee60185481b0fb60ab9a71a5e1afda03c67 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-7.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-7.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::7",
-      "kavlan-11": "2001:660:4406:1a0:701:0::7",
-      "kavlan-12": "2001:660:4406:2a0:701:0::7",
-      "kavlan-13": "2001:660:4406:4a0:701:0::7",
-      "kavlan-14": "2001:660:4406:5a0:701:0::7",
-      "kavlan-16": "2001:660:4406:7a0:701:0::7",
-      "kavlan-18": "2001:660:4406:8a0:701:0::7",
-      "kavlan-2": "2001:660:4406:781:1:0::7",
-      "kavlan-20": "2001:660:4406:3a0:701:0::7",
-      "kavlan-21": "2001:660:4406:6a0:701:0::7",
-      "kavlan-3": "2001:660:4406:782:1:0::7",
-      "kavlan-4": "2001:660:4406:790:1:0::7",
-      "kavlan-5": "2001:660:4406:791:1:0::7",
-      "kavlan-6": "2001:660:4406:792:1:0::7",
-      "kavlan-7": "2001:660:4406:793:1:0::7",
-      "kavlan-8": "2001:660:4406:794:1:0::7",
-      "kavlan-9": "2001:660:4406:795:1:0::7"
+      "kavlan-1": "2001:660:4406:780:1::7",
+      "kavlan-11": "2001:660:4406:1a0:701::7",
+      "kavlan-12": "2001:660:4406:2a0:701::7",
+      "kavlan-13": "2001:660:4406:4a0:701::7",
+      "kavlan-14": "2001:660:4406:5a0:701::7",
+      "kavlan-16": "2001:660:4406:7a0:701::7",
+      "kavlan-18": "2001:660:4406:8a0:701::7",
+      "kavlan-2": "2001:660:4406:781:1::7",
+      "kavlan-20": "2001:660:4406:3a0:701::7",
+      "kavlan-21": "2001:660:4406:6a0:701::7",
+      "kavlan-3": "2001:660:4406:782:1::7",
+      "kavlan-4": "2001:660:4406:790:1::7",
+      "kavlan-5": "2001:660:4406:791:1::7",
+      "kavlan-6": "2001:660:4406:792:1::7",
+      "kavlan-7": "2001:660:4406:793:1::7",
+      "kavlan-8": "2001:660:4406:794:1::7",
+      "kavlan-9": "2001:660:4406:795:1::7"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::7",
-      "kavlan-11": "2001:660:4406:1a0:701:1::7",
-      "kavlan-12": "2001:660:4406:2a0:701:1::7",
-      "kavlan-13": "2001:660:4406:4a0:701:1::7",
-      "kavlan-14": "2001:660:4406:5a0:701:1::7",
-      "kavlan-16": "2001:660:4406:7a0:701:1::7",
-      "kavlan-18": "2001:660:4406:8a0:701:1::7",
-      "kavlan-2": "2001:660:4406:781:1:1::7",
-      "kavlan-20": "2001:660:4406:3a0:701:1::7",
-      "kavlan-21": "2001:660:4406:6a0:701:1::7",
-      "kavlan-3": "2001:660:4406:782:1:1::7",
-      "kavlan-4": "2001:660:4406:790:1:1::7",
-      "kavlan-5": "2001:660:4406:791:1:1::7",
-      "kavlan-6": "2001:660:4406:792:1:1::7",
-      "kavlan-7": "2001:660:4406:793:1:1::7",
-      "kavlan-8": "2001:660:4406:794:1:1::7",
-      "kavlan-9": "2001:660:4406:795:1:1::7"
+      "kavlan-1": "2001:660:4406:780:1:1:0:7",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:7",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:7",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:7",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:7",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:7",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:7",
+      "kavlan-2": "2001:660:4406:781:1:1:0:7",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:7",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:7",
+      "kavlan-3": "2001:660:4406:782:1:1:0:7",
+      "kavlan-4": "2001:660:4406:790:1:1:0:7",
+      "kavlan-5": "2001:660:4406:791:1:1:0:7",
+      "kavlan-6": "2001:660:4406:792:1:1:0:7",
+      "kavlan-7": "2001:660:4406:793:1:1:0:7",
+      "kavlan-8": "2001:660:4406:794:1:1:0:7",
+      "kavlan-9": "2001:660:4406:795:1:1:0:7"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.7",
-      "ip6": "2001:660:4406:700:1:0::7",
+      "ip6": "2001:660:4406:700:1::7",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f4:08",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.107",
-      "ip6": "2001:660:4406:700:1:1::7",
+      "ip6": "2001:660:4406:700:1:1:0:7",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f4:0a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-70.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-70.json
index 09fc7e59aa72a11aac87abf9f7e4548df465581e..4e038e2f5317c9373cdd99cc1252c1f68c9973d1 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-70.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-70.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::46",
-      "kavlan-11": "2001:660:4406:1a0:701:0::46",
-      "kavlan-12": "2001:660:4406:2a0:701:0::46",
-      "kavlan-13": "2001:660:4406:4a0:701:0::46",
-      "kavlan-14": "2001:660:4406:5a0:701:0::46",
-      "kavlan-16": "2001:660:4406:7a0:701:0::46",
-      "kavlan-18": "2001:660:4406:8a0:701:0::46",
-      "kavlan-2": "2001:660:4406:781:1:0::46",
-      "kavlan-20": "2001:660:4406:3a0:701:0::46",
-      "kavlan-21": "2001:660:4406:6a0:701:0::46",
-      "kavlan-3": "2001:660:4406:782:1:0::46",
-      "kavlan-4": "2001:660:4406:790:1:0::46",
-      "kavlan-5": "2001:660:4406:791:1:0::46",
-      "kavlan-6": "2001:660:4406:792:1:0::46",
-      "kavlan-7": "2001:660:4406:793:1:0::46",
-      "kavlan-8": "2001:660:4406:794:1:0::46",
-      "kavlan-9": "2001:660:4406:795:1:0::46"
+      "kavlan-1": "2001:660:4406:780:1::46",
+      "kavlan-11": "2001:660:4406:1a0:701::46",
+      "kavlan-12": "2001:660:4406:2a0:701::46",
+      "kavlan-13": "2001:660:4406:4a0:701::46",
+      "kavlan-14": "2001:660:4406:5a0:701::46",
+      "kavlan-16": "2001:660:4406:7a0:701::46",
+      "kavlan-18": "2001:660:4406:8a0:701::46",
+      "kavlan-2": "2001:660:4406:781:1::46",
+      "kavlan-20": "2001:660:4406:3a0:701::46",
+      "kavlan-21": "2001:660:4406:6a0:701::46",
+      "kavlan-3": "2001:660:4406:782:1::46",
+      "kavlan-4": "2001:660:4406:790:1::46",
+      "kavlan-5": "2001:660:4406:791:1::46",
+      "kavlan-6": "2001:660:4406:792:1::46",
+      "kavlan-7": "2001:660:4406:793:1::46",
+      "kavlan-8": "2001:660:4406:794:1::46",
+      "kavlan-9": "2001:660:4406:795:1::46"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::46",
-      "kavlan-11": "2001:660:4406:1a0:701:1::46",
-      "kavlan-12": "2001:660:4406:2a0:701:1::46",
-      "kavlan-13": "2001:660:4406:4a0:701:1::46",
-      "kavlan-14": "2001:660:4406:5a0:701:1::46",
-      "kavlan-16": "2001:660:4406:7a0:701:1::46",
-      "kavlan-18": "2001:660:4406:8a0:701:1::46",
-      "kavlan-2": "2001:660:4406:781:1:1::46",
-      "kavlan-20": "2001:660:4406:3a0:701:1::46",
-      "kavlan-21": "2001:660:4406:6a0:701:1::46",
-      "kavlan-3": "2001:660:4406:782:1:1::46",
-      "kavlan-4": "2001:660:4406:790:1:1::46",
-      "kavlan-5": "2001:660:4406:791:1:1::46",
-      "kavlan-6": "2001:660:4406:792:1:1::46",
-      "kavlan-7": "2001:660:4406:793:1:1::46",
-      "kavlan-8": "2001:660:4406:794:1:1::46",
-      "kavlan-9": "2001:660:4406:795:1:1::46"
+      "kavlan-1": "2001:660:4406:780:1:1:0:46",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:46",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:46",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:46",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:46",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:46",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:46",
+      "kavlan-2": "2001:660:4406:781:1:1:0:46",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:46",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:46",
+      "kavlan-3": "2001:660:4406:782:1:1:0:46",
+      "kavlan-4": "2001:660:4406:790:1:1:0:46",
+      "kavlan-5": "2001:660:4406:791:1:1:0:46",
+      "kavlan-6": "2001:660:4406:792:1:1:0:46",
+      "kavlan-7": "2001:660:4406:793:1:1:0:46",
+      "kavlan-8": "2001:660:4406:794:1:1:0:46",
+      "kavlan-9": "2001:660:4406:795:1:1:0:46"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.70",
-      "ip6": "2001:660:4406:700:1:0::46",
+      "ip6": "2001:660:4406:700:1::46",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:b0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.170",
-      "ip6": "2001:660:4406:700:1:1::46",
+      "ip6": "2001:660:4406:700:1:1:0:46",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:b2",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-71.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-71.json
index 265b652281477d95fd0faec2062855e055edd523..a80e1848f589a81cb26881843323ddc6e2d3ca8c 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-71.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-71.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::47",
-      "kavlan-11": "2001:660:4406:1a0:701:0::47",
-      "kavlan-12": "2001:660:4406:2a0:701:0::47",
-      "kavlan-13": "2001:660:4406:4a0:701:0::47",
-      "kavlan-14": "2001:660:4406:5a0:701:0::47",
-      "kavlan-16": "2001:660:4406:7a0:701:0::47",
-      "kavlan-18": "2001:660:4406:8a0:701:0::47",
-      "kavlan-2": "2001:660:4406:781:1:0::47",
-      "kavlan-20": "2001:660:4406:3a0:701:0::47",
-      "kavlan-21": "2001:660:4406:6a0:701:0::47",
-      "kavlan-3": "2001:660:4406:782:1:0::47",
-      "kavlan-4": "2001:660:4406:790:1:0::47",
-      "kavlan-5": "2001:660:4406:791:1:0::47",
-      "kavlan-6": "2001:660:4406:792:1:0::47",
-      "kavlan-7": "2001:660:4406:793:1:0::47",
-      "kavlan-8": "2001:660:4406:794:1:0::47",
-      "kavlan-9": "2001:660:4406:795:1:0::47"
+      "kavlan-1": "2001:660:4406:780:1::47",
+      "kavlan-11": "2001:660:4406:1a0:701::47",
+      "kavlan-12": "2001:660:4406:2a0:701::47",
+      "kavlan-13": "2001:660:4406:4a0:701::47",
+      "kavlan-14": "2001:660:4406:5a0:701::47",
+      "kavlan-16": "2001:660:4406:7a0:701::47",
+      "kavlan-18": "2001:660:4406:8a0:701::47",
+      "kavlan-2": "2001:660:4406:781:1::47",
+      "kavlan-20": "2001:660:4406:3a0:701::47",
+      "kavlan-21": "2001:660:4406:6a0:701::47",
+      "kavlan-3": "2001:660:4406:782:1::47",
+      "kavlan-4": "2001:660:4406:790:1::47",
+      "kavlan-5": "2001:660:4406:791:1::47",
+      "kavlan-6": "2001:660:4406:792:1::47",
+      "kavlan-7": "2001:660:4406:793:1::47",
+      "kavlan-8": "2001:660:4406:794:1::47",
+      "kavlan-9": "2001:660:4406:795:1::47"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::47",
-      "kavlan-11": "2001:660:4406:1a0:701:1::47",
-      "kavlan-12": "2001:660:4406:2a0:701:1::47",
-      "kavlan-13": "2001:660:4406:4a0:701:1::47",
-      "kavlan-14": "2001:660:4406:5a0:701:1::47",
-      "kavlan-16": "2001:660:4406:7a0:701:1::47",
-      "kavlan-18": "2001:660:4406:8a0:701:1::47",
-      "kavlan-2": "2001:660:4406:781:1:1::47",
-      "kavlan-20": "2001:660:4406:3a0:701:1::47",
-      "kavlan-21": "2001:660:4406:6a0:701:1::47",
-      "kavlan-3": "2001:660:4406:782:1:1::47",
-      "kavlan-4": "2001:660:4406:790:1:1::47",
-      "kavlan-5": "2001:660:4406:791:1:1::47",
-      "kavlan-6": "2001:660:4406:792:1:1::47",
-      "kavlan-7": "2001:660:4406:793:1:1::47",
-      "kavlan-8": "2001:660:4406:794:1:1::47",
-      "kavlan-9": "2001:660:4406:795:1:1::47"
+      "kavlan-1": "2001:660:4406:780:1:1:0:47",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:47",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:47",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:47",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:47",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:47",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:47",
+      "kavlan-2": "2001:660:4406:781:1:1:0:47",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:47",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:47",
+      "kavlan-3": "2001:660:4406:782:1:1:0:47",
+      "kavlan-4": "2001:660:4406:790:1:1:0:47",
+      "kavlan-5": "2001:660:4406:791:1:1:0:47",
+      "kavlan-6": "2001:660:4406:792:1:1:0:47",
+      "kavlan-7": "2001:660:4406:793:1:1:0:47",
+      "kavlan-8": "2001:660:4406:794:1:1:0:47",
+      "kavlan-9": "2001:660:4406:795:1:1:0:47"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.71",
-      "ip6": "2001:660:4406:700:1:0::47",
+      "ip6": "2001:660:4406:700:1::47",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:e0",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.171",
-      "ip6": "2001:660:4406:700:1:1::47",
+      "ip6": "2001:660:4406:700:1:1:0:47",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:e2",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-72.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-72.json
index 358ba0f24728557d7515cb3235dc0267b92fcb4f..9573d073e2a6e17a51a31809eca69f83f3951062 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-72.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-72.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::48",
-      "kavlan-11": "2001:660:4406:1a0:701:0::48",
-      "kavlan-12": "2001:660:4406:2a0:701:0::48",
-      "kavlan-13": "2001:660:4406:4a0:701:0::48",
-      "kavlan-14": "2001:660:4406:5a0:701:0::48",
-      "kavlan-16": "2001:660:4406:7a0:701:0::48",
-      "kavlan-18": "2001:660:4406:8a0:701:0::48",
-      "kavlan-2": "2001:660:4406:781:1:0::48",
-      "kavlan-20": "2001:660:4406:3a0:701:0::48",
-      "kavlan-21": "2001:660:4406:6a0:701:0::48",
-      "kavlan-3": "2001:660:4406:782:1:0::48",
-      "kavlan-4": "2001:660:4406:790:1:0::48",
-      "kavlan-5": "2001:660:4406:791:1:0::48",
-      "kavlan-6": "2001:660:4406:792:1:0::48",
-      "kavlan-7": "2001:660:4406:793:1:0::48",
-      "kavlan-8": "2001:660:4406:794:1:0::48",
-      "kavlan-9": "2001:660:4406:795:1:0::48"
+      "kavlan-1": "2001:660:4406:780:1::48",
+      "kavlan-11": "2001:660:4406:1a0:701::48",
+      "kavlan-12": "2001:660:4406:2a0:701::48",
+      "kavlan-13": "2001:660:4406:4a0:701::48",
+      "kavlan-14": "2001:660:4406:5a0:701::48",
+      "kavlan-16": "2001:660:4406:7a0:701::48",
+      "kavlan-18": "2001:660:4406:8a0:701::48",
+      "kavlan-2": "2001:660:4406:781:1::48",
+      "kavlan-20": "2001:660:4406:3a0:701::48",
+      "kavlan-21": "2001:660:4406:6a0:701::48",
+      "kavlan-3": "2001:660:4406:782:1::48",
+      "kavlan-4": "2001:660:4406:790:1::48",
+      "kavlan-5": "2001:660:4406:791:1::48",
+      "kavlan-6": "2001:660:4406:792:1::48",
+      "kavlan-7": "2001:660:4406:793:1::48",
+      "kavlan-8": "2001:660:4406:794:1::48",
+      "kavlan-9": "2001:660:4406:795:1::48"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::48",
-      "kavlan-11": "2001:660:4406:1a0:701:1::48",
-      "kavlan-12": "2001:660:4406:2a0:701:1::48",
-      "kavlan-13": "2001:660:4406:4a0:701:1::48",
-      "kavlan-14": "2001:660:4406:5a0:701:1::48",
-      "kavlan-16": "2001:660:4406:7a0:701:1::48",
-      "kavlan-18": "2001:660:4406:8a0:701:1::48",
-      "kavlan-2": "2001:660:4406:781:1:1::48",
-      "kavlan-20": "2001:660:4406:3a0:701:1::48",
-      "kavlan-21": "2001:660:4406:6a0:701:1::48",
-      "kavlan-3": "2001:660:4406:782:1:1::48",
-      "kavlan-4": "2001:660:4406:790:1:1::48",
-      "kavlan-5": "2001:660:4406:791:1:1::48",
-      "kavlan-6": "2001:660:4406:792:1:1::48",
-      "kavlan-7": "2001:660:4406:793:1:1::48",
-      "kavlan-8": "2001:660:4406:794:1:1::48",
-      "kavlan-9": "2001:660:4406:795:1:1::48"
+      "kavlan-1": "2001:660:4406:780:1:1:0:48",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:48",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:48",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:48",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:48",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:48",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:48",
+      "kavlan-2": "2001:660:4406:781:1:1:0:48",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:48",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:48",
+      "kavlan-3": "2001:660:4406:782:1:1:0:48",
+      "kavlan-4": "2001:660:4406:790:1:1:0:48",
+      "kavlan-5": "2001:660:4406:791:1:1:0:48",
+      "kavlan-6": "2001:660:4406:792:1:1:0:48",
+      "kavlan-7": "2001:660:4406:793:1:1:0:48",
+      "kavlan-8": "2001:660:4406:794:1:1:0:48",
+      "kavlan-9": "2001:660:4406:795:1:1:0:48"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.72",
-      "ip6": "2001:660:4406:700:1:0::48",
+      "ip6": "2001:660:4406:700:1::48",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:d8",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.172",
-      "ip6": "2001:660:4406:700:1:1::48",
+      "ip6": "2001:660:4406:700:1:1:0:48",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:da",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-8.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-8.json
index 54688730ba98c43b8306b82db6c2df2d3dbbe303..92a56e453f481a683121de234b11eddfb9ac4c6b 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-8.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-8.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::8",
-      "kavlan-11": "2001:660:4406:1a0:701:0::8",
-      "kavlan-12": "2001:660:4406:2a0:701:0::8",
-      "kavlan-13": "2001:660:4406:4a0:701:0::8",
-      "kavlan-14": "2001:660:4406:5a0:701:0::8",
-      "kavlan-16": "2001:660:4406:7a0:701:0::8",
-      "kavlan-18": "2001:660:4406:8a0:701:0::8",
-      "kavlan-2": "2001:660:4406:781:1:0::8",
-      "kavlan-20": "2001:660:4406:3a0:701:0::8",
-      "kavlan-21": "2001:660:4406:6a0:701:0::8",
-      "kavlan-3": "2001:660:4406:782:1:0::8",
-      "kavlan-4": "2001:660:4406:790:1:0::8",
-      "kavlan-5": "2001:660:4406:791:1:0::8",
-      "kavlan-6": "2001:660:4406:792:1:0::8",
-      "kavlan-7": "2001:660:4406:793:1:0::8",
-      "kavlan-8": "2001:660:4406:794:1:0::8",
-      "kavlan-9": "2001:660:4406:795:1:0::8"
+      "kavlan-1": "2001:660:4406:780:1::8",
+      "kavlan-11": "2001:660:4406:1a0:701::8",
+      "kavlan-12": "2001:660:4406:2a0:701::8",
+      "kavlan-13": "2001:660:4406:4a0:701::8",
+      "kavlan-14": "2001:660:4406:5a0:701::8",
+      "kavlan-16": "2001:660:4406:7a0:701::8",
+      "kavlan-18": "2001:660:4406:8a0:701::8",
+      "kavlan-2": "2001:660:4406:781:1::8",
+      "kavlan-20": "2001:660:4406:3a0:701::8",
+      "kavlan-21": "2001:660:4406:6a0:701::8",
+      "kavlan-3": "2001:660:4406:782:1::8",
+      "kavlan-4": "2001:660:4406:790:1::8",
+      "kavlan-5": "2001:660:4406:791:1::8",
+      "kavlan-6": "2001:660:4406:792:1::8",
+      "kavlan-7": "2001:660:4406:793:1::8",
+      "kavlan-8": "2001:660:4406:794:1::8",
+      "kavlan-9": "2001:660:4406:795:1::8"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::8",
-      "kavlan-11": "2001:660:4406:1a0:701:1::8",
-      "kavlan-12": "2001:660:4406:2a0:701:1::8",
-      "kavlan-13": "2001:660:4406:4a0:701:1::8",
-      "kavlan-14": "2001:660:4406:5a0:701:1::8",
-      "kavlan-16": "2001:660:4406:7a0:701:1::8",
-      "kavlan-18": "2001:660:4406:8a0:701:1::8",
-      "kavlan-2": "2001:660:4406:781:1:1::8",
-      "kavlan-20": "2001:660:4406:3a0:701:1::8",
-      "kavlan-21": "2001:660:4406:6a0:701:1::8",
-      "kavlan-3": "2001:660:4406:782:1:1::8",
-      "kavlan-4": "2001:660:4406:790:1:1::8",
-      "kavlan-5": "2001:660:4406:791:1:1::8",
-      "kavlan-6": "2001:660:4406:792:1:1::8",
-      "kavlan-7": "2001:660:4406:793:1:1::8",
-      "kavlan-8": "2001:660:4406:794:1:1::8",
-      "kavlan-9": "2001:660:4406:795:1:1::8"
+      "kavlan-1": "2001:660:4406:780:1:1:0:8",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:8",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:8",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:8",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:8",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:8",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:8",
+      "kavlan-2": "2001:660:4406:781:1:1:0:8",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:8",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:8",
+      "kavlan-3": "2001:660:4406:782:1:1:0:8",
+      "kavlan-4": "2001:660:4406:790:1:1:0:8",
+      "kavlan-5": "2001:660:4406:791:1:1:0:8",
+      "kavlan-6": "2001:660:4406:792:1:1:0:8",
+      "kavlan-7": "2001:660:4406:793:1:1:0:8",
+      "kavlan-8": "2001:660:4406:794:1:1:0:8",
+      "kavlan-9": "2001:660:4406:795:1:1:0:8"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.8",
-      "ip6": "2001:660:4406:700:1:0::8",
+      "ip6": "2001:660:4406:700:1::8",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:80",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.108",
-      "ip6": "2001:660:4406:700:1:1::8",
+      "ip6": "2001:660:4406:700:1:1:0:8",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:82",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-9.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-9.json
index 86eb9f5815f16cee0c430cad47e0f7b28fa9e69e..e23c8b27834552ecb2ce2830cab2d4c7fec35515 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-9.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-9.json
@@ -60,42 +60,42 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1:0::9",
-      "kavlan-11": "2001:660:4406:1a0:701:0::9",
-      "kavlan-12": "2001:660:4406:2a0:701:0::9",
-      "kavlan-13": "2001:660:4406:4a0:701:0::9",
-      "kavlan-14": "2001:660:4406:5a0:701:0::9",
-      "kavlan-16": "2001:660:4406:7a0:701:0::9",
-      "kavlan-18": "2001:660:4406:8a0:701:0::9",
-      "kavlan-2": "2001:660:4406:781:1:0::9",
-      "kavlan-20": "2001:660:4406:3a0:701:0::9",
-      "kavlan-21": "2001:660:4406:6a0:701:0::9",
-      "kavlan-3": "2001:660:4406:782:1:0::9",
-      "kavlan-4": "2001:660:4406:790:1:0::9",
-      "kavlan-5": "2001:660:4406:791:1:0::9",
-      "kavlan-6": "2001:660:4406:792:1:0::9",
-      "kavlan-7": "2001:660:4406:793:1:0::9",
-      "kavlan-8": "2001:660:4406:794:1:0::9",
-      "kavlan-9": "2001:660:4406:795:1:0::9"
+      "kavlan-1": "2001:660:4406:780:1::9",
+      "kavlan-11": "2001:660:4406:1a0:701::9",
+      "kavlan-12": "2001:660:4406:2a0:701::9",
+      "kavlan-13": "2001:660:4406:4a0:701::9",
+      "kavlan-14": "2001:660:4406:5a0:701::9",
+      "kavlan-16": "2001:660:4406:7a0:701::9",
+      "kavlan-18": "2001:660:4406:8a0:701::9",
+      "kavlan-2": "2001:660:4406:781:1::9",
+      "kavlan-20": "2001:660:4406:3a0:701::9",
+      "kavlan-21": "2001:660:4406:6a0:701::9",
+      "kavlan-3": "2001:660:4406:782:1::9",
+      "kavlan-4": "2001:660:4406:790:1::9",
+      "kavlan-5": "2001:660:4406:791:1::9",
+      "kavlan-6": "2001:660:4406:792:1::9",
+      "kavlan-7": "2001:660:4406:793:1::9",
+      "kavlan-8": "2001:660:4406:794:1::9",
+      "kavlan-9": "2001:660:4406:795:1::9"
     },
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:1:1::9",
-      "kavlan-11": "2001:660:4406:1a0:701:1::9",
-      "kavlan-12": "2001:660:4406:2a0:701:1::9",
-      "kavlan-13": "2001:660:4406:4a0:701:1::9",
-      "kavlan-14": "2001:660:4406:5a0:701:1::9",
-      "kavlan-16": "2001:660:4406:7a0:701:1::9",
-      "kavlan-18": "2001:660:4406:8a0:701:1::9",
-      "kavlan-2": "2001:660:4406:781:1:1::9",
-      "kavlan-20": "2001:660:4406:3a0:701:1::9",
-      "kavlan-21": "2001:660:4406:6a0:701:1::9",
-      "kavlan-3": "2001:660:4406:782:1:1::9",
-      "kavlan-4": "2001:660:4406:790:1:1::9",
-      "kavlan-5": "2001:660:4406:791:1:1::9",
-      "kavlan-6": "2001:660:4406:792:1:1::9",
-      "kavlan-7": "2001:660:4406:793:1:1::9",
-      "kavlan-8": "2001:660:4406:794:1:1::9",
-      "kavlan-9": "2001:660:4406:795:1:1::9"
+      "kavlan-1": "2001:660:4406:780:1:1:0:9",
+      "kavlan-11": "2001:660:4406:1a0:701:1:0:9",
+      "kavlan-12": "2001:660:4406:2a0:701:1:0:9",
+      "kavlan-13": "2001:660:4406:4a0:701:1:0:9",
+      "kavlan-14": "2001:660:4406:5a0:701:1:0:9",
+      "kavlan-16": "2001:660:4406:7a0:701:1:0:9",
+      "kavlan-18": "2001:660:4406:8a0:701:1:0:9",
+      "kavlan-2": "2001:660:4406:781:1:1:0:9",
+      "kavlan-20": "2001:660:4406:3a0:701:1:0:9",
+      "kavlan-21": "2001:660:4406:6a0:701:1:0:9",
+      "kavlan-3": "2001:660:4406:782:1:1:0:9",
+      "kavlan-4": "2001:660:4406:790:1:1:0:9",
+      "kavlan-5": "2001:660:4406:791:1:1:0:9",
+      "kavlan-6": "2001:660:4406:792:1:1:0:9",
+      "kavlan-7": "2001:660:4406:793:1:1:0:9",
+      "kavlan-8": "2001:660:4406:794:1:1:0:9",
+      "kavlan-9": "2001:660:4406:795:1:1:0:9"
     }
   },
   "main_memory": {
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.9",
-      "ip6": "2001:660:4406:700:1:0::9",
+      "ip6": "2001:660:4406:700:1::9",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f2:28",
       "management": false,
@@ -135,7 +135,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.109",
-      "ip6": "2001:660:4406:700:1:1::9",
+      "ip6": "2001:660:4406:700:1:1:0:9",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f2:2a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/rennes.json b/data/grid5000/sites/rennes/rennes.json
index 30ba2dc1bcda93650140a30151e2bb5fc71f294d..2cfd346d62ddec17a17995c9f2230744f9b7dfce 100644
--- a/data/grid5000/sites/rennes/rennes.json
+++ b/data/grid5000/sites/rennes/rennes.json
@@ -8,7 +8,7 @@
     "network": "10.156.0.0/14"
   },
   "ipv6": {
-    "prefix": "2001:660:4406:07",
+    "prefix": "2001:660:4406:700::/56",
     "site_global_kavlan": 16,
     "site_index": 7
   },
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-1.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-1.json
index 9024c67e7952621692bdd0f708a89961e1e35e73..b92b8e67262fc3ee9faf646ef33e46561dc2ba53 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-1.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::1",
-      "kavlan-11": "2001:660:4406:1a0:805:0::1",
-      "kavlan-12": "2001:660:4406:2a0:805:0::1",
-      "kavlan-13": "2001:660:4406:4a0:805:0::1",
-      "kavlan-14": "2001:660:4406:5a0:805:0::1",
-      "kavlan-16": "2001:660:4406:7a0:805:0::1",
-      "kavlan-18": "2001:660:4406:8a0:805:0::1",
-      "kavlan-2": "2001:660:4406:881:5:0::1",
-      "kavlan-20": "2001:660:4406:3a0:805:0::1",
-      "kavlan-21": "2001:660:4406:6a0:805:0::1",
-      "kavlan-3": "2001:660:4406:882:5:0::1",
-      "kavlan-4": "2001:660:4406:890:5:0::1",
-      "kavlan-5": "2001:660:4406:891:5:0::1",
-      "kavlan-6": "2001:660:4406:892:5:0::1",
-      "kavlan-7": "2001:660:4406:893:5:0::1",
-      "kavlan-8": "2001:660:4406:894:5:0::1",
-      "kavlan-9": "2001:660:4406:895:5:0::1"
+      "kavlan-1": "2001:660:4406:880:5::1",
+      "kavlan-11": "2001:660:4406:1a0:805::1",
+      "kavlan-12": "2001:660:4406:2a0:805::1",
+      "kavlan-13": "2001:660:4406:4a0:805::1",
+      "kavlan-14": "2001:660:4406:5a0:805::1",
+      "kavlan-16": "2001:660:4406:7a0:805::1",
+      "kavlan-18": "2001:660:4406:8a0:805::1",
+      "kavlan-2": "2001:660:4406:881:5::1",
+      "kavlan-20": "2001:660:4406:3a0:805::1",
+      "kavlan-21": "2001:660:4406:6a0:805::1",
+      "kavlan-3": "2001:660:4406:882:5::1",
+      "kavlan-4": "2001:660:4406:890:5::1",
+      "kavlan-5": "2001:660:4406:891:5::1",
+      "kavlan-6": "2001:660:4406:892:5::1",
+      "kavlan-7": "2001:660:4406:893:5::1",
+      "kavlan-8": "2001:660:4406:894:5::1",
+      "kavlan-9": "2001:660:4406:895:5::1"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.1",
-      "ip6": "2001:660:4406:800:5:0::1",
+      "ip6": "2001:660:4406:800:5::1",
       "kavlan": true,
       "mac": "00:26:6c:f8:38:b8",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-10.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-10.json
index 96524840d06bde9bc708905259031b2c95c113c5..a12c1ae9cc21813b9240ed319cdbf724d2b28d46 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-10.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::a",
-      "kavlan-11": "2001:660:4406:1a0:805:0::a",
-      "kavlan-12": "2001:660:4406:2a0:805:0::a",
-      "kavlan-13": "2001:660:4406:4a0:805:0::a",
-      "kavlan-14": "2001:660:4406:5a0:805:0::a",
-      "kavlan-16": "2001:660:4406:7a0:805:0::a",
-      "kavlan-18": "2001:660:4406:8a0:805:0::a",
-      "kavlan-2": "2001:660:4406:881:5:0::a",
-      "kavlan-20": "2001:660:4406:3a0:805:0::a",
-      "kavlan-21": "2001:660:4406:6a0:805:0::a",
-      "kavlan-3": "2001:660:4406:882:5:0::a",
-      "kavlan-4": "2001:660:4406:890:5:0::a",
-      "kavlan-5": "2001:660:4406:891:5:0::a",
-      "kavlan-6": "2001:660:4406:892:5:0::a",
-      "kavlan-7": "2001:660:4406:893:5:0::a",
-      "kavlan-8": "2001:660:4406:894:5:0::a",
-      "kavlan-9": "2001:660:4406:895:5:0::a"
+      "kavlan-1": "2001:660:4406:880:5::a",
+      "kavlan-11": "2001:660:4406:1a0:805::a",
+      "kavlan-12": "2001:660:4406:2a0:805::a",
+      "kavlan-13": "2001:660:4406:4a0:805::a",
+      "kavlan-14": "2001:660:4406:5a0:805::a",
+      "kavlan-16": "2001:660:4406:7a0:805::a",
+      "kavlan-18": "2001:660:4406:8a0:805::a",
+      "kavlan-2": "2001:660:4406:881:5::a",
+      "kavlan-20": "2001:660:4406:3a0:805::a",
+      "kavlan-21": "2001:660:4406:6a0:805::a",
+      "kavlan-3": "2001:660:4406:882:5::a",
+      "kavlan-4": "2001:660:4406:890:5::a",
+      "kavlan-5": "2001:660:4406:891:5::a",
+      "kavlan-6": "2001:660:4406:892:5::a",
+      "kavlan-7": "2001:660:4406:893:5::a",
+      "kavlan-8": "2001:660:4406:894:5::a",
+      "kavlan-9": "2001:660:4406:895:5::a"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.10",
-      "ip6": "2001:660:4406:800:5:0::a",
+      "ip6": "2001:660:4406:800:5::a",
       "kavlan": true,
       "mac": "00:26:6c:f8:3e:e8",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-11.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-11.json
index 141ce67ec1da87890df42ef72baaad60d933e0cc..986f31d68673e8fe8278038ea6c430916ec169b5 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-11.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::b",
-      "kavlan-11": "2001:660:4406:1a0:805:0::b",
-      "kavlan-12": "2001:660:4406:2a0:805:0::b",
-      "kavlan-13": "2001:660:4406:4a0:805:0::b",
-      "kavlan-14": "2001:660:4406:5a0:805:0::b",
-      "kavlan-16": "2001:660:4406:7a0:805:0::b",
-      "kavlan-18": "2001:660:4406:8a0:805:0::b",
-      "kavlan-2": "2001:660:4406:881:5:0::b",
-      "kavlan-20": "2001:660:4406:3a0:805:0::b",
-      "kavlan-21": "2001:660:4406:6a0:805:0::b",
-      "kavlan-3": "2001:660:4406:882:5:0::b",
-      "kavlan-4": "2001:660:4406:890:5:0::b",
-      "kavlan-5": "2001:660:4406:891:5:0::b",
-      "kavlan-6": "2001:660:4406:892:5:0::b",
-      "kavlan-7": "2001:660:4406:893:5:0::b",
-      "kavlan-8": "2001:660:4406:894:5:0::b",
-      "kavlan-9": "2001:660:4406:895:5:0::b"
+      "kavlan-1": "2001:660:4406:880:5::b",
+      "kavlan-11": "2001:660:4406:1a0:805::b",
+      "kavlan-12": "2001:660:4406:2a0:805::b",
+      "kavlan-13": "2001:660:4406:4a0:805::b",
+      "kavlan-14": "2001:660:4406:5a0:805::b",
+      "kavlan-16": "2001:660:4406:7a0:805::b",
+      "kavlan-18": "2001:660:4406:8a0:805::b",
+      "kavlan-2": "2001:660:4406:881:5::b",
+      "kavlan-20": "2001:660:4406:3a0:805::b",
+      "kavlan-21": "2001:660:4406:6a0:805::b",
+      "kavlan-3": "2001:660:4406:882:5::b",
+      "kavlan-4": "2001:660:4406:890:5::b",
+      "kavlan-5": "2001:660:4406:891:5::b",
+      "kavlan-6": "2001:660:4406:892:5::b",
+      "kavlan-7": "2001:660:4406:893:5::b",
+      "kavlan-8": "2001:660:4406:894:5::b",
+      "kavlan-9": "2001:660:4406:895:5::b"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.11",
-      "ip6": "2001:660:4406:800:5:0::b",
+      "ip6": "2001:660:4406:800:5::b",
       "kavlan": true,
       "mac": "00:26:6c:f8:33:28",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-12.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-12.json
index 133bda622cd2a944a8f65082a372f116f4b6a284..d6ae6bb839293ac60cb1fcd7ebe23cc8c1d8a7f4 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-12.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::c",
-      "kavlan-11": "2001:660:4406:1a0:805:0::c",
-      "kavlan-12": "2001:660:4406:2a0:805:0::c",
-      "kavlan-13": "2001:660:4406:4a0:805:0::c",
-      "kavlan-14": "2001:660:4406:5a0:805:0::c",
-      "kavlan-16": "2001:660:4406:7a0:805:0::c",
-      "kavlan-18": "2001:660:4406:8a0:805:0::c",
-      "kavlan-2": "2001:660:4406:881:5:0::c",
-      "kavlan-20": "2001:660:4406:3a0:805:0::c",
-      "kavlan-21": "2001:660:4406:6a0:805:0::c",
-      "kavlan-3": "2001:660:4406:882:5:0::c",
-      "kavlan-4": "2001:660:4406:890:5:0::c",
-      "kavlan-5": "2001:660:4406:891:5:0::c",
-      "kavlan-6": "2001:660:4406:892:5:0::c",
-      "kavlan-7": "2001:660:4406:893:5:0::c",
-      "kavlan-8": "2001:660:4406:894:5:0::c",
-      "kavlan-9": "2001:660:4406:895:5:0::c"
+      "kavlan-1": "2001:660:4406:880:5::c",
+      "kavlan-11": "2001:660:4406:1a0:805::c",
+      "kavlan-12": "2001:660:4406:2a0:805::c",
+      "kavlan-13": "2001:660:4406:4a0:805::c",
+      "kavlan-14": "2001:660:4406:5a0:805::c",
+      "kavlan-16": "2001:660:4406:7a0:805::c",
+      "kavlan-18": "2001:660:4406:8a0:805::c",
+      "kavlan-2": "2001:660:4406:881:5::c",
+      "kavlan-20": "2001:660:4406:3a0:805::c",
+      "kavlan-21": "2001:660:4406:6a0:805::c",
+      "kavlan-3": "2001:660:4406:882:5::c",
+      "kavlan-4": "2001:660:4406:890:5::c",
+      "kavlan-5": "2001:660:4406:891:5::c",
+      "kavlan-6": "2001:660:4406:892:5::c",
+      "kavlan-7": "2001:660:4406:893:5::c",
+      "kavlan-8": "2001:660:4406:894:5::c",
+      "kavlan-9": "2001:660:4406:895:5::c"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.12",
-      "ip6": "2001:660:4406:800:5:0::c",
+      "ip6": "2001:660:4406:800:5::c",
       "kavlan": true,
       "mac": "00:26:6c:f8:3c:d0",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-14.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-14.json
index e2f13484378fb684ceffa5af364b92846b3baea7..074be6df9e42dde1ab05997313b9dde4abf1f452 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-14.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::e",
-      "kavlan-11": "2001:660:4406:1a0:805:0::e",
-      "kavlan-12": "2001:660:4406:2a0:805:0::e",
-      "kavlan-13": "2001:660:4406:4a0:805:0::e",
-      "kavlan-14": "2001:660:4406:5a0:805:0::e",
-      "kavlan-16": "2001:660:4406:7a0:805:0::e",
-      "kavlan-18": "2001:660:4406:8a0:805:0::e",
-      "kavlan-2": "2001:660:4406:881:5:0::e",
-      "kavlan-20": "2001:660:4406:3a0:805:0::e",
-      "kavlan-21": "2001:660:4406:6a0:805:0::e",
-      "kavlan-3": "2001:660:4406:882:5:0::e",
-      "kavlan-4": "2001:660:4406:890:5:0::e",
-      "kavlan-5": "2001:660:4406:891:5:0::e",
-      "kavlan-6": "2001:660:4406:892:5:0::e",
-      "kavlan-7": "2001:660:4406:893:5:0::e",
-      "kavlan-8": "2001:660:4406:894:5:0::e",
-      "kavlan-9": "2001:660:4406:895:5:0::e"
+      "kavlan-1": "2001:660:4406:880:5::e",
+      "kavlan-11": "2001:660:4406:1a0:805::e",
+      "kavlan-12": "2001:660:4406:2a0:805::e",
+      "kavlan-13": "2001:660:4406:4a0:805::e",
+      "kavlan-14": "2001:660:4406:5a0:805::e",
+      "kavlan-16": "2001:660:4406:7a0:805::e",
+      "kavlan-18": "2001:660:4406:8a0:805::e",
+      "kavlan-2": "2001:660:4406:881:5::e",
+      "kavlan-20": "2001:660:4406:3a0:805::e",
+      "kavlan-21": "2001:660:4406:6a0:805::e",
+      "kavlan-3": "2001:660:4406:882:5::e",
+      "kavlan-4": "2001:660:4406:890:5::e",
+      "kavlan-5": "2001:660:4406:891:5::e",
+      "kavlan-6": "2001:660:4406:892:5::e",
+      "kavlan-7": "2001:660:4406:893:5::e",
+      "kavlan-8": "2001:660:4406:894:5::e",
+      "kavlan-9": "2001:660:4406:895:5::e"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.14",
-      "ip6": "2001:660:4406:800:5:0::e",
+      "ip6": "2001:660:4406:800:5::e",
       "kavlan": true,
       "mac": "00:26:6c:f8:5d:6c",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-15.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-15.json
index 2c9ffefd4f3438e00f52d3de800fd8a27912a27b..29d52f8a9f23b1c41744a8545fff39860bbcb1a5 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-15.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::f",
-      "kavlan-11": "2001:660:4406:1a0:805:0::f",
-      "kavlan-12": "2001:660:4406:2a0:805:0::f",
-      "kavlan-13": "2001:660:4406:4a0:805:0::f",
-      "kavlan-14": "2001:660:4406:5a0:805:0::f",
-      "kavlan-16": "2001:660:4406:7a0:805:0::f",
-      "kavlan-18": "2001:660:4406:8a0:805:0::f",
-      "kavlan-2": "2001:660:4406:881:5:0::f",
-      "kavlan-20": "2001:660:4406:3a0:805:0::f",
-      "kavlan-21": "2001:660:4406:6a0:805:0::f",
-      "kavlan-3": "2001:660:4406:882:5:0::f",
-      "kavlan-4": "2001:660:4406:890:5:0::f",
-      "kavlan-5": "2001:660:4406:891:5:0::f",
-      "kavlan-6": "2001:660:4406:892:5:0::f",
-      "kavlan-7": "2001:660:4406:893:5:0::f",
-      "kavlan-8": "2001:660:4406:894:5:0::f",
-      "kavlan-9": "2001:660:4406:895:5:0::f"
+      "kavlan-1": "2001:660:4406:880:5::f",
+      "kavlan-11": "2001:660:4406:1a0:805::f",
+      "kavlan-12": "2001:660:4406:2a0:805::f",
+      "kavlan-13": "2001:660:4406:4a0:805::f",
+      "kavlan-14": "2001:660:4406:5a0:805::f",
+      "kavlan-16": "2001:660:4406:7a0:805::f",
+      "kavlan-18": "2001:660:4406:8a0:805::f",
+      "kavlan-2": "2001:660:4406:881:5::f",
+      "kavlan-20": "2001:660:4406:3a0:805::f",
+      "kavlan-21": "2001:660:4406:6a0:805::f",
+      "kavlan-3": "2001:660:4406:882:5::f",
+      "kavlan-4": "2001:660:4406:890:5::f",
+      "kavlan-5": "2001:660:4406:891:5::f",
+      "kavlan-6": "2001:660:4406:892:5::f",
+      "kavlan-7": "2001:660:4406:893:5::f",
+      "kavlan-8": "2001:660:4406:894:5::f",
+      "kavlan-9": "2001:660:4406:895:5::f"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.15",
-      "ip6": "2001:660:4406:800:5:0::f",
+      "ip6": "2001:660:4406:800:5::f",
       "kavlan": true,
       "mac": "00:26:6c:f8:2d:78",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-16.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-16.json
index ef5dccd482cd272f7afca05a138ea2a373acae5b..f9302e78b2fa0ff4bf851cdad5d5193f1d8c6c0e 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-16.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::10",
-      "kavlan-11": "2001:660:4406:1a0:805:0::10",
-      "kavlan-12": "2001:660:4406:2a0:805:0::10",
-      "kavlan-13": "2001:660:4406:4a0:805:0::10",
-      "kavlan-14": "2001:660:4406:5a0:805:0::10",
-      "kavlan-16": "2001:660:4406:7a0:805:0::10",
-      "kavlan-18": "2001:660:4406:8a0:805:0::10",
-      "kavlan-2": "2001:660:4406:881:5:0::10",
-      "kavlan-20": "2001:660:4406:3a0:805:0::10",
-      "kavlan-21": "2001:660:4406:6a0:805:0::10",
-      "kavlan-3": "2001:660:4406:882:5:0::10",
-      "kavlan-4": "2001:660:4406:890:5:0::10",
-      "kavlan-5": "2001:660:4406:891:5:0::10",
-      "kavlan-6": "2001:660:4406:892:5:0::10",
-      "kavlan-7": "2001:660:4406:893:5:0::10",
-      "kavlan-8": "2001:660:4406:894:5:0::10",
-      "kavlan-9": "2001:660:4406:895:5:0::10"
+      "kavlan-1": "2001:660:4406:880:5::10",
+      "kavlan-11": "2001:660:4406:1a0:805::10",
+      "kavlan-12": "2001:660:4406:2a0:805::10",
+      "kavlan-13": "2001:660:4406:4a0:805::10",
+      "kavlan-14": "2001:660:4406:5a0:805::10",
+      "kavlan-16": "2001:660:4406:7a0:805::10",
+      "kavlan-18": "2001:660:4406:8a0:805::10",
+      "kavlan-2": "2001:660:4406:881:5::10",
+      "kavlan-20": "2001:660:4406:3a0:805::10",
+      "kavlan-21": "2001:660:4406:6a0:805::10",
+      "kavlan-3": "2001:660:4406:882:5::10",
+      "kavlan-4": "2001:660:4406:890:5::10",
+      "kavlan-5": "2001:660:4406:891:5::10",
+      "kavlan-6": "2001:660:4406:892:5::10",
+      "kavlan-7": "2001:660:4406:893:5::10",
+      "kavlan-8": "2001:660:4406:894:5::10",
+      "kavlan-9": "2001:660:4406:895:5::10"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.16",
-      "ip6": "2001:660:4406:800:5:0::10",
+      "ip6": "2001:660:4406:800:5::10",
       "kavlan": true,
       "mac": "00:26:6c:f8:2f:c4",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-17.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-17.json
index ba5233ac777ed122cb1e60f1f357c9bac24997ea..7447346f93fdb7d1b32e97576b463271dfe3beeb 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-17.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-17.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::11",
-      "kavlan-11": "2001:660:4406:1a0:805:0::11",
-      "kavlan-12": "2001:660:4406:2a0:805:0::11",
-      "kavlan-13": "2001:660:4406:4a0:805:0::11",
-      "kavlan-14": "2001:660:4406:5a0:805:0::11",
-      "kavlan-16": "2001:660:4406:7a0:805:0::11",
-      "kavlan-18": "2001:660:4406:8a0:805:0::11",
-      "kavlan-2": "2001:660:4406:881:5:0::11",
-      "kavlan-20": "2001:660:4406:3a0:805:0::11",
-      "kavlan-21": "2001:660:4406:6a0:805:0::11",
-      "kavlan-3": "2001:660:4406:882:5:0::11",
-      "kavlan-4": "2001:660:4406:890:5:0::11",
-      "kavlan-5": "2001:660:4406:891:5:0::11",
-      "kavlan-6": "2001:660:4406:892:5:0::11",
-      "kavlan-7": "2001:660:4406:893:5:0::11",
-      "kavlan-8": "2001:660:4406:894:5:0::11",
-      "kavlan-9": "2001:660:4406:895:5:0::11"
+      "kavlan-1": "2001:660:4406:880:5::11",
+      "kavlan-11": "2001:660:4406:1a0:805::11",
+      "kavlan-12": "2001:660:4406:2a0:805::11",
+      "kavlan-13": "2001:660:4406:4a0:805::11",
+      "kavlan-14": "2001:660:4406:5a0:805::11",
+      "kavlan-16": "2001:660:4406:7a0:805::11",
+      "kavlan-18": "2001:660:4406:8a0:805::11",
+      "kavlan-2": "2001:660:4406:881:5::11",
+      "kavlan-20": "2001:660:4406:3a0:805::11",
+      "kavlan-21": "2001:660:4406:6a0:805::11",
+      "kavlan-3": "2001:660:4406:882:5::11",
+      "kavlan-4": "2001:660:4406:890:5::11",
+      "kavlan-5": "2001:660:4406:891:5::11",
+      "kavlan-6": "2001:660:4406:892:5::11",
+      "kavlan-7": "2001:660:4406:893:5::11",
+      "kavlan-8": "2001:660:4406:894:5::11",
+      "kavlan-9": "2001:660:4406:895:5::11"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.17",
-      "ip6": "2001:660:4406:800:5:0::11",
+      "ip6": "2001:660:4406:800:5::11",
       "kavlan": true,
       "mac": "00:26:6c:f8:31:d4",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-18.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-18.json
index 47c2acb0cad9958b2fc755954da4f46ed9b1ecfb..caf129ca95eff8cd0af93c64eb253b3003e3dc13 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-18.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-18.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::12",
-      "kavlan-11": "2001:660:4406:1a0:805:0::12",
-      "kavlan-12": "2001:660:4406:2a0:805:0::12",
-      "kavlan-13": "2001:660:4406:4a0:805:0::12",
-      "kavlan-14": "2001:660:4406:5a0:805:0::12",
-      "kavlan-16": "2001:660:4406:7a0:805:0::12",
-      "kavlan-18": "2001:660:4406:8a0:805:0::12",
-      "kavlan-2": "2001:660:4406:881:5:0::12",
-      "kavlan-20": "2001:660:4406:3a0:805:0::12",
-      "kavlan-21": "2001:660:4406:6a0:805:0::12",
-      "kavlan-3": "2001:660:4406:882:5:0::12",
-      "kavlan-4": "2001:660:4406:890:5:0::12",
-      "kavlan-5": "2001:660:4406:891:5:0::12",
-      "kavlan-6": "2001:660:4406:892:5:0::12",
-      "kavlan-7": "2001:660:4406:893:5:0::12",
-      "kavlan-8": "2001:660:4406:894:5:0::12",
-      "kavlan-9": "2001:660:4406:895:5:0::12"
+      "kavlan-1": "2001:660:4406:880:5::12",
+      "kavlan-11": "2001:660:4406:1a0:805::12",
+      "kavlan-12": "2001:660:4406:2a0:805::12",
+      "kavlan-13": "2001:660:4406:4a0:805::12",
+      "kavlan-14": "2001:660:4406:5a0:805::12",
+      "kavlan-16": "2001:660:4406:7a0:805::12",
+      "kavlan-18": "2001:660:4406:8a0:805::12",
+      "kavlan-2": "2001:660:4406:881:5::12",
+      "kavlan-20": "2001:660:4406:3a0:805::12",
+      "kavlan-21": "2001:660:4406:6a0:805::12",
+      "kavlan-3": "2001:660:4406:882:5::12",
+      "kavlan-4": "2001:660:4406:890:5::12",
+      "kavlan-5": "2001:660:4406:891:5::12",
+      "kavlan-6": "2001:660:4406:892:5::12",
+      "kavlan-7": "2001:660:4406:893:5::12",
+      "kavlan-8": "2001:660:4406:894:5::12",
+      "kavlan-9": "2001:660:4406:895:5::12"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.18",
-      "ip6": "2001:660:4406:800:5:0::12",
+      "ip6": "2001:660:4406:800:5::12",
       "kavlan": true,
       "mac": "00:26:6c:f8:3e:64",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-19.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-19.json
index b6f9074240abd10e74934cf708637d94034bb757..812b6a987c5d95aa03f691bcce243cb1735cd540 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-19.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-19.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::13",
-      "kavlan-11": "2001:660:4406:1a0:805:0::13",
-      "kavlan-12": "2001:660:4406:2a0:805:0::13",
-      "kavlan-13": "2001:660:4406:4a0:805:0::13",
-      "kavlan-14": "2001:660:4406:5a0:805:0::13",
-      "kavlan-16": "2001:660:4406:7a0:805:0::13",
-      "kavlan-18": "2001:660:4406:8a0:805:0::13",
-      "kavlan-2": "2001:660:4406:881:5:0::13",
-      "kavlan-20": "2001:660:4406:3a0:805:0::13",
-      "kavlan-21": "2001:660:4406:6a0:805:0::13",
-      "kavlan-3": "2001:660:4406:882:5:0::13",
-      "kavlan-4": "2001:660:4406:890:5:0::13",
-      "kavlan-5": "2001:660:4406:891:5:0::13",
-      "kavlan-6": "2001:660:4406:892:5:0::13",
-      "kavlan-7": "2001:660:4406:893:5:0::13",
-      "kavlan-8": "2001:660:4406:894:5:0::13",
-      "kavlan-9": "2001:660:4406:895:5:0::13"
+      "kavlan-1": "2001:660:4406:880:5::13",
+      "kavlan-11": "2001:660:4406:1a0:805::13",
+      "kavlan-12": "2001:660:4406:2a0:805::13",
+      "kavlan-13": "2001:660:4406:4a0:805::13",
+      "kavlan-14": "2001:660:4406:5a0:805::13",
+      "kavlan-16": "2001:660:4406:7a0:805::13",
+      "kavlan-18": "2001:660:4406:8a0:805::13",
+      "kavlan-2": "2001:660:4406:881:5::13",
+      "kavlan-20": "2001:660:4406:3a0:805::13",
+      "kavlan-21": "2001:660:4406:6a0:805::13",
+      "kavlan-3": "2001:660:4406:882:5::13",
+      "kavlan-4": "2001:660:4406:890:5::13",
+      "kavlan-5": "2001:660:4406:891:5::13",
+      "kavlan-6": "2001:660:4406:892:5::13",
+      "kavlan-7": "2001:660:4406:893:5::13",
+      "kavlan-8": "2001:660:4406:894:5::13",
+      "kavlan-9": "2001:660:4406:895:5::13"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.19",
-      "ip6": "2001:660:4406:800:5:0::13",
+      "ip6": "2001:660:4406:800:5::13",
       "kavlan": true,
       "mac": "00:26:6c:f8:36:ec",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-2.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-2.json
index d87f1db4cdd2a300dddcf1b9b196c9ac955f3375..69a581ab2bcc6cc3a111235235efcdc3c5e23ed2 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-2.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::2",
-      "kavlan-11": "2001:660:4406:1a0:805:0::2",
-      "kavlan-12": "2001:660:4406:2a0:805:0::2",
-      "kavlan-13": "2001:660:4406:4a0:805:0::2",
-      "kavlan-14": "2001:660:4406:5a0:805:0::2",
-      "kavlan-16": "2001:660:4406:7a0:805:0::2",
-      "kavlan-18": "2001:660:4406:8a0:805:0::2",
-      "kavlan-2": "2001:660:4406:881:5:0::2",
-      "kavlan-20": "2001:660:4406:3a0:805:0::2",
-      "kavlan-21": "2001:660:4406:6a0:805:0::2",
-      "kavlan-3": "2001:660:4406:882:5:0::2",
-      "kavlan-4": "2001:660:4406:890:5:0::2",
-      "kavlan-5": "2001:660:4406:891:5:0::2",
-      "kavlan-6": "2001:660:4406:892:5:0::2",
-      "kavlan-7": "2001:660:4406:893:5:0::2",
-      "kavlan-8": "2001:660:4406:894:5:0::2",
-      "kavlan-9": "2001:660:4406:895:5:0::2"
+      "kavlan-1": "2001:660:4406:880:5::2",
+      "kavlan-11": "2001:660:4406:1a0:805::2",
+      "kavlan-12": "2001:660:4406:2a0:805::2",
+      "kavlan-13": "2001:660:4406:4a0:805::2",
+      "kavlan-14": "2001:660:4406:5a0:805::2",
+      "kavlan-16": "2001:660:4406:7a0:805::2",
+      "kavlan-18": "2001:660:4406:8a0:805::2",
+      "kavlan-2": "2001:660:4406:881:5::2",
+      "kavlan-20": "2001:660:4406:3a0:805::2",
+      "kavlan-21": "2001:660:4406:6a0:805::2",
+      "kavlan-3": "2001:660:4406:882:5::2",
+      "kavlan-4": "2001:660:4406:890:5::2",
+      "kavlan-5": "2001:660:4406:891:5::2",
+      "kavlan-6": "2001:660:4406:892:5::2",
+      "kavlan-7": "2001:660:4406:893:5::2",
+      "kavlan-8": "2001:660:4406:894:5::2",
+      "kavlan-9": "2001:660:4406:895:5::2"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.2",
-      "ip6": "2001:660:4406:800:5:0::2",
+      "ip6": "2001:660:4406:800:5::2",
       "kavlan": true,
       "mac": "00:26:6c:f8:36:90",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-20.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-20.json
index 6ad262a089639725188b5cf380cdf98d85f047a0..1c4c09ccfabc0771e65bed84fd1efdf3c08e99b0 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-20.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-20.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::14",
-      "kavlan-11": "2001:660:4406:1a0:805:0::14",
-      "kavlan-12": "2001:660:4406:2a0:805:0::14",
-      "kavlan-13": "2001:660:4406:4a0:805:0::14",
-      "kavlan-14": "2001:660:4406:5a0:805:0::14",
-      "kavlan-16": "2001:660:4406:7a0:805:0::14",
-      "kavlan-18": "2001:660:4406:8a0:805:0::14",
-      "kavlan-2": "2001:660:4406:881:5:0::14",
-      "kavlan-20": "2001:660:4406:3a0:805:0::14",
-      "kavlan-21": "2001:660:4406:6a0:805:0::14",
-      "kavlan-3": "2001:660:4406:882:5:0::14",
-      "kavlan-4": "2001:660:4406:890:5:0::14",
-      "kavlan-5": "2001:660:4406:891:5:0::14",
-      "kavlan-6": "2001:660:4406:892:5:0::14",
-      "kavlan-7": "2001:660:4406:893:5:0::14",
-      "kavlan-8": "2001:660:4406:894:5:0::14",
-      "kavlan-9": "2001:660:4406:895:5:0::14"
+      "kavlan-1": "2001:660:4406:880:5::14",
+      "kavlan-11": "2001:660:4406:1a0:805::14",
+      "kavlan-12": "2001:660:4406:2a0:805::14",
+      "kavlan-13": "2001:660:4406:4a0:805::14",
+      "kavlan-14": "2001:660:4406:5a0:805::14",
+      "kavlan-16": "2001:660:4406:7a0:805::14",
+      "kavlan-18": "2001:660:4406:8a0:805::14",
+      "kavlan-2": "2001:660:4406:881:5::14",
+      "kavlan-20": "2001:660:4406:3a0:805::14",
+      "kavlan-21": "2001:660:4406:6a0:805::14",
+      "kavlan-3": "2001:660:4406:882:5::14",
+      "kavlan-4": "2001:660:4406:890:5::14",
+      "kavlan-5": "2001:660:4406:891:5::14",
+      "kavlan-6": "2001:660:4406:892:5::14",
+      "kavlan-7": "2001:660:4406:893:5::14",
+      "kavlan-8": "2001:660:4406:894:5::14",
+      "kavlan-9": "2001:660:4406:895:5::14"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.20",
-      "ip6": "2001:660:4406:800:5:0::14",
+      "ip6": "2001:660:4406:800:5::14",
       "kavlan": true,
       "mac": "00:26:6c:f8:3d:e8",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-21.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-21.json
index 4f9ae0a34a09dc906d54574ea4cdc9d6efa8ab55..c439d52698c0fb109eb4e66eb160f13de6b6d8c6 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-21.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-21.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::15",
-      "kavlan-11": "2001:660:4406:1a0:805:0::15",
-      "kavlan-12": "2001:660:4406:2a0:805:0::15",
-      "kavlan-13": "2001:660:4406:4a0:805:0::15",
-      "kavlan-14": "2001:660:4406:5a0:805:0::15",
-      "kavlan-16": "2001:660:4406:7a0:805:0::15",
-      "kavlan-18": "2001:660:4406:8a0:805:0::15",
-      "kavlan-2": "2001:660:4406:881:5:0::15",
-      "kavlan-20": "2001:660:4406:3a0:805:0::15",
-      "kavlan-21": "2001:660:4406:6a0:805:0::15",
-      "kavlan-3": "2001:660:4406:882:5:0::15",
-      "kavlan-4": "2001:660:4406:890:5:0::15",
-      "kavlan-5": "2001:660:4406:891:5:0::15",
-      "kavlan-6": "2001:660:4406:892:5:0::15",
-      "kavlan-7": "2001:660:4406:893:5:0::15",
-      "kavlan-8": "2001:660:4406:894:5:0::15",
-      "kavlan-9": "2001:660:4406:895:5:0::15"
+      "kavlan-1": "2001:660:4406:880:5::15",
+      "kavlan-11": "2001:660:4406:1a0:805::15",
+      "kavlan-12": "2001:660:4406:2a0:805::15",
+      "kavlan-13": "2001:660:4406:4a0:805::15",
+      "kavlan-14": "2001:660:4406:5a0:805::15",
+      "kavlan-16": "2001:660:4406:7a0:805::15",
+      "kavlan-18": "2001:660:4406:8a0:805::15",
+      "kavlan-2": "2001:660:4406:881:5::15",
+      "kavlan-20": "2001:660:4406:3a0:805::15",
+      "kavlan-21": "2001:660:4406:6a0:805::15",
+      "kavlan-3": "2001:660:4406:882:5::15",
+      "kavlan-4": "2001:660:4406:890:5::15",
+      "kavlan-5": "2001:660:4406:891:5::15",
+      "kavlan-6": "2001:660:4406:892:5::15",
+      "kavlan-7": "2001:660:4406:893:5::15",
+      "kavlan-8": "2001:660:4406:894:5::15",
+      "kavlan-9": "2001:660:4406:895:5::15"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.21",
-      "ip6": "2001:660:4406:800:5:0::15",
+      "ip6": "2001:660:4406:800:5::15",
       "kavlan": true,
       "mac": "00:26:6c:f8:5b:4c",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-22.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-22.json
index 645232f97b1b4a5d0c75ac3c9bbe6f343ef54009..c483ea865af1cd466e4830964973f42fb55106c8 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-22.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-22.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::16",
-      "kavlan-11": "2001:660:4406:1a0:805:0::16",
-      "kavlan-12": "2001:660:4406:2a0:805:0::16",
-      "kavlan-13": "2001:660:4406:4a0:805:0::16",
-      "kavlan-14": "2001:660:4406:5a0:805:0::16",
-      "kavlan-16": "2001:660:4406:7a0:805:0::16",
-      "kavlan-18": "2001:660:4406:8a0:805:0::16",
-      "kavlan-2": "2001:660:4406:881:5:0::16",
-      "kavlan-20": "2001:660:4406:3a0:805:0::16",
-      "kavlan-21": "2001:660:4406:6a0:805:0::16",
-      "kavlan-3": "2001:660:4406:882:5:0::16",
-      "kavlan-4": "2001:660:4406:890:5:0::16",
-      "kavlan-5": "2001:660:4406:891:5:0::16",
-      "kavlan-6": "2001:660:4406:892:5:0::16",
-      "kavlan-7": "2001:660:4406:893:5:0::16",
-      "kavlan-8": "2001:660:4406:894:5:0::16",
-      "kavlan-9": "2001:660:4406:895:5:0::16"
+      "kavlan-1": "2001:660:4406:880:5::16",
+      "kavlan-11": "2001:660:4406:1a0:805::16",
+      "kavlan-12": "2001:660:4406:2a0:805::16",
+      "kavlan-13": "2001:660:4406:4a0:805::16",
+      "kavlan-14": "2001:660:4406:5a0:805::16",
+      "kavlan-16": "2001:660:4406:7a0:805::16",
+      "kavlan-18": "2001:660:4406:8a0:805::16",
+      "kavlan-2": "2001:660:4406:881:5::16",
+      "kavlan-20": "2001:660:4406:3a0:805::16",
+      "kavlan-21": "2001:660:4406:6a0:805::16",
+      "kavlan-3": "2001:660:4406:882:5::16",
+      "kavlan-4": "2001:660:4406:890:5::16",
+      "kavlan-5": "2001:660:4406:891:5::16",
+      "kavlan-6": "2001:660:4406:892:5::16",
+      "kavlan-7": "2001:660:4406:893:5::16",
+      "kavlan-8": "2001:660:4406:894:5::16",
+      "kavlan-9": "2001:660:4406:895:5::16"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.22",
-      "ip6": "2001:660:4406:800:5:0::16",
+      "ip6": "2001:660:4406:800:5::16",
       "kavlan": true,
       "mac": "00:26:6c:f8:31:28",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-23.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-23.json
index 807b35829549b664c09beb45b9646e235dff0bfd..3bce34a5edf9137cdf7ddf60acf08a4b9b15aa1b 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-23.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-23.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::17",
-      "kavlan-11": "2001:660:4406:1a0:805:0::17",
-      "kavlan-12": "2001:660:4406:2a0:805:0::17",
-      "kavlan-13": "2001:660:4406:4a0:805:0::17",
-      "kavlan-14": "2001:660:4406:5a0:805:0::17",
-      "kavlan-16": "2001:660:4406:7a0:805:0::17",
-      "kavlan-18": "2001:660:4406:8a0:805:0::17",
-      "kavlan-2": "2001:660:4406:881:5:0::17",
-      "kavlan-20": "2001:660:4406:3a0:805:0::17",
-      "kavlan-21": "2001:660:4406:6a0:805:0::17",
-      "kavlan-3": "2001:660:4406:882:5:0::17",
-      "kavlan-4": "2001:660:4406:890:5:0::17",
-      "kavlan-5": "2001:660:4406:891:5:0::17",
-      "kavlan-6": "2001:660:4406:892:5:0::17",
-      "kavlan-7": "2001:660:4406:893:5:0::17",
-      "kavlan-8": "2001:660:4406:894:5:0::17",
-      "kavlan-9": "2001:660:4406:895:5:0::17"
+      "kavlan-1": "2001:660:4406:880:5::17",
+      "kavlan-11": "2001:660:4406:1a0:805::17",
+      "kavlan-12": "2001:660:4406:2a0:805::17",
+      "kavlan-13": "2001:660:4406:4a0:805::17",
+      "kavlan-14": "2001:660:4406:5a0:805::17",
+      "kavlan-16": "2001:660:4406:7a0:805::17",
+      "kavlan-18": "2001:660:4406:8a0:805::17",
+      "kavlan-2": "2001:660:4406:881:5::17",
+      "kavlan-20": "2001:660:4406:3a0:805::17",
+      "kavlan-21": "2001:660:4406:6a0:805::17",
+      "kavlan-3": "2001:660:4406:882:5::17",
+      "kavlan-4": "2001:660:4406:890:5::17",
+      "kavlan-5": "2001:660:4406:891:5::17",
+      "kavlan-6": "2001:660:4406:892:5::17",
+      "kavlan-7": "2001:660:4406:893:5::17",
+      "kavlan-8": "2001:660:4406:894:5::17",
+      "kavlan-9": "2001:660:4406:895:5::17"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.23",
-      "ip6": "2001:660:4406:800:5:0::17",
+      "ip6": "2001:660:4406:800:5::17",
       "kavlan": true,
       "mac": "00:26:6c:f8:36:48",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-24.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-24.json
index f77c0abc381ed0df3b855106f05e8a6e20f5284b..582e192d3883314c5add8f04e8100108d350d119 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-24.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-24.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::18",
-      "kavlan-11": "2001:660:4406:1a0:805:0::18",
-      "kavlan-12": "2001:660:4406:2a0:805:0::18",
-      "kavlan-13": "2001:660:4406:4a0:805:0::18",
-      "kavlan-14": "2001:660:4406:5a0:805:0::18",
-      "kavlan-16": "2001:660:4406:7a0:805:0::18",
-      "kavlan-18": "2001:660:4406:8a0:805:0::18",
-      "kavlan-2": "2001:660:4406:881:5:0::18",
-      "kavlan-20": "2001:660:4406:3a0:805:0::18",
-      "kavlan-21": "2001:660:4406:6a0:805:0::18",
-      "kavlan-3": "2001:660:4406:882:5:0::18",
-      "kavlan-4": "2001:660:4406:890:5:0::18",
-      "kavlan-5": "2001:660:4406:891:5:0::18",
-      "kavlan-6": "2001:660:4406:892:5:0::18",
-      "kavlan-7": "2001:660:4406:893:5:0::18",
-      "kavlan-8": "2001:660:4406:894:5:0::18",
-      "kavlan-9": "2001:660:4406:895:5:0::18"
+      "kavlan-1": "2001:660:4406:880:5::18",
+      "kavlan-11": "2001:660:4406:1a0:805::18",
+      "kavlan-12": "2001:660:4406:2a0:805::18",
+      "kavlan-13": "2001:660:4406:4a0:805::18",
+      "kavlan-14": "2001:660:4406:5a0:805::18",
+      "kavlan-16": "2001:660:4406:7a0:805::18",
+      "kavlan-18": "2001:660:4406:8a0:805::18",
+      "kavlan-2": "2001:660:4406:881:5::18",
+      "kavlan-20": "2001:660:4406:3a0:805::18",
+      "kavlan-21": "2001:660:4406:6a0:805::18",
+      "kavlan-3": "2001:660:4406:882:5::18",
+      "kavlan-4": "2001:660:4406:890:5::18",
+      "kavlan-5": "2001:660:4406:891:5::18",
+      "kavlan-6": "2001:660:4406:892:5::18",
+      "kavlan-7": "2001:660:4406:893:5::18",
+      "kavlan-8": "2001:660:4406:894:5::18",
+      "kavlan-9": "2001:660:4406:895:5::18"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.24",
-      "ip6": "2001:660:4406:800:5:0::18",
+      "ip6": "2001:660:4406:800:5::18",
       "kavlan": true,
       "mac": "00:26:6c:f8:2d:14",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-25.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-25.json
index 5057e6988bda853eda60f05dc9be13b5f39ebd52..efb8faf1d87ef3b9bcc36cfdba2f13f0a97f06c4 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-25.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-25.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::19",
-      "kavlan-11": "2001:660:4406:1a0:805:0::19",
-      "kavlan-12": "2001:660:4406:2a0:805:0::19",
-      "kavlan-13": "2001:660:4406:4a0:805:0::19",
-      "kavlan-14": "2001:660:4406:5a0:805:0::19",
-      "kavlan-16": "2001:660:4406:7a0:805:0::19",
-      "kavlan-18": "2001:660:4406:8a0:805:0::19",
-      "kavlan-2": "2001:660:4406:881:5:0::19",
-      "kavlan-20": "2001:660:4406:3a0:805:0::19",
-      "kavlan-21": "2001:660:4406:6a0:805:0::19",
-      "kavlan-3": "2001:660:4406:882:5:0::19",
-      "kavlan-4": "2001:660:4406:890:5:0::19",
-      "kavlan-5": "2001:660:4406:891:5:0::19",
-      "kavlan-6": "2001:660:4406:892:5:0::19",
-      "kavlan-7": "2001:660:4406:893:5:0::19",
-      "kavlan-8": "2001:660:4406:894:5:0::19",
-      "kavlan-9": "2001:660:4406:895:5:0::19"
+      "kavlan-1": "2001:660:4406:880:5::19",
+      "kavlan-11": "2001:660:4406:1a0:805::19",
+      "kavlan-12": "2001:660:4406:2a0:805::19",
+      "kavlan-13": "2001:660:4406:4a0:805::19",
+      "kavlan-14": "2001:660:4406:5a0:805::19",
+      "kavlan-16": "2001:660:4406:7a0:805::19",
+      "kavlan-18": "2001:660:4406:8a0:805::19",
+      "kavlan-2": "2001:660:4406:881:5::19",
+      "kavlan-20": "2001:660:4406:3a0:805::19",
+      "kavlan-21": "2001:660:4406:6a0:805::19",
+      "kavlan-3": "2001:660:4406:882:5::19",
+      "kavlan-4": "2001:660:4406:890:5::19",
+      "kavlan-5": "2001:660:4406:891:5::19",
+      "kavlan-6": "2001:660:4406:892:5::19",
+      "kavlan-7": "2001:660:4406:893:5::19",
+      "kavlan-8": "2001:660:4406:894:5::19",
+      "kavlan-9": "2001:660:4406:895:5::19"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.25",
-      "ip6": "2001:660:4406:800:5:0::19",
+      "ip6": "2001:660:4406:800:5::19",
       "kavlan": true,
       "mac": "00:26:6c:f8:32:88",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-26.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-26.json
index 8de866522d8259e35c31ed2fc2cbdc1256141a48..89e35044947114c1938e5c02bc67b1b9d8f92045 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-26.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-26.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::1a",
-      "kavlan-11": "2001:660:4406:1a0:805:0::1a",
-      "kavlan-12": "2001:660:4406:2a0:805:0::1a",
-      "kavlan-13": "2001:660:4406:4a0:805:0::1a",
-      "kavlan-14": "2001:660:4406:5a0:805:0::1a",
-      "kavlan-16": "2001:660:4406:7a0:805:0::1a",
-      "kavlan-18": "2001:660:4406:8a0:805:0::1a",
-      "kavlan-2": "2001:660:4406:881:5:0::1a",
-      "kavlan-20": "2001:660:4406:3a0:805:0::1a",
-      "kavlan-21": "2001:660:4406:6a0:805:0::1a",
-      "kavlan-3": "2001:660:4406:882:5:0::1a",
-      "kavlan-4": "2001:660:4406:890:5:0::1a",
-      "kavlan-5": "2001:660:4406:891:5:0::1a",
-      "kavlan-6": "2001:660:4406:892:5:0::1a",
-      "kavlan-7": "2001:660:4406:893:5:0::1a",
-      "kavlan-8": "2001:660:4406:894:5:0::1a",
-      "kavlan-9": "2001:660:4406:895:5:0::1a"
+      "kavlan-1": "2001:660:4406:880:5::1a",
+      "kavlan-11": "2001:660:4406:1a0:805::1a",
+      "kavlan-12": "2001:660:4406:2a0:805::1a",
+      "kavlan-13": "2001:660:4406:4a0:805::1a",
+      "kavlan-14": "2001:660:4406:5a0:805::1a",
+      "kavlan-16": "2001:660:4406:7a0:805::1a",
+      "kavlan-18": "2001:660:4406:8a0:805::1a",
+      "kavlan-2": "2001:660:4406:881:5::1a",
+      "kavlan-20": "2001:660:4406:3a0:805::1a",
+      "kavlan-21": "2001:660:4406:6a0:805::1a",
+      "kavlan-3": "2001:660:4406:882:5::1a",
+      "kavlan-4": "2001:660:4406:890:5::1a",
+      "kavlan-5": "2001:660:4406:891:5::1a",
+      "kavlan-6": "2001:660:4406:892:5::1a",
+      "kavlan-7": "2001:660:4406:893:5::1a",
+      "kavlan-8": "2001:660:4406:894:5::1a",
+      "kavlan-9": "2001:660:4406:895:5::1a"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.26",
-      "ip6": "2001:660:4406:800:5:0::1a",
+      "ip6": "2001:660:4406:800:5::1a",
       "kavlan": true,
       "mac": "00:26:6c:f8:35:88",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-27.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-27.json
index f1ee0bf4168143e6308b28723b69cb285c68b0eb..345a8525fa9b154eca7ca70df87a2bee8302d738 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-27.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-27.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::1b",
-      "kavlan-11": "2001:660:4406:1a0:805:0::1b",
-      "kavlan-12": "2001:660:4406:2a0:805:0::1b",
-      "kavlan-13": "2001:660:4406:4a0:805:0::1b",
-      "kavlan-14": "2001:660:4406:5a0:805:0::1b",
-      "kavlan-16": "2001:660:4406:7a0:805:0::1b",
-      "kavlan-18": "2001:660:4406:8a0:805:0::1b",
-      "kavlan-2": "2001:660:4406:881:5:0::1b",
-      "kavlan-20": "2001:660:4406:3a0:805:0::1b",
-      "kavlan-21": "2001:660:4406:6a0:805:0::1b",
-      "kavlan-3": "2001:660:4406:882:5:0::1b",
-      "kavlan-4": "2001:660:4406:890:5:0::1b",
-      "kavlan-5": "2001:660:4406:891:5:0::1b",
-      "kavlan-6": "2001:660:4406:892:5:0::1b",
-      "kavlan-7": "2001:660:4406:893:5:0::1b",
-      "kavlan-8": "2001:660:4406:894:5:0::1b",
-      "kavlan-9": "2001:660:4406:895:5:0::1b"
+      "kavlan-1": "2001:660:4406:880:5::1b",
+      "kavlan-11": "2001:660:4406:1a0:805::1b",
+      "kavlan-12": "2001:660:4406:2a0:805::1b",
+      "kavlan-13": "2001:660:4406:4a0:805::1b",
+      "kavlan-14": "2001:660:4406:5a0:805::1b",
+      "kavlan-16": "2001:660:4406:7a0:805::1b",
+      "kavlan-18": "2001:660:4406:8a0:805::1b",
+      "kavlan-2": "2001:660:4406:881:5::1b",
+      "kavlan-20": "2001:660:4406:3a0:805::1b",
+      "kavlan-21": "2001:660:4406:6a0:805::1b",
+      "kavlan-3": "2001:660:4406:882:5::1b",
+      "kavlan-4": "2001:660:4406:890:5::1b",
+      "kavlan-5": "2001:660:4406:891:5::1b",
+      "kavlan-6": "2001:660:4406:892:5::1b",
+      "kavlan-7": "2001:660:4406:893:5::1b",
+      "kavlan-8": "2001:660:4406:894:5::1b",
+      "kavlan-9": "2001:660:4406:895:5::1b"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.27",
-      "ip6": "2001:660:4406:800:5:0::1b",
+      "ip6": "2001:660:4406:800:5::1b",
       "kavlan": true,
       "mac": "00:26:6c:f8:3e:ec",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-28.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-28.json
index ec8be7910756a732e183c7c416d0453af47bc792..d7e8e8f75eea0743f34dda66265808c5511e3492 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-28.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-28.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::1c",
-      "kavlan-11": "2001:660:4406:1a0:805:0::1c",
-      "kavlan-12": "2001:660:4406:2a0:805:0::1c",
-      "kavlan-13": "2001:660:4406:4a0:805:0::1c",
-      "kavlan-14": "2001:660:4406:5a0:805:0::1c",
-      "kavlan-16": "2001:660:4406:7a0:805:0::1c",
-      "kavlan-18": "2001:660:4406:8a0:805:0::1c",
-      "kavlan-2": "2001:660:4406:881:5:0::1c",
-      "kavlan-20": "2001:660:4406:3a0:805:0::1c",
-      "kavlan-21": "2001:660:4406:6a0:805:0::1c",
-      "kavlan-3": "2001:660:4406:882:5:0::1c",
-      "kavlan-4": "2001:660:4406:890:5:0::1c",
-      "kavlan-5": "2001:660:4406:891:5:0::1c",
-      "kavlan-6": "2001:660:4406:892:5:0::1c",
-      "kavlan-7": "2001:660:4406:893:5:0::1c",
-      "kavlan-8": "2001:660:4406:894:5:0::1c",
-      "kavlan-9": "2001:660:4406:895:5:0::1c"
+      "kavlan-1": "2001:660:4406:880:5::1c",
+      "kavlan-11": "2001:660:4406:1a0:805::1c",
+      "kavlan-12": "2001:660:4406:2a0:805::1c",
+      "kavlan-13": "2001:660:4406:4a0:805::1c",
+      "kavlan-14": "2001:660:4406:5a0:805::1c",
+      "kavlan-16": "2001:660:4406:7a0:805::1c",
+      "kavlan-18": "2001:660:4406:8a0:805::1c",
+      "kavlan-2": "2001:660:4406:881:5::1c",
+      "kavlan-20": "2001:660:4406:3a0:805::1c",
+      "kavlan-21": "2001:660:4406:6a0:805::1c",
+      "kavlan-3": "2001:660:4406:882:5::1c",
+      "kavlan-4": "2001:660:4406:890:5::1c",
+      "kavlan-5": "2001:660:4406:891:5::1c",
+      "kavlan-6": "2001:660:4406:892:5::1c",
+      "kavlan-7": "2001:660:4406:893:5::1c",
+      "kavlan-8": "2001:660:4406:894:5::1c",
+      "kavlan-9": "2001:660:4406:895:5::1c"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.28",
-      "ip6": "2001:660:4406:800:5:0::1c",
+      "ip6": "2001:660:4406:800:5::1c",
       "kavlan": true,
       "mac": "00:26:6c:f8:2e:d4",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-29.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-29.json
index 59f060cb251dbf49cfba68a95e293c36d5554466..5e3304ad551a5761b52d1e4f48353c6327e85066 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-29.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-29.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::1d",
-      "kavlan-11": "2001:660:4406:1a0:805:0::1d",
-      "kavlan-12": "2001:660:4406:2a0:805:0::1d",
-      "kavlan-13": "2001:660:4406:4a0:805:0::1d",
-      "kavlan-14": "2001:660:4406:5a0:805:0::1d",
-      "kavlan-16": "2001:660:4406:7a0:805:0::1d",
-      "kavlan-18": "2001:660:4406:8a0:805:0::1d",
-      "kavlan-2": "2001:660:4406:881:5:0::1d",
-      "kavlan-20": "2001:660:4406:3a0:805:0::1d",
-      "kavlan-21": "2001:660:4406:6a0:805:0::1d",
-      "kavlan-3": "2001:660:4406:882:5:0::1d",
-      "kavlan-4": "2001:660:4406:890:5:0::1d",
-      "kavlan-5": "2001:660:4406:891:5:0::1d",
-      "kavlan-6": "2001:660:4406:892:5:0::1d",
-      "kavlan-7": "2001:660:4406:893:5:0::1d",
-      "kavlan-8": "2001:660:4406:894:5:0::1d",
-      "kavlan-9": "2001:660:4406:895:5:0::1d"
+      "kavlan-1": "2001:660:4406:880:5::1d",
+      "kavlan-11": "2001:660:4406:1a0:805::1d",
+      "kavlan-12": "2001:660:4406:2a0:805::1d",
+      "kavlan-13": "2001:660:4406:4a0:805::1d",
+      "kavlan-14": "2001:660:4406:5a0:805::1d",
+      "kavlan-16": "2001:660:4406:7a0:805::1d",
+      "kavlan-18": "2001:660:4406:8a0:805::1d",
+      "kavlan-2": "2001:660:4406:881:5::1d",
+      "kavlan-20": "2001:660:4406:3a0:805::1d",
+      "kavlan-21": "2001:660:4406:6a0:805::1d",
+      "kavlan-3": "2001:660:4406:882:5::1d",
+      "kavlan-4": "2001:660:4406:890:5::1d",
+      "kavlan-5": "2001:660:4406:891:5::1d",
+      "kavlan-6": "2001:660:4406:892:5::1d",
+      "kavlan-7": "2001:660:4406:893:5::1d",
+      "kavlan-8": "2001:660:4406:894:5::1d",
+      "kavlan-9": "2001:660:4406:895:5::1d"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.29",
-      "ip6": "2001:660:4406:800:5:0::1d",
+      "ip6": "2001:660:4406:800:5::1d",
       "kavlan": true,
       "mac": "00:26:6c:f8:3c:54",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-3.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-3.json
index ec7e2c1ff04e4b3890fd3067904ee0484b43af13..5a15abd0f6507eed75e1bc407c090dc7a875a2b2 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-3.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-3.json
@@ -40,23 +40,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::3",
-      "kavlan-11": "2001:660:4406:1a0:805:0::3",
-      "kavlan-12": "2001:660:4406:2a0:805:0::3",
-      "kavlan-13": "2001:660:4406:4a0:805:0::3",
-      "kavlan-14": "2001:660:4406:5a0:805:0::3",
-      "kavlan-16": "2001:660:4406:7a0:805:0::3",
-      "kavlan-18": "2001:660:4406:8a0:805:0::3",
-      "kavlan-2": "2001:660:4406:881:5:0::3",
-      "kavlan-20": "2001:660:4406:3a0:805:0::3",
-      "kavlan-21": "2001:660:4406:6a0:805:0::3",
-      "kavlan-3": "2001:660:4406:882:5:0::3",
-      "kavlan-4": "2001:660:4406:890:5:0::3",
-      "kavlan-5": "2001:660:4406:891:5:0::3",
-      "kavlan-6": "2001:660:4406:892:5:0::3",
-      "kavlan-7": "2001:660:4406:893:5:0::3",
-      "kavlan-8": "2001:660:4406:894:5:0::3",
-      "kavlan-9": "2001:660:4406:895:5:0::3"
+      "kavlan-1": "2001:660:4406:880:5::3",
+      "kavlan-11": "2001:660:4406:1a0:805::3",
+      "kavlan-12": "2001:660:4406:2a0:805::3",
+      "kavlan-13": "2001:660:4406:4a0:805::3",
+      "kavlan-14": "2001:660:4406:5a0:805::3",
+      "kavlan-16": "2001:660:4406:7a0:805::3",
+      "kavlan-18": "2001:660:4406:8a0:805::3",
+      "kavlan-2": "2001:660:4406:881:5::3",
+      "kavlan-20": "2001:660:4406:3a0:805::3",
+      "kavlan-21": "2001:660:4406:6a0:805::3",
+      "kavlan-3": "2001:660:4406:882:5::3",
+      "kavlan-4": "2001:660:4406:890:5::3",
+      "kavlan-5": "2001:660:4406:891:5::3",
+      "kavlan-6": "2001:660:4406:892:5::3",
+      "kavlan-7": "2001:660:4406:893:5::3",
+      "kavlan-8": "2001:660:4406:894:5::3",
+      "kavlan-9": "2001:660:4406:895:5::3"
     }
   },
   "main_memory": {
@@ -73,7 +73,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.16.132.3",
-      "ip6": "2001:660:4406:800:5:0::3",
+      "ip6": "2001:660:4406:800:5::3",
       "kavlan": true,
       "mac": "00:26:6c:fb:8a:2c",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-30.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-30.json
index 727586c855a74ebe5515394180434aab7c738375..5c3cf69cc69e171dcb7b34d7eee109a0b618ea75 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-30.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-30.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::1e",
-      "kavlan-11": "2001:660:4406:1a0:805:0::1e",
-      "kavlan-12": "2001:660:4406:2a0:805:0::1e",
-      "kavlan-13": "2001:660:4406:4a0:805:0::1e",
-      "kavlan-14": "2001:660:4406:5a0:805:0::1e",
-      "kavlan-16": "2001:660:4406:7a0:805:0::1e",
-      "kavlan-18": "2001:660:4406:8a0:805:0::1e",
-      "kavlan-2": "2001:660:4406:881:5:0::1e",
-      "kavlan-20": "2001:660:4406:3a0:805:0::1e",
-      "kavlan-21": "2001:660:4406:6a0:805:0::1e",
-      "kavlan-3": "2001:660:4406:882:5:0::1e",
-      "kavlan-4": "2001:660:4406:890:5:0::1e",
-      "kavlan-5": "2001:660:4406:891:5:0::1e",
-      "kavlan-6": "2001:660:4406:892:5:0::1e",
-      "kavlan-7": "2001:660:4406:893:5:0::1e",
-      "kavlan-8": "2001:660:4406:894:5:0::1e",
-      "kavlan-9": "2001:660:4406:895:5:0::1e"
+      "kavlan-1": "2001:660:4406:880:5::1e",
+      "kavlan-11": "2001:660:4406:1a0:805::1e",
+      "kavlan-12": "2001:660:4406:2a0:805::1e",
+      "kavlan-13": "2001:660:4406:4a0:805::1e",
+      "kavlan-14": "2001:660:4406:5a0:805::1e",
+      "kavlan-16": "2001:660:4406:7a0:805::1e",
+      "kavlan-18": "2001:660:4406:8a0:805::1e",
+      "kavlan-2": "2001:660:4406:881:5::1e",
+      "kavlan-20": "2001:660:4406:3a0:805::1e",
+      "kavlan-21": "2001:660:4406:6a0:805::1e",
+      "kavlan-3": "2001:660:4406:882:5::1e",
+      "kavlan-4": "2001:660:4406:890:5::1e",
+      "kavlan-5": "2001:660:4406:891:5::1e",
+      "kavlan-6": "2001:660:4406:892:5::1e",
+      "kavlan-7": "2001:660:4406:893:5::1e",
+      "kavlan-8": "2001:660:4406:894:5::1e",
+      "kavlan-9": "2001:660:4406:895:5::1e"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.30",
-      "ip6": "2001:660:4406:800:5:0::1e",
+      "ip6": "2001:660:4406:800:5::1e",
       "kavlan": true,
       "mac": "00:26:6c:f8:2e:c0",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-31.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-31.json
index f288b1c9d000d5f8bd99c707e2a39dc878efad47..367380ef483eceb1d6b6821a9db1d1d479e13e1b 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-31.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-31.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::1f",
-      "kavlan-11": "2001:660:4406:1a0:805:0::1f",
-      "kavlan-12": "2001:660:4406:2a0:805:0::1f",
-      "kavlan-13": "2001:660:4406:4a0:805:0::1f",
-      "kavlan-14": "2001:660:4406:5a0:805:0::1f",
-      "kavlan-16": "2001:660:4406:7a0:805:0::1f",
-      "kavlan-18": "2001:660:4406:8a0:805:0::1f",
-      "kavlan-2": "2001:660:4406:881:5:0::1f",
-      "kavlan-20": "2001:660:4406:3a0:805:0::1f",
-      "kavlan-21": "2001:660:4406:6a0:805:0::1f",
-      "kavlan-3": "2001:660:4406:882:5:0::1f",
-      "kavlan-4": "2001:660:4406:890:5:0::1f",
-      "kavlan-5": "2001:660:4406:891:5:0::1f",
-      "kavlan-6": "2001:660:4406:892:5:0::1f",
-      "kavlan-7": "2001:660:4406:893:5:0::1f",
-      "kavlan-8": "2001:660:4406:894:5:0::1f",
-      "kavlan-9": "2001:660:4406:895:5:0::1f"
+      "kavlan-1": "2001:660:4406:880:5::1f",
+      "kavlan-11": "2001:660:4406:1a0:805::1f",
+      "kavlan-12": "2001:660:4406:2a0:805::1f",
+      "kavlan-13": "2001:660:4406:4a0:805::1f",
+      "kavlan-14": "2001:660:4406:5a0:805::1f",
+      "kavlan-16": "2001:660:4406:7a0:805::1f",
+      "kavlan-18": "2001:660:4406:8a0:805::1f",
+      "kavlan-2": "2001:660:4406:881:5::1f",
+      "kavlan-20": "2001:660:4406:3a0:805::1f",
+      "kavlan-21": "2001:660:4406:6a0:805::1f",
+      "kavlan-3": "2001:660:4406:882:5::1f",
+      "kavlan-4": "2001:660:4406:890:5::1f",
+      "kavlan-5": "2001:660:4406:891:5::1f",
+      "kavlan-6": "2001:660:4406:892:5::1f",
+      "kavlan-7": "2001:660:4406:893:5::1f",
+      "kavlan-8": "2001:660:4406:894:5::1f",
+      "kavlan-9": "2001:660:4406:895:5::1f"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.31",
-      "ip6": "2001:660:4406:800:5:0::1f",
+      "ip6": "2001:660:4406:800:5::1f",
       "kavlan": true,
       "mac": "00:26:6c:f8:32:38",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-32.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-32.json
index a79fe0ff471101c08de67fb3d7e2789e3b6356f3..4b0717b5877a69f860328112c4f0c6ccf210f29e 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-32.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-32.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::20",
-      "kavlan-11": "2001:660:4406:1a0:805:0::20",
-      "kavlan-12": "2001:660:4406:2a0:805:0::20",
-      "kavlan-13": "2001:660:4406:4a0:805:0::20",
-      "kavlan-14": "2001:660:4406:5a0:805:0::20",
-      "kavlan-16": "2001:660:4406:7a0:805:0::20",
-      "kavlan-18": "2001:660:4406:8a0:805:0::20",
-      "kavlan-2": "2001:660:4406:881:5:0::20",
-      "kavlan-20": "2001:660:4406:3a0:805:0::20",
-      "kavlan-21": "2001:660:4406:6a0:805:0::20",
-      "kavlan-3": "2001:660:4406:882:5:0::20",
-      "kavlan-4": "2001:660:4406:890:5:0::20",
-      "kavlan-5": "2001:660:4406:891:5:0::20",
-      "kavlan-6": "2001:660:4406:892:5:0::20",
-      "kavlan-7": "2001:660:4406:893:5:0::20",
-      "kavlan-8": "2001:660:4406:894:5:0::20",
-      "kavlan-9": "2001:660:4406:895:5:0::20"
+      "kavlan-1": "2001:660:4406:880:5::20",
+      "kavlan-11": "2001:660:4406:1a0:805::20",
+      "kavlan-12": "2001:660:4406:2a0:805::20",
+      "kavlan-13": "2001:660:4406:4a0:805::20",
+      "kavlan-14": "2001:660:4406:5a0:805::20",
+      "kavlan-16": "2001:660:4406:7a0:805::20",
+      "kavlan-18": "2001:660:4406:8a0:805::20",
+      "kavlan-2": "2001:660:4406:881:5::20",
+      "kavlan-20": "2001:660:4406:3a0:805::20",
+      "kavlan-21": "2001:660:4406:6a0:805::20",
+      "kavlan-3": "2001:660:4406:882:5::20",
+      "kavlan-4": "2001:660:4406:890:5::20",
+      "kavlan-5": "2001:660:4406:891:5::20",
+      "kavlan-6": "2001:660:4406:892:5::20",
+      "kavlan-7": "2001:660:4406:893:5::20",
+      "kavlan-8": "2001:660:4406:894:5::20",
+      "kavlan-9": "2001:660:4406:895:5::20"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.16.132.32",
-      "ip6": "2001:660:4406:800:5:0::20",
+      "ip6": "2001:660:4406:800:5::20",
       "kavlan": true,
       "mac": "00:26:6c:f3:2e:b0",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-33.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-33.json
index 7a20142f9400ce9e0a758818366d89c9964fd470..df3f06ef12215db7afc3588e0bfc3247176ba483 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-33.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-33.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::21",
-      "kavlan-11": "2001:660:4406:1a0:805:0::21",
-      "kavlan-12": "2001:660:4406:2a0:805:0::21",
-      "kavlan-13": "2001:660:4406:4a0:805:0::21",
-      "kavlan-14": "2001:660:4406:5a0:805:0::21",
-      "kavlan-16": "2001:660:4406:7a0:805:0::21",
-      "kavlan-18": "2001:660:4406:8a0:805:0::21",
-      "kavlan-2": "2001:660:4406:881:5:0::21",
-      "kavlan-20": "2001:660:4406:3a0:805:0::21",
-      "kavlan-21": "2001:660:4406:6a0:805:0::21",
-      "kavlan-3": "2001:660:4406:882:5:0::21",
-      "kavlan-4": "2001:660:4406:890:5:0::21",
-      "kavlan-5": "2001:660:4406:891:5:0::21",
-      "kavlan-6": "2001:660:4406:892:5:0::21",
-      "kavlan-7": "2001:660:4406:893:5:0::21",
-      "kavlan-8": "2001:660:4406:894:5:0::21",
-      "kavlan-9": "2001:660:4406:895:5:0::21"
+      "kavlan-1": "2001:660:4406:880:5::21",
+      "kavlan-11": "2001:660:4406:1a0:805::21",
+      "kavlan-12": "2001:660:4406:2a0:805::21",
+      "kavlan-13": "2001:660:4406:4a0:805::21",
+      "kavlan-14": "2001:660:4406:5a0:805::21",
+      "kavlan-16": "2001:660:4406:7a0:805::21",
+      "kavlan-18": "2001:660:4406:8a0:805::21",
+      "kavlan-2": "2001:660:4406:881:5::21",
+      "kavlan-20": "2001:660:4406:3a0:805::21",
+      "kavlan-21": "2001:660:4406:6a0:805::21",
+      "kavlan-3": "2001:660:4406:882:5::21",
+      "kavlan-4": "2001:660:4406:890:5::21",
+      "kavlan-5": "2001:660:4406:891:5::21",
+      "kavlan-6": "2001:660:4406:892:5::21",
+      "kavlan-7": "2001:660:4406:893:5::21",
+      "kavlan-8": "2001:660:4406:894:5::21",
+      "kavlan-9": "2001:660:4406:895:5::21"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.33",
-      "ip6": "2001:660:4406:800:5:0::21",
+      "ip6": "2001:660:4406:800:5::21",
       "kavlan": true,
       "mac": "00:26:6c:f8:31:20",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-34.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-34.json
index d2f1d450d8903785562881fca4eaf575102cceb2..3cacaddf49ac283fa48a71dc66790d4d8063a7c9 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-34.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-34.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::22",
-      "kavlan-11": "2001:660:4406:1a0:805:0::22",
-      "kavlan-12": "2001:660:4406:2a0:805:0::22",
-      "kavlan-13": "2001:660:4406:4a0:805:0::22",
-      "kavlan-14": "2001:660:4406:5a0:805:0::22",
-      "kavlan-16": "2001:660:4406:7a0:805:0::22",
-      "kavlan-18": "2001:660:4406:8a0:805:0::22",
-      "kavlan-2": "2001:660:4406:881:5:0::22",
-      "kavlan-20": "2001:660:4406:3a0:805:0::22",
-      "kavlan-21": "2001:660:4406:6a0:805:0::22",
-      "kavlan-3": "2001:660:4406:882:5:0::22",
-      "kavlan-4": "2001:660:4406:890:5:0::22",
-      "kavlan-5": "2001:660:4406:891:5:0::22",
-      "kavlan-6": "2001:660:4406:892:5:0::22",
-      "kavlan-7": "2001:660:4406:893:5:0::22",
-      "kavlan-8": "2001:660:4406:894:5:0::22",
-      "kavlan-9": "2001:660:4406:895:5:0::22"
+      "kavlan-1": "2001:660:4406:880:5::22",
+      "kavlan-11": "2001:660:4406:1a0:805::22",
+      "kavlan-12": "2001:660:4406:2a0:805::22",
+      "kavlan-13": "2001:660:4406:4a0:805::22",
+      "kavlan-14": "2001:660:4406:5a0:805::22",
+      "kavlan-16": "2001:660:4406:7a0:805::22",
+      "kavlan-18": "2001:660:4406:8a0:805::22",
+      "kavlan-2": "2001:660:4406:881:5::22",
+      "kavlan-20": "2001:660:4406:3a0:805::22",
+      "kavlan-21": "2001:660:4406:6a0:805::22",
+      "kavlan-3": "2001:660:4406:882:5::22",
+      "kavlan-4": "2001:660:4406:890:5::22",
+      "kavlan-5": "2001:660:4406:891:5::22",
+      "kavlan-6": "2001:660:4406:892:5::22",
+      "kavlan-7": "2001:660:4406:893:5::22",
+      "kavlan-8": "2001:660:4406:894:5::22",
+      "kavlan-9": "2001:660:4406:895:5::22"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.34",
-      "ip6": "2001:660:4406:800:5:0::22",
+      "ip6": "2001:660:4406:800:5::22",
       "kavlan": true,
       "mac": "00:26:6c:f8:5e:40",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-35.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-35.json
index fae4691c9e4ffd2e16d64555c69fbff39ffa28e9..5ad8cce9a391d0bb236383731c2cdbd123eaf0b3 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-35.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-35.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::23",
-      "kavlan-11": "2001:660:4406:1a0:805:0::23",
-      "kavlan-12": "2001:660:4406:2a0:805:0::23",
-      "kavlan-13": "2001:660:4406:4a0:805:0::23",
-      "kavlan-14": "2001:660:4406:5a0:805:0::23",
-      "kavlan-16": "2001:660:4406:7a0:805:0::23",
-      "kavlan-18": "2001:660:4406:8a0:805:0::23",
-      "kavlan-2": "2001:660:4406:881:5:0::23",
-      "kavlan-20": "2001:660:4406:3a0:805:0::23",
-      "kavlan-21": "2001:660:4406:6a0:805:0::23",
-      "kavlan-3": "2001:660:4406:882:5:0::23",
-      "kavlan-4": "2001:660:4406:890:5:0::23",
-      "kavlan-5": "2001:660:4406:891:5:0::23",
-      "kavlan-6": "2001:660:4406:892:5:0::23",
-      "kavlan-7": "2001:660:4406:893:5:0::23",
-      "kavlan-8": "2001:660:4406:894:5:0::23",
-      "kavlan-9": "2001:660:4406:895:5:0::23"
+      "kavlan-1": "2001:660:4406:880:5::23",
+      "kavlan-11": "2001:660:4406:1a0:805::23",
+      "kavlan-12": "2001:660:4406:2a0:805::23",
+      "kavlan-13": "2001:660:4406:4a0:805::23",
+      "kavlan-14": "2001:660:4406:5a0:805::23",
+      "kavlan-16": "2001:660:4406:7a0:805::23",
+      "kavlan-18": "2001:660:4406:8a0:805::23",
+      "kavlan-2": "2001:660:4406:881:5::23",
+      "kavlan-20": "2001:660:4406:3a0:805::23",
+      "kavlan-21": "2001:660:4406:6a0:805::23",
+      "kavlan-3": "2001:660:4406:882:5::23",
+      "kavlan-4": "2001:660:4406:890:5::23",
+      "kavlan-5": "2001:660:4406:891:5::23",
+      "kavlan-6": "2001:660:4406:892:5::23",
+      "kavlan-7": "2001:660:4406:893:5::23",
+      "kavlan-8": "2001:660:4406:894:5::23",
+      "kavlan-9": "2001:660:4406:895:5::23"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.35",
-      "ip6": "2001:660:4406:800:5:0::23",
+      "ip6": "2001:660:4406:800:5::23",
       "kavlan": true,
       "mac": "00:26:6c:f8:31:30",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-36.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-36.json
index 3917009fff9e94611f5f5c6b3b760d6399cd724e..45b56dd5f173d91e86c4127a408ca5cc7e17c2ed 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-36.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-36.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::24",
-      "kavlan-11": "2001:660:4406:1a0:805:0::24",
-      "kavlan-12": "2001:660:4406:2a0:805:0::24",
-      "kavlan-13": "2001:660:4406:4a0:805:0::24",
-      "kavlan-14": "2001:660:4406:5a0:805:0::24",
-      "kavlan-16": "2001:660:4406:7a0:805:0::24",
-      "kavlan-18": "2001:660:4406:8a0:805:0::24",
-      "kavlan-2": "2001:660:4406:881:5:0::24",
-      "kavlan-20": "2001:660:4406:3a0:805:0::24",
-      "kavlan-21": "2001:660:4406:6a0:805:0::24",
-      "kavlan-3": "2001:660:4406:882:5:0::24",
-      "kavlan-4": "2001:660:4406:890:5:0::24",
-      "kavlan-5": "2001:660:4406:891:5:0::24",
-      "kavlan-6": "2001:660:4406:892:5:0::24",
-      "kavlan-7": "2001:660:4406:893:5:0::24",
-      "kavlan-8": "2001:660:4406:894:5:0::24",
-      "kavlan-9": "2001:660:4406:895:5:0::24"
+      "kavlan-1": "2001:660:4406:880:5::24",
+      "kavlan-11": "2001:660:4406:1a0:805::24",
+      "kavlan-12": "2001:660:4406:2a0:805::24",
+      "kavlan-13": "2001:660:4406:4a0:805::24",
+      "kavlan-14": "2001:660:4406:5a0:805::24",
+      "kavlan-16": "2001:660:4406:7a0:805::24",
+      "kavlan-18": "2001:660:4406:8a0:805::24",
+      "kavlan-2": "2001:660:4406:881:5::24",
+      "kavlan-20": "2001:660:4406:3a0:805::24",
+      "kavlan-21": "2001:660:4406:6a0:805::24",
+      "kavlan-3": "2001:660:4406:882:5::24",
+      "kavlan-4": "2001:660:4406:890:5::24",
+      "kavlan-5": "2001:660:4406:891:5::24",
+      "kavlan-6": "2001:660:4406:892:5::24",
+      "kavlan-7": "2001:660:4406:893:5::24",
+      "kavlan-8": "2001:660:4406:894:5::24",
+      "kavlan-9": "2001:660:4406:895:5::24"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.36",
-      "ip6": "2001:660:4406:800:5:0::24",
+      "ip6": "2001:660:4406:800:5::24",
       "kavlan": true,
       "mac": "00:26:6c:f8:3f:b8",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-37.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-37.json
index b8163b3dee91bdd1501befb9ce4383b9ae60304e..b565092091b34a6bf7456a123dd469b50fe415fa 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-37.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-37.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::25",
-      "kavlan-11": "2001:660:4406:1a0:805:0::25",
-      "kavlan-12": "2001:660:4406:2a0:805:0::25",
-      "kavlan-13": "2001:660:4406:4a0:805:0::25",
-      "kavlan-14": "2001:660:4406:5a0:805:0::25",
-      "kavlan-16": "2001:660:4406:7a0:805:0::25",
-      "kavlan-18": "2001:660:4406:8a0:805:0::25",
-      "kavlan-2": "2001:660:4406:881:5:0::25",
-      "kavlan-20": "2001:660:4406:3a0:805:0::25",
-      "kavlan-21": "2001:660:4406:6a0:805:0::25",
-      "kavlan-3": "2001:660:4406:882:5:0::25",
-      "kavlan-4": "2001:660:4406:890:5:0::25",
-      "kavlan-5": "2001:660:4406:891:5:0::25",
-      "kavlan-6": "2001:660:4406:892:5:0::25",
-      "kavlan-7": "2001:660:4406:893:5:0::25",
-      "kavlan-8": "2001:660:4406:894:5:0::25",
-      "kavlan-9": "2001:660:4406:895:5:0::25"
+      "kavlan-1": "2001:660:4406:880:5::25",
+      "kavlan-11": "2001:660:4406:1a0:805::25",
+      "kavlan-12": "2001:660:4406:2a0:805::25",
+      "kavlan-13": "2001:660:4406:4a0:805::25",
+      "kavlan-14": "2001:660:4406:5a0:805::25",
+      "kavlan-16": "2001:660:4406:7a0:805::25",
+      "kavlan-18": "2001:660:4406:8a0:805::25",
+      "kavlan-2": "2001:660:4406:881:5::25",
+      "kavlan-20": "2001:660:4406:3a0:805::25",
+      "kavlan-21": "2001:660:4406:6a0:805::25",
+      "kavlan-3": "2001:660:4406:882:5::25",
+      "kavlan-4": "2001:660:4406:890:5::25",
+      "kavlan-5": "2001:660:4406:891:5::25",
+      "kavlan-6": "2001:660:4406:892:5::25",
+      "kavlan-7": "2001:660:4406:893:5::25",
+      "kavlan-8": "2001:660:4406:894:5::25",
+      "kavlan-9": "2001:660:4406:895:5::25"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.37",
-      "ip6": "2001:660:4406:800:5:0::25",
+      "ip6": "2001:660:4406:800:5::25",
       "kavlan": true,
       "mac": "00:26:6c:f8:2f:14",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-38.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-38.json
index 070c8fe5f8d118413a62c375f4808a7071c64c8c..1caeb32058cac6c259727d0ef2286b688550e0dd 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-38.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-38.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::26",
-      "kavlan-11": "2001:660:4406:1a0:805:0::26",
-      "kavlan-12": "2001:660:4406:2a0:805:0::26",
-      "kavlan-13": "2001:660:4406:4a0:805:0::26",
-      "kavlan-14": "2001:660:4406:5a0:805:0::26",
-      "kavlan-16": "2001:660:4406:7a0:805:0::26",
-      "kavlan-18": "2001:660:4406:8a0:805:0::26",
-      "kavlan-2": "2001:660:4406:881:5:0::26",
-      "kavlan-20": "2001:660:4406:3a0:805:0::26",
-      "kavlan-21": "2001:660:4406:6a0:805:0::26",
-      "kavlan-3": "2001:660:4406:882:5:0::26",
-      "kavlan-4": "2001:660:4406:890:5:0::26",
-      "kavlan-5": "2001:660:4406:891:5:0::26",
-      "kavlan-6": "2001:660:4406:892:5:0::26",
-      "kavlan-7": "2001:660:4406:893:5:0::26",
-      "kavlan-8": "2001:660:4406:894:5:0::26",
-      "kavlan-9": "2001:660:4406:895:5:0::26"
+      "kavlan-1": "2001:660:4406:880:5::26",
+      "kavlan-11": "2001:660:4406:1a0:805::26",
+      "kavlan-12": "2001:660:4406:2a0:805::26",
+      "kavlan-13": "2001:660:4406:4a0:805::26",
+      "kavlan-14": "2001:660:4406:5a0:805::26",
+      "kavlan-16": "2001:660:4406:7a0:805::26",
+      "kavlan-18": "2001:660:4406:8a0:805::26",
+      "kavlan-2": "2001:660:4406:881:5::26",
+      "kavlan-20": "2001:660:4406:3a0:805::26",
+      "kavlan-21": "2001:660:4406:6a0:805::26",
+      "kavlan-3": "2001:660:4406:882:5::26",
+      "kavlan-4": "2001:660:4406:890:5::26",
+      "kavlan-5": "2001:660:4406:891:5::26",
+      "kavlan-6": "2001:660:4406:892:5::26",
+      "kavlan-7": "2001:660:4406:893:5::26",
+      "kavlan-8": "2001:660:4406:894:5::26",
+      "kavlan-9": "2001:660:4406:895:5::26"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.38",
-      "ip6": "2001:660:4406:800:5:0::26",
+      "ip6": "2001:660:4406:800:5::26",
       "kavlan": true,
       "mac": "00:26:6c:f8:2e:30",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-39.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-39.json
index a214a001664f119647741a555ea56aab2fc269f3..61d63080dad91b53634e41699f0e66cfb41a1c59 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-39.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-39.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::27",
-      "kavlan-11": "2001:660:4406:1a0:805:0::27",
-      "kavlan-12": "2001:660:4406:2a0:805:0::27",
-      "kavlan-13": "2001:660:4406:4a0:805:0::27",
-      "kavlan-14": "2001:660:4406:5a0:805:0::27",
-      "kavlan-16": "2001:660:4406:7a0:805:0::27",
-      "kavlan-18": "2001:660:4406:8a0:805:0::27",
-      "kavlan-2": "2001:660:4406:881:5:0::27",
-      "kavlan-20": "2001:660:4406:3a0:805:0::27",
-      "kavlan-21": "2001:660:4406:6a0:805:0::27",
-      "kavlan-3": "2001:660:4406:882:5:0::27",
-      "kavlan-4": "2001:660:4406:890:5:0::27",
-      "kavlan-5": "2001:660:4406:891:5:0::27",
-      "kavlan-6": "2001:660:4406:892:5:0::27",
-      "kavlan-7": "2001:660:4406:893:5:0::27",
-      "kavlan-8": "2001:660:4406:894:5:0::27",
-      "kavlan-9": "2001:660:4406:895:5:0::27"
+      "kavlan-1": "2001:660:4406:880:5::27",
+      "kavlan-11": "2001:660:4406:1a0:805::27",
+      "kavlan-12": "2001:660:4406:2a0:805::27",
+      "kavlan-13": "2001:660:4406:4a0:805::27",
+      "kavlan-14": "2001:660:4406:5a0:805::27",
+      "kavlan-16": "2001:660:4406:7a0:805::27",
+      "kavlan-18": "2001:660:4406:8a0:805::27",
+      "kavlan-2": "2001:660:4406:881:5::27",
+      "kavlan-20": "2001:660:4406:3a0:805::27",
+      "kavlan-21": "2001:660:4406:6a0:805::27",
+      "kavlan-3": "2001:660:4406:882:5::27",
+      "kavlan-4": "2001:660:4406:890:5::27",
+      "kavlan-5": "2001:660:4406:891:5::27",
+      "kavlan-6": "2001:660:4406:892:5::27",
+      "kavlan-7": "2001:660:4406:893:5::27",
+      "kavlan-8": "2001:660:4406:894:5::27",
+      "kavlan-9": "2001:660:4406:895:5::27"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.39",
-      "ip6": "2001:660:4406:800:5:0::27",
+      "ip6": "2001:660:4406:800:5::27",
       "kavlan": true,
       "mac": "00:26:6c:f8:58:1c",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-4.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-4.json
index dfd38bd7db72774623eed2db1670d8eca5d59276..3f44469bd4c78ab540ce24d60e2718ea2fd2f17e 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-4.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::4",
-      "kavlan-11": "2001:660:4406:1a0:805:0::4",
-      "kavlan-12": "2001:660:4406:2a0:805:0::4",
-      "kavlan-13": "2001:660:4406:4a0:805:0::4",
-      "kavlan-14": "2001:660:4406:5a0:805:0::4",
-      "kavlan-16": "2001:660:4406:7a0:805:0::4",
-      "kavlan-18": "2001:660:4406:8a0:805:0::4",
-      "kavlan-2": "2001:660:4406:881:5:0::4",
-      "kavlan-20": "2001:660:4406:3a0:805:0::4",
-      "kavlan-21": "2001:660:4406:6a0:805:0::4",
-      "kavlan-3": "2001:660:4406:882:5:0::4",
-      "kavlan-4": "2001:660:4406:890:5:0::4",
-      "kavlan-5": "2001:660:4406:891:5:0::4",
-      "kavlan-6": "2001:660:4406:892:5:0::4",
-      "kavlan-7": "2001:660:4406:893:5:0::4",
-      "kavlan-8": "2001:660:4406:894:5:0::4",
-      "kavlan-9": "2001:660:4406:895:5:0::4"
+      "kavlan-1": "2001:660:4406:880:5::4",
+      "kavlan-11": "2001:660:4406:1a0:805::4",
+      "kavlan-12": "2001:660:4406:2a0:805::4",
+      "kavlan-13": "2001:660:4406:4a0:805::4",
+      "kavlan-14": "2001:660:4406:5a0:805::4",
+      "kavlan-16": "2001:660:4406:7a0:805::4",
+      "kavlan-18": "2001:660:4406:8a0:805::4",
+      "kavlan-2": "2001:660:4406:881:5::4",
+      "kavlan-20": "2001:660:4406:3a0:805::4",
+      "kavlan-21": "2001:660:4406:6a0:805::4",
+      "kavlan-3": "2001:660:4406:882:5::4",
+      "kavlan-4": "2001:660:4406:890:5::4",
+      "kavlan-5": "2001:660:4406:891:5::4",
+      "kavlan-6": "2001:660:4406:892:5::4",
+      "kavlan-7": "2001:660:4406:893:5::4",
+      "kavlan-8": "2001:660:4406:894:5::4",
+      "kavlan-9": "2001:660:4406:895:5::4"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.4",
-      "ip6": "2001:660:4406:800:5:0::4",
+      "ip6": "2001:660:4406:800:5::4",
       "kavlan": true,
       "mac": "00:26:6c:f8:2d:c4",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-40.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-40.json
index a9d2213f5818ab1a2708b60e3df7e5c5e7c2b97a..33a296af7d4fc510d20bf30ff1fed75b71e5925f 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-40.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-40.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::28",
-      "kavlan-11": "2001:660:4406:1a0:805:0::28",
-      "kavlan-12": "2001:660:4406:2a0:805:0::28",
-      "kavlan-13": "2001:660:4406:4a0:805:0::28",
-      "kavlan-14": "2001:660:4406:5a0:805:0::28",
-      "kavlan-16": "2001:660:4406:7a0:805:0::28",
-      "kavlan-18": "2001:660:4406:8a0:805:0::28",
-      "kavlan-2": "2001:660:4406:881:5:0::28",
-      "kavlan-20": "2001:660:4406:3a0:805:0::28",
-      "kavlan-21": "2001:660:4406:6a0:805:0::28",
-      "kavlan-3": "2001:660:4406:882:5:0::28",
-      "kavlan-4": "2001:660:4406:890:5:0::28",
-      "kavlan-5": "2001:660:4406:891:5:0::28",
-      "kavlan-6": "2001:660:4406:892:5:0::28",
-      "kavlan-7": "2001:660:4406:893:5:0::28",
-      "kavlan-8": "2001:660:4406:894:5:0::28",
-      "kavlan-9": "2001:660:4406:895:5:0::28"
+      "kavlan-1": "2001:660:4406:880:5::28",
+      "kavlan-11": "2001:660:4406:1a0:805::28",
+      "kavlan-12": "2001:660:4406:2a0:805::28",
+      "kavlan-13": "2001:660:4406:4a0:805::28",
+      "kavlan-14": "2001:660:4406:5a0:805::28",
+      "kavlan-16": "2001:660:4406:7a0:805::28",
+      "kavlan-18": "2001:660:4406:8a0:805::28",
+      "kavlan-2": "2001:660:4406:881:5::28",
+      "kavlan-20": "2001:660:4406:3a0:805::28",
+      "kavlan-21": "2001:660:4406:6a0:805::28",
+      "kavlan-3": "2001:660:4406:882:5::28",
+      "kavlan-4": "2001:660:4406:890:5::28",
+      "kavlan-5": "2001:660:4406:891:5::28",
+      "kavlan-6": "2001:660:4406:892:5::28",
+      "kavlan-7": "2001:660:4406:893:5::28",
+      "kavlan-8": "2001:660:4406:894:5::28",
+      "kavlan-9": "2001:660:4406:895:5::28"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.40",
-      "ip6": "2001:660:4406:800:5:0::28",
+      "ip6": "2001:660:4406:800:5::28",
       "kavlan": true,
       "mac": "00:26:6c:f8:30:9c",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-41.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-41.json
index a859ca27d59649cea7dfcaf7e52750ba13b0ca08..f11bb9a500f6c0f0340d5f52651b4d498098ea7b 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-41.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-41.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::29",
-      "kavlan-11": "2001:660:4406:1a0:805:0::29",
-      "kavlan-12": "2001:660:4406:2a0:805:0::29",
-      "kavlan-13": "2001:660:4406:4a0:805:0::29",
-      "kavlan-14": "2001:660:4406:5a0:805:0::29",
-      "kavlan-16": "2001:660:4406:7a0:805:0::29",
-      "kavlan-18": "2001:660:4406:8a0:805:0::29",
-      "kavlan-2": "2001:660:4406:881:5:0::29",
-      "kavlan-20": "2001:660:4406:3a0:805:0::29",
-      "kavlan-21": "2001:660:4406:6a0:805:0::29",
-      "kavlan-3": "2001:660:4406:882:5:0::29",
-      "kavlan-4": "2001:660:4406:890:5:0::29",
-      "kavlan-5": "2001:660:4406:891:5:0::29",
-      "kavlan-6": "2001:660:4406:892:5:0::29",
-      "kavlan-7": "2001:660:4406:893:5:0::29",
-      "kavlan-8": "2001:660:4406:894:5:0::29",
-      "kavlan-9": "2001:660:4406:895:5:0::29"
+      "kavlan-1": "2001:660:4406:880:5::29",
+      "kavlan-11": "2001:660:4406:1a0:805::29",
+      "kavlan-12": "2001:660:4406:2a0:805::29",
+      "kavlan-13": "2001:660:4406:4a0:805::29",
+      "kavlan-14": "2001:660:4406:5a0:805::29",
+      "kavlan-16": "2001:660:4406:7a0:805::29",
+      "kavlan-18": "2001:660:4406:8a0:805::29",
+      "kavlan-2": "2001:660:4406:881:5::29",
+      "kavlan-20": "2001:660:4406:3a0:805::29",
+      "kavlan-21": "2001:660:4406:6a0:805::29",
+      "kavlan-3": "2001:660:4406:882:5::29",
+      "kavlan-4": "2001:660:4406:890:5::29",
+      "kavlan-5": "2001:660:4406:891:5::29",
+      "kavlan-6": "2001:660:4406:892:5::29",
+      "kavlan-7": "2001:660:4406:893:5::29",
+      "kavlan-8": "2001:660:4406:894:5::29",
+      "kavlan-9": "2001:660:4406:895:5::29"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.41",
-      "ip6": "2001:660:4406:800:5:0::29",
+      "ip6": "2001:660:4406:800:5::29",
       "kavlan": true,
       "mac": "00:26:6c:f8:35:7c",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-42.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-42.json
index 795af532c97047f52846c5a2b4f9c7b9c101a7e4..17b6b484e2f779652f8c032129cfe6bef009d5e0 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-42.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-42.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::2a",
-      "kavlan-11": "2001:660:4406:1a0:805:0::2a",
-      "kavlan-12": "2001:660:4406:2a0:805:0::2a",
-      "kavlan-13": "2001:660:4406:4a0:805:0::2a",
-      "kavlan-14": "2001:660:4406:5a0:805:0::2a",
-      "kavlan-16": "2001:660:4406:7a0:805:0::2a",
-      "kavlan-18": "2001:660:4406:8a0:805:0::2a",
-      "kavlan-2": "2001:660:4406:881:5:0::2a",
-      "kavlan-20": "2001:660:4406:3a0:805:0::2a",
-      "kavlan-21": "2001:660:4406:6a0:805:0::2a",
-      "kavlan-3": "2001:660:4406:882:5:0::2a",
-      "kavlan-4": "2001:660:4406:890:5:0::2a",
-      "kavlan-5": "2001:660:4406:891:5:0::2a",
-      "kavlan-6": "2001:660:4406:892:5:0::2a",
-      "kavlan-7": "2001:660:4406:893:5:0::2a",
-      "kavlan-8": "2001:660:4406:894:5:0::2a",
-      "kavlan-9": "2001:660:4406:895:5:0::2a"
+      "kavlan-1": "2001:660:4406:880:5::2a",
+      "kavlan-11": "2001:660:4406:1a0:805::2a",
+      "kavlan-12": "2001:660:4406:2a0:805::2a",
+      "kavlan-13": "2001:660:4406:4a0:805::2a",
+      "kavlan-14": "2001:660:4406:5a0:805::2a",
+      "kavlan-16": "2001:660:4406:7a0:805::2a",
+      "kavlan-18": "2001:660:4406:8a0:805::2a",
+      "kavlan-2": "2001:660:4406:881:5::2a",
+      "kavlan-20": "2001:660:4406:3a0:805::2a",
+      "kavlan-21": "2001:660:4406:6a0:805::2a",
+      "kavlan-3": "2001:660:4406:882:5::2a",
+      "kavlan-4": "2001:660:4406:890:5::2a",
+      "kavlan-5": "2001:660:4406:891:5::2a",
+      "kavlan-6": "2001:660:4406:892:5::2a",
+      "kavlan-7": "2001:660:4406:893:5::2a",
+      "kavlan-8": "2001:660:4406:894:5::2a",
+      "kavlan-9": "2001:660:4406:895:5::2a"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.42",
-      "ip6": "2001:660:4406:800:5:0::2a",
+      "ip6": "2001:660:4406:800:5::2a",
       "kavlan": true,
       "mac": "00:26:6c:f8:3d:04",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-43.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-43.json
index e73215c6ce92236bd996939d6bddaeb7917db798..5056866759d6437b833cf7e19400e6c5c7078ea9 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-43.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-43.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::2b",
-      "kavlan-11": "2001:660:4406:1a0:805:0::2b",
-      "kavlan-12": "2001:660:4406:2a0:805:0::2b",
-      "kavlan-13": "2001:660:4406:4a0:805:0::2b",
-      "kavlan-14": "2001:660:4406:5a0:805:0::2b",
-      "kavlan-16": "2001:660:4406:7a0:805:0::2b",
-      "kavlan-18": "2001:660:4406:8a0:805:0::2b",
-      "kavlan-2": "2001:660:4406:881:5:0::2b",
-      "kavlan-20": "2001:660:4406:3a0:805:0::2b",
-      "kavlan-21": "2001:660:4406:6a0:805:0::2b",
-      "kavlan-3": "2001:660:4406:882:5:0::2b",
-      "kavlan-4": "2001:660:4406:890:5:0::2b",
-      "kavlan-5": "2001:660:4406:891:5:0::2b",
-      "kavlan-6": "2001:660:4406:892:5:0::2b",
-      "kavlan-7": "2001:660:4406:893:5:0::2b",
-      "kavlan-8": "2001:660:4406:894:5:0::2b",
-      "kavlan-9": "2001:660:4406:895:5:0::2b"
+      "kavlan-1": "2001:660:4406:880:5::2b",
+      "kavlan-11": "2001:660:4406:1a0:805::2b",
+      "kavlan-12": "2001:660:4406:2a0:805::2b",
+      "kavlan-13": "2001:660:4406:4a0:805::2b",
+      "kavlan-14": "2001:660:4406:5a0:805::2b",
+      "kavlan-16": "2001:660:4406:7a0:805::2b",
+      "kavlan-18": "2001:660:4406:8a0:805::2b",
+      "kavlan-2": "2001:660:4406:881:5::2b",
+      "kavlan-20": "2001:660:4406:3a0:805::2b",
+      "kavlan-21": "2001:660:4406:6a0:805::2b",
+      "kavlan-3": "2001:660:4406:882:5::2b",
+      "kavlan-4": "2001:660:4406:890:5::2b",
+      "kavlan-5": "2001:660:4406:891:5::2b",
+      "kavlan-6": "2001:660:4406:892:5::2b",
+      "kavlan-7": "2001:660:4406:893:5::2b",
+      "kavlan-8": "2001:660:4406:894:5::2b",
+      "kavlan-9": "2001:660:4406:895:5::2b"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.43",
-      "ip6": "2001:660:4406:800:5:0::2b",
+      "ip6": "2001:660:4406:800:5::2b",
       "kavlan": true,
       "mac": "00:26:6c:f8:58:28",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-44.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-44.json
index 256055a922a256c5b9de9f5dc89a8f3f275c2ea6..08b9ee33c20ac981112a263ac39c8f9d342a525a 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-44.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-44.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::2c",
-      "kavlan-11": "2001:660:4406:1a0:805:0::2c",
-      "kavlan-12": "2001:660:4406:2a0:805:0::2c",
-      "kavlan-13": "2001:660:4406:4a0:805:0::2c",
-      "kavlan-14": "2001:660:4406:5a0:805:0::2c",
-      "kavlan-16": "2001:660:4406:7a0:805:0::2c",
-      "kavlan-18": "2001:660:4406:8a0:805:0::2c",
-      "kavlan-2": "2001:660:4406:881:5:0::2c",
-      "kavlan-20": "2001:660:4406:3a0:805:0::2c",
-      "kavlan-21": "2001:660:4406:6a0:805:0::2c",
-      "kavlan-3": "2001:660:4406:882:5:0::2c",
-      "kavlan-4": "2001:660:4406:890:5:0::2c",
-      "kavlan-5": "2001:660:4406:891:5:0::2c",
-      "kavlan-6": "2001:660:4406:892:5:0::2c",
-      "kavlan-7": "2001:660:4406:893:5:0::2c",
-      "kavlan-8": "2001:660:4406:894:5:0::2c",
-      "kavlan-9": "2001:660:4406:895:5:0::2c"
+      "kavlan-1": "2001:660:4406:880:5::2c",
+      "kavlan-11": "2001:660:4406:1a0:805::2c",
+      "kavlan-12": "2001:660:4406:2a0:805::2c",
+      "kavlan-13": "2001:660:4406:4a0:805::2c",
+      "kavlan-14": "2001:660:4406:5a0:805::2c",
+      "kavlan-16": "2001:660:4406:7a0:805::2c",
+      "kavlan-18": "2001:660:4406:8a0:805::2c",
+      "kavlan-2": "2001:660:4406:881:5::2c",
+      "kavlan-20": "2001:660:4406:3a0:805::2c",
+      "kavlan-21": "2001:660:4406:6a0:805::2c",
+      "kavlan-3": "2001:660:4406:882:5::2c",
+      "kavlan-4": "2001:660:4406:890:5::2c",
+      "kavlan-5": "2001:660:4406:891:5::2c",
+      "kavlan-6": "2001:660:4406:892:5::2c",
+      "kavlan-7": "2001:660:4406:893:5::2c",
+      "kavlan-8": "2001:660:4406:894:5::2c",
+      "kavlan-9": "2001:660:4406:895:5::2c"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.44",
-      "ip6": "2001:660:4406:800:5:0::2c",
+      "ip6": "2001:660:4406:800:5::2c",
       "kavlan": true,
       "mac": "00:26:6c:f8:33:38",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-5.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-5.json
index 6b6b285a26ff2c5cce21d5a08926a74e32653920..30b2ae8c98f7f1f716d3bd66177bc8212f1e19ca 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-5.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::5",
-      "kavlan-11": "2001:660:4406:1a0:805:0::5",
-      "kavlan-12": "2001:660:4406:2a0:805:0::5",
-      "kavlan-13": "2001:660:4406:4a0:805:0::5",
-      "kavlan-14": "2001:660:4406:5a0:805:0::5",
-      "kavlan-16": "2001:660:4406:7a0:805:0::5",
-      "kavlan-18": "2001:660:4406:8a0:805:0::5",
-      "kavlan-2": "2001:660:4406:881:5:0::5",
-      "kavlan-20": "2001:660:4406:3a0:805:0::5",
-      "kavlan-21": "2001:660:4406:6a0:805:0::5",
-      "kavlan-3": "2001:660:4406:882:5:0::5",
-      "kavlan-4": "2001:660:4406:890:5:0::5",
-      "kavlan-5": "2001:660:4406:891:5:0::5",
-      "kavlan-6": "2001:660:4406:892:5:0::5",
-      "kavlan-7": "2001:660:4406:893:5:0::5",
-      "kavlan-8": "2001:660:4406:894:5:0::5",
-      "kavlan-9": "2001:660:4406:895:5:0::5"
+      "kavlan-1": "2001:660:4406:880:5::5",
+      "kavlan-11": "2001:660:4406:1a0:805::5",
+      "kavlan-12": "2001:660:4406:2a0:805::5",
+      "kavlan-13": "2001:660:4406:4a0:805::5",
+      "kavlan-14": "2001:660:4406:5a0:805::5",
+      "kavlan-16": "2001:660:4406:7a0:805::5",
+      "kavlan-18": "2001:660:4406:8a0:805::5",
+      "kavlan-2": "2001:660:4406:881:5::5",
+      "kavlan-20": "2001:660:4406:3a0:805::5",
+      "kavlan-21": "2001:660:4406:6a0:805::5",
+      "kavlan-3": "2001:660:4406:882:5::5",
+      "kavlan-4": "2001:660:4406:890:5::5",
+      "kavlan-5": "2001:660:4406:891:5::5",
+      "kavlan-6": "2001:660:4406:892:5::5",
+      "kavlan-7": "2001:660:4406:893:5::5",
+      "kavlan-8": "2001:660:4406:894:5::5",
+      "kavlan-9": "2001:660:4406:895:5::5"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.5",
-      "ip6": "2001:660:4406:800:5:0::5",
+      "ip6": "2001:660:4406:800:5::5",
       "kavlan": true,
       "mac": "00:26:6c:f8:58:70",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-6.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-6.json
index 016e6018d662ccf1ad9e9fcb9edf11efb40b3e03..e2baaa71439a5b8f271affb656a5478cda4f9b0e 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-6.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::6",
-      "kavlan-11": "2001:660:4406:1a0:805:0::6",
-      "kavlan-12": "2001:660:4406:2a0:805:0::6",
-      "kavlan-13": "2001:660:4406:4a0:805:0::6",
-      "kavlan-14": "2001:660:4406:5a0:805:0::6",
-      "kavlan-16": "2001:660:4406:7a0:805:0::6",
-      "kavlan-18": "2001:660:4406:8a0:805:0::6",
-      "kavlan-2": "2001:660:4406:881:5:0::6",
-      "kavlan-20": "2001:660:4406:3a0:805:0::6",
-      "kavlan-21": "2001:660:4406:6a0:805:0::6",
-      "kavlan-3": "2001:660:4406:882:5:0::6",
-      "kavlan-4": "2001:660:4406:890:5:0::6",
-      "kavlan-5": "2001:660:4406:891:5:0::6",
-      "kavlan-6": "2001:660:4406:892:5:0::6",
-      "kavlan-7": "2001:660:4406:893:5:0::6",
-      "kavlan-8": "2001:660:4406:894:5:0::6",
-      "kavlan-9": "2001:660:4406:895:5:0::6"
+      "kavlan-1": "2001:660:4406:880:5::6",
+      "kavlan-11": "2001:660:4406:1a0:805::6",
+      "kavlan-12": "2001:660:4406:2a0:805::6",
+      "kavlan-13": "2001:660:4406:4a0:805::6",
+      "kavlan-14": "2001:660:4406:5a0:805::6",
+      "kavlan-16": "2001:660:4406:7a0:805::6",
+      "kavlan-18": "2001:660:4406:8a0:805::6",
+      "kavlan-2": "2001:660:4406:881:5::6",
+      "kavlan-20": "2001:660:4406:3a0:805::6",
+      "kavlan-21": "2001:660:4406:6a0:805::6",
+      "kavlan-3": "2001:660:4406:882:5::6",
+      "kavlan-4": "2001:660:4406:890:5::6",
+      "kavlan-5": "2001:660:4406:891:5::6",
+      "kavlan-6": "2001:660:4406:892:5::6",
+      "kavlan-7": "2001:660:4406:893:5::6",
+      "kavlan-8": "2001:660:4406:894:5::6",
+      "kavlan-9": "2001:660:4406:895:5::6"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.6",
-      "ip6": "2001:660:4406:800:5:0::6",
+      "ip6": "2001:660:4406:800:5::6",
       "kavlan": true,
       "mac": "00:26:6c:f8:33:d0",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-7.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-7.json
index 3f7c431d86d831e688bf4f2aa61f79a64a562992..7bc443e07d91738075dc166041b0daba8cd1fff7 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-7.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::7",
-      "kavlan-11": "2001:660:4406:1a0:805:0::7",
-      "kavlan-12": "2001:660:4406:2a0:805:0::7",
-      "kavlan-13": "2001:660:4406:4a0:805:0::7",
-      "kavlan-14": "2001:660:4406:5a0:805:0::7",
-      "kavlan-16": "2001:660:4406:7a0:805:0::7",
-      "kavlan-18": "2001:660:4406:8a0:805:0::7",
-      "kavlan-2": "2001:660:4406:881:5:0::7",
-      "kavlan-20": "2001:660:4406:3a0:805:0::7",
-      "kavlan-21": "2001:660:4406:6a0:805:0::7",
-      "kavlan-3": "2001:660:4406:882:5:0::7",
-      "kavlan-4": "2001:660:4406:890:5:0::7",
-      "kavlan-5": "2001:660:4406:891:5:0::7",
-      "kavlan-6": "2001:660:4406:892:5:0::7",
-      "kavlan-7": "2001:660:4406:893:5:0::7",
-      "kavlan-8": "2001:660:4406:894:5:0::7",
-      "kavlan-9": "2001:660:4406:895:5:0::7"
+      "kavlan-1": "2001:660:4406:880:5::7",
+      "kavlan-11": "2001:660:4406:1a0:805::7",
+      "kavlan-12": "2001:660:4406:2a0:805::7",
+      "kavlan-13": "2001:660:4406:4a0:805::7",
+      "kavlan-14": "2001:660:4406:5a0:805::7",
+      "kavlan-16": "2001:660:4406:7a0:805::7",
+      "kavlan-18": "2001:660:4406:8a0:805::7",
+      "kavlan-2": "2001:660:4406:881:5::7",
+      "kavlan-20": "2001:660:4406:3a0:805::7",
+      "kavlan-21": "2001:660:4406:6a0:805::7",
+      "kavlan-3": "2001:660:4406:882:5::7",
+      "kavlan-4": "2001:660:4406:890:5::7",
+      "kavlan-5": "2001:660:4406:891:5::7",
+      "kavlan-6": "2001:660:4406:892:5::7",
+      "kavlan-7": "2001:660:4406:893:5::7",
+      "kavlan-8": "2001:660:4406:894:5::7",
+      "kavlan-9": "2001:660:4406:895:5::7"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.7",
-      "ip6": "2001:660:4406:800:5:0::7",
+      "ip6": "2001:660:4406:800:5::7",
       "kavlan": true,
       "mac": "00:26:6c:f8:39:00",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-8.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-8.json
index c7bbdb6ea2ee7de4b0c42fff55d63194f80b9d8c..0de7911f05e3aeb379e7a96a2d4c9c2d88f89f9b 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-8.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::8",
-      "kavlan-11": "2001:660:4406:1a0:805:0::8",
-      "kavlan-12": "2001:660:4406:2a0:805:0::8",
-      "kavlan-13": "2001:660:4406:4a0:805:0::8",
-      "kavlan-14": "2001:660:4406:5a0:805:0::8",
-      "kavlan-16": "2001:660:4406:7a0:805:0::8",
-      "kavlan-18": "2001:660:4406:8a0:805:0::8",
-      "kavlan-2": "2001:660:4406:881:5:0::8",
-      "kavlan-20": "2001:660:4406:3a0:805:0::8",
-      "kavlan-21": "2001:660:4406:6a0:805:0::8",
-      "kavlan-3": "2001:660:4406:882:5:0::8",
-      "kavlan-4": "2001:660:4406:890:5:0::8",
-      "kavlan-5": "2001:660:4406:891:5:0::8",
-      "kavlan-6": "2001:660:4406:892:5:0::8",
-      "kavlan-7": "2001:660:4406:893:5:0::8",
-      "kavlan-8": "2001:660:4406:894:5:0::8",
-      "kavlan-9": "2001:660:4406:895:5:0::8"
+      "kavlan-1": "2001:660:4406:880:5::8",
+      "kavlan-11": "2001:660:4406:1a0:805::8",
+      "kavlan-12": "2001:660:4406:2a0:805::8",
+      "kavlan-13": "2001:660:4406:4a0:805::8",
+      "kavlan-14": "2001:660:4406:5a0:805::8",
+      "kavlan-16": "2001:660:4406:7a0:805::8",
+      "kavlan-18": "2001:660:4406:8a0:805::8",
+      "kavlan-2": "2001:660:4406:881:5::8",
+      "kavlan-20": "2001:660:4406:3a0:805::8",
+      "kavlan-21": "2001:660:4406:6a0:805::8",
+      "kavlan-3": "2001:660:4406:882:5::8",
+      "kavlan-4": "2001:660:4406:890:5::8",
+      "kavlan-5": "2001:660:4406:891:5::8",
+      "kavlan-6": "2001:660:4406:892:5::8",
+      "kavlan-7": "2001:660:4406:893:5::8",
+      "kavlan-8": "2001:660:4406:894:5::8",
+      "kavlan-9": "2001:660:4406:895:5::8"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.8",
-      "ip6": "2001:660:4406:800:5:0::8",
+      "ip6": "2001:660:4406:800:5::8",
       "kavlan": true,
       "mac": "00:26:6c:f8:3a:14",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-9.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-9.json
index 7da861a5a14fe4f3549b7e4318927da0c996334c..3bf56697357bf87a5273ec471b2f4bc6a9aa7338 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-9.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5:0::9",
-      "kavlan-11": "2001:660:4406:1a0:805:0::9",
-      "kavlan-12": "2001:660:4406:2a0:805:0::9",
-      "kavlan-13": "2001:660:4406:4a0:805:0::9",
-      "kavlan-14": "2001:660:4406:5a0:805:0::9",
-      "kavlan-16": "2001:660:4406:7a0:805:0::9",
-      "kavlan-18": "2001:660:4406:8a0:805:0::9",
-      "kavlan-2": "2001:660:4406:881:5:0::9",
-      "kavlan-20": "2001:660:4406:3a0:805:0::9",
-      "kavlan-21": "2001:660:4406:6a0:805:0::9",
-      "kavlan-3": "2001:660:4406:882:5:0::9",
-      "kavlan-4": "2001:660:4406:890:5:0::9",
-      "kavlan-5": "2001:660:4406:891:5:0::9",
-      "kavlan-6": "2001:660:4406:892:5:0::9",
-      "kavlan-7": "2001:660:4406:893:5:0::9",
-      "kavlan-8": "2001:660:4406:894:5:0::9",
-      "kavlan-9": "2001:660:4406:895:5:0::9"
+      "kavlan-1": "2001:660:4406:880:5::9",
+      "kavlan-11": "2001:660:4406:1a0:805::9",
+      "kavlan-12": "2001:660:4406:2a0:805::9",
+      "kavlan-13": "2001:660:4406:4a0:805::9",
+      "kavlan-14": "2001:660:4406:5a0:805::9",
+      "kavlan-16": "2001:660:4406:7a0:805::9",
+      "kavlan-18": "2001:660:4406:8a0:805::9",
+      "kavlan-2": "2001:660:4406:881:5::9",
+      "kavlan-20": "2001:660:4406:3a0:805::9",
+      "kavlan-21": "2001:660:4406:6a0:805::9",
+      "kavlan-3": "2001:660:4406:882:5::9",
+      "kavlan-4": "2001:660:4406:890:5::9",
+      "kavlan-5": "2001:660:4406:891:5::9",
+      "kavlan-6": "2001:660:4406:892:5::9",
+      "kavlan-7": "2001:660:4406:893:5::9",
+      "kavlan-8": "2001:660:4406:894:5::9",
+      "kavlan-9": "2001:660:4406:895:5::9"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.9",
-      "ip6": "2001:660:4406:800:5:0::9",
+      "ip6": "2001:660:4406:800:5::9",
       "kavlan": true,
       "mac": "00:26:6c:f8:3e:9c",
       "management": false,
diff --git a/data/grid5000/sites/sophia/sophia.json b/data/grid5000/sites/sophia/sophia.json
index a048088d9b05e0861f1bc3f0640f0c02c1541aa4..0bef1b64e56d6a1d63d1826c93d809e45e312e16 100644
--- a/data/grid5000/sites/sophia/sophia.json
+++ b/data/grid5000/sites/sophia/sophia.json
@@ -8,7 +8,7 @@
     "network": "10.164.0.0/14"
   },
   "ipv6": {
-    "prefix": "2001:660:4406:08",
+    "prefix": "2001:660:4406:800::/56",
     "site_global_kavlan": 18,
     "site_index": 8
   },
diff --git a/input/grid5000/ipv6.yaml b/input/grid5000/ipv6.yaml
index 3cca36ab67052bbb5d35fe4d6de77079883653a8..511d3bcc0b1566babf7a74d45e415ec6b938db1d 100644
--- a/input/grid5000/ipv6.yaml
+++ b/input/grid5000/ipv6.yaml
@@ -1,6 +1,6 @@
 ---
 ipv6:
-  prefix: '2001:660:4406'
+  prefix: '2001:660:4406::/48'
   site_indexes:
     grenoble: 1
     lille: 2
diff --git a/lib/refrepo/input_loader.rb b/lib/refrepo/input_loader.rb
index b4e8a3cbf1ed4e0125269781ba7687fc59dd9459..23a9a229b6b5e22b9c4e798c9c25c01abb8ee603 100644
--- a/lib/refrepo/input_loader.rb
+++ b/lib/refrepo/input_loader.rb
@@ -1,5 +1,6 @@
 # Load a hierarchy of YAML file into a Ruby hash
 
+require 'ipaddress'
 require 'refrepo/hash/hash'
 require 'refrepo/gen/reference-api'
 
@@ -48,15 +49,15 @@ def load_yaml_file_hierarchy(directory = File.expand_path("../../input/grid5000/
 
 #  pp global_hash
 
+  # add some ipv6 informations in sites
+  add_site_ipv6_infos(global_hash)
+
   # populate each node with its IPv6
   add_ipv6(global_hash)
 
   # populate each node with its IPv4 addresses
   add_ipv4(global_hash)
 
-  # add some ipv6 informations in sites
-  add_site_ipv6_infos(global_hash)
-
   # populate each node with its kavlan IPs
   add_kavlan_ips(global_hash)
   add_kavlan_ipv6s(global_hash)
@@ -155,6 +156,7 @@ end
 def add_ipv6(h)
   # for each node
   h['sites'].each_pair do |site_uid, hs|
+    site_prefix = IPAddress hs['ipv6']['prefix']
     hs['clusters'].each_pair do |cluster_uid, hc|
       hc['nodes'].each_pair do |node_uid, hn|
         ipv6_adapters = hn['network_adapters'].select { |_k,v| v['mountable'] and v['interface'] == 'Ethernet' }
@@ -165,13 +167,12 @@ def add_ipv6(h)
           ip4 = ipv6_adapters.values[0]['ip']
           ipv6_adapters.each_with_index do |(_iface, nah), idx|
             # compute and assign IPv6 based on IPv4 of the first adapter
-            ip6 = h['ipv6']['prefix'] + ':'
-            ip6 += '%x' % h['ipv6']['site_indexes'][site_uid]
-            ip6 += '00:'
-            ip6 += '%x' % ((ip4.split('.')[2].to_i & 0b1111) + 1)
-            ip6 += ':%x::' % idx
-            ip6 += '%x' % (ip4.split('.')[3].to_i)
-            nah['ip6'] = ip6
+            ip6 = IPAddress site_prefix.to_string
+            ip6.prefix = 64
+            ip6[4] = (ip4.split('.')[2].to_i & 0b1111) + 1
+            ip6[5] = idx
+            ip6[7] = ip4.split('.')[3].to_i
+            nah['ip6'] = ip6.compressed
           end
         end
       end
@@ -200,27 +201,23 @@ def add_kavlan_ipv6s(h)
             hn['kavlan6'][iface] = {}
             hn['kavlan'][iface].each_key do |kvl|
               kvl_id = kvl.split('-')[1].to_i
-              ip6 = h['ipv6']['prefix'] + ':'
+              ip6 = IPAddress hs['ipv6']['prefix']
               case kvl_id
               when 1..3 # local non-routed
-                ip6 += '%x' % h['ipv6']['site_indexes'][site_uid]
-                ip6 += '%x:' % (kvl_id + 0x80 - 1)
+                ip6[3] |= (kvl_id + 0x80 - 1)
               when 4..9 # local routed
-                ip6 += '%x' % h['ipv6']['site_indexes'][site_uid]
-                ip6 += '%x:' % (kvl_id + 0x90 - 4)
+                ip6[3] |= (kvl_id + 0x90 - 4)
               else      # global
-                ip6 += '%xa0:' % h['ipv6']['site_indexes'][global_vlan_site[kvl_id]] # no matter what, the gw is always on the global kavlan's site
-              end
-              if kvl_id > 9
+                # The prefix is based on the site of the global kavlan, not the site of the node
+                ip6[3] = h['ipv6']['site_indexes'][global_vlan_site[kvl_id]] << 8
+                ip6[3] |= 0xA0
                 # global kavlan: set most signicant octet of interface part to site index
-                ip6 += '%x' % h['ipv6']['site_indexes'][site_uid]
-                ip6 += '%02x' % ((ip4.split('.')[2].to_i & 0b1111) + 1)
-              else
-                ip6 += '%x' % ((ip4.split('.')[2].to_i & 0b1111) + 1)
+                ip6[4] = h['ipv6']['site_indexes'][site_uid] << 8
               end
-              ip6 += ':%x::' % idx
-              ip6 += '%x' % (ip4.split('.')[3].to_i)
-              hn['kavlan6'][iface]["kavlan-#{kvl_id}"] = ip6
+              ip6[4] |= (ip4.split('.')[2].to_i & 0b1111) + 1
+              ip6[5] = idx
+              ip6[7] = ip4.split('.')[3].to_i
+              hn['kavlan6'][iface]["kavlan-#{kvl_id}"] = ip6.compressed
             end
           end
         end
@@ -317,9 +314,14 @@ def add_theorical_flops(h)
 end
 
 def add_site_ipv6_infos(h)
+  global_prefix = IPAddress h['ipv6']['prefix']
   h['sites'].each_pair do |site_uid, hs|
+    site_prefix = IPAddress global_prefix.to_string
+    # Site index is third group of nibbles, but on the MSB side
+    site_prefix[3] = h['ipv6']['site_indexes'][site_uid] << 8
+    site_prefix.prefix = 56
     h['sites'][site_uid]['ipv6'] = {}
-    h['sites'][site_uid]['ipv6']['prefix'] = h['ipv6']['prefix'] + ":%02x" % (h['ipv6']['site_indexes'][site_uid])
+    h['sites'][site_uid]['ipv6']['prefix'] = site_prefix.to_string
     h['sites'][site_uid]['ipv6']['site_index'] = h['ipv6']['site_indexes'][site_uid]
     h['sites'][site_uid]['ipv6']['site_global_kavlan'] = h['ipv6']['site_global_kavlans'][site_uid]
   end