diff --git a/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-1.json b/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-1.json
index 226790ad495be60a22c94459b8aab3a40e4049b7..a5e38c409823aa3f30ab7fa210758557bea7e5f9 100644
--- a/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-1.json
+++ b/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-1.json
@@ -49,7 +49,7 @@
       "interface": "Ethernet",
       "ip": "172.17.32.1",
       "kavlan": false,
-      "mac": "b4:7a:f1:c1:42:c8",
+      "mac": "b4:7a:f1:c5:62:b3",
       "management": true,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-2.json b/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-2.json
index 4dade6f903294ae608c9bd9a44596acebcef9888..9b002ed101ba7fcf8985601c86e281992be92c89 100644
--- a/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-2.json
+++ b/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-2.json
@@ -49,7 +49,7 @@
       "interface": "Ethernet",
       "ip": "172.17.32.2",
       "kavlan": false,
-      "mac": "b4:7a:f1:c1:72:66",
+      "mac": "b4:7a:f1:c5:62:3b",
       "management": true,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-3.json b/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-3.json
index 3fd122e5aca8653d474b03a5e22de12151fa3ee1..9db8c5a47be8565103a1d5eb2262addc60fbc084 100644
--- a/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-3.json
+++ b/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-3.json
@@ -28,7 +28,7 @@
       "ip": "172.16.32.3",
       "ip6": "2001:660:4406:200:1::3",
       "kavlan": false,
-      "mac": "b4:7a:f1:c1:42:cc",
+      "mac": "b4:7a:f1:c5:62:cc",
       "mountable": true,
       "mounted": true,
       "network_address": "chuc-3.lille.grid5000.fr",
@@ -49,7 +49,7 @@
       "interface": "Ethernet",
       "ip": "172.17.32.3",
       "kavlan": false,
-      "mac": "b4:7a:f1:c1:72:3a",
+      "mac": "b4:7a:f1:c5:62:0d",
       "management": true,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-4.json b/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-4.json
index edbcf2442148039db1da41b5f7a6782478d35cd9..10a03abd9076be0c19afa10a5c60bd38c03e124d 100644
--- a/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-4.json
+++ b/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-4.json
@@ -49,7 +49,7 @@
       "interface": "Ethernet",
       "ip": "172.17.32.4",
       "kavlan": false,
-      "mac": "b4:7a:f1:c1:72:4c",
+      "mac": "b4:7a:f1:c5:62:1d",
       "management": true,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-5.json b/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-5.json
index 149d8c7ddd942cef33f1af7049f351dc23de1769..669afcf88e63f0bf61d470b63f88e189e4587dcb 100644
--- a/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-5.json
+++ b/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-5.json
@@ -49,7 +49,7 @@
       "interface": "Ethernet",
       "ip": "172.17.32.5",
       "kavlan": false,
-      "mac": "b4:7a:f1:54:1f:74",
+      "mac": "b4:7a:f1:be:90:d3",
       "management": true,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-6.json b/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-6.json
index da8a0aef171638f7d6cc8f0c7f2b70eeea75e6e4..298934c15a9ff8f018bcd9d66310110a05592303 100644
--- a/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-6.json
+++ b/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-6.json
@@ -49,7 +49,7 @@
       "interface": "Ethernet",
       "ip": "172.17.32.6",
       "kavlan": false,
-      "mac": "b4:7a:f1:c1:72:8a",
+      "mac": "b4:7a:f1:c5:62:59",
       "management": true,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-7.json b/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-7.json
index 72603221b30fdd10d218a3a1c35c80b0629dfc8a..6e488264c9f758deca7420ab0ec7eeca381eb662 100644
--- a/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-7.json
+++ b/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-7.json
@@ -49,7 +49,7 @@
       "interface": "Ethernet",
       "ip": "172.17.32.7",
       "kavlan": false,
-      "mac": "b4:7a:f1:c1:72:80",
+      "mac": "b4:7a:f1:c5:62:6b",
       "management": true,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-8.json b/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-8.json
index e11596ddafd2f2bda39308c016abb8bc5e580754..9b6609c3ad6af88c6fd349d2a570fd40dd9cd51b 100644
--- a/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-8.json
+++ b/data/grid5000/sites/lille/clusters/chuc/nodes/chuc-8.json
@@ -49,7 +49,7 @@
       "interface": "Ethernet",
       "ip": "172.17.32.8",
       "kavlan": false,
-      "mac": "b4:7a:f1:be:de:6a",
+      "mac": "b4:7a:f1:c0:2b:a1",
       "management": true,
       "mountable": false,
       "mounted": false,
diff --git a/input/grid5000/sites/lille/clusters/chuc/chuc.yaml b/input/grid5000/sites/lille/clusters/chuc/chuc.yaml
index b423f80f7eafb94a035dd83c84e8ae34d191b808..7c6cd5ac738d253fc842b858eb98e281319256d6 100644
--- a/input/grid5000/sites/lille/clusters/chuc/chuc.yaml
+++ b/input/grid5000/sites/lille/clusters/chuc/chuc.yaml
@@ -67,7 +67,7 @@ nodes:
   chuc-1:
     network_adapters:
        bmc:
-         mac: b4:7a:f1:c1:42:c8
+         mac: b4:7a:f1:c5:62:b3
          ip: 172.17.32.1
        eth0:
          mac: b4:7a:f1:c1:42:aa
@@ -75,7 +75,7 @@ nodes:
   chuc-2:
     network_adapters:
        bmc:
-         mac: b4:7a:f1:c1:72:66
+         mac: b4:7a:f1:c5:62:3b
          ip: 172.17.32.2
        eth0:
          mac: b4:7a:f1:c1:42:bb
@@ -83,15 +83,15 @@ nodes:
   chuc-3:
     network_adapters:
        bmc:
-         mac: b4:7a:f1:c1:72:3a
+         mac: b4:7a:f1:c5:62:0d
          ip: 172.17.32.3
        eth0:
-         mac: b4:7a:f1:c1:42:cc
+         mac: b4:7a:f1:c5:62:cc
          ip: 172.16.32.3
   chuc-4:
     network_adapters:
        bmc:
-         mac: b4:7a:f1:c1:72:4c
+         mac: b4:7a:f1:c5:62:1d
          ip: 172.17.32.4
        eth0:
          mac: b4:7a:f1:c1:42:dd
@@ -99,7 +99,7 @@ nodes:
   chuc-5:
     network_adapters:
        bmc:
-         mac: b4:7a:f1:54:1f:74
+         mac: b4:7a:f1:be:90:d3
          ip: 172.17.32.5
        eth0:
          mac: b4:7a:f1:c1:42:ee
@@ -107,7 +107,7 @@ nodes:
   chuc-6:
     network_adapters:
        bmc:
-         mac: b4:7a:f1:c1:72:8a
+         mac: b4:7a:f1:c5:62:59
          ip: 172.17.32.6
        eth0:
          mac: b4:7a:f1:c1:42:ff
@@ -115,7 +115,7 @@ nodes:
   chuc-7:
     network_adapters:
        bmc:
-         mac: b4:7a:f1:c1:72:80
+         mac: b4:7a:f1:c5:62:6b
          ip: 172.17.32.7
        eth0:
          mac: b4:7a:f1:c1:42:gg
@@ -123,7 +123,7 @@ nodes:
   chuc-8:
     network_adapters:
        bmc:
-         mac: b4:7a:f1:be:de:6a
+         mac: b4:7a:f1:c0:2b:a1
          ip: 172.17.32.8
        eth0:
          mac: b4:7a:f1:c1:42:hh