diff --git a/data/grid5000/sites/lille/clusters/chimint/nodes/chimint-4.json b/data/grid5000/sites/lille/clusters/chimint/nodes/chimint-4.json
index 31cf9532b70e15e1e34b3adf0819b99d5c762ac1..053f94ecb7c978b4cd3874e38f67958b53aff311 100644
--- a/data/grid5000/sites/lille/clusters/chimint/nodes/chimint-4.json
+++ b/data/grid5000/sites/lille/clusters/chimint/nodes/chimint-4.json
@@ -32,8 +32,8 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.16.33.4",
-      "ip6": "fe80::862b:2bff:fe70:c621",
-      "mac": "84:2b:2b:70:cc:89",
+      "ip6": "fe80::862b:2bff:fe48:3143",
+      "mac": "84:2b:2b:48:31:43",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -50,7 +50,7 @@
       "driver": "bnx2",
       "enabled": true,
       "interface": "Ethernet",
-      "mac": "84:2b:2b:70:cc:8a",
+      "mac": "84:2b:2b:48:31:44",
       "management": false,
       "mountable": true,
       "mounted": false,
@@ -63,7 +63,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.17.33.104",
-      "mac": "84:2b:2b:70:cc:8b",
+      "mac": "84:2b:2b:48:31:45",
       "management": true,
       "mountable": false,
       "mounted": false,
diff --git a/generators/input/sites/lille/clusters/chimint/nodes/chimint-4.yaml b/generators/input/sites/lille/clusters/chimint/nodes/chimint-4.yaml
index 4b231bcc693561840d7ea0e59cb3fe5265cfea07..f4ca39e239cac776e57eb2530a281184600f351e 100644
--- a/generators/input/sites/lille/clusters/chimint/nodes/chimint-4.yaml
+++ b/generators/input/sites/lille/clusters/chimint/nodes/chimint-4.yaml
@@ -8,8 +8,8 @@ chimint-4:
     eth0:
       mounted: true
       rate: 1000000000
-      mac: 84:2b:2b:70:cc:89
-      ip6: fe80::862b:2bff:fe70:c621
+      mac: 84:2b:2b:48:31:43
+      ip6: fe80::862b:2bff:fe48:3143
       management: false
       enabled: true
       interface: Ethernet
@@ -19,15 +19,15 @@ chimint-4:
     eth1:
       mounted: false
       rate: 1000000000
-      mac: 84:2b:2b:70:cc:8a
-      ip6: fe80::862b:2bff:fe70:c622
+      mac: 84:2b:2b:48:31:44
+      ip6: fe80::862b:2bff:fe48:3144
       management: false
       enabled: true
       interface: Ethernet
       driver: bnx2
       mountable: true
     bmc:
-      mac: 84:2b:2b:70:cc:8b
+      mac: 84:2b:2b:48:31:45
       ip: 172.17.33.104
   block_devices:
     sda: