diff --git a/data/grid5000/sites/grenoble/servers/srv-data3.json b/data/grid5000/sites/grenoble/servers/srv-data3.json
index 725a9d98cbfbd6e51d0bdfebaf49a078a2e8781c..f1a0a750d7447c70b60ca257c7be117ee20ede5c 100644
--- a/data/grid5000/sites/grenoble/servers/srv-data3.json
+++ b/data/grid5000/sites/grenoble/servers/srv-data3.json
@@ -13,7 +13,7 @@
     },
     "default": {
       "ip": "172.16.31.17",
-      "mac": "30:3E:A7:05:F2:80"
+      "mac": "30:3E:A7:05:F2:81"
     }
   },
   "redfish": true,
diff --git a/input/grid5000/sites/grenoble/servers/physical.yaml b/input/grid5000/sites/grenoble/servers/physical.yaml
index 958f7ae76f8abbd39fa5824926b1478b51bceec7..8c51a2ea55767f4aebaebbcaa33d59d01b080b6c 100644
--- a/input/grid5000/sites/grenoble/servers/physical.yaml
+++ b/input/grid5000/sites/grenoble/servers/physical.yaml
@@ -141,7 +141,7 @@ srv-data3:
   network_adapters:
     default:
       ip: 172.16.31.17
-      mac: 30:3E:A7:05:F2:80
+      mac: 30:3E:A7:05:F2:81
     bmc:
       ip: 172.17.30.17
       mac: 5C:ED:8C:F4:A2:22