diff --git a/data/grid5000/sites/grenoble/servers/digsed.json b/data/grid5000/sites/grenoble/servers/digsed.json
index eb05ecb00099c130ccb1ccf0d40aa0b6c751c993..88852064e9c00dc0f69b6922f289656ed618655c 100644
--- a/data/grid5000/sites/grenoble/servers/digsed.json
+++ b/data/grid5000/sites/grenoble/servers/digsed.json
@@ -11,7 +11,8 @@
       "ip": "172.17.30.4"
     },
     "default": {
-      "ip": "172.16.31.4"
+      "ip": "172.16.31.4",
+      "mac": "EC:F4:BB:CF:C2:98"
     }
   },
   "redfish": true,
diff --git a/data/grid5000/sites/grenoble/servers/digwatt.json b/data/grid5000/sites/grenoble/servers/digwatt.json
index df5a4dfbf0fee1f659c846779dc63efe51c83069..afc81fa8c32ca72ee4145a1209eb537d7e53103e 100644
--- a/data/grid5000/sites/grenoble/servers/digwatt.json
+++ b/data/grid5000/sites/grenoble/servers/digwatt.json
@@ -11,7 +11,8 @@
       "ip": "172.17.30.9"
     },
     "default": {
-      "ip": "172.16.31.9"
+      "ip": "172.16.31.9",
+      "mac": "F8:F2:1E:23:EF:20"
     }
   },
   "redfish": true,
diff --git a/data/grid5000/sites/grenoble/servers/pneyron-spack-vm.json b/data/grid5000/sites/grenoble/servers/pneyron-spack-vm.json
deleted file mode 100644
index c5075a92c9fb8566381c4f7cd62c01a0864569af..0000000000000000000000000000000000000000
--- a/data/grid5000/sites/grenoble/servers/pneyron-spack-vm.json
+++ /dev/null
@@ -1,11 +0,0 @@
-{
-  "expire": "2024-03",
-  "kind": "virtual",
-  "network_adapters": {
-    "default": {
-      "ip": "172.16.29.1"
-    }
-  },
-  "type": "server",
-  "uid": "pneyron-spack-vm"
-}
\ No newline at end of file
diff --git a/input/grid5000/sites/grenoble/servers/physical.yaml b/input/grid5000/sites/grenoble/servers/physical.yaml
index b237cf88c8f2bbe7761b4ea4b562c31ce2e1177c..2bc53dc78b794f7da63773e81130f1666e42bbf5 100644
--- a/input/grid5000/sites/grenoble/servers/physical.yaml
+++ b/input/grid5000/sites/grenoble/servers/physical.yaml
@@ -7,6 +7,7 @@ digsed:
   network_adapters:
     default:
       ip: 172.16.31.4
+      mac: EC:F4:BB:CF:C2:98
     adm:
       ip: 172.17.31.4
     bmc:
@@ -50,6 +51,7 @@ digwatt:
   network_adapters:
     default:
       ip: 172.16.31.9
+      mac: F8:F2:1E:23:EF:20
     bmc:
       ip: 172.17.30.9
     adm:
diff --git a/input/grid5000/sites/grenoble/servers/user-machines.yaml b/input/grid5000/sites/grenoble/servers/user-machines.yaml
index 749c2c03c090c6d5e07b82a9a1ea02c082be7e2b..852c045f09f380f1017afa609cbcf2286674e2cf 100644
--- a/input/grid5000/sites/grenoble/servers/user-machines.yaml
+++ b/input/grid5000/sites/grenoble/servers/user-machines.yaml
@@ -1,8 +1,3 @@
-pneyron-spack-vm:
-  kind: virtual
-  expire: 2024-03
-  network_adapters: {default: {ip: 172.16.29.1}}
-
 orichard-nix-datamove:
   kind: physical
   alias: [nix-datamove]