diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-21.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-21.json
index 3ced57da3e8098e4435971583827c250bc0f2bcb..58f7e02a2cc9f40d9e147a8cd176794c246b4855 100755
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-21.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-21.json
@@ -14,7 +14,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.121",
- "mac": null,
+ "mac": "00:09:3d:12:85:70",
"management": false,
"model": "BCM5704",
"mountable": true,
@@ -28,7 +28,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.21",
- "mac": null,
+ "mac": "00:09:3d:12:85:71",
"management": false,
"model": "BCM5704",
"mountable": true,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-34.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-34.json
index c88090a6b1e554a3540412e185c962801a8913bd..4a20f418708a6e61f0958fbfbeaf6fbe53cf199a 100755
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-34.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-34.json
@@ -14,7 +14,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.134",
- "mac": null,
+ "mac": "00:09:3d:12:a4:ee",
"management": false,
"model": "BCM5704",
"mountable": true,
@@ -28,7 +28,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.34",
- "mac": null,
+ "mac": "00:09:3d:12:a4:ef",
"management": false,
"model": "BCM5704",
"mountable": true,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-40.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-40.json
index e5b2a5d98e877a65d4488adffc4f74c8d68227c9..edf3cade88f98dd718ed9d89c0b5d34fcbbe6dd0 100755
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-40.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-40.json
@@ -14,7 +14,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.140",
- "mac": null,
+ "mac": "00:09:3d:11:5a:30",
"management": false,
"model": "BCM5704",
"mountable": true,
@@ -28,7 +28,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.40",
- "mac": null,
+ "mac": "00:09:3d:11:5a:31",
"management": false,
"model": "BCM5704",
"mountable": true,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-48.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-48.json
index 7656ff4cdd44ef7dfeac7eb47f1918b780b6e68c..062e9bca555ba20b6b58e9e0a0284351155e476b 100755
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-48.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-48.json
@@ -14,7 +14,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.148",
- "mac": null,
+ "mac": "00:09:3d:12:92:f5",
"management": false,
"model": "BCM5704",
"mountable": true,
@@ -28,7 +28,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.48",
- "mac": null,
+ "mac": "00:09:3d:12:92:f6",
"management": false,
"model": "BCM5704",
"mountable": true,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-62.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-62.json
index 7285b68de0a96c20abc0edf5ecad10536f328261..e1db1c748fd14684c44a520fa6c3f60ed2af679a 100755
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-62.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-62.json
@@ -14,7 +14,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.162",
- "mac": null,
+ "mac": "00:09:3d:12:70:5a",
"management": false,
"model": "BCM5704",
"mountable": true,
@@ -28,7 +28,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.62",
- "mac": null,
+ "mac": "00:09:3d:12:70:5b",
"management": false,
"model": "BCM5704",
"mountable": true,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-67.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-67.json
index 61c6f32ed6873d5d93f9310de344b31f0145c765..d640c3d8a8ad20f8d4d5222e3a0c6acf976e8e9a 100755
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-67.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-67.json
@@ -14,7 +14,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.167",
- "mac": null,
+ "mac": "00:09:3d:12:28:a9",
"management": false,
"model": "BCM5704",
"mountable": true,
@@ -28,7 +28,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.67",
- "mac": null,
+ "mac": "00:09:3d:12:28:aa",
"management": false,
"model": "BCM5704",
"mountable": true,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-69.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-69.json
index 8f0c67beec51f5aa4a3660d7e646752d73afa87a..71178695648809154a3f52db2faf6cb6639316df 100755
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-69.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-69.json
@@ -14,7 +14,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.169",
- "mac": null,
+ "mac": "00:09:3d:12:40:a1",
"management": false,
"model": "BCM5704",
"mountable": true,
@@ -28,7 +28,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.69",
- "mac": null,
+ "mac": "00:09:3d:12:40:a2",
"management": false,
"model": "BCM5704",
"mountable": true,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-70.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-70.json
index 454a7e6a3e1023e1f33c4fb92585358ff9786638..4875976875a64ad8c12086c1da02ad4a820ebdaf 100755
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-70.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-70.json
@@ -14,7 +14,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.170",
- "mac": null,
+ "mac": "00:09:3d:11:ea:28",
"management": false,
"model": "BCM5704",
"mountable": true,
@@ -28,7 +28,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.70",
- "mac": null,
+ "mac": "00:09:3d:11:ea:29",
"management": false,
"model": "BCM5704",
"mountable": true,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-75.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-75.json
index bbefbdb6dd92a53c847156ebafa9c74d04a15bf7..ba49d143a69e5875d81dbd686e0a2b27ce0b547f 100755
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-75.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-75.json
@@ -14,7 +14,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.175",
- "mac": null,
+ "mac": "00:09:3d:11:95:21",
"management": false,
"model": "BCM5704",
"mountable": true,
@@ -28,7 +28,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.75",
- "mac": null,
+ "mac": "00:09:3d:11:95:22",
"management": false,
"model": "BCM5704",
"mountable": true,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-76.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-76.json
index 0aaa39563221a64f5409f8691898577ba8d26a85..475bed388c5a4e523365046a142b6bb4f391dd1a 100755
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-76.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-76.json
@@ -14,7 +14,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.176",
- "mac": null,
+ "mac": "00:09:3d:11:c5:1f",
"management": false,
"model": "BCM5704",
"mountable": true,
@@ -28,7 +28,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.76",
- "mac": null,
+ "mac": "00:09:3d:11:c5:20",
"management": false,
"model": "BCM5704",
"mountable": true,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-8.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-8.json
index bfbfc34e14c1339b22e5f86fa2ed0e0a3652a8de..43332d5f7da32112607d4a0874c3e5cee7ffbde0 100755
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-8.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-8.json
@@ -14,7 +14,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.108",
- "mac": null,
+ "mac": "00:09:3d:12:6b:0e",
"management": false,
"model": "BCM5704",
"mountable": true,
@@ -28,7 +28,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.8",
- "mac": null,
+ "mac": "00:09:3d:12:6b:0f",
"management": false,
"model": "BCM5704",
"mountable": true,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-9.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-9.json
index b752603ec543cb3011810ec78b9249eb29edaf9a..3bdd65d3e349a5238fa9f1b97fabff2d789d69b3 100755
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-9.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-9.json
@@ -14,7 +14,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.109",
- "mac": null,
+ "mac": "00:09:3d:12:7f:da",
"management": false,
"model": "BCM5704",
"mountable": true,
@@ -28,7 +28,7 @@
"enabled": true,
"interface": "Ethernet",
"ip": "10.69.1.9",
- "mac": null,
+ "mac": "00:09:3d:12:7f:db",
"management": false,
"model": "BCM5704",
"mountable": true,