diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-109.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-109.json
index e45192fcbdd754d0d3e9cb877c697f41b73a6049..5a91a1aa875bc8d039dfbbb568bc46073b8bda42 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-109.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-109.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.137.1",
-      "mac": "nil",
+      "mac": "00:11:25:C4:53:23",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-110.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-110.json
index c8713bf2d4bd49edef0beb18f25e83cadac4a757..75901726d16ece69dd3b1cb8e5e8267194438e4d 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-110.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-110.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.137.2",
-      "mac": "nil",
+      "mac": "00:11:25:C4:51:A5",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-111.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-111.json
index 6c3b8683afe1bdd7d40681784891693ce10a8734..4313f8a9dd5ad47c2a5c0c8a657395f2aa5b9bff 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-111.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-111.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.137.3",
-      "mac": "nil",
+      "mac": "00:11:25:C4:50:31",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-112.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-112.json
index 7c6b46514644a178dde3529ae37dc49cfbe679d0..0c8d30507261b90a14082b7505012ba5bc43c912 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-112.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-112.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.137.4",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:C7",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-113.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-113.json
index f965c3a6da07fef78d8465b8187746d2720fd123..40223466f8f31f31d5a13f594dbebe1d755c202b 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-113.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-113.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.137.5",
-      "mac": "nil",
+      "mac": "00:11:25:C4:51:49",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-114.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-114.json
index e122f5cd10dc979fdeb0ff03b9bf5d675263cb31..89d9f2c7ca34be4abcaedb3f15f4cc00241f68a4 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-114.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-114.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.137.6",
-      "mac": "nil",
+      "mac": "00:11:25:C4:53:01",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-115.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-115.json
index 2e0c7b78a416ffbb7e249e2348c995754992e807..bca40f7e8d9a6f1515e49887be51d20908c8fa86 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-115.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-115.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.137.7",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:45",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-116.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-116.json
index 66517feddd919a9ec583e75ec3c1d6e7b6ab9ca8..a20c09b601c5612ddf0702f7d4d1ccdd446872e8 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-116.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-116.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.10.8",
-      "mac": "nil",
+      "mac": "00:11:25:C4:52:A2",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.137.8",
-      "mac": "nil",
+      "mac": "00:11:25:C4:52:A3",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-117.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-117.json
index 759ae7cfefd71957898f5f019de8482ead3f7e35..ebec6b899c384b2db856d93c6153811b83bf23f7 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-117.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-117.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.137.9",
-      "mac": "nil",
+      "mac": "00:11:25:C4:52:ED",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-118.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-118.json
index 13e3ffa1b3068b192263e48a37937725075f6e6d..c40d56c71ef31fbe485cc9becb18daeae554bfb7 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-118.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-118.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.137.10",
-      "mac": "nil",
+      "mac": "00:11:25:C4:53:EB",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-119.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-119.json
index 5f3cca4684c8af6bf732307eae5f83116d9d4bbe..aa2a267ec42560d536911012dd869597bc01b197 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-119.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-119.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.137.11",
-      "mac": "nil",
+      "mac": "00:11:25:C4:51:AD",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-120.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-120.json
index 1059a116d5225fb4f17fcf0473f0954c73f12c5b..880ced199b5451ccaa44f53e660b1e4d92ecc20d 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-120.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-120.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.137.12",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:D3",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-121.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-121.json
index ac41cc3a3b0441acdbd4b6f07aceb6b63a41ec30..339656a3a8b0dc9f695298307369916d122ebc69 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-121.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-121.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.138.13",
-      "mac": "nil",
+      "mac": "00:11:25:C4:50:1B",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-122.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-122.json
index 318ffb481d43774637afd17676a0f2d37bc12200..9e988ba1eca14948d98ea402addf6a08dec8eb82 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-122.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-122.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.138.14",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4D:85",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-123.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-123.json
index 0eb5f1064cd3101243eb1e9f0a39bc06d3774384..a124fee9f5e502b62fac8c62dd106bc873541faa 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-123.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-123.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.138.15",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:B1",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-124.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-124.json
index d8140efcb7894de86740e3e4e60fe47d88b886a1..4b18902833e1d6c692ca252824c9c0fdd81ea733 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-124.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-124.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.138.16",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4D:C9",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-125.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-125.json
index 21f351a4394c53a0eb003ce30092ddfb60562d08..d7e961dee5ab9d8d4537ef7c76721765234b3b0e 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-125.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-125.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.138.17",
-      "mac": "nil",
+      "mac": "00:11:25:C4:51:F9",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-126.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-126.json
index 8988e84d6a6ce7a0dd357b115f8cae2b3fa25443..05727354b46e3f3109fd7c7ddb8d0c4d54132261 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-126.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-126.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.138.18",
-      "mac": "nil",
+      "mac": "00:11:25:C4:53:0F",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-163.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-163.json
index dc5141700ba5ade4ad1d9d0649f1eb3c9545d8fe..d18adb3df94966199ca2f21c73adeff87b671cef 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-163.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-163.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.14.19",
-      "mac": "nil",
+      "mac": "00:11:25:C4:50:86",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.141.19",
-      "mac": "nil",
+      "mac": "00:11:25:C4:50:06",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-164.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-164.json
index 640abdaf2e367409e21259b21cdb1efe9cebbcf0..916bdf117119172c2cda00e88d3fc5117277e315 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-164.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-164.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.14.20",
-      "mac": "nil",
+      "mac": "00:11:25:C4:53:A0",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.141.20",
-      "mac": "nil",
+      "mac": "00:11:25:C4:53:A1",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-165.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-165.json
index 2ddbf8d214ad2df6f87fa7179d4b2f3c4511fe01..934836d4812e976faab714636219ba8b3156e7e2 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-165.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-165.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.14.21",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4D:6A",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.141.21",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4D:6B",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-166.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-166.json
index 63095a4f7e379d6840b25d4ae4603262936c6503..3b21c83e7fac304176e0cdc3a52c1167c69e5d61 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-166.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-166.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.14.22",
-      "mac": "nil",
+      "mac": "00:11:25:C4:04:DE",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.141.22",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3A:91",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-167.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-167.json
index bfa62c3ef31f73ae896148fba760d0dc68da421b..fcbc53cb45e2c6ab844f727e4c37cc1dd9226087 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-167.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-167.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.14.23",
-      "mac": "nil",
+      "mac": "00:11:25:C4:50:02",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.141.23",
-      "mac": "nil",
+      "mac": "00:11:25:C4:50:03",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-168.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-168.json
index 029c6e8d4604812d5cd2f2f9f3fc076416f786b6..f1bf69817ddc90371d1dbb4c10f758e8fcf2501f 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-168.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-168.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.14.24",
-      "mac": "nil",
+      "mac": "00:11:25:C4:54:4C",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.141.24",
-      "mac": "nil",
+      "mac": "00:11:25:C4:54:4D",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-169.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-169.json
index e23242d131b64114def25ccede9d492a3ad52e53..aa2c41c2c89cc665cbc9a2df8ce91024ca7e9c94 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-169.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-169.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.15.25",
-      "mac": "nil",
+      "mac": "00:11:25:C4:45:B0",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.142.25",
-      "mac": "nil",
+      "mac": "00:11:25:C4:45:B1",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-170.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-170.json
index f106bbe92dd861f02963a10b617a20b3d80010b7..1a8ac14c8ac9655cc0a4041db7b6793ae583ec35 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-170.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-170.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.15.26",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4D:00",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.142.26",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4D:01",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-171.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-171.json
index 3618a0267ee339a53c88b54a5983ca4c1ab93480..f10dfd777410b866f123f6498236d2718aeb5127 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-171.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-171.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.15.27",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4D:08",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.142.27",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4D:09",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-172.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-172.json
index 7dc874d3f565a68531e5f2e956b471c197c45f9b..1c1cbeb4c4e599182ee97a69bb64913030071363 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-172.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-172.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.15.28",
-      "mac": "nil",
+      "mac": "00:11:25:C4:54:18",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.142.28",
-      "mac": "nil",
+      "mac": "00:11:25:C4:54:19",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-173.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-173.json
index d032724bdc6c69de0eb0efb0d36a8f0687b4e1ff..d2b431ff38b77a77740e4e3c96ddcb534fa3cd5a 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-173.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-173.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.15.29",
-      "mac": "nil",
+      "mac": "00:11:25:C4:51:DA",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.142.29",
-      "mac": "nil",
+      "mac": "00:11:25:C4:51:DB",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-174.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-174.json
index c0ced9fddf0568ddd8a5bce64571df99f6d6a074..4476a437ef988f84d4c4ba4ecfad64240e15b7e8 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-174.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-174.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.15.30",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:46",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.142.30",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:47",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-175.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-175.json
index f9f7a5dc6827501b66cfacac5246a0f6fbfdf710..7ec563de9cb50240c2f0452532e51d2e310fc36b 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-175.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-175.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.15.31",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:AC",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.142.31",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:AD",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-176.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-176.json
index b5c640da49c62f9b1470ab6a13fc83b405abcd22..4008afe176df56b5dbfb40fb89035e716b29205b 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-176.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-176.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.15.32",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:CA",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.142.32",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:CB",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-177.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-177.json
index 9165216826520e34c37896006029b9c6c6ba465e..d3e843ba50eb872924f15696353c64e7a7e11f8b 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-177.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-177.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.15.33",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:C4",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.142.33",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:C5",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-178.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-178.json
index 03cd7c62d4dbf830e7844d790e836b6fbcec5ddb..1a0a7f817d43e3f5deb997abc06198bc7c41e4da 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-178.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-178.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.15.34",
-      "mac": "nil",
+      "mac": "00:11:25:C4:50:0A",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.142.34",
-      "mac": "nil",
+      "mac": "00:11:25:C4:50:0B",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-179.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-179.json
index a764d686bb1861d905dd12b0f8287c56e4e373f2..658ee7186ae346232e0078cfb8958c6fe8d0255f 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-179.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-179.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.15.35",
-      "mac": "nil",
+      "mac": "00:11:25:C4:50:76",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.142.35",
-      "mac": "nil",
+      "mac": "00:11:25:C4:50:77",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-180.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-180.json
index abed08731a19a9b6891a28aa799f5cccac016c63..30eef328417ec5504a398da40ea24018cb6ec8ec 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-180.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-180.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.15.36",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:E6",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.142.36",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:E7",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-181.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-181.json
index 7d8ecfb53b048a0a598643bdb5f666c7ae0e7c49..0a2426bc2df45de1c8939f33be677f572d24c357 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-181.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-181.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.143.1",
-      "mac": "nil",
+      "mac": "00:11:25:91:45:DD",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.16.1",
-      "mac": "nil",
+      "mac": "00:11:25:C4:53:4A",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.143.1",
-      "mac": "nil",
+      "mac": "00:11:25:C4:53:4B",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-182.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-182.json
index 8be4f2d1f98be2f10aece79117d1d566901e3ccf..3c18a455b87ec5d89e7808eaf424e4bcd42dd5c5 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-182.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-182.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.143.2",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:A0",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.16.2",
-      "mac": "nil",
+      "mac": "00:11:25:C4:52:88",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.143.2",
-      "mac": "nil",
+      "mac": "00:11:25:C4:52:89",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-183.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-183.json
index c0fedd702ffb2351d84c8bae671121d9c1ffcd35..ad81554e0896964fc64a7ad7856b85e088bf6a71 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-183.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-183.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.143.3",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:91",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.16.3",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:5E",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.143.3",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:5F",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-184.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-184.json
index 428939821afd4b57a9e27f6738d6a9ee59f6b70f..7a5bc968775e121d77b43e26c0f1abaf811cdb89 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-184.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-184.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.143.4",
-      "mac": "nil",
+      "mac": "00:11:25:91:46:3B",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.16.4",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:08",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.143.4",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:09",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-185.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-185.json
index 6f660e21d82968de920d072f305ed49473395a11..1ef5fea6586260d9cffb78356bdcc0a78e3c1cca 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-185.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-185.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.143.5",
-      "mac": "nil",
+      "mac": "00:11:25:91:46:A0",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.16.5",
-      "mac": "nil",
+      "mac": "00:11:25:C4:53:B6",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.143.5",
-      "mac": "nil",
+      "mac": "00:11:25:C4:53:B7",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-186.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-186.json
index 789a0a051a48fa0687d71c4d22bd356c4a4a86b0..19338dbab422ce8f557b1ddf97b0b2128a7655e3 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-186.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-186.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.143.6",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:F6",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.16.6",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:48",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.143.6",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:49",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-187.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-187.json
index 144fef76b2c5b684fcf0df1b754a81710da8a522..7233ffa211ab03c084da3012e0740a925d9d9251 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-187.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-187.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.143.7",
-      "mac": "nil",
+      "mac": "00:11:25:91:48:58",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.16.7",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:70",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.143.7",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:71",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-188.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-188.json
index 39e5fc9d8200b9d936f85601e2b383d8d440a81c..99613636f3d315950d75f1fc87819d693ed05036 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-188.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-188.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.143.8",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:30",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.16.8",
-      "mac": "nil",
+      "mac": "00:11:25:C4:52:4E",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.143.8",
-      "mac": "nil",
+      "mac": "00:11:25:C4:52:4F",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-189.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-189.json
index 5e43e47b534dfd48e426fa53cd7b5a822c38661c..d1097f3bd1f9157334cc7f15dfcee8aa9bcb71ff 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-189.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-189.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.143.9",
-      "mac": "nil",
+      "mac": "00:11:25:91:48:5F",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.16.9",
-      "mac": "nil",
+      "mac": "00:11:25:C4:52:46",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.143.9",
-      "mac": "nil",
+      "mac": "00:11:25:C4:52:47",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-190.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-190.json
index 43ec84dbb47e8dc74e74f27e49225afa1b315015..6f08ece662d608199448523a9e94f55fb150c85c 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-190.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-190.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.143.10",
-      "mac": "nil",
+      "mac": "00:11:25:91:48:11",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.16.10",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:34",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.143.10",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:35",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-191.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-191.json
index cc1e9c1869b5ad04eb1685afd1796eee0519c69d..6c59da3f8670c2b57cbcd1daa9d521e4e912b4d3 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-191.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-191.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.143.11",
-      "mac": "nil",
+      "mac": "00:11:25:91:49:4D",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.16.11",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:3A",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.143.11",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:3B",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-192.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-192.json
index ee85500b85fc11fe87c59f96dfbc673a0b73c635..d4dfe09296ce1390a11ccef395f01c5db59cb038 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-192.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-192.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.143.12",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:56",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.16.12",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:A8",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.143.12",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:A9",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-193.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-193.json
index b1b5a9bed6dacb2a944158ddc68acedb705cd000..7da58773cfd1bcf0603a5b7810ee885025b4ff3c 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-193.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-193.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.144.13",
-      "mac": "nil",
+      "mac": "00:11:25:91:49:12",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.17.13",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:14",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.144.13",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:15",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-194.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-194.json
index 3a7f47a95abb183efd644cb32444e45c7d58f051..c542cd363d4cf7fba06fa65328772978f7251aff 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-194.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-194.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.144.14",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:74",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.17.14",
-      "mac": "nil",
+      "mac": "00:11:25:C4:52:D0",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.144.14",
-      "mac": "nil",
+      "mac": "00:11:25:C4:52:D1",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-195.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-195.json
index eb89fe235d9de3609a2e5ae156985330a52353b0..fb90a2b20e3eee6e0e7a40a418070284915a6cb6 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-195.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-195.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.144.15",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:F5",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.17.15",
-      "mac": "nil",
+      "mac": "00:11:25:C4:38:D4",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.144.15",
-      "mac": "nil",
+      "mac": "00:11:25:C4:38:D5",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-196.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-196.json
index 636688a696bebc2c3fdfea0f81c8ca4adc5c7659..f616f3704219c1844ddb28d7ac9ff4f1e29c4d1d 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-196.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-196.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.144.16",
-      "mac": "nil",
+      "mac": "00:11:25:91:45:7B",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.17.16",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:E4",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.144.16",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:E5",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-197.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-197.json
index c1feed81e8bee0565cfc44bf3bd377bd0f86647c..0ceb00b1718e23688d0c113cb1a8985fb0a5c5cc 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-197.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-197.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.144.17",
-      "mac": "nil",
+      "mac": "00:11:25:91:45:F9",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.17.17",
-      "mac": "nil",
+      "mac": "00:11:25:C4:51:72",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.144.17",
-      "mac": "nil",
+      "mac": "00:11:25:C4:51:73",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-198.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-198.json
index b0fb83d6a8849083ed1eeec14de802028ff72f63..4dcd0c0f59c29f74256812d33e5d7e13c667470f 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-198.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-198.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.144.18",
-      "mac": "nil",
+      "mac": "00:11:25:91:48:95",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.17.18",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:C8",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.144.18",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:C9",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-199.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-199.json
index bc86a795f478dedf1899f85b69729eb9447f1a85..ed8acfd52e6037167111a604738387667270b425 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-199.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-199.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.144.19",
-      "mac": "nil",
+      "mac": "00:11:25:91:48:99",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.17.19",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:CC",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.144.19",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:CD",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-200.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-200.json
index a97048b4e3b71236d23c6e2549294d558b1b7eae..9efd52d8beee624608ee1229bb9559a46515411c 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-200.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-200.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.144.20",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:C9",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.17.20",
-      "mac": "nil",
+      "mac": "00:11:25:C4:50:D2",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.144.20",
-      "mac": "nil",
+      "mac": "00:11:25:C4:50:D3",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-201.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-201.json
index 150ef6ee5eca0fd85f16614782c9640e68f92000..11ba05345fa2a7f372f98781404ff7011b852289 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-201.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-201.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.144.21",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:A2",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.17.21",
-      "mac": "nil",
+      "mac": "00:11:25:C4:51:B2",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.144.21",
-      "mac": "nil",
+      "mac": "00:11:25:C4:51:B3",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-202.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-202.json
index 24bcde1bfebb2048d1eaec615fa2f1736b229a5c..23e6f0e55474fd522066dc1b4f27e4ecca6f9f53 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-202.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-202.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.144.22",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:A8",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.17.22",
-      "mac": "nil",
+      "mac": "00:11:25:C4:53:F8",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.144.22",
-      "mac": "nil",
+      "mac": "00:11:25:C4:53:F9",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-203.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-203.json
index 588a4409865c2c9643f29de0af02978a6589f395..0d3bb93d407551b4784d1f3c47917b01f6cb56fb 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-203.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-203.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.144.23",
-      "mac": "nil",
+      "mac": "00:11:25:91:45:F5",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.17.23",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4C:FC",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.144.23",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4C:FD",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-204.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-204.json
index 4e12145514293bc2a0465dfbea1ffb6083a19743..43b295b1ab7a6032cc9147fb2008973eb4f7e729 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-204.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-204.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.144.24",
-      "mac": "nil",
+      "mac": "00:11:25:91:46:16",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.17.24",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:04",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.144.24",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:05",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-205.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-205.json
index b23555faae36add80a7a88f0478e775d76e0f6a3..31e08a4a26329a91413e0f6e106373d3eaa6571d 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-205.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-205.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.145.25",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:95",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.18.25",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:14",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.145.25",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:15",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-206.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-206.json
index ca219b2f82200e8a7276278de492161b5f06db9d..71d16629e619b7e0d4f521cccbc961308fcf91ba 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-206.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-206.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.145.26",
-      "mac": "nil",
+      "mac": "00:11:25:91:46:54",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.18.26",
-      "mac": "nil",
+      "mac": "00:11:25:C4:52:64",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.145.26",
-      "mac": "nil",
+      "mac": "00:11:25:C4:52:65",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-207.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-207.json
index 5bae7f205fa17c1b17984704f27b0da89ff1e3da..71c0aa0937b194c81c9f1c31b9153402c0f3cfe3 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-207.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-207.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.145.27",
-      "mac": "nil",
+      "mac": "00:11:25:91:48:D5",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.18.27",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:B4",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.145.27",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:B5",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-208.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-208.json
index e3c965ea56e975e577f860d4a842953879494ed5..a56fcd2ebdb432b9b810a9c892b17bb8475aff76 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-208.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-208.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.145.28",
-      "mac": "nil",
+      "mac": "00:11:25:91:46:7D",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.18.28",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:AE",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.145.28",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:AF",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-209.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-209.json
index 6bafb0da31570a182c63bf9697d633fcc2c4bd5b..5d8179a58fd97ccb22eb10f28a0a77b63c3f3fa4 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-209.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-209.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.145.29",
-      "mac": "nil",
+      "mac": "00:11:25:91:45:82",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.18.29",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:C4",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.145.29",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:C5",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-21.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-21.json
index a4c33648d1a7e51fcb47f1b987f2ce808768372d..8e93de34cab807737b8f4bfbb86237ff532e9161 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-21.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-21.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.129.21",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:F8",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.2.21",
-      "mac": "nil",
+      "mac": "00:11:25:C4:35:A8",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.129.21",
-      "mac": "nil",
+      "mac": "00:11:25:C4:35:A9",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-210.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-210.json
index 904c273df35b2b007a5187d7144eaf5f5bb879e0..62aa586bd4872a14c040a5eb0dd44102fe86534a 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-210.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-210.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.145.30",
-      "mac": "nil",
+      "mac": "00:11:25:91:45:AA",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.18.30",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:94",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.145.30",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:95",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-211.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-211.json
index 9aca10c1be8f88aa731332ea5c77983909954c5e..dddca8cf8512ae5ba6b796027c9cbba97758d566 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-211.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-211.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.145.31",
-      "mac": "nil",
+      "mac": "00:11:25:91:48:38",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.18.31",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:94",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.145.31",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:95",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-212.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-212.json
index 4bdec8b9f2a9867e04d44b407cb7e6687af85936..768870502d1544a5ea8c543c82803dd42dfb1950 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-212.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-212.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.145.32",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:C3",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.18.32",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:BA",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.145.32",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:BB",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-213.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-213.json
index 957d3f348d4dd8a243583939e3400899c8f9ebfa..790cb9b09bc509b0809ece4dda815495c1a7ce1f 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-213.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-213.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.145.33",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:EE",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.18.33",
-      "mac": "nil",
+      "mac": "00:11:25:C4:54:50",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.145.33",
-      "mac": "nil",
+      "mac": "00:11:25:C4:54:51",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-214.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-214.json
index f63d0a46d1ae2a696fc9921c3d899def930ab9e8..9ac46fd78b0987df2689fa0c12dbb753e19bc3ad 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-214.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-214.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.145.34",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:C7",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.18.34",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:50",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.145.34",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:51",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-215.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-215.json
index 61052cc885fb80dacd51df1bb3cc80dbec24188d..201a356a5290cfb752e83f2a4aad42884411841c 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-215.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-215.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.145.35",
-      "mac": "nil",
+      "mac": "00:11:25:91:46:83",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.18.35",
-      "mac": "nil",
+      "mac": "00:11:25:C4:54:7E",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.145.35",
-      "mac": "nil",
+      "mac": "00:11:25:C4:54:7F",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-216.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-216.json
index 88739e93046eb13f7bac5e18c9de4dc7c0951bbe..0e0dee6419e04bfecb4313c69aeb2b55415af556 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-216.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-216.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.145.36",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:AF",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.18.36",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4D:1C",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.145.36",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4D:1D",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-217.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-217.json
index 5dec63d003b9ac96f79fb2b12487bfb98ea60a79..5412ca04d6c6c027e9508de5632652ce915fb718 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-217.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-217.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.146.1",
-      "mac": "nil",
+      "mac": "00:11:25:91:46:70",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.19.1",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3B:7C",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.146.1",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3B:7D",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-218.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-218.json
index 2c60764e1aa00649e1a292688a23d937a4d51712..528c13ae170f1dece52b2b375264257ee06957c2 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-218.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-218.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.146.2",
-      "mac": "nil",
+      "mac": "00:11:25:91:48:D2",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.19.2",
-      "mac": "nil",
+      "mac": "00:11:25:C4:35:46",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.146.2",
-      "mac": "nil",
+      "mac": "00:11:25:C4:35:47",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-219.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-219.json
index 876f6fac0ada5ba98707b4e2721c9ab0f2f9ce60..0cbd9124cfb7404057810cc5a030a4d820ea9dc2 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-219.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-219.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.146.3",
-      "mac": "nil",
+      "mac": "00:11:25:91:48:AA",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.19.3",
-      "mac": "nil",
+      "mac": "00:11:25:C4:39:A8",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.146.3",
-      "mac": "nil",
+      "mac": "00:11:25:C4:39:A9",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-220.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-220.json
index e43d6756ae23b85ffa1931b1143df09b84737048..5c85bf1f987e1c3c3dc0cdbd5cc47e580768f6bc 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-220.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-220.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.146.4",
-      "mac": "nil",
+      "mac": "00:11:25:91:48:39",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.19.4",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3C:6A",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.146.4",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3C:6B",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-221.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-221.json
index 9f43f8ab19d8cac3c36850f61157c173521ba4a7..555b487a0809cd586b78ac1286f65f9f9f880aaf 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-221.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-221.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.146.5",
-      "mac": "nil",
+      "mac": "00:11:25:91:45:C3",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.19.5",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3D:96",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.146.5",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3D:97",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-222.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-222.json
index 73da3e709659c632f7e0e5768b1a76434409cf04..bb5771bfaaf94a3c2ff335768f7741651c3cc306 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-222.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-222.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.146.6",
-      "mac": "nil",
+      "mac": "00:11:25:91:48:16",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.19.6",
-      "mac": "nil",
+      "mac": "00:11:25:C4:39:54",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.146.6",
-      "mac": "nil",
+      "mac": "00:11:25:C4:39:55",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-223.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-223.json
index 29cdbd07be3ef63bea8b3ecdeedd3d7597dd339b..5582a0fe97b7a1d9a7b8eeaa6192c48861aeaf8b 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-223.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-223.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.146.7",
-      "mac": "nil",
+      "mac": "00:11:25:91:48:A4",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.19.7",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3C:14",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.146.7",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3C:15",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-224.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-224.json
index 19b0b45b324cb7e1025f4030bcce6f5115e225c8..0628f3e0fc0d688c0e45b504a1e0cc25e37a7516 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-224.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-224.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.146.8",
-      "mac": "nil",
+      "mac": "00:11:25:91:46:7E",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.19.8",
-      "mac": "nil",
+      "mac": "00:11:25:C4:39:00",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.146.8",
-      "mac": "nil",
+      "mac": "00:11:25:C4:39:01",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-225.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-225.json
index 9ac1814d1e3b470d207159839713eb46fc9dc460..8e3be7c099f73d6f03e579ca16732733b370b3c8 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-225.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-225.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.146.9",
-      "mac": "nil",
+      "mac": "00:11:25:91:46:AE",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.19.9",
-      "mac": "nil",
+      "mac": "00:11:25:C4:38:D0",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.146.9",
-      "mac": "nil",
+      "mac": "00:11:25:C4:38:D1",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-226.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-226.json
index 3c46537fd9b3952a6e826ea7b474063941d1c823..650062d2b57000b689f6ee0a8545cdfa57c4f1d6 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-226.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-226.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.146.10",
-      "mac": "nil",
+      "mac": "00:11:25:91:48:35",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.19.10",
-      "mac": "nil",
+      "mac": "00:11:25:C4:38:F6",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.146.10",
-      "mac": "nil",
+      "mac": "00:11:25:C4:38:F7",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-227.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-227.json
index 7e0e8b35702c577a53456b526142d905094ff01e..acb5c6014f89b5527abb01d4ad750ad478c64489 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-227.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-227.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.146.11",
-      "mac": "nil",
+      "mac": "00:14:5E:65:C6:4A",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.19.11",
-      "mac": "nil",
+      "mac": "00:11:25:C4:34:52",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.146.11",
-      "mac": "nil",
+      "mac": "00:11:25:C4:39:8F",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-228.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-228.json
index 3996f989772ae584df424c0a1721d52cd39825ad..0eeacc4b141e05cb185c8e028455e2d425b79678 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-228.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-228.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.146.12",
-      "mac": "nil",
+      "mac": "00:11:25:91:46:0C",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.19.12",
-      "mac": "nil",
+      "mac": "00:11:25:C4:32:A6",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.146.12",
-      "mac": "nil",
+      "mac": "00:11:25:C4:32:A7",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-229.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-229.json
index 4c81d54404fd355939b884556bb3db20d4fdf312..3dde5b072ea5fca64aba46045013fcf754ed32f5 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-229.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-229.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.147.13",
-      "mac": "nil",
+      "mac": "00:11:25:91:45:8A",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.20.13",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3C:76",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.147.13",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3C:77",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-230.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-230.json
index 5edf3bbb3791958be76993a7deff3161b4139249..db8e527f17e0454b181c1b6269157a02234adfb4 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-230.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-230.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.147.14",
-      "mac": "nil",
+      "mac": "00:11:25:91:45:B4",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.20.14",
-      "mac": "nil",
+      "mac": "00:11:25:C4:35:A6",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.147.14",
-      "mac": "nil",
+      "mac": "00:11:25:C4:35:A7",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-231.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-231.json
index 661ca0d4436e47bc89f2fc42a218f825f66bf521..0df4c238e508526567b0791af341f71692c03fd7 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-231.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-231.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.147.15",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:E5",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.20.15",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3C:78",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.147.15",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3C:79",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-232.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-232.json
index 8fb9682d832424012094133f45014e143803a385..07b0a512e92a70dcde9fe1ad7bb2114e171059f6 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-232.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-232.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.147.16",
-      "mac": "nil",
+      "mac": "00:11:25:91:45:79",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.20.16",
-      "mac": "nil",
+      "mac": "00:11:25:C4:38:CA",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.147.16",
-      "mac": "nil",
+      "mac": "00:11:25:C4:38:CB",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-233.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-233.json
index e090f6b99eb580bb4245d9bb658cca8541c25d32..8ed69d81bc273b9ce9d6c1b09fd24410c73afc10 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-233.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-233.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.147.17",
-      "mac": "nil",
+      "mac": "00:11:25:91:45:96",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.20.17",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3C:20",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.147.17",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3C:21",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-234.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-234.json
index de3a80e829e00a6a9fa7a218ec75c4406539f684..60fcf0c2718852fa81cbf403f397805eaf1de881 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-234.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-234.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.147.18",
-      "mac": "nil",
+      "mac": "00:11:25:91:46:08",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.20.18",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3C:42",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.147.18",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3C:43",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-235.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-235.json
index df3c4fe8538ad36bb6439dde3dca86ec439c43f7..f26caab35f9b3cd015847b4ae041bb768b4c46a5 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-235.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-235.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.147.19",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:EB",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.20.19",
-      "mac": "nil",
+      "mac": "00:11:25:C4:35:50",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.147.19",
-      "mac": "nil",
+      "mac": "00:11:25:C4:35:51",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-25.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-25.json
index 706fac3bb1890c9bf548c18b1e287cb07908950c..2780a976fd20ca42738fc299d04d058a8e62dc88 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-25.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-25.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.3.25",
-      "mac": "nil",
+      "mac": "00:11:25:C4:35:1C",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.130.25",
-      "mac": "nil",
+      "mac": "00:11:25:C4:35:1D",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-265.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-265.json
index a77d3570a18438064b4746674b13aabe629b9ab3..f557121b9a5d4fc1f7a4d4e3806e1abe37cf7503 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-265.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-265.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.150.13",
-      "mac": "nil",
+      "mac": "00:11:25:C4:34:65",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-267.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-267.json
index cc116764a512c4443324ed76b954a738c5a612d8..f0c27225156925935fca4ff8e900ddabfc29f483 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-267.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-267.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.150.15",
-      "mac": "nil",
+      "mac": "00:11:25:C4:35:37",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-284.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-284.json
index 9946c090c7fc811a1f65b4f68fba9b69b836bd11..8859b639e4299a4e05daf9c064a8d5c2d3ecc49e 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-284.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-284.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.24.32",
-      "mac": "nil",
+      "mac": "00:11:25:C4:49:DE",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.151.32",
-      "mac": "nil",
+      "mac": "00:11:25:C4:49:DF",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-29.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-29.json
index 17d8f2ca59f90aac3a58d76dea6c20f4d0bfe782..4093afbb4a8ccd8faf48f7b819b6024c218e12a3 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-29.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-29.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.130.29",
-      "mac": "nil",
+      "mac": "00:14:5E:65:C6:29",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.3.29",
-      "mac": "nil",
+      "mac": "00:11:25:C4:05:0C",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.130.29",
-      "mac": "nil",
+      "mac": "00:11:25:C4:34:53",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-290.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-290.json
index 8bb1838ed7079a532339b7acb60d1d6aa27d394b..9c2ff515797ca038ff7550be4fd9b66ef8c1b591 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-290.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-290.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.152.2",
-      "mac": "nil",
+      "mac": "00:11:25:91:48:A4",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.25.2",
-      "mac": "nil",
+      "mac": "00:11:25:C4:33:7C",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.152.2",
-      "mac": "nil",
+      "mac": "00:11:25:C4:33:7D",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-307.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-307.json
index 9d4ff9a5f8db195ec4a805a20c222cbd4fa7b09a..ea138eaa0e8088ce91e7150bdc10f804f611950e 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-307.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-307.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.26.19",
-      "mac": "nil",
+      "mac": "00:11:25:C4:33:4C",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.153.19",
-      "mac": "nil",
+      "mac": "00:11:25:C4:33:4D",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-308.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-308.json
index 64af42de992b29b9e5669e890b7b88b7ec8c9aee..5d4b1a6bc883e9c359a02e78774d4d38a07e58b7 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-308.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-308.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.26.20",
-      "mac": "nil",
+      "mac": "00:11:25:C4:32:6A",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.153.20",
-      "mac": "nil",
+      "mac": "00:11:25:C4:32:6B",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-309.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-309.json
index 771bda48f3653cdae12ea4c3cb6555a82ce1781a..2808d76781b0f223bc556a7d639767cd81d0313e 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-309.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-309.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.26.21",
-      "mac": "nil",
+      "mac": "00:11:25:C4:33:30",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.153.21",
-      "mac": "nil",
+      "mac": "00:11:25:C4:33:31",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-310.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-310.json
index a3fd5c346d90f5fe2946139189b05147dfb71ecc..d3ddee07232ce143ce242764df8752b37bcbb5a8 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-310.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-310.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.26.22",
-      "mac": "nil",
+      "mac": "00:11:25:C4:33:D0",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.153.22",
-      "mac": "nil",
+      "mac": "00:11:25:C4:33:D1",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-53.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-53.json
index 6e36683ca42394afd5de5bbdb41407d29d9e3487..1e6fec1ac239205001dee32fddc8d645c8a87f83 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-53.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-53.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.5.17",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3B:F6",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.132.17",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3B:F7",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-60.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-60.json
index e7c11aeb12849e4727086c2d9153dcd81655cc7d..c6ef2afc7e441fda715883e467595c7ba8be8d9a 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-60.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-60.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.132.24",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3E:2D",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-61.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-61.json
index d4960375e2ace8123146771abd65e786087bf68f..a13cb085000a92b66307aa1a9cc9fb004959420d 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-61.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-61.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.133.25",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:11",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-62.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-62.json
index d73c4f70382767b9a97794d8a35a51ea06f4ae0f..d29ea93725b48860b438d0d5cfe2cde05730844f 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-62.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-62.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.133.26",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3C:63",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-63.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-63.json
index 2066bbd7331d61172e4eff8d1b6a6cd18187b3f5..d798a51a012ebc50e8f3d297a87032d8bab4b9df 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-63.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-63.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.133.27",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3B:B5",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-64.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-64.json
index 574828e58f05bf767083b6b21235f4b69ae0c63c..893bd02256d52ce775ad0fe6af899b3c47bd1945 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-64.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-64.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.133.28",
-      "mac": "nil",
+      "mac": "00:11:25:C4:39:87",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-65.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-65.json
index b23165ba030c1e3bf924250f6e0d63a5642dca93..068523fb3dfe52d91236aa20044abc7ea774ccfb 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-65.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-65.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.133.29",
-      "mac": "nil",
+      "mac": "00:11:25:91:46:C0",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.6.29",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3C:4C",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.133.29",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3C:4D",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-66.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-66.json
index 827cbbb10da7acf7ab92abc1b70e2751988d8007..f756cb7d9eaa561c5dde27ae00b23e8bd60dfaf7 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-66.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-66.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.133.30",
-      "mac": "nil",
+      "mac": "00:11:25:91:46:E1",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.6.30",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3B:E0",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.133.30",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3B:E1",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-67.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-67.json
index 0359a19c4b5a265a1ed41b5e2d76db258539e9d4..c6f4108b11c79c76ffde0cf5df03d3afccf74410 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-67.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-67.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.133.31",
-      "mac": "nil",
+      "mac": "00:11:25:91:47:09",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.6.31",
-      "mac": "nil",
+      "mac": "00:11:25:C4:35:66",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.133.31",
-      "mac": "nil",
+      "mac": "00:11:25:C4:35:67",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-68.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-68.json
index bab5c81905272ec21af388951b7b1df55f590797..3bc42844e2ef272956be424892455a66c8cc685e 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-68.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-68.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.133.32",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3C:19",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-69.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-69.json
index 69da6131e6e87adc7fc35e7f1eba620241cf79c1..550d4a34e29f3e7f6d003c089bde1eaf125829df 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-69.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-69.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.133.33",
-      "mac": "nil",
+      "mac": "00:11:25:C4:34:83",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-7.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-7.json
index b06ec33e67bc7d5fcfee6302054bbd9d8a432722..655e44c7d0bd98800b060ae86aff4aa41aaa1439 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-7.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-7.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.128.7",
-      "mac": "nil",
+      "mac": "00:11:25:91:46:05",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.1.7",
-      "mac": "nil",
+      "mac": "00:11:25:C4:35:92",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.128.7",
-      "mac": "nil",
+      "mac": "00:11:25:C4:35:93",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-70.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-70.json
index e0ebb78bd6130c8230cf05300bfe1bc3d0294d4a..adf0e2a5c6c7b25f3a820bb06688c2847620629a 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-70.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-70.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.133.34",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3C:4B",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-72.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-72.json
index ee0a2a86af9aa30eea0446ee089239f8f913a058..91904cf8b87655e5624c5382872fb37ae96d8405 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-72.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-72.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.133.36",
-      "mac": "nil",
+      "mac": "00:11:25:C4:3E:3D",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-8.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-8.json
index 53e6dc2768e1dceae9f4cee4cf58ad0bb889d251..cf37f8df689e21ae63160867605b691de64d1c36 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-8.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-8.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.128.8",
-      "mac": "nil",
+      "mac": "00:11:25:C4:35:C3",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-81.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-81.json
index a0d57b19932583aa5f50eae250596b899f0118cd..fe8a326e180161ccb799ed69c8b7177edc7715aa 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-81.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-81.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.7.9",
-      "mac": "nil",
+      "mac": "00:11:25:C4:26:50",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.134.9",
-      "mac": "nil",
+      "mac": "00:11:25:C4:26:51",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-9.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-9.json
index 4a206af3af106a6ed2760dc90422d97f5978f029..a1dd31a69707a2df4bd9f1cbedc1a3ecd402a540 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-9.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-9.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.128.9",
-      "mac": "nil",
+      "mac": "00:11:25:C4:34:6B",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-91.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-91.json
index 7f33594419a94959060e3a887a61ccffbcec69a5..247c5a8d928b5c28cf015ecd7bb89693b0b61a9b 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-91.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-91.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.135.19",
-      "mac": "nil",
+      "mac": "00:11:25:C4:51:4D",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-92.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-92.json
index d8e2bccda640eea870ba029d514e8cd758b7d903..61c501f3b9c3bba4e32d1285105617afa1fc12f1 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-92.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-92.json
@@ -14,7 +14,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.26.135.20",
-      "mac": "nil",
+      "mac": "00:11:25:91:46:4D",
       "management": true,
       "mountable": false,
       "mounted": false,
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.8.20",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4D:82",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.135.20",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4D:83",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-93.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-93.json
index c0d129672a2485ca27c1a4edb0fb207918c5ba5f..cff14d703539537cab461dcd00fe92d79bc71731 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-93.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-93.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.135.21",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:A7",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-94.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-94.json
index e298ee5cda00964fe722a00377a15b14f3d2e583..febbc1653c46963a40083420109de3fc62b55105 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-94.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-94.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.135.22",
-      "mac": "nil",
+      "mac": "00:11:25:C4:53:FD",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-95.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-95.json
index 2382c3569a85f1583c138ce20da269e77012d2c9..03caf17506eb71c953a6f1adc1edd9c7ee0c2481 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-95.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-95.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.135.23",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:31",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-96.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-96.json
index 0d1b6cd83bb8e26f7207c860fadeec59df717b46..e07856dc847bf05624c1cf553362eddd1a1ace56 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-96.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-96.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.135.24",
-      "mac": "nil",
+      "mac": "00:11:25:C4:50:A7",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-97.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-97.json
index 3e3a82795e74cd23d52afe0a372170dbb4869461..f4e34a2605485456494bbaeea62503131351e140 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-97.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-97.json
@@ -53,7 +53,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.24.9.25",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:06",
       "management": false,
       "mountable": true,
       "mounted": true,
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.136.25",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:07",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-98.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-98.json
index 829b4330bf8ea9f30081e27408edc55d75346248..7336c73cebc842bc2116c11fe5dc17bbf6f40a3c 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-98.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-98.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.136.26",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4E:1B",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-99.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-99.json
index fdf9907d41e168b0a58e215e9ea9980d95d32ef9..62db8b44b2ed889f1a2e477da09e73baae5dfb9a 100755
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-99.json
+++ b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-99.json
@@ -71,7 +71,7 @@
       "enabled": false,
       "interface": "Ethernet",
       "ip": "172.24.136.27",
-      "mac": "nil",
+      "mac": "00:11:25:C4:4F:3F",
       "management": false,
       "mountable": false,
       "mounted": false,
diff --git a/generators/input/orsay-gdx.yaml b/generators/input/orsay-gdx.yaml
index a31d5ee43141f57be6ed9381df9e1a8e528a1bbb..c88209a70c3d698e10b76a14ce5aeaf3c62e51bc 100644
--- a/generators/input/orsay-gdx.yaml
+++ b/generators/input/orsay-gdx.yaml
@@ -2,7 +2,7 @@
 gdx-9: 
   mac_eth0: 00:11:25:C4:34:6A
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:34:6B
   mac_bmc: 00:11:25:91:48:AC
 gdx-28: 
   mac_myri0: 00:60:DD:47:5A:B6
@@ -30,24 +30,24 @@ gdx-132:
   mac_eth1: 00:11:25:C4:4E:59
   mac_bmc: 00:11:25:91:47:E3
 gdx-212: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:4F:BA
+  mac_myri0: 00:60:DD:47:B5:EF
+  mac_eth1: 00:11:25:C4:4F:BB
+  mac_bmc: 00:11:25:91:47:C3
 gdx-29: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:05:0C
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:34:53
+  mac_bmc: 00:14:5E:65:C6:29
 gdx-55: 
   mac_myri0: 00:60:DD:47:59:6F
   mac_eth0: 00:11:25:C4:3B:BC
   mac_eth1: 00:11:25:C4:3B:BD
   mac_bmc: 00:11:25:91:49:0B
 gdx-81: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:26:50
+  mac_myri0: 00:11:25:C4:26:51
+  mac_eth1: 00:11:25:C4:26:51
   mac_bmc: 00:11:25:91:46:0A
 gdx-106: 
   mac_myri0: 00:60:DD:47:67:88
@@ -60,10 +60,10 @@ gdx-133:
   mac_eth1: 00:11:25:C4:4E:83
   mac_bmc: 00:11:25:91:47:93
 gdx-213: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:54:50
+  mac_myri0: 00:60:DD:47:86:5D
+  mac_eth1: 00:11:25:C4:54:51
+  mac_bmc: 00:11:25:91:47:EE
 gdx-240: 
   mac_myri0: 00:60:DD:47:7D:7C
   mac_eth0: 00:11:25:C4:3E:34
@@ -90,10 +90,10 @@ gdx-160:
   mac_eth1: 00:11:25:C4:4F:3B
   mac_bmc: 00:11:25:91:46:8D
 gdx-214: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:4E:50
+  mac_myri0: 00:60:DD:47:B4:C4
+  mac_eth1: 00:11:25:C4:4E:51
+  mac_bmc: 00:11:25:91:47:C7
 gdx-241: 
   mac_myri0: 00:60:DD:47:7C:D4
   mac_eth0: 00:11:25:C4:3C:74
@@ -125,10 +125,10 @@ gdx-161:
   mac_eth1: 00:11:25:C4:4F:8F
   mac_bmc: 00:11:25:91:48:B8
 gdx-215: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:54:7E
+  mac_myri0: 00:60:DD:47:89:EC
+  mac_eth1: 00:11:25:C4:54:7F
+  mac_bmc: 00:11:25:91:46:83
 gdx-242: 
   mac_myri0: 00:60:DD:47:7C:C8
   mac_eth0: 00:11:25:C4:2B:FC
@@ -147,7 +147,7 @@ gdx-84:
 gdx-109: 
   mac_eth0: 00:11:25:C4:53:22
   mac_myri0: 00:60:DD:47:59:7E
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:53:23
   mac_bmc: 00:11:25:91:45:F1
 gdx-135: 
   mac_myri0: 00:60:DD:47:59:70
@@ -160,10 +160,10 @@ gdx-162:
   mac_eth1: 00:11:25:C4:4E:B9
   mac_bmc: 00:11:25:91:45:FE
 gdx-216: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:4D:1C
+  mac_myri0: 00:60:DD:47:89:76
+  mac_eth1: 00:11:25:C4:4D:1D
+  mac_bmc: 00:11:25:91:47:AF
 gdx-243: 
   mac_myri0: 00:60:DD:47:7C:07
   mac_eth0: 00:11:25:C4:2B:58
@@ -185,15 +185,15 @@ gdx-136:
   mac_eth1: 00:11:25:C4:4D:41
   mac_bmc: 00:11:25:91:48:A0
 gdx-163: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:50:86
+  mac_myri0: 00:60:DD:47:65:A7
+  mac_eth1: 00:11:25:C4:50:06
   mac_bmc: 00:11:25:91:48:34
 gdx-217: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:3B:7C
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:3B:7D
+  mac_bmc: 00:11:25:91:46:70
 gdx-270: 
   mac_myri0: 00:60:DD:47:89:C4
   mac_eth0: 00:11:25:C4:35:48
@@ -210,20 +210,20 @@ gdx-137:
   mac_eth1: 00:11:25:C4:4F:E3
   mac_bmc: 00:11:25:91:45:C6
 gdx-164: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:53:A0
+  mac_myri0: 00:60:DD:47:5A:C6
+  mac_eth1: 00:11:25:C4:53:A1
   mac_bmc: 00:11:25:91:47:AE
 gdx-190: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:4E:34
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:4E:35
+  mac_bmc: 00:11:25:91:48:11
 gdx-218: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:35:46
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:35:47
+  mac_bmc: 00:11:25:91:48:D2
 gdx-244: 
   mac_myri0: 00:60:DD:47:89:07
   mac_eth0: 00:11:25:C4:10:FA
@@ -245,20 +245,20 @@ gdx-138:
   mac_eth1: 00:11:25:C4:4D:4B
   mac_bmc: 00:11:25:91:46:22
 gdx-165: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:4D:6A
+  mac_myri0: 00:60:DD:47:5A:C7
+  mac_eth1: 00:11:25:C4:4D:6B
   mac_bmc: 00:11:25:91:45:D0
 gdx-191: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:4E:3A
+  mac_myri0: 00:60:DD:47:86:53
+  mac_eth1: 00:11:25:C4:4E:3B
+  mac_bmc: 00:11:25:91:49:4D
 gdx-219: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:39:A8
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:39:A9
+  mac_bmc: 00:11:25:91:48:AA
 gdx-245: 
   mac_myri0: 00:60:DD:47:7B:FE
   mac_eth0: 00:11:25:C4:3A:4E
@@ -280,15 +280,15 @@ gdx-139:
   mac_eth1: 00:11:25:C4:38:DF
   mac_bmc: 00:11:25:91:45:CF
 gdx-166: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:04:DE
+  mac_myri0: 00:60:DD:47:59:FE
+  mac_eth1: 00:11:25:C4:3A:91
   mac_bmc: 00:11:25:91:47:5C
 gdx-192: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:4E:A8
+  mac_myri0: 00:60:DD:47:86:45
+  mac_eth1: 00:11:25:C4:4E:A9
+  mac_bmc: 00:11:25:91:47:56
 gdx-246: 
   mac_myri0: 00:60:DD:47:86:58
   mac_eth0: 00:11:25:C4:38:E2
@@ -305,10 +305,10 @@ gdx-89:
   mac_eth1: 00:11:25:C4:4E:5D
   mac_bmc: 00:11:25:91:45:CE
 gdx-193: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:4E:14
+  mac_myri0: 00:60:DD:47:86:62
+  mac_eth1: 00:11:25:C4:4E:15
+  mac_bmc: 00:11:25:91:49:12
 gdx-247: 
   mac_myri0: 00:60:DD:47:7B:FD
   mac_eth0: 00:11:25:C4:32:76
@@ -320,15 +320,15 @@ gdx-274:
   mac_eth1: 00:11:25:C4:35:C1
   mac_bmc: 00:11:25:91:45:C9
 gdx-167: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:50:02
+  mac_myri0: 00:60:DD:47:5A:BB
+  mac_eth1: 00:11:25:C4:50:03
   mac_bmc: 00:11:25:91:46:9C
 gdx-194: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:52:D0
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:52:D1
+  mac_bmc: 00:11:25:91:47:74
 gdx-248: 
   mac_myri0: 00:60:DD:47:7B:FC
   mac_eth0: 00:11:25:C4:31:FA
@@ -340,15 +340,15 @@ gdx-275:
   mac_eth1: 00:11:25:C4:11:39
   mac_bmc: 00:11:25:91:45:F0
 gdx-168: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:54:4C
+  mac_myri0: 00:60:DD:47:5A:B2
+  mac_eth1: 00:11:25:C4:54:4D
   mac_bmc: 00:11:25:91:49:17
 gdx-195: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:38:D4
+  mac_myri0: 00:60:DD:47:5A:A3
+  mac_eth1: 00:11:25:C4:38:D5
+  mac_bmc: 00:11:25:91:47:F5
 gdx-249: 
   mac_myri0: 00:60:DD:47:88:62
   mac_eth0: 00:11:25:C4:33:40
@@ -360,20 +360,20 @@ gdx-276:
   mac_eth1: 00:11:25:C4:35:B7
   mac_bmc: 00:09:6B:5E:FB:10
 gdx-169: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:45:B0
+  mac_myri0: 00:60:DD:47:5A:B3
+  mac_eth1: 00:11:25:C4:45:B1
   mac_bmc: 00:11:25:91:48:F0
 gdx-196: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:4F:E4
+  mac_myri0: 00:60:DD:47:7C:0F
+  mac_eth1: 00:11:25:C4:4F:E5
+  mac_bmc: 00:11:25:91:45:7B
 gdx-197: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:51:72
+  mac_myri0: 00:60:DD:47:86:52
+  mac_eth1: 00:11:25:C4:51:73
+  mac_bmc: 00:11:25:91:45:F9
 gdx-277: 
   mac_myri0: 00:60:DD:47:89:87
   mac_eth0: 00:11:25:C4:34:58
@@ -385,10 +385,10 @@ gdx-10:
   mac_eth1: 00:11:25:C4:33:39
   mac_bmc: 00:11:25:91:47:58
 gdx-198: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:4E:C8
+  mac_myri0: 00:60:DD:47:89:0B
+  mac_eth1: 00:11:25:C4:4E:C9
+  mac_bmc: 00:11:25:91:48:95
 gdx-278: 
   mac_myri0: 00:60:DD:47:C7:3E
   mac_eth0: 00:11:25:C4:34:46
@@ -400,10 +400,10 @@ gdx-11:
   mac_eth1: 00:11:25:C4:34:3F
   mac_bmc: 00:11:25:91:48:EE
 gdx-199: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:4E:CC
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:4E:CD
+  mac_bmc: 00:11:25:91:48:99
 gdx-279: 
   mac_myri0: 00:60:DD:47:C7:FD
   mac_eth0: 00:11:25:C4:33:96
@@ -440,10 +440,10 @@ gdx-41:
   mac_eth1: 00:11:25:C4:34:87
   mac_bmc: 00:11:25:91:45:AB
 gdx-200: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:50:D2
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:50:D3
+  mac_bmc: 00:11:25:91:47:C9
 gdx-16: 
   mac_myri0: 00:60:DD:47:68:85
   mac_eth0: 00:11:25:C4:2E:CE
@@ -457,13 +457,13 @@ gdx-42:
 gdx-120: 
   mac_eth0: 00:11:25:C4:4F:D2
   mac_myri0: 00:60:DD:47:5A:94
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:4F:D3
   mac_bmc: 00:11:25:91:48:19
 gdx-201: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:51:B2
+  mac_myri0: 00:60:DD:47:86:51
+  mac_eth1: 00:11:25:C4:51:B3
+  mac_bmc: 00:11:25:91:47:A2
 gdx-17: 
   mac_myri0: 00:60:DD:47:63:85
   mac_eth0: 00:11:25:C4:34:56
@@ -477,7 +477,7 @@ gdx-43:
 gdx-121: 
   mac_eth0: 00:11:25:C4:50:1A
   mac_myri0: 00:60:DD:47:59:7D
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:50:1B
   mac_bmc: 00:11:25:91:48:88
 gdx-18: 
   mac_myri0: 00:60:DD:47:59:6A
@@ -492,27 +492,27 @@ gdx-44:
 gdx-70: 
   mac_eth0: 00:11:25:C4:3C:4A
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:3C:4B
   mac_bmc: 00:11:25:91:46:77
 gdx-122: 
   mac_eth0: 00:11:25:C4:4D:84
   mac_myri0: 00:60:DD:47:59:3F
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:4D:85
   mac_bmc: 00:11:25:91:46:29
 gdx-202: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:53:F8
+  mac_myri0: 00:60:DD:47:86:49
+  mac_eth1: 00:11:25:C4:53:F9
+  mac_bmc: 00:11:25:91:47:A8
 gdx-230: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:35:A6
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:35:A7
+  mac_bmc: 00:11:25:91:45:B4
 gdx-310: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:33:D0
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:33:D1
   mac_bmc: 00:11:25:91:47:A6
 gdx-19: 
   mac_myri0: 00:60:DD:47:5A:54
@@ -530,10 +530,10 @@ gdx-71:
   mac_eth1: 00:11:25:C4:35:79
   mac_bmc: 00:11:25:91:49:1F
 gdx-203: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:4C:FC
+  mac_myri0: 00:60:DD:47:86:48
+  mac_eth1: 00:11:25:C4:4C:FD
+  mac_bmc: 00:11:25:91:45:F5
 gdx-46: 
   mac_myri0: 00:60:DD:47:65:DB
   mac_eth0: 00:11:25:C4:09:C6
@@ -542,12 +542,12 @@ gdx-46:
 gdx-72: 
   mac_eth0: 00:11:25:C4:3E:3C
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:3E:3D
   mac_bmc: 00:11:25:91:46:3D
 gdx-123: 
   mac_eth0: 00:11:25:C4:4E:B0
   mac_myri0: 00:60:DD:47:59:7A
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:4E:B1
   mac_bmc: 00:11:25:91:45:F2
 gdx-150: 
   mac_myri0: 00:60:DD:47:5A:C3
@@ -555,15 +555,15 @@ gdx-150:
   mac_eth1: 00:11:25:C4:4F:03
   mac_bmc: 00:11:25:91:47:B4
 gdx-204: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:4F:04
+  mac_myri0: 00:60:DD:47:86:46
+  mac_eth1: 00:11:25:C4:4F:05
+  mac_bmc: 00:11:25:91:46:16
 gdx-231: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:3C:78
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:3C:79
+  mac_bmc: 00:11:25:91:47:E5
 gdx-47: 
   mac_myri0: 00:60:DD:47:58:F6
   mac_eth0: 00:11:25:C4:35:99
@@ -577,7 +577,7 @@ gdx-73:
 gdx-124: 
   mac_eth0: 00:11:25:C4:4D:C8
   mac_myri0: 00:60:DD:47:66:00
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:4D:C9
   mac_bmc: 00:11:25:91:46:6D
 gdx-151: 
   mac_myri0: 00:60:DD:47:5A:BD
@@ -585,15 +585,15 @@ gdx-151:
   mac_eth1: 00:11:25:C4:53:79
   mac_bmc: 00:11:25:91:45:9D
 gdx-205: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:4F:14
+  mac_myri0: 00:60:DD:47:C4:3F
+  mac_eth1: 00:11:25:C4:4F:15
+  mac_bmc: 00:11:25:91:47:95
 gdx-232: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:38:CA
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:38:CB
+  mac_bmc: 00:11:25:91:45:79
 gdx-48: 
   mac_myri0: 00:60:DD:47:5A:85
   mac_eth0: 00:11:25:C4:2D:6C
@@ -607,7 +607,7 @@ gdx-74:
 gdx-125: 
   mac_eth0: 00:11:25:C4:51:F8
   mac_myri0: 00:60:DD:47:5A:55
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:51:F9
   mac_bmc: 00:11:25:91:46:45
 gdx-152: 
   mac_myri0: 00:60:DD:47:65:B3
@@ -615,10 +615,10 @@ gdx-152:
   mac_eth1: 00:11:25:C4:50:B7
   mac_bmc: 00:11:25:91:49:23
 gdx-206: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:52:64
+  mac_myri0: 00:60:DD:47:86:5E
+  mac_eth1: 00:11:25:C4:52:65
+  mac_bmc: 00:11:25:91:46:54
 gdx-49: 
   mac_myri0: 00:60:DD:47:5A:80
   mac_eth0: 00:11:25:C4:33:16
@@ -632,7 +632,7 @@ gdx-75:
 gdx-126: 
   mac_eth0: 00:11:25:C4:53:0E
   mac_myri0: 00:60:DD:47:88:FD
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:53:0F
   mac_bmc: 00:11:25:91:48:37
 gdx-153: 
   mac_myri0: 00:60:DD:47:65:DA
@@ -640,15 +640,15 @@ gdx-153:
   mac_eth1: 00:11:25:C4:50:A9
   mac_bmc: 00:11:25:91:46:07
 gdx-207: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:4F:B4
+  mac_myri0: 00:60:DD:47:86:59
+  mac_eth1: 00:11:25:C4:4F:B5
+  mac_bmc: 00:11:25:91:48:D5
 gdx-233: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:3C:20
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:3C:21
+  mac_bmc: 00:11:25:91:45:96
 gdx-260: 
   mac_myri0: 00:60:DD:47:7D:B0
   mac_eth0: 00:11:25:C4:33:82
@@ -670,20 +670,20 @@ gdx-154:
   mac_eth1: 00:11:25:C4:4D:2B
   mac_bmc: 00:11:25:91:46:DE
 gdx-180: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:4F:E6
+  mac_myri0: 00:60:DD:47:59:31
+  mac_eth1: 00:11:25:C4:4F:E7
   mac_bmc: 00:11:25:91:45:8F
 gdx-208: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:4F:AE
+  mac_myri0: 00:60:DD:47:86:5A
+  mac_eth1: 00:11:25:C4:4F:AF
+  mac_bmc: 00:11:25:91:46:7D
 gdx-234: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:3C:42
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:3C:43
+  mac_bmc: 00:11:25:91:46:08
 gdx-261: 
   mac_myri0: 00:60:DD:47:88:F8
   mac_eth0: 00:11:25:C4:2D:72
@@ -705,20 +705,20 @@ gdx-155:
   mac_eth1: 00:11:25:C4:50:A3
   mac_bmc: 00:11:25:91:48:BA
 gdx-181: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:53:4A
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:53:4B
+  mac_bmc: 00:11:25:91:45:DD
 gdx-209: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:4E:C4
+  mac_myri0: 00:60:DD:47:89:84
+  mac_eth1: 00:11:25:C4:4E:C5
+  mac_bmc: 00:11:25:91:45:82
 gdx-235: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:35:50
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:35:51
+  mac_bmc: 00:11:25:91:47:EB
 gdx-262: 
   mac_myri0: 00:60:DD:47:7D:11
   mac_eth0: 00:11:25:C4:34:E8
@@ -735,10 +735,10 @@ gdx-129:
   mac_eth1: 00:11:25:C4:4D:81
   mac_bmc: 00:11:25:91:45:FB
 gdx-182: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:52:88
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:52:89
+  mac_bmc: 00:11:25:91:47:A0
 gdx-236: 
   mac_myri0: 00:60:DD:47:89:D1
   mac_eth0: 00:11:25:C4:39:AC
@@ -760,10 +760,10 @@ gdx-156:
   mac_eth1: 00:11:25:C4:0B:07
   mac_bmc: 00:11:25:91:48:76
 gdx-183: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:4F:5E
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:4F:5F
+  mac_bmc: 00:11:25:91:47:91
 gdx-237: 
   mac_myri0: 00:60:DD:47:89:CF
   mac_eth0: 00:11:25:C4:3C:80
@@ -775,20 +775,20 @@ gdx-264:
   mac_eth1: 00:11:25:C4:33:5F
   mac_bmc: 00:11:25:91:48:14
 gdx-290: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:33:7C
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:33:7D
+  mac_bmc: 00:11:25:91:48:A4
 gdx-157: 
   mac_myri0: 00:60:DD:47:5A:B8
   mac_eth0: 00:11:25:C4:52:CA
   mac_eth1: 00:11:25:C4:52:CB
   mac_bmc: 00:11:25:91:47:71
 gdx-184: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:4E:08
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:4E:09
+  mac_bmc: 00:11:25:91:46:3B
 gdx-238: 
   mac_myri0: 00:60:DD:47:7D:7D
   mac_eth0: 00:11:25:C4:3C:7E
@@ -797,7 +797,7 @@ gdx-238:
 gdx-265: 
   mac_eth0: 00:11:25:C4:34:64
   mac_myri0: 00:60:DD:47:5A:1F
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:34:65
   mac_bmc: 00:11:25:91:46:36
 gdx-291: 
   mac_myri0: 00:60:DD:47:C7:FA
@@ -810,10 +810,10 @@ gdx-158:
   mac_eth1: 00:11:25:C4:54:47
   mac_bmc: 00:11:25:91:46:B3
 gdx-185: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:53:B6
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:53:B7
+  mac_bmc: 00:11:25:91:46:A0
 gdx-239: 
   mac_myri0: 00:60:DD:47:7D:97
   mac_eth0: 00:11:25:C4:3F:50
@@ -830,10 +830,10 @@ gdx-159:
   mac_eth1: 00:11:25:C4:4F:83
   mac_bmc: 00:11:25:91:48:0D
 gdx-186: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:4E:48
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:4E:49
+  mac_bmc: 00:11:25:91:47:F6
 gdx-266: 
   mac_myri0: 00:60:DD:47:89:8B
   mac_eth0: 00:11:25:C4:34:8A
@@ -845,14 +845,14 @@ gdx-293:
   mac_eth1: 00:11:25:C4:33:4B
   mac_bmc: 00:11:25:91:43:D8
 gdx-187: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:4E:70
+  mac_myri0: 00:60:DD:47:86:54
+  mac_eth1: 00:11:25:C4:4E:71
+  mac_bmc: 00:11:25:91:48:58
 gdx-267: 
   mac_eth0: 00:11:25:C4:35:36
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:35:37
   mac_bmc: 00:11:25:91:45:AE
 gdx-294: 
   mac_myri0: 00:60:DD:47:89:78
@@ -860,10 +860,10 @@ gdx-294:
   mac_eth1: 00:11:25:C4:33:25
   mac_bmc: 00:11:25:91:47:EF
 gdx-188: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:52:4E
+  mac_myri0: 00:60:DD:47:7C:63
+  mac_eth1: 00:11:25:C4:52:4F
+  mac_bmc: 00:11:25:91:47:30
 gdx-268: 
   mac_myri0: 00:60:DD:47:89:C7
   mac_eth0: 00:11:25:C4:34:4E
@@ -885,10 +885,10 @@ gdx-296:
   mac_eth1: 00:11:25:C4:20:07
   mac_bmc: 00:11:25:91:47:AB
 gdx-189: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:52:46
+  mac_myri0: 00:60:DD:47:86:57
+  mac_eth1: 00:11:25:C4:52:47
+  mac_bmc: 00:11:25:91:48:5F
 gdx-297: 
   mac_myri0: 00:60:DD:47:89:85
   mac_eth0: 00:11:25:C4:33:3C
@@ -917,7 +917,7 @@ gdx-32:
 gdx-110: 
   mac_eth0: 00:11:25:C4:51:A4
   mac_myri0: 00:60:DD:47:5A:A7
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:51:A5
   mac_bmc: 00:11:25:91:45:DE
 gdx-299: 
   mac_myri0: 00:60:DD:47:89:0E
@@ -932,7 +932,7 @@ gdx-33:
 gdx-111: 
   mac_eth0: 00:11:25:C4:50:30
   mac_myri0: 00:60:DD:47:65:C2
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:50:31
   mac_bmc: 00:11:25:91:46:7C
 gdx-34: 
   mac_myri0: 00:60:DD:47:5A:91
@@ -942,7 +942,7 @@ gdx-34:
 gdx-60: 
   mac_eth0: 00:11:25:C4:3E:2C
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:3E:2D
   mac_bmc: 00:11:25:91:46:57
 gdx-35: 
   mac_myri0: 00:60:DD:47:65:BB
@@ -952,18 +952,18 @@ gdx-35:
 gdx-61: 
   mac_eth0: 00:11:25:C4:4E:10
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:4E:11
   mac_bmc: 00:11:25:91:48:B3
 gdx-112: 
   mac_eth0: 00:11:25:C4:4F:C6
   mac_myri0: 00:60:DD:47:65:4F
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:4F:C7
   mac_bmc: 00:11:25:91:48:7F
 gdx-220: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:3C:6A
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:3C:6B
+  mac_bmc: 00:11:25:91:48:39
 gdx-300: 
   mac_myri0: 00:60:DD:47:89:1B
   mac_eth0: 00:11:25:C4:33:14
@@ -977,12 +977,12 @@ gdx-36:
 gdx-62: 
   mac_eth0: 00:11:25:C4:3C:62
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:3C:63
   mac_bmc: 00:11:25:91:45:BB
 gdx-113: 
   mac_eth0: 00:11:25:C4:51:48
   mac_myri0: 00:60:DD:47:5A:56
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:51:49
   mac_bmc: 00:11:25:91:45:9C
 gdx-140: 
   mac_myri0: 00:60:DD:47:59:62
@@ -990,10 +990,10 @@ gdx-140:
   mac_eth1: 00:11:25:C4:24:03
   mac_bmc: 00:11:25:91:48:32
 gdx-221: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:3D:96
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:3D:97
+  mac_bmc: 00:11:25:91:45:C3
 gdx-301: 
   mac_myri0: 00:60:DD:47:89:93
   mac_eth0: 00:11:25:C4:35:06
@@ -1002,12 +1002,12 @@ gdx-301:
 gdx-63: 
   mac_eth0: 00:11:25:C4:3B:B4
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:3B:B5
   mac_bmc: 00:11:25:91:45:B2
 gdx-114: 
   mac_eth0: 00:11:25:C4:53:00
   mac_myri0: 00:60:DD:47:66:01
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:53:01
   mac_bmc: 00:11:25:91:47:AA
 gdx-141: 
   mac_myri0: 00:60:DD:47:5A:B7
@@ -1027,7 +1027,7 @@ gdx-37:
 gdx-64: 
   mac_eth0: 00:11:25:C4:39:86
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:39:87
   mac_bmc: 00:11:25:91:45:AF
 gdx-90: 
   mac_myri0: 00:60:DD:47:59:02
@@ -1037,7 +1037,7 @@ gdx-90:
 gdx-115: 
   mac_eth0: 00:11:25:C4:4E:44
   mac_myri0: 00:60:DD:47:65:B9
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:4E:45
   mac_bmc: 00:11:25:91:48:5C
 gdx-142: 
   mac_myri0: 00:60:DD:47:59:B6
@@ -1045,10 +1045,10 @@ gdx-142:
   mac_eth1: 00:11:25:C4:4F:D9
   mac_bmc: 00:11:25:91:46:41
 gdx-222: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:39:54
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:39:55
+  mac_bmc: 00:11:25:91:48:16
 gdx-303: 
   mac_myri0: 00:60:DD:47:89:7D
   mac_eth0: 00:11:25:C4:0F:10
@@ -1062,12 +1062,12 @@ gdx-38:
 gdx-91: 
   mac_eth0: 00:11:25:C4:51:4C
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:51:4D
   mac_bmc: 00:11:25:91:46:1C
 gdx-116: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:52:A2
+  mac_myri0: 00:60:DD:47:59:39
+  mac_eth1: 00:11:25:C4:52:A3
   mac_bmc: 00:11:25:91:45:BA
 gdx-143: 
   mac_myri0: 00:60:DD:47:5A:B9
@@ -1075,10 +1075,10 @@ gdx-143:
   mac_eth1: 00:11:25:C4:4F:AB
   mac_bmc: 00:11:25:91:48:33
 gdx-223: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:3C:14
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:3C:15
+  mac_bmc: 00:11:25:91:48:A4
 gdx-250: 
   mac_myri0: 00:60:DD:47:7B:FF
   mac_eth0: 00:11:25:C4:3B:9A
@@ -1095,15 +1095,15 @@ gdx-39:
   mac_eth1: 00:11:25:C4:34:4B
   mac_bmc: 00:11:25:91:45:A8
 gdx-65: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:3C:4C
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:3C:4D
+  mac_bmc: 00:11:25:91:46:C0
 gdx-66: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:3B:E0
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:3B:E1
+  mac_bmc: 00:11:25:91:46:E1
 gdx-305: 
   mac_myri0: 00:60:DD:47:88:B0
   mac_eth0: 00:11:25:C4:34:62
@@ -1122,33 +1122,33 @@ gdx-144:
 gdx-117: 
   mac_eth0: 00:11:25:C4:52:EC
   mac_myri0: 00:60:DD:47:65:BC
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:52:ED
   mac_bmc: 00:11:25:91:45:94
 gdx-92: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:4D:82
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:4D:83
+  mac_bmc: 00:11:25:91:46:4D
 gdx-170: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:4D:00
+  mac_myri0: 00:60:DD:47:59:66
+  mac_eth1: 00:11:25:C4:4D:01
   mac_bmc: 00:11:25:91:48:3D
 gdx-224: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:39:00
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:39:01
+  mac_bmc: 00:11:25:91:46:7E
 gdx-93: 
   mac_eth0: 00:11:25:C4:4F:A6
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:4F:A7
   mac_bmc: 00:11:25:91:48:2F
 gdx-67: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:35:66
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:35:67
+  mac_bmc: 00:11:25:91:47:09
 gdx-306: 
   mac_myri0: 00:60:DD:47:89:96
   mac_eth0: 00:11:25:C4:41:5A
@@ -1162,32 +1162,32 @@ gdx-252:
 gdx-118: 
   mac_eth0: 00:11:25:C4:53:EA
   mac_myri0: 00:60:DD:47:66:1B
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:53:EB
   mac_bmc: 00:11:25:91:48:5B
 gdx-171: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:4D:08
+  mac_myri0: 00:60:DD:47:65:A9
+  mac_eth1: 00:11:25:C4:4D:09
   mac_bmc: 00:11:25:91:45:FC
 gdx-225: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:38:D0
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:38:D1
+  mac_bmc: 00:11:25:91:46:AE
 gdx-119: 
   mac_eth0: 00:11:25:C4:51:AC
   mac_myri0: 00:60:DD:47:65:C1
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:51:AD
   mac_bmc: 00:11:25:91:46:15
 gdx-94: 
   mac_eth0: 00:11:25:C4:53:FC
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:53:FD
   mac_bmc: 00:11:25:91:48:05
 gdx-68: 
   mac_eth0: 00:11:25:C4:3C:18
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:3C:19
   mac_bmc: 00:11:25:91:48:9E
 gdx-253: 
   mac_myri0: 00:60:DD:47:C7:FB
@@ -1200,29 +1200,29 @@ gdx-145:
   mac_eth1: 00:11:25:C4:50:21
   mac_bmc: 00:11:25:91:45:AD
 gdx-172: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:54:18
+  mac_myri0: 00:60:DD:47:65:BF
+  mac_eth1: 00:11:25:C4:54:19
   mac_bmc: 00:11:25:91:45:92
 gdx-226: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:38:F6
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:38:F7
+  mac_bmc: 00:11:25:91:48:35
 gdx-307: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:33:4C
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:33:4D
   mac_bmc: 00:11:25:91:46:FE
 gdx-95: 
   mac_eth0: 00:11:25:C4:4F:30
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:4F:31
   mac_bmc: 00:11:25:91:45:F7
 gdx-69: 
   mac_eth0: 00:11:25:C4:34:82
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:34:83
   mac_bmc: 00:11:25:91:47:B3
 gdx-280: 
   mac_myri0: 00:60:DD:47:C7:FC
@@ -1240,19 +1240,19 @@ gdx-146:
   mac_eth1: 00:11:25:C4:4D:4D
   mac_bmc: 00:11:25:91:46:B4
 gdx-173: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:51:DA
+  mac_myri0: 00:60:DD:47:65:C3
+  mac_eth1: 00:11:25:C4:51:DB
   mac_bmc: 00:11:25:91:45:EA
 gdx-227: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:34:52
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:39:8F
+  mac_bmc: 00:14:5E:65:C6:4A
 gdx-308: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:32:6A
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:32:6B
   mac_bmc: 00:11:25:91:46:66
 gdx-147: 
   mac_myri0: 00:60:DD:47:59:79
@@ -1262,7 +1262,7 @@ gdx-147:
 gdx-96: 
   mac_eth0: 00:11:25:C4:50:A6
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:50:A7
   mac_bmc: 00:11:25:91:45:EE
 gdx-281: 
   mac_myri0: 00:60:DD:47:C7:7D
@@ -1270,19 +1270,19 @@ gdx-281:
   mac_eth1: 00:11:25:C4:33:19
   mac_bmc: 00:11:25:91:45:7F
 gdx-174: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:4F:46
+  mac_myri0: 00:60:DD:47:65:A8
+  mac_eth1: 00:11:25:C4:4F:47
   mac_bmc: 00:11:25:91:45:FA
 gdx-228: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:32:A6
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:32:A7
+  mac_bmc: 00:11:25:91:46:0C
 gdx-309: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:33:30
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:33:31
   mac_bmc: 00:11:25:91:45:F6
 gdx-148: 
   mac_myri0: 00:60:DD:47:5A:79
@@ -1290,9 +1290,9 @@ gdx-148:
   mac_eth1: 00:11:25:C4:51:07
   mac_bmc: 00:11:25:91:47:FC
 gdx-97: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:4F:06
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:4F:07
   mac_bmc: 00:11:25:91:45:7A
 gdx-282: 
   mac_myri0: 00:60:DD:47:89:1C
@@ -1305,15 +1305,15 @@ gdx-255:
   mac_eth1: 00:11:25:C4:09:87
   mac_bmc: 00:11:25:91:48:BC
 gdx-175: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:4F:AC
+  mac_myri0: 00:60:DD:47:65:BA
+  mac_eth1: 00:11:25:C4:4F:AD
   mac_bmc: 00:11:25:91:48:EB
 gdx-229: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:3C:76
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:3C:77
+  mac_bmc: 00:11:25:91:45:8A
 gdx-149: 
   mac_myri0: 00:60:DD:47:5A:C1
   mac_eth0: 00:11:25:C4:4F:C0
@@ -1322,7 +1322,7 @@ gdx-149:
 gdx-98: 
   mac_eth0: 00:11:25:C4:4E:1A
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:4E:1B
   mac_bmc: 00:11:25:91:47:BB
 gdx-283: 
   mac_myri0: 00:60:DD:47:89:86
@@ -1335,14 +1335,14 @@ gdx-256:
   mac_eth1: 00:11:25:C4:35:91
   mac_bmc: 00:11:25:91:47:F0
 gdx-176: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:4F:CA
+  mac_myri0: 00:60:DD:47:66:03
+  mac_eth1: 00:11:25:C4:4F:CB
   mac_bmc: 00:11:25:91:48:EA
 gdx-99: 
   mac_eth0: 00:11:25:C4:4F:3E
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:4F:3F
   mac_bmc: 00:11:25:91:45:C2
 gdx-257: 
   mac_myri0: 00:60:DD:47:C7:F6
@@ -1350,14 +1350,14 @@ gdx-257:
   mac_eth1: 00:11:25:C4:35:63
   mac_bmc: 00:11:25:91:47:E2
 gdx-177: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:4F:C4
+  mac_myri0: 00:60:DD:47:66:04
+  mac_eth1: 00:11:25:C4:4F:C5
   mac_bmc: 00:11:25:91:47:8B
 gdx-284: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:49:DE
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:49:DF
   mac_bmc: 00:11:25:91:45:A2
 gdx-285: 
   mac_myri0: 00:60:DD:47:89:CC
@@ -1380,9 +1380,9 @@ gdx-259:
   mac_eth1: 00:11:25:C4:35:6B
   mac_bmc: 00:11:25:91:49:15
 gdx-178: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:50:0A
+  mac_myri0: 00:60:DD:47:65:D8
+  mac_eth1: 00:11:25:C4:50:0B
   mac_bmc: 00:11:25:91:45:C7
 gdx-1: 
   mac_myri0: 00:60:DD:47:5A:A4
@@ -1395,9 +1395,9 @@ gdx-287:
   mac_eth1: 00:11:25:C4:34:41
   mac_bmc: 00:11:25:91:46:33
 gdx-179: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
+  mac_eth0: 00:11:25:C4:50:76
+  mac_myri0: 00:60:DD:47:65:B4
+  mac_eth1: 00:11:25:C4:50:77
   mac_bmc: 00:11:25:91:46:14
 gdx-20: 
   mac_myri0: 00:60:DD:47:88:F7
@@ -1405,10 +1405,10 @@ gdx-20:
   mac_eth1: 00:11:25:C4:35:53
   mac_bmc: 00:11:25:91:45:7C
 gdx-21: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:35:A8
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:35:A9
+  mac_bmc: 00:11:25:91:47:F8
 gdx-2: 
   mac_myri0: 00:60:DD:47:59:75
   mac_eth0: 00:11:25:C4:35:56
@@ -1480,9 +1480,9 @@ gdx-51:
   mac_eth1: 00:11:25:C4:49:8F
   mac_bmc: 00:11:25:91:45:C1
 gdx-25: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:35:1C
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:35:1D
   mac_bmc: 00:11:25:91:47:A1
 gdx-6: 
   mac_myri0: 00:60:DD:47:59:77
@@ -1490,10 +1490,10 @@ gdx-6:
   mac_eth1: 00:11:25:C4:35:1F
   mac_bmc: 00:11:25:91:48:17
 gdx-210: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:4E:94
+  mac_myri0: 00:60:DD:47:89:D0
+  mac_eth1: 00:11:25:C4:4E:95
+  mac_bmc: 00:11:25:91:45:AA
 gdx-130: 
   mac_myri0: 00:60:DD:47:59:FD
   mac_eth0: 00:11:25:C4:54:6A
@@ -1515,10 +1515,10 @@ gdx-26:
   mac_eth1: 00:11:25:C4:35:A5
   mac_bmc: 00:11:25:91:48:A5
 gdx-7: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:35:92
   mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth1: 00:11:25:C4:35:93
+  mac_bmc: 00:11:25:91:46:05
 gdx-131: 
   mac_myri0: 00:60:DD:47:59:6B
   mac_eth0: 00:11:25:C4:54:86
@@ -1530,9 +1530,9 @@ gdx-104:
   mac_eth1: 00:11:25:C4:52:4B
   mac_bmc: 00:11:25:91:47:78
 gdx-53: 
-  mac_eth0: nil
+  mac_eth0: 00:11:25:C4:3B:F6
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:3B:F7
   mac_bmc: 00:11:25:91:47:B1
 gdx-27: 
   mac_myri0: 00:60:DD:47:59:33
@@ -1542,10 +1542,10 @@ gdx-27:
 gdx-8: 
   mac_eth0: 00:11:25:C4:35:C2
   mac_myri0: nil
-  mac_eth1: nil
+  mac_eth1: 00:11:25:C4:35:C3
   mac_bmc: 00:11:25:91:46:3F
 gdx-211: 
-  mac_eth0: nil
-  mac_myri0: nil
-  mac_eth1: nil
-  mac_bmc: nil
+  mac_eth0: 00:11:25:C4:4F:94
+  mac_myri0: 00:60:DD:47:86:5C
+  mac_eth1: 00:11:25:C4:4F:95
+  mac_bmc: 00:11:25:91:48:38