diff --git a/hosts/physiques/cephiroth/ceph.nix b/hosts/physiques/cephiroth/ceph.nix
index e681403..888cd26 100644
--- a/hosts/physiques/cephiroth/ceph.nix
+++ b/hosts/physiques/cephiroth/ceph.nix
@@ -13,6 +13,10 @@
       # je propose comme convention, entier suivi de l'id à 2 chiffre de la machine
       # les machines physique ont des id < 100, donc ca fonctionne
       daemons = ["0" "1" "2" "3" "4" "5" "6" "7" "8" "9" "10" "11"];
+      extraConfig = {
+        "public_addr" = "172.16.4.3";
+        "cluster_addr" = "172.16.6.3";
+      };
     };
 
     # monitor, garde la map du cluster
@@ -48,8 +52,8 @@
       fsid = "af0a334a-3356-4fb6-800c-95b4a99232c0";
       monHost = "172.16.4.3";
       monInitialMembers = "cephiroth";
-      publicNetwork = "172.16.4.0/8";
-      clusterNetwork = "172.16.6.0/8";
+      publicNetwork = "172.16.4.0/24";
+      clusterNetwork = "172.16.6.0/24";
     };
 
     client = {