diff --git a/flake.lock b/flake.lock
index 16108da..58a6f10 100644
--- a/flake.lock
+++ b/flake.lock
@@ -202,11 +202,11 @@
     },
     "secrets": {
       "locked": {
-        "lastModified": 1762546175,
-        "narHash": "sha256-ZYhCCN6dUlRoyzqFaU3oIG85NQZ2QwrOle8ZwlPorg0=",
+        "lastModified": 1762547267,
+        "narHash": "sha256-bDYmYBJxtsSES+gcpHfpnURA7QDJ3cC1Mg2jzQl5zdg=",
         "ref": "refs/heads/main",
-        "rev": "774bacddc5d28ea3083d6e31a29549bbe738418b",
-        "revCount": 16,
+        "rev": "601b97ba998f743a333fe7523dd5825816155778",
+        "revCount": 17,
         "type": "git",
         "url": "ssh://gitea@git.bulthuis.dev/Jan/nixos-secrets"
       },
diff --git a/hosts/vm-infra/configuration.nix b/hosts/vm-infra/configuration.nix
index 3a646f3..642d5ad 100644
--- a/hosts/vm-infra/configuration.nix
+++ b/hosts/vm-infra/configuration.nix
@@ -28,15 +28,20 @@
         prefixLength = 16;
       };
     };
-    ipv6 = {
-      address = "${inputs.secrets.lab.network.ula.prefixBase}::6464";
-      router = {
-        address = "64::ff9b::1";
+    ipv6 =
+      let
+        ula = inputs.secrets.lab.network.ula.prefixBase;
+        net = toString inputs.secrets.lab.network.vlan.lab;
+      in
+      {
+        address = "${ula}:${net}::6464";
+        router = {
+          address = "64::ff9b::1";
+        };
+        pool = {
+          address = "64:ff9b::";
+          prefixLength = 96;
+        };
       };
-      pool = {
-        address = "64:ff9b::";
-        prefixLength = 96;
-      };
-    };
   };
 }