diff --git a/profiles/hel.nix b/profiles/hel.nix
index d1a9f5e..eda1676 100644
--- a/profiles/hel.nix
+++ b/profiles/hel.nix
@@ -70,6 +70,18 @@
       internalInterfaces = [ "ve-+" ];
       externalInterface = "enp41s0";
     };
+    interfaces.enp41s0 = {
+      ipv6.addresses = [
+        {
+          address = "2a01:4f9:3100:1202::2";
+          prefixLength = 64;
+        }
+      ];
+    };
+    defaultGateway6 = {
+      address = "fe80::1";
+      interface = "enp41s0";
+    };
   };
 
   disko.devices = {