diff --git a/machines/Ophanim/hardware-configuration.nix b/machines/Ophanim/hardware-configuration.nix
index 5f05b91..81451cf 100644
--- a/machines/Ophanim/hardware-configuration.nix
+++ b/machines/Ophanim/hardware-configuration.nix
@@ -107,7 +107,21 @@
   # (the default) this is the recommended approach. When using systemd-networkd it's
   # still possible to use this option, but it's recommended to use it in conjunction
   # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
-  networking.useDHCP = lib.mkDefault true;
+  networking = {
+    useDHCP = lib.mkDefault true;
+    interfaces = {
+      ens3.ipv6.addresses = [
+        {
+          address = "2a0a:4cc0:c0:101::1";
+          prefixLength = 64;
+        }
+      ];
+    };
+    defaultGateway6 = {
+      address = "fe80::1";
+      interface = "ens3";
+    };
+  };
 
   time.timeZone = "Europe/Berlin";
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";