diff --git a/hosts/pre-router/configuration.nix b/hosts/pre-router/configuration.nix
index 2c28df9..adf69f9 100644
--- a/hosts/pre-router/configuration.nix
+++ b/hosts/pre-router/configuration.nix
@@ -48,6 +48,12 @@
   networking.interfaces.ens19.ipv4.addresses = [
     { address = "10.42.10.25"; prefixLength = 24; }
   ];
+  networking.interfaces.ens19.ipv6.routes = [
+    { address = "fd00:10:42::"; prefixLength = 48; via = "fd00:10:42:10::1"; }
+  ];
+  networking.interfaces.ens19.ipv4.routes = [
+    { address = "10.42.0.0"; prefixLength = 16; via = "10.42.10.1"; }
+  ];
 
   networking.wireguard = {
     enable = true;