diff --git a/modules/core/network.nix b/modules/core/network.nix
index 2a2246f..f44cfa7 100644
--- a/modules/core/network.nix
+++ b/modules/core/network.nix
@@ -34,6 +34,11 @@ in
             description = "The network interface name.";
           };
 
+          type = mkOption {
+            type = types.enum [ "lan" "wan" "tailscale" ];
+            description = "The type of interface (lan, wan, or vpn/tailscale).";
+          };
+
           net = mkOption {
             type = types.str;
             description = "The network address in CIDR format.";
@@ -62,4 +67,13 @@ in
       description = "An attribute set of networks with their configurations.";
     };
   };
+  
+  config = {
+    # Create lists of interfaces by type for easy access elsewhere
+    pepe.core.network.interfacesByType = {
+      lan = lib.filterAttrs (_: iface: iface.type == cfg.interfaceTypes.lan) cfg.interfaces;
+      wan = lib.filterAttrs (_: iface: iface.type == cfg.interfaceTypes.wan) cfg.interfaces;
+      vpn = lib.filterAttrs (_: iface: iface.type == cfg.interfaceTypes.vpn) cfg.interfaces;
+    };
+  };
 }