Test using Jool for IPv4 -> 6 port forwarding

machine-confs/exoplasim.nix

@@ -20,6 +20,10 @@
           #            presharedKeyFile = "/root/wireguard-keys/psk";
           #            allowedIPs = [ "10.0.0.2/32" ];
           #          }
+          {
+            publicKey = "9FOmHXs0CmDlW61noS7DqhgH5GfQHzg8ZMasyNQACSc=";
+            allowedIPs = [ "10.0.0.2/32" ];
+          }
         ];
       };
     };

services/nat64.nix

@@ -2,6 +2,44 @@
 {
   networking.jool = {
     enable = true;
-    nat64.default = { };
+    nat64.default = {
+      global.pool6 = "64:ff9b::/96"; # Default value made explicit for clarity
+
+      # Port forwarding
+      bib = [
+        {
+          # ExoPlaSim WireGuard
+          "protocol" = "UDP";
+          "ipv4 address" = "192.168.1.1#51821";
+          "ipv6 address" = "fd08:d473:bcca:0:699b:fcbf:f142:225c#51821";
+        }
+      ];
+
+      pool4 = [
+        # Port ranges for dynamic translation
+        {
+          protocol = "TCP";
+          prefix = "192.168.1.1/32";
+          "port range" = "30001-50000";
+        }
+        {
+          protocol = "UDP";
+          prefix = "192.168.1.1/32";
+          "port range" = "30001-50000";
+        }
+        {
+          protocol = "ICMP";
+          prefix = "192.168.1.1/32";
+          "port range" = "30001-50000";
+        }
+
+        # Ports for static BIB entries
+        {
+          protocol = "UDP";
+          prefix = "192.168.1.1/32";
+          "port range" = "51821";
+        }
+      ];
+    };
   };
 }