changed it to do both tcp and udp

.env.example

@@ -0,0 +1,13 @@
+ROUTER_HOST=192.168.0.1
+ROUTER_USER=username
+ROUTER_PASS=password
+
+WEBHOOK_SECRET=secret
+
+ROUTER_WAN_IF=gi0
+
+BIND_ADDRESS=192.168.0.2
+
+ADMIN_PASS=password
+
+PORT=3000

services/natQueue.js

@@ -26,7 +26,8 @@ export function enqueueNatAdd(ip, port, proto='tcp') {
         info(`NAT ADD ${proto} ${ip}:${port}`);
         await runRouterCmds([
             'conf t',
-            `ip nat inside source static ${proto} ${ip} ${port} interface ${process.env.ROUTER_WAN_IF || 'gi0'} ${port}`,
+            `ip nat inside source static tcp ${ip} ${port} interface ${process.env.ROUTER_WAN_IF || 'gi0'} ${port}`,
+            `ip nat inside source static udp ${ip} ${port} interface ${process.env.ROUTER_WAN_IF || 'gi0'} ${port}`,
             'end',
             'wr mem'
         ]);