Question about Router ports for hosting coop

[41Sqn_Banks]

This is what I did to host a server: Forward the port used by IL-2 COD to the IP used of the pc. By default this is 27015 or 27016 (for dedicated server), but just forward both. Don't know if its udp or tcp, again just forward both.

Then use the "lobby" to host the server, because this guarantees that the server is shown in the list.

Edit: It's important that the ports are not only open but also forwarded to the IP of the pc.