ports to open behind a router

[frutiger]

hello to everybody!

I'm new here, so there is a change that this question is answered already, but i cannot find it.
My question is: which ports must I open to setup a multiplayer Civ2 game as a host?

[rah]

4993

For more info check

http://apolyton.net/forums/showthread.php?s=&threadid=105557

[frutiger]

thank you!

[rah]

No problem. That question gets asked quite frequently. I just had to do it quite recently myself.