ironwail
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NAT Punchthrough
Playing online with friends right now is a bit convoluted and the easiest way out is using something like Hamachi. In FTEQW sv_public 2
uses TCP to connect to the master server instead of UDP, which allows the client and server to exchange address information.
https://sourceforge.net/p/fteqw/code/HEAD/tree/trunk/engine/server/sv_main.c#l120