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Okay.. My problem is three-fold...

First, some background info. The masq'd box on a cable modem, Linux 2.2.10,
has the FSGS (pseudo-Battle.Net server) running on it. Parties from both
outside and inside the network can talk to the fsgs server, and chatting
works fine (two people outside, and three people behind the masq'd box). The
server is listening on the external IP address.

However, if someone on the inside wants to host a game, no one outside the
firewall can see it. This sorta makes sense. But, if I'm the only one inside
my LAN, and x people are outside, I could use portfw'ing to statically map
the used ports to my machine, correct? Well, I tried that. I couldn't talk
to the fsgs server using the external IP address (since it would just
re-route back to my own machine). I was told that battle.net (or fsgs) uses
tcp during the chat mode, and then switches to udp for the game (or vice
versa). So I tried forwarding only one tcp (and then only udp) packets on
port 6112, but it didn't seem to work. Any ideas? Can fsgs listen on more
than one IP address, an external and internal one?

Second problem is that when we got a 5 player game going, 2 outside, 3
inside, with someone outside the FW hosting, the game was EXTREMELY slow..
But when the other two inside LAN quit, the game sped up to blazingly fast
speeds! Now, you might think that it's their computers that are lagging..
Well, I played games internally over ipx, and they were just fine, which
rules out their computers being slow, and also rules out the network card
being flaky. Any ideas why this is happening?

Third problem, is that during that 5 player game. The people inside the LAN
could communicate with people outside, but we couldn't chat each other
during the game. (in the Chat rooms, it worked fine).

So, has anyone else seen problems like this, and/or knows how to fix them?

Cheers,
Will


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