TCP/IP & Firewalls - Help Please

Warlin · December 4, 2002, 17:06

Hi all

I finally got my friend hooked on playing AC. We played a few times over the summer when he was over. We had used a crossover cable for a direct connection back then, and it worked great. Now he's on the other side of the state, so a direct dialup connection between the two computers is impossible (phone bill).

So we tried tcp/ip. It doesn't matter if it's me or if it's him hosting. We both cannot find the hosted game. Now I did a little poking around last night and found out that we both have firewalls built into the router (mine is a linksys and his is a d-link). So I do a lot of searching all over this site and the internet, but I can't seem to find any mention at all for which ports I need to set for port forwarding. Anybody have any luck getting tcp/ip games to work behind firewalls? Any help would be appreciated.

Warren

Main_Brain · December 5, 2002, 21:30

Mhh if noone answers you should try asking in the Mutliplaying section.

but I took a look arround and found over this
http://www.stack-style.org/SidGame/netgame.html
this Page: http://faqs.lokigames.com/smacfaq.html#111
which states:

Quote:

11.1 Behind a Firewall/Masq Server

There should be no difficulties joining a game from behind a firewall or while being IP masqueraded.
Hosting from behind a firewall is a little tricker. Basically, the masqing firewall needs to include port forwarding. For details, try the HOWTO (http://www.linuxdoc.org/HOWTO/IP-Mas...tml#Forwarders).

Assuming that everything is configured as required, you need to forward the necessary UDP ports from your firewall to your internal machine. The examples below assume a 2.2.x kernel.

ipmasqadm portfw -a -P udp -L 1.2.3.4 32292 -R 192.168.100.4 32292
ipmasqadm portfw -a -P udp -L 1.2.3.4 32293 -R 192.168.100.4 32293
ipmasqadm portfw -a -P udp -L 1.2.3.4 32294 -R 192.168.100.4 32294
ipmasqadm portfw -a -P udp -L 1.2.3.4 32295 -R 192.168.100.4 32295
ipmasqadm portfw -a -P udp -L 1.2.3.4 32296 -R 192.168.100.4 32296

Here, 1.2.3.4 is the external address on the firewall. 192.168.100.4 is the internal address of my local machine. 32292-32296 are the ports used by SMAC.
Special thanks to Walt, from the SMAC list, for this tip!

On a second Look I doubt this does help. (Lx)