I've been trying some rules out and nothing seems to work. I have 2 games that I would like to play through my IPTABLES firewall: Motorcross Madness 2 and the Age of Empires Series. The following is what I wrote this morning, at work, and I can't test it until I get home. Am I thinking about this correctly? Do I have to allow the ports also through the INPUT and OUTPUT chains? If anyone has a working set for MSN Gaming Zone please... PLEASE post it. If I get something to work I will definately post it here. Thanks

[edited to say that 192.168.1.30 is my windows machine on the private network]

##############################################################################
# Open up ports for MSN Gaming Zone
$IPTABLES -t nat -A PREROUTING -p tcp --dport 47624 -i $extint -j DNAT --to-destination 192.168.1.30:47642
$IPTABLES -t nat -A PREROUTING -p tcp --dport 6073 -i $extint -j DNAT --to-destination 192.168.1.30:6073
$IPTABLES -t nat -A PREROUTING -p tcp --dport 6667 -i $extint -j DNAT --to-destination 192.168.1.30:6667

i=2300
while [ "$i" -le "2400" ]
do
$IPTABLES -t nat -A PREROUTING -p tcp --dport $i -i $extint -j DNAT --to-destination 192.168.1.30:$i
$IPTABLES -t nat -A PREROUTING -p udp --dport $i -i $extint -j DNAT --to-destination 192.168.1.30:$i
let "i+=1"
done

i=28800
while [ "$i" -le "29000" ]
do
$IPTABLES -t nat -A PREROUTING -p tcp --dport $i -i $extint -j DNAT --to-destination 192.168.1.30:$i
let "i+=1"
done

May be of some use to you

http://www.tsmservices.com/masq/

Hope this is of use to you

Have Fun

I actually found a ruleset that finally worked, MonMotha's Firewall 2.3.7-pre7 and edited it to my needs. Thanks for the response though

FnA