We are facing problem like that behind firewall , i mean to say that we are running ISP in Linux redhat 7,1 n we are configuring the ipchains in linux server behind firewall we are not getting to open or play yahoo games behind firewall we are using provet ips n at linuxfirewall m/c we masqurade all prove ips n go to one gateway our firewall configuration is
input ---->ACCEPT
output-->ACCEPT
forward-->MASQ