Siemens 2 port router

[fbiwicked]

hi
i recently bought a siemens 2 port router and i cant seem to figure out how to open the ports to let people get through the router...

for example, if i was to host a game of Quake II or any other game, others cannot join my game

i went into the router configurations and disabled the firewall in the settings, but that did not seem to help

any information would be helpful

thank you