Configure a fixed IP for your server (eg. 192.168.1.100) Forward port 2092/udp from the router to that machine. Turn off the firewall in your modem if it has one or forward the same port to the router.
Borders? I have never seen one. But I have heard they exist in the minds of some people. -- Thor Heyerdahl
Durch einen Stich bereits geschafft, erschlafft und ohne Saft und Kraft! -- Donald, examining a Deflator Dextrospirillus