Rules for Neverwinter Nights 1

I simply can’t figure out how to configure Comodo firewall so I can host Neverwinter Nights games. I tried creating some rules, but I ended up blocking NWN’s access to the internet. As you can see here http://nwn.bioware.com/support/techfaq.html NWN wants me to open

  • Ports 5120 through 5300
  • Port 6500
  • Port 6667
  • Port 27900
  • Port 28900

So how do I do that? ???