I need to open ports 20220 to 20300 on 2 PowerBooks (running 10.3.5) and redirect to the 'right server'. This is for a Database application, one of the PowerBooks is acting as a server. I know how to do this with an airport but this is connected over a non-apple network. Help menu says go into Network Prefs etc but there are no options to select port numbers that I can see. Any ideas?