2302 by default, I'm not sure if/what it uses for a query port.

There's some helpful documentation on setting up a server on your cd.

Blue Harvest 24/7 Dedicated Server... minus the few minutes when the memory leak takes us down.

here is some helpful info i found in the MS knowlegebase:
Required Network Ports for a Multiplayer Freelancer Game
The information in this article applies to:
Microsoft Freelancer

SUMMARY
This article describes the ports that you must have to play and host a Freelancer 1.0 multiplayer game through a firewall, a proxy server, a router, Network Address Translation (NAT), or Internet Connection Sharing.
MORE INFORMATION
To make sure that these ports are open or to open these ports, contact your network administrator or Internet service provider (ISP). If you are the administrator of the network, view the documentation that is provided with your networking software to determine how to open these ports. Freelancer Server requires that the following ports be open to host multiplayer games:
2302-2304 UDP

Freelancer requires that the following ports be open to play a multiplayer game:
2300-2400 UDP

For additional information about DirectPlay, click the following article number to view the article in the Microsoft Knowledge Base:
240429 DirectX: Ports Required to Play on a Network


Note For additional information about how to configure Freelancer for your network, view the Readmeserver.htm file that is located in the Extras folder on the Freelancer CD.
Last Reviewed: 2/27/2003
Keywords: kbEntireNet kbinfo KB814550

you may want to check out the directplay ports info if you still have problems.