Microsoft KB Archive/829474

= RalliSport Challenge (PC): Network Ports That Are Required for Multiplayer Game =

Article ID: 829474

Article Last Modified on 10/16/2003

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APPLIES TO


 * Microsoft RalliSport Challenge PC

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SUMMARY
This article describes the ports that must be open to play Microsoft RalliSport Challenge (PC) as a multiplayer game through a firewall, a proxy server, a router, Network Address Translation (NAT), or Internet Connection Sharing.



MORE INFORMATION
RalliSport Challenge (PC) requires that the following ports are open to play multiplayer games:
 * Hosting 17500 - 17501 User Datagram Protocol (UDP)
 * Joining 1024 - 5000 Transmission Control Protocol (TCP)

Note RalliSport Challenge's Lobbyserver program uses only the main connection UDP port. The default main connection UDP port is 17500, but can be changed in the Server.cfg file.

Any Gameserver program that is started will use the next available UDP port above the main connection port number. For example, if the main port 17500, the Lobbyserver and Gamerserver programs would use the following ports:
 * lobbyserver.exe port = 17500
 * gameserver.exe #1 port = 17501
 * gameserver.exe #2 port = 17502
 * gameserver.exe #3 port = 17503
 * gameserver.exe #4 port = 17504

Note If you want to open more than one Gameserver program, additional ports must be open to support those programs. Typically you only need a single Gameserver program.

For more information about multi-player games of RalliSport Challenge (PC), read the Multiplay Help Document.rtf file in the RalliSport folder.

For additional information about problems with network games, click the following article numbers to view the articles in the Microsoft Knowledge Base:

331611 RalliSport: Known Multiplayer Issues

819836 Games: How to Troubleshoot Multiplayer Issues

Keywords: kbinfo KB829474

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