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Sams Teach Yourself Network Troubleshooting in 24 Hours, Second Edition by Jonathan Feldman

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Some NAT Solutions

Some cheery news to start with: Microsoft’s new DirectPlay system is pretty NAT friendly. The bad news: Games that either don’t use DirectPlay or use a version of DirectX before version 8 typically exhibit the problems previously described.

Some application-aware firewalls are available; for example, Linux’s IPMasq function has modules to deal with some quirky applications. (See www.e-infomax.com/ipmasq/ for details.) Don’t forget to check game-specific sites as well for configuration help with commercial firewalls. (www.planetbaldursgate.com/bg/help/multiplayer/proxy is one good example.)

One interesting thing that you can do to blow away all NAT issues is to simply throw up a VPN between you and interested gaming friends. ...

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