How to setup SonicWall Tele3 SP to use Windows XP VPN?

We need use XP VPN to connect to Windows 2003 server, the server is after a SonicWall Tele3 SP, when connect with XP VPN, got following error:

800

The connection to the VPN server could not be established using either PPTP or L2TP. One or more of the following circumstances might have caused this error:
…

Anyone knows how to setup the Sonicwall to make XP VPN work?

Thanks!