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RE: PPTP versus L2TP and possible attacks Feb 13 2004 05:30PM
Zachary Mutrux (zmutrux compumentor org)
As a point of amplification, both L2TP and PPTP are tunneling protocols
without any inherent encryption built in.

In Microsoft's Windows 2K/2K3 implementation, L2TP uses IPSec for
encryption, and PPTP uses MPPE. IIRC, Microsoft's L2TP requires the use of
certificates for authentication and encrypti...

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