My understanding is that PPTP is the simplest, but has the least encryption and sends the password in clear text.<BR><BR>IPSec seems to be the most secure (with nice fat AES encryption possible) but ...
The Layer 2 Tunneling Protocol (L2TP) is a standard protocol for tunneling L2 traffic over an IP network. Its ability to carry almost any L2 data format over IP or other L3 networks makes it ...