Determining Network Connectivity Strategies

Point-to-Point Tunneling Protocol VPNs

PPTP is an excellent solution to the tunneling needs of clients. It is relatively simple to set up when compared to L2TP/IPSec, and it provides good security when used with a user name/strong password method. PPTP is an industry standard protocol that was first supported in Windows NT 4.0. This protocol uses the authentication, compression, and encryption of the PPP. PPTP is still in wide use on networks today. Because L2TP along with IPSec can provide better security, this chapter discusses L2TP and IPSec encryption in more depth.