Click here

L2TP

Short for Layer Two (2) Tunneling Protocol, an extension to the PPP protocol that enables ISPs to operate Virtual Private Networks (VPNs). L2TP merges the best features of two other tunneling protocols: PPTP from Microsoft and L2F from Cisco Systems. Like PPTP, L2TP requires that the ISP's routers support the protocol.



Top Terms

Connect with Webopedia

  • The Difference Between Adware & Spyware

    Not technically fitting into either the virus or spam category we have spyware and adware, which are growing concerns for Internet users.

    Read More »

Did You Know? Archive »

  • Quick Reference Archive »