ITM 301 Lecture Notes - Lecture 13: Shrink Wrap, Link Layer, Point-To-Point Tunneling Protocol

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 301
• Professor: Farid Shirazi

Document Summary

Vpn tunneling pools: to understand how a vpn tunnel works, imagine a truck containing such valuable and private cargo that it must remain totally untouched while in transit over public roads. The truck is completely wrapped in shrink-wrap, piggybacked on the bed of another truck, and carried over the public road system to its destination. At its destination, the shrink-wrap is removed and the precious cargo is unloaded: similarly, with vpn tunneling protocols, complete frames are encrypted, encapsulated, and transported inside normal ip packets and data link layer frames. In other words, a frame travels across the network as the payload inside another frame: vpn tunnelling pools operate at the data link layer - encapsulate the. It uses tcp segments at the transport layer: pptp supports the encryption, authentication, and access services provided by rras. Users can either directly contact an rras access server that"s part of the.