Basic HTML version of Foils prepared 5 February 98

Foil 112 TCP / IP (9)

From Introduction to Networking Technologies CPS640 MultiMedia and Networking -- Spring Semester 1998. by Roman Markowski
1 Security: TCP/IP by itself offers no security
  • PGP - Pretty Good Privacy
  • S/MIME - Secure MIME
  • IPSEC - Internet Protocol Security
2 Tunneling Technology
  • Layer2 forwarding : PPP packet is tunneled across the network
    • PPTP - Microsoft (In Win NT)
    • L2F - Cisco (Layer 2 forwarding)
    • ATMP - Ascend (Ascend Tunnel Management Protocol)
    • L2TP - Microsoft / Cisco (Layer 2 Tunneling Protocol)
  • Layer3 forwarding
    • PPP session is terminated at the remote access server and only the layer3 payload is tunneled
    • Mobile IP - IETF (for cellular networks)
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