Tuesday, December 1, 2009

IP Header

Possible Protocols Found in the Protocol Field of an IP Header
      Protocol                   Protocol Number
  • ICMP 1
  • IP in IP (tunneling) 4
  • IGRP 9
  • EIGRP 88
  • OSPF 89
  • IPv6 41
  • GRE 47
  • Layer 2 tunnel (L2TP) 115

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