All of networking starting with TCP/IP,
Just to reference for IP,TCP, UDP, ICMP header size..
Comparison of IPV4 and IPV6 header
IPV6 Header (protocol Number :41)
IPV4 Header (protocol Number: 4)
TCP Header (protocol number: 6)
UDP Header (protocol number :17)
ICMP Header (protocol number: 1)
Monday, July 4, 2011
Ever wonder why Checkpoint firewall usually cost much more then comparable firewall??? I guess the following table give up pretty much a good detail of why do you have to pay a premium for that..