IP explained

IP explained

Review of IPV 4

  • 32 bits
  • this 32 bits are divided in to 8 sections such as 32 / 8 = 4.

Review of IPV6

  • 128 bits

  • undecillion

  • Leading zeros can be dropped (2134::AD1:..)

  • :: can be used to represent collection of zeros (o:O:o)

classless inter demain Routing Notation (CIDR)

  • half of the possibilities cut down when leading bit is increased by 1.


In this figure, upper part shows the \(2^{16}\) possible ip address and the bottom part shows the \(2^{8}\) which is the smallest.

  • For example in the Aws VPC subnets largest is 16 and smallest range is 28.

Private Network Ranges

  • As a standard 8, 12 and 16 Leadiing bits are reserved for the internal used.

  • 10.0.0.0 to 10.255.255.255 for 10.0.0.0/8

  • 172.16.0.0 to 172.31. 255.25 for 172.16.0.0/12

  • 192.168.0.0 to 192.168.255.255 for 192.168.0.0/16

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