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 216 possible ip address and the bottom part shows the 28 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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