Friday, 25 November 2016

Subnet Mask

  • A subnet mask is a 32-bit number that masks an IP address, and divides the IP address into network and host address.
  • An IP address has two components, the network address and the host address.
  • For example: 192.168.0 . 108
  • Assuming this is part of a class C network, the underlined first three numbers 192.168.0 represent the network address and the second one number (108) represent host address
  • IP - (<Network><Host>)
  • Subnetting further divides the host part of an IP address to a subnet and host address.
  • IP - (<Network><Subnet><host>)
Notes