Tuesday, April 18, 2017

What is the difference between public and private IP ?

What is public IP address?

  • A public IP address is the address that is assigned to a computing device to allow direct access over the Internet. 
  • A web server, email server and any server device directly accessible from the Internet are candidate for a public IP address. 
  • A public IP address is globally unique, and can only be assigned to a unique device.

What is private IP address?

  • A private IP address is the address space allocated by InterNIC to allow organizations to create their own private network. 
  • There are three IP blocks (1 class A, 1 class B and 1 class C) reserved for a private use.
  •  The computers, tablets and smartphones sitting behind your home, and the personal computers within an organizations are usually assigned private IP addresses.


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