what is IP Address ?

An IP address is a numeric address. it is an identifier for a computer or device on a network. IP address for communication purposes.

There are two types of IP address :-

  1. IPv4
  2. IPv6


  • Developed by DARPA (Defence Advanced Research Projects Agency) in 1981.
  • Managed and distributed by IANA ( Internet Assigned Number Authority ).
  • Represented into dotted decimal number.
  • It supports unicasting, multicasting and broadcasting transmission way.


  • Developed by IETF in 1998.
  • It has 128 bits divided into 8 groups each having 16 bits.
  • Represented into Hexadecimal Number System.
  • These addresses supports unicasting, multicasting and any-casting.

Different between Public and Private IP Address:-

Private IP Address

  • The scope of Private IP is LAN or Local.
  • A private IP is Non unique. Can be used on other private networks.
  • Not recognized over Internet.
  • Private IP addresses are secure.
  • Private IP address are only used internally (home, business etc).
  • DCHP is a service used in routers to assign private IPs.
  • Not Publicly registered.
  • Assigned by a router.
  • it is free
  • it is require Network Address Translation (NAT).

If you want to know more about private IP address, please check on https://en.wikipedia.org/wiki/Private_network


A10.0.0.0 –
B172.16.0.0 –
C192.168.0.0 –

Public IP Address

  • The scope of Public IP is global.
  • A public IP is unique globally.
  • Recognized over Internet.
  • Public IP addresses are not secure
  • used externally
  • Assigned by an ISP.
  • it is a not free
  • it is not require Network Address Translation (NAT).


  • –
  • –
  • –
  • –
  • –
  • –
  • –
  • –
  • –
Internal and external network interfaces example
Public IP Address And Private IP Address

If you want to know more about Public IP address, please check on https://en.wikipedia.org/wiki/IP_address#Public_addresses

Basic Engineer

Hey Readers! We have more than fifteen years of experience in Software Development, IoT, Telecom, Banking, Finance and Embedded domain. Currently we are actively working on Data Science, ML and AI with multiple market leaders worldwide. Happy Reading. Cheers!


Leave a Reply

Avatar placeholder

Your email address will not be published. Required fields are marked *