July 28, 2010

No More Address! No More Connection!!

This millennium had started with Y2K problem. Now this decade starts with IP Address shortage problem.

What is IP Address?

It is a unique number. It is assigned to a computer or device (printer, smart phone, etc...) to send or receive any data within network.


Currently we are using Internet Protocol Version 4 (IPv4). It was designed to provide 4 billion addresses. In the meantime we already used 95 percentages of the addresses. Moreover the remaining 5% is going to end within one year.


IPv6 is the new version of the Internet Protocol. It stands for Internet Protocol Version 6.

It is also known as Next Generation Internet Protocol.

IPv6 is considered as a successor of IPv4.

Difference between IPv6 and IPv4:

IPv6 address uses 128 bits whereas IPv4 uses only 32 bits.

IPv6 provides more than 4 trillion address whereas IPv4 offers only 4 billion address. There won't be any address problem in IPv6.

IPv6 supports a 1280 byte packet size whereas IPv4 supports a 576 byte packet size only.

India's Reaction:

Indian Government have ordered March 2012 is the deadline to migrate from IPv4 to IPv6.


You may raise question why IPv5 did not become a successor of IPv4.

Internet Stream Protocol (ST) is considered as Internet Protocol Version 5 (IPv5). It is developed for experimental purpose. So IPv5 is not going to become a official protocol. That's why IPv6 is known as a successor of IPv4.