Every time you use the Internet you use an Internet Protocol (IP)-a set of rules for communication between computers. Internet Protocol Version 6 (or IPv6 as its more commonly known) is an upgrade to the most currently available Internet Protocol (version 4, IPv4).
IPv4 was designed a long time ago in computer terms (about 1980) and since then; there were many requests for enhanced capabilities. Currently IPv4 serves what could be called the computer market, the driving force behind the growth of the Internet.
Each computer has an address (called an IP address) that allows other computers to communicate with it. There is a growing shortage of IPv4 addresses, which are needed by all new machines added to the internet. The main driver for the deployment of IPv6 is its ability to expand the address space of the Internet.
IPv6 will also bring many other improvements to IPv4 including routing and network autoconfiguration. It will play a fundamental role in the deployment of 3G Mobile Networks and its new generation of multimedia services and applications.
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