IPv6 Background*
The Internet Protocol (IP) is the network protocol on which today’s Internet is based. It enables a variety of disparate networks, computers, and other devices to communicate with each other using a common format. Today, the Internet Protocol has matured and has established itself as the chief vehicle for electronic commerce and many other applications.
The current IP implementation, IPv4, has been in use for more than 20 years and is likely to continue to be in service for many more. However, the continuous growth of the global Internet requires that its architecture evolve to accommodate new trends in user applications and new technologies. In addition, a popular rationale for the transition to IPv6 is the need for additional IP addresses.
There is a strong argument that countries or regions that move to gain early IPv6 adoption will have economic advantages. Consequently, for the United States, the main motivator is ensuring that the US networking environment remains competitive with the international community. Some nations, most notably Japan and the People’s Republic of China, are rapidly deploying IPv6 networks. The United States must make the migration to IPv6 to be able to continue its technological parity internationally.
(*) Extracted from the USA Department of Veterans Affairs IPv6 Impact Analysis. - TSG June 2006.