Saturday, May 10, 2008

IPv4 and IPv6



What is Internet Protocol?

What is Internet Protocol? Internet Protocol is a set of technical rules that defines how computers communicate over a network. There are currently two versions:IP version 4 (IPv4) and IP version 6 (IPv6).

What is IPv4?

IPv4 was the first version of Internet Protocol to be widely used, and still accounts for most of today’s Internet traffic. There are just over 4 billion IPv4 addresses. While that is a lot of IP ad-dresses, it is not enough to last forever.

What is IPv6?

IPv6 is a replacement for IPv4. It was deployed in 1999 and provides far more IP addresses, which should meet the need well into the future.

What are the major difference?

IPv6 is the number of IP addresses. There are just over 4 billion IPv4 ad-dresses. In contrast, there are over 16 billion-billion IPv6 addresses.The technical functioning of the Internet remains the same in both versions and it is likely that both versions will continue to operate simultaneously on networks well into the future. To date, most net-works that use IPv6 support both IPv4 and IPv6 addresses in their networks.


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