Internet Protocol version 6 (IPv6) is an Internet Layer protocol for packet-switched internetworks.
IPv4 is currently the dominant Internet Protocol version, and was the first to receive widespread use. The Internet Engineering Task Force (IETF) has designated IPv6 as the successor to version 4 for general use on the Internet.
IPv6 has a much larger address space than IPv4, which provides flexibility in allocating addresses and routing...
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http://en.wikipedia.org/wiki/IPv6
10/9/2008
