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'''[[IPv6]] (Internet Protocol Version 6)''' is the version of [[Internet protocol]] which supports the 128-bit [[IP Address|IP addresses]]. It has been developed as the next generation protocol to increase the 4 billion IP Addresses available and it will eventually replace the nearly exhausted [[IPv4]], which supports 32-bit address space.<ref>[http://www.iana.org/about/glossary/ www.iana,org]</ref> IPv6 has been developed to provide advantages over the current internet protocol. It is expected to solve several network problems by eliminating the need for Network Address Translation (NAT).

'''[[IPv6]] (Internet Protocol Version 6)''' is the version of [[Internet protocol]] which supports the 128-bit [[IP Address|IP addresses]]. It has been developed as the next generation protocol to increase the 4 billion IP Addresses available and it will eventually replace the nearly exhausted [[IPv4]], which supports 32-bit address space. IPv6 has been developed to provide advantages over the current internet protocol. It is expected to solve several network problems by eliminating the need for Network Address Translation (NAT).

As early as 1990, internet experts predicted that the 4 billion available IP addresses under the IPv4 were not enough to accommodate the rapid growth of internet users worldwide. This expansion signaled a great problem, which meant deciding whether to limit the size and growth rate of the Internet or to disrupt the network by changing to new strategies or technology.

As early as 1990, internet experts predicted that the 4 billion available IP addresses under the IPv4 were not enough to accommodate the rapid growth of internet users worldwide. This expansion signaled a great problem, which meant deciding whether to limit the size and growth rate of the Internet or to disrupt the network by changing to new strategies or technology.