23-10-2009, 04:12 PM
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a new Internet Protocol is well understood and accepted in the networking industry. Requirements for more address space, simpler address design and handling at the IP layer, better QoS( Quality of service) support, greater security, and an increasing number of media types and Internet-capable devices have all contributed to drive the development of Internet Protocol version 6 (IPv6). IPv4, the current version of the Internet Protocol deployed worldwide, has proven remarkably robust, easy to implement, and interoperable with a wide range of protocols and applications. Though substantially unchanged since it was first specified in the early 1980s, IPv4 has supported the scaling of the Internet to its current global proportions. However, the ongoing explosive growth of the Internet and Internet services has exposed deficiencies in IPv4 at the Internetâ„¢s current scale and complexity. IPv6 was developed specifically to address these deficiencies, enabling further Internet growth and development
