Introduction to IPv6

IPv6 is a technology developed to overcome the limitations of the current standard, IPv4, which allows end systems to communicate and forms the foundation of the Internet as we know it today.

This section on IPv6-specific design considerations provides an overview of IPv6 features and addressing and explains the various IPv6 address types. The address assignment and name resolution strategies for IPv6 are explored. The transition from IPv4 to IPv6 is discussed, and the section concludes with a brief description of the IPv6 routing protocols.

NOTE RFC 2460, Internet Protocol, Version 6 (IPv6), defines the IPv6 standard. Information on IPv6 features supported in specific Cisco IOS releases can be found in Cisco IOS Software Release Specifics for IPv6 Features, at http://www.cisco.com/univercd/cc/td/doc/ product/software/ios123/123cgcr/ipv6_c/ftipv6s.htm.

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