Chapter 9. IPv6 Introduction

IPv6 is an extension of IP with several advanced features:

• Larger address space.

• No more need for NAT.

• Simpler header for increased router efficiency.

• No more broadcasts.

• Stateless autoconfiguration.

• Built-in support for Mobile IP.

• Built-in support for IPsec security.

• Rich transition features.

• Easy IP address renumbering.

• Capability to have multiple addresses per interface.

• Routers create link-local addresses for use by IGPs.

• As with IPv4, the addresses can be provided by the ISP or can be provider independent.

The primary adoption of IPv6 is driven by the need for more addresses. Given the growth in Internet use and the emergence of large groups of Internet users worldwide, ...

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