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IPv6 Fundamentals: A Straightforward Approach to Understanding IPv6, 2nd Edition
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IPv6 Fundamentals: A Straightforward Approach to Understanding IPv6, 2nd Edition

by Rick Graziani
June 2017
Beginner
688 pages
18h 36m
English
Cisco Press
Content preview from IPv6 Fundamentals: A Straightforward Approach to Understanding IPv6, 2nd Edition

Chapter 3. Comparing IPv4 and IPv6

“It’s exactly the same, only completely different.”

—Anonymous

Chapter 2, “IPv6 Primer,” introduces some of the differences in how IPv6 operates compared to IPv4. It talks, for example, about ICMPv6 Neighbor Discovery Protocol (NDP), with its four new message types that change the way IP performs address resolution and dynamic addressing.

This chapter focuses on the IPv6 protocol header, and compares it to the IPv4 header. The structure of the IPv6 header is discussed in RFC 2460, Internet Protocol, Version 6 (IPv6) Specification. In addition to the main IPv6 header, there is a new type of IPv6 header known as an extension header, which is also discussed in this chapter.

This chapter examines the following topics: ...

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