Chapter 9

Internet Protocol Version 6 (IPv6)

People refer to IPv6 as the “next-generation Internet protocol,” and it was originally created as the answer to IPv4’s inevitable, looming address-exhaustion crisis. Though you’ve probably heard a thing or two about IPv6 already, it has been improved even further in the quest to bring you the flexibility, efficiency, capability, and optimized functionality that can truly meet your ever-increasing needs. The capacity of its predecessor, IPv4, pales in comparison—and that’s the reason it will eventually fade into history completely.

The IPv6 header and address structure has been completely overhauled, and many of the features that were basically just afterthoughts and addendums in IPv4 are now included ...

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