3.7. Describe the technological requirements for running IPv6 in conjunction with IPv4 (including protocols, dual stack, tunneling, etc)

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 as full-blown standards in IPv6. It's seriously well equipped, poised, and ready to manage the mind-blowing demands of the Internet to come.

3.7.1. Why Do We Need IPv6?

Well, the short answer is, because we need to communicate, and our current system isn't really cutting it anymore—rather like how the Pony Express can't compete with airmail. Just look at how much time and effort we've invested in coming up with slick new ways to conserve ...

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