"IPv6 is not the question -- it's the answer," Leslie Daigle, chief Internet technology officer for the ISOC, said during an IETF panel discussion on IPv6. "The question is do we want to continue to have an Internet that continues to be expanded by innovations from everywhere? In which case, we need to deploy IPv6 to continue to have global addressing."
"It's something of a broccoli technology, in that regard: It's better for you if you eat it but it's not necessarily appealing in its own right."
Daigle noted that the Internet development community has known for at least a decade that IPv4 does not provide enough address space to allow each machine to have its own address. IPv4 has a 32-bit address size, allowing for only 4.3 billion addresses.
On the other hand, the 128-bit address space of IPv6 allows for a staggering 340,282,366,920,938,463,463,374,607,431,768,211,456 possible addresses.
Though there's a need, Daigle commented that deployment of IPv6 is no trivial task: It's nothing less than the transformation of the Internet.
And it may need to happen quickly.
From Sean Michael Kerner's article in Internet News . Please do read on at the above link.
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