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IPv6 Backwards Compatibility for IPv4 Most Critical Mistake, Developers Admit

In conjunction with the 74th IETF Meeting, on Tuesday Internet Society held a panel discussion on IPv6 adoption during which Internet engineering community pointed out that the biggest mistake in developing IPv6 is its lack of backwards compatibility with the existing Internet Protocol, IPv4.

Reporting today on Network World, Carolyn Duffy Marsan writes: "...leaders of the Internet Engineering Task Force (IETF) admitted that they didn't do a good enough job making sure native IPv6 devices and networks would be able to communicate with their IPv4-only counterparts when they designed the industry standard 13 years ago." ... "IPv6 proponents say the lack of mechanisms for bridging between IPv4 and IPv6 is the single, biggest reason that most ISPs and enterprises haven't deployed IPv6."

Read full story: Network World

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Comments

Emperor had no clothes By wolfkeeper  –  Mar 31, 2009 11:35 am PDT

When I first read the proposals I had to admit that I never understood how that was ever supposed to work. I kind of assumed I was just too stupid to understand their arguments; but it turns out that they were smoking something.

Somewhere or other I read an argument that NAT couldn't work for IPv6 or something. Again, madness!

Quite frankly, if somebody had implement Wifi using IPv6 and NATd to IPv4 they would probably have had a competitive advantage years ago, and we would have been much further forward. They had to NAT anyway in most cases. As it is…

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