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Re: IPv6 Wow
On Sun, 12 Oct 2008, Stephen Sprunk wrote:
Mikael Abrahamsson wrote:This brings up an interesting question, should we stop announcing our 6to4 relays outside of Europe? Is there consensus in the business how this should be done? I have heard opinions both ways.
The problem is that every tunneling mechanisms is selecting detination without the real knowldege about the underlying technology/distance etc. It was horrible during the 6bone - documented by Pekka Savola. We are not learning, from the past... 6to4 can generate same amount of problem....
Basically if they would obey the default address selection rules they would use 6to4 addresses only if there would be no global addressess and a resource would be acessible only from IPv6.
This is the intended and recommended behaviour which is implemented by Windows (XP, Vista), *BSD systems and recent Linux systems.
Unfortunately there is a broken idea of Apple to not implment RFC 3484 style Default Address Selection into the protocol stack, however it is implemented in its ancestors (*BSD + KAME) for more than 4 years now.
Janos Mohacsi Network Engineer, Research Associate, Head of Network Planning and Projects NIIF/HUNGARNET, HUNGARY Key 70EF9882: DEC2 C685 1ED4 C95A 145F 4300 6F64 7B00 70EF 9882