North American Network Operators Group|
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Re: IPv6 Wow
On Mon, 13 Oct 2008, Nathan Ward wrote:
6to4 is enabled by default in Vista - any Vista machine with a non-RFC1918 address will use 6to4. It is also available in some linksys routers, and is enabled by default in Apple Airport Extreme.
I've been told there is a difference between OEM and non-OEM Vista machines when it comes to Teredo being activated or not.
Perhaps a good way to do it is advertise outside Europe, but have the providers that get your advertisement out there prepend their AS a few times as it leaves. That way, US providers will still prefer US 6to4 relays (ie lower latency) but any who don't get a 184.108.40.206/24 route from the US will us your relay in Europe. Kinda gets you best of both worlds.
Yeah, that's been one option as well, prepending 2-3 times to our peers/transit in the US is probably a good middle way.
Regarding some numbers on 6to4 and Teredo usage, I'd like to point people to this thread on the ipv6ops IETF list:
If someone has some nice code that'll take a list of IPv6 addresses and break it down to geographical distribution of native/teredo/6to4, I'd be more than happy to run it on my data.
-- Mikael Abrahamsson email: swmike@xxxxxxxxx