Re: Operational experience with 3 degrees

[Erik Nordmark <Erik.Nordmark@sun.com>]

Thanks for sharing this information.

> If IPv6 enabled on machine, IE will call "getaddrinfo" which in conformance
> with the IETF recommendation will look for AAAA record for the web site, and
> then look for an A record if there is no AAAA available. The problem is
> that, upon receiving a query for a AAAA record, some DNS servers returned a
> "no such domain" error, upon which getaddrinfo gave up. The issue affects
> about 20 of the top 500 web sites. We are glad that we found it during a
> limited size beta rather than during a wide scale deployment. We are working
> with the vendors of the affected DNS products and are confident that the bug
> will soon be fixed.

Is this caused by load balancing boxes?
This is an issue for IPv6 deployment in general and not specific
to Teredo. If it would be useful
to have a document to point the vendors to, perhaps we can arm-twist somebody
to write a short document (could be done in dnsop or by a
willing individual I think?)

  Erik