On 2010-09-11 22:22, Jeff Kell wrote: [..]
What is currently "breaking" things is the preference of IPv6 over IPv4. If you're running a default Win2K8 active directory, it's publishing all of it's goodies for login in IPv6 form complete with AAAA address records. If your network isn't end-to-end IPv6 compliant, but some Win7 client across the hall (on another subnet) has found *any* IPv6 connectivity (6to4, Teredo, doesn't matter how good/bad/ugly/slow), it is going to try to communicate with the domain controller over that IPv6 connection. I have seen this in action, and stacks of trouble tickets of slow / intermittent / no connectivity with the domain.
It would be nice that if you make these kind of statements that you would have actually read up on things which are active already for a long long time. Please try google and read up on RFC 3484. Indeed, Teredo is prioritized AFTER native IPv4. Greets, Jeroen