Probably, you were using Teredo or some other method to use IPv6.  BTW
if you have a Cisco gateway I have a blog post on how to set up a
dynamic tunnel with HE.  While native IPv6 would be best, the tunnel
should work for you as I also have Bellsouth/AT&T DSL.
http://www.brianraaen.com/2011/10/21/dynamic-he-tunnel-and-dyndns/
Brian Raaen
Zcorum
Network Architect

On Mon, Jun 4, 2012 at 8:35 PM, Grant Ridder <shortdudey...@gmail.com> wrote:
> Hi Everyone,
>
> Does anyone know about IPv6 on ATT residential DSL circuits?  About 8 or 9
> months ago i ran through several IPv6 tests (http://test-ipv6.iad.vr.org/)
> and they all passed.  With all the talk of IPv6 day over the past week i
> decided to run it again just out of curiosity.  However to my surprise, it
> is returning the result of IPv4 only now.  Any ideas why they would have
> rolled back IPv6?
>
> Thanks,
> Grant

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