Thanks for checking guys. I checked RIR registration and they have those 2 IPs
registered in
Texas. I have read that AT&T uses anycast for name resolution for
Uverse/DSL customers. I can only check from my account in Florida and
the DNS query responses so far resolve as if I were in the Central
United States because the recursive resolvers are registered in Texas, I
as far as I can tell.
I just need to know if these are the only DNS server IPs they hand out to their
Uverse/DSL customers.
Thanks,
Tim Haak
> From: wbai...@satelliteintelligencegroup.com
> To: j...@thejof.com; tim.h...@hotmail.com
> Subject: Re: AT&T Uverse/DSL Network Engineer DNS question
> Date: Tue, 5 Feb 2013 21:15:46 +
> CC: nanog@nanog.org
>
> Here in Orange County, CA I've got a /28 with Uverse Residential with the
> same DNS servers as mentioned below.
>
> FYI
>
> On 2/5/13 1:10 PM, "Jonathan Lassoff" wrote:
>
> >These appear to be an anycasted service, as I reach different destinations
> >based on my source address.
> >
> >Hopefully each deployment has unique origin IPs for their recursive
> >queries.
> >
> >I would recommend against looking at RIR registration data to determine IP
> >location. There's often little to no correlation, there.
> >
> >--j
> >
> >On Tue, Feb 5, 2013 at 1:01 PM, Tim Haak wrote:
> >
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> Hi,
> >>
> >>
> >>
> >>
> >> Can a AT&T Uverse/DSL Network Engineer answer a question about the DNS
> >> server IPs that are handed out to customers please? I am currently
> >>testing
> >> from
> >> a Florida IP. Can you please let me know if all Uverse and DSL customers
> >> across the United States only use these 2 IPs as their primary and
> >> secondary
> >> DNS servers?
> >>
> >>
> >>
> >> 68.94.156.1
> >>
> >> 68.94.157.1
> >>
> >>
> >>
> >> We
> >> provide services based on IP GEO-location. Since the 2 recursive
> >>resolvers
> >> below are registered in Texas every DNS query for any of our records
> >>return
> >> results that are intended for IPs in that region. In other words, users
> >>on
> >> the
> >> east coast would actually resolve to a central part of the US or west
> >> coast IP.
> >>
> >>
> >>
> >> Thanks
> >> in advance,Tim
> >>
> >>
> >>
> >>
> >
>
>
>
