Google Public DNS Problems?

Livingood, Jason Jason_Livingood at
Wed May 1 19:13:22 UTC 2013

On 5/1/13 2:23 PM, "Jared Mauch" <jared at> wrote:

>On May 1, 2013, at 1:39 PM, Tony Finch <dot at> wrote:
>>Blair Trosper <blair.trosper at> wrote:
>>> Goes all the way up to the A root server before failing spectacularly.
>> That is an extremely weird response. Are you sure your queries are not
>> being intercepted by a middlebox? What happens if you use dig +vc ?
>> Do you get a similar round-trip time when pinging to the one
>> reported by dig?
>Some places like Wayport/attwifi intercept all udp/53 traffic and direct
>it to their local server.  You won't notice this with a ping, but you
>will see it in the 0 or 1ms reply :)

FWIW, no DNS intercepts happen on the Comcast networkŠ

Jason (Comcast)

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