nanog mailing list archives

Re: Google Public DNS Problems?


From: Blair Trosper <blair.trosper () gmail com>
Date: Wed, 1 May 2013 11:25:02 -0700

Traceroute is getting the right place and 8.8.8.8 is working, though  :)


On Wed, May 1, 2013 at 11:23 AM, Jared Mauch <jared () puck nether net> wrote:


On May 1, 2013, at 1:39 PM, Tony Finch <dot () dotat at> wrote:

Blair Trosper <blair.trosper () gmail com> 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 8.8.8.8 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 :)

- Jared


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