[outages] Google 8.8.8.8 Resolution of Route53 domains

[Joseph B]

Tue Apr 24 11:05:41 UTC onwards one of Hurricane Electric's peers
AS10297 started advertising the following subnets via HE.
205.251.192.0
205.251.193.0
205.251.195.0
205.251.197.0
205.251.199.0

These are all Amazon subnets, usually originated as part of /23s and
seemingly host a fair bit of AWS Route53.
If you (or your DNS resolver) are a HE transit customer you will be
impacted the most.
Cheers,

Joseph


On Tue, Apr 24, 2018, at 9:50 PM, Phil Lavin via Outages wrote:
> This doesn’t feel right, though I’ll admit I’ve never checked
> before. Our only route to ns-163.awsdns-20.com (205.251.192.163) is
> through HE:> inet.0: 757581 destinations, 2107440 routes (757301 active, 0
> holddown, 522 hidden)> + = Active Route, - = Last Active, * = Both


> 205.251.192.0/24   *[BGP/170] 01:12:08, localpref 70


>                       AS path: 6939 10297 I, validation-state:
>                       unverified>                     > to 216.66.90.21 via ge-1/0/5.0


> AS10297 is eNET inc. Is this expected?


>  


> *From:* Outages <outages-bounces at outages.org> *On Behalf Of *Phil
> Lavin via Outages *Sent:* 24 April 2018 13:04 *To:*
> outages at outages.org *Subject:* Re: [outages] Google 8.8.8.8 Resolution
> of Route53 domains>  


> Looks more specific to AWS than it does to Google+AWS. Can’t resolve
> against some of AWS’s NS directly:> phil at phil-debian:~$ dig cloudcall.com IN A @ns-163.awsdns-20.com


> ; <<>> DiG 9.10.3-P4-Debian <<>> cloudcall.com IN A @ns-163.awsdns-
> ; 20.com> ;; global options: +cmd


> ;; connection timed out; no servers could be reached


>  


> *From:* Outages <outages-bounces at outages.org> *On Behalf Of *Phil
> Lavin via Outages *Sent:* 24 April 2018 12:56 *To:*
> outages at outages.org *Subject:* Re: [outages] Google 8.8.8.8 Resolution
> of Route53 domains>  


> Yeh. Still digging into it.


>  


> *From:* Outages <outages-bounces at outages.org> *On Behalf Of *Zach
> Hanna via Outages *Sent:* 24 April 2018 12:54 *To:*
> outages at outages.org *Subject:* [outages] Google 8.8.8.8 Resolution of
> Route53 domains>  


> Anyone else seeing SERVFAIL for route53-hosted domains trying to
> resolve with Google DNS?> _________________________________________________
> Outages mailing list
> Outages at outages.org
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