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@outages.org> *On Behalf Of *Phil Lavin via Outages *Sent:* 24 April 2018 13:04 *To:* outages@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@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@outages.org> *On Behalf Of *Phil Lavin via Outages *Sent:* 24 April 2018 12:56 *To:* outages@outages.org *Subject:* Re: [outages] Google 8.8.8.8 Resolution of Route53 domains>
Yeh. Still digging into it.
*From:* Outages <outages-bounces@outages.org> *On Behalf Of *Zach Hanna via Outages *Sent:* 24 April 2018 12:54 *To:* outages@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@outages.org https://puck.nether.net/mailman/listinfo/outages