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