<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoNoSpacing, li.MsoNoSpacing, div.MsoNoSpacing
{mso-style-priority:1;
margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.s1
{mso-style-name:s1;}
span.font
{mso-style-name:font;}
span.size
{mso-style-name:size;}
span.colour
{mso-style-name:colour;}
span.EmailStyle25
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-GB" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="mso-fareast-language:EN-US">Those prefixes had been withdrawn now – traffic is flowing correctly again for us. If that was the cause, I suspect things are back to rights for everyone now?<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="mso-fareast-language:EN-US">One wonders why HE doesn’t apply filters on a peer with 20 legit prefixes…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Outages <outages-bounces@outages.org>
<b>On Behalf Of </b>Joseph B via Outages<br>
<b>Sent:</b> 24 April 2018 13:56<br>
<b>To:</b> outages@outages.org<br>
<b>Subject:</b> Re: [outages] Google 8.8.8.8 Resolution of Route53 domains<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">Tue Apr 24 11:05:41 UTC onwards one of Hurricane Electric's peers AS1<span class="s1">0297</span> started advertising the following subnets via HE.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">205.251.192.0<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">205.251.193.0<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">205.251.195.0<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">205.251.197.0<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">205.251.199.0<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">These are all Amazon subnets, usually originated as part of /23s and seemingly host a fair bit of AWS Route53.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">If you (or your DNS resolver) are a HE transit customer you will be impacted the most.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">Cheers,<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">Joseph<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">On Tue, Apr 24, 2018, at 9:50 PM, Phil Lavin via Outages wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm">
<span class="size">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:</span><o:p></o:p></p>
<p style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm">
<span class="font"><span style="font-family:"Courier New"">inet.0: 757581 destinations, 2107440 routes (757301 active, 0 holddown, 522 hidden)</span></span><o:p></o:p></p>
<p style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm">
<span class="font"><span style="font-family:"Courier New"">+ = Active Route, - = Last Active, * = Both</span></span><o:p></o:p></p>
<p style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm">
<span class="font"><span style="font-family:"Courier New"">205.251.192.0/24 *[BGP/170] 01:12:08, localpref 70</span></span><o:p></o:p></p>
<p style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm">
<span class="font"><span style="font-family:"Courier New""> AS path: 6939 10297 I, validation-state: unverified</span></span><o:p></o:p></p>
<p style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm">
<span class="font"><span style="font-family:"Courier New""> > to 216.66.90.21 via ge-1/0/5.0</span></span><o:p></o:p></p>
<p style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm">
<span class="size">AS10297 is eNET inc. Is this expected?</span><o:p></o:p></p>
<p style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm">
<span class="size"> </span><o:p></o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm;border-right-width:initial;border-bottom-width:initial;border-left-width:initial;border-right-color:initial;border-bottom-color:initial;border-left-color:initial;border-image-source:initial;border-image-slice:initial;border-image-width:initial;border-image-outset:initial;border-image-repeat:initial">
<p style="margin:0cm;margin-bottom:.0001pt"><span class="size"><b><span lang="EN-US">From:</span></b></span><span class="size"><span lang="EN-US"> Outages <<a href="mailto:outages-bounces@outages.org">outages-bounces@outages.org</a>>
<b>On Behalf Of </b>Phil Lavin via Outages</span></span><span lang="EN-US"><br>
<span class="size"><b>Sent:</b> 24 April 2018 13:04</span><br>
<span class="size"><b>To:</b> <a href="mailto:outages@outages.org">outages@outages.org</a></span><br>
<span class="size"><b>Subject:</b> Re: [outages] Google 8.8.8.8 Resolution of Route53 domains</span></span><o:p></o:p></p>
</div>
</div>
<p style="margin:0cm;margin-bottom:.0001pt"><span class="size"> </span><o:p></o:p></p>
<p style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm">
<span class="size">Looks more specific to AWS than it does to Google+AWS. Can’t resolve against some of AWS’s NS directly:</span><o:p></o:p></p>
<p style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm">
<span class="size"><span style="font-size:10.0pt;font-family:"Courier New";color:black">phil@phil-debian:~$ dig cloudcall.com IN A @ns-163.awsdns-20.com</span></span><o:p></o:p></p>
<p style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm">
<span class="size"><span style="font-size:10.0pt;font-family:"Courier New";color:black">; <<>> DiG 9.10.3-P4-Debian <<>> cloudcall.com IN A @ns-163.awsdns-20.com</span></span><o:p></o:p></p>
<p style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm">
<span class="size"><span style="font-size:10.0pt;font-family:"Courier New";color:black">;; global options: +cmd</span></span><o:p></o:p></p>
<p style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm">
<span class="size"><span style="font-size:10.0pt;font-family:"Courier New";color:black">;; connection timed out; no servers could be reached</span></span><o:p></o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt"><span class="size"> </span><o:p></o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm;border-right-width:initial;border-bottom-width:initial;border-left-width:initial;border-right-color:initial;border-bottom-color:initial;border-left-color:initial;border-image-source:initial;border-image-slice:initial;border-image-width:initial;border-image-outset:initial;border-image-repeat:initial">
<p style="margin:0cm;margin-bottom:.0001pt"><span class="size"><b><span lang="EN-US">From:</span></b></span><span class="size"><span lang="EN-US"> Outages <<a href="mailto:outages-bounces@outages.org"><span style="color:#0563C1">outages-bounces@outages.org</span></a>>
<b>On Behalf Of </b>Phil Lavin via Outages</span></span><span lang="EN-US"><br>
<span class="size"><b>Sent:</b> 24 April 2018 12:56</span><br>
<span class="size"><b>To:</b> <a href="mailto:outages@outages.org"><span style="color:#0563C1">outages@outages.org</span></a></span><br>
<span class="size"><b>Subject:</b> Re: [outages] Google 8.8.8.8 Resolution of Route53 domains</span></span><o:p></o:p></p>
</div>
</div>
<p style="margin:0cm;margin-bottom:.0001pt"><span class="size"> </span><o:p></o:p></p>
<p style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm">
<span class="size">Yeh. Still digging into it.</span><o:p></o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt"><span class="size"> </span><o:p></o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt"><span class="size"><b><span lang="EN-US">From:</span></b></span><span class="size"><span lang="EN-US"> Outages <<a href="mailto:outages-bounces@outages.org"><span style="color:#0563C1">outages-bounces@outages.org</span></a>>
<b>On Behalf Of </b>Zach Hanna via Outages</span></span><span lang="EN-US"><br>
<span class="size"><b>Sent:</b> 24 April 2018 12:54</span><br>
<span class="size"><b>To:</b> <a href="mailto:outages@outages.org"><span style="color:#0563C1">outages@outages.org</span></a></span><br>
<span class="size"><b>Subject:</b> [outages] Google 8.8.8.8 Resolution of Route53 domains</span></span><o:p></o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt"><span class="size"> </span><o:p></o:p></p>
<div>
<p style="margin:0cm;margin-bottom:.0001pt"><span class="size">Anyone else seeing SERVFAIL for route53-hosted domains trying to resolve with Google DNS?</span><o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal"><u>_______________________________________________</u><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Outages mailing list<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><a href="mailto:Outages@outages.org"><span style="color:#0563C1">Outages@outages.org</span></a><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><a href="https://puck.nether.net/mailman/listinfo/outages"><span style="color:#0563C1">https://puck.nether.net/mailman/listinfo/outages</span></a><o:p></o:p></p>
</div>
</blockquote>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
</div>
</div>
</body>
</html>