<div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif">Frank is correct. Bill, please send over a traceroute to 75.75.75.75 and 75.75.76.76 and I'll forward that information to the DNS infrastructure team.</div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif">Thanks,</div><div class="gmail_default" style="font-family:tahoma,sans-serif">John</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Oct 24, 2014 at 6:04 AM, Frank Bulk via Outages <span dir="ltr"><<a href="mailto:outages@outages.org" target="_blank">outages@outages.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Bill,<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I believe Comcast has anycasted their DNS servers, so if you could provide a traceroute to each IP then if Comcast personnel are lurking they can better guess which one it is.<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Frank<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> Outages [mailto:<a href="mailto:outages-bounces@outages.org" target="_blank">outages-bounces@outages.org</a>] <b>On Behalf Of </b>Bill McGonigle via Outages<br><b>Sent:</b> Friday, October 24, 2014 4:34 AM<br><b>To:</b> <a href="mailto:outages@outages.org" target="_blank">outages@outages.org</a><br><b>Subject:</b> [outages] Intermittent Comcast DNS issues from VT<u></u><u></u></span></p><span class=""><p class="MsoNormal"><u></u> <u></u></p><div><div><div><p class="MsoNormal" style="margin-bottom:12.0pt">Since about midnight (Eastern) Comcast's DNS (75.75.75.7[5,6]) has been giving timeouts and the occasional 'no route to host' from Vermont.   Switched our resolvers to use Google's Public DNS (via the same Comcast line) and all services returned to normal.<u></u><u></u></p></div><p class="MsoNormal" style="margin-bottom:12.0pt">Packet traces aren't interesting (just outbound traffic, no responses) and traceroutes to the cdn usually succeed.  <a href="http://dns.comcast.net" target="_blank">dns.comcast.net</a> reports no problems.  Queries at the command line sometimes succeed, sometimes fail, sometimes take a long time to finish.<u></u><u></u></p></div><p class="MsoNormal" style="margin-bottom:12.0pt">-Bill<u></u><u></u></p></div></span></div></div><br>_______________________________________________<br>
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