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<div id="imail_extraContent">what
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<div class="J-reply" style="background-color:#f2f2f2;color:black;padding-top:6px;padding-bottom:6px;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;margin-top:45px;margin-bottom:20px;"><div style="font-size:14px;line-height:1.5;word-break:break-all;margin-left:10px;margin-right:10px">On <span class="mail-date">01/24/2019 21:24</span>, <a class="mail-to" style="text-decoration:none;color:#2a97ff;" href="mailto:circuitrecords@163.com">CircuitRecords</a> wrote: </div></div><blockquote id="ntes-iosmail-quote" style="margin:0"><html><head></head><body><div id="contentDescription" style="line-height:1.5;text-align:justify;text-justify:inter-ideograph">
<div id="imail_extraContent">Äã˵ʲô£¿</div>
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<div class="J-reply" style="background-color:#f2f2f2;color:black;padding-top:6px;padding-bottom:6px;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;margin-top:45px;margin-bottom:20px;"><div style="font-size:14px;line-height:1.5;word-break:break-all;margin-left:10px;margin-right:10px">On <span class="mail-date">01/24/2019 21:22</span>, <a class="mail-to" style="text-decoration:none;color:#2a97ff;" href="mailto:ignatios@cs.uni-bonn.de">ignatios</a> wrote: </div></div><blockquote id="ntes-iosmail-quote" style="margin:0">Hi,
<br>
<br>we've got reports that
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<br>- repo.anaconda.com (104.17.N.77, 2606:4700::ip.v4.adr.ess)
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<br>(and later:
<br>- www.zabbix.com (104.24.10[23].152, 2606:4700:30::6818:6[6]98)
<br>- www.thunderbird.net (104.25.17[45].13, 2606:4700:20::6819:a[ef]0d)
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<br>"don't work but work when IPv6 is switched off"
<br>
<br>Careful scrutinizing revealed that this was only the case for one
<br>or two of the used address group.
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<br>Detailed symptom: TCP opens, but the first data segment written
<br>gets a RST back.
<br>
<br>I first reported to anaconda.com, but it seems to be a generic
<br>problem to me now (who else is seeing this?)
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<br>So, if any colleague @ cloudflare (AS13335) reads this:
<br>please make work again.
<br>
<br> -is
<br>--
<br>Ignatios Souvatzis, Chief IPv6 enabler RFC 6540
<br>Gemeinsame Systemgruppe b-it + Informatik Tel. +49 228 73-60701
<br><A data-auto-link="1" href="mailto:gsg@cs.uni-bonn.de">gsg@cs.uni-bonn.de</A>
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