<div dir="ltr"><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Sep 13, 2016 at 8:26 AM,  <span dir="ltr">&lt;<a href="mailto:aleksey.maksimov@it-kb.ru" target="_blank">aleksey.maksimov@it-kb.ru</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">2604:1580:fe02:2::10</blockquote></div><br>Probably yum/DNF not explicitly asking for IPv4 (and perhaps happy eyeballs[1] is used on the stack?)</div><div class="gmail_extra">Y.</div><div class="gmail_extra"><br></div><div class="gmail_extra">[1] <a href="https://en.wikipedia.org/wiki/Happy_Eyeballs">https://en.wikipedia.org/wiki/Happy_Eyeballs</a></div></div>