24.5.2016, 9.22, Kasparek Tomas kirjoitti: > Please add IPv6 for merlin.fit.vutbr.cz (CZ): > > kasparek at pckasparek: ~$ host merlin.fit.vutbr.cz > merlin.fit.vutbr.cz has address 147.229.176.19 > kasparek at pckasparek: ~$ host merlin6.fit.vutbr.cz > merlin6.fit.vutbr.cz has IPv6 address 2001:67c:1220:8b0::93e5:b013 In general, in this day and age it is recommended to just add an AAAA DNS record for the main mirror hostname instead of creating a new IPv6-only hostname. When clients access mirrorlist.centos.org over IPv6, they will receive only mirrors that are available over IPv6. See curl -6 'http://mirrorlist.centos.org/?repo=os&arch=i386&release=6&cc=cz' This means that IPv6-enabled CentOS installations within your network are currently being directed to use some other mirror instead of your local mirror. If you add an IPv6 DNS entry for your mirror, the IPv6 mirror crawler will pick up the change automatically within a few hours and add the mirror to the list of IPv6-enabled mirrors.