Hi From my end (Zurich, CH) of the internet can not reach one of the IPv6 backbone mirrors. [..] [root at mirror ~]# /usr/bin/rsync -6avzH --delete msync.centos.org::CentOS /var/www/html/centos rsync: failed to connect to msync.centos.org (2001:1af8:4060:a006:223:7dff:feaa:426f): Connection timed out (110) rsync error: error in socket IO (code 10) at clientserver.c(122) [Receiver=3.0.9] [..] [..] [root at mirror ~]# mtr -nr 2001:1af8:4060:a006:223:7dff:feaa:426f Start: Thu Jun 2 08:20:11 2016 HOST: mirror Loss% Snt Last Avg Best Wrst StDev 1.|-- 2a02:168:7a0e:5::1 0.0% 10 0.2 0.2 0.1 0.2 0.0 2.|-- 2a02:168:2000:1d::1 0.0% 10 0.5 0.6 0.5 0.9 0.0 3.|-- 2001:1620:2::1cd 0.0% 10 0.5 1.7 0.5 12.0 3.5 4.|-- 2001:1620:2::1ad 0.0% 10 0.8 0.7 0.6 1.0 0.0 5.|-- 2001:1620:2::196 0.0% 10 0.7 1.8 0.7 8.0 2.2 6.|-- 2001:1620:2::159 0.0% 10 0.5 2.0 0.5 7.4 2.4 7.|-- 2001:1620:2::c5 0.0% 10 6.1 7.5 0.5 23.1 7.1 8.|-- 2001:1620:2::2b6 0.0% 10 6.0 6.0 5.8 7.6 0.5 9.|-- 2001:1620:2::dd 0.0% 10 16.4 16.5 16.4 17.0 0.0 10.|-- 2001:1620:1000::15e 0.0% 10 19.6 19.9 17.9 21.3 0.9 11.|-- 2a03:2280:38::23 0.0% 10 17.4 17.6 17.4 17.8 0.0 12.|-- 2001:1af8:4060:0:81:17:32 0.0% 10 102.3 45.6 17.2 214.8 65.1 13.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 [..] PS.: If in the case that endpoint is firewalled, please mind that ICMPv6 is a vital part of the IPv6 protocol and shall not be dropped but rather be answered accordingly (rejected, prohibited, etc..) This is part of the IPv6 RFC. Kind regards Sascha -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: OpenPGP digital signature URL: <http://lists.centos.org/pipermail/centos-mirror/attachments/20160602/03b5911c/attachment-0005.sig>