Mirrorlist not reachable over IPv6

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jclaassen
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Mirrorlist not reachable over IPv6

Postby jclaassen » 2012/03/26 12:03:05

My name is Joris Claassen and I work for the RIPE NCC, one of the of world's five Regional Internet Registries (RIRs). The RIPE NCC provides Internet number resource allocations (IPv4, IPv6 and ASNs), registration services and coordination activities that support the operation of the Internet globally.

I am researching how various operating systems work in a native IPv6-only environment and noticed that the mirrorlist (mirrorlist.centos.org) of CentOS is not reachable over IPv6, thus disabling IPv6-only clients from updating without editing their yum configfile.

Does anyone know if there are there any plans to enable IPv6 on this server? And, if so, when this will happen?

For more information about the RIPE NCC, please see:
www.ripe.net

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Mirrorlist not reachable over IPv6

Postby pschaff » 2012/03/26 12:14:02

Welcome to the CentOS fora. Please see the recommended reading for new users linked in my signature.

Moving the post from User Comments to a more appropriate home in Website Bugs, Issues, and Problems. A post to the CentOS ML would be more likely to get the attention of someone who can address your question and do something about it.

jclaassen
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Re: Mirrorlist not reachable over IPv6

Postby jclaassen » 2012/03/26 12:19:27

Thank you for moving the thread. I was in dubious whether to post it in the comments or the website issues. If this forum thread stays quiet I will post in the ML, because the last mail issuing this problem is dated 2009.

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TrevorH
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Re: Mirrorlist not reachable over IPv6

Postby TrevorH » 2012/03/26 13:31:53

There was some discussion about this on the #centos IRC channel recently. The discussion went like

(23:34:08) IRConan: is there a mirrorlist URL suitable for a machine with no IPv4 connectivity?
(23:37:18) z00dax: IRConan: as in only ipv6 ?
(23:37:23) IRConan: z00dax: yes
(23:37:56) z00dax: IRConan: unfortunately not. but there are a few v6 mirrors that you can use as baseurl= entries that work
(23:38:01) IRConan: fair enough
(23:38:12) z00dax: IRConan: i would highly encourage you to post this to the centos-devel list
(23:38:18) z00dax: ( the gap in resource )
(23:38:53) z00dax: its not a hard problem to solve, all the bits are there - but sometimes it just feels like a bit of a 'is it worth doing' effort
(23:39:54) IRConan: I will do so at a more convenient moment if I remember
(23:40:06) IRConan: is there documentation of which mirrors are ipv6 enabled?
(23:42:14) z00dax: IRConan: mirror.us.leaseweb.netin the US and mirrors.coreix.net in the UK are the two that I use
(23:42:38) z00dax: bunch of I2 machines have v6 as well
(23:45:35) z00dax: IRConan: no worries, hopefully we can resolve the real issue ( of mirrorlist on v6 ) soon :)


So looks like the best place to ask would be on the centos-devel mailing list for a more definitive answer.

jclaassen
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Re: Mirrorlist not reachable over IPv6

Postby jclaassen » 2012/03/27 08:36:38

Thank you for the information. That seems like a good place to look then. I already have a IPv6-mirrorlist ready, so that bit of the puzzle is there aswell :)

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Re: Mirrorlist not reachable over IPv6

Postby avij » 2012/06/12 06:38:59

Hi, mirrorlist.centos.org is now available over IPv6, so IPv6-only boxes will be able to use yum with an unmodified yum configuration. Dual-stacked boxes will also retrieve the list of mirrors over IPv6.

The IPv6 mirrorlist will only list IPv6-enabled mirrors. For dual-stacked CentOS installations, this means that they'll be downloading their updates only over IPv6 from now on unless they change their configuration to point to some IPv4-only mirror. Mirrorlist.centos.org uses GeoIP information on both IPv4 and IPv6 to give you a list of nearby servers. See also the relevant announcement.

There are still various things in the CentOS project infrastructure that are IPv4-only, but this was probably the most important service to be enabled for IPv6. Other IPv6 services will follow.