On Sat, 2017-02-18 at 20:01 +0100, Per Jessen wrote:
We are aware that we're not at the full level of IPv6 support that
we would like to reach: unlike on IPv4, we cannot yet do AS and Prefix based matching of mirrors.
Does that explain the above? What about the redirects to mirrors with no IPv6?
?No, that's different issues. The AS and Prefix matching would make the network connection an additional criteria to get redirected (e.g. if swisscom would host a mirror, and you're inside the swisscom network, this could be the preferred mirror; not that they do have any mirrors) The redirection to ipv4 hosts is a bit of a problem of mirrorbrain as far as I've seen so far: there seems not to be enough metadata about mirrors (on can be set as ip6only, but there is no setting for dualstack suppoort. So, a mirror can say it accepts ONLY ipv6, any other host is assumed to be either v4 only or dual stack - and clients are assumed to be dualstack. That is, as far as I understood, the current limitation of mirrorbrain (for the current reality, the assumptions are not far off, but as tmie progresses this will need adjustments); the trickiest part will be to find out if the client is dual stack or not (server info would just be administrative tasks) Cheers, Dominique