"freebsd-update -r" and IPv6

[Eugene Grosbein]

06.08.2018 0:13, Victor Sudakov wrote:

> Dear Colleagues,
> 
> I have an IPv6-only host for test purposes. I have noticed that I can
> never successfully complete "freebsd-update -r 11.2-RELEASE upgrade"
> procedure on this host, it always complains about 
> 
> Fetching metadata signature for 10.4-RELEASE from update5.freebsd.org... failed.
> No mirrors remaining, giving up.
> 
> The name of the update server can be different each time, like
> "update4.freebsd.org", "update5.freebsd.org" etc with the same result.
> 
> Is this supposed to work? Are all the servers necessary for
> freebsd-update operation available via IPv6?

Please capture network traffic using tcpdump -nps0 while running freebsd-update
and make it available to download.