[Pkg-dns-devel] Bug#720864: Bug#720864: Fails to bind IPv6 socket during DAD
martin f krafft
madduck at debian.org
Tue Mar 1 20:00:37 UTC 2016
also sprach Robert Edmonds <edmonds at debian.org> [2016-03-01 20:14 +0100]:
> I like the first suggestion even more:
>
> Watch rtnetlink and react properly to network configuration changes
> as they happen. This is usually the nicest solution, but not always
> the easiest.
>
> But that is significantly more development work.
Would this enable me to say that unbound should just listen on iface
"eth0"?
> By the way, have you tried "ip-transparent: yes"? According to
No!
> I wonder if IP_FREEBIND would actually be a better fit for the
> functionality described in unbound.conf than IP_TRANSPARENT, since
> unbound.conf doesn't mention any of the proxying properties of
> IP_TRANSPARENT.
I agree.
Meanwhile, I found that adding
dad-attempts 200
(standard ifupdown feature)
to the iface inet6 stanza in /etc/network/interface would make ifup
wait up to 20 seconds for the DAD to complete… and block meanwhile.
This is enough for my interface to come up with a non-tentative
address and so by the time boot resumes, the address is fully
configured.
--
.''`. martin f. krafft <madduck at d.o> @martinkrafft
: :' : proud Debian developer
`. `'` http://people.debian.org/~madduck
`- Debian - when you have better things to do than fixing systems
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