Bind listener to an IPv6 from AnyIP subnet

Darren Ankney darren.ankney at gmail.com
Sun Mar 12 17:03:05 UTC 2023


Just a quick question because I ran into this problem before... is it
possible that named was started before the ip was added?

On Sun, Mar 12, 2023 at 12:55 PM Serg via bind-users
<bind-users at lists.isc.org> wrote:
>
> Hello, I am trying to bind named listener to an IPv6 from prefix which
> is assigned to a system via AnyIP kernel feature - basically, it is done
> by the following command: sudo ip -6 route add local 2001:db8::/32 dev lo.
>
> To be able to use IPv6 from AnyIP prefix the following sysctl must be
> applied: net.ipv6.ip_nonlocal_bind = 1
>
> Having above, I am able to use any IP from AnyIP prefix in all software
> but named refuses to create socket, which listens to that kind of an IP
> address.
>
> As an alternative approach I have tried to run with a configuration
> "listen-on-v6 { any; }", but it does behave in a way I need - it binds
> separate socket for each discovered IP address rather wildcard address
> of [::].
>
> Had anyone faced the same or similar issue?
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