[Pdns-users] PDNS Recursor - force IPv6
otto at drijf.net
Tue Nov 16 08:57:16 UTC 2021
On Tue, Nov 16, 2021 at 08:53:02AM +0000, Brian Candler wrote:
> On 16/11/2021 08:29, Otto Moerbeek via Pdns-users wrote:
> > > Is there possible to get similar to unbound command to force usage of IPv6 in PDNS Recursor?
> > >
> > > prefer-ip6: <yes or no>
> > > If enabled, prefer IPv6 transport for sending DNS queries to internet nameservers. Default is no.
> > >
> > >
> > > Thanks,
> > No, we do not have an equivalent option.
> > pdsn_recursor will use both protocols and figure out what works best
> > per domain and nameserver. Periodically it wil keep trying
> > alternatives to see if the situation changed.
> What happens if you set
> query-local-address=yo:ur:ip:v6::addr:ess ?
> I note that the default is "query-local-address=0.0.0.0" and this only sends
> outbound queries on IPv4.
> I set "query-local-address=0.0.0.0,::" to allow the recursor to use both.
I think since 4.5 we do the right thing and *only* use v6 if you set query-local-address=::
But that has the consequence that a lot of (v4 only) nameservers become unreachable.
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