[Kea-users] Question on kea-ddns

Jason Guy jguy at cumulusnetworks.com
Thu Jun 20 13:06:03 UTC 2019


As I understand it, this is normal for the DDNS function. I have some
subnets where I statically map the MAC-to-IP in host entries. For those I
would like to:
- disable the DHCID creation
- force overwrite if the DISCOVER matches the hosts entry.

However I am told the current solution is to add the DNS entries
corresponding to the hosts entries, and forget the DDNS on the dynamically
allocated part of a subnet, or the whole subnet. It would be cool to have a
feature to fine tune this, but I'd expect this would be more of a 'hook'
function. =/

Short answer, no, I don't have a good solution to the DDNS issue.

Jason

On Wed, Jun 19, 2019 at 2:27 PM mathiasAichinger <
mathias.aichinger at easysol.at> wrote:

> Hi Jason,
>
> we are seeing the same issue. Have you found a solution? Our workaround at
> the moment is to set the hostname in the lease to a different value which
> gets overwritten by the hosts entry (causes an update)
>
> Mathias
>
>
> Jason Guy wrote
> > Hi Thomas,
> >
> > I am currently using 1.3 as well. The DDNS works great, though I found
> > there are some cases where the DDNS to powerdns fails to update the entry
> > if a previous one still exists. There does not seem to be any way to
> force
> > the update by overwriting the existing one, even though Kea knows it just
> > reused the lease. It is a corner case in a lab environment.
>
>
>
>
>
> --
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