[Kea-users] DHCPv4 Conflict resolution on MAC change

[Dan Oachs]

That's basically the same situation we are in.

It would be awesome if there was a configuration option in Kea to tell the
server that it should immediately expire a lease if there is a request for
a static reservation that conflicts with an existing lease.  But maybe
there are issues with that that I am not thinking about.

--Dan


On Mon, Jan 30, 2023 at 3:55 AM GIRSTMAIR Tobias via Kea-users <
kea-users at lists.isc.org> wrote:

> On Fri, 2023-01-27 at 19:58 +0000, Simon wrote:
> > I assume it doesn’t scale in terms of having multiple hell desk
> > operators having to do manual steps - in which case, the answer is to
> > build a tool into your management toolset allowing them to “click
> > here to remove the lease” when they are altering the reservation
> > details.
>
> The problem for us is that we manage reservations through a central
> MySQL database (through a fancy UI for our hell desk), but leases are
> stored in memfiles on each DHCP server (8 HA setups for 16 total). So
> our tooling doesn't directly connect to the dhcp servers (and doesn't
> even know which dhcp server a reservation 'belongs' to).
>
> If there is no other way, we'll have to rework our tooling to find out
> where to send this API call to (and punch some holes into the
> firewalls). Not the end of the world, but this seems to be a feature
> more people could benefit from.
>
>         tobi
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