Hi Gregor, That *should* work, but you don't have to do it that way. You could specify the reservation globally, set `"reservations-global": true` (https://kea.readthedocs.io/en/stable/arm/dhcp4-srv.html#fine-tuning-dhcpv4-host-reservation) and specify whatever classes are necessary in "client-classes" so that you would only need to have one entry per client. This may reduce performance but see here: https://reports.kea.isc.org/ for Kea performance numbers, perhaps it is not a concern?
Thank you, Darren Ankney On Wed, Nov 19, 2025 at 4:16 AM Gregor Kling <[email protected]> wrote: > > Hello, > > > On 11/18/25 10:13 AM, Gregor Kling wrote: > > > > If i am understanding correctly, i'll have to to put > > > > #+begin_quote > > "hw-address": "a1:bb:cc:dd:ee:ff", > > "client-classes": [ "pool_name_1", "pool_name_etc" ] > > #+end_quote > > > > (without ip-address) in every subnet reservations block where i want > > to have the system with the mac address: "a1:bb:cc:dd:ee:ff" > > get an address from the "matching" dynamic pool? > > > To answer myself: > > https://kea.readthedocs.io/en/kea-3.0.2/arm/dhcp4-srv.html#host-reservations-in-dhcpv4 > > > is clear about that: > > #+begin_quote > Making a reservation for a mobile host that may visit multiple subnets > requires a separate host definition in each subnet that host is expected > to visit. It is not possible to define multiple host definitions with > the same hardware address in a single subnet. Multiple host definitions > with the same hardware address are valid if each is in a different subnet. > #+end_quote > > > gg > > -- > Gregor Kling > > Abteilung ITS, Sachgebiet ITS-N > Technische Hochschule Mittelhessen > University of Applied Sciences > Tel: 0641/309-1292 > E-Mail: [email protected] > > -- > ISC funds the development of this software with paid support subscriptions. > Contact us at https://www.isc.org/contact/ for more information. > > To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. > [email protected] -- ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. [email protected]
