Hi Jason, This has come up before. The short answer is that ISC DHCP did not record a lease for addresses reserved with "fixed-address". Kea does record a lease, and so won't allow assignment to a new client until the lease is expired. You could send a release from the old computer before shutting it down, that should end the lease and make available to the new. You could also use the "lease4-del" API command (https://kea.readthedocs.io/en/kea-2.4.1/arm/hooks.html#the-lease4-del-lease6-del-commands) to remove the lease which would also make it available to the new client.
Thank you, Darren Ankney On Wed, Mar 6, 2024 at 5:44 PM Jason Keltz <j...@yorku.ca> wrote: > > Hi. > > I have one question with respect to leases with Kea. > > On a subnet, I have assigned a static IP address for each ethernet address. > It works great. Recently, we started replacing the computers in one of our > labs. The new computers will be replacing existing computers, so they will > take on the same names. Before we install a new machine, we turn off the > old machine, reconfigure the ether address for the host in kea, and have kea > re-read it's config file. > > When the new system comes up, Kea doesn't want to give it the ether address > that is reserved for it because it sees a conflict. Of course the IP is > already issued to the old computer (that is now off). > > Is there an option to tell Kea to be "less particular" about leases for > reservations? That is, if the config file says that ether address X gets IP > address Y, then ether address X is always going to get IP address Y whether > the lease database says that it's in use or not. Obviously we aren't going > to have the old and new computer up at the same time. > > Is this possible? > > We did these kind of upgrades all the time with ISC DHCPd, and this was never > an issue, so hopefully it's just an option that I'm missing. > > Jason. > > > > -- > 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. > > Kea-users mailing list > Kea-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/kea-users -- 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. Kea-users mailing list Kea-users@lists.isc.org https://lists.isc.org/mailman/listinfo/kea-users
