AFAIK both DHCPD and KEA will keep track of who gets which address and hand these out each time the device connects again even if the lease has run out.
I use 30min lease time and even after a couple of months the device gets the same address. This is standard and now and again someone wants a new and random address, mostly ISPs that charge for you getting the same address - semi fixed addressing. The only thing that will prevent this is if the lease has been handed out to another device and that will only happen if there are no other addresses to give out than previously used addresses. This was the other part of your requirement as I read it. -- Best regards Sten Carlsen A pessimist is a person that can find a problem for every solution. > On 9 Aug 2024, at 18.37, Francis Dupont <[email protected]> wrote: > > There is a long history of specs for stable IPv6 addresses using some > kind of hash (the idea is more interesting for IPv6 because its large > address space even for a link ensure a negligible collision rate). > > Regards > > Francis Dupont <[email protected]> > > PS: the random allocator is really random so responds to different > constraints. > -- > 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 > [email protected] > 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 [email protected] https://lists.isc.org/mailman/listinfo/kea-users
