Hi WIllhelm, You might try combining the random allocater with "lease affinity" with a long "hold-reclaimed-time". This should offer similar functionality:
random: https://kea.readthedocs.io/en/kea-2.6.1/arm/dhcp4-srv.html#random-allocator lease affinity: https://kea.readthedocs.io/en/kea-2.6.1/arm/lease-expiration.html#configuring-lease-affinity Thank you, Darren Ankney On Fri, Aug 9, 2024 at 4:32 AM Wilhelm Schuster <lists+...@rot13.io> wrote: > > Hi list, > > I'm evaluating switching from OpenWRT to VyOS on my main home network > router setup. VyOS integrates kea as DHCPv4 server whereas OpenWRT > relies on dnsmasq. > > dnsmasq implements an interesting address allocation strategy which I > like quite a bit. Here is how its manpage describes it [1]: > > Dnsmasq is designed to choose IP addresses for DHCP clients using a > hash of the client's MAC address. This normally allows a client's > address to remain stable long-term, even if the client sometimes > allows its DHCP lease to expire. In this default mode IP addresses > are distributed pseudo-randomly over the entire available address > range. > > Here is a link to the source code: [2] > > I'm a fan of that strategy as it keeps host addresses somewhat stable > even after leases have expired. I've scoured the kea manual, but was > unable to find a suitable strategy: the random allocator does not appear > to use the client MAC address (from a brief look at the kea source). If > there is no built-in way to mimic the allocation strategy, is there the > possibility to implement a custom allocator as a plugin or hook, or does > that require forking the codebase? > > [1]: https://man.archlinux.org/man/dnsmasq.8#dhcp-sequential-ip > [2]: > https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=blob;f=src/dhcp.c;h=b65facd8707b03919d6f78afd2ea8dd25078e5e9;hb=HEAD#l790 > > Cheers, Wilhelm. > -- > 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
