There is a max value, and it is stated here: 9. The DHCPv4 Server — Kea 3.0.0 documentation <https://kea.readthedocs.io/en/kea-3.0.0/arm/dhcp4-srv.html#ipv4-subnet-identifier>Subnet IDs must be greater than zero and less than 4294967295. It shouldn´t matter how large your network ID is(as long as it is within accepted values)
On Wed, Aug 27, 2025 at 1:34 PM Jim <[email protected]> wrote: > I’m working on migrating a DHCP server from RHEL 8 to 10, and consequently > moving from dhcpd to kea. > > I’ve got more than 100 subnets defined in the old server that I’m > recreating. My big question is the ID for each subnet, I see no info in > the docs on if there is a max value for this, and my second concern would > be if using large(ish) values would have any performance impact. > > For example, I’m considering using IDs based on the subnet, such as: > > id: 10001001 // 10.100.1.0/24 > id: 192168001 // 192.168.1.0/24 > id: 192168020 // 192.168.20.0/24 > > Has anyone done something similar? > -- > 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
