Ciao, I was unable to use option 79 on relay agent so I’ve just made a test with both the client and server on the same VLAN ( no relay agent ) and “hw-address” seems to work, I will made more test just to be sure.
Regarding the DUID, maybe I wrong ,in the DHCPv6 lease file ( server side ) I’ve seen different DUID if I use NetworkManager - service restart - o dhclient to get the IPv6 … I will evalute pros and cons of whether to use DUID o hw-address for host reservations Thanks everyone for the advice Regards, Cristina PS: if anyone has the recipe to use hw-address also with a relay agent please let me know :-) > On 2 Apr 2024, at 16:06, Francis Dupont <fdup...@isc.org> wrote: > >> Of course in that case you could probably also configure the DHCPv6 >> client to send the hw-address as well :-) > > => in fact you can't: there is no direct way to carry the hardware address > in DHCPv6. BTW the opposite exists: RFC 4361 specifies a way to use > a DUID in DHCPv4. Of course you can find it in DHCPv6 messages, the problem > is usually there are many ways which are not guaranted to return a value > or the same value. > See 'MAC/Hardware Addresses in DHCPv6' section in the ARM... > > Regards > > Francis Dupont <fdup...@isc.org> > -- > 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
