[Kea-users] Client classification based on MAC vendor prefix + multi-subnet DDNS

[Francis Dupont]

> Tobias - writes:
> I managed to get the reservation going after using "shared-networks"
> like you suggested and specifying the interface in the subnets.

=> as the two subnets are on the same link you are in a typical use of
shared-network.

> Everything is fine except that the FQDN sent back to the client is in
> the domain specified in subnet 1 but it gets the rest of the
> configuration from subnet 2.

=> I am afraid the FQDN is not from subnet 1 but from the dhcp-ddns
qualifying-suffix. Now this does not give the way to get right names.
BTW by FQDN option I believe you means option 81.

> Does this mean that I have to specify the FQDN in the hosts table? I
> tried that but it concatenated the two domains instead of going with the
> specified hostname.

=> same problem: the dhcp-ddns qualifying-suffix is appended to the
host reservation hostname. If you use only host reservations you simply
have to make the qualifying-suffix empty and put fqdns in hostnames.
Of course it won't work for a client which has no host reservations...

Thanks

Francis Dupont <fdupont at isc.org>