[Kea-users] DHCPv6 DUID-LL matching

[Francis Dupont]

Does your client using a DUID-LL (highly recommended for clients without
a stable storage where they can save the DUID-LLT) or a DUID-LLT ?
In the second case if the by hardware address reservation matches it is
no the case for the DHCPv6 lease because the DUID-LLT changed.
There are two ways to handle this:
 - of course the simplest is to use a DUID-LL on the client
 - if it is not possible (no stable storage and no option to use DUID-LL)
 overwrite the DUID for the lease with flex-id and replace-client-id set
 to true (vs its default false).

Regards

Francis Dupont <fdupont at isc.org>

PS: I expect the hardware address is found in the DUID (it is no carried
in a standard way by DHCPv6) but if it is not the case you can enfore this
by setting the mac-sources parameter.