not used when adding an IPv4 lease.
- ``state`` - specifies the state of an added lease, which can be 0 for ``default``,
- 1 for ``declined``, and 2 for the ``expired-reclaimed`` state. Any other
- value causes an error. Using 1 for a ``"IA_PD"`` lease type is
+ 1 for ``declined``, 2 for ``expired-reclaimed``, and 3 for the ``released`` state.
+ Any other value causes an error. Using 1 for a ``"IA_PD"`` lease type is
illegal and will be rejected.
- ``user-context`` - specifies the user context to be associated with