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Lease status types
Descriptions of Lease Status values that are displayed in the lease list follow, including
how long a lease table entry will remain in each state. Note that after a lease is deleted, the
associated IP address is returned to the available address pool.
Assigned (active)
A lease is currently assigned and active for the given client. The client may renew the
lease, in which case the lease remains in this state.
Assigned (expired)
A lease has expired and is no longer active for the given client. A lease in this state will
remain for a 4 hour grace period, after which it is deleted. If the same client requests an
IP address before the lease is deleted, it will be given the same IP address previously
served to it.
Reserved (active)
A lease for an address reservation is currently active for the given client. A reservation
lease will remain indefinitely, although the status may alternate between active and
inactive.
Reserved (inactive)
A lease for an address reservation is currently inactive for the given client. A reservation
lease will remain indefinitely, although the status may alternate between active and
inactive.
Reserved (unavail)
A lease for an address reservation was offered to a client, but that client actively
declined to use the IP address. Typically this is because the client determined that
another host on the same subnetwork is already using that IP address. Upon receiving
the client's decline message, the DHCP server will mark the address as unavailable. The
lease will remain in this state for 4 hours, after which it is reverts to the Reserved
(inactive) status.
Offered (pre-lease)
A lease has been offered to the given client, but that client has not yet requested that the
lease be acknowledged. It may be that the client also received an offer from another
DHCP server, in which case this offer will expire in approximately 2 minutes. If the
client requests this lease before that 2 minute interval elapses, this lease will change
status to Assigned. If the 2 minute interval expires, the offer record is deleted and the
associated IP address is returned immediately to the available address pool.