Digi Connect WAN Series User Manual page 144

Digi Connect WAN Family web interface
Note Removing a lease will cause the associated IP address to be returned immediately to the
available address pool. Any IP address in this available address pool may be served in a new lease to a
DHCP client. Static lease reservations will always display in the lease list. These reservation leases
may be removed, but a new lease will be created immediately. To disable or permanently remove a
reservation, use the DHCP Server Settings page in the Network Configuration area.
Lease status types
Here are the Lease Status values that are displayed in the lease list, 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
n
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Assigned (expired): A lease has expired and is no longer active for the given client.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
n
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
n
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
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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
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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
n
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.
Released: A lease was previously assigned to the given client, but that client has proactively
n
released it. A lease in this state will remain for a 1-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.
Digi Connect WAN Family User Guide
Management
144