- Use lease referencers to maintain reference count on the lease structure.
- Log an error if you encounter a lease with no transmit-state.
o These changes were to a feature that has not yet been publically released,
so there is no RELNOTES entry.
released in bursts after single fsync() events when the upper limit is
reached or if the receiving sockets go dry. The practical upshot is
that fsync-coupled server performance is now multiplicitively increased.
The default delayed ack limit is 28. Thanks entirely to a patch from
Christof Chen.
broke a lot of legacy site local configurations. The new code in place will
track site local space minimum option codes and logs a warning to encourage
updates and exploration of site local code migration problems. Option
codes less than 128 in site local spaces remain inaccessible.
[ISC-Bugs #17203]
- A possible relay agent option bug was repaired where random server
initialization state may have been used to signal the relay agent
information options sub-option code for the 'END' of the option space.
[ISC-Bugs #17203]
control lists. These directives may be used to assist in re-addressing
address pools without having to constantly reconfigure the server. Please
see 'man dhcpd.conf' for more information on allow/deny 'after time' syntax.
Thanks to a patch from Christof Chen. [ISC-Bugs #17110]
are now sorted according to the preference to re-allocate that lease to
returning clients. This should eliminate pool starvation problems
arising when "INIT" clients were given new leases rather than presently
active ones. [ISC-Bugs #16831]
which is used to retain relay agent option contents from when the
client was in INIT or REBIND states. This should solve problems where
relay agent options were not echoed from the server, even when giaddr
was set. [ISC-Bugs #16787]
was directly attached to the same broadcast domain as the DHCP server,
the RFC3046 relay agent information option was not being returned to the
relay in the server's replies. This was fixed; the dhcp server no longer
requires the giaddr to reply with relay agent information. Note that
this also improves compatibility with L2 devices that "intercept" DHCP
packets and expect relay agent information even in unicast (renewal)
replies. [ISC-Bugs #16762]
which causes the server to substantially reduce lease-times if there are
few (configured percentage) remaining leases. Thanks to a patch submitted
from Christof Chen. [ISC-Bugs #15409]
active to free states. Leases that belonged to the failover secondary
are moved to BACKUP state rather than FREE upon exiting EXPIRED state.
If lease rebalancing must move leases, it tries first to move leases
that belong to the peer in need.
- The server no longer sends POOLREQ messages unless the pool is severely
misbalanced in the peer's favor (see 'man dhcpd.conf' for more details).
- Pool rebalance events no longer happen upon successfully allocating a
lease. Instead, they happen on a schedule. See 'man dhcpd.conf' for the
min-balance and max-balance statements for more information.
[ISC-Bugs #13308]
(classes with lease limitations) was fixed. Non-active leases OFFERed
to clients are no longer billed (but billing is checked before offering).
[ISC-Bugs #16168]
misapplied to server values rather than client values. The server no longer
advertises 8-byte lease-time options when on 64-bit platforms.
[ISC-Bugs #16036]
applications (particularly the dhcrelay) can discern between what frames
were tranmsitted to it, and what frames are being carried through it which
it should not intercept. [ISC-Bugs #15573]
