[ISC-Bugs #16881]
- DHCPv4 is now the default (as documented) rather than DHCPv6. The default
was set to DHCPv6 to facilitate ease early development, and forgotten.
[ISC-Bugs #16881]
- Corrected a segmentation violation in DHCPv4 socket processing.
[ISC-Bugs #16881]
initialized. [ISC-Bugs #16865]
- Silenced several other compiler warnings. [ISC-Bugs #16865]
- Include the more standard sys/uio.h rather than rely upon other header
files to include it (fixes a BSDI compile failure). [ISC-Bugs #16865]
determined from payload, because some NIC drivers return more data than
they actually recived; IP and UDP packets now stored in aligned data
structures; outgoing packet TTL increased from 16 to 128. [rt15583]
3.1.0a1's tables resulted in a reduction in default server memory use.
The new selected values provide more of a zero sum (increasing the size
of tables likely to be populated, decreasing the size of tables unlikely).
- Lease structures appear in three spearate hashes: by IP address, by UID,
and by hardware address. One type of table was used for all three, and
improvements to IP address hashing were applied to all three (so UID and
hardware addresses were treated like 4-byte integers). There are now two
types of tables, and the uid/hw hashes use functions more appropriate
to their needs.
- The max-lease-misbalance percentage no longer causes scheduled rebalance
runs to be skipped: it still governs the schedule, but every scheduled
run will attempt balance.
[ISC-Bugs #16396]
added. This permits dhcpd or dhclient to execute a named external
program with command line arguments specified from other configuration
language. Thanks to a patch written by Mattias Ronnblom, gotten to us
via Robin Breathe. [ISC-Bugs #13728]
ethernet mac address) on the SCO platform specifically without any strange
ifconfig hacks. Many thanks go to the Kroger Co. for donating the
hardware and funding the development. [V3-0-1-KROGER-WORK-BRANCH] - funded
development.
transmit via bpf, lpf, etc), the IP TTL the software selects has been
increased from 16 to 128. This is intended to match Microsoft Windows
DHCP Client behaviour, to increase compatibility. [ISC-Bugs #15583 and
#3226]
added. If this option is enabled, dhcpd will perform normal DHCID
conflict resolution (the default). If this option is disabled, it will
instead trust the assigned name implicitly (removing any other bindings
on that name). This option has not been made available in dhclient.
[ISC-Bugs #16165]
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]
priority. This helps a small minority of clients that provide parameter
request lists, but do not list the subnet-mask option because they were
designed to interoperate with a server that behaves in this manner.
[ISC-Bugs #1196]
- The FQDN option is similarly supplied even if it does not appear on the
parameter request list, but not to the exclusion of options that do
appear at the parameter request list. Up until now it had ultimate
priority over the client's parameter request list. [ISC-Bugs #1196]
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]
