ISC DHCP 4.1.0a1 is now available

Sat Feb 9 03:28:09 UTC 2008

The download URL seems to be borken.

On Feb 8, 2008 6:32 PM, Evan Hunt <Evan_Hunt at isc.org> wrote:

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> ***
>
>
> ISC DHCP 4.1.0a1 is now available for download.
>
> This is FIRST ALPHA release of ISC DHCP 4.1.0, a feature release focused
> on expanding support for DHCPv6.  A list of changes in this release has
> been appended to this message.  For a full list of changes since any
> historical version, please consult the RELNOTES file in the software
> distribution, or on our website:
>
>        http://www.isc.org/sw/dhcp/dhcp4_1.php
>
> ISC DHCP 4.1.x will have several new DHCPv6 features that were not in
> DHCP 4.0.x.  These will include:
>
> - Support for the rapid-commit option on the client side
>
> - Prefix Delegation support
>
> - IA_TA address support
>
> - A basic DHCPv6 relay agent, dhcrelay6
>
> There are a number of DHCPv6 limitations and features missing in this
> release, which will be addressed in the future:
>
> - Only Solaris, Linux, FreeBSD, NetBSD, and OpenBSD are supported.
>
> - Only a single address is supported per IA.
>
> - DHCPv6 includes human-readable text in status code messages. These
>  should be configurable, and probably localized via gettext() or the
>  like.
>
> - The "host-identifier" option is limited to a simple token.
>
> - The client and server can only operate DHCPv4 or DHCPv6 at a time,
>  not both.  To use both protocols simultaneously, two instances of the
>  relevant daemon are required, one with the '-6' command line option.
>
> For information on how to install, configure and run this software, as
> well as how to find documentation and report bugs, please consult the
> README file.
>
> ISC DHCP uses standard GNU configure for installation. Please review the
> output of "./configure --help" to see what options are available.
>
> The system has only been tested on Linux, FreeBSD, and Solaris, and may
> not
> work on other platforms. Please report any problems and suggested fixes to
> <dhcp-users at isc.org>.
>
>
>                        Changes since 4.0.0 (new features)
>
> - Added DHCPv6 rapid commit support.
>
> - Added explicit parser support for zero-length DHCP options, such as
>  rapid-commit, via format code 'Z'.
>
> - It's now possible to update the "ends" field of a lease with OMAPI.
>  This is useful if you want not only to release a lease, but also make
>  it available for reuse right away.  Hat tip to Christof Chen.
>
> - Fixed definition of the iaaddr hash functions to use the correct
>  functions when referencing and dereferencing memory.
>
> - Some definitions not in phase with the IANA registry were updated.
>
> - Allocated interface IDs are better controlled ('u' bit set to zero,
>  reserved IDs avoided).
>
> - Unicast options are taken into account only for RENEWs.
>
> - NoAddrsAvail answers to SOLICITs are always ADVERTISEs even when a
> SOLICIT
>  carries a rapid-commit option.
>
> - Return in place of raise an impossible condition when one tries to
> release
>  an empty active lease.
>
> - Timer granularity is now 1/100s in the DHCPv6 client.
>
> - The dhclient-script was updated to create a host route for the default
>  gateway if the supplied subnet mask for an IPv4 address was a /32.  This
>  allows the client to work in 'captive' network environments, where the
>  operator does not want clients to crosstalk directly.
>
> - MINUS tokens should be parseable again.
>
> - Multiple (up to "delayed-ack x;" maximum) DHCPv4 packets are now queued
> and
>  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.
>
>                        Changes since 4.0.0 (bug fixes)
>
> - DHCP now builds on AIX.
>
> - Exit with warning when DHCPv6-specific statements are used in the
>  config file but -6 is not specified.
>
> - Fixed "--version" flag in dhcrelay
>
> - The 'min-secs' configuration parameter's log message has been updated to
>  be more helpful.
>
> - The warning logged when an address range doesn't fit in the subnets
>  they were declared has been updated to be more helpful and identify the
>  typo in configuration that created the spanning addresses.
>
> - A bug in failover pool rebalancing that caused POOLREQ message
> ping-pongs
>  was repaired.
>
> - A flaw in failover pool rebalancing that could cause POOLREQ messages to
>  be sent outside of the min-balance/max-balance scheduled intervals has
>  been repaired.
>
> - A cosmetic bug during potential-conflict recovery that caused the peer's
>  'conflict-done' state message to be logged as 'unknown-state' has been
>  repaired.  It is now logged correctly.
>
> - A bug was fixed where the 'giaddr' may be used to find the client's
> subnet
>  rather than its own 'ciaddr'.
>
> - A log message was introduced to clarify the situation where a failover
>  'address' parameter (the server's local address) did not resolve to an
>  IPv4 address.
>
> - The minimum site code value was set to 224 in 3.1.0 to track RFC3942.
>  This
>  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.
>
> - 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.
>
> - Fixes to allow code to compile and run on Solaris 9.
>
> - Fixes to allow code to compile on Mac OS X Leopard (10.5).
>
> - When server is configured with options that it overrides, a warning is
>  issued when the configuration file is read, rather than at the time the
>  option is overridden. This was important, because the warning was given
>  every time the option was overridden, which could create a lot of
>  unnecessary logging.
>
> - Fixed a compilation problems on platforms that define a value for FDDI,
>  which conflicts with a dhcp configuration syntax token by the same name.
>
> - When a failover server suspects it has encountered a peer running a
>  version 3.0.x failover server, a warning that the failover wire protocol
>  is incompatible is printed.
>
> - The failover server no longer issues a floating point error if it
> encounters
>  a previously undefined option code.
>
> --
> Evan Hunt -- evan_hunt at isc.org
> Internet Systems Consortium, Inc.
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-- 
chinmaya
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