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Update changelog and document the interim ddns update code.

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Ted Lemon 1999-07-07 16:16:04 +00:00
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106
RELNOTES
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@ -1,7 +1,7 @@
Internet Software Consortium
Dynamic Host Configuration Protocol Distribution
Version 3, Alpha Snapshot
June 8, 1999
Version 3, Beta 1, Patchlevel 0
July 7, 1999
Release Notes
@ -10,37 +10,85 @@ Consortium DHCP Distribution.
PLANS
Version 1 of the ISC DHCP Distribution includes just a DHCP Server.
Version 1 has been in feature freeze since late 1996, and is quite
stable. This is the release that we would expect very conservative
sites to run in production, but it is no longer recommended.
Version 2 of the ISC DHCP Distribution adds a DHCP Client and a
DHCP/BOOTP Relay Agent to the DHCP Server that was offered in version
1.0, as well as being more compliant with the protocol specification.
This version has been in a near feature freeze since January of 1998,
has been in Beta test since then, and is planned for final release in
May of 1999. It has a number of important features, and is the
release that we would expect most sites to run. It is possible to run
the Version 1 server with the Version 2 client at sites that want to
be really conservative.
Version 3 of the ISC DHCP Distribution adds conditional behaviour,
address pools with access control, and client classing. Features in
upcoming releases, starting with 3.1, will include Dynamic DNS
Support, DHCPv4 16-bit option codes, asynchronous DNS query
resolution, DHCP Authentication, and support for a DHCP Interserver
Protocol and live querying and update of the DHCP database. Not all
of this is done yet (see below).
address pools with access control, and client classing. An interim
implementation of dynamic DNS updates for the server only is included,
but is not supported. The README file contains information about how
to enable this - it is not compiled into the DHCP server by default.
This release is running in producion at the ISC and at some other
sites. A beta release of 3.0 will be available in mid-May of 1999.
At this point, the 3.0 release is reasonably stable, but is really
only recommended for sites that are in a position to experiment, or
for sites that need the new features. Bug reports are
Features in upcoming releases, starting with 3.1, will include
Dynamic DNS Support, DHCPv4 16-bit option codes, asynchronous DNS
query resolution, DHCP Authentication, and support for a DHCP
Interserver Protocol and live querying and update of the DHCP
database. Not all of this is done yet (see below).
This release is running in production at the ISC and at quite a few
other sites. At this point, the 3.0 release is reasonably stable, but
is really only recommended for sites that are in a position to
experiment, or for sites that need the new features. Bug reports are
enthusiastically solicited.
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.
We should be grateful to Irina Goble, Brian Murrell, and all the other
people who've worked on the interim DNS update implementation - all I
did was integrate Brian's changes, which were based on Irina's
changes, which I think were based on a previous set of changes the
name of whose author I can no longer recall (if you know, please tell
me so I can update this).
Changes since June 6, 1999
- Integrated Irina Goble's Dynamic DNS update patches, with some
changes, thanks to Brian Murrell of BC Tel. These changes are only
enabled if you explicitly specify it with the configure script, and
we currently have no documentation.
- Heavily updated README file.
- Updated dhclient man page to document all current command-line
arguments.
- Added a -s flag to both the client and server, for debugging only,
so that the client and server can both be run using the socket API
on a single machine that has no network interfaces (e.g., with lo0).
- Added support for three new subexpressions that return data:
leased-address, reverse and binary-to-ascii.
- Fixed a problem where TOKEN_NOT and NOT were both kinds of tokens,
which prevented "not authoritative" from working.
- Updated the pretty-printer for the 'X' type so that it will output
ASCII text if the buffer being output contains all printable
characters. This is useful, e.g., for using the host-name option
in the client.
- Add support for an always-broadcast flag, which, when enabled,
causes the DHCP server to broadcast responses to all clients in the
scope in which it is enabled, even if the client didn't request that
the response be broadcast. This is useful for working around
clients that have buggy support for the protocol.
- Fix (I hope!) a compilation problem with the declaration of the
fallback_discard function on some versions of Linux.
- Fix a bug that caused the offered lease time to be zero (or possibly
some random value from the stack) if the client did not request a
specific lease duration.
- Add support for a one-lease-per-client flag, which if enabled in the
scope in which a client appears, causes any leases the client holds
to be freed as soon as a DHCPREQUEST is received from the client for
some other IP address. This will only work if the client has only
one network interface, so caution is urged in the use of this
feature.
- Fix a mistake in the example in the dhcpd.conf manual page that
talks about the "spawn with" statement.
Changes since May 27, 1999
- Fix some typos in the token ring code that I made while