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The BIRD project aims to develop a fully functional dynamic IP routing daemon. https://bird.network.cz
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Jan Maria Matejka 5911740c76 Terminology cleanup: The import_control hook is now called preexport. 
Once upon a time, far far away, there were the old Bird developers
discussing what direction of route flow shall be called import and
export. They decided to say "import to protocol" and "export to table"
when speaking about a protocol. When speaking about a table, they
spoke about "importing to table" and "exporting to protocol".

The latter terminology was adopted in configuration, then also the
bird CLI in commit ea2ae6dd0 started to use it (in year 2009). Now
it's 2018 and the terminology is the latter. Import is from protocol to
table, export is from table to protocol. Anyway, there was still an
import_control hook which executed right before route export.

One thing is funny. There are two commits in April 1999 with just two
minutes between them. The older announces the final settlement
on config terminology, the newer uses the other definition. Let's see
their commit messages as the git-log tool shows them (the newer first):

    commit 9e0e485e50
    Author: Martin Mares <mj@ucw.cz>
    Date:   Mon Apr 5 20:17:59 1999 +0000

	Added some new protocol hooks (look at the comments for better explanation):

		make_tmp_attrs          Convert inline attributes to ea_list
		store_tmp_attrs         Convert ea_list to inline attributes
		import_control          Pre-import decisions

    commit 5056c559c4
    Author: Martin Mares <mj@ucw.cz>
    Date:   Mon Apr 5 20:15:31 1999 +0000

	Changed syntax of attaching filters to protocols to hopefully the final
	version:

		EXPORT <filter-spec>    for outbound routes (i.e., those announced
					by BIRD to the rest of the world).
		IMPORT <filter-spec>    for inbound routes (i.e., those imported
					by BIRD from the rest of the world).

	where <filter-spec> is one of:

		ALL                     pass all routes
		NONE                    drop all routes
		FILTER <name>           use named filter
		FILTER { <filter> }     use explicitly defined filter

	For all protocols, the default is IMPORT ALL, EXPORT NONE. This includes
	the kernel protocol, so that you need to add EXPORT ALL to get the previous
	configuration of kernel syncer (as usually, see doc/bird.conf.example for
	a bird.conf example :)).

Let's say RIP to this almost 19-years-old inconsistency. For now, if you
import a route, it is always from protocol to table. If you export a
route, it is always from table to protocol.

And they lived happily ever after.
2018-09-26 16:35:05 +02:00
client Doc: renamed progdoc files Doc -> progdoc to fix collision with doc/ folder on case-insensitive filesystems 2018-06-26 17:09:12 +02:00
conf Conf: Show the line:char position where the syntax error happens 2018-09-11 17:35:13 +02:00
doc Doc: Fix description of 'description' 2018-08-24 18:58:06 +02:00
filter Nest: Neighbor cache cleanups 2018-06-27 16:57:07 +02:00
lib No more warnings ... 2018-09-18 14:21:11 +02:00
misc NEWS and version update 2018-03-21 16:33:08 +01:00
nest Terminology cleanup: The import_control hook is now called preexport. 2018-09-26 16:35:05 +02:00
proto Terminology cleanup: The import_control hook is now called preexport. 2018-09-26 16:35:05 +02:00
sysdep Terminology cleanup: The import_control hook is now called preexport. 2018-09-26 16:35:05 +02:00
test Protocol: Introducing an enum protocol_class 2018-05-29 12:35:06 +02:00
tools Autotools: updated config.guess and config.sub 2018-06-26 17:14:16 +02:00
.gitignore Add cscope Makefile target 2018-02-13 17:00:24 +01:00
.gitlab-ci.yml Moved freebsd cflags and ldflags to configure 2018-01-09 16:46:00 +01:00
aclocal.m4 Bison: A bit more verbose error messages in config. 2018-08-14 14:36:44 +02:00
bird.conf KRT: Fix IPv6 route learn 2018-02-06 16:08:45 +01:00
configure.ac Bison: A bit more verbose error messages in config. 2018-08-14 14:36:44 +02:00
INSTALL Minor autoconf cleanup and documentation update 2017-05-09 16:46:41 +02:00
Makefile.in Bison: A bit more verbose error messages in config. 2018-08-14 14:36:44 +02:00
NEWS Date added. 2018-03-22 13:30:10 +01:00
progdoc Doc: renamed progdoc files Doc -> progdoc to fix collision with doc/ folder on case-insensitive filesystems 2018-06-26 17:09:12 +02:00
README Removed '--enable-ipv6' reference. 2017-12-12 10:43:56 +01:00

README 

                       BIRD Internet Routing Daemon

                     Home page  http://bird.network.cz/
                  Mailing list  bird-users@network.cz

                (c) 1998--2008  Martin Mares <mj@ucw.cz>
                (c) 1998--2000  Pavel Machek <pavel@ucw.cz>
                (c) 1998--2008  Ondrej Filip <feela@network.cz>
                (c) 2009--2017  CZ.NIC z.s.p.o.

================================================================================

The BIRD project aims to develop a dynamic IP routing daemon with full support
of all modern routing protocols, easy to use configuration interface and
powerful route filtering language, primarily targeted on (but not limited to)
Linux and other UNIX-like systems and distributed under the GNU General
Public License.

What do we support
==================

	o  Both IPv4 and IPv6
	o  Multiple routing tables
	o  Border Gateway Protocol (BGPv4)
	o  Routing Information Protocol (RIPv2, RIPng)
	o  Open Shortest Path First protocol (OSPFv2, OSPFv3)
	o  Babel Routing Protocol (Babel)
	o  Bidirectional Forwarding Detection (BFD)
	o  IPv6 router advertisements
	o  Static routes
	o  Inter-table protocol
	o  Command-line interface allowing on-line control and inspection of
	   status of the daemon
	o  Soft reconfiguration, no need to use complex online commands to
	   change the configuration, just edit the configuration file and notify
	   BIRD to re-read it and it will smoothly switch itself to the new
	   configuration, not disturbing routing protocols unless they are
	   affected by the configuration changes
	o  Powerful language for route filtering, see doc/bird.conf.example
	o  Linux, FreeBSD, NetBSD and OpenBSD ports

How to install BIRD
===================

	o  From standard distribution package of your OS (recommended)
	o  From official binary packages for Debian and Red Hat Linux
	   ftp://bird.network.cz/pub/bird/debian/
	   ftp://bird.network.cz/pub/bird/redhat/
	o  From source code of the latest stable release version
	   ftp://bird.network.cz/pub/bird/
	o  From source code of the actual development version
	   git://git.nic.cz/bird.git
	   https://gitlab.labs.nic.cz/labs/bird/

How to install BIRD from source code
------------------------------------

	$  ./configure
	$  make
	$  su
	#  make install
	#  vi /usr/local/etc/bird.conf

See the file INSTALL for more information about installation from source code.

Documentation
=============

Online documentation is available at http://bird.network.cz/?get_doc or as HTML
files in the doc directory, you can install it by `make install-docs' and
rebuild it by `make docs', but you'll need SGMLtools and LaTeX to be installed
on your machine. You can also download a neatly formatted PostScript version as
a separate archive (bird-doc-*.tar.gz) from ftp://bird.network.cz/pub/bird/

User support
============

If you want to help us debugging, enhancing and porting BIRD or just lurk
around to see what's going to develop, feel free to subscribe to the BIRD
users mailing list bird-users@network.cz, just send `subscribe' to
bird-request@network.cz. Bug reports, suggestions, feature requests and
code are welcome! We don't use gitlab issues for reporting, sorry.

Subscribe:	http://bird.network.cz/mailman/listinfo/bird-users/
Archive:	http://bird.network.cz/pipermail/bird-users/

Licence
=======

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

History
=======

BIRD development started as a student project at the Faculty of Math
and Physics, Charles University, Prague, Czech Republic under supervision
of RNDr. Libor Forst <forst@cuni.cz>. BIRD has been developed and supported
by CZ.NIC z.s.p.o. http://www.nic.cz/ since 2009.


Good Luck and enjoy the BIRD :)
						The BIRD Team