Internet Routing Daemon : bird （应该是个vpn程序）

    

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 (use --enable-ipv6 when configuring)
 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
------------------------------------
           autoreconf (运行此命令，以生成configure文件）
 $  ./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.

from https://github.com/BIRD/bird

https://github.com/BIRD/bird/blob/master/INSTALL

http://bird.network.cz/?get_doc