BIRD is a dynamic routing daemon for UNIX-like systems. It should support all routing protocols used in the contemporary Internet, such as BGP, OSPF, RIP, and their IPv6 variants. It also features a very flexible configuration mechanism, and a route filtering language.
minor feature: New 'show route noexport' command option. Port option for BGP sessions. Better constant handling in set literals. Better rate filtering of log messages. Several minor bugfixes.