Quagga is free software that manages various IPv4 and IPv6 routing protocols. Currently Quagga supports the following protocols Unicast Routing:BGP4, BGP4+, OSPFv2, OSPFv3, RIPv1, RIPv2, and RIPng as well as very early support for IS-IS. Multicast Routing: PIM-SSM See the file INSTALL.quagga.txt for building and installation instructions. See the file REPORTING-BUGS to report bugs. Quagga is free software. See the file COPYING for copying conditions.
BlueTailCat/quagga
Quagga Tracking repository - Master is at http://git.savannah.gnu.org/cgit/quagga.git
CGPL-2.0