FRR is a free fork of Quagga that manages various IPv4 and IPv6 routing protocols. Currently FRR supports BGP4, BGP4+, OSPFv2, OSPFv3, IS-IS, RIPv1, RIPv2, RIPng, PIM-SSM and LDP. See the file REPORTING-BUGS to report bugs. FRR is free software. See the file COPYING for copying conditions. For building instructions from the source, see doc/Building_FRR_on_*.md documents.