xorp  1.8.5-src
About: XORP is an eXtensible Open Router Platform for IPv4 and IPv6. The supported protocols are currently BGP, OSPF, RIP, RIPng, PIM-SM, and IGMP/MLD.
  Fossies Dox: xorp-1.8.5-src.tar.gz  ("inofficial" and yet experimental doxygen-generated source code documentation)  

xorp Documentation