0mq is an extension of the standard socket library and does support a reliable multicast protocol. It adds to sockets, its not just an api to make working with

0mq is an extension of the standard socket library and does support a reliable multicast protocol. It adds to sockets, its not just an api to make working with the existing standards easier. http://manpages.ubuntu.com/manpages/maverick/man7/zmq_pgm.7.html http://manpages.ubuntu.com/manpages/maverick/man7/zmq_pgm.7.... Though, it looks like it might need more permissions than just using standard sockets.