This is a simple test for testing the multicast ior parser with format mcast://multicast_address:port:nicaddress:ttl The Client requests for the IOR of a service that is multicasted. The Server helps get this ior with the use of the TAO_IOR_Multicast class in the libTAO_Svc_Utils library. It should test the nic address and ttl parts too of the mcast format. You can run the test as: % ./server -a 224.0.1.27:12345 -ORBEndpoint iiop://doc.ece.uci.edu:23456 The '-a' option is to give the multicast address to which the requests to the server should be directed to. % ./client -ORBInitRef MCASTServer=mcast://224.0.1.27:12345:eth0:2/MCASTServer