just one question:

i use:

props.put("ORBagentPort", "11111");
props.put("ORBagentAddr", "dev1");
props.put("ORBInitialPort", "31000");
props.put("ORBInitialHost", "1111111");


which ports do i have to let through the firewall?
and how does corba work?
does it send one UDP-request, and the server connects to the client through it?

any ideas? thank you!!!!