mutlicast sockets

[Wright Robert B Civ 96 CG/SCWDE]

i'm getting a "java.net.SocketException: No such device" when executing this
code:

MulticastSocket socket =  new MulticastSocket(4444);
InetAddress address = InetAddress.getByName("230.0.0.1");
socket.joinGroup(address);

through jdb i discovered that the joinGroup method is throwing the
exception.  i may not have my linux box configured correctly.  any ideas?

thanks,

rob



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