I passed my SCJP with a score of 93%. Now I am just trying to build a small chat client and server application to learn the concepts of RMI for the SCJD. But how do I test RMI on a local machine when I am using dial-up for connection? I am not sure what I am suppose to specify as URL for usage in the java.rmi.Naming.lookup within the client to get a reference to the server. Any suggestions will be greatly appreciated.