rpccp-command
                   Specifies one of the following control program
                   commands:
           exit    Leaves the RPC control program.
           help    Displays a list of commands or the possible options
                   of a specified command.
           quit    Leaves the RPC control program.
           remove mapping
                   Removes specified elements from the local endpoint
                   map or from the endpoint map of a specified remote
                   host.
           show mapping
                   Shows the elements of the local endpoint map.