You are most likely using Communication Server tools and diagnostics to debug network problems. Therefore, you need the IP address of the system that the local system is attempting to communicate. Because the TARGET command allows you to specify the host address as a host name, it might not be clear which IP address this name corresponds to. Whenever RRSF resolves a host name to an IP address, it saves the address so it can be displayed by the TARGET LIST command. Note that for the local node, the IP address is resolved when a remote connection is attempted, not when the listener is established. If you use the default address (0.0.0.0) for the local node and want to know the resolved IP address, and TARGET LIST is not already displaying it, you should attempt to establish a remote connection, and then issue the TARGET LIST for the local node again.