20090141705 | Device and method for address-mapping - To perform address mapping, a configuration client determines port numbers required for a network service and a network address conversion unit converts external network addresses into internal network addresses and vice versa. A configuration server requests required port numbers from the network address conversion unit which directly provides the network service with an external network address with the required port number. A device located in an internal address domain can thus be allocated a unique external network address. | 06-04-2009 |