Patent ID: 8219690

Claim:
A non-transitory computer-readable recording medium encoded with a computer program that includes instructions executable on a computer that serves as an internet-protocol (IP) address assignment control apparatus networked with first and second communication devices and a management server networked with the first and second communication devices, each communication device being connected to a server apparatus that sends an information request packet to the management server and that has first and second interfaces, the program causing the computer to execute a procedure, the procedure comprising; obtaining, via a port of an interface provided in the first communication device, a first Media Access Control (MAC) address for the first interface provided in the server apparatus connected to the interface provided in the first communication device and a second MAC address for the second interface provided in the server apparatus connected to an interface provided in the second communication device; and storing, in a storage, the second MAC address for the second interface provided in the server apparatus based on an identification number for the port of the interface provided in the first communication device and the first MAC address for the first interface provided in the server apparatus, wherein an interface identification number for identifying the interface provided in the first communication device, a first IP address for the first interface provided in the server apparatus, and the first MAC address for the first interface provided in the server apparatus are associated with each other and are stored in the storage in conjunction with a second IP address for the second interface provided in the server apparatus.