US 7,533,165 B2
Communication apparatus
Jun Makino, Tokyo (Japan)
Assigned to Canon Kabushiki Kaisha, Tokyo (Japan)
Filed on Dec. 12, 2003, as Appl. No. 10/733,353.
Claims priority of application No. 2002-362278 (JP), filed on Dec. 13, 2002.
Prior Publication US 2004/0199625 A1, Oct. 07, 2004
Int. Cl. G06F 15/173 (2006.01)
U.S. Cl. 709—223  [709/224; 709/217; 709/219] 12 Claims
OG exemplary drawing
 
1. A communication apparatus that provides a service to an external device via a network, comprising:
a plurality of network connection units that are connected to the network; and
a control unit that (a) notifies the external device of a plurality of IP addresses assigned respectively to the plurality of network connection units so that the external device can select one of the plurality of IP addresses, and (b) releases the plurality of IP addresses except an IP address selected by the external device so that the communication apparatus can provide a service to the external device via the network using the IP address selected by the external device.