Patent ID: 8537826
Filing Date: 2013-09-17
Classification: H04L

Abstract:
1. A communication apparatus connected to a network, comprising: a storing unit that stores association information between a physical address and a logical address of the communication apparatus as first association information; an obtaining unit that obtains association information indicating association between a physical address and a logical address transmitted to the communication apparatus via the network as second association information; a determining unit that determines whether the logical address included in the first association information and the logical address included in the second association information are duplicate based on the first association information and the second association information; and a notifying unit that notifies a device belonging to the network to which the communication apparatus belongs, of the first association information when the determining unit determines the logical address included in the first association information and the logical address included in the second association information are duplicate, and instructs the device to resolve duplication of the logical address, wherein the notifying unit notifies the device via an other communication apparatus having a physical address included in the second association information of the first association information, and instructs the device notified from the other communication apparatus of the first association information to resolve the duplication of the logical address.