US 2011/0211580 A1 · COMMUNICATION APPARATUS, COMMUNICATION APPARATUS CONTROLLING METHOD, AND NETWORK SYSTEM

Abstract

A terminal connected to a network stores association information between a physical address and a logical address of the terminal as first association information in an address association information storing unit. The terminal obtains association information between a physical address and a logical address, which is transmitted to the terminal via the network, as second association information. The terminal determines, based on the first association information stored in the storing unit and the second association information, whether or not the logical address included in the first association information is duplicate. If the logical address is determined to be duplicate, the first association information is notified to a device belonging to the network to which the terminal belongs, and the device is instructed to resolve duplication of the logical address.

Claims8

Dependent claims

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.

2 more elements

A controlling method for a communication apparatus connected to a network and stores association information between a physical address and a logical address of the communication apparatus as first association information, the controlling method comprising:

obtaining association information indicating association between a physical address and a logical address transmitted to the communication apparatus via the network as second association information;
determining 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
notifying a device belonging to the network to which the communication apparatus belongs of the first association information when the determining 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 included in the first association information and the logical address included in the second association information.

1 more element

Dependencies are inferred from the claim text.

Communication apparatus, communication apparatus controlling method, and network system

Life of this patent

Communication apparatus, communication apparatus controlling method, and network system

Life of this patent

Abstract

Claims8