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Communication apparatus having a plurality of network interfaces, method for controlling the communication apparatus, and storage medium

A technology of network interface and communication equipment, applied in the fields of communication equipment and control communication equipment

Inactive Publication Date: 2011-04-27
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the communication device returns information of a network interface different from the network interface actually performing communication, this makes an external device as an SNMP manager acquire unexpected information

Method used

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  • Communication apparatus having a plurality of network interfaces, method for controlling the communication apparatus, and storage medium
  • Communication apparatus having a plurality of network interfaces, method for controlling the communication apparatus, and storage medium
  • Communication apparatus having a plurality of network interfaces, method for controlling the communication apparatus, and storage medium

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Embodiment Construction

[0034] Now, the present invention will be described in detail below with reference to the accompanying drawings showing embodiments of the present invention.

[0035] figure 1 is a diagram showing an example of a network environment to which an MFP (multifunction peripheral) as an image forming apparatus is connected as the communication apparatus according to the first embodiment of the present invention.

[0036] refer to figure 1 , the above MFP denoted by reference numeral 101 is provided with two network interfaces. One of the two network interfaces is connected to LAN (Local Area Network)-A 110 and the other is connected to LAN-B 120 . It is assumed that each of the LAN-A 110 and the LAN-B 120 is realized by Ethernet ((Ethernet) registered trademark).

[0037] The SNMP manager 111 is connected to the LAN-A 110 so that the SNMP manager 111 can communicate with the MFP 101 using the SNMP protocol. The SNMP manager 121 is connected to the LAN-B 120 so that the SNMP mana...

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Abstract

A communication apparatus having a plurality of network interfaces and capable of properly returning MIB information requested by an external apparatus, even when a network interface actually in communication with the external apparatus and a network interface designated by the external apparatus are different. If it is determined that a value of interface information contained in a MIB information retrieval request received by a communication unit from an external apparatus is a predetermined value and a first network interface has received the request, information corresponding to the first network interface is created from the MIB information and returned to the external apparatus. If it is determined that the value is the predetermined value and that a second network interface has received the request, information corresponding to the second network interface is created from the MIB information and returned to the external apparatus.

Description

technical field [0001] The present invention relates to a communication device with multiple network interfaces and a method for controlling the communication device, in particular to a method for responding to a request for MIB (Management Information Base, Management Information Base) information acquisition from an external device. Background technique [0002] Traditionally, in order to manage communication devices on a network, SNMP (Simple Network Management Protocol, Simple Network Management Protocol) is often used. SNMP is a protocol working on UDP / IP (User Datagram Protocol / Internet Protocol) for monitoring and controlling a communication device by acquiring information of the communication device or configuring the communication device. [0003] In communication device control using SNMP, a communication device (SNMP agent) to be controlled has a database called MIB (Management Information Base). On the other hand, an external device as a controller (SNMP manager...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24G06F13/00H04L12/28H04L12/70H04N1/00
CPCH04L41/0213H04L41/022
Inventor 庄野广希
Owner CANON KK