Network communication method, network communication system, network communication apparatus and program using SNMP with improved security
First Claim
1. A method for network communication between a first device and a second device connected each other via a network under Simple Network Management Protocol, the method comprising:
- producing an access request when the first device accesses management information stored in the second device, the access request being compliant with Simple Network Management Protocol and containing;
a data unit composed of a data list which includes a plurality of a data, the data including an object identifier and a value;
the object identifier field in which an object identifier is included for storing identification information of a target device; and
a value field which includes a capsulated information which is also compliant with Simple Network Management Protocol, the value field including an additional information field and a data list field, the additional information field including at least one of the identification information of the first device, identification information of a user of the first device for the access request;
transmitting the access request to the second device; and
permitting the access request as determined by the second device so that at least one of the number of accesses by devices or the number of accesses by users may not exceed a predetermined number, the determination being made based on at least one of the identification information of the first device and/or the identification information of the user contained in the transmitted request for accessing the management information,wherein at least one of the identification information of the first device and the identification information of a user of the first device is not compliant with Simple Network Management Protocol.
1 Assignment
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Accused Products
Abstract
A method for network communication under SNMP includes: producing an access request when a first device accesses management information stored in a second device, the request containing additional information including identification information of the first device or identification information of a user of the first device in a value field included in a data field that contains an identifier field and the value field; transmitting the access request to the second device; and permitting the transmitted access request so that the number of devices or users accessing the second device may not exceed a predetermined number on the basis of the identification information of the first device or the user contained in the transmitted access request and identification information of a device or a user accessing the management information.
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Citations
10 Claims
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1. A method for network communication between a first device and a second device connected each other via a network under Simple Network Management Protocol, the method comprising:
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producing an access request when the first device accesses management information stored in the second device, the access request being compliant with Simple Network Management Protocol and containing; a data unit composed of a data list which includes a plurality of a data, the data including an object identifier and a value; the object identifier field in which an object identifier is included for storing identification information of a target device; and a value field which includes a capsulated information which is also compliant with Simple Network Management Protocol, the value field including an additional information field and a data list field, the additional information field including at least one of the identification information of the first device, identification information of a user of the first device for the access request; transmitting the access request to the second device; and permitting the access request as determined by the second device so that at least one of the number of accesses by devices or the number of accesses by users may not exceed a predetermined number, the determination being made based on at least one of the identification information of the first device and/or the identification information of the user contained in the transmitted request for accessing the management information, wherein at least one of the identification information of the first device and the identification information of a user of the first device is not compliant with Simple Network Management Protocol. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A network communication system, comprising:
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a first device; and a second device connected to the first device via a network under Simple Network Management Protocol, wherein the first device produces an access request when the first device accesses management information stored in the second device, the access request being compliant with Simple Network Management Protocol and containing; a data unit composed of a data list which includes a plurality of a data, the data including an object identifier and a value; the object identifier field in which an object identifier is included for storing identification information of a target device; a value field which includes a capsulated information which is also compliant with Simple Network Management Protocol, the value field including an additional information field and a data list field, the additional information field including at least one of the identification information of the first device, identification information of a user of the first device for the access request; transmits the access request to the second device; and wherein the second device permits the access request transmitted by the first device by determining that at least one of the number of accesses by devices or the number of accesses by users may not exceed a predetermined number, the determination being based on at least one of the identification information of the first device or the identification information of the user contained in the transmitted request for accessing the management information, and wherein at least one of the identification information of the first device and the identification information of a user of the first device is not compliant with Simple Network Management Protocol.
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10. A network communication apparatus communicating with a device connected each other via a network under Simple Network Management Protocol, wherein the network communication apparatus produces an access request when the communication apparatus accesses management information stored in the device, the access request being compliant with Simple Network Management Protocol and containing:
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a data unit composed of a data list which includes a plurality of a data, the data including an object identifier and a value; the object identifier field in which an object identifier is included for storing identification information of a target device; and a value field which includes a capsulated information which is also compliant with Simple Network Management Protocol, the value field including an additional information field and a data list field, the additional information field including at least one of the identification information of the first device, identification information of a user of the first device for the access request; and transmits the access request to the device, wherein when the communication apparatus receives an access request similar to the access request having been transmitted, the network communication apparatus permits the access request having been transmitted by determining that at least one of the number of accesses by devices or the number of accesses by users may not exceed a predetermined number, the determination being based on at least one of the identification information of the first device or the identification information of the user contained in the transmitted request for accessing the management information, and wherein at least one of the identification information of the first device and the identification information of a user of the first device is not compliant with Simple Network Management Protocol.
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Specification