Verifying information stored on a managed network device

• US 9,634,883 B2
• Filed: 02/28/2014
• Issued: 04/25/2017
• Est. Priority Date: 09/29/2003
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Puttu, Sathyanarayana Nagendra, Koundinya, Swathi M.
• Primary Examiner(s): Anya, Charles E
• Application Number:
  US14/194,429
• Publication Number:
  US 20140181289A1
• Time in Patent Office: 1,152 Days
• CPC Class Codes: H04L 41/00 Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
• CPC Class Codes: H04L 41/0213 Standardised network management protocols, e.g. simple network management protocol [SNMP]
• CPC Class Codes: H04L 41/046 comprising network management agents or mobile agents therefor

Abstract

A method and mechanism for verifying information on a managed device is provided. A request identifying the managed object and also containing a plurality of non-null values comprising proposals for a correct value of the managed object is received from a requester that does not have a correct value for a managed object of a managed device. The requester is unable to read and write the managed object directly, and unable to obtain object specification information. It is determined whether any of the values match the correct value stored in the managed object. Execution of the request is completed by transmitting a notification message indicating whether any of the values match the correct value of the managed object, where the notification message does not provide any indication of which proposed value is the correct value.

Claims

1. A method of verifying information on a managed device, comprising:

using computer instructions implemented on the managed device receiving, from a requester that does not have a correct value for a managed object of the managed device and the requester is unable to read and write the manages object directly, and unable to obtain object specification information, a request comprising a single identifier (ID) of the managed object and a plurality of non-null values comprising proposals of a correct value for the managed object represented by the single ID, wherein the request requests a determination as to whether at least one of the values in the request match the correct value stored in the managed object represented by the single ID;

using the computer instructions implemented on the managed device, determining whether at least one of the values matches the correct value stored in the managed object by checking all values of the request against the value stored in the managed object; and

using the computer instructions implemented on the managed device, completing execution of the request by;

transmitting a notification message to the requester indicating whether any of the plurality of values match the correct value of the managed object, wherein the notification message does not provide any indication of which proposed value is the correct value.

2. The method of claim 1 wherein the managed object stores a username or a password for one member of the following group consisting of:

a telnet protocol, a SSH protocol, a TFTP protocol, a RCP protocol, a SNMP protocol, a TACACS protocol, and a RADIUS protocol.

3. The method of claim 1 wherein the notification message indicates that none of the values match the correct value of the managed object and includes an error message that describes an encountered problem.

4. The method of claim 1 wherein the request is an SNMP GETNEXT request.

5. The method of claim 1 wherein the request is an SNMP GETBULK request.

6. A method of verifying information on a managed device, comprising:

using computer instructions implemented on the managed device receiving, from a requester, a request comprising a single identifier (ID) of the managed object and a plurality of non-null values comprising proposals of a correct value for the managed object represented by the single ID, wherein the request requests a determination as to whether at least one of the values in the request match the correct value stored in the managed object represented by the single ID;

using the computer instructions implemented on the managed device, determining whether at least one of the values matches the correct value stored in the managed object by checking all values of the request against the value stored in the managed object and storing in a specified managed object a notification value indicating whether any of the values match the correct value stored in the managed object;

using the computer instructions implemented on the managed device, subsequent to receiving the first request, receiving a second request from said requester to read the notification value from the specified managed object; and

using the computer instructions implemented on the managed device, responding to said second request by transmitting the notification value.

7. The method of claim 6 wherein the managed object stores a username or a password for one member of the following group consisting of:

a telnet protocol, a SSH protocol, a TFTP protocol, a RCP protocol, a SNMP protocol, a TACACS protocol, and a RADIUS protocol.

8. The method of claim 6 wherein the notification value indicates that none of the values match the correct value of the managed object and includes an error message that describes an encountered problem.

9. An apparatus of verifying information on a managed device, the apparatus comprising:

one or more processors;

a computer-readable non-transitory storage medium storing one or more sequences of instructions which when executed by the one or more processors causes;

receiving, from a requester that does not have a correct value for the managed object of the managed device and the requester is unable to read and write the managed object directly, and unable to obtain object specification information, a request comprising a single identifier (ID) of the managed object and a plurality of non-null values comprising proposals of a correct value for the managed object represented by the single ID, wherein the request requests a determination as to whether at least one of the values in the request match the correct value stored in the managed object represented by the single ID;

determining whether at least one of the values matches the correct value stored in the managed object by checking all values of the request against the value stored in the managed object; and

completing execution of the request by;

transmitting a notification message indicating whether any of the plurality of values match the correct value of the managed object, wherein the notification message does not provide any indication of which proposed value is the correct value.

10. The apparatus of claim 9 wherein the managed object stores a username or a password for one member of the following group consisting of:

a telnet protocol, a SSH protocol, a TFTP protocol, a RCP protocol, a SNMP protocol, a TACACS protocol, and a RADIUS protocol.

11. The apparatus of claim 9 wherein the notification message indicates that none of the values match the correct value of the managed object and includes an error message that describes an encountered problem.

12. The apparatus of claim 9 wherein the request is an SNMP GETNEXT request.

13. The apparatus of claim 9 wherein the request is an SNMP GETBULK request.

14. An apparatus of verifying information on a managed device, the apparatus comprising:

one or more processors;

a computer-readable non-transitory storage medium storing one or more sequences of instructions which when executed by the one or more processors causes;

receiving, from a requester, a first request comprising a single identifier (ID) of a managed object and a plurality of non-null values comprising proposals of a correct value for the managed object represented by the single ID, wherein the first request requests a determination as to whether at least one of the values in the request match the correct value stored in the managed object represented by the single ID;

determining whether at least one of the values matches the correct value stored in the managed object by checking all values of the first request against the value stored in the managed object and storing in a specified managed object a notification value indicating whether any of the values match the correct value stored in the managed object;

subsequent to receiving the first request, receiving a second request from said requester to read the notification value from the specified managed object; and

responding to said second request by transmitting the notification value.

15. The apparatus of claim 14 wherein the managed object stores a username or a password for one member of the following group consisting of:

a telnet protocol, a SSH protocol, a TFTP protocol, a RCP protocol, a SNMP protocol, a TACACS protocol, and a RADIUS protocol.

16. The apparatus of claim 14 wherein the notification value indicates that none of the values match the correct value of the managed object and includes an error message that describes an encountered problem.

17. A computer-readable non-transitory storage medium storing one or more sequence of instructions of verifying information on a managed device, which when executed cause one or more processors to perform:

receiving, from a requester that does not have a correct value for a managed object of a managed device and the requester is unable to read and write the managed object directly, and unable to obtain object specification information, a request comprising a single identifier (ID) of the managed object and a plurality of non-null values comprising proposals of a correct value for of the managed object represented by the single ID, wherein the request requests a determination as to whether at least one of the values in the request match the correct value stored in the managed object represented by the single ID;

determining whether at least one of the values matches the correct value stored in the managed object by checking all values of the request against the value stored in the managed object; and

completing execution of the request by;

transmitting a notification message indicating whether any of the values in the request match the correct value of the managed object, wherein the notification message does not provide any indication of which proposed value is the correct value.

18. The computer-readable non-transitory storage medium of claim 17 wherein the managed object stores a username or a password for one member of the following group consisting of:

a telnet protocol, a SSH protocol, a TFTP protocol, a RCP protocol, a SNMP protocol, a TACACS protocol, and a RADIUS protocol.

19. The computer-readable non-transitory storage medium of claim 17 wherein the notification message indicates that none of the values match the correct value of the managed object and includes an error message that describes an encountered problem.

20. The computer-readable non-transitory storage medium of claim 17 wherein the request is an SNMP GETNEXT request.

21. The computer-readable non-transitory storage medium of claim 17 wherein the request is an SNMP GETBULK request.

22. A computer-readable non-transitory storage medium storing one or more sequence of instructions of verifying information on a managed device, which when executed cause one or more processors to perform:

receiving, from a requester, a first request comprising a single identifier (ID) of a managed object and a plurality of non-null values comprising proposals of a correct value for of the managed object represented by the single ID, wherein the first request requests a determination as to whether at least one of the values in the request match the correct value stored in the managed object represented by the single ID;

determining whether at least one of the values matches the correct value stored in the managed object by checking all values of the first request against the value stored in the managed object and storing in a specified managed object a notification value indicating whether any of the values match the correct value stored in the managed object;

subsequent to receiving the first request, receiving a second request from said requester to read the notification value from the specified managed object; and

responding to said second request by transmitting the notification value.