Method and apparatus for utilizing location codes to identify a physical location of a computer station on a NetBIOS computer network

• US 5,745,682 A
• Filed: 12/04/1995
• Issued: 04/28/1998
• Est. Priority Date: 12/04/1995
• Status: Expired due to Term

• Current Assignee: RPX Corporation
• Original Assignee: NCR Corporation
• Inventors: Keenan, David L.
• Primary Examiner(s): Lall, Parshotam S.
• Assistant Examiner(s): VU, VIET DUY
• Application Number:
  US08/566,767
• Time in Patent Office: 876 Days
• Field of Search: 395/200.02, 395/200.1, 395/200.12, 395/200.2, 395/200.21, 395/183.01, 395/183.22, 395/200.5, 395/200.51, 395/200.52, 395/200.53 , 395/500.56, 395/200.79, 395/200.8, 395/681, 395/682, 370/254, 370/257
• US Class Current: 709/220
• CPC Class Codes: H04L 41/26 using dedicated tools for LAN [Local Area Network] management
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A computer station location method and apparatus is disclosed which is efficient, simple and reliable. The invention utilizes a location code to indicate a physical location of a computer station of interest on a computer network. When users connect to the computer network, the users will specify location codes indicative of the physical locations of the particular computer stations on which the users are operating. The location codes are stored in name tables of the computer stations if those location codes are unique, i.e., not stored in the name tables of any computer station on the computer network. To determine the physical location of a computer station of interest, an interrogation of the name table of the computer station of interest is performed using the hexadecimal address of the computer station of interest.

Claims

1. A method for determining a physical location of a computer station on a computer network, wherein each computer station on said computer network includes an address identifying said computer station and a name table for storing names, said method comprising the steps of:

selecting a network name for each said computer station, said network name permitting data transfer from one computer station to another computer station, said network name being posted on said name table if said network name is unique;

specifying a location code for said computer station on said computer network, said location code indicative of a physical location of said computer station for which said location code is being specified; and

posting said location code as a name in said name table of said computer station for which said location code is being specified, said step of posting only occurring if said location codes is unique, said location code being unique if said location code is not stored in name tables of any other said computer stations on said computer network.

2. The method recited in claim 1 wherein the step of specifying said location code includes:

storing said location code in a file on said computer station for which said location code is being specified.

3. The method recited in claim 2 wherein the step of posting said location code includes:

referencing said file on said computer station for said location code.

4. The method recited in claim 1 comprising the additional step of:

detecting whether networking software is present in computer memory of said computer station for which said location code is being specified prior to the step of posting said location code, said networking software including software for enabling said computer stations on said computer network to communicate with other said computer stations on same said computer network.

5. The method recited in claim 4 wherein the step of detecting whether said networking software is present includes:

instructing a processor of said computer station for which said location code is being specified to examine said computer memory for presence of said networking software.

6. The method recited in claim 4 wherein the step of detecting whether said networking software is present includes:

executing a NetBIOS INTERRUPT 2A call to examine said computer memory of said computer station on which said location code is being specified for presence of said networking software.

7. The method recited in claim 4 wherein the step of detecting whether said networking software is present includes:

executing a NetBIOS INTERRUPT 2F call to examine said computer memory of said computer station for which said location code is being specified for presence of said networking software.

8. The method recited in claim 1 wherein said address is a hexadecimal address and comprising the additional steps of:

determining said hexadecimal address of a selected computer station on said computer network; and

interrogating said name table of said selected computer station for said location code using said hexadecimal address being determined.

9. The method recited in claim 8 wherein the step of determining said hexadecimal address of said selected computer station includes:

conducting a packet trace analysis of said computer network, said packet trace analysis including capturing data packets transmitted over said computer network and decoding said data packets being captured to determine said hexadecimal address of said selected computer station on said computer network, said data packets include hexadecimal addresses of said computer stations from which said data packets originated.

10. The method recited in claim 8 wherein the step of interrogating said name table of said selected computer station includes:

displaying said names stored in said name table of said selected computer station in order to view said location code stored in said name table.

11. The method recited in claim 8 wherein the step of interrogating said name table of said selected computer station includes:

executing a NetBIOS ADAPTER STATUS command to retrieve said location code stored in said name table of said selected computer station.

12. The method recited in claim 1 comprising the additional step of:

prompting a user for said computer station on said computer network to enter said location code for said computer station.

13. The method recited in claim 1 wherein the step of posting said location code includes:

executing a NetBIOS ADD NAME command for appending said location code being specified as a name in said name table of said computer station for which said location code is being specified.

14. An apparatus for determining a physical location of a computer station of interest on a computer network, wherein each computer station on said computer network includes a network adapter and computer memory, said network adapter having adapter memory for storing an address identifying said computer station and a location code indicating said physical location of said computer station, said apparatus comprising of:

means for establishing a network name for a computer station;

means for specifying a location code for said computer station on said computer network; and

means for storing said location code in said adapter memory of said computer station, said means for storing said location code including

means for determining whether said location code is unique, said location code being unique if said location code is not stored in said name table of any said computer station on said computer network.

15. The apparatus recited in claim 14 further comprising:

means for detecting whether networking software is present in said computer memory of said computer station, said networking software includes software that enables said computer station on said computer network to communicate with other said computer station on same said computer network.

16. The apparatus recited in claim 14 further comprising:

means for determining said address of said computer station of interest on said computer network.

17. The apparatus recited in claim 16 wherein said means for determining said address of said computer station of interest is operable to utilize packet trace analysis to capture data packets transmitted over said computer network and decode said data packets being captured to determine said address of said computer station of interest on said computer network, said data packets include addresses of said computer stations from which said data packets originated.

18. The apparatus recited in claim 16 further comprising:

means for interrogating said name table of said computer station of interest for said location code stored in said adapter memory using said address.

19. The apparatus recited in claim 18 further comprising:

means for displaying said location code stored in said name table of said computer station of interest in order to determine said physical location of said computer station of interest.