Data processing system and method for dynamically assigning a temporary network address to a client computer system utilizing an access port

• US 6,671,720 B1
• Filed: 03/01/2000
• Issued: 12/30/2003
• Est. Priority Date: 03/01/2000
• Status: Expired due to Fees

• Current Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Original Assignee: International Business Machines Corporation
• Inventors: Cromer, Daryl Carvis, Desai, Dhruv Manmohandas, Cheston, Richard W., Ward, James Peter, Locker, Howard Jeffery
• Primary Examiner(s): Dinh, Dung C.
• Assistant Examiner(s): JOHNSON, MARLON B
• Application Number:
  US09/516,429
• Time in Patent Office: 1,399 Days
• Field of Search: 709/203, 709/220, 709/221, 709/222, 709/226, 709/229, 709/245
• US Class Current: 709/222
• CPC Class Codes: H04L 61/5014 using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
• CPC Class Codes: H04L 61/5053 Lease time; Renewal aspects

Abstract

A data processing system and method are described for providing a dynamically assigned network address to a client computer system. The data processing system includes a server computer system coupled to the network. An access port is provided which is coupled to the network. The computer system is coupled to the network utilizing the access port. The computer system is then powered on. The computer system requires a network address in order to communicate utilizing the network. The computer system initially has no stored network address each time prior to being powered on. A dynamic network address is provided to the computer system utilizing only the access port each time the computer system is powering on.

Claims

1. A method in a data processing system for providing a dynamically assigned network address to a client computer system, said data processing system including a server computer system coupled to a network, said method comprising the steps of:

providing an access port coupled to a network;

coupling a client computer system to said network utilizing said access port;

assigning a unique dynamic network address to said access port;

storing said unique dynamic network address in a non-volatile memory in said access port;

cycling power on to said computer system, said computer system requiring a network address in order to communicate utilizing said network, and said computer system initially having no stored network address each time prior to being powered on;

providing said unique dynamic network address stored in said access port to said client computer system utilizing only said access port each time said client computer system is powered on; and

snooping network traffic utilizing said access port transmitted between said client computer system and said server computer to determine if said client computer system requires said unique dynamic network address to respond to a device on said network.

2. The method according to claim 1, further comprising the step of determining a physical location for said client computer system utilizing said unique dynamic network address.

3. The method according to claim 1, further comprising the step of downloading said unique dynamic network address to a memory in said access port from said server computer system.

4. The method according to claim 1, further comprising the step of retrieving said request from said network utilizing said access port while said access port is snooping said network traffic.

5. The method according to claim 4, further comprising the step of transmitting said network address to said computer system utilizing said access port in response to said access port retrieving said request.

6. A data processing system for providing a dynamically assigned network address to a client computer system, said data processing system including a server computer system coupled to a network, comprising:

an access port coupled to a network;

a client computer system coupled to said access port;

means for assigning a unique dynamic network address to said access port;

means for storing said unique dynamic network address in a non-volatile memory in said access port.

means for cycling power on to said computer system, said computer system requiring a network address in order to communicate utilizing said network, and said computer system initially having no stored network address each time prior to being powered on;

means for providing said unique dynamic network address stored in said non-volatile memory in said access port to said client computer system utilizing only said access port each time said client computer system is powered on; and

means for snooping network traffic utilizing said access port transmitted between said client computer system and said server computer to determine if said client computer system requires said unique dynamic network address to respond to a device on said network.

7. The system according to claim 6, further comprising means for utilizing said unique dynamic network address to determine a physical location for said client computer system.

8. The system according to claim 6, further comprising said server computer system for downloading said unique dynamic network address to said access port.

9. The system according to claim 6, further comprising said access port for retrieving said request from said network while said access port is snooping said network traffic.

10. The system according to claim 9, further comprising said access port for transmitting said network address to said computer system in response to said access port retrieving said request.

11. A system for providing a dynamic network address to a client computer on a network, said system comprising:

an access port connecting a server and a client computer on a network, said access port including a User Database Protocol (UDP) port and a non-volatile storage, said UDP port providing means for communicating between said access port and said server, said non-volatile storage storing a unique dynamic network address for said access port, wherein said client computer is assigned said unique dynamic network address by said access port when said client computer powers up; and

means or snooping network traffic utilizing said access port transmitted between said client computer and said server to determine if said client computer requires said unique dynamic network address to respond to a device on said network.