Method and apparatus for automatic network configuration

• US 7,577,723 B2
• Filed: 02/28/2006
• Issued: 08/18/2009
• Est. Priority Date: 11/12/1998
• Status: Expired due to Fees

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: Inagaki, Tatsuya, Teramura, Shinsuke, Urabe, Akio, Piersol, Kurt, Matsuda, Toru
• Primary Examiner(s): Tran; Philip B
• Application Number:
  US11/365,330
• Publication Number:
  US 20060155833A1
• Time in Patent Office: 1,267 Days
• Field of Search: 709220-222, 709223-225, 709/203, 709/245
• US Class Current: 709/220
• CPC Class Codes: H04L 2101/365 Application layer names, e.g. buddy names, unstructured names chosen by a user or home appliance name
• 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 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04L 61/30 Managing network names, e.g. use of aliases or nicknames name-to-address mapping H04L61/45
• CPC Class Codes: H04L 61/45 Network directories; Name-to-address mapping
• CPC Class Codes: H04L 61/50 Address allocation

Abstract

A dynamically configurable network architecture comprising networked office appliances which provide network addressing, network naming, service discovery, and user identification in one system. The network architecture provides automatic configuration services for unadministered networks while being automatically adaptable within administered environments.

Claims

1. A method of automatically initializing a first device on a network comprising:

requesting, by the first device, configuration information from a second device upon connecting the first device to the network;

delaying a period of time before continuing with said initialization;

providing, by the first device, configuration services to said network upon determination that a response to said configuration information request is not received from said second device within said period of time;

providing said configuration services to said network in response to said first device having a higher priority than said second device; and

continuously monitoring said network to detect a connection of an additional device to said network.

2. The method defined in claim 1, wherein said providing said configuration services comprises:

automatically determining a first network address;

automatically assigning a second network address;

automatically assigning a network name;

automatically correlating said first network address, said second network address, and said network name; and

recording said correlated first network address, said correlated second network address and said correlated network name in a table.

3. The method defined in claim 2, wherein said first network address comprises a media access control (MAC) address.

4. The method defined in claim 2, wherein said second network address comprises an Internet Protocol (IP) address.

5. The method defined in claim 2, wherein assigning said network name comprises:

detecting a network name conflict;

resolving said network name conflict; and

recording a code in said table to indicate said network name conflict.

6. The method defined in claim 2, wherein said network name is suggested by said first device.

7. The method defined in claim 1, wherein said period of time is varied so as to prevent race conditions.

8. A network comprising:

a first device coupled to said network, said first device configured to;

automatically request a first network address;

automatically receive said first network address from a second device coupled to said network;

automatically provide a network configuration upon determination that said first network address is not received from said second device;

automatically determine a first priority level of said first device on said network if said first network address is received from said second device; and

automatically provide said network configuration in response to said first priority level being higher than a second priority level of said second device.

9. The network defined in claim 8, wherein said first device is a networked office appliance.

10. The network defined in claim 8, wherein the first device is further configured to automatically:

assign a second network address;

assign a network name;

correlate said second network address with said network name; and

record said correlated second network address and said correlated network name in a table.

11. The network defined in claim 10, wherein said table further comprises:

a Media Access Control (MAC) address; and

a code to indicate a conflict with said network name.

12. The network defined in claim 10, wherein said first and second network addresses comprise Internet Protocol (1P) addresses.