Dynamic wan port detection

• US 20040114610A1
• Filed: 12/16/2002
• Published: 06/17/2004
• Est. Priority Date: 12/16/2002
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Featherston, Lord Nigel, Getzinger, Thomas W., Lee, Dennis M.
• Granted Patent: US 7,280,547 B2
• Time in Patent Office: Days
• US Class Current: 370/401
• CPC Class Codes: H04L 12/2854 Wide area networks, e.g. public data networks
• CPC Class Codes: H04L 12/2898 Subscriber equipments DSL modems H04M11/062; cable modems H04L12/2801

Abstract

A method and system for automatically detecting a wide area network (WAN) communication connection to a selected one of a plurality of substantially equivalent communication ports. An initiation event, such as a link detect or a power on event, is detected for the selected port. An attempt is then made to access the WAN through the selected port. For example, an Internet connection request may be sent through the selected port. If a response is received through the selected port, the response is evaluated to determine if the attempt to access the WAN was successful. If the attempt was successful, the selected port is set as the WAN communication connection. Otherwise, the selected port is set as a local area network communication connection. Preferably, the dynamic WAN port detection is performed by a network device, such as a gateway, or by a computer in communication with a network device.

Claims

1. A method for automatically detecting a wide area network (WAN) communication connection to a communication port of an electronic device that includes a plurality of substantially equivalent communication ports, comprising the steps of:

(a) detecting an initiation event on a selected communication port of the plurality of substantially equivalent communication ports, where the selected communication port is arbitrarily chosen by a user;

(b) automatically attempting to access a WAN through the selected communication port, in response to the initiation event;

(c) determining whether the attempt to access the WAN through the selected communication port was successful; and

(d) setting the selected communication port as the WAN communication connection if the attempt was successful.

2. The method of claim 1, further comprising the step of automatically setting the selected communication port as a local area network (LAN) communication connection if the attempt was not successful.

3. The method of claim 1, wherein the step of detecting an initiation event comprises one of the steps of:

(a) detecting a coupling of a communication line to the selected communication port;

(b) detecting an application of a signal to the selected communication port;

(c) detecting an application of power to the electronic device; and

(d) detecting a user action to initiate configuration of the selected communication port.

4. The method of claim 1, wherein the step of automatically attempting to access the WAN comprises at least one of the steps of:

(a) issuing a connection request through the selected communication port to a predetermined uniform resource identifier;

(b) issuing a dynamic host configuration protocol request through the selected communication port;

(c) issuing a point-to-point protocol over Ethernet active discovery request through the selected communication port; and

(d) issuing a ping command through the selected communication port to an address provided by a user.

5. The method of claim 4, wherein the step of determining whether the attempt to access the WAN on the selected communication port was successful, comprises one of the steps of:

(a) receiving a connection verification through the selected communication port from the predetermined uniform resource identifier;

(b) receiving a valid dynamic host configuration protocol response through the selected communication port in response to the dynamic host configuration protocol request;

(c) receiving a point-to-point protocol over Ethernet active discovery offer through the selected communication port in response to the point-to-point protocol over Ethernet active discovery request; and

(d) receiving a ping verification through the selected communication port from the address provided by the user.

6. The method of claim 1, wherein the steps are performed by one of:

(a) the electronic device; and

(b) a computing device coupled to the computing device.

7. The method of claim 1, wherein prior to the step of attempting to access the WAN through the selected communication port, further comprising the steps of:

(a) determining whether a WAN communication connection was previously defined; and

(b) if a WAN communication connection was previously defined, determining if the previously defined WAN communication connection is currently valid.

8. The method of claim 1, wherein prior to the step of attempting to access the WAN through the selected communication port, further comprising at least one of the step of:

(a) obtaining a confirmation that a WAN is available; and

(b) obtaining a confirmation that a user desires automatic detection of the WAN communication connection.

9. The method of claim 1, further comprising the step of storing in a nonvolatile memory an indication that the selected communication port is currently set as the WAN communication connection.

10. The method of claim 1, wherein the electronic device is configured to convey data with at least one of:

(a) an Ethernet protocol; and

(b) a transmission control protocol/Internet protocol.

11. A memory medium having machine instructions comprising a boot code stored thereon for carrying out the steps of claim 1.

12. A system for automatically detecting a wide area network (WAN) communication connection in an electronic device, comprising:

(a) a processor;

(b) a plurality of substantially equivalent communication ports, each in communication with the processor;

(c) a memory in communication with the processor and storing machine instructions, said machine instructions causing the processor to carry out a plurality of functions, including;

(i) detecting an initiation event on a selected communication port of the plurality of substantially equivalent communication ports;

(ii) attempting to access a WAN through the selected communication port, in response to the initiation event;

(iii) determining whether the attempt to access the WAN through the selected communication port was successful; and

(iv) setting the selected communication port as the WAN communication connection if the attempt was successful.

13. The system of claim 12, wherein the machine instructions further cause the processor to carry out the function of setting the selected communication port as a LAN communication connection if the attempt was not successful.

14. The system of claim 12, wherein the machine instructions further cause the processor to carry out one of the functions of:

(a) detecting a coupling of a communication line to the selected communication port;

(b) detecting an application of a signal to the selected communication port;

(c) detecting an application of power to the electronic device; and

(d) detecting a user action to activate the selected communication port.

15. The system of claim 12, wherein the machine instructions further cause the processor to carry out at least one of the functions of:

(a) issuing a connection request through the selected communication port to a predetermined uniform resource identifier;

(b) issuing a dynamic host configuration protocol request through the selected communication port;

(c) issuing a point-to-point protocol over Ethernet active discovery request through the selected communication port; and

(d) issuing a ping command through the selected communication port to an address provided by a user.

16. The system of claim 15, wherein the machine instructions further cause the processor to carry out one of the functions of:

(a) receiving a connection verification through the selected communication port from the predetermined uniform resource identifier;

(b) receiving a valid dynamic host configuration protocol response through the selected communication port in response to the dynamic host configuration protocol request;

(c) receiving a point-to-point protocol over Ethernet active discovery offer through the selected communication port in response to the point-to-point protocol over Ethernet active discovery request; and

(d) receiving a ping verification through the selected communication port from the address provided by the user.

17. The system of claim 12, further comprising an Ethernet switch in communication with the processor and the plurality of substantially equivalent communication ports, wherein the Ethernet switch controls communication between each of the plurality of substantially equivalent communication ports and the processor, and controls communication among the plurality of substantially equivalent communication ports.

18. The system of claim 12, further comprising:

(a) a display for providing a user interface to a user; and

(b) an input device enabling a user to provide information to the system.

19. The system of claim 12, wherein the system is compatible with at least one of:

(a) an Ethernet protocol; and

(b) a transmission control protocol/Internet protocol.

20. The system of claim 12, wherein the system comprises one of a computer, a gateway, a router, a switch, a bridge, a hub, and a firewall.