Dynamic internet gateway service

• US 7,089,324 B1
• Filed: 06/14/2001
• Issued: 08/08/2006
• Est. Priority Date: 06/14/2001
• Status: Active Grant

• Current Assignee: Gateway Incorporated (Acer, Inc.)
• Original Assignee: Gateway Incorporated (Acer, Inc.)
• Inventors: Giffin, Mike, LaSor, Jeff, Milius, Daniel C., Goddard, Mark D., Sullivan, Gary E.
• Primary Examiner(s): Etienne, Ario
• Assistant Examiner(s): SALL, EL HADJI MALICK
• Application Number:
  US09/882,098
• Time in Patent Office: 1,881 Days
• Field of Search: 709/225, 709/226, 709/223, 709/239, 709/240, 370/238, 370/338
• US Class Current: 709/240
• CPC Class Codes: H04L 12/5692 Selection among different networks

Abstract

The present invention provides for a local network comprising a plurality of interconnected computing devices that dynamically assigns a new Internet gateway server for the local network when the currently assigned Internet gateway is not connected to the local network and the Internet. Each one of the computing devices capable of connecting to the Internet is given a different connection priority, which indicates the desirability of assigning the respective computing device as the Internet gateway server. When a computing device in the local network is unable to access the Internet through the currently assigned Internet gateway server, the computing device broadcasts a message to the entire local network requesting to become the new Internet gateway server. The request to become the gateway includes the connection priority of the computing device. Each computing device on the local network capable of connecting to the ISP responds to each request to become the gateway having a lower connection priority by broadcasting its own request to become the gateway. The computing device having the highest connection priority in the local network receives no response from the other computing devices to its requests to become the gateway. When this occurs, the computing device having the highest connection priority assigns itself as the new Internet gateway for the local network.

Claims

1. In a network comprising a plurality of computing devices, each computing device having a memory and being capable of accessing the Internet, and at least one of the computing devices being capable of connecting to the Internet, each computing device capable of connecting to the Internet having a connection priority, a method for assigning an Internet gateway for the network, comprising the steps of:

broadcasting to the network a request to become the gateway from one of the computing devices capable of connecting to the Internet, wherein the request to become the gateway includes the connection priority of the computing device broadcasting the request; and

assigning the computing device broadcasting the request as the gateway for the network if the computing device broadcasting the request does not receive a response from the other computing devices within a predetermined time period.

2. The method of claim 1, wherein the predetermined time period is approximately 1 to 5 seconds.

3. The method of claim 1, wherein each computing device is assigned a unique Internet protocol (IP) address, further comprising the steps of:

broadcasting to the network the IP address of the computing device assigned as the gateway for the network; and

storing in the memory of each computing device the IP address broadcasted to the network as the IP address of the gateway for the network.

4. The method of claim 1, wherein the computing device assigned as the gateway for the network is assigned a unique client IP address and assumes a predetermined gateway IP address.

5. The method of claim 1, wherein one of the computing devices is capable of operating as a proxy for the Internet gateway and is capable of being assigned a unique client IP address and a proxy IP address, and further wherein at least one of the other computing devices is capable of accessing the Internet by performing the steps of:

transmitting from the respective computing device to the proxy IP address of the proxy a message to be sent to the Internet; and

transmitting from the proxy IP address of the proxy to the computing device assigned as the gateway for the network the message to be sent to the Internet.

6. The method of claim 1, wherein at least one of the other computing devices capable of connecting to the Internet responds to the broadcasted request to become the gateway by performing the step of:

determining whether the connection priority of the respective computing device is higher than the connection priority included in the broadcasted request to become the gateway;

if the connection priority of the respective computing device is not higher than the connection priority included in the broadcasted request, sending no response to the broadcasted request; and

if the connection priority of the respective computing device is higher than the connection priority included in the broadcast request, performing the steps of;

broadcasting to the network a request to become the gateway from the respective computing device within the predetermined time period, wherein the request to become the gateway includes the connection priority of the respective computing device; and

assigning the respective computing device as the gateway for the network if the respective computing device receives no response from the other computing devices within the predetermined time period.

7. The method of claim 6, wherein the predetermined time period is approximately 1 to 5 seconds.

8. The method of claim 6, wherein each computing device is assigned a unique Internet protocol (IP) address, further comprising the step of:

broadcasting to the network the IP address of the computing device assigned as the gateway for the network; and

storing in the memory of each computing device the IP address broadcasted to the network as the IP address of the gateway for the network.

9. The method of claim 6, wherein the computing device assigned as the gateway for the network is assigned a unique client IP address and assumes a predetermined gateway IP address.

10. The method of claim 6, wherein one of the computing devices is capable of operating as a proxy for the Internet gateway and is capable of being assigned a unique client IP address and a proxy IP address, further wherein at least one of the other computing devices is capable of accessing the Internet by performing the steps of:

transmitting from the respective computing device to the proxy a IP address of the proxy a message to be sent to the Internet; and

transmitting from the proxy IP address of the proxy to the computing device assigned as the gateway for the network the message to be sent to the Internet.

11. A storage medium readable by a computing device and having instructions encoded thereon for causing the computing device to perform, in a network comprising a plurality of computing devices, each computing device having a memory and being capable of accessing the Internet, and at least one of the computing devices being capable of connecting to the Internet, each computing device capable of connecting to the Internet having a connection priority, a method for assigning an Internet gateway for the network, the method comprising the steps of:

broadcasting to the network a request to become the gateway from one of the computing devices capable of connecting to the Internet, wherein the request to become the gateway includes the connection priority of the computing device broadcasting the request; and

assigning the computing device broadcasting the request as the gateway for the network if the computing device broadcasting the request does not receive a response from the other computing devices within a predetermined time period.

12. The storage medium of claim 11, wherein each computing device is assigned a unique Internet protocol (IP) address, and further wherein the method further comprises the steps of:

broadcasting to the network the IP address of the computing device assigned as the gateway for the network; and

storing in the memory of each computing device the IP address broadcasted to the network as the IP address of the gateway for the network.

13. The storage medium of claim 11, wherein the computing device assigned as the gateway for the network is assigned a unique client IP address and assumes a predetermined gateway IP address.

14. The storage medium of claim 11, wherein one of the computing devices is capable of operating as a proxy for the Internet gateway and is capable of being assigned a unique client IP address and a proxy IP address, and further wherein at least one of the other computing devices is capable of accessing the Internet by performing the steps of:

transmitting from the respective computing device to the proxy IP address of the proxy a message to be sent to the Internet; and

transmitting from the proxy IP address of the computing device assigned as the gateway for the network the message to be sent to the Internet.

15. The storage medium of claim 11, wherein at least one of the other computing devices capable of connecting to the Internet responds to the broadcasted request to become the gateway for the network by performing the steps of:

determining whether the Connection priority of the respective computing device is higher than the connection priority included in the broadcasted request to become the gateway;

if the connection priority of the respective computing device is not higher than the connection priority included in the broadcasted request, sending no response to the broadcasted request; and

if the connection priority of the respective computing device is higher than the connection priority included in the broadcasted request, performing the steps of;

broadcasting to the network a request to become the gateway from the respective computing device within the predetermined time period, wherein the request to become the gateway includes the connection priority of the respective computing device; and

assigning the respective computing device as the gateway for the network if the respective computing device receives no response from the other computing devices within the predetermined time period.

16. In a network comprising a plurality of computing devices, each computing device having a memory and being capable of accessing the Internet, and at least on of the computing devices being capable of connecting to the Internet, each computing device capable of connecting to the Internet having a connection priority, a method for assigning an Internet gateway for the network, comprising the steps of:

broadcasting to the network a request for a new gateway from one of the computing devices;

in response to the request for new gateway, broadcasting to the network a request to become the gateway from each computing device capable of connecting to the Internet, wherein each request to become the gateway includes the connection priority of the respective computing device broadcasting the request to become the gateway; and

in response to the request to become the gateway, performing by each computing device capable of connecting to the Internet steps of;

determining whether the connection priority of the respective computing device is higher than the connection priority included in the broadcasted request to become the gateway;

if the connection priority of the respective computing device is not higher than the connection priority included in the broadcasted request to become the gateway, sending no response to the broadcasted request to become the gateway; and

if the connection priority of the respective computing device is higher than the connection priority included in the broadcasted request to become the gateway, performing the steps of;

broadcasting to the network a request to become the gateway from the respective computing device within the predetermined time period, wherein the request to become the gateway includes the connection priority of the respective computing device; and

assigning the respective computing device as the new gateway for the network if the respective computing device receives no response from the other computing devices within the predetermined time period.

17. The method of claim 16, wherein the predetermined time period is approximately 1 to 5 seconds.

18. The method of claim 16, wherein each computing device is assigned a unique Internet protocol (IP) address, further comprising the steps of:

broadcasting to the network the IP address of the computing device assigned as the new gateway for the network; and

storing in the memory of each computing device the IP address broadcasted to the network as the IP address of the gateway for the network.

19. The method of claim 16, wherein the computing device assigned as the gateway for the network is assigned a unique client IP address and assumes a predetermined gateway IP address.

20. The method of claim 16, wherein one of the computing devices is capable of operating as a proxy for the Internet gateway and is capable of being assigned a unique client IP address and a proxy IP address, and further wherein at least one of the other computing devices is capable of accessing the Internet by performing the steps of:

transmitting from the respective computing device to the proxy IP address of the proxy a message to be sent to the Internet; and

transmitting from the proxy IP address of the proxy to the computing device assigned as the gateway for the network the message to be sent to the Internet.

21. A storage medium readable by a computing device and having instructions encoded thereon for causing the computing device to perform, in a network comprising a plurality of computing devices, each computing device having a memory and being capable of accessing the Internet, and at least one of the computing devices being capable of connecting to the Internet, each computing device capable of connecting to the Internet having a connection priority, a method for assigning an Internet gateway for the network, the method comprising the steps of:

broadcasting to the network a request for a new gateway from one of the computing devices;

in response to the request for the new gateway, broadcasting to the network a request to become the gateway from each computing device capable of connecting to the Internet, wherein each request to become the gateway includes the connection priority of the respective computing device broadcasting the request to become the gateway; and

in response to the request to become the gateway, performing by each computing device capable of connecting to the Internet the steps of;

determining whether the connection priority of the respective computing device is higher than the connection priority included in the broadcasted request to become the gateway;

if the connection priority of the respective computing device is not higher than the connection priority included in the broadcasted request to become the gateway, sending no response to the broadcasted request to become the gateway; and

if the connection priority of the respective computing device is higher than the connection priority included in the broadcasted request to become the gateway, performing the steps of;

broadcasting to the network a request to become the gateway from the respective computing device within the predetermined time period, wherein the request to become the gateway includes the connection priority of the respective computing device; and

assigning the respective computing device as the gateway for the network if the respective computing device receives no response from the other computing devices within the predetermined time period.

22. The storage medium of claim 21, wherein each computing device is assigned a unique Internet protocol (IP) address, and further wherein the method further comprises the steps of:

broadcasting to the network the IP address of the computing device assigned as the new gateway for the network; and

storing in the memory of each computing device the IP address broadcasted to the network as the IP address of the gateway for the network.

23. The storage medium of claim 21, wherein the computing device assigned as the gateway for the network is assigned a unique client IP address and assumes a predetermined gateway IP address.

24. The storage medium of claim 21, wherein one to the computing devices is capable of operating as a proxy for the Internet gateway and is capable of being assigned a unique client IP address and a proxy IP address, and further wherein at least one of the other computing devices is capable of accessing the Internet by performing the steps of:

transmitting from the respective computing device to the proxy IP address of the proxy a message to be sent to the Internet; and

transmitting from the proxy IP address of the proxy to the computing device assigned as the gateway for the network the message to be sent to the Internet.