Method for managing access to networks by employing client software and a configuration protocol timeout

• US 7,058,022 B1
• Filed: 10/31/2001
• Issued: 06/06/2006
• Est. Priority Date: 03/20/2001
• Status: Expired due to Fees

• Current Assignee: AT&T Corporation (AT&T, Inc.)
• Original Assignee: AT&T Corporation (AT&T, Inc.)
• Inventors: Carolan, Sean E., Freeman, Brian D., Sherman, Paul A.
• Primary Examiner(s): Pezzlo, John
• Assistant Examiner(s): ROBERTS, BRIAN S
• Application Number:
  US09/984,987
• Time in Patent Office: 1,679 Days
• Field of Search: 370/252, 370/389, 370/400, 370/401, 370/411, 370/475, 709217-219, 709/220, 709/221, 709/225, 709/250
• US Class Current: 370/254
• CPC Class Codes: H04L 12/2801 Broadband local area networks
• CPC Class Codes: H04L 12/2856 Access arrangements, e.g. Internet access asynchronous transfer mode networks H04L12/5601; broadband local area networks H04L12/2801; optical access or distribution networks H04Q11/0067; access to open networks H04L12/5691; digital subscriber line end-user equipment and bit-level processing of data on a PSTN-based network H04M11/00; home network gateways H04L12/2834; wireless access networks H04W
• CPC Class Codes: H04L 12/2898 Subscriber equipments DSL modems H04M11/062; cable modems H04L12/2801
• CPC Class Codes: H04L 61/5014 using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
• CPC Class Codes: H04L 61/5061 Pools of addresses

Abstract

A method of configuring a network access device having a network address associated with an extra-regional service provider with a new network address associated with a regional access network provider, where the network access device is connected to a regional access network connected to a plurality of extra-regional service networks. The method includes receiving a request from the network access device requesting the release of access to the extra-regional service network, sending a response from the regional access network, and receiving a network address change request using a configuration protocol. In another aspect of the invention, the network address associated with an extra-regional service provider is automatically released when a regional access network server fails to receive a request to renew the network address lease, and a new network address associated with the regional access network is assigned to the network access device.

Claims

1. A method of configuring a network access device associated with a subscriber of network services of a regional access network and having a network address associated with an extra-regional service network, with a new network address associated with the regional access network, wherein the network access device is connected to the regional access network by a cable modem and the regional access network is connected to a plurality of extra-regional service networks, the method comprising:

receiving from the network access device, a first request for access to the extra-regional service network;

assigning, to the network access device in response to the first request, a first network address allocated to subscribers of the extra-regional service network, the first network address used by the network access device to communicate over the regional access network to the extra-regional service network;

receiving from the network access device, a second request at the regional access network requesting the release of access to the extra-regional service provider;

sending, to the network access device, a response to the second request from the regional access network;

receiving, from the network access device, a network address change request using a configuration protocol, and

assigning to the network access device, a second network address allocated to subscribers of the regional access network, the second network address used by the network access device to communicate data packets with the regional access network.

2. The method of claim 1, wherein the configuration protocol is a dynamic host configuration protocol (DHCP).

3. The method of claim 1, wherein the network access device is assigned an Internet Protocol address.

4. The method of claim 3, wherein the Internet Protocol address is a private address.

5. The method of claim 4, wherein the private address is a binary address having a dotted-decimal equivalent of the type beginning with the number 10.

6. A method of configuring a network access device associated to a subscriber of network services of a regional access network and having a network address associated with a regional access network, with a new network address associated with an extra-regional service network, wherein the network access device is connected to the regional access network by a cable modem and the regional access network is connected to a plurality of extra-regional service networks, the method comprising:

receiving, from the network access device, a first request for access to the regional access network;

assigning, to the network access device in response to the first request, a first network address allocated to subscribers of the regional access network, the first network address used by the network access device to communicate to the regional access network;

receiving, from the network access device, a second request to access an extra-regional service network, wherein the request includes an authentication request for the subscriber;

sending, to the network access device, a response to the second request from the regional access network, wherein the response includes an authentication status for the subscriber; and

when the subscriber is authenticated, receiving, from the network access device a network address change request using a configuration protocol, and

assigning, to the network access device, a second network address allocated to subscribers of the extra-regional service provider, the second network address used by the network access device to communicate data packets to the extra-regional service network.

7. The method of claim 6, wherein the configuration protocol is a dynamic host configuration protocol (DHCP).

8. The method of claim 6, wherein the network access device is assigned an Internet Protocol address.

9. A method of configuring a network access device, the device being associated to a subscriber of network services and having a network address associated with a regional access network, with a new network address associated with an extra-regional service network, wherein the network access device is connected to the regional access network by a cable modem and the regional access network is connected to a plurality of extra-regional service networks, and the access network is in communication with a service activation system, the method comprising:

receiving, from the network access device, a first request for access to the regional access network;

assigning, to the network access device in response to the first request, a first network address allocated to subscribers of the regional access network, the first network address used by the network access device to communicate to the regional access network;

receiving from the network access device, a second request to access an extra-regional service network, wherein the request includes an authentication request for the subscriber;

receiving authentication information for the extra-regional service provider at the service activation system over the regional access network;

sending an authentication status of the subscriber from the service activation system and, when the subscriber is authenticated;

receiving, from the network access device, a network address change request using a configuration protocol, and

assigning, to the network access device, a second network address associated with the extra-regional service provider is assigned to the network access device, the network address being utilized by the network access device to communicate data packets with the extra-regional service network.

10. The method of claim 9, wherein the configuration protocol is a dynamic host configuration protocol (DHCP).

11. The method of claim 9, wherein the network access device is assigned an Internet Protocol address.

12. A method of configuring a network access device of a subscriber of network services of a regional access network and having a network address associated with extra-regional service network, with a new network address allocated to subscribers of the regional access network, wherein the network access device is connected to the regional access network by a cable modem and the regional access network is connected to a plurality of extra-regional service networks, and the access network is in communication with a service activation system having a pre-set authentication period for receiving keep-alive messages from the network access device, the method comprising:

receiving, from the network access device, a first request for access to the regional access network;

assigning, to the network access device in response to the first request, a first network address allocated to subscribers of the regional access network, the first network address used by the network access device to communicate to the regional access network;

receiving, from the network access device, a second request to access an extra-regional service network, wherein the request includes an authentication request for the subscriber;

sending, to the network access device, a response to the second request from the regional access network, wherein the response includes an authentication status for the subscriber;

when the subscriber is authenticated, receiving, from the network access device, a network address change request using a configuration protocol;

assigning, to the network access device, a second network address allocated to subscribers of the extra-regional service provider, the second network address used by the network access device to communicate data packets to the extra-regional service network, the second network address having an authentication period;

failing to receive a keep-alive message from the network access device prior to expiration of the authentication period;

failing to renew a lease for the second network address associated with the extra-regional network service provider; and

assigning new network address using the configuration protocol, the new network access address for communicating data packets with the regional access network.

13. The method of claim 12, further comprising extending the lease of the network service address responsive to receiving periodic keep-alive messages.

14. The method of claim 12, further comprising extending the preset authentication period responsive to a pre-determined level of data traffic flow through the access network.

15. The method of claim 12, wherein the configuration protocol is a dynamic host configuration protocol (DHCP).

16. The method of claim 12, wherein the network access device receives an Internet Protocol address.

17. The method of claim 16, wherein the Internet Protocol address is a private address.

18. The method of claim 17, wherein the private address is a binary address having a dotted-decimal equivalent of the type beginning with the number 10.

19. The method of claim 12, wherein the network access device is connected to a computer-readable medium having computer-executable instructions for sending the keep-alive message, and said failing to receive the keep-alive message includes interfering with execution of the computer-readable instructions.

20. The method of claim 19, wherein said interfering includes interrupting execution of the computer-readable instructions.

21. The method of claim 19, wherein said interfering includes terminating execution of the computer-readable instructions.

22. The method of claim 19, wherein said interfering includes disabling operation of the network access device.

23. A computer-readable medium having computer-executable instructions for enabling a regional access network to perform a method of allocating network addresses to a network address device having a cable modem, the method comprising:

receiving, from the network access device of a subscriber of the regional access network, a first request to access the regional access network;

assigning, to the network access device in response to the first request, a first network address allocated to subscribers of the regional access network, the first network address used by the network access device to communicate to the regional access network;

receiving, from the network access device, a second request to access an extra-regional service network connected to the regional access network, wherein the request includes an authentication request for the subscriber;

sending, to the network access device, a response to the second request from the regional access network, wherein the response includes an authentication status for the subscriber;

when the subscriber is authenticated, receiving, from the network access device, a network address change request using a configuration protocol;

assigning, to the network access device, a second network address allocated to subscribers of the extra regional service provider, the second network address used by the network access device to communicate data packets to the extra-regional service network, the second network address having an authentication period; and

receiving, from the network access device, a keep-alive message for extending authentication of the second network address.

24. The computer-readable medium of claim 23, the method further comprising:

accepting a subscriber request to log-off the extra-regional service network; and

sending a request to the regional access network requesting release of a lease for the second network address associated with the extra-regional service network.