Method and apparatus for connecting a home network to the internet

• US 6,584,096 B1
• Filed: 12/30/1998
• Issued: 06/24/2003
• Est. Priority Date: 12/30/1998
• Status: Expired due to Term

• Current Assignee: RPX Clearinghouse LLC (RPX Corporation)
• Original Assignee: Nortel Networks Limited (Nortel Networks Corporation)
• Inventors: Allan, Ian David
• Primary Examiner(s): Nguyen, Chau
• Assistant Examiner(s): HYUN, SOON D
• Application Number:
  US09/222,835
• Time in Patent Office: 1,637 Days
• Field of Search: 370/401, 370/402, 370/431, 370/432, 370/462, 370/463, 370/389, 370/392, 370/403, 370/404, 370/465, 370/471, 370/475, 370/485, 370/486, 370/487, 709/225, 709/238, 709/245, 709/203, 709/217, 709/219
• US Class Current: 370/352
• CPC Class Codes: H04L 12/2803 Home automation networks
• CPC Class Codes: H04L 12/2836 Protocol conversion between an external network and a home network controlling appliance services of a home automation network from a device located outside the home and the home network H04L12/2818; protocol conversion H04L69/08; adaptation of digital video signals for transport over a specific home network H04N7/24
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04L 2012/2845 Telephone line
• CPC Class Codes: H04L 2101/663 Transport layer addresses, e.g. aspects of transmission control protocol [TCP] or user datagram protocol [UDP] ports
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04L 61/2514 between local and global IP addresses
• CPC Class Codes: H04L 61/2517 using port numbers
• CPC Class Codes: H04L 61/2546 Arrangements for avoiding unnecessary translation
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/161 Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A method and apparatus for connecting a home network to the Internet using the ports or sockets of the home gateway to multiplex the data flow. The devices on the home network may be client or server applications. The home gateway has a single Internet address. Unicast and multicast data flows to the home network are supported. The apparatus includes the home network and a home gateway. The home network includes at least one home network device. The home gateway includes at least one home gateway port. Each home network device is connected to at least one home gateway port. The home gateway is connected to the Internet. The home network includes means for autodiscovering, for each of the at least one home network device, the home Internet address. The method includes the steps of connecting at least one home network device to a home gateway using at least one home gateway port, connecting the home gateway to the Internet using a single Internet address and autodiscovering, for each of the at least one home network device, the home Internet address.

Claims

1. A method for connecting a home network to the Internet, the method comprising the steps of:

connecting, using a unicast data stream, at least one client application device to a home gateway using at least one home gateway port;

connecting the home gateway to the Internet using a single Internet address;

autodiscovering, for each of the at least one client application device, the home Internet address;

using one home gateway port in the connecting between the home gateway and the client application device step;

before the connecting between the home gateway and the client application device step, requesting the home gateway port; and

after the connecting between the home gateway and the client application device step is no longer required, relinquishing the home gateway port.

2. A method as recited in claim 1, further comprising the step of using a telephone as the client application device.

3. A method as recited in claim 1, further comprising the step of using a facsimile machine as the client application device.

4. A method for connecting a home network to the Internet, the method comprising the steps of:

connecting, using a unicast data stream, at least one server application device to a home gateway using at least one home gateway port;

connecting the home gateway to the Internet using a single Internet address;

autodiscovering, for each of the at least one server application device, the home Internet address;

using one home gateway port as a first home gateway port;

using another home gateway port as a second home gateway port;

before the connecting between the home gateway and the server application device step, requesting the first home gateway port;

after connecting the server application device to the first home gateway port, listening on the first home gateway port for an initial data transaction;

after the initial data transaction arrives, requesting the second home gateway port;

after requesting the second home gateway port, connecting the data transaction flow to the second home gateway port;

after connecting the data transaction flow to the second home gateway port, connecting the server application device to the second home gateway port;

after connecting the server application device to the second home gateway port, relinquishing the first home gateway port; and

after the end of the data transaction flow, relinquishing the second home gateway port.

5. A method as recited in claim 4, further comprising the step of using a telephone as the server application device.

6. A method as recited in claim 4, further comprising the step of using a facsimile machine as the server application device.

7. A method for connecting a home network to the Internet, the method comprising the steps of:

connecting, using a multicast data stream, at least two client application devices to a home gateway using at least one home gateway port;

connecting the home gateway to the Internet using a single Internet address;

autodiscovering, for each of the at least two client application devices, the home Internet address;

using one home gateway port in the connecting between the home gateway and the client application devices step;

before the connecting between the home gateway and the client application devices step, requesting the home gateway port; and

after the connecting between the home gateway and the client application devices step is no longer required, relinquishing the home gateway port.

8. A method as recited in claim 7, further comprising the step of using telephones as the client application devices.

9. A method for connecting a home network to the Internet, the method comprising the steps of:

connecting, using a multicast data stream, at least two server application devices to a home gateway using at least one home gateway port;

connecting the home gateway to the Internet using a single Internet address;

autodiscovering, for each of the at least two server application devices, the home Internet address;

using one home gateway port as a first home gateway port;

using another home gateway port as a second home gateway port;

before the connecting between the home gateway and the server application devices step, requesting the first home gateway port;

after connecting the server application devices to the first home gateway port, listening on the first home gateway port for an initial data transaction;

after the initial data transaction arrives, requesting the second home gateway port;

after requesting the second home gateway port, connecting the data transaction flow to the second home gateway port;

after connecting the data transaction flow to the second home gateway port, connecting two or more of the server application devices to the second home gateway port;

after connecting the two or more server application devices to the second home gateway port, relinquishing the first home gateway port; and

after the end of the data transaction flow, relinquishing the second home gateway port.

10. A method as recited in claim 9, further comprising the step of using telephones as the server application devices.

11. A method for connecting Internet Protocol (IP) telephones on a home network to the Internet using a single Internet address, the method comprising the steps of:

for each IP telephone in the house, autodiscovering the home Internet address;

registering interest in a home gateway port associated with IP telephony;

multicasting incoming data traffic to the home Internet address, and the IP telephony port, within the home to all the IP telephones;

ringing all the IP telephones;

arbitrating between IP telephones; and

multimedia mixing to have the IP telephones work like a POTS paradigm.

12. A method for connecting a personal computer on a home network to the Internet using a single Internet address, the method comprising the steps of:

using the computer, issuing a DHCP to the home network;

using the IPRP, carrying the DHCP to a residential gateway;

using the gateway, recognizing the DHCP by the combination of a higher layer protocol identifier and a target port;

using the gateway, responding with the home Internet address;

for an outgoing World Wide Web (WWW) browsing request, borrowing a port number from the residential gateway;

using that port number for a browsing session;

spawning additional windows or services using more port numbers; and

using application level software that is correctly aware of the home Internet address that is used with the target port number, thus enabling client based applications such as electronic commerce.