Mobile IPv6 route optimization authorization
First Claim
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1. A communication system, comprising:
- a home network having a home agent supporting communication on the home network;
a foreign network having a foreign agent and a connected mobile node, said mobile node is adapted to transmit and receive information packets with a correspondent node,said home agent is adapted to determine based on a message sent from the mobile node whether route optimization protocols can be initiated allowing direct communications between said mobile node and said correspondent node or whether such route optimization protocols should be denied so that all communications between the correspondent node and the mobile node are routed through said home network; and
said home agent is adapted to confirm route optimization with a first acknowledgment message sent to the mobile node, and a second acknowledgment message sent to the correspondent node.
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Abstract
The invention consists of a new route optimization authorization enabling mechanism. The current Mobile IPv6 protocols do not allow for optional control over the use of route optimization. The present invention allows for system control over whether route optimization is allowed or not allowed. The conditional allowance of route optimization solves several billing and security issues by allowing the system to impose appropriate charges for the route optimization feature or prevent route optimization where traffic flow can be monitored by the home network.
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Citations
20 Claims
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1. A communication system, comprising:
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a home network having a home agent supporting communication on the home network; a foreign network having a foreign agent and a connected mobile node, said mobile node is adapted to transmit and receive information packets with a correspondent node, said home agent is adapted to determine based on a message sent from the mobile node whether route optimization protocols can be initiated allowing direct communications between said mobile node and said correspondent node or whether such route optimization protocols should be denied so that all communications between the correspondent node and the mobile node are routed through said home network; and said home agent is adapted to confirm route optimization with a first acknowledgment message sent to the mobile node, and a second acknowledgment message sent to the correspondent node. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of optionally allowing route optimization between a mobile node on a first network and a correspondent node comprising the steps of:
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connecting a mobile node to said first network; transmitting a binding update message from the mobile node on said first network to a home agent on a home network, determining based on a message sent from the mobile node whether route optimization can be initiated allowing direct communications between said mobile node and said correspondent node or whether such route optimization should be denied so that all communications between said mobile node and said correspondent node have to be routed through the home network; transmitting a first acknowledgement message from the home agent to the mobile node that indicates whether route optimization is authorized or not; and transmitting a second acknowledgment message from the home agent to the correspondent node. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A communication system, comprising:
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a home network having a home agent and an AAA server supporting communication on the home network; a foreign network having a foreign agent and a connected mobile node, said mobile node is adapted to transmit and receive information packets with a correspondent node, said home agent is adapted to determine based on a message from the mobile node whether route optimization protocols can be initiated allowing direct communications between said mobile node and said correspondent node or whether such route optimization protocols should be denied so that all communications between the correspondent node and the mobile node are routed through said home network, and said home agent is adapted to confirm the route optimization authorization status to the mobile node by a first acknowledgment message and to confirm the route optimization authorization status to the correspondent node by a second acknowledgment message. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification