Inter-proxy communication protocol for mobile IP
First Claim
1. In a first access point, a method of supporting mobility for a node that does not support Mobile IP, comprising:
- sending an inter-proxy request message to an IP address identifying an inter-proxy multicast group to which the first access point belongs, the inter-proxy request message identifying the node and indicating that IP configuration information for the node is requested, wherein a plurality of access points are members of the inter-proxy multicast group, thereby enabling the inter-proxy request message to be received by the plurality of access points; and
receiving an inter-proxy reply message from a second access point in the plurality of access points in the inter-proxy multicast group, the inter-proxy reply message including the IP configuration information, thereby enabling the first access point to send a registration request on behalf of the node using the IP configuration information, wherein the IP address does not uniquely identify the second access point, wherein the registration request is a Mobile IP registration request, wherein the second access point is not a Home Agent of the node.
1 Assignment
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Accused Products
Abstract
Methods and apparatus for ascertaining configuration information for a node are disclosed. A first access point sends an inter-proxy request message to one or more additional access points, the inter-proxy request message identifying the node and indicating that IP configuration information for the node is requested. The first access point then receives an inter-proxy reply message from a second one of the additional access points, the inter-proxy reply message including the IP configuration information, thereby enabling the first access point to send a registration request on behalf of the node using the IP configuration information. In this manner, the Access Points support mobility for a node that does not support Mobile IP.
128 Citations
38 Claims
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1. In a first access point, a method of supporting mobility for a node that does not support Mobile IP, comprising:
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sending an inter-proxy request message to an IP address identifying an inter-proxy multicast group to which the first access point belongs, the inter-proxy request message identifying the node and indicating that IP configuration information for the node is requested, wherein a plurality of access points are members of the inter-proxy multicast group, thereby enabling the inter-proxy request message to be received by the plurality of access points; and receiving an inter-proxy reply message from a second access point in the plurality of access points in the inter-proxy multicast group, the inter-proxy reply message including the IP configuration information, thereby enabling the first access point to send a registration request on behalf of the node using the IP configuration information, wherein the IP address does not uniquely identify the second access point, wherein the registration request is a Mobile IP registration request, wherein the second access point is not a Home Agent of the node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. In a second access point, a method of supporting mobility for a node that does not support Mobile IP, comprising:
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receiving an inter-proxy request message from a first access point in an inter-proxy multicast group, the inter-proxy request message being addressed to an inter-proxy multicast group address associated with the inter-proxy multicast group to which the second access point belongs and indicating that IP configuration information for the node is requested, wherein a plurality of access points are members of the inter-proxy multicast group, thereby enabling the inter-proxy request message to be received by the plurality of access points; sending an inter-proxy reply message to the first access point, the inter-proxy reply message including the IP configuration information, thereby enabling the first access point to send a registration request on behalf of the node using the IP Configuration information, wherein the registration request is a Mobile IP registration request, wherein the second access point is not a Home Agent of the node; wherein the inter-proxy request message does not uniquely identify the second access point. - View Dependent Claims (11, 12, 13, 14, 15)
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16. In a first access point, a method of supporting mobility for a node that does not support Mobile IP, comprising:
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sending an inter-proxy request message to an inter-proxy multicast group address associated with an inter-proxy multicast group to which the first access point belongs, the inter-proxy multicast group including one or more additional access points, the inter-proxy request message identifying the node and indicating that IP configuration information for the node is requested, thereby enabling the one or more additional access points to receive the inter-proxy request message; and receiving an inter-proxy reply message from a second one of the additional access points in the inter-proxy multicast group, the inter-proxy reply message including the IP configuration information, thereby enabling the first access point to send a registration request on behalf of the node using the IP configuration information, wherein the registration request is a Mobile IP registration request, wherein the second access point is not a Home Agent of the node, wherein the inter-proxy multicast group address does not uniquely identify the second one of the additional access points. - View Dependent Claims (17)
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18. A computer-readable medium storing thereon computer-readable instructions for supporting mobility for a node that does not support Mobile IP in a first access point, comprising:
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instructions for sending an inter-proxy request message to an inter-proxy multicast group address associated with an inter-proxy multicast group to which the first access point belongs, the inter-proxy multicast group including one or more additional access points, the inter-proxy request message identifying the node and indicating that IP configuration information for the node is requested, thereby enabling the one or more additional access points to receive the inter-proxy request message; and instructions for receiving an inter-proxy reply message from a second one of the additional access points in the inter-proxy multicast group, the inter-proxy reply message including the IP configuration information, thereby enabling the first access point to send a registration request on behalf of the node using the IP configuration information, wherein the registration request is a Mobile IP registration request, wherein the second access point is not a Home Agent of the node, wherein the inter-proxy multicast group address does not uniquely identify the second one of the additional access points.
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19. A first access point supporting mobility for a node that does not support Mobile IP, comprising:
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means for sending an inter-proxy request message to an inter-proxy multicast group address associated with an inter-proxy multicast group to which the first access point belongs, the inter-proxy multicast group including one or more additional access points, the inter-proxy request message identifying the node and indicating that IP configuration information for the node is requested, thereby enabling the one or more additional access points to receive the inter-proxy request message; and means for receiving an inter-proxy reply message from a second one of the additional access points in the inter-proxy multicast group, the inter-proxy reply message including the IP configuration information, thereby enabling the first access point to send a registration request on behalf of the node using the IP configuration information, wherein the registration request is a Mobile IP registration request, wherein the second access point is not a Home Agent of the node, wherein the inter-proxy multicast group address does not uniquely identify the second one of the additional access points.
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20. A first access point supporting mobility for a node that does not support Mobile IP, comprising:
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a processor; and a memory, at least one of the processor and the memory being for; sending an inter-proxy request message to an IP address identifying an inter-proxy multicast group to which the first access point belongs, the inter-proxy request message identifying the node and indicating that IP configuration information for the node is requested, wherein a plurality of access points are members of the inter-proxy multicast group, thereby enabling the inter-proxy request message to be received by the plurality of access points; and receiving an inter-proxy reply message from a second access point in the plurality of access points in the inter-proxy multicast group, the inter-proxy reply message including the IP configuration information, thereby enabling the first access point to send a registration request on behalf of the node using the IP configuration information, wherein the registration request is a Mobile IP registration request, wherein the second access point is not a Home Agent of the node, wherein the IP address does not uniquely identify the second access point. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A first access point supporting mobility for a node that does not support Mobile IP, comprising:
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a processor; and a memory, at least one of the processor and the memory being adapted for; sending an inter-proxy request message to an inter-proxy multicast group address associated with an inter-proxy multicast group to which the first access point belongs, the inter-proxy multicast group including one or more additional access points, the inter-proxy request message identifying the node and indicating that IP configuration information for the node is requested, thereby enabling the one or more additional access points to receive the inter-proxy request message; and receiving an inter-proxy reply message from a second one of the additional access points in the inter-proxy multicast group, the inter-proxy reply message including the IP configuration information, thereby enabling the first access point to send a registration request on behalf of the node using the IP configuration information, wherein the registration request is a Mobile IP registration request, wherein the second access point is not a Home Agent of the node, wherein the inter-proxy multicast group address does not uniquely identify the second one of the additional access points.
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37. A computer-readable medium storing thereon computer-readable instructions for supporting mobility for a node that does not support Mobile IP in a first access point, comprising:
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instructions for sending an inter-proxy request message to an IP address identifying an inter-proxy multicast group to which the first access point belongs, the inter-proxy request message identifying the node and indicating that IP configuration information for the node is requested, wherein a plurality of access points are members of the inter-proxy multicast group, thereby enabling the inter-proxy request message to be received by the plurality of access points; and instructions for receiving an inter-proxy reply message from a second access point in the plurality of access points in the inter-proxy multicast group, the inter-proxy reply message including the IP configuration information, thereby enabling the first access point to send a registration request on behalf of the node using the IP configuration information, wherein the registration request is a Mobile IP registration request, wherein the second access point is not a Home Agent of the node, wherein the IP address does not uniquely identify the second access point.
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38. A first access point supporting mobility for a node that does not support Mobile IP, comprising:
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means for sending an inter-proxy request message to an IP address identifying an inter-proxy multicast group to which the first access point belongs, the inter-proxy request message identifying the node and indicating that IP configuration information for the node is requested, wherein a plurality of access points are members of the inter-proxy multicast group, thereby enabling the inter-proxy request message to be received by the plurality of access points; and means for receiving an inter-proxy reply message from a second access point in the plurality of access points in the inter-proxy multicast group, the inter-proxy reply message including the IP configuration information, thereby enabling the first access point to send a registration request on behalf of the node using the IP configuration information, wherein the registration request is a Mobile IP registration request wherein the second access point is not a Home Agent of the node, wherein the IP address does not uniquely identify the second access point.
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Specification