Home agent redirection for mobile IP
First Claim
1. A mobile IP network, comprising:
- a home authentication, authorization and accounting (AAA) server for receiving authentication requests and for generating authentication responses;
a configured home agent (HA);
a mobile terminal for connecting to the mobile IP network by way of the configured HA;
a local AAA server for communicating with the home AAA server to authenticate the mobile terminal seeking access to the mobile IP network by way of the configured HA, the local AAA server coupled to the communicate with the configured HA and with the home AAA server;
a provisioning server coupled to provide preferred HA addresses for a group of mobile terminals to the home AAA server; and
wherein;
the mobile terminal specifies the configured home agent when seeking access to the mobile IP network through an access point, the configured home agent address being stored within the mobile terminal;
the home AAA server, responsive to having received the preferred HA addresses for the group of mobile terminals including the mobile terminal, sends an authentication response to the local AAA server, the authentication response including the preferred HA address for the mobile terminal; and
the local AAA server, responsive to receiving the authentication response from the home AAA server, generates an authentication failure message to the mobile terminal, the authentication failure message including the preferred HA address.
7 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus are provided for dynamically redirecting mobile terminal home agent selection in a mobile IP network. A provisioning server assigns a preferred home agent to a group of mobile terminals based on one of a subscriber special services, subscriber connectivity, and home agent capacity. The provisioning server transmits the preferred home agent address to a home authentication, authorization, and accounting (AAA) server which updates a AAA database. The mobile terminal seeking access to the mobile IP network first registers with a configured home agent address stored in the mobile terminal. The configured home agent communicates with the home AAA server to authenticate the mobile terminal. The home AAA server fails the mobile terminal authentication request and provides the address of the preferred home agent. The mobile terminal reregisters with the preferred home agent to access the mobile IP network.
38 Citations
19 Claims
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1. A mobile IP network, comprising:
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a home authentication, authorization and accounting (AAA) server for receiving authentication requests and for generating authentication responses; a configured home agent (HA); a mobile terminal for connecting to the mobile IP network by way of the configured HA; a local AAA server for communicating with the home AAA server to authenticate the mobile terminal seeking access to the mobile IP network by way of the configured HA, the local AAA server coupled to the communicate with the configured HA and with the home AAA server; a provisioning server coupled to provide preferred HA addresses for a group of mobile terminals to the home AAA server; and wherein; the mobile terminal specifies the configured home agent when seeking access to the mobile IP network through an access point, the configured home agent address being stored within the mobile terminal; the home AAA server, responsive to having received the preferred HA addresses for the group of mobile terminals including the mobile terminal, sends an authentication response to the local AAA server, the authentication response including the preferred HA address for the mobile terminal; and the local AAA server, responsive to receiving the authentication response from the home AAA server, generates an authentication failure message to the mobile terminal, the authentication failure message including the preferred HA address. - View Dependent Claims (2, 3, 4, 5)
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6. An authentication, authorization and accounting (AAA) server for use in a mobile IP network, the AAA server comprising:
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a processor for executing computer instructions that define operational logic of the AAA server; a bus coupled to the processor for transmitting computer instructions and control signals to and from the processor within the AAA server; a network port for communicating with external devices coupled to the mobile IP network; memory coupled to the bus, the memory including the computer instructions that define operational logic for receiving and processing preferred HA addresses for a group of mobile terminals from an external provisioning server; the memory further including computer instructions that define logic for generating an authentication response including an address of the preferred HA to a local AAA server. - View Dependent Claims (7)
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8. A mobile terminal for communication through a mobile IP network, comprising:
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a processor for executing computer instructions that define operational logic of the mobile terminal; a bus coupled to the processor for transmitting computer instructions and control signals to and from the processor within the mobile terminal; memory coupled to the bus, the memory including the computer instructions that define operational logic for receiving and processing a preferred HA address for the mobile terminal; the memory further including computer instructions that define logic for regenerating an access request including the preferred HA address. - View Dependent Claims (9, 10)
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11. A method in an authentication, authorization, and accounting (AAA) server for dynamically redirecting home agents in a mobile IP network, comprising:
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receiving preferred home agent (HA) addresses for a group of mobile terminals; for the group of mobile terminals, storing the preferred home agent address in the mobile terminal subscriber profile; receiving a mobile terminal authentication request; retrieving the mobile terminal subscriber profile; and transmitting an authentication response including the mobile terminal subscriber profile. - View Dependent Claims (12, 13, 14)
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15. A method for dynamically redirecting mobile terminal home agent (HA) selection in an IP network, comprising;
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assigning a preferred HA to the terminal in accordance with prescribed criteria; updating a profile associated with the mobile terminal with the preferred HA; receiving a mobile terminal authentication request; accessing the updated profile; and redirecting the mobile terminal in accordance with the preferred HA assignment. - View Dependent Claims (16, 17, 18, 19)
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Specification