System and method for routing and domain name system support of a mobile node
First Claim
Patent Images
1. A method for establishing internet protocol communication between a visiting mobile node and a node in one or more mobile networks having a plurality of nodes, the visiting mobile node having a home address, the method comprising:
- receiving, by a mobile router in a first mobile network of the one or more networks, a request from the visiting mobile node when the visiting mobile node joins the first mobile network, the request indicating the home address of the visiting mobile node;
determining whether the first mobile network, which is connected to the Internet or autonomous at different times, is presently Internet-connected or is autonomous, wherein the mobile network is disconnected from an Internet Protocol (IP) infrastructure when autonomous;
deciding whether to alter the manner of addressing communications to and from the visiting mobile node based on the determination;
creating routing information indicating the home address of the visiting mobile node; and
announcing the home address to the plurality of nodes of the one or more mobile networks.
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Abstract
System and method are provided for establishing internet protocol (IP) communication between a mobile node (MN) and one or more mobile networks. The method includes receiving (100) a request from a MN when the MN joins a first mobile network, creating (105) routing information indicating a home address of the MN, and announcing (110) the home address to the nodes of the mobile network(s). The request indicates the home address of the MN.
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Citations
24 Claims
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1. A method for establishing internet protocol communication between a visiting mobile node and a node in one or more mobile networks having a plurality of nodes, the visiting mobile node having a home address, the method comprising:
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receiving, by a mobile router in a first mobile network of the one or more networks, a request from the visiting mobile node when the visiting mobile node joins the first mobile network, the request indicating the home address of the visiting mobile node; determining whether the first mobile network, which is connected to the Internet or autonomous at different times, is presently Internet-connected or is autonomous, wherein the mobile network is disconnected from an Internet Protocol (IP) infrastructure when autonomous; deciding whether to alter the manner of addressing communications to and from the visiting mobile node based on the determination; creating routing information indicating the home address of the visiting mobile node; and announcing the home address to the plurality of nodes of the one or more mobile networks. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for establishing an internet protocol communication for a mobile node in a foreign domain, the mobile node having a home address, the method comprising:
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receiving a request, by a first router in the foreign domain, from the mobile node when the mobile node enters the foreign domain, the request indicating the home address of the mobile node; determining whether the foreign domain is Internet-connected or is autonomous wherein the foreign domain is disconnected from an Internet Protocol (IP) infrastructure when autonomous; deciding whether to alter the manner of addressing the mobile node based on the determination; selecting a temporary address for the mobile node in response to the request; and creating a first notification indicating the home address of the mobile node and the temporary address of the mobile node. - View Dependent Claims (17, 18, 19, 20)
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21. A method for establishing an internet protocol communication for a mobile node in one or more mobile networks, the one or more mobile networks comprising a mobile router, the mobile node having a home address, the mobile router having a home agent, the method comprising:
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receiving, by the mobile router, a request when the mobile node leaves a first mobile network of the one or more mobile networks, the request indicating a departure of the mobile node; determining whether the one or more mobile networks is Internet-connected or is autonomous, wherein the one or more mobile networks is disconnected from an Internet Protocol (IP) infrastructure when autonomous; deciding how addressing is to be handled based on the determination, the addressing when the one or more mobile networks is Internet-connected selected to be the same as or different than when the one or more mobile networks is autonomous; intercepting a communication packet for the mobile node in response to the request; and directing the communication packet for the mobile node to the home agent of the mobile router if the one or more mobile networks is Internet-connected.
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22. A system for routing communication between a mobile node and one or more nodes of a network, the mobile node having a home address, the system comprising:
a router configured to; determine whether a connection exists to the Internet or the router is autonomous, wherein the router is disconnected from an Internet Protocol (IP) infrastructure when autonomous; decide how addressing is to be handled based on the determination, the addressing when the router is Internet-connected selected to be the same as or different than when the router is autonomous; receive a request for a temporary address from the mobile node, said request comprising the home address of the mobile node; create routing information indicating the home address of the mobile node; and announce the home address of the mobile node to the one or more nodes of the network. - View Dependent Claims (23, 24)
Specification