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US 6,172,986 B2Granted
Mobile node, mobile agent and network system
AssigneeHitachi, Ltd.
InventorsTatsuya Watanuki, Tetsuo Oura, Sunao Sawada
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AssigneeHitachi, Ltd.
InventorsTatsuya Watanuki, Tetsuo Oura, Sunao Sawada
Estimating the term…
A mobile node moves from a first IP (Internet Protocol) network to a second IP network in a network system in which the first IP network capable of executing communication in accordance with both first and second kinds of IPs and the second IP network capable of executing communication in accordance with only the first kind of IP are connected with each other. When the mobile node communicates a message with other nodes on the first network after its movement accordance with the second kind of IP, a header for the movement containing both home and foreign addresses of the first kind in IP is added to a header containing home and foreign addresses in the second kind of IP, and put to the message, is added. The message to which the movement header is thus added is used for the communication between a first mobile agent on the first network and a second mobile agent on the second network, or between the mobile node and the first mobile agent.
A mobile node moving between IP (Internet Protocol) networks, comprising:
A mobile node moving between networks, comprising:
A mobile node moving between networks, comprising:
A mobile agent for assisting the movement of a mobile node executing communication by utilizing an IPv6 (Internet Protocol version 6), comprising:
A mobile agent for assisting the movement of a node executing communication by utilizing an IPv6 (Internet Protocol version 6), comprising:
A mobile agent for assisting the movement of a node executing communication by utilizing an IPv6 (Internet Protocol version 6), comprising:
A method of controlling a mobile node by a mobile agent in a network system in which a first IP (Internet Protocol) network capable of executing communication in accordance with first and second kinds of IPs and a second IP network capable of executing communication in accordance with only said first kind of IP are connected with each other, so that said mobile node capable of executing communication in accordance with said second kind of IP can communicate with other nodes belonging to said first IP network in accordance with said second kind of IP when said mobile node moves from said first IP network to said second IP network, comprising the steps of:
A method of controlling a mobile node by a mobile agent in a network system in which a first IP (Internet Protocol) network capable of executing communication in accordance with first and second kinds of IPs and a second IP network capable of executing communication in accordance with only said first kind of IP, so that said mobile node capable of executing communication in accordance with said second kind of IP can communicate with other nodes belonging to said first IP network in accordance with said second kind of IP when said mobile node moves from said first IP network to said second IP network, comprising the steps of:
A method of controlling a mobile node by a mobile agent in a network system in which a first IP (Internet Protocol) network capable of executing communication in accordance with first and second kinds of IPs and a second IP network capable of executing communication in accordance with only said first kind of IP are connected with each other, so that said mobile node capable of executing communication in accordance with said second kind of IP can communicate with other nodes belonging to said first IP network in accordance with said second kind of IP when said mobile node moves from said first IP network to said second IP network, comprising the steps of:
A method of controlling a mobile node by a mobile agent in a network system in which a first IP (Internet Protocol) network capable of executing communication in accordance with first and second kinds of IPs and a second IP network capable of executing communication in accordance with only said first kind of IP, so that said mobile node capable of executing communication in accordance with said second kind of IP can communicate with other nodes belonging to said first IP network in accordance with said second kind of IP when said mobile node moves from said first IP network to said second IP network, comprising the steps of:
A network system for controlling a mobile node and assisting the movement of said mobile node by a mobile agent, in which a first IP (Internet Protocol) network capable of executing communication in accordance with first and second kinds of IPs and a second IP network capable of executing communication in accordance with only said first kind of IP are connected with each other, so that said mobile node capable of executing communication in accordance with said second kind of IP can communicate with other nodes belonging to said first IP network in accordance with said second kind of IP when said mobile node moves from said first IP network to said second IP network, comprising:
A network system for controlling a mobile node and assisting the movement of said mobile node by a mobile agent, in which a first IP (Internet Protocol) network capable of executing communication in accordance with first and second kinds of IPs and a second IP network capable of executing communication in accordance with only said first kind of IP are connected with each other, so that said mobile node capable of executing communication in accordance with said second kind of IP can communicate with other nodes belonging to said first IP network in accordance with said second kind of IP when said mobile node moves from said first IP network to said second IP network, comprising:
A network system for controlling a mobile node and assisting the movement of said mobile node by a mobile agent, in which a first IP (Internet Protocol) network capable of executing communication in accordance with first and second kinds of IPs and a second IP network capable of executing communication in accordance with only said first kind of IP are connected with each other, so that said mobile node capable of executing communication in accordance with said second kind of IP can communicate with another node belonging to said first IP network in accordance with said second kind of IP when said mobile node moves from said first IP network to said second IP network, comprising:
A network system for controlling a mobile node and assisting the movement of said mobile node by a mobile agent, in which a first IP (Internet Protocol) network capable of executing communication in accordance with first and second kinds of IPs and a second IP network capable of executing communication in accordance with only said first kind of IP are connected with each other, so that said mobile node capable of executing communication in accordance with said second kind of IP can communicate with other nodes belonging to said first IP network when said mobile node moves from said first IP network to said second IP network, comprising:
A mobile agent for controlling a mobile node in a network system in which a first IP (Internet Protocol) network capable of executing communication in accordance with first and second IPs and a second IP network capable of executing communication in accordance with only said first kind of IP are connected with each other, so that a mobile node capable of executing communication in accordance with said second kind of IP can execute communication with another node belonging to said first IP network in accordance with said second kind of IP when said mobile node moves from said first IP network to said second IP network, comprising:
A mobile agent for controlling a mobile node in a network system in which a first IP (Internet Protocol) network capable of executing communication in accordance with first and second kinds of IPs and a second IP network capable of executing communication in accordance with only said first kind of IP are connected with each other, so that a mobile node capable of executing communication in accordance with said second kind of IP can communicate with other nodes belonging to said first IP network in accordance with said second kind of IP when said mobile node moves from said first IP network to said second IP network, comprising:
A mobile agent for controlling a mobile node in a network system in which a first IP (Internet Protocol) network capable of executing communication in accordance with first and second kinds of IPs and a second IP network capable of executing communication in accordance with only said first kind of IP are connected with each other, so that a mobile agent capable of executing communication in accordance with said second kind of IP can execute communication with other nodes belonging to said first IP network in accordance with said second kind of IP when said mobile node moves from said first IP network to said second IP network, comprising:
A mobile agent for controlling a mobile node in a network system in which a first IP (Internet Protocol) network capable of executing communication in accordance with first and second kinds of IPs and a second IP network capable of executing communication in accordance with only said first kind of IP are connected with each other, so that a mobile node capable of executing communication in accordance with said second kind of IP can execute communication with other nodes belonging to said first IP network in accordance with said second kind of IP when said mobile node moves from said first IP network to said second IP network, wherein:
Dependencies are inferred from the claim text.