Mobile node, mobile agent and network system

H - Electricity – 04 – L

Patent

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Details

H04L 29/02 (2006.01) H04L 12/46 (2006.01) H04L 29/06 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2237370

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.

Un noeud mobile passe d'un premier réseau IP (Internet Protocol) à un deuxième réseau IP d'un système de réseaux, le premier réseau IP capable d'exécuter la communication conformément au premier et au deuxième genres d'IP étant connecté au deuxième réseau capable d'exécuter la communication conformément seulement au premier genre d'IP. Lorsque le noeud mobile communique avec d'autres noeuds sur le premier réseau après être passé au deuxième genre d'IP, une en-tête relative au passage, contenant à la fois l'adresse locale et l'adresse à distance du premier genre d'IP, est ajoutée à une en-tête contenant les adresses locale et à distance du deuxième genre d'IP. Le message auquel est ainsi ajoutée l'en-tête de passage sert à la communication entre un premier agent mobile sur le premier réseau et un deuxième agent mobile sur le deuxième réseau, ou entre le noeud mobile et le premier agent mobile.

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