Patent ID: 7643447
Filing Date: 2010-01-05
Classification: H04L,H04W

Abstract:
1. In a network in which a first Internet Protocol (IP) network and a second IP network are mutually connected, the first IP network allowing communications compliant with a first kind of IP and a second kind of IP, and the second IP network allowing communications compliant with the first kind of IP, a method for controlling, by a mobile agent, a mobile node that can perform communications compliant with the second kind of IP with another mobile node belonging to the first IP network when the mobile node can perform communications compliant with the second kind of IP is moved from the first IP network to the second IP network, comprising: a step of encapsulating, by a first mobile agent belonging to the first IP network, a first kind of IP header to an IP packet compliant with the second kind of IP transmitted from said another mobile node to the mobile node moved from the first IP network to the second IP network, the first IP header setting, as a transmission destination address, an IP address compliant with the first kind of IP of a second mobile agent belonging to the second IP network, and setting, as a transmission source address, an IP address compliant with the first kind of IP of the first mobile agent; a step of transmitting, to the second mobile agent, the IP packet encapsulated with the first kind of IP header; and a step of decapsulating, by the second mobile agent, the first kind of IP header from the IP packet, and thereafter transmitting the IP packet to the mobile node.