PACKET REPEATING METHOD AND END SYSTEM IN COMMUNICATION NETWORK

摘要

PROBLEM TO BE SOLVED: To efficiently transfer a packet that has high security by obtaining address information of the communication network through a default route to set a direct path between with an end system of a communication network. SOLUTION: When a terminal A (1a) decides that its packet flow is suitable to be transferred through a path that short-circuits a default route in sending the packet, it sends a direct path setting request message including address information on a communication network of its own device to a terminal B (1b) that is the destination of the packet flow through the default route. The direct path request message is transferred to the terminal B (1b) sequentially via routers C (1c) and D (1d) through the default route. When the terminal B (1b) decides that its own device is an exit system, it sets a direct path between with an entry system by using an address on a communication network of the entry system (terminal A) that is set in the direct pass setting request message.