System and method for packet transfer

PROBLEM TO BE SOLVED: To improve effective use of resources on a network, and also to improve operability, as to a system and a method for packet transfer. SOLUTION: The system and the method for packet transfer include: lower nodes (SGSN#a, SGSN#b) connected to terminals (MS#a, MS#b) through the network (wireless access network) 3; and higher nodes (GGSN#a, GGSN#b) connected to the lower nodes through a core network 2, and transfer packets between the terminals. Each higher node is provided with a tunnel setting means 12 for setting and designating a tunnel for transferring packets on the basis of destination addresses of the packets transferred from the terminals through the lower nodes, and each lower node is provided with a packet transfer means 12 for transferring the packets from the terminals to tunnels set according to setting indications from tunnel setting means 12 on the basis of the destination addresses of the packets from the terminals. COPYRIGHT: (C)2007,JPO&INPIT