| 摘要 |
PROBLEM TO BE SOLVED: To enable each radio terminal to perform logically separated communication, when a plurality of radio terminals are connected to a network via a radio base station.SOLUTION: When a plurality of radio terminals ND1, ND2 are connected via a radio base station AP to a network such as the Internet, each radio terminal is identified by use of a physical address such as a MAC address, for example, to thereby construct a logical tunnel between the radio terminal and a remotely existent server for each terminal. Also, in the server and a router, at the connection thereof to the individual tunnel, a different IP address and an IP address range are allocated, to thereby enable the different IP address and the IP address range to be paid out for each radio terminal. When a plurality of radio base stations exist, it is possible to control and properly use each logical network using a set of a terminal identifier and a base station identifier. |
