| US 7,512,126 B2 | ||
| Packet transfer scheme using mobile terminal and router for preventing attacks using global address | ||
| Atsushi Inoue, Kanagawa (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan) | ||
| Filed on Jul. 01, 2005, as Appl. No. 11/171,296. | ||
| Application 11/171296 is a continuation of application No. 09/951451, filed on Sep. 14, 2001, granted, now 6,925,087. | ||
| Claims priority of application No. 2000-280831 (JP), filed on Sep. 14, 2000. | ||
| Prior Publication US 2005/0237970 A1, Oct. 27, 2005 | ||
| Int. Cl. H04L 12/28 (2006.01) | ||
| U.S. Cl. 370—392 [370/401; 370/338; 370/466] | 11 Claims |
| 1. A method for operating a portable terminal having a TCP/IP module to communicate packets with a mobile communication network,
comprising:
receiving a router advertisement message from a neighboring router in the mobile communication network, the router advertisement
message containing a network prefix to be used for the mobile communication network;
generating a global address by combining the network prefix and a device ID which is assigned to the portable terminal;
transmitting a notify message to the router, the notify message containing the global address generated; setting up the TCP/IP
module to the global address for utilizing the global address in an application on the portable terminal;
transmitting a first message indicating a start of the application using the global address to the router, when a processing
of the application is started; and
transmitting a second message indicating an end of the application using the global address to the router, when the processing
of the application is ended.
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