| US 7,558,249 B2 | ||
| Communication terminal, and communication method | ||
| Moe Hamamoto, Osaka (Japan); Takeshi Kokado, Kyoto (Japan); and Manabu Yamamoto, Osaka (Japan) | ||
| Assigned to Panasonic Corporation, Osaka (Japan) | ||
| Appl. No. 11/666,894 PCT Filed Nov. 04, 2005, PCT No. PCT/JP2005/020304 § 371(c)(1), (2), (4) Date May 03, 2007, PCT Pub. No. WO2006/049251, PCT Pub. Date May 11, 2006. |
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| Claims priority of application No. 2004-323354 (JP), filed on Nov. 08, 2004. | ||
| Prior Publication US 2008/0112417 A1, May 15, 2008 | ||
| Int. Cl. H04L 12/28 (2006.01) | ||
| U.S. Cl. 370—351 [370/395.53; 370/395.54; 709/227; 709/245; 709/250] | 10 Claims |
| 10. A communication method performed by a communication terminal which is present on a private network connected to a global
network via a router and which performs a one-to-one interconnection with a communication terminal on another network via
the router, the communication method comprising:
examining a relay characteristic of the router by transmitting and receiving a predetermined message to and from a server
which is on the global network;
when the relay characteristic of the router is Port Reuse, determining address information, which contains at least a port
number of the communication terminal, which port number is to be used for the one-to-one interconnection with the communication
terminal on said another network, to be the address information about the router;
exchanging, with the communication terminal on said another network, the determined address information about the router;
and
performing the one-to-one interconnection with the communication terminal on said another network in accordance with the exchanged
address information.
|