| 摘要 |
<p>Provided is a relay device that makes it easy to communicate using a VPN between communication terminals connected to different relay devices. The provided relay device references a routing database that is distributedly managed using a structured overlay, recognizes as transmission routes other relay devices corresponding to addressee information in packets transmitted by connected communication terminals, and transmits said packets along said transmission routes, thereby allowing reception by a communication terminal connected to the destination relay device. Since the routing database is distributedly managed, even if a new relay device joins the network or a relay device leaves the network, settings for other relay devices do not have to be changed in advance. Also, communication devices connected to the provided relay device can communicate by just connecting to the relay device and do not need special software for using the structured overlay.</p> |
