Relay device and server, and port forward setting method

The present invention has an object to provide a relay device capable of performing dynamic port forward setting to open a port even if performing a connection in two stages and being connected to a network and a port forward setting method, and relates to a router for relaying a data packet which h...

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Bibliographic Details
Main Authors KONISHI HIROSHI, YOKOMITSU YASUSHI, HIRAHARA KAZUO
Format Patent
LanguageEnglish
Published 15.12.2009
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Summary:The present invention has an object to provide a relay device capable of performing dynamic port forward setting to open a port even if performing a connection in two stages and being connected to a network and a port forward setting method, and relates to a router for relaying a data packet which has such a structure as to comprise a control portion for giving a port forward setting request to an upper router 2 to perform the port forward setting of the upper router 2 and to relate port forward setting for a CP4 to port forward setting of a router upon receipt of the port forward setting request from the CP4 when a WAN side I/F portion is connected to an internet 1 through the upper router 2 and a LAN side I/F portion is connected to the CP4.
Bibliography:Application Number: US20040883962