Server apparatus, client apparatus and network system

Abstract

The network system comprises an original device description indicating a control point so as to register an address used for MAC address authentication. The server side (1) acquires information from the device(s) (2) connected to the network, and only the device(s) having the above mentioned description are listed and displayed. By responding to the access from the non-registered device in a predetermined manner, the device (2) is prompted to be registered, said device corresponding with the device description, but not registered.

Description

Server equipment, client equipment and network system Technical field The present invention relates to a server device, a client device, and a network system that can easily protect access to content. Background technique In order to be able to detect and control devices connected to the network, a protocol called Universal Plug and Play (UPnP) is standardized (for example, refer to the non-patent document, "UniversalPlugandPlayDeviceArchitectureVersion1.0", [Online], July 8, 2000 Day, UPnP Forum, [search date: March 25, 2000], Internet URL: http: / / www.upnp.org / download / UPnPDA10_20000613.htm). UPnP uses standard Transmission Control Protocol / Internet Protocol (TCP / IP) and Internet Protocol, and implements the following functions, such as obtaining information about the existence and functions of other devices, and notifying one's own functions. Therefore, it is possible to easily install, set, and add peripheral devices. The basic components of a UPnP network are devices, se...

AI Technical Summary

Problems solved by technology

On the other hand, there is no need for the client device side to be discovered by the server device in normal use, and there is no response to advertisement and search definitions as described above

Therefore, there is a problem that the client device (control point existing on the network) that can be accessed cannot be confirmed on the server device side.

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