Patent ID: 7856023
Filing Date: 2010-12-21
Classification: H04L

Abstract:
1. A gateway apparatus capable of connecting to an internal network and an external network, comprising: an information management unit for managing a global IP address of the gateway apparatus and identification information that is used to permit an external device connecting to the external network to connect to the internal network, wherein the information management unit transmits the global IP address and the identification information over the external network to an external apparatus; a remote service processor for generating a one-time password, wherein the information management unit, in response to a request received over the external network, transmits the one-time password generated by the remote service processor over the external network to the external apparatus; a connector unit for permitting the external device to connect to the internal network, when it receives a URI containing the global IP address and the transmitted one-time password from the external device to be permitted to connect over the external network; and an address converter unit for converting an IP address for the external network into an IP address for the internal network and converting an IP address for the internal network into an IP address for the external network, wherein the connector unit transmits a search message over the internal network to a plurality of internal devices configured to the internal network, then receives response messages from ones of the plurality of internal devices configured to form a virtual private network, and transmits information representative of a list of the internal devices, from which the gateway apparatus has received the response messages, to the external device having transmitted the URI.