Abstract: An information processing apparatus that provides a proxy for a service that a service providing apparatus provides to a control apparatus, the information processing apparatus includes: a first communications unit adapted to connect to a first communications path; a second communications unit adapted to connect to a second communications path; a first determination unit adapted to determine whether or not the providing apparatus exists via the first communications unit; a second determination unit adapted to determine whether or not the providing apparatus exists via the second communications unit; a connection unit adapted to connect to the providing apparatus via the second communications unit; and a proxy unit adapted to connect to the control apparatus via the first communications unit, and provide a proxy for a service between the providing apparatus and the control apparatus.

Abstract: When a communication apparatus transmits data to another communication apparatus, a network connected to the communication apparatus and a network connected to the other communication apparatus are searched for. It is determined, in accordance with a communication channel decided based on the search result, whether to execute encryption of the data to be transmitted. If it is determined to execute the encryption, the data is transmitted after encrypting at least part of it.

Abstract: A connection apparatus that is connected to a first network obtains function information from an apparatus that exists in the first network, and limits signal transfer between the first network and a second network in accordance with destination information included in the obtained function information.

Abstract: A relay apparatus connected to a first network and configured to construct a connection between the first network and another network so that a communication packet can be transmitted between the first network and the another network includes a relay unit configured to relay communication data received from a communication apparatus on the first network to a communication apparatus on the another network via the connection, an acquisition unit configured to acquire information corresponding to a data length of a communication packet that can be transmitted via the connection without being divided according to a change of connection status of the another network, and a notification unit configured to notify the information acquired by the acquisition unit to the communication apparatus on the first network.

Abstract: A negotiation unit, of a logical network control apparatus connected to a LAN, judges settings of processing to be performed on communication data by a network connection apparatus, from properties of an application to be used in communication, and decides parameters to be used for a VPN connection. The VPN connection is performed using the determined parameters.

Abstract: A notification apparatus includes a notification unit configured to notify a connected network of routing information, and a restriction unit configured to restrict notification of the routing information when a connected network is not a registered network.

Abstract: A service publication restriction apparatus includes a connection unit configured to connect the service publication restriction apparatus to a network and a restriction unit configured to restrict a publication of a service by a publication unit if the connected network is not a registered network.

Abstract: A receiving apparatus holds identification information used by a transferring device on a transmission medium to identify transmission data to be transferred to the receiving apparatus. The receiving apparatus outputs the received identification information to be inputted to a transmitting apparatus via a medium different from the transmission medium. The receiving apparatus receives data which is transferred by the transferring device after transmitted from the transmitting apparatus that has inputted the identification information.

Abstract: A security protocol control apparatus includes a communication unit configured to perform a communication with a communication partner via a network, and a setting information generation unit configured to, based on setting information for a first security protocol previously established, generate, within the security protocol control apparatus, setting information for a second security protocol that has not yet been established.