Abstract: An apparatus stores address information of a server and transmits information of an apparatus to the server at a regular interval. The apparatus, when shifting from a normal state to a power-saving state, keeps continued regular transmission, by notifying a network interface device of the stored address information and the information of the apparatus.

Abstract: A communication apparatus stores a first address in association with a second address of an apparatus which is targeted to permit or restrict processing of a received packet. The communication apparatus detects first and second addresses of a transmission apparatus which is a source of a packet received through a network, and if the detected first address of the transmission apparatus is stored, then the processing of the received packet is permitted or restricted. If the detected first address of the transmission apparatus is not stored in association with the second address of the transmission apparatus and the detected second address is stored, then the communication apparatus updates the stored first address with the detected first address.

Abstract: Reception of data by an operating system via a network is monitored outside of the operating system. When reception of a packet to which the operating system of a data processing apparatus should respond is detected, transition to a power saving state is deferred.

Abstract: A communication apparatus, which has a normal power consumption mode and a power saving mode lower in power consumption than in the normal power consumption mode and which is connected to a network via a network interface device, communicates with a device on the network via the network interface device. The communication apparatus acquires capability information indicating a communication capability of the device, and based on acquired capability information, determines a communication mode to be used when the network interface device communicates with the device under a condition that the communication apparatus has shifted to the power saving mode, and when the communication apparatus shifts from the normal power consumption mode to the power saving mode, sets the determined communication mode as a communication mode to be used when the network interface device communicates with the external device.

Abstract: A communication apparatus which is capable of performing multicasting or broadcasting using a user-desired network interface. An MFP implementing the communication apparatus includes a plurality of network interfaces and performs multicasting or broadcasting via at least one of the network interfaces. A controller unit provides an application programming interface to an application that operates on the MFP. An operator of the MFP operates an operation unit to set a transmission condition for transmitting a multicast packet and a broadcast packet via a predetermined network interface. When a plurality of active network interfaces are detected, one of the plurality of detected active network interfaces which satisfies the set transmission condition is selected and multicasting or broadcasting is performed via the selected network interface.

Abstract: A control apparatus is provided between a first network and a second network different from the first network, in which a data processing apparatus is connected to the first network. The control apparatus notifies the data processing apparatus of a change of setting information that is set for network communications. Then, the control apparatus rewrites information involved in received data according to the changed setting information, when the data processing apparatus transmits data to be transmitted to a destination apparatus connected to the second network under a condition that the data processing apparatus is not yet operating based on the changed setting information.

Abstract: A network apparatus configured to perform data communication using an address includes a value input unit configured to input a value describing at least one part of the address, a first mark input unit configured to input a mark for separating a plurality of values describing the address in a plurality of parts, and a second mark input unit configured to continuously input a plurality of marks.

Abstract: A communication apparatus which is capable of performing multicasting or broadcasting using a user-desired network interface. An MFP implementing the communication apparatus includes a plurality of network interfaces and performs multicasting or broadcasting via at least one of the network interfaces. A controller unit provides an application programming interface to an application that operates on the MFP. An operator of the MFP operates an operation unit to set a transmission condition for transmitting a multicast packet and a broadcast packet via a predetermined network interface. When a plurality of active network interfaces are detected, one of the plurality of detected active network interfaces which satisfies the set transmission condition is selected and multicasting or broadcasting is performed via the selected network interface.

Abstract: An information processing apparatus which makes it possible to store encrypted data of packets in a decrypted state, and improve the efficiency of data analysis. A network interface receives encrypted data which has been encrypted, and data which has not been encrypted, from a network. A HDD stores received data. A IPSec module is operable when an item of the received is an item of the encrypted data, to decrypt the item of the encrypted data. A packet acquisition sub application searches the data stored in HDD for an item of the encrypted data corresponding to an decrypted item of data. The packet acquisition sub application updates the item of the received encrypted data based on the decrypted item of the data.

Abstract: A port monitor program to transmit data about a print job generated by a printer driver to an image forming apparatus includes reading the data about the print job that is generated by the printer driver and spooled by a spooler; determining whether an authentication process associated with restriction of printing is to be performed for the readout data about the print job; submitting an authentication request to an external server over a network to acquire functional restriction information used for the restriction of printing from the server if it is determined that the authentication process is to be performed; and determining how the print job is restricted on the basis of the functional restriction information acquired from the server.

Abstract: A network apparatus configured to perform data communication using an address includes a value input unit configured to input a value describing at least one part of the address, a first mark input unit configured to input a mark for separating a plurality of values describing the address in a plurality of parts, and a second mark input unit configured to continuously input a plurality of marks.

Abstract: Reception of data by an operating system via a network is monitored outside of the operating system. When reception of a packet to which the operating system of a data processing apparatus should respond is detected, transition to a power saving state is deferred.

Abstract: A network apparatus configured to perform data communication using an address includes a value input unit configured to input a value describing at least one part of the address, a first mark input unit configured to input a mark for separating a plurality of values describing the address in a plurality of parts, and a second mark input unit configured to continuously input a plurality of marks.

Abstract: A communication apparatus that is capable of communicating with network nodes more properly even when a control unit thereof shifts to a power-saving state. An NIC communicates with the network nodes via a network. The controller communicates with the network nodes via the communication unit. The controller stores node information on a network node that has transmitted data satisfying a predetermined condition, determines whether or not a shift condition for shifting the controller to a power-saving state is satisfied, and notifies the communication unit of the stored node information when it is determined that the shift condition is satisfied. The NIC stores node information notified by the controller, and executes communication processing based on the stored node information when the controller is in the power-saving state.

Abstract: A sufficient number of packets necessary for analysis of a fault in a network communication apparatus are obtained. A multi function peripheral (MFP) temporarily stores received packets as a file for every print job, and stores communication failure information as a log (communication failure log). The MFP deletes data in which no error has occurred in an application among the stored files. Then, in a case where an error has occurred during processing of a certain print job, the MFP stores received packets in a storage device, and compares a communication failure in the job packet in which the error has occurred with a communication failure in packets associated with all the received print jobs. As a result of the comparison, the MFP extracts a communication failure in only the job packet in which the error has occurred, and creates a log so that the extracted result can be identified.

Abstract: A communication apparatus, which has a normal power consumption mode and a power saving mode lower in power consumption than in the normal power consumption mode and which is connected to a network via a network interface device, communicates with a device on the network via the network interface device. The communication apparatus acquires capability information indicating a communication capability of the device, and based on acquired capability information, determines a communication mode to be used when the network interface device communicates with the device under a condition that the communication apparatus has shifted to the power saving mode, and when the communication apparatus shifts from the normal power consumption mode to the power saving mode, sets the determined communication mode as a communication mode to be used when the network interface device communicates with the external device.

Abstract: A communication apparatus, which has a normal power consumption mode and a power saving mode lower in power consumption than in the normal power consumption mode and which is connected to a network via a network interface device, communicates with a device on the network via the network interface device. The communication apparatus acquires capability information indicating a communication capability of the device, and based on acquired capability information, determines a communication mode to be used when the network interface device communicates with the device under a condition that the communication apparatus has shifted to the power saving mode, and when the communication apparatus shifts from the normal power consumption mode to the power saving mode, sets the determined communication mode as a communication mode to be used when the network interface device communicates with the external device.

Abstract: A communication apparatus having a plurality of network interfaces and capable of properly returning MIB information requested by an external apparatus, even when a network interface actually in communication with the external apparatus and a network interface designated by the external apparatus are different. If it is determined that a value of interface information contained in a MIB information retrieval request received by a communication unit from an external apparatus is a predetermined value and a first network interface has received the request, information corresponding to the first network interface is created from the MIB information and returned to the external apparatus. If it is determined that the value is the predetermined value and that a second network interface has received the request, information corresponding to the second network interface is created from the MIB information and returned to the external apparatus.

Abstract: A communication apparatus which is capable of performing multicasting or broadcasting using a user-desired network interface. An MFP implementing the communication apparatus includes a plurality of network interfaces and performs multicasting or broadcasting via at least one of the network interfaces. A controller unit provides an application programming interface to an application that operates on the MFP. An operator of the MFP operates an operation unit to set a transmission condition for transmitting a multicast packet and a broadcast packet via a predetermined network interface. When a plurality of active network interfaces are detected, one of the plurality of detected active network interfaces which satisfies the set transmission condition is selected and multicasting or broadcasting is performed via the selected network interface.

Abstract: An apparatus stores address information of a server and transmits information of an apparatus to the server at a regular interval. The apparatus, when shifting from a normal state to a power-saving state, keeps continued regular transmission, by notifying a network interface device of the stored address information and the information of the apparatus.