JP3125887B2 - Remote access method and communication device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a remote control for a communication device.
And a communication device .

[0002]

2. Description of the Related Art In recent years, systems for digitizing postal mail (mail) have become widespread for the purpose of saving office expenses and realizing information immediately.

In particular, in a communication system in which each terminal performs message transfer via a center device having a store-and-forward function, a variety of mail services such as immediate delivery, broadcast, timed delivery, confidential, mailbox, and electronic bulletin board are provided. Provided.

On the other hand, in the communication device, since operations such as user registration and system failure handling occur, the communication device monitor must be in a state where the communication device can always be monitored.

[0005] The original of this background, in recent years, remote access technology is developed, modem, packet assembly /
Using a disassembly function (hereinafter referred to as "PAD") device or the like, it has become possible to monitor a communication device by remote operation using a general public line.

[0006]

However, when the communication apparatus is monitored by remote access according to the above-mentioned conventional example, there are the following disadvantages. (1) When a communication device is monitored by remote access, the communication device must be provided with a facility dedicated to remote access. (2) In order to reduce the above facilities, if an attempt is made to use the communication control unit of the communication device for both providing a service to a user and monitoring the system by remote access, an incoming call to this communication device is received. However, it cannot distinguish between an incoming call for a service request from a user and an incoming call for remote access from a system monitor. In addition, since the entrance of the remote access is also directed to the general user, there is a possibility that the remote access is unlimited or unjust. (3) In order to distinguish incoming calls, a procedure dedicated to remote access must be taken, and dedicated equipment must be provided for the remote access terminal.

The present invention has been made in view of the above circumstances, and has as its object the purpose of remote access only.
Other communication devices via communication devices without providing
Remote access to the communication device itself
Remote access that can accept remote access
And a communication device .

[0008]

To achieve the above object, according to the solution to ## addressed the present invention provides a remote access method for a communication device, said communication device is included in the received data
Destination address and the address given to the communication device
Remote access to the communication device based on
Communication to communicate or access other communication devices.
Discriminating step of discriminating whether to perform communication, and discriminating in the discriminating step.
Remote access to the communication device according to the result.
Processing, or address conversion of the destination address.
In other words, the processing for communicating with the other communication device is executed.
And a control step of performing control . Further, in the above remote access method,
Whether to allow remote access to the communication device
A setting step of setting a remote control for the communication device.
The process for accessing the port is set by the setting step.
Remote to the communication device based on the specified content
A process that determines whether to permit access
Is preferred. In addition, the above remote access method
Outgoing call for remote access to the communication device
A registration step of registering the original address, and receiving by the communication device
To obtain the source address contained in the
Acquiring step, and remotely accessing the communication device.
The process for performing the access is obtained by the obtaining step.
Originating address and the originating address registered in the registration process
Remote to the communication device based on the source address
A process that determines whether to permit access
Is preferred.

[0009] The present invention provides a communication device capable of remote access.
Storage means for storing its own address
And the destination address included in the data received from outside
Based on the own address stored in the storage means.
Communication for remote access or other communication
To determine whether to perform communication to access the communication device.
Separate means and the reloading means according to the result of the discrimination by the discriminating means.
Processing for remote access or the destination address
To perform address communication and communicate with the other communication device.
And control means for controlling to execute processing for
It is characterized by that. In the communication device,
To set whether to allow remote access
Processing means for performing the remote access,
The processing is based on the contents set by the setting means.
In the process of determining whether to allow remote access
Preferably, there is. In the communication device,
Register the source address of the remote access device.
Registration means for recording, and
Obtaining means for obtaining the source address of the
The processing for performing the mote access is performed by the acquisition unit.
And the source address obtained in the registration means.
Allow said remote access based on source address
It is preferable that the processing is to determine whether or not to perform the processing.

[0010]

[0011]

According to the present invention, data included in the data received by the communication device is included.
Destination address and the address assigned to the communication device
And for remote access to communication devices based on
To communicate or access other communication devices
Is determined, and the communication device is responded to according to the determination result.
Process for remote access, or
Translates addresses to communicate with other communication devices
Execute the process for This allows remote access
Other communication via communication devices can be performed without providing dedicated equipment.
To access the communication device itself,
It is possible to perform remote access. Also outgoing
Side provides remote access to the communication device.
You do not need to perform any special processing, just the destination address
Communication device by performing a simple operation of specifying
Remote access to the device.

[0012]

[0013]

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a configuration diagram of a communication system having an address translation device as a communication device to which an embodiment of the present invention is applied. In the figure, reference numerals 1a and 1b denote public network 3 which will be described later.
Is a personal computer terminal that can access an address translation device 4 described later through a remote operation. 2
Is a communication terminal that can request an address translation service to the address translation device 4 via the public line network 3. Reference numeral 3 denotes an address translation device 4, personal computer terminals 1a to 1b, and a communication terminal 2.
And a public line network for connecting to a digital data network, a dedicated line, a telephone line network, and the like. Reference numeral 4 denotes an address translator for translating an incoming address and transmitting the address.

In the address translator 4, reference numeral 41 denotes a communication control unit for controlling connection with the public network 3, reference numeral 42 denotes a PAD control unit for disassembling and assembling data received from the personal computer terminals 1a and 1b, and reference numeral 43 denotes an address. A main control unit for controlling the entire conversion device 4, a main storage unit 44 for storing a program to be processed by the main control unit 43, and a data register 45 for determining whether to permit remote access are registered. A remote access permission storage unit, 46 is a device address storage unit for registering the address of the address conversion device 4 itself, 47 is an address conversion table for performing address conversion, and 48 is an address of a user who is permitted remote access. Is a system setting unit for registering the address translation device 4, and 4B is an address table. An internal bus of the converter 4. Reference numeral 5 denotes an input unit for performing system settings, a local terminal,
Such as a keyboard.

Prior to starting the operation of the system shown in FIG. 1, first, an address table 48 of a user who permits remote access from the input unit 5, an address storage unit 46 of the address translation unit 4 itself, and an address translation table 47. Register the address that is adapted to each.

FIG. 2 is a flowchart relating to data transmission according to an embodiment of the present invention. First, step S2
When the communication is started in step 1, the process proceeds to step S22, where the terminal transmits the address to the public network address of the address translation device 4, and proceeds to step S23 to connect to the address translation device 4. Next, the process proceeds to step S24, and if it is possible to add the source address, and if it is set to add it in step S25, the process proceeds to step S26a to send the destination address and the source address. Otherwise, the process proceeds to step S26b, where only the destination address is sent. In S27, the PAD identifier is transmitted together with the address. The format of this transmission is shown in FIG. Up to this point, the source terminal and the address translation device 4
Can be performed in exactly the same procedure for both data communication and remote access.

FIG. 4 is a flowchart for data reception according to one embodiment of the present invention. First, step S3
When an incoming call is received at step 1, the PAD control unit 42 proceeds to step S32.
Determines whether there is a PAD identifier, and if there is a PAD identifier, the process proceeds to step S33 to check whether the own device address is registered in the storage unit 46 in which the address of the address translation device 4 itself is registered. . If the own device address is registered, the process proceeds to step S34, where the destination address and the own device address are collated. If they match, the process proceeds to step 41 in FIG. If it is determined in step S32 that there is no PAD identifier, if it is determined in step S33 that the address of the address translation device 4 itself is not registered, or if it is determined in step S35 that the addresses do not match, the process proceeds to step S36. Then, the address is converted according to the address conversion table 47, and the flow proceeds to step S37 to perform normal communication.

It should be noted that, if a match is obtained in step S35 in FIG.

FIG. 5 is a flowchart relating to data reception according to an embodiment of the present invention.
35 shows the processing when the addresses match. First, in step S41, it is checked whether or not the transmission address includes the transmission source address as shown in FIG. 3. If it does, the process proceeds to step S42, where the remote access permitted user address table 48 is compared with the transmission source address. Only when the permitted user address matches the transmission source address in step S43, the process proceeds to step S44 to receive the remote access. If the source address is not included in step S41, or if the addresses do not match in step S43, the process proceeds to step S45.
Disconnect communication.

As shown in FIG. 6, steps S41 to S43 in FIG. 5 are simplified, and only whether or not remote access is permitted is determined by reading data from the remote access permission storage unit 45. (Step S46).

In the above embodiment, communication with an address exchange device has been described. However, the present invention can be similarly applied to communication with a protocol conversion device, a storage exchange device, and the like, and the same effects can be obtained. Regarding also access method, in the above embodiment was used PAD for packet switching network, a modem for a telephone line, it is likewise possible to use other commercially available remote access device.

[0024]

As described above , according to the present invention,
Communication equipment can be used without dedicated equipment for remote access.
Communication with other communication devices via the
Provides remote access to the device itself
You. Also, on the transmitting side, remote
There is no need to perform special processing when accessing
A simple operation of specifying a destination address for
Remote access to communication devices by
Is possible.

[0025]

[0026]

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a communication system having an address translation device to which an embodiment according to the present invention is applied;

FIG. 2 is a flowchart regarding data transmission according to an embodiment of the present invention.

FIG. 3 is a format diagram of outgoing data in the embodiment according to the present invention.

FIG. 4 is a flowchart relating to data reception of the embodiment according to the present invention.

FIG. 5 is a flowchart relating to data reception according to an embodiment of the present invention.

FIG. 6 is a flowchart relating to data reception according to the embodiment of the present invention.

[Explanation of symbols]

 1a, 1b Remote access terminal 2 Communication terminal 3 Public line network 4 Address converter 5 Input unit 41 Communication control unit 42 PAD control unit 43 Main control unit 44 Main storage unit 45 Remote access permission storage unit 46 Device address storage unit 47 Address Conversion table 48 Remote access permitted user address table 49 System setting section 4B Internal bus

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04L 12/54 H04L 12/58 H04L 29/06 H04Q 3/58 106

Claims (6)

(57) [Claims] 1. A remote access method for a communication apparatus, a destination address which the communication device is included in the received data
And the address given to the communication device
Communication for remote access to the communication device
Whether to perform communication to access other communication devices
Discriminating the communication device according to the discrimination result of the discriminating step
Remote access processing or the destination
Address and translate communication with the other communication device.
And a control step of performing control so as to execute processing to be performed . 2. Remote access to said communication device.
A setting step of setting whether or not to permit access to the communication device , and a process for performing remote access to the communication device.
The processing is based on the contents set in the setting step.
Whether to allow remote access to the communication device
2. The process according to claim 1, wherein the determining is performed.
Remote access method. 3. A remote access to said communication device.
A registration step of registering a source address for performing the communication, and a source address included in the data received by the communication device.
And a process for performing remote access to the communication device.
The process is based on the source address obtained in the obtaining step.
Based on the source address registered in the registration step
To permit remote access to the communication device.
Claims that is a process of determining whether or not
2. The remote access method according to 1. 4. A communication device capable of remote access.
Te, wherein a storage means for storing its own address, the destination address included in the data received from the outside
Based on the self address stored in the storage means
The communication for the remote access is performed or another communication device is used.
For determining whether to perform communication to access the device
And the remote access according to the determination result by the determination means.
Process or the destination address.
Processing for performing communication with the other communication device by converting
And control means for controlling to execute
Communication device. 5. Whether or not to permit said remote access
Setting means for setting the password, and the processing for performing the remote access is performed by the setting means.
The remote access based on the contents set by the step.
Process to determine whether or not to allow
The communication device according to claim 4, wherein 6. An apparatus for performing a remote access,
Registering means for registering a source address; and obtaining a source address included in the received data.
Acquiring means for performing remote access, wherein
The source address obtained by the step and registered in the registration means
Said remote access based on the source address provided
Is a process of determining whether or not to permit
The communication device according to claim 4, wherein