JP2012147072A - Computer device installed position detection method and local area network and computer device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To send a directive to a computer device having a specific IP address, etc. for visually or aurally notifying its physical position, and to detect a physical position of a computer device which uses an invalid IP address that is not rightfully assigned.SOLUTION: An administrator of a LAN 3 transmits a specific MAC frame addressed to an obtained MAC address (possibly an illegally assigned address) to the LAN 3 by using a computer device. The specific MAC frame is received by a computer device 1 (an illegally assigned computer device) having the MAC address, which is then notified to a BMC 12 by a LAN controller 11 of the computer device 1. The BMC 12 turns a device identification LED 13 on or rings a buzzer 14 to notify those around of an installed position of the computer device 1.

Description

  The present invention relates to a computer apparatus installation position detection method, a local area network, and a computer apparatus, and in particular, a physical installation position of a computer apparatus in which a specific specific IP address or the like is already assigned to the local area network. The present invention relates to an installation position detection method, a local area network, and a computer apparatus.

In recent years, LANs (local area networks) that connect a plurality of computer devices have become widespread.
In general, in a LAN, when a new computer device is connected to a network (that is, when a computer device is newly installed on the LAN), an IP address or the like assigned to the existing computer device is assigned to the computer device to be newly installed. Cannot be used. Therefore, when a new computer device is newly installed on the LAN, this point must be noted.
However, even if an IP address or the like is already assigned to an existing computer device, the assigned IP address or the like is illegally assigned to the existing computer device using an illegally obtained IP address or the like. It may be assigned.

  Therefore, in any of the above cases, when a computer device is newly installed on the LAN, other computer devices using the same IP address or the like are assigned to the IP address assigned to the computer device to be newly installed. If a computer device using the same IP address already exists on the LAN together with the necessity of verifying whether it already exists on the LAN, its installation position (physical installation position) The need to detect this has arisen.

  As a known technique in this field, for example, Patent Document 1 discloses providing a gaming system in which a game hall internal management device and an information collecting terminal can communicate without setting an address in the information collecting terminal device. . Specifically, in a gaming system comprising a plurality of gaming devices, a plurality of information collection terminal devices, and a game hall internal management device that aggregates game information collected by the plurality of information collection terminal devices, The apparatus broadcasts a command information packet including a broadcast address and a body number that causes the body part to execute processing in the header part of the command information packet that specifies processing of the information collecting terminal apparatus. When the packet is received, if the machine numbers match, the process specified by the command information packet is executed.

JP 2009-82553 A

  By the way, in the conventional LAN described in the background art, as described above, when a computer device is newly installed on the LAN, the same IP address or the like is used for the IP address assigned to the computer device to be newly installed. It is verified whether or not another computer device already existing on the LAN, and when a computer device using the same IP address already exists on the LAN, the existing computer device There was a need to detect the installation position (physical installation position).

However, conventionally, since such a detection means has not been provided, when a new computer device is newly installed on the LAN, double assignment of an IP address or the like occurs, and the new computer device cannot operate normally. There was a problem that a case might occur.
In addition, even if an IP address or the like assigned to a computer device to be newly installed is illegally obtained and already assigned illegally to an existing computer device, an existing one installed with such illegal assignment is used. There was a problem that there was no means for detecting the existence of a computer device and its physical installation position.
For example, in the case of the technique described in Patent Document 1, it is an object to provide a gaming system in which a game hall internal management device and an information collecting terminal can communicate without setting an address in the information collecting terminal device. As in the present invention, the physical installation position of the illegally connected computer apparatus is not detected.

  On the other hand, in the present invention, for example, in a LAN environment in which a network administrator assigns and manages a fixed IP address to each computer device, a computer device that uses an IP address that is not properly assigned is already present. When the computer is connected to the network, the physical installation position of the unauthorized computer device is sent to the IP address from the computer device for the LAN administrator by the unauthorized computer device itself. In response to the command, the administrator can be notified by turning on an LED (light emitting diode) installed corresponding to the user or by sounding a buzzer installed corresponding to the user. I have to.

  More specifically, the present invention specifies a physical installation position of a computer device already connected to the LAN using a specific specific IP address or the like, and specifies the specific specific IP address or the like. In particular, it is desirable to use a computer device (may be a computer device for an administrator) as a means for confirming the physical installation position of the computer device to be detected. Means for obtaining the MAC address of the computer device, and means for turning on the LED and / or sounding the buzzer provided in the computer device corresponding to the MAC address.

  The present invention has been made in view of the above-described conventional problems, and sends a command for visually or audibly informing the computer device having a specific IP address or the like of its physical location. To provide a computer device installation position detection method, a local area network, and a computer device that can detect the physical location of the computer device that uses an IP address that is not properly assigned. It is an object.

  In order to solve the above problems, a computer apparatus installation position detection method according to the present invention provides a specific command frame in a network based on a predetermined standard, at least one address complying with a protocol defined by the predetermined standard. A step of transmitting to the network as a destination; a step of receiving the command frame in a computer device to which the address is assigned; and a light emitting device and / or an audio output device included in the computer device triggered by the reception And a step of operating.

  In addition, the computer apparatus installation position detection method according to the present invention is a network based on a predetermined standard, wherein the specific command frame is addressed to at least one address complying with a protocol defined by the predetermined standard. , Receiving the command frame at the computer device to which the address is assigned, and activating an external light emitting device and / or audio output device connected to the computer device, triggered by the reception And a step of causing

  The local area network according to the present invention is a local area network based on a predetermined standard, and distributes a specific command frame to at least one address conforming to a protocol defined by the predetermined standard. Means for receiving the command frame in the computer device to which the address is assigned, and means for operating the light emitting device and / or the sound output device triggered by the reception. .

  Further, the computer device according to the present invention is a computer device connected to a network based on a predetermined standard, and is a specific command frame transmitted to itself with an address conforming to a protocol defined by the predetermined standard. And a means for operating a light emitting device and / or an audio output device included in the device, triggered by the reception.

  As described above, according to the computer apparatus installation position detection method of the present invention, for example, in a LAN environment in which a network administrator assigns and manages a fixed IP address to each computer apparatus, it is assigned properly. If it is suspected that a computer device using an illegal IP address that has not been assigned is already connected to the network, this IP address is transmitted by sending a specific command frame on the LAN with the IP address. Since the wave height device and / or the audio output device included in the computer device having the above can be operated, there is an effect of confirming the presence or absence of the illegally connected computer device, and there is a computer device that is illegally connected. Has the effect of detecting its physical position There.

It is a block diagram which shows the system structural example of LAN with which the installation position detection method of the computer apparatus which concerns on embodiment of this invention is applied. It is a block diagram which shows the specific structure of the computer apparatus 1 which concerns on embodiment of this invention.

The computer apparatus installation position detection method according to the present invention uses the specific specific IP address or the like to determine the physical installation position of the computer apparatus already connected to the LAN, the specific specific IP address or the like. It is possible to detect by specifying.
Embodiments of a computer apparatus installation position detection method, a local area network, and a computer apparatus according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a configuration diagram showing a system configuration example of a LAN to which a computer apparatus installation position detection method according to an embodiment of the present invention is applied.
In the figure, the LAN to which the computer apparatus installation position detection method of the present embodiment is applied includes a computer apparatus 1 (computer apparatus of the present embodiment) whose physical installation position is unknown and a computer apparatus that can be used by an administrator. 2 and a LAN 3 (local area network of the present embodiment) for connecting the computer apparatus 1 and the computer apparatus 2 to each other.
More specifically, the computer device 1 may be a gaming machine including a game machine or a general information processing terminal device.
The computer apparatus 2 that can be used by the administrator may have the same configuration as that of the computer apparatus 1 described later.
In FIG. 1, reference numeral 4 indicates a MAC frame (command frame).

In the present embodiment, in order to simplify the description, the computer device other than the computer device 2 that can be used by the administrator is only the computer device 1 whose physical installation position is unknown. As computer devices other than the computer device 2 that can be used by a person, a plurality of computer devices whose physical installation positions are unknown and a plurality of computer devices whose physical installation positions are known can be installed.
In this embodiment, the network connecting the computer devices is LAN3. However, in the present invention, generally, a certain protocol is defined for the network connecting the computer devices, and an address based on the protocol is set. Based on this, it is only necessary to be able to relay communications between the computer devices, and as long as the network is compliant with any other standard, it is also possible.

FIG. 2 is a configuration diagram showing a specific configuration of the computer apparatus 1 according to the embodiment of the present invention.
In the figure, a computer apparatus 1 according to an embodiment of the present invention includes a LAN controller 11, a BMC (Baseboard Management Controller) 12, an apparatus identification LED 13 (light emitting diode), and a buzzer 14.
In FIG. 2, reference numeral 131 indicates a lighting state of the device identification LED 13, and reference numeral 141 indicates a ringing state of the buzzer 14.
Hereinafter, an installation position detection method for a computer apparatus according to an embodiment of the present invention will be described with reference to FIGS.

In the present embodiment, it is assumed that a LAN controller, a BMC (Baseboard Management Controller), and a device identification LED and / or buzzer are provided in all the monitoring target devices connected to the LAN 3 (here, only the computer device 1).
The administrator of the LAN 3 obtains the MAC address of the computer device 1 (however, an address that may be illegally assigned) for which the physical location is to be detected by referring to the ARP table or network capture, for example. A specific MAC frame is transmitted on the LAN 3 using the computer device 2 with the obtained MAC address as a destination.
The specific MAC frame is received by the LAN controller 11 of the computer apparatus (here, the computer apparatus 1) that illegally has the MAC address on the LAN 3.

As a result, the LAN controller 11 of the computer apparatus 1 notifies the BMC 12 that the specific MAC frame has been received via the notification interface (not shown) connected to the BMC 12.
Accordingly, the BMC 12 turns on the device identification LED 13 included in the computer device 1 to be in the lighting state 131 and / or causes the buzzer 14 included in the computer device 1 to ring to be in the ringing state 141. Inform the surroundings where the computer 1 is installed.
Thereby, the administrator of the LAN 3 visually recognizes the lighting of the device identification LED 13 and / or listens to the sound of the buzzer 14 to detect the physical installation position of the computer device (here, the computer device 1). You can know the installation position.

The above-described installation position detection method can be realized by the BMC 12 incorporated in the computer apparatus 1 as described above. That is, even if the power supply of the computer apparatus 1 is in a standby state, the function of detecting the physical installation position of the computer apparatus 1 can be operated.
According to the installation position detection method of the computer device according to this embodiment, for example, a computer device (in this case, the computer device 1) using an unauthorized IP address that is not properly assigned by the administrator of the LAN 3 is already in the LAN 3. When connected, there is an effect that the physical position of the illegally connected computer device (here, the computer device 1) can be detected.

(Other embodiments)
In the configuration of the computer device 1 shown in FIG. 2, the physical identification position of the computer device 1 is notified to the administrator of the LAN 3 by turning on the device identification LED 13 and / or sounding the buzzer 14. did. However, in the present embodiment, the device identification LED 13 is omitted from the components of the computer device 1, and instead, the signal line for illuminating the device identification LED 13 is compatible with the computer device 1 of a centralized monitor (not shown). Connected to the device identification LED (assuming that the physical installation position of the computer device 1 is clearly indicated).
According to this embodiment, the administrator of the LAN 3 can be intensively notified of the physical installation position of the illegally connected computer device by the central monitoring monitor.

Further, the buzzer (14) is omitted from the components of the computer apparatus 1, and instead, a signal line for sounding the buzzer (14) is connected to the buzzer (computer apparatus 1) of the centralized monitoring monitor. It is also possible to connect to a physical installation position.
Also in this case, it is possible to centrally inform the administrator of the LAN 3 of the physical installation position of the illegally connected computer device by the central monitoring monitor.
Furthermore, it is possible to adopt a configuration in which the above-described device identification LED and buzzer are provided side by side.

According to the computer apparatus installation position detection method according to this embodiment, the administrator of the LAN 3 can collectively know the connection status of unauthorized computer apparatuses over the entire LAN 3 only by monitoring the centralized monitor. There is an effect.
In particular, if the above centralized monitoring monitor is arranged near the computer device for the administrator, it becomes easy to monitor the entire LAN 3. Specifically, the presence of an unauthorized computer device and its physical There is an effect that it is convenient for determining the installation position.

1 Computer device whose physical installation location is unknown 2 Computer device that can be used by the administrator 3 LAN
4 MAC frame 11 LAN controller 12 BMC (Baseboard Management Controller)
13 Device identification LED
14 Buzzer

Claims (8)

In a network based on a predetermined standard,
Sending a specific command frame to the network, addressed to at least one address compliant with a protocol defined by the predetermined standard;
Receiving the command frame at a computer device assigned the address;
Triggering the reception, operating a light emitting device and / or a sound output device provided in the computer device;
An installation position detection method for a computer apparatus, comprising:   2. The computer apparatus installation position detecting method according to claim 1, wherein the light emitting device is formed of a light emitting diode, and the sound output device is formed of a buzzer. In a network based on a predetermined standard,
Sending a specific command frame to the network, addressed to at least one address compliant with a protocol defined by the predetermined standard;
Receiving the command frame at a computer device assigned the address;
Triggering the reception to activate an external light emitting device and / or audio output device connected to the computer device;
An installation position detection method for a computer apparatus, comprising:   4. The computer apparatus installation position detecting method according to claim 3, wherein the light emitting device is formed of a light emitting diode, and the sound output device is formed of a buzzer. A local area network based on a predetermined standard,
Means for delivering a specific command frame with at least one address conforming to a protocol defined by the predetermined standard as a destination;
Means for receiving the command frame at a computer device to which the address is assigned;
Means for operating the light emitting device and / or the audio output device triggered by the reception;
A local area network characterized by comprising:   6. The local area network according to claim 5, wherein the light output device comprises a light emitting diode, and the audio output device comprises a buzzer. A computer device connected to a network based on a predetermined standard,
Means for receiving a specific command frame transmitted to itself with an address conforming to a protocol defined by the predetermined standard;
Means for activating the light emitting device and / or the audio output device provided by the device, triggered by the reception;
A computer apparatus comprising:   8. The computer apparatus according to claim 7, wherein the light emitting device is formed of a light emitting diode, and the sound output device is formed of a buzzer.

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