JP2019186878A - Wireless LAN access point device - Google Patents

Abstract

To provide a method for a wireless LAN access point device, which includes a plurality of SSID, capable of restricting an SSID to which automatic radio setting is applicable, preventing accessing a LAN node from a wireless LAN station device of a visitor, and selecting an appropriate radio frequency band under a radio wave environment which depends on a place etc.SOLUTION: The wireless LAN access point device is configured to enable automatic radio setting to at least one SSID out of a plurality of SSID of the wireless LAN access point device 1. Further, the wireless LAN access point device imposes restrictions to a wireless LAN station device 15 which connects the SSID in which the automatic radio setting is performed, such as being accessible to a WAN 8 only, or limiting an available frequency band, to manage the wireless LAN station device 15 which is connected with the automatic radio setting.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wireless local area network (LAN) access point device having a plurality of SSIDs (Service Set Identifiers) and capable of performing automatic wireless setting for at least one of the plurality of SSIDs.

  Patent Document 1 discloses that a wireless LAN access point apparatus has a plurality of SSIDs, and each of the SSIDs has different characteristics, for example, an SSID that emphasizes communication speed, and an SSID that emphasizes communication stability. .

  Patent Document 1 discloses that automatic wireless setting can be performed for the two SSIDs as described above. In the automatic wireless setting, the wireless LAN station device can set communication between the wireless LAN device access point and the wireless LAN station device with a simple operation without selecting an SSID or inputting a password.

As one of such automatic wireless setting procedures, for example, WPS (Wi-Fi Protected Setup) defined by the Wi-Fi (registered trademark) Alliance is known. Of the WPSs, a push button configuration is often used. In the push button method, a wireless LAN connection can be established without inputting a password by simultaneously pressing a push button between the wireless LAN access point device and the wireless LAN station device. In addition to WPS, there are several manufacturers' unique methods for automatic wireless setting.

  In the wireless LAN access point device of Patent Document 1, WPS is set with one of two SSIDs, and a MAC (Media Access Control) address, Vender Option, etc. included in a Probe Request received from a wireless slave unit From this information, it is determined whether the connected SSID is suitable for the wireless slave unit. If this determination is YES, the wireless slave unit communicates with the wireless access point using the SSID. If the connected SSID is not suitable for the wireless slave device from the information such as the MAC address and the Vender Option, the wireless access point is guided to establish a wireless connection with the other SSID.

JP 2013-131993 A

  For example, it is assumed that a visitor visiting a business office using a wireless LAN is connected to the Internet using a wireless LAN station device such as a personal computer (PC), tablet, or smartphone owned by the visitor. Using the automatic wireless settings described above, connecting a customer's wireless LAN station device to an in-house LAN can be used not only for the Internet but also for nodes such as servers, PCs, and NAS (Network Attached Storage) connected to the LAN in the office. Can also be accessed, which is not preferable.

In addition, when 2.4 GHz band SSID and 5 GHz band SSID are separated, if a customer's terminal is connected to a 5 GHz band SSID in a place where radio waves in the office are difficult to reach, wireless communication becomes unstable. There is a problem that becomes. In the 5 GHz band, there are channels that cannot be used outdoors depending on the frequency (channel). In addition, there is a restriction that when the radar is detected, it must move to another channel (DFS: Dynamic Frequency Selection).

  The present invention has been made in view of the above, and limits the SSID to which automatic wireless setting can be applied, prevents access by a wireless LAN station device of a visitor to a LAN node, and is suitable for a radio frequency environment that depends on a location or the like. An object of the present invention is to provide a wireless LAN access point device that can select a band.

  A wireless LAN access point device according to a first aspect of the present invention is a wireless LAN access point device including a wireless LAN module having a plurality of SSIDs and an operation unit, wherein the wireless LAN module is connected to the operation unit from the operation unit. An automatic wireless setting is executed based on the instruction, and the automatic wireless setting is executed for at least one of the plurality of SSIDs. The wireless LAN access point apparatus has a plurality (N: N is a natural number) of SSIDs, and automatic wireless setting can be performed for a number n (1 ≦ n <N) of SSIDs smaller than N.

  In a wireless LAN access point device according to a second aspect of the present invention, the wireless LAN module is connected to a WAN via a LAN, and for a wireless LAN station device connected by the automatic wireless setting, Access to the nodes in the LAN is prohibited, and access only to the WAN is permitted. With an SSID connected by automatic wireless setting, it is possible to prevent access to a node in the LAN and viewing of a file or the like.

  In the wireless LAN access point device according to the third aspect of the present invention, a radio frequency band to be used is different from the at least one SSID and the other SSID. The wireless LAN station device can be connected to an SSID in an appropriate frequency band according to the radio wave environment by automatic wireless setting.

  In a wireless LAN access point device according to a fourth aspect of the present invention, the operation unit includes a push button, and automatic wireless setting is started when a user presses the push button, and the automatic wireless setting is easily executed. Can do.

  In a wireless LAN access point device according to a fifth aspect of the present invention, the operation unit includes a display unit, and displays the SSID related to the automatic wireless setting when the automatic wireless setting is executed. The user can easily confirm the SSID for which automatic wireless setting is performed.

  In a wireless LAN access point device having a plurality of SSIDs, by limiting the SSIDs that can be connected by automatic wireless setting, an appropriate wireless LAN service can be provided to wireless LAN station devices connected by automatic wireless setting.

It is a block diagram which shows the outline of a structure of the wireless LAN access point apparatus concerning embodiment of invention. It is a block diagram which shows the principal part of a structure of the said wireless LAN access point apparatus. It is a figure which shows the operation panel of the said wireless LAN access point apparatus. It is a flowchart explaining the allocation process of the automatic wireless setting to SSID of the said wireless LAN access point apparatus. It is a flowchart explaining the process of the automatic wireless setting of the said wireless LAN access point apparatus. It is a figure explaining the setting of the service provided with respect to SSID of the said wireless LAN access point.

  A wireless LAN access point device according to an embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a schematic configuration of a wireless LAN access point device 1. The wireless LAN access point device 1 includes a wireless LAN module 2, a UTM (Unified Threat Management) module 4, a NAS (Network Attached Storage) module 5, and a power supply module 6. The wireless LAN access point apparatus 1 has a UTM function and a NAS function. Functions as an access point.

  The wireless LAN module 2 conforms to standards such as IEEE (The Institute of Electrical and Electronics Engineers, Inc.) 802.11a, ac, b, g, and n, and functions as an access point in the infrastructure mode. The wireless LAN module 2 is capable of multiple access (MIMO: Multiple Input Multiple Output) and includes three sleeve antennas 3.

The UTM module 4 is a gateway having security functions such as firewall, anti-virus, and unauthorized access blocking. The UTM module 4 is connected to a WAN (for example, the Internet) 8 via a line termination device 7. The UTM module 4 is connected to the wired LAN 9 via the LAN cable 11a. In the following description, “LAN” is used as a generic term for a wired LAN and a wireless LAN.

  The NAS module 5 functions as a file server including a hard disk drive (HDD) and a solid state drive (SSD), which will be described in detail later. The NAS module 5 is connected to the UTM module 4 via the LAN cable 11b. The NAS module 5 is connected to the wireless LAN module 2 via a PCI (Peripheral Component Interconnect) Express bus (hereinafter abbreviated as PCIe bus) 13.

  The power supply module 6 converts alternating current (AC) 100 V from the commercial power supply 10 into direct current, and supplies the direct current to the wireless LAN module 2, UTM module 4, and NAS module 5. The wireless LAN access point device 1 according to this embodiment stores a wireless LAN module 2, a UTM module 4, a NAS module 5, and a power supply module 6 in one casing. The UTM module 3 may be omitted. In that case, the UTM module 3 may be connected to the WAN 8 via a firewall or UTM provided separately in the wired LAN 9.

  Next, the configuration of the NAS module 5 will be described with reference to FIG. The SoC (System on Chip) 51 is an integrated circuit in which one or more CPU (Central Processing Unit) cores, a memory controller, and various input / output interfaces are formed on one chip. A DDR SDRAM (Double-Data-Rate Synchronous Dynamic Random Access Memory) 52 is connected to the SoC 51. The DDR SDRAM 52 becomes a work area of the CPU core in the SoC 51, and various programs and data being processed are developed.

  An SD memory card 53 is connected to the SoC 51 via a connector 53a. The SD memory card 53 includes a flash memory that is a nonvolatile memory, and stores a boot loader, an OS (Operating System), various applications, and setting data. When the SoC 51 is activated, the CPU core reads and executes the boot loader, reads the OS and various applications, and develops them in the DDR SDRAM 52.

  A RAID (Redundant Array of Inexpensive Disks) module 54 is connected to the SoC 51. The HDD 55a and the HDD 55b are connected to the RAID module 54 through a SATA (Serial Advanced Technology Attachment) bus. The HDDs 55a and 55b are storages provided to nodes connected to the LAN. The RAID module 54 performs mirroring between the two HDDs 55a and 55b to increase redundancy (RAID_1).

That is, the same data is stored in the HDDs 55a and 55b, and even if one HDD fails, the other HDD can continue to operate as a NAS. In this example, two HDDs are used as an example, but triple mirroring may be performed with three HDDs to further increase redundancy. In the case of three or more HDDs, the HDD usage efficiency may be increased while maintaining redundancy by RAID distributed recording (RAID_5).

  As described above, the wireless LAN module 2 is connected to the SoC 51 via the PCIe bus. Further, a PHY chip 56, an operation panel 60, and an RTC (Real Time Clock) 57 are connected to the SoC 51. The PHY chip 56 is a chip that converts between a logical signal and a physical signal, and is connected to the SoC 51 by RMII (Reduced Media Independent Interface). The PHY chip 56 is connected to the UTM module 4 by the LAN cable 11b. The operation panel 60 and the RTC 57 are connected to the SoC 51 via an I2C (Inter-Integrated Circuit) serial bus.

  The RTC 57 outputs date / time information to the SoC 51. The battery 58 is connected to the RTC 57, and the RTC 57 continues the timekeeping operation by the battery 58 even when the power of the wireless LAN access point device 1 is turned off.

FIG. 3 shows the appearance of the operation panel 60. The operation panel 60 includes a liquid crystal display 61, an automatic wireless setting button 62, LEDs (Light Emitting Diodes) 63, 63, 65, 66, 67a, 67b, and display operation buttons 68a, 78b. The liquid crystal display 61 displays the state of the apparatus, the occurrence of an error, etc. by characters. The automatic wireless setting button 62 is a button for starting automatic wireless setting described later when pressed.

  The LED 63 displays the power state of the wireless LAN access point device 1, and the LED 64 displays the status of the wireless LAN access point device 1. The LED 65 displays the state of the wired LAN 9, and the LED 66 displays the state of the wireless LAN 14. The LEDs 67a and 67b display the status of the HDDs 55a and 55b, respectively. These LEDs 63 to 66, 67a, 67b are multicolored LEDs, and various states can be discriminated by the user by the blinking pattern and the emission color.

  Next, the setting of the SSID of the wireless LAN module 2 will be described. This setting can be performed using a browser of the computer 13 connected to the wired LAN 9 (or the wireless LAN 14). The NAS module 5 can be accessed by inputting a predetermined URL into the browser of the computer 13. The NAS module 5 provides a WEB UI (WEB User Interface) to the computer 13 by executing a WEB server application.

  The user operates the browser of the computer to display the SSID setting menu. From this displayed menu, the user registers the SSID used in the wireless LAN module 2. A plurality of SSIDs can be registered in the wireless LAN module 2. The user can also set whether to assign automatic wireless settings to the SSID. The SSID and the presence / absence of automatic wireless setting for the SSID are received by the SoC 51 of the NAS module 5 from the computer via the LAN, transferred to the wireless LAN module 2 via the PCIe bus 12, and not shown in the wireless LAN module 2. Stored in non-volatile memory.

  FIG. 4 is a flowchart illustrating a procedure for registering one SSID (x). At the start of the flow in FIG. 4, the SSID setting screen is displayed on the browser of the computer. First, one SSID (x) is registered, and a connection destination, a frequency band, and the like for the SSID (x) are set (step (hereinafter abbreviated as “S”) 1). When the automatic wireless setting is assigned in the next determination of S2 (YES), the process branches to the process of S3, the automatic wireless setting is assigned to SSID (x), and SSID (x) is registered. If the determination in S2 is NO, SSID (x) is registered without assigning automatic wireless settings (S4). This process is repeated for the number of SSIDs to be registered.

  FIG. 6A shows a case where two SSID (1) and SSID (2) are registered. The connection destination of SSID 1 is only WAN, and automatic wireless setting is assigned. On the other hand, SSID2 is not assigned automatic wireless setting where the connection destination is WAN and LAN. For example, when a customer at a business establishment wants to access the WAN 8 by connecting to a wireless LAN, the wireless LAN station device 15 of the customer is connected to the SSID (1) of the wireless LAN 14 by applying the automatic wireless setting and applying the automatic wireless setting. . The visitor's wireless LAN station device 15 connected to the SSID (1) can access only the WAN 8, and the information of the nodes such as the HDDs 55a and 55b of the NAS module 5 and the computers, servers, smartphones, and tablets on the LAN is provided to the visitor. I can't see. In addition, the user who belongs to the office can access the WAN and the LAN by following the association procedure, inputting the qualification information, and connecting to the SSID (2).

  FIG. 6B shows a case where two SSID (1) and SSID (2) are registered in the same manner, but the 2.4 GHz band is used for SSID (1) and the 5 GHz band is used for SSID (2). Is assigned. Then, the wireless automatic registration is assigned to the SSID (1), and the wireless LAN can be connected to the wireless LAN 14 at a stable frequency that can be used outdoors. When the high speed of communication is important, 5 GHz band may be assigned to SSID (1) and 2.4 GHz band may be assigned to SSID (2).

Next, a process for connecting the wireless LAN station device to the wireless LAN using the automatic wireless setting when the SSID is set as shown in FIG. 6 will be described with reference to FIG. When the wireless LAN module 2 is operating normally (the LED 66 is lit at this time), it is determined whether or not the automatic wireless setting button 62 of the wireless LAN access point device 1 has been pressed (S11). When the user presses the automatic wireless setting button 62, the determination in S11 is YES and the process branches to S12. At this time, the automatic wireless setting button 15a of the wireless LAN station device 15 is also pressed.

  The pressing of the automatic wireless setting button 62 is detected by the SoC 51 and transmitted from the SoC 51 to the wireless LAN module 2 via the PCIe bus 12. The SoC 51 displays the SSID (1) for automatic wireless setting on the liquid crystal display 61 on the liquid crystal display 61 (S12). Although “SSID (1)” is displayed in FIG. 3, it may be displayed directly in hexadecimal. Then, the SoC 51 starts blinking the LED 66 to notify the user that automatic wireless setting is being executed (S13).

  The SoC 51 notifies the wireless LAN module 2 of the start of automatic wireless setting via the PCIe bus 12. The wireless LAN module 2 starts automatic wireless setting, exchanges a predetermined signal with the wireless LAN station device 15 whose automatic wireless setting button is pressed, and establishes a connection (S14). When the connection is established, the automatic wireless setting is completed, and when the notification of the completion of the setting is received from the wireless LAN module 2, the SoC 51 returns the LED 66 to the lighting state (S15).

  In the above embodiment, there are two SSIDs, and automatic wireless setting is assigned to one of the SSIDs. When there are three or more N SSIDs, n of these SSIDs (1 Automatic wireless settings can be assigned to ≦ n <N). In the above embodiment, the wireless LAN access point device incorporating the UTM module and the NAS module has been described. However, the wireless LAN access point device including only the wireless LAN module can be realized.

1: Wireless LAN access point device 2: Wireless LAN module 4: UTM module 5: NAS module 6: power supply module 8: WAN
9: Wired LAN
13: Computer (PC)
14: Wireless LAN
15: Wireless LAN station device 15a: Automatic wireless setting button 60: Operation panel 61: Liquid crystal display 62: Automatic wireless setting button

Claims (5)

In a wireless LAN access point device including a wireless LAN module having a plurality of SSIDs and an operation unit,
The wireless LAN module is
Perform automatic wireless setting based on the instruction from the operation unit,
A wireless LAN access point device configured to perform automatic wireless setting for at least one SSID of the plurality of SSIDs. The wireless LAN module is connected to the WAN via the LAN, and access to the nodes in the LAN is prohibited for the wireless LAN station device connected by the automatic wireless setting, and only the WAN is accessed. The wireless LAN access point device according to claim 1, which permits the above. The wireless LAN access point apparatus according to claim 1, wherein the at least one SSID and another SSID use different radio frequency bands. The wireless LAN access point device according to claim 1, wherein the operation unit includes a push button, and automatic wireless setting is started by pressing the push button. 5. The wireless LAN access point device according to claim 1, wherein the operation unit includes a display unit, and displays the SSID related to the automatic wireless setting when the automatic wireless setting is executed. 6.

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