JP6159080B2 - Wireless LAN setting device - Google Patents

Description

  The present invention relates to a wireless LAN setting device that distributes wireless LAN setting information to a wireless LAN target terminal that requests a wireless LAN connection to a wireless LAN access point and performs wireless LAN setting. The present invention relates to a wireless LAN setting device that can confirm the validity of wireless LAN setting information set in a setting terminal.

  In recent years, wireless LAN terminals represented by smartphones, portable game machines, digital photo frames, and the like are rapidly spreading. When using these wireless LAN terminals, it is necessary to perform connection settings with a wireless LAN access point (wireless AP) prepared in advance by the user. This connection setting is called wireless LAN setting, and the following setting information is registered in the wireless LAN terminal.

(1) Wireless AP's SSID (Service Set Identifier): an ID that uniquely identifies an access point
(2) Encryption key / password (KEY)

  However, in order to set these pieces of setting information in the wireless LAN set terminal, expert knowledge about the wireless LAN is required, and thus it is not an easy operation for an unfamiliar user.

  In order to deal with such technical problems, Patent Document 1 arranges a server for distributing wireless LAN setting information, and a terminal to be set connects to the distribution server to download the wireless LAN setting information and installs it on itself. Thus, a technique for performing wireless LAN setting is disclosed.

JP 2005-65018

  In Patent Document 1, even if there is an error in the wireless LAN setting information registered in the distribution server and it is not possible to establish a wireless LAN connection in the set terminal that has downloaded the setting information, this is fed back to the distribution server. I couldn't. Accordingly, since incorrect setting information continues to be distributed to the set terminal that requested connection thereafter, a situation may occur in which many set terminals cannot be connected to the wireless LAN.

  The object of the present invention is to solve the above-mentioned problems of the prior art, and if the wireless LAN setting information distributed by the distribution server is incorrect and the wireless LAN setting is not correctly performed in the set terminal, the distribution server The object is to provide a wireless LAN setting device which can be recognized.

  In order to achieve the above object, the present invention is characterized in that a wireless LAN setting device for distributing wireless LAN setting information to a wireless LAN set terminal has the following configuration.

  (1) means for managing wireless LAN setting information, means for storing a web page including a web program for wireless LAN connection confirmation, means for detecting a wireless LAN setting request transmitted from a set terminal, wireless LAN Means for responding to the setting request with the wireless LAN setting information and the Web page, and means for determining the validity of the wireless LAN setting information based on a message transmitted from the terminal to be set according to the Web program.

  (2) The Web program includes a confirmation function for confirming the wireless LAN connection from the setting target terminal to the wireless LAN access point, and a notification function for notifying the confirmation result to the wireless LAN setting device.

  (3) The Web program sends a message from the set terminal to the wireless LAN setting device before sending the wireless LAN, and a message from the set terminal to the wireless LAN setting device and the message after the wireless LAN setting. And a second transmission function for transmitting the message, wherein the means for determining the validity determines the validity of the wireless LAN setting information based on whether or not the transmission source address of the message has been changed within a predetermined time. I made it.

  According to this embodiment, the following effects are achieved.

  (1) The wireless LAN setting information is distributed to the wireless terminal MN by the distribution server that responds to the Web page for the setting confirmation Web program together with the wireless LAN setting information. At the same time, the connection confirmation to the wireless AP is attempted according to the Web program, and the result of the connection confirmation is notified to the distribution server, so the distribution server manages itself without adding a new function to the wireless terminal MN. It is possible to easily determine the validity of the wireless LAN setting information to be performed.

  (2) The distribution server that distributes the wireless LAN setting information responds to the Web page with the Web program for setting confirmation together with the wireless LAN setting information, and the wireless terminal MN that receives these installs the wireless LAN setting information. At the same time, a message is sent to the distribution server according to the Web program. Here, if the wireless LAN setting is performed correctly, the source address in the message distribution server is changed before and after that, so that the distribution server manages itself without adding a new function to the wireless terminal MN. It is possible to determine the validity of the wireless LAN setting information to be performed.

It is the figure which showed the structure of the wireless LAN to which this invention is applied. It is a functional block diagram of wireless AP. FIG. 3 is a functional block diagram of a radio terminal MN (configured terminal). It is a functional block diagram of 1st Embodiment of a distribution server. It is the wireless LAN setting sequence which concerns on 1st Embodiment (the 1). It is the wireless LAN setting sequence which concerns on 1st Embodiment (the 2). It is a functional block diagram of 2nd Embodiment of a distribution server. It is the wireless LAN setting sequence which concerns on 2nd Embodiment (the 1). It is the wireless LAN setting sequence which concerns on 2nd Embodiment (the 2). It is a functional block diagram of the distribution server provided with the update function of the wireless LAN setting information by which the legitimacy was denied.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing a configuration of a network to which a wireless LAN setting device of the present invention is applied. Here, a wireless terminal MN as a wireless LAN set terminal is wirelessly connected to a wireless LAN access point (wireless AP). A case where wireless LAN setting for LAN connection is performed remotely from a distribution server as a wireless LAN setting device provided on the network will be described as an example.

The wireless terminal MN includes a plurality of wired and / or wireless communication interfaces including a wireless LAN interface compliant with the IEEE802.11 standard. The wireless AP stores wireless LAN setting information including a network name (SSID) and an encryption key (KEY) for wireless LAN connection. The wireless LAN setting information is associated with wireless AP attribute information or identification information (hereinafter collectively referred to as wireless AP information) and registered in advance in the distribution server. As the wireless AP information, for example, an ID, a password, or a MAC address set as subscriber information of the wireless AP can be used.
FIG. 2 is a functional block diagram showing the configuration of the main part of the wireless AP. Here, the configuration unnecessary for the description of the present invention is omitted.

  The wireless LAN interface 101 transmits and receives wireless signals. The communication control unit 102 encrypts the wireless signal transmitted from the wireless LAN interface 101 and decrypts the wireless signal received by the wireless LAN interface 101. In the memory area 103, the wireless LAN setting information holding unit 103a holds a network name SSID, an encryption key KEY, and an encryption method specific to the wireless AP as wireless LAN setting information in advance. The control unit 104 controls main operations of the wireless AP.

FIG. 3 is a functional block diagram showing the configuration of the main part of the radio terminal MN, and again, the configuration unnecessary for the description of the present invention is omitted.
The wireless LAN interface 201 transmits and receives wireless signals. The communication control unit 202 encrypts the wireless signal transmitted from the wireless LAN interface 201 and decrypts the wireless signal received by the wireless LAN interface 201.

  The UI unit 203 includes a touch switch (SW) 203a that accepts a user's operation and a display panel 203b. In the present embodiment, when an icon or switch displayed on the display panel 203b is touched, this is detected by the touch SW 203a. It is configured to be.

  The communication interface 205 transmits and receives wireless signals such as EV-DO and LTE. The communication control unit 206 encrypts the radio signal transmitted from the communication interface 205 and decrypts the radio signal received by the communication interface 205. Various programs and control data are stored in the ROM 208 in advance. The RAM 209 provides a work area to the control unit 204.

[First embodiment]
FIG. 4 is a functional block diagram showing the configuration of the main part of the distribution server according to the first embodiment of the present invention, and here, the configuration unnecessary for the description of the present invention is also omitted.

  The communication interface 301 transmits / receives data via a network. The setting information management unit 302 stores wireless LAN setting information including a pair of SSID and encryption key for each wireless AP information. The web page storage unit 303 stores a web page including a web program for confirming wireless LAN connection. As will be described in detail later, this Web program can exhibit a confirmation function for confirming the wireless LAN connection from the wireless terminal MN to the wireless AP and a notification function for notifying the distribution server of the confirmation result.

  In the control unit 304, the wireless LAN setting request detection unit 304a detects a wireless LAN setting request transmitted from the wireless terminal MN. The AP information extraction unit 304d extracts wireless AP information included in the setting request. The response unit 304b responds to the wireless LAN setting request with the wireless LAN setting information and the web page. The validity determination unit 304c determines the validity of the responding wireless LAN setting information based on the confirmation result notified in accordance with the Web program executed on the Web page of the wireless terminal MN.

  5 and 6 are flowcharts showing the operation of the first embodiment of the present invention. FIG. 5 is a sequence when the wireless LAN setting is correctly performed. FIG. 6 is a wireless LAN connection that is not correctly performed. This is the sequence when

  5 and 6, at time t1, a wireless LAN setting request including wireless AP information desired for wireless LAN connection, that is, the wireless AP information is transmitted from the wireless terminal MN to the distribution server. The communication path for the setting request may be any of a mobile phone communication network and a fixed communication network via another existing wireless LAN.

  At time t2, the setting request is detected by the wireless LAN setting request unit 304a of the distribution server, and the wireless AP information included in the setting request is extracted by the AP information extraction unit 304d. Furthermore, based on the extracted wireless AP information, setting information corresponding to the wireless AP information is selected from among a plurality of setting information registered in the setting information management unit 302.

  At time t3, the selected wireless LAN setting information and connectivity check Web page are responded by the response unit 304b from the distribution server to the wireless terminal MN. This connectivity confirmation web page is a web program (JavaScript) that has a function that allows the wireless terminal MN to attempt a wireless LAN connection to the wireless AP to perform communication confirmation and to notify the distribution server of the confirmation result. (Registered trademark)).

  At time t4, the wireless terminal MN that has received the wireless LAN setting information installs the wireless LAN setting information in itself so that wireless LAN setting is performed. At time t5, an attempt is made to connect to the wireless AP based on the wireless LAN setting information by the operating system (OS) of the wireless terminal MN. The connectivity check here is performed by, for example, broadcasting a message in which the wireless LAN setting information (SSID, encryption key) is described in layer 2 and detecting the response.

  If the wireless LAN setting information is correct, the connectivity check is successful, and as shown in FIG. 5, at time t6, the interface is switched from the cellular phone communication network to the wireless LAN. Therefore, thereafter, all messages addressed to the distribution server are transferred via the wireless AP. At time t7, the web browser of the wireless terminal MN is activated and the web program is executed on the web browser.

  At time t8, a connection request for communication confirmation is transmitted from the wireless terminal MN to the wireless AP according to the Web program. The connection request may be transmitted by either sequentially transmitting to a pre-specified IP address, by transmitting at once, or by broadcasting a message for inquiring device information in the network. Furthermore, whether or not the connection has been established may be confirmed by providing a timer for determining whether or not the wireless AP exists for a certain period of time, or the wireless AP information is obtained as a result of broadcasting a message for inquiring device information. Any of the methods for judging from the fact that there is nothing may be used.

  If the wireless LAN setting is correctly performed, a connection response is returned from the wireless AP to the wireless terminal MN at time t9. At time t10, a message indicating that the wireless LAN setting is successful is transmitted from the wireless terminal MN to the distribution server according to the Web program. The message is notified to the distribution server via the wireless AP.

  In the distribution server, since the notification is received by the validity determining unit 304c and the wireless LAN connection based on the responded wireless LAN setting information is successful, the validity of the wireless LAN setting information is affirmed at time t11. Is done. At time t12, a notification response is returned from the distribution server to the wireless terminal MN via the wireless AP.

  In this embodiment, if the wireless terminal MN cannot receive the notification response (t12) from the distribution server, the Web program can determine that the LAN cable of the WAN side interface of the wireless AP is in an unconnected state. By displaying on the display panel 203b, the user can be prompted to confirm the connection of the LAN cable.

  On the other hand, if the wireless LAN setting is not performed correctly, as shown in FIG. 6, no response message is returned even if an attempt is made to connect to the wireless AP at t5. No priority is given to the interface of the cellular phone network. At time t6, the web browser of the wireless terminal MN is activated, and the web program is executed on the web browser.

  At time t7, according to the Web program, a connection request for communication confirmation is transmitted from the wireless terminal MN.However, since a response message is not returned here, the wireless terminal MN, after elapse of a predetermined time from the time t7, Recognize that the wireless LAN connection with the wireless AP failed.

  At time t8, the wireless terminal MN notifies the distribution server that the wireless LAN setting has failed via the mobile phone communication network or other existing wireless LAN. In the distribution server, since the notification is received by the validity determination unit 304c and the wireless LAN connection based on the responding wireless LAN setting information has failed, the validity of the wireless LAN setting information is denied at time t9. . At time t10, a notification response is returned from the distribution server to the wireless terminal MN via the mobile phone communication network or other existing wireless LAN.

  According to the present embodiment, the distribution server that distributes the wireless LAN setting information to each wireless terminal MN responds to the Web page configured with the Web program for setting confirmation together with the wireless LAN setting information, and the wireless terminal that has received these In the MN, the wireless LAN setting information is installed, the connection confirmation to the wireless AP is attempted according to the Web program, and the result of the connection confirmation is notified to the distribution server. Without adding a function, the distribution server can determine the validity of the wireless LAN setting information managed by itself.

[Second Embodiment]
FIG. 7 is a functional block diagram showing the configuration of the main part of the distribution server according to the second embodiment of the present invention. .

  In this embodiment, the Web program included in the Web page includes a first transmission function for transmitting a message from the wireless terminal MN to the distribution server before the wireless LAN setting, and a second transmission function for transmitting a message after the wireless LAN setting. The feature is that the validity of the wireless LAN setting information is determined based on whether or not the message source address has been changed before and after the wireless LAN setting.

  FIGS. 8 and 9 are flowcharts showing the operation of the second embodiment of the present invention. FIG. 8 is a sequence when the wireless LAN setting is correctly performed. FIG. 9 is a wireless LAN setting that is not correctly performed. This is the sequence when

  7 and 8, at time t1, a wireless LAN setting request including the wireless AP information is transmitted from the wireless terminal MN to the distribution server via the mobile phone network. At time t2, the setting request is detected by the wireless LAN setting request unit 304a of the distribution server, and the wireless AP information included in the setting request is extracted by the AP information extraction unit 304d. Further, wireless LAN setting information corresponding to the extracted wireless AP information is selected from the setting information management unit 302.

  At time t3, the selected wireless LAN setting information and connectivity check Web page are responded by the response unit 304b from the distribution server to the wireless terminal MN. This connectivity confirmation Web page includes a Web program (JavaScript (registered trademark)) having a function for causing the wireless terminal MN to attempt communication with the distribution server.

  At time t4, the web browser of the wireless terminal MN is activated and the web program is executed on the web browser. At time t5, a message is transmitted from the wireless terminal MN to the distribution server via the band telephone network by the first function of the Web program. This message transmission is repeated for a certain period of time. In the distribution server, the source address of the message is constantly monitored. In addition, a random number (identification information) unique to each wireless terminal MN is embedded in the message transmitted from the wireless terminal MN, thereby preventing spoofing of the wireless terminal MN.

  At time t6, the wireless terminal MN installs the wireless LAN setting information received from the distribution server in itself to perform wireless LAN setting. Therefore, thereafter, all messages addressed to the distribution server are transferred via the wireless AP. At time t7, a message is transmitted from the wireless terminal MN to the distribution server by the second function of the Web program.

  Here, if the wireless LAN setting is correctly performed, as shown in FIG. 8, the message is transferred to the distribution server via the wireless AP at time t8. The distribution server identifies the transmission source based on the random number of the message received from the wireless terminal MN at time t9, and determines whether or not the transmission source address of the message with the same random number has been changed.

  Further, if the wireless LAN setting is correctly performed, the message path is changed from not via the wireless AP to via the wireless AP. The source address is changed to the address of the wireless AP, the home gateway connected to the higher level, and the IP address of a NAT router (not shown) connected to the higher level network. Therefore, when the change of the transmission source address is detected, the validity determination unit 304c affirms the validity of the responded wireless LAN setting information. At times t10 and t11, a wireless LAN setting completion response is sent from the distribution server to the wireless terminal MN.

  On the other hand, if the wireless LAN setting is not correctly performed, as shown in FIG. 9, even if a message is transmitted to the distribution server at time t7, a wireless LAN connection is established with the wireless AP. Since it cannot be established, the message continues to be transmitted via the mobile phone network.

  In the distribution server, if the change of the transmission source address cannot be detected for a predetermined time or more, the validity determination unit 304c denies the validity of the responding wireless LAN setting information. At time t8, a failure of wireless LAN setting is responded from the distribution server to the wireless terminal MN.

  According to the present embodiment, the distribution server that distributes the wireless LAN setting information to each wireless terminal MN responds to the Web page configured with the Web program for setting confirmation together with the wireless LAN setting information, and the wireless terminal that has received these In the MN, the wireless LAN setting information is installed, and a message is transmitted to the distribution server according to the Web program. Here, if the wireless LAN setting is correctly performed, the source address of the message is changed before and after that, so the distribution server manages the wireless LAN managed by itself without adding a new function to the wireless terminal MN. The validity of the setting information can be determined.

  In any of the above embodiments, when the validity of the wireless LAN setting information is denied by the distribution server, the distribution server sends the wireless LAN setting information to the wireless AP of the wireless LAN setting information for which the validity is denied. The wireless LAN setting information may be updated based on the inquiry and the inquiry result.

  FIG. 10 is a diagram illustrating an example of a distribution server having such an update function. In the control unit 304, the update unit 304e determines that the validity is denied by the validity determination unit 304c. An inquiry message is sent to the wireless AP. The wireless AP that has received the message responds with a message describing the SSID and KEY registered in its own wireless LAN setting information holding unit 103a. The update unit 304e updates the corresponding wireless LAN setting information registered in the setting information management unit 302 based on the SSID and KEY described in the response message.

  DESCRIPTION OF SYMBOLS 101,201 ... Wireless LAN interface, 102, 202 ... Communication control part, 103 ... Memory area, 104, 204 ... Control part, 203 ... UI part, 203a ... Touch switch (SW), 203b ... Display panel, 205 ... Communication interface , 206 ... Communication control unit, 208 ... ROM, 209 ... RAM, 301 ... Communication interface, 302 ... Setting information management unit, 303 ... Web page storage unit, 304a ... Wireless LAN setting request detection unit, 304b ... Response unit, 304c ... Validity determination unit, 304d... AP information extraction unit, 304e.

Claims (7)

In a wireless LAN setting device that distributes wireless LAN setting information to wireless LAN target terminals,
Means for managing wireless LAN setting information;
Means for storing a web page including a web program for wireless LAN connection confirmation;
Means for detecting a wireless LAN setting request transmitted from the set terminal;
Means for responding to the wireless LAN setting request and the wireless LAN setting information and a web page;
Means for determining the validity of the wireless LAN setting information based on whether or not a message can be received from the set terminal via the wireless LAN access point corresponding to the responding wireless LAN setting information. A wireless LAN setting device. The web program is
Confirmation function to confirm the wireless LAN connection from the set terminal to the wireless LAN access point,
The wireless LAN setting device according to claim 1, further comprising a notification function for notifying the wireless LAN setting device of the confirmation result.   If the web program tries to connect to the external network from the configured terminal via the wireless LAN access point, and the connection fails, a message stating that the LAN cable is not correctly connected to the WAN side of the wireless LAN access point is displayed. The wireless LAN setting device according to claim 2, further comprising a function of displaying on a set terminal. In a wireless LAN setting device that distributes wireless LAN setting information to wireless LAN target terminals,
Means for managing wireless LAN setting information;
Means for storing a web page including a web program for wireless LAN connection confirmation;
Means for detecting a wireless LAN setting request transmitted from the set terminal;
Means for responding to the wireless LAN setting request and the wireless LAN setting information and a web page;
Means for determining validity of wireless LAN setting information based on a message transmitted by the set terminal according to the Web program;
The Web program is after the means for responding responds to the wireless LAN setting information and the Web page, and before the means for determining the validity determines the validity,
A first transmission function for transmitting a message from the set terminal to the wireless LAN setting device before the set terminal performs wireless LAN setting based on the responded wireless LAN setting information ;
A second transmission function for transmitting a message from the set terminal to the wireless LAN setting device after the set terminal performs the wireless LAN setting based on the responded wireless LAN setting information ;
The means for determining the validity determines the validity of the wireless LAN setting information based on whether or not a source address of the message has been changed within a predetermined time. Wireless LAN setting device.   The wireless LAN setting device according to claim 4, wherein the first and second transmission functions include identification information unique to each set terminal in the message to be transmitted. Further comprising means for extracting identification information of a wireless LAN access point included in the wireless LAN setting request;
The means for managing the wireless LAN setting information manages the wireless LAN setting information for each wireless LAN access point identification information,
6. The wireless LAN setting device according to claim 1, wherein the responding unit responds with wireless web setting information corresponding to the extracted identification information together with the web page. Further comprising means for inquiring wireless LAN setting information from a wireless LAN access point of wireless LAN setting information whose validity is denied by the means for determining validity, and updating the wireless LAN setting information based on the inquiry result The wireless LAN setting device according to claim 4 , wherein the wireless LAN setting device is a wireless LAN setting device.