JP5443882B2 - Network device setting system, network device setting method and program - Google Patents

Description

  The present invention relates to a network device setting system, a network device setting method, and a program for setting network devices via a network.

  Setting of a network device such as a router is usually performed by another computer or the like using a TCP / IP protocol or the like via a network. At this time, a session is established between the computer and the network device by the network device setting software or browser installed on the computer, a request is transmitted from the computer to the network device, and a response to this request is received from the network device. Sent to. As shown in FIG. 1, a series of settings for a network device is performed by repeating transmission and reception of the request and response.

  When a local network is connected to a global network such as the Internet, an unauthorized access may be made to a device inside the local network from a device outside the local network. Usually, in order to prevent such unauthorized access, a device having a firewall function that restricts communication from the outside to the inside of the local network to only specific communication is arranged between the local network and the global network.

  In this way, when the communication from the outside to the inside of the local network is restricted by the firewall function, for example, the communication exchanged when setting the network device inside from the outside of the local network is also restricted. Become. For this reason, when setting the network device from the outside to the inside of the local network, it is necessary to remove the restriction of communication exchanged when performing the setting. However, removing the restriction of communication from the outside in order to perform the setting involves a risk of allowing unauthorized access.

  Usually, communication related to transmission / reception of electronic mail is not restricted by a firewall function. Therefore, it is better to use e-mail when setting up network devices from the outside to the inside of the local network. For example, Patent Document 1 discloses a method for setting a remote device using electronic mail.

JP 2004-129280 A

  However, Patent Document 1 does not consider performing a series of settings by exchanging a plurality of requests and a plurality of responses as shown in FIG.

  Therefore, the present invention has been made in view of the above problems, and the setting of a network device connected to a local network in which communication from the outside of the local network is restricted by a firewall function is performed from the outside of the local network. It is an object to provide a network device setting system, a network device setting method, and a program.

  In order to solve the above problems, a network device setting system according to the present invention is configured by connecting a first computer, a second computer, a first network device, and a second network device. The first computer transmits a plurality of requests to the first network device, and receives a plurality of responses to each of the plurality of requests from the first network device. A network device setting unit configured to perform a series of settings for the network device, and a plurality of requests transmitted to the first network device by the network device setting unit during the series of settings performed by the network device setting unit. To collect the multiple requests Request communication log acquisition means for generating a quest communication log, and first e-mail generation for converting the request communication log generated by the request communication log acquisition means into an attached file and generating an e-mail attached with the attached file And first e-mail transmission means for transmitting the e-mail generated by the first e-mail generation means to the second computer, wherein the second computer A first e-mail receiving unit for receiving an e-mail transmitted by the e-mail transmitting unit; and a request communication log for decoding an attached file attached to the e-mail received by the first e-mail receiving unit. The first e-mail decrypting means for generating the request and the request decrypted by the first e-mail decrypting means A request communication log reproducing means for transmitting the plurality of requests contained in the communication log to the second network device, and having a.

  Further, in the network device setting system according to the present invention, the second computer sends a plurality of responses to the plurality of requests transmitted to the second network device by the request communication log reproducing means. A response communication log acquisition unit that generates a response communication log by collecting the plurality of acquired responses, and converts the response communication log generated by the response communication log acquisition unit into an attachment file, A second e-mail generating unit that generates the attached e-mail; and a second e-mail transmitting unit that transmits the e-mail generated by the second e-mail generating unit to the first computer. And the first computer sends the second e-mail. A second e-mail receiving means for receiving the e-mail transmitted by the means; and decoding an attached file attached to the e-mail received by the second e-mail receiving means to generate the response communication log A second e-mail decoding unit; and a response communication log reproducing unit that transmits the plurality of responses included in the response communication log generated by the second e-mail decoding unit to the network device setting unit. You may do it.

  The network device setting system according to the present invention is a network device setting system to which a firewall device is also connected, and the firewall device is disposed between the first computer and the second computer, and The transmission / reception of information between the first computer and the second computer may be restricted, and the transmission / reception of electronic mail between the first computer and the second computer may be permitted.

  In the network device setting system according to the present invention, the network device setting unit transmits the plurality of requests transmitted to the first network device to the response communication log reproduction unit, and the response communication log reproduction unit includes: , Receiving the request transmitted by the network device setting unit, and using the response communication log generated by the second e-mail decrypting unit, a response corresponding to the received request is sent to the network device setting unit. You may make it transmit to.

  In the network device setting method according to the present invention, the first computer transmits a plurality of requests to the first network device and receives a plurality of responses to the plurality of requests from the first network device. And a network device setting step for performing a series of settings for the first network device, and transmitting to the first network device by the network device setting step during the series of settings by the network device setting step. A request communication log acquisition step for generating a request communication log by collecting the plurality of requests, and converting the request communication log generated by the request communication log acquisition step into an attached file, Attached file A first e-mail generation step for generating an e-mail with a file attached thereto, and a first e-mail transmission step for transmitting the e-mail generated by the first e-mail generation step to a second computer, A first e-mail receiving step for receiving the e-mail transmitted by the first e-mail sending step by the second computer; and the e-mail received by the first e-mail receiving step A first e-mail decryption step of decrypting an attached file attached to the request and generating the request communication log; and the plurality of requests included in the request communication log decrypted by the first e-mail decryption step. A request communication log reproduction step to be transmitted to the second network device. To.

  In addition, the program according to the present invention transmits a plurality of requests to the first network device from the first computer, and receives a plurality of responses to the plurality of requests from the first network device. Network device setting means for performing a series of settings for the first network device, and the network device setting means transmitted to the first network device during the series of settings by the network device setting means. A request communication log acquisition unit that acquires a plurality of requests and generates a request communication log by collecting the plurality of requests, and converts the request communication log generated by the request communication log acquisition unit into an attachment file, and the attachment file Generate an email with an attachment A first e-mail generation unit; and a first e-mail transmission unit that transmits the e-mail generated by the first e-mail generation unit to a second computer; First e-mail receiving means for receiving an e-mail transmitted by the first e-mail transmitting means, and decoding an attached file attached to the e-mail received by the first e-mail receiving means, A first electronic mail decrypting means for generating a request communication log, and a request communication log for transmitting the plurality of requests included in the request communication log decrypted by the first electronic mail decrypting means to a second network device. It is characterized by functioning as a reproducing means.

  According to the present invention, setting of a network device connected to a local network in which communication is restricted from outside the local network by the firewall function can be performed from outside the local network.

It is a figure explaining the processing operation performed when setting a network device. It is a figure which shows the structure of the network device setting system which concerns on embodiment of this invention. It is a figure which shows the processing operation in the network device setting system which concerns on embodiment of this invention.

  Next, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 2 is a diagram showing the configuration of the network device setting system according to the embodiment of the present invention. The computer 100, the computer 200, the mail server 300, the mail server 400, the network device 500, the network device 600, the firewall device 700, and the firewall device 800 are configured.

  The computer 100, the network device 500, and the firewall device 700 are connected via a local network. Similarly, the computer 200, the network device 600, and the firewall device 800 are connected via a local network. The mail server 300, the mail server 400, the firewall device 700, and the firewall 800 are connected via a global network such as the Internet.

  The computer 100 includes a request communication log acquisition unit 110, an automatic email transmission / reception unit 120, a response communication log reproduction unit 130, and a network device setting unit 140. For example, the request communication log acquisition unit 110, the automatic email transmission / reception unit 120, the response communication reproduction unit 130, and the network device setting unit 140 may be installed in the computer 100 as software.

  The network device setting unit 140 sets the network device 500. As shown in FIG. 1, the network device 500 is set by repeatedly transmitting a request and a response between the network device setting unit 140 and the network device 600. At this time, for example, the computer 100 is provided with an input unit that receives input from the user. For example, when the input unit receives information related to the setting of the network device 500 from the user, the input information is transmitted to the network device setting unit. 140, the network device setting unit 140 may send a request based on the information input from the user to the network device 500. Further, for example, the computer 100 may be provided with a display unit, and a display based on a response from the network device may be performed by the display unit, so that the user can confirm the response from the network device by this display.

  The request communication log acquisition unit 110 includes a request communication log acquisition unit 111 and an e-mail generation unit 112.

  When the network device setting unit 140 sets the network device 500, the request communication log acquisition unit 111, as shown in FIG. 1, requests and responses exchanged between the network device setting unit 140 and the network device 500. To get. Then, a request communication log is generated by collecting requests exchanged in a series of settings, and a response communication log is generated by collecting responses exchanged in the same manner. That is, the request communication log includes all requests to be sent to the network device when the series of settings are performed on the network device that is the same device as the network device 500 and has the same settings.

  Here, it is assumed that the network device 500 and the network device 600 are the same device and have the same settings. For this reason, if the same series of settings are performed on the network device 500 and the network device 600, a request and a response exchanged when performing a series of settings on the network device 500 and a series of settings on the network device 600 are performed. Requests and responses exchanged are the same. Therefore, when the network device 500 performs a series of settings, the request included in the request communication log in which the requests transmitted to the network device 500 are collected is transmitted to the network device 600, whereby the series performed by the network device 500 is performed. The same series of settings can be performed on the network device 600 as well. Here, the network devices 500 and 600 are routers, firewall devices, and the like. The network devices 500 and 600 may be any devices as long as they can be set via the network.

  The e-mail generation unit 112 converts the request communication log generated by the request communication log acquisition unit into an e-mail attachment file format, and generates an e-mail attached with the attachment file.

  The e-mail automatic transmission / reception unit 120 includes an e-mail transmission unit 121 and an e-mail reception unit 122. The e-mail transmission unit 121 transmits the e-mail generated by the e-mail generation unit 112 to the mail server 300. The e-mail receiving unit 122 automatically receives an e-mail from the mail server 300. For example, the e-mail receiving unit 122 periodically checks whether an e-mail is received by the mail server 300, and receives the e-mail from the mail server 300 when the received e-mail exists. Like that.

  The response communication log reproduction unit 130 includes an e-mail decoding unit 131 and a response communication log reproduction unit 132. The e-mail decoding unit 131 decodes the attached file attached to the e-mail received by the e-mail receiving unit 122 and generates a response communication log from the network device 500. The response communication log reproduction unit 132 returns the response communication log generated by the e-mail decoding unit 131 to the network device setting unit 140.

  The computer 200 includes an e-mail transmission / reception unit 210 and a request communication log reproduction unit 220. For example, the e-mail transmission / reception unit 210 and the request communication log reproduction unit 220 may be installed in the computer 200 as software.

  The e-mail transmitting / receiving unit 210 includes an e-mail receiving unit 211 and an e-mail transmitting unit 212. The e-mail receiving unit 211 automatically receives an e-mail from the mail server 400. For example, the e-mail receiving unit 211 periodically checks whether or not an e-mail is received by the mail server 400, and receives the e-mail from the mail server 400 when the received e-mail exists. Like that. The e-mail transmission unit 212 transmits the e-mail generated by the e-mail generation unit 212 described later to the mail server 400.

  The request communication log reproduction unit 220 includes an e-mail decryption unit 221, a request communication log reproduction unit 222, a response communication log acquisition unit 223, and an e-mail generation unit 224. The e-mail decoding unit 221 decodes the attached file attached to the e-mail received by the e-mail receiving unit 211 and generates a request communication log.

  The request communication log reproducing unit 222 transmits a request to the network device 600 based on the request communication log generated by the e-mail decrypting unit 221. At this time, the request communication log includes a plurality of requests. The order in which the requests are transmitted to the network device 600 is the same as the order in which the requests are transmitted from the network device setting unit 140 to the network device 500. To do. At this time, every time a request is transmitted from the request communication log reproduction means 222 to the network device 600, a response corresponding to this request is transmitted from the network device 600 to the computer 200. The response communication log acquisition unit 223 acquires the response from the network device 600, acquires all the responses to the requests included in the request communication log, and collects all the responses to the requests included in the request communication log. Generate a response communication log.

  The e-mail generation unit 212 converts the response communication log generated by the response communication log acquisition unit 223 into a format of an e-mail attachment file, and generates an e-mail with the attachment file attached.

  The mail server 300 receives the electronic mail transmitted from the computer 100, and transmits the electronic mail to the destination described in the electronic mail. The mail server 300 receives and stores an electronic mail transmitted to the computer 100. When there is a request from the computer 100, the stored e-mail addressed to the computer 100 is transmitted to the computer 100. The mail server 400 receives the electronic mail transmitted from the computer 200 and transmits the electronic mail to the destination described in the electronic mail. The mail server 400 receives and stores an electronic mail transmitted to the computer 200. When there is a request from the computer 200, the stored e-mail addressed to the computer 200 is transmitted to the computer 200.

  The firewall device 700 restricts communication between a local network to which the computer 100 is connected and a global network such as the Internet. Here, it is assumed that transmission / reception of electronic mail between the computer 100 and the mail server 300 is not restricted. Similarly, the firewall device 800 restricts communication between a local network to which the computer 200 is connected and a global network such as the Internet. Here, it is assumed that transmission / reception of electronic mail between the computer 200 and the mail server 400 is not restricted.

  FIG. 3 is a diagram showing processing operations performed in the network device setting system according to the embodiment of the present invention in the configuration of FIG. A processing operation in the network device setting system according to the embodiment of the present invention will be described with reference to FIGS.

  The network device setting unit 140 performs a series of settings for the network device 500 (S101). In this series of settings, the request communication log acquisition unit 111 acquires a request transmitted from the network device setting unit 140 to the network device 500 and a response transmitted from the network device 500 to the network device setting unit 140. (S102). Then, the requests exchanged between the network device setting unit 140 and the network device 500 during a series of settings are collected to generate a request communication log, and similarly, the exchanged responses are collected to generate a response communication log. To do.

  The e-mail generation unit 112 converts the request communication log generated by the request communication log acquisition unit 111 into an e-mail attachment file, and generates an e-mail with the attachment file attached (S103). The destination of the e-mail generated here is the computer 200. The e-mail transmission unit 121 transmits the e-mail generated by the e-mail generation unit 112 to the mail server 300 (S104). The firewall device 700 allows the communication of the e-mail transmitted from the e-mail transmission unit 121 to the mail server 300 without being restricted. The mail server 300 receives the e-mail transmitted by the e-mail transmission unit 121, and sends the received e-mail to the mail server 400 that manages e-mails destined for the computer 200 that is the destination of the received e-mail. A mail is transmitted (S105). The mail server 400 receives and stores the electronic mail transmitted from the mail server 300.

  Here, when the electronic mail addressed to the computer 100 and the electronic mail addressed to the computer 200 are managed by the same mail server, the mail server 300 and the mail server 400 are the same single mail server. At this time, when the mail server receives the electronic mail from the computer 100, the mail server stores the electronic mail without transmitting it to another mail server.

  The e-mail receiving unit 211 receives an e-mail from the mail server 400 (S106). At this time, for example, the e-mail receiving unit 211 periodically checks whether or not the e-mail is received by the mail server 400. If the received e-mail exists, the e-mail receiving unit 211 sends the e-mail to the mail server 400. Receive from. That is, the e-mail receiving unit 211 periodically checks whether e-mails stored in the mail server 400 include e-mails addressed to the computer 200, and e-mails are received when e-mails addressed to the computer 200 exist. Receive.

  The e-mail decoding unit 221 decodes the attached file of the e-mail received by the e-mail receiving unit 211 and generates a request communication log (S107). The request communication log generated here is the same as the request communication log generated by the request communication log acquisition unit in step S102.

  The request communication log reproduction means 222 transmits a request to the network device 600 based on the request communication log generated by the e-mail decryption means 221 (S108). At this time, the request communication log includes a plurality of requests, but the order in which the requests are transmitted to the network device 600 is the same as that when the request is transmitted from the network device setting unit 140 to the network device 500 in step S101. In order.

  Each time a request is transmitted from the request communication log reproducing means 222 to the network device 600, a response corresponding to the request is transmitted from the network device 600 to the computer 200. The response communication log acquisition unit 223 acquires a response from the network device 600 and generates a response communication log by collecting all responses to the requests included in the request communication log (S109). The response communication log is the same as the response communication log generated by the request communication log acquisition unit 111 in step S102 because the network device 500 and the network device 600 are the same device and have the same settings.

  The e-mail generation unit 224 converts the response communication log generated by the response communication log acquisition unit 223 into an e-mail attachment file, and generates an e-mail with the attachment file attached (S110). The destination of the e-mail generated here is the computer 100. The e-mail transmission unit 212 transmits the e-mail generated by the e-mail generation unit 224 to the mail server 400 (S111). The firewall device 800 allows the communication of the e-mail transmitted from the e-mail transmission unit 212 to the mail server 400 without being restricted. The mail server 400 receives the e-mail transmitted by the e-mail transmission unit 212, and sends the received e-mail to the mail server 300 that manages e-mail addressed to the computer 100 that is the destination of the received e-mail. A mail is transmitted (S112). The mail server 300 receives and stores the electronic mail transmitted from the mail server 400.

  The e-mail receiving unit 122 receives an e-mail from the mail server 300 (S113). At this time, for example, the e-mail receiving unit 122 periodically checks whether or not the e-mail is received by the mail server 300, and when the received e-mail exists, the e-mail is sent to the mail server 400. Receive from. That is, the e-mail receiving means 122 periodically checks whether there is a mail addressed to the computer 100 among the e-mails stored in the mail server 300, and sends an e-mail when a mail addressed to the computer 100 exists. Receive.

  The e-mail decoding unit 131 decodes the attached file of the e-mail received by the e-mail receiving unit 122 and generates a response communication log (S114). This response communication log is the same as the response communication log generated by the response communication log acquisition unit 223 in step S109. The response communication log reproducing unit 132 reproduces the response from the network device 500 based on the response communication log generated by the e-mail decrypting unit 131, and returns this response to the network device setting unit 140 (S115).

  When a new series of settings are performed on the network device 500 by the network device setting unit 140, the above processing operation may be repeated.

  By doing in this way, the setting of the network apparatus connected to the local network in which communication from the outside of the local network is restricted by the firewall function can be performed by a device outside the local network.

In step S115, the network device setting unit 140 sends the request included in the request communication log to the response communication log reproduction unit 132.
Response communication log reproduction means 132. A response corresponding to each request may be returned to the network device setting unit 140 using a response included in the response communication log. By doing so, it is possible to confirm from the computer 100 whether or not the network device 600 has been set normally.

  Further, if the computer 100 is provided with means for confirming whether the response communication log generated in step S102 is the same as the response communication log generated in step S114, the network device 600 is normally set from the computer 100. You can check if it was done.

  In the configuration shown in FIG. 2, the firewall device 700 is disposed between the computer 100 and the mail server 300. However, the firewall device 700 is disposed between the mail server 300 and the global such as the Internet. Also good. That is, the mail server 300 may be arranged in a local network to which the computer 100 belongs. At this time, it is assumed that the firewall device 700 permits communication by e-mail between the mail server 300 and a global network such as the Internet. Similarly, in the configuration shown in FIG. 2, the firewall device 800 is arranged between the computer 200 and the mail server 400, but the firewall device 800 is arranged between the mail server 400 and the global such as the Internet. You may do it. That is, the mail server 400 may be arranged in a local network to which the computer 200 belongs. At this time, it is assumed that the firewall device 800 permits communication by electronic mail between the mail server 400 and a global network such as the Internet.

  The present invention has been described above by the preferred embodiments of the present invention. While the invention has been described with reference to specific embodiments thereof, various modifications and changes can be made to these embodiments without departing from the broader spirit and scope of the invention as defined in the claims. is there.

  For example, the processing operation in the above-described embodiment can be executed by hardware, software, or a combined configuration of both.

  When processing by software is executed, the program is loaded from a ROM (Read Only Memory) storing a program recording a processing sequence to a memory (RAM) in a computer incorporated in dedicated hardware. The program can be read and executed, or the program can be installed and executed on a general-purpose computer capable of executing various processes.

  For example, the program can be recorded in advance on a hard disk or ROM as a recording medium. Alternatively, the program is stored on a removable recording medium such as a magnetic disk such as a floppy (registered trademark) disk, an optical disk such as a CD (Compact Disc) or DVD (Digital Versatile Disc), or a magneto-optical disk such as an MO (Magneto Optical) disk. It is possible to store (record) temporarily or permanently.

  Such a removable recording medium can be provided as so-called package software.

  The program is installed on the computer from the above-described removable recording medium, transferred wirelessly from the download site to the computer, or transferred to the computer via a network such as a LAN (Local Area Network) or the Internet. On the other hand, the computer can receive the transferred program and install it on a recording medium such as a built-in hard disk.

  In addition to being executed in time series in accordance with the processing operations described in the above embodiment, the processing capability of the apparatus that executes the processing, or a configuration to execute in parallel or individually as necessary Is also possible.

DESCRIPTION OF SYMBOLS 100 Computer 110 Request communication log acquisition part 111 Request communication log acquisition means 112 E-mail production | generation means 120 E-mail automatic transmission / reception part 121 E-mail transmission means 122 E-mail reception means 130 Response communication log reproduction | regeneration part 131 E-mail decoding means 132 Response communication log Reproduction means 200 Computer 210 Automatic e-mail transmission / reception unit 211 E-mail reception means 212 E-mail transmission means 220 Request communication log reproduction section 221 E-mail decryption means 222 Request communication log reproduction means 223 Response communication log acquisition means 224 E-mail generation means 300 Mail Server 400 Mail server 500 Network device 600 Network device 700 Firewall device 800 Firewall device

Claims (6)

A network device setting system configured by connecting a first computer, a second computer, a first network device, and a second network device,
The first computer transmits a plurality of requests to the first network device, and receives a plurality of responses to each of the plurality of requests from the first network device, to the first network device. Network device setting means for performing a series of settings for
During the series of settings by the network device setting unit, the network device setting unit acquires a plurality of requests transmitted to the first network device and generates a request communication log by collecting the plurality of requests. A request communication log acquisition unit that generates a first response communication log by collecting a plurality of responses generated by the first network device in response to the request;
A first e-mail generation unit that converts the request communication log generated by the request communication log acquisition unit into an attached file and generates an e-mail attached with the attached file;
First e-mail transmission means for transmitting the e-mail generated by the first e-mail generation means to the second computer;
A comparison means;
Have
The second computer includes first e-mail receiving means for receiving the e-mail transmitted by the first e-mail transmitting means;
First e-mail decoding means for decoding the attached file attached to the e-mail received by the first e-mail receiving means and generating the request communication log;
Request communication log reproducing means for transmitting the plurality of requests included in the request communication log decrypted by the first electronic mail decrypting means to the second network device;
A plurality of responses to the plurality of requests transmitted to the second network device by the request communication log reproduction unit are acquired from the second network device, and the plurality of responses acquired are collected together as a second response communication log. Response communication log acquisition means for generating
Transmitting means for transmitting the second response communication log to the first computer;
Have
Said comparing means that compares the first response communication log, and said second response communication log the transmission means has transmitted
Network Equipment system comprising a call. The second computer further converts a response communication log generated by the response communication log acquisition unit into an attached file, and generates a second e-mail generating unit that attaches the attached file;
Second e-mail transmitting means for transmitting the e-mail generated by the second e-mail generating means to the first computer;
Have
The first computer is
Second e-mail receiving means for receiving the e-mail transmitted by the second e-mail transmitting means;
A second e-mail decoding unit that decodes an attached file attached to the e-mail received by the second e-mail receiving unit and generates the response communication log;
Response communication log reproducing means for transmitting the plurality of responses included in the response communication log generated by the second e-mail decrypting means to the network device setting means;
The network device setting system according to claim 1, further comprising: A network device setting system to which a firewall device is also connected,
The firewall device is disposed between the first computer and the second computer, restricts transmission / reception of information between the first computer and the second computer, and 3. The network device setting system according to claim 2, wherein transmission / reception of an electronic mail between the second computers is permitted. The network device setting means transmits the plurality of requests transmitted to the first network device also to the response communication log reproduction means,
The response communication log reproduction means receives the request transmitted by the network device setting means, and responds to the received request using the response communication log generated by the second e-mail decryption means. The network device setting system according to claim 2 or 3, wherein a response is transmitted to the network device setting means. By the first computer, by the first network device sends a plurality of requests, receiving a plurality of responses to each the plurality of requests from a first network device, a set for the first network device Network device setting step for setting
During the series of settings in the network device setting step, a plurality of requests transmitted to the first network device in the network device setting step are acquired, and a request communication log is generated by collecting the plurality of requests. And a request communication log acquisition step of generating a first response communication log by collecting a plurality of responses generated by the first network device in response to the request;
A first e-mail generation step of converting the request communication log generated in the request communication log acquisition step into an attached file and generating an e-mail attached with the attached file;
A first e-mail transmission step of transmitting the e-mail generated by the first e-mail generation step to a second computer;
A comparing step, and
A first e-mail receiving step for receiving the e-mail sent by the first e-mail sending step by the second computer;
A first e-mail decrypting step of decrypting an attached file attached to the e-mail received by the first e-mail receiving step and generating the request communication log;
A request communication log reproduction step of transmitting the plurality of requests included in the request communication log decrypted by the first electronic mail decryption step to a second network device;
A plurality of responses to the plurality of requests transmitted to the second network device by the request communication log reproduction unit are acquired from the second network device, and the plurality of responses acquired are collected together as a second response communication log. A response communication log acquisition step for generating
A transmission step of transmitting the second response communication log to the first computer ;
Have
In the comparing step, you compare the first response communication log, and said second response communication log transmitted in said transmitting step
Network Equipment wherein a call. A first computer, by sending multiple requests to the first network device receives a plurality of response to each the plurality of requests from a first network device, a set for the first network device Network device setting means for setting
During the series of settings by the network device setting unit, the network device setting unit acquires a plurality of requests transmitted to the first network device and generates a request communication log by collecting the plurality of requests. A request communication log acquisition unit that generates a first response communication log by collecting a plurality of responses generated by the first network device in response to the request;
A first e-mail generation unit that converts the request communication log generated by the request communication log acquisition unit into an attached file and generates an e-mail attached with the attached file;
First e-mail transmission means for transmitting the e-mail generated by the first e-mail generation means to a second computer;
Function as a means of comparison ,
First e-mail receiving means for receiving the e-mail transmitted by the first e-mail transmitting means, the second computer;
First e-mail decoding means for decoding the attached file attached to the e-mail received by the first e-mail receiving means and generating the request communication log;
Request communication log reproducing means for transmitting the plurality of requests included in the request communication log decrypted by the first electronic mail decrypting means to a second network device;
A plurality of responses to the plurality of requests transmitted to the second network device by the request communication log reproduction unit are acquired from the second network device, and the plurality of responses acquired are collected together as a second response communication log. Response communication log acquisition means for generating
Transmitting means for transmitting the second response communication log to the first computer;
To function,
In the comparison means, that compares the first response communication log, and said second response communication log transmitted in the transmission unit
Program which is characterized a call.

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