JP4515478B2 - IP address management system - Google Patents

Description

  The present invention relates to an IP address management system that manages an IP address assigned to a communication device such as a computer device that communicates via a network.

  An IP address is assigned to a communication device such as a client computer device, a server, or a router that communicates via an IP (Internet Protocol) network constructed in a specific group such as a company. Since this IP address must be uniquely assigned to each communication device, management of the IP address becomes complicated as the number of communication devices connected to the network increases. When there are a plurality of sub-networks in the group and an IP address is assigned to each sub-network, it is necessary to collect and manage information on all the IP addresses used in the entire group. It will be something.

Several IP address management systems for managing the IP addresses have been proposed. For example, in Patent Document 1, when the master definition information (host IP address and host name) is updated on the system management host, the IP address configuration information of the managed host including the system management host is updated and connected to the network. An IP address management system that updates the definition information of the IP addresses of all the hosts that have been disclosed is disclosed. Patent Document 2 searches for the usage status of an IP address within a management range used by a communication device on a network, saves the search result in a file, and sets the IP address obtained by the search. An address management device that displays a list of usage statuses on a screen is disclosed.
Japanese Patent Application Laid-Open No. 11-074901 JP 2002-223212 A

  However, in the above conventional IP address management system and address management device, the IP address configuration information and IP address definition information are updated online for the subnetwork before the start of use such as the subnetwork under construction, or the IP address Since the usage status cannot be searched, it is difficult to manage the IP address of the subnetwork.

  The present invention has been made in view of the above problems, and its purpose is not only to use IP addresses used in sub-networks that have already been used, but also to use in sub-networks before the start of use, such as sub-networks that are being constructed. An IP address management system capable of easily and collectively managing planned IP addresses is also provided.

An IP address management system according to the present invention includes an information storage unit, an information transmission / reception unit for transmitting / receiving information to / from a communication terminal device via a network, and an IP address received from the communication terminal device by the information transmission / reception unit. The online information storage means for storing the allocation information in the information storage means in association with the identification information of the subnetwork in which the IP address is used, and the IP address read from the file stored in the predetermined storage medium Offline information storage means for storing the allocation information in the information storage means in association with identification information of the subnetwork in which the IP address is used.
In this IP address management system, the online information storage means stores the IP address assignment information received from the communication terminal apparatus via the network in the information storage means in association with the identification information of the subnetwork in which the IP address is used. Therefore, IP address assignment information can be registered online from the communication terminal device via the network. The offline information storage unit stores the IP address assignment information read from the file stored in a predetermined storage medium in the information storage unit in association with the identification information of the subnetwork in which the IP address is used. Therefore, the IP address assignment information can be registered offline via a file stored in the storage medium. Moreover, in any of the above-described online registration and offline registration, the subnetwork using the registration target IP address does not necessarily need to be started. It may be a subnetwork.

In the IP address management system, the offline information storage means may receive IP address assignment information read from a file in a predetermined storage medium from the communication terminal device.
Further, in the IP address management system, the offline information storage means may read the IP address assignment information from a file in a predetermined storage medium.
The IP address management system may further include file output means for generating a file in which the IP address assignment information is written and outputting the file to a predetermined storage medium.
Further, in the IP address management system, the file output means may write IP address allocation information already registered for a specified subnetwork in a file to be output. In this case, a file in which IP address allocation information before correction that has already been registered is read is once read from the recording medium, and the IP address allocation information written in the file is updated to the latest IP address allocation status. It is updated by adding / modifying / deleting to match. Then, the file in which the updated IP address assignment information is written is stored in a storage medium.
The IP address management system may further include file transmission means for generating a file in which the IP address assignment information is written and transmitting the file to the communication terminal device.

In the IP address management system, the IP address assignment information includes an IP address assigned to a plurality of communication devices used in the sub-network, an identification name of the communication device, and type information of the communication device. There may be.
In the IP address management system, the IP address allocation information may be segment information that specifies an IP address allocation range. In this case, an IP address issue request including the segment information is received, an IP address is assigned within the range specified by the segment information based on the IP address issue request, and the IP address assignment information is stored in the information storage It may be stored in the means.
In the IP address management system, the IP address assignment information may be IP address assignment information converted by an IP address conversion device so as to correspond to an IP address used in the subnetwork.
In the IP address management system, the IP address assignment information may include status information indicating a use state of the IP address.

In the IP address management system, the information transmission / reception means may transmit data of an information input screen to the communication terminal device for inputting IP address assignment information online. In this case, IP address assignment information input from the information input screen displayed on the communication terminal apparatus is received from the communication terminal apparatus via the network.
In the IP address management system, a response request is transmitted to the IP address of the communication device connected to the network based on the IP address stored in the information storage means, and the response result from the communication device Further, information update means for updating the status information stored in the information storage means may be further provided.
In the IP address management system, the IP address allocation information may be received from a DHCP (Dynamic Host Configuration Protocol) server provided in the subnetwork.

An IP address management method according to the present invention is an IP address management method for managing IP addresses of communication devices used in a plurality of sub-networks connected to each other, and information on allocation of IP addresses used in the sub-networks Is received from the communication terminal device via the network, and the IP address assignment information received from the communication terminal device is stored in the information storage means in association with the identification information of the subnetwork in which the IP address is used. Storing the IP address assignment information read from a file stored in a predetermined storage medium in the information storage unit in association with the identification information of the subnetwork in which the IP address is used. including.
The IP address management method may further include a step of receiving, from the communication terminal apparatus, IP address assignment information read from a file in a predetermined storage medium.
The IP address management method may further include a step of reading the IP address assignment information from a file in a predetermined storage medium.
The IP address management method may further include a step of generating a file in which the IP address assignment information is written and outputting the file to a predetermined storage medium.
The IP address management method may further include a step of writing IP address assignment information already registered for a specified subnetwork in an output target file.
In the IP address management method, the IP address assignment information includes an IP address assigned to a plurality of communication devices used in the sub-network, an identification name of the communication device, and type information of the communication device. There may be.
In the IP address management method, the IP address assignment information may be segment information for designating an IP address assignment range. In this case, an IP address issue request including the segment information is received, an IP address is assigned within a range specified by the segment information based on the IP address issue request, and the IP address assignment information is stored in the information storage. It may be stored in the means.
In the IP address management method, the IP address assignment information may be IP address assignment information converted by an IP address conversion device so as to correspond to an IP address used in the subnetwork.
In the IP address management method, the IP address assignment information may include status information indicating a use state of the IP address.
The IP address management method may further include a step of transmitting data of an information input screen to the communication terminal device for inputting IP address assignment information online.
In the IP address management method, a response request is transmitted to the IP address of the communication device connected to the network based on the IP address stored in the information storage means, and the response result from the communication device And updating the status information stored in the information storage means based on the above.
In the IP address management method, the IP address assignment information may be received from a DHCP (Dynamic Host Configuration Protocol) server provided in the subnetwork.

A program according to the present invention is a program that is executed by being incorporated in a computer or a controller constituting an IP address management system that manages IP addresses of communication devices used in a plurality of sub-networks connected to each other, Receiving IP address assignment information used in the sub-network from the communication terminal device via the network; and sub-network using the IP address assignment information received from the communication terminal device. Storing in the information storage means in association with the identification information, reading the file in which the IP address allocation information used in the subnetwork is written from the recording medium, and from the file read from the recording medium, IP address Removed allocation information, in association with identification information of the sub-network to which the IP address is used, and a step of storing in the information storage unit, causes the computer to perform or controller.
In the IP address management method, the computer or controller may further execute a step of receiving, from the communication terminal device, IP address assignment information read from a file in a predetermined storage medium.
In the IP address management method, the step of reading the IP address assignment information from a file in a predetermined storage medium may be further executed by the computer or the controller.
In the IP address management method, the computer or the controller may further execute a step of generating a file in which the IP address assignment information is written and outputting the file to a predetermined storage medium.
In the IP address management method, the computer or controller may further execute a step of writing IP address allocation information already registered for a specified subnetwork to an output target file.
In the program, the IP address assignment information may include an IP address assigned to a plurality of communication devices used in the sub-network, an identification name of the communication device, and type information of the communication device. Good.
In the program, the IP address assignment information may be segment information that specifies an IP address assignment range. In this case, an IP address issue request including the segment information is received, an IP address is assigned within a range specified by the segment information based on the IP address issue request, and the IP address assignment information is stored in the information storage. It may be stored in the means.
In the program, the IP address assignment information may be IP address assignment information converted by an IP address conversion device so as to correspond to an IP address used in the subnetwork.
In the program, the IP address assignment information may include status information indicating a use state of the IP address.
In the program, the computer or controller may further execute a step of transmitting data on an information input screen to the communication terminal device for inputting IP address assignment information online.
Further, in the program, based on the IP address stored in the information storage means, a response request is transmitted to the IP address of the communication device connected to the network, and based on the response result from the communication device. The step of updating the status information stored in the information storage means may be further executed by the computer or the controller.
In the program, the IP address assignment information may be received from a DHCP (Dynamic Host Configuration Protocol) server provided in the subnetwork.

  According to the present invention, it is possible to register IP address assignment information used in a sub-network online from a communication terminal device via a network, or offline registration via a file stored in a storage medium. Moreover, in any of the above-described online registration and offline registration, the subnetwork using the registration target IP address does not necessarily need to be started. It may be a subnetwork. Therefore, not only the IP address used in the subnetwork that has already been used, but also the IP address that is scheduled to be used in the subnetwork before the start of use, such as a subnetwork that is being constructed, can be easily and collectively managed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an explanatory diagram showing an example of a schematic configuration of an IP address management system according to an embodiment of the present invention. The IP address management system 10 includes an IP address management DB (database) 100, and a plurality of sub-networks 30A, 30B, 30C of a plurality of bases A, B, C connected to form a single network as a whole. Connected to any one of them. In the example of FIG. 1, it is connected to the subnetwork 30A. The base A subnetwork 30A and the subnetworks 30B and 30C of the bases B and C are connected via communication relay devices 31AB, 31B, 31AC, and 31C such as routers. These communication relay devices may have a function of converting an IP address between relaying sub-networks. The network between these bases can be constituted by, for example, an IP-VPN (Virtual Private Network) or a wide-area Ethernet (Wide-Ethernet) network. Further, the subnetwork 30D of the site D in the figure is under construction and is not yet connected to the site A subnetwork 30A. When the construction work is completed, the sub-network 30D of the base D is connected to the base A sub-network 30A and can communicate with the sub-networks 30A, 30B, and 30C. In addition to the communication relay devices 31AB, 31B, 31AC, 31C, the sub-networks 30A, 30B, 30C, 30D at each site include communication terminal devices 20A, such as various servers not shown, client computer devices, and the like. Communication devices such as 20B, 20C, and 20D are connected. There may be one or more client communication terminal devices connected to each sub-network. Note that the sub-networks 30B, 30C, and 30D of the bases B, C, and D may be directly connected to each other. Moreover, although this embodiment demonstrates the case where there are four bases, this invention is applicable, without being restrict | limited to the number of bases.

  FIG. 2 is a block diagram showing the main functions of the IP address management system 10. The IP address management system 10 can be configured by, for example, a computer device having a CPU, a memory (RAM, ROM, etc.), an external storage device such as an HD, and an external communication unit such as Ethernet (registered trademark). The IP address management system 10 includes, for example, basic software (OS: Operating System) and predetermined application programs such as a database server function and communication function in a computer that is hardware, and is executed. Functions such as the database 100 as information storage means that can be accessed and searched from the communication terminal device, information transmission / reception means 101, online information storage means 102, file extraction means 103, offline information storage means 104, and the like can be realized.

  The IP address management system 10 may be configured by a single computer device, or may be configured to operate in cooperation with a plurality of computer devices connected to a network.

  The database 100 is constructed using a database application program, and is based on a data table including the tables shown in Tables 1 to 4, a registration / search table, and a command from a communication terminal device of each subnetwork. A library of subprograms for executing various processes such as registration and search is stored.

  Table 1 is a master table in which IP addresses used in each sub-network in the entire network to be managed and information related thereto are stored.

  As shown in Table 1, the IP address master table includes an IP address, a subnet mask, a type code, a name, an interface, and a MAC address (Media Access) for each record specified by the IP code. Control address), site code, remarks, update date, updater, use flag as status information, etc. are stored. The “name” is an identification name (for example, host name) of a communication device to which the IP address is assigned. The “use flag” is an identification number of status information indicating the use state of the IP address.

  The master table of IP addresses in Table 1 is linked to the segment master table described later via an ID code, thereby associating the IP addresses related to each other with the segment information of the subnetwork in which the IP address is used. It is done. The IP address master table is linked to a type table, which will be described later, via a type code, and associates the IP address with the type of communication device to which the IP address is assigned. The IP address master table is linked to a base table, which will be described later, via a base code, and associates the IP address with a base where the IP address is used.

  Tables 2 and 3 are tables of types and bases of communication devices, respectively. As types of communication devices, for example, network devices, servers, clients, printers, NAT (Network Address Translation) virtual segments, HSRP / VRRP, VIP, and the like can be registered. Here, the communication device to which “NAT virtual segment” is input as the type is a NAT device (IP address conversion device) that converts the IP address between the inside and the outside of the subnetwork, and the router may also be used. Many. Note that the IP address management system of this embodiment may accept input and browsing of internal and external IP addresses converted by the NAT device from the communication terminal device. For example, an IP address management system is accessed from a communication terminal device and a NAT information input screen is displayed. On the NAT information input screen, an internal IP address and an external address that are mutually converted by the NAT device for the sub-network to be registered are displayed. Enter the IP address. The IP address management system receives the input internal IP address and external IP address from the communication terminal device, and stores them in the database 100 in association with each other. When a button on a predetermined menu screen is pressed from the communication terminal device and a browsing request for IP address conversion information is received, the IP address management system, for the specified subnetwork, the internal IP address before and after conversion and the external IP address Is transmitted to the communication terminal device.

  Table 4 is a master table in which segments of IP addresses assigned by the respective sub-networks in the entire network to be managed and information related thereto are stored.

  The function of the information transmission / reception means 101 is realized by, for example, executing a Web server program on a computer. The information transmission / reception means 101 receives a menu screen request for requesting a menu screen for IP address management from the browser of the communication terminal device of the client via the network, for example, and, for example, as shown in FIG. Such menu screen data is transmitted to the communication terminal device of the client.

  When “IP address search” 501 is clicked and selected on the menu screen of FIG. 3, the information transmitting / receiving means 101, for example, the Web of any of the communication terminal devices 20A, 20B, and 20C of the clients of the bases A, B, and C A search screen request for requesting an IP address search screen is received from the browser via the network, and in response to the search screen request, for example, IP address search screen data as shown in FIG. 4 is transmitted to the communication terminal device of the client. . When the search condition is entered on the IP address search screen of FIG. 4 and the “search” button 510 is selected, the information transmitting / receiving means 101 is searched with the specified search condition from the browser of the client communication terminal device via the network. A search request for requesting an IP address list (search result) is received, and in response to the search request, for example, data of an IP address list screen of the search result as shown in FIG. 5 is transmitted to the communication terminal device of the client.

  When “Segment Search” 502 is clicked and selected on the menu screen of FIG. 3, the information transmission / reception means 101 is, for example, a web browser of any of the communication terminal devices 20A, 20B, and 20C of the clients of the bases A, B, and C. A search screen request for requesting a segment search screen is received via the network, and in response to the search screen request, for example, segment search screen data as shown in FIG. 6 is transmitted to the communication terminal device of the client. When the search condition is input on the segment search screen of FIG. 6 and the “search” button 520 is selected, the information transmitting / receiving unit 101 searches the segment searched for with the specified search condition via the network from the browser of the client communication terminal device. A search request for requesting a list (search result) is received, and in response to the search request, for example, data of a segment list screen of search results as shown in FIG. 7 is transmitted to the communication terminal device of the client. When the “query transmission” button 530 in the “IP display button” column of each segment is clicked on the segment list screen of FIG. 7, a screen request for requesting a list screen of IP addresses assigned to the segment is issued. In response to the screen request, the information transmitting / receiving unit 101 transmits data of a list screen of IP addresses assigned to the segment to the communication terminal device of the client.

  When “add segment” 503 is clicked and selected on the menu screen of FIG. 3, the information transmission / reception means 101, for example, the web browser of any of the communication terminal devices 20A, 20B, and 20C of the clients of the bases A, B, and C Receives a screen request for requesting a screen for adding a segment from the network, and, in response to the screen request, for example, adds a segment addition screen data for online addition of a segment as shown in FIG. Send to device. When the “add” button 540 is clicked after the data of each item is input on the segment addition screen in FIG. 8, the information transmitting / receiving unit 101 receives the data of each item of the segment from the communication terminal device. The data is transferred to the online information storage unit 102 described later.

  When the “IP address registration contents batch change” 504 is clicked and selected on the menu screen of FIG. 3, the information transmitting / receiving means 101 can select any of the communication terminal devices 20A, 20B, 20C of the clients of the bases A, B, C, for example. A screen request for requesting the IP address registration content batch change screen is received from the Web browser via the network, and in response to the segment screen request, for example, the IP address registration content batch change screen shown in FIG. Data is transmitted to the communication terminal device of the client.

  When the “file / export” button 550 is clicked on the IP address registration contents batch change screen in FIG. 9, the communication terminal device, for example, the IP address list data in the designated range additionally edited as shown in FIG. Is converted into a file of a predetermined format (for example, a csv file) that can be easily imported into the database 100, and the converted file is converted into a predetermined file. Save to a folder.

  When the “file / export” button 550 is clicked on the IP address registration contents batch change screen of FIG. 9, the communication terminal device, for example, an IP address in a designated range that is assigned or not assigned as shown in FIG. A file in a predetermined format in which list data is written (for example, an xls file that can be easily added / edited) is converted into a file in a predetermined format that is easy to import into the database 100 (for example, a csv file). Save the file in the specified folder. The “update” column in the list of FIG. 10 is a column for inputting data for identifying addition / change of any of the type, name, interface, MAC address, and remarks regarding the IP address. . In this column, for example, “◯” is input when the information is added or changed, and “X” is input when the information is not added or changed. The data in the “update” column can be used when the list information of FIG.

  When the file to which the data shown in FIG. 10 is written and the “file import” button 560 is clicked on the IP address registration contents batch change screen shown in FIG. The specified file (for example, a csv file) is taken out from the folder of the recording medium, and the IP address assignment information read from the file is saved in the database 100 by the offline information saving means 104 described later.

  The online information storage unit 102 is realized, for example, by executing a database server program for managing the database 100 by a computer. This online information storage means 102 uses the information transmission / reception means 101 to obtain the IP address information of each item of the segment to be added from any of the communication terminal devices 20A, 20B, 20C of the clients of the bases A, B, C. When received as allocation information, the information of the additional segment is received from the information transmitting / receiving means 101. The online information storage unit 102 stores the additional segment information received from the information transmission / reception unit 101 in the database 100 in association with the base information (base code) as the sub-network identification information.

  The file retrieval unit 103 is realized by, for example, executing various driver programs or the like for performing retrieval processing of a file stored in the above-described recording medium (for example, HD, FD, optical disk, memory card) on a computer. The When the recording medium is a recording medium (for example, FD, optical disk, memory card) that is detachable from the communication terminal device, the file retrieval unit 103 includes a drive device in which the recording medium is mounted. The file retrieval means 103 designates the file (for example, csv file) in which the data in FIG. 10 is written and clicks the “File Import” button 560 on the IP address registration contents batch change screen in FIG. When this is done, the specified file (for example, csv file) is taken out from the folder of the specified recording medium, and transferred to the offline information storage means 104.

  The offline information storage unit 104 is realized, for example, by executing a database server program for managing the database 100 by a computer. For example, the offline information storage unit 104 specifies a file on the IP address registration contents batch change screen shown in FIG. 9 and clicks the “file import” button 560, and from the file extracted by the file extraction unit 103. The IP address allocation information illustrated in FIG. 10 is read out and stored in the database 100.

  FIG. 11 is a flowchart showing an example of processing for reading IP address assignment information from a file and taking it into the database 100 at a certain site. In the processing example of FIG. 11, the person in charge of managing the subnetwork at the base first requests the general manager to pay out the segment of the IP address used in the subnetwork and confirm the usage status (S1). Next, IP addresses are assigned (paid out) to communication devices in the sub-network for unused segments, and information on each item shown in FIG. 10 is input to an editing file (for example, an xls file) ( S2). Next, when the segment is registered for the first time (Yes in S3), the “Update” column is set to “O” for all the IP addresses issued, and “File Export” is displayed on the screen of FIG. By clicking and selecting the button 550, the data is output to a file (eg, csv file) in a predetermined format for database import (S4, S5). On the other hand, when the registration of the segment is not the first time (No in S3), the “update” column is set to “◯” only for the IP address in which the registration information is updated among the above IP addresses, and “ "File Export" is executed (S6, S5).

  Next, when the output to the file for database import is completed normally (Yes in S7), by clicking the “File Import” button 560 on the screen of FIG. The IP address assignment information is read from the file (for example, csv file) and transmitted to the IP address management system 10 (S8). Thereby, the IP address assignment information is taken into the database 100 in association with the identification information of the base. On the other hand, if the output to the database import file has not been completed normally (No in S7), the report is sent to the general manager to request an investigation, and the process is stopped (S9, S10). Even when the IP address assignment information is not taken in normally (No in S11), the report is sent to the general manager to request an investigation, and the processing is stopped (S9, S10).

  Next, when the IP address assignment information has been fetched normally (Yes in S11), the data of each item of the fetched IP address assignment information is confirmed, and the data is correct (S12). Yes) ends the process. On the other hand, if there is an error in any of the data of each item of the assigned IP address assignment information (No in S12), the correction is requested to the IP address management system 10 and the process is terminated (Yes in S13, S14). ). If it cannot be corrected to the IP address management system 10 side (No in S13), the data of the editing file (for example, xls file) is corrected and the process is repeated from S6 (S15).

  FIG. 12 is a flowchart showing an example of processing when a request for paying out an IP address is received in a sub-network of a certain base. In the processing example of FIG. 12, first, when the person in charge of the subnetwork receives a request for paying out an IP address, it is determined whether or not a segment is specified in the request content (S1, S2). If a segment is designated (Yes in S2), an IP address is searched and an IP address whose status information is “unused” is selected (S3, S4). On the other hand, when a segment is not specified (No in S2), the segment is searched, and an IP address is selected for a segment whose status information is “unused” (S5, S4). Next, by performing Ping transmission for the selected IP address, it is confirmed whether or not the IP address is actually used, and if it is reconfirmed that there is no Ping response and is not used (S6 In Yes), information such as the identification name of the communication device is input for the IP address, the status information is changed to “in use” (S8), and the IP address is paid to the requester (S9). On the other hand, if there is a Ping response and it is used (No in S6), another IP address whose status information is “unused” is selected, and the confirmation by the Ping transmission is repeated (S7, S6). ).

  FIG. 13 is a flowchart showing an example of processing when there is a return request for a paid-out IP address in a sub-network at a certain base. In the processing example of FIG. 13, first, when a person in charge of the subnetwork receives a request for returning a paid-out IP address (S1), by performing a Ping transmission for the managed IP address, It is confirmed whether or not the IP address is actually used (S2). Here, when there is no Ping response and it can be reconfirmed that it is unused (Yes in S2), the status information for the IP address is changed to “unused” (S3), and the IP address is sent to the requester. Informs that the address assignment has been deleted (S4). On the other hand, when there is a Ping response and it has been used (No in S2), confirmation with the user in use is repeated and the confirmation by the Ping transmission is repeated (S5, S2).

  FIG. 14 shows a manager in charge of the subnetwork A who has the viewing authority for the IP address management system 10 (hereinafter referred to as “manager A”) and a manager in charge of the subnetwork D who does not have the authority to browse (hereinafter, referred to as “manager A”). 7 is a flowchart showing an example of processing when a new IP address of the sub-network D is paid out in cooperation with “administrator D”. In the processing example of FIG. 14, first, the manager A accesses the IP address management system 10 to perform segment payout processing, and at the same time, prepares an editing file (for example, xls file) for assigning the IP address described above. Prepare (S1) and lend the prepared editing file to the manager D. Next, the manager in charge D selects and pays out an IP address to be used in the sub-network D based on the designated segment, inputs the IP address assignment information to an editing file, and updates each IP address with “Update”. "" Is set to "O" (S2), and the edited file is returned to the manager A. Next, the manager A accesses the IP address management system 10 and converts the editing file received from the manager D into a database import file (for example, a csv file), and then reads the IP address read from the file. Is assigned to the database 100 (S3).

  FIG. 15 shows that the manager A in the subnetwork A who has the browsing authority for the IP address management system 10 and the manager D in the subnetwork D who does not have the browsing authority cooperate with each other in the subnetwork D. It is a flowchart which shows an example of a process when addition / change occurs in an IP address. In the processing example of FIG. 15, first, the manager A accesses the IP address management system 10 and an editing file (for example, an xls file) in which the IP address assignment information assigned to the subnetwork D is written. Is output (S1), and the output editing file is lent to the manager D. Next, the person in charge of management D inputs the data of the part that has been added / changed into the editing file, and sets the “update” column to “◯” only for the IP address that has been added / changed (S2). Return the edited file to the manager A. Next, the manager A accesses the IP address management system 10 and converts the editing file received from the manager D into a database import file (for example, a csv file), and then reads the IP address read from the file. Is assigned to the database 100 (S3).

  As described above, according to the present embodiment, among the sub-networks 30A to 30D that are connected so as to be communicable so as to form one network as a whole, the sub-networks 30A to 30C that have started to be used are the sub-networks. IP address assignment information for a plurality of communication devices to be used is received and acquired online from the communication terminal devices 20A to 20C via the network, and stored and registered in the database 100 in association with the identification information of the subnetwork. can do. The allocation information of the IP address scheduled to be used in the subnetwork 30D before the start of use, such as the subnetwork under construction, may be received from the communication terminal devices of the other subnetworks 30A to 30C that have been used. In addition, for all the sub-networks 30A to 30D including the sub-network 30D before the start of use such as a sub-network being constructed, a file in which assignment information of IP addresses for a plurality of communication devices used in each sub-network is written Can be taken out from the recording medium (for example, HD, FD, optical disc, memory card), the IP address assignment information can be read from the file, obtained offline, and stored in the database 100 in association with the sub-network identification information. . In this way, IP address assignment information can be acquired online and offline, stored in the same database 100 in association with the identification information of the subnetwork, and registered. Moreover, in any of the above-described online registration and offline registration, the subnetwork using the registration target IP address does not necessarily need to be started. It may be a subnetwork. Accordingly, not only the IP addresses used in the subnetworks 30A to 30C that have been used, but also the IP addresses scheduled to be used in the subnetwork 30D before the start of use such as the subnetwork being constructed can be collectively managed in the database 100. .

  In particular, the online registration is performed directly from the information input screen of the communication terminal device to the database 100 of the IP address management system 10 via the network in the case of simple information change / addition in each of the sub-networks 30A to 30D. It is excellent in terms of simplicity of changing IP address allocation information, etc., and immediacy of information reflection.

  In addition, in the offline registration, when a large amount of information needs to be added / updated at once, such as a subnetwork under construction, the information created on the file can be reflected in the database 100 of the IP address management system 10 all at once. The point is excellent. In addition, in the offline registration, even if the sub-network administrator or builder cannot access the IP address management system 10 via the network or does not have the authority to register IP address assignment information, it is recorded. IP address assignment information can be saved in the database 100 and registered via a file saved on the medium. In this case, the administrator or builder of the subnetwork writes the allocation information of the registration target IP address in the file. This file is stored in a predetermined recording medium (for example, HD, FD, optical disc, memory card). Then, a predetermined administrator or operator who can access the IP address management system 10 reads the file from the recording medium, and assigns the IP address assignment information read from the file to the identification of the subnetwork in which the IP address is used. A process of registering in the database 100 in association with the information is performed.

  Further, according to the present embodiment, when obtaining and storing the IP address assignment information offline, the IP address assignment information can be added or changed on the file without accessing the IP address management system 10. As a result, it is possible to edit a plurality of items and the number of cases on one screen, or a plurality of managers can simultaneously edit, and work efficiency can be improved. In addition, the file stored in the storage medium can be edited by a person who does not have access authority to the IP address management system 10, such as a development contractor, so that the person who has access authority can re-edit the file. This eliminates the need for input errors and increases the efficiency of management operations.

The preferred embodiments of the present invention have been described above, but various modifications can be made to the disclosed embodiments within the scope of the technical matters described in the claims. For example, the process of writing the IP address assignment information into the file or reading it from the file may be executed on the IP address management device side or the communication terminal device side.
Further, based on the IP address stored in the database 100, a response request such as Ping is transmitted to the IP address of the communication device connected to the sub-networks 30A to 30C, and the response result from the communication device is sent. Based on the status information, the status information stored in the database 100 may be updated. The IP address assignment information may be received at a predetermined timing from a DHCP (Dynamic Host Configuration Protocol) server provided in each of the sub-networks 30A to 30C.

BRIEF DESCRIPTION OF THE DRAWINGS Explanatory drawing which shows an example of schematic structure of the IP address management system which concerns on one Embodiment of this invention. The block diagram which shows the main functions of an IP address management system. Explanatory drawing which shows an example of the menu screen of IP address management. Explanatory drawing which shows an example in an IP address search screen. Explanatory drawing which shows an example of the screen of an IP address search result. Explanatory drawing which shows an example of a segment search screen. Explanatory drawing which shows an example of the screen of a segment search result. Explanatory drawing which shows an example of a segment addition screen. Explanatory drawing which shows an example of the screen of IP address registration content batch change. Explanatory drawing which shows the IP address list of the file for edit. 10 is a flowchart illustrating an example of an IP address assignment information capturing process. The flowchart which shows an example of a process when the request | requirement of discharge of an IP address is received. The flowchart which shows an example of a process when there is a return request of the IP address which has been paid out. When the management person A of the subnetwork A who has the viewing authority for the IP address management system 10 and the management person D of the subnetwork D who does not have the viewing authority cooperate with each other to pay out the IP address of the subnetwork D The flowchart which shows an example of a process. The management person A in the subnetwork A who has the viewing authority for the IP address management system 10 and the management person D in the subnetwork D who has no viewing authority cooperate to add to the IP address used in the subnetwork D. The flowchart which shows an example of a process when a change generate | occur | produces.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 IP address management system 20 Communication terminal device 30A-30D Subnetwork 100 Database

Claims (10)

An IP address management system for managing IP addresses of communication devices used in a plurality of sub-networks,
Information storage means;
Information transmitting and receiving means for transmitting and receiving information to and from a communication terminal device via a network;
Online information storage means for storing the IP address assignment information received from the communication terminal device by the information transmission / reception means in the information storage means in association with identification information of a subnetwork in which the IP address is used;
Offline information storage means for storing in the information storage means the IP address allocation information read from a file stored in a predetermined storage medium in association with identification information of a subnetwork in which the IP address is used;
An IP address management system comprising: The IP address management system according to claim 1,
The offline information storage means receives IP address assignment information read from a file in a predetermined storage medium from the communication terminal device. The IP address management system according to claim 1,
The offline information storage means reads the IP address assignment information from a file in a predetermined storage medium. In the IP address management system according to any one of claims 1 to 3,
An IP address management system, further comprising file output means for generating a file in which the IP address allocation information is written and outputting the file to a predetermined storage medium. In the IP address management system according to claim 4,
The file output means writes IP address allocation information already registered for a specified subnetwork to an output target file. In the IP address management system according to any one of claims 1 to 3,
An IP address management system, further comprising file transmission means for generating a file to which the IP address allocation information is written and transmitting the file to the communication terminal device. In the IP address management system according to any one of claims 1 to 6,
The IP address assignment information includes an IP address assigned to a plurality of communication devices used in the sub-network, an identification name of the communication device, and type information of the communication device. . In the IP address management system according to any one of claims 1 to 6,
The IP address management system, wherein the IP address allocation information is segment information for designating an IP address allocation range. In the IP address management system according to any one of claims 1 to 8,
The IP address management system, wherein the IP address assignment information is IP address assignment information converted by an IP address conversion device so as to correspond to an IP address used in the subnetwork. In the IP address management system according to any one of claims 1 to 9,
The IP address management system, wherein the IP address allocation information includes status information indicating a usage state of the IP address.

Images