KR20200068971A - Method and system for providing static IP service - Google Patents

Abstract

The present invention relates to a static IP service providing method to provide a static IP address setting using dynamic host configuration protocol (DHCP) to a predetermined subscriber terminal of an Internet service provider (ISP). According to one embodiment of the present invention, the static IP service providing method allows a system of the ISP to provide the static IP setting and an Internet access service to a terminal of a subscriber subscribed for a static IP service. The method comprises: a setting step of authenticating a subscriber terminal accessing the system and setting a DHCP server to match media access control (MAC) information of the authenticated terminal with a static IP address; and an IP allocation step of, when the terminal requests IP address allocation or update while transmitting the MAC information by using the DHCP, allowing the DHCP server to transmit the static IP address matched with the MAC information to the terminal to allocate the static IP address.

Description

Method and system for providing static IP service

The present invention relates to a method and apparatus for providing a static IP service, and more particularly, to provide a static IP service by using DHCP as a specific subscriber terminal of an Internet service provider (hereinafter referred to as “ISP”). It relates to a method and its system.

The ISP system provides a means to access the Internet with its subscriber terminal. At this time, in order to access the Internet, the subscriber station is set with an IP address using a dynamic IP address method or a fixed IP address method.

The dynamic IP address method is a method of setting an IP address by using a dynamic host configuration protocol (hereinafter referred to as “DHCP”). A DHCP server uses a temporary IP address that can be used as a subscriber terminal connected to it. To deliver. That is, the dynamic IP address method is a method in which a subscriber terminal can have a changed IP address every time it is accessed.

On the other hand, the fixed IP address method is a method in which a constant public IP address that is not changed is set in the subscriber station. However, the conventional fixed IP address method is a method in which an administrator or subscriber of an ISP has to manually input and set a fixed IP address in a subscriber terminal, and thus there is a problem in that setting can be inconvenient and inaccurate.

In particular, in the ISP system, only when a DHCP packet from a subscriber terminal occurs, a broadband network gateway (hereinafter referred to as “BNG”) can manage sessions of the corresponding subscriber terminal and manage usage. And policy control. However, since the conventional fixed IP address setting method is a method of manually setting a static IP without using DHCP, session management for each subscriber terminal in an ISP system is impossible, and accordingly, usage management and policy control are also impossible. .

In order to solve the problems of the prior art as described above, the present invention provides a fixed IP address setting method using DHCP as a specific subscriber terminal of an ISP and a method and system for providing the fixed IP service providing the Internet access service accordingly. It has a purpose.

However, the problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

A method of providing a static IP service according to an embodiment of the present invention for solving the above problems is a method of providing a fixed IP setting and Internet access service to a terminal of a subscriber subscribed to a fixed IP service by an ISP system. After performing authentication on the terminal of the subscriber accessing the system, setting the DHCP server to match the media access control (hereinafter referred to as “MAC”) information of the authenticated terminal with a fixed IP address Setting step; And an IP allocation step in which the DHCP server transmits and allocates the fixed IP address matched with the MAC information to the terminal when the terminal requests the IP address allocation or update while transmitting the MAC information to the DHCP server using DCHP. do.

The setting step includes: (a) when the subscriber's terminal is authenticated, setting at least one public IP pre-assigned to an ISP to a network device of the system; (b) when authentication for the subscriber is completed, setting a DHCP server to match MAC information of the authenticated terminal with one of the one or more public IPs set in the network device.

The step (b) may include setting a DHCP server only when there is an unused number of the fixed IP addresses previously subscribed to by the subscriber.

The step (b) may include: selecting, by an authenticated terminal, one of one or more public IPs set in the network device; And setting a DHCP server to match the selected public IP and MAC information of the authenticated terminal.

The method for providing a static IP service according to an embodiment of the present invention is a terminal to which a static IP address is assigned, while providing an Internet access service using the static IP address, and managing an Internet connection service session of the terminal. The service provision step may be further included.

The Internet access service providing step may include performing usage management or policy control of a terminal using a fixed IP address.

A fixed IP service providing system according to an embodiment of the present invention is a system of an ISP that provides a fixed IP setting and Internet access service to a terminal of a subscriber who subscribes to a fixed IP service, after performing authentication on the terminal of the subscriber When the DHCP server is configured to match the MAC address of the authenticated terminal with a specific fixed IP address, and the terminal requests the IP address allocation or update while transmitting the MAC information to the DHCP server using DCHP, the DHCP server The fixed IP address matched with the MAC information is transmitted and allocated to the terminal.

Fixed IP service providing system according to an embodiment of the present invention, BNG for managing the Internet access of the terminal; A control server for controlling and managing BNG; An authentication server for authenticating the subscriber and its terminal by using pre-stored subscriber information and subscription product information for the terminal information delivered via the BNG and control server; A setting server for setting at least one public IP pre-assigned to an ISP to a network device when the subscriber's terminal is authenticated; And a web portal server that provides a web service to an authenticated terminal, and sets a DHCP server to match MAC information of the authenticated terminal with one of one or more public IPs set in the network device when authentication for the subscriber is completed. It can contain.

The web portal server can set up a DHCP server only when there is an unused number of fixed IP addresses of the subscriber.

The web portal server provides a web page to the authenticated terminal where the authenticated terminal can select one of one or more public IPs set in the network device, and the public IP and the authenticated terminal selected by the authenticated terminal on the web page. A DHCP server can be configured to match MAC information.

The BNG is a terminal to which a fixed IP address is assigned, and provides a Internet access service using a fixed IP address, and can manage a session for the Internet access service of the corresponding terminal.

The BNG may generate usage information of a terminal using a fixed IP address,

The control server receives the generated usage information and provides it to the authentication server, but can perform policy control on the terminal, and the authentication server uses the previously stored subscriber information and subscription product information to transmit the delivered usage information. Can be managed.

The present invention configured as described above can provide a fixed IP address setting using DHCP as a specific subscriber terminal of the ISP and an Internet access service accordingly, thereby improving convenience and accuracy of setting a fixed IP address for the specific subscriber terminal. In addition, since the DHCP packet is generated from the specific subscriber terminal when setting the address, the ISP system has an advantage of enabling usage management and policy control according to the session management for the subscriber terminal.

1 is a block diagram of a fixed IP service providing system 10 and a terminal 20 connected thereto according to an embodiment of the present invention.
2 is a flowchart of a method for providing a static IP service according to an embodiment of the present invention.
3 shows a process of setting an available IP address in a network device of the fixed IP service providing system 10 according to an embodiment of the present invention.
4 and 5 show a process for setting the DHCP server 17 of the fixed IP service providing system 10 according to an embodiment of the present invention.
6 illustrates a process in which the fixed IP service providing system 10 according to an embodiment of the present invention allocates a fixed IP address to the terminal 20 requesting the assignment of the IP address and manages the session accordingly.
7 shows a process of allocating a fixed IP address to a terminal 20 requesting an update of an IP address, and a process of managing a session according to the fixed IP service providing system 10 according to an embodiment of the present invention.

The above objects and means of the present invention and the effects thereof will be more apparent through the following detailed description in connection with the accompanying drawings, and accordingly, those skilled in the art to which the present invention pertains may facilitate the technical spirit of the present invention. Will be able to practice. In addition, in the description of the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted.

The terminology used herein is for describing the embodiments, and is not intended to limit the present invention. In the present specification, the singular form also includes the plural form in some cases unless otherwise specified in the phrase. In this specification, terms such as “include”, “have”, “have” or “have” do not exclude the presence or addition of one or more other components other than the components mentioned.

In this specification, terms such as “or” and “at least one” may refer to one of the words listed together, or a combination of two or more. For example, “or B” “and at least one of B” may include only one of A or B, and may include both A and B.

In this specification, descriptions such as “for example,” etc. may not exactly match the information presented, such as the cited characteristics, variables, or values, tolerances, measurement errors, limitations of measurement accuracy, and other factors commonly known. It should not limit the embodiments of the invention according to various embodiments of the present invention with effects such as modifications.

In this specification, when a component is described as being'connected' or'connected' to another component, it may be directly connected to or connected to another component, but other components may exist in the middle. It should be understood that it may. On the other hand, when a component is said to be'directly connected' or'directly connected' to another component, it should be understood that no other component exists in the middle.

In the present specification, when a component is described as being'on' or'in contact with' another component, another component may be directly in contact with or connected to the other component, but another component may exist in the middle. It should be understood that it can. On the other hand, when a component is described as being'directly on' or'directly on' another component, it may be understood that another component is not present in the middle. Other expressions describing the relationship between the components, for example,'between' and'directly between' can also be interpreted.

In this specification, terms such as'first' and'second' may be used to describe various components, but the corresponding components should not be limited by the above terms. In addition, the above terms should not be interpreted to limit the order of each component, but may be used for the purpose of distinguishing one component from another component. For example, the'first component' may be referred to as a'second component', and similarly the'second component' may also be referred to as a'first component'.

Unless otherwise defined, all terms used in this specification may be used in a sense that can be commonly understood by those skilled in the art to which the present invention pertains. In addition, terms defined in the commonly used dictionary are not ideally or excessively interpreted unless explicitly defined.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a fixed IP service providing system 10 and a terminal 20 connected thereto according to an embodiment of the present invention.

The fixed IP service providing system 10 according to an embodiment of the present invention is a system of an ISP, and is a system that provides a fixed IP setting and Internet access service to a terminal 20 of a subscriber who subscribes to the fixed IP service. That is, “fixed IP service” is a service provided by an ISP system. It allocates a fixed public IP address using DHCP to a specific terminal, and assigns the fixed IP address to a specific terminal using the assigned static IP address. It may refer to a service that provides Internet access services.

The fixed IP service providing system 10 according to an embodiment of the present invention includes a plurality of network devices and servers. These network devices and servers may be connected to each other through an internal network, but are not limited thereto, and may be connected through the Internet.

The network device is a device that provides various networking technologies for access to the system 10 and the Internet, an access modem at a subscriber terminal directly connected to a network adapter of the terminal 20, an L2 switch for switching signals of the access modem, L3 switch, backbone router (backbone router), BNG (11) and the like.

At this time, the BNG 11 is a device that manages Internet access of the terminal 20 by being connected to an access modem on the subscriber terminal side, and may also be referred to as a Broadband Remote Access Server, and applies various policies to the terminal 20 It can be done. For example, the BNG 11 may be performed by applying a policy such as line speed and QoS (Quality of Service) to the terminal 20. Information transmitted from the terminal 20 may be transmitted to various servers in the system 10 via the BNG 11, and information generated by various servers in the system 10 is also transmitted through the BNG 11 to the terminal 20 Can be passed on.

The control server 12 is a server that controls the BNG 11, and can perform various policy controls. That is, the control server 12 may determine the policy to be applied to the terminal 20 and deliver it to the BNG 11, and the BNG 11 may be performed by applying the received policy.

The authentication server 13 is a server that performs authentication for the subscriber and its terminal 20. That is, the authentication server 13 may store and manage subscriber information and subscription product information. Accordingly, the authentication server 13 subscribes to the fixed IP service by using pre-stored subscriber information and subscription product information for the information of the terminal 20 delivered via the BNG 11 and the control server 12. Authentication can be performed by confirming whether the subscriber and the terminal 20 thereof.

The management server 14 is a server that manages the status of a fixed IP address. That is, the management server 14 remains unassigned to the terminal among the public IP addresses assigned to the terminal among the total public IP addresses (hereinafter referred to as “dedicated IP”) and dedicated IP addresses assigned to the ISP. You can store and manage the status of whether a public IP address or a public IP address in use is fixed or floating. Accordingly, the management server 14 can also store and manage information on subscribers and their terminals who are assigned and used public IP addresses.

The management server 14 can confirm whether the corresponding terminal 20 is currently being assigned and using a fixed IP address from the information of the terminal 20 transmitted from the control server 12 and the web portal server 16. At this time, if a static IP address is not being used, the management server 14 may transmit information on at least one of the remaining public IP addresses (hereinafter referred to as “available IP address”) to the web portal server 16. .

The setting server 15 is a server that sets an IP address on the network device so that the network device can perform information by smoothly performing networking. That is, when the authentication server 13 is authenticated to the terminal 20 of the subscriber by the authentication server 13, the setting server 15 sets the available IP address transmitted from the management server 14 to the network device.

The web portal server 16 is a server that provides a web service to the terminal 20 authenticated by the authentication server 13. At this time, the web portal server 16, when the authentication for the subscriber is completed, provides a web page to the authenticated terminal 20 to select one of one or more public IP set in the network device by the setting server 15, The DHCP server 17 may be configured to match the public IP selected by the authenticated terminal 20 on the corresponding web page with the MAC information of the authenticated terminal 20.

The DHCP server 17 is a server that allocates a public IP address. That is, the DHCP server 17 communicates with the terminal 20 using DHCP, and can allocate an available IP address to the terminal 20. At this time, the DHCP server 17 may receive the available IP address status from the management server 14.

The terminal 20 is an electronic device that receives a static IP service and can be used by an ISP subscriber who has applied for the static IP service.

For example, the terminal 20 is a smart phone (smartphone), a smart pad (smartpad), a mobile phone (mobile phone), tablet PC (tablet personal computer), desktop PC (desktop personal computer), laptop PC (laptop personal computer) ), a netbook computer, a workstation, a server, but is not limited thereto.

Meanwhile, each of the servers 11 to 17 and the terminal 20 of the system 10 may include a control unit that performs various controls, and a communication unit and a storage unit that operate according to the control unit.

As a device that transmits and receives various information to and from other devices, it may include wired/wireless communication modules of various communication methods. For example, the wired communication module may include a local area network (LANs) module, a wide area network (WANs) module, a metropolitan area network (MANs) module, an integrated service digital network (ISDNs) module, etc. , But is not limited thereto. In addition, the wireless communication module is a WiFi (WiFi) communication module, Bluetooth communication module, NFC (Near Field Communication) communication module, BAN (Body Area Network) communication module, ZigBee (ZigBee) communication module, Internet of Things communication module (LoRaWAN, SigFox , W-MBUS, Wi-SUN, etc.), other short-range communication modules, or mobile communication modules (LET-M, etc.), but are not limited thereto.

The storage unit is a device that suits various information transmitted or received by the communication unit or processed by the control unit. For example, the storage unit may be a hard disk type, magnetic media type, compact disc read only memory (CD-ROM), optical media type, magnetic, depending on the type. -Optical media type (Sagneto-optical media type), multimedia card micro type (Sultimedia card micro type), flash memory type (flash memory type), ROM type (read only memory type), RAM type (random access memory type), etc. However, it is not limited thereto. In addition, the storage unit may be a cache, a buffer, a main memory, or an auxiliary memory or a separately provided storage system according to its use/location, but is not limited thereto.

Hereinafter, a method of providing a static IP service performed by the system for providing a static IP service 10 according to an embodiment of the present invention will be described in more detail.

2 is a flowchart of a method for providing a static IP service according to an embodiment of the present invention.

The method for providing a static IP service according to an embodiment of the present invention includes S100 to S300, as shown in FIG. 2.

S100 is a setting step, the step of setting the available IP address to the network equipment of the system 10 and registering and setting by matching the MAC information and the fixed IP address of the subscriber's terminal 20 to use the fixed IP address It includes the steps. After performing authentication on the terminal 20 of the subscriber accessing the system 10, S100 matches the MAC information of the authenticated terminal 20 with a fixed IP address. After setting the available IP address in the network device of the system 10, S100 sets the DHCP server 17 by matching the MAC information and the fixed IP address to the terminal 20 of the subscriber who wants to use the fixed IP address. Can be.

3 shows a process of setting an available IP address in a network device of the fixed IP service providing system 10 according to an embodiment of the present invention.

First, a process for setting an available IP address in the network device of the system 10 is as follows.

The terminal 20 transmits access information to the BNG 11 (S101). At this time, the terminal 20 is not shown in FIG. 3, but may be a terminal that has already been assigned a dynamic IP according to DCHP by connecting to the DCHP server 17. The access information received by the BNG 11 may include MAC information of the terminal 20 and location information of the terminal 20. At this time, the location information is facility information such as switch information to which the terminal 20 is connected, and if this is used, it can be determined which equipment the terminal 20 is located in and can identify which user's terminal through it.

Thereafter, the BNG 11 requests authentication while transmitting access information to the control server 12 (S102). At this time, the control server 12, although not shown in FIG. 3, accesses the authentication server 13, and determines whether the terminal 20 according to the access information is the terminal 20 of the subscriber subscribed to the fixed IP service. After authentication, when authenticated, subscriber information and product information thereof may be received together with authentication completion information.

Subsequently, the control server 12 generates a policy for the fixed IP service subscribed using the subscriber information received from the authentication server 13 and its product information, and delivers the policy to the BNG 11, and in the BNG 11, the control server It is performed by applying the corresponding policy received from (12) (S103). For example, the policy applied at this time may be a policy for circuit speed.

Thereafter, the terminal 20 connects to the web portal server 16 (S104). However, since the information on the terminal 20 side transmitted to the server in the system 10 passes through the BNG 11, even if the terminal 20 transmits information attempting to access another web server at this stage, BNG ( 11) may transmit information to force the web portal server 16 to the terminal 20.

Thereafter, the web portal server 16 checks subscriber information of the terminal 20 from the control server 12 (S105). At this time, since the control server 12 already has subscriber information of the terminal 20 received from the authentication server 13 through S102, the corresponding subscriber information can be delivered to the web portal server 16.

Subsequently, the web portal server 16 confirms the IP setting for the corresponding subscriber while transmitting the subscriber information received from the control server 12 to the management server 14 (S106). It is possible to check whether the IP is set in network devices so that the corresponding subscriber can use a static IP address. At this time, if the fixed IP address available to the corresponding subscriber is not set, the management server 14 may transmit to the web portal server 16 that IP setting is required. In addition, the web portal server 16 can confirm whether the terminal 20 of the corresponding subscriber is currently being assigned and using a fixed IP address from the management server 14. At this time, if the terminal 20 is still not using a fixed IP address, the management server 14 may deliver information about the available IP address to the web portal server 16.

Thereafter, the web portal server 16 provides a first webpage capable of IP setting to the terminal 20 (S107). At this time, in the first web page, a static IP address available to the user has not been set in the network equipment, and the terminal 20 has not yet been assigned a static IP address, and accordingly a fixed IP address allocation, that is, a static IP It may include information that can confirm the intention of whether to start the service.

Subsequently, when an IP setting desired to allocate a fixed IP address is requested from the terminal 20 according to the first webpage (S108), the web portal server 16 delivers the request to the setting server 15 (S109). ). At this time, the web portal server 16 transmits information on the available IP address received from the management server 14 in S106 to the setting server 16 along with the corresponding request. Accordingly, the setting server 15 sets the available IP address received to the network device. From this point on, the available IP address is set to the network devices, and the user's terminal wishing to use a fixed IP address can be registered.

Subsequently, the web portal server 16 provides the second web page to the terminal 20 informing the completion of the reception of the request in step S108 (S110).

4 and 5 show a process for setting the DHCP server 17 of the fixed IP service providing system 10 according to an embodiment of the present invention.

Next, the process for setting the DHCP server 17 of the system 10 is as follows.

The terminal 20 transmits the access information to the BNG 11 (S111), and the contents thereof may be the same as S101.

Thereafter, the BNG 11 requests authentication while transmitting access information to the control server 12 (S112).

Thereafter, the control server 12 requests the authentication server 13 to authenticate whether the terminal 20 according to the corresponding access information is the terminal 20 of a subscriber subscribed to a fixed IP service (S113).

Thereafter, the authentication server 13 transmits the authentication result to the control server 12 (S114). At this time, when authenticated, the authentication server 13 may transmit subscriber information and product information together with the authentication completion information to the control server 12. At this time, the product information may include information on the total number of static IP addresses of the fixed IP service subscribed by the corresponding subscriber and the number of unused ones. That is, when subscribing to the static IP service, the subscriber can select the total number of static IPs that can be used.

Thereafter, if there is an unused number, the control server 12 generates a policy informing it and transmits it to the BNG 11, and the BNG 11 applies and applies the corresponding policy received from the control server 12 (S115). ). The policy at this time may include allowing the user's terminal to access the web portal server 16 forcibly.

Thereafter, the terminal 20 is forcibly connected to the web portal server 16 (S116). That is, even if the terminal 20 transmits information that attempts to connect to another web server, the BNG 11 to which the policy according to S115 is applied applies information to force the web portal server 16 to access the terminal 20 Can deliver.

Thereafter, the web portal server 16 checks subscriber information of the terminal 20 from the control server 12 (S117). At this time, the control server 12 already has information on the subscriber information of the terminal 20 received from the authentication server 13 through S114, the total number of fixed IP addresses, and the number of unused ones, so the information is a web portal server. (16).

Thereafter, the web portal server 16 checks the IP setting for the corresponding subscriber again while transmitting the subscriber information received from the control server 12 to the management server 14 (S118). That is, the web portal server 16 can check again whether the terminal 20 of the corresponding subscriber is currently being assigned and used by the management server 14. At this time, the management server 14 may transmit information about the static IP address being used by the subscriber to the web portal server 16.

Subsequently, the web portal server 16 provides the terminal 20 with a third webpage indicating the number of static IPs used and unused by the subscriber and information about the static IP being used (S119).

Subsequently, the control server 12 transmits the policy for the user's terminal according to S115 to forcibly access the web portal server 16 to be released to the BNG 11, and the BNG 11 receives from the control server 12 It is performed by applying the corresponding policy (S120).

Thereafter, the terminal 20 receives the identification information of the subscriber from the subscriber or the administrator, and transmits the received information to the web portal server 16 (S121). For example, the identification information may include subscriber information such as a subscriber's name, date of birth, and gender.

Thereafter, the web portal server 16 connects to the authentication server 13 and verifies and authenticates whether the identification information of the application matches the subscriber information of the Internet line previously stored in the authentication server 13 (S122).

Subsequently, when authenticated in S122, the web portal server 16 provides the terminal 20 with a fourth webpage indicating the MAC information of the terminal 20 and information about a fixed IP address to be allocated selected from available IPs. (S123).

Thereafter, when the terminal 20 requests to allocate an available IP according to the fourth webpage as its own static IP address (S124), the web portal server 16 uses the MAC information of the terminal 20 and its use The reservation information for possible IPs is transmitted to the DHCP server 17 (S125). Accordingly, the DHCP server 17 can prevent the reserved available IP from being used as a dynamic IP address or a fixed IP address of another terminal.

Thereafter, when the reservation is completed in the DCHP server 17, the web portal server 16 provides a fifth webpage indicating the completion of the reservation to the terminal 20 (S126).

Thereafter, when the terminal 20 finally determines that the reserved available IP is to use its static IP address, the web portal server 16 may use the reserved available IP as the static IP address of the terminal 20. The allocation confirmation information is transmitted to the DHCP server 17 (S128).

Thereafter, the DHCP server 17 matches and stores and manages the MAC information of the terminal 20 and a corresponding static IP address, and transmits the information to the control server 12 (S129). In addition, the web portal server 16 transmits the result of the fixed IP determination, that is, information on the assigned terminal 20 and information on the fixed IP address to the management server 14 and the control server S131 (S130, S131). Accordingly, the management server 14 may update and manage the status of the fixed IP address.

S200 is an IP allocation step, and when the terminal 20 requests allocation or update of an IP address while transmitting MAC information to the DHCP server 17 using DCHP, the DHCP server 17 matches DC information using DCHP. This is a step of transmitting and assigning the fixed IP address to the terminal 20.

S300 is a step of managing a session for the Internet access service of the corresponding terminal 20 while providing the Internet access service using the fixed IP address to the terminal 20 to which the fixed IP address is assigned. Accordingly, in S300, usage management or policy control of the terminal 20 using a fixed IP address may be performed.

6 shows a process of allocating a fixed IP address to the terminal 20 requesting the assignment of an IP address and a process of managing a session according to the fixed IP service providing system 10 according to an embodiment of the present invention.

After S100 is performed, the terminal 20 may reboot and request the DCHP server 17 to allocate an IP address (S201). At this time, the terminal 20 may request the assignment of an IP address while transmitting the DCHP Discover packet, and the DCHP packet includes MAC information of the terminal 20.

Thereafter, the DCHP server 17 allocates the fixed IP address to the terminal 20 by transmitting the fixed IP address matching the received MAC information to the terminal 20 (S202). At this time, if necessary, the DHCP server 17 may provide a fixed IP allocation history to the management server 14.

Thereafter, the BNG 11 requests authentication to the control server 12 whether the fixed IP address assigned to the terminal 20 is correct, and when authentication is completed, the control server 12 uses the corresponding static IP address. A policy for providing the Internet access service using the fixed IP address to the terminal 20 is transmitted to the BNG 11 (S301).

Thereafter, the BNG 11 manages a session for the terminal 20 using the fixed IP address while providing an Internet access service using the fixed IP address. Accordingly, the BNG 11 generates information on the Internet access usage of the terminal 20 using the corresponding fixed IP address and delivers it to the control server 12 (S302), and the control server 12 transmits the usage information. It is transmitted to the authentication server 13 (S303). That is, the authentication server 13 finally manages the usage amount of the terminal 20, and when the accumulated usage amount according to the usage information transmitted using the pre-stored subscriber information and subscription product information is more than a certain level, the control server 12 ), it is possible to deliver a policy to limit this to the BNG (11).

7 shows a process of allocating a fixed IP address to a terminal 20 requesting an update of an IP address, and a process of managing a session according to the fixed IP service providing system 10 according to an embodiment of the present invention.

After S100 is performed, the terminal 20 may request an update of the IP address to the DCHP server 17 without rebooting (S211). At this time, the terminal 20 may request to update the IP address while transmitting the DCHP Request packet.

Thereafter, the DCHP server 17 retrieves the floating IP address currently assigned to the terminal 20 (S212). At this time, the DCHP server 17 may transmit the Nak DCHP packet to the terminal 20.

Thereafter, the terminal 20 requests the DCHP server 17 to reassign the IP address (S213). At this time, the terminal 20 may request IP allocation while transmitting the DCHP packet of the GIADDR, and the DCHP packet includes MAC information of the terminal 20.

Thereafter, the DCHP server 17 allocates the fixed IP address to the terminal 20 by transmitting the fixed IP address matching the received MAC information to the terminal 20 (S214). At this time, if necessary, the DHCP server 17 may provide a fixed IP allocation history to the management server 14.

Thereafter, S301 to S303 described above are performed.

In the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention is not limited to the described embodiments, but should be defined by the claims that will be described later and those equivalent to the claims.

10: Fixed IP service providing system 11: BNG
12: control server 13: authentication server
14: Management server 15: Configuration server
16: Web portal server 17: DHCP server
20: terminal

Claims (12)

A method of providing a static IP service in which a system of an Internet service provider (ISP) provides a fixed IP setting and Internet access service to a terminal of a subscriber who subscribes to the fixed IP service,
A setting step of setting a DHCP server to match the media access control (MAC) information of the authenticated terminal with a fixed IP address after performing authentication on the terminal of the subscriber accessing the system; And
An IP allocation step in which the DHCP server transmits and allocates the fixed IP address matched with the MAC information to the terminal when the terminal requests the IP address allocation or update while transmitting the MAC information to the DHCP server using DCHP;
Fixed IP service providing method comprising a. According to claim 1,
The setting step,
(a) when the subscriber's terminal is authenticated, setting at least one public IP pre-assigned to an ISP to a network device of the system; And
(b) when authentication for the subscriber is completed, setting a DHCP server to match the MAC information of the authenticated terminal with one of the one or more public IPs set in the network device;
Fixed IP service providing method comprising a. According to claim 2,
Step (b) is,
And setting a DHCP server only when there is an unused number of the fixed IP addresses previously subscribed to by the subscriber. According to claim 3,
Step (b) is,
An authenticated terminal selecting one of the one or more public IPs set in the network device; And
Setting a DHCP server to match the selected public IP and MAC information of the authenticated terminal;
Fixed IP service providing method comprising a. According to claim 1,
A fixed IP service characterized by further comprising an Internet access service providing step of managing a session for the Internet access service of the corresponding terminal while providing the Internet access service using the corresponding static IP address to the terminal to which the fixed IP address is assigned. How to provide. The method of claim 5,
The Internet access service providing step,
A method of providing a static IP service, comprising the step of performing usage control or policy control of a terminal using a static IP address. A fixed IP service providing system of an Internet service provider (ISP) that provides a fixed IP setting and Internet access service to a terminal of a subscriber who subscribes to a fixed IP service,
After performing authentication on the subscriber's terminal, a DHCP server is set to match the media access control (MAC) information of the authenticated terminal with a specific fixed IP address,
When the terminal requests the IP address allocation or update while transmitting the MAC information to the DHCP server using DCHP, the DHCP server transmits the fixed IP address matched with the MAC information to the terminal and allocates the fixed IP. Service delivery system. The method of claim 7,
A broadband network gateway (BNG) that manages Internet access of the terminal;
A control server for controlling and managing BNG;
An authentication server for authenticating the subscriber and its terminal by using pre-stored subscriber information and subscription product information for the terminal information transmitted through the BNG and control server;
A setting server for setting one or more public IPs pre-assigned to an ISP to a network device when the subscriber's terminal is authenticated; And
A web portal server configured to provide a web service to an authenticated terminal, and to set a DHCP server to match MAC information of the authenticated terminal with one of one or more public IPs set in the network device when authentication for the subscriber is completed;
Fixed IP service providing system comprising a. The method of claim 8,
The web portal server,
A fixed IP service providing system, characterized in that a DHCP server is set only when there is an unused number of the fixed IP addresses of the subscriber. The method of claim 9,
The web portal server,
The authenticated terminal provides a selectable web page to one of the one or more public IPs set in the network device to the authenticated terminal, and matches the public IP selected by the authenticated terminal on the web page with the MAC information of the authenticated terminal. A fixed IP service providing system, comprising setting up a DHCP server. The method of claim 8,
The BNG,
A fixed IP service providing system, characterized in that it manages a session for an Internet access service of a corresponding terminal while providing an Internet access service using a fixed IP address to a terminal assigned with a static IP address. The method of claim 11,
The BNG generates usage information of a terminal using a fixed IP address,
The control server receives the generated usage information and provides it to the authentication server, but performs policy control for the terminal,
The authentication server is a fixed IP service providing system, characterized in that it manages the usage information transmitted by using the information on the subscriber information and subscription products stored in advance.

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