KR100586428B1 - Method to redirect of web page for internet service management - Google Patents

Abstract

The present invention relates to a subscriber access web page control method for internet service management, wherein the management server requests the subscriber to lease the IP address of the subscriber station to the DHCP server, and the IP address information of the subscriber station allocated to the subscriber terminal and the interface for using the Internet. Managing DHCP lease criterion information, delivering IP address information allocated to subscribers to a packet filter, and delivering allocated IP address information and set management contents to a user access server; If any subscriber enters a particular domain name address, the switch copies the corresponding packet of the entered domain name address to a packet filter; The packet filter checks whether the packet is delivered from a subscriber station of a management target managed by a management server, and then forwards the packet to a DNS response converter. Generating, by the DNS response converter, a packet having an IP address of a user access server for Internet service management as a response to a domain name query, and forwarding the packet to a switch; When the subscriber station is connected to the user access server, the user access server provides the subscriber station with IP address information and information on management contents, and then transmits the IP address information of the subscriber station to the management server to delete the subscriber terminal. It is characterized by.

Internet Services, Web Pages, Switches, Filters

Description

How to control subscriber access web page for internet service management {METHOD TO REDIRECT OF WEB PAGE FOR INTERNET SERVICE MANAGEMENT}             

1 is a conceptual diagram of a network for implementing the present invention;

2 is a flowchart illustrating a method of controlling a subscriber access web page according to the present invention;

3 is a format for a DNS protocol packet applied to the present invention.

* Explanation of symbols for main parts of the drawings

100: subscriber terminal 110: subscriber Internet access device

120: Internet connection termination device 130: switch

140: DHCP system 142: DHCP server

144: DHCP data storage space 150: Internet service management system

152: Packet Filter 154: DNS Response Converter

156: management server 160: router

170: Internet network 180: DNS server

190: user access server

The present invention relates to a method for controlling a subscriber access web page, and more particularly, to a method of controlling a web page accessed by a subscriber using an internet service by using an internet address by using an internet web browser or another service. It is about.

Due to the increase in the number of Internet subscribers and the increase of various services based on the Internet, there is a gradual increase in items to be notified or guided by Internet service providers.

At this time, contacting the subscriber via the telephone or other means by the Internet service provider can be a cumbersome and difficult task due to the absence of the subscriber or the diversity of the subscriber PC environment. Therefore, in order to solve such a problem, a specific program may be installed in the subscriber PC, but it may not be a satisfactory alternative in consideration of a variety of computing environments, a variety of operating systems, and a subscriber who does not want to install.

Accordingly, the present invention has been made to solve the above problems, the Internet service provider that leases the IP address using advertisements such as DHCP or DNS basically provided to the subscriber terminal for the Internet service or advertisements, etc. An object of the present invention is to provide a method for controlling a subscriber access web page for managing an Internet service capable of delivering a service.

In order to achieve the above object, according to the present invention, a subscriber is allocated an IP address from a DHCP server and is connected to a switch and a switch connected between an Internet access termination device of a subscriber terminal and a router in the form of using an Internet service. A method of controlling a web page that a subscriber accesses through an operating packet filter, a DNS response converter, a management server, and a user access server, wherein the management server is assigned by requesting the subscriber to lease the IP address of the subscriber terminal to a DHCP server. Managing IP address information of a subscriber station and DHCP lease reference information of an interface for using the Internet; The management server determines whether to be managed by the subscriber using DHCP lease reference information. If the management target is managed, the management server transfers the IP address information assigned to the subscriber to the packet filter. Delivering to; If any subscriber enters a specific domain name address through the subscriber terminal, the switch copies the corresponding packet of the entered domain name address to a packet filter; The packet filter checks whether a packet is transmitted from a subscriber station of a management target based on an IP address received from a management server, and then forwards the packet to a DNS response converter. The DNS response converter analyzes the received packet, and generates and transmits a packet having the IP address of the user access server as a response to the domain name query to the switch; When the managed subscriber station is connected to the user access server by a response packet received from the switch, the user access server provides the subscriber terminal with information about management contents such as advertisements or announcements, and then requests for the management contents of the subscriber. Confirming whether or not; Transmitting, by the user access server, IP address information of the corresponding subscriber station to a management server; The management server excludes the IP address information of the subscriber station received from the IP address information of the subscriber to be managed; And transmitting the excluded IP address information to the packet filter and the user access server so that the subscriber can use the DNS related service through the DNS server.

At this time, in the web page control method, a specific domain name address is input through the management subscriber terminal, and the IP address of the user access server arriving through the DNS response converter in response to the domain name address query is converted into a conversion value. It is desirable to operate so that the response packet is forwarded to the switch before the response packet for the translated IP address of the specific domain name address arriving through the DNS server.

In addition, the web page control method, as a specific domain name address is input through the management target subscriber terminal, the DNS response packet to be responded through the DNS server to the subscriber terminal is dropped from the switch or router so as not to be forwarded, DNS response It is desirable to operate so that only a response from the transducer is delivered to the subscriber terminal.

In addition, the web page control method, after providing the information on the management information to the subscriber station through the user access server, DNS response packet arrives in response to the response through the DNS server as a specific domain name address is input to the subscriber station; It is preferable to operate the server to connect to the server.

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

1 is a conceptual diagram of a network for implementing the present invention, in which "100" is a subscriber terminal, "110" is a subscriber Internet access device, "120" is an Internet access termination device, "130" is a switch, "140" is Dynamic Host Configuration Protocol (DHCP) system, "150" is Internet service management system, "160" is router, "170" is internet network, "180" is DNS (Domain Name Server) server, "190" is user access server Respectively.

As shown in FIG. 1, the DHCP system 140 includes a DHCP server 142 and a DHCP data storage space 144. The Internet service management system 150 includes a packet filter 152 and a DNS response converter. 154, management server 156, and the like.

The Internet access terminator 120 operates in conjunction with the subscriber Internet access device 110. In addition, the switch 130 transmits the packet to the packet filter 152 by simply copying a packet from the subscriber terminal 100 to the router 160 through the Internet access terminator 120 for use of the Internet. Is done.

The DHCP server 142 of the DHCP system 140 is responsible for leasing a DHCP line and assigns each subscriber station 100 lease information such as an IP address, gateway information, DNS information, and line lease duration required for Internet access. do. In addition, the DHCP data storage space 144 operates in connection with the DHCP server 142 and stores the assigned IP address of a specific subscriber and the MAC address of an interface such as an Ethernet card or a cable modem.

The management server 156 of the Internet service management system 150 manages the DHCP server 142, the packet filter 152, the DNS response converter 154, etc. while comprehensively managing the subscriber terminal 100 of the subscriber terminal 100. The subscriber manages the information such as the interface MAC address registered and registered, such as the DHCP lease allocation standard and the information received from the DHCP data storage space 144, but the IP address and DHCP lease allocation standard.

In addition, after searching for an IP address assigned by the subscriber to be managed using the above DHCP lease reference information, the IP address assigned by the subscriber of the management target is transferred to the packet filter 152 or the IP assigned by the subscriber. The address and the management content are transmitted to the user access server 190. That is, it transmits and manages the IP address, management matters and guidance information assigned to the terminal 100 of a specific subscriber stored in the DHCP data storage space 144 to the packet filter 152 or the user access server 190. .

The packet filter 152 checks whether the packet coming through the switch 130 is a packet transmitted from the subscriber station 100 of the management target managed by the management server 156 and then transfers the packet to the DNS response converter 154. .

At this time, the management server 156 manages the IP address of the management target subscriber station 100 received from the DHCP server 142, in order to check whether the packet is delivered from the subscriber terminal 100 of the management target, and the subscriber The UDP destination port corresponding to the source IP address of the subscriber station 100 to be managed and the destination port of the DNS protocol on the UDP among the IP and User Datagram Protocol (UDP) packets transmitted from the terminal 100 through the switch 130. The 53 packets are selected and forwarded to the DNS response converter 154.

However, since the destination is not the packet filter 152, the IP packet transmitted from the subscriber station 100 to the packet filter 152 needs a separate method for receiving and converting these packets to the subscriber station 100. Do. In the present invention, the packet filter 152 or the DNS response converter 154 may be implemented based on packet capturing.

At this time, when the switch 130 is set and operated to perform simple routing instead of packet copying, the packet filter 152 may store packets other than the DNS query packets of the target subscribers required by the DNS response converter 154. It should be able to be delivered to the router 160 through the switch 130 or directly to the router 160 without a separate conversion.

The DNS response converter 154 analyzes and responds to the packet received from the packet filter 152, but configures the DNS response packet so that the subscriber can access the user access server 190 for Internet service management. DNS packet is generated and forwarded to the switch 130 so as to have an IP address in response to the domain name query.

That is, the DNS response packet for the domain name query follows the general DNS response packet generation method, but sets the response IP address for the queried domain name as the IP address of the user access server 190.

And, the configuration of the UDP packet including the corresponding DNS packet so that the response packet can be recognized by the subscriber station 100 according to the general UDP packet configuration method, the source UDP port address is the destination UDP port address, the destination UDP The port address needs to be operated to be the source UDP port address.

In addition, the IP packet carrying the UDP packet follows the general IP packet configuration, but operates so that the source IP address of the IP packet received from the packet filter 152 becomes the destination IP address, and the destination IP address becomes the source IP address. It is necessary for the terminal 100 to recognize the IP protocol packet.

The router 160 is responsible for routing to the Internet network 170, the DNS server 180 converts the domain name address received from the router 160 into an IP address, and the user access server 190 is a web service. It is a kind of web server that allows subscribers to access for management needs or guidance based on.

Meanwhile, the subscriber station 100 receives the DNS response packet from the DNS server 180 and the DNS response converter 154. The subscriber station 100 responds only to the response packet received first, and responds to the response packet received later. I never do that.

Thus, if a packet of the DNS response converter 154 arrives first, the subscriber station 100 is connected to the user access server 190. However, if a packet of the DNS response converter 154 cannot arrive first due to performance problems such as the packet filter 152 or the DNS response converter 154, the IP of the subscriber to be managed through the switch 130 or the router 160 It can also operate to drop packets that match the address and UDP destination 53 port. At this time, the management server 156 needs to provide the switch 130 or the router 160 with the IP address to which the subscriber to be managed is assigned.

2 is a flowchart illustrating a method of controlling a subscriber access web page according to the present invention, and relates to a method of controlling a web page accessed by a subscriber using an Internet service after an IP address is allocated in a lease manner. 3 is a format for a DNS protocol packet applied to the present invention.

Referring to FIG. 2, when a subscriber to be managed first requests a lease of an IP address for using an Internet service to a DHCP server 142 of an Internet service provider through his terminal 100, the DHCP server 142 may request a lease. Assign a specific IP address (S202, S204).

Subsequently, the management server 156 manages DHCP lease reference information such as an IP address allocated and delivered from the DHCP server 142 and a MAC address of an interface for Internet use such as an Ethernet card or a cable modem (S206, S208). .

Subsequently, the management server 156 determines whether the subscriber is to be managed using DHCP lease reference information, and if so, delivers the IP address information allocated to the subscriber to the packet filter 152 and assigns the allocated IP address information. And it transmits the management content, such as advertising or guidance set to the user access server 190 (S210, S212).

On the other hand, if any subscriber enters the corresponding domain name address through the subscriber terminal 100 to access a specific web page, the user goes through a layer such as UDP, IP, and Ethernet based on a Domain Name Service Query (DNS) query. The packet is configured to be delivered to the switch 130, and the switch 130 copies the packet to the packet filter 152 (S214 and S216).

Subsequently, the packet filter 152 checks whether the received packet is a packet transmitted from the subscriber station 100 of the management target managed through the management server 156, and if it is correct, the DNS packet of the corresponding UDP 53 destination port. To the DNS response converter 154 (S218).

Specifically, the packet filter 152 is a packet in which the source IP address of the Internet Protocol Layer (IP) packet matches among the IP addresses of the managed subscriber station 100 stored in the packet filter 152 by the management server 156. Check if there is any packet destined for UDP destination port 53, DNS service port.

Subsequently, the DNS response converter 154 analyzes the received DNS packet, and then, instead of the IP address corresponding to the domain name address requested from the subscriber station 100, the DNS access converter 190 of the user access server 190 configured for Internet service management. A response packet for the IP address is generated and transmitted to the switch 130 (S220).

Subsequently, when the subscriber station 100 is connected to the user access server 190 by the response packet received from the switch 130, the user access server 190 is an advertisement set to the subscriber based on the connected subscriber's IP address information. B, after providing information on management contents such as guidance to the subscriber terminal 100, check whether the requested performance of the management contents of the subscriber is requested (S222, S224, S226).

When the subscriber checks the advertisement or the guidance or successfully fulfills the request, the user access server 190 transmits the IP address information of the subscriber station 100 to the management server 156 and the management server ( 156 excludes the received IP address information of the subscriber station 100 from the management target subscriber IP address information (S228, S230).

Subsequently, the management server 156 transmits the excluded IP address information to the packet filter 152 and the user access server 190. The packet filter 152 forwards the DNS query packet to the DNS response converter 154. Exclude the IP address received from the target IP address (S232, S234).

As a result, when the subscriber station 100 excluded from management performs a DNS query, the requested information is not transmitted to the DNS response converter 154 through the packet filter 152, thereby making a general DNS response through the DNS server 180. Only packets are delivered to subscriber station 100.

On the other hand, the web page control method, after providing the information on the management information to the subscriber terminal 100 through the user access server 190, the subscriber terminal 100 as a specific domain name address is input to the DNS server ( The server may be operated to be connected to the corresponding server by the DNS response packet that arrives in response to the request through 180).

Referring to a specific operation method, first, the switch 130 transfers a packet transmitted from the DNS server 180 through the internet network 170 and the router 160 to the packet filter 152. Then, the packet filter 152 further receives a packet corresponding to the source port 53 and forwards it to the DNS response converter 154.

The DNS response converter 154 analyzes a valid response DNS packet among packets having a source port of UDP 53 and a destination IP address corresponding to the IP address of the managed subscriber, but the IP address of the server corresponding to the domain name query to be connected is determined. The IP address of the subscriber station 100 is transferred to the management server 150.

The management server 156 transmits the IP address of the subscriber station 100 and the IP address of the server corresponding to the domain name to the user access server 180, and the user access server 180 transmits the IP address of the subscriber station 100. After identifying the subscribers, the subscribers can check the advertisement or instructions and provide a link to the corresponding server of the domain name that they want to access or switch pages on the accessed web page.

On the other hand, in the above web page control method, a specific domain name address is input through the subscriber station 100, the user access server 190 of the arrival through the DNS response converter 154 in response to the domain name address query The response packet having the IP address as a translation value may be operated to be delivered to the switch 130 before the response packet for the translated IP address of the specific domain name address arriving through the DNS server 180.

In addition, as a modified embodiment of the method, as a specific domain name address is input through the subscriber station 100, DNS response packets arriving and received through the DNS server 180 are dropped from the switch 130 or the router 160. It can also be operated. When such an operation is made, the management subscriber terminal 100 does not receive a response from the DNS server 180, but receives only a response from the DNS response converter 154.

In detail, the management server 156 sets a specific IP address band to the switch 130 or the router 160 to set a specific IP address band as a destination, and the destination port is DNS service port 53. The packet is dropped so that the UDP response packet from the DNS server 180 is not transmitted to the subscriber station 100.

In connection with the packet filter 152, instead of the step S210, the packet filter 152 and the IP address band to be allocated by the subscriber to be managed by the DHCP server 142 are set. In addition, the subscriber to be managed by the DHCP server 142 is assigned to the IP of one of the set IP band using the IP band selection allocation function basically, and then the subscriber who has confirmed or fulfilled the advertisement or guidance When the DHCP request is leased, an IP other than the IP address band set through the DHCP server 142 may be allocated. In this case, the packet filter 152 does not exclude the packet of the IP address received through the S232 step from the packet target for forwarding to the DNS response converter 154.

As described above, the subscriber access web page control method for internet service management not only can provide more satisfactory customer service by securing a direct communication channel with the subscriber (customer) by the internet service provider that leases the circuit. You can create additional services in the form of

Claims (4)

In the form of subscriber's leased IP address from DHCP server and using Internet service, switch connected between subscriber's internet connection termination device and router, packet filter, DNS response converter, management server, which is connected to switch, and In the method of controlling a web page that a subscriber accesses through a user access server, The management server requests the subscriber to lease the IP address of the subscriber station to the DHCP server to manage IP address information of the assigned subscriber station and DHCP lease reference information of the interface for Internet use; The management server determines whether to be managed by the subscriber using DHCP lease reference information. If the management target is managed, the management server transfers the IP address information assigned to the subscriber to the packet filter. Delivering to; If any subscriber enters a specific domain name address through the subscriber terminal, the switch copies the corresponding packet of the entered domain name address to a packet filter; The packet filter checks whether a packet is transmitted from a subscriber station of a management target based on an IP address received from a management server, and then forwards the packet to a DNS response converter. The DNS response converter analyzes the received packet, and generates and transmits a packet having the IP address of the user access server as a response to the domain name query to the switch; When the managed subscriber station is connected to the user access server by a response packet received from the switch, the user access server provides the subscriber terminal with information about management contents such as advertisements or announcements, and then requests for the management contents of the subscriber. Confirming whether or not; Transmitting, by the user access server, IP address information of the corresponding subscriber station to a management server; The management server excludes the IP address information of the subscriber station received from the IP address information of the subscriber to be managed; And The management server transmits the excluded IP address information to the packet filter and the user access server so that the subscriber can use the DNS related service through the DNS server. Way. The method of claim 1, wherein the web page control method comprises: When a specific domain name address is input through the management target subscriber terminal, a response packet having a translation value of an IP address of a user access server arriving through a DNS response converter in response to a domain name address query arrives through a DNS server. A method of controlling a subscriber access web page for Internet service management, which operates to be delivered to a switch before a response packet for a translated IP address of a specific domain name address. The method of claim 1, wherein the web page control method comprises: As a specific domain name address is input through the managed subscriber station, the DNS response packet that is responded through the DNS server to the subscriber station is dropped from the switch or the router so that it is not delivered, and only the response from the DNS response converter is transmitted to the subscriber station. Subscriber access web page control method for Internet service management, characterized in that it is operated to be delivered. The method of claim 1, wherein the web page control method comprises: After providing the subscriber terminal with information on management contents through the user access server, A subscriber terminal web page control method for controlling an internet service, characterized in that the subscriber terminal is operated to be connected to the corresponding server by a DNS response packet that is received through a DNS server as a specific domain name address is input.

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