KR100638002B1 - Method and apparatus for configuring point-to-point protocol session at ADSL modem instead of terminal - Google Patents

Abstract

The present invention aims to improve the speed by reducing the number of protocols installed in the PC and to establish a stable LAN-based programming device to establish a point-to-point protocol session on behalf of a terminal with an ADSL modem that eliminates the possibility of conflict with other programs. And method, which transfers the PPP session setting function performed by the PC to the ADSL modem and removes the PPP from the program loaded on the PC, and minimizes the function, and uses the Ethernet-based private Internet address between the PC and the ADSL modem. Because it is a 1: 1 LAN configuration, it can be easily installed. It can improve the speed by drastically reducing the number of protocols installed in the PC, and stable LAN-based programming eliminates the possibility of conflict with other programs. .

Description

Method and apparatus for configuring point-to-point protocol session at ADSL modem instead of terminal}

1 is a network connection configuration diagram of an apparatus for establishing a PPP session on behalf of a terminal with an Asymmetric Digital Subscriber Line (ADSL) modem of the present invention;

2 is a phase shift diagram of an apparatus for establishing a PPP session on behalf of a terminal with an ADSL modem of the present invention;

3 is an apparatus configuration diagram for establishing a PPP session on behalf of a terminal with an ADSL modem of the present invention;

4 is a flowchart of a control means of an apparatus for establishing a PPP session on behalf of a terminal with an ADSL modem of the present invention;

5 is a flowchart of information transmitting means of a PC terminal of an apparatus for establishing a PPP session on behalf of a terminal with an ADSL modem of the present invention.

<Description of Symbols for Major Parts of Drawings>

101: PC

102: Ethernet connection between PC terminal and ADSL modem

103: ADSL modem 104: ADSL line

105: ADSL Multiplexer (DSLAM: Digital Subscriber Line Access Multiplexer)

106: network access server (NAS: Network Access Server)

107: Internet Connection

301: control means

302: input queue of the control means

303: input queue of the control packet processing means

304: input queue of the link monitoring means

305: control packet processing means

306: link monitoring means

307: Internet address translation means

308: information transmission means of the PC

The present invention relates to an apparatus and method for establishing a point-to-point protocol session on behalf of a terminal with an Asymmetric Digital Subscriber Line (ADSL) modem, and more particularly, a private Internet address on a PC by displaying an account and password input window. The account and password are transmitted to the ADSL modem via an Ethernet connection.The ADSL modem establishes a PPP session with the account and password received from the PC and provides Internet access to the PC terminal by converting a private Internet address and a public Internet address. The present invention relates to a method and an apparatus.

With the recent increase in the number of Internet access lines using Asymmetric Digital Subscriber Line (ADSL) technology, each ADSL provider has a personal computer to secure the IP address (Internet Protocol Address) and to authenticate subscribers. Use Point-to-Point Tunneling Protocol (PPTP) provided by Windows 95 or Windows 98 installed on PC (Personal Computer) or Ethernet-based PPP program (PPPoE: Point-to-Point Protocol over Ethernet). Provides PPP-based Internet access service. However, in the case of using the PPTP, since various protocols are used together, a decrease in Internet connection speed occurs, and in the case of using the PPPoE, problems such as installation are not easy and conflicts with other programs on the PC.

Accordingly, the present invention has been made to solve the above-described problems, and the PPP session setting function performed on the PC is transferred to the ADSL modem to remove the PPP from the program mounted on the PC, thereby minimizing the function and the PC and the ADSL modem. The purpose of the present invention is to provide an apparatus and method for establishing a point-to-point protocol session on behalf of a terminal with an ADSL modem that allows simple installation of the configuration.

In addition, another object of the present invention is to reduce the number of protocols mounted on the PC to improve the speed and to enable a stable LAN-based programming to eliminate the possibility of conflict with other programs point-to-point protocol on behalf of the terminal with an ADSL modem An apparatus and method for establishing a session are provided.                         

In order to achieve the above objects, an apparatus for establishing a point-to-point protocol session on behalf of a terminal with an ADSL modem according to a preferred embodiment of the present invention, in the apparatus for establishing a point-to-point protocol session on behalf of a terminal with an ADSL modem,

Information transmitting means embedded in the terminal and transmitting control information input by a user to the ADSL modem;

Control packet processing means connected to the terminal by Ethernet and installed in the ADSL modem, and responsible for transmitting control signals and messages with the terminal;

Control means installed in the ADSL modem and processing control packets received through the control packet processing means according to the collected link state information;

Link monitoring means installed in the ADSL modem for monitoring the state of the link and providing the information to the control means in accordance with the link state information request signal of the control means; And

 And an Internet address conversion means installed in the ADSL modem and performing a task of converting a private Internet address given to the terminal and a public Internet address obtained through authentication by the ADSL modem, and controlled by the control means.

In addition, the method for establishing a point-to-point protocol session on behalf of a terminal with an ADSL modem according to an embodiment of the present invention, in the method for establishing a point-to-point protocol session on behalf of a terminal with an ADSL modem,

Transmitting a link establishment signal to the ADSL modem together with the authentication information when the user inputs the authentication information to the terminal;                         

Establishing, by the ADSL modem, a point-to-point protocol session with a network access server using the authentication information and attempting authentication;

Providing a network layer protocol on a point-to-point protocol layer by assigning a public Internet address to the ADSL modem as the authentication succeeds; And

While providing the network layer protocol, the ADSL modem stops providing the network layer protocol due to the loss of a point-to-point protocol link carrier, the elapse of the idle period determined by the network access server, or the point-to-point protocol link closure request inputted by the terminal user. Terminating the point protocol link.

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

1 is a network connection diagram of an apparatus for establishing a Point-to-Point Protocol (PPP) session on behalf of a terminal with an Asymmetric Digital Subscriber Line (ADSL) modem of the present invention.

The ADSL multiplexer 105 provides only a simple Asynchronous Transfer Mode (ATM) based connection function between the ADSL modem 103 and the network access server 106.

The ADSL modem 103 and the PC 101 are connected to each other via Ethernet 102, and the authentication information (user account and password) input by the user from the PC 101 is information of the PC 101 together with the link setting signal. It is transmitted to the ADSL modem 103 via a transmission means (not shown).

The ADSL modem 103 establishes a PPP session with the network access server 106 and attempts to authenticate with the network access server 106 using the authentication information received from the PC 101. At the same time that authentication is successfully completed, the network access server 106 provides a network layer protocol on the PPP layer by assigning a public Internet address to the ADSL modem 103.

In order to enable the PC 101 to access the Internet during the network layer protocol provision period, the ADSL modem 103 uses the private Internet address assigned to the PC 101 and the public Internet assigned from the network access server 106. Performs translation by matching addresses. At this time, in order to prevent restrictions on some application services due to the use of private Internet addresses, private Internet addresses and public Internet addresses may be matched 1: 1 or N: 1.

That is, when the PC 101 connects to the Internet and transmits data, the PC 101 uses the private Internet address of its own as a starting point, and the public Internet address of the server 107 on the Internet to be connected as a destination. When the transport packet is created and transmitted to the ADSL modem 103, the ADSL modem 103 converts the private Internet address (PC address) included in the transport packet header into a public Internet address assigned from the network access server 106. The packet is transmitted to the server 107 on the Internet.

On the other hand, when the PC 101 connects to the Internet and receives data, the ADSL modem 103 uses the private Internet address (the address of the PC) assigned from the network access server 106 included in the received packet header. Address), and transmits the packet to the PC 101.

During the provision of the network layer protocol, the ADSL modem 103 stops providing the network layer protocol due to the loss of the PPP link carrier, the elapsed idle time defined by the network access server 106, or the PPP link closure request. Terminate the link.

2 is a phase shift diagram of an apparatus for establishing a PPP session on behalf of a terminal with an ADSL modem of the present invention.

The link idle phase 201 is in a state where no PPP link is ready. At this time, when the user executes the authentication information transmission program and the program requests the link establishment 202 from the ADSL modem 103, the ADSL modem 103 receives it and transitions to the link establishment phase 204.

The link establishment phase 204 is a step of establishing a PPP connection with the ADSL modem 103 and the network access server 106. This connection is completed by exchanging a PPP session establishment request packet between the ADSL modem 103 and the network connection server 106. If there is no response from the network access server 106 or the PPP link establishment fails (203) due to a problem of the ADSL line, it returns to the link idle phase 201 and informs the PC 101 of this.

Once the PPP link establishment is complete 205, it immediately transitions to the authentication phase 206.

In the authentication phase 206, the network access server 106 performs authentication on authentication information received from a user. At this time, authentication can be retried according to a given number of times. If authentication fails in this phase (208), the link is terminated. If successful (207), the network access server 106 transitions to the network layer protocol topology 209 by assigning a public Internet address to the ADSL modem 103. Done.

The network layer protocol topology 209 provides a user with an Internet connection through Internet address translation. At this time, if the user requests termination, the ADSL modem 103 transitions to the link termination phase 211 by closing 210 the PPP link with the network access server 106.

The link termination phase 211 is performed by a termination request in authentication failure and network layer protocol phase and returns to the link idle phase 201 by terminating the PPP link 212.

3 is an apparatus configuration diagram for establishing a PPP session on behalf of a terminal with an ADSL modem of the present invention.

The control packet processing means 305, the link monitoring means 306, and the control means 301 are executed at the same time after the booting of the ADSL modem 103 is completed, and the Internet address translation means 307 of the control means 301 It is executed by request.

The information transmitting means 308 of the PC transmits the control information input from the PC 101 to the ADSL modem 103 through the Ethernet connected between the PC 101 and the ADSL modem 103.

The control packet processing means 305 transmits a control signal received from the PC 101 to the input queue 302 of the control means 301 via an Ethernet connection with the PC 101, and the control means 301 controls the control packet. The message transmitted to the input queue 303 of the processing means 305 is transmitted to the PC 101.

The link monitoring means 306 monitors the state of the link and then the input queue of the control means 301 according to the status information request signal transmitted by the control means 301 to the input queue 304 of the link monitoring means 306. Information is sent to 302, and the authentication result and the link termination state transmit the information to the input queue 302 of the control means without the request of the control means 301.

The Internet address translation means 307 is executed at the request of the control means 301, and the ADSL modem 103 and the private Internet address given to the PC 101 to ensure data transmission and reception between the PC 101 and the Internet network. The public internet address obtained through this authentication is translated. Further, the conversion operation of the Internet address conversion means 307 is terminated at the request of the control means 301.

The control means 301 processes the control packet received through the control packet processing means 305 according to the state information collected through the link monitoring means 306 and controls the Internet address translation means 307. Perform.

Next, the operation of the control means of the apparatus for establishing a PPP session on behalf of the terminal by the ADSL modem according to an embodiment of the present invention will be described with reference to the flowchart of FIG. 4.

When power is supplied to the ADSL modem 103 and the booting is completed (401), it waits for a signal to be received from the input queue (402).

If the signal received in the input queue 302 is the authentication information and link establishment request signal collected from the control packet processing means 305 (403), the PPP link is established (404) and authentication is attempted (405).

If the signal received by the input queue 302 is an authentication result signal from the link monitoring means 306 (406), the authentication result is transmitted to the control packet processing means 305 (407). At this time, the control packet processing means 305 transmits the successful authentication to the PC (101).

As a result, if authentication succeeds (408), the Internet address translation means 307 is activated (409), and if it fails, the input queue 302 waits for signal reception. Re-authentication is attempted at the request of a PC user.

The PC 101 also requests status information of the ADSL modem 103. If the signal received in the input queue 302 is a status information request signal from the control packet processing means 305 (410), the link monitoring means 306 Request the status information (411).

If the signal received in the input queue 302 is the status information from the link monitoring means 306 (412), the current status information is transmitted to the control packet processing means 305 that requested the status information (413).

When the PC 101 requests termination of the link, if the link termination request signal transmitted through the control packet processing means 305 is received by the input queue 302 (414), the PPP link is terminated (415).

As a result (by request) or due to the loss of the PPP link carrier or the elapse of the idle time determined by the network access server 106, the link monitoring means 306 signals that the link has been terminated and inputs a signal to the input queue 302. ), The Internet address translation means 307 is stopped (417), and the link termination signal is transmitted to the control packet processing means 305 (418).

5 is a flowchart of information transmitting means of a PC terminal of an apparatus for establishing a PPP session on behalf of a terminal with an ADSL modem of the present invention.

The information transmission means 308 of the PC terminal 101 is executed (501) and a packet for requesting the status information of the ADSL modem 103 is transmitted to the ADSL modem 103 (502).

When a control packet is received from the ADSL modem 103 (503), it is determined whether the control packet means status information or an authentication result or a link termination result.

If the control packet received from the ADSL modem 103 is state information (YES at 504), the current state of the ADSL modem 103 is determined based on this.

As a result, if the current state of the ADSL modem 103 is a network layer protocol topology (505), the user is prohibited from inputting authentication information (514) and the user is informed that the connection is already completed (515). If the current state of the modem 103 is the link idle phase (506), the user is required to enter authentication information (507) and waits for authentication information to be entered (508).

When the authentication information is input (508), the user is requested to input a link establishment request (509) and waits until the link establishment request is input (510).

When the link establishment request is input, the link establishment request and the authentication information are transmitted to the ADSL modem 103 (511), and the process returns to step 503 to wait for the authentication result to be transmitted from the ADSL modem 103.

On the other hand, if the control packet received from the ADSL modem 103 is the authentication result (YES at 512), and if the authentication is not successful (OK at 513) (NO at 513), the process returns to the step 507 and the user is returned to the user. Re-enter authentication information.

On the contrary, if authentication is successful (YES at 513), entry of authentication information from the user is prohibited (514), and the user is notified that the connection is completed (515). The user can then access the Internet.

After the access completion notification, the user is requested to input a link termination request (516), and waits until the user link termination request is input (517).

When the link termination request is input, a link termination request is transmitted to the ADSL modem 103 (518), and the process returns to step 503 where the link termination result is waited for from the ADSL modem 103 to be transmitted.

If the control packet received from the ADSL modem 103 is a link termination result (YES at 519), and if the link termination has failed (NO at 520) at step 516 The operation returns to the operation of requesting the user to re-enter the link termination request. If the link termination is successful, the user is notified of the link termination (521) and the program is terminated (522).

If the control packet received from the ADSL modem 103 is not a link termination result, the ADSL modem 103 requests status information again.

According to the present invention as described above, by transferring the PPP session setting function performed on the PC to the ADSL modem, the function can be minimized by removing PPP from the program mounted on the PC, and the Ethernet-based connection between the PC and the ADSL modem Since it is a 1: 1 LAN configuration using a private Internet address, it can be easily installed and can be speeded up by drastically reducing the number of protocols loaded on the PC. It also enables stable LAN-based programming and conflicts with other programs. The room is removed.

On the other hand, the present invention is not limited to the above-described embodiment, but can be modified and modified within the scope not departing from the gist of the present invention, such modifications and changes should be regarded as belonging to the following claims. will be.

Claims (14)

An apparatus for establishing a point-to-point protocol session on behalf of a terminal with an Asymmetric Digital Subscriber Line (ADSL) modem, Information transmitting means embedded in the terminal and transmitting control information input by a user to the ADSL modem; Control packet processing means connected to the terminal by Ethernet and installed in the ADSL modem, and responsible for transmitting control signals and messages with the terminal; Control means installed in the ADSL modem and processing control packets received through the control packet processing means according to the collected link state information; Link monitoring means installed in the ADSL modem for monitoring the state of the link and providing the information to the control means in accordance with the link state information request signal of the control means; And And an Internet address conversion means installed in the ADSL modem and performing a task of converting a private Internet address given to the terminal and a public Internet address obtained through authentication by the ADSL modem, and controlled by the control means. A device for establishing a point-to-point protocol session on behalf of a terminal with an ADSL modem. The method of claim 1, And the control packet processing means, the link monitoring means, and the control means start an operation simultaneously when the ADSL modem is booted up. The method of claim 2, The control means establishes a point-to-point protocol link and attempts to authenticate a point-to-point protocol session on behalf of the terminal if the received signal is authentication information and a link establishment request signal from the control packet processing means. Device to set up. The method of claim 2, The control means transmits an authentication result to the control packet processing means if the received signal is an authentication result signal from the link monitoring means, and if the authentication is successful, operates the Internet address translation means. Device for establishing a point-to-point protocol session on behalf of a terminal. The method of claim 4, wherein The control packet processing means for receiving the authentication result signal is an apparatus for establishing a point-to-point protocol session on behalf of the terminal with an ADSL modem, characterized in that for transmitting the success or failure of the authentication to the terminal. The method of claim 2, And the control means requests a status information from the link monitoring means if the received signal is a status information request signal from the control packet processing means. The method of claim 2, The control means transmits the current status information to the control packet processing means that requested the status information if the received signal is the status information from the link monitoring means. Device to set up. The method of claim 2, And the control means terminates the point-to-point protocol link if the received signal is a link termination request signal transmitted through the control packet processing means. The method of claim 2, If the received signal is a link termination signal transmitted through the link monitoring means, the control unit stops the Internet conversion means and transmits the link termination signal to the control packet processing means. Device to establish a point-to-point protocol session. The method of claim 1, When the information transmission means receives a control packet corresponding to the status information from the ADSL modem, the current transmission means determines the current state of the ADSL modem, and as a result, prohibits the input of authentication information if the network layer protocol is in phase and is already connected to the user. If the ADSL modem is in a link idle phase, the user is requested to input authentication information. When the authentication information is input, the user is requested to input a link setting request. Transmitting a link establishment request and authentication information to the ADSL modem and waiting for an authentication result to be transmitted from the ADSL modem. The method of claim 10, When the authentication result is received, the information transmission means checks whether the authentication is successful, and if the authentication fails, reenter the authentication information to the user again. If the authentication is successful, the user is prohibited from inputting the authentication information and the access is completed to the user. After notifying that the link termination request from the user is input, the ADSL modem links termination request to the ADSL modem characterized in that to terminate the point-to-point protocol link between the terminal and the ADSL modem point-to-point protocol on behalf of the terminal The device that establishes the session. In a method for establishing a point-to-point protocol session on behalf of a terminal with an ADSL modem, Transmitting a link establishment signal to the ADSL modem together with the authentication information when the user inputs the authentication information to the terminal; Establishing, by the ADSL modem, a point-to-point protocol session with a network access server using the authentication information and attempting authentication; Providing a network layer protocol on a point-to-point protocol layer by assigning a public Internet address to the ADSL modem as the authentication succeeds; And While providing the network layer protocol, the ADSL modem stops providing the network layer protocol due to the loss of a point-to-point protocol link carrier, the elapse of the idle period determined by the network access server, or the point-to-point protocol link closure request inputted by the terminal user. A method for establishing a point-to-point protocol session on behalf of a terminal with an ADSL modem, comprising the step of terminating a point protocol link. delete The method of claim 12, During the network layer protocol provision period, the ADSL modem converts the private Internet address assigned to the terminal and the public Internet address assigned from the network access server in a 1: 1 manner to enable the terminal to access the Internet. Method of establishing a point-to-point protocol session on behalf of a terminal with an ADSL modem.

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