CN101483569B - Card type broadband network access system and method - Google Patents

Abstract

The invention relates to a card type broadband network access system and method. The system includes: a card reader terminal, used to authenticate the user terminal accessing the broadband network, and forward the DHCP request of the user terminal and the IP address assigned to the user terminal; a layer 2 switch, used to forward the DHCP request of the user terminal and for The IP address assigned by the user terminal, and upload/download the data information required by the user terminal; the three-layer switch is used to assign the IP address to the user terminal. The method includes: the card reader terminal authenticates the user terminal accessing the broadband network, and receives the DHCP request of the user terminal after the authentication is passed; the layer 2 switch receives the DHCP request forwarded by the card reader terminal and sends it to the layer 3 switch; the layer 3 switch receives After receiving the DHCP request, assign an IP address to the user terminal; the user terminal receives the IP address through a Layer 2 switch and a card reader terminal.

Description

Card type broadband network access system and method

technical field

The invention relates to network communication technology, in particular to a card type broadband network access system and method, and belongs to the field of communication technology.

Background technique

Existing broadband network access technologies mainly include dial-up, ADSL and WLAN access methods. Dial-up Internet access requires complex computer settings, user name and password input, and its maximum uplink rate is only 64Kbps, which is far from meeting the needs of uploading large amounts of data, pictures and text. Asymmetrical Digital Subscriber Line (ADSL) is currently a relatively common technology for realizing broadband network access through telephone lines. Due to the limitations of its technology itself, the maximum uplink rate of the current ADSL is only 512Kbps. Although it is much larger than dial-up Internet bandwidth, it is still not suitable for users who upload large amounts of data, especially media users. WLAN is a relatively popular technology for accessing the Internet through wireless means. The maximum uplink/downlink rate of WLAN widely used at present is 11Mbps. Transmission is erratic.

In addition, users use various types of terminals when accessing the network, and incompatibility will inevitably occur during the process of accessing the network.

Contents of the invention

The purpose of the present invention is to provide a card-type broadband network access system and method, so that various types of user terminals can access the network without barriers, each user terminal can have an uplink bandwidth that meets the requirements, and the data transmission quality is stable.

In order to achieve the above purpose, the present invention provides a card-type broadband network access system, including:

The broadband card is used to provide authentication information required for authenticating user terminals accessing the broadband network;

A card reader terminal, configured to authenticate the user terminal by reading the authentication information, and forward the DHPA request of the user terminal and the IP address assigned to the user terminal;

A Layer 2 switch, configured to forward the DHA request of the user terminal and the IP address assigned to the user terminal, and upload/download the data information required by the user terminal;

A layer-3 switch, configured to assign an IP address to the user terminal.

The present invention also provides a card-type broadband network access method, including:

The broadband card is connected to the card reader terminal, and the card reader terminal authenticates the user terminal accessing the broadband network by reading the authentication information inside the broadband card, and receives the dynamic host allocation protocol request of the user terminal after passing the authentication ;

The layer-2 switch receives the DHA request forwarded by the card reader terminal, and sends it to a layer-3 switch;

After receiving the DHPA request, the layer-3 switch allocates an IP address for the user terminal;

The user terminal receives the IP address through the Layer 2 switch and the card reader terminal.

It can be seen from the above technical solutions that the card-type broadband network access system and method of the present invention realize the Internet access requirements of various user terminals by using card-type access, and the beneficial effects are as follows:

1. Use DHCP to assign IP addresses to users. Any operating system of any type and language can successfully obtain an IP address from the system as long as it supports the DHCP function;

2. The uplink bandwidth of a single access can reach 1000Mbps, which can basically meet the various needs of users in terms of transmission speed;

3. Based on the wired network, the quality of data transmission is stable.

Description of drawings

FIG. 1 is a schematic diagram of a scene of a multi-area card-type broadband network access system of the present invention;

Fig. 2 is the schematic structural diagram of the first embodiment of the card type broadband network access system of the present invention;

3 is a schematic structural diagram of a second embodiment of the card-type broadband network access system of the present invention;

Fig. 4 is a schematic flow chart of the first embodiment of the card-type broadband network access method of the present invention;

FIG. 5 is a schematic flowchart of a second embodiment of the card-type broadband network access method of the present invention.

Detailed ways

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Figure 1 is a schematic diagram of the scene of the multi-area card-type broadband network access system of the present invention. One set; if the venues are not large and the distance is relatively close, a venue group can also be established, that is, multiple venues share a set of card broadband network access systems, such as venues three and four.

FIG. 2 is a schematic structural diagram of the first embodiment of the card-type broadband network access system of the present invention. As shown in FIG. 2 , it includes a user terminal 1 , a card reader terminal 2 , a layer 2 switch 3 and a layer 3 switch 4 . Among them, according to the number of user terminals that need to simultaneously access the broadband network in an area, such as a venue, multiple card reader terminals 2, multiple two-layer switches 3, and multiple three-layer switches 4 can be set; A layer switch 3 can be connected to multiple card reader terminals 2, and a layer-3 switch 4 can be connected to multiple layer-2 switches 3. In the example shown in FIG. 2 , a layer-3 switch 4 is connected to a layer-2 switch 3 , and a layer-2 switch 3 is connected to two card-reading terminals 2 , and each card-reading terminal 2 generally corresponds to a user terminal 1 . Among them, the card reader terminal 2 is used to authenticate the user terminal 1 accessing the broadband network by reading the authentication information, and forward the Dynamic Host Configuration Protocol (Dynamic Host Configuration Protocol, DHCP) request of the user terminal 1 and the allocation of the user terminal 1. IP address; Layer 2 switch 3 is used to forward the DHCP request of user terminal 1 and the IP address allocated for user terminal 1, and upload/download the data information required by user terminal 1; Layer 3 switch 4 is used to allocate user terminal 1 IP address.

The card-type broadband network access system of this embodiment authenticates the user terminals connected by actively reading the authentication information through the card reader terminal, and does not need the cumbersome process of inputting user names and passwords to authenticate the user terminals accessing the network; DHCP is used to assign IP addresses to users. Any operating system of any type and language can successfully obtain an IP address from the system as long as it supports the DHCP function; The bandwidth can reach 1000Mbps, which can basically meet the various needs of users in terms of transmission speed, and based on the wired network, the quality of data transmission is stable.

Fig. 3 is a schematic structural diagram of the second embodiment of the card-type broadband network access system of the present invention. As shown in FIG. 3 , it includes a user terminal 1 , a card reader terminal 2 , a layer 2 switch 3 , a layer 3 switch 4 and a broadband card 5 . Wherein, the broadband card 5 is used to access the card reader terminal 2, using the authentication information inside the broadband card 5, the card reader terminal 2 authenticates the user terminal 1; the card reader terminal 2 is used to authenticate the user terminal 1 accessing the broadband network Authenticate, and forward the DHCP request of user terminal 1 and the IP address allocated for user terminal 1; Layer 2 switch 3 is used to forward the Dynamic Host Configuration Protocol (Dynamic Host Configuration Protocol, DHCP) request of user terminal 1 and the IP address allocated for user terminal 1 IP address, and upload/download the data information required by user terminal 1; Layer 3 switch 4 is used to assign IP address for user terminal 1.

The three-layer switch 4 can specifically include: the IP address storage module 41 is used to store the IP address that needs to be distributed to the user terminal 1; the recording module 42 is used to record the corresponding Media Access Control (Media Access Control, MAC) of the user terminal 1 assigned the IP address ) address; the detection module 43 is used to regularly detect whether the user terminal 1 assigned an IP address by the layer-3 switch 4 is also connected to the broadband network, so as to manage the IP address resources that the layer-3 switch 4 has.

The card-type broadband network access system of this embodiment authenticates the user terminals connected by actively reading the authentication information through the card reader terminal, and does not need the cumbersome process of inputting user names and passwords to authenticate the user terminals accessing the network; The way of DHCP is to assign IP addresses to users. Any type and language of the operating system can successfully obtain IP addresses from the system as long as it supports the DHCP function. Since a layer 2 switch is used for broadband network access, the uplink bandwidth of a single user terminal access It can reach 1000Mbps, which can basically meet the various needs of users in terms of transmission speed, and based on the wired network, the data transmission quality is stable. In addition, the IP address assigned by the layer-3 switch can be managed dynamically in real time through the detection module in the layer-3 switch.

Fig. 4 is a schematic flowchart of the first embodiment of the card-type broadband network access method of the present invention. As shown in Figure 4, combined with the card-type broadband network access system shown in Figure 2 and Figure 3 above, the following steps are included:

Step 401, the card reader terminal 2 authenticates the user terminal 1 accessing the broadband network by reading the authentication information, and receives the DHCP request of the user terminal 1 after passing the authentication;

Step 402, the Layer 2 switch 3 receives the DHCP request forwarded by the card reader terminal 2, and sends it to the Layer 3 switch 4;

Step 403, after receiving the DHCP request, the layer-3 switch 4 assigns an IP address to the user terminal 1;

Step 404 , the user terminal 1 receives the IP address through the Layer 2 switch 3 and the card reader terminal 2 .

Through the above steps 401-404, the user terminal 1 obtains the IP address assigned to it, and then connects to the broadband network through the layer 2 switch device to upload and download data information.

The method for accessing the card-type broadband network in this embodiment authenticates the accessed user terminal by actively reading the authentication information through the card reader terminal, without requiring the user to enter the cumbersome process of user name and password to authenticate the user terminal accessing the network; The way of DHCP is to assign IP addresses to users. Any type and language of the operating system can successfully obtain IP addresses from the system as long as it supports the DHCP function. Since a layer 2 switch is used for broadband network access, the uplink bandwidth of a single user terminal access It can reach 1000Mbps, which can basically meet the various needs of users in terms of transmission speed, and based on the wired network, the data transmission quality is stable.

FIG. 5 is a schematic flowchart of a second embodiment of the card-type broadband network access method of the present invention. As shown in Figure 5, in combination with the card-type broadband network access system shown in Figure 3 above, the following steps are included:

Step 501, connect the broadband card 5 to the card reader terminal 2, and use the authentication information inside the broadband card 5 to authenticate the user terminal 1;

The broadband card includes identification information, time information when the user terminal can access the network, etc.;

Step 502, after passing the authentication, the card reader terminal 2 receives the DHCP request from the user terminal 1;

Step 503, the Layer 2 switch 3 receives the DHCP request forwarded by the card reader terminal 2, and sends it to the Layer 3 switch 4;

After step 504, layer-3 switch 4 receives DHCP request, distributes IP address for user terminal 1;

Step 505, Layer 3 switch 4 records the MAC address corresponding to the user terminal 1 that assigns the IP address;

Step 506 , the user terminal 1 receives the IP address through the layer 2 switch 3 and the card reader terminal 2 .

The method for accessing the card-type broadband network also includes a step in which the layer-3 switch 4 regularly detects whether the user terminal 1 assigned an IP address is still connected to the broadband network, so as to manage the IP address resources owned by the layer-3 switch 4 .

The method for accessing the card-type broadband network in this embodiment authenticates the accessed user terminal by actively reading the authentication information through the card reader terminal, without requiring the user to enter the cumbersome process of user name and password to authenticate the user terminal accessing the network; The way of DHCP is to assign IP addresses to users. Any type and language of the operating system can successfully obtain IP addresses from the system as long as it supports the DHCP function. Since a layer 2 switch is used for broadband network access, the uplink bandwidth of a single user terminal access It can reach 1000Mbps, which can basically meet the various needs of users in terms of transmission speed, and based on the wired network, the data transmission quality is stable. In addition, the IP address assigned by the layer-3 switch can be managed dynamically in real time through the detection module in the layer-3 switch.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it still Modifications or equivalent replacements can be made to the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims (5)

1. A card type broadband network access system, characterized in that it comprises: The broadband card is used to provide authentication information required for authenticating user terminals accessing the broadband network; A card reader terminal, configured to authenticate the user terminal by reading the authentication information, and forward the DHPA request of the user terminal and the IP address assigned to the user terminal; A Layer 2 switch, configured to forward the DHA request of the user terminal and the IP address assigned to the user terminal, and upload/download the data information required by the user terminal; A layer-3 switch, configured to assign an IP address to the user terminal. 2. The card type broadband network access system according to claim 1, wherein the three-layer switch comprises: An IP address storage module, configured to store an IP address that needs to be assigned to the user terminal; a recording module, configured to record the media access control address corresponding to the user terminal assigned the IP address; The detection module is used to regularly detect whether the user terminal assigned an IP address by the layer-3 switch is still connected to the broadband network, so as to manage the IP address resources owned by the layer-3 switch. 3. A card type broadband network access method, characterized in that, comprising: The broadband card is connected to the card reader terminal, and the card reader terminal authenticates the user terminal accessing the broadband network by reading the authentication information inside the broadband card, and receives the dynamic host allocation protocol request of the user terminal after passing the authentication ; The layer-2 switch receives the DHA request forwarded by the card reader terminal, and sends it to a layer-3 switch; After receiving the DHPA request, the layer-3 switch allocates an IP address for the user terminal; The user terminal receives the IP address through the Layer 2 switch and the card reader terminal. 4. The card type broadband network access method according to claim 3, characterized in that, after the three-layer switch receives the DHPA request, it distributes the IP address and the user terminal for the user terminal. The receiving of the IP address by the terminal through the Layer 2 switch and the card reader terminal also includes: The layer-3 switch records the media access control address corresponding to the user terminal assigned the IP address. 5. The card type broadband network access method according to claim 4, further comprising: The layer-3 switch regularly detects whether the user terminal to which the IP address is allocated is still connected to the broadband network, so as to manage the IP address resources owned by the layer-3 switch.

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