WO2017080335A1

WO2017080335A1 - Pppoe network-based dialing method, dialing system, and router

Info

Publication number: WO2017080335A1
Application number: PCT/CN2016/101393
Authority: WO
Inventors: 孙德亮
Original assignee: 上海斐讯数据通信技术有限公司
Priority date: 2015-11-09
Filing date: 2016-09-30
Publication date: 2017-05-18
Also published as: CN105429832A

Abstract

The present invention provides a PPPOE network-based dialing method, dialing system, and router. The dialing method comprises: S1, a terminal receives a dialing instruction sent by a user; S2, judge whether a previous conversation exists, if so, turn to step S3, and otherwise, turn to step S4, the conversation being a conversation between the terminal and an access server; S3, send an ending packet to the access server, such that the access server ends the conversation with the terminal; S4, the terminal enters a conversation initiating stage; and S5, the terminal enters a conversation stage. In the present invention, when a dialing instruction of a user is received, it is judged whether a terminal has a previous conversation, that is, it is judged whether the terminal is normally disconnected from an access server at present, and if not, an ending packet is firstly sent to disconnect the terminal from the access server, thereby facilitating subsequent implementation of a normal conversation connection between the terminal and the access server. The connection speed and efficiency can be improved.

Description

Dialing method, dialing system and router based on PPPOE network

The present application claims priority to Chinese Patent Application No. 201510757263.1, entitled "A PPPOE Network-Based Dialing Method, Dialing System, and Router", the entire contents of which are incorporated herein by reference.

Technical field

The present invention relates to the field of network technologies, and in particular, to a dialing method, a dialing system, and a router based on a PPPOE network.

Background technique

Passive Optical Network PON Uplink Home Gateways are commonly used in three ways: dynamic host configuration protocol DHCP router Internet access, Ethernet-based peer-to-peer protocol PPPOE router dial-up Internet access and bridged dial-up Internet access. Ethernet-based point-to-point protocol PPPOE router dial-up access: Create an upstream router Internet interface in the passive optical network PON uplink home gateway, obtain the network address through the Ethernet-based point-to-point protocol PPPOE dialing mode, and pass the passive optical network PON uplink home gateway The interface processes uplink and downlink network data and provides network services for the Internet access device connected to the home gateway.

PPPOE (point-to-point protocol over ethernet) allows Ethernet hosts to connect to a remote access concentrator via a simple bridging device. Through the PPPOE protocol, the remote access device can control and charge each access user. Compared with the traditional access method, PPPOE has a high performance-price ratio. It is widely used in a series of applications including cell network construction. Currently, the popular broadband access method ADSL (Asymmetric Digital Subscriber Line) The digital subscriber line) uses the PPPOE protocol.

The existing routers support the PPPOE dial-up function. However, when the link is abnormal (for example, the link is broken), that is, during the PPPOE interaction, one of the parties does not exit normally, causing the session to be abnormal, making the PPPOE client unable to be fast. The address is normally dialed, and the link cannot be re-connected normally.

Summary of the invention

In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a dialing method, a dialing system and a router based on a PPPOE network, which are used to solve the problem that the PPPOE link in the prior art cannot be normally linked again after an abnormality occurs.

To achieve the above and other related objects, the present invention provides a dialing method and a dialing system based on a PPPOE network. And a router; a dialing method based on a PPPOE network, the method comprising the following steps: S1, the terminal receives a dialing instruction issued by a user; S2, determines whether there is a previous session, and when it is determined to be a rotating step S3, otherwise Go to step S4, the session is a session between the terminal and the access server; S3, sending a termination packet message to the access server, so that the access server terminates the session with the terminal; S4, the The terminal enters a session initiation phase; S5, the terminal enters a session phase.

In an embodiment of the present invention, the step S2 is specifically: determining whether there is a session variable in the memory, and if it is determined to be, the last session connection is considered to exist, and if it is determined that the session is not present, the session variable includes the previous session. The session ID recorded at the time and the MAC address of the corresponding access server.

In an embodiment of the present invention, the step S4 is specifically: S41, the terminal broadcasts a packet message; and S42, receiving, by the one or more access servers, the grouping message according to the packet message feedback; S43, The terminal selects an access server based on the received packet request message, and sends a unicast session request packet message to the selected access server. S44. Receive an acknowledgement packet message fed back by the selected access server.

In an embodiment of the present invention, the step S43 is specifically: S431, analyzing the received time of giving the packet message, and sorting the receiving time; S432, obtaining the packet receiving message corresponding to the earliest receiving time, selecting and The access server corresponding to the packet message is sent; S433, sending a unicast session request packet message to the selected access server.

In an embodiment of the present invention, the step S5 specifically includes: S51, the terminal performs a session with the selected access server; S52, starts a recording mechanism, records session process data, and the session process data includes a session variable. .

In an embodiment of the present invention, after the step S5, the method further includes: S6. At the end of the session, the terminal sends a termination packet message to the selected access server, and deletes the recorded session variable.

The invention also provides a dialing system based on a PPPOE network, the dialing system comprising a terminal, the terminal comprising: an instruction receiving module, configured to receive a dialing instruction issued by a user; and a determining module connected to the instruction receiving module, For determining whether there is a last session connection, the session is a session between the terminal and the access server; and the terminating session module connected to the determining module is configured to send to the access server when the last session exists Sending a termination packet message, causing the access server to terminate a session with the terminal; a session initiation module connected to the determination module and the termination session module, configured to initiate a session request; and the session initiation module A session module for conducting a session with an access server.

In an embodiment of the present invention, the determining module is specifically configured to: determine whether a session variable exists in the memory, and if it is determined to be, the last session connection is considered to exist, and if it is determined that the session is not present, the session variable includes the last time. The session ID recorded during the session and the MAC address of the corresponding access server.

In an embodiment of the present invention, the session initiation module specifically includes: a packet message initiation module, configured to broadcast And a packet message receiving module is configured to receive a packet message that is received by the one or more access servers based on the packet message feedback; and a selecting module, configured to select an access based on the received packet message a server, and sending a unicast session request packet message to the selected access server; and selecting a sending module, configured to select an access server based on the received given packet message, and send a unicast to the selected access server The session request packet message is sent by the acknowledgment packet receiving module, and is configured to receive the acknowledgment packet message fed back by the selected access server.

The present invention also provides a router, including a dialing system based on a PPPOE network, the dialing system including a terminal, the terminal comprising: an instruction receiving module, configured to receive a dialing instruction issued by a user; and a determining module connected to the instruction receiving module For determining whether there is a last session connection, the session is a session between the terminal and the access server; and the terminating session module connected to the determining module is configured to access the access in the last session The server sends a terminating packet message, so that the access server terminates the session with the terminal; the session initiating module connected to the determining module and the terminating session module is configured to initiate a session request; and the session initiating module Session module for talking to the access server.

The management method, the management system and the mobile phone of the mobile terminal application of the present invention have at least the following beneficial effects:

When the terminal needs to dial up to the Internet and connect to the access server, it is first determined whether the terminal currently has the previous session. When the previous session still exists, the terminal needs to send the termination packet to the access server to ensure the terminal and the access server. Normal disconnection, so that the current connection session can proceed smoothly, which can improve the connection speed and efficiency.

DRAWINGS

1 is a schematic flow chart of an embodiment of a dialing method based on a PPPOE network according to the present invention;

2 is a schematic diagram of a specific process of step S3 of a PPPOE network-based dialing method according to the present invention;

3 is a schematic diagram of a specific process of step S33 of a PPPOE network-based dialing method according to the present invention;

4 is a schematic structural diagram of an embodiment of a PPPOE network-based dialing system according to the present invention;

5 is a schematic diagram of a specific structure of a session initiation module 3 of a PPPOE network-based dialing system according to the present invention;

FIG. 6 is a schematic diagram of a specific structure of a selection sending module 33 of a PPPOE network-based dialing system according to the present invention.

Component label description:

1 command receiving module

2 judgment module

3 Terminating the session module

4 session initiation module

5 session module

41 packet message initiation module

42 Granting a packet message receiving module

43 Select the sending module

44 Confirm Packet Packet Receiving Module

431 analysis unit

432 acquisition unit

433 sending unit

S1 ~ S433 steps

detailed description

The embodiments of the present invention are described below by way of specific examples, and those skilled in the art can readily understand other advantages and effects of the present invention from the disclosure of the present disclosure. The present invention may be embodied or applied in various other specific embodiments, and various modifications and changes can be made without departing from the spirit and scope of the invention. It should be noted that the features in the following embodiments and embodiments may be combined with each other without conflict.

It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention in a schematic manner, and only the components related to the present invention are shown in the drawings, rather than the number and shape of components in actual implementation. Dimensional drawing, the actual type of implementation of each component's type, number and proportion can be a random change, and its component layout can be more complicated.

Example 1

Please refer to FIG. 1 , which is a schematic flowchart of a PPPOE network-based dialing method according to the present invention. The dialing method includes the following steps:

Step S1: The terminal receives a dialing instruction, where the dialing instruction is an online dialing instruction issued by the user;

Specifically, the terminal may be a set-top box, a computer, an ADSL terminal device with a dialing function, etc. In an embodiment of the present invention, the terminal may be a router. When the user starts normally, if the user configures the PPPOE through the WEB webpage, the router starts. PPPOE client process. When the user needs to access the Internet, the Internet dialing command is sent, and the terminal receives the command.

Step S2: determining whether there is a previous session, when it is determined to be the rotating step S3, otherwise going to step S4, the session is a session between the terminal and the access server.

When receiving the online dialing instruction, it indicates that the dialing is required to perform the session connection between the terminal and the access server, but before the session connection, it is necessary to determine whether the terminal has the last session, that is, whether the terminal and the access service are determined. There is a session before the session, and the session is abnormally disconnected. Specifically, it can be judged whether there is a session variable in the memory of the terminal, and if it exists, it indicates that there is a previous session connection, and the connection is abnormally disconnected. The memory is an NVRAM memory (Non-Volatile Random Access Memory). Therefore, when it is determined that there is a session variable, the process goes to step S3. If the determination is no, the process goes to step S4. Further, the The session variable includes the session ID recorded in the previous session and the MAC address of the corresponding access server.

Step S3: Send a termination packet to the access server, so that the access server terminates the session with the terminal.

In this embodiment, the terminal finds the address of the corresponding access server based on the information of the session variable, and sends a termination packet to the corresponding access server, and the access server ends the corresponding session according to the session ID.

In this embodiment, before the session needs to be initiated, it is determined whether the terminal has a previous session. When the storage session variable is confirmed, the termination packet is sent first, and the last session between the terminal and the access server is disconnected to ensure that the terminal is connected. The normal disconnection state between the incoming servers ensures that the terminal and the access server can connect normally and quickly.

Step S4: The terminal enters a session initiation phase;

After ensuring that the terminal and the access server are in a normally disconnected state, the terminal may perform a session initiation phase.

As shown in FIG. 2, it is a specific flowchart of step S4 of the PPPOE network-based dialing method according to the present invention. The step S4 specifically includes:

Step S41: The terminal broadcasts a packet message.

Specifically, at this time, in the session initiation phase, the access server is mainly selected, so the terminal needs to broadcast a packet initiation message (PADI), and each access server can receive the packet packet. Further, the packet message includes at least one tag of a service name type (the tag type field value is 0×0101), and provides information such as a service type and a service scope to the access server. There is no limit to this.

S42. Receive a packet message that is received by the one or more access servers based on the packet packet feedback.

After receiving the packet message, the access server provides a packet message (PADO) according to the service range feedback in the packet message, in response to the request, where the packet request message includes one access. The label of the server name type (the label type field value is 0x0102), and one or more service name type labels indicating information such as the type of service that can be provided to the terminal. Further, when the terminal does not receive the given packet message within a specified time, the terminal resends the packet message and doubles the waiting time to receive the packetized message fed back by the access server. Ensure that the session is initiated smoothly, and when the waiting time exceeds the threshold, stop waiting, feed back the information of the connection timeout to the user, or the access server analyzes the packet based on the received packet, and finds that the packet is abnormal. Then, an empty packet giving message is fed back. At this time, the terminal analyzes the packet according to the packet, and when it is determined that the packet is empty, the user is fed back with the connection abnormality and the connection failure information.

S43. The terminal selects an access server based on the received given packet message, and sends a unicast session request packet message to the selected access server.

The terminal receives the given packet message fed back by the multiple access servers, and selects an appropriate given packet message in the received packet request message, which may be based on the name type tag, the service name type tag content, or the service scope content. Alternatively, it may be selected according to other types. In this embodiment, as a preferred method, an appropriate packet-sending message is selected according to the received chronological order of the packet-sending message, for example, selecting the earliest received packet-receiving message is appropriate. That is, the access server corresponding to the packet received by the earliest received packet is selected as the session object, and the unicast session request packet message (PADR) is sent to the selected access server.

S44. Receive an acknowledgement packet message fed back by the selected access server.

After receiving the unicast session request packet message, the selected access server feeds back a acknowledgment packet message (PADS) to the terminal, where the unicast session request packet message includes a session ID (SESSION-ID). The device also includes a name tag of the access server, a MAC address of the access server, and a service for confirming the service provided to the terminal. At this time, the access server feeds back the acknowledgement packet message, and the terminal configures the username and password. The related configuration information is fed back to the access server, and the access server performs authentication. After the authentication succeeds, the terminal allocates information such as an address to the terminal.

In a preferred embodiment of the present embodiment, as shown in FIG. 3, it is a specific flowchart of step S43 of the PPPOE network-based dialing method according to the present invention. The specific process of the step S43 is as follows:

Step S431, analyzing the received time of giving the packet message, and sorting the receiving time;

In this embodiment, the time point of receiving and receiving the packet message is recorded, and the receiving time is sorted, and may be sorted from first to last, or may be sorted from back to first, which is not limited herein.

Step S432, obtaining a given packet message corresponding to the earliest receiving time, and selecting an access server corresponding to the given packet packet;

According to the given grouping message, the first receiving packet message is obtained, and the access server corresponding to the group packet is selected as the session object.

Step S433, sending a unicast session request packet message to the selected access server.

After selecting the access server, sending a unicast session request packet message (PADR) to the selected access server, the unicast session request packet message must include a service name type tag, and determine to the access server (or Switch) The type of service requested.

When the initiating session is completed, the PPPOE dial-up connection is successful (the terminal and the access server can be in a normal session), and the normal session can be performed. At this time, the terminal and the selected access server both carry the MAC of the access server. Address and dialog ID, then go to step S5;

In step S5, the terminal enters a session phase;

After the connection is successful, the terminal and the access server perform a PPPOE session, and the PPP data may be encapsulated in any PPP encapsulation format.

Specifically, the step S5 specifically includes:

Step S51: The terminal performs a session with the selected access server.

Step S52, starting a recording mechanism, recording session process data, where the session process data includes a session variable;

Specifically, when a normal session can be performed, a recording mechanism is started to record process data during the session, including session variables, that is, information such as the MAC address and session ID of the selected access server.

It should be noted that the above steps S51 and S52 have no time limit and can be performed at the same time, which is not limited herein.

In this embodiment, in an embodiment of the present invention, after the step S5, the method may further include:

S6. At the end of the session, the terminal sends a termination packet message to the selected access server, and deletes the recorded session process data.

It should be noted that the action of sending the abort packet message to the selected access server in step 6 may be at any stage of the session process, and is not limited to the end of the session, which is not limited herein. Further, the abort packet packet is not limited to be sent by the terminal to the access server, and may also be sent by the access server to the terminal, which is not limited herein. Further, when the terminal and the access server are normally disconnected, a termination packet message may occur, indicating that the two are normally disconnected, and the session is terminated. At this time, the session process data needs to be deleted, or only the session data may be deleted. The session variable indicates that the two are normally disconnected. It does not affect the problem that the terminal needs to dial the access server again when the terminal needs to disconnect from the access server again. In the present invention, when the terminal needs dial-up Internet access and performs a connection session with the access server, it is first determined whether the terminal currently has a previous session. When the previous session still exists, the terminal needs to send a termination packet to the access server to ensure the terminal. It is normally disconnected from the access server and prepares for the current connection session, which can improve the connection speed and efficiency.

Example 2

Referring to FIG. 4, the present invention provides a schematic diagram of a PPPOE network-based dialing system, where the system includes a terminal, and the terminal specifically includes:

The instruction receiving module 1 is configured to receive a dialing instruction issued by a user;

Specifically, the terminal may be a set top box, a computer, an ADSL terminal device with a dialing function, etc. In an embodiment of the present invention, the terminal may be a router, and if the user configures the PPPOE through the WEB webpage during normal startup, The router starts the PPPOE client process. When the user needs to access the Internet, the Internet dialing command is sent, and the terminal receives the command.

a judging module 2 connected to the instruction receiving module 1 for determining whether there is a last session connection, where the session is a session between the terminal and the access server;

When the Internet access dialing command is received, it indicates that the session connection between the terminal and the access server needs to be dialed, but before the session connection, it is necessary to determine whether the terminal has the last session, that is, whether the terminal is connected to the server before. There is also a session that is not normally disconnected, that is, the session is abnormally disconnected. Specifically, it can be judged whether there is a session variable in the memory of the terminal, and if it exists, the last session connection exists, and the connection is abnormally disconnected. of. The memory is an NVRAM memory (Non-Volatile Random Access Memory). Therefore, when it is determined that there is a session variable, it is necessary to send a stop packet message to terminate the session. If it is determined otherwise, the session request is started. Further, the session variable includes the session ID recorded in the previous session and the MAC address of the corresponding access server, and may further include other information, which is not limited herein.

The terminating session module 3 connected to the judging module 2 is configured to send a terminating packet message to the access server when it is determined that the last session exists, so that the access server terminates the session with the terminal;

a session initiating module 4 connected to the judging module 2 and the terminating session module 3, for initiating a session request;

The terminal may perform a session initiation phase after ensuring that the terminal and the access server are in a normally disconnected state.

The session module 5 of the session initiation module 4 is configured to perform a session with the access server.

In a preferred implementation of this embodiment, the terminating session module 3 is further configured to send a terminating packet message to the selected access server and delete the recorded session process data at the end of the session.

It should be noted that the action of the termination session module 3 to send a suspension packet message to the selected access server may be at any stage of the session process, and is not limited to the end of the session, which is not limited herein. Further, the abort packet packet is not limited to be sent by the terminal to the access server, and may also be sent by the access server to the terminal, which is not limited herein. Further, when the terminal and the access server are normally disconnected, a termination packet message may occur, indicating that the two are normally disconnected, and the session is terminated. At this time, the session process data needs to be deleted, or only the session data may be deleted. The session variable indicates that the two are normally disconnected. Will not affect the subsequent process, the terminal needs to meet with the access server again. In the case of a call, the problem of normal dialing cannot be performed because the connection is not normally disconnected.

Further, as shown in FIG. 5, it is a specific structural diagram of a session initiation module 4 of a PPPOE network-based dialing system according to the present invention. The session initiation module 4 specifically includes:

a packet message initiating module 41, configured to broadcast a packet message;

And the grouping message receiving module 42 is configured to receive, by the one or more access servers, the grouping message according to the packet message feedback; the selecting module is configured to select an access server based on the received given packet message, and The selected access server sends a unicast session request packet message;

After receiving the packet message, the access server provides a packet message (PADO) according to the service range feedback in the packet message, in response to the request, where the packet request message includes one The tag of the access server name type (the tag type field value is 0x0102), and one or more service name type tags indicating information such as the type of service that can be provided to the terminal. Further, when the terminal does not receive the PADO within the specified time, the terminal resends the packet message and doubles the waiting time to receive the packetized message fed back by the access server to ensure the session initiation phase. Smoothly proceeding, and when the waiting time exceeds the threshold, stop waiting, feed back the information of the connection timeout to the user, or the access server, based on the received packet message, analyzes and finds that the message is abnormal, then feeds back an empty The packet is given, and the terminal analyzes the packet according to the given packet. When it is determined that the packet is empty, the terminal feeds back to the user that the connection is abnormal and the connection fails.

The selecting sending module 43 is configured to select an access server based on the received given packet message, and send a unicast session request packet message to the selected access server;

The terminal receives the given packet message fed back by the multiple access servers, and selects an appropriate given packet message in the received packet request message, which may be selected according to the service type or service range, and may also be based on other types. Alternatively, in this embodiment, as a preferred method, an appropriate packet-sending message is selected according to the received chronological order of the packet-sending message, for example, selecting the earliest received packet-receiving message is appropriate, that is, selecting the earliest received packet. The access server corresponding to the packet message is a session object.

The acknowledgment packet receiving module 44 is configured to receive the acknowledgment packet message fed back by the selected access server.

After receiving the unicast session request packet message, the selected access server feeds back a acknowledgment packet message (PADS) to the terminal, where the unicast session request packet message includes a session ID, and includes an access. Server name type The tag, the MAC address of the access server, and information such as the service provided to the terminal.

Further, as shown in FIG. 6, which is a specific structural diagram of the selection and transmission module 43 of the PPPOE network-based dialing system of the present invention, the selection and transmission module 43 specifically includes:

The analyzing unit 431 is configured to analyze the received time of giving the packet message, and sort the receiving time;

The obtaining unit 432 is configured to obtain a given packet message corresponding to the earliest receiving time, and select an access server corresponding to the given packet packet;

The sending unit 433 is configured to send a unicast session request packet message to the selected access server.

When the initiating session is completed, the PPPOE dial-up connection is successful (the terminal and the access server can be in a normal session), and the normal session can be performed. At this time, the terminal and the selected access server both carry the MAC of the access server. Address and conversation ID. When the connection is successful, the terminal talks with the access server.

Further, the session module 5 is specifically configured to: implement a session between the terminal and the selected access server, and start a recording mechanism to record process data of the session, where the session process data includes a session variable, for example, the connection Information such as the MAC address and session ID of the server.

In the present invention, when the terminal needs dial-up Internet access and performs a connection session with the access server, it is first determined whether the terminal currently has a previous session. When the previous session still exists, the terminal needs to send a termination packet to the access server to ensure the terminal. It is normally disconnected from the access server and prepares for the current connection session, which can improve the connection speed and efficiency.

The present invention also provides a router, which includes the dialing system described in the foregoing embodiment, and the structure and working principle of the dialing system can be referred to the foregoing embodiment, and details are not described herein again.

In summary, the dialing method, the dialing system and the router based on the PPPOE network of the present invention, when receiving the dialing instruction of the user, first determine whether the terminal has the last session, that is, whether the current terminal and the access server are normal. Disconnected, if not disconnected normally, the termination packet is sent first to disconnect the terminal from the access server, which facilitates the subsequent normal session connection between the terminal and the access server, which can improve the connection speed and efficiency. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

The above-described embodiments are merely illustrative of the principles of the invention and its effects, and are not intended to limit the invention. Modifications or variations of the above-described embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and scope of the invention will be covered by the appended claims.

Claims

A dialing method based on a PPPOE network, characterized in that the method comprises the following steps:

S1. The terminal receives a dialing instruction sent by the user.

S2, determining whether there is a previous session, when it is determined to be the rotating step S3, otherwise going to step S4, the session is a session between the terminal and the access server;

S3. Send a termination packet message to the access server, so that the access server terminates the session with the terminal.

S4. The terminal enters a session initiation phase;

S5. The terminal enters a session phase.
The terminal dialing method according to claim 1, wherein the step S2 is specifically: determining whether a session variable exists in the memory, and if it is determined to be, the last session connection is considered to exist, and if it is determined that the session is not present, the The session variable includes the session ID recorded in the previous session and the MAC address of the corresponding access server.
The terminal dialing method according to claim 2, wherein the step S4 is specifically:

S41. The terminal broadcasts a packet message.

S42. Receive a packet packet that is received by one or more access servers based on the packet packet feedback.

S43. The terminal selects an access server based on the received given packet message, and sends a unicast session request packet message to the selected access server.

S44. Receive an acknowledgement packet message fed back by the selected access server.
The terminal dialing method according to claim 3, wherein the step S43 is specifically:

S431. Analyze the received time of receiving the packet message, and sort the receiving time.

S432. Obtain a given packet message corresponding to the earliest receiving time, and select an access server corresponding to the given packet packet.

S433. Send a unicast session request packet message to the selected access server.
The management method according to claim 4, wherein the step S5 specifically comprises:

S51. The terminal performs a session with the selected access server.

S52. Start a recording mechanism, and record session process data, where the session process data includes a session variable.
The terminal dialing method according to claim 5, wherein the step S5 further comprises:

S6. At the end of the session, the terminal sends a termination packet to the selected access server, and deletes The recorded session variable.
A dialing system based on a PPPOE network, the dialing system comprising a terminal, wherein the terminal comprises:

An instruction receiving module, configured to receive a dialing instruction issued by a user;

a judging module connected to the instruction receiving module, configured to determine whether there is a last session connection, where the session is a session between the terminal and the access server;

a terminating session module connected to the determining module, configured to send a terminating packet message to the access server when the last session exists, so that the access server terminates the session with the terminal;

a session initiating module connected to the determining module and the terminating session module, configured to initiate a session request;

a session module with the session initiation module for conducting a session with an access server.
The PPPOE network-based dialing system according to claim 7, wherein the determining module is specifically configured to: determine whether a session variable exists in the memory, and if it is determined, it is considered that there is a previous session connection, and if it is determined to be otherwise Exist, the session variable includes the session ID recorded in the previous session and the MAC address of the corresponding access server.
The PPPOE network-based dialing system according to claim 8, wherein the session initiation module specifically includes:

a packet message initiating module, configured to broadcast a packet to initiate a packet;

And a grouping message receiving module, configured to receive, by the one or more access servers, a grouping message based on the packet message feedback; the selecting module, configured to select an access server based on the received grouping message, and give the The selected access server sends a unicast session request packet message;

Selecting a sending module, configured to select an access server based on the received given packet message, and send a unicast session request packet message to the selected access server;

The acknowledgment packet receiving module is configured to receive the acknowledgment packet message fed back by the selected access server.
A router characterized by comprising a PPPOE network based dialing system according to any one of claims 7 to 9.