WO2014048187A1

WO2014048187A1 - Point-to-point protocol dialing method and home gateway

Info

Publication number: WO2014048187A1
Application number: PCT/CN2013/081801
Authority: WO
Inventors: 孙亚权
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-09-27
Filing date: 2013-08-19
Publication date: 2014-04-03
Also published as: CN103701837B; CN103701837A

Abstract

Embodiments of the present invention disclose a point-to-point protocol (PPP) on-demand dialing method. The method comprises: when a data packet is detected reaching a local PPP network interface, identifying the data packet according to a source of the detected data packet; and determining whether the data packet permits triggering a PPP network connection dialing, and triggering the PPP network connection dialing when permission is available. Embodiments of the present invention further disclose a home gateway. By using technical solutions of the embodiments of the present invention, it is ensured that the dialing is triggered only when a data packet with a user specified source passes a PPP network interface, thereby saving network access expenses.

Description

Point-to-point protocol dialing method and home gateway

The present invention relates to Point-to-Point Protocol (PPP) dialing technology in network communication, and in particular to a PPP dialing method and a home gateway. Background technique

PPP dialing is a common method used by the home gateway to access the Internet. In the PPP on-demand dialing mode, the home gateway monitors the data packets arriving at the PPP network interface and triggers the PPP network connection dialing when the data packets pass. , or keep the PPP network connection dial-up success status. When no data packets pass after a successful dial-up, the PPP network connection is placed in the un-dial state.

The above data packets arriving at the home gateway PPP network interface include the following types:

The data packet generated by the PC on the local area network (LAN) is forwarded by the home gateway;

The locally sent data packet generated by the home gateway local application is sent by the home gateway;

A data packet transmitted from the WAN side of the wide area network (WAN) is received by the home gateway.

When the user desires to set a certain type of data packet to pass the home gateway PPP network interface, the dialing is triggered to save the Internet access fee. The filtering rule can be set in the home gateway firewall module to achieve this purpose, but from the implementation point of view, In this way, the firewall module needs to be extended to identify the source of the data packet, which increases the difficulty of module coupling. Moreover, if the firewall function of the home gateway is turned off or the firewall module is reduced to reduce the cost of the home gateway, the user cannot specify the data of a certain source. Dialing is triggered only when the packet passes the PPP network interface of the home gateway. Reduce the cost of Internet access. Summary of the invention

In view of the above, the main purpose of the embodiment of the present invention is to provide a PPP dialing method and a home gateway, which can ensure that only when a data packet of a user-specified source passes through the PPP network interface of the home gateway, the dialing is triggered, thereby saving the cost of the Internet.

To achieve the above objective, the technical solution of the embodiment of the present invention is implemented as follows:

The embodiment of the present invention provides a PPP on-demand dialing method, where the method includes: when the home gateway detects that a data packet arrives at the local PPP network interface, the data packet is identified according to the source of the detected data packet;

Determining whether the data packet is allowed to trigger a PPP network connection dialing, and triggering a PPP network connection dialing when allowed.

Preferably, the determining whether the data packet is allowed to trigger the PPP network connection dialing, and triggering the PPP network connection dialing when allowed, includes:

Query whether the data packet corresponds to the local configuration, and if so, trigger the PPP network connection dialing; otherwise, continue to perform the operation of detecting whether the data packet arrives at the local PPP network interface.

Preferably, before the querying the local configuration, the method further includes:

Determining whether the data packet is valid according to one or more of a route matching rule, a firewall filtering rule, and a quality of service (QoS) rule, and if yes, performing whether the local configuration in the query is performed The data packet corresponds to the operation of the identifier; otherwise, the operation of detecting whether the data packet arrives at the local PPP network interface is performed.

Preferably, the triggering the PPP network connection dialing comprises:

Determine whether the current PPP network connection is in the dial-up success state. If yes, keep the current status of the PPP network connection; otherwise, trigger the PPP network connection dial-up until the dial-up is successful. The embodiment of the present invention further provides a home gateway, where the home gateway includes: a detecting unit, an identifying unit, a querying unit, and a triggering unit;

The detecting unit is configured to detect whether a data packet arrives at the local PPP network interface, and the identifier unit is configured to: after the detecting unit detects that the data packet arrives at the local PPP network interface, according to the detected data packet Source identifying the data message;

The query unit is configured to query whether the identifier corresponding to the data packet is in the local configuration;

The triggering unit is configured to trigger a PPP network connection dialing after the query unit queries the identifier corresponding to the data packet.

Preferably, the home gateway further includes:

The first determining unit is configured to determine, according to one or more of the route matching rule, the firewall filtering rule, and the QoS rule, that the data packet is valid after the identifier unit identifies the data packet;

The query unit is further configured to: when the determination result of the first determining unit is yes, query whether the local data has an identifier corresponding to the data packet;

The detecting unit is further configured to: when the determining result of the first determining unit is negative, continue to detect whether a data packet arrives at the local PPP network interface; or configured to: query, in the query unit, that the detected data packet is not queried After the identification, continue to detect whether a data packet arrives at the local PPP network interface.

Preferably, the home gateway further includes: a second determining unit and a connection holding unit; wherein, the second determining unit is configured to determine, after the query unit queries the identifier corresponding to the data packet, the current PPP network connection Whether it is in the dialing success state;

The connection holding unit is configured to maintain when the determination result of the second determining unit is YES

PPP network connection dialing success status;

The triggering unit is further configured to trigger the PPP when the determination result of the second determining unit is negative. Dial the network connection until the dialup is successful.

In the technical solution provided by the embodiment of the present invention, different identifiers are allocated to the data packets that reach the PPP network interface to distinguish the source of the data packet; and the local configuration is used to query whether the identifier is present, to determine the datagram of the source. Whether the text is allowed to trigger dialing and triggers dialing when allowed. In this way, the dialing number is triggered only when the data packet of the user-specified source passes the PPP network interface, so that the undesired data of the user triggers the dialing, thereby saving the cost of the Internet and being simple and convenient. DRAWINGS

1 is a schematic flowchart of an implementation process of a PPP dialing method according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a structure of a home gateway according to an embodiment of the present invention. detailed description

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

FIG. 1 is a schematic flowchart of an implementation process of a PPP dialing method according to an embodiment of the present invention, including the following steps:

Step 101: When it is detected that a data packet arrives at the local PPP network interface, the data packet is identified according to the source of the detected data packet.

In a preferred implementation of step 101, before the data packet is identified, a PPP network connection is further configured for the detected data packet, the PPP network connection is in an un-dial state, and is set to an On Demand dialing mode; The data packets are classified into the following three types according to the source: the data packets generated by the LAN and the PCs sent by the home gateway are sent by the home gateway; the data packets generated by the local gateway and the local application generated by the home gateway, The data packet sent by the WAN side and transmitted by the WAN side line is received by the home gateway.

At step 101, a preferred implementation of the data message is identified based on the source of the data message. In the formula, when it is detected that the data packet arrives at the local PPP network interface, according to the attribute information of the network interface that receives the data packet in the data structure allocated for the data packet in the related art, the data packet is determined. Source; after determining the source of the data packet, assign the same identifier to the data packet of the same source to distinguish the data packets from different sources;

The source of the data packet that arrives at the PPP network interface can be implemented as follows: If the network interface attribute is WAN, the data packet is a data packet sent by the WAN side and transmitted through the WAN side line; If the network interface attribute is a LAN, the data packet is a data packet that is forwarded by the LAN side and is sent by the PC connected to the home gateway; if the data packet does not have the network interface attribute information, the data packet is sent locally, and the family The data packet generated by the gateway local application; the identifiers assigned to the three source data packets can be represented by a combination of binary digits 01, 10, 11 respectively. Generally, each data packet is assigned a corresponding data structure, and The combination of the binary digits corresponding to the source identifier of the data packet can be placed in the reserved field of the data structure. In the subsequent processing, the field of the storage identifier is read, and the identifier of the data packet can be known.

Step 102: Determine whether the data packet is allowed to trigger a PPP network connection dialing, and trigger a PPP network connection dialing when allowed.

In a preferred implementation of step 102, the local configuration is queried for the identifier corresponding to the data packet, and if yes, the PPP network connection dialing is triggered; otherwise, the detecting continues to detect whether the data packet arrives at the local PPP. The operation of the network interface.

In a preferred implementation of step 102, before determining whether the data packet is allowed to trigger a PPP network connection dialing, the datagram may be determined according to one or more of a route matching rule, a firewall filtering rule, and a QoS rule. If the file is valid, if it is valid, perform the operation of querying the local configuration for the corresponding identifier of the data packet; otherwise, perform the operation of detecting whether the data packet arrives at the local PPP network interface.

Let the user preset the identifier corresponding to the source of the data packet that is expected to trigger the dialing in the local configuration. For example, if 10, 11, the data packet sent by the WAN side and transmitted over the WAN side line is set. 01) does not trigger dialing, and 10, 11 corresponds to the source data packet, and can only trigger dialing when it is judged to be a valid data packet according to one or more of the matching rule, firewall filtering rule and QoS rule;

The route matching rule, the firewall filtering rule, and the QoS rule are the rules for determining whether the data packet is valid in the related art, and the user may pre-configure according to the requirement, and the description is not repeated; wherein, according to the route matching rule, the firewall filtering rule, and One or more of the QoS rules, when determining whether a data packet is valid, can be implemented in the following manner for different types of data packets:

1) When the data packet is forwarded by the LAN side or the data packet sent by the WAN side, before the data packet arrives at the PPP network interface, it is determined whether the data packet is valid according to the route matching rule and the firewall filtering rule. If yes, The data packet is allowed to pass through the PPP network interface. Otherwise, the data packet is discarded. Correspondingly, when the data packet that is allowed to pass through the PPP network interface reaches the PPP network interface, the processing is performed according to step 101: according to the data packet. The source identifies the data packet; after the data packet passes the PPP network interface, determines whether the data packet is valid according to the QoS rule, and if yes, performs step 102; determines whether the data packet is allowed to trigger the PPP network connection dialing; Otherwise, discard the data packet and continue to detect whether a data packet arrives at the local PPP network interface.

2) When the data packet is a data packet sent locally, when the data packet arrives at the PPP network interface, the processing is performed according to step 101: the data packet is identified according to the source of the data packet; After the PPP network interface, the data matching message is determined according to the route matching rule, the firewall filtering rule, and the QoS rule. If yes, the processing is performed according to step 102; determining whether the data packet is allowed to trigger the PPP network connection dialing; otherwise, The data packet is discarded and continues to detect whether a data packet arrives at the local PPP network interface.

In a preferred implementation manner of triggering PPP network connection dialing in step 102, it is determined whether the current PPP network connection is in a dialing success state, and if so, maintaining a PPP network connection. Pre-state; otherwise, trigger PPP network connection dialing until dialing is successful.

In a preferred implementation manner of triggering the PPP network connection dialing in step 102, after the PPP network connection dialing is triggered, the data packet may be periodically detected to pass the PPP network interface. If yes, the PPP network connection dialing success status is maintained. ; Otherwise, place the PPP network connection in an undialed state.

2 is a schematic structural diagram of a home gateway according to an embodiment of the present invention, where the home gateway includes: a detecting unit 21, an identifying unit 22, a querying unit 23, and a triggering unit 24;

The detecting unit 21 is configured to detect whether a data packet arrives at the local PPP network interface. The identifier unit 22 is configured to detect, according to the detected data, when the detecting unit 21 detects that the data packet arrives at the local PPP network interface. The source of the message identifies the data message;

The query unit 23 is configured to query whether the detected data packet corresponds to the local configuration;

The triggering unit 24 is configured to trigger the PPP network connection dialing after the query unit 23 queries the identifier corresponding to the detected data packet.

The home gateway further includes: a first determining unit 25, configured to: after the identifier unit 22 identifies the data packet, determine whether the data packet is based on one or more of a route matching rule, a firewall filtering rule, and a QoS rule. Effective

The query unit 23 is further configured to: when the determination result of the first determining unit 25 is YES, query whether there is an identifier corresponding to the data packet in the local configuration;

The detecting unit 21 is further configured to continue to detect whether a data packet arrives at the local PPP network interface when the determination result of the first determining unit 25 is negative, and is further configured to not query the detected datagram in the query unit 23. After the identifier corresponding to the text, it continues to detect whether a data packet arrives at the local PPP network interface.

The home gateway further includes: a second determining unit 26 and a connection holding unit 27; wherein the second determining unit 26 is configured to query the query unit 23 for the corresponding data packet After the identification, it is determined whether the current PPP network connection is in a dialing success state;

The connection holding unit 27 is configured to maintain the current state of the PPP network connection when the determination result of the second determining unit 26 is YES;

The triggering unit 24 is further configured to trigger a PPP network connection dialing when the determination result of the second determining unit 26 is negative until the dialing is successful.

In an actual application, the detecting unit 21, the identifying unit 22, the querying unit 23, the triggering unit 24, the first determining unit 25, the second determining unit 26, and the connection holding unit 27 may all be implemented by a central processing unit (CPU) in the home gateway. , Central Processing Unit), Digital Signal Processor (DSP) or Field Programmable Gate Array (FPGA).

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Industrial applicability

In the embodiment of the present invention, when detecting that a data packet arrives at the local PPP network interface, the data packet is identified according to the source of the detected data packet; determining whether the data packet is allowed to trigger the PPP network connection dialing, and allowing The PPP network connection dialing is triggered to ensure that the dialing is triggered only when the data packet of the specified source passes the PPP network interface, which saves the Internet access fee.

Claims

claims

1. A point-to-point protocol PPP on-demand dialing method, the method includes:

When it is detected that a data packet arrives at the local PPP network interface, the data packet is identified according to the source of the detected data packet;

Determine whether the data packet is allowed to trigger PPP network connection dial-up, and trigger it when allowed

PPP network connection dial-up.

2. The method according to claim 1, wherein determining whether the data message is allowed to trigger PPP network connection dialing, and triggering PPP network connection dialing when allowed, includes: querying whether the data is present in the local configuration The identifier corresponding to the packet, if yes, triggers the PPP network connection dial-up; otherwise, continues to perform the operation of detecting whether a data packet reaches the local PPP network interface.

3. The method according to claim 2, wherein before querying whether there is an identifier corresponding to the data message in the local configuration, the method further includes:

According to one or more of the routing matching rules, firewall filtering rules and quality of service QoS rules, determine whether the data message is valid, and if so, execute the query to see if there is a corresponding identifier of the data message in the local configuration. Operation; otherwise, perform the operation of detecting whether a data packet reaches the local PPP network interface.

4. The method according to claim 1, 2 or 3, wherein the triggering the PPP network connection dial-up includes:

Determine whether the current PPP network connection is in the dial-up successful state. If so, maintain the current state of the PPP network connection; otherwise, trigger the PPP network connection dial-up until the dial-up is successful.

5. A home gateway, the home gateway includes: a detection unit, an identification unit, a query unit and a trigger unit; wherein,

The detection unit is configured to detect whether a data packet arrives at the local PPP network interface; the identification unit is configured to detect that a data packet arrives at the local PPP network when the detection unit After accessing the network interface, the data packet is identified according to the source of the detected data packet; the query unit is configured to query whether there is an identification corresponding to the data packet in the local configuration;

The triggering unit is configured to trigger PPP network connection dialing after the querying unit queries the identifier corresponding to the data message.

6. The home gateway according to claim 5, wherein the home gateway further includes: a first judgment unit configured to, after the identification unit identifies the data message, determine based on routing matching rules, firewall filtering rules and QoS rules. One or more of them, determine whether the data message is valid;

The query unit is also configured to query whether there is an identifier corresponding to the data message in the local configuration when the judgment result of the first judgment unit is yes;

The detection unit is also configured to continue to detect whether a data message arrives at the local PPP network interface when the judgment result of the first judgment unit is no; and is also configured to query the corresponding data message of the detected data message when the query unit does not After identification, continue to detect whether any data packets arrive at the local PPP network interface.

7. The home gateway according to claim 6, wherein the home gateway further includes: a second judgment unit and a connection maintenance unit; wherein,

The second judgment unit is configured to judge whether the current PPP network connection is in a successful dial-up state after the query unit queries the identifier corresponding to the data message;

The connection maintenance unit is configured to maintain the PPP network connection dial-up success state when the judgment result of the second judgment unit is yes;

The triggering unit is also configured to trigger PPP network connection dialing until the dialing is successful when the judgment result of the second judgment unit is no.