CN102035867A - Multipath PPPoE (Point-to-Point Protocol over Ethernet) fusion gateway system - Google Patents
Multipath PPPoE (Point-to-Point Protocol over Ethernet) fusion gateway system Download PDFInfo
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Abstract
The invention discloses a multipath PPPoE (Point-to-Point Protocol over Ethernet) fusion gateway system. A plurality of PPPoE networks in any network environment are accessed into a double-layer network through the multipath PPPoE fusion gateway system to form a plurality of PPPoE export links, the multipath PPPoE fusion gateway system receives and recognizes PPPoE messages of a terminal user in the double-layer network, automatically searches a PPPoE export link matched to a terminal user account logged in for the first time through a polling mechanism and binds and records the searched PPPoE export link with the terminal user account; if the same account is logged in again, the passage link of the account is allocated to the bound PPPoE export link.
Description
Technical field
The present invention relates to a kind of network communications technology, relate in particular to a kind of multichannel PPPoE Convergence gateway system.
Background technology
The purpose of PPPoE (Point-to-Point Protocol Over Ethernet) is that (between the both sides that the ppp protocol requirement communicates is point-to-point relation by the extensibility of economic local area network technology (Ethernet) and PPP(Point-to-Point Protocol) and management controlled function are combined, be not suitable for the Ethernet of broadcast-type and the network of other multipoint access types), not only the user who inserts for the use bridged ethernet provides a kind of broadband access means, access control and the charging that can also provide convenience simultaneously.By the PPPoE agreement, Internet Service Provider and telecom operators just can utilize reliable and familiar technology to quicken to dispose the high speed internet business.It makes the service provider by modes such as Ethernet, hfc plant, all-optical network, wireless networks, and is more simple during the multi-user's that provides support broadband inserting service.
PPPoE is to find the PPPoE server by broadcasting in the discovery stage, so, in one two layers net territory, can not insert many PPPoE servers simultaneously, multichannel PPPoE network inserts one two layers net territory simultaneously, can cause the user to communicate by letter.Second-level runner can adopt the mode of physical segmentation to insert multichannel PPPoE network usually, and physically network is merotomized, and a PPPoE network divides a part of user.The benefit of doing like this is temporary transient many PPPoE links access problems that solve, its defective is: the network operation cost is increased, and make the complicated network structureization, user's networking speed descends, and the user split scattered here and there, be difficult to realize the integration utilization of the network equipment, cause the wasting of resources.
At present, the international and domestic method and apparatus that does not also have special at the access of multichannel PPPoE mixture of networks.
Summary of the invention
The present invention proposes a kind of multichannel PPPoE Convergence gateway system, the PPPoE network of many arbitrary network environment is inserted in the double layer network by multichannel PPPoE Convergence gateway system, form many PPPoE outbounds, receive, discern the PPPoE message of the terminal use in this double layer network by multichannel PPPoE Convergence gateway system, to terminal use's account number of logining for the first time, automatically search PPPoE outbound with terminal use's account number coupling by polling mechanism, with the PPPoE outbound that finds number account number binding and record with the terminal use; If same account is logined once more, the current link assignment of this account number is arrived the PPPoE outbound of binding.
Described polling mechanism is:
(1) after multichannel PPPoE Convergence gateway system receives terminal use's PPPoE message,
1) catch the movable initial package of finding of PPPoE that the terminal use sends the PPPoE discovery stage in the message, promptly the PADI bag extracts terminal use's MAC Address in the PADI message;
2) judge in the current PADI message whether bound the PPPoE outbound in the pairing terminal use's table of MAC Address: if bind, the PPPoE outbound that then the PADI message is assigned to binding sends; If binding does not then enter step 3);
3) judge whether current PADI message is registered in terminal use's table:
If not registration, this terminal use's list item of initialization, the PADI message transmission network interface that is provided with in terminal use's table is a PPPoE outbound one, and adds in terminal use's table, enters step 4);
If register, the PADI message transmission network interface that is provided with in terminal use's table is next bar PPPoE outbound, and next bar PPPoE outbound of poll enters step 4);
4) according to being provided with in terminal use's table, revise this PADI message transmission network interface, detect the authorization information that the PPPoE server returns in real time; Wherein, authorization information comprises: terminal user authentication is confirmed bag in PAP, the chap authentication agreement;
Be proved to be successful, then with current PPPoE outbound and current account number binding and record;
Checking is unsuccessful, then returns step 3);
If all PPPoE outbounds all can't be proved to be successful, then enter step (two);
(2) number of the account configured list coupling:
1], catch the terminal use and send the movable initial package of finding of PPPoE that PPPoE in the message finds the stage, promptly the PADI bag extracts terminal use's MAC Address in the PADI message;
2], judge in the current PADI message whether bound the PPPoE outbound in the pairing terminal use's table of MAC Address: if bind, the PPPoE outbound that then the PADI message is assigned to binding sends; If binding does not then enter step 3];
3], judge whether current PADI message is registered in terminal use's table:
If not registration, this terminal use's list item of initialization, the PADI message transmission network interface that is provided with in terminal use's table is a PPPoE outbound one, and adds in terminal use's table, enters step 4];
If register, the PADI message transmission network interface that is provided with in terminal use's table is next bar PPPoE outbound, and next bar PPPoE outbound of poll enters step 4];
4], according to being provided with in the terminal use table, revise this PADI message transmission network interface; Catch this terminal use and send user account information in pppoe session stage PAP in the message or the chap authentication protocol package, extract terminal use's number of the account, make it with the number of the account configured list in number of the account relatively:
If number of the account can be mated with number of the account in the number of the account configured list in terminal use's message, then with current PPPoE outbound and current account number binding and record;
If can not mate, then return step 3];
If all PPPoE outbound all can't the match is successful, then return step ().
The invention allows for a kind of device that is used for multichannel PPPoE Convergence gateway system, it comprises: message identification module, message control module, system's top control module, command analysis module and Debugging message module; Its syndeton is as follows:
The message identification module, the message of reception, identification terminal user and PPPoE server is caught movable initial package and the PPP authentication bag found of PPPoE in the message; Data after handling are sent to message control module;
Message control module is revised PPPoE packet header, and control PPPoE message is at the current link of many PPPoE links;
System's top control module communicates to connect with the message identification module, to message identification module write control information;
The command analysis module is resolved the control command of keeper to the PPPoE data, and control command is transferred to system's top control module;
The Debugging message module, print data information is to control desk;
By command analysis module and Debugging message module, resolve keeper's control command, number of the account configured list, pass on keeper's control command, number of the account configured list by system's top control module to the message identification module.
After terminal use PPPoE message arrives the message identification module, catch the terminal use and send movable initial (PADI) bag of finding of PPPoE that PPPoE in the message finds the stage, extract terminal use's MAC Address in the message, according to the instruction in system's top control module, coupling number of the account configured list and many PPPoE outbounds of poll, and result sent to message control module, message control module is revised PPPoE message transmission interface according to the message identification module, and packet is forwarded to the PPPoE server.
The invention allows for a kind of device that is used for multichannel PPPoE Convergence gateway system, it comprises: message control module, system's top control module and command analysis module;
Description of drawings
Fig. 1, terminal use's message send signal;
Fig. 2, PPPoE message format;
Fig. 3, system flow block diagram;
Embodiment
Reduce the network operation cost, to the network resource integration utilization, speed up Web searches, the best method that it is contemplated that at present is exactly to make any terminal use be connected to the PPPoE outbound that the user needs in the optional position from double layer network, but the method and apparatus that why does not now exist multichannel PPPoE mixture of networks to insert mainly contains following reason:
If adopt the access way of prior art, in one two layers net territory, insert many PPPoE servers simultaneously, because PPPoE finds the PPPoE server in the discovery stage by broadcasting, the situation that will occur is, have a plurality of PPPoE servers and all receive terminal use's checking request, these PPPoE servers all can send echo message to the terminal use, because factors such as network quality and speed of response of server, the echo message of a certain PPPoE server A is the incoming terminal user at first, no matter whether PPPoE server A and terminal use are proved to be successful, the network transferring equipment all can be assigned to terminal use's PPPoE outbound the PPPoE outbound corresponding with the PPPoE server A, the network transferring equipment can't discern the PPPoE server A and whether the terminal use is proved to be successful, if PPPoE server A and end-user verification failure (echo message at first incoming terminal user's server be exactly the probability of correct server be quite low), will cause the user to be connected, and all the time terminal use's request be pointed to wrong server with correct server; In order to solve this technical barrier, make the utilization of conventional network resources energy reasonable integration, the inventor has proposed the present invention program through concentrating on studies, and is specific as follows,
Referring to Fig. 1, the PPPoE network of many arbitrary network environment is inserted in the double layer network by multichannel PPPoE Convergence gateway system, form many PPPoE outbounds, receive, discern the PPPoE message of the terminal use in this double layer network by multichannel PPPoE Convergence gateway system, to terminal use's account number of logining for the first time, search PPPoE outbound with terminal use's account number coupling by polling mechanism, with the PPPoE outbound that finds number account number binding and record with the terminal use; If same account is logined once more, the current link assignment of this account number is arrived the PPPoE outbound of binding.
Wherein, polling mechanism (also can make opinion ask algorithm) has been brought into play important function here, its meaning is: if receive the server of PADI message is not correct server, echo message according to server, gateway of the present invention can identify it, and the PADI message is forwarded to another server, constantly seeks correct server, this is with regard to the request that solved the terminal use problem of the server of directed mistake all the time, and its concrete treatment step is as follows:
After multichannel PPPoE Convergence gateway system receives terminal use's PPPoE message,
1) the PPPoE message to the terminal use carries out the movable discovery of PPPoE initialization, obtains the PADI message, detects the authentication agreement in the PADI message, record terminal use's MAC Address and account number; The PPPoE message format as shown in Figure 2;
2) judged whether to the pairing terminal use's account number binding of current PADI message the PPPoE outbound: if bind, the PPPoE outbound that then the PADI message is assigned to binding sends; If binding does not then enter step 3);
3) revise the PADI heading,, detect the authorization information that the PPPoE server returns in real time PADI message poll one by one in many PPPoE outbounds:
Be proved to be successful, then with current PPPoE outbound and current account number binding and record;
Checking is unsuccessful, then revises the PADI heading, continues next bar PPPoE outbound of poll;
4) if all PPPoE outbounds all can't be proved to be successful, then again to many PPPoE outbounds poll one by one, until a certain PPPoE server authentication success or terminal use stop to send the PPPoE message or.
From the step of front as can be seen, multichannel PPPoE Convergence gateway system has not only realized seeking the function of correct server, also to terminal use's link information, the login account number has been carried out record, this just provides condition for the statistics of the operation information of server, make second-level runner carry out accounting management to the user, also just obtained the initiative of the Internet business, and need not to purchase an expensive PPPoE access device that is used for the physical segmentation network respectively for each PPPoE network, a plurality of PPPoE networks can insert double layer network by a multichannel PPPoE Convergence gateway system, cut operating costs greatly.
Another thing that plays a significant role in the present invention is the protocol authentication of the PPP message of terminal use's PPPoE message and PPPoE server, detect and the checking between the two, protocol authentication, detect and verify the conventional treatment that is actually network service in the prior art, its meaning in the present invention is embodied in: protocol authentication, the information that detects and verify is to be used for identification, the binding terminal use logins the foundation of account number and PPPoE outbound, this has guaranteed that each terminal use logins the only corresponding PPPoE outbound of account number (single PPPoE outbound can corresponding a plurality of terminal uses login account number)
Embodiment:
With PPPoE message, PPP message as terminal user identification information,
PPPoE has discovery stage (Discovery stage) and PPP session stage (PPP Session stage).
There are 5 steps in the discovery stage:
1, movable initial (PADI) bag of finding of PPPoE
The terminal use sends PADI (PPPoE Active Discovery Initiation) bag, and this moment, destination address was set to broadcast address.The CODE territory is set to 0x09, and simultaneously, SESSION_ID must be set to 0x0000.
That PADI bag must comprise is correct, type is the label of service name (Service-Name), is used to point out that the terminal use is in requested service.Other tag types that also can comprise any amount.Whole PADI bag (comprising PPPoE packet header) must be no more than 1484 bytes (8), increases relaying session id (Relay-Session-Id) label so that there are enough spaces to be used for relay agent.
2, PPPoE is movable finds to propose that (PADO) wraps
3, movable request (PADR) bag of finding of PPPoE
4, movable session affirmation (PADS) bag of finding of PPPoE
5, movable termination (PADT) bag of finding of PPPoE
The proof procedure of PAP:
PAP is twice Handshake Protocol, and it comes the user is verified by user name and password.The PAP proof procedure is as follows: but when the link mutual data transmission of two ends, the user name of the side's of being verified transmission local terminal and password are to authentication, authentication is according to the subscriber's meter or the radius server of local terminal, check whether this user is arranged, whether password is correct, as correctly then sending the ACK message to the opposite end, the announcement opposite end has been allowed to enter the next stage negotiation, otherwise send the NAK message, announcement opposite end authentication failed, can't have only when verifying that only number of times reaches certain value this moment directly with link-down, just can close link, prevent because of misinformation, network interferences etc. cause unnecessary LCP negotiations process again.The characteristics of PAP are to transmit user name and password in mode expressly on network, just as being intercepted and captured and might cause great threat to network security in transmission course.Therefore, it is applicable to the environment relatively low to network security requirement;
The proof procedure of CHAP:
CHAP is the three-way handshake agreement, and its feature is: only in the transmission over networks user name, and transmission user password not, therefore, its fail safe is than PAP height.The proof procedure of CHAP is: at first send some messages that produce at random by authentication to the side of being verified, and simultaneously the host name of local terminal is sent to the side of being verified on subsidiary together, when the side of being verified receives the opposite end to the checking request (Challenge) of local terminal, just search the user password word according to the host name of authentication in this message and the subscriber's meter of local terminal, as find user identical in the subscriber's meter with the authentication host name, the convenient message ID that uses, this user's key generates with the Md5 algorithm and replys, Response will reply subsequently and the host name of oneself is sent back to, after authentication is received this and is replied, use message ID, the password (key) that we keep and at random message obtain a result with the Md5 algorithm, reply comparison with the side of being verified, return corresponding results according to comparative result.
The concrete processing: when receiving terminal use PADI message for the first time, from the PADI message, extract terminal use's MAC Address, and in internal memory, generate a record to, and modification PADI heading for this terminal use, poll PPPoE outbound, polling algorithm is as follows:
As shown in Figure 1, during the ether subscriber dialing, at first initiate a PADI message, Fig. 2 is a message format:
When TERM interface (connect user side and get network interface) when receiving the terminal message, extract the value of EtherType in the message, if being worth, this is 0x8863, extract the value in CODE territory in the message, if being worth, this is 0x09, judge whether terminal has distributed the current link of a fixing PPPoE link as current terminal, if not then according to polling algorithm, specify the current link of article one PPPoE link for this terminal as current message temporarily, next, all data messages of this terminal are all current from the PPPoE link of appointment, wan interface (PPPoE outbound network interface) receives the message from the PPPoE server, when receiving the login success message that mails to the terminal use, bind this outlet and be the terminal use.When receiving the login failure message that mails to the terminal use, next bar PPPoE link of poll then.PPP has two kinds of authentication agreements (PAP, CHAP agreement), obtains to mail to the terminal use when logining message, handle respectively.
When the TERM interface receives the terminal message once more, extract the value of EtherType in the message, if being worth, this is 0x8863, extract the value in CODE territory in the message, if being worth, this is 0x09, use the current link of the PPPoE link of binding as current terminal,
With number of the account in the PPP session as terminal user identification information:
When TERM interface (connecing the network interface of user side) when receiving terminal use's message, extract the value of EtherType in the message, if being worth, this is 0x8863, extract the value in CODE territory in the message, if being worth, this is 0x09, judge whether terminal has distributed the current link of a fixing PPPoE link as current terminal, if not then according to polling algorithm, specify the current link of article one PPPoE link for this terminal as current message temporarily, next, all data messages of this terminal are all current from the PPPoE link of appointment, the TERM interface receives the PPP message of self terminal, when receiving the login message that mails to the terminal use, extract terminal use's login account, mate with the number of the account in the user list, when the match is successful, the PPPoE outbound of configuration was as the outbound of terminal use's data message in the user bound tabulation.PPP has two kinds of authentication agreements, obtains to mail to the terminal use when logining message, handle respectively.
When the TERM interface receives the terminal message once more, extract the value of EtherType in the message, if being worth, this is 0x8863, extract the value in CODE territory in the message, if being worth, this is 0x09, use the current link of the PPPoE link of binding as current terminal.
Claims (3)
1. multichannel PPPoE Convergence gateway system, it is characterized in that: the PPPoE network of many arbitrary network environment is inserted in the double layer network by multichannel PPPoE Convergence gateway system, form many PPPoE outbounds, receive, discern the PPPoE message of the terminal use in this double layer network by multichannel PPPoE Convergence gateway system, to terminal use's account number of logining for the first time, automatically search PPPoE outbound with terminal use's account number coupling by polling mechanism, with the PPPoE outbound that finds number account number binding and record with the terminal use; If same account is logined once more, the current link assignment of this account number is arrived the PPPoE outbound of binding.
2. multichannel PPPoE Convergence gateway according to claim 1 system, it is characterized in that: described polling mechanism is: after (one) multichannel PPPoE Convergence gateway system receives terminal use's PPPoE message,
1) catch the movable initial package of finding of PPPoE that the terminal use sends the PPPoE discovery stage in the message, promptly the PADI bag extracts terminal use's MAC Address in the PADI message;
2) judge in the current PADI message whether bound the PPPoE outbound in the pairing terminal use's table of MAC Address: if bind, the PPPoE outbound that then the PADI message is assigned to binding sends; If binding does not then enter step 3);
3) judge whether current PADI message is registered in terminal use's table:
If not registration, this terminal use's list item of initialization, the PADI message transmission network interface that is provided with in terminal use's table is a PPPoE outbound one, and adds in terminal use's table, enters step 4);
If register, the PADI message transmission network interface that is provided with in terminal use's table is next bar PPPoE outbound, and next bar PPPoE outbound of poll enters step 4);
4) according to being provided with in terminal use's table, revise this PADI message transmission network interface, detect the authorization information that the PPPoE server returns in real time; Wherein, authorization information comprises: terminal user authentication is confirmed bag in PAP, the chap authentication agreement;
Be proved to be successful, then with current PPPoE outbound and current account number binding and record;
Checking is unsuccessful, then returns step 3);
If all PPPoE outbounds all can't be proved to be successful, then enter step (two);
(2) number of the account configured list coupling:
1], catch the terminal use and send the movable initial package of finding of PPPoE that PPPoE in the message finds the stage, promptly the PADI bag extracts terminal use's MAC Address in the PADI message;
2], judge in the current PADI message whether bound the PPPoE outbound in the pairing terminal use's table of MAC Address: if bind, the PPPoE outbound that then the PADI message is assigned to binding sends; If binding does not then enter step 3];
3], judge whether current PADI message is registered in terminal use's table:
If not registration, this terminal use's list item of initialization, the PADI message transmission network interface that is provided with in terminal use's table is a PPPoE outbound one, and adds in terminal use's table, enters step 4];
If register, the PADI message transmission network interface that is provided with in terminal use's table is next bar PPPoE outbound, and next bar PPPoE outbound of poll enters step 4];
4], according to being provided with in the terminal use table, revise this PADI message transmission network interface; Catch this terminal use and send user account information in pppoe session stage PAP in the message or the chap authentication protocol package, extract terminal use's number of the account, make it with the number of the account configured list in number of the account relatively:
If number of the account can be mated with number of the account in the number of the account configured list in terminal use's message, then with current PPPoE outbound and current account number binding and record;
If can not mate, then return step 3];
If all PPPoE outbound all can't the match is successful, then return step ().
3. device that is used for multichannel PPPoE Convergence gateway system, it is characterized in that: it comprises: message identification module, message control module, system's top control module, command analysis module and Debugging message module; Its syndeton is as follows:
The message identification module, the message of reception, identification terminal user and PPPoE server is caught movable initial package and the PPP authentication bag found of PPPoE in the message; Data after handling are sent to message control module;
Message control module is revised PPPoE packet header, and control PPPoE message is at the current link of many PPPoE links;
System's top control module communicates to connect with the message identification module, to message identification module write control information;
The command analysis module is resolved the control command of keeper to the PPPoE data, and control command is transferred to system's top control module;
The Debugging message module, print data information is to control desk
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| CN103795687A (en) * | 2012-10-30 | 2014-05-14 | 中国电信股份有限公司 | Method and system for realizing multi-user account login and home gateway |
| CN104009961A (en) * | 2013-02-25 | 2014-08-27 | 杭州华三通信技术有限公司 | PPPoE session ID distribution method and equipment thereof |
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| WO2016173269A1 (en) * | 2015-04-29 | 2016-11-03 | 华为技术有限公司 | Message processing method and related device during pppoe authentication |
| US10666650B2 (en) | 2015-04-29 | 2020-05-26 | Huawei Technologies Co., Ltd. | Packet processing method in PPPoE authentication process and relevant device |
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| CN109587087B (en) * | 2018-12-10 | 2020-12-29 | 杭州迪普科技股份有限公司 | Message processing method and system |
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| CN111028448B (en) * | 2019-12-25 | 2021-12-21 | 哈尔滨新中新电子股份有限公司 | Data transmission method between POS machine and gateway in all-purpose card system |
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| CN113285922B (en) * | 2021-04-22 | 2022-04-01 | 新华三信息安全技术有限公司 | Table item processing method and device |
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