CN104902007A - Shared link accessing method of PPPOE service providers - Google Patents
Shared link accessing method of PPPOE service providers Download PDFInfo
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- CN104902007A CN104902007A CN201510191215.0A CN201510191215A CN104902007A CN 104902007 A CN104902007 A CN 104902007A CN 201510191215 A CN201510191215 A CN 201510191215A CN 104902007 A CN104902007 A CN 104902007A
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- 230000006855 networking Effects 0.000 abstract 3
- 230000000903 blocking effect Effects 0.000 description 12
- 238000011217 control strategy Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 4
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
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Abstract
The invention discloses a shared link accessing method of PPPOE service providers. A client accesses a user area core switch via a link interface, the PPPOE service providers access the user area core switch via service-provider core switches respectively, the different service providers are provided with different service provider codes, and the service-provider core switches or the user area core switch are/is configured, so that corresponding data message is allowed and other data messages are blocked. Thus, multiple network service providers share one access equipment and line, the cost is greatly reduced, the service providers do not interfere one another, and the safety level is high; the whole campus network or cell is managed in a unified manner, the safety is monitored, strategies are convenient to implement, maintenance is convenient and the maintenance cost is low; and the networking authentication manner of users is unified, networking configuration is simple, satisfied service providers can be selected according to the service, price and application, and more excellent networking experience can be enjoyed.
Description
Technical field
The invention belongs to field of computer technology, be specifically related to PPPOE agreement multi-operator access shared link method.
Technical background
PPPOE (the point-to-point connection protocol on Ethernet) certification is applied in the ADSL access of telecom operators at present on a large scale, the extension of telecom operators' traditional PSTN narrowband dialing access technology to Ethernet access technique, namely the Ethernet that dedicated bandwidth is larger replaces traditional PSTN, consistent with original narrowband network access authentication of user system, and have its inherent advantage.One, configuration is simple, adopts PPPOE can not change the online custom of user, reduces the training of user; Two, charging way is flexible, and PPPoE is easy to be checked through user offline, carries out based on duration or stream quantitative statistics by the foundation of a PPP session and release to user; Three, fail safe is high, can realize being connected end to end of access user and access device, effectively can carry out user isolation on the network of broadcast-type, thus takes precautions against virus, as ARP virus attack; Four, administer and maintain conveniently, PPPOE network access is owing to adopting two layers of certification, and all link device are all operated in the second layer, effectively can control the broadcast storm caused by ARP agreement; And adopt dynamic IP address allocation, there is not user and change IP address voluntarily and produce the plurality of advantages such as the problem of IP address conflict, the place of the needs network operation such as school, community can well be met.
Traditional campus network or community; run separately primarily of an operator; or You Duojia operator exists; each operator adopts the mode of separate lines, independent O&M; this just causes school of same institute or community exists Duo Tiao operator line attachment; the loaded down with trivial details disunity of access way, operation management is fought separately disunity, and network exists repeated construction, the wasting of resources.In order to allow user have experience of better surfing the Net, enjoying better service, introducing many carriers vie, realize many net unifications and also just become inevitable.But, adopt the select permeability that there will be user link after being merged by user's access link, when only there is a set of access network in network, and when there is multiple access carrier, first a PADI broadcasting packet is sent in network after subscriber dialing, multiple operator all can receive this message, and return a PADO message separately to user, because the different access carrier server reaction time differs, user successively can receive these PADO messages, according to the authentication mechanism of PPPOE, the operator of the operator PADO message received in first is carried out certification by user, and this operator not necessarily user expect connect operator, cause user login validation failure, make user cannot dock certification with the operator oneself expected normally.How solving the problem and make user only need be concerned about enjoyed service and price, without the need to paying close attention to structure and the setting of network complexity, just having become the hot topic of research.
Summary of the invention
Technical problem to be solved by this invention is to provide the method for a kind of PPPOE agreement multi-operator access shared link to solve in existing campus network or community the user link select permeability produced when the multiple access passages that there is multiple independent operator merge into an access passage.
The present invention adopts following technical scheme to solve the problems of the technologies described above:
The method of PPPOE agreement multi-operator access shared link, user side connects user area core switch by LI(link interface), multiple operator PPPOE server connects user area core switch respectively by respective operator's end core switch, comprises the following steps:
(1) respectively different operator code is arranged to each operator;
(2) each operator end core switch is configured respectively, collocation strategy is: the inflow direction on the interface be connected with user access core switch, this operator end core switch is let pass and is comprised PADI message and other data message of this operator code, blocks the PADI message comprising other operator code;
(3) user fills in the operator code and other dialing information that need to connect in " service name " of dialup client, forms the PADI message including operator code;
(4) PADI message is initiated in dialup client dialing broadcast;
(5) each operator end core switch to conduct interviews control to the PADI message flowing into operator end core switch from user kernel mapping of field machine respectively: this PADI message is unpacked analysis by each operator end core switch separately, extract operator code, judge whether one's own PADI message, if not, then abandon this PADI message, otherwise this PADI message of letting pass;
(6) the PPPOE server of corresponding operator receives the PADI request message of user and returns PADO message to dialup client;
(7) dialup client completes PPPOE discovery phase with the PPPOE server of corresponding operator and connects, and completes login authentication with the PPPOE server of corresponding operator.
The method of PPPOE agreement multi-operator access shared link, user side connects user area core switch by LI(link interface), multiple operator PPPOE server connects user area core switch respectively by respective operator's end core switch, comprises the following steps:
(1) respectively different operator code is arranged to each operator;
(2) configure user region core switch, collocation strategy is: at the inflow direction of the Operator interface be connected with operator end core switch, each Operator interface is let pass and is comprised PADO message and other data messages of this operator code, blocks the PADO message comprising other operator code;
(3) user fills in the operator code and other dialing information that need to connect in " service name " of dialup client, forms the PADI message including operator code;
(4) PADI message is initiated in dialup client dialing broadcast;
(5) each operator end PPPOE server returns PADO message separately;
(6) user area core switch to conduct interviews control to above-mentioned PADO message: the PADO message that each operator end PPPOE server returns is unpacked and analyzed and extract operator code by user area core switch respectively, judge that whether each PADO message is corresponding with the Operator interface of its inflow, if it is to let pass this PADO message, otherwise abandon this PADO message;
(6) dialup client receives PADO message;
(8) dialup client and corresponding operator complete PPPOE discovery phase and connect, and complete login authentication with the PPPOE server of corresponding operator.
Marked improvement of the present invention is:
Multiple Virtual network operator shares a set of access device and circuit, saves great amount of investment cost, and operator's back-end data is at each operator machine room, non-interference, fail safe is high; For campus network or community, the management of whole network is unified, security monitoring and strategy are convenient to implement, easy to maintenance, maintenance cost is low; For user, network access authentication mode is unified, and online arranges simple, and the more important thing is and can select oneself satisfied operator according to demands such as service, price, application, the online enjoying more high-quality is experienced.
Accompanying drawing explanation
Fig. 1 is the structural representation of PPPOE agreement multi-operator of the present invention access shared link;
Fig. 2 is the structural representation of the method adopting PPPOE agreement multi-operator of the present invention access shared link, wherein to be conducted interviews control to PADI message respectively by each operator end core switch;
Fig. 3 is the structural representation of the method adopting PPPOE agreement multi-operator of the present invention access shared link, wherein to be conducted interviews control to PADO message by user area core switch.
Specific implementation method
Below in conjunction with accompanying drawing, the present invention is described in further detail, but does not form limiting the scope of the invention.
The method of PPPOE agreement multi-operator access shared link, as shown in Figure 1, user side is by LI(link interface) access user region core switch, multiple operator PPPOE server is respectively by respective operator's end core switch access user region core switch, as shown in Figures 2 and 3, the method comprises the following steps:
(1) Duo Jia operator access user region core switch, and to user former access network VLAN open service.Meanwhile, respective operator code is supplied to user by Duo Jia operator, and operator code requires uniform length, and such as length is the operator code of 2: the operator code of telecommunications company is dx, ASC II yard is 6478; The operator code of commmunication company is yd, ASC II yard is 7964; The operator code of CHINAUNICOM is lt, ASC II yard is 6c74.
(2) user fills in corresponding information such as account number, password by dialup client, in " service name " attribute of PPPOE dialup client, then arrange the operator code needing access.
(3), after subscriber dialing, a PADI message can first be sent.The PADI message of different operators is as follows:
Telecommunications: ff ff ff ff ff ff 74 e5 0b 68 91 d6 88 63 11 09 00 00 00 16 01 01 00 02 64 78 01 03 00 0a 08 00 00 00 00 00 00 00 08 00
Mobile: ff ff ff ff ff ff 74 e5 0b 68 91 d6 88 63 11 09 00 00 00 16 01 01 00 02 79 64 01 03 00 0a 08 00 00 00 00 00 00 00 08 00
UNICOM: ff ff ff ff ff ff 74 e5 0b 68 91 d6 88 63 11 09 00 00 00 16 01 01 00 02 6c 74 01 03 00 0a 08 00 00 00 00 00 00 00 08 00
Each byte of above message is defined as follows:
1-6 byte: destination-mac address, is worth for 0x ffffffffffff;
7-12 byte: source MAC, the source address of different user is different;
13-14 byte: protocol type, it is 0x8863 that PPPOE connects discovery phase;
15th byte: Ver territory and Type territory, PPPOE version number and PPPOE type, be worth for 0x11;
16th byte: Code territory, if PADI message, is worth for 0x09, if PADO message, is worth for 0x07;
17-18 byte: Session_ID territory;
19-20 byte: the Payload length of field of definition PPPOE, does not comprise the length of Ethernet head and PPPOE head;
From the 21st byte, all bytes are the data field of message afterwards;
21-22 byte: field type, is worth for 0x0101 represents service name;
23-24 byte: field length, value is 0x0002 herein, and length is 2 bytes;
25-26 byte: service name, i.e. operator code;
27-28 byte: field type, is worth for 0x0103 represents host-Uniq;
29-30 byte: field length, this value actual conditions length is not fixed, and value is 0x000a herein, and representing length is 10 bytes;
All bytes after 30th: host-Uniq real data.
The operator receiving the PADI message of user connects and can return a corresponding PADO message, form is identical with user PADI, data just in respective byte change to some extent: the destination address of 1-6 byte becomes the MAC Address of user, and the source address in 7-12 byte is the MAC Address of Provider Equipment.
This shows, this two classes message has two characteristic byte section:
First characteristic byte section is: 13-14 byte, protocol type, and it is 0x8863 that PPPOE connects discovery phase;
Second characteristic byte section is: 25-26 byte, service name, i.e. operator code;
Can determine to distribute corresponding operator PPPOE connection establishment message according to these two characteristic byte section.
(4) access control method one is adopted: end is configured operator's end core switch in operator, as shown in Figure 2, interface G1, the interface G2 of corresponding operator A core switch, operator B core switch, operator C core switch, the Way in of interface G3 conduct interviews control respectively, to let pass one's own PADI message, abandon not one's own PADI message; Such as: the core switch of telecommunications company is let pass and comprised the PADI message that operator code is 6478, abandons the PADI message that operator code is other value.
Or adopt access control method two: core switch is configured in user area, as shown in Figure 3, user area core switch respectively interface G4, the interface G5 of corresponding operator A core switch, operator B core switch, operator C core switch, the Way in of interface G6 to conduct interviews control, operator's end is without the need to being configured again.The interface corresponding with certain operator is let pass the PADO message that comprises this operator code and block the PADO message comprising other operator code.Such as: for the interface of telecommunications company's access user region core switch, let pass and comprise the PADO message that operator code is 6478, block the PADO message that operator code is other value.
Above two kinds of access control methods, be and the connect message of discovery phase of PPPOE is controlled, namely 0X8863 protocol massages is controlled, so need not PADO or PADI be distinguished, only need control for the service name field of 0X8863 protocol massages.Adopt access control method for the moment, control strategy is applied in the inflow direction of operator's end core switch ports themselves.When adopting access control method two, control strategy is applied in the inflow direction of user area core switch port.
Due in the different network equipments, carried other data before data message, corresponding field location can change to some extent, if the operator A in Fig. 2 and Fig. 3 is telecommunications, operator B is for mobile, and operator C is UNICOM, the collocation method take core switch as Huawei s9300 series of switch being example:
As shown in Figure 2, adopt access control method one to be configured, each operator end core switch is configured to respectively:
The control strategy of G1 connection inlet direction configuration is:
1. blocking protocol type is 0x8863, and service name is the message of yd.
rule deny 0x00008863 0x0000ffff 14 0x00007964 0x0000ffff 26
2. blocking protocol type is 0x8863, and service name is the message of lt.
rule deny 0x00008863 0x0000ffff 14 0x00006c74 0x0000ffff 26
The control strategy of G2 connection inlet direction configuration is:
1. blocking protocol type is 0x8863, and service name is the message of dx.
rule deny 0x00008863 0x0000ffff 14 0x00006478 0x0000ffff 26
2. blocking protocol type is 0x8863, and service name is the message of lt.
rule deny 0x00008863 0x0000ffff 14 0x00006c74 0x0000ffff 26
The control strategy of G3 connection inlet direction configuration is:
1. blocking protocol type is 0x8863, and service name is the message of dx.
rule deny 0x00008863 0x0000ffff 14 0x00006478 0x0000ffff 26
2. blocking protocol type is 0x8863, and service name is the message of yd.
rule deny 0x00008863 0x0000ffff 14 0x00007964 0x0000ffff 26
As shown in Figure 3, adopt access control method two to be configured, user area core switch is configured to:
The control strategy of G4 connection inlet direction configuration is:
1. blocking protocol type is 0x8863, and service name is the message of yd.
rule deny 0x00008863 0x0000ffff 14 0x00007964 0x0000ffff 26
2. blocking protocol type is 0x8863, and service name is the message of lt.
rule deny 0x00008863 0x0000ffff 14 0x00006c74 0x0000ffff 26
The control strategy of G5 Way in configuration is:
1. blocking protocol type is 0x8863, and service name is the message of dx.
rule deny 0x00008863 0x0000ffff 14 0x00006478 0x0000ffff 26
2. blocking protocol type is 0x8863, and service name is the message of lt.
rule deny 0x00008863 0x0000ffff 14 0x00006c74 0x0000ffff 26
The control strategy of G6 Way in configuration is:
1. blocking protocol type is 0x8863, and service name is the message of dx.
rule deny 0x00008863 0x0000ffff 14 0x00006478 0x0000ffff 26
2. blocking protocol type is 0x8863, and service name is the message of yd.
rule deny 0x00008863 0x0000ffff 14 0x00007964 0x0000ffff 26
(5) after completing configuration by step (4), subscriber dialing, can not receive the PADO message that returns of service provider that non-user is expected, can normal dialing success, dialing success rate 100%.
Claims (2)
- The method of 1.PPPOE agreement multi-operator access shared link, user side connects user area core switch by LI(link interface), multiple operator PPPOE server connects user area core switch respectively by respective operator's end core switch, it is characterized in that, comprise the following steps:(1) respectively different operator code is arranged to each operator;(2) each operator end core switch is configured respectively, collocation strategy is: the inflow direction on the interface be connected with user access core switch, this operator end core switch is let pass and is comprised PADI message and other data message of this operator code, blocks the PADI message comprising other operator code;(3) user fills in the operator code and other dialing information that need to connect in " service name " of dialup client, forms the PADI message including operator code;(4) PADI message is initiated in dialup client dialing broadcast;(5) each operator end core switch to conduct interviews control to the PADI message flowing into operator end core switch from user kernel mapping of field machine respectively: this PADI message is unpacked analysis by each operator end core switch separately, extract operator code, judge whether one's own PADI message, if not, then abandon this PADI message, otherwise this PADI message of letting pass;(6) the PPPOE server of corresponding operator receives the PADI request message of user and returns PADO message to dialup client;(7) dialup client completes PPPOE discovery phase with the PPPOE server of corresponding operator and connects, and completes login authentication with the PPPOE server of corresponding operator.
- The method of 2.PPPOE agreement multi-operator access shared link, user side connects user area core switch by LI(link interface), multiple operator PPPOE server connects user area core switch respectively by respective operator's end core switch, it is characterized in that, comprise the following steps:(1) respectively different operator code is arranged to each operator;(2) configure user region core switch, collocation strategy is: at the inflow direction of the Operator interface be connected with operator end core switch, each Operator interface is let pass and is comprised PADO message and other data messages of this operator code, blocks the PADO message comprising other operator code;(3) user fills in the operator code and other dialing information that need to connect in " service name " of dialup client, forms the PADI message including operator code;(4) PADI message is initiated in dialup client dialing broadcast;(5) each operator end PPPOE server returns PADO message separately;(6) user area core switch to conduct interviews control to above-mentioned PADO message: the PADO message that each operator end PPPOE server returns is unpacked and analyzed and extract operator code by user area core switch respectively, judge that whether each PADO message is corresponding with the Operator interface of its inflow, if it is to let pass this PADO message, otherwise abandon this PADO message;(6) dialup client receives PADO message;(8) dialup client and corresponding operator complete PPPOE discovery phase and connect, and complete login authentication with the PPPOE server of corresponding operator.
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| CN107172494A (en) * | 2017-06-29 | 2017-09-15 | 深圳市茁壮网络股份有限公司 | A kind of method for authenticating and right discriminating system |
| CN108011932A (en) * | 2017-11-22 | 2018-05-08 | 新华三技术有限公司 | Access processing method and device |
| CN108134693A (en) * | 2017-12-18 | 2018-06-08 | 深圳市共进电子股份有限公司 | Networking parameters configuration method, device, router and the storage medium of router |
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| CN108011932A (en) * | 2017-11-22 | 2018-05-08 | 新华三技术有限公司 | Access processing method and device |
| CN108134693A (en) * | 2017-12-18 | 2018-06-08 | 深圳市共进电子股份有限公司 | Networking parameters configuration method, device, router and the storage medium of router |
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| CN104902007B (en) | 2018-05-22 |
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