CN101577915B - Method and system for identifying DSL network access - Google Patents
Method and system for identifying DSL network access Download PDFInfo
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- CN101577915B CN101577915B CN2008101884428A CN200810188442A CN101577915B CN 101577915 B CN101577915 B CN 101577915B CN 2008101884428 A CN2008101884428 A CN 2008101884428A CN 200810188442 A CN200810188442 A CN 200810188442A CN 101577915 B CN101577915 B CN 101577915B
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Abstract
The invention discloses a method and a system for identifying DSL network access. The method comprises the following steps that: a DSL network receives access from a mobile terminal through an access gateway of a WiMAX network; a PPPoE server of the DSL network establishes PPPoE session between the DSL network and the mobile terminal through the access gateway; and a second AAA server of the DSL network identifies the mobile terminal through the PPPoE session. By the method and the system, the WiMAX mobile terminal can access the DSL network, and achieves aims of meeting network intercommunication and service intercommunication.
Description
Technical field
The present invention relates to the communications field, in particular to the authentication method and the system of a kind of digital subscriber line (Digital Subscriber Line abbreviates DSL as) network insertion.
Background technology
In correlation technique, micro-wave access to global intercommunication (Worldwide Interoperabilityfor Microwave Access, abbreviate WiMAX as) can be than Wireless Fidelity (WirelessFidelity, abbreviating Wi-Fi as) more wide territorial scope provides " last kilometer " broadband connection, supports corporate client to enjoy the service of T1 class and the resident has the access ability that is equivalent to cable/DSL with this.Rely on WiMAX 1-6 mile coverage (depending on multiple factor) anywhere, WiMAX can provide outstanding mobility for high-speed data applications.In addition, rely on this coverage and high-throughput, WiMAX can also be provided as the infrastructure of telecommunication, enterprise campus and Wi-Fi Hotspot backhaul is provided.
Fig. 1 is the schematic diagram according to the WiMAX network architecture of correlation technique, as shown in Figure 1, the WiMAX network mainly comprises access service network (Access Service Network abbreviates ASN as) territory and connectivity service network (Connectivity Service Network abbreviates CSN as) territory.
Wherein, the ASN territory mainly comprises base station (Base Station abbreviates BS as) and IAD functional entitys such as (Access Gate Way abbreviate AGW as).The function that ASN finishes in the territory mainly comprises: 2 is connected with the layer of WiMAX terminal, the network of the transmission of authentication and authorization charging message, business network is found and select, relay function, radio open resource management, access business network are provided and are connected between the business network tunnel foundation and manage for setting up to be connected with the layer 3 of WiMAX terminal.
The CSN territory mainly comprises DHCP (Dynamic HostConfiguration Protocol, abbreviate DHCP as) server, authentication, mandate and accounting server (Authentication Authorization and Accounting, abbreviate aaa server as), functional entitys such as home agent.The function that CSN finishes in the territory mainly comprises: user conversation connects, IP address of terminal distributes, Internet inserts, authentication and authorization charging agency or server, based on the strategy of custom system parameter and permission control, access business network and be connected tunnel foundation and management between the business network, the user charges and clearing, connection business network internetwork roaming tunnel and mobile management.
According to correlation technique, current telecommunications and the Internet converged services and high-level network protocol (Telecommunication and Internet converged Service and Protocol forAdvanced Networking, abbreviate TISPAN as) next generation network (NextGeneration Network, check and to be NGN) increased the application scenarios that WiMAX inserts NGN in the R3 framework, subscriber equipment (User Equipment, abbreviate UE as) insert BS by 802.16 technology, BS and then converge to IP boundary point equipment (IP Edge Node).
And, mutual (the Interworking of WiMAX and DSL has also been proposed in the current WiMAX Forum, abbreviate IWK as) problem, UE is by mobile WiMAX network access band remote access server (Broadband Remote Access Server abbreviates BRAS as).
Wherein, DSL is to be the transmission technology combination of transmission medium with copper telephone wire, it comprises HDSL High-Speed Digital Subscriber Line (High-data-rate Digital Subscriber Line, abbreviate HDSL as), Symmetric Digital Subscriber Line (Symmetric Digital Subscriber Line, abbreviate SDSL as), Very-high-speed Digital Subscriber Line road (Very-high-data-rate DigitalSubscriber Line, abbreviate VDSL as), Asymmetrical Digital Subscriber Line (AsymmetricDigital Subscriber Line, abbreviate ADSL as) and RADSL (Rate Adaptive Digital Subscriber Line, abbreviate RADSL as) etc., the main difference of above-mentioned transmission technology is embodied in the different and upstream rate and symmetric different these two aspects of downstream rate of signaling rate and transmission range, these transmission technologys can be referred to as xDSL.
But, no matter be in TISPAN NGN R3 framework or in the WiMAX DSL IWK scene, what provide all is abstract relatively application scenarios, and do not provide WiMAX portable terminal (the Mobile Station of DSL network to inserting, abbreviate MS as) how to carry out the authentication technology scheme, thus cause the WiMAX portable terminal can not visit the DSL network.Therefore, the authentication question at WiMAX portable terminal access DSL network does not propose effective solution as yet in the correlation technique.
Summary of the invention
The present invention aims to provide a kind of authentication method and system of DSL network insertion, can not visit the technical problem of DSL network with WiMAX portable terminal in the solution correlation technique.
A kind of authentication method of DSL network insertion is provided according to an aspect of the present invention.
Authentication method according to DSL network insertion of the present invention, be used for authenticating when the WiMAX network is set up the mobile terminal request access DSL network of the network carrying, this method comprises: the DSL network passes through the visit of the IAD reception of WiMAX network from portable terminal; The PPPoE server of DSL network is by the pppoe session between IAD foundation and the portable terminal; Second aaa server of DSL network authenticates portable terminal by pppoe session.
Preferably, IAD comprises the network interworking function entity, and the network interworking function entity has the PPPoE agent functionality, and the PPPoE server comprises by the session based on PPPoE between IAD foundation and the portable terminal: the PPPoE server is by the pppoe session between foundation of network interworking function entity and the portable terminal.
Preferably, second aaa server carries out comprising based on the authentication of PPPoE to portable terminal: the pppoe session that second aaa server passes through to set up receives the authentication information from portable terminal; Second aaa server authenticates authentication information according to predetermined authentication mode.
Preferably, under the situation of portable terminal by authentication, this method also comprises: the BRAS of DSL network is portable terminal distributing IP address, and by the PPPoE server IP address is sent to portable terminal.
Preferably, the unification of BRAS and PPPoE server is provided with.
Preferably, the unification of the BRAS and second aaa server is provided with.
Preferably, before the visit of DSL network reception from portable terminal, this method also comprises: the WiMAX network receives the access request from portable terminal; First aaa server of WiMAX network carries out access authentication to portable terminal; Under the situation that authentication is passed through, portable terminal is initiated visit to the DSL network.
A kind of Verification System of DSL network insertion also is provided according to a further aspect in the invention.
Verification System according to DSL network insertion of the present invention, be used for when the WiMAX network is set up the mobile terminal request access DSL network of the network carrying, authenticating, this system comprises: IAD, be arranged at the WiMAX network, be used under the situation of mobile terminal accessing DSL network, set up pppoe session as the PPPoE server of pppoe client and DSL network; The PPPoE server is arranged at the DSL network, is used for by the pppoe session between IAD foundation and the portable terminal; Aaa server is arranged at the DSL network, is used for by pppoe session portable terminal being authenticated.
Preferably, this system also comprises: BRAS, be arranged at the DSL network, and be used under the situation of portable terminal, being portable terminal distributing IP address, and the IP address being sent to portable terminal by the PPPoE server by authentication.
By means of technique scheme of the present invention, the aaa server of DSL network carries out authentication based on PPPoE to the WiMAX portable terminal that inserts the DSL network, make the WiMAX portable terminal can visit the DSL network, and then can solve the problem of the authentication technology scheme when lacking the WiMAX portable terminal in the correlation technique and inserting the DSL network, thereby can reach the purpose that satisfies network interworking and business intercommunication.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the WiMAX network architecture of correlation technique;
Fig. 2 is the schematic diagram according to the application scenarios of the embodiment of the invention;
Fig. 3 is the structured flowchart according to the deployment scheme of the WiMAX DSL IWK of the embodiment of the invention;
Fig. 4 is the flow chart according to the authentication method of the DSL network insertion of the embodiment of the invention;
Fig. 5 is the flow chart according to the preferred process scheme of the authentication method of the DSL network insertion of the embodiment of the invention;
Fig. 6 is the block diagram according to the Verification System of the DSL network insertion of the embodiment of the invention;
Fig. 7 is the block diagram according to the preferred structure of the Verification System of the DSL network insertion of the embodiment of the invention.
Embodiment
Functional overview
Main thought of the present invention is: the aaa server of WiMAX network authenticates the MS that inserts it, when the MS request inserts the DSL network, IAD by the WiMAX network is forwarded to the DSL network with request, and has point-to-point protocol (Point to Point Protocol over Ethernet among the AGW by the WiMAX network based on Ethernet, abbreviate PPPoE as) IWF (the Interworking Function of function, abbreviating IWF as) entity sets up between MS and the BRAS and sets up pppoe session, then, the aaa server by the DSL network carries out authenticating and address assignment based on the online account of PPPoE.
For the ease of understanding, before describing the embodiment of the invention, at first the applied network architecture of the present invention is described the embodiment of the invention.Fig. 2 is the schematic diagram according to the application scenarios of the embodiment of the invention, and as shown in Figure 2, this network architecture comprises WiMAX network and DSL network.
Wherein, the WiMAX network mainly comprises ASN territory and CSN territory.
Particularly, the ASN territory mainly is included as functional entitys such as BS and AGW.The function that ASN finishes in the territory mainly comprises: 2 is connected with the layer of WiMAX terminal, the network of the transmission of authentication and authorization charging message, business network is found and select, relay function, radio open resource management, access business network are provided and are connected between the business network tunnel foundation and manage for setting up to be connected with the layer 3 of WiMAX terminal.
The CSN territory mainly comprises functional entitys such as Dynamic Host Configuration Protocol server, aaa server, home agent.The function that CSN finishes in the territory mainly comprises: user conversation connects, IP address of terminal distributes, Internet inserts, authentication and authorization charging agency or server, based on the strategy of custom system parameter and permission control, access business network and be connected tunnel foundation and management between the business network, the user charges and clearing, connection business network internetwork roaming tunnel and mobile management.
Is the network of the transmission technology combination of transmission medium according to DSL network of the present invention for adopting copper telephone wire, the DSL network mainly comprises: digital subscriber line access server (the Digital Subscriber Line Access Multiplexer that is positioned at user side, abbreviate DSLAM as) and modulator-demodulator (Modem) and be positioned at the IP boundary point equipment (can be BRAS) and application service provider (the Application ServiceProvider of network terminal, abbreviate ASP as) and Internet Service Provider's (Network Service Provider abbreviates NSP as).
Fig. 3 is that as shown in Figure 3, the WiMAX portable terminal is linked into BS by 802.16 technology according to the structured flowchart of the deployment scheme of the WiMAX DSL IWK of the embodiment of the invention, and BS is linked into AGW, and AGW converges net by two layers and is linked into BRAS.
An application scenarios of such scheme is: build a whole network separately by the WiMAX technology, walk WiMAX CSN for the WiMAX portable terminal, the user can move by the whole network, walks BRAS for the fixed-line subscriber of data card class, and is just moving among a small circle; The Another application scene is: utilize the WiMAX technology to carry out the part and cover, the WiMAX portable terminal is inserted the DSL network and visits the DSL business, the user can move in the part.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Method embodiment
According to the embodiment of the invention, a kind of authentication method of DSL network insertion is provided, this method is used for authenticating when the WiMAX network is set up the mobile terminal request access DSL network of the network carrying.
Fig. 4 is the flow chart according to the authentication method of the DSL network insertion of the embodiment of the invention.Need to prove, the step of describing in following method can be carried out in the computer system such as a set of computer-executable instructions, and, though figure 4 illustrates logical order, but in some cases, can carry out step shown or that describe with the order that is different from herein.As shown in Figure 4, this method comprises following processing:
Step S202, DSL network pass through the visit of the IAD reception of WiMAX network from portable terminal; Above-mentioned IAD is arranged at the WiMAX network, is used for setting up pppoe session as the PPPoE server of pppoe client and DSL network under the situation that inserts its mobile terminal accessing DSL network;
In specific implementation process, the above-mentioned functions of IAD can realize by having PPPoE agent functionality interworking function entity in the IAD.
Step S204, the PPPoE server of DSL network is by the pppoe session between IAD foundation and the portable terminal; Above-mentioned PPPoE server is arranged at the DSL network, is connected to IAD, is used for by the pppoe session between IAD foundation and the portable terminal;
Step S206, second aaa server of DSL network authenticates portable terminal by pppoe session; Above-mentioned aaa server is arranged at the DSL network, is connected to the PPPoE server, is used for by pppoe session portable terminal being authenticated.
The technical scheme that provides by means of the embodiment of the invention, the aaa server of DSL network carries out authentication based on PPPoE to the WiMAX portable terminal that inserts the DSL network, make the WiMAX portable terminal can visit the DSL network, thereby reach the purpose that satisfies network interworking and business intercommunication.
Fig. 5 is the flow chart (step S502-S514) according to the preferred process scheme of the authentication method of the DSL network insertion of the embodiment of the invention, and as shown in Figure 5, this flow process specifically may further comprise the steps:
Step S502, MS and WiMAX AAA Server (i.e. first aaa server) carry out the initial authentication flow process, and this flow process specifically comprises:
(1) MS starts basic capability negotiating (SS Basic Capabilities abbreviates SBC as), and MS and BS consult PKM protocol version, certification policy;
(2) BS notice AGW has new MS to enter network, receives the context block about this MS ID;
(3) AGW serves as authenticator (Authenticator) and AAA client, and the Extensible Authentication Protocol (Extensible Authorization Protocol abbreviates EAP as) that MS is sent is sealed and dressed up the AAA bag and pass to aaa server;
(4) after authentication finished, MS obtained the authorization and carries out service communication, can obtain MSK a series of keys (KEY) such as (ExtendedMSK) of minimum shift keying (Master Session Key abbreviates MSK as), expansion.
Step S504, MS user's register flow path, this flow process specifically comprises:
(1) MS receives pairwise key management (Pair-wise Key Management, abbreviate PKM as) the SA_TEK_Rs message of second edition (v2), indicate finishing of PKMv2 three-way handshake flow process, carry out the 802.16e registration process by sending register requirement (REG-REQ) message to BS, carry the MS tenability in this message;
(2) BS sends REG-RSP message to MS, carries suitable parameter (according to the response of BS strategy or AGW) in the message, when sends the decision-making that REG-RSP depends on BS;
(3) BS notice AGW authenticator MS registration, during consult the registration parameter with AGW.
Step S506, the initial service flow visioning procedure, this flow process specifically comprises: AGW triggers the foundation of initial service flow according to the CAMEL-Subscription-Information of MS in the WiMAX aaa server after the MS register flow path is finished.
By above-mentioned steps S502-S506, MS finishes the WiMAX network access identifying procedure based on PKMv2, and in this process, the WiMAX aaa server is finished authentication, mandate, network registry, the up/descending initial service flow of WiMAX portable terminal and created; After finishing above-mentioned processing, MS continues by finishing whole identifying procedure with the DSL network interaction.
Step S508, MS and BRAS carry out the link layer negotiation flow process based on PPPoE, and this flow process specifically comprises:
(1) MS initial p PPoE link layer negotiation, pppoe client sends a PADI (PPPoE Active Discovery Initiation) broadcasting packet to the PPPOE server apparatus, beginning PPPoE inserts, IWF function on the AGW need be supported the PPPoE agency, so that set up pppoe session (Session) between MS and the BRAS, IWF transmits this broadcasting packet to BRAS;
(2) the PPPoE server sends PADO (PPPoE ActiveDiscovery Offer) message to client;
(3) pppoe client is initiated PADR (PPPoE ActiveDiscovery Request) request and is given the PPPoE server according to response;
(4) the PPPoE server produces a Session sign (ID), sends to pppoe client by PADS (PPPoE Active Discovery Session-confirmation);
(5) LCP (Link Control Protocol abbreviates LCP as) that carries out PPP between pppoe client and the PPPoE server is consulted, and sets up link layer communications.
Above-mentioned steps S508 is corresponding to the step S202-S204 among Fig. 4.
Step S510, the aaa server of MS and DSL network (i.e. second aaa server) is based on the identifying procedure of PPPoE, this flow process specifically comprises: aaa server is sent to Authentication Client with the authentication mode that consults, and client responds to server after with encrypted authentication information, finishes authentification of user.
Above-mentioned steps S510 is corresponding to the step S206 among Fig. 4.
Step S512, MS and BRAS carry out network layer to be consulted, BRAS is a MS distributing IP address flow process: the user carries out Network Control Protocol (Network Control Protocol abbreviates NCP as) and (IPCP) consults, and gets access to the parameters such as IP address of planning by the PPPoE server.
Step S514, MS and AGW carry out more new technological process of initial service flow: after the user obtains the IP address, according to the WiMAX normal process, user's initial service flow (ISF) grader is upgraded.
Above-mentioned flow process shows the identifying procedure of WiMAX DSL IWK, by the foregoing description, can solve the access authentication problem of WiMAX portable terminal under Tispan R3 and WiMAX DSL IWK scene.
System embodiment
According to the embodiment of the invention, a kind of Verification System of DSL network insertion also is provided, authenticate the authentication method of the DSL network insertion that this system can be used to realize that said method embodiment is provided when being used for that the mobile terminal request of setting up the network carrying at the WiMAX network inserted the DSL network.
Fig. 6 is the block diagram according to the Verification System of the DSL network insertion of the embodiment of the invention; Fig. 7 is the block diagram according to the preferred structure of the Verification System of the DSL network insertion of the embodiment of the invention.
As shown in Figure 6, comprise according to the Verification System of the embodiment of the invention: IAD 10, PPPoE server 20, aaa server 30 (being the second above-mentioned aaa server), wherein:
In specific implementation process, the above-mentioned functions of IAD 10 can realize by having PPPoE agent functionality interworking function entity in the IAD 10.
PPPoE server 20 is arranged at the DSL network, is connected to IAD 10, is used for by the pppoe session between IAD 10 foundation and the portable terminal;
As shown in Figure 7, this Verification System also comprises:
In the DSL network, BRAS 40 can be provided with 20 unifications of PPPoE server, and/or BRAS 40 can be provided with aaa server 30 unifications.
In specific implementation process, the processing shown in Fig. 4 and Fig. 5 can be finished equally according to the Verification System that the embodiment of the invention provides, thereby WiMAX mobile terminal accessing DSL network can be made, concrete processing procedure no longer is repeated in this description herein.
In sum, by means of technical scheme provided by the invention, the aaa server of DSL network carries out authentication based on PPPoE to the WiMAX portable terminal that inserts the DSL network, make the WiMAX portable terminal can visit the DSL network, and then can solve the problem of the authentication technology scheme when lacking the WiMAX portable terminal in the correlation technique and inserting the DSL network, thereby can reach the purpose that satisfies network interworking and business intercommunication.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the authentication method of digital subscriber line DSL network insertion authenticates when being used for that the mobile terminal request of setting up the network carrying at the WiMAX network inserted the DSL network, it is characterized in that described method comprises:
The IAD of described DSL network by described WiMAX network receives the visit from described portable terminal;
Described DSL network based on the point-to-point protocol PPPoE server of Ethernet set up by described IAD and described portable terminal between pppoe session;
Second authentication of described DSL network, mandate and charging aaa server authenticate described portable terminal by described pppoe session;
Wherein, before the visit of described DSL network reception from described portable terminal, described method also comprises: described WiMAX network receives the access request from described portable terminal; First aaa server of described WiMAX network carries out access authentication to described portable terminal; Under the situation that described authentication is passed through, described portable terminal is initiated visit to described DSL network.
2. method according to claim 1, it is characterized in that, described IAD comprises the network interworking function entity, and described network interworking function entity has the PPPoE agent functionality, and described PPPoE server comprises by the session based on PPPoE between described IAD foundation and the described portable terminal:
Described PPPoE server is by the described pppoe session between described network interworking function entity foundation and the described portable terminal.
3. method according to claim 1 is characterized in that, described second aaa server carries out comprising based on the authentication of PPPoE to described portable terminal:
The described pppoe session that described second aaa server passes through to set up receives the authentication information from described portable terminal;
Described second aaa server authenticates described authentication information according to predetermined authentication mode.
4. method according to claim 3 is characterized in that, under the situation of described portable terminal by authentication, described method also comprises:
The Broadband Remote Access Server BRAS of described DSL network is described portable terminal distributing IP address, and by described PPPoE server described IP address is sent to described portable terminal.
5. method according to claim 4 is characterized in that, described BRAS and the unification of described PPPoE server are provided with.
6. method according to claim 4 is characterized in that, described BRAS and the unification of described second aaa server are provided with.
7. the Verification System of digital subscriber line DSL network insertion authenticates when being used for that the mobile terminal request of setting up the network carrying at the WiMAX network inserted the DSL network, it is characterized in that described system comprises:
IAD is arranged at the WiMAX network, is used under the situation of described mobile terminal accessing DSL network, as setting up pppoe session based on the point-to-point protocol pppoe client of Ethernet and the PPPoE server of described DSL network;
Described PPPoE server is arranged at described DSL network, is used for by the pppoe session between described IAD foundation and the described portable terminal;
Second aaa server is arranged at described DSL network, is used for by described pppoe session described portable terminal being authenticated;
Wherein, described WiMAX network was used for before the visit of described DSL network reception from described portable terminal, reception is from the access request of described portable terminal, and described portable terminal being carried out access authentication so that under the situation that described authentication is passed through by first aaa server in it, described portable terminal is initiated described visit to described DSL network.
8. system according to claim 7 is characterized in that, also comprises:
BRAS is arranged at described DSL network, is used for being described portable terminal distributing IP address, and by described PPPoE server described IP address being sent to described portable terminal under the situation of described portable terminal by authentication.
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| CN2008101884428A CN101577915B (en) | 2008-12-17 | 2008-12-17 | Method and system for identifying DSL network access |
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| CN2008101884428A CN101577915B (en) | 2008-12-17 | 2008-12-17 | Method and system for identifying DSL network access |
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| CN101883159A (en) * | 2010-07-09 | 2010-11-10 | 朱孝忠 | Method for using fixed broadband access network as backhaul of wireless access equipment |
| CN105337819B (en) * | 2014-08-15 | 2020-05-22 | 中国电信股份有限公司 | Data processing method of broadband access gateway, broadband access gateway and network system |
| CN107547467B (en) * | 2016-06-23 | 2021-09-24 | 中兴通讯股份有限公司 | Circuit authentication processing method, system and controller |
| EP3598693A1 (en) * | 2017-04-17 | 2020-01-22 | Huawei Technologies Co., Ltd. | Method for accessing fixed network and access gateway network element |
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