CN103209159A - Portal authentication method and system - Google Patents
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- CN103209159A CN103209159A CN2012100097370A CN201210009737A CN103209159A CN 103209159 A CN103209159 A CN 103209159A CN 2012100097370 A CN2012100097370 A CN 2012100097370A CN 201210009737 A CN201210009737 A CN 201210009737A CN 103209159 A CN103209159 A CN 103209159A
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Abstract
The invention discloses a Portal authentication method and system based on network address conversion 444 and relates to the technical field of information technology (IT) device authentication. Wlanuserip attributes are carried in a broadband remote access server (BRAS) redirection message and used for transferring private network Internet protocol (IP) attributes obtained by a user. When the user visits a Portal authentication webpage, the Portal can acquire a private network IP of the user. Due to the fact that a Portable platform builds a correlation between a BRAS device IP and a private network IP address pool when hot spots are built and opened, and the Portable authentication platform can determine an access device of the user through the user private network IP to achieve interaction between the Portal platform and the BRAS device and finish functions of authentication, offline and the like of the Portable user.
Description
Technical field
The present invention relates to information technoloy equipment authentication techniques field, particularly a kind of address transition Network Based 444 (Network Address Translation 444, (Portal) authentication method of door NAT444) and system.
Background technology
Along with publicly-owned IPv4 address is about to exhaustion, the IPV6 technology is also failed ripe commercial, and the NAT444 technology is one of transitional technology of generally acknowledging.
The main thought of NAT444 scheme is that the NAT44 deployed position is improved, dispose operation level NAT44 equipment CGN by operator, NAT with user's side forms the two-stage address transition simultaneously, forms three block address spaces, i.e. the privately owned address of user's side, the privately owned address of operator, public network address.This also is the origin of NAT444 title.The NAT444 scheme can improve the reusability of IPv4 address, the exhausted problem in alleviation address, and be convenient to dispose, only need to get final product in convergence-level or core layer increase CGN equipment, need not to carry out fairly large equipment and replace.Consider that from aspects such as user's perceptibility, technology maturity and deployment difficulties NAT444 is present reasonable scheme.
At present, WLAN (Wireless Local Area Networks, WLAN) the Portal flow chart as shown in Figure 1, mainly comprise: after terminal is obtained public network IP address, initiate corresponding HTTP (HyperText Transfer Protocol, HTML (Hypertext Markup Language)) request (step 102); BRAS (Broadband Remote Access Server, Broadband Remote Access Server) is redirected to Portal address (step 104) with the HTTP request of terminal; Terminal sends to Portal with parameters such as the user name inputed on the Portal page, passwords, initiates authentication request (step 106); Portal obtains the BRAS device address according to the public network IP address of terminal, and parameters such as user name password are passed to BRAS equipment (step 108) by interface; BRAS equipment is initiated authentication request (step 110) to AAA; AAA responds authentication result and gives BRAS equipment (step 112); BRAS equipment is responded authentication result and is given Portal (step 114); Portal shows that the authentication result page is to terminal (step 116).
Under the NAT444 environment, when the user surfed the Net by WLan Portal authentication, wireless network card at first can obtain an IP address, and this address is private network IP address.When the user visited the Portal page, what Portal server got access to was that this private network IP is through the later public network IP address of NAT.This moment, which platform BRAS access WLAN Portal can't know the user from, and the mutual flow process of follow-up Portal and BRAS also just can't be moved, and therefore can't exchange with BRAS equipment and finish authentication.
Summary of the invention
The present inventor finds to have problems in the above-mentioned prior art, and has therefore proposed a kind of new technical scheme at least one problem in the described problem.
An object of the present invention is to provide a kind of for the Portal authentication technology scheme based on NAT444.
According to a first aspect of the invention, provide a kind of Portal authentication method based on NAT444, having comprised: BRAS equipment is redirected to the Portal address with the HTTP request of terminal, and the private network IP address of carried terminal; Terminal is according to the private network IP address visit Portal of Portal address carried terminal; Portal obtains the BRAS device address according to the private network IP address of terminal; Portal initiates authentication request according to the BRAS device address to BRAS equipment; BRAS equipment to Portal return authentication result in order to show terminal.
Alternatively, Portal comprises according to the acquisition BRAS device address, private network IP address of terminal: Portal obtains the BRAS device address corresponding with the private network IP address of terminal according to the corresponding relation of pre-configured private network IP address and BRAS device address; A corresponding unique BRAS device address, a private network IP address in pre-configured private network IP address and the corresponding relation of BRAS device address.
Alternatively, Portal comprises to BRAS equipment initiation authentication request according to the BRAS device address: Portal pushes the unified certification page and gives terminal; Portal receives the username and password that passes through the input of the unified certification page of self terminal; Portal initiates authentication request according to the BRAS device address to BRAS equipment, comprises the private network IP address of username and password and terminal in the authentication request.
Alternatively, BRAS equipment comprises to Portal return authentication result: BRAS equipment is initiated authentication request to AAA; AAA return authentication result gives BRAS equipment; BRAS equipment is issued Portal with authentication result.
Alternatively, the private network IP address by UserIP field carried terminal.
According to a further aspect in the invention, a kind of Portal Verification System based on NAT444 is provided, comprise: BRAS equipment, be used for receiving the HTTP request of self terminal, the private network IP address that the HTTP of terminal request is redirected to Portal address and carried terminal is so that terminal sends the private network IP address access request of carried terminal to Portal; Reception is from the authentication request of Portal, to Portal return authentication result; Portal be used for to receive comes the access request of private network IP address of the carried terminal of self terminal, obtains the BRAS device address corresponding with the private network IP address of terminal according to the corresponding relation of pre-configured private network IP address and BRAS device address; Initiate authentication request according to the BRAS device address to BRAS equipment, receive authentication result from BRAS equipment in order to show terminal.
Alternatively, a corresponding unique BRAS device address, a private network IP address in the corresponding relation of pre-configured private network IP address and BRAS device address.
Alternatively, Portal pushes the unified certification page and gives terminal after receiving the access request of private network IP address of carried terminal of self terminal; Receive the username and password that passes through the input of the unified certification page of self terminal, initiate authentication request according to the BRAS device address to BRAS equipment, comprise username and password in the authentication request.
Alternatively, BRAS equipment is initiated authentication request to AAA, receives the authentication result that AAA returns, and authentication result is issued Portal.
Alternatively, the private network IP address by UserIP field carried terminal.
An advantage of the present invention is, realized authentication based on NAT444Portal, application deployment more quickly by BRAS equipment and Portal server.
With reference to the detailed description of accompanying drawing to exemplary embodiment of the present invention, it is clear that further feature of the present invention and advantage thereof will become by following.
Description of drawings
The accompanying drawing that constitutes the part of specification has been described embodiments of the invention, and is used for explaining principle of the present invention together with the description.
With reference to accompanying drawing, according to following detailed, can be expressly understood the present invention more, wherein:
Fig. 1 illustrates the flow chart of WLAN Portal authentication in the prior art;
Fig. 2 illustrates the flow chart of an embodiment of the WLAN Portal authentication method that the present invention is based on NAT444;
Fig. 3 illustrates the flow chart of another embodiment of the WLAN Portal authentication method that the present invention is based on NAT444;
Fig. 4 is BRAS encapsulates the UserIp field in the HTTP message message example;
Fig. 5 illustrates the example of the message identifying that comprises the UserIP field.
Embodiment
Describe various exemplary embodiment of the present invention in detail now with reference to accompanying drawing.It should be noted that: unless specify in addition, the parts of setting forth in these embodiments and positioned opposite, numeral expression formula and the numerical value of step do not limit the scope of the invention.
Simultaneously, should be understood that for convenience of description that the size of the various piece shown in the accompanying drawing is not to draw according to the proportionate relationship of reality.
Below be illustrative to the description only actually of at least one exemplary embodiment, never as any restriction to the present invention and application or use.
May not be discussed in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but under suitable situation, described technology, method and apparatus should be regarded as authorizing the part of specification.
In shown here and all examples of discussing, it is exemplary that any occurrence should be construed as merely, rather than as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and the letter accompanying drawing below, therefore, in case be defined in a certain Xiang Zaiyi accompanying drawing, then in accompanying drawing subsequently, do not need it is further discussed.
Fig. 2 illustrates the flow chart of an embodiment of the WLAN Portal authentication method that the present invention is based on NAT444.
As shown in Figure 2, step 202, BRAS equipment is redirected to the Portal address with the HTTP request of terminal, and the private network IP address of carried terminal.Under the NAT444 scene, the user is to the WLAN focus, and the IP address that obtains is private network IP address, when the user surfs the Net with this private network IP, access request at first arrives BRAS equipment, and this moment, BRAS equipment can obtain user's private network IP address according to user http request message.
In above-described embodiment, propose WLan Portal authentication method under a kind of NAT444 scene, can solve under the NAT444 scene access authentication of WLan Portal User, and application deployment more quickly.
In one embodiment, the mapping relations in Portal server configuration BRAS equipment and private network IP address, for example, the correspondence table of (BRAS device address: address pool IP From, address pool End IP).WLan Portal just can from which platform BRAS equipment insert by direct consumer positioning according to visiting user private network IP, and the username and password that the user is imported at the Portal webpage sends to corresponding BRAS equipment by the interface with BRAS.
Fig. 3 illustrates the flow chart of another embodiment of the WLAN Portal authentication method that the present invention is based on NAT444.Be provided at solution that attribute carries user private network IP of authentication whole process definition among this embodiment, this attribute is tentative to be wlanuserip.
As shown in Figure 3, after step 302, terminal are obtained the IP address that will visit network address, initiate the HTTP request, comprise the private network IP address of terminal in the HTTP request.
Step 304, the HTTP request arrives BRAS equipment, and BRAS equipment is redirected to the Portal page with the HTTP request, carries the wlanuserip parameter value behind Redirect Address, the private network IP address of this wlanuserip parameter value carried terminal.
Step 306, terminal access Portal carries the wlanuserip parameter value.
Step 308, Portal obtains wlanuserip, pushes the unified certification page and gives terminal.
Step 310, parameters such as terminal is inputed the user at the Portal page user name, password send to Portal, initiate authentication request.
Step 312, Portal utilizes wlanuserip to determine corresponding BRAS equipment, initiates authentication request to BRAS equipment, comprises the private network IP address of terminal in the authentication request.
Step 314, BRAS equipment is initiated authentication request to AAA (Authentication, Authorization, Accounting, checking, authorization and accounting) server.
Step 316, AAA responds authentication result and gives BRAS equipment
Step 318, BRAS equipment is responded authentication result and is given Portal.
Step 320, Portal shows the authentication result page to the user, authentication success then provides roll off the production line button or the connection of carrying the wlanuserip parameter value.
In above-described embodiment, provide the implementation method of the WLAN Portal under a kind of NAT444 scene, this method is used for transmitting the private network IP attribute that the user obtains by carry the wlanuserip attribute in the BRAS redirection message; When the user visits the Portal certification page, Portal can obtain this user's private network IP, because the Portal platform has been set up the incidence relation of BRAS Device IP and private network IP address pool in focus construction and opening, the Portal authentication platform can be determined this user's access device by user private network IP, thereby realize the mutual of Portal platform and BRAS equipment, finish Portal User authentication, function such as roll off the production line.
Under the NAT444 environment, use this programme solution PC or mobile phone terminal by the problem of WLanPortal authentication, BRAS and Portal server are made amendment: BRAS carries the private network IP address of terminal to Portal server by message field (MFLD), after Portal server obtains the private network IP address of terminal, when sending message identifying, the userIp field of this message identifying is filled to the private network IP address of terminal.Specific as follows:
1, BRAS is by the field name of order line definition carried terminal private network IP address, and acquiescence is the wlanuserip field.Send to the message of Portal, utilize the wlanuserip field in the HTTP message body of message, the IP address information that comprises in this HTTP character string is configured as the private network IP address that the user distributes;
2, the Portal server wlanuserip character string of carrying according to HTTP is obtained user's private network IP address information, user's private network IP address rather than the source IP address in the IP message (this moment, this source IP address replaced with public network IP address) is encapsulated in sends to BRAS in the authentication request packet.
When the device redirection user asks, return to user browser by the following HTTP redirection message of BRAS structure:
BRAS encapsulates the UserIp field in the HTTP message:
Fig. 4 is BRAS encapsulates the wlanuserip field in the HTTP message message example, and the private network IP address by wlanuserip field carried terminal is shown in the wire frame among Fig. 4.
When the user submits authentication request to, organize message identifying to send to BRAS equipment by Portal server.Because the agreement of Portal and BRAS equipment is proprietary protocol, and is different according to producer's difference.Portal server is encapsulated in the UserIp field of message identifying according to the field of the wlanuserip that BRAS equipment sends.Fig. 5 illustrates the example of the message identifying that comprises the UserIP field.In Fig. 5, this authentication comprise version (Version), type (Type), PAP/chap, reservation (Rsvd), sequence number (SerialNo), ReqID (request mark), UserIP (User IP), UserPort (user port), error code (ErrCode), attribute number (AttrNum), Authenticator (authentication), Authenticator (cont), attribute (Attr),,, etc. field.Wherein, what the UserIP field was inserted is the user private network IP address of carrying by wlanuserip, rather than passes through the public network IP address of the source IP address acquisition of message.
This moment, Portal server was resolved user private network IP address by message correctly, finished authentication and the flow process that rolls off the production line.
Above flow process all is suitable for PC or mobile phone terminal, and flow process is basic identical.
Under the NAT444 scene, the user how by WLAN Portal authentication insert the ChinaNet of China Telecom network (https: //WLan.ct10000.com), still do not have the mature technique scheme in the prior art.Be example with " ChinaNet " focus below, introduce the present invention program's a application examples.
When WLAN " ChinaNet " focus was enabled private network IP address, at for example private network IP address field of good each districts and cities of planning across the entire province, did not repeat the private network IP address of using in the time of each focus construction.When the construction of a WLAN focus is finished, the up BRAS device address of this focus is determined, the private network IP address field that is used for the WLAN business under this BRAS equipment is also fixed, and before focus was enabled, this corresponding relation configured at Portal server.For example, a focus construction is finished, and the up BRAS equipment of this focus is that to fix for example is 100.100.100.100, and the private net address pond is also fixed, for example be 10.10.10.0～10.10.10.255, this corresponding relation must be registered at Portal server before focus is enabled.
Under the NAT444 scene, the user is to " ChinaNet " focus, and the IP address that obtains is private network IP address, and for example the user has obtained an address 10.10.10.1 in the address pool to focus.When the user surfed the Net with this private network IP, access request at first arrived BRAS.Any webpage of user computer terminal access, for example
Www.sina.comIn the time of this online request process BRAS equipment, BRAS just can obtain the user private network address according to user http request message; BRAS equipment determines this private network IP winner also not by authentication, this moment, BRAS equipment changed the request of the browser access Sina of user terminal into https: //the Portal address of WLan.ct10000.com, this is redirected and is reflected on the user terminal, and the user the browser input is
Www.sina.com, after this request was caught by BRAS, BRAS used redirection function, and the visit network address of terminal is revised as from Sina
Https: //WLan.ct10000.comAs the Portal website, capture one and carry the http access request that the wlanuserip attribute is 10.10.10.1, Portal one looks into log-on message, just know that this user inserts under this BRAS equipment of 100.100.100.100, just can give BRAS equipment number of the account name and password that the user inputs at the Portal page.Finish authentication by BRAS equipment then, and authentication result is returned terminal by Portal.
The invention provides WLan Portal implementation method and system under a kind of NAT444 scene, it realizes that by BRAS and Portal Server this scheme is better head it off in actual applications, and is less to the transformation of existing network WLAN Portal system.
So far, described in detail according to Portal authentication method and the system based on NAT444 of the present invention.For fear of covering design of the present invention, details more known in the field are not described.Those skilled in the art can understand fully and how implement technical scheme disclosed herein according to top description.
May realize method and system of the present invention in many ways.For example, can realize method and system of the present invention by any combination of software, hardware, firmware or software, hardware, firmware.The said sequence that is used for the step of described method only is in order to describe, and the step of method of the present invention is not limited to above specifically described order, unless otherwise specify.In addition, in certain embodiments, can be the program that is recorded in the recording medium with the invention process also, these programs comprise for the machine readable instructions that realizes the method according to this invention.Thereby the present invention also covers the recording medium that storage is used for the program of execution the method according to this invention.
Though by example specific embodiments more of the present invention are had been described in detail, it should be appreciated by those skilled in the art that above example only is in order to describe, rather than in order to limit the scope of the invention.It should be appreciated by those skilled in the art, can under situation about not departing from the scope of the present invention with spirit, above embodiment be made amendment.Scope of the present invention is limited by claims.
Claims (10)
1. the door based on NAT444 (Portal) authentication method is characterized in that, comprising:
Broadband Remote Access Server (BRAS) equipment is redirected to the Portal address with the HTTP request of terminal, and carries the private network IP address of described terminal;
Described terminal is carried the private network IP address visit Portal of described terminal according to described Portal address;
Described Portal obtains the BRAS device address according to the private network IP address of described terminal;
Described Portal initiates authentication request according to described BRAS device address to BRAS equipment;
Described BRAS equipment to described Portal return authentication result in order to show described terminal.
2. method according to claim 1 is characterized in that, described Portal comprises according to the acquisition BRAS device address, private network IP address of described terminal:
Described Portal obtains the BRAS device address corresponding with the private network IP address of described terminal according to the corresponding relation of pre-configured private network IP address and BRAS device address; A corresponding unique BRAS device address, a private network IP address in the corresponding relation of described pre-configured private network IP address and BRAS device address.
3. method according to claim 1 is characterized in that, described Portal initiates authentication request according to described BRAS device address to BRAS equipment and comprises:
Described Portal pushes the unified certification page and gives described terminal;
Described Portal receives the username and password that passes through described unified certification page input from described terminal;
Described Portal initiates authentication request according to described BRAS device address to BRAS equipment, comprises the private network IP address of described username and password and described terminal in the described authentication request.
4. method according to claim 1 is characterized in that, described BRAS equipment comprises to described Portal return authentication result:
Described BRAS equipment is initiated authentication request to AAA;
Described AAA return authentication result gives described BRAS equipment;
Described BRAS equipment is issued described Portal with described authentication result.
5. according to any described method in the claim 1 to 4, it is characterized in that, carry the private network IP address of described terminal by the UserIP field.
6. the door based on NAT444 (Portal) Verification System is characterized in that, comprising:
Broadband Remote Access Server (BRAS) equipment, be used for receiving the HTTP request of self terminal, the HTTP of described terminal request is redirected to the Portal address and carries the private network IP address of described terminal, so that described terminal sends the private network IP address access request of carrying described terminal to described Portal; Reception is from the authentication request of Portal, to described Portal return authentication result;
Described Portal, be used for receiving the access request from the private network IP address of carrying described terminal of described terminal, according to the corresponding relation acquisition BRAS device address corresponding with the private network IP address of described terminal of pre-configured private network IP address and BRAS device address; Initiate authentication request according to described BRAS device address to BRAS equipment, receive authentication result from described BRAS equipment in order to show described terminal.
7. system according to claim 6 is characterized in that, a corresponding unique BRAS device address, a private network IP address in the corresponding relation of described pre-configured private network IP address and BRAS device address.
8. system according to claim 6 is characterized in that, after the access request of described Portal reception from the private network IP address of carrying described terminal of described terminal, pushes the unified certification page and gives described terminal; Reception is from the username and password that passes through described unified certification page input of described terminal, initiate authentication request according to described BRAS device address to BRAS equipment, comprise the private network IP address of described username and password and described terminal in the described authentication request.
9. system according to claim 6 is characterized in that, described BRAS equipment is initiated authentication request to AAA, receives the authentication result that described AAA returns, and described authentication result is issued described Portal.
10. according to any described system in the claim 6 to 9, it is characterized in that, carry the private network IP address of described terminal by the UserIP field.
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| CN201210009737.0A CN103209159B (en) | 2012-01-13 | 2012-01-13 | Gate verification method and system |
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| WO2022053055A1 (en) * | 2020-09-14 | 2022-03-17 | 中兴通讯股份有限公司 | Method for accessing broadband access server, server, and storage medium |
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