CN1450766A - User management method based on dynamic mainframe configuration procotol - Google Patents

User management method based on dynamic mainframe configuration procotol Download PDF

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CN1450766A
CN1450766A CN02111373A CN02111373A CN1450766A CN 1450766 A CN1450766 A CN 1450766A CN 02111373 A CN02111373 A CN 02111373A CN 02111373 A CN02111373 A CN 02111373A CN 1450766 A CN1450766 A CN 1450766A
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user
client
dhcp
authentication
according
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CN100417127C (en
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赖胜晖
方军
唐珂
戴进
白英杰
张钢钢
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深圳市中兴通讯股份有限公司
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Abstract

The present invention includes the steps as the follows: 1) DHCP request is issued by the client end, 2) the request from the client end is responded by DHCP service and to set up the client control information to limit the access ability of the client, 3) the client authentication has been carried on and to send the authentication resu9lt back to DHCP server, 4) the client control information isrefreshed by DHCP server as per the authentication result and to send the new network disposal to the client end and 5) the client is on network as normal and DHCP server processes other DHCP information of the client.

Description

一种基于动态主机配置协议的用户管理方法 User management method based on Dynamic Host Configuration Protocol

技术领域 FIELD

本发明涉及宽带接入网,具体的说,涉及一种接入服务器对DHCP(DynamicHost Configuration Protocol动态主机配置协议)接入用户认证和管理的方法。 The present invention relates to a broadband access network, and specifically, to a method for access server DHCP (DynamicHost Configuration Protocol Dynamic Host Configuration Protocol) user authentication and access management.

DHCP可以很好地使用在企业内部的局域网中,极大地减轻TCP/IP网络的规划、管理和维护的负担,自动进行IP地址的分配与回收,基本上不需要人为干预。 DHCP can be well used within the enterprise LAN, greatly reducing programming TCP / IP network, the burden of managing and maintenance, automatic IP address allocation and recovery, basically no human intervention. 但这种传统的DHCP组网方式仅仅是一种企业级的IP网络,是基于企业内部信任并不进行运营的网络,从运营商的角度来看是零管理的网络,尤其是DHCP Server主要用于管理网络配置,对用户的管理以集合的方式进行,除IP地址外,多个用户使用相同的网络配置,一个小小的改动就会影响整个网络,且不能动态地修改,需要管理员人工干预,所以适合在相对稳定的企业内部网中使用。 But this is only the traditional DHCP networking is an enterprise-class IP network is based on trust within the enterprise does not carry out operations network, is zero-administration network from the operator's point of view, especially with the main DHCP Server in the network configuration management, user management is performed so as to set, in addition to IP addresses, a plurality of users use the same network configuration, a small change will affect the whole network, and can not be dynamically modified, requires the administrator artificial intervention, so suitable for use in relatively stable intranet. 但接入网要求能为单个用户提供定制服务,每个用户的配置是独立的,并且可以动态更新,以满足管理的需要。 But access network requests to provide customized services for individual users, each user's profile is independent and can be dynamically updated to meet the needs of management. 所以当把DHCP作为宽带接入的一个业务实现方式的时候,现有技术不能很好地对用户进行必要的管理。 So when the DHCP as a service implementation of broadband access, the prior art can not properly manage the user necessary.

本发明的核心思想是:通过引入用户的的控制信息,增强DHCP Server对用户的管理功能,控制信息可以影响DHCP的协商过程和用户的上网行为。 The core idea of ​​the invention is: can affect the behavior of Internet users and the DHCP negotiation process through the introduction of user control information, and enhance the DHCP Server management functions for the user, control information. 而用户控制信息的获得与变更则与用户的认证密切相关,从而很好地满足了接入网中对用户认证和管理的要求。 The user controls to obtain information and change is closely related to user authentication, which satisfy the requirements of the access network user authentication and management.

本发明的技术方案是这样实现的。 Aspect of the present invention is implemented. 一种基于动态主机配置协议的用户管理方法,包括下列步骤:①客户端发出DHCP请求;②DHCP服务器响应客户端请求,建立用户控制信息,限制用户访问能力;③用户进行认证,并将认证结果返回给DHCP服务器;④DHCP服务器根据认证结果更新用户控制信息,并将新的网络配置发给客户端;⑤用户正常上网,DHCP服务器处理用户的其它DHCP信息。 User management method based on the dynamic host configuration protocol, comprising the following: ① From client sends a DHCP request; ②DHCP server responds to the client request, establishing user control information, the ability to restrict user access; ③ authenticates the user, and returns an authentication result to the DHCP server; ④DHCP update server according to the authentication result of the user control information, and a new network configuration to the client; ⑤ normal Internet users, DHCP DHCP server to process other user information.

所述步骤②中的用户控制信息包括但不限于:客户机的MAC地址,VLANDID和接入端的硬件信息。 ② the step of controlling the user information include, but are not limited to: the MAC hardware address of the client, VLANDID and the access terminal.

所述的DHCP服务器是内置在接入服务器中的。 The DHCP server is built in the access server.

所述步骤②中DHCP服务器响应客户端请求包括从指定的IP地址池中分配给客户端一个IP地址以及相应的网络配置。 In the step ② DHCP server responds to the client request comprises a client assigned IP address and a corresponding network configuration from the specified IP address pool. 这里的IP地址可以是一个私网地址。 The IP address can be a private network address.

所述步骤③中的认证可以是WEB认证,也可以是其它的认证,但是所采用得认证方式必须能够与DHCP服务器之间进行消息交互,使得DHCP服务器能够获得客户端认证结果。 ③ the authentication step can be WEB authentication, authentication may be another, but used must be able to obtain authentication message interaction between the DHCP server, the DHCP server can obtain the client authentication result.

所述步骤④中更新用户控制信息是指给用户在保持用户在线的条件下,通过更换用户控制信息以改变用户的访问能力,并将相应配置传给客户端,或者仍然让用户使用原来的私网地址,对此情况系统可以提供NAT(网络地址转换协议)转换。 Said step ④ updating user control information refers to a condition of holding the user to the user's online, user control information by changing the user's ability to change the access, and the appropriate configuration to the client, so that the user is still using the original or private network address, which the system can provide NAT (network address translation protocol) conversion.

所述步骤①中对未通过认证的非法用户和用户认证超时,DHCP服务器将收回IP地址,强制拆线,并生成记录。 In the step ① and the illegal user not authenticated user authentication timeout Currently, DHCP server IP address will recover, forcing stitches, and generates record.

采用本发明所述方法,解决了用户使用DHCP接入时对用户管理的较弱的问题,可以选择多种认证方式,扩展方便,极大减轻网络维护负担。 Using the method of the invention, to solve the problem for the weaker user management when using DHCP access users can select a variety of authentication methods to facilitate the expansion, greatly reduce the burden of network maintenance. 而且,本发明的方法很好地融合了DHCP便于网络配置的特性,同时又满足了接入服务器对用户管理的苛刻要求,使得DHCP成为一种可运营和方便易行的宽带接入方式。 Further, the method of the present invention are well DHCP convergence characteristics to facilitate network configuration, while meeting the stringent requirements of the user access management server, the DHCP can be a convenient and easy operations and broadband access.

图1是本发明提出的基于动态主机配置协议的用户管理方法的流程图。 1 is a flowchart of the management method based on the dynamic host configuration protocol proposed by the present invention a user. 如图1所示,一种基于动态主机配置协议的用户管理方法,包括下列步骤:①客户端发出DHCP请求;②DHCP服务器响应客户端请求,建立用户控制信息,限制用户访问能力;③用户进行认证,并将认证结果返回给DHCP服务器;④DHCP服务器根据认证结果更新用户控制信息,并将新的网络配置发给客户端;⑤用户正常上网,DHCP服务器处理用户的其它DHCP信息。 1, the user management method based on the dynamic host configuration protocol, comprising the following: ① From client sends a DHCP request; ②DHCP server responds to the client request, establishing user control information, the ability to restrict user access; ③ user authentication , and returns the authentication result to the DHCP server; ④DHCP control server updates the user information based on the authentication result, and the new network configuration to the client; ⑤ normal Internet users, DHCP DHCP server to process other user information.

用户认证前,运行DHCP客户端的用户主机发起DHCP请求到接入服务器,内置在接入服务器上的DHCP服务器从某个指定的IP地址池中分配给客户端一个IP地址(大部分情况是私网地址),分配地址是标准的DHCP协商过程,但为了达到可管理的目的,需要在接入服务器上建立用户的控制信息,以管理用户的上网行为。 Former user authentication, run the DHCP client host user initiates a DHCP request to the access server, built-in DHCP server on the access server to the client an IP address from the IP address pool to a specified (in most cases a private network addresses), assign addresses is standard DHCP negotiation process, but in order to achieve a manageable, users need to establish control information on the access server to manage user's online behavior.

建立用户控制信息的时候,DHCP服务器利用DHCP协商过程中收集到的客户端的基本信息,包括客户机的MAC地址,VLAN ID和接入端口等硬件信息,以此作为用户的唯一标识,并与IP地址和控制信息建立一一对应的关系。 When the establishment of user control information, using a DHCP server during negotiation basic information collected from the DHCP client, including hardware client MAC address, VLAN ID, and the access ports, as uniquely identifies a user, and the IP address and control information to establish one relationship. 这个唯一标识不是固定的,其生存期是从用户开始申请IP地址,上网到下线的一段时间内。 This unique identifier is not fixed, its lifetime is the beginning of the application from the user's IP address, access to some time off the assembly line. 这样做的好处之一是假如用户更换了网卡或改变的接入位置,网管不需要做相应的改动。 One benefit of this is that if a card user to replace or change the access location, the NMS does not need to make the appropriate changes.

建立用户控制信息之后,认证之前,客户端与DHCP服务器仍然会定期进行DHCP协商(主要是进行IP地址续租,详见DHCP协议),DHCP服务器仍然为客户端服务,但用户控制信息会判断用户是否超过规定认证时间,并适时将用户剔下线,回收IP资源。 After the establishment of user control information, before authentication, the client and the DHCP server will still be regular DHCP negotiation (mainly to renew the IP address, see DHCP protocol), DHCP server is still a client service, but the user will determine the user control information exceeds a predetermined time authentication, users will tick off the assembly line and timely recovery IP resources. 传统的DHCP服务器仅设一个租期,且如果用户不主动下线的话,就一直能使用分配好的IP地址。 The traditional DHCP server located only a lease, and if the user does not take the initiative off the assembly line, it has been able to use the allocated IP address.

用户获得IP地址后,就可以部分实现上网功能,但在控制信息的作用下,上网是受限的,因为此时尚未对用户进行认证。 After the user obtains an IP address, you can achieve part of Internet access, but under the control of the role of information, the Internet is limited, because at this time has not authenticate the user. 关于认证的方式已超出本文范围,这里以WEB认证为例说明其中的过程:认证前的用户只能访问与认证有关的指定的网站,或者接入服务器可以将用户的所有HTTP请求定向到某个指定的WEB服务器上(需要重定向功能),在用户主机上所见到的就是一个请求输入用户名和密码的登录页面,WEB服务器接收用户名和密码,送至AAA(认证,计费和授权服务器)服务器进行认证,并将结果发给接入服务器。 About Certified way beyond the scope of this article, here WEB authentication to an example in which the process: the user can only access pre-certification and certification related to the designated website, or the server can access all HTTP requests are directed to a user's on the specified WEB server (requires redirection), seen on the user's host is a request to enter a user name and password to login page, WEB server receives a user name and password to the AAA (authentication, authorization and accounting server) server for authentication, and the results sent to the access server. 这仅是一种可能的认证方式,实际应用的时候可以选择其它成熟方案,本文不作详细介绍。 This is only one possible authentication method, when practical application can choose other mature programs, we no details.

若用户认证通过,接入服务器根据认证结果重新配置用户的控制信息,按照为用户开户时所制定的规则实现用户的上网功能。 If the user authentication, access control information of the user to reconfigure the server according to the authentication result of the user's Internet access achieved in accordance with rules established by the user account. 并且在紧接着刷新用户控制信息后的DHCP协商过程中,将新的网络配置发给客户端。 In the negotiation process and DHCP refresh immediately after the user control information, the new network configuration to clients. 目前有两种较常用的更新方式,一是给用户换一个公网地址,另一个是仍然使用原来的私网地址,但提供NAT(网络地址转换协议)转换。 There are two ways to update more commonly used, one for a public address to the user, the other is still using the original private address, but provides NAT (network address translation protocol) conversion. 传统的DHCP服务器则无法做到这样动态地更新用户的网络配置,需要管理员的干预。 The traditional DHCP server are unable to do so dynamically update the user's network configuration requires administrator intervention. 如果认证不通过,则注销用户控制信息,即使用户的IP地址仍然在租期内尚未失效,但是在接入服务器上已经没有相应的控制信息,用户还是无法使用网络。 If the authentication is not passed, then log off the user control information, even if the user's IP address is still in the period of the lease has not expired, but on the access server has no corresponding control information, users still can not use the network.

认证通过后的用户开始正常的上网,而DHCP服务器只处理DHCP消息,不干涉用户的上网过程,基本不占用用户的带宽,此时的控制信息承担流量控制,链路检测和计费等功能。 Authenticated user by starting the normal access, and only the DHCP server a DHCP message handling, does not interfere with the user's access process, the user does not substantially occupied bandwidth, control information at this time assume the flow control, link detection and billing functions.

图2是本发明的一个实施例的DHCP接入的实现原理图。 FIG 2 is a DHCP access implementation principle diagram of an embodiment of the present invention. 如图2所示,用户A通过交换机B接入到宽带接入服务器C中,并从接入服务器C获得私网IP地址,以及DNS,掩码和路由配置(DNS地址,掩码和路由都是事先配置到DHCP服务器的数据库中,再通过DHCP协商配置到客户端)。 As shown, the user A 2 C access to the broadband access server through switch B, and the private network and obtain an IP address, and the DNS, and a routing configuration mask (DNS address, mask, and routes from an access server C DHCP is pre-configured to the database server, and then configure the client through the DHCP negotiation). 接入服务器B则通过配置用户A的控制信息使得用户A只能访问宽带接入门户D。 B through the access server configuration control information of the user A such that user A can only access the broadband access portal D. 然后用户A主动登录宽带接入门户D,或者由接入服务器C将用户A的所有访问请求转到宽带接入门户D(需要重定向功能)。 A user then actively logged broadband access portal D, C from the access server or access all of the user A requests to broadband access gateway D (requires redirection). 用户A登录宽带接入门户D后,访问的第一个页面就是身份认证页面,要求用户A输入用户名和密码,然后宽带接入门户D将信息送至E进行认证(或中间经过宽带接入服务器C中转),并将认证结果返回到宽带接入服务器C,刷新相应的用户控制信息,同时通知用户A认证结果。 A user login broadband access portal D, the first page is the page access authentication, requiring the user to enter a user name and password A, D and broadband access portal authentication information to the E (or through the middle of the broadband access server transit C), and returns the authentication result to the broadband access server C, the refresh control information corresponding to the user, while the user a notifies the authentication result. 对于认证通过的用户A,宽带接入服务器C根据认证后的用户控制信息与用户A进行DHCP协商,协商的结果可以是用户A继续使用私网IP也可以是使用新的公网IP,视系统配置情况而定。 A user authentication, the broadband access control server according to a user C after user authentication information for DHCP A negotiation result negotiation may continue to use the user A private IP network may be using the new public IP network, depending on the system configure the case may be. 若使用私网则宽带接入服务器C需要添加NAT功能或外接一个NAT服务器(图2中未表示)将用户A的私网IP转换成公网IP,使用公网IP则相对简单。 The use of the private broadband access server C to add a NAT NAT function or an external server (not shown in FIG. 2) to convert the private IP user A to a public network IP, public IP is relatively simple. 刷新客户端的网络配置后,在宽带接入服务器C的管理下,用户A就可实现宽带接入的功能,通过路由器F访问internet了。 Refresh client network configuration, under the management of broadband access server C, user A can implement the functions of the broadband access, access the internet through a router F.

Claims (10)

1.一种基于动态主机配置协议的用户管理方法,其特征在于包括下列步骤:①客户端发出DHCP请求;②DHCP服务器响应客户端请求,建立用户控制信息,限制用户访问能力;③用户进行认证,并将认证结果返回给DHCP服务器;④DHCP服务器根据认证结果更新用户控制信息,并将新的网络配置发给客户端;⑤用户正常上网,DHCP服务器处理用户的其它DHCP信息。 CLAIMS 1. A method for managing user-based Dynamic Host Configuration Protocol, comprising the following: ① From client sends a DHCP request; ②DHCP server responds to the client request, establishing user control information, the ability to restrict user access; ③ user authentication, and returns the authentication result to the DHCP server; ④DHCP server updates the user authentication information according to the control result, and a new network configuration to the client; ⑤ normal Internet users, DHCP DHCP server to process other user information.
2.根据权利要求1所述的一种基于动态主机配置协议的用户管理方法,其特征在于所述步骤②中的用户控制信息包括但不限于:客户机的MAC地址,VLANDID和接入端的硬件信息。 According to one of the claim 1, the user management method based Dynamic Host Configuration Protocol, wherein said step ② user control information includes but is not limited to: MAC address of the client hardware, VLANDID and access end information.
3.根据权利要求1所述的一种基于动态主机配置协议的用户管理方法,其特征在于所述的DHCP服务器是内置在接入服务器中的。 According to one of the claim 1, the user management method based Dynamic Host Configuration Protocol, wherein the DHCP server is built in the access server.
4.根据权利要求1所述的一种基于动态主机配置协议的用户管理方法,其特征在于所述步骤②中DHCP服务器响应客户端请求包括从指定的IP地址池中分配给客户端一个IP地址以及相应的网络配置。 According to one of the claim 1, the user management method based Dynamic Host Configuration Protocol, wherein said step ② the DHCP server responds to the client request includes a client IP address pool from a specified IP address and the corresponding network configuration.
5.根据权利要求4所述的一种基于动态主机配置协议的用户管理方法,其特征在于所述的IP地址是一个私网地址。 5. According to one claim 4, wherein the user management method based on a dynamic host configuration protocol, wherein the IP address is a private address.
6.根据权利要求1所述的一种基于动态主机配置协议的用户管理方法,其特征在于所述步骤③中的认证是WEB认证。 1 according to one of the claims based on the user management of a dynamic host configuration protocol, wherein said step ③ WEB authentication is an authentication.
7.根据权利要求1所述的一种基于动态主机配置协议的用户管理方法,其特征在于所述步骤④中更新用户控制信息是指在保持用户在线的条件下,通过更换用户控制信息以改变用户的访问能力,并将相应配置传给客户端。 According to one of the claim 1 to the user management method based Dynamic Host Configuration Protocol, wherein said step ④ updating user control information refers to a condition of holding the online user, the user control information to change by replacing user access capacity, and the appropriate configuration to the client.
8.根据权利要求1所述的一种基于动态主机配置协议的用户管理方法,其特征在于所述步骤④中更新用户控制信息是指仍然让用户使用原来的私网地址,但是提供NAT(网络地址转换协议)转换。 1 according to one of the claims based on the user management of a dynamic host configuration protocol, wherein said step ④ updated user information control means still allows the user to use the original private address, but provides a NAT (Network address Resolution protocol) conversion.
9.根据权利要求1所述的一种基于动态主机配置协议的用户管理方法,其特征在于所述步骤①中对未通过认证的非法用户,DHCP服务器将收回IP地址,强制拆线,并生成记录。 1 according to one of the claims based on the user management of a dynamic host configuration protocol, wherein said step ① of the illegal user not authenticated, the IP address of the DHCP server will recover, forcing stitches, and generates a recording.
10.根据权利要求1所述的一种基于动态主机配置协议的用户管理方法,其特征在于对于用户认证超时,DHCP服务器将收回IP地址,强制拆线,并生成记录。 According to one of the claim 1, the user management method based Dynamic Host Configuration Protocol, characterized in that the timeout for user authentication, the IP address of the DHCP server will recover, forcing stitches, and generates record.
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