关于RADIUS协议扩展属性的研究

目前,电信运营商和服务提供商以RADIUS服务器进行集中认证计费应用的最为普及和广泛。然而,现行的RADIUS协议有许多的局限性。例如,仅仅局限于对用户信息进行验证、用户记帐等等功能。目前业界已经有很多RADIUS协议相关的扩展属性方面的研究,并且已经成为规范。但是,这些相关研究大部分都集中于RADIUS协议的安全性方面,而比较忽视对于电信这种服务类行业来说至关重要的一个方面:用户需求。针对这个问题提出了两种适用性极强的新RADIUS扩展属性:断开连接(Disconnect)属性和更改权限(Change-of-Authorization)属性。断开连接属性可以支持实时断开用户的网络连接。更改权限属性可以支持实时更改用户的会话特征(包括带宽、资费以及可以访问的网络资源等等)。主要对新扩展属性的具体配置、包的格式、类型进行了详细的阐述。

Extended Attributes on the RADIUS Protocol Research

At present, telecom operators and service providers to RADIUS server authentication and accounting application to focus the most universal and extensive. However, the existing RADIUS protocol has many limitations. For example, only limited information to the user authentication, user accounts and so on. At present, the industry has a lot of agreements related to the expansion of RADIUS attribute research, and has become the norm. However, most of these studies have focused on the RADIUS protocol security, a...