Changsha Telecommunications Radius System Design And Engineering Practice

In the Remote Authentication Dial in user service system definition is based on the and, which at present is the most common application of the3A protocol. In essence, Remote Authentication Dial in user service system belongs to the C/S structure type of agreement, the client is initial form (NAT) server, can say, all currently running the client software PC to become a client. Protocol authentication has many advantages, for example, authentication mechanism is flexible and changeable, either through the PAP form, also can take or login authentication mode. Protocol can be extended, in the exercise of its functions is to vector based. But also to manufacturers of proprietary property expansion support. Thanks to the protocol is simple and convenient and clear and reliable and scalable, received a large number of applications in a variety of business, has a wide range of applications, such as:the Internet, ordinary telephone line, broadband Internet access, online communities and dialing network service. Current, and proposed the802.1x standard, this standard to port as the basis, mainly in wireless network access authentication application, however, in the actual authentication operation is also based on protocol.In this paper, in Changsha Metro Network Authentication Dial in user service application technology. The article begins on telecommunication network about the application of identity authentication technology and the development trend of the introduction of basic concepts, to the current development situation, China’s telecommunications network operators to the network environment for the analysis and elaboration, and proposed the technology as the foundation to achieve some of the related ideas of identity authentication system. Then, the paper’s core technology and the use of protocols are discussed, the features and is several working methods were introduced, and lists its mode and the current mainstream of several ways, and then, put forward that based on centralized identity authentication system of the whole structure the design idea, the Changsha Metro Network User Authentication Dial in the core part of the system are described, also is a technology based on the configuration management subsystem. Finally, the actual operation situation of the system analysis and research, and to do related research conclusion.