校园网的一项很重要的工作就是为广大师生提供访问Internet的通道。但是,对于上网也必须有所限制。如何保证既安全通畅又可以对上网的用户进行监控和管理,一直是校园网和企业网的管理人员面临的主要难题。目前,已经出现了一些相关的软件产品,也有专为电信运营商开发的硬件产品。但是,这些产品对于校园网的应用具有一定的局限。为此,我们自行开发了一套网关型宽带网管理计费系统,基本满足了我校的应用需求。 A very important work of the campus network is to provide teachers and students access to the Internet channel. However, there must be restrictions on accessing the Internet. How to ensure that both secure and unobstructed access to the Internet users to monitor and manage, has been the campus network and enterprise network managers are the major challenges. Currently, there have been some related software products, there are also designed for telecom operators to develop hardware products. However, these products have certain limitations on the application of the campus network. To this end, we have developed a set of gateway-based broadband network management billing system that basically meets the application needs of our school.