主动网络的构造和网络安全策略

主动网络的概念是根据现存的计算机互联网络所存在的问题提出的,它是计算机网络技术未来发展的重要趋向之一。在主动网络内,路由器、网桥等设备可执行由用户传送的信息包中的程序代码,并根据用户的权限和要求改变工作状态,使用户具备对网络编程和设置的能力。与传统的互联网络相比,主动网络将为用户提供更加丰富、灵活的服务。但由此也产生更多的危及网络安全方面的新问题。文章根据著者在国外工作期间的研究心得和所收集的相关资料撰写而成,简要介绍主动网络的基本构造和网络安全方面的问题及对策。

The Architectures and Security Schemes of Active Network

The concept of Active Network raises a point of how to overcome the shortcuts in existence of nowadays Internet.Active Network is one of the important developing trends for Internet technology.In the Active Network,routers and switches can perform computations on user data,while packets can carry programs to be executed on routers and possibly change their state.Therefore the user is endowed with the ability to program the network.Comparing with the traditional computer network,the Active Network can provide a much more flexible network infrastructure and richer services.But it also raises some considerable network-security issues.This paper is based on what the author learned and the corresponding materials collected during the period of working at abroad.It gives out a brief introduction to the architectures and security scheme of Active Networks.