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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 concept of active network is based on the existing problems in the computer Internet, which is one of the important trends in the future development of computer network technology. In the active network, routers, bridges and other devices can perform the program code transmitted by the user in the packet, and change the working status according to the user’s permissions and requirements, allowing users to have the ability to network programming and settings. Compared with the traditional Internet, the active network will provide users with more rich and flexible services. But this also creates more new problems that endanger cybersecurity. The article is written based on the research experience of the authors working abroad and the relevant information collected, and briefly introduces the basic structure of active network and network security problems and countermeasures.