目前基于IP模型的网络体系结构缺乏一定的灵活性,制约和延缓了新协议、新应用的开发与应用。主动网络把计算能力从端结点引入到网络内部,赋与网络可编程能力。但它在提供灵活性的同时,也产生了比以往网络更多的安全问题,本文从四个方面分析和探讨了对各种安全问题的不同解决办法。并给出了一些新的解决思路。 At present, the network architecture based on IP model lacks certain flexibility, restricting and delaying the development and application of new protocols and new applications. Active network to the computing power from the end node into the network, endowed with network programming ability. But it also provides more flexibility than the previous network also produced more security issues, this article from four aspects of analysis and explore different solutions to various security issues. And some new solutions are given.