摘要： 采用NS 对MobileIP 在无线网络和有线网络之间的通信过程进行模拟分析。建立了含有5 个有线结点、2 个基站和1 个移动结点的拓扑结构，对移动结点的通信路径和过程进行了模拟和分析。在模拟中，可以通过修改参数，如TCP 的数据包大小、网络队列的类型选择，来获得不同网络方案的对比资料。通过模拟反过来也能为系统的布置、配置提供很好的参考。

关键词: MobileIP；NS；移动结点；家乡代理；外部代理

Abstract: The simulation and analysis of MobileIP in wired/wireless network is carried out by NS. The topology include five wired nodes, two base stations and one mobile host is build, the simulation and analysis of mobile host is carried out in this topology. In the simulation, comparison data of different network solutions can be gained by modifying parameters such as the size of TCP packages and the type of network queues. In reverse, good reference for system’s disposal and layout can also be provided through simulation.

Key words: Network simulator (NS); Mobile node; HA; FA