MIPv6网络中蠕虫传播模型的构建与仿真

为了防止MIPv6中蠕虫的传播,基于MIPv6网络环境,提出一种新型的蠕虫MIPv6-Worm和MIPv6节点接触频率的计算方法,对MIPv6网络中蠕虫的传播策略进行了分析和研究,建立了MIPv6网络蠕虫传播模型--MWM.仿真结果显示:MIPv6-Worm在MIPv6网络中传播的初期,在117 s时达到传播的顶峰,在传播后期所有节点最终都转为免疫状态;MIPv6-Worm传播概率与节点通信半径、易感节点分布密度、节点运动速度均成正比.该模型较好地模拟MIPv6网络中蠕虫的传播规律,为采取有效措施防止MIPv6中蠕虫的大范围传播提供了理论依据.

Construction and Simulation of Worm Propagation Model in MIPv6 Networks

In order to prevent the propagation of MIPv6 worm，a new type of worm called MIPv6-Worm is presented in MIPv6 network environment. A method is presented to calculate the contact rate of MIPv6 nodes. In MIPv6 networks, propagation strategy of worm is analyzed and researched. MIPv6-Worm model (MWM), an epidemic model of MIPv6 network worm, is established. The simulation results show: during the initial stage of MIPv6-Worm propagation in MIPv6 network environment and in the time of 117s, the propagation reaches the summit. Each node turns to immune state at last. The propagation probability of MIPv6-Worm is proportional to the communication radius of nodes, distribution density of susceptible nodes and velocity of nodes. The model simulates the spread process of worm correctly in MIPv6 networks, and provides a theoretical basis for taking effective measures to prevent the propagation of MIPv6 worm in the large scale.