一种基于VMN的移动IP快速切换方法

为了满足用户对移动IP服务的安全性、低时延方面的要求,弥补现有移动IPv4协议中切换方案的不足,在移动IP/AAA模型的基础上,提出了一种基于VMN(虚拟移动节点)的移动IP快速切换方法。该方法增强了移动IP联合AAA的基本模型,并在MA(移动代理)上构建了一种新的数据结构;通过在NFA和OFA之间建立一个新的双向隧道,将VMN中的数据报文进行快速转移,在没有数据报文丢失的情况下,实现了快速低时延的切换;通过分发新的临时安全关联以及认证票据,有效地提高了移动IP在注册和切换过程中的安全,同时有效地降低了AAAH和AAAF之间的网络负载;通过对该方法进行安全性分析和仿真试验表明,我们提交的方法是安全有效的。

A VMN-based Fast Handoff Method for Mobile IP

A VMN-based MIPv4 fast handoff method based on the basic MIP/AAA model was presented for satisfying the users' demands of security and low latency in MIP services and making up the existing insufficiency in the current MIPv4 handoff method.The method strengthens the basic MIP/AAA model,and sets up a novel data structure in the mobile agents.Through establishing a new bidirectional tunnel between NFA and OFA,it fast transforms the data packets of VMN between them,and realizes the fast low latency handoff under no data packets losing.Through distributing the new temporary security association and the authentication ticket,it enhances the security in the MIP's registration and handoff process,and effectively reduces the network loads between AAAH and the AAAF.The secure analysis and the simulation experiment for the presented method indicates that the method is more secure and effective.