The Research Of MPLS VPN's Mobility And Safety In IPv6 Network

With the development of Information-Technology, especially the computer technology which is represented by network communication technology provides large space for the development of mobile work. In the processing of moving work,how to ensure the node's fast moving and security is the increasingly inpending problem.Compared with IPv4,next generation Internet Protocol IPv6 has unexampled advantages in multi-aspects.It has a lot of improvment on motivity and security compard with IPv4.So,the application of the network technology on IPv6 will be the hotspot problem of the vocation field.Virtual Private NetWork(VPN) make the information transfer between the corporation more safe and more expediently,and it also reduce the cost and make the extend more easily.Because of it's huge commerce value and wide development potential,VPN has become one of the most vitality network technology study field.MPLS VPN has used the MPLS technology on the VPN ,It make use of the effect of the MPLS to transfer the data bag,and design the private network of the corporation on the Internet,carry out the broad band connect of the voice,picture and some real time data operation,so it supply high quality services to user. Their combination syncretize the good effect and safty of the data bag transfer.According to these basic fundamental,We make some improvement on MPLS VPN of IPv6,add to the support on the mobile node of VPN station,and we aim at tow instance about node motivity and station motivity,give different resolvents.It's basic idea is to make some changes to the CE or PE,assume them the office of the Home Aggent of the Moving Node,so we resolve the problem of the terminal VPN fixture access the network in the motion status.At the same time,a kind of service provider provided,centralized authentication and distributed access mechanism is put forward to ensure the security of the mobile access.At last, We make a analysis and summarization of the MPLS VPN'project,analyze it development direction,and view it appliance foreground.