Research And Implementation Of Security Scheme For DMVPN Fusion Of MPLS VPN

IPSec VPN and MPLS VPN are competing VPN services developed by major Internet service providers and cloud vendors in the world.IPSec VPN has become one of the widely used VPN technologies with its security features;MPLS also satisfies many aspects of Internet bandwidth services because of its strong scalability,guaranteed service quality,and traffic engineering that surpass that of traditional IP technologies.The main research content of this article is as follows.The advantages and disadvantages of IPSec tunnels and GRE tunnels are compared and analyzed.A GRE over IPSec VPN scheme is designed for each existing problem of IPSec VPN and GRE.A DMVPN solution is proposed for the scalability of GRE over IPSec VPN.DMVPN is an IPSec VPN technology based on mGRE.Through experimental simulation,the security and implementability of the solution are tested and analyzed.The analysis shows that DMVPN is well implemented in terms of scalability and security,but there is traffic.Engineering and Qos(Quality of Service)deficiencies.In order to solve the problems of DMVPN traffic engineering and Qos,MPLS can make up for this defect;however,in practical applications,although MPLS VPN has ensured the security of data through the separation of address space and routing information,There is no risk of data being encrypted in the transmission process,so there is a risk of being stolen or tampered with.In view of the deficiencies of the above DMVPN and MPLS VPN,the solution that integrates DMVPN and MPLS is proposed by this paper.This not only solves the problem of stealing or tampering that easily occurs during data transmission in MPLS VPN,but also solves the problems of DMVPN traffic engineering and Qos.Through experimental simulation,the security and implementability of the project were tested and analyzed.The results show that the security features of data encryption,identity authentication,and integrity check provided by DMVPN are strong,and the scalability of MPLS VPN,traffic engineering,and Qos can be achieved.Achieve perfect fusion.