| With the rapid development of networks, the future network will be ALL-OVER-IPnetwork environment, it is for the mobile office and mobile networks more and morehigh-security requirements. Mobile IP technology in the network layer of mobile nodeimplementation, IPSec technology in the network layer implementation of the IP packetsecurity, mobile IP and IPSec with IP layer implementation in mobile and secure mobileVPN technology, is currently a hot research problem. Mobile VPN configuration has anumber of different environment, one of the mobile IP home agent is located in privateafter the VPN gateway hidden mobile VPN network architecture, is the most typicaldeployment of enterprise applications, the paper called the secretive homeland mobileagent environment VPN.Based on the hidden home agent environment mobile VPN features of the basicstructure of the analysis, we found the existence of the IKE frequent consultations VPN,and mobile IP registration information through the VPN gateway blocked the two majorproblems. In this paper, aim these two problems; we designed a face VPN deploymenttransparent, flexible Proxy Mobile IP VPN (PMVPN) system. Proxy Mobile IP VPNthrough the Foreign Agent care-of address to solve the problem VPN IKE frequentconsultations, through the VPN gateway to set up a new home agent Proxy Mobile IPnode to resolve the registration VPN gateway obstruction, as well as redesigning themobile IP registration mechanism and process of the tunnel package. Based onDynamics Mobile IP system for mobile IP-based software, combined with the designidea PMVPN given Proxy Mobile IP VPN system, the initial realization of, and verifiedby tests.As the secretive home agent is the most widely range of enterprise applicationenvironments, the paper environment for this new mobile VPN solution enablesbusiness users from the general IPSec VPN seamlessly upgrade to the mobile VPN, andto meet business users of mobile and security double the demand. |
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