Scalable Dynamic and Multipoint Virtual Private Network Using Internet Protocol Security for an Enterprise Network

Abstract

Virtual private networks (VPN) provide a remote secure connection for clients toexchange information with company networks. Dynamic Multipoint Virtual PrivateNetwork “DMVPN” is a solution for the dynamic creation of virtual Private IP tunnelsbetween multiple sites automatically, quickly, and with the least configuration.Dynamic Multipoint VPN (DMVPN) used in this research with some supportingprotocols to allow the changing of Internet Protocol (IP) addresses of remote locations.It proves to be a very scalable VPN technique with minimal configurations androbustness. The lesser delay between two branches of an organization by establishingdirectly protected tunnels called Shortcut Tunnels. These Shortcut Tunnels aredynamically created when traffic flows on demand and are protected by IPsec.DMVPN network is implemented with security protocols for Internet key managementand exchange to Ensure Data confidentiality, integrity, and authenticity using theGNS3 Network simulator. The testing and verification analysis of data packets is doneusing both PING-tool and Wire- shark to ensure the encryption of data packets duringdata exchange between different sites.