Design and Implementation of a Secured Enterprise Network using Dynamic Multipoint VPN with HSRP Protocol

The Purpose of this work is to improve the availability and remote access for secure enterprise network infrastructure by using dual hub dual DMVPN (Dynamic Multipoint VPN). Using multipoint GRE (mgre) over IPsec data transmission in the enterprise network is highly reliable secured. DMVPN is a technology that can be associated with different protocols concept such as IPsec encryption, next hop resolution protocol (NHRP), generic routing encapsulation (GRE) and it provides dynamic and static IPsec tunnel between spoke to the hub, spoke to spoke communication. In this paper, we implement the DMVPN technique to constructs a secure enterprise network for an organization and employing hot standby routing protocol (HSRP) to overcome the unavailability and failure of a certain network. The simulation was done by GNS3 and packets were captured by Wireshark software. It was revealed by the test that, DMVPN technology with HSRP protocols completely fulfills the demand of availability that is vital for any enterprises. It offers a faster mode, highly efficient and practically valued venture and also provides accessibility by keeping the network always in upstate thereby facilities for building a safer and highly dependable network infrastructure.