/..

<WHAT>

Hot Standby Router Protocol (HSRP) is a Cisco proprietary First Hop Redundancy Protocol (FHRP) that provides high network availability by allowing multiple routers to work together to maintain access across the network. One router is active while others are on standby, ready to take over if the active router fails. Note that a virtual IP and a virtual MAC address are used for the FHRP. Implementing such configurations will not just ensure network redundancy, but also ensure data confidentiality.

<WHY>

Now with IPsec via GRE Tunneling, GRE has no encryption. With the help of IPsec, encryption is now possible, mitigating the risk of leaked or exfiltrated sensitive data from the tunnel. IPsec is used to set up VPNs because of the level of encryption and authentication.

<DEMONSTRATION>

This lab will demonstrate my knowledge and skills in configuring HSRP and IPsec over GRE to ensure a secure encrypted link over a tunnel connection between two networks.