GNS3 Lab: GRE, IPsec, DMVPN Labs.
GRE Lab Generic Routing Encapsulation (GRE) is a tunneling protocol for encapsulating a wide variety of protocols like EIGRP, and OSPF packet types inside IP tunnels thereby generating a virtual point-to-point connection in my case C1 (10.1.3.1) to C2 (10.1.3.2) connection to routers across an IP network at remote points tunneling using GRE permits network…