Encapsulation – VPN, GRE Tunnel ?

Why do we need GRE Tunnel GRE Tunnel, it Encapsulate the packet which is quite similiar with VPN IPSEC. GRE Tunnel can support Dynamic Routing protocol through the tunnel, it is the reason why it takes an advantages. In DMVPN, GRE will play its role. Another advantage of GRE Tunnel, is easiler to be configured. CONFIGURATION Between R1-R2-R3 both has […]