Dear Viewer,


#GRE (Generic Routing Encapsulation) tunnels are one of the most versatile tools available to a network engineer.


In this tutorial we will  learn that How GRE Tunnel works and How to configure the Gre VPN Tunnel on Cisco Routers.We will Configure GRE VPN using Command Line on Cisco Routers.
  

LAB - 2







CLI COMMANDS  : 



! 1. Configure the Tunnel Interface

R1


Interface Tunnel 1
 ip address 192.168.1.1 255.255.255.0
 tunnel source 199.1.1.1
 tunnel destination 200.1.1.1


R2


Interface Tunnel 1
 ip address 192.168.1.2 255.255.255.0
 tunnel source 200.1.1.1
 tunnel destination 199.1.1.1


! 2. Configure the Routing Protocol on the Tunnel Interface and the Internal LAN Segments.


R1


Router eigrp 111
 network 192.168.1.0
 network 10.0.0.0


R2


Router eigrp 111
network 192.168.1.0
network 10.0.0.0

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