Here we will show you how to configure a GRE over IPSec LAN to LAN VPN tunnel between two Vigor2760 routers as shown in the diagram below:

Step 1:

Configure Site A 2760 router.

Step 2:

Configure Site B 2760 router.

 

Step 3: Check VPN status

Check the VPN status on Site A router.

Check the VPN status on Site B router.

Ping GRE tunnel to check the connectivity.