2) After that, click on 'Create New' under Overlays. Then enter the local subnet from VM01, which is in our case 192.168.1.0/24:For the VM02, follow the same step 1, then on step 2 configure the overlay as follows:As illustrated on the above screenshot, it's not required to put any subnet if the port2 is already configured with the correct subnet.In this case, port2 is configured with 192.168.2.254/24 IP address, so the FortiGate has a connected route to this subnet.
Configuring the local subnet as 192.168.2.0/24 via the menu will also work.
After setting this click on 'Apply'.
The overall configuration should look like this:The VPN should come up on IPsec Monitor page:If the VPN doesn’t come up, double check that Overlay Names are the same on both FortiGates as this is case sensitive.
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