FortiGate Site-to-Site IPsec VPN with Overlapping Subnets

In this video tutorial, we will show you how to configure on FortiGate, site-to-site IPsec VPN between two locations with overlapping network or subnets.
If you have any questions or need further assistance, please feel free to leave a comment below. Don’t forget to subscribe to our channel for more helpful tutorials.

[@psychoticapex]

what if you have to create a tunnel with a site whose subnets are overlapping with another remote site (connected also through ipsec)? there is no need for NAT locally, only foreign, right?

[@verifine-academy]

kindly clarify your question

[@beatrices.4601]

I have the same question. I have a problem with multiple Cloud SP with the same overlapping subnet.

[@beatrices.4601]

What if i have site A connected via ipsec s2s with two different sites B and C, and B and C have the same overlapping subnet that's not overlapping with site A...

[@farojaco]

​@@beatrices.4601 with that setup, you would have to create individual site to site vpn from Site A. Site to Site from Site A to Site B and Site to Site from Site A to Site C, since there is no overlapping issue with Site A, each Site to Site config should be fine cause Site B has a different public IP than Site C