How to Configure Site-to-Site IPsec VPN Between Two FortiGate 40F Firewalls (FortiOS v6 and v7)
Connecting branch offices or partners through a secure VPN tunnel is one of the most common FortiGate tasks.This guide shows how to configure a manual IPsec site-to-site VPN between two FortiGate 40F units running different firmware versions: Site Model Firmware Site B FortiGate-40F v7.6.3, build 3510 (GA.F) Site C FortiGate-40F v6.4.7, build 8726 (GA) 🧩 … Read more