Unifi USG and FortiGate site to site VPN tunnel configuration guide

Introduction

This doc will guide you to build a site to site VPN tunnel, between a Unifi Gateway (USG) and a Fortigate firewall. Both devices will have public IP addresses, and we will use PSK, and static routes for phase 2.

USG config

Fortigate config

Tunnel config

Network: Authentication: Tunnel Phase1: Tunnel Xauth: Tunnel Phase2:

Policy Config

Static routes