Technical Note: Supported Versions for Site-to-Sit...

FortiGate

FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.

Article Id 195858

Description

This article provides information regarding official supported versions between Microsoft Azure and FortiOS for Site-to-Site IPsec VPN.

Solution

The official FortiOS versions supported for Site-to-Site IPsec VPN with Microsoft Azure are:

- 5.2.7 and later
- 5.4.x

Microsoft provide official OS compatibility on the following link https://docs.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-about-vpn-devices

In case of using older FortiOS versions (5.2.6 or older), it is possible to experience phase2 random failures after server minutes/hours.

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Technical Note: Supported Versions for Site-to-Site IPsec VPN between Microsoft Azure and FortiGate