This post is about the configuration of IPsec VPN between Azure and Fortinet Fortigate firewall, as part 2 of the post “How to Configure Azure Hub and Spoke Topology” Overall Topology Environment *On-prem Environment has a pair of Fortinet Fortigate firewalls with a public IP of 4.4.4.4 *Virtual Network Gateway (with local gateway and connection … Continue reading How to Configure IPsec VPN between Azure and Fortigate Firewall