How many connection do you have in both sites? 2 - 2? To my point of
view, the configuration is static, so, you don't need a DNS resolution.
IPSec VPN is tipacaly used to site-to-site so, you only need to
configuring the VPN failover ALG to keep alwa...
Hi,read this section (6.4.2) SD-WAN->Performance SLA->Link health
monitor:https://docs.fortinet.com/document/fortigate/latest/administration-guide/580649/link-health-monitor
--n