Unicast HA heartbeat
In virtual machine (VM) environments that do not support broadcast communication, you can set up unicast HA heartbeat when configuring HA. Setting up unicast HA heartbeat consists of enabling the feature and adding a peer IP address. The peer IP address is the IP address of the HA heartbeat interface of the other FortiGate VM in the HA cluster.
You can enable unicast HA heartbeat from the GUI by going to System > HA and enabling Unicast heartbeat and adding an Peer IP, which is the address of the heartbeat interface of the other FortiGate VM in the HA cluster.
Enter the following CLI command to enable unicast HA heartbeat over the port3 interface:
config system ha
set hbdev port3 50
set unicast-hb enable
set unicast-hb-peerip 172.30.3.12
end
Unicast HA is only supported between two FortiGates VMs. The heartbeat interfaces must be connected to the same network and you must add IP addresses to these interfaces.