High availability HA in Transparent mode
FortiGate-400 Installation and Configuration Guide 85
Figure 15: Sample active-passive HA configuration
10 Repeat this procedure to add each FortiGate unit in the HA cluster.
When you have configured all of the FortiGate units, proceed to “Connecting the HA
cluster to your network”.
Connecting the HA cluster to your network
To connect the HA cluster to your network you must connect all matching interfaces in
the cluster to the same hub or switch. Then you must connect these interfaces to their
networks using the same hub or switch.
Also, you must connect all of the HA interfaces in the cluster to their own hub or
switch. You can also connect a management computer to this hub or switch. The units
in the cluster are constantly communicating HA status information to make sure the
cluster is functioning properly. For this reason, the connection between the HA ports of
all of the FortiGate units in the cluster must be well maintained. An interruption of this
communication can cause unpredictable results.
Switches are recommended for better performance.
The network equipment to use and the procedure to follow are the same, whether you
are configuring the FortiGate units for active-active HA or active-passive HA.
To connect the FortiGate units to your network:
1Connect port 1 of each FortiGate unit to a switch or hub connected to your internal
network.
2Connect port 2 of each FortiGate unit to a switch or hub connected to your external
network.
3Optionally connect port 3 of each FortiGate unit to a switch or hub connected to
another network.
4Connect the 4/HA interfaces of the FortiGate units to another switch or hub.
When you have connected the cluster, proceed to “Starting the HA cluster”.