Chapter 9 High Availability for FortiOS 5.0 : Configuring and connecting HA clusters : Example: Transparent mode active-active HA configuration : General configuration steps
  
General configuration steps
This section includes web‑based manager and CLI procedures. These procedures assume that the FortiGate‑620B units are running the same FortiOS firmware build and are set to the factory default configuration.
In this example, the configuration steps are identical to the NAT/Route mode configuration steps until the cluster is operating. When the cluster is operating, you can switch to Transparent mode and add basic configuration settings to cluster.
General configuration steps
1. Configure the FortiGate units for HA operation.
Optionally change each unit’s host name.
Configure HA.
2. Connect the cluster to the network.
3. Confirm that the cluster units are operating as a cluster.
4. Switch the cluster to Transparent mode and add basic configuration settings to the cluster.
Switch to Transparent mode, add the management IP address and a default route.
Add a password for the admin administrative account.
View cluster status from the web‑based manager or CLI.