To configure the second FortiGate unit (host name FGT_ha_2)

1. Register and apply licenses to the FortiGate unit. This includes FortiCloud activation, FortiClient licensing, and

FortiToken licensing, and entering a license key if you purchased more than 10 Virtual Domains (VDOMS).

2. On the System Information dashboard widget, beside Host Name select Change.

3. Enter a new Host Name for this FortiGate unit.

New Name                                  FGT_ha_2

4. Select OK.

5. Go to System > HA and change the following settings:

Mode                                           Active-Active

Group Name                              example2.com

Password                                   HA_pass_2

6. Select OK.

The FortiGate unit negotiates to establish an HA cluster. When you select OK you may temporarily lose connectivity with the FortiGate unit as the HA cluster negotiates and because the FGCP changes the MAC address of the FortiGate unit interfaces.

To reconnect sooner, you can update the ARP table of your management PC by deleting the ARP table entry for the FortiGate unit (or just deleting all arp table entries). You may be able to delete the arp table of your management PC from a command prompt using a command similar to arp -d.

7. Power off the second FortiGate unit.