Configure health check probe responders

To configure health check probe responders:

1. In Google Cloud console, go to Network Services > Load balancing.
2. Find the external and internal load balancers (LB) that you created and note their frontend IP addresses (public for external LB and private for internal LB).
3. In the FortiGate CLI, add a secondary IP address to port1, replacing ELB_FRONTEND with the external LB frontend public IP address:

   config system interface
     edit port1
     set secondary-IP enable
     config secondaryip
       edit 0
       set ip ELB_FRONTEND/32
       set allowaccess probe-response
       next
     end
     next
   end
   

4. Repeat the same step for port2 and the internal LB frontend:

   config system interface
     edit port2
     set secondary-IP enable
     config secondaryip
       edit 0
       set ip ILB_FRONTEND/32
       set allowaccess probe-response
       next
     end
     next
   end
   

5. Enable HTTP probe responses:

   config system probe-response
     set mode http-probe
   end
   

6. Enter y to confirm restarting the probe response daemon.