Question 6
A network administrator wants to set up redundant IPsec VPN tunnels on FortiGate by using two IPsec VPN tunnels and static routes.
All traffic must be routed through the primary tunnel when both tunnels are up
The secondary tunnel must be used only if the primary tunnel goes down
In addition, FortiGate should be able to detect a dead tunnel to speed up tunnel failover
Which two key configuration changes are needed on FortiGate to meet the design requirements? (Choose two,)
Configure a high distance on the static route for the primary tunnel, and a lower distance on the static route for the secondary tunnel.
Enable Dead Peer Detection.
Configure a lower distance on the static route for the primary tunnel, and a higher distance on the static route for the secondary tunnel.
Enable Auto-negotiate and Autokey Keep Alive on the phase 2 configuration of both tunnels.
Correct answer: BC
Explanation:
B - because the customer requires the tunnels to notify when a tunnel goes down. DPD is designed for that purpose. To send a packet over a firewall to determine a failover for the next tunnel after a specific amount of time of not receiving a response from its peer.C - remember when it comes to choosing a route with regards to Administrative Distance. The route with the lowest distance for that particular route will be chosen. So, by configuring a lower routing distance on the primary tunnel, means that the primary tunnel will be chosen to route packets towards their destination.
B - because the customer requires the tunnels to notify when a tunnel goes down. DPD is designed for that purpose. To send a packet over a firewall to determine a failover for the next tunnel after a specific amount of time of not receiving a response from its peer.
C - remember when it comes to choosing a route with regards to Administrative Distance. The route with the lowest distance for that particular route will be chosen. So, by configuring a lower routing distance on the primary tunnel, means that the primary tunnel will be chosen to route packets towards their destination.