Question 1080
At Northbridge Transport Authority, the FortiGate 7.6 security administration team encounters the following authorized operational case: phase-one and phase-two SAs are established but branch traffic exits the plain internet WAN instead of the IPsec tunnel. They need a defensible FortiOS configuration, diagnosis, validation or prevention decision. Which recurring review is most relevant to the same root risk?
Explanation
Correct Answer
Review tunnel routes when branch CIDRs change. This recurring practice addresses ipsec tunnel static route because an established VPN cannot carry private prefixes without routing their packets to it. It reinforces the supported change to add or correct the intended destination route through the virtual IPsec interface rather than relying on an unrelated periodic audit.
Incorrect Answers
Coordinate cryptographic suite changes across tunnel peers reduces recurrence of ipsec phase-two pfs agreement, rather than the observed ipsec tunnel static route issue. The relevant preventive control for Northbridge Transport Authority is: Review tunnel routes when branch CIDRs change. This distinction matters because an established VPN cannot carry private prefixes without routing their packets to it.
Reconcile site address inventories with VPN selectors after subnet additions reduces recurrence of ipsec traffic selector after subnet growth, rather than the observed ipsec tunnel static route issue. The relevant preventive control for Northbridge Transport Authority is: Review tunnel routes when branch CIDRs change. This distinction matters because an established VPN cannot carry private prefixes without routing their packets to it.
Review reciprocal route tables after changing branch prefixes reduces recurrence of ipsec asymmetric vpn egress, rather than the observed ipsec tunnel static route issue. The relevant preventive control for Northbridge Transport Authority is: Review tunnel routes when branch CIDRs change. This distinction matters because an established VPN cannot carry private prefixes without routing their packets to it.