Question 290
At Meadowbrook Finance, the enterprise firewall operations team administers FortiGate-based protection for payment gateways and regional private network connections under requirements for tight access controls and tested failover. The security reviewer verifies a claimed fix for: A customer application needs a dedicated public SNAT identity, yet its NAT pool overlaps with another service's address assignment. Which observed outcome BEST demonstrates that the intended correction works?
Explanation
Correct Answer
Outbound captures identify the intended unique translated source and sessions from other applications keep their original assigned pools. This outcome validates the intended correction for: A customer application needs a dedicated public SNAT identity, yet its NAT pool overlaps with another service's address assignment. The associated approved corrective action is: Allocate an approved nonoverlapping IP pool and bind it to the appropriate outbound policy or central source NAT rule. The Meadowbrook Finance reviewer can therefore distinguish observable protection from an untested configuration claim.
Incorrect Answers
An allowed client-initiated session receives its return traffic without an unnecessarily broad unsolicited inbound rule. This would verify a separate corrective action: Validate stateful session handling for the initiating policy and add separate rules only for genuinely new reverse connections. That separate change addresses: An engineer adds a second reverse-direction allow rule for established return packets because they do not understand FortiGate stateful sessions. It does not validate the current Meadowbrook Finance issue: A customer application needs a dedicated public SNAT identity, yet its NAT pool overlaps with another service's address assignment. The relevant acceptance evidence is: Outbound captures identify the intended unique translated source and sessions from other applications keep their original assigned pools.
A permitted test session has a valid route and an explicit allow-policy match, while removing its policy permission still blocks access. This would verify a separate corrective action: Configure the forward firewall rule and the required routing decision independently for the documented application flow. That separate change addresses: A rule review treats a policy route as if it grants application access and overlooks that FortiGate still evaluates firewall security policy. It does not validate the current Meadowbrook Finance issue: A customer application needs a dedicated public SNAT identity, yet its NAT pool overlaps with another service's address assignment. The relevant acceptance evidence is: Outbound captures identify the intended unique translated source and sessions from other applications keep their original assigned pools.
A known signed-in domain user matches the intended policy without an unnecessary FortiGate credential prompt. This would verify a separate corrective action: Use the supported Fortinet Single Sign-On identity mapping for the relevant Active Directory users and policy groups. That separate change addresses: A firewall rule requires explicit user login for domain-joined employees even though the approved design should use passive single sign-on. It does not validate the current Meadowbrook Finance issue: A customer application needs a dedicated public SNAT identity, yet its NAT pool overlaps with another service's address assignment. The relevant acceptance evidence is: Outbound captures identify the intended unique translated source and sessions from other applications keep their original assigned pools.