NSE5_FWB_AD-8.0 Questions and Answers

The FortiGate is acting as an upstream reverse proxy, so FortiWeb sees the FortiGate address as the direct source IP unless it is configured to read the original client IP from the inserted HTTP header. Since FortiGate already inserts X-Forwarded-For, the proper fix is to modify the FortiWeb protection profile or related client-IP configuration so FortiWeb uses that header for client IP detection. This restores accurate logging, rate limiting, reputation checks, and IP-based enforcement. Changing to one-arm proxy is unnecessary and disruptive. Disabling IP-based detection weakens protection instead of fixing attribution. Recreating the policy with a predefined profile does not address the missing client IP mapping. The correct adjustment is to trust and use X-Forwarded-For.

When FortiWeb is deployed behind a load balancer or upstream proxy, it may see only the load balancer IP address as the source for every request. This causes poor client identification and can lead FortiWeb to block many legitimate users as if they are one abusive client. The correct fix is to preserve the original client IP address in an HTTP header, commonly using X-Forwarded-For or a similar trusted client-IP header. FortiWeb can then be configured to read that header for accurate client identification, logging, rate limiting, and IP-based security decisions. Bot detection, signature updates, and HTTPS caching do not solve the core source-IP visibility problem.

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FortiAI improves investigation workflow by helping administrators interpret FortiWeb activity using natural language. Instead of manually reviewing many raw log entries, administrators can ask FortiAI questions about recent events, blocked requests, attack patterns, or policy behavior and receive a readable explanation. This helps reduce investigation time and makes troubleshooting faster, especially when reviewing attack logs, event logs, and traffic context. FortiAI does not disable logging; that would reduce visibility. It also does not replace FortiGuard updates, which remain important for signatures, reputation, and threat intelligence. Blocking malicious IP addresses automatically is a security action handled through FortiWeb policies and protections, not the primary FortiAI workflow benefit. The best answer is natural-language event explanation.

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The exhibit shows FortiWeb using HTTP content routing, with multiple routing policies and one policy marked as the default. The domain finance.fortinet.demo does not match the explicit routing rules shown, so FortiWeb falls back to the default HTTP content routing entry. In the policy table, app_server_1 is marked as the default route, meaning unmatched requests are sent to that server pool. The certificate does not determine back-end routing; it only supports TLS identity. FortiWeb does not automatically create routing policies for new domains, and the request is not passed to FortiGate for secondary content routing. Because no explicit hostname match exists, the default content routing policy handles the request.

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