Question 850
The user authenticates on a portal with a certificate warning but remains denied because the post-authenticated firewall policy matches the wrong group. Which observable result BEST demonstrates that the intended FortiGate security or connectivity requirement is satisfied?
Explanation
Correct Answer
Unauthenticated clients encounter the intended portal or deny behavior and authenticated users reach only their approved resources. This is the operational validation outcome rather than merely an enabled setting. A captive portal requires appropriate traffic interception, browser/TLS behavior and a valid identity mapping; it is not activated merely by naming a user group in a firewall address object. Scenario: The user authenticates on a portal with a certificate warning but remains denied because the post-authenticated firewall policy matches the wrong group.
Incorrect Answers
A test flow shows symmetric forward and return tuples, correct NAT mappings and stable application transactions through the intended policy. This result would test Diagnosing translated session return path and policy NAT mismatches but does not demonstrate the desired FortiGate outcome here. Verify instead: Unauthenticated clients encounter the intended portal or deny behavior and authenticated users reach only their approved resources. Scenario: The user authenticates on a portal with a certificate warning but remains denied because the post-authenticated firewall policy matches the wrong group.
Tests confirm approved users reach only intended destinations and services without unintended wildcard access after object or zone changes. This result would test Address and service objects, interface zones, and policy scoping but does not demonstrate the desired FortiGate outcome here. Verify instead: Unauthenticated clients encounter the intended portal or deny behavior and authenticated users reach only their approved resources. Scenario: The user authenticates on a portal with a certificate warning but remains denied because the post-authenticated firewall policy matches the wrong group.
Authorized users receive the intended group or MFA result and unauthorized or unavailable-server attempts fail according to explicit policy. This result would test RADIUS authentication and policy-bound MFA validation but does not demonstrate the desired FortiGate outcome here. Verify instead: Unauthenticated clients encounter the intended portal or deny behavior and authenticated users reach only their approved resources. Scenario: The user authenticates on a portal with a certificate warning but remains denied because the post-authenticated firewall policy matches the wrong group.