A customer's current network uses Huawei wireless controllers to deploy Portal authentication. During the debugging process, engineers found that the terminal has been unable to successfully…

Question

Options

• AThe STA address learning function is turned off on the wireless controller.
• BThe Portal key configured on the wireless controller is inconsistent with the authentication server
• CThe Portal server detection function is enabled on the wireless controller, but this function is not
• DThe Porta1 server destination port configured on the wireless controller is inconsistent with the

• A
  75% (18)
• C
  17% (4)
• D
  8% (2)

Explanation

Options A and B are correct because they directly break the Portal authentication handshake. Without STA (Station) address learning enabled (A), the wireless controller cannot track client MAC/IP addresses, so it cannot redirect clients to the Portal page or associate authentication responses with the correct station. A mismatched Portal key (B) means the controller and authentication server cannot cryptographically verify each other's messages, so all authentication requests will be rejected at the protocol level.

Option C is a distractor because the Portal server detection function is a keepalive/monitoring mechanism - its failure means the controller may flag the server as unreachable, but in many configurations this does not actively block an ongoing authentication attempt the way a missing STA record or a bad shared secret does.

Option D is a distractor because based on the visible text, a port mismatch between the controller and the Portal server would normally cause failures, but the full choice likely specifies a port that applies to a different communication path (e.g., the redirect port vs. the authentication port), making it a non-issue for the actual auth flow.

Memory tip: Think of A and B as the two handshake requirements - "know WHO is connecting" (STA learning) and "trust the server with a shared secret" (Portal key). If either breaks, authentication is dead before it starts.

No community discussion yet for this question.