In the Portal authentication scenario, when iMaster NCE-Campus is used as the Portal server and the Huawei wireless controller is the access device, which of the following port numbers is used by…

Question

Options

• A50200
• B1813
• C2000
• D1812

• B
  6% (1)
• C
  83% (15)
• D
  11% (2)

Explanation

Port 2000 is the default port on Huawei wireless controllers (ACs) for receiving and processing Portal protocol packets from the Portal server (iMaster NCE-Campus). This is a Huawei-specific default that applies to the AC's Portal listener, separate from any RADIUS configuration.

Why the distractors are wrong:

• A (50200) - Not a standard Portal or RADIUS port; unrelated to Portal protocol processing on this device.
• B (1813) - This is the IETF-standard RADIUS accounting port, used between the AC and the RADIUS server, not for Portal packet handling.
• D (1812) - This is the IETF-standard RADIUS authentication port, again for AC-to-RADIUS communication, not for the Portal protocol itself.

Memory tip: Think "Portal opened in 2000" - just as web portals were booming around the year 2000, Huawei's Portal protocol default port is 2000. The 1812/1813 pair belongs to RADIUS (think "RADIUS = 18xx"), while Portal stands apart at 2000.

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