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Cisco Bug: CSCvu80092 - 9800 - AireOS parity: RADIUS attribute [80] Message-Authenticator not included for AP authorization

Last Modified

Jul 21, 2020

Products (1)

  • Cisco IOS

Known Affected Releases

17.3 17.3.1 Amsterdam-17.1.1 Amsterdam-17.2.1 Bengaluru-17.4.1 Gibraltar-16.10.1 Gibraltar-16.11.1 Gibraltar-16.12.1

Description (partial)

9800 controllers do not include the RADIUS attribute [80] Message-Authenticator when preforming AP's MAC authorization with an external RADIUS server.

When configuring the 9800 WLC for AP's MAC authorization with an external RADIUS server, in the RADIUS access-request the 9800 does not include the attribute [80] Message-Authenticator.
This attribute is not mandatory, but often used for integrity checks.

AireOS is sending it by default. Customers migrating from AireOS to IOS-XE might experience AP authorization failing because of checks on the Message-Authenticator attribute on the RADIUS server side.
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