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Cisco Bug: CSCsz21505 - Dot1x - No Port violation with new mac on wire before dot1x idle-timeout

Last Modified

Feb 13, 2018

Products (1)

  • Cisco Catalyst 3750 Series Switches

Known Affected Releases

12.2(50)SE

Description (partial)

Symptom:
No port violation is triggered when a new MAC address is seen on the interface, before dot1x idle-timeout occurs.
Conditions:
Port is configured for authentication order dot1x mab, closed mode, authentication violation restrict and authentication timer inactivity.  A client is authenticated behind a IP phone not supporting EAPoL Logoff or CDP 2nd Port Notification - the client is then replaced with a device not supporting dot1x before the idle-timeout period expires.
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