Preview Tool

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


Description (partial)

No port violation is triggered when a new MAC address is seen on the interface, before dot1x idle-timeout occurs.
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.
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.