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Cisco Bug: CSCul05240 - WLC traceback in dtlArpNpuAdd(), rcv GARP pkts from WGB with '0.0.0.0'

Last Modified

Nov 01, 2018

Products (1)

  • Cisco IOS

Known Affected Releases

7.6(1.225)

Description (partial)

Symptom:
Cisco Wireless LAN Controller prints a traceback error message on the WLC console.

A decode of the traceback by TAC would point to the function dtlArpNpuAdd()

There is no operational impact.

Conditions:
This only occurs with autonomous Cisco Aironet series Access Points configured for Workgroup Bridge Mode in the deployment.  Due to a bug in the WGB, GARP frames are forwarded to the WLC with the incorrect IP address '0.0.0.0' before being forwarded again with the correct IP address.
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