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

Last Modified

Nov 01, 2018

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)

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.

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 '' before being forwarded again with the correct IP address.
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