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Cisco Bug: CSCuq29356 - Tracebacks generated when using IP Source Guard on IOS-XE

Last Modified

Sep 17, 2019

Products (1)

  • Cisco Catalyst 3850 Series Switches

Known Affected Releases


Description (partial)

Traceback syslog messages may be generated when using IP Source Guard configurations on IOS-XE based switching platforms. Examples include later switches in the 4500 series, the 3850, and the 3650.

IP Source Guard configuration is applied to the affected device and bindings are added / changed.

The configuration of "ip verify source" under an interface without "mac-check" also enabled may trigger this behavior as well.
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