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Cisco Bug: CSCvi07974 - FTD: Layer 2 packets (ex: BPDUs) are dropped during snort restarts (Inline/Passive Interfaces Only)

Last Modified

Sep 12, 2019

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases


Description (partial)

Layer 2 traffic like BPDUs are sent to Snort where there is little if any processing that is done, just incurring a delay in those packets.  Particularly in Inline mode, this isn't necessary.

Cisco Firepower Threat Defense running version 6.2.1 and later.
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