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Cisco Bug: CSCvv08684 - Cluster site-specific MAC addresses not rewritten by flow-offload

Last Modified

Oct 06, 2020

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases

9.10(0.3) 9.12(2.33)

Description (partial)

When a flow is offloaded to HW (static or dynamic flow offload) then the FTD puts in the Ethernet header of the egress packets the Global MAC address instead of the site-specific MAC. 

In specific scenarios the above behavior can cause a small traffic interruption due to MAC flap.

Flow-offload is used (dynamic or static)
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