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Cisco Bug: CSCvv13862 - WSA uses wrong SRC MAC responding to vIP requests in High Availability deployment

Last Modified

Sep 24, 2020

Products (1)

  • Cisco Web Security Appliance

Known Affected Releases

11.7.2-011 11.8.1-023 12.0.1-268 12.0.1-334

Description (partial)

Production traffic may start flapping between MASTER/BACKUP WSAs after failover/preempt. LAN devices or SDN  Controllers (for instance ACI) may report duplicate IP errors.

- WSAs are deployed in High Availability mode
- SDN solution (Cisco ACI, etc) is used in the LAN network 
- Data plane endpoint detection is enabled
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