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Cisco Bug: CSCvv27933 - Incorrect routing update on standby ASA

Last Modified

Sep 24, 2020

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases

9.12(3.9)

Description (partial)

Symptom:
Cisco ASA 5516 running in failover pair
Software version 9.12(3)9

The static routes on standby are seen correctly when checked in "show run route" or "show route".
However on checking "show asp table routing", we see it is not correctly updated on standby unit.

Output on standby is missing the default gateway :

15:33:30.485CNCCT-SECFIO101/sec/stby# show asp table routing management-only 

15:33:31.620out  0.0.0.0         0.0.0.0         via 0.0.0.0, identity
15:33:31.622out  ::              ::              via 0.0.0.0, identity

Here we should be seeing the default gateway

Conditions:
ASA running in HA

Failing over to standby unit causing traffic disruptions.
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