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Cisco Bug: CSCvt26031 - ASAv Unable to register smart licensing with IPv6

Last Modified

Sep 17, 2020

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases

9.9(2)

Description (partial)

Symptom:
ASA firewall configured with IPv6 unable to reach IPv6 FQNDs but can ping the respective IPv6 from ASA.

As for example, because of this defect an ASA configured with IPv6 only interfaces, is unable to communicate with tools.cisco.com and register/acquire licensing:


1. When pinging tools.cisco.com:



If you enable "debug dns" the following is displayed:



2. When pinging the resolved IPv6 address for tools.cisco.com:

Conditions:
> ASA configured with IPv6 interfaces
> ASA performing IPv6 DNS queries
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
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