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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


Description (partial)

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 and register/acquire licensing:

1. When pinging

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

2. When pinging the resolved IPv6 address for

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

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