Bug ID 563687: [DNS] dns64 behavior does not comply with RFC about how to treat RCODEs other than 'NO ERROR'

Last Modified: May 29, 2024

Affected Product(s):
BIG-IP GTM(all modules)

Known Affected Versions:
11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.1.0

Opened: Dec 17, 2015

Severity: 3-Major

Related Article: K10751444

Symptoms

GTM/BIG-IP DNS forwards AAAA response with and RCODE other than 3 to the client, instead of sending an A query to the server.

Impact

The client application fails even there is an A GTM/BIG-IP DNS server available.

Conditions

dns64 profile configured.

Workaround

None.

Fix Information

GTM/BIG-IP DNS sends an A query to the server if it receives AAAA responses with an RCODE other than 3.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips