Last Modified: Jun 19, 2025
Affected Product(s):
BIG-IP GTM
Known Affected Versions:
11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.5.4, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4
Opened: Dec 22, 2015 Severity: 3-Major
DNS64 feature is not fully RFC compliant and does not process PTR records.
Clients are unable to get correct responses to PTR lookups in the ip6.arpa domain for synthesized records.
When a client requests a reverse lookup of a AAAA that was synthesized by the BIG-IP from an original A record, we send out the unmodified PTR request to the internet
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