Last Modified: Sep 13, 2023
Affected Product(s):
BIG-IP DNS, GTM
Known Affected Versions:
11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.1 HF10, 11.5.1 HF11, 11.5.2 HF1, 11.5.3 HF1, 11.5.3 HF2, 11.5.4 HF1, 11.5.4 HF2, 11.4.1, 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
Fixed In:
13.0.0, 12.1.2 HF1, 11.6.1 HF2, 11.5.4 HF3
Opened: Apr 15, 2016 Severity: 3-Major Related Article:
K77283304
LTM FastL4 DNS virtual server or SNAT: first A query dropped when A and AAAA requested at the same time with same source IP:port.
A Type DNS Query dropped intermittently.
A and AAAA DNS Query requested at the same time with the same source IP and Port.
Configure a standard virtual server with a UDP profile for the traffic instead of using FastL4 or SNAT.
Type A requests no longer dropped when A and AAAA DNS Query requested at the same time with the same source IP and Port.