Bug ID 1078669: iRule command “RESOLVER::name_lookup” returns null for TCP resolver with TC (truncated) flag set.

Last Modified: Sep 13, 2023

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

Known Affected Versions:
15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1

Fixed In:
17.0.0, 16.1.3.1, 15.1.7

Opened: Feb 06, 2022

Severity: 3-Major

Symptoms

“RESOLVER::name_lookup” returns null for TCP resolver with TC set.

Impact

iRule command does not give any response but with TC set.

Conditions

Backend server returns very large DNS response.

Workaround

N/A

Fix Information

N/A

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips