Bug ID 476683: Suspended DNS_RESPONSE events are not resumed

Last Modified: Aug 19, 2026

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

Known Affected Versions:
11.5.1, 11.5.1 hf1, 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, 11.6.0, 11.6.0 hf1, 11.6.0 hf2, 11.6.0 hf3, 11.6.0 hf4, 11.6.0 hf5, 11.6.0 hf6, 11.6.0 hf7, 11.6.0 hf8, 11.6.1, 11.6.1 hf1, 11.6.1 hf2, 11.6.2, 11.6.2 hf1, 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

Fixed In:
12.0.0, 11.5.2

Opened: Aug 25, 2014

Severity: 2-Critical

Related Article: K16037

Symptoms

iRules that cause the DNS_RESPONSE event to suspend will not be resumed.

Impact

DNS_RESPONSE event does not complete execution.

Conditions

DNS_RESPONSE event with command that causes it to be suspended.

Workaround

Do not use iRule commands in DNS_RESPONSE event that result in suspension.

Fix Information

DNS_RESPONSE events are now resumed after suspension.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips