Bug ID 561859: Occasional Rapid Response Crash

Last Modified: Oct 06, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP GTM, LTM(all modules)

Known Affected Versions:
12.0.0, 12.0.0 HF1, 12.0.0 HF2

Fixed In:
12.1.0, 12.0.0 HF3

Opened: Dec 08, 2015
Severity: 3-Major


DNS Rapid Response can occasionally crash.


TMM crashes


Running UDP listener with Rapid Response enabled in DNS profile and a default action of Drop.


Change default action to Allow, at the risk of slowdown.

Fix Information

Dropped packets no longer cause an occasional crash.

Behavior Change