Bug ID 539687: No logs for Proactive Bot Defense drops.

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.6.0, 11.6.1, 11.6.2, 11.6.3,,,,, 11.6.4, 11.6.5,,,, 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, 12.1.2 HF1, 12.1.2 HF2

Fixed In:

Opened: Aug 13, 2015

Severity: 3-Major


A RST happens upon a request. There are no loggings or indication regarding this reset.


A connection terminates. The logging absence causes confusion.


The VS has application dos attached with the proactive bot defense turned on.



Fix Information

We added the internal parameter, proactive_defense_log_dropped_requests, that when enabled, logs the drops from the proactive bot defense into the tmm log.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips