Bug ID 633110: Literal tab character in monitor send/receive string causes config load failure, unknown property

Last Modified: Sep 14, 2023

Affected Product(s):
BIG-IP TMOS(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, 12.1.0, 12.1.1, 12.1.2, 12.1.3,,,,,,,, 12.1.4,, 12.1.5,,,, 12.1.6, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 13.1.5,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,,,, 14.1.5,,,,,

Opened: Dec 12, 2016

Severity: 3-Major

Related Article: K09293022


BIG-IP allows you to paste in monitor send or receive strings that contains tabs, but the tabs do not get quoted when it gets saved to the configuration. This will cause the configuration load to fail, with this error signature: Loading configuration... /config/bigip_base.conf /config/bigip_user.conf /config/bigip.conf Syntax Error:(/config/bigip.conf at line: <line>) "<text>" unknown property


The monitor will not work as expected, and subsequent config loads will fail on unknown property.


This can occur if you copy/paste a monitor send or receive string and paste it into the send/recv string field in tmsh or the GUI.


Since you are still able to use the BIG-IP GUI, you can update the monitor send or receive string using \t to represent the tab, and save the changes.

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips