Bug ID 630257: Monitor send/receive strings cannot end with trailing single-backslash

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP Install/Upgrade, TMOS(all modules)

Known Affected Versions:
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

Opened: Nov 24, 2016

Severity: 3-Major


A monitor with a 'send' or 'receive' string is not supported with a single trailing backslash, such as "GET /\r\n\" (note the single-trailing backslash that "escapes" the trailing double-quotes).


When configuration is saved and then loaded, the single-trailing backslash will escape the trailing double-quotes and the configuration will fail to load.


A monitor 'send' or 'receive' string ends with a single trailing backslash; and the configuration is saved, and then a load is attempted.


A double-trailing backslash is supported, where the trailing double-quotes will not be escaped, for example: "GET /\\r\\n"

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips