Bug ID 723194: In-tmm monitors support only basic authentication

Last Modified: Jul 23, 2021

Bug Tracker

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

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,, 15.0.0, 15.0.1,,,,, 15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 16.0.0,, 16.0.1,,, 16.1.0

Opened: Jun 06, 2018
Severity: 3-Major


In-tmm HTTP monitors work only with basic authentication, and they fail if they are configured to use NTLM authentication.


The monitor marks the pool member as down.


-- In-TMM monitors enabled (i.e., the bigd.tmm DB key is set to enable). -- An HTTP monitor is configured to use NTLM authentication.


You can use either of the following workarounds: -- Disable in-TMM monitoring (set bigd.tmm DB key to disable). -- Create an external monitor that performs the check against servers requiring NTLM authentication.

Fix Information


Behavior Change