Bug ID 1125189: Adding or removing iRules from a virtual server with traffic matching criteria may cause that virtual server to stop passing traffic

Last Modified: Apr 11, 2024

Affected Product(s):
BIG-IP LTM, TMOS(all modules)

Known Affected Versions:
14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,,,, 14.1.5, 15.0.0, 15.0.1,,,,, 15.1.2,, 15.1.3,, 15.1.4,, 15.1.5,, 15.1.6, 16.0.0,, 16.0.1,,, 16.1.2,,, 16.1.3

Fixed In:

Opened: Jul 08, 2022

Severity: 2-Critical


When an iRule is added to or removed from a virtual server that contains a traffic matching criteria object, the virtual-address may be improperly removed from the config which will cause the virtual to stop passing traffic.


Virtual server may stop processing traffic


-- Traffic matching criteria in use. -- iRules are added or removed. Or: -- Traffic matching criteria in use. -- Update pool which associated the TMC virtual server.


Modify the virtual server again. Changing the description field in the GUI or tmsh is sufficient.

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips