Bug ID 427101: peer/clientside/serverside iRule commands do not work properly with FastL4

Last Modified: Jul 12, 2023

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

Opened: Aug 05, 2013

Severity: 2-Critical


iRules using this command will report an error that there is "no peer connection established" incorrectly.


Affected iRules will not complete due to the error. This will result in the connection being reset (traffic will not flow).


An iRule uses [peer], [clientside], or [serverside] on a virtual server configured with FastL4 processing.


Communicate the information between connection sides with shared variables if possible.

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips