Bug ID 466745: Cannot set the value of a session variable with a leading hyphen.

Last Modified: Apr 10, 2019

Bug Tracker

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

Known Affected Versions:
11.0.0, 11.1.0, 11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5

Fixed In:
12.0.0, 11.6.0 HF6, 11.5.3 HF2, 11.4.1 HF9

Opened: Jun 11, 2014
Severity: 3-Major
Related AskF5 Article:


Cannot set the value of an ACCESS::session variable with a leading hyphen.


Cannot use hyphen in session variable value. The system posts and error message similar to the following: err tmm3[12741]: 01220001:3: TCL error: /Common/pass <ACCESS_POLICY_AGENT_EVENT> - bad option name (line 1)setting variable var_name for sid (null) failed (line 1)Illegal argument (line 1) (line 1) invoked from within "ACCESS::session data set var_name "-foo""


Using a leading hyphen for the value of the session variable, for example: ACCESS::session set data var_name -value.


This issue has no workaround at this time.

Fix Information

In this release, an extra parameter, made up of two dashes (--), was added. When -- is inserted before a value, the value can start with a hyphen; for example, "ACCESS::session set data var_name -- -value".

Behavior Change