Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

N__197982's avatar
N__197982
Icon for Nimbostratus rankNimbostratus
Nov 08, 2017

iRule LX feature

Guys, how do I get the iRule LX feature? I went through some videos and found that it needs to be enabled in the "Resource Provisioning". However, the option to enable is not there. Is it an addition...
application delivery
iRulesLX
Algebraic_Mirror's avatar
Algebraic_Mirror
Icon for Cirrostratus rankCirrostratus
Nov 10, 2017

You need to have TMOS 12.1 above. You don't have to purchase extra licensing, but if you have an older license file (such as from a previous version of Big-IP), you may need to re-active your license (under System -> License) to make sure that the part enabling iRulesLX is in your license file.

 

Also, you will need to provision iRulesLX (System -> Resource Provisioning). Even if licensed, it will not show up in any of the menus until you do that.