Setting maximum request size?

Hi,

 

I am wondering if it is possible to set a maximum request size (headers + body) per Virtual Server / Policy? For example, I want any request larger than 1MB to a given Virtual Server to be blocked. I assume it can be done with an iRule, but I figured there may also be a way to do it from the GUI.

 

I tried adding a wildcard file type with low thresholds, but it doesn't seem to work (I am using SoapUI to send a 1MB request, which passes through successfully).

 

 

Is there a different setting somewhere that I should be using?

 

Thanks, Dan