Local Traffic Policy: How to reject / reset connections in 11.4.1

Hi - I would be grateful for guidance with regard to the following requirement.

 

The following concerns using a Local Traffic Policy

 

I will simplify what I am after in order to draw out the issue.

 

In English, the requirement is to reject any connections satisfying the following conditions:-

 

1) HTTP Header is not ("A","B" or "C") and 2) HTTP URI begins with /DEF

 

Within 12.1.2, I understand that the Policy rule would be of the form:- Conditions:-

 

HTTP Header named "blah" is not any of (A,B,C) HTTP URI extension begins with /DEF

 

Action:- Reset Traffic

 

Is there an equivalent for BIG-IP LTM 11.4.0?

 

In short, I am unable to identify an equivalent action to Reset Traffic

 

Much appreciated

 

Alex