I understand that forcing such a switch is not mandatory, but optional switch is sufficient for my needs. I want to make a module that prevents attacks. During a peak I want to ask client kindly to switch to TCP (ip is now limited) so a normal client can still use the DNS unblocked. If request is ignored and attack continues
(ip becomes blocked) I want to drop all incoming requests as soon as possible. After a while a state change from blocked to limited would occur, and after few more moents it would go back to normal.