Automatic Black List

Hi,

I want to create an automatic rule for blocking attacks.
I mean, if an IP trying to connect with wrong Password, for 5 time in 20 second, that IP will automatically banned.
Where is this settings, or I should create a script? (How)

Regards,

This will help:
http://wiki.mikrotik.com/wiki/Bruteforce_login_prevention

10x