If you want to blacklist a specific IP, you can do that by throwing an unauthorized error when a user from that IP tries to log in.
Otherwise you can set your rule to look at a range of values. Checkout this SO topic on how to set that up:
If you want to blacklist a specific IP, you can do that by throwing an unauthorized error when a user from that IP tries to log in.
Otherwise you can set your rule to look at a range of values. Checkout this SO topic on how to set that up: