This page consists of screenshots from the Advance Security – Blocking Options Screen in Captcha Booster WordPress Plugin.
This page has the settings to configure Auto IP Block and its settings. If enabled, it will automatically block an IP Address if it exceeds its maximum login attempts.
You can also customize the number of Maximum Login Attempts allowed to users in a day. You can also choose time duration to block an IP Address so that particular IP Address will be blocked for a fixed time as per your settings.