Fast proxies offer you a new feature – IP authorization.
IP authorization doesn't require any logins and passwords to establish connection – all you need is to add your devices’ IP to the IP Whitelist and set up all other settings (geo-targeting, server and port). This type is simpler for users, who basically work within 1 location at time. The only limitation you have by using this authorization type is that you can attach 1 IP to the 1 filter. So if you need multiple connections to different locations, you need to have multiple unique IPs, one to every single filter.
NOTICE: if you use IP authorization, you can create only one filter with your IP address! If you want to change your target location and use the same IP address, you need to delete the filter, where your IP address is already being used, and create another one!