An IP address is a unique identifier that defines the location of a computer on the Internet. It also includes information about the service provider and the location of the server. IP addresses are 32-bit addresses composed of four separate numbers from 1 to 255, separated by dots (.).
Since most users find it easier to remember names than to remember numbers, every IP address is mapped to a special host name.
Any address starting with http:// or ftp:// is simply a masked IP address. WISE-FTP accepts IP addresses as well as host names.