An IP Scanner is a tool used to discover devices connected to a network. It scans a range of IP addresses to identify active devices, providing information such as their IP address, MAC address, and device type. This is useful for network administrators to manage and monitor network resources effectively. These scanners can be software applications or hardware devices. They help in identifying unauthorized devices, troubleshooting network issues, and ensuring network security. Popular examples of IP scanners include Angry IP Scanner and Advanced IP Scanner, which are widely used for both personal and professional networking tasks.