IP scanning is a process used to identify active devices on a network by sending requests to a range of IP addresses. It helps network administrators discover which devices are connected, their status, and any potential security vulnerabilities. This technique is essential for maintaining network health and security. There are various tools available for IP scanning, such as Nmap and Angry IP Scanner. These tools can quickly scan large networks, providing information about open ports and services running on each device. By understanding the network landscape, administrators can better manage resources and protect against unauthorized access.