CIDR Notation

CIDR notation is a way to specify IP addresses and their network sizes efficiently. It combines an IP address with a slash and a number (e.g., 192.168.1.0/24). The number indicates how many bits are used for the network portion of the address, defining the size of the subnet. This helps network administrators easily identify the range of addresses within a network and manage address allocation more flexibly than traditional methods. Essentially, CIDR notation streamlines the representation of IP ranges, making networks easier to organize, expand, and route.