Comhroinn Fuaime

Subnetting Subnetting is the process of dividing a larger network into smaller, manageable subnets to improve performance and security. By calculating network, broadcast, and host ranges, you can determine which addresses are usable within each subnet. CIDR notation (e.g., /24) simplifies subnetting representation, while Variable Length Subnet Masks (VLSM) allow subnets of different sizes within the same network to optimize IP usage. Mastery of subnetting ensures efficient IP allocation, minimi