VLSM and Supernetting: Advanced Subnetting Techniques
TL;DR — The Short Version VLSM (Variable Length Subnet Mask) divides a network into subnets of different sizes. Each subnet matches its real host count. Fixed-length subnetting (FLSM) wastes addresses by forcing every subnet to the same size. Supernetting (route aggregation) is the reverse. It combines contiguous networks into one larger block to shrink routing … Read more