How do you configure VLSM?

To configure Variable Length Subnet Masking (VLSM), you start by determining your network requirements, including the number of subnets and hosts needed for each subnet. Next, you allocate a larger subnet, then divide it into smaller subnets using different subnet masks based on the specific needs of each segment. Assign IP addresses accordingly, ensuring that each subnet has a unique network address and subnet mask. Finally, update routing protocols if necessary to accommodate the new subnets.