IP Addressing & Subnetting

Summary

How devices are uniquely identified on a network, and how subnetting divides a larger network into smaller, manageable segments — essential for designing a cloud VPC's address space correctly from day one.

• 1Practice calculating a subnet's usable IP range given a CIDR notation (e.g. /24).
• 2Learn the difference between public and private IP address ranges.
• 3Use a subnet calculator to check your manual calculations until it's second nature.