Glossary: Virtualization and Cloud Basics

CIDR block (Classless Inter-Domain Routing)

Also written: CIDR, CIDR blocks, /16, /24, /32, address range

An address range written as an address and a size, such as 10.0.0.0/16 for a whole VPC or 10.0.1.0/24 (256 addresses) for a subnet. A /32 means exactly one address.