ConceptsCIDR Notation

CIDR Notation

A compact way to write an IP address range and its network size, such as 192.168.1.0/24, where the number after the slash says how many leading bits define the network. It replaced rigid address classes with flexible subnetting.

Glossary definition

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Concept Neighborhood

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IP Addresses

The foundation CIDR Notation builds on, worth understanding first.

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IP AddressesStart here

Numeric labels assigned to devices on a network that identify them and enable routing of traffic to and from them. They are fundamental to networking and a key data point in detection, investigation, and access control.

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IPv4

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IPv6

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Network

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Subnet

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Private Address Space

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