Tagged: cidr

What Is CIDR? A Complete Guide to Classless Inter-Domain Routing

CIDR notation packs an IP address and its network size into one compact string. Here's exactly what it means and how to read it.

Understanding IPv4 Subnetting: A Practical Guide

Subnetting is how one IP range gets divided into smaller, purpose-built networks. Here's a practical walkthrough with real examples.

CIDR vs. Subnet Mask: What's the Difference?

A /24 and 255.255.255.0 mean the same thing. Here's how CIDR notation and subnet masks map to each other.

CIDR Notation Explained: How /24, /16 and /8 Networks Work

The number after the slash determines everything about a network's size. Here's exactly how to read it.

How to Calculate the Number of IP Addresses in a CIDR Block

One formula answers this for any prefix length. Here's the formula, plus worked examples for the sizes you'll actually use.

CIDR Calculator Guide: Find Network, Broadcast and Usable IP Addresses

Here's exactly what a CIDR calculator computes, walked through with three real address blocks.

What Does /32 Mean in CIDR?

A /32 is the smallest possible CIDR block - exactly one address, with no network or broadcast concept at all.