IP Subnetting Tutorial for Beginners

Subnetting is a fundamental concept in computer networking. This tutorial will walk you through the basics of IP addresses, subnet masks, and how to calculate subnets.

What is an IP Address?

An IP address is a unique identifier for a device on a network. It consists of four octets (e.g., 192.168.1.1).

What is Subnetting?

Subnetting divides a network into smaller, more manageable pieces. It helps improve network performance and security.

CIDR Notation

CIDR (Classless Inter-Domain Routing) is a method for allocating IP addresses and routing. Example: 192.168.1.0/24

Practice

Try our IP Calculator to experiment with subnetting and CIDR calculations!