Tag: CIDR notation

Classful vs. Classless IP Addressing
CCNA April 19, 2025

Classful vs. Classless IP Addressing: A Deep Dive into Networking Evolution

IP addressing is the backbone of modern networking, enabling devices to communicate across local networks and the internet. Every device—whether a smartphone, server, or IoT sensor—requires a unique IP address to send and receive data. However, the original IP addressing system ( classful addressing ) struggled to scale with the internet’s explosive growth. This led […]
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A switch with various network cables tangled on a wooden surface for Subnetting, branded with the NetworkUstad logo
CCNA July 15, 2019

Subnetting Unveiled: Master the Art of Network Segmentation 2025

Subnetting allows a network administrator to create a smaller network known as sub-networks or subnets inside a large network by borrowing bits from the Host ID portion of the address. It implements and manages a practical IP addressing plan by partitioning a single physical network into more than one smaller logical sub-network (subnets), enhancing control […]
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