IPv4 Tutorial

Understanding IPv4 (Internet Protocol version 4) is essential for anyone working in the field of networking. IPv4 is the fourth version of the Internet Protocol, which is the principal communications protocol in the Internet protocol suite for relaying datagrams across network boundaries. It uses a 32-bit address scheme allowing for a total of 2^32 addresses, which is approximately 4.3 billion unique addresses.

IPv4 addresses are typically shown in dotted decimal notation, where each of the four octets is represented by a decimal number in the range from 0 to 255, separated by periods. For example, 192.168.1.1 is a common IPv4 address used in local networks.

As the foundation of modern internet communication, understanding how IPv4 addresses are assigned, subnetted, and routed is crucial. This knowledge is particularly important for individuals pursuing networking certifications like CCNA, where a solid grasp of IPv4 concepts is required.

This IPv4 tutorial covers topics such as IPv4 addressing, subnetting, classes, public and private IP addresses, and IPv4 header structure. Whether you are new to networking or looking to deepen your understanding of IPv4, this tutorial provides a comprehensive overview of the key concepts.

By the end of this tutorial, you will have a strong foundation in IPv4, enabling you to configure network devices, troubleshoot