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Struggling to make sense of subnet masks in IPv4? You’re not alone. Many beginners and even professionals find breaking down binary math and CIDR notations confusing. The problem often lies in not understanding how IP classes, host bits, and subnetting formulas work together. Without this clarity, setting up networks becomes prone to errors and inefficiencies. But the solution is simpler than it seems. In this blog, we’ll walk you through how to calculate the subnet mask in IPv4 with easy steps, examples, and tips to master it confidently. What is IPv4? IPv4, or Internet Protocol version 4, is the most widely used protocol for assigning unique addresses to devices on a network. It uses a 32-bit numeric system, creating over 4 billion possible addresses. Written in a dotted decimal format like 172.16.254.1 , IPv4 enables devices to locate and communicate with each other across networks and the internet. What is a Subnet? A subnet is just a smaller part of a larger network. Think of it l...

Are we running out of Internet addresses? Absolutely! The traditional IPv4 system can’t keep up with today’s ferocious digital growth. That’s where IPv6 Addressing comes in. It solves the problem of address exhaustion by offering an almost limitless number of unique IP addresses, along with better routing, enhanced security, and improved scalability. Whether you're a home user or a network pro, IPv6 is the key to future-proof connectivity. What is IPv6 Addressing? IPv6 Addressing refers to the latest version of the Internet Protocol (IP) used to identify devices on a network. It stands for Internet Protocol version 6 and was developed to replace IPv4, which had a limited number of unique addresses. Every device connected to the internet—smartphones, computers, smart TVs, IoT devices—needs a unique IP address to communicate. With billions of new devices connecting every year, the need for more addresses became urgent. IPv4, the older protocol, operates with 32-bit addresses, offerin...