IPv4 Addressing Explained: Classes, Ranges, and How It All Works
Learn how IPv4 addresses are structured, what address classes mean, the difference between public and private IPs, and...
Read MoreXV4 is your comprehensive resource for understanding IPv4 and IPv6 networking, internet protocols, IP address management, and the global transition to next-generation networking infrastructure. Explore in-depth guides, comparisons, and how-tos for network professionals and enthusiasts.
Everything you need — all in one place.
In-depth articles and guides written by knowledgeable contributors covering every aspect of the topic.
Actionable advice you can apply right away, from beginner fundamentals to advanced strategies.
Whether you are just starting out or a seasoned expert, find content tailored to your experience level.
Fresh content published regularly so you always have the latest information and techniques at your fingertips.
Our newest content — updated regularly.
Learn how IPv4 addresses are structured, what address classes mean, the difference between public and private IPs, and...
Read MoreA practical, step-by-step guide to migrating your network from IPv4 to IPv6, covering dual-stack, tunneling, NAT64, and...
Read MoreMaster IPv4 subnetting with clear examples, VLSM explained, a quick-reference table of subnet sizes, and real-world...
Read MoreDiscover best practices for IP address management (IPAM), including hierarchical addressing, DHCP reservations, DDI...
Read MoreLearn about the key security threats unique to IPv6 networks — from rogue Router Advertisements to NDP spoofing —...
Read MoreA comprehensive comparison of IPv4 and IPv6 covering address space, header structure, autoconfiguration, broadcast vs....
Read MoreDive deep into the topics that interest you most.
Core concepts, addressing, subnetting, and everything you need to know about IPv4...
ExploreGuides and explainers on migrating from IPv4 to IPv6, dual-stack deployments, and...
ExplorePractical how-to guides for configuring, troubleshooting, and optimizing network...
ExploreBest practices for IPAM, DHCP, DNS, CIDR notation, and managing IP address space...
ExploreNetwork security fundamentals, routing protocols, firewalls, and protecting IP-based...
Explore
Get the latest articles, tips, and insights delivered straight to your inbox. Join our community today.