IPv6 Address Types Explained: Why One Device Has So Many
IPv6 gives every device several addresses at once, not one. Learn what link-local, global unicast, unique local, and multicast addresses do, and why privacy extensions rotate one every day.
IPv6
Port Forwarding Explained: How NAT Routes Traffic to Your Devices
Port forwarding routes incoming internet traffic to one device on your network. Learn how NAT and CGNAT affect it, how to set it up safely, and why it sometimes fails.
What Is ARP (Address Resolution Protocol)? How It Works
ARP quietly resolves every IP address on your network into a MAC address, but most guides skip how it actually works. See the request-reply cycle, your ARP table, and the spoofing risk in one place.
Does a VPN Hide Your IP Address?
Does a VPN hide your IP address? Yes — but DNS, WebRTC, and IPv6 leaks can expose it. Learn what a VPN hides, how to test it, and how to stop leaks.
IPv4 vs. IPv6: Address Exhaustion and the Path Forward
Understand the IPv4 vs IPv6 differences with a 2026 perspective. Learn why IPv4 ran out, how IPv6 solves it, and what the March 2026 majority milestone on Google means for your network.