IPv6 What is IPv6? IPv6, or Internet Protocol version 6, is the successor to IPv4, providing an expanded address space to accommodate the growing number of devices connected to the internet. Explanation IPv6 uses 128-bit addresses, allowing for an almost unlimited number of unique addresses. It also offers enhanced security, efficiency, and performance compared to IPv4. Practical Example of IPv6 A modern IoT network uses IPv6 to assign unique addresses to thousands of connected devices, ensuring scalability and reliable communication.