World IPv6 Day: Solving the IP Address Chicken-and-Egg Challenge

This post announces Facebook's participation in World IPv6 Day, a global 24-hour test flight for IPv6. It highlights the critical need for IPv6 due to IPv4 address exhaustion and the challenges of dual-stack connectivity for a small percentage of users. The post contrasts the long-term, end-to-end solution of IPv6 with the less desirable technical alternative of Large Scale NAT (LSN), emphasizing the importance of industry-wide testing and collaboration to ensure robust IPv6 products and reliable dual-stack websites.