Explore Microsoft IT's secure journey to IPv6-only in this comprehensive conference talk. Gain insights into the company's network overview, including four regions with smaller campuses and branch offices. Examine the history of dual stack implementation and the resulting IPv6 vs IPv4 traffic distribution, with 34% of corporate network traffic being IPv6. Discover the drivers behind Microsoft's push for IPv6-only, including industry pressure and product group requirements. Learn about the challenges and considerations for implementing IPv6-only in wireless guest networks, development test networks, and remote access VPNs. Delve into IPv6 security aspects, including cloud security solutions committed to delivering IPv6 support. Conclude with valuable lessons learned from Microsoft's experience in transitioning to IPv6-only infrastructure.