Tom Coffeen is a network engineer, architect, and author with over twenty years of internetwork design, deployment, administration, and management experience. Tom co-founded HexaBuild, an IT consultancy specializing in the advancement of cloud, IoT, and security deployment best practices through IPv6 adoption. Prior to co-founding HexaBuild, Tom was an IPv6 Evangelist and a Distinguished Architect at Infoblox. Before that Tom was the VP of network architecture at the global CDN Limelight Networks where he led their deployment of IPv6. He is also the author of O’Reilly Media’s IPv6 Address Planning.