We will cover on how the DEF CON network team builds a network from scratch, in three days with very little budget. How this network evolved, what worked for us, and what didn't work over the last ten years. This network started as an idea, and after acquiring some kick butt hardware, has allowed us to support several thousand users concurrently. In addition I will cover the new WPA2 enterprise deployment, what worked, and what didn't, and how the DEF CON team is has mad the Rio network rock!