There have been so many discussions surrounding disabling of IPv6. I have listed below some useful sites that discusses why IPv6 should be enabled: – The Cable Guy – Microsoft FAQ For the purpose of this lab, I will show you how to disable IPv6 LAN Interfaces and Tunnel Interfaces. Disable IPv6 on LAN Interfaces: 1. Click on Start - Network 2. Click Network and Sharing Center 3. Click Change adapter settings 4.