I setup various vm's (CentOS 6.5, RHEL 7, Windows 8) while working on the standalone MacBook Pro with bridged networking on the wireless controller:
As soon as I connect the Cinema Display (Thunderbolt), all the VMs with bridged networking, have their networking broken. There is no other networking (such as hard wired, etc.) connected to the Mac nor Cinema Display. The only way I can get networking within the VM's while I am connected to the display is through "Shared with my Mac".
15-inch MacBook Pro, Retina, Late 2013, 2.6GHz i7, 16GB Memory