@Maholmire @dcc @pwm @p @emma

Is the VM on a Windows host? If the host OS Linux QEMU+KVM tends to be better option, and if using a Mac Parallels is a better option. Even if on Windows I'd use Hyper-V over Virtualbox, but Virtualbox also works fine if it's your hearts content.

The last time I used virtualbox, it wasn't difficult to set up bridging. This page seems to have more information:
https://www.virtualbox.org/manual/ch06.html