mitchellh/vagrant — pull request #982 by RLasinski (2012-06-18 10:59:27+00:00)
Title: Support for internal network adapter

Because of restrictions i can not use bridged oder host-only networks.
Generally we are using NAT. As second adapter we use internal network to ensure the communication between virtual machines.

I added support for this adapter.

config.vm.network :intnet, "192.168.1.2", :adapter => 2