# Install virtualbox

    sudo su
    echo "deb http://download.virtualbox.org/virtualbox/debian trusty contrib" >> /etc/apt/sources.list
    wget -q https://www.virtualbox.org/download/oracle_vbox.asc -O- | apt-key add -
    apt-get update && apt-get install -y virtualbox-4.3 dkms

# Config Vagrantfile

    mkdir ~/vagrant/vb
    cd ~/vagrant/vb
    vim Vagrantfile

## Sample Vagrantfile

    # -*- mode: ruby -*-
    # vi: set ft=ruby :
    VAGRANTFILE_API_VERSION = "2"
    Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
      config.vm.box     = "ubuntu/trusty64"

      config.vm.define :control do |controller|
        controller.vm.hostname = "controller"
        controller.vm.provider "virtualbox" do |vb|
          vb.customize ["modifyvm", :id, "--memory", "2048"]
        end
        controller.vm.network :private_network, ip: '192.0.2.24', virtualbox__intnet: "intnet"
        controller.vm.network :private_network, ip: '192.168.99.24', virtualbox__intnet: "extnet"

      end
      config.vm.define :network do |network|
        network.vm.hostname = "network"
        network.vm.provider "virtualbox" do |vb|
          vb.customize ["modifyvm", :id,
                        "--memory", "1024",
                        "--nicpromisc1", "allow-all",
                        "--nicpromisc2", "allow-all",
                        "--nicpromisc3", "allow-all",
                      ]
        end
        network.vm.network :private_network, ip: '192.0.2.25', virtualbox__intnet: "intnet"
        network.vm.network :private_network, ip: '192.168.99.25', virtualbox__intnet: "extnet"
        network.vm.network :public_network
      end
    end