Windows Server 2012 with Remote Desktop (RDP) + Vagrant + Virtualbox

Vagrantfile

# -*- mode: ruby -*-
# vi: set ft=ruby :
VAGRANTFILE_API_VERSION = "2"

VM_BOX="mwrock/Windows2012R2"

# IP address Information
STATICIP="x.x.x.x"
SUBNETMASK="y.y.y.y"
ROUTER="z.z.z.z"

# Vagrant will need 2 interfaces, one for NAT (needed for provision) and one for static public IP
STATICIP_INTERFACE="Ethernet 2"
NAT_INTERFACE="Ethernet"

# Remote RDP Port
GUEST_RDP_PORT="3389"
REMOTE_RDP_PORT="33389"
AUTO_CORRECT="true"

# WinRM Credentials (not for setting Windows password!)
WINRM_USER="vagrant"
WINRM_PASSWORD="vagrant"

# Memory and CPUs
MEMORYMB=4096
CPUS=2

def gui_enabled?
  !ENV.fetch('GUI', '').empty?
end

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|

  config.vm.provision "Gateway", type: "shell", run: "always", inline: <<-POWERSHELL
    New-NetRoute -InterfaceAlias "#{STATICIP_INTERFACE}" -NextHop "#{ROUTER}" -DestinationPrefix "0.0.0.0/0"
    Set-NetIPInterface -InterfaceAlias "#{NAT_INTERFACE}" -InterfaceMetric 5000
    Set-NetIPInterface -InterfaceAlias "#{STATICIP_INTERFACE}" -InterfaceMetric 1
  POWERSHELL

  config.vm.network "public_network", bridge: "eth0", ip: STATICIP, netmask: SUBNETMASK
  config.vm.network :forwarded_port, guest: GUEST_RDP_PORT, host: REMOTE_RDP_PORT, auto_correct: AUTO_CORRECT
  config.vm.box = VM_BOX
  # Change "." to a local folder you want to sync
  # config.vm.synced_folder ".", "/chocolateypackages", disabled: true
  config.vm.guest = :windows
  config.vm.communicator = "winrm"
  config.winrm.username = WINRM_USER
  config.winrm.password = WINRM_PASSWORD
  config.vm.provider 'virtualbox' do |v|
    v.gui = gui_enabled?
    v.memory = MEMORYMB
    v.cpus = CPUS
  end
end

just do

vagrant up

viola! You have a Windows Server 2012 with RDP access! 👍