mitchellh/vagrant — pull request #1945 by znz (2013-07-18 06:08:14+00:00)
Title: pass guest_ip option from config to driver [GH-1121]

plugins/providers/virtualbox/driver/ now see guestip option.
but plugins/providers/virtualbox/action/forward_ports.rb and plugins/providers/virtualbox/model/forwarded_port.rb do not pass guest_ip option from config to driver.