# File lib/vagrant-libvirt/action/prepare_nfs_settings.rb, line 42
        def read_host_ip(ip)
          UDPSocket.open do |s|
            if ip.is_a?(Array)
              s.connect(ip.last, 1)
            else
              s.connect(ip, 1)
            end
            s.addr.last
          end
        end