Networking 在Vagrant VM上禁用internet（外部访问）

我正试图在Vagrant的帮助下使用本地计算机模拟生产环境。虚拟机不应该访问互联网

试图在VirtualBox设置上解除“连接电缆”的锁定，但我将无法通过SSH连接到VM，从而无法实现此目的

流浪汉档案：

config.vm.define "second" do |second|
  second.vm.box = "centos/7"
  second.vm.box_check_update = false
  second.vm.hostname = 'second'

  second.vm.network :private_network, ip: "111.111.11.111"

  second.vm.provider :virtualbox do |v|
    v.name = "second"
  end

  second.vm.synced_folder "/devdir", "/vagrant_data"
end

curl www.google.com  ## This should return error/ cannot found?

验证：

config.vm.define "second" do |second|
  second.vm.box = "centos/7"
  second.vm.box_check_update = false
  second.vm.hostname = 'second'

  second.vm.network :private_network, ip: "111.111.11.111"

  second.vm.provider :virtualbox do |v|
    v.name = "second"
  end

  second.vm.synced_folder "/devdir", "/vagrant_data"
end

curl www.google.com  ## This should return error/ cannot found?

提前谢谢大家