网络配置

我这是nat和host-only 两个模式都有的，所以虚拟机之间可以互相访问，而且虚拟机也都可以直接访问宿主机的网络，完美

已经被这个网络配置折腾了一段时间了 ，终于解决了！！！

配置

Vagrant.configure("2") do |config|
  
  config.vm.define "vagrant1" do |vb|
      config.vm.provider "virtualbox" do |v|
      v.memory = 1024
      v.cpus = 1
    end
  vb.vm.host_name = "vagrant1"
  vb.vm.network :private_network, ip: "192.168.1.21"
  vb.vm.box = "bento/ubuntu-20.04"
  
  end

  config.vm.define "vagrant2" do |vb|
      config.vm.provider "virtualbox" do |v|
      v.memory = 1024
      v.cpus = 1
    end
  vb.vm.host_name = "vagrant2"
  vb.vm.network :private_network, ip: "192.168.1.22"
  vb.vm.box = "bento/ubuntu-20.04"
  end

  config.vm.define "vagrant3" do |vb|
      config.vm.provider "virtualbox" do |v|
      v.memory = 1024
      v.cpus = 1
    end
  vb.vm.host_name = "vagrant3"
  vb.vm.network :private_network, ip: "192.168.1.23"
  vb.vm.box = "bento/ubuntu-20.04"
  end
end