title: Vagrant: can not ping guest machine from the host
body: <p>I have Mac OS with installed vagrant. On guest machine I have Ubuntu 12. So, what I would like to do is ping guest machine from host.</p>
  
  <p>Guest machine attached to NAT (according to VirtualBox settings)</p>
  
  <p>I found only one interface on guest machine (except lo):</p>
  
  <pre><code>eth0      Link encap:Ethernet  HWaddr 08:00:27:88:0c:a6  
            inet addr:10.0.2.15  Bcast:10.0.2.255  Mask:255.255.255.0
            inet6 addr: fe80::a00:27ff:fe88:ca6/64 Scope:Link
            UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
            RX packets:581 errors:0 dropped:0 overruns:0 frame:0
            TX packets:410 errors:0 dropped:0 overruns:0 carrier:0
            collisions:0 txqueuelen:1000 
            RX bytes:61376 (61.3 KB)  TX bytes:51599 (51.5 KB)
  </code></pre>
  
  <p>The thing is that there is not ip address in 10.0.2.* network on the host. Host machine has several vboxnet interfaces, but they all don't have any ip addresses:</p>
  
  <pre><code>vboxnet0: flags=8842&lt;BROADCAST,RUNNING,SIMPLEX,MULTICAST&gt; mtu 1500
            ether 0a:00:27:00:00:00 
  vboxnet1: flags=8842&lt;BROADCAST,RUNNING,SIMPLEX,MULTICAST&gt; mtu 1500
            ether 0a:00:27:00:00:01 
  vboxnet2: flags=8842&lt;BROADCAST,RUNNING,SIMPLEX,MULTICAST&gt; mtu 1500
            ether 0a:00:27:00:00:02 
  vboxnet3: flags=8842&lt;BROADCAST,RUNNING,SIMPLEX,MULTICAST&gt; mtu 1500
            ether 0a:00:27:00:00:03 
  </code></pre>
  
  <p>Have you got any idea why ip address is not assigned to host machine by VirtualBox? What can I do to be able to ping gust machine?</p>
  
  <p>Here is my vagrant file (I removed some commented lines which I do not use):</p>
  
  <pre><code># -*- mode: ruby -*-
  # vi: set ft=ruby :
  
  # Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
  VAGRANTFILE_API_VERSION = "2"
  
  Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  # All Vagrant configuration is done here. The most common configuration
  # options are documented and commented below. For a complete reference,
  # please see the online documentation at vagrantup.com.
  
  # Every Vagrant virtual environment requires a box to build off of.
  config.vm.box = "hashicorp/precise64"
  
  # The url from where the 'config.vm.box' box will be fetched if it
  # doesn't already exist on the user's system.
  # config.vm.box_url = "http://domain.com/path/to/above.box"
  
  # Create a forwarded port mapping which allows access to a specific port
  # within the machine from a port on the host machine. In the example below,
  # accessing "localhost:8080" will access port 80 on the guest machine.
  config.vm.network "forwarded_port", guest: 80, host: 8080
  config.vm.network "forwarded_port", guest: 3306, host: 8086
  config.vm.network "forwarded_port", guest: 27017, host: 27017
  
  config.vm.synced_folder "/Users/KoulSlou/Documents/Cloudware12.10", "/vagrant", owner:     "www-data", group: "www-data"
  config.vm.synced_folder "/Users/KoulSlou/Documents/Cloudware/public","/cloudware", owner: "www-data", group: "www-data"
  
  # Create a private network, which allows host-only access to the machine
  # using a specific IP.
  #config.vm.network "private_network", ip: "192.168.1.2"
  
  # Create a public network, which generally matched to bridged network.
  # Bridged networks make the machine appear as another physical device on
  # your network.
  # config.vm.network "public_network"
  
  # If true, then any SSH connections made will enable agent forwarding.
  # Default value: false
  # config.ssh.forward_agent = true
  ...
  
  end
  </code></pre>