title: How do I create a docker machine with a specific URL using docker-machine and VirtualBox?
body: <p>I can create a Docker instance with the VirtualBox driver, but I cannot figure out how to specify the URL. </p>
  
  <p><strong>Create Command:</strong></p>
  
  <pre><code>docker-machine create --driver virtualbox myBox
  </code></pre>
  
  <p><strong>docker-machine ls:</strong></p>
  
  <pre><code>NAME      ACTIVE   DRIVER       STATE     URL                         SWARM
  myBox     *        virtualbox   Running   tcp://192.168.99.100:2376   
  </code></pre>
  
  <p>I want the URL to be a specific URL. How can I force the Docker instance to use a specific URL (ex: 192.168.99.113)?</p>
  
  <p><strong><em>Details:</strong> Mac 10.10.5 using Docker Toolbox</em></p>
  
  <h2>Update</h2>
  
  <p>I tried using the <code>--virtualbox-hostonly-cidr</code> command to set the IP range for the docker machine; I specified a range of one IP address ("192.168.99.113/32"), but the machine created had an IP of 192.168.99.100, which is outside of the range I provided.</p>
  
  <p>Is it even possible to set a docker machine with specific IP address?</p>