title: How to set up gateway of public network in vagrant
body: <p>I am setting up my Virtualbox Centos VM with vagrant. I am setting up with a public network.</p>
  
  <pre><code>config.vm.network :public_network, ip: "10.135.15.137"
  </code></pre>
  
  <p>How do I setup the GATEWAY along with this?</p>