title: How to specify a network interface when making net requests from Node.js?
body: <p>In either <code>http.request</code> or <code>net.connect</code>, is there an option that I can specify a network interface to initiate a connection?</p>
  
  <p>EDIT: AFAIK in OS level I can specify address level, or load balancing into routing tables. But the way of interface choosing in my software is more than that, I wanna know if I can do that in codes.</p>