title: Where is NodeMCU getting ip address from?
body: <p>With a blank <code>init.lua</code>, whenever I reboot the <code>NodeMCU</code>:</p>
  
  <pre>
  =wifi.sta.getip()
  192.168.1.108   255.255.255.0   192.168.1.1
  </pre>
  
  <p>Where is it getting this <code>192.168.1.108</code>? <br>At one time a couple of weeks ago, I was testing the <code>wifi</code> module. <br>When it connected it was with this ip.</p>
  
  <p>How can that info be hanging around?<br> Or<br> is this some sort of internal ip that <code>NodeMCU</code> uses?</p>