title: qt dual-stack ipv4 & ipv6 application
body: <p>I have a ipv4 client/server network application written in Qt (v4), which i have to port it in ipv6 (actually the client porting is the most important one), creating in this way a dual-stack ipv4 &amp; ipv6 application.</p>
  
  <p>i do not have any ipv6 network available so as to perform any tests.</p>
  
  <p>i tried the following but with no success:</p>
  
  <ul>
  <li>find a tool that make ipv6 validation: there are not many, usually poorly documented and usually for C language</li>
  <li>create a local ipv6 network environment</li>
  </ul>
  
  <p>any ideas?</p>