title: RTNETLINK answers: Operation not supported
body: <p>In fact, I want to use pipework to add an ipoib interface into docker container.
  Pipework use ip command to do this. But when running the command...</p>
  <pre><code>ip link add link ib0 name ib0.2613 type ipoib
  </code></pre>
  <p>I get</p>
  <blockquote>
  <p>RTNETLINK answers: Operation not supported</p>
  </blockquote>
  <p>I searched google and find <a href="https://superuser.com/questions/232807/iproute2-not-functioning-rtnetlink-answers-operation-not-supported">this</a></p>
  <p>It list all the kernel configuration that iproute2 need. I try this ,but it dosn't work for me.
  <strong>My OS is &quot;3.19.0-25-generic #26~14.04.1-Ubuntu&quot;.</strong></p>
  <p>Any help would be appreciate!</p>