title: Routing configuration to forward multicast traffic to a single NIC on RedHat 6
body: <p>I'm trying to edit <code>/etc/sysconfig/network-scripts/route-eth0</code> to make all multicast packets sent to device eth0 on <code>RedHat 6.3</code>, following <a href="https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/s1-networkscripts-static-routes.html" rel="nofollow">this guide</a>.</p>
  
  <p>I tried writing like:</p>
  
  <pre><code>224.0.0.0/4 dev eth0
  </code></pre>
  
  <p>but it never works....
  How can I specify multicast routing on this file?</p>