title: Multicasting + Linux Kernel
body: <p>I have one doubt regarding multicasting in linux kernel. When multicast data arrives
  linux kernel checks MFC and if the matching entry is not found then kernel gives conrol message cache miss and header to the user space. My question is what happens to the data
  packet? Suppose i may deliberately not want to keep the entry inside MFC but i may have some
  other table which has got forwarding information and i want to use that one then what to do?</p>
  
  <p>Regards,
  Bhavin.</p>