Patch (3206568e43) changed network
interface numbering starts from 1. The index 0 is reserved.
So use api to get default interface index for packet socket sample.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
Sample application which opens a packet socket and receives
every packet on the wire and send some dummy packet over
socket. Simple demo of how to use packet sockets.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>