> I can imagine on Linux you can talk directly to /dev/eth0 if you would want to (in the same way that you can talk to /dev/sda), and then you would be back at

> I can imagine on Linux you can talk directly to /dev/eth0 if you would want to (in the same way that you can talk to /dev/sda), and then you would be back at square one regarding root privileges. It's a AF_PACKET, SOCK_RAW socket rather than a device file, but yes.