swh - I'm thinking out loud. Let's assume you connected your device X to an under the seat box. Yes you can easily change your device's MAC address in software. Now you want to change the MAC address of your device X, to spoof the MAC address of sensor Y. But how do you sniff the MAC address of sensor Y if there is no packet from or to Y on the segment of the network you're listening to? It also doesn't introduce itself to you with ARP broadcasts. You also can't alter the hardcoded table of MAC addresses that every device except yours has. Assuming you figured out a way, now how do you insert your spoofed packets to go beyond a switch that discards your packets?
Last edited by deptrai; 17th May 2015 at 08:00.