7 ms·
They should, but in practice it seems they aren't. In the past (working at an ISP) I've seen collisions on Ethernet hardware (two Ethernet cards with the same
by gst 15y ago
They should, but in practice it seems they aren't.
In the past (working at an ISP) I've seen collisions on Ethernet hardware (two Ethernet cards with the same MAC address). So if that even happens in a relatively small Ethernet, I assume that this will be fairly common if your address space includes each active WiFi router.
- lotu 15y agoThat has to mac address cloning where, the router clones a computer's Mac address; then that computer is given to someone else who connects it to the network.
- dpark 15y agoI think lotu's probably right. I'd suspect users causing these collissions before I'd suspect that network hardware manufacturers don't know to allocate unique MAC addresses to each card. You can generally trust than a hardware-embedded MAC is unique. http://blogs.msdn.com/b/oldnewthing/archive/2004/02/11/71307.aspx http://blogs.msdn.com/b/oldnewthing/archive/2004/02/11/71307...