This surely shouldnt be possible?
 

Ive put a edimax MIMO card in my pc (802.11G compatable) and i wanted to try it out to make sure it works, now we have mac filtering on the network and only my dad has access to the router to change the filters. so rather than wait for him i spoofed the mac of my wired lan card (and disabled the wired lan card obvisouly)


it worked fine checked i could get a signal connect browse.etc yep so it works.


but as where my pc is at the moment ive got a wired connection i dont see a point in using the wireless. So i renabled my wired Nic (but forgot to disable the wireless nic/remove the mac address spoofing first)

Now the strange thing is the router assigned the wired nic a new IP address and didn't seem to give a damn that there were 2 devices on the network both with the same MAC address :Yikes:

ive since disabled the wlan card and removed the spoofed mac but I always thought 2 devices on a network could NOT have the same mac address becuase it would lead to confusion as to which is which. so how come it worked :confused:

router is a belkin preN if it makes any difference.

Re: This surely shouldnt be possible?
 

Where TCP/IP is concerned, it couldn't care less what the MAC Address is as long as the IP exists.

Re: This surely shouldnt be possible?
 

As Zeph said....

And anyway, if you couldn't have two mac addresses on the same network then you could bugger someone's net connect by spoofing their mac address.

Re: This surely shouldnt be possible?
 

The Only Protocol that matters really where the MAC Address is concerned is IPX/SPX IIRC that is still used on Novell networks.