madbob is offline madbob
02-05-2007 , 11:06 AM
Posts: 8 | Thanked: 0 times | Joined on Oct 2006
#1
Hi,
I've been trying to change my MAC address -

ifconfig hw wlan0 00:11:22:33:44:55:66
as root seems to complete OK, but doesn;t 'take' - when I do

ifconfig

afterwards, it's back to the original.

Is it possible? How?
 
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brendan is offline brendan
02-05-2007 , 11:17 AM
Posts: 531 | Thanked: 77 times | Joined on Oct 2006 @ This side of insane, that side of genius
#2
i have no idea how to do so, but there are means to accomplish that, packaged with a live cd distro that i muck around with. you can check them out at - http://remote-exploit.org/ and their forum, that you may be able to search - http://forums.remote-exploit.org/.

from what i do understand is that ifconfig lists the BIC (Burned In Card) mac address. to have it listed differently you have to have the OS step in when that command is run and answer back what you configure (by some outside means), instead of querying the card for the value.
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madbob is offline madbob
02-06-2007 , 09:05 AM
Posts: 8 | Thanked: 0 times | Joined on Oct 2006
#3
OK, RTFM time

ifconfig wlan0 hw ether aa:bb:cc:dd:ee:ff
 
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brendan is offline brendan
02-08-2007 , 06:39 PM
Posts: 531 | Thanked: 77 times | Joined on Oct 2006 @ This side of insane, that side of genius
#4
check out this link - http://www.irongeek.com/i.php?page=security/changemac
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miagi is offline miagi
11-14-2007 , 06:33 PM
Posts: 46 | Thanked: 2 times | Joined on Oct 2007
#5
Sorry for bringing this old thread up again. I tried to use the command above

ifconfig wlan0 hw ether aa:bb:cc:dd:ee:ff

and I believe I successfully changed my MAC address but I cannot connect to wifis now anymore
 
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Johnx is offline Johnx
11-14-2007 , 07:19 PM
Posts: 643 | Thanked: 628 times | Joined on Mar 2007 @ Seattle (or thereabouts)
#6
I ended up at the same place when I tried this a while ago. I think support for changing the MAC address would need to be enabled in the (closed source) driver for this to work properly. If you're still having trouble connecting to wifi, reboot your device to get your old MAC address back.

-John
 
the-earth-beater is offline the-earth-beater
01-03-2008 , 08:10 PM
Posts: 1 | Thanked: 0 times | Joined on Jan 2008
#7
I have tried OS2007, OS2008, and OS2008 r&d mode.
tried wirelesstools:
ifconfig wlan0 down
ifconfig wlan0 hw ether XX:XX:X....
ifconfig wlan0 up
tried macchanger.

All lead to the same place. They will not let me reconnect to the network with the bogus MAC address.
 
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barry99705 is offline barry99705
01-03-2008 , 08:54 PM
Posts: 641 | Thanked: 27 times | Joined on Apr 2007
#8
Is it a credible mac address?? If you're just pulling numbers and letters out of your butt, then it's not going to work. The mac has to have a valid oui. Something like this,
Code:
00:12:17:48:02:D2
changed to
Code:
00:12:17:48:B2:C2
will work. The first three pairs,
Code:
00:12:17
, means it's a linksys card. The last three is the unique card id,
Code:
48:02:D2
, these are the numbers you want to change. Using something like
Code:
12:34:DE:AD:BE:EF
most likely won't work. Most wireless routers know the difference between real, and made up numbers.
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nossifer is offline nossifer
01-10-2008 , 10:08 PM
Posts: 12 | Thanked: 2 times | Joined on Dec 2007
#9
i followed the directions to the letter at work... didnt work.
so, i tried it at home with a controlled environment. still didnt work. it looks like this may just be driven by the hardware?
 
instigator is offline instigator
01-11-2008 , 12:29 AM
Posts: 118 | Thanked: 18 times | Joined on Dec 2007 @ Mississauga, ON Canada
#10
sudo gainroot
ifconfig wlan0 down hw ether 12:12:84:23:1f:62
ifconfig wlan0 up


with macchanger installed...works for me with that address I made up randomly.
 

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