MAC Address Changer

Data that travels over the air and how to protect (or decipher) it

MAC Address Changer

Post by orwell84 on Sun May 31, 2009 9:41 am
([msg=24671]see MAC Address Changer[/msg])

I've been spending the past few weeks trying to see how I might be able to break into my own network, and I decided to see if I could bypass a MAC Address Filter. I blacklisted the MAC of one of my computers and tried to get in. I used GNU macchanger, but for some reason it would never work. I could put the interface down with ifconfig, and make it look as though the MAC address had changed, However, as soon as the interface was put back up, the old (blacklisted) MAC address was restored. How can I make it so that the faked MAC stays there and that I can get into my network?
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Re: MAC Address Changer

Post by mischief on Sun May 31, 2009 2:25 pm
([msg=24675]see Re: MAC Address Changer[/msg])

you can use ifconfig to change your mac address. (linux, mac, solaris, *bsd)
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Re: MAC Address Changer

Post by orwell84 on Sun May 31, 2009 4:38 pm
([msg=24686]see Re: MAC Address Changer[/msg])

I did that and it looks as though the driver for my wireless card doesn't support it. It works for my ethernet (eth0) interface but not the wireless card. I mean, when the interface is down it works with ifconfig -a, but when it comes back up it resets, like it did before.
Is there a way I can get a different driver that does support it? Or change the driver? Or write my own?
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Re: MAC Address Changer

Post by mischief on Mon Jun 01, 2009 5:09 am
([msg=24707]see Re: MAC Address Changer[/msg])

it depends on your card. you could try using whichever stack you aren't using currently. mac80211 is the newer stack, ieee80211 is the old stack. but it's probably best to use mac80211 if you can. maybe you ought to invest in a better card/better supported card if it matters so much.
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Re: MAC Address Changer

Post by insomaniacal on Mon Jun 01, 2009 7:35 am
([msg=24708]see Re: MAC Address Changer[/msg])

I have no previous experience with this, but you could try using Ndiswrapper for a driver and see if you get any results that way.
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Re: MAC Address Changer

Post by orwell84 on Tue Jun 02, 2009 12:42 pm
([msg=24768]see Re: MAC Address Changer[/msg])

I tried to see if I'm using mac80211, and from what I read I'm pretty sure I am. It's a Ralink card (rt2860 I think) if that helps.
No, it's not terribly important, but it would be nice to be able to do this.
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Re: MAC Address Changer

Post by mischief on Thu Jun 04, 2009 12:38 am
([msg=24848]see Re: MAC Address Changer[/msg])

run this command
Code: Select all
lsmod | fgrep rt2860


if that comes up as rt2860sta, you have the same driver as me :P

however, it's a pretty crappy driver and it's not well supported, so you might be SOL. got any other wifi cards laying around?
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Re: MAC Address Changer

Post by orwell84 on Wed Jun 10, 2009 5:15 pm
([msg=25213]see Re: MAC Address Changer[/msg])

Yeah, that's what I've got. Its a netbook (Asus Eee 901) so the wireless card can't be upgraded.
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Re: MAC Address Changer

Post by mischief on Wed Jun 10, 2009 6:37 pm
([msg=25222]see Re: MAC Address Changer[/msg])

it can be upgraded, lol. it's actually a miniPCI card, so anything that is miniPCI (and fits in the slot?) should work fine in there.

on a side note, i seem to be able to change my mac fine in windows on my eee pc 1000, but i don't think i've tried in linux. it could be a driver problem indeed :(
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Re: MAC Address Changer

Post by orwell84 on Fri Jun 12, 2009 11:38 am
([msg=25279]see Re: MAC Address Changer[/msg])

sayyy...how much work is involved in developing a driver? Could one person do it?
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