Flickr Photos

Roe Deer
Leopard in the rain
Lion mum taking care of cubs
Male Lion
Lion Cubs Playing
Leopard
Lazy Spotted Hyena
Female Lion
Cheetah
Golden Jackal
Golden Jackal
Young Cheetah

Change your NIC MAC-address

Sometimes you just want to change your MAC-address (For example to get new IP-address from DHCP server).
If you have luck you can change your MAC-address just with:
[cc lang=”bash”]sudo ifconfig wifi0 down hw ether 00:11:22:33:44:55[/cc]

but with my EeePC that didn’t work so I had to use software called MacChanger.

First we check what is my MAC-address right now:
[cc lang=”bash”]
whig@scriptkiddie:~$ ifconfig wifi0
wifi0 Link encap:UNSPEC HWaddr 00-15-AF-**-**-**-E0-E3-00-00-00-00-00-00-00-00
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:242 errors:0 dropped:0 overruns:0 frame:57
TX packets:195 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:280
RX bytes:26977 (26.3 KB) TX bytes:8970 (8.7 KB)
Interrupt:10
[/cc]

Then we just give two simple command:
[cc lang=”bash”]
whig@scriptkiddie:~$ sudo ifconfig wifi0 down
whig@scriptkiddie:~$ sudo macchanger wifi0 -m 00:11:22:33:44:55
Current MAC: 00:15:af:**:**:** (unknown)
Faked MAC: 00:11:22:33:44:55 (Cimsys Inc)
[/cc]

And then we check my MAC-address again:

[cc lang=”bash”]
whig@scriptkiddie:~$ ifconfig wifi0
wifi0 Link encap:UNSPEC HWaddr 00-11-22-33-44-55-E0-E3-00-00-00-00-00-00-00-00
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:428 errors:0 dropped:0 overruns:0 frame:97
TX packets:219 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:280
RX bytes:42459 (41.4 KB) TX bytes:10074 (9.8 KB)
Interrupt:10
[/cc]

and as we can see my MAC-address has changed.

[warning]As you see it’s so easy to change your MAC-address that using MAC-filtter on your wireless network is pretty useless.[/warning]

2 comments to Change your NIC MAC-address

  • brodie7838

    I like Technitium MAC Address Changer if you’re on a Windows box, though it’s super easy to change the MAC in the NIC properties without any additional software, or even CLI.

Leave a Reply

You can use these HTML tags

<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>