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If you want to change your network card mac address you need to use simple utility called mac changer.MAC changer is a utility for manipulating the MAC address of network interfaces
Possible usages
You're in a DHCP network with some kind of IP-based restriction
You've a cluster that boot with BOOTP and you want to have a clean set of MACs
Debug MAC based routes
MAC Changer Features
Set specific MAC address of a network interface
Set the MAC randomly
Set a MAC of another vendor
Set another MAC of the same vendor
Set a MAC of the same kind (eg: wireless card)
Display a vendor MAC list (today, 6800 items) to choose from
Install MAC Changer in Ubuntusudo apt-get install macchanger
This will complete the installation.
If you Find your MAC address using the following command
ifconfig
eth0 Link encap:Ethernet HWaddr 00:0C:29:A8:D0:FA
inet addr:172.20.22.35 Bcast:172.20.22.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fea8:d0fa/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7690 errors:0 dropped:0 overruns:0 frame:0
TX packets:6399 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4284579 (4.0 MiB) TX bytes:876317 (855.7 KiB)
Interrupt:177 Base address:0×1080
In the above example MAC Address is 00:0C:29:A8:D0:FA
If you want to configure MAC Changer you need to stop the networking services using the following command
For Ubuntu Userssudo /etc/init.d/networking stop
Now you need to configure your MAC address using the following examples
MAC Changer Syntax
macchanger [options] device
Examples
macchanger eth1
Current MAC: 00:09:a5:eb:23:f7 (Hansung Eletronic Industries Development Co., Ltd)
Faked MAC: 00:09:a5:eb:23:f8 (Hansung Eletronic Industries Development Co., Ltd)
macchanger --endding eth1
Current MAC: 00:09:a5:eb:23:f8 (Hansung Eletronic Industries Development Co., Ltd)
Faked MAC: 00:09:a5:6f:31:23 (Hansung Eletronic Industries Development Co., Ltd)
macchanger --another eth1
Current MAC: 00:09:a5:6f:31:23 (Hansung Eletronic Industries Development Co., Ltd)
Faked MAC: 00:11:18:5b:3a:1f (Blx Ic Design Corp., Ltd.)
macchanger -A eth1
Current MAC: 00:06:5b:f6:f3:48 (Dell Computer Corp.)
Faked MAC: 00:0d:11:93:0c:4f (Dentsply -- Gendex)
macchanger -r eth1
Current MAC: 00:0d:11:93:0c:4f (Dentsply -- Gendex)
Faked MAC: 3c:f1:89:f9:1f:ce (unknown)
macchanger --mac=01:23:45:67:89:AB eth1
Current MAC: 00:40:96:43:87:65 [wireless] (Cisco/Aironet 4800/340)
Faked MAC: 01:23:45:67:89:ab (unknown)
./macchanger --list=Cray
Misc MACs:
Num MAC Vendor
--- --- ------
065 -- 00:00:7d -- Cray Research Superservers,Inc
068 -- 00:00:80 -- Cray Communications (formerly Dowty Network Services)
317 -- 00:40:a6 -- Cray Research Inc.
Here is the list of available options for MAC Changer
-h, -help
Show summary of options.
-V, -version
Show version of program.
-e, -endding
Don't change the vendor bytes.
-a, -another
Set random vendor MAC of the same kind.
-A Set random vendor MAC of any kind.
-r, -random
Set fully random MAC.
-l, -list[=keyword]
Print known vendors (with keyword in the vendor's description string)
-m, --mac XX:XX:XX:XX:XX:XX
Set the MAC XX:XX:XX:XX:XX:XX
If you completed the your MAC address changes you need to start the networking service using the following command
For Ubuntu Userssudo /etc/init.d/networking start
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For Ubuntu Userssudo /etc/init.d/networking stop doesn’t work for me still running i have hardy
[Reply]
MAC Changer for Ubuntu 8.04 needs a GUI to make it as easy and convenient to use as various MAC changers are for Windows.
[Reply]
Ubuntu Users who don’t know do to start/stop network services:
To stop network services, enter this command:
sudo ifconfig (network interface) down
To start again:
sudo ifconfig (network interface) up
[Reply]
If I change my mac address, is the changes is permanent. How can I restore back my old MAC address.
[Reply]
azwar: The change is not permanent. Reboot and your old MAC is restored. reboot is not neccesary to restore MAC, you can type:
# macchanger –mac=XX:XX:XX:XX:XX:XX ethX
XX:XX:XX:XX:XX:XX=your original MAC
To show your original MAC, of course before you’ve changed it:
# macchanger -s ethX
What I want to know is why macchanger only works on ethX, and not my wlanX?
[Reply]
I can change my wlanX, so it might be your adapter
[Reply]
sudo vi /etc/network/interface
add “pre-up ifconfig eth0 hw ether 00:e0:4c:dd:7e:b3″
[Reply]
You can try my simple frontend to macchanger called macchangerGUI at
http://medan-slackware.blogspot.com/2010/06/macchangergui-frontend-macchanger-untuk.html
The blog use indonesian, please use google translator to read it.
[Reply]
after changing my mac address, it doesnt want to connect over a network.
when tried to ping to dns, it says “destination host unreachable”
but if i restore the old mac address, networking is fine.
how to configure so that the fake mac address can connect to a network?
please suggest
[Reply]
jken’s method is brilliant and is the way I am looking for.
[Reply]
2ndid Billz.
Jkenz solution works for wireless also!
Good work geez!
[Reply]