Sometimes it is just necessary to change MAC address (also known as ethernet address, physical/arp/hardware address or even hwaddr) of network interface in Ubuntu. It is far out of this post’s scope to list here all possible reasons of doing it so I just listed below several ways to change MAC address under Ubuntu Linux. All of those ways require typing commands in terminal so open it in in Ubuntu menu.
In order to see all interfaces detected by your Ubuntu as well as their MAC addresses and hardware names type the following command:
sudo ip addrHere is sample output:
1: lo: mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: mtu 1500 qdisc pfifo_fast state DOWN qlen 1000 link/ether 4c:22:d0:b8:78:ae brd ff:ff:ff:ff:ff:ff 3: wlan0: mtu 1500 qdisc mq state UP qlen 1000 link/ether 00:19:7e:53:8c:a3 brd ff:ff:ff:ff:ff:ff inet 192.168.1.18/24 brd 192.168.1.255 scope global wlan0 inet6 fe80::219:7eff:fe53:8ca3/64 scope link valid_lft forever preferred_lft forever
It shows three interfaces: lo, eth0 and wlan0 (these are hardware names of them). MAC or hardware address is shown in link/ether line, e.g. current MAC address of eth0 is 4c:22:d0:b8:78:ae.
Change MAC address in Ubuntu using ifconfig
sudo ifconfig eth0 down
sudo ifconfig eth0 hw ether 4c:22:d0:b8:78:ae
sudo ifconfig eth0 up
Where eth0 is hardware name if the interface and 4c:22:d0:b8:78:ae is desired MAC address for it.
Macchanger console utility
Install macchanger using command:
sudo aptitude install macchanger
Installed application makes it possible not only to change MAC address to defined one but also makes it possible:
- Change MAC to random value
- Apply MAC from list of vendors
For example to change MAC address of the interface to hardware address belonging to Linksys you can do the following:
macchanger --list=linksysIt will show that Linksys MAC addresses start with 00:0f:66. Now change MAC address of the interface:
sudo ifconfig eth0 down
sudo macchanger -m 00:0f:66:4e:16:88 eth0
sudo ifconfig eth0 up
You will see the following output in case of successful change of MAC address:
Current MAC: 4c:22:d0:b8:78:ae (unknown) Faked MAC: 00:0f:66:4e:16:88 (Cisco-linksys)
Please notice that above mentioned ways to change MAC address in Ubuntu implies that normal hardware address will be restored once you rebooted.
Change MAC Address in Ubuntu | TurboLinux Blog
Posted on August 18, 2011 at 12:12 pm[...] Here is a excellent tutorial show you how to Change MAC Address in Ubuntu: Change MAC address in Ubuntu using ifconfig [...]
goodboy
Posted on August 30, 2011 at 2:15 pmthnxxx that was really helpful
anonymous
Posted on December 21, 2011 at 11:43 pmThe problem, at least with wifi, is that network manager changes my mac address back to the original when it connects to my AP. Have you experienced this or know how to resolve it?
Ben
Posted on January 19, 2012 at 9:18 pmthanks!
Andrew
Posted on February 10, 2012 at 11:52 pmI'm trying to change MAC on my wlan0 but it just doesn't work properly. My MAC stays the same.
sudo apt-get install macchanger macchanger-gtk
sudo ifconfig wlan0 down
sudo macchanger -r wlan0
sudo ifconfig wlan0 up
I tried changing it in GUI but still no effect. When ever I type
ifconfig
I see my original MAC
I also checked it with Fing which is an app for Android phone, it shows you all connected devices to network, their IPs and MACs.
Unfortunately I can't get access to my route UI 'cos it's password protected.
Any ideas why it's not working?
Andrew
Posted on February 10, 2012 at 11:55 pmI'm on Ubuntu 10.10
Cliff
Posted on February 13, 2012 at 7:24 pmI had to pkill NetworkManager on mine. Here is the script I used, on Ubuntu 10.10, but it doesn't seem to work on 9.10
#!/bin/bash
mac=00:0d:${RANDOM:1:1}${RANDOM:1:1}:${RANDOM:1:1}${RANDOM:1:1}:${RANDOM:1:1}${RANDOM:1:1}:${RANDOM:1:1}${RANDOM:1:1}
echo $mac
#exit
sudo pkill NetworkManager
ifconfig wlan0 | grep HWaddr
sleep 3
sudo ifconfig wlan0 down
#ifconfig wlan0 hw ether 00:12:43:57:99:01
sleep 3
sudo ifconfig wlan0 hw ether $mac
sudo ifconfig wlan0 up
sleep 3
sudo ifconfig wlan0 hw ether $mac
ifconfig wlan0 | grep HWaddr
#modprobe ndiswrapper
sudo NetworkManager
Cliff
Posted on February 13, 2012 at 7:29 pmoh yea, the official way to stop NetworkManager is:
sudo service network-manager stop
replace stop with start to start it
I haven't tested it this way though
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Bigrey
Posted on June 18, 2012 at 1:01 pmok people with wi-fi wanting to change their wlan0 mac adress and have problems with the Mac getting back to the original when trying to connect. here's what you do
sudo service network-manager stop
sudo ifconfig wlan0 down
sudo macchanger -r wlan0 (or ''hw ether'' instead of -r to put your personalised MAC)
sudo ifconfig wlan0 up
sudo service network-manager start
now you should be good
Chuck
Posted on July 5, 2012 at 1:39 amThank You Bigrey!
Didn't have to stop the network on my old card.
mukund
Posted on July 26, 2012 at 2:30 pmThankx for helping… just a question more….. what about our wifi then?
Adam
Posted on November 2, 2012 at 6:28 amDoes it work in all Linux,or just Ubuntu? Am looking for MAC address change method for all Linux.
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Posted on December 11, 2012 at 10:50 pmOk, I found this thread in search for some hope to change my MAC address cause I thought I was getting blocked at the library for downloading movies. I went threw the steps an did everything that was suggested an now I have no network at all, when I reboot I get a message that says the system is waiting for the network configuration. Then the os finally boots and I have not network, no icon, not nothing as if my wifi and Ethernet hooked up and rode off into the sunset. Any help? Please! Also I’m a super noob so I obviously don’t know what I’m doing. Thanks
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