How to change the MAC address of network interfaces in ubuntu

A GNU/Linux utility for viewing/manipulating the MAC

address of network interfaces


* 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

Possible usages

These are some examples:

* 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

Install macchanger in Ubuntu

sudo apt-get install macchanger macchanger-gtk

Command line Examples

# macchanger eth1

Current MAC: 00:40:96:43:ef:9c [wireless] (Cisco/Aironet 4800/340)
Faked MAC: 00:40:96:43:ef:9d [wireless] (Cisco/Aironet 4800/340)

# macchanger –endding eth1

Current MAC: 00:40:96:43:e8:ec [wireless] (Cisco/Aironet 4800/340)
Faked MAC: 00:40:96:6f:0f:f2 [wireless] (Cisco/Aironet 4800/340)

# macchanger –another eth1

Current MAC: 00:40:96:43:87:1f [wireless] (Cisco/Aironet 4800/340)
Faked MAC: 00:02:2d:ec:00:6f [wireless] (Lucent Wavelan IEEE)

# macchanger -A eth1

Current MAC: 00:40:96:43:39:a6 [wireless] (Cisco/Aironet 4800/340)
Faked MAC: 00:10:5a:1e:06:93 (3Com, Fast Etherlink XL in a Gateway)

# macchanger -r eth1

Current MAC: 00:40:96:43:f1:fc [wireless] (Cisco/Aironet 4800/340)
Faked MAC: 6b:fd:10:37:d2:34 (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.

Macchanger GUI

You can open the gui by running the following command from your terminal

$ macchanger-gtk


Or you can do this

sudo ifconfig eth0 down
sudo ifconfig eth0 hw ether 00:a0:WH:AT:EV:ER
sudo ifconfig eth0 up

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