Macchanger – Utility for manipulating the MAC address of network interfaces (Included GUI Utility)

July 1, 2010 · General · Email This Post

A GNU/Linux utility for viewing/manipulating the MAC address of network interfaces

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

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

Screenshot



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1 Comment to “Macchanger – Utility for manipulating the MAC address of network interfaces (Included GUI Utility)”

  1. Petur says:
    July 4, 2010 at 5:46 pm

    This is how this should be done:

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

    No need for third party software.

    And the point ‘* You’re in a DHCP network with some kind of IP-based restriction’ is paradoxic, since you would need an internet connection in the first place to install the program before you change the mac in order to log onto the network.

    [Reply]

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