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 Forum index » Advanced Topics » Puppy Projects » Documentation Project
MAC address - changing it tutorial
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Mic67

Joined: 30 Oct 2006
Posts: 478

PostPosted: Sun 07 Jan 2007, 14:31    Post subject:  MAC address - changing it tutorial  

http://www.debianadmin.com/change-your-network-card-mac-media-access-control-address.html

Change your Network card MAC ( Media Access Control) address
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
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Mic67

Joined: 30 Oct 2006
Posts: 478

PostPosted: Mon 26 Feb 2007, 01:58    Post subject:  

Linux

To change your MAC address in Linux (and most *nix system) is easy as pie. All it takes is two easy to script commands:



ifconfig eth0 down hw ether 00:00:00:00:00:01

ifconfig eth0 up



These two little commands would set your eth0 interface to use the MAC 00:00:00:00:00:01. Just plug in the NIC you want to set and the MAC address you want to use into the commands above and your done. Changing your MAC address is one of those things that is much easier to do in Linux then under Windows.
_______________________________________
OR
_______________________________________
Linux

1) Bring down the interface: "ifconfig eth0 down"

2) Enter new MAC address: "ifconfig eth0 hw ether 00:00:00:AA:AA:AA"

3) Bring up the interface: "ifconfig eth0 up"
_____________________________________
NOW COMPARE THIS TO THE WAY TO CHANGE
YOUR MAC ADDRESS IN MS WINDOWS.

Windows 2000/XP
Method 1:

This is depending on the type of Network Interface Card (NIC) you have. If you have a card that doesn’t support Clone MAC address, then you have to go to second method.

a) Go to Start->Settings->Control Panel and double click on Network and Dial-up Connections.

b) Right click on the NIC you want to change the MAC address and click on properties.

c) Under "General" tab, click on the "Configure" button

d) Click on "Advanced" tab

e) Under "Property section", you should see an item called "Network Address" or "Locally Administered Address", click on it.

f) On the right side, under "Value", type in the New MAC address you want to assign to your NIC. Usually this value is entered without the "-" between the MAC address numbers.

g) Goto command prompt and type in "ipconfig /all" or "net config rdr" to verify the changes. If the changes are not materialized, then use the second method.

h) If successful, reboot your system.

Method 2:

This should work on all Windows 2000/XP systems

a) Go to Start -> Run, type "regedt32" to start registry editor. Do not use "Regedit".

b) Go to "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\ Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}". Double click on it to expand the tree. The subkeys are 4-digit numbers, which represent particular network adapters. You should see it starts with 0000, then 0001, 0002, 0003 and so on.

c) Find the interface you want by searching for the proper "DriverDesc" key.

d) Edit, or add, the string key "NetworkAddress" (has the data type "REG_SZ") to contain the new MAC address.

e) Disable then re-enable the network interface that you changed (or reboot the system).

Method 3:

Use the program Etherchange from http://ntsecurity.nu/toolbox/etherchange/

Windows 9x

Use the same method as Windows 2000/XP except for the registry key location is "HKEY_LOCAL_MACHINE\System\ CurrentControlSet\Services\Class\Net" and you must reboot your system.
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