How to change MAC address

artion · Post by **artion** » Wed Feb 23, 2011 1:39 pm

i use openVPN and i need to know how can i change my MAC address ?
is there a way to change my MAC address everytime i want to do that ?
please i need some help

Post by **janjust** » Wed Feb 23, 2011 1:40 pm

on Windows: no, Windows simply won't let you do that without a reboot

On Linux/MacOS: this is possible (and useful) only in 'tap' mode. Read The Fine Manual and look for

Code: Select all

lladdr

artion · Post by **artion** » Wed Feb 23, 2011 2:16 pm

[quote="janjust"]on Windows: no, Windows simply won't let you do that without a reboot

i have only windows.. so there is no chance to change/spoof the MAC address of VPN on windows...

Post by **janjust** » Wed Feb 23, 2011 2:17 pm

it's possible but not without a reboot - simply edit the MAC address of the TAP-Win32 adapter in the registry, reboot , and presto.

artion · Post by **artion** » Wed Feb 23, 2011 2:31 pm

janjust wrote:it's possible but not without a reboot - simply edit the MAC address of the TAP-Win32 adapter in the registry, reboot , and presto.

how can i do that ? please can u explain me step by step.. im new.. i dont know to mutch about that

Post by **janjust** » Wed Feb 23, 2011 2:38 pm

that's off-topic for this forum, really. Search the web for setting the MAC address on a windows network adapter, that should apply to the tap-win32 adapter as well.

It should be something like: go to the network adapters screen, select the 'tap-win32' adapter, click 'configure' . Go to the "Tap-win32 Adapter v9 Properties" page, tab "Advanced" and change the entry "MAC Address"

artion · Post by **artion** » Wed Feb 23, 2011 3:28 pm

janjust wrote:that's off-topic for this forum, really. Search the web for setting the MAC address on a windows network adapter, that should apply to the tap-win32 adapter as well.

It should be something like: go to the network adapters screen, select the 'tap-win32' adapter, click 'configure' . Go to the "Tap-win32 Adapter v9 Properties" page, tab "Advanced" and change the entry "MAC Address"

i have tried how u said , i changed the MAC address manualy but after windows restart the MAC address its the same as before.. i have tried also with SMAC program, unfortunatly no good results ..sorry for offtopic but i still cannot change the MAC address

gsember · Post by **gsember** » Sat Jan 14, 2012 12:19 am

Sorry to necropost, but I have been wondering this myself.

Due to installing OpenVPN *before* cloning an image, I have 14 machines on the network with the same (randomly created TAP-adapter) MAC address.

It _probably_ isn't hurting anything, since they all get differently-assigned IP addresses from the OpenVPN server and most of the communications is TCP/IP and Windows file sharing...

Is the registry method: http://www.windowsreference.com/network ... -registry/
still working in this case? It should also be an interesting test to see if it works with Windows 7 x64.

Thoughts?

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