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How to change the MAC address of an ethernet card?

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nafraf

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Hi,

Does any one have information of how to change de MAC address of a ethernet card?

Tnxs
 

marcosax

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realtek change mac address eeprom windows or dos

In Windows 2000 and XP you can change in properties hardware card
Works in Realtek one. Advanced/Network Address
Good look
Marcosax
 

nafraf

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flexlm mac address 2004 registry

Hi,

I found some interesting utilities in http://www.scyld.com/diag/index.html,
but I didn't test them yet. There are programs to diagnostic and configuration of ethernet cards

Has some body used them?

Thanks
 

nafraf

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Changing in Win2000 doesnt work...

Hi marcosax

Thanks but your answer but that solution works to Windows only.

I tested changing the hardware address of a Realtek8139 in Windows2000, the system apparently change the address but that is a software solution, Its windows who manage the new address, If you restart the machine in Linux you wont see any change.

Now, if you use the diag utils from www.scyld.... on Linux system, the program re-write the eeprom really, this solution work well.
 

dainis

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Re: Changing in Win2000 doesnt work...

Link about subj.

h**p://webpages.charter.net/klai168//Change_MAC_w2k.htm
 

FoxB

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Changing the Ethernet MAC Address on Windows 95/98/ME Systems

1. In the registry, drill down to the path:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Class\Net\0000].

2. Here, add a new string "NetworkAddress" and make its value the desired MAC address.

3. Reboot.


Notes:
On reboot the network card NDIS3 driver will look in a certain place in the registry
for a key named "NetworkAddress". If it doesn't find one, it pulls the MAC network
address from the EEPROM on the network card. This is what normally happens.

You are not changing the MAC address stored in the card's EEPROM, but for all
practical purposes the system has a new MAC address. Only you and the network card
driver will know the difference.

Most network cards NDIS3 drivers will support this feature. 3COM and Intel drivers do.

Use WinIPcfg.exe in the Windows subdirectory to check your currently assigned MAC.

The MAC address is a 12-digit hexidecimal number. Also known in FlexLM circles
as the host ID


Changing the Ethernet MAC Address on Windows NT/2000 Systems

1. In the Control Panel, select "Network and Dial-up Connection" and "Local Area Connection",
Change "Properties\Configure\Advanced".
2. Here, change "Network Address" and enter value the desired MAC address.
3. Reboot.

Notes:
On reboot the network card NDIS3 driver will look in a certain place in the registry
for a key named "NetworkAddress". If it doesn't find one, it pulls the MAC network
address from the EEPROM on the network card. This is what normally happens.

You are not changing the MAC address stored in the card's EEPROM, but for all
practical purposes the system has a new MAC address. Only you and the network card
driver will know the difference.

Most network cards NDIS3 drivers will support this feature. 3COM and Intel drivers do.
Use WinIPcfg.exe in the Windows subdirectory to check your currently assigned MAC.

The MAC address is a 12-digit hexidecimal number. Also known in FlexLM circles
as the host ID.

FoxB
 

M

mdlin

Guest
Network Card chip is Realtek

If your Network Card chip is Realtek RTL8139C,You just only using New Version Driver for edit MAC address.
:lol:
 

trevelyn

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the mac address can be changed at will in linux...
 

dainis

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New software and information about MAC changing ...
h**p://w*w.klcconsulting.net/smac/
 

hock

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Re: MAC ADDRESS CHANGE

who can share the above mentioned software?
hock

h**p://w*w.klcconsulting.net/smac/
the pdf link is bad
hock
 

tlp71@hotmail.com

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Re: MAC ADDRESS CHANGE

i don't find the Davenger Doc, nobodyhave a good link or can post the doc?
Bye.
G.
 

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