Technitium MAC Address Changer v4.8 Released for Download – Free

Cybertroopers storming your ship?

Technitium MAC Address Changer allows you to change Media Access Control (MAC) Address of your Network Interface Card (NIC) irrespective to your NIC manufacturer or its driver. It has a very simple user interface and provides ample information regarding each NIC in the machine. Every NIC has a MAC address hard coded in its circuit by the manufacturer. This hard coded MAC address is used by windows drivers to access Ethernet Network (LAN). This tool can set a new MAC address to your NIC, bypassing the original hard coded MAC address. Technitium MAC Address Changer is a must tool in every security professionals tool box. Technitium MAC Address Changer is coded in Visual Basic 6.0.

There are some famous, commercial tools available in the market for US$19.99 to as much as US$1500 (!), but Technitium MAC Address Changer is available for FREE. We don’t charge for just changing a registry value! Also knowing how this works doesn’t require extensive research as some commercial tool providers claim!


  • Identifies the preset applied to currently selected Network Interface Card (NIC) automatically making it easy to identify settings.
  • Changes MAC address of Network Interface Card (NIC) including Wireless LAN Cards, irrespective of its manufacturer or its drivers.
  • Has latest list of all known manufacturers (with corporate addresses) to choose from. You can also enter any MAC address and know which manufacturer it belongs to.
  • Allows you to select random MAC address from the list of manufacturers by just clicking a button.
  • Restarts your NIC automatically to apply MAC address changes instantaneously.
  • Allows you to create Configuration Presets, which saves all your NIC settings and makes it very simple to switch between many settings in just a click and hence saves lot of time.
  • Allows you to Import or Export Configuration Presets to or from another file, which saves lot of time spent in reconfiguration.
  • Has command line interface which allows you to perform all the tasks from the command prompt or you can even create a DOS batch program to carry out regular tasks.

You can download Technitium MAC Address Changer v4.8 here:


Or read more here.

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2 Responses to Technitium MAC Address Changer v4.8 Released for Download – Free

  1. ZARk April 28, 2008 at 7:17 am #

    This “just” changes the locally administered mac address.

    So you can always just check the “Globally Unique” bit and guess the mac address is spoofed …

    Wonder if anyone made an iptables filter for those actually .. block them off my network …

  2. ZARk April 28, 2008 at 7:25 am #

    ah well, hold the press.

    After a quick check, it turns out it’s the administrator’s responsibility to set that bit if he changes the MAC address.

    So yeah, you can put a locally administrated mac address that appears to be a globally unique mac address.