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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Changing a NIC in a VMware VM from a dynamic MAC into a static MAC address

Posted by Jeroen Pluimers on 2010/06/23

Sometimes you want to hava a NIC in a VMware VM to have a static MAC address in stead of a dynamically generated one.

This sanbarrow.com page explains what to change in the VMX configuration file.

From:

ethernet0.addressType = “generated”
ethernet0.generatedAddress = “00:0c:29:40:7e:22″
ethernet0.generatedAddressOffset = “0″

To:

ethernet0.addressType = “static”
ethernet0.address = “00:50:56:3e:86:29″

VMware also has a few docs on this for workstation and ESX installs and a KB article for both.

–jeroen

One Response to “Changing a NIC in a VMware VM from a dynamic MAC into a static MAC address”

  1. VMWare allows you to put in a static mac in the 00:50:56:xx:xx:xx range because of the use of some good old MAC-based licensing servers.

    Beware! When you use VMWare Converter or upgrade your VM to hw-version 7, these VMX changes may get lost. Therefore, it is recommended to configure the VM using either VirtualCenter or VSphere client.

    My 2 cents

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