Article ID: 2693675
The virtual network adapter setting Enable spoofing of MAC address may not be applied even after enabling it when creating or modifing a Virtual Machine (VM) template in System Center 2012 Virtual Machine Manager (VMM).
The resulting PowerShell script that is created with the VM template wizard omits the -EnableMACAddressSpoofing parameter.
Use the following commands in a VMM command shell to configure this setting for an existing VM template.
NOTE Replace VMTemplate01 in the example below with the name of the template to be modified
When creating a new VM template, on the Configure Hardware step, select a hardware profile with Enable spoofing of MAC address already enabled.
To create a Hardware Profile:
For information on Configuring NLB for a Service Tier review the following link:
(http://go.microsoft.com/fwlink/?LinkId=151500)for other considerations.