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VIRTUAL PRIVATE NETWORK MAC ADDRESS FILTERING HOW TO
VIRTUAL PRIVATE NETWORK MAC ADDRESS FILTERING REGISTRATION

Next, scroll down and click on the Network Adapters link.

Under the Virtual Machines menu on the left side of the wide, mouse over “Configure” and then select the VM to configure.

To change a MAC address from dynamic to static, you just need to follow these steps in the Virtual Server Management Web page: Of course, if you’re using MAC address filtering on your network switches, then you'll need to assign static MAC addresses to each VM. Generating addresses dynamically when a VM starts will prevent duplicate MAC addresses from causing virtual network conflicts.

Here are the MAC OUIs of other popular virtualization platforms:īy default, Virtual Server generates dynamic MAC addresses for each VM’s virtual network interfaces. So by default, Virtual Server VM MAC addresses will range from 00-03-FF-00-00-00 to 00-03-FF-FF-FF-FF. If you check the IEEE site, you’ll see that Microsoft has the MAC address OUI prefix of 00-03-FF.

VIRTUAL PRIVATE NETWORK MAC ADDRESS FILTERING REGISTRATION

You can check on the OUI of any vendor by pointing your Web browser to the IEEE Registration Authority – IEEE OUI and Company_id Assignments site. An OUI is a unique MAC address prefix assigned that is assigned to all NIC vendors, both physical and virtual. Virtual MAC address assignments are based on Microsoft’s organizationally unique identifier (OUI) registration with the Institute for Electrical and Electronic Engineers (IEEE). Also, is there an easy way to audit the MAC addresses of the VMs on a Virtual Server host system? We use MAC address filtering on our switches and I’m worried about the impact of virtual MAC addresses on the network infrastructure.Īdam, you raise some very good issues.

VIRTUAL PRIVATE NETWORK MAC ADDRESS FILTERING HOW TO

Here’s how to audit and configure virtual MAC addresses on Virtual Server VMsĬan you tell me more about how MAC addresses are assigned with Microsoft Virtual Server.