Sun VDI: How to use virtual machines with multiple network adapters

[originally posted by Sarah Fortune 8-Jan-2009, last updated 04-Feb-2009. Latest update by Stephanie, Feb 2011, at http://wikis.sun.com/pages/viewpage.action?pageId=200868900]

Using virtual machines with more than one network interface can be problematic.  Sun VDI expects RDP to be available on the primary interface. If RDP is actually running on a different interface, then the machine may not be prepared successfully or assigned to users.

The problem arises in determining which exactly is the primary interface. The VMware documentation would lead us to believe that it is the primary interface listed in Windows. But, this is not the case. In fact, the primary interface is determined by the order of the network adapters in VirtualCenter. The network adapter with the highest number, usually the one which was added most recently, is the primary network adapter.

How to change the network of the primary adapter

  1. Edit the virtual machine settings in VirtualCenter.
  2. Select the network adapter with the highest number, e.g Network Adapter 3.
  3. This is the primary network interface. Change the network label to the appropriate network for RDP.
  4. You may need to adjust the other network adapters so that the virtual machine is assigned to all the correct networks.

VirtualCenter edit settings

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