title: Network communication with Windows 7 XP mode
body: <p>To test a UDP device discovery function without needing a separate computer on my desk, I'd like to test it by making it find an application running in the 'XP mode' virtual PC window on my Windows 7 machine.</p>
  
  <p>However, I'm having difficulty getting the two to be visible to one another. By default, when both my Windows 7 and XP properties for the network adapter are set to "Obtain an IP address automatically", their assigned IP addresses are respectively 192.168.2.2 and 192.168.131.65, both with subnet masks of 255.255.255.0. As they're on different subnets, they can't see each other and I can't ping from one to the other. </p>
  
  <p>However, even if I change both to static IP addresses on the same subnet (e.g. 10.0.0.1 and 10.0.0.2), they still can't seem to see each other and I still can't ping. I have of course ensured that the firewalls are turned off in both contexts.</p>
  
  <p>Is there a way of making this work, or am I on a hiding to nothing here?</p>
  
  <p>Thanks,
  Stephen.</p>