In one of the 70-412 videos, specifically related to failover hyper-v clustering or hyper-v replica setup, Mike and Don mentioned a way to have a failover hyper-v exist in two different subnets (with two disparate IP address schemes) but allow the hyper-v VM's to continue using the IP address from the first subnet. I think they mentioned using a GRE tunnel. I was looking to see if they had any more information on setting this up. We have a few machines that we would like to do this on and I'm not sure of the exact implementation of this technology. Any help you can give with this topic will be most helpful.