The biggest problem will be that the communication between mixrack and editor is using many different TCP ports. Therefore, you will need public IP addresses for both mixrack and editor-laptop without firewall. For the mixrack, this is not very smart 
You could use a router that forwards everything to a public IP address to the mixrack on the internal network. It would be an interesting thing to try
If you want to connect the surface over Internet, you will run into problems with the ACE connection. This basically means that you can connect the surface, but you will lose the local audio i/o (and pfl).
Frank
—
IDR32, PL10, Dell Latitute XT tablet
Our adventures with this setup: https://gonnagles-engineering.blogspot.com
