Re: Control Behringer X32 over an internet conection (not a lan)
Hey George,
I'm a long time lurker and network engineer, registered just to post this and hope to save you some grief. Realtime control protocols such as the ones between a surface and a mixer, or app and a mixer, etc were written with the expectation they would be used on a LAN -- that is, relatively high bandwidth, and low latency. Because of that, we don't know what assumptions the programmers made, or where error checking is lacking. Thus, it's a really terrible idea to try to route it directly across a WAN, because we don't know how the device would react if a timeout was exceeded in a spot it usually isn't, or if a packet was dropped, etc. Some really weird things could happen, and weird things don't go well with live sound. Also, like Erik said -- the computer security community (hackers) makes a concerted effort to scan for new remote devices, identify them, exploit them, then post all about it so others can learn. There's even automated sites that find interesting things in advance (eg, shodanhq.com). Given the rapid popularity of the X32, it is not far fetched to consider that exploits may already exist, or will soon.
Save yourself a lot of trouble. Get a cheap PC, leave it connected and powered on, and install one of the many remote control options (LogMeIn, Teamviewer, GoToMyPC, etc -- whichever one you like). Then remote control the PC to control the mixer. This way you avoid the severe security implications, as well as the unknown protocol goofiness. Besides, this is something you can probably figure out yourself and won't need to budget for a network engineer to help set up a static IP or dynamic DNS, the VPN endpoint, etc.
Good luck!