jimbarstow

Understood. I'll run an experiment tonight to see if the arduino network interface can handle a name (isy994-ems NOT isy.universal-devices.com) instead of a raw ip address to set variables via your REST interface.

In poking around I noticed that the actual name is "isy994-ems". So what is "isy.universal-devices.com"? And by what process does it get translated into the correct ip address? It can't be pushed out the the ISP's DNS so where is that name resolution occurring? I'd like to know because I'm gathering information from a bunch of sensors hooked up to arduino micro controllers. I'd like to be able to push/pull data between the ISY and the arduinos but I can't have any hard-coded IP addresses. I have almost everything working independently and am stuck on the IP address issue. I'm hoping the answer is something I missed, such as we use "xyz" protocol. So far I've investigated local DNS servers (nope), IP reservations on the router (nope), routing tables (don't think so), etc.

When I hooked up my ISY, it got its IP address from my ISP, NOT my router. In spite of not having a local DNS, I can get to the ISY by name, "http://isy.universal-devices.com/99i/".I need to do this for another server that will be talking to the ISY but can't figure out how they did it. In my research, none of the solutions fit the environment that I'm running in. (Apple Airport Extreme in bridge mode to my ISP DHCP server.) Any idea how the ISY does this?