[quote=fcwilt;22048620]There should be a "status" page somewhere in your "router" that tells you what your current WAN IP address is. [quote]
Right. Got it.
Where I was using the name FREDERICK you would use whatever name you entered for the HOST name on the DYN DNS page. This name is how you access your home network from the outside world.
Yep. Blandolodge for me
The name entry on the "router" port forwarding page would be a name for the computer or device you are "forwarding" to - in your case it might be "Home Thermostat" or "Living Room Thermostat" - whatever makes sense. The IP address is the LAN address of the computer or device you are "forwarding" to - in your case the IP address of your thermostat.
Got it. For this, the IP address would be 192.168.0.1
[quote]I have been assuming all along that your thermostat is, in fact, designed to be controlled via a web browser and thus has a tiny little web server listening for a connection on port 80 - thus 80 becomes the private port number for the port forwarding entry.[quote]
Yes, it has a web server built in. So, if in looking at the Port Forwarding page on the router, I could give it a port forwarding address of 8080? Correct?
If the HOST name entered into the DYN DNS page was "MyHome" and the public port you entered (for the thermostat) on the port forwarding page was 6789 to connect to your thermostat from a web browser you would enter MyHome:6789.
OK. Since my HOST name is blandolodge and the port I have for it is 8080, my web browser address would be: blandolodge.dlinkdns:8080 or just blandolodge:8080?
The HOST address on the DLINK DYN DNS page is blandolodge:dlink.com. Correct? (I attached DYN DNS page below).
What happens at this point is the web browser issues a request out on the internet for a connection to MyHome:6789. Eventually a DNS server somewhere looks up MyHome and comes up with your current WAN address (which the DYN DNS service has kept up to date) so the request now looks like xxx.xxx.xxx.xxx:6789 (where xxx.xxx.xxx.xxx is your current WAN IP address) which is sufficient to establish a connection to the WAN side of your "router". Then your "router" looks at the 6789 port number part and determines from the port forwarding entries what device (your thermostat) to forward the request to. If everything works as intended you would now have a active connection to your thermostat from the browser.
I can't wait to try it! Thanks for you over the top patience. I understand HT but this stuff is a bit new to me!!