I have a Dishtv receiver with sling adapter. The receiver is connected to my router. The router is a netgear DD-WRT flashed router.
I was told be a dishtv rep that the router use port 80, 443 and 5678 and recommended that I keep UPnP enabled. I wasn't told it was udp or tcp.
I haven't set UPnP to enabled on my router yet, when I login into dish portal dishanywhere.com, I can see that my receiver is active (green status).
When I use one of those online portscanner and scan to see if my router to listening on these ports, I get a negative response.
How does dishanywhere know that my receiver is active? Is the receiver sending data packets to dishanywhere server saying that it is alive?
I can control my DVR from dishanywhere i.e. change channels, set recordings, reboot the receiver. Does this means that the dishanywhere.com site is sending packets to the DVR on some port?
If yes, How do I find out the port number?
I want to know if there would be any network security issues?