Yes, the user manual of my AVTECH didn't give much information about network configuration, but i try searching and searching, about the port, i only found 1 port need to configure and that is HTTP Port i think, because the default number port are 80.
i'm testing my external IP, with my laptop and my blackberry device :
1. when i entering external IP with my laptop, using firefox browser, without the port, i can access my DSL Router
2. when i entering external IP with my laptop, using firefox browser, with the port 8080, it's said unable to connect on my browser page
3. when i entering external IP with my blackberry, using eagleeyes software, with my cell service (not using wifi), it's said connection failed
Yes you are right, i ask my friend at other location to open 36.73.XXX.XXX:8080 it brings up my DVR.
you said that my router does not support using external IP while locally, is there something configuration that i need to configure, so that i can use my external IP while locally ?