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Hi, I 'm having some issues with a DVR I setup with DYNDNS for remote access. This DVR only uses 2 ports (port 8080 for http for user and password capture, and 8000 other for video streaming). I describe what I did when configurating. --Created the dyndns address. Checked the WAN address to match with my IP address. --Set a fixed IP, gateway IP, etc for the DVR, included the dyndns address and ports to be used. --Open ports to the DVR for the router. --Checked that ports were open with Dyndns open ports tool. --Checked local connection from inside the network and worked ok.You can access to the DVR via an installed Software in your PC or via web browser. Both worked ok. Installed software only uses streaming port but I'm afraid that it's not a very stable for Windows, so web browser is preferred. --Checked remote connection via the software in my PC with the dyndns address and it works ok. --I tried remote connection to the web browser with the dyndns address but there was an error and the web browser displays the msg that couldn't establish connection. --Double checked the WAN IP for the dyndns and it's ok. Made ping test to the dyndns address and it responded ok. --I tried remote conection to the web browser using the public IP address and port 8080 and it worked ok. The problem is that I cann't get connected with the DVR with dyndns. The ports are open and working since public IP connection works ok and the dyndns is also working on the software with port 8000. Any Ideas on that?? Thanks, I'll wait for your comments. |
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To sum up key elements from your question (correct me if I have misunderstood anything):
If this is correct, then the port forwarding is not the problem, but your DVR's HTTP service is apparently refusing to serve clients who specify a hostname in the "Host" HTTP header. The web browser takes the hostname from the URL in the address bar, and sends it in an HTTP header called "Host". The DVR may have a setting which allows you to specify a hostname that it should accept. The behaviour described above is a security feature of sorts, found in some DVRs, but it is only useful if it can be configured correctly. |
