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[Shazlee69]

Hi,

I'm having problem configuring and appreciate for your support. All my clients are using the Network Video Recorder (DNS-726-4) and D-Link Cameras (DCS-5220 & DCS-2120) for two reasons recording and also phone viewing.

Problems

1)   In order for my clients to view all cameras over the phone, I need to open RTSP port for each camera in my router. The default port set in all D-Link cameras is 554 meaning I have to portforward 554 for all cameras IP address (Assume there are 2 cameras; Camera1 and Camera2). The problem is, one port (554) can be portforwarded to only one IP address. For instance, if I open “554” for camera1 (192.168.1.2), I won’t be able to open the same port “554” for camere2 (192.168.1.3). If I tried it will say “duplicate port error” in my router.

IE viewing: Working fine, Camera1 Http://xxx.xxx.xxx.xxx:300/  Camera2  Http://xxx.xxx.xxx.xxx:400/     (port 300 and 400 is HTTP port I set in the camera setting)   
Phone viewing: Cannot connect
Recording: All cameras connected and working fine with DNS-726-4


2)   Due to that, I’ll need to set different RTSP port for each camera. Let’s say if I change camera1 default RTSP port from “554” to “1000”, and camere2 default RTSP port from “554” to “2000” the NVR (DNS-726-4) will have problem detecting the cameras. I believe supposedly it should connect to the camera using HTTP port that I’ve set instead of RTSP port. Anyway, basically if I change RTSP to other than 554 in the camera setting, DNS-726-4 won’t be able to detect the cameras where only black screen will appear thus I’m having problem recording but I will be able to view it remotely (Desktop IE & Cell Phone).

IE viewing: Http://xxx.xxx.xxx.xxx:300/   Http://xxx.xxx.xxx.xxx:400/     (port 300 and 400 is HTTP port I set in the camera setting)   
Phone viewing: Rtsp://xxx.xxx.xxx.xxx:1000/one.sdp   Rtsp://xxx.xxx.xxx.xxx:2000/two.sdp
Recording: Nothing appeared, DNS-726-4 cannot detect both cameras

3)   The last problem I’m facing is using web server DNS-726-4. In the unit setting screen, port 5150 is set to live-viewing and  5160 is port for playback. So okay I open these two ports in my router. But when I want to view it using IE by entering http://xxx.xxx.xxx.xxx:5150/ it will show an error message “NUSP/1.0 500 CSeq: 0” and for playback when I enter http://xxx.xxx.xxx.xxx:5156/ it will show “NUPP/1.0 400 Internal Server Error CSeq: 1325142766”. So I have to open port “80” and assign it to my DNS-726-4 IP address (190.168.1.4) for me to access. Is this the only way I can remotely view my DNS-726-4 web-host by using port “80”? Why can’t I use “5150” straight because “80” normally being used for me to connect to the router remotely.

Please help me on this matter. Appreciate your time

[Shazlee69]

Anyone can help me??

[marko9889]

Hi,
I could maybe somehow be able to help you, if I got RTSP working first on my DCS-2121.

The (2) thing you wrote is kind of similar to my problem, though I haven't yet tried it behind the router - which makes your problem even more weird..

I use direct cable connection from camera to PC and RTSP has default configuration. I installed RealPlayer to be sure that this protocol will be handled, but still I get the general error when I try the suggested URL: 'rtsp://xxx.xxx.xxx.xxx/mp4' (needless to say, that adding a port there makes no difference).

So I am pretty confused (dealt with rather crazy networking problems in past, that have no logical explanation ), since this seems the easiest thing ever - but I might be missing something here..

[spacereactor]

I having the rtsp problem also, but i finally solve it. The problem is my isp provider, i using singtel to access rtsp but fail, but i try with M1 or starhub another two other isp provider, rtsp work. So better check if your isp is blocking rtsp at the first place.

[marko9889]

Hi,
I am not quite following -- I am using camera <-> PC direct connection over LAN cable, not over any ISP network.

But no media player plays the video.

[ECF]

If you using the DNS-726-4 and you have changed the RTSP port from default on the camera. Add a password to the admin user and changed video mode to Mjpeg.