Questions on port 37777 with multiple IP2M-841 camera

[nukzero]

I purchased 2 IP2M-841 and 1 IP3M-943.

They are all set up now on my wireless router and for the first device I have them all using TCP 37777 and UDP 37778. However, on HTTP, they are using a different port number such as: 60000, 60001, and 60002.

They are now configured with no-ip ddns.net so I can access it through a webbrowser and login through the amcrest configuration page for each camera.

So port 60000 is forwarded to camera 1, 60001 to camera 2, and 60003 to camera 3.

The problem I'm not understanding with networks is.... on which ports are the cameras "outputing" the video stream back to the device (such as my phone)? Are they using the port 37777 ? Then how it is possible that all 3 cameras can share port 37777 and udp port 37778 ?

If I don't want be able to have to access the cameras configuration page, should I not have port forwarded those ports to each individual camera in my router and then just added the cameras by their TCP port? But then how would the amcrest know which camera is which if all 3 cameras are using the same TCP, the same UDP, and the same HTTP port?

Thanks

[Melvin]

Hello nukzero ,

You need to set up port forwarding with unique port numbers for each camera to access it externally with the public IP or DDNS method. If you add the camera on the app with serial number , this is not required as it connects through the p2p server through random port numbers.

[Bradbury]

Are the unique port numbers the http ports, or are the unique port numbers the 37777 numbers, or both? I also noticed that when I initially set up each of my 3 Amcrest cameras that they all use Channel #1 !? I can't seem to change the channel number. At this time I am not using a NDVR, just connecting to my wireless router connected to my AT&T router.

[Melvin]

Hello Bradbury ,

You need to port forward both ports. But if you are using the phone app, you need to enter the TCP port in there. The channel number option might be coming up because when you added the camera on the app, you selected DVR/NVR option and not wifi camera.

[tonester]

IIRC on the Amcrest cameras, channel 1 is to view the Main Stream while channel 2 is to view the Sub Stream.

[Bradbury]

My setup is ATTuverse modem -> Linksys router -> Netgear 8 port POE -> cameras.
To do the port forwarding which device do I need to set to port forward?

[Melvin]

Hello Bradbury ,

You need to set up port forwarding on both ATTuverse modem and Linksys router. In Lynksys router, you can set up forwarding using the cameras ip address. It AT&T, you need to set up port forwarding using the wan Ip of the Lynksys router.