Frequently Asked Question
Use this article to find the ports that an NVR/VMS (the recording system) uses to reach DeskCamera. A port is a number that, together with the IP address, tells the NVR/VMS where to connect.
Default DeskCamera ports
| Feature | Protocol | Default ports | Purpose |
|---|---|---|---|
| ONVIF discovery | UDP | 3702 | Allows NVR/VMS systems to discover DeskCamera automatically on the local network. |
| ONVIF services | TCP | 8090-8110 | Used by NVR/VMS systems for ONVIF commands. |
| RTSP streaming | TCP | 554-603 | Used by NVR/VMS systems to receive live video and audio streams. |
| browser management | HTTPS / TCP | The HTTPS port shown on the browser page under Settings > Network access | Used to manage DeskCamera from a browser on another computer, when this optional feature is installed and enabled. |
Check the ports of your camera
In Camera Settings, click Start.
In Started Cameras, look at the LAN line in the Camera Address column. It shows the IP address and the ONVIF port, for example
192.168.100.198:8090.Click the Info button (i).
In Camera details, select a stream. The RTSP URL shows the RTSP port after the IP address, for example
rtsp://192.168.100.198:556/….
To keep one fixed camera address, use Multiple channels mode and set ONVIF port to Fixed. See Change the ONVIF Port.
For IT administrators
- The installer can create the Windows Firewall rules for the ports in the table. An update keeps the firewall choice made at installation.
- If you manage the firewall yourself, allow incoming connections to the ports in the table. If the NVR/VMS adds the camera by its address, UDP 3702 is not needed.
- To open only one RTSP port:
Click Stop.
Click OPTIONS > General.
Under PORTS, next to RTSP port, click Fixed.
Type the port number in the box next to Fixed.
Click << BACK, then click Start.
Allow only that TCP port in the firewall.
If the port number changed, change it in the NVR/VMS too.
To watch the camera from outside your network, see Access DeskCamera from the Internet with UPnP Port Mapping.
If the NVR/VMS cannot connect
- Check that the camera runs, and that the NVR/VMS uses the address shown in DeskCamera.
- Check Windows Firewall and other security software on the PC.
- If DeskCamera says that a port is already used, see Fix ONVIF Port 8090 Already in Use.