Dahua NVR21-4KS3 Series User Manual page 352

Step 2 Configure the parameters.
The parameters except Max Connection take effect after the Device restarts.
Parameter
Max Connection
TCP Port
UDP Port
HTTP Port
HTTPS Port
RTSP Port
POS Port
Auto Registration
Port
Step 3 Click Apply.
Figure 5-221 Port
Table 5-59 Port parameters
Description
The allowable maximum clients accessing the Device at the same time,
such as web client, platform, and mobile client.
Transmission control protocol port. Enter the value according to your
actual situation.
User datagram protocol port. Enter the value according to your actual
situation.
The default value setting is 80. You can enter the value according to your
actual situation.
If you change the HTTP port number to, for example, 70, then you need to
enter 70 after the IP address when logging in to the Device through the
browser.
HTTPS communication port. The default value is 443. You can enter the
value according to your actual situation.
The default value is 554. You can enter the value according to your actual
situation.
POS data transmission port. The value range from 1 through 65535. The
default value is 38800.
The auto registered port. Supports adding cameras through auto
registration.
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User's Manual