Digitus Internet Camera DN-16003 User Manual

Product codes
DN-16003
Page of 101
 
76
A: If a firewall exists on the network, port 80 is open for ordinary 
data communication.  However, since the Internet Camera 
transmits image data, the default port 8481 is also required.  
Therefore, it is necessary to open port 8481 of the network for 
remote users to access the Internet Camera.