VIVOTEK
Port
HTTPS port: By default, the HTTPS port is set to 443. It can also be assigned to another port number between 1025 and 65535.
FTP port: The FTP server allows the user to save recorded video clips. You can utilize VIVOTEK's Installation Wizard 2 to upgrade the firmware via FTP server. By default, the FTP port is set to 21. The FTP port can also be assigned to another port number between 1025 and 65535.
66 - User's Manual