CNET CIC-930W - Manual (Page 41)

Account/E-Mail Enter the login name for the DDNS account.
Password/Key Enter the password for the DDNS account.
Check WAN IP
Address Set the schedule for checking if the Internet IP address has
changed. If the IP address has changed, the DDNS Server will be
notified.
NOTE: If the DDNS Service provided some software to perform
this IP address update or notification, you should NOT use this
software. The update is performed by the camera.
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