Vonnic VVRHD1620M 16CH HD-SDI 1080P High Resolution DVR (Hard Drive Not Included) - Manual (Page 65)

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4. Set DDNS as SERVER1 and click button. Then EASY DDNS menu will
display.

Automatic Host name registration
i. Click AUTO button. Then the MAC Address of DVR will be
registered automatically as a host name on DDNS.

Manual Host name registration
i. Click button. Then the keyboard window will display.
5. After an exit from SETUP menu, the bellow DDNS NOTIFY window will display.