Dahua HCVR21**HS-S2 Series, User Manual

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HDCVI Series DVR User
’s Manual
252
The Dahua DDNS client has the same function as other DDNS client end. It realizes the bonding of the
domain name and the IP address. Right now, current DDNS server is for our own devices only. You
need to refresh the bonding relationship of the domain and the IP regularly. There is no user name,
password or the ID registration on the server. At the same time, each device has a default domain name
(Generated by MAC address) for your option. You can also use customized valid domain name (has not
registered.).
3) Operation
Before you use Dahua DDNS, you need to enable this service and set proper server address, port value
and domain name.

Server address
：
www.dahuaddns.com

Port number
：
80

Domain name
：
There are two modes: Default domain name and customized domain name.
Except default domain name registration, you can also use customized domain name (You can input
your self-defined domain name.) After successful registration, you can use domain name to login
installed of the device IP.

User name: It is optional. You can input your commonly used email address.
Important

Do not register frequently. The interval between two registrations shall be more than 60 seconds.
Too many registration requests may result in server attack.

System may take back the domain name that is idle for one year. You can get a notification email
before the cancel operation if your email address setup is OK.
5.8.2.7 IP filter
The IP filter interface is shown as in Figure 5-32.
After you enabled trusted sites function, only the IP listed below can access current DVR.
If you enable blocked sites function, the following listed IP addresses can not access current DVR.
Figure 5-32
5.8.2.8 Email
The email interface is shown as in Figure 5-33.