Dahua HCVR21**HS-S2 Series, User Manual

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HDCVI Series DVR User
’s Manual
163
Figure 4-88
Please note DDNS type includes: CN99 DDNS, NO-IP DDNS, Dahua DDNS, Dyndns DDNS and sysdns
DDNS. All the DDNS can be valid at the same time, you can select as you requirement.
Private DDNS function shall work with special DDNS server and special Professional Surveillance
Software (PSS).
Dahua DDNS and Client-end Introduction
1) Background Introduction
Device IP is not fixed if you use ADSL to login the network. The DDNS function allows you to access the
DVR via the registered domain name. Besides the general DDNS, the Dahua DDNS works with the
device from the manufacturer so that it can add the extension function.
2) Function Introduction
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.