Dahua HCVR5204A Series, User Manual

Page: 126 / 268

117
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.
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.
4.10.2.7 IP Filter
IP filter interface is shown as in Figure 4-62. You can add IP in the following list. The list
supports max 64 IP addresses. System supports valid address of IPv4 and IPv6. Please
note system needs to check the validity of all IPv6 addresses and implement
optimization.
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.

Enable: Highlight the box here, you can check the trusted site function and blocked
sites function. You can not see these two modes if the Enable button is grey.

Type: You can select trusted site and blacklist from the dropdown list. You can view
the IP address on the following column.

Start address/end address: Select one type from the dropdown list, you can input IP
address in the start address and end address. Now you can click Add IP address or
Add IP section to add.
a) For the newly added IP address, it is in enable status by de
fault. Remove the √