User's Manual

IP CAMERA User Manual
13
If user wants to put several IP Cameras into WAN, every device should set the
port forwarding. In order to distinguish these devices, every device should set
a different port. If the port of the device is not 80, should add the port to IP
address with colon to visit the IP Camera. Example: http://202.96.82.177:81
.
6.2 DDNS
In Figure 5, Router-1 get WAN IP address via ADSL, these WAN IP address is always
changing, so, the IP address can’t be confirmed when visit the device in WAN. We need
the dynamic domain name server (DDNS). IP Camera-1 send IP configuration to DDNS
every few time, DDNS can recognize the WAN IP address of the router-1 which
connected with IP Camera-1. The WAN IP address can be searched on DDNS by
domain name. Herein, domain name substitute the dynamic IP address. If the device
can’t be visited by IP address, this domain name is also unavailable.
6.2.1 Manufacturer’s DDNS
Device manufacturer has established a DDNS, and allotted a dynamic domain name to
every device, the domain name has been integrated into devices when producing. For
example, enter domain name of Figure 11, the browser will connect the device and
display the IP address.
Figure 11
The domain name is realized by forward manner, the domain name will change
into the IP address and port number of the device when visit by domain name.
If the device can be visited by IP address but can’t be visited by manufacturer’s
domain name, please check the DNS info is available or not and make sure
the DNS setting is the same with the DNS setting of PC in LAN.
6.2.2 Third Party DDNS
User can also use third part DDNS, such as www.3322.org. User should apply a free
domain name from this website and fill the info into the below blanks (Figure 12) and
save the settings. Then the domain name can be used.
Figure 12