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1. Using Static (Public) IP Address
You can use one of Static IP addresses, Subnet Mask and Gateway address provided by your ISP
(Internet Service Provider) for IP address, Subnet Mask and Gateway address fields in Network
Setup menu of your DVR for network connection through Net / Web Viewer. The Gateway address is
the IP address of your Modem.


2. Using Dynamic IP Address
You can use Router with your Dynamic IP broadband modem. In this case, you should set the
configuration of Router properly for network connection between DVR and Net / Web Viewer.
Please follow the instruction in next section to configure your Router correctly.

If your Broadband Modem does not support internal loop back (port forwarding)
function, and if you want to monitor DVR using a PC located in same Intranet,
you should use Direct IP instead of DDVRLS in the connection menu of Net
If your PC is located out of Intranet, you can use both DDVRLS and Direct IP
to connect to DVR even though your Broadband Modem has limited features.
You will know about DDVRLS and Direct IP in Chapter 5, NVR (NET VIEWER).


3. Router Configuration
If your DVR is connected to network through Router, you should configure Router properly.
There are 3 steps as follows.
1. WAN Setting
2. DHCP Setting
3. Virtual Server Setting
Routers from D-Link, Net Gear and Linksys are quoted as examples in this manual.


3.1 WAN Setting
When you connect to your Router, you can find menu for Wan setting. Please confirm the WAN
setting. If you are using DSL service, you should select PPPoE, and you will see sub-menu to
type in DSL user name and password.

3.2 DHCP & IP address Setting
To assign DVR an unique private IP address in your intranet environment automatically, you
can enable DHCP option in the Network Setup menu of your DVR and your router. In this case,
you can skip this section. But to prevent unexpected change of DVR IP address because of
DHCP function of your router when lease time is expired, we recommend to assign DVR IP
address manually. Even in this case, you should enable DHCP server of your router for other
network equipments like computers in the same network.
Also if you have any problem with DHCP function or want to assign the private IP address by
yourself, please disable DHCP option in the Network Setup menu of your DVR and check the
Starting and Ending IP addresses used by DHCP server of the Router.
You can assign any private IP address to your DVR, if it is out of the DHCP range.
But this IP address should be same the IP address in Network Setup menu of your DVR.
See Section 3.4. ccc for right IP address, Subnet Mask and Gateway address for your
DVR network configuration.

3.3 Virtual Server Setting
You should register your DVR as a virtual server into Router. Please type-in the private
IP address of DVR into IP address field of Router. (e.g.
You will see IP address of DVR by pressing Info. button of DVR.

Protocol Type is TCP, and Private/Public Port numbers should be same with the Port numbers
assigned in DVR. And you can change Port numbers in Network Setup menu to avoid the
conflict with other network servers.
Your DVR uses 2 port numbers and the default Port numbers are 9310 and 80.
9310 is for Control, Video and Audio of NetViewer and 80 is for WebViewer.
You need to register both port numbers into Router as Network servers. And please make sure
that your Router dose not block those port numbers to / from the DVR with filter and firewall