Outline of Functions
20
The recorder and cameras connected to it can be operated from a
PC on the network.

Enabled functions

When monitoring images from a camera with pan and tilt function.
The recorder has two network security functions.

Limit access with user authentication/host

authentication

Turn on the user and host authentication to limit users that can
access the recorder.

Limit access by changing HTTP ports

Illegal access from port scanning is prevented by changing the
HTTP port number.
• To improve security even more
To improve network security, use a router to divide the subnet,
make two layers of IP address authentication with the recorder
and router. If the recorder is connected to a network that is not
secure, you can improve security by inserting a VPN between the
recorder and the host PC.

Connection Examples

You can improve network security by using a firewall for packet and
protocol filtering.

Connection Examples

Network

Remote Operation

Function Description
Pan & tilt Adjust the cameras horizontal and vertical
position.
Zoom Zoom in/out the image.
Focus Adjust the focus point of the image.
Brightness Adjust the lens iris. (brightness)
Preset
operations
Registers the preset position of camera and moves
the camera to the registered preset positions.
Auto Select the camera's automatic mode function.

Network Security Function

Important:
•Network security settings vary depending on the LAN the
recorder is connected to and the service provider and other
various settings. Contact the network administrator to discuss
network security.
IP address:
192.168.1.250
subnet mask:
255.255.255.0
Default gateway:
192.168.1.1
IP address:
192.168.0.100
subnet mask:
255.255.255.0
Default gateway:
192.168.0.1
IP address:
192.168.1.1
subnet mask:
255.255.255.0
IP address:
192.168.0.1
subnet mask:
255.255.255.0
*Wide Area Network
WAN*
Recorder
Router
Router
PC
Recorder
Switching hub
IP address:
192.168.1.250
subnet mask:
255.255.255.0
Default gateway:
192.168.1.1
IP address:
192.168.0.100
subnet mask:
255.255.255.0
Default gateway:
192.168.0.1
IP address:
192.168.1.1
subnet mask:
255.255.255.0
IP address:
192.168.0.1
subnet mask:
255.255.255.0
*Wide Area Network
WAN*
Firewall
Router
Router
PC
ND400_Basic.book 20 ページ ２００８年７月１０日　木曜日　午前１０時５０分