10
About the network security of this unit
Equipped security functions
q
Access restrictions by the host authentication and the user authentication
It is possible to restrict users from accessing this unit by setting the host authentication and/or the user
authentication to on. (page 93)
w
Access restrictions by changing the HTTP port
It is possible to prevent illegal access such as port scanning, etc. by changing the HTTP port number. (page 93)
For enhanced security
Divide the subnet using a router to enhance the network security by double authentications of IP addresses using
this unit and a router. When required to connect this unit with a network without enhanced security, connect the unit
after the network security is enhanced, such as by installing a VPN (Virtual Private Network) device, etc.
Important:
The settings of the unit will be different depending on the settings of the LAN or the Internet service provider to
which the unit is to be connected.
Refer to an administrator of each network for further information about the respective network.
[Connection example]
Installing a firewall to use the packet filtering and the protocol filtering functions can better enhance the network
security.
[Connection example]
WAN*
Router
Router
Global IP Address
IP Address: 192.168.1.100
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.1.1
IP Address: 192.168.0.250
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.0.1
IP Address: 192.168.0.1
Subnet Mask: 255.255.255.0
IBM PC/AT Compatible
IP Address: 192.168.1.1
Subnet Mask: 255.255.255.0
This unit
* Stands for Wide Area Network
1
1
8
2
IN
OUT
CASCADE
OUT
16
16
3
15
15
14
14
13
2
1
13
12
12
11
11
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
VIDEO
AUDIO IN
AUDIO OUT
MONITOR OUT CASCADE IN
MONITOR (VGA)
ALARM/CONTROL
SERIAL
ALARM
POWER
COPY 1
MODE
EXT STORAGE
10/100BASE-T
RS485(CAMERA)
DATA
AC IN
SIGNAL GND
1
4
2
WAN*
Switching hub
Firewall
Router
Router
IP Address: 192.168.1.100
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.1.1
IP Address: 192.168.0.1
Subnet Mask: 255.255.255.0
IP Address: 192.168.1.1
Subnet Mask: 255.255.255.0
IP Address: 192.168.0.250
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.0.1
Global IP Address
IBM PC/AT Compatible
* Stands for Wide Area Network
This unit
1
1
8
2
IN
OUT
CASCADE
OUT
16
16
3
15
15
14
14
13
2
1
13
12
12
11
11
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
VIDEO
AUDIO IN
AUDIO OUT
MONITOR OUT CASCADE IN
MONITOR (VGA)
ALARM/CONTROL
SERIAL
ALARM
POWER
COPY 1
MODE
EXT STORAGE
10/100BASE-T
RS485(CAMERA)
DATA
AC IN
SIGNAL GND
1
4
2
Содержание WJHD309A - DIGITAL DISK RECORDER
Страница 2: ...2...
