13
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 authenti-
cation to on. (page 75)
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 65)
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]
About the Network Security of this Unit
WAN*
Router
Router
IP Address: 192.168.0.100
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.0.1
IP Address: 192.168.1.250
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.1.1
IP Address: 192.168.1.1
Subnet Mask: 255.255.255.0
IBM PC/AT Compatible
IP Address: 192.168.0.1
Subnet Mask: 255.255.255.0
This unit
* Stands for Wide Area Network
10/100BASE-T
2
1
EXT STORAGE
SERIAL
PC
CAMERA
AC IN
ON
ALARM/CONTROL
ALARM
SIGNAL GND
POWER
OFF
WAN*
Switching hub
Firewall
Router
Router
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
IP Address: 192.168.1.250
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.1.1
IBM PC/AT Compatible
* Stands for Wide Area Network
This unit
10/100BASE-T
2
1
EXT STORAGE
SERIAL
PC
CAMERA
AC IN
ALARM/CONTROL
ALARM
SIGNAL GND
POWER
ON
OFF
