158
The security function of the recorder
①
Access restriction by the user authentication
It is possible to restrict users to access the recorder by selecting "On" for "User authentication". (
☞
②
Access restriction by changing the HTTP port number
By changing the HTTP port number, it is possible to prevent illegal access such as a port scanning, etc.
(
☞
Important:
• Design and enhance security countermeasures to prevent leakage of information such as image data,
authentication information (user name and password), alarm mail information, FTP server information, etc.
Perform the countermeasure such as the access restriction using the user.
• After the unit is accessed by the administrator, make sure to close the web browser for added security.
• Change the administrator password periodically for added security.
Enhance network security
The registration of the secure communication license allows you to encrypt the communication between the
recorder and camera and enhance the network security. The encryption of the recorded data will further
enhance the security.
Contact your dealer for secure communication. For setting details, refer to the "Operating Instructions Secure
Communication Kit" on the provided CD-ROM.
In addition, network security can be enhanced by the following measures.
It is possible to enhance the network security by dividing the subnet using a router to authenticate users twice
(by the recorder and by the router). When connecting the recorder to an unsecured network, secure the net-
work connection by installing a VPN (Virtual Private Network) device, etc. between the recorder and the host
PC.
Important:
• The settings for the network security vary depending on the network to which the recorder is to be con-
nected such as an intranet or Internet service provider. Refer to a network administrator for further informa-
tion about the network security.
[Connection example]
By using a firewall, etc., it is possible to use packet filtering and protocol filtering to enhance the network security.
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: 192.168.1.100
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
Router
Recorder
Router
PC
Network
Network security of the recorder
[Setup Network]