chap2.fm 20 ページ ２００８年４月８日 火曜日 午後４時１０分
Outline of Functions
Network
Remote Operation
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.
Function | Description |
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Pan & tilt | Adjust the cameras horizontal and vertical |
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Zoom | Zoom in/out the image. |
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Focus | Adjust the focus point of the image. |
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Brightness | Adjust the lens iris. (brightness) |
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Preset | Registers the preset position of camera and moves |
operations | the camera to the registered preset positions. |
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Auto | Select the camera's automatic mode function. |
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Network Security 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.
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.
Connection Examples
IP address: |
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192.168.0.1 |
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subnet mask: |
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255.255.255.0 | 255.255.255.0 |
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IP address: | IP address: | ||
192.168.0.100 | 192.168.1.250 | ||
subnet mask: | subnet mask: | ||
255.255.255.0 | 255.255.255.0 | ||
Default gateway: | Default gateway: | ||
192.168.0.1 | 192.168.1.1 | ||
*Wide Area Network
You can improve network security by using a firewall for packet and protocol filtering.
Connection Examples
IP address: | IP address: |
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192.168.0.1 | 192.168.1.1 |
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subnet mask: | subnet mask: |
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255.255.255.0 | 255.255.255.0 | Firewall |
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Router | Router |
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| WAN* |
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| Switching hub |
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PC |
| Recorder |
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IP address: | IP address: | |
192.168.0.100 |
| 192.168.1.250 |
subnet mask: | subnet mask: | |
255.255.255.0 |
| 255.255.255.0 |
Default gateway: | Default gateway: | |
192.168.0.1 |
| 192.168.1.1 |
*Wide Area Network
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