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DVR User’s Manual

4.6.2 UPnP NAT Traversal Function

The UPnP NAT traversal function will help to automatically setup a router if

the DVR connects to the internet via a router.

When a PC connects to a DVR not in the same local area network, a real IP

address and corresponding port number is required. However if the DVR is

behind a router, the communication between the PC and the DVR will be

transmitted back and forth by the router. The router will need to setup port

mapping (forwarding) before images from the DVR can be remotely viewed

on the PC. For each individual DVR, the setting needs to be done individually.

Imagine if there is tens or hundreds of DVRs. The setting will take a long time.

Fortunately, if the DVR has UPnP NAT traversal function, the setting of the

router will be done automatically when it is enabled. Just select <Yes> for the

menu item UPnP NAT Traversal in the UPnP setup menu and it will take care

of everything.

4.7 System Log Exportation

In the Configuration setup menu, select <System Log> and a list of system

logs will be displayed on the screen. Users can export the system log as a

data file to an external storage device. Connect a USB storage device and

click on <Export> (or press COPY key) to export the system log file to the

USB storage device. Note that in the mean time, a digital signature file will

also be exported.

Also under the Configuration setup menu, set <Operation Log> to <On> and

operation logs will begin to be recorded in the system log. Alternatively, set to

<Off> and operation logs will not be part of the system log.

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