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74 | Performance Series Network Video Recorder User Guide
If you enable Trusted Sites , then only the IP addresses that are listed can access the NVR. If
you enabled Blocked Sites , then the listed IP addresses can not access the NVR.
Configuring the NTP Setup
Before you can use NTP, you must first install an SNTP server (such as Absolute Time Server)
in your PC. In Windows XP OS, you can use
command net start 232 time
to boot up an
NTP service.
Table 3-13 IP Filter Configurations
Parameter Function
Enable Click to enable either Trusted Sites or Blocked Sites . The
Trusted Sites/Blocked Sites drop-down menu is available only
if those functions have been enabled here.
Type Select either Trusted Sites or Blocked Sites . When you
select either Trusted Sites or Blocked Sites , the IP address
list for that selection appears in the table.
IP Start address/IP End
address 1. Select a list Type .
2. Enter start and end IP addresses.
3. Click in the field, and enter the IP address.
• Newly added IP addresses are enabled by default. Click
to disable and remove the IP address from the list.
• The NVR supports up to 64 IP addresses.
• The NVR supports both IPv4 and IVp6 address formats. If
you are using an IPv6 address, the NVR can optimize that
address. For example, aa:0000: 00: 00aa: 00aa: 00aa:
00aa: 00aa as aa:: aa: aa: aa: aa: aa: aa.
• The NVR automatically removes spaces if there are
spaces before or after the newly added IP address.
• If you add an IP address, the NVR checks the start
address only. If you add an IP address section, and the
end address is greater than the start address, then the
NVR check both the start and the end address.
• The NVR checks if the newly added IP address exists. The
NVR will not accept the new IP address if it does not exist.
Delete Click to remove the selected item.
Edit Click to edit the start address and/or the end address. After
editing the IP address, the NVR can again check for the new
IP address’ validity, and implement IPv6 optimization.