Dahua NVR21-S2 SERIES, Руководство пользователя

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Step 4 Click Save button to complete broadcast group setup.
Note
On the broadcast interface, click to change group setup, click to delete group.
After complete broadcast setup, on the preview interface and then click on the navigation
bar, device pops up broadcast diaologue box. Select a group name and then click to
begin broadcast. See Figure 4-219.
Figure 4-219
4.10.6 Security
4.10.6.1 IP Filter
IP filter interface is shown as in Figure 4-220. You can add IP in the following list. The list supports max 64
IP addresses. System supports valid address of IPv4 and IPv6. Please note system needs to check the
validity of all IPv6 addresses and implement optimization.
After you enabled trusted sites function, only the IP listed below can access current NVR.
If you enable blocked sites function, the following listed IP addresses cannot access current NVR.

Enable: Highlight the box here, you can check the trusted site function and blocked sites function.
You cannot see these two modes if the Enable button is grey.

Type: You can select trusted site and blacklist from the dropdown list. You can view the IP address
on the following column.

Start address/end address: Select one type from the dropdown list, you can input IP address in the
start address and end address. Now you can click Add IP address or Add IP section to add.
a) For the newly added IP address,
it is in enable status by default. Remove the √ before the item,