Dahua Technology XVR Cooper Series, Руководство пользователя

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Local Configurations 285
5.19.3.1 Configuring Firewall
Select Main Menu > SYSTEM > SECURITY > Firewall . Step 1
The Firewall interface is displayed. See Figure 5-263.
Figure 5-263
Select Enable to enable function in the Type list. Step 2
Configure the parameters. See Table 5-77. Step 3
Parameter Description
Type
In the Type list, you can select Network Access, Sync
Time-Whitelist, Forbid Ping and Semi Join.
Network Access: Configure access right of IP host.

Sync Time-Whitelist: Allow designated IP host to synchronize

or change Device time. Prevent multiple IP hosts from
synchronizing system time with one Device repeatedly.
Forbid Ping: The Device does not respond to Ping requests. 
Semi Join: Protect Device operation from hacker attack.

Mode
Mode can be configured when Type is Network Access.
If Trusted Sites is enabled, you can visit device port 
successfully with
IP/MAC hosts in
Trusted Sites.
If Blocked Sites is enabled, you cannot visit device port with

IP/MAC hosts in Blocked Sites.
Add
When Type is Network Access, you can configure IP Address, IP
Segment and MAC Address.
IP Address Enter IP Address, Start Port and End Port that is allowed or
forbidden.
Start Port