Dahua VTA2302A Quick Start Manual page 30

suggested to use VLAN, network GAP and other technologies to partition the network,
so as to achieve the network isolation effect.
 Establish the 802.1x access authentication system to reduce the risk of unauthorized
access to private networks.
 It is recommended that you enable your device's firewall or blacklist and whitelist
feature to reduce the risk that your device might be attacked.
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