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D-Link DNR-2020-04P User Manual
Section 3 - Configuration
SNMP
If you have SNMP agents that you wish to send traps such as alarms and
syslog messages to your NVR, you can enable and configure your SNMP
settings on this page.
Enable and enter a password for the Read/Write and Read-Only
community strings here. Change the community string to keep
intruders from getting information about the network setup.
This SNMP version adds encryption and authentication to the service for
better security. You can specify separate Read/Write versus Read-only
name and passwords as well as the type of encryption to use.
Enable
SNMPv1,
SNMPv2c:
Enable
SNMPv3: