QNAP Security VioStor NVR (Version: 3.3.2) - Manual (Page 133)

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 Standalone
The standalone option allows you to assign different IP settings for each network port.
The NVR can be accessed by different workgroups on two different subnets. When
load balancing is enabled, failover does not work. You can only enable the DHCP
server for the primary network port (LAN 1).