Network ID and white list

hello Everybody

What means OUI? I don’t understantd good the paragraph below. Can Staff Rak explain please?
How can i create a white list? If I set a network ID, Must i set network ID in all nodes? What adventage i will have in set netword ID?

Packet Filter
By enabling this functionality, you can filter incoming traffic and only forward packets from
the desired nodes in order to optimize bandwidth usage over backhaul. You can filter by
OUI or Network ID by whitelisting.
The Enable Auto Filter slider allows nodes to be automatically dropped in accordance with a
set of parameters. One can set threshold values for Discard Period, Join Period, Join
Interval, and Join Count (1 and 2 for Join Interval and Join Period respectively).

Best regards,

Hi @HCL,

Basically you filter by a portion of the device EUI.