Different zones in my global subnet mask


what is the best way to make differents zone in my subnet ? I whould like make that:

The solution is it to make several LAN interface or to use firewall zones ? I do a test, but I lost my OpenWRT and I had to reset it to recovered my access.

Best regards.

If you want more control in the traffic among subnets, then it is better to have different zones.
One interface will belong to one firewall zone.

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I must create 5 interfaces and 5 zones ? One for each subnets and 1 for the global LAN ?

First of all you cannot have one interface in and the others in subnets of the /24
You definitely need to create 4 or 5 interfaces. The last one can be or
The zones that you'll create depends mostly on how you want to regulate the traffic among the interfaces. If for example 2 interfaces can have the same forwardings to other zones, they can belong to the same zone.

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