Is it possible to isolate the traffic between the switches connected to Brume 3?

[charles2]

Hi,

This is not an issue with the two LAN ports themselves. The limitation mentioned above is mainly related to using one Brume 3 LAN port as a mixed VLAN trunk.

For your use case, the best option is to use the two physical LAN ports as separate access ports.
For example, LAN1 can be used for the main LAN, and LAN2 can be used for the Google AP network.
Configuration example:
The LAN ports on Brume 3 are connected through an internal switch chip, so they need to be assigned to different internal VLANs before they can work as separate networks.

1. Go to LuCI -> Network -> Switch.
   
   
   
   After this configuration, Brume 3 will see the two networks as separate interfaces.
   Then we can assign different IP subnets, DHCP servers, and firewall zones to these two interfaces.
2. Create a new interface for the Google AP network. Go to Network -> Interfaces -> Add new interface.
   
   
   
   
   
   
   If the Google AP is used as a pure access point, disable DHCP on the Google AP.
3. Configure firewall isolation. Create a new firewall zone for the Google AP interface.
   
   
   
   Then save&apply.

With this setup, the Google AP network and the main LAN will be placed in two different subnets.
It isolates the two LAN ports by using separate subnets and firewall zones.