I just did some more testing. On a SSID without layer 2 isolation I can see mac addresses and can ping each client connected.
When I test on my secured vlan I don’t see anything. Using wireshark. So it looks pretty good to me.
Any other tests you can think of to confirm that true layer 2 isolation is working? I’m looking into this due to an experience where a customer using two Aruba 200 series ap’s without a lan controller and the isolation is not secure enough.
Also any option to ensure a client can only connect on the network if it has received a dhcp address from the configured system? I’m using dhcp from my router, not the peplink ac mini
As long as inter-access is failed between the Wifi clients then will be fine. You can further check with Wireshark. Please ensure the clients are connected to the same AP and same SSID. when you do the testing.