Help - How to isolate specific device communication connected on wlan0 interface with same subnet.

[Amul Patel <amulpatel.biz () gmail com>]

Hello Team,

I need help on isolation of devices connected on wlan0 interface.

consider devices are connected on wlan0 interface on same subnet.
ex

device 1 :-192.168.1.9,
device 2:-192.168.1.10,
device 3:-192.168.1.15
wlan0 interface:- 192.168.1.1

Now I want device 1 and device 2 should not communicate, but device 1 and
device 3 should communicate.
Can you help out How I can achieve this?

I tried "option isolate 1"  in /etc/config/wireless but  it restrict all
the clients communication with each other.
But I want to restrict only specific clients communication.

I  checked firewall rules to drop the packets but device 1 to device 2
packets does not reach to firewall. looks its switching at L2 layer only
hence firewall rule is not applicable.
I am using wireless adapter which is creating wlan0 interface using hostapd.


Thanks & Regards,
Amul Patel

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