drop arp request between user on same interface

how can i to block a arp requests between my wireless clients connected on same wlan interface?

my wan (ether1) and lan (wlan1) bridged to bridge1
i need pass a arp from wlan1 to ether1 and from ether1 to wlan1 but not wlan1 to wlan1

default-forwarding disabled but clients authorized via access-list with forwarding=yes

i trying filter rule like this
/interface bridge filter
add action=drop arp-dst-mac-address=FF:FF:FF:FF:FF:FF/FF:FF:FF:FF:FF:FF
chain=forward in-interface=wlan1mac-protocol=arp out-interface=wlan1but that capture no any a arp with “in-interface=wlan1 out-interface=wlan1”