What security risks would be caused by using a wireless router with no encryption for the wifi and by configuring it with:
vi /etc/config/wireless option isolate 1
"HW" isolation. Running OpenWRT. In this way, the wireless clients would be separated and wouldn't be able to capture each others traffic. Or are there still security problems, because a wireless client would still be able to say: "I am 192.168.1.1, route the traffic through me" - even when using "option isolate 1"?