On Fri, Jun.09. 22:40 +0800, Ong Chin Kiat wrote: > Suggestions? Hi, simple method, e.g. forcing node a--b--c, if "c" is able to connect physically direkt to "a" w/o packet-loss: on "c" put: iptables -I INPUT -i <wlan-interface> -p udp -s <node-A-IP> --dport 698 -j DROP link-quality between c <-> a will drop dramatically ;-) marco