hi all i want help in managing icmp traffic. this is what i tried --> iptables -t mangle -A PREROUTING -d 10.0.0.0/8 -p 1 -j MARK --set-mark 4001 tc filter add dev eth4 parent 5:0 match protocol ip 1 prio 2 handle 4001 fw classid 5:105 i tried permutaion of >> match protocol ip 1 << but always getting different errors. i want to know whats the syntax for tc when i mark packets with iptables of icmp type ! iptables -nvL PREROUTING -t mangle does shows figures indicating icmp packets r inded being marked ! thanx in advance A.H