Hi ; HTB2 patch for kernel 2.2.17 HTB2 patch for iproute2 Here is my script : tc qdisc del dev eth0 root tc qdisc add dev eth0 root handle 10£º htb default 20 tc class add dev eth0 parent 10: classid:10:1 htb rate 90mbit ceil 90mbit burst 2000 tc class add dev eth0 parent 10:1 classid 10:100 htb rate 10mbit ceil 30mbit prio 1 tc class add dev eth0 parent 10:1 classid 10:20 htb rate 80mbit ceil 90mbit prio 3 ipchains -A fwbr ¨Cs A.B.C.D ¨Cd E.F.G.H -m 100 ¨Cj ACCEPT ipchains ¨CA fwbr ¨Cs 0.0.0.0 ¨Cd 0.0.0.0 ¨Cj ACCEPT BUT: tc filter add dev eth1 protocol ip parent 10:1 prio 1 handle 100 fw classid 10:100 OUTPUT : "RTNETLINK answers: Invaid argument" i can try this in whatever stage of my script (before ipchainss, after qdiscs and classes, whatever), it's always that "answer" :) WHY?? thanks for your help regards, haipe ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿË™¨¥Šx%ŠË,SùšŠYšŸ÷lõ¯ç–m§ÿÿ™¨¥™©ÿvÏZþy™¨¥™©ÿ–+-ŠwèþV«µÁÎY3ÿ†Ûiÿÿåj»\þŠà