Dear sir(lady) I used iproute2-2.4.7-now-ss011019-donotuse.tar.gz and iputils-ss011202.tar.gz for linux kernel 2.4.18 iptables 1.2.6 CONFIG_NETLINK_DEV=y CONFIG_IP_NF_TARGET_NETLINK=y i can use any command option about "ip" but I can not use "tc" such as tc qdisc add dev eth0 parent 10:100 sfq quantum 1514b perturb 15 the error message is "RTNETLINK answers: Invalid argument" please tell me how can i do? _________________________________________________________ Do You Yahoo!? 摊开你的掌心 让我看看你 http://sweepstakes.yahoo.com/2002cnuser