Hi I'm a nubee to qos and I get the following error [root@bws ~]# ./shaper.sh RTNETLINK answers: Invalid argument We have an error talking to the kernel when I add the following line /sbin/tc filter add dev $PUINT protocol ip parent 1:0 pref 0 u32 I'm using Fedora Core 5 64bit Many thanks -- Gregory Machin gregory.machin@xxxxxxxxx www.linuxpro.co.za