Good people, I want to thank you all for your awesome help so far and also want to make my problem clear to you all so that I can get more definite help. I have 256kpbs internet link to share among 4 customers- A=176 burstable to 256; B=16; C=32; D=32. But the problem is that my script FAILED TO LIMIT customers B, C,and D. My complete tc scripts is as follows; tc qdisc add dev eth1 root handle 1: htb default 1 #Classes tc class add dev eth1 parent 1: classid 1:1 htb rate 9bps ceil 9bps #Default tc class add dev eth1 parent 1: classid 1:100 htb rate 9bps ceil 9bps #ICMP tc class add dev eth1 parent 1: classid 1:5 htb rate 176kbps ceil 256kbps #Customer A tc class add dev eth1 parent 1: classid 1:101 htb rate 16kbps ceil 16kbps #Customer B tc class add dev eth1 parent 1: classid 1:111 htb rate 32kbps ceil 32kbps #Customer C tc class add dev eth1 parent 1: classid 1:121 htb rate 32kbps ceil 32kbps #Customer D #Leafs # A # tc class add dev eth1 parent 1:5 classid 1:90 htb rate 176kbps ceil 256kbps #Queues tc qdisc add dev eth1 parent 1:11 handle 211: sfq perturb 10 #Customer A tc qdisc add dev eth1 parent 1:101 handle 281: sfq perturb 10 # Customer B tc qdisc add dev eth1 parent 1:111 handle 282: sfq perturb 10 # Customer C tc qdisc add dev eth1 parent 1:121 handle 283: sfq perturb 10 # Customer D #Ip Assignment# U32="tc filter add dev eth1 protocol ip parent 1:0 prio 4 u32" u32="tc filter add dev eth1 protocol ip parent 1:0 prio 0 u32" # A # $U32 match ip dst 200.200.200.11 flowid 1:11 $U32 match ip src 200.200.200.11 flowid 1:11 #Customer B# $U32 match ip dst 172.16.0.11 flowid 1:101 $U32 match ip src 172.16.0.11 flowid 1:101 #Customer C# $U32 match ip dst 172.16.0.12 flowid 1:111 $U32 match ip src 172.16.0.12 flowid 1:111 #Customer D# $U32 match ip dst 172.16.0.13 flowid 1:121 $U32 match ip src 172.16.0.13 flowid 1:121 #virus ping $U32 match ip protocol 1 0xff flowid 1:100 What exactly am I doing wrong please? Can anyone re-write it for me or give me a better one please. Kind regards. Cheers! digihall7 __________________________________ Do you Yahoo!? Yahoo! Tax Center - File online by April 15th http://taxes.yahoo.com/filing.html _______________________________________________ LARTC mailing list / LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/