I looked and found a ''very simple'' command sequence to shape traffic to a specific host. However, I ''cribbed'' the command sequence from a online tutoral from ''somewhere''. I now have lost the example, and my altered sequence. the command I am getting an ''RTNETLINK'' Invalid argument error from is: tc qdisc add dev eth0 root handle 1: cbq avpkt 1000 bandwidth 3700kbit I don''t think I used this particular set of options previously. Somehow I think I was using the sfq rather than the cbq. The goal that I have at the moment is to limit the bandwidth of data sent to a particular host. I had this working but seem to have lost a specific parameter sequence. Thanks John Clark