So far I''m having pretty good luck with things, but I did run into a problem tonight. Is is possible to match on multiple ports? I want to be able to do something like: tc filter add dev eth0 protocol udp parent 1:0 prio 3 u32 match ip dport 27900-27999 0xffff flowid 1:10 Is this possible, or am I going to have to use iptables to mark the packets and then filter on that? I also couldn''t find the part of the doc that talked about the priority levels, is it 0-2, or 1-3? or something else ? Dan