Leszek, : Configuring IMQ for egress traffic, it is not possible : to specify interfaces which we want use to shape. I'm afraid I'll have to disagree! :) Try adding the "-o interface" flag to your iptables command to select based on the output interface. Instead of: iptables -t mangle -A POSTROUTING -j IMQ Use: iptables -t mangle -A POSTROUTING -o eth0 -j IMQ iptables -t mangle -A POSTROUTING -o eth1 -j IMQ iptables -t mangle -A POSTROUTING -o eth2 -j IMQ As long as you don't write an iptables command which matches packets leaving eth3 (and directs them to IMQ), you should have what you desire. -Martin -- Martin A. Brown --- SecurePipe, Inc. --- mabrown@securepipe.com