Hi! I admin a linux router at a uni dorm, the internet link is adsl (low upstream bw) so I to write a rule that limits (mostly outbound) p2p traffic. I'm trying something like this: iptables -A FORWARD -m limit --limit 200/s --limit-burst 200 -p tcp --syn --dport 4662 -j ACCEPT iptables -A FORWARD -p tcp --syn --dport 4662 -j REJECT or iptables -A FORWARD -o $IFOUT -m limit --limit 100/s --limit-burst 1000 -p tcp --syn --dport 4662 -j ACCEPT iptables -A FORWARD -o $IFOUT -p tcp --syn --dport 4662 -j REJECT but it doesn't seem to work. I can't use hashlimit because I only can use 2.4 (any patch to use hashlimit in 2.4?). Thanks a lot! Edu