Hi, I have installed Tproxy patch on Fedora core 2.6.15.2 kernel. In lsmod I can see the following. ipt_TPROXY 2432 0 ipt_tproxy 2048 0 ipt_REDIRECT 2560 1 ip_conntrack_netbios_ns 3328 0 iptable_nat 7812 1 ip_nat 23340 2 ipt_REDIRECT,iptable_nat iptable_mangle 3200 0 ipt_REJECT 5760 1 ipt_state 2432 4 ip_conntrack 51416 4 ip_conntrack_netbios_ns,iptable_nat,ip_nat,ipt_state nfnetlink 6808 2 ip_nat,ip_conntrack iptable_filter 3328 1 ip_tables 19840 8 ipt_TPROXY,ipt_tproxy,ipt_REDIRECT,iptable_nat,iptable_mangle,ipt_REJECT,ipt_state,iptable_filter But when I try to put the redirection it gives the following error [root@cache netfilter]# iptables -t tproxy -A PREROUTING -i eth0 -p tcp -m tcp --dport 80 -j TPROXY --on-port 80 iptables v1.3.5: Unknown arg `--on-port' Pls. suggest. Regards Sunny