On Monday 2008-12-22 22:44, Jianqing Zhang wrote: >I add a rule to the chain of PREROUTING for the nat table as follows: > > iptables -t nat -I PREROUTING -p udp --dport 4309 -j NFQUEUE --queue-num 0 > >However, when I run "iptables -L ", I can see nothing under PREROUTING chain >Do miss something? The manpage. filter: This is the default table (if no ‐t option is passed). It contains the built‐in chains INPUT (for packets destined to local sockets), FORWARD (for packets being routed through the box), and OUTPUT (for locally‐generated packets). -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html