와우 리눅스 7.1 을 사용하고 있습니다..
 # iptables --list를 실행하면
 /lib/modules/2.4.2-2wl/kernel/net/ipv4/netfilter/ip_tables.o: init_module: Device or resource busy
Hint: insmod errors can be caused by incorrect module parameters, including invalid IO or IRQ parameters
/lib/modules/2.4.2-2wl/kernel/net/ipv4/netfilter/ip_tables.o: insmod /lib/modules/2.4.2-2wl/kernel/net/ipv4/netfilter/ip
_tables.o failed /lib/modules/2.4.2-2wl/kernel/net/ipv4/netfilter/ip_tables.o: insmod ip_tables failed
iptables v1.2.1a: can't initialize iptables table `filter': iptables who? (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.
 라고 표시됩니다.
 ipchains 는 잘 되는데요..
 무엇이 문제일지 감이 안옵니다..