Iptables Make Rules On Different Interface? "iptables - L" shows no difference!

[ke chen <linux_kurt@xxxxxxxxx>]

hi all,
I want to make iptables impose different rules on two ethernet interfaces.

I would like to make restriction on external interface (eth0), but allow any traffic in and out of internal interface (eth1).
iptables -A INPUT -i eth1 -s 0/0 -d 0/0 -j ACCEPT
iptables -A OUTPUT -o eth1 -s 0/0 -d 0/0 -j ACCEPT

when applying these rules, iptables -L
it shows
Chain INPUT (policy DROP)
target prot opt source destionation
Accept all -- anywhere anywhere

Chain OUTPUT (policy DROP)
target prot opt source destionation
Accept all -- anywhere anywhere

There is no place to differentiate interface eth0 or eth1

Anyone could give me some hints?

Thank you in advance.

BEST REGARDS
kurt

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