another iptables question

[igueths at comcast.net]

Hi all. Supposing I create a chain whose policy is LOG and I use a syntax
like: iptables -A NAMEOFCHAIN -i eth0 -o eth1 -p icmp --icmp-type
ECHO_REPLY -j DROP. Would the packet first be logged and then dropped?
Also, does -i eth0 -o eth1 imply that the packet is going in eth0 and out
eth1? Or does it imply that the packet is going in eth0 and out eth1 at the
same time, which is impossible anyway? Thanks!

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