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ashley thomas wrote:

>A packet having the firewall as destination will have to go thru
>input chain rules and packets staring from the firewall (src ip as firewall) 
>will have to go thru the output rules.
>
>what about the packets which the firewall forwards.
>does it go thru just forwarding rules or does it go thru
>the input rules (while entering) , output rules (while exiting)
>and also the forwarding rules .. ?

Please give up on ipchains, unless you're absolutely stuck with a 
pre-2.4.x kernel.  Then have a look here for Rusty's most excellent 
ASCII-art answer to your question vis-a-vis iptables:

http://netfilter.samba.org/unreliable-guides/packet-filtering-HOWTO/packet-filtering-HOWTO.linuxdoc-6.html

- -d

- -- 
David Talkington

PGP key: http://www.prairienet.org/~dtalk/0xCA4C11AD.pgp
- --
http://setiathome.ssl.berkeley.edu/pale_blue_dot.html

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