From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jason Opperisano <opie@817west.com>
Subject: Re: input filter
Date: Wed, 5 Jan 2005 10:48:57 -0500
Message-ID: <20050105154857.GA24445@bender.817west.com>
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On Tue, Jan 04, 2005 at 02:35:20PM -0800, Bhasker Allam wrote:
> Hi,
> I am a newbie and I was reading the howto for packet
> filter. The howto has the following picture:
> 
> Incoming                 /     \         Outgoing
>        -->[Routing ]--->|FORWARD|------->
>           [Decision]     \_____/        ^
>                |                        |
>                v                       ____
>               ___                     /    \
>              /   \                   |OUTPUT|
>             |INPUT|                   \____/
>              \___/                      ^
>                |                        |
>                 ----> Local Process ----
> 
> The input filtering is done only for local bound
> packets and after the routing decision. Is the above
> true ?

yes.

> Is there a facility to perform input filtering
> before the routing decision ? Thanks.

yes:  -t mangle PREROUTING

-j

--
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