From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?ISO-8859-1?Q?G=E1sp=E1r_Lajos?= <swifty@freemail.hu>
Subject: Re: netfilter_queue: how to obtain address info from queued packet
Date: Tue, 23 Jan 2007 11:27:45 +0100
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To: Michal Martinek <michal.martinek@siemens.com>
Cc: netfilter@lists.netfilter.org


Michal Martinek =EDrta:
>
>
> G=E1sp=E1r Lajos wrote:
>>
>> Michal Martinek =EDrta:
>>> Hello all,
>>>
>>> I am quite a newbie to the netfilter world, so maybe my approach is=20
>>> naive. I would like to block communication coming from/to some ports =

>>> according to the content of packets. Unfortunately these ports are=20
>>> not static, so port specific netfilter rule cannot be used. So my=20
>>> question is:
>>>
>> Do you know the STRING module ?
>
> I'm afraid not. Can you give me some explanation (or link)?
Well... :) man iptables...
iptables -A FORWARD -j DROP -p tcp -m string --string 'Some string'=20
--algo kmp
>
>>> Is it possible to obtain some address info (source/destination=20
>>> address and ports) from the packet queued from netfilter?
>
>