From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Lopes <lopsch@lopsch.com>
Subject: Re: Stateful packet inspection
Date: Fri, 04 Mar 2005 17:03:55 +0100
Message-ID: <422886EB.8030804@lopsch.com>
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Michael Tautschnig schrieb:
>>
>> I have been asked if iptables support
>> stateful packet inspection.
>>
>> i.e. verify if traffic on port 21 is FTP
>> and not HTTP (correct me if I'm using the wrong
>> term)
>>
>> Is there any module or development about this ?
>>
> 
> http://l7-filter.sourceforge.net/
> 
> Regards,
> Michael
> 
> 
I thought SPI means inspecting packets for their state i.e. NEW or 
ESTABLISHED. What you mean is a Layer 7 filter, the link to it was 
posted above ;).