From mboxrd@z Thu Jan  1 00:00:00 1970
From: Patrick McHardy <kaber@trash.net>
Subject: Re: netfilter: nf_conntrack: log packets dropped by helpers
Date: Wed, 26 Aug 2009 14:55:29 +0200
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To: Pascal Hambourg <pascal.mail@plouf.fr.eu.org>
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Pascal Hambourg wrote:
> Hello,
> 
> May I ask what are the reasons for a helper to drop packets ?

Mainly parsing errors, memory allocation errors and bugs.