From owner-freebsd-questions@FreeBSD.ORG  Thu Apr 10 19:10:04 2008
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 129A01065688
	for <freebsd-questions@freebsd.org>;
	Thu, 10 Apr 2008 19:10:04 +0000 (UTC)
	(envelope-from wojtek@wojtek.tensor.gdynia.pl)
Received: from wojtek.tensor.gdynia.pl (wojtek.tensor.gdynia.pl
	[IPv6:2001:4070:101:2::1])
	by mx1.freebsd.org (Postfix) with ESMTP id 7C0C08FC14
	for <freebsd-questions@freebsd.org>;
	Thu, 10 Apr 2008 19:09:56 +0000 (UTC)
	(envelope-from wojtek@wojtek.tensor.gdynia.pl)
Received: from wojtek.tensor.gdynia.pl (localhost [IPv6:::1])
	by wojtek.tensor.gdynia.pl (8.14.2/8.14.2) with ESMTP id m3AJ884N008295;
	Thu, 10 Apr 2008 21:08:08 +0200 (CEST)
	(envelope-from wojtek@wojtek.tensor.gdynia.pl)
Received: from localhost (wojtek@localhost)
	by wojtek.tensor.gdynia.pl (8.14.2/8.14.2/Submit) with ESMTP id
	m3AJ85Nv008292; Thu, 10 Apr 2008 21:08:07 +0200 (CEST)
	(envelope-from wojtek@wojtek.tensor.gdynia.pl)
Date: Thu, 10 Apr 2008 21:08:05 +0200 (CEST)
From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Rob <bitabyss@gmail.com>
In-Reply-To: <47FE5EC1.7000809@gmail.com>
Message-ID: <20080410210716.V8291@wojtek.tensor.gdynia.pl>
References: <47FE5EC1.7000809@gmail.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
Cc: FreeBSD Questions <freebsd-questions@freebsd.org>
Subject: Re: ipfw denial log - what's this mean?
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 10 Apr 2008 19:10:04 -0000

>
> ipfw denied packets:
> +++ /tmp/security.gnkQg5CA	Thu Apr 10 03:04:15 2008
> +00200        12         795 deny ip from any to 127.0.0.0/8
>
> What does this mean?  I understand that's the loopback interface, but I'm not 
> terribly knowledgeable on ipfw.  Is this some crack attempt, or normal 
> background noise?  I don't understand how lo0 would ever see any IP addresses 
> other than its own?!

while i don't use any of FreeBSD "security" scripts in cron, it probably 
jut copies non-zero count lines from ipfw show for rules marked with deny.