From owner-freebsd-current@freebsd.org  Tue Dec 13 15:43:31 2016
Return-Path: <owner-freebsd-current@freebsd.org>
Delivered-To: freebsd-current@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 64D69C75A66
 for <freebsd-current@mailman.ysv.freebsd.org>;
 Tue, 13 Dec 2016 15:43:31 +0000 (UTC)
 (envelope-from imb@protected-networks.net)
Received: from mail.protected-networks.net (mail.protected-networks.net
 [202.12.127.228])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client CN "mail.protected-networks.net",
 Issuer "Protected Networks CA" (not verified))
 by mx1.freebsd.org (Postfix) with ESMTPS id 34939308;
 Tue, 13 Dec 2016 15:43:30 +0000 (UTC)
 (envelope-from imb@protected-networks.net)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=
 protected-networks.net; h=content-transfer-encoding:content-type
 :content-type:in-reply-to:mime-version:user-agent:date:date
 :message-id:from:from:references:subject:subject; s=201508; t=
 1481643808; bh=U0gs6DdCLubhZdk8dbHSc5zBILPud7rnh6unoK1cR8U=; b=G
 tFJ+1uHpZNHn1/v0cPPOiQ+OwAGz2mkfY5KoJ1cAUJFY2gmXodEpMWROCU7BzTGu
 7zS4iJ/U+4nwEnEMKd4yYaWXwvWm3Rcbfxxi+NL9/xBxdFonqjNwA86ci8GdSj/G
 22ycdGlOBcATWT0kJ1iu5Z7I6uByVYE5KQD1rkL9j8=
Received: from toshi.auburn.protected-networks.net (unknown
 [IPv6:2001:470:1f07:4e1::4])
 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
 (Client did not present a certificate)
 (Authenticated sender: imb@mail.protected-networks.net)
 by mail.protected-networks.net (Postfix) with ESMTPSA id 576A51BECA;
 Tue, 13 Dec 2016 10:43:28 -0500 (EST)
Subject: Re: Log spam: Limiting * response from 1 to 200 packets/sec
To: Dimitry Andric <dim@FreeBSD.org>
References: <630314dc-e14f-02e7-aa48-4456b0feeef9@protected-networks.net>
 <8332C070-E7C8-4CF3-B5DF-2355D9FA20D1@FreeBSD.org>
Cc: FreeBSD Current <freebsd-current@FreeBSD.org>
From: Michael Butler <imb@protected-networks.net>
Message-ID: <1eb2e94b-c460-8116-8ffc-f7884be644f7@protected-networks.net>
Date: Tue, 13 Dec 2016 10:43:27 -0500
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:45.0) Gecko/20100101
 Thunderbird/45.5.1
MIME-Version: 1.0
In-Reply-To: <8332C070-E7C8-4CF3-B5DF-2355D9FA20D1@FreeBSD.org>
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 7bit
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
 <freebsd-current.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-current>, 
 <mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current/>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
 <mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 13 Dec 2016 15:43:31 -0000

On 12/13/16 10:29, Dimitry Andric wrote:

> Somebody is most likely port scanning your machines.  I see this all the
> time on boxes connected to the internet.

As are mine. I wouldn't mind so much if the message contained sufficient 
useful information that could be acted on, e.g. originating IP address 
and, when appropriate, destination port.

> sysctl net.inet.icmp.icmplim_output=0, or increase the ICMP limit, if
> you want to help the port scanners. :-)

I've added the sysctl to mute the warnings - thanks :-)

	Michael