From owner-freebsd-net@FreeBSD.ORG Fri Oct 31 03:22:22 2008 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2FAB1106567B for ; Fri, 31 Oct 2008 03:22:22 +0000 (UTC) (envelope-from rmaglasang@infoweapons.com) Received: from infoweapons.com (mail0.infoweapons.net [204.2.248.50]) by mx1.freebsd.org (Postfix) with ESMTP id C70DF8FC22 for ; Fri, 31 Oct 2008 03:22:21 +0000 (UTC) (envelope-from rmaglasang@infoweapons.com) Received: from ([58.71.34.146]) by mail0.infoweapons.com with ESMTP id 4321444.1241783; Thu, 30 Oct 2008 23:06:50 -0400 Received: from [10.3.1.41] ([10.3.1.41]) by cebexch01.cebu.infoweapons.com over TLS secured channel with Microsoft SMTPSVC(6.0.3790.3959); Fri, 31 Oct 2008 11:06:49 +0800 Message-ID: <490A7593.9010209@infoweapons.com> Date: Fri, 31 Oct 2008 11:03:47 +0800 From: "Ronnel P. Maglasang" User-Agent: Thunderbird 1.5 (X11/20060613) MIME-Version: 1.0 To: freebsd-net@FreeBSD.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 31 Oct 2008 03:06:49.0992 (UTC) FILETIME=[B7B7C880:01C93B05] Cc: Subject: rate limiting icmp behavior X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 31 Oct 2008 03:22:22 -0000 Hi All, Pardon if this has been posted. What is really the behavior of the system when it rate limit icmp (e.g. ICMP response)? Does it drop the excess of the outbound ICMP responses? If so, is their a way to see dropped responses from logs or other mechanism? Can this be turned-on at the inbound? Rate limit incoming ICMP request? Did someone experienced system reboots/hangup from this? I've search gnats but I coudn't find bugs related to this. Thanks, sho