From owner-freebsd-isp@FreeBSD.ORG Tue Feb 12 16:54:30 2013 Return-Path: Delivered-To: freebsd-isp@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 8FB5F5A3 for ; Tue, 12 Feb 2013 16:54:30 +0000 (UTC) (envelope-from norbert.aschendorff@yahoo.de) Received: from nm19.bullet.mail.ne1.yahoo.com (nm19.bullet.mail.ne1.yahoo.com [98.138.90.82]) by mx1.freebsd.org (Postfix) with ESMTP id 366AA195 for ; Tue, 12 Feb 2013 16:54:29 +0000 (UTC) Received: from [98.138.226.180] by nm19.bullet.mail.ne1.yahoo.com with NNFMP; 12 Feb 2013 16:52:16 -0000 Received: from [98.138.226.30] by tm15.bullet.mail.ne1.yahoo.com with NNFMP; 12 Feb 2013 16:52:16 -0000 Received: from [127.0.0.1] by smtp201.mail.ne1.yahoo.com with NNFMP; 12 Feb 2013 16:52:16 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.de; s=s1024; t=1360687936; bh=N2KHZGcrCqPKTkbIYYTthVF0hUy7Ns+yhvGY29FiT9Y=; h=X-Yahoo-Newman-Id:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Message-ID:Date:From:User-Agent:MIME-Version:To:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=C8yFa5Zaka7JHg4L5CQ8oBEkIcFkGxGxvuIUewl61cFMAJNFT6ynBDjshfxWieSXyOB/j4nA5aQjie50o6TeEPBnezLuhJ4RfcOc0onkArT8soHkkEFRzN39Tnq5MACEL8Yy2n8y0qGVHyzlQ+kemOgWqGxOEwqGRyxn+Jj1oTk= X-Yahoo-Newman-Id: 116015.3965.bm@smtp201.mail.ne1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: 48_5mYsVM1m79Ip38FvMCVbS39NETdvuqhLms.qT1RzaBlc bq3KMO0HMB8FU0gb3wmB3OGAjlzvckabB3Y_42TOoDmOWQ.CGHeFj4zPFiwm jlt6pyXIHmy4oo4uxLwqF_kdYj4nwwhSnFlW66V_FkLiT.16YK6XJVMucs3O zGVE1qIE3ul2H8UwAksBJvCsZPb58YoGnkG1801ONcA3Kwxrpjf7sdmHzXXA tQZV_yBuovioJfK5OCdpNjrQeouHrYCgY5OExi.iuozecVubOQ3LUVi4qFlt e1PRfIBAWIyI1V6dh0NzPkCpe9xUXr3UWegXVXb5c38LTwejkqZF6FMC39ut ._PDROC_bm_ML.wBr1rSnFjzp5rbmNHqvIbt29YBVd46jvhlZ8abedHvXv1q R4CjE0XHxd0qioB94WaxAGw4Sw2Wk.vVt1umDEjf9QtbVlvVqySO4vcYzWBu Mzkfv93R0L2rYYB9YjODo X-Yahoo-SMTP: d20YFqmswBAWc4wd23BcX3DKFU.SSFWadKORXj_BQPQ- Received: from vostro-linux.goebo.site (norbert.aschendorff@46.5.47.79 with plain) by smtp201.mail.ne1.yahoo.com with SMTP; 12 Feb 2013 08:52:16 -0800 PST Message-ID: <511A733E.3000208@yahoo.de> Date: Tue, 12 Feb 2013 17:52:14 +0100 From: Norbert Aschendorff User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130112 Icedove/17.0.2 MIME-Version: 1.0 To: freebsd-isp@freebsd.org Subject: Re: FreeBSD DDoS protection References: <321927899.767139.1360461430134@89b1b4b66ec741cb85480c78b68b8dce.nuevasync.com> <51179708.2030206@epipe.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Feb 2013 16:54:30 -0000 In fact, it's specified in RFC1122: 3.2.2.6 Echo Request/Reply: RFC-792 Every host MUST implement an ICMP Echo server function that receives Echo Requests and sends corresponding Echo Replies. I think it implies that the implementation should actually work. :) --Norbert