From owner-svn-src-all@freebsd.org Sat Aug 20 17:48:01 2016 Return-Path: Delivered-To: svn-src-all@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 C3B86BC0B9F; Sat, 20 Aug 2016 17:48:01 +0000 (UTC) (envelope-from bms@fastmail.net) Received: from out2-smtp.messagingengine.com (out2-smtp.messagingengine.com [66.111.4.26]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 93D70181B; Sat, 20 Aug 2016 17:48:01 +0000 (UTC) (envelope-from bms@fastmail.net) Received: from compute2.internal (compute2.nyi.internal [10.202.2.42]) by mailout.nyi.internal (Postfix) with ESMTP id 05CD52043E; Sat, 20 Aug 2016 13:47:59 -0400 (EDT) Received: from frontend1 ([10.202.2.160]) by compute2.internal (MEProxy); Sat, 20 Aug 2016 13:48:00 -0400 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=fastmail.net; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-sasl-enc :x-sasl-enc; s=mesmtp; bh=q/qH+owN5tPPAXQXPTDVjlduApQ=; b=PeOQBO s869a9UqOL5UP9mSNXEjiRXW+gLf9FMJWLqK6JdlIywponEcrP7pwIwM7ks9d4BH YAIkhKVKuGCDtgMbPuncSQYFHVYCT5yejubeBjLLO/myp+DFFKJmGN4Nj/v9gRoC OuoLM5vE+dI3C2c4aUnEgjg8fCc6DinliTwLU= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-sasl-enc:x-sasl-enc; s=smtpout; bh=q/qH+owN5tPPAXQ XPTDVjlduApQ=; b=WVNW8GbNQ34Pk98sLQcl3HiNVidlADvzpSTFF36QQkY4Pi8 dIjt+u+YOO2smcUhc3jhSHuO5krMeZTuxT1Z8EPJEvlXhl842lcc3CotaCpF1wRC wQd1uOH6gOm2rmQJ1EMGUsr1zIdN5SdQOt6PvHE0tkhK53RhWs4BJH6jb+HY= X-Sasl-enc: 5TSZvYUUe2LhxwKSUFRksqrw09YN9FT+36ddcN7msXnw 1471715279 Received: from pion.local (cpc96954-walt26-2-0-cust843.13-2.cable.virginm.net [82.31.91.76]) by mail.messagingengine.com (Postfix) with ESMTPA id F24EDF296E; Sat, 20 Aug 2016 13:47:58 -0400 (EDT) Subject: Re: svn commit: r304436 - in head: . sys/netinet To: Slawa Olhovchenkov , Ryan Stone References: <201608182259.u7IMx5oW002018@repo.freebsd.org> <4fbc2e1d-3a62-5963-83d5-f9c931503e51@fastmail.net> <3806700d-ed27-7915-4818-c2d64f7b806d@fastmail.net> <6f4449f2-d145-8b49-c3f0-433e8ff4d2a2@fastmail.net> <20160820173050.GQ22212@zxy.spb.ru> Cc: "svn-src-head@freebsd.org" , Ryan Stone , "src-committers@freebsd.org" , "svn-src-all@freebsd.org" , Adrian Chadd From: Bruce Simpson Message-ID: <598d1827-f834-5172-1431-9ecf25eb3b5c@fastmail.net> Date: Sat, 20 Aug 2016 18:47:50 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: <20160820173050.GQ22212@zxy.spb.ru> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 20 Aug 2016 17:48:01 -0000 On 20/08/16 18:30, Slawa Olhovchenkov wrote: > Anyway, don't should relay on the L2 information, you can recive L3 > unicast addressed packets (with alien dst IP address) in L2 broadcas > packet. That is exactly what the egress routers in chapter 6 of my PhD do, but in a very controlled way -- by setting and clearing M_MCAST ! http://hdl.handle.net/10023/8681 In Ch6, ILNPv6 packets are effective being routed, using a multicast next-hop address (as distinct from the destination I-LV, which in turn is distinct from an IPv6 destination -- it just uses the same format.) It's counter-intuitive (and should not happen outside of that constrained scenario), but it has real world applications.