From owner-freebsd-net@freebsd.org Fri Nov 30 10:28:48 2018 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 39C84113DF54 for ; Fri, 30 Nov 2018 10:28:48 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from hz.grosbein.net (hz.grosbein.net [IPv6:2a01:4f8:d12:604::2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "hz.grosbein.net", Issuer "hz.grosbein.net" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 99DB47B007; Fri, 30 Nov 2018 10:28:47 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from eg.sd.rdtc.ru (eg.sd.rdtc.ru [IPv6:2a03:3100:c:13:0:0:0:5]) by hz.grosbein.net (8.15.2/8.15.2) with ESMTPS id wAUASeeo025483 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 30 Nov 2018 11:28:41 +0100 (CET) (envelope-from eugen@grosbein.net) X-Envelope-From: eugen@grosbein.net X-Envelope-To: lev@FreeBSD.org Received: from [10.58.0.4] ([10.58.0.4]) by eg.sd.rdtc.ru (8.15.2/8.15.2) with ESMTPS id wAUASetV098811 (version=TLSv1.2 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT); Fri, 30 Nov 2018 17:28:40 +0700 (+07) (envelope-from eugen@grosbein.net) Subject: Re: IPsec: is it possible to encrypt transit traffic in transport mode? To: Lev Serebryakov , freebsd-net@freebsd.org References: <1519156224.20181130021136@serebryakov.spb.ru> <881323908.20181130123008@serebryakov.spb.ru> From: Eugene Grosbein Message-ID: <9ae35c3c-7af8-e513-7c20-e2d62f2b7b3e@grosbein.net> Date: Fri, 30 Nov 2018 17:28:29 +0700 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: <881323908.20181130123008@serebryakov.spb.ru> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=0.3 required=5.0 tests=BAYES_00,LOCAL_FROM,SPF_PASS autolearn=no autolearn_force=no version=3.4.2 X-Spam-Report: * -2.3 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] * -0.0 SPF_PASS SPF: sender matches SPF record * 2.6 LOCAL_FROM From my domains X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on hz.grosbein.net X-Rspamd-Queue-Id: 99DB47B007 X-Spamd-Result: default: False [-3.68 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; MX_INVALID(0.50)[cached]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[grosbein.net]; RCVD_COUNT_THREE(0.00)[3]; IP_SCORE(-2.17)[ip: (-4.24), ipnet: 2a01:4f8::/29(-3.93), asn: 24940(-2.66), country: DE(-0.02)]; R_SPF_PERMFAIL(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; NEURAL_HAM_SHORT(-0.92)[-0.916,0]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; SUBJECT_ENDS_QUESTION(1.00)[]; ASN(0.00)[asn:24940, ipnet:2a01:4f8::/29, country:DE]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[] X-Rspamd-Server: mx1.freebsd.org X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 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, 30 Nov 2018 10:28:48 -0000 30.11.2018 16:30, Lev Serebryakov wrote: >> It is possible and it is the way I use extensively for long time since very old >> FreeBSD versions having KAME IPSEC and it works with 11.2-STABLE, too. > Eugeny, please note, that your example have SA and SPDs with same > addresses. It works for me too. It doesn't work for me if SAs have addresses > of routers and SPDs have addresses of routed networks. And if SPDs have > routers' addresses, then routed traffic is not encrypted, only host-to-host > (router-to-router) are. Just add gif(4) to the picture.