From owner-freebsd-net@freebsd.org Tue Jan 5 11:58:27 2021 Return-Path: Delivered-To: freebsd-net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 07D5F4E298E for ; Tue, 5 Jan 2021 11:58:27 +0000 (UTC) (envelope-from lutz@donnerhacke.de) Received: from annwfn.iks-jena.de (annwfn.iks-jena.de [IPv6:2001:4bd8::19]) (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 4D99xY701xz3sHw for ; Tue, 5 Jan 2021 11:58:25 +0000 (UTC) (envelope-from lutz@donnerhacke.de) X-SMTP-Sender: IPv6:2001:4bd8:59:1:172:27:107:102 Received: from lyoness (lyoness.intern.iks-service.de [IPv6:2001:4bd8:59:1:172:27:107:102]) by annwfn.iks-jena.de (8.15.2/8.15.2) with ESMTP id 105BwN6H000480 for ; Tue, 5 Jan 2021 12:58:23 +0100 From: "Lutz Donnerhacke" To: References: <20210105031528.GA91534@admin.sibptus.ru> <00a101d6e33b$96edf0c0$c4c9d240$@donnerhacke.de> <20210105104650.GA7688@admin.sibptus.ru> In-Reply-To: <20210105104650.GA7688@admin.sibptus.ru> Subject: AW: FreeBSD does not reply to IPv6 Neighbor Solicitations Date: Tue, 5 Jan 2021 12:58:23 +0100 Message-ID: <00b601d6e35a$115a4a20$340ede60$@donnerhacke.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQDbmY3LphJigrQeK8bKIFQJYVZsAAGAW9ZbAuyNYN4BOBzdVgLEnSQcq8wyugA= Content-Language: de X-Rspamd-Queue-Id: 4D99xY701xz3sHw X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of lutz@donnerhacke.de has no SPF policy when checking 2001:4bd8::19) smtp.mailfrom=lutz@donnerhacke.de X-Spamd-Result: default: False [-2.10 / 15.00]; RCVD_TLS_LAST(0.00)[]; ARC_NA(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; RBL_DBL_DONT_QUERY_IPS(0.00)[2001:4bd8::19:from]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; TO_DN_NONE(0.00)[]; AUTH_NA(1.00)[]; RCPT_COUNT_ONE(0.00)[1]; SPAMHAUS_ZRD(0.00)[2001:4bd8::19:from:127.0.2.255]; DMARC_NA(0.00)[donnerhacke.de]; NEURAL_HAM_SHORT(-1.00)[-0.999]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_SPF_NA(0.00)[no SPF record]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:15725, ipnet:2001:4bd8::/29, country:DE]; RCVD_COUNT_TWO(0.00)[2]; MAILMAN_DEST(0.00)[freebsd-net] X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Jan 2021 11:58:27 -0000 > > May you be able to capture the icmp6 traffic of this interface with > > respect to ND? I'm really interested in seeing, that the box does > > not respond to a given NS query. > > Here you are http://admin.sibptus.ru/~vas/nd1.pcapng The device, where the capture was taken does not respond tot he NS packet. This might be caused by: a) the device has a different configured IP address, than requested b) the network card does not listen to the multicast group, which is used by the request (you see it only due to the promisc mode of the capture). But this is unlikely (due to the promisc mode) c) your system is broken