From owner-freebsd-net@freebsd.org Tue Jan 5 03:20:51 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 ACC954D68F5 for ; Tue, 5 Jan 2021 03:20:51 +0000 (UTC) (envelope-from vas@sibptus.ru) Received: from admin.sibptus.ru (admin.sibptus.ru [IPv6:2001:19f0:5001:21dc::10]) (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 4D8ySM1zWFz4t4H for ; Tue, 5 Jan 2021 03:20:50 +0000 (UTC) (envelope-from vas@sibptus.ru) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sibptus.ru; s=20181118; h=In-Reply-To:Message-ID:Subject:To:From:Date; bh=WhyKdv7UsBbAYVP7uVCqxRMN3Ut6RQ9BPIsrHS8sw2Y=; b=KeG0xP0fs6k6R9FM9QQRGcSqNU iubOB1mU8nJ3zr+F96a+MAbSLcuDAKhgatnfYSxiu/5yYZog2pBMJNdo1A+nBsrks3VRP+n8RHlGj qQU1UcnNAOM+crdnmxeBvMfqPYmQO7EIg6bMQ5sm1AWqUD6EUqnB3efGCeqFvFPZjyHM=; Received: from vas by admin.sibptus.ru with local (Exim 4.94 (FreeBSD)) (envelope-from ) id 1kwctt-000OQ4-Vx for freebsd-net@freebsd.org; Tue, 05 Jan 2021 10:20:50 +0700 Date: Tue, 5 Jan 2021 10:20:49 +0700 From: Victor Sudakov To: freebsd-net@freebsd.org Subject: Re: FreeBSD does not reply to IPv6 Neighbor Solicitations Message-ID: <20210105032049.GB91534@admin.sibptus.ru> References: <006901d6e2a4$4d9d80d0$e8d88270$@donnerhacke.de> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="b5gNqxB1S1yM7hjW" Content-Disposition: inline In-Reply-To: <006901d6e2a4$4d9d80d0$e8d88270$@donnerhacke.de> X-PGP-Key: http://admin.sibptus.ru/~vas/ X-PGP-Fingerprint: 10E3 1171 1273 E007 C2E9 3532 0DA4 F259 9B5E C634 X-Rspamd-Queue-Id: 4D8ySM1zWFz4t4H X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org; dkim=pass header.d=sibptus.ru header.s=20181118 header.b=KeG0xP0f; dmarc=pass (policy=none) header.from=sibptus.ru; spf=pass (mx1.freebsd.org: domain of vas@sibptus.ru designates 2001:19f0:5001:21dc::10 as permitted sender) smtp.mailfrom=vas@sibptus.ru X-Spamd-Result: default: False [-6.10 / 15.00]; ARC_NA(0.00)[]; RBL_DBL_DONT_QUERY_IPS(0.00)[2001:19f0:5001:21dc::10:from]; R_DKIM_ALLOW(-0.20)[sibptus.ru:s=20181118]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+mx:c]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.20)[multipart/signed,text/plain]; TO_DN_NONE(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; RCPT_COUNT_ONE(0.00)[1]; SPAMHAUS_ZRD(0.00)[2001:19f0:5001:21dc::10:from:127.0.2.255]; DKIM_TRACE(0.00)[sibptus.ru:+]; DMARC_POLICY_ALLOW(-0.50)[sibptus.ru,none]; NEURAL_HAM_SHORT(-1.00)[-1.000]; SIGNED_PGP(-2.00)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:20473, ipnet:2001:19f0:5000::/38, country:US]; 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 03:20:51 -0000 --b5gNqxB1S1yM7hjW Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Lutz Donnerhacke wrote: > > Victor Sudakov wrote: > > > Dear Colleagues, > > > > > > Why could it be that a FreeBSD 12.2 host does not reply to ICMPv6 > > > Neighbor Solicitations from the router? > >=20 > > Any ideas please? >=20 > Thank you for pointing this out. > I do have an similar effect, after upgrading, and you point me to a good > direction. > I'll investigate and report back. Problem is, I cannot reproduce it reliably. Sometimes everything "just work= s." Maybe the absence of traffic causes this, I really don't know. --=20 Victor Sudakov, VAS4-RIPE, VAS47-RIPN 2:5005/49@fidonet http://vas.tomsk.ru/ --b5gNqxB1S1yM7hjW Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEcBAEBAgAGBQJf89sRAAoJEA2k8lmbXsY0Z8sIAIHzaExzxIzyYCUIk+sfgt61 2EbaN777nKFO9ocqR+xPDNKs0vNiyTBJ1v6jAytj3PDxVIx5AKC3ZjlybX/O+bD+ ZzdZ0+BQXd4mE0N4NuMIdQggswng4n5Fn/6tgJWs++jwu+jv5RGVWWET2kTR6pyJ HeeU7chJhFJQ931QY0Fwi8qLPQO8WF8crEt/gs/rL2RlfvtBaY7mQysCR1uUudf1 A6RYOSmhSZHwxPMLR4DUzd6z9TN2bt0BCwzfVsN4vTEyf3Du3rfVBu3oFFhr4O2p Tv8i5owQwf3Erl0OyqhzykAbnIZ9D7tABExAigb73/hAyZSl5uP7X/2Qv8HBFx8= =ek+c -----END PGP SIGNATURE----- --b5gNqxB1S1yM7hjW--