From owner-freebsd-net@freebsd.org Wed Aug 29 09:32:06 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 D821D10830A3 for ; Wed, 29 Aug 2018 09:32:05 +0000 (UTC) (envelope-from zarychtam@plan-b.pwste.edu.pl) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 74F29843B4 for ; Wed, 29 Aug 2018 09:32:05 +0000 (UTC) (envelope-from zarychtam@plan-b.pwste.edu.pl) Received: by mailman.ysv.freebsd.org (Postfix) id 3716210830A1; Wed, 29 Aug 2018 09:32:05 +0000 (UTC) Delivered-To: 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 15373108309C for ; Wed, 29 Aug 2018 09:32:05 +0000 (UTC) (envelope-from zarychtam@plan-b.pwste.edu.pl) Received: from plan-b.pwste.edu.pl (plan-b.pwste.edu.pl [IPv6:2001:678:618::40]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "plan-b.pwste.edu.pl", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 93319843B0 for ; 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Wed, 29 Aug 2018 11:31:57 +0200 (CEST) (envelope-from zarychtam) Date: Wed, 29 Aug 2018 11:31:57 +0200 From: Marek Zarychta To: Eugene Grosbein Cc: Dries Michiels , net@freebsd.org Subject: Re: IPv6 Martians Message-ID: <20180829093157.GA42073@plan-b.pwste.edu.pl> References: <5adfc4d1-94d5-da7f-7d98-8dd91ff95b33@plan-b.pwste.edu.pl> <001b01d43f06$40508740$c0f195c0$@gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="uAKRQypu60I7Lcqm" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 Aug 2018 09:32:06 -0000 --uAKRQypu60I7Lcqm Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Aug 29, 2018 at 03:01:56AM +0700, Eugene Grosbein wrote: > 29.08.2018 2:35, Dries Michiels wrote: >=20 > >> IPv6 Martians are blocked by forwarding code in 11-STABLE, but all thi= s noise > >> fills kernel message buffer: > >> > >> cannot forward from :: to 2001:xyz:zxy::f00b nxt 58 received on vlan5 = cannot > >> forward from :: to 2001:xyz:zxy::f00b nxt 58 received on vlan5 cannot > >> forward from :: to 2001:xyz:zxy::f00b nxt 58 received on vlan5 cannot > >> forward src fe80:10::yxz:a50f:fcb6:5f1e, dst 2001:xyz:zxy::f00b, nxt 5= 8, rcvif > >> vlan4, outif vlan2 cannot forward src fe80:10::yxz:a50f:fcb6:5f1e, dst > >> 2001:xyz:zxy::f00b, nxt 58, rcvif vlan4, outif vlan2 cannot forward src > >> fe80:10::yxz:a50f:fc89:e1a0, dst 2001:xyz:zxy::f00b, nxt 58, rcvif vla= n4, outif > >> vlan2 cannot forward src fe80:10::yxz:a50f:fc89:e1a0, dst > >> 2001:xyz:zxy::f00b, nxt 58, rcvif vlan4, outif vlan2 cannot forward src > >> fe80:10::268a:7ff:feeb:d250, dst 2001:xyz:zxy::d1, nxt 17, rcvif vlan4= , outif > >> vlan2 cannot forward src fe80:10::yxz:a50f:fc8a:9024, dst > >> 2001:xyz:zxy::f00b, nxt 58, rcvif vlan4, outif vlan2 cannot forward src > >> fe80:10::yxz:a50f:fc8a:9024, dst 2001:xyz:zxy::f00b, nxt 58, rcvif vla= n4, outif > >> vlan2 cannot forward src fe80:10::1, dst 2001:xyz:zxy::f00b, nxt 58, r= cvif > >> vlan4, outif vlan4 cannot forward src fe80:10::1, dst 2001:xyz:zxy::f0= 0b, nxt > >> 58, rcvif vlan4, outif vlan4 cannot forward src fe80:10::250:56ff:fe86= :1b36, > >> dst 2001:xyz:zxy::d1, nxt 17, rcvif vlan4, outif vlan2 cannot forward = src > >> fe80:10::yxz:a50f:fc90:9d4, dst 2001:xyz:zxy::f00b, nxt 58, rcvif vlan= 4, outif > >> vlan2 cannot forward src fe80:10::yxz:a50f:fc90:9d4, dst 2001:xyz:zxy:= :f00b, > >> nxt 58, rcvif vlan4, outif vlan2 cannot forward src > >> fe80:10::yxz:a50f:fc89:e1a0, dst 2001:xyz:zxy::f00b, nxt 58, rcvif vla= n4, outif > >> vlan2 cannot forward src fe80:10::yxz:a50f:fc89:e1a0, dst > >> 2001:xyz:zxy::f00b, nxt 58, rcvif vlan4, outif vlan2 cannot forward src > >> fe80:10::yxz:a50f:fc89:e1a0, dst 2001:xyz:zxy::f00b, nxt 58, rcvif vla= n4, outif > >> vlan2 > >> > >> Dear subscribes, could you please prompt how to get rid of this noise? > >> So far I have not found appropriate sysctl for disabling this messages. > >=20 > > I can confirm the same issue on stable-11.=20 > > I just ignored it as I thought it was a badly coded client. > > Seems there is something else going on then. >=20 > As workaround, use sysctl net.inet6.ip6.log_interval=3D2147483647 > This means "log this once per 68 years". >=20 Thank you for the workaround. --=20 Marek Zarychta --uAKRQypu60I7Lcqm Content-Type: application/pgp-signature; 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