From owner-freebsd-questions@freebsd.org Thu Mar 23 17:37:52 2017 Return-Path: Delivered-To: freebsd-questions@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 21398D1AA9D for ; Thu, 23 Mar 2017 17:37:52 +0000 (UTC) (envelope-from matthew@FreeBSD.org) Received: from smtp.infracaninophile.co.uk (smtp.infracaninophile.co.uk [IPv6:2001:8b0:151:1:c4ea:bd49:619b:6cb3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "smtp.infracaninophile.co.uk", Issuer "infracaninophile.co.uk" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id A96D815B3 for ; Thu, 23 Mar 2017 17:37:51 +0000 (UTC) (envelope-from matthew@FreeBSD.org) Received: from zero-gravitas.local (unknown [85.199.232.226]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: m.seaman@infracaninophile.co.uk) by smtp.infracaninophile.co.uk (Postfix) with ESMTPSA id C404D10DDD for ; Thu, 23 Mar 2017 17:37:43 +0000 (UTC) Authentication-Results: smtp.infracaninophile.co.uk; dmarc=none header.from=FreeBSD.org Authentication-Results: smtp.infracaninophile.co.uk/C404D10DDD; dkim=none; dkim-atps=neutral Subject: Re: Can anyone see my posts to these lists? To: freebsd-questions@freebsd.org References: <58D40146.90204@sneakertech.com> From: Matthew Seaman Message-ID: <248f7494-8312-a55d-5110-ae246b9869f7@FreeBSD.org> Date: Thu, 23 Mar 2017 17:37:36 +0000 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: <58D40146.90204@sneakertech.com> Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="NmPC4fgf6UuB4OdqCcM4OlVSo0WFxDwb1" X-Spam-Status: No, score=0.9 required=5.0 tests=BAYES_00,RCVD_IN_RP_RNBL, RDNS_NONE,SPF_SOFTFAIL autolearn=no autolearn_force=no version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on smtp.infracaninophile.co.uk X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 23 Mar 2017 17:37:52 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --NmPC4fgf6UuB4OdqCcM4OlVSo0WFxDwb1 Content-Type: multipart/mixed; boundary="kk7Mj3vIgsQNfm2nForOoAARfoo3SQF9P"; protected-headers="v1" From: Matthew Seaman To: freebsd-questions@freebsd.org Message-ID: <248f7494-8312-a55d-5110-ae246b9869f7@FreeBSD.org> Subject: Re: Can anyone see my posts to these lists? References: <58D40146.90204@sneakertech.com> In-Reply-To: <58D40146.90204@sneakertech.com> --kk7Mj3vIgsQNfm2nForOoAARfoo3SQF9P Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable On 2017/03/23 17:09, Quartz wrote: > I've tried posting twice now to -net and again to -questions. According= > to lists.freebsd.org my posts are going through and show up in the > archive, but I've yet to get a single response to any of them. Can > anyone actually see this message I'm typing now? You are coming through loud and clear. I think the lack of answers is possibly due to people not really getting what you're asking about. Hmmm... Firewall rules to drop multicast traffic shouldn't be too difficult. Not sure about matching 6to4 addresses. However in each case the real question is 'should you filter these out?' To which the only possible answer is "maybe". Multicast traffic can be useful, but lots of networks are not configured to route it properly, so it tends to get dumped out your default route and never bother your hosts at all. If you know you need multicast then you will want to add appropriate filter rules. If you don't know you need it, then you probably don't need to worry about it. As for 6to4 traffic: don't bother with 6to4 locally unless you have a specific problem to solve. Most networkable things will cope with IPv6 nowadays, and if your network is IPv6 enabled, just configure everything on it to use IPv6 natively and don't bother with 6to4 on your router. Otherwise (if you're stuck in the past), stick to IPv4 only and turn off IPv6 support. As for remote contacts using 6to4? That's their problem, which will not affect you and which you do not need to worry about. Cheers, Matthew --kk7Mj3vIgsQNfm2nForOoAARfoo3SQF9P-- --NmPC4fgf6UuB4OdqCcM4OlVSo0WFxDwb1 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Comment: GPGTools - https://gpgtools.org iQJ8BAEBCgBmBQJY1AflXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXQxOUYxNTRFQ0JGMTEyRTUwNTQ0RTNGMzAw MDUxM0YxMEUwQTlFNEU3AAoJEABRPxDgqeTnGTAP/RuYAjAX5FlEmuiBA4WlrSjp yugBdqsF6DfjmnN9JITT6BiBEEcVYPCGweFOkIJnLgRpaspRmHB5kTXsRIHonEtj iWoo5704CD5UYWwdnVBN8fWe+UQcXb0FSOfFZ7NF2643gYuioQ2Xt3BOUYrQeoI2 6tjDHPUr+NeETLnp9o0g/58EA6FcOdlfolUIQ1uRbmyc3WAbS0k7yRZedZzouu9K LOZpQT1ghl4o9ZOQNx3rsAbZa36v+OuuLypk/e/Cgk1NKL+ZktL6tJ+b4ZDnNNsf LGcXIbb1iuoW8eYqRPwa8J3V/G8FoF6AqPfYJns5TVbnbyoZyWnZhPsXSpH3E+I8 vBtonM+QR31Fk42TMoWtDLpJqKwYHxHMunMhEVrKVBXiCci1DZaX/Aiq7cJ42Fm9 fWIHRdjg7qFDCqHZqpT37WUGQ6KnUYGZFfJWS0xpsYuzuZYc1fcK7iwJRFSg9paY HNmIRIssg9IkAjgj2hcKGHuXQRdD/uI5a/oGawYx1NyvEkbGRzh4TB31Tz1kXznh ODaN5u4n9V6V+OXOMQC4Ka6bGlV6AD3jLInHTqt1gJI7TBJzcnb15qHTmyCdP7Y7 hQSDeIr0Fx53/RNjot4gHryA3+gnZtozmHe2Ts99IfyumDz+GrrFGkW0vwtvF1FL 8/7Aw2VP4boFonBgazse =aerN -----END PGP SIGNATURE----- --NmPC4fgf6UuB4OdqCcM4OlVSo0WFxDwb1--