From owner-freebsd-net@freebsd.org Mon Dec 19 18:46:22 2016 Return-Path: Delivered-To: freebsd-net@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 3F2B6C885C0 for ; Mon, 19 Dec 2016 18:46:22 +0000 (UTC) (envelope-from alarig@swordarmor.fr) Received: from kaiminus.swordarmor.fr (kaiminus.swordarmor.fr [IPv6:2a00:5884:8200:15::1]) (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 042921397 for ; Mon, 19 Dec 2016 18:46:21 +0000 (UTC) (envelope-from alarig@swordarmor.fr) Received: from kaiminus (localhost [IPv6:::1]) (using TLSv1.2 with cipher ECDHE-RSA-CHACHA20-POLY1305 (256/256 bits)) (No client certificate requested) by kaiminus.swordarmor.fr (Postfix) with ESMTPS id AC4D7892C5 for ; Mon, 19 Dec 2016 19:46:17 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=swordarmor.fr; s=default; t=1482173177; bh=fXNzz4f91tp2w3wf2dX4aEJHNaZSnMb9igHkaHgfcMk=; h=Date:From:To:Subject; b=D6KdpTFenjCY6ACrb9Aru1EaVOs1ph1U+gWOhEWEdLTpGVtnRfRxkFw3TKU7+LQnC bkh8vmIHYdSOZpUrBUZlerthmbHgKg1Ku7YS6tgtCNI/hRIN/8+zL7zgyNOn6Mgj8L a3M/JDOGrvA6lNqKd227UWC+rt8CBR17bveeJzU8= Date: Mon, 19 Dec 2016 19:46:17 +0100 From: Alarig Le Lay To: freebsd-net@freebsd.org Subject: Avoid using RFC3927 outside of the link Message-ID: <20161219184617.7yph7isgtgjy4mja@kaiminus> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="bjfcewmcfzurcg6f" Content-Disposition: inline User-Agent: NeoMutt/20161104 (1.7.1) X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Dec 2016 18:46:22 -0000 --bjfcewmcfzurcg6f Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, I have a router that is mutli-homed with BGP. One of my peers is using an RFC3927 address for the connection. If I traceroute to host behind that route where we use a route via this peer to reply, the ICMP reply display that link-local IP: 1. AS12876 195-154-86-1.rev.poneytelecom.eu (195.154.86.1) 0.0% 10= 0.9 0.8 0.6 1.1 0.0 2. AS12876 a9k2-49e-s46-3.dc3.poneytelecom.eu (195.154.1.86) 0.0% 10= 0.8 1.1 0.7 2.2 0.5 3. AS12876 pni-th2-a9k2.th2.poneytelecom.eu (195.154.1.75) 0.0% 10= 1.2 1.5 1.1 3.5 0.6 4. AS??? equinix-th2.quantic-telecom.net (195.42.144.192) 0.0% 10= 1.1 1.0 0.9 1.2 0.0 5. AS198507185.132.75.33 0.0% 10= 7.3 7.4 7.2 7.9 0.0 6. AS??? 169.254.1.2 0.0% 10= 7.6 7.6 7.4 7.9 0.0 7. AS204092kaiminus.swordarmor.fr (89.234.186.26) 0.0% 10= 8.1 11.4 7.8 41.5 10.6 Is it possible to avoid this behaviour and reply with the public IP (89.234.186.1) instead? What I am looking for is an equivalent of `ip addr change 169.254.1.2/30 scope link` on Linux. Thanks, --=20 alarig --bjfcewmcfzurcg6f Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBCAAGBQJYWCrzAAoJEK84SsFrICuId5EIALxuZQft8SOs/wWTnUEkReDm +OtfhtJFpv3E4iEa2gnzIx7Dnl+A+8m1IpQ4Uzba3+j+qrYlOkG5uXnEaWpgTeOg QCTBf7jDDKgmx5c1FJKcmcTH9m7TeYSOp6S7MoTSISPHpbHxcaV4LyYYVQEVrl6V IaZ6VZffMD4oviA4HMI6eIEaNBbgXPfscDuOwg+nGuOEUroBNEYq/S5luAKqLBl7 dkYbLnG6oCo+kFXgbzm2D4LT2TQ1aAhP5/DXA2B0vCxqPSu/8Fxa9yhFETRaGnYx wtB/HpWUMiNL61v3/juJHuzIbKVwARw0UIZZjPrjTUbvZ/G3L/HYZm3yLDvA4x8= =xY3w -----END PGP SIGNATURE----- --bjfcewmcfzurcg6f--