Date: Wed, 13 Mar 2013 13:52:54 +0000 From: Schrodinger <schrodinger@konundrum.org> To: freebsd-net@freebsd.org Subject: Re: ipv6 default router Operation not permitted Message-ID: <20130313135253.GA18992@defiant.konundrum.org> In-Reply-To: <D38E17AB-86AA-40B5-BFD6-A092DFAA1660@my.gd> References: <20130312225018.GA13589@defiant.konundrum.org> <3ABB5AED-DEA9-42F6-82A1-FEA9E8BBBDCF@my.gd> <20130313091727.GA17859@defiant.konundrum.org> <201303131227.57751.Mark.Martinec%2Bfreebsd@ijs.si> <20130313125221.GD17859@defiant.konundrum.org> <B58DABE0-BB82-412D-82AB-C7C9AFD82F12@my.gd> <20130313131016.GE17859@defiant.konundrum.org> <D38E17AB-86AA-40B5-BFD6-A092DFAA1660@my.gd>
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--7JfCtLOvnd9MIVvH Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Damien,=20 I appreciate your replies very much, but I'm a subscriber so just reply to the mailing list. Thanks. On 2013/03/13 14:19, Fleuriot Damien wrote: [SNARF] >=20 >=20 > These are indeed correct, thanks for clarifying. >=20 I thought that's what I said in my first email ;) Sorry for any confusion. >=20 > Find below the config I'm using on an old OVH box. > Said config might be outdated now (as per OVH's guide on setting up IPv6 = [1]) , however that was at the time the only way to get things working prop= erly. >=20 > rc.conf > =3D=3D=3D > #Range IPv6: 2001:41D0:2:613b::/64 > ipv6_enable=3D"YES" > ipv6_ifconfig_re0=3D"fe80::21c:c0ff:fef3:31fa/64 scopeid 0x1" > ipv6_ifconfig_re0_alias0=3D"2001:41d0:2:613b::dead:beef/56" > ipv6_defaultrouter=3D"2001:41d0:2:61ff:ff:ff:ff:ff" > =3D=3D=3D >=20 You have /56 and this is what I believe to be the incorrect way to get this to Just Work. I think this assume that anyone else in this /56 is in the same layer two segment as you....=20 >=20 > routing table > =3D=3D=3D [SNARF] > =3D=3D=3D >=20 >=20 >=20 > Notice that said config actually works: > =3D=3D=3D > $ ping6 www.google.com > PING6(56=3D40+8+8 bytes) 2001:41d0:2:613b::dead:beef --> 2a00:1450:4007:8= 04::1014 > 16 bytes from 2a00:1450:4007:804::1014, icmp_seq=3D0 hlim=3D57 time=3D4.4= 61 ms > 16 bytes from 2a00:1450:4007:804::1014, icmp_seq=3D1 hlim=3D57 time=3D4.4= 62 ms > 16 bytes from 2a00:1450:4007:804::1014, icmp_seq=3D2 hlim=3D57 time=3D4.4= 05 ms > ^C > --- www.google.com ping6 statistics --- > 3 packets transmitted, 3 packets received, 0.0% packet loss > round-trip min/avg/max/std-dev =3D 4.405/4.443/4.462/0.027 ms > =3D=3D=3D >=20 > Either way, you might want to have a look at OVH's guide [1] but in my ow= n case, using a /56 was, at the time, the only way to get things working in= a clean way. >=20 > [1] http://help.ovh.com/Ipv4Ipv6#link10 >=20 I read this, I made sure to read this and then I read it a second time. No where does it indicate the use of a /56. I am in the process of a migration from an old OVH server to a new OVH server. My old box uses the /56 prefix length "fix" but based on the documentation this is incorrect and IMO this assumes that anyone else in the /56 is in the=20 same segment as me and if they are using /64 - well, There Be Dragons. Also from the information I have received, router advertisements may be turned off in the future, my host should simply Neighbour Solicit for the global scope unicast address of my default gateway. And as pointed out in previous emails without ACCEPT_RTADV for re0 - FreeBSD does not perform this action. So again, what is the correct way ? I think this is a debate of IPv6 Protocol vs. IPv6 Policy vs. Network architecture. I'll go and get Tina Turner. You get Masterblaster and we'll meet in Thunderdome. C. --=20 +---------------------------------------------------------------+ Quidquid latine dictum sit, altum sonatur. MSN: schro5@hotmail.com ICQ: 112562229 GPG: http://www.konundrum.org/schro.asc --7JfCtLOvnd9MIVvH Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) iQIcBAEBCgAGBQJRQIS0AAoJEBBi7cjNKnTj/EIP/1qF1J+UxUpbVEwv4kzA7hcR 6JNL2wR+k9XrB7LhtgtO+PXknhKS2gY5R0T4VzM1+rGAVhi7K6eVcqmV5zWnIntZ 49Zs2t8g6bU2hpZ8gwIDeG+5f7EJhwOs0IKjOSZjuENRzWXk8QYP4sI96DUtsUHA vn3Du/NDehGH+Y/Bb0QGGdqssEoeLWpE7qXLgytonpM6E3L9PV2XqbQzgFcC2iSv jc7bWO8KwehctUPqMaJoHp8RKkMKA+TNCkXpPLVU7UthFoLt/iSVgE83y+G6o/YA jHVVeUG1mTnz/aNHcquJvXJMpzXd9PA51+m+gz+mkprcFxr7gGeaQSJls6KHwXO5 t1GrkQSzNfTg6wu0XbrzEJ5G6j6LiiE1JhXtBBI6+p6cMDQ/dedpanDGUV8fIoug NY2N4LqjAFSj/KOZUuSUohv3quUf98W3IWikgvRJ9dVT+JbtyO9ByFQXxin3VGYc AZ35/TQUd6ssnv/Yj/Jot5fRyMIiNSwFEnFjucvEJI0CeRlydZgWQ9tyhRWUt1AN wMuI0oV3a1DT1faJVsbB8z7dKn5/CqRADQoYJld86YuZaApa1dCc8sib0ImVl2oG iDwfOvX19sdLpc1MtR8sABd8PgEReYcTkpYYlmF/u3C2ZadvfwkiRYH8plrlOjNw d2V3Seo9Kno07WbqgDpU =CN0T -----END PGP SIGNATURE----- --7JfCtLOvnd9MIVvH--
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