Date: Sat, 09 Jan 2010 10:56:31 +0000 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: Gary Kline <kline@thought.org> Cc: Bogdan Webb <bogdan@pgn.ro>, Steve Bertrand <steve@ibctech.ca>, freebsd-questions@freebsd.org Subject: Re: FreeBSD ipv6 rc.conf settings issue Message-ID: <4B4860DF.2010904@infracaninophile.co.uk> In-Reply-To: <20100109074715.GC83472@thought.org> References: <c81e6afd1001070059h698fc0d2g629977802276c1b9@mail.gmail.com> <4B45F643.9000809@ibctech.ca> <4B46021F.906@infracaninophile.co.uk> <4B4604CF.2040404@ibctech.ca> <4B460815.1040306@infracaninophile.co.uk> <4B4614C6.8090601@ibctech.ca> <20100109074715.GC83472@thought.org>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig37E1F44CDDD50C13C6135997 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Gary Kline wrote: =20 > This caught my interest this morning so I set up a commented-out trial = in > /etc/rc.d for my ipv6 entry; the one I had in my database /etc/namedb/*= files > blew my connection sky-high recently. >=20 > Does this seem plausible: >=20 >=20 > # > ## ipv6 config > # >=20 > # ipv6_enable=3D"YES" > # ipv6_defaultrouter=3D"2002:d1b4:d5d2::" > # ipv6_default_interface=3D"em0" > # ipv6_gateway_enable=3D"YES" >=20 > given that my Adress record is 209.180.213.210 ? >=20 > tia, gents, So you're using 6to4 tunnelling as described in stf(4)? That's a quite different setup to what has been discussed previously in this thread.=20 I think 6to4 is, if not deprecated, certainly not the normal way of getti= ng IPv6 connectivity nowadays. Generally you'ld get an address space alloca= tion from your ISP, or failing that, a tunnel broker like Hurricane Electric[*= ]. Anyhow, as stf(4) says, you need to encode your IPv4 address as hex in th= e 6to4 address -- that looks correct: % perl -e 'map { printf "%x\n", $_ } split( /\./, shift );' 209.180.213.2= 10 d1 b4 d5 d2 However 2002:d1b4:d5d2:: is *your* network address, and having it as the = default router sounds wrong to me. You need to assign addresses from tha= t range to your hosts -- which you can do automatically by enabling rtadvd(= 8) on your gateway machine and rtsold(8) on your clients. Also, to use 6to4= you need to create a 'stf0' interface and make that the ipv6_default_inte= rface. This is all independent of setting up IPv6 related items in your DNS. Ge= t the IPv6 connectivity working first -- use ping6 and traceroute6 with IPv= 6 numbers to confirm connectivity, and then worry about DNS settings. Cheers, Matthew [*] Which is pretty crazy given that the prediction is IPv4 space is going to run out around 2012[+]. All of the major ISPs and NSPs really should be providing IPv6 natively by now. [+] Potential for another IT-feeding-frenzy-panic scenario like the run up to Y2K. Make sure IPv6 is on your CV... --=20 Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate Kent, CT11 9PW --------------enig37E1F44CDDD50C13C6135997 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (FreeBSD) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEAREIAAYFAktIYOUACgkQ8Mjk52CukIwgiwCfVHTYcnlZXwHf6uX5q5DOzG2K FIoAn0eIxqoemMxU2sQ4pUBDLR96E713 =sS3F -----END PGP SIGNATURE----- --------------enig37E1F44CDDD50C13C6135997--
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