Date: Mon, 31 Mar 2008 00:00:35 -0700 From: Peter Losher <Peter_Losher@isc.org> To: Garance A Drosihn <drosih@rpi.edu>, hubs@freebsd.org Subject: Re: IPv6 and cvsup servers Message-ID: <47F08C13.20307@isc.org> In-Reply-To: <p06240800c41624e8e526@[128.113.24.47]> References: <p06240800c41624e8e526@[128.113.24.47]>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigF64796A535613D05AAC8CF65 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable (wearing my cvsup4/freebsd.isc.org hat on) Garance A Drosihn wrote: > Some of my friends have been moving their machines into the world of > IPv6. It seems that the cvsup program is old enough that it doesn't > know about IPv6 (true?).=20 Correct cvsup/cvsupd are written in Modula3, which doesn't know anything = about IPv6 (and I am pretty certain that it likely never will) > So they went to use the csup program in > the base system, and while that seems to understand IPv6 just fine, > they couldn't seem to make a connection to any of the official cvsup > servers that they tried via IPv6. >=20 > E.g: "It looks like cvsup4.freebsd.org is refusing connections > on ipv6 despite it having an AAAA record." >=20 > Is this expected? Yes; for now. Hopefully at some point there will be a IPv6-aware &=20 native replacement for cvsupd, and if so, I hope to be the first one=20 running it. (and no I am not interested in 6tunnel'ing; this isn't 2003 anymore) > Given that the servers are all using the cvsup > program, it wouldn't surprise me if they can't handle connections > from IPv6 hosts. But if that's the case, then why are there AAAA > records for the cvsup*.freebsd.org hostnames? Because the mirror *.freebsd.org hostnames are in fact CNAME's; in=20 cvsup4's case it's pointed to freebsd.isc.org, which has the A & AAAA=20 records, and we do offer IPv6 for www5 and ftp4. I don't really see it as a problem at the moment since IPv6 connections=20 via csup to cvsup4 are immediately refused and it retries on the IPv4=20 address which will hopefully just work. (I assume your friends are dual=20 stack and are not IPv6 only?) > (apologies if this was a dumb question, but I haven't done much with > IPv6) No worries. Hope this helps clear this up for you. Best Wishes - Peter --=20 Peter_Losher@isc.org | ISC | OpenPGP 0xE8048D08 | "The bits must flow" --------------enigF64796A535613D05AAC8CF65 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (Darwin) iEYEARECAAYFAkfwjBcACgkQPtVx9OgEjQiDmwCg4/yV8EBtRcU4UGd1aOFIzH3A h/gAmgPv6gTGmdmtBWS7z1nqI1o5q3DC =lx3g -----END PGP SIGNATURE----- --------------enigF64796A535613D05AAC8CF65--
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