[182405] in North American Network Operators' Group

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Re: Remember "Internet-In-A-Box"?

daemon@ATHENA.MIT.EDU (Owen DeLong)
Thu Jul 16 03:40:14 2015

X-Original-To: nanog@nanog.org
From: Owen DeLong <owen@delong.com>
In-Reply-To: <fwhjbolfea8jqx51t044ddkq.1437032040124@email.android.com>
Date: Thu, 16 Jul 2015 00:39:55 -0700
To: Seth Mos <seth.mos@dds.nl>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org


> On Jul 16, 2015, at 00:34 , Seth Mos <seth.mos@dds.nl> wrote:
>=20
> So, if i get this right. The problem is not quite as bad to fix.
>=20
> It just needs a dnscache/dnsproxy process bound to the ipv4 localhost =
that uses the ipv6 dns server.
>=20
> Basically what dnsmasq does. Biggest problem is that it wouldn't =
follow autoconfigure and thus require manual intervention. That is a no =
go for dynamic networks of any sort.

It=E2=80=99s a fairly safe bet that anything that involves a mobile OS =
is most likely a dynamic network of some sort.

Owen

>=20
> Cheers
> -------- Oorspronkelijk bericht --------
> Van: Owen DeLong <owen@delong.com>
> Datum: 16-07-2015 08:51 (GMT+01:00)
> Aan: Mark Andrews <marka@isc.org>
> Cc: nanog@nanog.org
> Onderwerp: Re: Remember "Internet-In-A-Box"?
>=20
> > On Jul 15, 2015, at 19:32 , Mark Andrews <marka@isc.org> wrote:
> >=20
> >=20
> > In message <55A682E6.1050607@matthew.at>, Matthew Kaufman writes:
> >> On 7/14/2015 11:22 PM, Mark Andrews wrote:
> >>>=20
> >>> Yet I can take a Windows XP box.  Tell it to enable IPv6 and it
> >>> just works.  Everything that a node needed existed when Windows XP
> >>> was released.  The last 15 years has been waiting for ISP's and =
CPE
> >>> vendors to deliver IPv6 as a product.  This is not to say that =
every
> >>> vendor deployed all the parts of the protocol properly but they
> >>> existed.
> >>=20
> >> This is only true for dual-stacked networks. I just tried to set up =
an=20
> >> IPv6-only WiFi network at my house recently, and it was a total =
fail due=20
> >> to non-implementation of relatively new standards... starting with =
the=20
> >> fact that my Juniper SRX doesn't run a load new enough to include =
RDNSS=20
> >> information in RAs, and some of the devices I wanted to test with=20=

> >> (Android tablets) won't do DHCPv6.
> >=20
> > You can blame the religious zealots that insisted that everything
> > DHCP does has to also be done via RA's.  This means that everyone
> > has to implement everything twice.  Something Google should have
> > realised when they releases Android.
>=20
> Actually, no.
>=20
> In this case, the problem isn=E2=80=99t the things RA does, but the =
things his
> implementation of RA doesn=E2=80=99t do (RDNSS).
>=20
> Without RDNSS, android would still be brain-damaged and unable
> to figure out what an IPv6 nameserver is. The only way it would be
> able to talk to the IPv6 internet was if it got nameservers from =
DHCP4.
>=20
> At least with RDNSS, a thin lightweight client can get nameservers on =
IPv6.
> At least with RDNSS, a network administrator that doesn=E2=80=99t want =
to have
> to do DHCPv6 doesn=E2=80=99t have to in most cases.
>=20
> >> The XP box is in an even worse situation if you try to run it on a=20=

> >> v6-only network.
> >=20
> > Which is fixable with a third party DHCPv6 client / manual =
configuration
> > of the nameservers.
>=20
> Nope=E2=80=A6 XP=E2=80=99s resolver is utterly and completely =
incapable of transmitting
> an IPv6 DNS request.
>=20
> You _HAVE_ to have an IPv4 resolver reachable to the box or forego any
> idea of using DNS.
>=20
> Owen
>=20


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