Re: [v6ops] draft-ietf-v6ops-64share

Vízdal Aleš <ales.vizdal@t-mobile.cz> Wed, 30 January 2013 10:49 UTC

Return-Path: <ales.vizdal@t-mobile.cz>
X-Original-To: v6ops@ietfa.amsl.com
Delivered-To: v6ops@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3454121F876E for <v6ops@ietfa.amsl.com>; Wed, 30 Jan 2013 02:49:47 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.875
X-Spam-Level:
X-Spam-Status: No, score=-1.875 tagged_above=-999 required=5 tests=[AWL=0.075, BAYES_00=-2.599, HELO_EQ_CZ=0.445, HOST_EQ_CZ=0.904, MIME_8BIT_HEADER=0.3, RCVD_IN_DNSWL_LOW=-1]
Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id aGfkxEvB4Ab0 for <v6ops@ietfa.amsl.com>; Wed, 30 Jan 2013 02:49:46 -0800 (PST)
Received: from mailhub1.t-mobile.cz (mailhub1.t-mobile.cz [62.141.0.149]) by ietfa.amsl.com (Postfix) with ESMTP id 71D3921F84F9 for <v6ops@ietf.org>; Wed, 30 Jan 2013 02:49:46 -0800 (PST)
Received: from srvhk503.rdm.cz (unknown [10.254.92.81]) by mailhub1.t-mobile.cz (Postfix) with ESMTP id D74C928581D; Wed, 30 Jan 2013 11:49:44 +0100 (CET)
Received: from SRVHKE02.rdm.cz ([fe80::94ce:8456:f6fa:86a8]) by srvhk503.rdm.cz ([fe80::a0bc:fdcc:adf9:5f66%12]) with mapi; Wed, 30 Jan 2013 11:49:44 +0100
From: Vízdal Aleš <ales.vizdal@t-mobile.cz>
To: Alexandru Petrescu <alexandru.petrescu@gmail.com>, "v6ops@ietf.org" <v6ops@ietf.org>
Date: Wed, 30 Jan 2013 11:50:11 +0100
Thread-Topic: [v6ops] draft-ietf-v6ops-64share
Thread-Index: Ac3+PJSj1oCM9HovS3GkRXJ1RwmrMgAkVPjA
Message-ID: <1808340F7EC362469DDFFB112B37E2FCC6CFA335E7@SRVHKE02.rdm.cz>
References: <CAD6AjGSEOva1RzDXJqmstFk=13JnPUSWM9rQ3PmXCXPQQwcBDQ@mail.gmail.com> <1358681491.98785.YahooMailNeo@web142502.mail.bf1.yahoo.com> <CAD6AjGSfJHTwL-TM+U68h6SOtcid5JD_0ZJpFufyG3P-bOYtsQ@mail.gmail.com> <1358883507.57517.YahooMailNeo@web142506.mail.bf1.yahoo.com> <CAD6AjGQfpMvR4ETEAyW_WJssdj=bN1PRbQ29K1zNmOX4OgLL7w@mail.gmail.com> <C82845F42F09E94DBCB19F4D06A9DC4B013D3A76E322@HE111490.emea1.cds.t-internal.com> <5107F6B2.8070708@gmail.com>
In-Reply-To: <5107F6B2.8070708@gmail.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
acceptlanguage: en-US
Content-Type: text/plain; charset="iso-8859-2"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-CFilter-Loop: Forwarded
Subject: Re: [v6ops] draft-ietf-v6ops-64share
X-BeenThere: v6ops@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: v6ops discussion list <v6ops.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/v6ops>, <mailto:v6ops-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/v6ops>
List-Post: <mailto:v6ops@ietf.org>
List-Help: <mailto:v6ops-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/v6ops>, <mailto:v6ops-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 30 Jan 2013 10:49:47 -0000

> -----Original Message-----
> From: v6ops-bounces@ietf.org [mailto:v6ops-bounces@ietf.org] On Behalf Of
> Alexandru Petrescu
> Sent: Tuesday, January 29, 2013 5:20 PM
> To: v6ops@ietf.org
> Subject: Re: [v6ops] draft-ietf-v6ops-64share
> 
> Le 29/01/2013 16:25, holger.metschulat@telekom.de a écrit :
> > -----Ursprüngliche Nachricht----- Von: v6ops-bounces@ietf.org
> > [mailto:v6ops-bounces@ietf.org] Im Auftrag von Cameron Byrne
> > Gesendet: Dienstag, 22. Januar 2013 21:34 An: Mark Smith Cc:
> > v6ops@ietf.org Betreff: Re: [v6ops] draft-ietf-v6ops-64share
> >
> > Cameron,
> >
> >> I think would rather avoid any of this translational bridging
> >> business.  And in fact, i am only trying to document  running code
> >> to avoid multiple divergent methods of achieving the same goal.
> >
> >> That said, it appears a few folks (Rajiv and Alex) have some
> >> indigestion over having one IP address in multiple places.  It
> >> works for me, but i can accept that it may not work well for
> >> others.
> >
> > I personally also don't like the idea of having the same IP address
> > in two places. I always look at this as the UE's own IPv6 address
> > attached to an internal interface int0 inside the UE, and the UE
> > building a "virtual brigde" connecting the wlan0, int0 and wwan0
> > interface together. In front of the wwan0 interface, there is a
> > matching logic adapting Ethernet L2 towards the WWAN L2
> 
> The bridging of the virtual interface and the other two real interface-
> I could visualize it, with a single address attributed to the virtual
> interface.
> 
> However, I wonder what this bridging may mean to routing.  If all the
> interfaces on this machine are 'bridged' (maybe brconfig, brctl) then is
> there any IP routing possible on this machine.

I believe you're either bridging or routing, but not both at the same time.
 
> I guess the two subnets - the one on wwan0 and the one on wlan0 - shoudl
> stay separate scope.  One wouldn't want a NS sent by a Host in the WLAN
> subnetwork be transmitted to the WWAN subnetwork.

I am supporting the same view, so keep both wwan and lan interfaces separate.

> Alex

Cheers,
Ales