IETF Logo Mail Archive

Re: [v6ops] reclassify 464XLAT as standard instead of info

Lorenzo Colitti <lorenzo@google.com> Fri, 22 September 2017 06:18 UTC

Return-Path: <lorenzo@google.com>
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 8A5F2132981 for <v6ops@ietfa.amsl.com>; Thu, 21 Sep 2017 23:18:08 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.7
X-Spam-Level:
X-Spam-Status: No, score=-2.7 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=google.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id HWfCgzUkbw9J for <v6ops@ietfa.amsl.com>; Thu, 21 Sep 2017 23:18:07 -0700 (PDT)
Received: from mail-io0-x22c.google.com (mail-io0-x22c.google.com [IPv6:2607:f8b0:4001:c06::22c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 7D07D126DFE for <v6ops@ietf.org>; Thu, 21 Sep 2017 23:18:07 -0700 (PDT)
Received: by mail-io0-x22c.google.com with SMTP id v36so871598ioi.1 for <v6ops@ietf.org>; Thu, 21 Sep 2017 23:18:07 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=RbNQbpIL8P3RIPnxl/TGQXhXaonBj7POYEWIMwxX0TY=; b=uxXI6qDMdB4J9RTFv2LWArL+haPgardLbSFNRK8kquIV+5YGrvYX8wQNBqLGUBN9Zo G6kc/hxglzSrQDUBsHLZR/18cAcxU1RzwKQRzwVpzRUGh5frc87d929kBbVWQzR7unih rUm8pYnZPxRHNdSI1cUtezZNVepK1e+vha1kuoV/HJqrz9MTUluh+re153WuP3Q4cfNI umTfJbu+eG6bj9pNsDc8NzFllAH9Ay7CXQQeyvahoGTGFonuLgGAIolusipY8sw5mpq9 +SyL2s2nqBeen9+eQ4bdfedonpItF7nagc8O5Dn6bkuGBojThxWcaE7WtxNdI9gWLGce NquQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=RbNQbpIL8P3RIPnxl/TGQXhXaonBj7POYEWIMwxX0TY=; b=q9ZZUC1iuc4yYIMW+MA7fWL88QL1nyzxoWSVA8EpZWsu0WgQfDd9jATONcz2AOIY05 ZvvL0SSaIAiuo1IRntCWOp0DsDeLD2mGRsjGOssS5XPRg16M/eTLqQwrvSgDDiLo3m6+ waWNBmaEttRWPI7LmJOzriy7yLPW83vkj+PRJUG4zgpSGqLjWlcS9KILQ96cxnSgYCGP g1C0LGW1y8G0o/KcM0Xxf2ds3Znoab6Ea1wRJdaKzjZvWQhsr0NLfqMFwny+YFs2DVPK 2BxrNxHNrE19/Z17PZ1yRLQrBFh+/7Kf3opAfhyqa7a1GW+z1gZ6o52lywOUQyar5oCL sw/Q==
X-Gm-Message-State: AHPjjUjWi0jgKjfV/fihUmKiR1UybWfLk3bY9A0+aN6XXT7JTAdwaT/L m3XOqsxI5gWG6p2bxaN1Y9efHEyyNN4dVBASUKFvQA==
X-Google-Smtp-Source: AOwi7QBvDt9emTgDMKvEM9eA0xcpY/Inlje5a9ed/BOjWfuQnkwinGH2sRnm+J4vHu8OF8s8Fd8H6JBhqHcgTA8rLy4=
X-Received: by 10.107.52.205 with SMTP id b196mr6710511ioa.4.1506061086513; Thu, 21 Sep 2017 23:18:06 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.107.164.26 with HTTP; Thu, 21 Sep 2017 23:17:45 -0700 (PDT)
In-Reply-To: <20170921223305.B72A8878E716@rock.dv.isc.org>
References: <D5E8043B.86B21%lee@asgard.org> <E48DDA04-C058-4992-906E-8C8BC0E102AB@consulintel.es> <1BFA3605-4B16-4331-A7BA-3BDECBCA64EC@gmail.com> <85868796-18C7-48F4-BE69-8D50A1F47EF3@jisc.ac.uk> <472CC0F7-73C2-4A21-8F96-BBC966B01B77@employees.org> <de6b9aac-a3cc-0915-77c7-9fb880c3a16a@gmail.com> <20170921223305.B72A8878E716@rock.dv.isc.org>
From: Lorenzo Colitti <lorenzo@google.com>
Date: Fri, 22 Sep 2017 15:17:45 +0900
Message-ID: <CAKD1Yr13ijKCB_71_2vMyGurc3-kSraLJycGxZwf121tjp8u1Q@mail.gmail.com>
To: Mark Andrews <marka@isc.org>
Cc: Brian E Carpenter <brian.e.carpenter@gmail.com>, "v6ops@ietf.org WG" <v6ops@ietf.org>
Content-Type: multipart/alternative; boundary="001a114410cc12b0660559c12c2d"
Archived-At: <https://mailarchive.ietf.org/arch/msg/v6ops/F0mbZPc_FAB1JVH17VK9M-Im4aE>
Subject: Re: [v6ops] reclassify 464XLAT as standard instead of info
X-BeenThere: v6ops@ietf.org
X-Mailman-Version: 2.1.22
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: <https://mailarchive.ietf.org/arch/browse/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: Fri, 22 Sep 2017 06:18:08 -0000

On Fri, Sep 22, 2017 at 7:33 AM, Mark Andrews <marka@isc.org> wrote:

> Because 464XLAT is almost always deployed with DNS64 (there are
> potentially other ways to learn the address mappings):
>
> YOU DO NOT KNOW IF THE IPV6 CONNECTION YOU ARE MAKING IS BEING
> TERMINATED ON A IPV6 NODE.
>

Why don't you? All you need to do is compare the destination address with
the NAT64 prefix. If it's in that prefix, then it's an IPv4 node, otherwise
it's an IPv6 node.

v2.23.0 | Report a Bug | By Email