IETF Logo Mail Archive

[v6ops] Re: RA leaking on a tagged vlan with Windows

Nick Hilliard <nick@foobar.org> Fri, 18 October 2024 14:34 UTC

Return-Path: <nick@foobar.org>
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 DF36EC151981 for <v6ops@ietfa.amsl.com>; Fri, 18 Oct 2024 07:34:53 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.262
X-Spam-Level:
X-Spam-Status: No, score=-2.262 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, NICE_REPLY_A=-0.355, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, URIBL_DBL_BLOCKED_OPENDNS=0.001, URIBL_ZEN_BLOCKED_OPENDNS=0.001] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3mOORwylbzWo for <v6ops@ietfa.amsl.com>; Fri, 18 Oct 2024 07:34:50 -0700 (PDT)
Received: from mail.netability.ie (mail.netability.ie [IPv6:2a03:8900:0:100::5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id DC876C1DA2C9 for <v6ops@ietf.org>; Fri, 18 Oct 2024 07:34:48 -0700 (PDT)
Received: from cupcake.local (unknown [89.101.195.156]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.netability.ie (Postfix) with ESMTPSA id 3348DB0711; Fri, 18 Oct 2024 15:34:45 +0100 (IST)
To: Ondřej Caletka <ondrej.caletka@gmail.com>
References: <CALRKgT7wkUWwWP6+ygLcb2pB0VEEdUvsOWd1qUtt9z7axk8aig@mail.gmail.com> <CA+E65xQT1-RjPM3M51ZAbsLVNi06acm1nwcC7MAtaoRJuFiqSQ@mail.gmail.com>
From: Nick Hilliard <nick@foobar.org>
Message-ID: <1ea2091d-91d3-f324-40d3-be5b63c4b9d9@foobar.org>
Date: Fri, 18 Oct 2024 15:34:43 +0100
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.16; rv:52.0) Gecko/20100101 PostboxApp/7.0.64
MIME-Version: 1.0
In-Reply-To: <CA+E65xQT1-RjPM3M51ZAbsLVNi06acm1nwcC7MAtaoRJuFiqSQ@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"; format="flowed"
Content-Language: en-US
Content-Transfer-Encoding: 8bit
Message-ID-Hash: YRDV2TEMUHBIE5K3U442M62VFK4HRKYK
X-Message-ID-Hash: YRDV2TEMUHBIE5K3U442M62VFK4HRKYK
X-MailFrom: nick@foobar.org
X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-v6ops.ietf.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header
CC: IPv6 Operations <v6ops@ietf.org>
X-Mailman-Version: 3.3.9rc6
Precedence: list
Subject: [v6ops] Re: RA leaking on a tagged vlan with Windows
List-Id: v6ops discussion list <v6ops.ietf.org>
Archived-At: <https://mailarchive.ietf.org/arch/msg/v6ops/aGIQ3uYNrjfnoP5VT7ynm3WDlgY>
List-Archive: <https://mailarchive.ietf.org/arch/browse/v6ops>
List-Help: <mailto:v6ops-request@ietf.org?subject=help>
List-Owner: <mailto:v6ops-owner@ietf.org>
List-Post: <mailto:v6ops@ietf.org>
List-Subscribe: <mailto:v6ops-join@ietf.org>
List-Unsubscribe: <mailto:v6ops-leave@ietf.org>

Ondřej Caletka wrote on 18/10/2024 14:23:
> this is a known "feature" of Windows. On the receiving side it ignores 
> VLAN tags and processes even tagged frames as if they were destined to it.

that is astonishing behaviour.

https://en.wikipedia.org/wiki/Principle_of_least_astonishment

Nick

v2.40.4 | Report a Bug | By Email | System Status