Re: [v6ops] [IPv6] Why folks are blocking IPv6 extension headers? (Episode 1000 and counting) (Linux DoS)

Ted Lemon <mellon@fugue.com> Wed, 17 May 2023 23:30 UTC

Return-Path: <mellon@fugue.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 D05A8C17CE9C for <v6ops@ietfa.amsl.com>; Wed, 17 May 2023 16:30:30 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.898
X-Spam-Level:
X-Spam-Status: No, score=-1.898 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=unavailable autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=fugue-com.20221208.gappssmtp.com
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 YQrxHEjMNOLJ for <v6ops@ietfa.amsl.com>; Wed, 17 May 2023 16:30:26 -0700 (PDT)
Received: from mail-qv1-xf30.google.com (mail-qv1-xf30.google.com [IPv6:2607:f8b0:4864:20::f30]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 55889C151094 for <v6ops@ietf.org>; Wed, 17 May 2023 16:30:26 -0700 (PDT)
Received: by mail-qv1-xf30.google.com with SMTP id 6a1803df08f44-61b5a653df7so11281106d6.0 for <v6ops@ietf.org>; Wed, 17 May 2023 16:30:26 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fugue-com.20221208.gappssmtp.com; s=20221208; t=1684366225; x=1686958225; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=7X0Up9FR0GJTKMV3tp6+sjkBp4bfgYF8GTAptAMTjbc=; b=W8eMCD3yyZd0XptWYAEUeRlvOKL+KDr9/9HuyTP4EAy5sEbUFWaKWmseNcY7Lq8MpM lf/3tw/7DynpgdSTlW/DUWOTAqdoDbpWLMMs6ZHsw0kcgS+XzOKXVBM7SlnapWMrq2Sj IdZckoNgTXatXqSTdj6a58aH9TaQk0m6RCiPVCy/hRc4ymYd+qGypWGJmE8GcW344opi MsR1vAIsA5xju+S/lC/xHmkZJAg99pIKsnYKBgx2K+I8BqYWfay9+Mgd3fbi03TyURew d7Lb6sAfSbFzdeMkQ+aqQOtAofMH3ikOyaarFBQ9rPfmurlJhon1WoqKpreV3ueaMlGn 7d4w==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684366225; x=1686958225; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=7X0Up9FR0GJTKMV3tp6+sjkBp4bfgYF8GTAptAMTjbc=; b=jxA3j3zy2n2P1GQi6HSGNLSTgxgBjEnz6dnnMwke6nZaIDSnuRrYbu+BpTEnMj83pn nS48F/R1YpFoP/PxDefDebXe7231ApNjeLNj84QwXqL/ukbftOqUgmz4sdVk438KlkVF ZWHT18ayy2r18mOU5JhmVeIs5YoAkJq6st0KtdUlU0GeicSGD+4o0kIcp1BKtbuWojF0 VxNQ85gUOrmyOaFb5b/RiqtEUzpR3eH+1LeU+CsX373Mzn+z7P7rMfCrZRxnXet8Xx0v JGYHemK9JWw3bhz3eeftqDGaerBfz5F+Uul3P769M9MU68RplBZJipmckntbxmMP9HtH s8mQ==
X-Gm-Message-State: AC+VfDzLhLDh7pzt8+v4Th35O08vOODr9EeSyfbMRe2W4hHuVclY1Eou uDOgPqL9BwlSRMxGjwfRIx49hGbkjuGnOiAF+FtKJuO2fPeIrm56Z9pNLQ==
X-Google-Smtp-Source: ACHHUZ5IFazbq9qyGiHimgszxem+9LOnPwfQgh/18Qn4Tz/citrcWdROwO293oiRUZ4O9baf0CzJFzhmyvg3dUpTgpQ=
X-Received: by 2002:ad4:5967:0:b0:621:4551:c6dc with SMTP id eq7-20020ad45967000000b006214551c6dcmr1774488qvb.39.1684366225411; Wed, 17 May 2023 16:30:25 -0700 (PDT)
MIME-Version: 1.0
References: <11087a11-476c-5fb8-2ede-e1b3b6e95e48@si6networks.com> <CALx6S343f_FPXVxuZuXB4j=nY-SuTEYrnxb3O5OQ3fv5uPwT8g@mail.gmail.com>
In-Reply-To: <CALx6S343f_FPXVxuZuXB4j=nY-SuTEYrnxb3O5OQ3fv5uPwT8g@mail.gmail.com>
From: Ted Lemon <mellon@fugue.com>
Date: Wed, 17 May 2023 19:29:49 -0400
Message-ID: <CAPt1N1=8veiXP8ptGwau=Kpy8c-bUga_sTERuAJR8a73Q7s71A@mail.gmail.com>
To: Tom Herbert <tom=40herbertland.com@dmarc.ietf.org>
Cc: Fernando Gont <fgont@si6networks.com>, 6man@ietf.org, V6 Ops List <v6ops@ietf.org>, opsec WG <opsec@ietf.org>
Content-Type: multipart/alternative; boundary="00000000000089a93d05fbec123f"
Archived-At: <https://mailarchive.ietf.org/arch/msg/v6ops/CWsnJMY5wdXh6caOqpGf-cyf66k>
Subject: Re: [v6ops] [IPv6] Why folks are blocking IPv6 extension headers? (Episode 1000 and counting) (Linux DoS)
X-BeenThere: v6ops@ietf.org
X-Mailman-Version: 2.1.39
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: Wed, 17 May 2023 23:30:31 -0000

On Wed, May 17, 2023 at 2:57 PM Tom Herbert <tom=
40herbertland.com@dmarc.ietf.org> wrote:

> Do all this, and I think you might be able to claim to have a secure
> network connected to the Internet :-)


Why, so can I, or so can any person;
But will they come, when you do call for them?

(I realize the quote doesn't exactly match, but hopefully you get the
point. This is a rejoinder to the statement "I can summon spirits from the
vasty deep," which seems equivalently chutzpahdig.)