Return-Path: X-Original-To: ipv6@mail2.ietf.org Delivered-To: ipv6@mail2.ietf.org Received: from localhost (localhost [127.0.0.1]) by mail2.ietf.org (Postfix) with ESMTP id 43C02A16391C for ; Thu, 1 Jan 2026 16:54:53 -0800 (PST) X-Virus-Scanned: amavisd-new at ietf.org X-Spam-Flag: NO X-Spam-Score: -0.001 X-Spam-Level: X-Spam-Status: No, score=-0.001 tagged_above=-999 required=5 tests=[BAYES_20=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Received: from mail2.ietf.org ([166.84.6.31]) by localhost (mail2.ietf.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id A4lrhcwQzNWf for ; Thu, 1 Jan 2026 16:54:53 -0800 (PST) Received: from mail.si6networks.com (mail.si6networks.com [IPv6:2a02:c207:2265:5757::1]) (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 mail2.ietf.org (Postfix) with ESMTPS id E1B2DA16390E for <6man@ietf.org>; Thu, 1 Jan 2026 16:54:52 -0800 (PST) Received: from [IPV6:fc00:17:1::1000] (unknown [IPv6:2600:1901:4010:761::]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by mail.si6networks.com (Postfix) with ESMTPSA id 72067481872; Fri, 2 Jan 2026 01:54:43 +0100 (CET) Message-ID: <15b7a0e4-c385-41d7-b579-b7f1da8ca456@gont.com.ar> Date: Thu, 1 Jan 2026 21:54:40 -0300 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: Mark Smith , Brian E Carpenter References: <176678724056.1402966.14218264572401004152@dt-datatracker-5656579b89-p6k4r> <7BB77C6F-E6C7-412C-A8D3-6228FE1F556A@gmx.de> Content-Language: en-US From: Fernando Gont In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Message-ID-Hash: ZBQLIO4YOKOL7EMJQDHNHCUWHBTRZPIX X-Message-ID-Hash: ZBQLIO4YOKOL7EMJQDHNHCUWHBTRZPIX X-MailFrom: fernando@gont.com.ar X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-ipv6.ietf.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: Sebastian Moeller , 6MAN <6man@ietf.org> X-Mailman-Version: 3.3.9rc6 Precedence: list Subject: =?utf-8?q?=5BIPv6=5DRe=3A_Fwd=3A_New_Version_Notification_for_draft-herbert-?= =?utf-8?q?deprecate-eh-00=2Etxt?= List-Id: "IPv6 Maintenance Working Group (6man)" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On 30/12/2025 18:54, Mark Smith wrote: > If IPv6 EHs are such a big problem, why haven't IPv4 options been > removed decades ago? > You mean formally deprecated them, or rendering them useless? The former indeed never happened. The latter did. Thanks, -- Fernando Gont e-mail: fernando@gont.com.ar PGP Fingerprint: 7F7F 686D 8AC9 3319 EEAD C1C8 D1D5 4B94 E301 6F01