From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, HTML_MESSAGE,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2AA18C433DB for ; Wed, 27 Jan 2021 19:16:31 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9C39A64DC5 for ; Wed, 27 Jan 2021 19:16:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9C39A64DC5 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:41366 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l4qIn-0000wj-GK for qemu-devel@archiver.kernel.org; Wed, 27 Jan 2021 14:16:29 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:48490) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l4qGZ-0008NY-1F for qemu-devel@nongnu.org; Wed, 27 Jan 2021 14:14:11 -0500 Received: from mail-vk1-xa2a.google.com ([2607:f8b0:4864:20::a2a]:39570) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1l4qGW-0002pc-FL for qemu-devel@nongnu.org; Wed, 27 Jan 2021 14:14:10 -0500 Received: by mail-vk1-xa2a.google.com with SMTP id m25so770112vkk.6 for ; Wed, 27 Jan 2021 11:14:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=Puo9HNQ5v9q2qy2WW3Y41976aGdG1x+LL3nbJt3zixE=; b=tdVkGFr1aq65+ANNM21Wgj10Eh6ZyQzE0LUYYA3DgqI/8ZHa2Hh/aDJzSBBBhRNiTe 9EKNqaolZZLop/rF+4F2g/zh08UXa3rCK+rhKgWbkF8+ARi5TgOl0JL2oq1cMAu9j+Tg qNHkA6aQPUKEScELSnbswU1rqavOihMdHWXZFXuk6KerHHOn+cj+FDDlGCC1TPVYAiqN KwF5JYL+c+mk4p9bGZr7TY9sFNdWxrBBj/hBOlNrnLYS6y1l7xKyrzLF76E3AhgT385O k7UZtPBkEjRgjb0lk7WlbwiJkOOeY7pTC5WnslSov+XqgbX5STSBB5vDciHaVCctWuuf 6QrA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=Puo9HNQ5v9q2qy2WW3Y41976aGdG1x+LL3nbJt3zixE=; b=akmPwUVBfDrCaJpTtGV9Hwv8qkbHG0pyPsGzzskLq3c9WUHOHdEPyxbp8kQ2i/ERgI f6a3ynzJYhxIl5XvF66g++0e4ZORmkEiw5/DENIY7ucTNfYyXy5WnS5YcTt7P240T0ug MWaMtCXmh/8fh3y9r0hh/HAebyG/ILCO/n/bR4bj0DGNFEv9EsSNCAp2zbyIbSFDe8fp iiSevb7vRLAhTyNZrjsMIq2lv7UadFTjou0JLWFa7B57R2TX6djMkSGmmHN5Xp5HjCG2 3+NDrvRXifrWqcDAgcpnZMkIn5Uo9IfxGcLPSLmfqJ6NvK6V+pV17RqT22T/zDraSV+B rNiw== X-Gm-Message-State: AOAM533L4+dP4MF74nczueVSIiuDhbuGAN5awcUeLhw6Yv9xnzWBG9O2 RFLLn92ahHu3a+rPy5S5IGFjP7E7WXqdtps28phY3NiXWmg= X-Google-Smtp-Source: ABdhPJx2ciGTDL+omhSCnAC4HBTqJYK/o2isJO8uUe9rLm4zZ+ILPY+jZ0Rkvg2i4pT+K4/LDdHDA+jDLVVKmq37x6s= X-Received: by 2002:a1f:29c9:: with SMTP id p192mr2128515vkp.8.1611774845405; Wed, 27 Jan 2021 11:14:05 -0800 (PST) MIME-Version: 1.0 From: Doug Evans Date: Wed, 27 Jan 2021 11:13:29 -0800 Message-ID: Subject: [RFC] Change default ipv6 network from fec0/10 (site local) to fe80/10 (link local) To: QEMU Developers Content-Type: multipart/alternative; boundary="0000000000001ed81e05b9e69351" Received-SPF: pass client-ip=2607:f8b0:4864:20::a2a; envelope-from=dje@google.com; helo=mail-vk1-xa2a.google.com X-Spam_score_int: -175 X-Spam_score: -17.6 X-Spam_bar: ----------------- X-Spam_report: (-17.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, ENV_AND_HDR_SPF_MATCH=-0.5, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5, USER_IN_DEF_SPF_WL=-7.5 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" --0000000000001ed81e05b9e69351 Content-Type: text/plain; charset="UTF-8" Hi. This is just an information gathering question. I don't know enough to formally propose the change. I happened to notice QEMU's default for the ipv6 network is fec0::/10 which is deprecated (RFC3879). I think(!) an obvious replacement is fe80::/10, link local. Has anyone thought about this issue or know of reasons why we shouldn't make this change? --0000000000001ed81e05b9e69351 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi.=

=
This is just an info= rmation gathering question. I don't know enough to formally propose the= change.
I happ= ened to notice QEMU's default for the ipv6 network is fec0::/10 which i= s deprecated (RFC3879).
I think(!) an obvious replacement is fe80::/10, link local.
<= div class=3D"gmail_default" style=3D"font-size:small">
Has anyone thought about this = issue or know of reasons why we shouldn't make this change?

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