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=-2.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 87FFBC54E4A for ; Sat, 9 May 2020 21:09:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6612D21582 for ; Sat, 9 May 2020 21:09:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="opfUyiQi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728509AbgEIVJu (ORCPT ); Sat, 9 May 2020 17:09:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51506 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728187AbgEIVJu (ORCPT ); Sat, 9 May 2020 17:09:50 -0400 Received: from mail-il1-x141.google.com (mail-il1-x141.google.com [IPv6:2607:f8b0:4864:20::141]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0393CC061A0C for ; Sat, 9 May 2020 14:09:50 -0700 (PDT) Received: by mail-il1-x141.google.com with SMTP id n11so4829156ilj.4 for ; Sat, 09 May 2020 14:09:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=uw2e8xSDXKvDbB40xD0k2vw+FSrKLWjo3OjqNAKhaIM=; b=opfUyiQizRxYOrveccTApQnB+hYN2it/UnLI0nmXhRT8xxE7PQEvhPn6RiEMSekHBh dBLyNmbbs4v0qXMGaaJrNtsgSDftbfDs589LIGCs9IJo6zkgMo/WpQNyB+xyXivurIC1 6kYyAN9t44OUoAxRx5ykqUEa1/YjRwDhc0vbi/nAmylQctbRSyLmdeWTZqEEcynrbmnH oQQLj5pvNHB6hBBOSenHG6GiViCHaAXoZSlKThO8CQRpgYsu0F2VfHT4n0Hb0whGcPF6 NS2vjPa0xZ6UyzruP/Qg3zCR2gatt3pm2cVvnNGp84WTVk2XINLDSqYB5VMxBHVi/aF8 rIsg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=uw2e8xSDXKvDbB40xD0k2vw+FSrKLWjo3OjqNAKhaIM=; b=gHEZkwPavWPXAk+bmDQHrkZv80DVW7fud3DHQHsje+XEVhPALUs3gfJAh1urlhHufp UNHa6hDHcpGvZwikfJZ34xLziWXUYRUT+w9VwBqaTSiXdgFiE64OCs3NO3hLJlHq0XcD fYcT5uiw3MxoG9k+4VBhrjAwzIF42IaFophBFfKeevVxzmBy/jSpJTndEoIwC/3Pc8L5 uClV9iwamQb6n0wFDqVkzHZzuSf0FkXHsYzsnJEQOys41kuY2fejvHxMIP7cKnkhBBXk pSKPLsxZPMWkHLkG10E9yAraQ6yL6olyykCJ1ifyF74Siyejn7Lt4zO7wfT/dPDMKQQk 4UUQ== X-Gm-Message-State: AGi0PuaQ8tetyqRxBSJrA7lK6w8b7dmoP7gZsKglMxdCCjKDO9fnhFLH YH1CF3cALjxKwsQAg+/93FgMeTLT X-Google-Smtp-Source: APiQypI4qfkp9HlXE2oSEjGbWOzrLmarIyzwRmJ6x8SWuYqimCRfmqUI7qnuox3Jx3cwJBc+eKTNSQ== X-Received: by 2002:a92:cd01:: with SMTP id z1mr8960671iln.182.1589058589234; Sat, 09 May 2020 14:09:49 -0700 (PDT) Received: from ?IPv6:2601:282:803:7700:d4f4:54fc:fab0:ac04? ([2601:282:803:7700:d4f4:54fc:fab0:ac04]) by smtp.googlemail.com with ESMTPSA id x75sm2815451ill.33.2020.05.09.14.09.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 09 May 2020 14:09:48 -0700 (PDT) Subject: Re: [PATCH] net-icmp: make icmp{,v6} (ping) sockets available to all by default To: Ido Schimmel , =?UTF-8?Q?Maciej_=c5=bbenczykowski?= Cc: "David S . Miller" , Linux Network Development Mailing List References: <20200508234223.118254-1-zenczykowski@gmail.com> <20200509191536.GA370521@splinter> <20200509193225.GA372881@splinter> From: David Ahern Message-ID: <682963e4-7434-c836-6874-55cc7f83ec31@gmail.com> Date: Sat, 9 May 2020 15:09:47 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 MIME-Version: 1.0 In-Reply-To: <20200509193225.GA372881@splinter> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 5/9/20 1:32 PM, Ido Schimmel wrote: > On Sat, May 09, 2020 at 12:17:47PM -0700, Maciej Żenczykowski wrote: >> Argh. I've never understood the faintest thing about VRF's. > > :) > > There are many resources that David created over the years. For example: > > https://www.kernel.org/doc/Documentation/networking/vrf.txt > https://netdevconf.info/1.1/proceedings/slides/ahern-vrf-tutorial.pdf > https://netdevconf.info/1.2/session.html?david-ahern-talk best one is from OSS N.A. 2017: http://schd.ws/hosted_files/ossna2017/fe/vrf-tutorial-oss.pdf Maciej: Basically, VRF narrows the scope to an L3 domain - devices enslaved to the VRF device, their addresses and FIB entries in the VRF table.