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=-2.3 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 251C5CA9EC7 for ; Sat, 2 Nov 2019 17:38:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E779D21726 for ; Sat, 2 Nov 2019 17:38:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="NJoc2udb" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726523AbfKBRi3 (ORCPT ); Sat, 2 Nov 2019 13:38:29 -0400 Received: from mail-io1-f68.google.com ([209.85.166.68]:34389 "EHLO mail-io1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726454AbfKBRi3 (ORCPT ); Sat, 2 Nov 2019 13:38:29 -0400 Received: by mail-io1-f68.google.com with SMTP id q1so14233324ion.1; Sat, 02 Nov 2019 10:38:28 -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=FM/ey+XtV99iTTOz0BvDqFhF3qzBZV1oTNEv0Wtewg8=; b=NJoc2udb8RE59zirpliZR4A7prmZPWtNGMLpROvtY+og8t1Iq7nMxGFLlz3jctHcCl eWyOYGI+UGgqsrWezG88pnDsmS2Wb9bb8fE0Y4csSazrs4/QyrZVNPdSTwzqr5ZTxYUR cdLMGsnwndKYA8n5bnYBXmkn7dVCQ5OoqnZS1yNoIlPnZhbX/xg1DXP0WdOa8QHob+CG OxDERkr/DB8LJWNyvtVfIOIdgWJmmeb8IVNGFNK0IfTC6lmi15FjiZb/cXZZjNquaDe0 Kj1dBoHTokI6T4isx44VwZMW8EkmeWaVxanh2EFxhNTt8XmTdjJUytaZGAusbKSe8DkF QwHg== 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=FM/ey+XtV99iTTOz0BvDqFhF3qzBZV1oTNEv0Wtewg8=; b=pszKznJvJW9JnnIacSy0ioD0wiWaLHo9nxUjumdG/iQdI8lH4EHBdcyKQEHXGr4XSw J9AVTriv9g9UajczWegF3D5mf1+L8m+qErRXtCFnh8nZrixhtPAz+1rAglBkYGe1Oxt6 p5oNZJVT/2Z6KRchpsNhW05wPaaYNZcvn2ZVa/ejiZ+84RVB7RGVXLfFGxLKWFXvoLJ9 C/mMKCwfBOeUtZuHCA5YsCgZi1uDcN2uH0OopSpxmxUdRvyvQoX3SgvCvDsaddYfDu02 F8PAiDh1Xdj8nxXuQsbMMS5Gay8MlC2GJsXZ3pOVfBem5OD05rbku8ZBPiTr4m56UKnB co4Q== X-Gm-Message-State: APjAAAWE+qSNEsDoaa1miNclOQuVjlp8D47eq+G9rPSxhoeVqyh4gwMS raYXAsuyUcRkuZ5lSiczPrTHf4l6 X-Google-Smtp-Source: APXvYqwkpO9Qc2ww+kDXyddMHg7uJw2ku9dsELbY7RgtjF4CmFug256EnF4EbcqNOhTg9cnTzgFouA== X-Received: by 2002:a05:6602:2547:: with SMTP id j7mr7244883ioe.77.1572716308045; Sat, 02 Nov 2019 10:38:28 -0700 (PDT) Received: from dahern-DO-MB.local ([2601:282:800:fd80:d194:3543:ed5:37ec]) by smtp.googlemail.com with ESMTPSA id v10sm1571839ila.81.2019.11.02.10.38.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 02 Nov 2019 10:38:27 -0700 (PDT) Subject: Re: [PATCH net-next 2/2] selftest: net: add icmp reply address test To: Francesco Ruggeri Cc: David Miller , shuah@kernel.org, netdev , linux-kselftest@vger.kernel.org References: <20191101233408.BC15495C0902@us180.sjc.aristanetworks.com> <0a03def6-3ea0-090f-048f-877700836df2@gmail.com> <690336d7-0478-e555-a49b-143091e6e818@gmail.com> From: David Ahern Message-ID: <06dd5c8e-7eeb-a00f-e437-11897fe01ad1@gmail.com> Date: Sat, 2 Nov 2019 11:38:25 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.2.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kselftest-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org On 11/2/19 10:09 AM, Francesco Ruggeri wrote: > On Sat, Nov 2, 2019 at 8:11 AM David Ahern wrote: >> On 11/2/19 9:08 AM, Francesco Ruggeri wrote: >>> I am only using macvlans for N1 in the ipv6 test, where there are 3 nodes. >>> How do I use veths for that? >> >> checkout the connect_ns function. It uses veth to connect ns1 to ns2. > > I apologize in advance for being slow ... > I have 3 namespaces that have to share the same LAN, I am not trying > 1-1 connections among those namespaces. > How would you cable this if it were an actual network with physical nodes? - bridge on R1 (since it is the gw for H1), with connections to R2 and H1 into the bridge - second connection between R1 and R2 - connection between R2 and H2 For the simulation, network namespaces represent physical nodes, veth pairs act like a cable between the nodes / namespaces and the bridge makes the LAN.