From owner-freebsd-transport@freebsd.org Thu May 4 13:02:13 2017 Return-Path: Delivered-To: freebsd-transport@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 58A61D5E7FD for ; Thu, 4 May 2017 13:02:13 +0000 (UTC) (envelope-from jonlooney@gmail.com) Received: from mail-wr0-x232.google.com (mail-wr0-x232.google.com [IPv6:2a00:1450:400c:c0c::232]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id EEFEA3AB for ; Thu, 4 May 2017 13:02:09 +0000 (UTC) (envelope-from jonlooney@gmail.com) Received: by mail-wr0-x232.google.com with SMTP id l50so7450423wrc.3 for ; Thu, 04 May 2017 06:02:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=Xs5Fh8OnpMVDkAFX8M4gpffwneggDTNfvSMICze1BDY=; b=M4re4/fPG3f0H06m1ReHjkKHCVNgwdUN0Vl2Km6TdN8+nkp/0NDW7gUcgBqQfLgmXS KuhiUOLpucKgX8osYEEf9WWqj8g/Jpjdyh8QDZDDbvLk/1Dc3Rxx94Bm85XneOl5ya7c tzVbqvPzQ7AxJ9Rux3xhkQPxL+R6nsuoLcuy5cqavRdnBx2H4pwStIfmPn5fN7Digu/4 jXUX96ifjE2AQRcks5ypSHp7FM/H9G2tIhZQP9ZDuLTJ2NEOZkGtBXMvt2+7RZXN9Vas lxk8fk34zZGfClVC5MaDPGFsNGIpHMhnepUf36MU4MiPzjKRdJPdA7iwTupMDGFMDNs8 SPVw== 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=Xs5Fh8OnpMVDkAFX8M4gpffwneggDTNfvSMICze1BDY=; b=cjQLM5Mue19qdfOEikl+fTyeOrlNWcr/LsxbiIhA+LNBa3KYnyky9SH+SxL8EmlHGY dgIWvR0NTOA81CpIiKatc7M/pt9kNkoavQ9XB7wM64hUJtYgbd6coju5Q79Pgy1g9fbe UUPfPksBV6zTVvDbx+U0RRAFk7lRATuozn7/2Ku6+x/p5oYmrDwKDdlbdYYNtbc4UvDl 16mKN/XNBecyNP82B8tD9FybyWmS2MESWfz5SWh/ptDReJPxulB+Cw01OzUqHfIADxWZ Oqy8PoD2SvQVAs4QEcGcHcozGE8335ZO8NN2os39hoLO3OZWtRbM3Iw6aSoInO5Njr7X lZbg== X-Gm-Message-State: AN3rC/46PtMNGCKlHbXf5HWGhsFL7buP3n33kusALtHuddHYlgpIW6Gz bGIc5Tfljn3lWulQwxC8H3jSsGg7mH6TLTQ= X-Received: by 10.223.172.105 with SMTP id v96mr31314990wrc.1.1493902928140; Thu, 04 May 2017 06:02:08 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.176.5 with HTTP; Thu, 4 May 2017 06:02:07 -0700 (PDT) From: Jonathan Looney Date: Thu, 4 May 2017 09:02:07 -0400 Message-ID: Subject: BSDCan Transport WG To: "" X-Mailman-Approved-At: Thu, 04 May 2017 13:54:44 +0000 Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-transport@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Discussions of transport level network protocols in FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 May 2017 13:02:13 -0000 Folks, We will once again be having a transport working group at BSDCan. See the information here: https://wiki.freebsd.org/DevSummit/201706/Transport . I've thrown some draft topics on the list; however, its heavily biased towards the things I am aware are happening or in discussion. Feel free to add things that I've missed. Sometime shortly prior to the meeting, I'll try to reorder the list based on expressed interest in each topic. Jonathan From owner-freebsd-transport@freebsd.org Fri May 5 07:20:56 2017 Return-Path: Delivered-To: freebsd-transport@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 0FB19D5E8F7 for ; Fri, 5 May 2017 07:20:56 +0000 (UTC) (envelope-from gnn@neville-neil.com) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id EA8C9A0E for ; Fri, 5 May 2017 07:20:55 +0000 (UTC) (envelope-from gnn@neville-neil.com) Received: by mailman.ysv.freebsd.org (Postfix) id E9FC3D5E8F6; Fri, 5 May 2017 07:20:55 +0000 (UTC) Delivered-To: transport@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id E9B05D5E8F5 for ; Fri, 5 May 2017 07:20:55 +0000 (UTC) (envelope-from gnn@neville-neil.com) Received: from relay9-d.mail.gandi.net (relay9-d.mail.gandi.net [IPv6:2001:4b98:c:538::199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id B48A8A0C for ; Fri, 5 May 2017 07:20:52 +0000 (UTC) (envelope-from gnn@neville-neil.com) Received: from relay6-d.mail.gandi.net (relay6-d.mail.gandi.net [217.70.183.198]) by relay9-d.mail.gandi.net (Postfix) with ESMTPS id CD2EF4059B; Fri, 5 May 2017 09:20:49 +0200 (CEST) Received: from mfilter10-d.gandi.net (mfilter10-d.gandi.net [217.70.178.139]) by relay6-d.mail.gandi.net (Postfix) with ESMTP id 4D11AFB8B1; Fri, 5 May 2017 09:20:49 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at mfilter10-d.gandi.net Received: from relay6-d.mail.gandi.net ([IPv6:::ffff:217.70.183.198]) by mfilter10-d.gandi.net (mfilter10-d.gandi.net [::ffff:10.0.15.180]) (amavisd-new, port 10024) with ESMTP id lUnbHDJcPGnT; Fri, 5 May 2017 09:20:47 +0200 (CEST) X-Originating-IP: 131.111.5.146 Received: from [192.168.56.1] (global-5-146.nat-2.net.cam.ac.uk [131.111.5.146]) (Authenticated sender: gnn@neville-neil.com) by relay6-d.mail.gandi.net (Postfix) with ESMTPSA id 9EE73FB8D0; Fri, 5 May 2017 09:20:47 +0200 (CEST) From: "George Neville-Neil" To: "Hannes Mehnert" Cc: transport@freebsd.org Subject: Re: dupliceated icmp echo request Date: Fri, 05 May 2017 08:20:46 +0100 Message-ID: In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; format=flowed X-Mailer: MailMate (1.9.6r5347) X-BeenThere: freebsd-transport@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Discussions of transport level network protocols in FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 May 2017 07:20:56 -0000 On 13 Sep 2016, at 16:39, Hannes Mehnert wrote: > hello, > > (sorry in case this is the wrong mailing list) > > while doing some network testing, I discovered that my FreeBSD > (r304285, > but likely earlier + released ones as well) sends out two > (bytewise-)identical ICMP echo requests shortly after each other when > I > ping the broadcast (IPv4) address on an interface [tested with: > tap,em,iwm]. > > This behaviour does not meet my expectations - is there any specific > reason for this behaviour; it behaves well (sending out a single ICMP > echo request) if I ping a unicast host. > This got lost in my inbox. Definitely happens on 11, and I think it's a bug. Looking into it now. Please create a PR and assign it to me. Best, George