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=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 9F8EEC433E0 for ; Sun, 17 May 2020 08:51:40 +0000 (UTC) Received: from krantz.zx2c4.com (krantz.zx2c4.com [192.95.5.69]) (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 18E7A205CB for ; Sun, 17 May 2020 08:51:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 18E7A205CB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=pineview.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=wireguard-bounces@lists.zx2c4.com Received: by krantz.zx2c4.com (ZX2C4 Mail Server) with ESMTP id eaff07da; Sun, 17 May 2020 08:36:58 +0000 (UTC) Received: from mail.pineview.net (mail.pineview.net [203.33.246.11]) by krantz.zx2c4.com (ZX2C4 Mail Server) with ESMTPS id a475e5d4 (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO) for ; Sun, 17 May 2020 08:36:56 +0000 (UTC) Received: from HigherTime.pineview.net (HigherTime.pineview.net [203.33.246.62]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits)) (No client certificate requested) by mail.pineview.net (Postfix) with ESMTPSA id EBB8480072; Sun, 17 May 2020 18:20:35 +0930 (ACST) Subject: Re: Significant Dropped Packets on WG interface To: Roman Mamedov Cc: WireGuard mailing list References: <21e7d9c5-1d0d-efc0-e698-f59325960df1@pineview.net> <20200514141508.294bf88c@natsu> From: Mike O'Connor Autocrypt: addr=mike@pineview.net; prefer-encrypt=mutual; keydata= mQGiBD4b8L4RBACiRiGuVGTs1gf7StsJVp5NsWzmCko3Sx4dsRziVB9ri4ySeJb3VKeLJrYf cPfPC/ZGdLQnPMjNHdVFxuAXBmcqTvWpXYW/9Je1gqeKbqyYrCvi16/aFTdsC/D3QFKQrJyj Hd/E+uGIYLtbyRAdDotjQZYRWbo7i5ulThdlw7fz5wCgt/szt2+bZdsBeGLpV56WZHr2p5ED /3pL6WXbKfqbZusUU4n07ciAiGTXIYFqoF6OoRnexxBqQuK1Q0FijycYfuJVz9iKvmO0KIu5 ReFZ8GejO3mVCJGQKHgmA7DOnw62vm8P4x8CfautZQ09Fb02oejY3bAFT4CU9EWFfS/NLGsz dePNrykK/Z0R/ShIkSX51Nh3a5OpA/9UQsGRQRwStHPFVzLmCMR/xPU1H07WNDWuqfq8YcTO simy+QFvouO1exiCMlpRHcaW7BxB2vCFPpPFV5QVeeR/fZHFqdkmQXfO9yXJm1qV7Bv6W02D E16jYtHTKIpOdu1A6ycwm8i9gTBpVgaVRFrtN7pv6FK5el1KaayQsSylR7QqTWlrZSBPJ0Nv bm5vciAoTWV0aG9zKSA8bWlrZUBwaW5ldmlldy5uZXQ+iFcEExECABcFAj4b8L4FCwcKAwQD FQMCAxYCAQIXgAAKCRB+BB/s5hgU9ZCIAJ9wrsTmNEN+Xvgm7Qx30Y9yoOUHLwCghj2H72K0 AxNkypCdF05CMawm9ai5AQwEPhvwwxAEAP2H/vtSktXg8HeU1G/5537WEpD/1wS+3eDt2awG jMF1Kr+pe2HNuxcAViiXgeNRkIQyw3ZWXYP1yrzCENqvc2fMXt9s6JlpXa4cIhLtVpfFytwb d9hE/j+NcHhEdi/jVliq6AKp4ilJgdw0vvf+GP5Ryl1hOlJlw0YA2y0K5HOHAAMHA/jSVXHd biCX3xYGV4UeX1Az9WITqq47pzN2/slBruDlG3dds0W9Tr9UpAXimEo3JRHMssQDMkUiCIRA 51uypAvggiDqV7oVKif98fzaRKR+9/MRdOigilrmLufmFUVsRuoI/faf+yPfCD+qllf10FYF 5k1kxYQubpVtMISASJXDiEYEGBECAAYFAj4b8MMACgkQfgQf7OYYFPU2BwCfUuCCZEGJGQzU CR6WbqLMiZmnAUAAnRdKTSZFQfYeGTJmND+hOmobAb0+uQINBEQ3FhMQCADDdH4VBpELQpgn sO/5Ww7QQoQJxeHcEaHljQpoY6bJWMtrmWuSi8AOmDS+OqOq121OOEn2y02GLN7fbM6y/Jzj wpFJkOSeu4KToF2BQDQycOVB8AuH8v87GJmUjXDoVcqs32vSeEB0m2IkKYTSUxNbhp2suusP wGd1wjYvXOkvLlkSt9hpfMq74wBoAB2s2y8jwNT6elRrz1yvS1solYMgEeKzxessij66CeV6 eCzTSLZodvCZkLz7H39DS7M1vE4x5kREDJXVkxsMKGfzAdAY1o7Y2vjB8o5A5j9T+2DzRuV+ CuwmHOc9B4EAxIxzA9zdfc+ek+G8HXxQa5MtUlq3AAMFCACIVnhWdCavBkgerNfV5fRBQXM3 kiNCNYLxf3TTkPpqV5c3WggnuUl7gedcvSOqWDt2K0Y1FL2oY2SjI1PNyC09Ts+wfd0+8IEM SZCEAYLYvhC9VChqWqWtyam5yIgy2ox6EJhnc5U7lHImNokCkG5d3H7/8bMDJpULKCuu7Otk 2Fjh/TkoCKCtr4y9HHrqUZvz0BQzRbY4XSyxo+FC/gk4T69Pgf19WBkUBx8XUeuPZU6Giv/P 3zV1ZwpMVqEnu/bPLNBbz6rpk//nq6Tp6rz8JksR6SF4L+oZbNODLC7PVcMmJsFInNEYbXt2 3S9AAsaiwCHYBbxmwS89+xbRTpQ9iEkEGBECAAkFAkQ3FhMCGwwACgkQfgQf7OYYFPWXWwCf eoco/Qk2hCPcWaAUIasIykRHyFgAn3dGUAaORgqhBBVrEcuAAyyoFKIm Message-ID: <9b569ea3-47cb-1011-a613-6a49d68a047a@pineview.net> Date: Sun, 17 May 2020 18:20:35 +0930 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 MIME-Version: 1.0 In-Reply-To: <20200514141508.294bf88c@natsu> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Content-Language: en-US X-BeenThere: wireguard@lists.zx2c4.com X-Mailman-Version: 2.1.30rc1 Precedence: list List-Id: Development discussion of WireGuard List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: wireguard-bounces@lists.zx2c4.com Sender: "WireGuard" Hi All So after dropping all the way down to 1364 I'm still getting a lot of dropped packets, only at one end. A ping test using 'ping -M do -s 1472 IP' works from both directions but 1473 does not. I really think there is something else wrong, but I had no idea what. Mike On 14/5/20 6:45 pm, Roman Mamedov wrote: > On Thu, 14 May 2020 16:35:30 +0930 > Mike O'Connor wrote: > >> Hi All >> >> For the last few weeks my Wireguard link which I use to as my default >> gateway has been having issues with TCP connections stalling. >> >> I've been trying to work out what is wrong. I just noticed that the >> Wireguard link has dropped packets at both ends. >> >> wg-p2p    Link encap:UNSPEC  HWaddr >> 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 >>           inet addr:104.127.123.10  P-t-P:103.127.123.10  >> Mask:255.255.255.248 >>           inet6 addr: 2506:c500:ff4:1::ab/64 Scope:Global >>           inet6 addr: fe80::e6/64 Scope:Link >>           UP POINTOPOINT RUNNING NOARP  MTU:1500  Metric:1 > Reduce MTU of the WG interfaces to accomodate for overhead. See > https://www.mail-archive.com/wireguard@lists.zx2c4.com/msg01856.html for > calculations of by how much. > >>           inet6 addr: 2506:c500:ff4:1::aa/64 Scope:Global > I wonder what's this IP range, is this some VPN service? Squatting on > unassigned IPs within 2000::/3 seems like a very bad practice. If they wanted > an imaginary GUA for their NAT66, I'd suggest something like 66::/16 instead. >