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=-2.2 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 A112EC433DF for ; Thu, 14 May 2020 07:06:05 +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 12BF4206C0 for ; Thu, 14 May 2020 07:06:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 12BF4206C0 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 a19be98b; Thu, 14 May 2020 06:51:57 +0000 (UTC) Received: from mail.pineview.net (mail.pineview.net [203.33.246.11]) by krantz.zx2c4.com (ZX2C4 Mail Server) with ESMTPS id 05e48f2e (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO) for ; Thu, 14 May 2020 06:51:53 +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 AC34D8013A for ; Thu, 14 May 2020 16:35:30 +0930 (ACST) From: Mike O'Connor Subject: Significant Dropped Packets on WG interface To: WireGuard mailing list 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: <21e7d9c5-1d0d-efc0-e698-f59325960df1@pineview.net> Date: Thu, 14 May 2020 16:35:30 +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 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 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           RX packets:141849 errors:0 dropped:5915 overruns:0 frame:0           TX packets:141626 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1           RX bytes:33771496 (33.7 MB)  TX bytes:14348632 (14.3 MB) wg-p2p    Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00           inet addr:104.127.123.9  P-t-P:103.127.123.9  Mask:255.255.255.248           inet6 addr: 2506:c500:ff4:1::aa/64 Scope:Global           inet6 addr: fe80::dc/64 Scope:Link           UP POINTOPOINT RUNNING NOARP  MTU:1500  Metric:1           RX packets:663287 errors:1 dropped:1433 overruns:0 frame:1           TX packets:1023948 errors:594 dropped:13 overruns:0 carrier:0           collisions:0 txqueuelen:1           RX bytes:110192140 (110.1 MB)  TX bytes:872273836 (872.2 MB) Note the above is after a reboot of both end points (about 4 mins) One end is running a 4.4.0 kernel ii  wireguard                             1.0.20200510-1~16.04                            all          fast, modern, secure kernel VPN tunnel (metapackage) ii  wireguard-dkms                        1.0.20200429-2~16.04                            all          fast, modern, secure kernel VPN tunnel (DKMS version) ii  wireguard-tools                       1.0.20200510-1~16.04                            i386         fast, modern, secure kernel VPN tunnel (userland utilities) The other is ii  wireguard                                 1.0.20200319-1ubuntu1~14.04                          all          fast, modern, secure kernel VPN tunnel (metapackage) ii  wireguard-dkms                            1.0.20200429-1~14.04                                 all          fast, modern, secure kernel VPN tunnel (DKMS version) ii  wireguard-tools                           1.0.20200319-1ubuntu1~14.04                          amd64        fast, modern, secure kernel VPN tunnel (userland utilities) I was thinking of rebuilding the ubuntu 14.04 to a 16.04 (18.04 uses netplan and can be a real pain to setup) I've done my best to check the underlying Internet and I do not think packets are be dropped in general or between the two end points. How do I tell why the packets have been dropped ? What do I need to look at to try to fix this ? Thanks Mike