From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yw1-x112d.google.com (mail-yw1-x112d.google.com [IPv6:2607:f8b0:4864:20::112d]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id AFCB33B29E for ; Tue, 30 Jul 2024 11:54:25 -0400 (EDT) Received: by mail-yw1-x112d.google.com with SMTP id 00721157ae682-654cf0a069eso31101427b3.1 for ; Tue, 30 Jul 2024 08:54:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1722354865; x=1722959665; darn=lists.bufferbloat.net; h=to:date:message-id:subject:mime-version:content-transfer-encoding :from:from:to:cc:subject:date:message-id:reply-to; bh=d0TgXbCYv+T37yLtf95ulPob5d/RB1c1+nrhRq7aIUM=; b=UG+u6zkQLXhwqeSA/SlNcdWKNBHv54l6p6/lCZRhy2aCINlHL4Xzqu4zZZNGQhbd6n tX0Lv00rXSlL4Yl8NXZlQLr42s2vnoQypf8cfL3y9082VnY4UreHdJV5OxlT5mOzQgp7 i07IxNzbb/gXXyPiwfVSIWy04/HUluQ25mNxszRfPHi/30A3kiD2BfNjET9MYb97/MmX kaGDjAPVNXshbd4OlkPE6XSpt2+7G6/VeZrulaeYMuZrel5E59hhszdXBH8whCBnIYpb cxmBUwtVO3RIBMSM4NghW0CdO0kMKWdEgD5jOyiRt6VevCPSqBtIZe0pQQvA3fwMFnx2 W8TA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1722354865; x=1722959665; h=to:date:message-id:subject:mime-version:content-transfer-encoding :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=d0TgXbCYv+T37yLtf95ulPob5d/RB1c1+nrhRq7aIUM=; b=RUZ5MPpXsPjaruWO7m80MILhf2dEEhMcEUdlHrdO/zjQbTp8GufmvSDvTrhjuOgikw rWDdJzMpDK3DJ+eY43OWZRejkn5+Q97En0xYJwwm6RarkM33l68nOeWiMfzr4bpQTMax U6AgxIjXb8vHGTJQRSo72zlO/leycqKffeycHkijPePtz4ZpCK+QC0uWJlNnjNW1rUxp ms8q9r41Mb4XzfZZ5o13NPpf0bgTpS0rhh+HD+3WRvAWrYPmqDSmLFAk+8xWKzOlZWiy BAczYJ9PX8eS3vfzrxI7xwEGiJ4020foEWIjTbmBkSLjvFazQDIacJNUpfUXqFbES+NM rpmw== X-Gm-Message-State: AOJu0YxCVsq/HrR24mOeYdM1mDIeCv74rHw5IZvddc3Hv1RDIV8cejq9 BV2T0S+mpXExJPsgWT2dZJ6nuh/MKL03rv1hf8qNVZJaNST4rC4S8jA3bQ== X-Google-Smtp-Source: AGHT+IE8YAJzAAUwTbj3AjQd/LCEf8r5ZON1p/E6+itjLKi2fekfSShs4zLPno9tN0yTFPITw8GwLQ== X-Received: by 2002:a81:87c7:0:b0:64a:4c2c:f4c2 with SMTP id 00721157ae682-67a057b8955mr126352007b3.6.1722354864925; Tue, 30 Jul 2024 08:54:24 -0700 (PDT) Received: from smtpclient.apple ([2600:2b00:8a4e:1f00:f0ea:b2b9:35e6:f9c7]) by smtp.gmail.com with ESMTPSA id 00721157ae682-6756b9be42fsm25417447b3.105.2024.07.30.08.54.24 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 30 Jul 2024 08:54:24 -0700 (PDT) From: vom513 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3776.700.51\)) Message-Id: <20F36EB0-E6AC-40BF-B5D6-3F63F510EC11@gmail.com> Date: Tue, 30 Jul 2024 11:54:14 -0400 To: bloat@lists.bufferbloat.net X-Mailer: Apple Mail (2.3776.700.51) Subject: [Bloat] SQM scripts seems to break dhcpv6 client X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 30 Jul 2024 15:54:25 -0000 Hello all, This one was (and kind of still is) a head scratcher. I am running sqm-scripts on my Debian 12 Linux firewall - installed = from: https://github.com/tohojo/sqm-scripts For DHCPv6 client I use wide-dhcpv6-client (dhcp6c). I run simple.qos, and it=E2=80=99s on a Chelsio 10G adapter. I have = disabled all the fancy offload on my WAN port on this card (seemed to = cause kernel issues/oopses with sqm running). I have two internet connections at home (primary and backup). My interface config: UPLINK=3D380000 DOWNLINK=3D380000 SCRIPT=3Dsimple.qos Backup and primary config are the same except for UPLINK/DOWNLINK = values. I use nftables, and am very careful about making sure I an letting in = ICMPv6 (ND RA etc), as well as DHCPv6. In fact all my policies are = default accept (I use manual cleanup/block rules at the ends of them). On my primary provider, I don=E2=80=99t seem to have any issues. = Something about the DHCPv6 packets from my backup provider - it seems = like the packets are =E2=80=9Ceaten=E2=80=9D. I can see them come in = via tcpdump, they just never make it to my client daemon. After tons of hair pulling (our primary is having a known outage this = morning, so I kicked to backup) - I decided to reboot with no SQM. After doing this - I get my IPv6 addresses on all interfaces like = normal/expected. Any thoughts on this ? I really like SQM scripts and want to keep it = working, but if I have to choose I will choose having full dual-stack = working :( Thanks in advance.=