From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from korolev.univ-paris7.fr (korolev.univ-paris7.fr [IPv6:2001:660:3301:8000::1:2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 84BCD3CB37 for ; Wed, 28 Feb 2024 15:35:12 -0500 (EST) Received: from mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [81.194.30.253]) by korolev.univ-paris7.fr (8.14.4/8.14.4/relay1/82085) with ESMTP id 41SKZ6gO017859; Wed, 28 Feb 2024 21:35:06 +0100 Received: from mailhub.math.univ-paris-diderot.fr (localhost [127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTP id E9B40ABCE8; Wed, 28 Feb 2024 21:35:05 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=irif.fr; h= content-type:content-type:mime-version:user-agent:references :in-reply-to:subject:subject:from:from:message-id:date:date :received:received; s=dkim-irif; t=1709152504; x=1710016505; bh= sEyIafoSX/3LRYDDrZDkQH+HKS9pCEIKTFaH5EWUHHM=; b=JY/0JcNQ2E4DX6IA BQmcCzbwcwCGjxCdTm04zp6RB0AasalxDEeFNMUIojnrkJmq+FyrBv7qA3RmuKJ3 8jzuqEbnsPlLDimuQk75BsQcBouNumXymGqgscvsryBjVLP4rA3vwCWvzl9nl1E3 wG70OJ19tlvJ/yYgysRR5mf8M2kUM2do9aR5zWjJnT1TaQIEtqWljTnTytjXiNU+ 9JWZmGjYzEfgbwzlsxCXQ3puBFixPn/uJYvhVE0MJ91+0TMfZVX5L+CszPlWfh5+ raQ8UsjYrfOMmzYtBnWKUkNq7AIX8WQiEmzzgWfKK3vInVCw3kOTn9S0+4D9HiWl qM37Gg== X-Virus-Scanned: amavisd-new at math.univ-paris-diderot.fr Received: from mailhub.math.univ-paris-diderot.fr ([127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id M188zVX-Uk7M; Wed, 28 Feb 2024 21:35:04 +0100 (CET) Received: from pirx.irif.fr (unknown [78.194.40.74]) (Authenticated sender: jch) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTPSA id F148FABDED; Wed, 28 Feb 2024 21:35:03 +0100 (CET) Date: Wed, 28 Feb 2024 21:35:03 +0100 Message-ID: <87frxcqqdk.wl-jch@irif.fr> From: Juliusz Chroboczek To: David Lang Cc: Rich Brown , bloat@lists.bufferbloat.net In-Reply-To: <8s2q08r1-p4s0-2pns-3s2q-334s7np6947o@ynat.uz> References: <30F7E4EF-906B-41CD-9EDE-179106E8BFCF@gmail.com> <874jdsizp5.wl-jch@irif.fr> <8s2q08r1-p4s0-2pns-3s2q-334s7np6947o@ynat.uz> User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/29.2 Mule/6.0 MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (korolev.univ-paris7.fr [194.254.61.138]); Wed, 28 Feb 2024 21:35:07 +0100 (CET) X-Miltered: at korolev with ID 65DF98FA.000 by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)! X-j-chkmail-Enveloppe: 65DF98FA.000 from mailhub.math.univ-paris-diderot.fr/mailhub.math.univ-paris-diderot.fr/null/mailhub.math.univ-paris-diderot.fr/ X-j-chkmail-Score: MSGID : 65DF98FA.000 on korolev.univ-paris7.fr : j-chkmail score : . : R=. U=. O=. B=0.000 -> S=0.000 X-j-chkmail-Status: Ham Subject: Re: [Bloat] mDNS 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: Wed, 28 Feb 2024 20:35:12 -0000 >> I'm not sure how that could happen at boot time, it would need to >> happen whenever a DHCPv4 lease changes. This implies that the router >> might need to renumber if the ISP changes its allocation, and there are >> no renumbering procedures for IPv4 (I'm not sure if anyone implements >> RFC 3203). > it's unusual for the network block to change on a renewal, At any rate, boot time is too early, since you don't know your ISP-assigned address at that point. You really need to delay until DHCPv4 gets a lease. > and in that rare case you could reboot the router. You don't need to reboot the router, it can renumber just fine. You need to reboot all the client devices (unless they implement DHCPv4 force renew with nonce authentication, aka RFC 3203). I'm not saying it's a bad idea, just pointing out some of the edge-cases that you will need to consider in order to get a robust implementation. -- Juliusz