From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <s.hanreich@proxmox.com> Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id C7737BE7B for <pve-devel@lists.proxmox.com>; Wed, 13 Sep 2023 15:48:47 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id A28EA1F2D6 for <pve-devel@lists.proxmox.com>; Wed, 13 Sep 2023 15:48:47 +0200 (CEST) Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [94.136.29.106]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS for <pve-devel@lists.proxmox.com>; Wed, 13 Sep 2023 15:48:46 +0200 (CEST) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id 9A1E446EE7; Wed, 13 Sep 2023 15:48:46 +0200 (CEST) Message-ID: <b0043eb8-b626-5c9e-4096-a9dbaa1a146f@proxmox.com> Date: Wed, 13 Sep 2023 15:48:45 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.15.0 Content-Language: en-US To: "DERUMIER, Alexandre" <alexandre.derumier@groupe-cyllene.com>, "pve-devel@lists.proxmox.com" <pve-devel@lists.proxmox.com>, "t.lamprecht@proxmox.com" <t.lamprecht@proxmox.com> References: <20230908134304.2009415-1-s.hanreich@proxmox.com> <2fd1071602ad075d4580d62565fc757e4bd92a91.camel@groupe-cyllene.com> <d047f4fd-bdba-c7d9-64b6-5dfd5e5faccb@proxmox.com> <3e766920-35e9-4acf-a9fa-f3b56fe0408e@proxmox.com> <7980640a-da18-9da7-88cb-f8602c9339d4@proxmox.com> <5708827d07ec44793cccda18d75a66562a093bc0.camel@groupe-cyllene.com> <e2293496-8e93-d42a-bf7a-316ac6b8ee8e@proxmox.com> <30aa87542f4b615aa9f1295b170f26eb8c146ba6.camel@groupe-cyllene.com> From: Stefan Hanreich <s.hanreich@proxmox.com> In-Reply-To: <30aa87542f4b615aa9f1295b170f26eb8c146ba6.camel@groupe-cyllene.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-SPAM-LEVEL: Spam detection results: 0 AWL 1.180 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment NICE_REPLY_A -1.473 Looks like a legit reply (A) SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Subject: Re: [pve-devel] [RFC cluster/manager/network 0/6] Add support for DHCP servers to SDN X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion <pve-devel.lists.proxmox.com> List-Unsubscribe: <https://lists.proxmox.com/cgi-bin/mailman/options/pve-devel>, <mailto:pve-devel-request@lists.proxmox.com?subject=unsubscribe> List-Archive: <http://lists.proxmox.com/pipermail/pve-devel/> List-Post: <mailto:pve-devel@lists.proxmox.com> List-Help: <mailto:pve-devel-request@lists.proxmox.com?subject=help> List-Subscribe: <https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel>, <mailto:pve-devel-request@lists.proxmox.com?subject=subscribe> X-List-Received-Date: Wed, 13 Sep 2023 13:48:47 -0000 On 9/13/23 15:21, DERUMIER, Alexandre wrote: > Can't we have simply an infinite lease time, > and simply remove leases manually from dhcp + delete ip from ipam at vm > stop/delete ? Wouldn't this cause problems if we remove the lease at stop? * VM 1 gets IP X via DHCP on start * We stop VM 1 and remove the lease for IP X from the IPAM * VM 2 starts some time after and we reserve IP X for it * We restart VM 1 and reserve some other IP Y, but the VM will never send a DHCP request to our DHCP server again, since it is convinced that it still owns IP X (since we told the VM that the IP is forever theirs). But VM 2 now also uses IP X.