From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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) server-digest SHA256) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id 1AD09814E2 for ; Tue, 23 Nov 2021 21:07:07 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 074CC1822A for ; Tue, 23 Nov 2021 21:06:37 +0100 (CET) Received: from smtp-out01.mutu.shrd.fr (smtp-out01.mutu.shrd.fr [194.187.224.13]) by firstgate.proxmox.com (Proxmox) with ESMTP id B243C1821E for ; Tue, 23 Nov 2021 21:06:35 +0100 (CET) Received: from www02.mutu.shrd.fr (www02.mutu.shrd.fr [194.187.224.16]) by smtp-out01.mutu.shrd.fr (Postfix) with ESMTP id 721F58ED5 for ; Tue, 23 Nov 2021 20:58:35 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by www02.mutu.shrd.fr (Postfix) with ESMTP id 2419831590D; Tue, 23 Nov 2021 20:58:35 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at www02.mutu.shrd.fr Received: from www02.mutu.shrd.fr ([127.0.0.1]) by localhost (www02.mutu.shrd.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id XpRdf-V6n2RI; Tue, 23 Nov 2021 20:58:34 +0100 (CET) Received: from smtpclient.apple (unknown [194.187.225.181]) (Authenticated sender: lists@benappy.com) by www02.mutu.shrd.fr (Postfix) with ESMTPSA id A65B9315908; Tue, 23 Nov 2021 20:58:34 +0100 (CET) From: ic Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 15.0 \(3693.20.0.1.32\)) Date: Tue, 23 Nov 2021 20:58:33 +0100 Message-Id: <47BB1F6A-23C7-40EB-B046-A78F6D2FBB62@benappy.com> To: PVE User List X-Mailer: Apple Mail (2.3693.20.0.1.32) X-SPAM-LEVEL: Spam detection results: 0 AWL -0.700 Adjusted score from AWL reputation of From: address BAYES_05 -0.5 Bayes spam probability is 1 to 5% KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment KAM_LAZY_DOMAIN_SECURITY 1 Sending domain does not have any anti-forgery methods SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_NONE 0.001 SPF: sender does not publish an SPF Record Subject: [PVE-User] ARP issue X-BeenThere: pve-user@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE user list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Nov 2021 20:07:07 -0000 Hi, I=E2=80=99m running PVE 7.0 on a bunch of servers. I noticed something = strange. There is a vmbr2 containing one physical interface (ens19) with an IP = (10.X.Y.Z/24). There is a vmbr1 containing NO physical interface with another IP = (10.A.B.C/24) (outside of the range of vmbr2, even if this is irrelevant = for this problem). Somehow, the other physical servers connected to ens19 get an ARP reply = with the mac address of ens19 for the IP on vmbr1 (which, again, has no = physical interface). In an =E2=80=9Cip a=E2=80=9D output, this mac address appears only in = ens19 and vmbr2. vmbr1 has its own mac (different from the physical mac = of ens19/vmbr2). What am I missing? In my setup I need vmbr2 to have the same IP on each physical host and = not leak on the outside network so this is pretty annoying :( BR, ic