From owner-freebsd-virtualization@freebsd.org Thu Dec 7 12:42:57 2017 Return-Path: Delivered-To: freebsd-virtualization@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id C9079E85BA6 for ; Thu, 7 Dec 2017 12:42:57 +0000 (UTC) (envelope-from djfarid@gmail.com) Received: from mail-wm0-x243.google.com (mail-wm0-x243.google.com [IPv6:2a00:1450:400c:c09::243]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 738463C53 for ; Thu, 7 Dec 2017 12:42:57 +0000 (UTC) (envelope-from djfarid@gmail.com) Received: by mail-wm0-x243.google.com with SMTP id g75so12942251wme.0 for ; Thu, 07 Dec 2017 04:42:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=VxeI1Dr4UwShEiuy9HUeNzKxrmRpf81Y0Jw1DZtvoFs=; b=p+1uTSx0bn/JqLv2LZMFWO4BHVNvq6rJWLW4MwDUOzEZEcgIP9u7ySD+jZa5prj5He 5hBhEqbg2P02f3PCVz7WUdtFuguwugxNUk0THdeh3kWMua+CJ83FKQDYVizPVC/T3UZw Z+aqEKdAsRKbQZ+h4FQAPNi8httxeGQ8nbrYFosAsmm/pc89Cnsf/o119+AcYjWyyzIp 6/yMBcYN5bLuCJO23LZ48M3KpoNLblxyU3bzERnU0U9cg52SSAk0Zvi8hEkGgGAc+hMz MFoH7jhUbwb6/kPf2Tc3ySDlWZwDgGcNfv20ZFX2NauphQtgR8sxpHQ9rtliSEG152VJ ecCw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=VxeI1Dr4UwShEiuy9HUeNzKxrmRpf81Y0Jw1DZtvoFs=; b=Efr86YPIuTp0nGgia6KxnMr1Y3K8w0zj4i4oOjEln3+M7KSuCUcUy3niEYacwyFrb9 OxeA5rQCW/LI0gO0EPKwjImOEEng7SUgzpoIUSbRS5BPvDXzw54rW3f547v+GbahYn66 HgB5Fj4WmLbWDiEC7Me8E3hdrqeGYtK55ssE0Jk9YAXDMW7W8C4a6gc4H4arPe25N8VI 8qkERT8PsnMxEUkUJRAVL0tM4QSx1mabwgEOlKziGs6xDke2OFjQ1ekIdjkiH/Uf4G1m 1CUwq49C38fu9iPrGo/WkIyPBRt8GlDkDW19d+63jBsnaYO8bWsj+nOMRzBiRQIbk+Ah TEwg== X-Gm-Message-State: AJaThX5S1JaA8nSTqAbSe6ZUTqLEMkU2399MFcLe8Y0XUyf7YFwhAg6b SUAok+1r9dyp2vXUAjZE524qLl30mp58ez/CHNlYxzrU X-Google-Smtp-Source: AGs4zMYKhcudKqYyIUKj8trfLpAHP1H2/Q7ZMgWYbmUBJ70MStAFP2MS3qdKQZ4kHRzHhxk7A4zwDC+679TJoR4oiPM= X-Received: by 10.80.214.139 with SMTP id r11mr45859681edi.17.1512650575654; Thu, 07 Dec 2017 04:42:55 -0800 (PST) MIME-Version: 1.0 Received: by 10.80.139.70 with HTTP; Thu, 7 Dec 2017 04:42:55 -0800 (PST) From: Farid Joubbi Date: Thu, 7 Dec 2017 13:42:55 +0100 Message-ID: Subject: dhcpd: Failed to send 300 byte long packet To: freebsd-virtualization@freebsd.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.25 X-BeenThere: freebsd-virtualization@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: "Discussion of various virtualization techniques FreeBSD supports." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 07 Dec 2017 12:42:57 -0000 Hi, I am running bhyve on FreBSD 11.1-RELEASE-p4. I use vm to control the virtual machines. I have several machines running. Two of them are configured with the same template, one Linux Mint and one RHEL 7.4. Both of them receive their IP address through DHCP. For some reason the RHEL server is dropping it's address and becomes unavailable on the network after a while. When that happens /var/log/messages on the FreeBSD server is spammed with this: dhcpd: send_packet: Host is down dhcpd: dhcp.c:3976: Failed to send 300 byte long packet over fallback interface. This never happens with the machine running Linux Mint. dhcpd is running on the same FreeBSD server as bhyve. This is the output of "vm vonfigure rhel": uefi="yes" cpu=2 memory=4G network0_type="virtio-net" network0_switch="lan" disk0_type="ahci-hd" disk0_name="disk0.img" graphics="yes" xhci_mouse="yes" graphics_res="1600x900" uuid="cfc832cb-d8c9-11e7-8255-9418823456dc" network0_mac="58:9c:fc:08:21:a8" # vm switch info ------------------------ Virtual Switch: lan ------------------------ type: manual ident: bridge0 vlan: - nat: - physical-ports: - bytes-in: 7839031548 (7.300G) bytes-out: 33012227886 (30.745G) virtual-port device: tap0 vm: rhel virtual-port device: tap1 vm: linuxmint Any ideas of what is causing this?