From owner-freebsd-net@freebsd.org Tue Dec 15 23:13:27 2015 Return-Path: Delivered-To: freebsd-net@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 49D3AA4952F for ; Tue, 15 Dec 2015 23:13:27 +0000 (UTC) (envelope-from bimmer@field.hu) Received: from green.field.hu (green.field.hu [217.20.130.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 09F8E1588 for ; Tue, 15 Dec 2015 23:13:26 +0000 (UTC) (envelope-from bimmer@field.hu) Received: from green.field.hu (localhost [127.0.0.1]) by green.field.hu (Postfix) with ESMTP id E56A7250ADE for ; Wed, 16 Dec 2015 00:13:24 +0100 (CET) X-Virus-Scanned: by Amavisd-new at field.hu Received: from green.field.hu ([127.0.0.1]) by green.field.hu (green.field.hu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id eTqdtoG8mN5C for ; Wed, 16 Dec 2015 00:13:22 +0100 (CET) Received: from [192.168.52.16] (1F2EC6DD.catv.pool.telekom.hu [31.46.198.221]) by green.field.hu (Postfix) with ESMTPA id E4A85250AE7 for ; Wed, 16 Dec 2015 00:13:21 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=field.hu; s=mail; t=1450221201; bh=EiErRAixMj9EXauV9IJt6Y+ttyviW5aqqsaXCSXBDXA=; h=Date:From:To:Subject:References:In-Reply-To; b=JxtIUny4wlLmVneZbkTQ07Jq1T20QXcmyeEGMl6xTg+YmkOMgLpJZZtaHIxoB1alX ouEqinoIaLY+yivON9lH8FJNnPqqazv019+rp0j1EjG0ceVLFzdQ6I2338kn56DcWr wEObcTqwpjH5ZfUminU9zkMsjZfbJcrV3iTJK/yA= Message-ID: <56709E8F.7060504@field.hu> Date: Wed, 16 Dec 2015 00:13:19 +0100 From: bcs User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: freebsd-net@freebsd.org Subject: Re: arp response fails References: <5670988B.5030905@field.hu> <6EBC3FD9-3DA9-416A-A3AE-77A22B436121@mac.com> In-Reply-To: <6EBC3FD9-3DA9-416A-A3AE-77A22B436121@mac.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Dec 2015 23:13:27 -0000 Hi Charles, [root@myhost /]# sysctl -a | grep arp net.link.ether.inet.log_arp_permanent_modify: 1 net.link.ether.inet.log_arp_movements: 1 net.link.ether.inet.log_arp_wrong_iface: 1 I am all ears if you can give me hint how to tune the network if it's not ok. Buggy NIC is very possible, I have other problem with "em" driver. The server has Intel® 82579LM nic. 2015. 12. 16. 0:08 keltezéssel, Charles Swiger írta: > On Dec 15, 2015, at 2:47 PM, bcs wrote: >> I have 3 FreeBSD 10.2-RELEASE machines and all of them suffers of the following problem. They are not responding to ARP requests which causes network problem for me, other hosts can't access my FBSD machines on the LAN nor my FBSD hosts can see each other unless I add permanent arp entry. > My first guess is a misconfigured firewall. > What does "sysctl -a | grep arp" show? > > (Your network tuning is probably extreme except for specialized situations, > but it shouldn't prevent basic ARP from working. Buggy NICs or iLO / LOM are > another possibility.) > > Regards,