From owner-freebsd-net@freebsd.org Tue Dec 15 23:08:23 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 DD59AA4919E for ; Tue, 15 Dec 2015 23:08:23 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from mail-in2.apple.com (mail-out2.apple.com [17.151.62.25]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id C5CD810A1 for ; Tue, 15 Dec 2015 23:08:23 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from relay5.apple.com (relay5.apple.com [17.128.113.88]) by mail-in2.apple.com (Apple Secure Mail Relay) with SMTP id B1.D9.22498.06D90765; Tue, 15 Dec 2015 15:08:16 -0800 (PST) X-AuditID: 11973e11-f79a96d0000057e2-c8-56709d6052a2 Received: from [17.149.230.112] (Unknown_Domain [17.149.230.112]) (using TLS with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by relay5.apple.com (Apple SCV relay) with SMTP id 7F.98.07593.06D90765; Tue, 15 Dec 2015 15:08:16 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 9.2 \(3112\)) Subject: Re: arp response fails From: Charles Swiger In-Reply-To: <5670988B.5030905@field.hu> Date: Tue, 15 Dec 2015 15:08:16 -0800 Cc: freebsd-net@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: <6EBC3FD9-3DA9-416A-A3AE-77A22B436121@mac.com> References: <5670988B.5030905@field.hu> To: bcs X-Mailer: Apple Mail (2.3112) X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrDLMWRmVeSWpSXmKPExsUi2FAYoZswtyDMYPs7S4uHa6+yW3zY0c7k wOTxftISNo8Zn+azBDBFcdmkpOZklqUW6dslcGWcOq5WMJu14tTTB0wNjBNYuhg5OSQETCQm zv/KDGGLSVy4t56ti5GLQ0hgL6PE40/74Yo2H53ODpGYziRxYv93RpAEs4CWxI1/L5lAbF4B PYkTq3azgtjCAvIS59dvBWrm4GATUJOYMJEHJMwpoCHxtHUbWDmLgKpE+/SHjCAlzALSEgv+ xEBM1JZYtvA1M0iYV8BKYvdSFZCwkIC6xJPWnWDDRQQkJbbdm8gKcZmsxL4NC8BOlhD4yCrx 8+Zv5gmMQrOQHDcLyXGzkKxYwMi8ilEoNzEzRzczz0gvsaAgJ1UvOT93EyMoeKfbCe5gPL7K 6hCjAAejEg/vhciCMCHWxLLiytxDjNIcLErivJ/CgEIC6YklqdmpqQWpRfFFpTmpxYcYmTg4 pRoYYycstxRaUNx3L5S/Q/fbEe3Ivjd/kll+LpuymLlk2mffk745UTdcnSPZdnOwnPuk8y+s zHTjTwV/Vy3LN8vF3ttd78ytfbzqkczylapKS/6erV/8ojD8eviMy19ZxQ/ssYxawKZu4883 O2T6bkXtZoVei/oZG3OOeW+KVd0refDBkn/9G9/WK7EUZyQaajEXFScCACTD54U/AgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprPLMWRmVeSWpSXmKPExsUiOPVZgW7C3IIwgwV/TSwerr3KbvFhRzuT A5PH+0lL2DxmfJrPEsAUxWWTkpqTWZZapG+XwJVx6rhawWzWilNPHzA1ME5g6WLk5JAQMJHY fHQ6O4QtJnHh3nq2LkYuDiGB6UwSJ/Z/ZwRJMAtoSdz495IJxOYV0JM4sWo3K4gtLCAvcX79 VqBBHBxsAmoSEybygIQ5BTQknrZuAytnEVCVaJ/+kBGkhFlAWmLBnxiIidoSyxa+ZgYJ8wpY SexeqgISFhJQl3jSuhNsuIiApMS2exNZIS6Tldi3YQHbBEb+WUjumYXknllIpi5gZF7FKFCU mpNYaaqXWFCQk6qXnJ+7iREUbA2FETsY/y+zOsQowMGoxMOrEVMQJsSaWFZcmXuIUYKDWUmE tzseKMSbklhZlVqUH19UmpNafIhRmoNFSZxX3BooJZCeWJKanZpakFoEk2Xi4JRqYFS+Kp/W WbiOx0pOILUv0JSnQSbgqcifz2+fCy/wdSyTX618Y85LPWvhB1ZPn76SCszOiXNzlP55UNL2 6WdbLyXnv3e6HeNa3M98ktT+M4dPWquJo2Mb09sjzRbHTPjbD09WXcX9Y0PJ3B1eap4+7edv uFz3/x4yfV4nQ4f50e/prv67z034osRSnJFoqMVcVJwIAO9W7PEyAgAA 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 23:08:24 -0000 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, --=20 -Chuck