From owner-freebsd-isp Thu Nov 23 22:21:42 2000 Delivered-To: freebsd-isp@freebsd.org Received: from mtu.ru (ns.mtu.ru [195.34.32.10]) by hub.freebsd.org (Postfix) with ESMTP id 4C47837B4CF; Thu, 23 Nov 2000 22:21:37 -0800 (PST) X-Recipient: freebsd-isp@FreeBSD.ORG Received: from pentium (ppp101-137.dialup.mtu-net.ru [212.188.101.137]) by mtu.ru (Postfix) with ESMTP id 97CBE76F9; Fri, 24 Nov 2000 09:21:33 +0300 (MSK) (envelope-from kulakov@kudesniki.ru) Reply-To: From: "Vladimir I. Kulakov" To: , Subject: DOS atack of hardware problem? Date: Fri, 24 Nov 2000 09:21:32 +0300 X-MSMail-Priority: Normal X-Priority: 3 X-Mailer: Microsoft Internet Mail 4.70.1155 MIME-Version: 1.0 Content-Type: text/plain; charset=Windows-1251 Content-Transfer-Encoding: 7bit Message-Id: <20001124062133.97CBE76F9@mtu.ru> Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Hello! Last week I noticed some strange messages in my log files: fxp0 : device timeout After that the ping bacame unstable, and somtimes the server was unreachable. Our we replugged the server from 100 Mbit/s 3com switch to ordinary 10 Mbit/s hub. It helped. The server started to work fine, but a few days after that the problems appeard again. It seems the network card in our server unpedicably swithes from 100 to 10 Mbits and from half-duplex to full duplex. When we plugged the server to uplink port in our swith, everything is working fine again... Our Ethernet card - Intel Ether Express Pro 100/s Can it be a flud or some kind of DOS-atack or it just a hardware problem? I tried another network card (also Ehter Express 100), but it's getting even worse - the server does not work at all. What is the best way to solve such a problem finally? Many thanks in advance... ----------------------------------------------------- Vladimir I. Kulakov http://www.kudesniki.ru/ VK9-RIPN kulakov@kudesniki.ru 2:5020/779.27@fidonet.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message