From owner-freebsd-questions@FreeBSD.ORG Fri Aug 15 21:25:18 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 645531065672 for ; Fri, 15 Aug 2008 21:25:18 +0000 (UTC) (envelope-from bsd@hackbox.bunker-ranch.org) Received: from hackbox.bunker-ranch.org (bunker-ranch.org [206.169.89.124]) by mx1.freebsd.org (Postfix) with ESMTP id 3359C8FC1F for ; Fri, 15 Aug 2008 21:25:17 +0000 (UTC) (envelope-from bsd@hackbox.bunker-ranch.org) Received: from hackbox.bunker-ranch.org (localhost.bunker-ranch.org [127.0.0.1]) by hackbox.bunker-ranch.org (8.13.3/8.13.3) with ESMTP id m7FL3RG4096721 for ; Fri, 15 Aug 2008 14:03:27 -0700 (MST) (envelope-from bsd@hackbox.bunker-ranch.org) Received: (from bsd@localhost) by hackbox.bunker-ranch.org (8.13.3/8.13.3/Submit) id m7FL3Rxl096720 for freebsd-questions@freebsd.org; Fri, 15 Aug 2008 14:03:27 -0700 (MST) (envelope-from bsd) Date: Fri, 15 Aug 2008 14:03:27 -0700 (MST) From: "Terry R. Friedrichsen" Message-Id: <200808152103.m7FL3Rxl096720@hackbox.bunker-ranch.org> To: freebsd-questions@freebsd.org Subject: TCP problem FreeBSD 7.0/amd64 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Aug 2008 21:25:18 -0000 I recently built a new machine with a Gigabyte GA-MA790X-DS4 motherboard and an AMD 9750 Phenom quad CPU. The Ethernet interface is a RealTek "RTL8169S/8110S/8211B media interface" as described by dmesg. I installed FreeBSD 7.0/amd64. I have been having a number of network problems with this system. I first noticed that Firefox was getting "incorrect Message Authentication Code" messages. I thought this might be a Firefox problem, but I noticed on a couple of other web sites that filling in message-posting pages occasion- ally failed with "not all requested fields filled in" for no reason (a simple retry wucceeded). The kicker came when I tried to use scp(1) to copy some files over the Internet to a remote machine: % scp *.JPG foo@remote.host:images Password: MVC00001.JPG 22% 152KB 152.0KB/s 00:03 ETAReceived disconnect from nnn.nnn.nnn.nnn: 2: Corrupted MAC on input. lost connection % scp *.JPG foo@remote.host:images Password: MVC00001.JPG 0% 0 0.0KB/s --:-- ETARead from remote host remote.host: Connection reset by peer lost connection % scp *.JPG foo@remote.host:images Password: MVC00001.JPG 0% 0 0.0KB/s --:-- ETAReceived disconnect from nnn.nnn.nnn.nnn: 2: Bad packet length 3694804283. lost connection I have seen other "Bad packet length" messages with different lengths given. I suspect a bug in the RealTek's driver, but I don't know for sure. Any suggestions? Where's the proper place to report this, and what further information could I provide in order to help track this down? Thanks. Terry R. Friedrichsen bsd@bunker-ranch.com