From owner-freebsd-hackers Thu Jul 25 07:16:44 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id HAA01225 for hackers-outgoing; Thu, 25 Jul 1996 07:16:44 -0700 (PDT) Received: from polaris.canweb.ca (polaris.canweb.ca [204.225.44.2]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id HAA01216 for ; Thu, 25 Jul 1996 07:16:35 -0700 (PDT) Received: (from david@localhost) by polaris.canweb.ca (8.7.5/8.7.3) id KAA08981 Thu, 25 Jul 1996 10:15:23 -0400 (EDT) Date: Thu, 25 Jul 1996 10:15:23 -0400 (EDT) From: David Grant To: didier@omnix.fr.org cc: hackers@freefall.freebsd.org Subject: Re: ftp / tcp problem Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Are you running 100Mbps or 10? If you are using the 100Mpbs cards and a Synoptics (Bay Networks) 28115 10/100Mbps switch, try turning off full duplex on both the card and the switch port. I've read that the full duplex protocol is non standard and can appear as invalid checksum packets to a card that doesn't support it. If your're running 10Mbps then I have no idea! Good luck Dave --- Didier Derny once said: >I've a problem with two FreeBSD 2.1-STABLE machines these machine >has a SMC PCI card (de0 driver). > >I only get 15kb with ftp > >what can I do to solve this problem. I found the result of netstat -s quite >strange. why so many tcp packet have a bad checksum. no errors are detected >by ethernet switch (synoptics) > >Thanks for your help --------- David Grant CanWeb Internet Services Ltd. 519 332 6900 http://www.canweb.ca FAX 519 332 6464