From owner-freebsd-isp Sat Mar 24 19:28:26 2001 Delivered-To: freebsd-isp@freebsd.org Received: from smtp012.mail.yahoo.com (smtp012.mail.yahoo.com [216.136.173.32]) by hub.freebsd.org (Postfix) with SMTP id EF4F937B71E for ; Sat, 24 Mar 2001 19:28:23 -0800 (PST) (envelope-from bytehedd@yahoo.com) Received: from d83b5f53.dsl.flashcom.net (HELO ghetto) (216.59.95.83) by smtp.mail.vip.sc5.yahoo.com with SMTP; 25 Mar 2001 03:28:23 -0000 X-Apparently-From: Message-ID: <003b01c0b4db$86655800$0201a8c0@nonstandard.net> From: "Anthony Volodkin" To: Subject: Bridging on FreeBSD - loss of data in packets. Date: Sat, 24 Mar 2001 22:27:30 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Hi, Today I setup bridging on a Freebsd 4.2 machine with dual Intel EEPRO100s. Added the kernel option, set the sysctl variables, and setup ipfw to allow all traffic (got my info from here: http://people.freebsd.org/~nsayer/bdg-ipfw.txt ) Then i connected another machine to fxp1 via a crossover cable. Fxp0 is connected to the rest of the network. When I try to ping any machine on the other side of the bridge from the box behind it, most of my packets (149 of 150 pings) get lost. Occasionally a few make it through. I decided to tcpdump on the bridge to see if I can see anything unusual. Here's what grabbed my attention: 20:27:33.722272 truncated-ip - 38 bytes missing!10.10.9.1 > 10.10.9.2: icmp: echo request (DF) 20:27:59.511615 truncated-ip - 14 bytes missing!10.10.9.1.1887 > d83b5f53.dsl. flashcom.net.http: S 3132881080:3132881080(0) win 5840 (DF) There were LOTS of these from the 10.10.9.1, the box behind the router! I guess they are the reason its not working. The only reason I can think of is the fact that the box behind the bridge is equipped with a 10Mbit card while the bridge itself has 100Mbit cards. Has anyone else ever had this problem? What can I do to diagnose this further, or fix it? Any input is highly appreciated. Thanks! Anthony Volodkin http://non-standard.net/ _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message