From owner-freebsd-questions Thu Nov 16 0:22: 8 2000 Delivered-To: freebsd-questions@freebsd.org Received: from roc.jmu.edu (roc.jmu.edu [134.126.10.50]) by hub.freebsd.org (Postfix) with ESMTP id 3E1F437B479 for ; Thu, 16 Nov 2000 00:22:06 -0800 (PST) Received: from artvandelay.jmu.edu ([134.126.151.39]) by roc.jmu.edu (8.8.8/8.8.8) with ESMTP id DAA27439; Thu, 16 Nov 2000 03:18:46 -0500 (EST) From: "Batra, Lalit M" Date: Thu, 16 Nov 2000 03:19:08 -0500 To: questions@freebsd.org, unix -jmu Subject: tcpdump: bad file format Message-ID: X-Mailer: Execmail for Win32 Version 5.0.1 Build (55) MIME-Version: 1.0 Content-Type: Text/Plain; charset="us-ascii" Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG HI! I am doing some network experimenst(FREEBSD), Using Tcpdump.I cannot convert the tcpdump "output.dmp" into binary form so thatt i can use Tcptrace and then xplot to see the packets. Following are the steps which i am doing:- 1) tcpdump -i xl1 host 192.168.20.2 > output.dmp 2) tcpdump -r output.dmp ERROR: bad dump file format.???? I have also tried -w option , same error. :-> 192.168.20.2 is the host address in my network. When i Do ctrl-c , it shows me how many packets captured and droped by kernel. ANy hints.I really need this urgently? -- Batra, Lalit M batralm@jmu.edu To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message