From owner-freebsd-net@FreeBSD.ORG Thu Apr 20 11:27:30 2006 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 215C716A401 for ; Thu, 20 Apr 2006 11:27:30 +0000 (UTC) (envelope-from mallman@icir.org) Received: from wyvern.icir.org (wyvern.icir.org [192.150.187.14]) by mx1.FreeBSD.org (Postfix) with ESMTP id CA49443D46 for ; Thu, 20 Apr 2006 11:27:29 +0000 (GMT) (envelope-from mallman@icir.org) Received: from guns.icir.org (adsl-69-222-35-58.dsl.bcvloh.ameritech.net [69.222.35.58]) by wyvern.icir.org (8.12.11/8.12.11) with ESMTP id k3KBRSTl066860; Thu, 20 Apr 2006 04:27:28 -0700 (PDT) (envelope-from mallman@icir.org) Received: from lawyers.icir.org (guns.icir.org [69.222.35.58]) by guns.icir.org (Postfix) with ESMTP id 1718377AA40; Thu, 20 Apr 2006 07:27:28 -0400 (EDT) Received: from lawyers.icir.org (localhost [127.0.0.1]) by lawyers.icir.org (Postfix) with ESMTP id 1988E3F7E2B; Thu, 20 Apr 2006 07:26:36 -0400 (EDT) To: "Yeow C.H." From: Mark Allman In-Reply-To: <20060417133412.36079.qmail@web60120.mail.yahoo.com> Organization: ICSI Center for Internet Research (ICIR) Song-of-the-Day: Love Stinks MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=_bOundary"; micalg=pgp-sha1; protocol="application/pgp-signature" Date: Thu, 20 Apr 2006 07:26:35 -0400 Sender: mallman@icir.org Message-Id: <20060420112636.1988E3F7E2B@lawyers.icir.org> Cc: freebsd-net@freebsd.org Subject: Re: Libpcap based: packet generator + capture file editor + bridge for IEEE802.3 on FreeBSD X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: mallman@icir.org List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Apr 2006 11:27:30 -0000 --=_bOundary Content-Type: text/plain Content-Disposition: inline > Its capture file editor, bittwiste, allow you to change most fields > in Ethernet, ARP, IP, ICMP, TCP, and UDP headers and you can specify > your own payload. It is possible for the payload to cover the ICMP, > TCP, or UDP header itself (checksum is corrected > automatically). Tcprewrite (part of Tcpreplay suite) allows you to > change src/dst MAC/IP/port only, but, it supports VLAN frames > (Bit-Twist does not). I haven't tried either one of these, but will note that my favorite program in this space - if one wants to hack interactively - is "netdude", which is available from sourceforge. FWIW. allman --=_bOundary Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (Darwin) iD8DBQFER2/rWyrrWs4yIs4RAjQvAJ4z1Tm2KiSl2ATs6xgNN8ItPad1GwCfa36W ZVZ2GfkaE43QA/9Es43HUu4= =1TpJ -----END PGP SIGNATURE----- --=_bOundary--