From owner-freebsd-net@FreeBSD.ORG  Tue Dec 23 20:39:05 2008
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: net@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 7D53B1065670
	for <net@freebsd.org>; Tue, 23 Dec 2008 20:39:05 +0000 (UTC)
	(envelope-from gnn@neville-neil.com)
Received: from proxy.meer.net (proxy.meer.net [64.13.141.13])
	by mx1.freebsd.org (Postfix) with ESMTP id 5D5098FC38
	for <net@freebsd.org>; Tue, 23 Dec 2008 20:39:05 +0000 (UTC)
	(envelope-from gnn@neville-neil.com)
Received: from mail.meer.net (mail.meer.net [64.13.141.3])
	by proxy.meer.net (8.14.2/8.14.2) with ESMTP id mBNKRc26026323
	for <net@freebsd.org>; Tue, 23 Dec 2008 12:27:38 -0800 (PST)
	(envelope-from gnn@neville-neil.com)
Received: from mail2.meer.net (mail2.meer.net [64.13.141.16])
	by mail.meer.net (8.13.3/8.13.3/meer) with ESMTP id mBNKRTLV001714
	for <net@freebsd.org>; Tue, 23 Dec 2008 12:27:29 -0800 (PST)
	(envelope-from gnn@neville-neil.com)
Received: from gnnbsd.hudson-trading.com.neville-neil.com
	(209.249.190.8.available.above.net [209.249.190.8] (may be forged))
	(authenticated bits=0)
	by mail2.meer.net (8.14.1/8.14.1) with ESMTP id mBNKRTe2086522
	for <net@freebsd.org>; Tue, 23 Dec 2008 12:27:29 -0800 (PST)
	(envelope-from gnn@neville-neil.com)
Date: Tue, 23 Dec 2008 15:27:28 -0500
Message-ID: <7ihc4u3adr.wl%gnn@neville-neil.com>
From: gnn@freebsd.org
To: net@freebsd.org
User-Agent: Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.8
	(=?ISO-8859-4?Q?Shij=F2?=) APEL/10.7 Emacs/22.3
	(amd64-portbld-freebsd7.1) MULE/5.0 (SAKAKI)
MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka")
Content-Type: text/plain; charset=US-ASCII
X-Canit-CHI2: 0.50
X-Bayes-Prob: 0.5 (Score 0, tokens from: )
X-Spam-Score: 0.10 () [Tag at 5.00] COMBINED_FROM
X-CanItPRO-Stream: default
X-Canit-Stats-ID: 2804731 - 004197740fec
X-Scanned-By: CanIt (www . roaringpenguin . com) on 64.13.141.13
Cc: 
Subject: A new tool for low level testing...
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 23 Dec 2008 20:39:05 -0000

Hi,

I just checked in a small tool to HEAD in
/usr/src/tools/tools/ether_reflect which uses pcap and bpf to reflect
ethernet packets just about the driver layer without involving the
protocol stacks.  This is useful for people doing low level testing of
drivers and switches.  If you happen to be lucky enough to have an
ethernet packet generator (ixia et al) this will do what you want in
terms of reflecting the packets back.

Later,
George