From owner-freebsd-questions@FreeBSD.ORG  Mon Oct 31 20:37:26 2005
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
X-Original-To: freebsd-questions@freebsd.org
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id EC13E16A420
	for <freebsd-questions@freebsd.org>;
	Mon, 31 Oct 2005 20:37:26 +0000 (GMT)
	(envelope-from bohra@cs.rutgers.edu)
Received: from mail.nec-labs.com (mail.nec-labs.com [138.15.200.209])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 7834343D48
	for <freebsd-questions@freebsd.org>;
	Mon, 31 Oct 2005 20:37:25 +0000 (GMT)
	(envelope-from bohra@cs.rutgers.edu)
Received: from mail.nec-labs.com (mail [138.15.200.209])
	by mail.nec-labs.com (8.13.0/8.13.0) with ESMTP id j9VKbPLf024964
	for <freebsd-questions@freebsd.org>; Mon, 31 Oct 2005 15:37:25 -0500
Received: from mailer.nec-labs.com (mailer.nec-labs.com [138.15.108.3])
	by mail.nec-labs.com (8.13.0/8.13.0) with ESMTP id j9VKbO89024958
	for <freebsd-questions@freebsd.org>; Mon, 31 Oct 2005 15:37:24 -0500
Received: from [138.15.104.242] ([138.15.104.242] unverified) by
	mailer.nec-labs.com with Microsoft SMTPSVC(5.0.2195.6713); 
	Mon, 31 Oct 2005 15:38:05 -0500
Message-ID: <436681DD.2070001@cs.rutgers.edu>
Date: Mon, 31 Oct 2005 15:43:09 -0500
From: Aniruddha Bohra <bohra@cs.rutgers.edu>
User-Agent: Mozilla Thunderbird 1.0.2 (X11/20050426)
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: freebsd-questions@freebsd.org
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-OriginalArrivalTime: 31 Oct 2005 20:38:05.0230 (UTC)
	FILETIME=[FEBF4CE0:01C5DE5A]
Subject: Writing raw PPP packets
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 31 Oct 2005 20:37:27 -0000

Hello all,
    From the bpf(4) manpage :

A packet can be sent out on the network by writing to a bpf file descrip-
     tor.  The writes are unbuffered, meaning only one packet can be 
processed
     per write.  Currently, only writes to Ethernets and SLIP links are sup-
     ported.


    Is it possible to direct IP packets to the PPP interface without the 
kernel
routing the packets? This is for a case where the default address to a
host is over another interface and I want to force some packets through 
the PPP
interface.

Thanks
Aniruddha