From owner-freebsd-net Fri Sep 29 9:18:18 2000 Delivered-To: freebsd-net@freebsd.org Received: from whale.sunbay.crimea.ua (whale.sunbay.crimea.ua [212.110.138.65]) by hub.freebsd.org (Postfix) with ESMTP id 5079837B422 for ; Fri, 29 Sep 2000 09:18:14 -0700 (PDT) Received: (from ru@localhost) by whale.sunbay.crimea.ua (8.9.3/1.13) id TAA48229; Fri, 29 Sep 2000 19:18:02 +0300 (EEST) Date: Fri, 29 Sep 2000 19:18:01 +0300 From: Ruslan Ermilov To: Ping Yuan Cc: freebsd-net@freebsd.org Subject: Re: IP header. Message-ID: <20000929191801.D47327@sunbay.com> Mail-Followup-To: Ping Yuan , freebsd-net@freebsd.org References: <005c01c02a2e$f93387e0$42042a80@teddy.ece.rice.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0i In-Reply-To: <005c01c02a2e$f93387e0$42042a80@teddy.ece.rice.edu>; from pyuan@ece.rice.edu on Fri, Sep 29, 2000 at 11:04:39AM -0500 Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Fri, Sep 29, 2000 at 11:04:39AM -0500, Ping Yuan wrote: > Hi, > > I am now writing a traffic generator. I want to write something in the IP > header of every packet before I send it out. Is this possible? If yes, how > to implement it? If not, is there any other solutions? > You can do that by constructing an IP packet with header and sending it to raw IP socket with IP_HDRINCL socket option set. See ip(4) page for details. Cheers, -- Ruslan Ermilov Oracle Developer/DBA, ru@sunbay.com Sunbay Software AG, ru@FreeBSD.org FreeBSD committer, +380.652.512.251 Simferopol, Ukraine http://www.FreeBSD.org The Power To Serve http://www.oracle.com Enabling The Information Age To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message