From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vlad Yasevich Subject: Re: skb configured but can't get data allocated Date: Wed, 12 Sep 2007 16:12:37 -0400 Message-ID: <46E84835.1040206@hp.com> References: <200709121731456120c5e4ad@mail.smumn.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, kernelnewbies@nl.linux.org To: DHAJOGLO Return-path: Received: from atlrel8.hp.com ([156.153.255.206]:35709 "EHLO atlrel8.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753804AbXILUM7 (ORCPT ); Wed, 12 Sep 2007 16:12:59 -0400 In-Reply-To: <200709121731456120c5e4ad@mail.smumn.edu> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org You may want to read this page: http://vger.kernel.org/~davem/skb.html You will then see you problem. Essentially, you are writing your data into an area that is never sent. What you are end up is this: --------------------------------------------- | your data| space | ll-header | IPv4 header| --------------------------------------------- -vlad