From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Daum Subject: What is the "ll header" of a PPP Interface? Date: Mon, 05 Oct 2009 11:30:20 +0200 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: netdev@vger.kernel.org Return-path: Received: from lo.gmane.org ([80.91.229.12]:55139 "EHLO lo.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932554AbZJEKum (ORCPT ); Mon, 5 Oct 2009 06:50:42 -0400 Received: from list by lo.gmane.org with local (Exim 4.50) id 1Mul8m-00010z-DV for netdev@vger.kernel.org; Mon, 05 Oct 2009 12:50:04 +0200 Received: from p57a0cff9.dip.t-dialin.net ([87.160.207.249]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 05 Oct 2009 12:50:04 +0200 Received: from gator_ml by p57a0cff9.dip.t-dialin.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 05 Oct 2009 12:50:04 +0200 Sender: netdev-owner@vger.kernel.org List-ID: Hi, I occasionally get syslog messages about "martians" coming in on a PPP interface. Normally, the reported ll header is the 2 involved MAC addresses and the ethernet frame type. For the PPP interface however, the reported ll header is 22 bytes long and I can't find any information about the significance of it. Can somebody here maybe enlighten me? Regards, Peter