From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751344AbVKQVfo (ORCPT ); Thu, 17 Nov 2005 16:35:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751428AbVKQVfo (ORCPT ); Thu, 17 Nov 2005 16:35:44 -0500 Received: from nikola.com ([64.146.180.228]:22717 "EHLO nikola.com") by vger.kernel.org with ESMTP id S1751344AbVKQVfo (ORCPT ); Thu, 17 Nov 2005 16:35:44 -0500 Message-ID: <00b501c5ebbe$dafc7960$5e00800a@printserver> From: "Jesse Gordon" To: "Jesse Gordon" , References: <200511121616.14940.ace@staticwave.ca> <200511161252.08927.bjorn.helgaas@hp.com> <009401c5eaeb$9a77be00$5e00800a@printserver> Subject: Re: ICMP Ping being lost between kernel and the ping program. (Solved!) Date: Thu, 17 Nov 2005 13:35:39 -0800 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.3790.1830 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.1830 X-Authenticated-Sender: jesseg@nikola.com X-Spam-Processed: nikola.com, Thu, 17 Nov 2005 13:35:37 -0800 (not processed: message from valid local sender) X-MDRemoteIP: 64.146.180.228 X-Return-Path: jesseg@nikola.com X-MDaemon-Deliver-To: linux-kernel@vger.kernel.org X-MDAV-Processed: nikola.com, Thu, 17 Nov 2005 13:35:39 -0800 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org ----- Original Message ----- "Jesse Gordon" wrote: >Subject: ICMP Ping being lost between kernel and the ping program. > > Greetings. This is my first post. > > I'm having a weird intermittent problem with ping. > > I'm pinging the WAN port of a cheap home DSL firewall (d-link di-604) and > sometimes the ping program fails to get a response, > but if I run tcpdump I can see that the response is indeed coming back. > .. snip .. > -Jesse Solved. The Dlink firewalls were responding with stale ICMP Identifier when pinged a second time, and the ping program was ignoring the responses which had a stale Identifier. The windows box always works because it always uses the same number for Identifier. Ugh. Thanks! -Jesse