From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754220Ab0A0Ahz (ORCPT ); Tue, 26 Jan 2010 19:37:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751305Ab0A0Ahy (ORCPT ); Tue, 26 Jan 2010 19:37:54 -0500 Received: from static-122-103-239-153.ng-fam.svips.gol.ne.jp ([122.103.239.153]:62171 "EHLO priv.dyadic.cynic.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754159Ab0A0Ahx (ORCPT ); Tue, 26 Jan 2010 19:37:53 -0500 Date: Wed, 27 Jan 2010 09:37:46 +0900 From: Curt Sampson To: Eric Dumazet Cc: linux-kernel@vger.kernel.org, Linux Netdev List Subject: Re: Problems Receiving UDP Broadcasts on Some Versions of Linux Message-ID: <20100127003744.GA16322@analytic.cynic.net> Mail-Followup-To: cjs@starling-software.com, linux-kernel@vger.kernel.org, Linux Netdev List References: <20100125072749.GG21419@analytic.cynic.net> <4B5D51E6.5090601@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4B5D51E6.5090601@gmail.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2010-01-25 09:10 +0100 (Mon), Eric Dumazet wrote: > > The short summary is that on two very similar servers on the same > > network, an application that listens for broadcast UDP packets on a > > given port works fine on the Ubuntu 8.04/Linux 2.6.24-26-server box but > > does not receive the packets on the Ubuntu 9.04/Linux 2.6.28-17-server > > box. > > Could you post a sample of tcpdump trafic you receive on the 9.04 > host, and your network config ? "ifconfig -a" I've added both to the end of the StackOverflow entry: http://stackoverflow.com/questions/2130563/udp-broadcast-reception-problems-with-ubuntu-9-04-but-not-8-04 Again, please cc me on any responses; I'm on neither the linux-kernel nor netdev lists. cjs -- Curt Sampson +81 90 7737 2974 http://www.starling-software.com The power of accurate observation is commonly called cynicism by those who have not got it. --George Bernard Shaw