From mboxrd@z Thu Jan 1 00:00:00 1970 From: Curt Sampson Subject: Re: Problems Receiving UDP Broadcasts on Some Versions of Linux Date: Wed, 27 Jan 2010 09:37:46 +0900 Message-ID: <20100127003744.GA16322@analytic.cynic.net> References: <20100125072749.GG21419@analytic.cynic.net> <4B5D51E6.5090601@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-kernel@vger.kernel.org, Linux Netdev List To: Eric Dumazet Return-path: Content-Disposition: inline In-Reply-To: <4B5D51E6.5090601@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.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