From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2992986AbXEBJza (ORCPT ); Wed, 2 May 2007 05:55:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S2992984AbXEBJza (ORCPT ); Wed, 2 May 2007 05:55:30 -0400 Received: from nz-out-0506.google.com ([64.233.162.225]:44280 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2992986AbXEBJz3 (ORCPT ); Wed, 2 May 2007 05:55:29 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=VffyjdsAV9143zf6D+aspeNlhNgb5Ye/F6kpUu6NoJAA5WDakCLQe5CGma/vVUmKumreDPQ9GSfRA/QmnqioFgqf23Fhs6suGumqNMCuoWgiSoVgkM/NruVimcJ/xNxaQZkmtDg5gD9y/c/ifIz+jf3rlMFyL+qZyc37TVuV7i0= Message-ID: <47ed01bd0705020255x3a05cabbo955b4e980771b92@mail.gmail.com> Date: Wed, 2 May 2007 05:55:28 -0400 From: "Dylan Taft" To: linux-kernel@vger.kernel.org Subject: Strange UDP Issue on 2.6.20.8 - broadcasts not being received if socket bound to local ip MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I've been pulling my hair out for the past several hours trying to debug a program in wine. I'm currently on kernel 2.6.20.8. The problem was that I was not getting any broadcasts to 255.255.255.255 on a UDP socket bound to 192.168.0.8 with SO_BROADCAST enabled. I was fiddling around a bit, broadcasts come in fine if the socket is bound to INADDR_ANY( 0.0.0.0), but if it's bound to 192.168.0.8 nothing comes in. I did a packet sniff, and indeed packets were being sent out to 255.255.255.255 via another machine on the network. I wrote a quick test program that would bind a socket to the lan ip and wait for incoming data. I tested it on a windows machine and linux. The windows machine could pick up packets fine, my linux machine could not. Is this proper behavior? It's fudging up several games and things in the wine project. Does anyone else experience this? Thanks! Dylan Taft