From owner-freebsd-net@freebsd.org Sat Jan 16 19:39:08 2016 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id E3597A84797 for ; Sat, 16 Jan 2016 19:39:07 +0000 (UTC) (envelope-from gerrit.kuehn@aei.mpg.de) Received: from umail.aei.mpg.de (umail.aei.mpg.de [194.94.224.6]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 741D11E38; Sat, 16 Jan 2016 19:39:07 +0000 (UTC) (envelope-from gerrit.kuehn@aei.mpg.de) Received: from mailgate.aei.mpg.de (mailgate.aei.mpg.de [194.94.224.5]) by umail.aei.mpg.de (Postfix) with ESMTP id 25D8720009E; Sat, 16 Jan 2016 20:38:59 +0100 (CET) Received: from mailgate.aei.mpg.de (localhost [127.0.0.1]) by localhost (Postfix) with SMTP id 7CAA1405882; Sat, 16 Jan 2016 20:38:56 +0100 (CET) Received: from intranet.aei.uni-hannover.de (ahin1.aei.uni-hannover.de [130.75.117.40]) by mailgate.aei.mpg.de (Postfix) with ESMTP id E7E72405881; Sat, 16 Jan 2016 20:38:55 +0100 (CET) Received: from comet.terra.ger ([87.168.194.71]) by intranet.aei.uni-hannover.de (IBM Domino Release 9.0.1FP5) with ESMTP id 2016011620384822-105446 ; Sat, 16 Jan 2016 20:38:48 +0100 Date: Sat, 16 Jan 2016 20:38:48 +0100 From: Gerrit =?ISO-8859-1?Q?K=FChn?= To: Ben Woods Cc: Guido Falsi , freebsd-net@freebsd.org Subject: Re: upnp/dlna Message-Id: <20160116203848.0a66bfbeb7a0389caa8090c3@aei.mpg.de> In-Reply-To: References: <20160115145225.e0dbde9632d5122df8acbb41@aei.mpg.de> <5699161C.1010009@FreeBSD.org> <20160115204304.a284c92bb8aa72d24cdc26ae@aei.mpg.de> <5699583F.3090203@FreeBSD.org> <20160116090935.59998823cb75c5cd49c94180@aei.mpg.de> X-Mailer: Sylpheed 3.4.3 (GTK+ 2.24.22; amd64-portbld-freebsd9.3) Mime-Version: 1.0 X-MIMETrack: Itemize by SMTP Server on intranet/aei-hannover(Release 9.0.1FP5|November 22, 2015) at 16/01/2016 20:38:48, Serialize by Router on intranet/aei-hannover(Release 9.0.1FP5|November 22, 2015) at 16/01/2016 20:38:58, Serialize complete at 16/01/2016 20:38:58 X-TNEFEvaluated: 1 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII X-PMX-Version: 6.0.2.2308539, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2016.1.16.193019 X-PerlMx-Spam: Gauge=IIIIIIIII, Probability=9%, Report=' MULTIPLE_RCPTS 0.1, HTML_00_01 0.05, HTML_00_10 0.05, MIME_LOWER_CASE 0.05, BODYTEXTP_SIZE_3000_LESS 0, BODY_SIZE_1400_1499 0, BODY_SIZE_2000_LESS 0, BODY_SIZE_5000_LESS 0, BODY_SIZE_7000_LESS 0, NO_URI_HTTPS 0, REFERENCES 0, __ANY_URI 0, __BOUNCE_CHALLENGE_SUBJ 0, __BOUNCE_NDR_SUBJ_EXEMPT 0, __CT 0, __CTE 0, __CT_TEXT_PLAIN 0, __FRAUD_BODY_WEBMAIL 0, __FRAUD_WEBMAIL 0, __HAS_FROM 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __INT_PROD_COMP 0, __IN_REP_TO 0, __MIME_TEXT_ONLY 0, __MIME_VERSION 0, __MULTIPLE_RCPTS_CC_X2 0, __REFERENCES 0, __SANE_MSGID 0, __SUBJ_ALPHA_NEGATE 0, __TO_MALFORMED_2 0, __URI_NO_PATH 0, __URI_NO_WWW 0, __URI_NS ' X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 16 Jan 2016 19:39:08 -0000 On Sat, 16 Jan 2016 11:10:02 +0100 Ben Woods wrote: BW> I would test the WLAN access point, and make sure it is passing BW> multicast traffic between the wired and wireless interfaces. I had already tested that by using cables instead of WLAN (most of my radios have an extra ethernet port). But meanwhile I had the feeling that the desktop switch might be causing the issues. It took me some time to set up tests and rewire the network here. I think the WLAN access point (actually a FritzBox router) is not the culprit (at least not alone). Everything works fine now when I plug the DLNA server and my FreeBSD desktop box directly into the LAN ports of the FritzBox. This leaves me with the impression that indeed my desktop switch is causing the issues. According to the manual it does not support IGMP at all, maybe this is the reason for all the trouble? Makes me wonder why it worked before, though. I replaced an older WLAN access point with the FritzBox a couple of days ago, but I think DLNA worked right after that. Maybe the clients somehow cached the servers they knew about, and the issues only started popping up days later when rebooting them? Another difference is that the old WLAN access point did not have an ethernet switch built-in. Now that I have two switches connected, would IGMP be required between them to pass the multicast packages around properly? cu Gerrit