From owner-freebsd-net@FreeBSD.ORG Tue Jan 17 19:08:07 2012 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9C9A21065676 for ; Tue, 17 Jan 2012 19:08:07 +0000 (UTC) (envelope-from guru@unixarea.de) Received: from ms16-1.1blu.de (ms16-1.1blu.de [89.202.0.34]) by mx1.freebsd.org (Postfix) with ESMTP id 5C3EC8FC1A for ; Tue, 17 Jan 2012 19:08:07 +0000 (UTC) Received: from [82.113.121.173] (helo=tiny.Sisis.de) by ms16-1.1blu.de with esmtpsa (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.69) (envelope-from ) id 1RnEO5-00045O-SE for freebsd-net@freebsd.org; Tue, 17 Jan 2012 20:08:06 +0100 Received: from tiny.Sisis.de (localhost [127.0.0.1]) by tiny.Sisis.de (8.14.5/8.14.3) with ESMTP id q0HJ8nf9001281 for ; Tue, 17 Jan 2012 20:08:51 +0100 (CET) (envelope-from guru@unixarea.de) Received: (from guru@localhost) by tiny.Sisis.de (8.14.5/8.14.3/Submit) id q0HJ8moG001280 for freebsd-net@freebsd.org; Tue, 17 Jan 2012 20:08:48 +0100 (CET) (envelope-from guru@unixarea.de) X-Authentication-Warning: tiny.Sisis.de: guru set sender to guru@unixarea.de using -f Date: Tue, 17 Jan 2012 20:08:48 +0100 From: Matthias Apitz To: freebsd-net@freebsd.org Message-ID: <20120117190847.GA1255@tiny> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Operating-System: FreeBSD 10.0-CURRENT r226986 (i386) User-Agent: Mutt/1.5.21 (2010-09-15) X-Con-Id: 51246 X-Originating-IP: 82.113.121.173 Subject: PPP to UMTS provider && incoming traffic (TCP, UDP) X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Matthias Apitz List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 Jan 2012 19:08:07 -0000 Hello, I'm used to connect my FreeBSD 10-CURRENT netbook to Internet via PPP; the provider in question is a German O2 UMTS provider; so far so good, i.e. all is working as it should: outbound HTTP, SSH, SMTP (I'm just sending this mail through such a connection), ... what does not work is VoIP; the call is established via SIP (using a STUN server), but remote audio RTP packages are not coming down; I checked this with TCPDUMP: only upstream RTP is send, no incoming UDP; as well I checked incoming TCP, for example incoming SSH or HTTP; it seems that incoming UCP/TCP is just not coming through the PPP link; before bother (complain) the provider with this, I wanted to ask if I miss something in the PPP configuration to get incoming delivered; note: I'm not talking about NAT to some stations on a LAN, I just want get IP to the local host (interface tun6); as well I disabled ipf(8) which I have configured normaly; any ideas? thanks in advance matthias -- Matthias Apitz e - w http://www.unixarea.de/ UNIX since V7 on PDP-11, UNIX on mainframe since ESER 1055 (IBM /370) UNIX on x86 since SVR4.2 UnixWare 2.1.2, FreeBSD since 2.2.5