Date: Tue, 17 Jan 2012 20:08:48 +0100 From: Matthias Apitz <guru@unixarea.de> To: freebsd-net@freebsd.org Subject: PPP to UMTS provider && incoming traffic (TCP, UDP) Message-ID: <20120117190847.GA1255@tiny>
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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 <guru@unixarea.de> - 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
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