Bug#500512: linphone: sends a wrong "contact address" => registration fails

[Nicolas Boullis]

Package: linphone
Version: 2.1.1-1+b1
Severity: important

Hi,

I have a SIP server on a private network, a laptop with linphone 
installed, and a VPN tunnel between both.

When linphone tries to register on the private SIP server, regitration 
fails.

Thanks to wireshark, I can see that linphone tries to register with a 
wrong "contact address": the IP in this contact address is the "local" 
IP of my laptop, not the IP in the tunnel.

Using strace, I could figure out that the local IP is discovered with:

socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 11
setsockopt(11, SOL_SOCKET, SO_BROADCAST, [1], 4) = 0
connect(11, {sa_family=AF_INET, sin_port=htons(11111), sin_addr=inet_addr("217.12.3.11")}, 16) = 0
getsockname(11, {sa_family=AF_INET, sin_port=htons(38988), sin_addr=inet_addr("192.168.0.2")}, [16]) = 0
close(11) = 0

I have no idea why it connects to 217.12.3.11 rather than my SIP server 
to find out the correct IP...

FWIW, the (private) IP of my SIP server is 192.168.18.7, the "local" IP 
of my laptop is 192.168.0.2 (on a NATted wifi network) and its tunnel IP 
is 192.168.63.6.
The registration packets are sent as expected from 192.168.63.6 to 
192.168.18.7; but the embedded "contact address" is nboullis at 192.168.0.2 
(while I guess it should be nboullis at 192.168.63.6).

In the linphone SIP configuration, I tried to disable "Automatically 
guess a valid hostname" and force my sip address to 
nboullis at 192.168.63.3, but it did not make any difference. What is this 
option worth?


Cheers,

Nicolas

-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (800, 'testing'), (700, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.25-2-686 (SMP w/1 CPU core)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/dash

Versions of packages linphone depends on:
ii  libasound2                1.0.16-2       ALSA library
ii  libatk1.0-0               1.22.0-1       The ATK accessibility toolkit
ii  libavcodec51              3:20080706-0.2 library to encode decode multimedi
ii  libavutil49               3:20080706-0.2 avutil shared libraries
ii  libc6                     2.7-13         GNU C Library: Shared libraries
ii  libcairo2                 1.6.4-6        The Cairo 2D vector graphics libra
ii  libglib2.0-0              2.16.5-1       The GLib library of C routines
ii  libgsm1                   1.0.12-1       Shared libraries for GSM speech co
ii  libgtk2.0-0               2.12.11-3      The GTK+ graphical user interface 
ii  liblinphone2              2.1.1-1+b1     linphone's shared library part (su
ii  libmediastreamer0         2.1.1-1+b1     linphone web phone's media library
ii  libogg0                   1.1.3-4        Ogg Bitstream Library
ii  libortp7                  2.1.1-1+b1     Real-time Transport Protocol stack
ii  libosip2-3deb             3.1.0-1        Session Initiation Protocol (SIP) 
ii  libpango1.0-0             1.20.5-2       Layout and rendering of internatio
ii  libraw1394-8              1.3.0-4        library for direct access to IEEE 
ii  libspeex1                 1.2~rc1-1      The Speex codec runtime library
ii  libspeexdsp1              1.2~rc1-1      The Speex extended runtime library
ii  libtheora0                1.0~beta3-1    The Theora Video Compression Codec
ii  libvorbis0a               1.2.0.dfsg-3.1 The Vorbis General Audio Compressi
ii  libvorbisenc2             1.2.0.dfsg-3.1 The Vorbis General Audio Compressi
ii  linphone-nox              2.1.1-1+b1     SIP softphone - console-only clien

linphone recommends no packages.

Versions of packages linphone suggests:
ii  yelp                          2.22.1-8   Help browser for GNOME 2

-- no debconf information