Re: [Linphone-users] Fwd: Re: [redhat.com #1263208] Linphone on the internal RH SIP

[Simon Morlat]

Indeed.
Thank you Enrique. The modification I did was that the hostname/ipaddress given 
as firewall address is used within SIP messages (before it was only used in 
SDP).
Note that this should not be necessary to do all that if the SIP proxy is NAT-
capable. If using openser and its clones, you have to use a configuration that 
uses "nat_helper". I can provide one if needed.

Simon

PS: I'd like to make a new release. There have been lots of change and 
improvements, especially in the UI.

Le mardi 1 septembre 2009 08:36:02, Enrique Otero a écrit :
> Hi Matej,
>
> This bug with linphone and VPN was fixed on the subversion repository
>
> |(||svn://svn.sv.gnu.org/linphone) |by Simon Morlat (revision 463 May
>
> 6). Unfortunately this changes have not been still released to a new
> Linphone version (last release 3.1.2 is dated May 5).
>
> Regards,
> Enrique
>
> Matěj Cepl escribió:
> > Hi, this is the result of my dialog with our SIP support guys.
> > Apparently, linphone gets confused and offers my internal LAN address
> > (192.168.1.*) instead of VPN one. The result is that it the
> > registration to the internal SIP server fails (Not Found) and when
> > calling the contact inside of RH VPN I get "Service Unavailable". It
> > doesn't matter whether I use an internal STUN server or use my IP
> > address directly (this VPN connection is not NATed).
> >
> > This is the only showstopper for using linphone as my main SIP client
> > (the only other working SIP client for me is Twinkle, and I really
> > don't like KDE apps on my machine). There are some other problems
> > (e.g., for many users STUN/direct IP/etc. setting should be
> > per-account, not per-program preference, many UI glitches), but
> > fortunately non other is a showstopper for me.
> >
> > What do you think?
> >
> > Matěj
> >
> > -------- Původní zpráva --------
> > Předmět:    Re: [redhat.com #1263208] Linphone on the internal RH SIP
> > Datum:      Mon, 31 Aug 2009 16:23:14 -0400
> > Od:         Joe Micciche via RT <address@hidden>
> > Přeposláno - Komu:  address@hidden
> > Komu:       address@hidden
> >
> > On 08/31/2009 03:24 PM, Matej Cepl via RT wrote:
> > > Dne 31.8.2009 20:39, Joe Micciche via RT napsal(a):
> > >> Hi Matej, is it possible to get a tcpdump from your machine from when
> > >> you start Linphone through to attempting a call? The txt file doesn't
> > >> give me the depth of information I'd like to have in order to analyze
> > >> this.
> > >
> > > Is this what you want?
> > >
> > > Matěj
> >
> > Matej, many thanks for capturing this, the dump is quite helpful.
> >
> > I have extracted only the packets relevant to your client attempt to
> > register to and call from our internal systems - this file is attached.
> >
> > In short, the dialog begins between your client, 10.36.4.214 on vpn, and
> > our registrar, 10.32.8.32, at Packet #75.
> >
> > The client sends the REGISTER request, but the client SIP stack is
> > setting your Via: and Contact: address to 192.168.1.2:5060. This is the
> > core problem, obviously 192. is neither valid nor routable.
> >
> > Linphone's exosip stack should set your request IP's to the vpn IP, not
> > to the un-NAT-ed IP of your machine.
> >
> > Please let me know if you need more detail or would like to do more
> > troubleshooting.
> >
> > --
> > ==================================================================
> >
> > ------------------------------------------------------------------------
> >
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> > http://lists.nongnu.org/mailman/listinfo/linphone-users
>
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