Re: [Linphone-users] where does this »received« come from?

[Simon Morlat]

Hi Lars,

Where did you get this Via header from ?
Wireshark, linphone logs, server logs ?
I would be suprised it is in linphone logs: received= is set by servers
(or the UAS part of the client, but not for registers since linphone
does accept incoming registers).
If it is in the server logs: it might be the server that adds it
automatically to recall where to send the register's response back.
If it is captured with wireshark running on the server's machine, then
that would mean that there is some kind of poorly intelligent NAT
between linphone and kamailio that is trying to make some SIP
proxying....
It arrives sometimes. sips (encrypted sip) would help in getting rid of
these stupid nats, but it's not yet supported in linphone.

Simon

Le mercredi 25 novembre 2009 à 12:45 +0100, Lars Täuber a écrit :
> Hi Bent,
> 
> 
> On Wed, 25 Nov 2009 10:38:13 +0100 Bent Bagger <address@hidden> wrote:
> > Lars Täuber wrote:
> > > 192.168.178.20:6060;rport=6060;branch=z9hG4bK2125513909;received=77.186.81.20^M
> > >
> > > Where does this received IP-address come from?
> > >   
> > A lookup of the recieved IP gives this:
> > 
> > address@hidden:~> dig -x 77.186.81.20
> [...]
> > 
> > Does that give you any clue? Your ISP/SIp registrar?
> 
> no thanks. My question was not clear enough, sorry.
> I meant where does linphone get to know about this ip-address from?
> 
> Linphone contacts a sip registrar that I'm running myself (kamailio) but it 
> registers a different ip address than it should be. The NATted address is 
> similar (from the same subnet) but not the one that's mentioned in the 
> received=.... line. That's why the registrar registers this client with a 
> wrong address. That's one of my problems.
> 
> So my conclusion is there is an additional transparent application level 
> firewall from my provider in between, or what?
> 
> Thanks
> Lars
> 
> 
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