16 Mar
2008
16 Mar
'08
2:21 a.m.
I've looked over the RFC and the module and while they describe a slightly
different scenario (with a load balancer and separate registrars), it seems
like it should work.
I've added the required parameters to the config:
modparam("registrar", "use_path", 1)
modparam("registrar", "path_mode", 0)
modparam("registrar", "path_use_received", 1)
modparam("path", "use_received", 1)
Then, in my auth section, I store the path:
if (is_method("REGISTER")) {
add_path();
This does not seem to do anything however, the proxy still forwards directly
to the client instead of sending it to the proper outbound proxy. I looked
in the location table and I see path is set to NULL so unless this is stored
in some other place, the proxy would not know where to send it anyway.
Have you used this? Am I doing something wrong? I could not find on this
list or anywhere a sample openser config that uses it...
Thanks.
On Sat, Mar 15, 2008 at 4:12 PM, Iñaki Baz Castillo <ibc(a)aliax.net> wrote:
El Domingo, 16 de Marzo de 2008, Adrian A escribió:
Hi,
I'm setting up multiple OpenSER proxies in different locations to server
a
SIP domain. The proxies use a shared location
database so they always
know
where to send requests to the client when an
incoming call hits either
one.
The clients have the outbound proxy set to
whichever one is closest to
them.
The problem is that because the clients are NAT
they do not receive
the request if the proxy IP that sends it is not the same as the one
they
have set as the outbound proxy. The NAT will
reject the request because
it
does not arrive from the same IP that the
connection was established to.
There is a RFC to solve your problem and a module for OpenSer. It's called
PATH:
- SIP Extension Header Field for Registering Non-Adjacent Contacts :
http://tools.ietf.org/html/rfc3327
- http://www.openser.org/docs/modules/1.3.x/path.html
Also you need to set some options in "registrar" module.
Regards.
--
Iñaki Baz Castillo
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