PRACK and local outbound proxy

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I think that is about what I said in the last e-mail, is it a bug then?

 

 

________________________________

From: pjsip-bounces@xxxxxxxxxxxxxxx
[mailto:pjsip-bounces at lists.pjsip.org] On Behalf Of Gang Liu
Sent: Thursday, February 05, 2009 12:48 PM
To: pjsip list
Subject: Re: PRACK and local outbound proxy

 

from RFC 3261

8.1.1.1 Request-URI

 

A pre-existing route

   set is an ordered set of URIs that identify a chain of servers, to

   which a UAC will send outgoing requests that are outside of a dialog.





 

When a provider

   wishes to configure a UA with an outbound proxy, it is RECOMMENDED

   that this be done by providing it with a pre-existing route set with

   a single URI, that of the outbound proxy.




12.1.2 UAC Behavior



If no Record-Route header field is present in

   the response, the route set MUST be set to the empty set.  This route

   set, even if empty, overrides any pre-existing route set for future




   requests in this dialog.  The remote target MUST be set to the URI

   from the Contact header field of the response.

 

On Thu, Feb 5, 2009 at 6:25 PM, Gang Liu <gangban.lau at gmail.com> wrote:

I didn't check pjsip source code to check how PRACK handle preloaded
route set.
But I think CANCEL goes wherever the INVITE went, using the same route.
But PRACK, UPDATE, INFO not this way.
Correct me if my understanding is wrong.

BTW, any Record-Route Header added into 200 OK respond?

regards,
Gang

 

On Thu, Feb 5, 2009 at 5:28 PM, Noga Yehudai <nogab at juniper.net> wrote:

Isn't that the point of local outbound proxy configuration - to always
pass through the proxy?

For example re-inv passes through the proxy with the same configuration.

 

Regards,

Noga

 

________________________________

From: pjsip-bounces@xxxxxxxxxxxxxxx
[mailto:pjsip-bounces at lists.pjsip.org] On Behalf Of Gang Liu
Sent: Thursday, February 05, 2009 10:58 AM
To: pjsip list
Subject: Re: PRACK and local outbound proxy

 

Enable record route at your proxy and try again.

180 ring from proxy don't include Record-Route Header.

regards,

Gang

On Thu, Feb 5, 2009 at 3:33 PM, Noga Yehudai <nogab at juniper.net> wrote:

Hi,

I found a problem when using Pjsua with -use-100rel and -outbound.

When using outbound proxy with PRACK, the PRACK will be sent directly to
the user and bypass the proxy.

Do you have any idea how to overcome this issue? Is it a known bug?

I attached the capture of the call you can use Wireshark to view it.

 

Thanks,

Noga


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