Dear All,
I wonder if Kamailio supports RFC5626 as edge proxy or outbound proxy.
That is,
Edge Proxy adds a Path header with a flow token and includes the "ob" parameter when Processing Register Requests.
Eg: Path: sip:VskztcQ/S8p4WPbOnHbuyh5iJvJIW3ib@ep1.example.com;lr;ob
If does, how can I config it in kamailio.cfg. At present, Kamailio can only forward register msg to sip server and reply 200 OK to SIP UA with "require: outbound" when register accepted. No "Path" and "ob" added in the msg forwarded to SIP server.
You answer is appreciated!!
Sincerely,
Derrick
The nat_traversal module has a keep-alive mechanism that can be used to keep connections active on proxy servers. Also, using the textops module, new headers can be added an existing headers can be modified.
I haven't read the whole rfc to give you definite answer, but it may be possible to emulate an edge server with a well crafted config.
Regards, Ovidiu Sas
On Wed, Mar 9, 2011 at 11:38 AM, Derrick Ding dding@aastra.com wrote:
Dear All,
I wonder if Kamailio supports RFC5626 as edge proxy or outbound proxy.
That is,
Edge Proxy adds a Path header with a flow token
and includes the "ob" parameter when Processing Register Requests.
Eg:
Path: sip:VskztcQ/S8p4WPbOnHbuyh5iJvJIW3ib@ep1.example.com;lr;ob
If does, how can I config it in kamailio.cfg. At present, Kamailio can only forward register msg to sip server and reply 200 OK to SIP UA with “require: outbound” when register accepted. No “Path” and “ob” added in the msg forwarded to SIP server.
You answer is appreciated!!
Sincerely,
Derrick
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
Hi Derrick,
Edge Proxy adds a Path header with a flow token and includes the "ob" parameter when Processing Register Requests.
Eg: Path: sip:VskztcQ/S8p4WPbOnHbuyh5iJvJIW3ib@ep1.example.com;lr;ob
http://kamailio.org/docs/modules/stable/modules_k/path.html and http://kamailio.org/docs/modules/stable/modules_k/registrar.html#id2954403 (and the two following params) might be sufficient if you're just interested in traversing NAT via kamailio acting as a load-balancer. It's an implementation of RFC3327, see http://openser.org/pipermail/devel/2006-March/002142.html for a real-world example.
It won't handle the "ob" header and various keep-alive mechanisms proposed in RFC5626 though, but probably you can solve this with the nat-ping features of nathelper or nat_traversal modules anyways?
Andreas
Hi Andreas and Ovidiu
Thanks for your reply, I will learn it. I am the beginner of Kamalio from this week. Now I can make kamalio work as an proxy between UA and Asterisk Sip server. I have some basic problem for outgoing call. I will create another topic for that. And hope you will help. :-)
Thanks a again!!!!
Derrick
-----Original Message----- From: sr-users-bounces@lists.sip-router.org [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of Andreas Granig Sent: Wednesday, March 09, 2011 2:00 PM To: sr-users@lists.sip-router.org Subject: Re: [SR-Users] Does Kamailio support RFC5626 as Edge Proxy(or outbound proxy)
Hi Derrick,
Edge Proxy adds a Path header with a flow token and includes the "ob" parameter when Processing Register Requests.
Eg: Path: sip:VskztcQ/S8p4WPbOnHbuyh5iJvJIW3ib@ep1.example.com;lr;ob
http://kamailio.org/docs/modules/stable/modules_k/path.html and http://kamailio.org/docs/modules/stable/modules_k/registrar.html#id29544 03 (and the two following params) might be sufficient if you're just interested in traversing NAT via kamailio acting as a load-balancer. It's an implementation of RFC3327, see http://openser.org/pipermail/devel/2006-March/002142.html for a real-world example.
It won't handle the "ob" header and various keep-alive mechanisms proposed in RFC5626 though, but probably you can solve this with the nat-ping features of nathelper or nat_traversal modules anyways?
Andreas
-
Andreas Granig -
Derrick Ding -
Ovidiu Sas