Hi Ping,
You should not manually change the cseq in the messages as you will
break the whole dialog (the sequential requests).
The 2.1 version does cseq increasing (with dialog consistency) when
performing uac_auth().
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 05.06.2015 09:39, Ping Han wrote:
Hi Bogdan,
Thanks for your reply.
I am trying to manipulate the CSeq header.
I have attached a packet trace.
In the example 10.216.235.38 sends a SIP Invite to 10.216.235.37 via
Opensips. Then 10.216.235.37 challenges authentication. In the second
SIP Invite that contains the authentication info (frame number 6), I
have to increment the CSeq header otherwise 10.216.235.37 does not
like it. The new CSeq is now set to 2.
If 10.216.235.37 is not able to accept the call, it returns something
other than "200 OK" (606 in this example). Now it is the problem.
Opensips sends back an ACK (frame number 12) with CSeq set to 1 (not
2). 10.216.235.37 is expecting an ACK with a CSeq set to 2. The
consequence is that 10.216.235.37 keeps sending 606 until times out.
The ACK is internally generated by Opensips and as you said we can not
manipulate it. I am wondering if there is any way to solve this problem.
PS: 10.216.235.97 is the internal IP of Opensips server and
10.216.235.74 is the external IP.
Thanks,
Ping
On Thu, Jun 4, 2015 at 12:55 AM, Bogdan-Andrei Iancu
<bog...@opensips.org <mailto:bog...@opensips.org>> wrote:
Hi Ping,
There is no access to internally generated ACK and CANCEL requests.
What are you trying to do ?
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 03.06.2015 02:53, Ping Han wrote:
Hi,
With Opensips is there a way to manipulate the SIP headers of a
messages that are generated locally by Opensips. See the example
below.
--------------------------------------------
ACK sip:0370103204@192.168.100.37:5060
<http://sip:0370103204@192.168.100.37:5060> SIP/2.0
Via: SIP/2.0/UDP 192.168.100.74:5060;branch=z9hG4bK5094.3ee05403.1
From:<sip:0370103...@xxxvoip.com
<mailto:sip%3a0370103...@xxxvoip.com>>;tag=1740643510
Call-ID: 641613075@192.168.100.38 <mailto:641613075@192.168.100.38>
To:<sip:0370103204@192.168.100.37:5060
<http://sip:0370103204@192.168.100.37:5060>>;tag=1994410995-1432625097305;
CSeq: 1 ACK
Max-Forwards: 70
User-Agent: OpenSIPS (2.1.0 (x86_64/linux))
Content-Length: 0
--------------------------------------------
Thanks,
Ping Han
_______________________________________________
Users mailing list
Users@lists.opensips.org <mailto:Users@lists.opensips.org>
http://lists.opensips.org/cgi-bin/mailman/listinfo/users
_______________________________________________
Users mailing list
Users@lists.opensips.org
http://lists.opensips.org/cgi-bin/mailman/listinfo/users
