7 Mar
2016
7 Mar
'16
10:43 p.m.
The problem was in invalid nonce value as you can see from the debug message
0(3411) DEBUG: auth [api.c:136]: auth_check_hdr_md5(): auth:pre_auth:
Invalid nonce value received (ret 2)
I was debugging for a while and I was also analyzing pcap dump when I
realized that kamailioB was forwarding and both replying for the REGISTER
message eg. UA answered first for 401 Unauthorized from kamailioB with it's
nonce which was of course on both kamailio's invalid (kamailioB does not
have UA registered and kamailioA was expecting different nonce). This was
happening over and over and it was unable to sync the nonce's so I was
getting 401 Unauthorized over and over.
After that i just simply add exit() after the forward(), kamailioB stopped
responsing for the REGISTER and everything started to work.
I hope that this response will help in the future someone who forget to
exit after forwarding the request :-)
Thanks anyway
On Mon, Mar 7, 2016 at 7:50 AM, Daniel-Constantin Mierla <miconda(a)gmail.com>
wrote:
Hello,
run kamailio with debug=3 in kamailio.cfg, you should see more details
about what happens during authorization time.
Cheers,
Daniel
On 06/03/16 19:35, Cockhootec Yahrabee wrote:
Hi everyone,
I am trying to forward registration from one kamailio instance to another
one eg.
UA1 <---> kamailioB <------> kamailioA
I am trying to register on `kamailioA` with UA1. I have UA1 registered on
kamailioA. I am routing SIP messages by adding this to `request_route`
block:
if (uri != myself)
{
forward(otherKamailioIP, 5060);
}
Where I am using as `otherKamilioIP on kamailioA the kamailioB IP address
and vice versa.
I can clearly see in Wireshark, that the SIP messages are routed correctly
but I am getting 401 Unauthorized which is sent from kamailioA to kamailioB
and then from kamailioB to UA1.
I printed value of `auth_check` following this
<http://lists.sip-router.org/pipermail/sr-users/2014-November/085851.html>
http://lists.sip-router.org/pipermail/sr-users/2014-November/085851.html
and I am getting return code of `-1` which is according to the
documentation
http://kamailio.org/docs/modules/4.2.x/modules/auth_db.html#auth_db.f.www_a…
the GENERIC ERROR.
I don't know what to do next. Does anyone encounter this kind of error
before?
Thanks in advance
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--
Daniel-Constantin Mierlahttp://twitter.com/#!/miconda -
http://www.linkedin.com/in/miconda
Kamailio Advanced Training, Berlin, March 7-9, 2016 - http://www.asipto.com
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