[SR-Users] Wrong Call-ID and tags in response to OPTIONS

[Jean-Marie Baran]

My mistake, you're right, I must have picked the wrong frame. I had this 
request/reply sample and was wondering what was going... Sorry to have 
bothered you, and thank you for just pointing that out.

By the way, is it normal that I had to change the code to have Kamailio 
accept OPTIONS messages, or did I miss a config somewhere ?

On 10/08/2015 10:56, Daniel-Constantin Mierla wrote:
> Hello,
>
> are you sure you got the sip reply for the request?
>
> Apart of cseq number, all the other tokens are different, including 
> the via branch. Kamailio doesn't generate any callid or from-tag when 
> using sl_send_reply() or options_reply(), it reuses the ones from request.
>
> if you still think it is the case of an issues, try:
>
> - add xlog() before sending the reply printing the call-id, from-tag 
> via header and cseq header
> - grab the pcap capture of such case
>
> Send the syslog messages and the pcap file here on mailing list so we 
> can analyze.
>
> Cheers,
> Daniel
>
>
>
> On 10/08/15 10:41, Jean-Marie Baran wrote:
>> Hi,
>>
>> I am trying to get Kamailio working with a third party SIP provider. 
>> This provider pings Kamailio with OPTIONS messages, but Kamailio does 
>> not answer correctly: the Call-ID and the tags change where they 
>> should not. Here is an example:
>>
>> Third party SIP server:
>>
>> OPTIONS sip:false.sip.provider:5060 SIP/2.0
>> Via: SIP/2.0/UDP 197.17.144.4:5060;branch=z9hG4bK8e45ac1463a
>> From: <sip:197.17.144.4>;tag=1669836943
>> To: <sip:false.sip.provider>
>> Date: Fri, 07 Aug 2015 12:34:37 GMT
>> Call-ID: a012e080-5c41a5ce-8e5-38512c6 at 197.17.144.4
>> User-Agent: Cisco-CUCM10.5
>> CSeq: 101 OPTIONS
>> Contact: <sip:197.17.144.4:5060>
>> Max-Forwards: 0
>> Content-Length: 0
>>
>> Kamailio's answer:
>>
>> SIP/2.0 200 OK
>> Via: SIP/2.0/UDP 
>> 197.17.144.4:5060;branch=z9hG4bK93e5f072f5f;received=174.37.217.1
>> From: <sip:197.17.144.4>;tag=298911055
>> To: <sip:false.sip.provider>;tag=b27e1a1d33761e85846fc98f5f3a7e58.8c24
>> Call-ID: 2defcb00-5c41aa17-93f-38512c6 at 197.17.144.4
>> CSeq: 101 OPTIONS
>> Server: kamailio (4.3.1 (x86_64/linux))
>> Content-Length: 0
>>
>> You can see that the Call-ID change from 
>> "a012e080-5c41a5ce-8e5-38512c6" to "2defcb00-5c41aa17-93f-38512c6". 
>> Likewise, the From tag change ("1669836943" to "298911055"). What 
>> could be the reason for this ?
>> Moreover I think Kamailio should add the field Allow (with 
>> INVITE,ACK,BYE,CANCEL,INFO,OPTIONS,REFER,SUBSCRIBE,NOTIFY), but it 
>> does not.
>>
>> I should mention that I had to modify /kamailio.cfg/ to have Kamailio 
>> answer to OPTIONS messages (I added *the code in bold*):
>>
>> if (*!is_method("OPTIONS") && *!mf_process_maxfwd_header("10")) {
>>         sl_send_reply("483","Too Many Hops");
>>         exit;
>> }
>>
>> if(is_method("OPTIONS") && uri==myself && $rU==$null) {
>> *#* sl_send_reply("200","Keepalive");
>> *options_reply();*
>>         exit;
>> }
>>
>> Maybe this hack replaces an expected behavior that I failed to 
>> see/configure ?
>>
>> Thanks,
>> Jean-Marie.
>>
>>
>> _______________________________________________
>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>> sr-users at lists.sip-router.org
>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
> -- 
> Daniel-Constantin Mierla
> http://twitter.com/#!/miconda  -http://www.linkedin.com/in/miconda
> Book: SIP Routing With Kamailio -http://www.asipto.com
>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> sr-users at lists.sip-router.org
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

-- 
*Jean-Marie Baran*
AMA developer

Skype: jeanmarie.baran
Email: jean-marie.baran at ama.bzh <mailto:jean-marie.baran at ama.bzh>
www.advancedmedicalapplications.com 
<http://www.advancedmedicalapplications.com>
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