[SR-Users] CANCEL not matching INVITES !

[Daniel-Constantin Mierla]

Hello,

I will look over it soon - since you sent pcap I couldn't look at it 
directly from the email. ngrep outputs plain text which is easy to read 
from email, the reason I am asking mainly for ngrep traces since many 
times I am not around a computer where is convenient to open pcap file. 
On the other hand, if it is a transmission problem (at transport layer), 
pcap file is better.

Cheers,
Daniel

On 11/29/11 5:07 AM, Sammy Govind wrote:
> Hello again,
>
> Please see the attached wireshark trace, I tried for a sipgrep trace 
> but couldn't somehow. I hope this will get me some clue on what I'm 
> doing wrong.
>
> This is a setup with Kamailio in front of Asterisk Servers. Kamailio 
> is multihomed and MS are on private IPs, all the calls are routed to 
> MSs and then comeback for further dial-outs.
>
> Please see the Continuous CANCEL requests which aren't terminating the 
> call.
>
> Thanks,
> Sammy.
>
> On Mon, Nov 28, 2011 at 4:41 PM, Sammy Govind <govoiper at gmail.com 
> <mailto:govoiper at gmail.com>> wrote:
>
>     Thanks for your reply I will attach the wireshark traces as soon
>     as I get to my workstation.
>
>     BR,
>     Sammy.
>
>
>     On Mon, Nov 28, 2011 at 3:33 PM, Daniel-Constantin Mierla
>     <miconda at gmail.com <mailto:miconda at gmail.com>> wrote:
>
>         Hello,
>
>         send the ngrep trace of such call, from the initial INVITE,
>         you can use:
>
>         ngrep -d any -qt -W byline port 5060
>
>         The sip trace will help to see what is wrong with that CANCEL.
>
>         Cheers,
>         Daniel
>
>
>         On 11/28/11 7:19 AM, Sammy Govind wrote:
>>         Anyone please help.
>>
>>         On Sat, Nov 26, 2011 at 10:39 PM, Sammy Govind
>>         <govoiper at gmail.com <mailto:govoiper at gmail.com>> wrote:
>>
>>             Hello list,
>>
>>             I'm using Kamailio 3.1.5 in front of asterisk servers.
>>             Kamailio handles all the SIP registrations. Calls from
>>             SIP phones are forwarded to asterisks and then dialled
>>             out to Kamailio.
>>
>>             root at SBCserver:~# kamailio -V
>>             version: kamailio 3.1.5 (x86_64/linux) 76fff5
>>             flags: STATS: Off, USE_IPV6, USE_TCP, USE_TLS, TLS_HOOKS,
>>             USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK,
>>             SHM_MEM, SHM_MMAP, PKG_MALLOC, DBG_QM_MALLOC, USE_FUTEX,
>>             FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER,
>>             USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
>>             ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144,
>>             MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535,
>>             PKG_SIZE 4MB
>>             poll method support: poll, epoll_lt, epoll_et, sigio_rt,
>>             select.
>>             id: 76fff5
>>             compiled on 08:21:33 Oct 27 2011 with gcc 4.6.1
>>             root at SBCserver:~#
>>
>>
>>             Problem:
>>             When call is initiated from a softphone and is in ringing
>>             phase, CANCEL just don't work. I've done some initial
>>             debugging and the following piece of code in main route
>>             is failing.
>>
>>             # CANCEL processing
>>             if (is_method("CANCEL"))
>>             {
>>                  xlog("L_NOTICE","$rm from $fu (IP:$si:$sp)
>>             ---CAPTURED IN MAIN---\n");
>>                  if (t_check_trans()){
>>                     t_relay();
>>                     xlog("L_NOTICE","$rm from $fu (IP:$si:$sp)
>>             ---CHECK TRANS TRUE---\n");
>>                  }
>>                  xlog("L_NOTICE","$rm from $fu (IP:$si:$sp) ---CHECK
>>             TRANS FALSE---\n");
>>                  exit;
>>             }
>>
>>             Also the CANCEL fails the has_totag() condition !
>>
>>             The same Call CANCEL scenario works fine for any client
>>             on Public IP !
>>
>>             Hope to get some pointers for the solution.
>>
>>             Regards,
>>             Sammy.
>>
>>
>>
>>
>>         _______________________________________________
>>         SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>         sr-users at lists.sip-router.org  <mailto:sr-users at lists.sip-router.org>
>>         http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
>         -- 
>         Daniel-Constantin Mierla --http://www.asipto.com
>         Kamailio Advanced Training, Dec 5-8, Berlin:http://asipto.com/u/kat
>         http://linkedin.com/in/miconda  -- http://twitter.com/miconda
>
>
>
>
>
> _______________________________________________
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-- 
Daniel-Constantin Mierla -- http://www.asipto.com
Kamailio Advanced Training, Dec 5-8, Berlin: http://asipto.com/u/kat
http://linkedin.com/in/miconda -- http://twitter.com/miconda

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