[SR-Users] RTPProxy - lookup request failed

Daniel-Constantin Mierla miconda at gmail.com
Tue Jul 11 15:36:31 CEST 2017


Hello,

doing 'man rtpproxy' on debian jessie reveals:

"The proxy tracks idle time for each of existing sessions (i.e. the time
within which there were no packets relayed), and automatically cleans up
a sessions whose idle times exceed the value specified at compile time
(60 seconds by default)."

Which seems to explain exactly what happens in your case.

I knew there was an inactivity cleanup routine, but I expected to be
higher than 60sec. Interesting that it didn't hit me badly so far. I
haven't checked the source code to see if it still matches the docs,
though, but I see that master branch of rtpproxy still has this remark
in the manual:

  - https://github.com/sippy/rtpproxy/blob/master/rtpproxy.8#L335

An issue should be created for rtpproxy to at least increase this value,
or better make it an option for command line.

Cheers,
Daniel

On 11.07.17 15:21, Marian Piater wrote:
>
> Hi Daniel,
>
> we are using 1.2.1-2.1 version from Debian Jessie repository.
>
> rtpproxy                        1.2.1-2.1                         
> amd64        Relay for Real-time Transport Protocol (RTP) media streams
>
> Regards,
>
> Marian
>
>
> Dňa 11.7.2017 o 13:09 Daniel-Constantin Mierla napísal(a):
>>
>> Hello,
>>
>> what is the version for rtpproxy?
>>
>> Cheers,
>> Daniel
>>
>>
>> On 11.07.17 11:52, Marian Piater wrote:
>>>
>>> Hello,
>>>
>>> I have a problem with RTPProxy.
>>>
>>> Scenario:
>>>
>>> SS7 (PSTN) ---> ASTERISK BOX --> Kamailio --> UAC
>>>
>>> In case of incoming call from PSTN, when called party answer the
>>> call after 60 seconds of ringing, then the call is without audio and
>>> in this case I see in the log this message:
>>>
>>> Creating session
>>>
>>> Jul 11 11:24:32 b2b-voice-sipproxy-v3 rtpproxy[731]:
>>> INFO:handle_command: new session
>>> 766d0e006d8969d36c628e363ea7c3e1 at upc.cz, tag as7a7c86ae;1 requested,
>>> type strong
>>> Jul 11 11:24:32 b2b-voice-sipproxy-v3 rtpproxy[731]:
>>> INFO:handle_command: new session on a port 52902 created, tag
>>> as7a7c86ae;1
>>> Jul 11 11:24:32 b2b-voice-sipproxy-v3 rtpproxy[731]:
>>> INFO:handle_command: pre-filling caller's address with
>>> XXX.XXX.XXX.XXX:32740
>>>
>>> Answer after approx 60 seconds
>>>
>>> Jul 11 11:25:40 b2b-voice-sipproxy-v3 rtpproxy[731]:
>>> INFO:handle_command: lookup request failed: session
>>> 766d0e006d8969d36c628e363ea7c3e1 at upc.cz, tags
>>> as7a7c86ae;1/l0g9iusua2;1 not found
>>> Jul 11 11:25:40 b2b-voice-sipproxy-v3 rtpproxy[731]:
>>> INFO:handle_delete: forcefully deleting session 1 on ports 35196/36656
>>>
>>> Kamailio log (answer)
>>>
>>> Jul 11 11:25:40 b2b-voice-sipproxy-v3 kamailio[5268]: INFO:
>>> <script>: UID:766d0e006d8969d36c628e363ea7c3e1 at upc.cz --
>>> ONREPLY_ROUTE: rtpproxy_manage(co)
>>> Jul 11 11:25:40 b2b-voice-sipproxy-v3 kamailio[5268]: ERROR:
>>> rtpproxy [rtpproxy.c:2536]: force_rtp_proxy(): incorrect port 0 in
>>> reply from rtp proxy
>>>
>>> It looks like there is somewhere 60 seconds session timeout. But I
>>> don't know where. When the call is answered during first 60 seconds,
>>> then everything is OK and we have both audio.
>>>
>>> Kamailio reply route configuration:
>>>
>>> onreply_route[REPLYROUTE] {
>>> #
>>> #-- On-replay block routing --
>>> #
>>>         xlog("L_INFO","UID:$ci -- ONREPLY_ROUTE1: $rm $si avp
>>> $avp(s:131) $avp(s:132)");
>>>         if(has_body("application/sdp")) {
>>>                 xlog("L_INFO","UID:$ci -- ONREPLY_ROUTE:
>>> rtpproxy_manage(co)");
>>>                 rtpproxy_manage("co");
>>>         }
>>>
>>>         if ((isflagset(FLT_NATS) || isbflagset(FLB_NATB)) &&
>>> status=~"(183)|(2[0-9][0-9])"){
>>>                 xlog("L_INFO","UID:$ci -- ONREPLY_ROUTE1:
>>> force_rtp_proxy");
>>>                 append_hf("P-hint: onreply_route|force_rtp_proxy \r\n");
>>>         }
>>>
>>>         if (isbflagset(FLB_NATB)) {
>>>                 xlog("L_INFO","UID:$ci -- ONREPLY_ROUTE1:  P-hint:
>>> Onreply-route - fixcontact");
>>>                 append_hf("P-hint: Onreply-route - fixcontact \r\n");
>>>                 fix_nated_contact();
>>>         }
>>>         exit;
>>> }
>>>
>>> Some parameters settings.
>>>
>>> modparam("rtpproxy", "rtpproxy_sock", "udp:127.0.0.1:7722")
>>> modparam("rtpproxy", "extra_id_pv", "$avp(extra_id)")
>>> modparam("rtpproxy", "rtpproxy_disable_tout", 20)
>>> modparam("rtpproxy", "rtpproxy_tout", 2)
>>>
>>> modparam("tm", "disable_6xx_block", 1)
>>> modparam("tm", "fr_timer", 5000) ## 5 seconds.
>>> modparam("tm", "restart_fr_on_each_reply", 0)
>>> modparam("tm", "auto_inv_100_reason", "Trying")
>>>
>>> modparam("dialog", "dlg_flag", 4)
>>> modparam("dialog", "rr_param", "rtp")
>>> modparam("dialog", "default_timeout", 7230)
>>> modparam("dialog", "dlg_match_mode", 1)
>>> modparam("dialog", "db_mode", 1)
>>> modparam("dialog", "enable_stats", 1)
>>> modparam("dialog", "send_bye", 1)
>>> modparam("dialog", "lreq_callee_headers", "TH: dlh\r\n")
>>>
>>> modparam("rr", "enable_full_lr", 1)
>>> modparam("rr", "append_fromtag", 1)
>>> modparam("rr", "enable_double_rr", 1)
>>>
>>> RTPproxy is installed from Debian package:
>>>
>>>  /usr/bin/rtpproxy -s udp:127.0.0.1 7722 -u rtpproxy rtpproxy -p
>>> /var/run/rtpproxy/rtpproxy.pid -F -l XXX.XXX.XXX.XXX -d DBUG LOG_LOCAL0
>>>
>>> Any advice?
>>>
>>> Thanks
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Kamailio (SER) - Users Mailing List
>>> sr-users at lists.kamailio.org
>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>
>> -- 
>> Daniel-Constantin Mierla
>> www.twitter.com/miconda -- www.linkedin.com/in/miconda
>> Kamailio Advanced Training - www.asipto.com
>> Kamailio World Conference - www.kamailioworld.com
>

-- 
Daniel-Constantin Mierla
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training - www.asipto.com
Kamailio World Conference - www.kamailioworld.com

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