[Spce-user] loose-routing

Daniel Grotti dgrotti at sipwise.com
Mon Nov 6 11:00:46 EST 2017 

Hi Stefano,
the INVITE the Gigaset is sending is quite weird, never seen this before.
RURI contains the Proxy domain, and conaints a ROUTE header with the 
number to call:

INVITE sip:centrale03.avanzati.it SIP/2.0
Via: SIP/2.0/UDP 
192.168.192.50:5070;rport;branch=z9hG4bKPjb90130da-94b5-46f2-9fa0-e13110f185f8 

From: 
<sip:0119084086 at c.voceblu.it>;tag=d8629edc-773b-4100-97b6-27d2dcc4e417
To: <sip:3482209875 at c.voceblu.it>
Contact: <sip:0119084086 at 192.168.192.50:5070>
Call-ID: 4ae7566c-c8ab-4b29-9950-d6829953f085
CSeq: 20617 INVITE
Allow: OPTIONS, SUBSCRIBE, NOTIFY, PUBLISH, INVITE, ACK, BYE, CANCEL, 
UPDATE, PRACK, REGISTER, REFER, MESSAGE
Supported: 100rel, timer, replaces, norefersub
Session-Expires: 1800
Min-SE: 90
P-Asserted-Identity: <sip:112 at galilei.local>
P-Preferred-Identity: <sip:112 at galilei.local>
Route: <sip:3482209875 at c.voceblu.it>
Max-Forwards: 70
User-Agent: Gigaset T440/T640
Content-Type: application/sdp
Content-Length:   239


Also, what is strange is that the INVITE from LB to PROXY looks lile:


INVITE sip:3482209875 at c.voceblu.it SIP/2.0
Record-Route: 
<sip:127.0.0.1;r2=on;lr=on;ftag=d8629edc-773b-4100-97b6-27d2dcc4e417;nat=yes;ngcplb=yes;socket=udp:94.125.235.56:5060> 

Record-Route: 
<sip:94.125.235.56;r2=on;lr=on;ftag=d8629edc-773b-4100-97b6-27d2dcc4e417;nat=yes;ngcplb=yes;socket=udp:94.125.235.56:5060> 

Via: SIP/2.0/UDP 
127.0.0.1;branch=z9hG4bK574d.ba877c02a02cf37c79ee52087c29a8d0.0
Via: SIP/2.0/UDP 
192.168.192.50:5070;received=178.255.188.147;rport=42652;branch=z9hG4bKPjb90130da-94b5-46f2-9fa0-e13110f185f8 

From: 
<sip:0119084086 at c.voceblu.it>;tag=d8629edc-773b-4100-97b6-27d2dcc4e417
To: <sip:3482209875 at c.voceblu.it>
Contact: <sip:0119084086 at 192.168.192.50:5070;alias=178.255.188.147~42652~1>
Call-ID: 4ae7566c-c8ab-4b29-9950-d6829953f085
CSeq: 20617 INVITE
Allow: OPTIONS, SUBSCRIBE, NOTIFY, PUBLISH, INVITE, ACK, BYE, CANCEL, 
UPDATE, PRACK, REGISTER, MESSAGE
Supported: 100rel, timer, replaces, norefersub
Session-Expires: 1800
Min-SE: 90
P-Asserted-Identity: <sip:112 at galilei.local>
P-Preferred-Identity: <sip:112 at galilei.local>
Max-Forwards: 69
User-Agent: Gigaset T440/T640
Content-Type: application/sdp
Content-Length:   269
P-NGCP-Src-Ip: 178.255.188.147
P-NGCP-Src-Port: 42652
P-NGCP-Src-Proto: udp
P-NGCP-Src-Af: 4
P-Sock-Info: udp:94.125.235.56:5060
P-NGCP-Src-Nat: 1
Route: <sip:centrale03.avanzati.it>


And this is also weird, cause it contains a ROUTE header, that should 
not be there.

Which version are you using ?
Do you have kamailo customtt in place ?


I would recommend to check your UA configuration, cause the first invite 
with that RURI and the Route header looks very strange, that should not 
the way to initiate a SIP session. INVITE's R-URI should contains 
sip:<number_called>@<sip_domain>, and usually no route header, or if 
any, they should contain the IP/domain of your NGCP.



-- 
Daniel Grotti
Head of Customer Support
Sipwise GmbH, Campus 21/Europaring F15
AT-2345 Brunn am Gebirge

Office: +43(0)130120332
Email: dgrotti at sipwise.com
Website: https://www.sipwise.com

On 11/06/2017 12:06 PM, Daniel Grotti wrote:
> Or better to send me the entire pcap (you can use my email if you 
> don't want to share data).
>
> -- 
> Daniel Grotti
> Head of Customer Support
> Sipwise GmbH, Campus 21/Europaring F15
> AT-2345 Brunn am Gebirge
>
> Office: +43(0)130120332
> Email:dgrotti at sipwise.com
> Website:https://www.sipwise.com
> On 11/06/2017 12:05 PM, Daniel Grotti wrote:
>> Please show me the INIVTE from 127.0.0.1:5060 (lb) to 127.0.0.1:5062 
>> (proxy).
>> Thanks
>>
>>
>> -- 
>> Daniel Grotti
>> Head of Customer Support
>> Sipwise GmbH, Campus 21/Europaring F15
>> AT-2345 Brunn am Gebirge
>>
>> Office: +43(0)130120332
>> Email:dgrotti at sipwise.com
>> Website:https://www.sipwise.com
>> On 11/06/2017 11:56 AM, stefanormc wrote:
>>> Great tool!
>>>
>>> *         Call flow for 4ae7566c-c8ab-4b29-9950-d6829953f085 (Color 
>>> by Request/Response)*
>>>
>>> │*INVITE**sip:centrale03.avanzati.it 
>>> <http://centrale03.avanzati.it>*SIP/2.0
>>>
>>> 178.255.188.147:42652 
>>> <http://178.255.188.147:42652>*94.125.235.56:5060 
>>> <http://94.125.235.56:5060>**127.0.0.1:5060 
>>> <http://127.0.0.1:5060>**127.0.0.1:5062 <http://127.0.0.1:5062>* 
>>> │Via:SIP/2.0/UDP 
>>> 192.168.192.50:5070;rport;branch=z9hG4bKPjb90130da-94b5-46f2-9fa0-e13
>>>
>>> ──────────┬───────────────────┬───────────────────┬───────────────────┬─────────│0f185f8
>>>
>>> │ *  INVITE (SDP) *││││From:<sip:0119084086 at c.voceblu.it 
>>> <mailto:sip%3A0119084086 at c.voceblu.it>>;tag=d8629edc-773b-4100-97b6-27d2dcc4e417
>>>
>>> *11:44:32.102554*   │ 
>>> *──────────────────────────>*││││To:<sip:3482209875 at c.voceblu.it 
>>> <mailto:sip%3A3482209875 at c.voceblu.it>>
>>>
>>> +0.000462  │││ INVITE (SDP) 
>>> ││Contact:<sip:0119084086 at 192.168.192.50:5070 
>>> <http://sip:0119084086@192.168.192.50:5070>>
>>>
>>> 11:44:32.103016   │││ 
>>> ──────────────────────────>││Call-ID:*4ae7566c-c8ab-4b29-9950-d6829953f085*
>>>
>>> +0.000214  │││       100 Trying ││CSeq:20617 INVITE
>>>
>>> 11:44:32.103230   │││ <──────────────────────────││Allow:OPTIONS, 
>>> SUBSCRIBE, NOTIFY, PUBLISH, INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, R
>>>
>>> +0.000176  │││ 403 Initial Loose-Routing ││ISTER, REFER, MESSAGE
>>>
>>> 11:44:32.103406   │││ <──────────────────────────││Supported:100rel, 
>>> timer, replaces, norefersub
>>>
>>> +0.000194  │       100 Trying ││││Session-Expires:1800
>>>
>>> 11:44:32.103600   │ <──────────────────────────││││Min-SE:90
>>>
>>> +0.000060  │ 403 Initial Loose-Routing 
>>> ││││P-Asserted-Identity:<sip:112 at galilei.local>
>>>
>>> 11:44:32.103660   │ 
>>> <──────────────────────────││││P-Preferred-Identity:<sip:112 at galilei.local>
>>>
>>> +0.010267  │           ACK ││││Route:<sip:3482209875 at c.voceblu.it 
>>> <mailto:sip%3A3482209875 at c.voceblu.it>>
>>>
>>> 11:44:32.113927   │ ──────────────────────────>││││Max-Forwards:70
>>>
>>> +0.000254  │││           ACK ││User-Agent:Gigaset T440/T640
>>>
>>> 11:44:32.114181   │││ 
>>> ──────────────────────────>││Content-Type:application/sdp
>>>
>>> │││││Content-Length:  239
>>>
>>> │││││
>>>
>>> │││││v=0
>>>
>>> │││││o=- 370697073 370697073 IN IP4 192.168.192.50
>>>
>>> │││││s=Asterisk
>>>
>>> │││││c=IN IP4 192.168.192.50
>>>
>>> │││││t=0 0
>>>
>>> │││││m=audio 12360 RTP/AVP 0 101
>>>
>>> │││││a=rtpmap:0 PCMU/8000
>>>
>>> │││││a=rtpmap:101 telephone-event/8000
>>>
>>> │││││a=fmtp:101 0-16
>>>
>>> │││││a=ptime:20
>>>
>>> │││││a=maxptime:150
>>>
>>> │││││a=sendrecv
>>>
>>> │││││
>>>
>>> │││││
>>>
>>> │││││
>>>
>>>
>>> can it be the p-asserted-identity the problem? I see is the PBX 
>>> endpoint instead of the sipwise account
>>>
>>>
>>>
>>>
>>> Il giorno 6 novembre 2017 @ 11:34:13, Daniel Grotti 
>>> (dgrotti at sipwise.com <mailto:dgrotti at sipwise.com>) ha scritto:
>>>
>>>> mmm...so the problem could be in the $du variable.
>>>> Since loose_route() return TRUE, it means that the INVITE contains 
>>>> a Route header.
>>>>
>>>> Can you take a trace of such call (with sngrep for example) and 
>>>> paste here the INVITE you receive from this UA ?
>>>>
>>>>
>>>> --
>>>> Daniel Grotti
>>>> Head of Customer Support
>>>> Sipwise GmbH, Campus 21/Europaring F15
>>>> AT-2345 Brunn am Gebirge
>>>>
>>>> Office: +43(0)130120332
>>>> Email:dgrotti at sipwise.com
>>>> Website:https://www.sipwise.com
>>>> On 11/06/2017 11:24 AM, stefanormc wrote:
>>>>>
>>>>> MariaDB [ngcp]> select * from kamailio.domain;
>>>>>
>>>>> +----+----------------------------+---------------------+------+
>>>>>
>>>>> | id | domain             | last_modified       | did  |
>>>>>
>>>>> +----+----------------------------+---------------------+------+
>>>>>
>>>>> |  1 | voip.sipwise.local         | 1900-01-01 00:00:01 | NULL |
>>>>>
>>>>> |  2 | sipd.bandablu.com <http://sipd.bandablu.com>         | 
>>>>> 1900-01-01 00:00:01 | NULL |
>>>>>
>>>>> |  3 | d.voceblu.it <http://d.voceblu.it>             | 1900-01-01 
>>>>> 00:00:01 | NULL |
>>>>>
>>>>> |  5 | c.voceblu.it <http://c.voceblu.it>             | 1900-01-01 
>>>>> 00:00:01 | NULL |
>>>>>
>>>>> |  8 | netgen.voceblu.it <http://netgen.voceblu.it>         | 
>>>>> 1900-01-01 00:00:01 | NULL |
>>>>>
>>>>> | 11 | res.voceblu.it <http://res.voceblu.it>             | 
>>>>> 1900-01-01 00:00:01 | NULL |
>>>>>
>>>>> | 12 | via-bolletta.telefonica.it 
>>>>> <http://via-bolletta.telefonica.it> | 1900-01-01 00:00:01 | NULL |
>>>>>
>>>>> | 13 | centrale03.avanzati.it <http://centrale03.avanzati.it>     
>>>>> | 1900-01-01 00:00:01 | NULL |
>>>>>
>>>>> +----+----------------------------+---------------------+------+
>>>>>
>>>>> *8 rows in set (0.02 sec)*
>>>>>
>>>>> *
>>>>> *
>>>>> *
>>>>> *
>>>>> *
>>>>> *
>>>>>
>>>>> centrale03:~# ngcp-kamctl proxy fifo domain_dump
>>>>>
>>>>> domain:: sipd.bandablu.com <http://sipd.bandablu.com>
>>>>>
>>>>> did:: sipd.bandablu.com <http://sipd.bandablu.com>
>>>>>
>>>>> domain:: voip.sipwise.local
>>>>>
>>>>> did:: voip.sipwise.local
>>>>>
>>>>> domain:: via-bolletta.telefonica.it 
>>>>> <http://via-bolletta.telefonica.it>
>>>>>
>>>>> did:: via-bolletta.telefonica.it <http://via-bolletta.telefonica.it>
>>>>>
>>>>> domain:: centrale03.avanzati.it <http://centrale03.avanzati.it>
>>>>>
>>>>> did:: centrale03.avanzati.it <http://centrale03.avanzati.it>
>>>>>
>>>>> domain:: res.voceblu.it <http://res.voceblu.it>
>>>>>
>>>>> did:: res.voceblu.it <http://res.voceblu.it>
>>>>>
>>>>> domain:: d.voceblu.it <http://d.voceblu.it>
>>>>>
>>>>> did:: d.voceblu.it <http://d.voceblu.it>
>>>>>
>>>>> domain:: c.voceblu.it <http://c.voceblu.it>
>>>>>
>>>>> did:: c.voceblu.it <http://c.voceblu.it>
>>>>>
>>>>> domain:: netgen.voceblu.it <http://netgen.voceblu.it>
>>>>>
>>>>> did:: netgen.voceblu.it <http://netgen.voceblu.it>
>>>>>
>>>>>
>>>>>
>>>>> Il giorno 6 novembre 2017 @ 11:18:40, Daniel Grotti 
>>>>> (dgrotti at sipwise.com <mailto:dgrotti at sipwise.com>) ha scritto:
>>>>>
>>>>>> select * from kamailio.domain;
>>>>
>>
>>
>>
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>
>
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