[SR-Users] RR module - Fail detecting strict routing

[Daniel-Constantin Mierla]

Hello,

what is the request URI? It might be better to just paste here the full
ACK message.

Cheers,
Daniel

On 14/07/15 12:25, Antonio Reale wrote:
> Sorry,
> here's the Route HF present in the ACK received from U1:
>
> Route: <sip:192.168.0.245;lr>
> Route: <sip:0000000011 at 192.168.0.101;transport=udp;pgw-call=call-28d2e>
>
> Regards.
>
> Antonio
>
>
>
> Il 14/07/2015 12:09, Antonio Reale ha scritto:
>> Hi all,
>> I have the following  scenario:
>> U1 (caller) ---> P1 (192.168.0.245, kamailio 4.3, loose-router) ---->
>> P2 ----> (192.168.0.101, strict router) ----> .... ----> U2 (called)
>>
>> When U2 answers the call, at P1 arrives the 200 OK with:
>> Record-Route:
>> <sip:0000000011 at 192.168.0.101;transport=udp;pgw-call=call-28d2e>
>> Record-Route: <sip:192.168.0.245;lr=on>
>>
>> The problem is that the ACK from U1 is forwarded from kamailio to P2,
>> as if P2 is a loose router. P2 drops the ACK message.
>>
>> From kamailio logs I see:
>> Jul 14 10:07:44 P1 /usr/sbin/kamailio[15908]: DEBUG: rr [loose.c:88]:
>> is_preloaded(): is_preloaded: No
>> Jul 14 10:07:44 P1 /usr/sbin/kamailio[15908]: DEBUG: rr
>> [loose.c:783]: after_loose(): Topmost route URI:
>> 'sip:192.168.0.245;lr=on' is me
>> Jul 14 10:07:44 P1 /usr/sbin/kamailio[15908]: DEBUG: rr
>> [loose.c:869]: after_loose(): URI to be processed:
>> 'sip:0000000011 at 192.168.0.101;transport=udp;pgw-call=call-289ce'
>> Jul 14 10:07:44 P1 /usr/sbin/kamailio[15908]: DEBUG: rr
>> [loose.c:878]: after_loose(): Next URI is a loose router
>>
>> Why after_loose function considers the next URI a loose router? The
>> Route HF in the ACK with the URI of the next hop does not contain ;lr .
>> It seems that the function is_strict fails detecting the strict router.
>>
>> Thanks.
>>
>> Regards.
>>
>> Antonio
>
>
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-- 
Daniel-Constantin Mierla
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