[sr-dev] [SR-Users] Outbound and Registrar. No binding update

[Iñaki Baz Castillo]

Hi, full agree with this bug report. Adding the devel maillist. More
comments at the end of the mail:


2012/7/26 José Luis Millán <jmillan at aliax.net>:
> Hi,
>
> I'm using Kamilio 3.3.0  as registrar server. I`m using an outbound proxy so
> 'use_path' parameter or 'registrar' module is enabled.
>
> According to RFC 5626, a re-registration from a specific combination of AoR,
> instance_id and reg_id must update the binding.
>
> ""
>    If the registrar receives a re-registration for a specific
>    combination of AOR, and instance-id and reg-id values, the registrar
>    MUST update any information that uniquely identifies the network flow
>    over which the request arrived if that information has changed, and
>    SHOULD update the time the binding was last updated.
> ""
>
> In my installation this is not fullfilled as shown:
>
> ""
>         AOR:: jmillan
>                 Contact:: sip:jmillan at MY_IP;transport=ws;ov-ob=a570655c14 Q=
>                         Expires:: 181
>                         Callid:: 1hgq3khalq2rzfr
>                         Cseq:: 108
>                         User-agent:: JsSIP 0.1.0
>                         Path::
> <sip:OUTBOUND_IP:9090;transport=tcp;lr;ovid=de0c0b9f>,<sip:a570655c14 at OUTBOUND_IP:10080;transport=ws;lr;ovid=de0c0b9f;ob>
>                         State:: CS_SYNC
>                         Flags:: 0
>                         Cflag:: 0
>                         Socket:: tcp:KAM_IP:5060
>                         Methods:: 783
>                         Ruid:: uloc-50119d99-328e-1
>                         Instance::
> <urn:uuid:38dce009-ae1f-4fd1-91dc-99ed9affddc1>
>                         Reg-Id:: 1
>                 Contact:: sip:jmillan at MY_IP;transport=ws;ov-ob=1dd97b4d51 Q=
>                         Expires:: 193
>                         Callid:: 1hgq3khalq2rzfr
>                         Cseq:: 110
>                         User-agent:: JsSIP 0.1.0
>                         Path::
> <sip:OUTBOUND_IP:9090;transport=tcp;lr;ovid=de0c0b9f>,<sip:1dd97b4d51 at OUTBOUND_IP:10080;transport=ws;lr;ovid=de0c0b9f;ob>
>                         State:: CS_SYNC
>                         Flags:: 0
>                         Cflag:: 0
>                         Socket:: tcp:KAM_IP:5060
>                         Methods:: 783
>                         Ruid:: uloc-50119d99-3290-2
>                         Instance::
> <urn:uuid:38dce009-ae1f-4fd1-91dc-99ed9affddc1>
>                         Reg-Id:: 1
> ""
>
> The scenario is such that when the client looses the connection with the
> Outbound Server, it reconnects and re-registers to Kamailio in order to
> replace registration and be able to receive in-dialog messages.

Receiving in-dialog requests should work since GRUU is also being
used. The problem is that the new REGISTER (after UA disconnection)
does not update the previous one (as this thread reports) so Kamailio
still chooses the previous binding which does not work anymore.


Regards.




-- 
Iñaki Baz Castillo
<ibc at aliax.net>