[OpenSIPS-Users] [Re: Routing problem with Record-Route]

[Binan AL Halabi]

Hi,
loose route parameter lr , which can be present in sip or sips Record-Route and Route URIs to indicate that the proxy server identified by the URI supports loose routing.

 
RFC 3261 explains the "lr" parameter as just ";lr", not lr=on. This brokes some UAs which add =on to the "lr".  opensips adds=on  to be compatible with these UAs


//Binan.


--- On Fri, 8/24/12, mickael at winlux.fr <mickael at winlux.fr> wrote:

From: mickael at winlux.fr <mickael at winlux.fr>
Subject: Re: [OpenSIPS-Users] [Re:  Routing problem with Record-Route]
To: "OpenSIPS users mailling list" <users at lists.opensips.org>
Date: Friday, August 24, 2012, 5:08 AM

Exactly Opensips add lr=on and callee device transform it into lr;r2=on.

my other devices (asterisk, avaya, etc ...) do not transform lr...

My Opensips version is version: opensips 1.6.4-2-tls (i386/freebsd)

what is the difference between lr=on and lr;r2=on ?

> So OpenSIPS adds "lr=on" but the callee device transform it into a
> "lr".....
>
> What version of opensips are you
 using?
>
> Regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developer
> http://www.opensips-solutions.com
>
>
> On 08/24/2012 02:27 PM, mickael at winlux.fr wrote:
>> Hi Bogdan-Andrei,
>> Thank you for your response.
>>
>> Yes I confirm in INVITE I have 2 RR with lr=on:
>>
>> <sip:8.8.8.8;r2=on;lr=on;ftag=c97942d9-13c4-50237efd-8d49d7d0-5fb68102;xyz=3a2.86da31c4>
>> <sip:8.8.8.9;r2=on;lr=on;ftag=c97942d9-13c4-50237efd-8d49d7d0-5fb68102;xyz=3a2.86da31c4>
>>
>> and in 200OK I have 1 RR with just lr:
>>
>>
 <sip:8.8.8.8;lr;r2=on;ftag=c97942d9-13c4-50237efd-8d49d7d0-5fb68102;xyz=3a2.86da31c4>,<sip:8.8.8.9;lr;r2=on;ftag=c97942d9-13c4-50237efd-8d49d7d0-5fb68102;xyz=3a2.86da31c4>
>>
>> and in ACK I have 2 Route with lr:
>>
>> <sip:8.8.8.8;lr;r2=on;ftag=c97942d9-13c4-50237efd-8d49d7d0-5fb68102;xyz=3a2.86da31c4>
>> <sip:8.8.8.9;lr;r2=on;ftag=c97942d9-13c4-50237efd-8d49d7d0-5fb68102;xyz=3a2.86da31c4>
>>
>>
>>> Hi Mickael,
>>>
>>> Can you confirm (for the failed call) that OpenSIPS added in INVITE RR
>>> hdrs with "lr=on" param and in the 200 OK or ACK you get only "lr"
>>> param
>>> (with no value) ?
>>>
>>> Regards,
>>>
>>> Bogdan-Andrei Iancu
>>> OpenSIPS Founder and Developer
>>> http://www.opensips-solutions.com
>>>
>>>
>>> On 08/24/2012 11:09 AM, mickael at winlux.fr wrote:
>>>> Hi list,
>>>> I have a routing problem with my Opensips
>>>> version: opensips 1.6.4-2-tls (i386/freebsd)
>>>>
>>>> Indeed Opensips is unable to route ACK packet to final destination
>>>> (look
>>>> attachement .txt).
>>>>
>>>> The only difference with a normal call (Call OK), it's Record-Route
>>>> formating. Customer's device send 200OK with differents fields:
>>>>
>>>>
>>>> Test device with the problem (call NOT OK):
>>>> Ex: problem call = 1 field for 2 routes
>>>> Extract from the customer
 200OK
>>>>
>>>> Record-Route:
>>>> <sip:8.8.8.8;lr;r2=on;ftag=c97942d9-13c4-50237efd-8d49d7d0-5fb68102;xyz=3a2.86da31c4>,<sip:9.9.9.9;lr;r2=on;ftag=c97942d9-13c4-50237efd-8d49d7d0-5fb68102;xyz=3a2.86da31c4>
>>>>
>>>>
>>>> Test with another device (call OK)
>>>> Ex: normal call = 2 fields for 2 routes
>>>> Extract from the Customer 200OK
>>>>
>>>> Record-Route:
>>>> <sip:8.8.8.8;r2=on;lr=on;ftag=c97942d9-13c4-50237efd-8d49d7d0-5fb68102;xyz=3a2.86da31c4>
>>>> Record-Route:
>>>> <sip:9.9.9.9;r2=on;lr=on;ftag=c97942d9-13c4-50237efd-8d49d7d0-5fb68102;xyz=3a2.86da31c4>
>>>>
>>>> My question is: This opensips version is able to work with 1
>>>> record-route
>>>> field containing 2
 informations ?
>>>>
>>>> Thanks in advance
>>>>
>>>> regards
>>>>
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at lists.opensips.org
>>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>
>>
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>>
>
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 list
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