[Kamailio-Users] received=IP added in Via

[catalina oancea]

Ok if it's according to the rfc I guess I must accept it.

Thanks
Catalina


2009/7/17 Alex Balashov <abalashov at evaristesys.com>:
>
> Catalina,
>
> Klaus is right.  See RFC 3261 18.2.1 ("Receiving Requests"):
>
>   When the server transport receives a request over any transport, it
>   MUST examine the value of the "sent-by" parameter in the top Via
>   header field value.  If the host portion of the "sent-by" parameter
>   contains a domain name, or if it contains an IP address that differs
>   from the packet source address, the server MUST add a "received"
>   parameter to that Via header field value.  This parameter MUST
>   contain the source address from which the packet was received.  This
>   is to assist the server transport layer in sending the response,
>   since it must be sent to the source IP address from which the request
>   came.
>
> -- Alex
>
>> Hi!
>>
>> catalina oancea schrieb:
>>> No, actually the value in the received parameter is not equal to the
>>> IP in the Via. I looked in the code and this seems to be the intended
>>> behavior. It would be nice to be able to disable it, but I don't think
>>> there is one.
>>
>> Then it is standard conform. If the request is received from a different
>> address then advertised, this parameter must be added.
>>
>> This is because SIP requires to send the response to the IP address from
>> which the request was received.
>>
>> regards
>> klaus
>>
>>>
>>> Thanks anyway
>>> Catalina
>>>
>>>
>>> 2009/7/16 Klaus Darilion <klaus.mailinglists at pernau.at>:
>>>> catalina oancea wrote:
>>>>> Form what I found in
>>>>> http://lists.kamailio.org/pipermail/devel/2008-August/015080.html, it
>>>>> seems to me that it's a bug that kamailio adds received=IP parameter
>>>>> although force_rport was not called.
>>>> The bug was something else.
>>>>
>>>>>> Does anybody know how to disable the received=IP Via parameter that
>>>>>> is
>>>>>> added by default from kamailio? For the case I want to disable it in,
>>>>>> I have no NAT handling. Also, I have:
>>>>>> dns=no
>>>>>> rev_dns=no
>>>>
>>>> In this case "received" will only be added if the advertised IP is
>>>> different
>>>> than the IP from which the request was received. (according to RFC).
>>>>
>>>> So, you do not use rport but kamailio adds the received parameter and
>>>> the
>>>> value in the received parameter is identical to the IP in the Via?
>>>>
>>>> regards
>>>> klaus
>>>>
>>
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>>
>
>
> --
> Alex Balashov
> Evariste Systems
> Web    : http://www.evaristesys.com/
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>
>