Re: [Users] rport in via header - sr-users

11 Aug 2005

Hello,

On 08/11/05 04:33, ranveer kunal wrote:

...
 hey daniel,
               The packet from the ser proxy is statelessly forwarded
by a gateway that is inline with proxy, now i want next hop proxy to
reply on the port of the gateway rather than port of proxy. that is y
i need proxy to send rport.

proxy--------------gateway--------------next hop proxy

proxy -> ip1:port1-> gateway -> ip2:port2 -> next hop proxy
next hop proxy -> replies to ip2:port1 (hybrid) -> screws my setup

 the next hop proxy is broken, why does it reply to ip2:port1? It should 
reply to source_ip and source_port of the received request. The proxy is 
not aware at all about ip2:port2 used by gateway.

Daniel

...
 can you suggest me some way to overcome this.

Regards,
Ranveer. 

On 8/11/05, Daniel-Constantin Mierla &lt;daniel(a)voice-system.ro&gt; wrote:

 Hello,

On 08/10/05 21:10, ranveer kunal wrote:

 hi daniel,
            as far as i have explored force_rport(), places the rport
parameter in the topmost via header and not in its own via header. am
i right ?

example :

UAC -> (via1:via2:via3)proxy(force_rport)->(via1:via2:via3,rport:via4)next proxy

i want this :
UAC -> (via1:via2:via3)proxy(force_rport)->(via1:via2:via3:via4,rport)next proxy

Please clarify it ?

 yes, it is like that. And this is how it is supposed to be, according to
RFC3581. Why do you need it in proxy's via? The proxy will look at the
second via to get the destination address for reply.

Daniel

>Regards,
>Ranveer.
>
>On 8/10/05, Daniel-Constantin Mierla &lt;daniel(a)voice-system.ro&gt; wrote:
>
>
>      
>
>>Hello,
>>
>>you have to use force_rport() in the configuration file for the request
>>you want rport parameter in VIA.
>>
>>Daniel
>>
>>
>>On 08/10/05 20:44, ranveer kunal wrote:
>>
>>
>>
>>        
>>
>>>hi all,
>>>      Is there a way to configure openser so that it sends rport in
>>>via header ? Actually th packet from server is reverse natted through
>>>another system using any random port, i want it the reply to come on
>>>the same port . thanks ....
>>>
>>>Regards,
>>>Ranveer.
>>>
>>>
>>>
>>>
>>>          
>>>
>
>
>      
> 