I remember that there were some settings about asymmetric_clients, you must 
check the docs.

Adrian

On Jun 17, 2010, at 7:42 PM, Brett Nemeroff wrote:

> Yeah, I'm giving RTPProxy a shot now.. would openser+MP1 work without 
> tweaking? 
> 
> Thanks!
> 
> 
> On Thu, Jun 17, 2010 at 12:41 PM, Adrian Georgescu <[email protected]> 
> wrote:
> We dropped support for asymmetric routing in MediaProxy 2.0.  
> 
> RTP proxy might be able to do such trick, you must check the documentation as 
> it has some corner features that might cover this scenario.
> 
> Last solutions would be some SBC or an old openser 1.3 +mediaproxy 1.0.
> 
> 
> Adrian
> 
> 
> On Jun 17, 2010, at 7:35 PM, Brett Nemeroff wrote:
> 
>> Adrian,
>> I appreciate your quick reply. 
>> 
>> I totally agree with your assessment that building such a fix only 
>> exacerbates this problem by making it "acceptable".
>> 
>> However, the "powers that be" are not going to fix themselves. You know how 
>> this is. The offending carrier is Qwest.
>> 
>> If it wasn't such a large company, I could see isolating them and saying 
>> that they just don't get the traffic. However, companies like Qwest simply 
>> don't care if your stuff doesn't work with theirs. So what I'm looking for 
>> is without question a work around.
>> 
>> I don't disagree that it's a bad model, but it's all they offer. Which kinda 
>> makes "MediaProxy" incompatible with Qwest. 
>> 
>> What would you recommend? Do you think rtpproxy operates any differently?
>> 
>> Thanks,
>> Brett
>> 
>> 
>> 
>> 
>> 
>> On Thu, Jun 17, 2010 at 12:30 PM, Adrian Georgescu <[email protected]> 
>> wrote:
>> Brett,
>> 
>> Is simply bad practice to use asymmetric ports for both signaling and media. 
>> Actually there is an RFC that mandates the use of this model for signaling 
>> (rfc3581) but then they must honor it. For media there might be another one 
>> if I am not mistaken.
>> 
>> All in all, is a poor choice that lead to investment into equipment that 
>> does not use symmetric model and this will only yield this sort of defensive 
>> response because there is nobody around to fix that implementation or due to 
>> prohibitive costs of moving away from it.
>> 
>> Adrian
>> 
>> 
>> 
>> On Jun 17, 2010, at 6:44 PM, Brett Nemeroff wrote:
>> 
>> > Hello All,
>> >
>> > Jeff Pyle brought this issue up some time ago. Using Mediaproxy, basically 
>> > I have a provider that says in SDP to use one port, but sources it's own 
>> > RTP from a different port.
>> >
>> > I'm not sure if this *actually* breaks any kind of RFC.. What happens is 
>> > Mediaproxy tries to stuff RTP into the port it SEEs RTP coming from 
>> > (symmetrically). So it's basically completely ignoring the SDP which very 
>> > clearly says to use a different port.
>> >
>> > The provider states that this is our lack of compliance and that we aren't 
>> > following the SDP. Which is true.
>> >
>> > So who's at fault here? Mediaproxy? Or the provider? This is direct to a 
>> > major Tier-1 provider (fwiw).
>> >
>> > Just browsing the Mediaproxy code, it *appears* to not use the SDP port 
>> > for anything other than the logs.
>> >
>> > How would RTPProxy handle this call? Will it work the same way? Or will it 
>> > honor the SDP properly?
>> >
>> > Thanks!
>> > -Brett
>> >
>> >
>> > _______________________________________________
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>> > [email protected]
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>> 
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