Re: [Openh323gk-developer] Re: ACF port

[Chih-Wei H. <cw...@li...>]

Markus Storm wrote:
> Markus Storm wrote:
> 
>>GK A is registered with GK B.
>>If GK A sends a ARQ with from a port != 1719 (say: 1234)
>>the ACF is sent back to 1234.
>>BUT, if B in turn is registered with GK C, then the
>>ACF B->A is always sent to the standard port (i.e. 1719).
>>
>>This causes problems on A.
>>
>>Can this be easily fixed such that ACF always go to the
>>same port that ARQ have come from ?
> 
> I dug a bit deeper but don't know how to best fix it.
> 
> Problem is that rx_port isn't stored before the rasHandler function is
> called from within H323RasSrv::Main(). I think it should be passed
> as an argument to the rasHandler functions and be stored somewhere, maybe
> in the pending ARQ list called from GkClient::SendARQ().
> GkClient::ProcessACF / PendingList::PendingARQ::DoACF build and send
> the ACF. They need to retrieve the stored port and send it there.

Yes. Indeed I think rx_port is not passed to rasHandler is a problem.
Fortunately most of rasHandlers don't depends on rx_port,
except OnARQ, as you described.
That's why I use the registered rasAddress of that endpoint
to reply ACF/ARJ.
Therefore, if the endpoint didn't use the registered rasAddress
to send ARQ and receive ACF/ARJ, there is a problem.

I don't this is a bug or problem in this behavior of the GnuGK.
The endpoint *should* use the registered rasAddres
to receive the reponse from GK. Shouldn't it?
Of course, the GnuGK as an endpoint has no such a problem.
It does use the registered rasAddress to send and receive RAS messages.

Thus, you should not have such a problem if GK A is the GnuGK. Isn't it?


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