Re: Calls to Public IP addresses from a TraversalClient

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Take a look at a level 5 trace of the call how the VCS rewrites the call
destination.
There are multiple possibilities where it may put the destination IP.

Regards,
Jan

Sébastien Bonnaire wrote:
> Thank you jan for your answer.
> 
> I followed every recommandation, but situation is still the same :
> - a System Registered to the traversal server uses the "explicit" policy
> - a System Registered to the vcs control : its call is routed correctly to the gnugk (traversal server) but then the gnugk uses the dns policy to route the call
> 
> Note : when using the dns policy the h323id is filled with the dialed string. That prevents me to route calls to RADVISION MCU
> 
> Thanks for your answers. 
> 
> Sebastien 
> 
> Le 19 mars 2013 à 08:19, Jan Willamowius <jan@xxxxxxxxxxxxxx> a écrit :
> 
> Hi Sebastien,
> 
> sending IP calls through a traversal server works, but you have to make
> sure the internal gatekeeper has the 'explicit' policy _after_ the
> 'neighbor' policy. Otherwise it will try to handle all IP calls by
> itself (which is bound to fail).
> 
> You should also include the SendIPs= switch in the [Neighbor::]
> section to configure which IP ranges you want to send through the
> traversal zone.
> 
> Regards,
> Jan
> 
> -- 
> Jan Willamowius, Founder of the GNU Gatekeeper Project
> EMail  : jan@xxxxxxxxxxxxxx
> Website: http://www.gnugk.org
> Support: http://www.willamowius.com/gnugk-support.html
> 
> Relaxed Communications GmbH
> Frahmredder 91
> 22393 Hamburg
> Geschäftsführer: Jan Willamowius
> HRB 125261 (Amtsgericht Hamburg)
> USt-IdNr: DE286003584
> 
> 
> Sébastien Bonnaire wrote:
> > Hi,
> > 
> > In my configuration, i've got the following :
> > Endpoint ---> Tandberg VCS ---(H460.18)---> GNUGK Traversal Server --->
> > public IP Address
> > 
> > The GNUGK version is 3.1.0, the same problem appears in 3.2.0 version.
> > The GNUGK configuration is the following :
> > 
> > [RoutingPolicy]
> > default=internal,explicit,neighbor,dns
> > 
> > [RasSrv::Neighbors]
> > GKinternal=Generic
> > 
> > [Neighbor::GKinternal]
> > GatekeeperIdentifier=GKinternal
> > Host=xxx.xxx.xxx.xxx
> > Dynamic=1
> > AcceptPrefixes=*
> > H46018Client=0
> > H46018Server=1
> > AuthUser=intgk
> > ;Password=intgk
> > 
> > First of all, i should disable password for the H.460.18 connection because
> > the VCS do not send authentication within the LRQ.
> > Then, i was able to do outgoing calls to public IP address (to a codian MCU
> > or a regular Endpoint), but some services are not accepting my calls. This
> > problem is not appearing on the endpoint locally registered to GNUGK.
> > 
> > After a search into logs and Tcpdump, i was able to find the problem :
> > - the RoutingPolicy used for any call to a public IP address from the GNUGK
> > is "explicit" => that's what i was expecting
> > - the RoutingPolicy used for any call to a public IP address from my VCS is
> > "dns" => that's a surprise
> >   => when looking at the Tcpdump trace i can see the setup going out with
> > an H323-ID destinationinfo set to "ip$yyy.yyy.yyy.yyy:1720" which seams to
> > be refused by the remote party.
> > 
> > Would you be kind enough to tell me if i can tweak my configuration to
> > remove this H323-ID for this particular destination ?
> > 
> > Best regards,

-- 
Jan Willamowius, jan@xxxxxxxxxxxxxx, http://www.gnugk.org/

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