Re: RTP Multiplexing issue

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Hi Ehren,

I think that should work. Are you using GnuGk 3.1 or some older version ?
3.1 has a few bugfixes related to multiplexing and H.460.19 port detection.

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


Ehren  Jarosek wrote:
> We're trying to setup a set of gatekeepers here and are running into some issues with the media traversal.
> 
> Our configuration is the following based on neighboring gatekeepers using traversal zones and H.460.19 multiplexing.
> 
> Endpoint A    <--------->   GK Internal #1        <---------->             GK External              <---------->                GK Internal #2       <----------> Endpoint B
>                                                  Traversal Client       H.460.19m             Traversal Server     H.460.19m                 Traversal Client
>                                                                                                                                     |
>                                                                                                                                     |
>                                                                                                                           Endpoint C
> 
> So, call control works fine.  I can initiate calls from one end to the other.  Issue is media traversal.  I think the issue is in the multiplexing.
> 
> Endpoint A <--> Endpoint B:            No media either direction
> Endpoint A <--> Endpoint C:            Media from A -> C but not from C->A
> 
> I stuck wireshark on the GK External and GK Internal #1 and was surprised a bit.  From what I can see the traffic is moving between the gatekeepers but does not make it to the endpoints.
> 
> i.e. Endpoint A call to Endpoint C
> Endpoint A Media
> A -> GK #1 -> GK External -> C                    GOOD
> Endpoint C Media
> C -> GK External -> GK #1                             MISSING GK#1 -> Endpoint A traffic
> 
> 
> My configuration files:
> GK Internal #1
> ---------------------------------------------------------------------------
> [Gatekeeper::Main]
> Name=GK1
> Fortytwo=42
> TimeToLive=600
> 
> [RoutedMode]
> GKRouted=1
> H245Routed=1
> CallSignalPort=1720
> RemoveH245AddressOnTunneling=1
> DropCallsByReleaseComplete=1
> SupportNATedEndpoints=1
> Q931PortRange=30000-39999
> H245PortRange=40000-49999
> EnableH46018=1
> 
> [Proxy]
> Enable=1
> ProxyAlways=1
> RTPMultiplexing=1
> RTPMultiplexPort=63000
> RTCPMultiplexPort=63001
> T120PortRange=50000-59999
> RTPPortRange=50000-59999
> 
> [RasSrv::Neighbors]
> GKExternal=Generic
> 
> [Neighbor::GKExternal]
> ;from unknown IP
> Host=xxx.xxx.xxx.xxx
> SendPrefixes=*
> AcceptPrefixes=*
> H46018Client=1
> H46018Server=0
> SendAuthUser=********
> SendPassword=**************
> ForwardHopCount=3
> ---------------------------------------------------------------------------
> 
> 
> GK External
> ---------------------------------------------------------------------------
> [Gatekeeper::Main]
> Fortytwo=42
> TimeToLive=600
> Name=ExternalGK
> 
> [RoutedMode]
> GKRouted=1
> H245Routed=1
> CallSignalPort=1720
> RemoveH245AddressOnTunneling=1
> DropCallsByReleaseComplete=1
> SupportNATedEndpoints=1
> Q931PortRange=30000-39999
> H245PortRange=40000-49999
> EnableH46018=1
> AcceptUnregisteredCalls=1
> 
> [RasSrv::ARQFeatures]
> ArjReasonRouteCallToGatekeeper=0
> SendRIP=9000
> 
> [Proxy]
> Enable=1
> ProxyAlways=1
> RTPMultiplexing=1
> RTPMultiplexPort=63000
> RTCPMultiplexPort=63001
> T120PortRange=50000-59999
> RTPPortRange=50000-59999
> [RasSrv::Neighbors]
> GK1=Generic
> GK2=Generic
> 
> [RasSrv::LRQFeatures]
> ForwardResponse=1
> 
> [Neighbor:: GK1]
> GatekeeperIdentifier=GK1
> Host=192.168.254.28
> SendPrefixes=*
> AcceptPrefixes=*
> H46018Client=0
> H46018Server=1
> AuthUser=**********
> Password=**************
> ForwardResponse=1
> 
> [Neighbor:: GK2]
> GatekeeperIdentifier=GK2
> Host=192.168.100.55
> SendPrefixes=*
> AcceptPrefixes=*
> H46018Client=0
> H46018Server=1
> AuthUser=**********
> Password=*************
> ForwardResponse=1
> ---------------------------------------------------------------------------
> 
> Thank you for any help!
> 
> Ehren
> 


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