Hi,

I have a VCS Expressway on another site of our corporate network as an entry 
point for video infrastructure. Between my LAN and this device, there is a 
firewall with a static 1:1 NAT.

I'd like to run a GnuGK instance inside my internal network with endpoints 
registered to it. I would like those endpoints not to know anything about the 
network setup. I'd also like to keep GnuGK behind my internal firewall for 
security reasons. 

I would have thought that the following should do the trick. I would have hoped 
that GnuGK would redirect calls from internal endpoint 192.168.77.129 to 
itself, due to the "InternalNetwork" and "ProxyAlways" setting. It would 
connect to the VCS Expressway at 10.0.1.1. When a call is made from internal, 
it would tell the endpoint to send RTP data to GnuGK, then create a 
H460.18/H460.19/RTP-Multiplex client connection and proxy the data.

Now, when I run this, calls to numbers registered with the VCS get connected, 
however no video ever goes through. Looking at network traces on GnuGK, it 
seems that only call signaling is routed, and further connections are made 
directly from the endpoint to the VCS (which does not work due to the network 
situation).

Is there any way to FORCE GnuGK to Proxy communications always, irrespective of 
number of network interfaces, etc.?

I am running gnugk-3.0

Any ideas?

Thanks, best,
Florian.



[RoutedMode]
GKRouted=1
H245Routed=0
CallSignalPort=1720
CallSignalHandlerNumber=4
AcceptNeighborsCalls=0
AcceptUnregisteredCalls=0
RemoveH245AddressOnTunneling=1
RemoveCallOnDRQ=0
DropCallsByReleaseComplete=1
SendReleaseCompleteOnDRQ=1
SupportNATedEndpoints=1
ForwardOnFacility=1
EnableH46018=1

[Proxy]
Enable=1
InternalNetwork=192.168.77.0/24
ProxyAlways=1
ProxyForNAT=1
RTPMultiplexing=1

[RasSrv::Neighbors]
VCSServer=GnuGk

[Neighbor::VCSServer]
Host=10.0.1.1:6002
SendPrefixes=*
AcceptPrefixes=*
H46018Client=1
H46018Server=0
SendAuthUser=test
SendPassword=test


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