I'll try to give some quick practical help thought don't know pricisely your config
1° - if the (GK | EP) is behind a router (or firewall) then you'll have to forward the port used by the (GK | EP) to the ( GK | EP ) box specially the h245 ports; if both the GK and the EP are behind the router (or firewall) then the ports should be redirected to the GK (to use it in full proxy),
2°- Check if faststart is accepted disable it on your EP,
3°- Activate the h245tunneling on your EP,
4°- have these to parameters in your GK config file:
[RoutedMode] GKRouted=1 H245Routed=1 CallSignalPort=1721 CallSignalHandlerNumber=2 RemoveH245AddressOnTunneling=1 DropCallsByReleaseComplete=1 SupportNATedEndpoints=1 SendReleaseCompleteOnDRQ=1 ForwardOnFacility=1 ShowForwarderNumber=1
[Proxy] Enable=1 InternalNetwork=YOUR INTERNAL NETWORK ProxyForNAT=1
Good luck, Ibrahima
From: openh323gk-users-request@xxxxxxxxxxxxxxxxxxxxx Reply-To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Subject: Openh323gk-users digest, Vol 1 #1294 - 2 msgs Date: Sat, 31 Jul 2004 20:26:49 -0700
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Today's Topics:
1. Re: Help (Stewart Nelson) 2. RE: Help (Abano, Fernando A. (ePerformax))
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Message: 1 From: "Stewart Nelson" <sn@xxxxxxxxxxx> To: <openh323gk-users@xxxxxxxxxxxxxxxxxxxxx> Subject: Re: Help Date: Sat, 31 Jul 2004 13:42:05 -0700 Reply-To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx
Hi Fernando,
> When I changed Gkrouted and H245routed to zero, and DMZed an EP, > I was able to call the DMZed EP but had no audio on both ends.
This is to be expected. The H.245 packets specified private addresses, and audio sent there would obviously not arrive.
> I them changed to Gkrouted=0, H245routed=1. The NATed EP called the > DMZed EP and audio was heard on the DMZed EP but the NATed EP has no > audio. The NATed EP is the EP on the Linksys router. Any idea why?
The Linksys probably sent out the audio packets with a different source port than the media port used by the EP. There was then no NAT association for the incoming stream.
See if setting ProxyForNAT=1 helps. Depending on your network, this may cause problems with delay and/or choppy voice, and has a performance penalty, so it may not be a solution for a production environment.
Alternatively, can you set the EP on the Linksys as DMZ also? If not, set up UDP port forwarding for the media ports. If you want incoming calls to work, you also need to forward TCP port 1720, and whatever is needed for H.245 . If you can't get incoming H.245 to work properly, use fast start and/or H.245 tunneling.
Also, note that H245Routed implies GKRouted. Otherwise, the EP would not know to send the H.245 to the GK in the first place!
Good luck,
Stewart
--__--__--
Message: 2 From: "Abano, Fernando A. \(ePerformax\)" <fabano@xxxxxxxxxxxxxx> To: <openh323gk-users@xxxxxxxxxxxxxxxxxxxxx> Subject: RE: Help Date: Sun, 1 Aug 2004 10:56:50 +0800 Organization: ePerformax Contact Centers Corp Reply-To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx
Hi Stewart,
I was set ProxyForNAT=1 since the start but it does not help. Would you know if there is some kind of development that handles encapsulation of these packets so that they reach their destination EPs whether the EP is NATed or not? Am very new to this, but wouldn't it be nice if there is some kind of functionality that has an ability to preserve the packets even if they are inside a firewall.
-----Original Message----- From: openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx [mailto:openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Stewart Nelson Sent: Sunday, August 01, 2004 4:42 AM To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Subject: Re: Help
Hi Fernando,
> When I changed Gkrouted and H245routed to zero, and DMZed an EP, I > was able to call the DMZed EP but had no audio on both ends.
This is to be expected. The H.245 packets specified private addresses, and audio sent there would obviously not arrive.
> I them changed to Gkrouted=0, H245routed=1. The NATed EP called the > DMZed EP and audio was heard on the DMZed EP but the NATed EP has no > audio. The NATed EP is the EP on the Linksys router. Any idea why?
The Linksys probably sent out the audio packets with a different source port than the media port used by the EP. There was then no NAT association for the incoming stream.
See if setting ProxyForNAT=1 helps. Depending on your network, this may cause problems with delay and/or choppy voice, and has a performance penalty, so it may not be a solution for a production environment.
Alternatively, can you set the EP on the Linksys as DMZ also? If not, set up UDP port forwarding for the media ports. If you want incoming calls to work, you also need to forward TCP port 1720, and whatever is needed for H.245 . If you can't get incoming H.245 to work properly, use fast start and/or H.245 tunneling.
Also, note that H245Routed implies GKRouted. Otherwise, the EP would not know to send the H.245 to the GK in the first place!
Good luck,
Stewart
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