Thanks, Stewart for reply.
At 03:01 PM 11.09.2004, you wrote:
Hi Ganbold,
You should have:
[RoutedMode] GKRouted=1 H245Routed=1 SupportNATedEndpoints=1
and (depending on your NATs) you may need
[Proxy] ProxyForNAT=1
I have these options in gnugk configuration.
To get an incoming call through a NAT, you also need to forward the signaling, H.245, and media ports, or put the destination host in the DMZ. Fast start and/or H.245 tunneling may help, if supported by your endpoints.
You mean port redirecting in NAT?
Most folks that use gnugk have hardphones, ATAs, and/or gateways, or interoperate with ITSPs or existing H.323 networks. If you are just trying to talk between PCs, IMO it will be easier if you use IM or SIP-based clients; they are more NAT-friendly.
The reason why I'm testing MyPhone is I don't have hardphones right now and
soon I will get some h323 hardphones. So I'm just preparing to be ready for hardphones.
If you don't have any administrative control over the NATs, you may not be able to get incoming H.323 calls at all.
I have full control over NAT.
If you need multiple endpoints on different private addresses behind the same NAT, you should consider running another gatekeeper there, otherwise you'll have a configuration nightmare.
I see. I have 3 scenarios.
1. Endpoints from same private IP network behind the same NAT and gnugk is in public network.
In this case probably the best way is to install gnugk on private network also and forward internal requests to outside gnugk
or directly to outside gateway. I just wanted to know whether it works or not.
2. Endpoints on different private network behind same NAT. Probably it is still same as previous one.
3. Endpoints on different private network behind different NAT. Probably as you suggested there should be another gatekeeper,
but I rather prefer to not have one if one gnugk is enough and will work.
However if there is really a lot of configuration nightmare with one gnugk I should test multiple gnugks. The reason I just want
one gnugk is, it will be easier for billing, I thought.
What do you think should I consider on above 3 scenarios?
If you proceed and still have trouble, use the tracing features of gnugk or Ethereal to find out what is failing.
Ok.
thanks in advance,
Ganbold
--Stewart
----- Original Message ----- From: "Ganbold" <ganbold@xxxxxxxxxxxxx> To: <openh323gk-users@xxxxxxxxxxxxxxxxxxxxx> Sent: Friday, September 10, 2004 10:01 AM Subject: gnugk behind NAT questions
Hi all,
I'm using gnugk 2.2beta4 in FreeBSD 4.10 -STABLE system.
I tried to make calls like below using gnugk, but it is not working.
MyPhone1 -> NAT -> gnugk 2.2.beta4 -> NAT -> MyPhone2
where MyPhone1 is in 192.168.0.0 network and MyPhone2 is in either 192.168.0.0 or 192.168.32.0 network,
and gnugk has public IP address.
Is it possible to make gnugk work like this way?
How should configuration look like? Is there any other things should I consider?
thanks in advance,
Ganbold
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