Re: firewall ports opening for gnugk 2.3

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Am Samstag, den 04.02.2012, 19:07 +0530 schrieb Vineet Menon:

> I want to route calls using gnugk 2.3 as proxy. What all ports should
> I open up in firewall optimally?
> Is TCP 1720 sufficient?

No. You will need at least port 1720/tcp for H.225 CS and four ports for
RTP. More if you want more than one call at the same time, although I
think, more recent versions of the GGK may multiplex the RTP so that you
indeed only need to ports for the RTP.

If your H.245 is not tunneled in H.225 (on port 1720/tcp), you'll need
additional TCP ports for this. Whether it is tunneled and stays so
depends pretty much on the endpoints.

And finally it depends on how you configure the GGK "to route calls [..]
as a proxy". If you route calls by exchanging LRQ with other
gatekeepers, you will need port 1719/udp. The same is true, if clients
have to register through the firewall. But if the GGK and all the
clients are on one side of the firewall and you route the calls using
[PermanentEndpoint] or "RouteToGateway", you do not need 1719/udp.

Regards
	David

-- 
David Dahlberg <david.dahlberg@xxxxxxxxxxxxxxxxxx>    

Fraunhofer FKIE, Dept. Communication Systems (KOM) | Tel: +49-228-9435-845
Neuenahrer Str. 20, 53343 Wachtberg, Germany       | Fax: +49-228-856277


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