Re: Tandberg Videoconferencing via ISA or NAT?

[Laurie Coles <lcoles () CBU EDU>]

We have a Tandberg 2500 also. I had to give it a fixed internal and external
IP address to be able to use this equipment over the internet. There is a
place in the software to give the 2500 an IP address along with the gateway
and subnet mask. Anyone calling you would just enter the external fixed IP
address and if you are calling someone you would enter their fixed external
IP address. The IP address would be in lieu of calling a telephone number.
This would also have to be translated in your firewall.



If it is dial up using ISDN you shouldn't need anything other than the
telephone numbers.



Thanks, Laurie Coles



  _____

From: Charlie Prothero [mailto:Charlie.Prothero () KEYSTONE EDU]
Sent: Wednesday, May 17, 2006 2:37 PM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: [SECURITY] Tandberg Videoconferencing via ISA or NAT?



Hi, all!  We have a couple of Tandberg 2500 videoconferencing systems that
are primarily used inside our private network to connect our main campus and
a remote (T1 connected) site 60 miles away.  They work great, but have never
needed to connect anywhere but to each other.  Now, we're looking at
connecting to the outside world for the first time, and the documentation we
have isn't clear on how to do that.  We use 10.x.x.x private addresses
inside our network and have MS NAT and ISA servers for connectivity to the
Internet.  We have tried simply turning on NAT in the Tandberg's codec, and
supplying the address of our NAT box, but we're obviously missing something.
ISA seems to have a comprehensive H.323 gatekeeper module, but all
documentation I have on it is geared towards Netmeeting, and I don't know
how applicable that would be.



If anyone has a similar setup, I would most appreciate hearing how you made
it work.



Thanks!



- Charlie





Charlie Prothero

CIO



Keystone College <http://www.keystone.edu/>

One College Green . La Plume, PA 18440

570-945-8015