Tandberg NAT issues

[jasonv]

Hi,

It looks like the search feature would go as small as "NAT" so i guess I am going to have to ask these questions again.

First I am relatively new to video conferencing. I have two older tandberg 1000 (standalone) units at two offices connected by T1's (r1 to r2, r2 to r3) at the same router that is connected to the internet. I have successfully configured the Tandberg #1 and my cisco router to NAT out to the internet (NAT takes place at R2), the problem is that it will not work going from tandberg1 to tandberg2, I think because the nat is not processing at R2 because the link to R3 is not a nat outside (it's a nat inside so those clients can get to the internet). The tandberg seems to really want to be thought of by it's public address but can't connect to #2 on either address. If I turn nat'ing off on the tandberg they connect wonderfully via private IPs. It's all private addresses behind R2.

So, is there a better solution to this big ugly mess? better network config or hardware?

Thanks,
Jason


Internet
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R2------R3----tandberg#2
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R1
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tandberg #1

[robertk]

This type of problem has been resolved in later versions of the Tandberg Classic software.

Which software Release do you have on the Tandberg 1000? (I assume they are not MXPs!)

You need atlaest B9 or E4 software to have the AUTO NAT feature.

With this feature set to AUTO the codec switches between using NAT or not based on the IP address you are dialing. Dialing a "registered" BLACK IP address, (IE the series 10.*.*.*, 192.168.*.*, 172.*.*.*) then the codec will not use the NAT feature, dialing any other IP address the codec will use the NAT feature.

Check out section 4.2.2 in the release notes:

http://ftp.tandberg.net/pub/software/endpoints/classic/e-series/TANDBERG%20Software%20Release%20-%20Endpoints%20(E4).pdf


//Robert

[jasonv]

yep, they are old, running B7.1.

I knew there had to be an easy answer.

Thanks so much,
Jason