Tandberg 150 & NAT

[areichel]

Help!

I am trying to setup a Tandberg 150 at my house. I have Roadrunner service. My cable modem is connected to a Linksys WRT54G Wireless G router.

I have the Tandberg setup for NAT, have put the public address for my cable modem in the appropriate space under advanced H.323 settings. I have assigned 192.168.1.102 for the IP address. I have opened port 1719 for UDP and routed it to 192.168.1.102, I have opened port 1720 for UDP and routed it to 192.168.1.102, I have opened ports 5555-5560 for TCP and routed it to 192.168.1.102, and I have opened ports 2326-2373 for UDP and routed it to 192.168.1.102.

Any other help would be appreciated- such as static or dynamic settings, Gateway settings, subnet settings, etc.

Help!!!

Thanks.

Andrew

[Sean Lessman]

Help!

I am trying to setup a Tandberg 150 at my house. I have Roadrunner service. My cable modem is connected to a Linksys WRT54G Wireless G router.

I have the Tandberg setup for NAT, have put the public address for my cable modem in the appropriate space under advanced H.323 settings. I have assigned 192.168.1.102 for the IP address. I have opened port 1719 for UDP and routed it to 192.168.1.102, I have opened port 1720 for UDP and routed it to 192.168.1.102, I have opened ports 5555-5560 for TCP and routed it to 192.168.1.102, and I have opened ports 2326-2373 for UDP and routed it to 192.168.1.102.

Any other help would be appreciated- such as static or dynamic settings, Gateway settings, subnet settings, etc.

Help!!!

Thanks.

Andrew
Make sure you are set to 'static' for your H.323 ports. Dynamic will use random ports between 1024-65535.

Also try putting your .102 address on the DMZ. The ports you have are correct. The UDP ports are slightly larger than necessary. You need 4 pairs in both directions (video, h.239, audio, FECC) so 2326+16 should do it.

As for the TCP ports, the behavior is not ideal for your situation, where the TCP ports will keep incrementing past 5560 for each call. We will change this in the future to behave like the MXP which will do a round robin 5555-5565 and then roll over to 5555 again.

For now, if the TCP port increments outside the range, reboot the system and it will start at 5555 again.

Sean

[areichel]

If I choose static IP over dynamic, what values should I place for my IP-subnet mask and gateway? should the gateway be the same as the public IP addy of the router(24.58.128.1), and the ip subnet comes up as 255.255.255.248.0. I am used to seeing a subnet of 255.255.255.0.

My issue is that many of the locations I connect to, particularly other Nat'd VC's, I receive no video, just audio. I have tried dropping the bandwidth way down, with no luck.

I can conect to other Public IP's, at 384 K bandwidths, with no problem.

IP's such as 61.197.225.89 in Tokyo, 140.242.250.203 in Andover, and 140.242.46.50 in the UK. I am in NY, by the way.

One last thing for Sean- I LOVE Tandberg products, but why don't they publish IP test numbers? The 12.35.161.140 loopback SUCKS! All of the numbers I am using for testing are PComs, and I am a strictly Tandberg house!

Thanks!

Andrew

[Sean Lessman]

If I choose static IP over dynamic, what values should I place for my IP-subnet mask and gateway? should the gateway be the same as the public IP addy of the router(24.58.128.1), and the ip subnet comes up as 255.255.255.248.0. I am used to seeing a subnet of 255.255.255.0.

My issue is that many of the locations I connect to, particularly other Nat'd VC's, I receive no video, just audio. I have tried dropping the bandwidth way down, with no luck.

I can conect to other Public IP's, at 384 K bandwidths, with no problem.

IP's such as 61.197.225.89 in Tokyo, 140.242.250.203 in Andover, and 140.242.46.50 in the UK. I am in NY, by the way.

One last thing for Sean- I LOVE Tandberg products, but why don't they publish IP test numbers? The 12.35.161.140 loopback SUCKS! All of the numbers I am using for testing are PComs, and I am a strictly Tandberg house!

Thanks!

Andrew
Hi,

I think I may have confused you. You can use either static or DHCP for your IP address. I was referring to 'static' or 'dynamic' H323 ports. This setting is found in the setting menu

Network
H323
Advanced H323

H323 Ports Static Dynamic

Static will use the ports described above with the caveats I gave in my previous post. There will be some improvements in the future. Dynamic will use random, unpredictable ports. Some firewalls view constant activity on the same ports as an attack and shut them down, so some people must use dynamic h.323 ports.

You can also telnet into the unit and do a 'netstat' and it will show all the connections. If you are not getting video or audio, you should see which ports are not connecting and this should help further troubleshoot why those connections are not going getting to the far end.

We can certainly improve our support for loopbacks and other products. Feedback is always appreciated. What about that loopback do you not like?

Thanks!

Sean