Port Forwarding the Telenet TNDSL-2120 Router for Air Cam Live

What is Port Forwarding?

If you don't know what Port Forwarding is yet, you might want to start by reading our What is Port Forwarding guide.

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Home > Routers > Telenet > TNDSL-2120 > Air Cam Live

Before Forwarding a Port Setup a Static IP Address

To setup port forwarding on the Telenet TNDSL-2120 router your device needs to have a static IP address. You should complete one of the following steps first:

Now that you have setup a Static IP Address on your device, please enter the IP address that you assigned to your device here:

Don't Skip This Step!

Login to the Telenet TNDSL-2120 Router

Now we need to know your routers IP address. You can find it a variety of ways.

How To Find Your Telenet TNDSL-2120 Router IP Address

It's ok if you don't know your Telenet TNDSL-2120 router's internal IP address. You can find it by doing one of the following:

Login To The Telenet TNDSL-2120 Router Using Your Web Browser

Open a web browser like Internet Explorer or Firefox. Enter the internal IP address of your router in the address bar of your browser.

Telenet TNDSL-2120 Screenshot 0

In the picture above the address bar has http://www.google.com in it. Just replace all of that with the internal IP address of your Telenet TNDSL-2120 router. By default the IP address should be set to

Telenet TNDSL-2120 Screenshot 1

We do not currently know the default username and password for your router. If you know them, please use our Comments page to let us know what they are. Thanks!

Please visit our Default Router Passwords page if the username and password shown above do not work for you.

How to Port Forward Air Cam Live on the Telenet TNDSL-2120

Having trouble forwarding ports on the Telenet TNDSL-2120?

If you are having trouble with this guide, then perhaps PFConfig may be your solution. PFConfig is a software tool that will automatically forward ports for your router to save you time and hassle.

Telenet TNDSL-2120 Router Port Forwarding Screenshots

Now that you are logged in to your Telenet TNDSL-2120 router you should see the following:

Telenet TNDSL-2120 Screenshot 2

Click the Advanced Setup link near the left of the page.

You should now see a new menu. In this new menu, click NAT.

You should now see a new menu. In this new menu, click Virtual Servers.

Telenet TNDSL-2120 Screenshot 3

Click the Add button near the center of the page.

Telenet TNDSL-2120 Screenshot 4

Forward Ports 1726 on the Telenet TNDSL-2120

We will list a series of lines here that will show you exactly how to forward the ports you need to forward. Air Cam Live requires you to forward the following ports: 1726. Go ahead and enter the settings shown above into the Virtual Servers menu.

Select a Service:  
Custom Server:  
Server IP Address:  
External Port Start External Port End Protocol Internal Port Start Internal Port End

When you're finished, click Save/Apply near the bottom of the screen to save your changes.

And that's it! You're done!

Test if Your Ports are Open

Now that you have forwarded ports for Air Cam Live on the Telenet TNDSL-2120 you should test to see if your ports are forwarded correctly.

To test if your port has been properly forwarded, you can use our Open Port Check tool. Our Open Port Check tool is the only online port checking tool with Guaranteed Results.

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