If you don't know what Port Forwarding is yet, you might want to start by reading our What is Port Forwarding guide.
You might also be interested in our huge collection of Router Screenshots where you can see every page of every router that we know of.
To setup port forwarding on the Asus RT-N66U 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:
Now we need to know your routers IP address. You can find it a variety of ways.
It's ok if you don't know your Asus RT-N66U router's internal IP address. You can find it by doing one of the following:
Open a web browser like Internet Explorer or Firefox. Enter the internal IP address of your router in the address bar of your browser.
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 Asus RT-N66U router. By default the IP address should be set to 192.168.1.1.
You should see a box prompting you for your username and password. Enter your username and password now.
Click the Ok button to log in to your Asus RT-N66U router.
Please visit our Default Asus Router Passwords page if the username and password shown below did not work for you.
If you can't login to your router because you forgot your Asus RT-N66U router username and password, use our How to Reset a Router Password guide to set your Asus RT-N66U router back to its factory settings.
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 Asus RT-N66U router to save you time and hassle.
Now that you are logged in to your Asus RT-N66U router you should see the following:
Click the WAN button near the left of the page.
The menu near the top should change. In this new menu, click Virtual Server / Port Forwarding.
Put a dot into the Enable Port Forwarding Yes radio button.
Enter the name of the program into the Service Name box. It doesn't really matter what you put into this box, but something that will remind you why these ports are being forwarded would be a good idea.
If you are forwarding a range of ports, enter the port range into the Port Range box. The lowest port in the range should be entered first, then a dash, and then the highest port in the range. 500-600 is an example of a port range.
Enter the ip address to forward these ports to into the Local IP box. If you are forwarding ports so you can run a program on your device, you should enter your device's ip address into that box.
If you are forwarding a range of ports, enter the port range into the Local Port box. The lowest port in the range should be entered first, then a dash, and then the highest port in the range. 500-600 is an example of a port range.
Use the Protocol drop down box to select the protocol type of the ports you are forwarding.
When you are finished, click the Add button.
When you're finished, click Apply near the bottom of the screen to save your changes.
And that's it! You're done!
Now that you have forwarded ports for any port on the Asus RT-N66U you should test to see if your ports are forwarded correctly.