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How to open a port on the ZyXEL Prestige 623 41

ZyXEL Prestige623-41 routers include a very basic firewall that helps protect your home network form unwanted access from the internet. Since this firewall blocks incoming connections you may need open a port through it for certain games and applications. This process of opening a port is frequently called a port forward, since you are forwarding a port from the internet to your home network.

The basic process to open a port is:

  1. Setup a static ip address on either your computer or device that you want to forward a port to.
  2. Login to your ZyXEL Prestige 623 41 router.
  3. Navigate to the port forwarding section.
    • Click the Services button.
    • Select NAT Rule Entry in the drop down.
    • ,NAT Options
    • Click the Add button.
  4. Create a port forward entry.

While these steps might seem difficult at first, we will walk you through each step for your ZyXEL Prestige623-41 router.



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Step 1

It is important to setup a static ip address in the device that you are forwarding a port to. This ensures that your ports will remain open even after your device reboots.

  • Recommended - Our free program will setup a static IP address for you.
    Download Network Utilities today!

  • Or follow our Static IP Address guide to setup a static IP address.

Step 2

Now we are going to login to your ZyXEL Prestige623-41 router. Your router has a web interface, so you will login to it using your web browser. This can be either Chrome, Firefox, Internet Explorer, or Edge. It usually does not matter which browser you choose to use.

Open up your web browser and find the address bar. It should look something like this:


192.168.1.1

In the picture above the address bar has 192.168.1.1 in it. Just replace all of that with the IP address of your ZyXEL Prestige623-41 router. Your router's ip address can also be refered to as your computer's default gateway.

By default the IP address is set to: 192.168.1.1

After entering the IP address of your router you can simply press enter. If all goes well you will see the following screen:

ZyXEL Prestige623-41 Screenshot 1

You should see a box prompting you for your username and password.

  • The Default ZyXEL Prestige623-41 Router Username is: admin
  • The Default ZyXEL Prestige623-41 Router Password is: 1234

Enter your username and password, and then click the Login button to log in to your ZyXEL Prestige623-41 router.

ZyXEL Usernames and Passwords

If your username and password do not work then please visit our Default ZyXEL Router Passwords page.

If you still can't login to your router because you forgot your ZyXEL Prestige623-41 router username and password, use our How to Reset a Router Password guide to set your ZyXEL Prestige623-41 router back to its factory settings.

Step 3

Now we need to find the port forwarding section in your router. Here's how you do it. Starting from the first page in your router:

ZyXEL Prestige623-41 Screenshot 2

Click the Services button near the top of the page.

ZyXEL Prestige623-41 Screenshot 3

Select NAT Rule Entry from the NAT Options drop down box.

ZyXEL Prestige623-41 Screenshot 4

Click the Add button near the bottom of the page.

ZyXEL Prestige623-41 Screenshot 5
Step 4

Now we are ready to enter some data in your router. In order to show you exactly how to configure your router we need you to answer 2 questions:

Application :
IP Address :

(The IP Address to forward to should be the same "static ip address" that you setup above)

Our router simulator shows you exactly what data to enter in your router based on your choices above. We are currently showing the ports for XBox Live. You should fill out the boxes in the router as you see them here:

ZyXEL Prestige623-41 Screenshot 6

Click the Close button near the bottom of the page.

Click the IP Filter link near the top of the page.

ZyXEL Prestige623-41 Screenshot 7

Select Low from the Security Level drop down box.

Select Accept from the Public Default Action, Private Default Action and DMZ Default Action drop down box.

Click the Submit button near the bottom of the page.

Click the Admin button near the top of the page.

You should now see a new menu. In this new menu, click Commit & Reboot.

ZyXEL Prestige623-41 Screenshot 8

Click the Commit button near the bottom of the page.

Click the Reboot button near the bottom of the page.

And that is it! You are done!


Test if Your Ports are Open

Now that you have forwarded ports on the ZyXEL Prestige623-41 you should test to see if your ports are forwarded correctly.

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

ZyXEL Prestige623-41 Router Screenshots.

We also have the Internets largest collection of Router Screenshots.

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