ZyXEL Prestige 645 Router Port Forwarding Guide
ZyXEL Prestige645 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:
- Setup a static IP address on either your computer or device that you want to forward a port to.
- Login to your ZyXEL Prestige 645 router.
- Navigate to the port forwarding section.
- Click the Advanced Setup link.
- Click on NAT Applications.
- Create a port forward entry.
While these steps might seem difficult at first, we will walk you through each step for your ZyXEL Prestige645 router.
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- Or follow our Static IP Address guides to setup a static IP address.
After setting up a static ip address on your devices you need to login to your router.
Now we are going to login to your ZyXEL Prestige645 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:
In the picture above the address bar has 192.168.1.254 in it. Just replace all of that with the IP address of your ZyXEL Prestige645 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: 192.168.1.254
You should see a box prompting you for your username and password.
- The Default ZyXEL Prestige 645 Router Username is: Admin
- The Default ZyXEL Prestige 645 Router Password is: 1234
Enter your username and password, and then click the Login button to log in to your ZyXEL Prestige645 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 Prestige645 router username and password, use our How to Reset a Router Password guide to set your ZyXEL Prestige645 router back to its factory settings.
Click the Advanced Setup link near the left of the page.
You should now see a new menu. In this new menu, click NAT Applications.
Here are the ports to forward for Xbox Live:
TCP Ports: 3074 UDP Ports: 3074
If you are looking for the ports for a different application you can find it by either:
You can leave Application set to Manual.
In the Port Number box put the port to forward.
Enter the IP address that you are forwarding ports to in the Server IP Address box. This is either the IP address of a computer or the IP address of another device on your network.
When you're finished, click Apply near the bottom of the screen to save your changes.
Test if Your Ports are Open
Now that you have forwarded ports on the ZyXEL Prestige645 you should test to see if your ports are forwarded correctly.
ZyXEL Prestige645 Router Screenshots
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