How To Set Up A Router With A Firewall?

(Last Updated On: August 13, 2020)

If you are a broadband internet user, the best way to protect your network is by using a firewall. The hardware firewall will save your computer from malware and other harmful threats like theft of data. It has to be installed within the modem and computer, and it is often included as a significant part of the router. The hardware router will control both incoming and outgoing traffic. Most of the wireless routers that we have in the market today don’t have a firewall equipped inside. Firewall can configure when you set it correctly, and in this buying guide, we will discuss how to set up a router with a firewall.

Check If The Router Has A Built-in Firewall

The first thing is that you need to make sure the router has a built-in firewall. For this, you have to open the window of the browser and log into the router’s administrative console. Typing the router’s IP address will help you check all the details regarding the security of the firewall. When you log into your router’s control and see a page where a security tab is labeled, it will mean the router has a built-in firewall.

Enable & Configure The Router With A Firewall

You can enable and configure the router with a firewall by following these simple steps.

  • Access the configuring page of the router
  • Locate an entry that is labeled with a firewall, SPI firewall and something similar to all of them
  • Select enable in the settings section
  • You can save, and then select apply
  • Once you have selected, apply your router will start to work
  • The router will reboot to complete and apply the settings
  • Configure your firewall according to your requirements and adding firewall rules
  • In the end, access the control list that can meet the needs of security and connectivity


Essential Ports On A Network Or Computer

The router configurations are different for every network, and you may have to check the page of manufactures before applying one. However, there is an option to use or block any port, and you can choose to look for the port forwarding option to block unauthorized access. You have to be careful as you will not like to get the internet connection blocked. The following ports need to be open, so your internet connection can keep working too.


  • PORT NUMBER 80 will allow Internet Access (HTTP)
  • Port Number 443 will allow Secure Internet Access (HTTPS)
  • Port Number 25 is the port with which the user can access different emails (SMTP)


If you keep these ports open, it will be sufficient for browsing as well as accessing emails. You may require some additional ports depending on the software needs. If that is the case, the software itself will take care of all the compatible ports. It is better not to use port 80 as it may create issues while connecting the router with the firewall.



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