Enable and Configure Your Router’s Built-In Firewall
A firewall is a potent defense against hackers and cybercriminals. Surprisingly, many users have a robust firewall available and don’t realize it. Most wireless internet routers contain a built-in, hardware-based firewall, and unless it’s been activated, it’s lying dormant. Routers vary, but the general approach for enabling and configuring your built-in firewall is as follows:
Check Your Router for a Built-In Firewall
To find out if your router has a built-in firewall, open a browser window and log in to your router’s administrative console by typing in the router’s IP address. Your router is likely to have what is known as a non-routable internal IP address, such as 192.168.1.1 or 10.0.0.1. All routers offer basic firewall protection, but many have more sophisticated firewall functionality. Below are standard admin interface addresses used by some common wireless router manufacturers. Consult your specific router’s manual for the correct address.
Linksys: 192.168.1.1 or 192.168.0.1DLink: 192.168.0.1 or 10.0.0.1ASUS: 192.168.1.1Buffalo: 192.168.11.1Netgear: 192.168.0.1 or 192.168.0.227
After you log in to your router’s administrative console, look for a configuration page labeled Security or Firewall. This indicates that your router has a built-in firewall as one of its features.
About Firewalls
A firewall is the digital equivalent of a traffic cop that polices your network boundaries. It can be used to prevent traffic from entering or leaving your network. There are several different types of firewalls, both hardware and software-based. Operating systems often feature a software-based firewall, while the firewall in your router is hardware-based. Firewalls help prevent internet-borne, port-based attacks. Firewalls can also stop an infected computer inside your network from attacking other computers by preventing malicious traffic from leaving your network.
