Advanced MikroTik RouterOS Firewall Custom Rules And Filtering

If you're considering setting up a network, you'll need a firewall to keep your system secure. For most businesses, Mikrotik Router OS is a great option for creating a firewall. Here we'll go over some basic concepts and the steps you'll need to take to create a firewall using Mikrotik Router OS.

Firewall Podstawy [konfiguracja Mikrotik Router OS]

Getting Started

The first step in creating a firewall is to access Mikrotik Router OS. You can access it by typing your IP address into your browser. Once you've logged in, you'll want to create a new firewall rule. To do this, navigate to the Firewall option on the left side of the main menu and click on it.

Next, you'll need to go to the Firewall Rules tab, where you'll see a list of your current firewall rules. To create a new rule, click the plus sign in the upper right-hand corner of the page.

Configuring Your Firewall

Now that you've created a new rule, you'll need to configure it. There are several key settings that you'll need to configure:

General Settings

The first section you'll need to configure is the General Settings section. Here, you'll choose the action you want to take, such as Accept or Drop. You'll also need to choose the chain, which can be Input, Forward, or Output. Finally, you'll need to choose the protocol you want to use, such as TCP or UDP.

Source & Destination Settings

In the Source & Destination Settings section, you'll set the IP addresses and port numbers. You can choose to block or allow certain IP addresses. You can also choose to allow or block certain ports.

Advanced Settings

In the Advanced Settings section, you'll be able to choose other settings such as the logging option and layer 7 protocol. If you're not sure what any of these settings mean, you can leave them set to their default values.

Read also

Testing Your Firewall

Once you've configured your firewall, it's important to test it to ensure that it's working correctly. To do this, you can try accessing a site or service that should be blocked by your firewall, such as a site that contains known malware. If your firewall is working correctly, you shouldn't be able to access the site.

Conclusion

Mikrotik Router OS is a great option for creating a firewall. By following these steps and configuring your firewall correctly, you can ensure that your system is secure and protected from external threats. If you're having trouble configuring your firewall, don't hesitate to reach out to a professional for help.