What is the function of the firewall in MikroTik RouterOS?

The function of the firewall in MikroTik RouterOS primarily revolves around packet filtering and access control. A firewall is designed to monitor and control incoming and outgoing network traffic based on predetermined security rules. This means it can allow or deny packets based on specific criteria, such as IP addresses, ports, or protocols. By implementing these rules, the firewall establishes a security perimeter around the network, protecting it from unauthorized access and various types of attacks.

In MikroTik RouterOS, the firewall can also assist in traffic management by directing packets to appropriate processing paths, logging activities for auditing purposes, and providing a layer of security against threats such as denial of service attacks. The ability to define rules with precision allows network administrators to tailor the security measures to the specific needs of their environment, thus enhancing the overall security framework of the network without compromising performance.