In the Advanced tab, it's possible to set the limits of the packages per second in a connection.
IPv4 - Side Tabs - Advanced
Bellow is a description of the fields on the Advanced form:
IPv4 – Advanced
DoS Protection: With the DoS Protection box checked  it's possible to limit the maximum quantity of packages per second in the Firewall, avoiding distributed attacks or traffic anomalies caused by possible malwares in the network.
- Packet Rate: The Packet Rate option sets up the Firewall in order to limit the connections to a maximum amount of packages per second.
- Burst Rate: The Burst Rate option sets up the Firewall initially in order to allow a maximum quantity of packages per second without validating the Packet Rate to make the traffic control flexible in ocasional traffic peaks.
- TCP MSS [ ]: Allows the definition of a value that specifies the major quantity of data, in bytes, that a computer or communication device can receive in a single TCP segment.
This concludes the analysis of each panel. Next, we will analyze some examples of creating IPv4 policies.