Dr. Morena is a tool to confirm the configuration rules of a Firewall.
The configuration of a Firewall is done by combining several configuration rules.
Since this may lead to complex configurations, it is sometimes difficult to confirm whether the set of rules is tight enough (or maybe too tight).
The following tool has been developed to assist in checking these firewall rules.
Dr. Morena requires a computer that has at least two-network interfaces. Each network interface is connected to each of the network interfaces on the firewall. During the test, packets are sent where the source IP address and the destination IP address are forged, and are sent to the firewall from one network interface, in an attempt to pass through the firewall and reach the other network interface. If the packet reaches the other network interface, the firewall 'allow' rule is confirmed.
This powerful tool can assist in checking the firewall rules regardless of how the firewall was configured.