The Smoothwall Firewall logs report shows a list of the network traffic connections passing through the Smoothwall Firewall. If there isn't an inbound and an outbound interface, the traffic has been directed to the Smoothwall Firewall, which means it was blocked by the Smoothwall Firewall. If there is an inbound and outbound interface, the Smoothwall Firewall has transferred the traffic out of another interface.
The amount of Smoothwall Firewall log data retained by the Smoothwall Firewall depends on the log retention settings in the Datastore settings.