http://www.e-smith.org/faq.php3#6q8How can I log/view all denied packets filtered by the firewall component of my SME Server? 
By default, logging of denied packets is turned off. There are three levels of denied packet logging: 
all - every blocked packet is logged 
most - all blocked packets except SMB and RIP 
none - (default) no blocked packets are logged 
To change the level of logging: 
/sbin/e-smith/db configuration setprop masq Logging most 
/sbin/e-smith/signal-event remoteaccess-update 
Denied packets will now be logged to the system log. (/var/log/messages) 
Conversely, to turn logging off: 
/sbin/e-smith/db configuration setprop masq Logging none 
/sbin/e-smith/signal-event remoteaccess-update