Mark,
You will have to enable logging and then the denyed packets will be shown in /var/log/messages
To enable logging: (from FAQ)
How 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
Enjoy!
Cyrus Bharda