Before enabling a rule, test the filters or actions to make sure they work as intended.
At the bottom of the action or filter setup dialog, click the Test Setup button.
The Test message dialog displays the values that are passed to the filter or action when you perform the test.
If necessary, change these inputs to match the values you are filtering for.
Click the Test button.
A green check mark next to the Test button indicates that the filter or action passed the test.
You can also test filters and actions using Kiwi SyslogGen, a free utility that generates and sends syslog messages. You can specify message properties such as priority, message text, and sending IP address.