WS 2000 Wireless Switch System Reference Guide9-60
Similarly, Leo restricts access from the marketing subnet to the administration subnet.
Leo would also like to restrict traffic from all subnets to the WAN to just HTTP, SMTP, and POP protocols. He selects the cell
in the matrix defined by From Eng-SN on the left and To WAN above. Then he uses the Rules pull down menu to select
Deny and specifies that HTTP, SMTP and POP are the exceptions.