3Com WL-537 User Manual page 69

Firewall 73
Status:Choose to enable or disable the selected policy.
PCs:Click on the Edit List button to specify the network clients. Policy
only applies to the PCs that are in the list.
You can specify each client by its MAC Addressor IP Address. You can also
specify a group of clients by entering their IP Address Range. Once you
have specified all the clients, click Save.
Access Restrictions: Select to Deny or Allow the specified clients to
access the Internet by Day and Time.
Blocked Application Port
Select which application port to block, if any, when the specified PCs
have Internet access.
For your convenience, 11 preset applications and their ports are listed. If
you have a Custom application, select Custom and manually enter its
port number.