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Figure 4-36 Static MAC Filter Table - Edit Entries
TCP/UDP Port
Port-based filtering enables you to control wireless user access to network services by selectively blocking TCP/UDP
protocols through the AP. A user specifies a Protocol Name, Port Number, Port Type (TCP, UDP, or TCP/UDP), and
filtering interfaces (Wireless radio A or B only, Ethernet only, a combination of Wireless radio A or B and Ethernet, or all
interfaces) in order to block access to services, such as Telnet and FTP, and traffic, such as NETBIOS and HTTP.
For example, an AP with the following configuration would discard frames received on its Ethernet interface with a UDP
destination port number of 137, effectively blocking NETBIOS Name Service packets.
Adding TCP/UDP Port Filters
1. Place a check mark in the box labeled Enable TCP/UDP Port Filtering.
Protocol Type
(TCP/UDP)
Destination Port
Number
Protocol Name Interface Status (Enable/Disable)
UDP 137 NETBIOS Name
Service
Ethernet Enable
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