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Advanced Configuration
•
Enable IP/ARP Filtering: Place a check mark in the box provided to allow IP/ARP filtering based on the IP/ARP
Filtering Address and IP Mask. Leave the box unchecked to prevent filtering. If enabled, you should also configure
the IP/ARP Filtering Address and IP/ARP IP Mask.
–
IP/ARP Filtering Address: Enter the Network filtering IP Address.
–
IP/ARP IP Mask: Enter the Network Mask IP Address.
The following protocols are listed in the Advanced Filter Table:
•
Deny IPX RIP
•
Deny IPX SAP
•
Deny IPX LSP
•
Deny IP Broadcasts
•
Deny IP Multicasts
The AP-600 can filter these protocols in the wireless-to-Ethernet direction, the Ethernet-to-wireless direction, or in both
directions. Click Edit and use the Status field to Enable or Disable the filter.
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-600. A user specifies a Protocol Name, Port Number, Port Type (TCP, UDP, or TCP/UDP),
and filtering interfaces (Wireless only, Ethernet only, all interfaces, or no interfaces) in order to block access to
services, such as Telnet and FTP, and traffic, such as NETBIOS and HTTP.
For example, an AP-600 with the following configuration would discard frames received on its Wireless radio with a
UDP destination port number of 137, effectively blocking NETBIOS Name Service packets.
Protocol Type
Destination
(TCP/UDP)
Port Number
UDP
137
Adding TCP/UDP Port Filters
1. Place a check mark in the box labeled Enable TCP/UDP Port Filtering.
2. Click Add under the TCP/UDP Port Filter Table heading.
Figure 4-13 Adding a New TCP/UDP Port Filter Entry
3. In the TCP/UDP Port Filter Table
4. Set the destination Port Number (a value between 0 and 65535) to filter. See the IANA Web site at
http://www.iana.org/assignments/port-numbers
Protocol Name
Interface
NETBIOS
Wireless
Name Service
enter the Protocol Names to filter.
,
for a list of assigned port numbers and their descriptions.
Status
(Enable/Disable)
Enable
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