Proxim AP-2000 manual Advanced, Adding TCP/UDP Port Filters

Performing Advanced Configuration

•Wired Mask: FF:FF:FF:FF:FF:FF

•Wireless MAC Address: 00:00:00:00:00:00

•Wireless Mask: 00:00:00:00:00:00

Result: The Access Point does not forward any packets that have a destination address of 01:00:5E:00:32:4B to the wireless network.

Advanced

You can configure the following advanced filtering options:

•Enable Proxy ARP: Place a check mark in the box provided to allow the Access Point to respond to Address Resolution Protocol (ARP) requests for wireless clients. When enabled, the AP answers ARP requests for wireless stations without actually forwarding them to the wireless network. If disabled, the Access Point will bridge ARP requests for wireless clients to the wireless LAN.

•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 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. A user specifies a Protocol Name, Port Number, Port Type (TCP, UDP, or TCP/UDP), and filtering interfaces ( Ethernet, Wireless A only, Wireless A and Ethernet, Wireless B only, Wireless B and Ethernet, 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.

Protocol Type	Destination	Protocol Name	Interface	Status
(TCP/UDP)	Port Number			(Enable/Disable)
UDP	137	NETBIOS	Ethernet	Enable
		Name Service

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.

3.In the TCP/UDP Port Filter Table, enter the Protocol Names to filter.

4.Set the destination Port Number (a value between 1 and 65535) to filter. See the IANA Web site at http://www.iana.org/assignments/port-numbersfor a list of assigned port numbers and their descriptions.

5.Set the Port Type for the protocol: TCP, UDP, or both (TCP/UDP).

6.Set the Interface to:

•Ethernet

•Wireless Slot A

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