Allied Telesis AT-WA7500, AT-WA7501 manual Configuring 802.11a Radio Inbound Filters, ‘Any’

Chapter 4: Configuring the Radios

Configuring

802.11a Radio

Inbound Filters

Table 39. 802.11a Radio Advanced Parameter Descriptions (Continued)

Parameter	Description
Disallow SSID	Determines if end devices that have their SSID
(Network Name) of	(Network Name) set to ANY or are left blank can
‘ANY’	associate with this access point.
(Master radio only)	Clear this check box to allow these end devices
	to associate with this access point. Although this
	setting is 802.11 compliant, it is not very secure.
	Check this check box to prevent end devices with
	an SSID of ANY or are left blank from associating
	with this access point.
Beacon Period	Specifies how often the access point sends out a
	beacon frame. This rate is in TU. (A TU is 1024
	ms and is often considered to be equivalent to 1
	ms.)
DTIM Period	Specifies the number of beacon periods to skip
	before including a DTIM (delivery traffic indication
	message) in a beacon frame.
	Setting a higher DTIM period may conserve
	battery life in an end device, but it may increase
	response time.

When configuring a master radio, you can filter different types of wireless traffic that it may receive. You may want to use this feature by itself or with an access control list (ACL) to help secure your network. If you clear all the check boxes, the radio cannot communicate with any other radios.

You check the Allow IAPP check box so the access point can communicate with other access points and participate in the spanning tree.

You can use this feature to form a secure wireless hop. Clear all check boxes, except for the Allow IAPP check box.

Or you may want to use this feature in a terminal emulation environment when you know the end devices are sending only UDP Plus or Wireless Transport Protocol (WTP) frames. Check the Allow UDP Plus check box or the Allow Wireless Transport Protocol check box and clear all other check boxes (except the Allow IAPP check box). The access point master radio will only accept the UDP Plus or WTP frames and discard all other frames, which can make a more secure network.

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