Allied Telesis AT-WA7501, AT-WA7500 manual Example

AT-WA7500 and AT-WA7501 Installation and User’s Guide

Table 21. Filter Expressions Parameter Descriptions (Continued)

Parameter	Explanation
Mask	Applies a data pattern to the frame. If the data
	pattern in the mask matches the frame, then the
	specific action is performed. The mask indicates
	the bits that are significant at the specified offset.
	A bit is significant if a bit in the mask is set to one.
	If this field is empty, the length of the field is
	determined by the longest value in the Filter
	Values menu for the specified value ID.
	The mask values are entered in 0 to 8
	hexadecimal pairs.
Op (Operation)	Performs a logical operation when a data pattern
	matches a value in the Filter Values menu to
	determine if the specified action should be taken.
	Valid operations include: EQ (equal), NE (not
	equal), GT (greater than), LT (less than or equal)
Value ID	Represents a value in the Filter Values menu.
	The bytes after the frame offset are compared to
	the data pattern indicated by the value. Value ID
	can be from 0 to 255 and must match one or
	more value IDs in the Filter Values menu.
Action	Sets the action to Pass, Drop, or And. If you set
	the action to And, the filter expression with the
	next highest sequence is applied.

Example 1

This example shows you how to use Ethernet filters to filter all traffic that passes through the access point to the wireless network except for traffic for specified MAC addresses. These filters do not prevent wireless traffic from reaching the Ethernet network. For this example, set these filter values.

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