Allied Telesis AT-WA7500, AT-WA7501 manual Parameter Value Explanation

Chapter 3: Configuring the Ethernet Network

Set the second filter expression as shown below.

Table 26. Example 2 – Second Filter Expression

Parameter	Value	Explanation
ExprSeq	2	The second expression that is executed.
Offset	12	Checks for the DIX IP frame type, which
		starts 12 bytes from the destination
		address.
Mask	ff ff	Checks the 2-byte DIX IP frame type for
		an exact match.
Op	EQ	Compares the value after the offset and
		mask are applied to the value of the Value
		ID from the Filter Values menu to see if
		they are equal. (If the value at the offset
		equals the specified value on the Filter
		Values menu, the frame is DIX IP.)
Value ID	1	This filter expression applies to value ID 1
		from the Filter Values menu.
Action	And	If this filter expression is true, continue to
		the next expression.

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