Intermec MobileLAN access WA21 System Manual page 92

Chapter 3 — Configuring the Ethernet Network
78
For this example, set these filter expressions.
Example 1 –Filter Expressions
Parameter Value
ExprSeq 10
Offset 0
Mask ff ff ff
ff ff ff
Op EQ
Value ID 1
Action Pass
You must enter a filter expression for each Value ID in the Filter Values
menu. In this example, only the ExprSeq value and the Value ID value
change.
Explanation
The order that you want the expressions executed. You
must have an expression for each Value ID that is listed in
the Filter Values menu.
Since the filter is applied to the destination address, which
is the first value in the frame, the offset is 0.
Compares the entire 6-byte destination address for an
exact match.
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
multicast.)
This filter expression applies to value ID 1 from the Filter
Values menu.
If this filter expression is true, continue to the next
expression.
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