Intermec MobileLAN access WA21 System Manual page 95

MobileLAN access System Manual
Set the second filter expression as shown below.
Example 2 – Second Filter Expression
Parameter Value
ExprSeq 2
Offset 12
Mask ff ff
Op EQ
Value ID 1
Action And
Chapter 3 — Configuring the Ethernet Network
Explanation
The second expression that is executed.
Checks for the DIX IP frame type, which starts 12 bytes
from the destination address.
Checks the 2-byte DIX IP frame type 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
DIX IP.)
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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