Filter
Top Products
12-10
C
HAPTER
12: C
ONFIGURING
F
ILTERS
*whose length is 2x Length field: two mask numbers for each byte)
** whose length is not greater than 2x Length field.
■
Condition Summary
This screen shows the filter conditions that have been created so far. It
allows you to select any undefined condition to add, or to select any
defined condition to delete (You can not modify a condition - you
must delete the condition then add a new one to make changes). You
do not have to add filters in consecutive order (that is, you can skip
condition numbers.) And you can delete conditions from the middle.
The conditions are used in the filter in order of smallest condition
number to greatest condition number and unused condition numbers
are simply ignored.
■
The Add button returns you to the appropriate filter condition
screen so you can define the next condition.
■
The Delete button returns you to this screen unless you have just
deleted the last condition, in which case you go to the
Delete Filter/Add Condition screen.
■
When you are finished defining conditions, press the Save Filter
button. This completes the filter and takes you to the Filter
Summary screen.
Destination Socket
Source Socket
is Equal to
is Not Equal to
is Greater Than
is Greater Than or Equal to
is Less Than
is Less Than or Equal to
_____
(1 - FFFF)
Destination Port
Source Port
is Equal to
is Not Equal to
is Greater Than
is Greater Than or Equal to
is Less Than
is Less Than or Equal to
_____
(1 - 65536)
Generic Byte
Filter
Origin: IP Header / IP Data
Offset ____ (0- 1514 bytes)
Length ____ (1-48 bytes)
Masked With ___ (0's or F's*)
is equal to
_____
(hex value**)
840ug.book Page 10 Friday, July 7, 2000 2:23 PM