Bay Technical Associates RM356 Manual De Usuario
Reference Guide for the Model RM356 Modem Router
Filter Configuration
8-7
Generic Filter Rule
This section provides information about configuring the protocol-independent parameters for
a generic filter rule for your router.
a generic filter rule for your router.
lists the fields in the menu. When you complete
Menu 21.1.1 - Generic Filter Rule, press [Enter] at the Press ENTER to Confirm... prompt to
confirm your selections. Press [Esc] at any time to cancel your selections. The data entered is
displayed on Menu 21.1 - Filter Rules Summary.
confirm your selections. Press [Esc] at any time to cancel your selections. The data entered is
displayed on Menu 21.1 - Filter Rules Summary.
Table 8-5.
Generic Filter Rule Menu Fields
Field
Description
Active
In this field, you can make the filter rule active (Yes) or inactive (No).
Offset
Offset refers to the value of the byte that you want to use as your starting offset. That is,
in the data packet, at what point do you want to begin the comparison. The range for
this field is from 0 to 255. Default = 0.
in the data packet, at what point do you want to begin the comparison. The range for
this field is from 0 to 255. Default = 0.
Length
This field refers to the length (in bytes) of the data in the packet that the router should
use for comparison and masking. The starting point of this data is determined by Offset.
The range for this field is 0 to 8. Default = 0.
use for comparison and masking. The starting point of this data is determined by Offset.
The range for this field is 0 to 8. Default = 0.
Mask
In this field, specify (in hexadecimal) the value that the router should logically qualify
and the data in the packet. Because length is given in bytes, enter a hexadecimal
number that is twice the specified length for numbers in this field. For example, if length
is 4, a valid Mask entry must have 8 hexadecimal numbers (1155ABF8).
and the data in the packet. Because length is given in bytes, enter a hexadecimal
number that is twice the specified length for numbers in this field. For example, if length
is 4, a valid Mask entry must have 8 hexadecimal numbers (1155ABF8).
Value
In this field, specify (in hexadecimal) the value that the router should use to compare
with the masked packet. The value should align with Offset. Because length is given in
bytes, you need to enter twice the length in hexadecimal numbers for this field. For
example, if length is 4, a valid Value entry must have 8 hexadecimal numbers
(1155ABF8). If the result from the masked packet matches Value, then the packet is
considered matched.
with the masked packet. The value should align with Offset. Because length is given in
bytes, you need to enter twice the length in hexadecimal numbers for this field. For
example, if length is 4, a valid Value entry must have 8 hexadecimal numbers
(1155ABF8). If the result from the masked packet matches Value, then the packet is
considered matched.
More
In this field, you can determine whether to pass the packet through the next filter rule
before an action is taken. There are two options for this field:
• Yes
• No (Default)
If Yes is selected for this field, Action Matched and Action Not Matched will be N/A.
before an action is taken. There are two options for this field:
• Yes
• No (Default)
If Yes is selected for this field, Action Matched and Action Not Matched will be N/A.