ZyXEL Communications Prestige 642, User Manual

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Prestige 642 ADSL Modem
5-6 SNMP Configuration
ANDing) to the data portion before comparing the result against the Value to determine a match. The Mask
and Value are specified in hexadecimal numbers. Note that it takes two hexadecimal digits to represent a
byte, so if the length is 4, the value in either field will take 8 digits, e.g.,
FFFFFFFF
.
To configure a generic rule, select Generic Filter Rule in the Filter Type field and press Enter to open Menu
21.1.2 - Device Filter Rule , as shown next.
Figure 5-4 Menu 21.1.2 - Generic Filter Rule
The following table describes the fields in the Generic Filter Rule Menu.
Table 5-3 Generic Filter Rule Menu Fields
Field Description Option
Filter # This is the filter set, filter rule co-ordinates, i.e., 2,3 refers to the second
filter set and the third filter rule of that set.
Active
Select Yes to turn on the filter rule. Yes/No
Offset Enter the starting byte of the data portion in the packet that you wish to
compare. The range for this field is from 0 to 255. Default = 0
Length Enter the byte count of the data portion in the packet that you wish to
compare. The range for this field is 0 to 8. Default = 0
Mask Enter the mask (in Hexadecimal) to apply to the data portion before
comparison.
Value Enter the value (in Hexadecimal) to compare with the data portion.
More If yes, a matching packet is passed to the next filter rule before an action is
taken; else the packet is disposed of according to the action fields.
If More is Yes , then Action Matched and Action Not Matched will be N/A .
Yes / N/A
Log Select the logging option from the following:
Menu 21.1.2 - Generic Filter Rule
Filter #: 1,1
Active= No
Offset= 0
Length= 0
Mask= N/A
Value= N/A
More= No Log= None
Action Matched= Check Next Rule
Action Not Matched= Check Next Rule
Press ENTER to Confirm or ESC to Cancel: