3 configuring a filter rule – ZyXEL Communications 480 User Manual
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Prestige 480 ISDN Router
Filter Configuration
7-5
Table 7-2 Abbreviations used if Filter Type is IP
Abbreviation
Description
Pr
Protocol
SA
Source Address
SP
Source Port number
DA
Destination Address
DP
Destination Port number
l If the filter type is GEN (generic), the following abbreviations listed in the following table will
be used.
Table 7-3 Abbreviations used if Filter Type is GEN
Abbreviation
Description
Off
Offset
Len
Length
Refer to the next section for information on configuring the filter rules.
7.3 Configuring a Filter Rule
To configure a filter rule, enter its number in Menu 21.1 - Filter Rules Summary and press Enter
to open Menu 21.1.1 for the rule.
There are two types of filter rules: TCP/IP and Generic. Depending on the type of rule, the
parameters below the type will be different. Use the space bar to select the type of rule that you
wish to create in the Filter Type field and press [ENTER] to open the respective menu.