User's Manual

Prestige 645 ADSL Internet Access Router
Filter Configuration 8-9
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Abbreviations Used If Filter Type Is IPX
Table 8-3 Abbreviations Used If Filter Type Is IPX
ABBREVIATION DESCRIPTION
PT IPX Packet Type
SS Source Socket
DS Destination Socket
! If the filter type is GEN (generic), the abbreviations listed in the following table will be used.
Table 8-4 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.
8.3 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 three types of filter rules: TCP/IP, IPX 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.
To speed up filtering, all rules in a filter set must be of the same class, i.e., protocol filters or generic filters.
The class of a filter set is determined by the first rule that you create. When applying the filter sets to a
port, separate menu fields are provided for protocol and device filter sets. If you include a protocol filter set
in a device filters field or vice versa, the Prestige will warn you and will not allow you to save.
8.3.1 TCP/IP Filter Rule
This section shows you how to configure a TCP/IP filter rule. TCP/IP rules allow you to base the rule on
the fields in the IP and the upper layer protocol, e.g., UDP and TCP, headers.
To configure a TCP/IP rule, select TCP/IP Filter Rule from the Filter Type field and press [ENTER] to
open Menu 21.1.1 - TCP/IP Filter Rule, as shown next.