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Prestige 652 ADSL Security Router
16.3 Configuring a Filter Rule
To configure a filter rule, type its number in Menu 21.1.1 – Filter Rules Summary and press [ENTER] to
open menu 21.1.1.1 for the rule.
There are two types of filter rules: TCP/IP and Generic. Depending on the type of rule, the parameters for
each type will be different. Use [SPACE BAR] to select the type of rule that you want 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, for instance, 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.
16.3.1 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, for example, UDP and TCP headers.
To configure TCP/IP rules, select TCP/IP Filter Rule in the Filter Type field and press [ENTER] to open
Menu 21.1.7.1 – TCP/IP Filter Rule, as shown next.
Press Space Bar to Toggle.
The following table describes how to configure your TCP/IP filter rule.
16-8
Menu 21.1.7.1 - TCP/IP Filter Rule
Filter #: 4,1
Filter Type= TCP/IP Filter Rule
Active= Yes
IP Protocol= 6
Destination: IP Addr= 0.0.0.0
Source: IP Addr= 0.0.0.0
TCP Estab= No
More= No
Action Matched= Check Next Rule
Action Not Matched= Check Next Rule
Press ENTER to Confirm or ESC to Cancel:
Figure 16-10 Menu 21.1.7.1 — TCP/IP Filter Rule
IP Source Route= No
IP Mask= 0.0.0.0
Port #= 137
Port # Comp= Equal
IP Mask= 0.0.0.0
Port #= 0
Port # Comp= None
Log= None
Filter Configuration
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