ZyXEL Communications 1001H User Manual
P100IH ISDN Router
9-8
Filter Configuration
Figure 9-6 Protocol and Device Filter Sets
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.
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.
9.3.2
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.
the fields in the IP and the upper layer protocol, e.g., UDP and TCP, headers.
To configure a TCP/IP rules, select TCP/IP Filter Rule from the Filter Type field and press [Enter] to open
Menu 21.1.1 - TCP/IP Filter Rule
Menu 21.1.1 - TCP/IP Filter Rule
, as shown next.