2 configuring a filter rule – ZyXEL Communications Intelligent Broadband Sharing Gateway P-324 User Manual

Page 164

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13-6 Filter

Configuration

Table 13-1 Abbreviations Used in the Filter Rules Summary Menu

FIELD DESCRIPTION

m Action

Matched.

“F” means to forward the packet immediately and skip checking the remaining rules.
“D” means to drop the packet.
“N“ means to check the next rule.

n

Action Not Matched.
“F” means to forward the packet immediately and skip checking the remaining rules.
“D” means to drop the packet.
“N” means to check the next rule.

The protocol dependent filter rules abbreviation are listed as follows:

Table 13-2 Rule Abbreviations Used

ABBREVIATION DESCRIPTION

IP

Pr Protocol

SA Source

Address

SP Source Port number

DA Destination

Address

DP Destination Port number

GEN

Off Offset

Len Length

Refer to the next section for information on configuring the filter rules.

13.2.2 Configuring a Filter Rule

To configure a filter rule, type its number in Menu 21.1 - Filter Rules Summary and press [ENTER] to
open menu 21.1.1 for the rule.

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,

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