ZyXEL Communications P-791R V2 - V3.40 Guia do Utilizador descarregar pdf (Página 141)

Prestige 791R G.SHDSL Router

Filter Configuration 12-9

FIELD DESCRIPTION

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 12-2 Rule Abbreviations Used

FILTER TYPE DESCRIPTION

Pr Protocol

SA Source Address

SP Source Port Number

DA Destination Address

DP Destination Port Number

GEN

Off Offset

Len Length

12.3 Filter Rule Configuration

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.

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.

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ZyXEL Communications P-791R V2 - V3.40 Guia do Utilizador Página 141