ZyXEL Communications 792H manual Execute Filter Rule, Filter Rule Process

Prestige 791R G.SHDSL Router

Filter Set

Start

Packet intoFilter

Fetch First Filter Set

Fetch Next

Filter Set

Yes

Next Filter Set

Available?

No

Drop Packet

Fetch Next

Filter Rule

Yes

Next filter

NoRule Available?

Check

Next

Rule

Fetch First

Filter Rule

Yes

NoActive?

Yes

Execute

Filter Rule

Forward

Drop

Accept Packet

Figure 28-2 Filter Rule Process

You can apply up to four filter sets to a particular port to block various types of packets. Because each filter set can have up to six rules, you can have a maximum of 24 rules active for a single port.

Filter Configuration 28-3