ZyXEL Communications 480 manual Filter Set

Prestige 480 Dual BRI ISDN Router

Fetch Next

Filter Set

Yes

Filter Set

Yes	Fetch Next
	Filter Rule

Start

Packet into Filter

Fetch First Filter Set

Fetch First Filter Rule

Next Filter Set	No	Next Filter Rule
Available?		Available?

Execute Filter

Rule

Check Next Rule

No

Drop

Forward

Drop Packet Accept Packet

Figure 9-1 Filter Rule Process

9-2 Filter Configuration