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Figure 7-2, Filter rule process -3, Filter set – ZyXEL Communications Prestige 310 User Manual

Page 81: Execute filter rule

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Prestige 310 Broadband Sharing Gateway

Filters

7-3

Start

Packet

into Filter

Accept Packet

Drop Packet

Fetch Next

Filter Set

Next Filter Set

Available?

Yes

Filter Set

Fetch First
Filter Rule

Execute Filter

Rule

Next Filter Rule

Available?

Fetch Next

Filter Rule

No

Fetch First

Filter Set

Yes

Check Next Rule

Drop

No

Forward

Figure 7-2

Filter Rule Process

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