User's Manual

Chapter 11 Filter configuration 119

BCM50a Integrated Router Configuration — Advanced

Figure 54 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.

Start

Fetch First

Filter Set

Fetch First

Filter Rule

Active?

Execute

Filter Rule

Fetch Next

Filter Rule

Next filter

Rule

Available?

Fetch Next

Filter Set

Next Filter Set

Available?

Accept PacketDrop Packet

Yes

Packet into

filter

Filter Set

Forward

Drop

Check

Rule