Filter
Top Products
P100IH ISDN Router
9-2 Filter Configuration
Start
Packet
into Filter
Accept PacketDrop 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 9-1 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.