Figure 62 Filter Rule Process; Filter Set - Nortel 222 User Manual

Figure 62 Filter rule process

Fetch Next

Filter Set

Yes
Next Filter Set
Available?
No
Drop Packet
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.
Nortel Business Secure Router 222 Configuration — Advanced
Filter Set
Fetch Next
Filter Rule
Yes
Next filter
No Rule
Available?
Check
Next
Rule
Chapter 11 Filter configuration 137
Start
Packet into
filter
Fetch First
Filter Set
Fetch First
Filter Rule
No Active?
Yes
Execute
Filter Rule
Forward
Drop
Accept Packet