ZyXEL Communications ZyXEL ExpWave 240B - Manual (Page 59)

ExpWave 240B Secure Outdoor Ethernet Radio Link
Filter Setup 9-5
Field Description Option
Matched will be N/A.
Log Select the logging option from the following:
None – No packets will be logged.
Action Matched - Only packets that match the rule
parameters will be logged.
Action Not Matched - Only packets that do not match the
rule parameters will be logged.
Both – All packets will be logged.
None
Action Matched
Action Not Matched
Both
Action Matched Select the action for a matching packet. Check Next Rule
Forward
Drop
Action Not Matched Select the action for a packet not matching the rule. Check Next Rule
Forward
Drop
Once you have completed filling in Menu 21.1.1 - TCP/IP Filter Rule, press [Enter] at the message [Press
Enter to Confirm] to save your configuration, or press [Esc] to cancel. This data will now be displayed on
Menu 21.1 - Filter Rules Summary.
The next diagram illustrates the logic flow of an IP filter.
Packet
into IP Filter
Matched
Matched
Yes
Action Matched
Action Not Matched
More?
No
Filter Active?
Check
IP Protocol
Drop
Drop Packet Accept Packet
Drop Forward Check Next Rule
Check Next Rule
Check Next Rule
Forward
Not Matched
Yes
No
Check Src
IP Addr
Apply SrcAddrMask
to Src Addr
Matched
Check Dest
IP Addr
Apply DestAddrMask
to Dest Addr
Not Matched
Not Matched
Check Src &
Dest Port
Matched
Not Matched