ZyXEL Communications P-334W User Manual

Page of 496
Prestige 334W User’s Guide 
30-10  
 
Filter Configuration 
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
 
Figure 30-7 Executing an IP Filter