ZyXEL Communications Wireless Gateway Series 사용자 설명서

ZyAIR Wireless Gateway Series User’s Guide 

Filter and Firewall Configuration                                                                                                 24-15  

After you have created the filter set, you must apply it. 

Step 1.  Enter 11 in the main menu to display menu 11 and type the remote node number to edit. 

Step 2.  Go to the Edit Filter Sets field, press [SPACE BAR] to choose Yes and press [ENTER]. 

Step 3.  This brings you to menu 11.5. Apply the example filter set  (for example, filter set 3) in this 

menu as shown in the next section. 

This section shows you where to apply the filter(s) after you design it (them). Sets of factory default filter 
rules have been configured in menu 21 (but have not been applied) to filter traffic. 

Input Filter Sets: 

Apply filters for incoming traffic. You may apply protocol or device filter rules. 
See earlier in this chapter for information on filters.  

Output Filter Sets: 

Apply filters for traffic leaving the ZyAIR. You may apply filter rules for protocol or 
device filters. See earlier in this section for information on types of filters. 

Call Filter Sets: 

Apply filters to decide if a packet should be allowed to trigger a call. 

Menu 21.1.3 - Filter Rules Summary 

 

 # A Type                       Filter Rules                              M m n 

 - - ---- --------------------------------------------------------------- - - - 
 1 

, SA=0.0.0.0, DA=0.0.0.0, 

                           

 

 2 N 

 3 N 

 4 N 

 5 N 

 6 N 

 
 

                 Enter Filter Rule Number (1-6) to Configure: 1 

M = N means an action can be taken immediately. 
The action is to drop the packet (m = D) if the 
action is matched and to forward the packet 
immediately (n = F) if the action is not matched no 
matter whether there are more rules to be 
checked (there aren’t in this example).

This shows you that you have 
configured and activated (A = Y) a 
TCP/IP filter rule (Type = IP, Pr = 6) 
for destination telnet ports (DP = 
23).