ZyXEL p-660h-61 사용자 가이드

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Prestige 660H Series User’s Guide 
30-12  
Filter Configuration 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 30-12 Menu 21.1.6.1 Sample Filter  
After you have created the filter set, you must apply it. 
1. 
Enter 11 in the main menu to display menu 11 and type the remote node number to edit. 
2. 
Go to the Edit Filter Sets field, press [SPACE BAR] to choose Yes and press [ENTER]. 
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. 
 
 
 
 
 
 
Menu 21.1.6.1 - TCP/IP Filter Rule 
 
Filter #: 6,1 
Filter Type= TCP/IP Filter Rule 
Active= Yes 
IP Protocol= 6      IP Source Route= No 
Destination: IP Addr= 0.0.0.0 
IP Mask= 0.0.0.0 
Port #= 23 
Port # Comp= Equal 
                 Source: IP Addr= 0.0.0.0 
IP Mask= 0.0.0.0 
Port #=  
Port # Comp= Equal 
TCP Estab= No 
More= No             Log= None 
Action Matched= Drop 
Action Not Matched= Forward 
 
 
Press ENTER to Confirm or ESC to Cancel: 
 
 
Press [SPACE BAR] to choose this 
filter rule type. The first filter rule 
type determines all subsequent filter 
types within a set. 
Select Yes to make the rule active. 
6 is the TCP protocol. 
The port number for the telnet 
service (TCP protocol) is 23. See 
RFC-1060 for port numbers of well-
known services. 
Select Equal here 
as we are looking 
for packets going 
to port 23 only. 
There are no 
more rules to 
check. 
Select Drop here so that the 
packet will be dropped if its 
destination is the telnet port. 
Select Forward here so that the packet will be forwarded if 
its destination is not the telnet port and there are no more 
rules in this filter set to check.  Select Next if there are 
more rules to check.