Figure 390 Example Filter: Menu 21.1.3.1; Figure 391 Example Filter Rules Summary: Menu 21.1.3 - ZyXEL Communications ZyWall 5 Series User Manual

6 Enter 1 to configure the first filter rule (the only filter rule of this set). Make the entries in
this menu as shown in the following figure.

Figure 390 Example Filter: Menu 21.1.3.1

The port number for the telnet service (TCP protocol) is 23. See RFC 1060 for port numbers of
well-known services.
When you press [ENTER] to confirm, you will see the following screen. Note that there is
only one filter rule in this set.

Figure 391 Example Filter Rules Summary: Menu 21.1.3

# A Type
- - ---- ----------------------------------------------- - - -
1 Y IP
2 N
3 N
4 N
5 N
6 N
Enter Filter Rule Number (1-6) to Configure: 1
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).
Chapter 44 Filter Configuration
Menu 21.1.3.1 - TCP/IP Filter Rule
Filter #: 3,1
Filter Type= TCP/IP Filter Rule
Active= Yes
IP Protocol= 6
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 #= 0
Port # Comp= None
TCP Estab= No
More= No
Action Matched= Drop
Action Not Matched= Forward
Press ENTER to Confirm or ESC to Cancel:
Press Space Bar to Toggle.
Menu 21.1.3 - Filter Rules Summary
Pr=6, SA=0.0.0.0, DA=0.0.0.0, DP=23
ZyWALL 5/35/70 Series User's Guide
IP Source Route= No
Log= None
Filter Rules M m n
N D F
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