ZyXEL Communications zywall 50 User Manual
ZyWALL 50 Internet Security Gateway
15-16
Filter
Configuration
When you press [ENTER] to confirm, you will see the following screen. Note that there is only one filter
rule in this set.
rule in this set.
Figure 15-13 Example Filter Rules Summary — Menu 21.1.3
After you’ve created the filter set, you must apply it.
Step 1. Enter 11 from the main menu to go to menu 11.
Step 2. Go to the Edit Filter Sets field, press [SPACE BAR] to select Yes and press [ENTER].
Step 3. This brings you to menu 11.5. Apply a filter set (our example filter set 3) as shown in Figure
15-16.
Step 4. Press [ENTER] to confirm after you enter the set numbers and to leave menu 11.5.
Menu 21.1.3 - Filter Rules Summary
# A Type
Filter Rules
M m n
- - ---- --------------------------------------------------------------- - - -
1 Y IP
1 Y IP
Pr=6, SA=0.0.0.0, DA=0.0.0.0, DP=23
N D F
2 N
3 N
4 N
5 N
6 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).
configured and activated (A =
Y) a TCP/IP filter rule (Type =
IP, Pr = 6) for destination
telnet ports (DP = 23).
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).
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).