Configuring A Filter Set; Figure 24-3 Menu 21.1 Filter Set Configuration - ZyXEL Communications ZyAIR User Manual

You can apply up to four filter sets to a particular port to block various types of packets. Because each filter
set can have up to six rules, you can have a maximum of 24 rules active for a single port.
For incoming packets, your ZyAIR applies data filters only. Packets are processed depending on whether a
match is found. The following sections describe how to configure filter sets.
The Filter Structure of the ZyAIR
A filter set consists of one or more filter rules. Usually, you would group related rules, for example, all the
rules for NetBIOS, into a single set and give it a descriptive name. You can configure up to twelve filter
sets with six rules in each set, for a total of 72 filter rules in the system.

24.2 Configuring a Filter Set

To configure a filter set, follow the steps shown next.
Step 1. Enter 21 from the main menu.
Step 2. Enter 1 to display Menu 21.1 – Filter Set Configuration.
Filter
Set #
------
1
2
3
4
5
6
Step 3. Type the filter set to configure (no. 1 to 12) and press [ENTER]
Step 4. Type a descriptive name or comment in the Comments field and press [ENTER].
Step 5. Press [ENTER] at the message
Rules Summary (that is, if you selected filter set 1 in menu 21.1).
The following figures show the summary of three filter sets of your ZyAIR.
Filter and Firewall Configuration
Menu 21.1 - Filter Set Configuration
Comments
-----------------
NetBIOS_WAN
NetBIOS_LAN
TEL_FTP_WEB_WAN
_______________
_______________
_______________
Enter Filter Set Number to Configure= 0

Figure 24-3 Menu 21.1 Filter Set Configuration

Press ENTER to confirm..." to display Menu 21.1.1 – Filter
"
ZyAIR Wireless Gateway Series User's Guide
Filter
Set # Comments
------ -----------------
7 _______________
8 _______________
9 _______________
10 _______________
11 _______________
12 _______________
.
24-3