ZyXEL Communications G-2000 Plus User Manual

ZyAIR G-2000 Plus User’s Guide

317

Chapter 29 Filter Configuration

29.2.2 Configuring a TCP/IP Filter Rule

This section shows you how to configure a TCP/IP filter rule. TCP/IP rules allow you to base
the rule on the fields in the IP and the upper layer protocol, for example, UDP and TCP
headers.

To configure TCP/IP rules, select TCP/IP Filter Rule from the Filter Type field and press
[ENTER] to open Menu 21.1.1.1 - TCP/IP Filter Rule, as shown next

Figure 172 Menu 21.1.1.1 TCP/IP Filter Rule.

Menu 21.1.1.1 - TCP/IP Filter Rule

       Filter #: 1,1
       Filter Type= TCP/IP Filter Rule
       Active= Yes
       IP Protocol= 0    IP Source Route= No
       Destination: IP Addr=
              IP Mask=
              Port #=
              Port # Comp= None
          Source: IP Addr=
              IP Mask=
              Port #=
              Port # Comp= None
       TCP Estab= N/A
       More= No     Log= None
       Action Matched= Check Next Rule
       Action Not Matched= Check Next Rule

Press ENTER to Confirm or ESC to Cancel:
Press Space Bar to Toggle.

The following table describes how to configure your TCP/IP filter rule.

Table 108 TCP/IP Filter Rule

FIELD

DESCRIPTION

OPTIONS

Active

Press [SPACE BAR] and then [ENTER] to select Yes to activate

the filter rule or No to deactivate it.

Yes
No

IP Protocol

Protocol refers to the upper layer protocol, e.g., TCP is 6, UDP is

17 and ICMP is 1. Type a value between 0 and 255. A value of 0

matches ANY protocol.

0-255

IP Source Route

Press [SPACE BAR] and then [ENTER] to select Yes to apply

the rule to packets with an IP source route option. Otherwise the

packets must not have a source route option. The majority of IP

packets do not have source route.

Yes
No

Destination

IP Address

Enter the destination IP Address of the packet you wish to filter.

This field is ignored if it is 0.0.0.0.

0.0.0.0

IP Mask

Enter the IP mask to apply to the Destination: IP Addr.

0.0.0.0