Tcp/Ip Filter Rule - ZyXEL Communications Prestige 681 User Manual

To speed up filtering, all rules in a filter set must be of the same class, i.e., protocol filters or generic filters.
The class of a filter set is determined by the first rule that you create. When applying the filter sets to a
port, separate menu fields are provided for protocol and device filter sets. If you include a protocol filter set
in a device filters field or vice versa, the Prestige will warn you and will not allow you to save.

9.3.1 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, e.g., UDP and TCP, headers.
To configure a TCP/IP rules, select TCP/IP Filter Rule from the Filter Type field and press [ENTER] to
open Menu 21.1.1 - TCP/IP Filter Rule, as shown next.
Press Space Bar to Toggle.
The following table describes how to configure your TCP/IP filter rule.
Field Description
Active Press the [SPACEBAR] to activate (Yes) or deactivate
(No) the filter rule.
IP Protocol Protocol refers to the upper layer protocol, e.g., TCP is 6,
UDP is 17 and ICMP is 1. This value must be between 0
Filter Configuration
Menu 21.1.1 - TCP/IP Filter Rule
Filter #: 1,1
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 #= 137
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= Check Next Rule
Action Not Matched= Check Next Rule
Press ENTER to Confirm or ESC to Cancel:
Figure 9-6 Menu 21.1.1 - TCP/IP Filter Rule
Table 9-5 TCP/IP Filter Rule Menu Fields
Prestige 681 SDSL Router
Log= None
Option
Yes/No
0-255
9-7