ZyXEL g-2000 plusv2 Guia Do Utilizador
ZyXEL G-2000 Plus v2 User’s Guide
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Chapter 28 Filter Configuration
Refer to the next section for information on configuring the filter rules.
28.2.1 Configuring a Filter Rule
To configure a filter rule, type its number in Menu 21.1.1 - Filter Rules Summary and press
[ENTER] to open menu 21.1.1.1 for the rule.
[ENTER] to open menu 21.1.1.1 for the rule.
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 filter field or vice versa, the ZyXEL
device will warn you and will not allow you to save.
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 filter field or vice versa, the ZyXEL
device will warn you and will not allow you to save.
28.2.2 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.
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
[ENTER] to open Menu 21.1.1.1 - TCP/IP Filter Rule, as shown next
Table 108 Rule Abbreviations Used
ABBREVIATION
DESCRIPTION
IP
Pr
Protocol
SA
Source Address
SP
Source Port number
DA
Destination Address
DP
Destination Port number
GEN
Off
Offset
Len
Length