TRENDnet TDM-C400, Руководство пользователя

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TDM-E400 / TDM-C400 ADSL2+ Ethernet Modem Router User’s Manual
140
Configuring IP Filters
When you define an IP filter rule and enable the feature, you instruct
the Ethernet Modem Router to examine each data packet it
receives to determine whether it meets criteria set forth in the rule.
The criteria can include the size of the packet, the network or
internet protocol it carries, the direction in which it is traveling (for
example, from the LAN to the Internet or vice versa), the IP address
of the sending computer, the destination IP address, and other
characteristics of the packet data.
If the packet matches the criteria established in a rule, the packet
can either be accepted (forwarded towards its destination), or
denied (discarded), depending on the action specified in the rule.
Viewing Your IP Filter Configuration
To view your current IP filter configuration, log into Web
Configuration, click the Services tab, and then click
IP Filter
in the
task bar. The IP Filter Confirmation page displays:
Figure 59. IP Filter Confirmation Page
The IP Filter Configuration page displays global settings that you
can modify and the IP filter rule table, which shows all currently
established rules. See “Creating IP Filter Rules” on page 142 for a
description of the items that make up a rule. When rules are
defined, you can use the icons that display in the Actions column to
edit (
), delete ( ), and view details on ( ) the corresponding
rule.