ZyXEL p-320w Guía Del Usuario

P-320W User’s Guide

112 

Chapter 9 Firewall

The following table describes the labels in this screen.

Table 47   Firewall: Services

Enable Services 

Blocking

Select this check box to enable this feature.

Available Services This is a list of pre-defined services (ports) you may prohibit your LAN computers 

from using. Please see 

 

for more information on services 

available.
Select the port you want to block using the drop-down list and click Add to add the 

port to the Blocked Services field.

Blocked Services

This is a list of services (ports) that will be inaccessible to computers on your LAN 

once you enable service blocking. Choose the IP port (TCP, UDP or TCP/UDP) 

that defines your customized port from the drop down list box.

Custom Port

A custom port is a service that is not available in the pre-defined Available 

Services list and you must define using the next two fields.

Type

Services are either TCP and/or UDP. Select from either TCP or UDP.

Port Number

Enter the port number range that defines the service. For example, suppose you 

want to define the Gnutella service. Select TCP type and enter a port range from 

6345-6349.

Add

Select a service from the Available Services drop-down list and then click Add to 

add a service to the Blocked Services.

Delete

Select a service from the Blocked Services list and then click Delete to remove 

this service from the list.

Clear

Click Clear to empty the Blocked Services.

Day to Block:

Select a check box to configure which days of the week (or everyday) you want the 

content filtering to be active. 

Time of Day to 

Block (24-Hour 

Format)

Select the time of day you want service blocking to take effect. Configure blocking 

to take effect all day by selecting the All Day check box. You can also configure 

specific times that by entering the start time in the Start (hr) and Start (min) fields 

and the end time in the End (hr) and End (min) fields. Enter times in 24-hour 

format, for example, "3:00pm" should be entered as "15:00".

Apply

Click Apply to save the settings. 

Reset

Click Reset to start configuring this screen again.