ZyXEL g-2000 plusv2 Guia Do Utilizador

ZyXEL G-2000 Plus v2 User’s Guide

Chapter 11 Firewall Screens

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Configure customized ports for services not predefined by the ZyXEL device (See 
“Predefined Services” on page 159

for a list of predefined services). For a comprehensive list 

of port numbers and services, visit the IANA (Internet Assigned Number Authority) web site. 

Click the Add button under Custom Service while editing a firewall rule to configure a 
custom service. This displays the following screen.

Figure 60   Creating/Editing A Custom Service

The following table describes the labels in this screen.

Action for 

Matched Packets

Use the drop-down list box to select whether to discard (Block) or allow the 

passage of (Forward) packets that match this rule. 

Apply

Click Apply to save your customized settings and exit this screen.

Cancel

Click Cancel to exit this screen without saving.

Table 51   Creating/Editing A Firewall Rule

Table 52   Creating/Editing A Custom Service

Service Name

Enter a unique name for your custom service.

Service Type

Choose the IP port (TCP, UDP or Both) that defines your customized service 

from the drop down list box.

Port

Select Single to specify one port only or Range to specify a span of ports that 

define your customized service. 

Apply

Click Apply to save your customized settings and exit this screen.

Cancel

Click Cancel to exit this screen without saving.