ZyXEL Prestige 202H Plus ISDN Router 91-003-154001B 用户手册

P-202H Plus v2 User’s Guide

Chapter 9 Firewall Configuration

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Configure customized services and port numbers not predefined by the ZyXEL Device. For a 
comprehensive list of port numbers and services, visit the IANA (Internet Assigned Number 
Authority) website. For further information on these services, please read 

. Click the Edit Available Service link while editing a firewall rule to configure a custom 

service port. This displays the following screen.

Figure 37   Firewall > Customized Services

The following table describes the labels in this screen. 

Apply

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

Cancel

Click Cancel to return to the previously saved settings.

Table 25   Firewall > Source and Destination Addresses

Table 26   Firewall > Customized Services

No.

This is the number of your customized port. Click a rule’s number of a service to go to a 

screen where you can configure or edit a customized service. See 

for more information.

Name

This is the name of your customized service.

Protocol

This shows the IP protocol (TCP, UDP or TCP/UDP) that defines your customized 

service.

Port

This is the port number or range that defines your customized service.

Back

Click Back to return to the Firewall Edit Rule screen.