ZyXEL Communications P-660HN-F1 User Manual

Chapter 9 Firewalls

P-660HN-F1 User’s Guide

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. See 

 for some examples. Click the Edit 

Customized Services link while editing a firewall rule to configure a custom service port. 
This displays the following screen.

Figure 88   Security > Firewall > Rules: Edit: Edit Customized Services

The following table describes the labels in this screen. 

Use this screen to add a customized rule or edit an existing rule. Click a rule number in the 
Firewall Customized Services screen to display the following screen.

Table 55   Security > Firewall > Rules: Edit: Edit Customized Services

No.

This is the number of your customized port. Click a rule’s number of a service to go to the 
Firewall Customized Services Config screen to configure or edit a customized service.

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 this to return to the Firewall Edit Rule screen.