Chapter 11 Firewall Configuration
P-662H/HW-D Series User’s Guide
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11.6.2  Customized Services 
Use this screen to view  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 
Section 11.8 on page 183. Click the Edit Customized Services link while editing a firewall 
rule to configure a custom service port. This displays the following screen.
Refer to Section 10.1 on page 157 for more information. 
Figure 99   Firewall: Customized Services
The following table describes the labels in this screen. 
11.6.3  Configuring A Customized Service 
Click a rule number in the Firewall Customized Services screen to view a screen as shown. 
Use this screen to create a new custom port or edit an existing one. 
Apply Click Apply to save your customized settings and exit this screen.
Cancel Click Cancel to exit this screen without saving.
Table 65   Firewall: Edit Rule (continued)
LABEL DESCRIPTION
Table 66   Customized Services
LABEL DESCRIPTION
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 Section 11.6.3 on 
page 178 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 the previous screen.