ZyXEL Communications ZyWALL 300 User Manual

 Chapter 15 DDNS

ZyWALL USG 300 User’s Guide

The DDNS screen provides a summary of all DDNS domain names and their configuration. In 
addition, this screen allows you to add new domain names, edit the configuration for existing 
domain names, and delete domain names.

To access this screen, login to the web configurator. When the main screen appears, click 
Network > DDNS. The following screen appears, providing a summary of the existing 
domain names.

Figure 163   Network > DDNS        

The following table describes the labels in this screen. See 

information as well.  

Table 77   Network > DDNS

Profile Name

This field displays the descriptive profile name for this entry.

Domain Name

This field displays each domain name the ZyWALL can route.

DDNS Type

This field displays which DynDNS service you are using.

Wildcard

This field displays whether or not *.yourhost.dyndns.org (for example, 

www.yourhost.dyndns.org

) is routed to the same IP address as 

yourhost.dyndns.org

.

IP Address 
Update Policy

This field displays how the ZyWALL determines the IP address for the domain 
name.
iface - The IP address comes from the specified WAN Interface and HA Interface.
auto -The DDNS server checks the source IP address of the packets from the 
ZyWALL for the IP address to use for the domain name.
custom - The IP address is fixed.
See 

 for more information.

WAN Interface

This field applies when the IP Address Update Policy is iface. This field displays 
which interface is mapped to the domain name.

HA* Interface

High Availability maps an alternative WAN interface to the domain name when the 
WAN interface is not available. This field applies when the IP Address Update 
Policy is iface. This field displays which alternative interface is mapped to the 
domain name if the WAN interface is not available. If you are not using HA, the 
field says none.

Add icon

This column provides icons to add, edit, and remove domain names.
To add a domain name, click the Add icon at the top of the column. The DDNS 
Add/Edit screen appears.
To edit a domain name, click the Edit icon next to the domain name. The DDNS 
Add/Edit screen appears.
To delete a domain name, click on the Remove icon next to the ISP account. The 
web configurator confirms that you want to delete the account before doing so.