ZyXEL Communications 1000 User Manual

ZyWALL USG 1000 User’s Guide

Dynamic DNS (DDNS) services let you use a domain name with a dynamic IP 
address.

• Use  the  DDNS screen (see 

) to view a list of the 

configured  DDNS domain names and their details.

• Use  the  DDNS Add/Edit screen (see 

) to add a 

domain name to the ZyWALL or to edit the configuration of an existing domain 

name.

DNS maps a domain name to a corresponding IP address and vice versa. Similarly, 
dynamic DNS maps a domain name to a dynamic IP address. As a result, anyone 
can use the domain name to contact you (in NetMeeting, CU-SeeMe, etc.) or to 
access your FTP server or Web site, regardless of the current IP address.

Note: You must have a public WAN IP address to use Dynamic DNS.

You must set up a dynamic DNS account with a supported DNS service provider 
before you can use Dynamic DNS services with the ZyWALL. When registration is 
complete, the DNS service provider gives you a password or key. At the time of 
writing, the ZyWALL supports the following DNS service providers. See the listed 
websites for details about the DNS services offered by each. 

Table 94   DDNS Service Providers

DynDNS

Dynamic DNS, Static DNS, and Custom DNS www.dyndns.com

Dynu Basic, 

Premium

www.dynu.com

No-IP No-IP

www.no-ip.com

Peanut Hull 

Peanut Hull

www.oray.cn 

3322

3322 Dynamic DNS, 3322 Static DNS

www.3322.org