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ADSL Series User’s Guide 183
CHAPTER 12
Dynamic DNS
12.1 Overview
This chapter discusses how to configure your ZyXEL Device to use Dynamic DNS.
Dynamic DNS allows you to update your current dynamic IP address with one or many dynamic
DNS services so that anyone can contact you (in applications such as NetMeeting and CU-SeeMe).
You can also access your FTP server or Web site on your own computer using a domain name (for
instance myhost.dhs.org, where myhost is a name of your choice) that will never change instead of
using an IP address that changes each time you reconnect. Your friends or relatives will always be
able to call you even if they don't know your IP address.
First of all, you need to have registered a dynamic DNS account with www.dyndns.org. This is for
people with a dynamic IP from their ISP or DHCP server that would still like to have a domain name.
The Dynamic DNS service provider will give you a password or key.
12.1.1 What You Need To Know
DYNDNS Wildcard
Enabling the wildcard feature for your host causes *.yourhost.dyndns.org to be aliased to the same
IP address as yourhost.dyndns.org. This feature is useful if you want to be able to use, for example,
www.yourhost.dyndns.org and still reach your hostname.
If you have a private WAN IP address, then you cannot use Dynamic DNS.
12.2 The Dynamic DNS Screen
Use the Dynamic DNS screen to enable DDNS and configure the DDNS settings on the ZyXEL
Device. To change your ZyXEL Device’s DDNS, click Network Setting > Dynamic DNS. The
screen appears as shown.