ZyXEL N4100 Guia Do Utilizador

N4100 User’s Guide

DDNS (Dynamic Domain Name System) allows you to update your dynamic IP 
address with one or many dynamic DNS services so that anyone can contact you 
(in NetMeeting, CU-SeeMe or other services). This is for cases where the ISP gives 
the N4100 a dynamic IP address but you still want to use a domain name. You can 
also access your FTP server or Web site on your own computer using a domain 
name (for example, myhost.dhs.org, where myhost is a name of your choice), 
which will never change instead of using an IP address that changes each time you 
reconnect. 

Note: You must go to the Dynamic DNS service provider’s website and register a user 

account and a domain name before you can use the Dynamic DNS service with 
your N4100.

The Dynamic DNS service provider will give you a password or key.

Note: If you have a private WAN IP address, then you cannot use Dynamic DNS.

Use the DDNS screen (

) to set the N4100 to use DDNS.

The following terms and concepts may help as you read through this chapter.

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.