ZyXEL NBG-417N Manuale Utente

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NBG-417N User’s Guide
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 12 
Dynamic DNS
12.1  Overview 
Dynamic DNS (DDNS) services let you use a domain name with a dynamic IP 
address.
12.2  What You Can Do in the DDNS Screen
Use the Dynamic DNS screen (
) to enable DDNS and 
configure the DDNS settings on the NBG-417N.
12.3  What You Need To Know About DDNS
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 NetMeeting, CU-
SeeMe, etc.). 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.
12.3.1  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.
Note: If you have a private WAN IP address, then you cannot use Dynamic DNS. You 
must have a public WAN IP address.