ZyXEL Communications VSG1432-B101 Series User Manual

Chapter 13 Dynamic DNS Setup

VSG1432-B101 Series User’s Guide

Figure 76   Example of DNS Routing Topology

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.

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. 

• Use  the  DNS Entry screen to view, configure, or remove DNS routes (

• Use  the  Dynamic DNS screen to enable DDNS and configure the DDNS settings 

on the ZyXEL Device (

).

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 

eth10.0

VDSL_PPoE/ppp0.1

DNS:10.10.23.7

DNS:168.92.5.1

sip.service.com

mail.example.com

(Default)