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Step 6. Right-click on the icon for your DSL-2120/2120W and select Properties. A properties
window displays with basic information about the DSL-2120/2120W.
6.5 Dynamic DNS
Dynamic DNS (DDNS) allows you to update your current dynamic IP address with one or
many dynamic DNS services so that anyone can contact you through various applications. You
can also access your FTP server or Web site on your own computer using a DNS-like address
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.
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 DNS
name. The Dynamic DNS service provider will give you a password or key.
6.5.1 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.
6.5.2 Configuring Dynamic DNS
To change your DSL-2120/2120W's DDNS, click on DDNS. The screen appears as
shown.
The following table describes the labels in this screen.
LABEL
Proprietary & Confidential
Revision: V1.0
DESCRIPTION
Page 61 of 86
Apr. 23, 2008
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