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Chapter 5.  Advanced Settings 
 
Wireless Cable Modem Gateway CG2003D User Manual 
Dynamic DNS
A dynamic DNS service provides a central public database where information (such as e-mail 
addresses, host names and IP addresses) can be stored and retrieved. The dynamic DNS 
server also stores password-protected information and accepts queries based on e-mail 
addresses.
If you want to use a dynamic DNS service, you have to register for it. The dynamic DNS client 
service provider will give you a password or key.
To configure dynamic DNS: 
1. 
Select Advanced > Dynamic DNS. The DDNS screen displays.
2. 
Select www.DynDNS.org in the DDNS Service drop-down list.
3. 
Enter the following information:
•     
User Name
. Enter the user name for your dynamic DNS account.
•     
Password
. Enter the password (or key) for your dynamic DNS account.
•     
Host Name
. Enter the host same that your dynamic DNS service provider gave you. 
(The DDNS service provider may call this the domain name.)
4. 
Click Apply to save your settings.
To disable dynamic DNS:
1. 
In the DDNS Service field, select Disabled.
2. 
Click Apply to save your settings.