Configure Dynamic Dns - NETGEAR UTM9S Reference Manual

4. In the Add SLOT-x Secondary Addresses section of the screen, enter the following settings:
• IP Address. Enter the secondary address that you want to assign to the DSL
interface.
• Subnet Mask. Enter the subnet mask for the secondary IP address.
5. Click the Add table button in the rightmost column to add the secondary IP address to the
List of Secondary WAN addresses table.
Repeat step 4
of Secondary WAN addresses table.

To delete one or more secondary addresses:
1. In the List of Secondary WAN addresses table, select the check box to the left of each
address that you want to delete, or click the Select All table button to select all
addresses.
2. Click the Delete table button.

Configure Dynamic DNS

Dynamic DNS (DDNS) is an Internet service that allows devices with varying public IP
addresses to be located using Internet domain names. To use DDNS, you need to set up an
account with a DDNS provider such as DynDNS.org, TZO.com, Oray.net, or 3322.org. (Links
to DynDNS, TZO, Oray, and 3322 are provided for your convenience as option arrows on the
DDNS configuration screens.) The UTM9S firmware includes software that notifies DDNS
servers of changes in the DSL IP address, so that the services running on this network can
be accessed by others on the Internet.
If your network has a permanently assigned IP address, you can register a domain name and
have that name linked with your IP address by public Domain Name Servers (DNS).
However, if your Internet account uses a dynamically assigned IP address, you will not know
in advance what your IP address will be, and the address can change frequently—hence, the
need for a commercial DDNS service, which allows you to register an extension to its
domain, and restores DNS requests for the resulting fully qualified domain name (FQDN) to
your frequently changing IP address.
After you have configured your account information on the UTM9S, when your ISP-assigned
IP address changes, your UTM9S automatically contacts your DDNS service provider, logs in
to your account, and registers your new IP address.
ProSecure Unified Threat Management (UTM) Appliance
and step 5 for each secondary IP address that you want to add to the List
xDSL Module for the UTM9S
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