NETGEAR FVS336Gv3 - Manage Dynamic DNS Connections; Dynamic DNS; Configure Dynamic DNS

Configure the IPv4 Internet and WAN Settings
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ProSAFE Dual WAN Gigabit WAN SSL VPN Firewall FVS336Gv3
Manage Dynamic DNS Connections
The following sections provide information about managing Dynamic DNS:
• Dynamic DNS
• Configure Dynamic DNS
Dynamic DNS
Dynamic DNS (DDNS) is an Internet service that allows devices with varying public IPv4
addresses to be located using Internet domain names. To use DDNS, you must set up an
account with a DDNS provider such as DynDNS.org, TZO.com, Oray.net, or 3322.org. (The
web management interface of the VPN firewall provides links to these DDNS providers.) The
VPN firewall firmware includes software that notifies DDNS servers of changes in the WAN
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 do 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 configure your account information on the VPN firewall, when your ISP-assigned IP
address changes, your VPN firewall automatically contacts your DDNS service provider, logs
in to your account, and registers your new IP address. Consider the following:
• For auto-rollover mode, you need a fully qualified domain name (FQDN) to implement
features such as exposed hosts and virtual private networks regardless of whether you
have a fixed or dynamic IP address.
• For load balancing mode, you might still need a fully qualified domain name (FQDN)
either for convenience or if you have a dynamic IP address.
Note: If your ISP assigns a private WAN IP address such as 192.168.x.x or
10.x.x.x, the DDNS service does not work because private addresses
are not routed on the Internet.
Configure Dynamic DNS
The following procedure describes how to configure dynamic DNS (DDNS) for both WAN
interfaces.