SMC Networks SMC7004ABR V.2 - Manual (Page 72)

Advanced Setup
69
DDNS (Dynamic DNS) Settings
Dynamic DNS provides users on the Internet with a method to tie
their domain name(s) to computers or servers. DDNS allows your
domain name to follow your IP address automatically by having
your DNS records changed when your IP address changes.
Domain Name – A symbolic network address for the Barricade™
Router formatted as a series of alphanumeric strings separated
by periods.
E-mail – Enter your e-mail address here.
Key – Enter your key here to sign in. If you do not already have a
key, click on the Get free 30-day trial key! link.
The section also has a “Server Configuration” section that
automatically opens the port options checked in the Virtual
Server section. Simply enter in the IP Address of your server,
such as a web server, and then click on the port option HTTP
Port 80 so users can access your server from the WAN
connection (Internet).