Asus WL-300g - Manual (Page 40)

3. Software
40 ASUS 802.11g Access Point
Chapter 3 - Software Configuration
Home Gateway
Virtual Server allows you to make
services, like WWW, FTP, provided
by a server in your local network
accessible for outside users. DDNS
allows users to export host names to
the Internet through a DDNS service
provider. Each time your ASUS
802.11g AP connect to the Internet
and get an IP address from an ISP, this
function will update your IP address
to the DDNS service provider
automatically, so that any user on the
Internet can access your servers
through a pre-defined name registered
in a DDNS service provider.
Virtual Server and Dynamic-DNS (DDNS)
Note: Currently, clients connected to DynDNS or TZO are embedded
in ASUS 802.11g AP. You can click Free Trial link behind each DDNS
service provider to start with a free trial account.