Linksys WRVS4400N Manual page 35

WAN
The WAN Setup screen provides Internet Connection Type and DDNS configurations on
the WAN port of the Wireless Router. Before starting, you need to find out the Internet
Connection Type and settings used by your ISP. If the Router is used as an Intranet
Router, you can mostly use the default settings. If you want to use the dynamic DNS
feature, you will need to sign up for a DDNS service.
Internet Connection Type
The Router supports six connection types. Each WAN Setup screen and available options
will differ depending on what kind of connection type you select.
Automatic Configuration - DHCP
By default, the Router's Configuration Type is set to Automatic Configuration - DHCP. The Router
will get its IP address from a DHCP server of the ISP. Most cable modem ISPs use this option.
Static IP
If your connection uses a permanent IP address to connect to the Internet, then select Static IP.