This section allows you to manually configure your 
WAN2 interface Internet connection settings based on the service provided by 
your Internet Service Provider (ISP). DHCP is the typical connection type where 
connection settings are automatically obtained from your ISP. By default, the 
WAN1 interface is set as the primary interface used for Internet connectivity 
and WAN2 is set to secondary.  To change the default WAN interface priority or 
mode, can modify the settings under Network > Multiple WAN. If you are not 
sure about your Internet connection settings, please contact your ISP for 
details.