D-Link DVG-2101S - Manual (Page 15)

Setup
DVG-2101S User Manual
13
Setup
Internet Setup
Connection Type
The WAN connection type setting allows you to configure this device to
establish your broadband Internet connection. Your Internet Service Provider
(ISP) should provide the necessary information to you when you subscribe to
the Internet access service.
Dynamic IP
Choose Dynamic IP if the VoIP Adapter obtains its WAN IP address from a
DHCP server.
Host Name Input the host name of the DHCP server.