User manual

Section 3 – Configuration
D-Link DSL-2740R User Manual
24
Dynamic IP Address
A
Dynamic IP Address connection configures the Router to automatically
obtain its global IP address from a DHCP server on the ISP’s network.
The service provider assigns a global IP address from a pool of
addresses available to the service provider. Typically the IP address
assigned has a long lease time, so it will likely be the same address
each time the Router requests an IP address.
To configure a Dynamic IP Address WAN connection, follow these steps:
1. Choose the Connection Type from the drop-down menu. This
defines both the connection protocol and encapsulation method
used for your ADSL service. The available options are 1483
Bridged IP LLC and 1483 Bridged IP VC-Mux. If you have not been
provided specific information for the Connection Type setting, leave
the default setting.
2. Some ISPs record the unique MAC Address of your computer’s
Ethernet adapter when you first access their network. This can
prevent the Router (which has a different MAC address) from being
allowed access to the ISPs network (and the Internet). To clone the
MAC address of your computer’s Ethernet adapter, click the Clone
MAC Address button.
3. NAT should remain Enable. If you disable NAT, you will not be able
to use more than one computer for Internet connections. If you are
using multiple virtual connections, NAT functions system-wide,
therefore if it is disabled, NAT will be disabled on all connections.
4. IGMP is set to Disable by default. Select Enable to allow IGMP
packets to go through the WAN interface in both directions.
5. Leave the Default Route enabled if you want to use the Router as
the default route to the Internet for your LAN. Whenever a
computer on the LAN attempts to access the Internet, the Router
becomes the Internet gateway to the computer. If you have an