Installation Instructions Part 1

Section 3 – Configuration
D-Link DSL-2640R User Manual 22
Dynamic 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 Copy Your PC’s MAC Address button.
3. If you are instructed to change the VPI or VCI values, type in the values
assigned for your account.
4. When you are satisfied that all the WAN settings are configured correctly, click
the Apply Settings button. This will save the settings and reboot the Router to
let your changes take effect.
5. Upon restarting, the Router should automatically establish the WAN connection.
If it does not, click the Connect button at the bottom of this window.
6. Turn on the Default Route feature 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 alternative route for Internet traffic you may turn this off without
effecting the Router’s connection.
7. Leave the TCP MTU Option value at the default setting unless you have specific
reasons to change this.
8. Select the desired Dynamic Route from RIP1, RIP2-B, or RIP2-M. Next, set the
Direction to Both, IN Only, OUT Only, or None.
9. The Multicast feature is Disabled by default. Toggle between IGMP v1 and
IGMP v2.
10. When you are satisfied that all the Internet settings are configured correctly, click
on the SAVE button.
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.