TD-W8970N Wireless N ADSL2+ Modem Router User Guide
4.4.2.2 ATM-EoA-IPoE
If your ISP provides an IPoE connection and you need to use an ATM Interface, follow the steps
below to add a WAN service over a selected ATM interface:
1. Add a new ATM interface and select EoA option for DSL Link Type (4.4.1.1 ATM interface).
2. Click the Add button on the screen (as shown Figure 4-7). Select WAN Service Interface over
ATM PVC on the next screen (as shown Figure 4-8).
3. If your ISP provides an IP oE connection, select IPoE option for the WAN service type on the
screen (as shown Figure 4-9), and click Next button to continue.
4. Enter parameters in the following bla nks to configure the WAN IP Address and click Next.
Figure 4-15
¾ Obtain an IP address automatically: Select this option, the Router will be able to obtain IP
network information dynamically from a DHCP server provided by your ISP.
) Note:
1) The response message from a DHC P server typically contains a number of configuration
parameters (DHCP options) for the Router. The DHCP options include IP network information,
and also the vendor-specific options. In some cases, the Router is implemented to perform
user-defined operations (as shown below). You can implement your own treatment of all such
options.
2) If the Router is functioning as a DHCP client, it must identify itself in option 61 (client-identifier)
in every DHCP message. DUID/IAID is portion of option 61.
• Option 60 Vendor ID: The option code 60 used to identify Vendor class.
• Option 61 IAID: IAID (Identity Association ID) assigns an Identity Association ID to
individual interfaces. In cases where the device is functioning with a single DHCP client
identity, it must use value 1 for IAID for all DHCP interactions. In cases where the device is
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