TP-Link TD-W9970 User Manual page 24

ATM Configuration:
VPI (0~255): Identifies the virtual path between endpoints in an ATM network. The valid range

is from 0 to 255. Please enter the value provided by your ISP.
VCI (1~65535): Identifies the virtual channel endpoints in an ATM network. The valid range is

from 1 to 65535 (1 to 31 is reserved for well-known protocols). Please enter the value
provided by your ISP.
1) Static IP
Select this option if your ISP provides static IP information to you. You should set static IP address,
IP subnet mask, and gateway address in the screen below.
Click Advance, you can see the advanced selections of ATM Configuration.
Encapsulation Mode:

leave it default.
ATM Qos Type: Select ATM Qos Type provided by ISP, and the type is UBR by default.

WAN Service Setup:
Enable IPv4: Check the box to enable IPv4.

IP Address: Enter the IP address in dotted-decimal notation provided by your ISP.

Subnet Mask: Enter the subnet mask in dotted-decimal notation provided by your ISP, usually

is 255.255.255.0.
Select the encapsulation mode for the Static IP Address. Here you can
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TD-W9970 User Guide