D-Link DSL-2740R User Manual page 13

Section 2 - Installation
VPI
Most users will not be required to change this setting. The Virtual Path Identifier (VPI) is used in conjunction with the Virtual Channel Identifier
(VCI) to identify the data path between your ADSL service provider's network and your computer. If you are setting up the router for multiple
virtual connections, you will need to configure the VPI and VCI as instructed by your ADSL service provider for the additional connections. This
setting can be changed in the WAN Settings window of the web management interface.
VCI
Most users will not be required to change this setting. The Virtual Channel Identifier (VCI) used in conjunction with the VPI to identify the data
path between your ADSL service provider's network and your computer. If you are setting up the router for multiple virtual connections, you will
need to configure the VPI and VCI as instructed by your ADSL service provider for the additional connections. This setting can be changed in the
WAN Settings window of the web management interface.
D-Link DSL-2740R 13