TRENDnet TDM-C500 User Manual page 38

Channel:
VPI: Virtual Path Identifier is a virtual path used for cell routing that is identified by an 8-bit
field in the ATM cell header. The VPI field specifies this 8-bit identifier for routing.
VCI: A Virtual Channel Identifier is a virtual channel that is identified by a unique numerical
tag that is defined by a 16-bit field in the ATM cell header. The purpose of the virtual
channel is to identify where the cell should travel. The VCI field specifies this 16-bit
numerical tag that determines the destination.
Encapsulation: There are 2 Encapsulation type:
LLC
VC-Mux
LLC and VC-Mux are two different methods of encapsulating the PPP packet.
Note:
Contact your ISP to make sure which encapsulation is being supported.
Channel Mode: Select "1483 Routed" from the drop down manual.
Enable NAPT: Select "Disable" or "Enable" the NAPT functionality. Default setting is
"Enable".
WAN IP:
Type: Click the radio button to select "Fixed IP" mode.
Fixed IP: You need to fill in the "Local IP Address", "Subnet Mask" and "Remote
IP Address" which will be provided by your ADSL Service provider or ISP. You need
to go to Services – DNS – DNS Server configuration page to fill in your DNS setting.
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