Paradyne 1740 SHDSL User Manual page 26

2/4-wire router

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1740 SHDSL 2/4-Wire Router User's Guide

3.4.4

PPPoA

When a VC is configured for PPPoA, the router will auto-detect the Authentication code (PAP or CHAP),

and the NAPT function will be enabled automatically.

STEP 1: Click WAN Setup on the Basic menu bar.

STEP 2: Enter values for the following fields: VPI, VCI, Encapsulation (LLC or VC MUX), Enable NAPT.

VPI

VCI

LLC Encapsulation:

VC Multiplexing:

Enable NAPT

Enter a value for the virtual path identifier

Enter a value for the virtual channel identifier

With LLC encapsulation, a link control header is added to the

Ethernet packet that identifies the protocol type (Ethernet). This

allows multiple protocols to be transmitted over the ATM Virtual

Circuit.

With VC Multiplexing, no link control header is needed as the

ATM Virtual Circuit is assumed to be carrying a single protocol.

Selecting Enabling NAPT will enable Network Port Address

Translation on the WAN interface.

September 2004

1740-A2-GB20-10

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