Alcatel-Lucent 1000 adsl User Manual

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If local workstations require connections to the outside world via the modem’s

Ethernet interface and your ISP or corporate network administrator requires that

you use a dial-up connection, you must use Point-to-Point Tunneling Protocol

(PPTP). This protocol enables Point-to-Point Protocol (PPP) over an Ethernet

interface.

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Figure 25 provides an overview of the end-to-end network protocol.

The dial-up icons you create on the PC allow you to establish connections to your

corporate network or to the Internet via your local ISP. Double-clicking a dial-up

icon establishes a local PPTP tunnel from your PC over your local network to the
modem. The modem terminates this tunnel and relays all traffic inside it to a free

ATM connection or to an ATM connection you select.