Avaya BCM 4.0 Networking Przewodnik Konfiguracji Pobierz pdf (Strona 556)

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556 Chapter 62 Configuring the Dial-up resources

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Point to Point Protocol over Ethernet (PPPoE)

Refer to the following topics:

• “Settings required for PPPoE”

• “Creating a PPPoE dial up interface” on page 556

• “Configuring a PPPoE interface” on page 557

• “Deleting a PPPoE interface” on page 562

PPPoE is the protocol BCM uses when connecting to a data network using a broadband modem.

Digital Subscriber Line (DSL) modems and cable modems are examples of broadband modems.

When the BCM uses a PPPoE connection, the Internet Service Provider (ISP) can control access,

billing and other types of service on a per-user, rather than a per-site basis.

Settings required for PPPoE

The data packets that pass through the PPPoE connection interact with other routing features in

BCM. As a result, there are several settings you must configure in other features so those features

can use the PPPoE connection. Table 128 shows the features that interact with PPPoE.

Creating a PPPoE dial up interface

To create a PPPoE dial up interface

1 Click Configuration > Resources > Network Interfaces

2 Click Add.

3 The Add Interface dialog box appears. See Figure 174.

Note: To use PPPoE, you must have a BCM system that has two LAN cards.

Table 128 Features that interact with PPPoE

Feature Description of interaction

LAN interfaces When you install PPPoE, the LAN1 interface is dedicated to PPPoE. You must not use the LAN1

interface for any other purpose.

IPSec Tunnels To use IPSec tunnels ove

r the PPPoE interface, BCM requires a single known IP address be

assigned to the PPPoE interface. If your Internet Service Provider uses DHCP to assign the IP

addresses, the DHCP server must assign the same IP address to the PPPoE interface every time

BCM connects.

Internet Clients Clients who want to use the BCM PPPoE interface to access the internet must set their MTU size

to a value less than or equal to 1480 bytes, but not less than 1400 bytes.

Software

Keycode

You must purchase and install the PPPoE Software keycode before you can install PPPoE. For

information about purchasing the PPPoE Software Keycode, contact your Nortel representative.

For information about how to install the PPPoE Software Keycode, refer to the Software Keycode

Installation Guide that comes with your Software Keycode.

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