4000 Router Series Layer 2 - WAN Configuration Guide

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Configuring a PPPoE client

PPPoE client configuration includes dialer interface configuration and PPPoE session configuration.

A PPPoE session can operate in one of the following modes:

• Permanent mode—A PPPoE session is established immediately when the line is physically up. This

type of session remains until the physical link comes down or until the session is disconnected.

• On-demand mode—A PPPoE session is established when there is a demand for data transmission

instead of when the line is physically up. It is terminated when idled for a specific period of time.

• Diagnostic mode—A PPPoE session is established immediately after the device configurations finish,

and the device automatically terminates the PPPoE session and then tries to re-establish a PPPoE

session at a pre-configured interval. By establishing and terminating PPPoE sessions periodically,

you can monitor the operating status of the PPPoE link.

The PPPoE session operating mode is determined by your configuration on the dialer interface:

• Permanent mode—When you configure the link idle time as 0 by using the dialer timer idle

command and do not configure the dialer diagnose command, this mode is specified.

• On-demand mode—When you configure the link idle time as a value other than 0 by using the

dialer timer idle command and do not configure the dialer diagnose command, this mode is

specified.

• Diagnostic mode—When you configure the dialer diagnose command, this mode is specified.

Configuring a dialer interface

Before establishing a PPPoE session, you must first create a dialer interface and configure bundle

dial-on-demand routing (DDR) on the interface. Each PPPoE session uniquely corresponds to a dialer

bundle, and each dialer bundle uniquely corresponds to a dialer interface. Therefore, a PPPoE session

uniquely corresponds to a dialer interface.

For more information about configuring dialer interfaces, bundle DDR, and dialer bundles, see

"Configuring DDR."

Configuring a dialer interface for a PPPoE client

Ste

Command

Remarks

1. Enter system view.

system-view N/A

2. Create a dialer access group

and configure a dial access

control rule to specify the

conditions triggering DDR

calls.

dialer-group dialer-group rule

{ protocol-name { deny | permit } | acl

{ acl-number | name acl-number }

By default, no dialer group

exists.

3. Create a dialer interface and

enter its view.

interface dialer number N/A

4. Assign an IP address to the

interface.

ip address { address mask |

ppp-negotiate }

By default, no IP address is

configured.

5. Enable bundle DDR on the

interface.

dialer bundle enable By default, no DDR is enabled.